diff --git a/poky/documentation/Makefile b/poky/documentation/Makefile
index 7d4058a..4d721d3 100644
--- a/poky/documentation/Makefile
+++ b/poky/documentation/Makefile
@@ -1,390 +1,35 @@
+# Minimal makefile for Sphinx documentation
 #
-# SPDX-License-Identifier: CC-BY-2.0-UK
-#
-# This is a single Makefile to handle all generated Yocto Project documents,
-# which includes the BitBake User Manual and the Toaster User Manual.
-# The Makefile needs to live in the documents directory and all figures used
-# in any manuals must be .PNG files and live in the individual book's figures
-# directory as well as in the figures directory for the mega-manual.
-#
-# Note that the figures for the Yocto Project Development Tasks Manual
-# differ depending on the BRANCH being built.
-#
-# The Makefile has these targets:
-#    all:       If you leave off the target then "all" is implied.
-#               You will generate HTML and a tarball of files.
-#
-#    pdf:	generates a PDF version of a manual.  Not valid for the
-#		Quick Start or the mega-manual (single, large HTML file
-#		comprised of all Yocto Project manuals).
-#    html:	generates an HTML version of a manual.
-#    tarball:	creates a tarball for the doc files.
-#    validate:	validates
-#    publish:	pushes generated files to the Yocto Project website
-#    clean:	removes files
-#
-# The Makefile can generate an HTML and PDF version of every document except the
-# Yocto Project Quick Start and the single, HTML mega-manual, which is comprised
-# of all the individual Yocto Project manuals.  You can generate these two manuals
-# in HTML form only.  The variable DOC indicates the folder name for a given manual.
-# The variable VER represents the distro version of the Yocto Release for which the
-# manuals are being generated.  The variable BRANCH is used to indicate the
-# branch (edison or denzil) and is used only when DOC=dev-manual or
-# DOC=mega-manual.  If you do not specify a BRANCH, the default branch used
-# will be for the latest Yocto Project release.  If you build for either
-# edison or denzil, you must use BRANCH. You do not need to use BRANCH for
-# any release beyond denzil.
-#
-# To build a manual, you must invoke Makefile with the DOC argument.  If you
-# are going to publish the manual, then you must invoke Makefile with both the
-# DOC and the VER argument.  Furthermore, if you are building or publishing
-# the edison or denzil versions of the Yocto Project Development Tasks Manual or
-# the mega-manual, you must also use the BRANCH argument.
-#
-# Examples:
-#
-#     make DOC=bsp-guide
-#     make html DOC=brief-yoctoprojectqs
-#     make pdf DOC=ref-manual
-#     make DOC=dev-manual BRANCH=edison
-#     make DOC=mega-manual BRANCH=denzil
-#
-# The first example generates the HTML version of the BSP Guide.
-# The second example generates the HTML version only of the Quick Start.  Note
-# that the Quick Start only has an HTML version available.  So, the
-# 'make DOC=brief-yoctoprojectqs' command would be equivalent. The third example
-# generates just the PDF version of the Yocto Project Reference Manual.
-# The fourth example generates the HTML 'edison' version of the YP Development
-# Tasks Manual.  The last example
-# generates the HTML version of the mega-manual and uses the 'denzil'
-# branch when choosing figures for the tarball of figures.  Any example that does
-# not use the BRANCH argument builds the current version of the manual set.
-#
-# The publish target pushes the generated manuals to the Yocto Project
-# website.  Unless you are a developer on the YP team, you will not succeed in
-# pushing manuals to this server.  All files needed for the manual's HTML form are
-# pushed.
-#
-# Examples:
-#
-#    make publish DOC=bsp-guide VER=1.7
-#    make publish DOC=adt-manual VER=1.6
-#    make publish DOC=dev-manual VER=1.1.1 BRANCH=edison
-#    make publish DOC=dev-manual VER=1.2 BRANCH=denzil
-#
-# The first example publishes the 1.7 version of both the PDF and HTML versions of
-# the BSP Guide.  The second example publishes the 1.6 version of both the PDF and
-# HTML versions of the ADT Manual. The third example publishes the 1.1.1 version of
-# the PDF and HTML YP Development Tasks Manual for the 'edison' branch.  The fourth
-# example publishes the 1.2 version of the PDF and HTML YP Development Tasks Manual
-# for the 'denzil' branch.
-#
-# IN MEMORIAM: This comment is to remember Scott Rifenbark (scottrif), whom we lost
-# in January, 2020. Scott was the primary technical writer for the Yocto Project for
-# over 9 years. In that time, he contributed many thousands of patches, built this
-# documentation tree, and enabled tens of thousands of developers to succeed with
-# embedded Linux. He ran this Makefile many thousands of times. Godspeed, Dude.
 
-ifeq ($(DOC),brief-yoctoprojectqs)
-XSLTOPTS = --stringparam html.stylesheet brief-yoctoprojectqs-style.css \
-           --stringparam  chapter.autolabel 0 \
-           --stringparam  section.autolabel 0 \
-           --stringparam  section.label.includes.component.label 0 \
-           --xinclude
-ALLPREQ = html tarball
-TARFILES = brief-yoctoprojectqs-style.css brief-yoctoprojectqs.html figures/bypqs-title.png \
-           figures/yocto-project-transp.png
-MANUALS = $(DOC)/$(DOC).html
-FIGURES = figures
-STYLESHEET = $(DOC)/*.css
+# You can set these variables from the command line, and also
+# from the environment for the first two.
+SPHINXOPTS    ?=
+SPHINXBUILD   ?= sphinx-build
+SOURCEDIR     = .
+BUILDDIR      = _build
+DESTDIR       = final
 
+ifeq ($(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi),0)
+$(error "The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed")
 endif
 
-ifeq ($(DOC),overview-manual)
-XSLTOPTS = --xinclude
-ALLPREQ = html tarball
-TARFILES = overview-manual-style.css overview-manual.html figures/overview-manual-title.png \
-           figures/git-workflow.png figures/source-repos.png figures/index-downloads.png \
-           figures/yp-download.png figures/YP-flow-diagram.png figures/key-dev-elements.png \
-           figures/poky-reference-distribution.png figures/cross-development-toolchains.png \
-           figures/user-configuration.png figures/layer-input.png figures/source-input.png \
-           figures/package-feeds.png figures/patching.png figures/source-fetching.png \
-           figures/configuration-compile-autoreconf.png figures/analysis-for-package-splitting.png \
-           figures/image-generation.png figures/sdk-generation.png figures/images.png \
-           figures/sdk.png
-MANUALS = $(DOC)/$(DOC).html
-FIGURES = figures
-STYLESHEET = $(DOC)/*.css
+# Put it first so that "make" without argument is like "make help".
+help:
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
 
-endif
+.PHONY: help Makefile clean publish
 
-ifeq ($(DOC),bsp-guide)
-XSLTOPTS = --xinclude
-ALLPREQ = html tarball
-TARFILES = bsp-style.css bsp-guide.html figures/bsp-title.png \
-           figures/bsp-dev-flow.png
-MANUALS = $(DOC)/$(DOC).html
-FIGURES = figures
-STYLESHEET = $(DOC)/*.css
-
-endif
-
-ifeq ($(DOC),dev-manual)
-XSLTOPTS = --xinclude
-ALLPREQ = html tarball
-#
-# Note that the tarfile might produce the "Cannot stat: No such file or
-# directory" error message for .PNG files that are not present when building
-# a particular branch.  The list of files is all-inclusive for all branches.
-# Note, if you don't provide a BRANCH option, it defaults to the latest stuff.
-# This would be appropriate for "master" branch.
-#
-
-TARFILES = dev-style.css dev-manual.html figures/buildhistory-web.png \
-           figures/dev-title.png figures/buildhistory.png \
-           figures/recipe-workflow.png figures/bitbake-build-flow.png \
-           figures/multiconfig_files.png figures/cute-files-npm-example.png
-
-MANUALS = $(DOC)/$(DOC).html
-FIGURES = figures
-STYLESHEET = $(DOC)/*.css
-
-endif
-
-ifeq ($(DOC),mega-manual)
-XSLTOPTS = --stringparam html.stylesheet mega-style.css \
-           --stringparam  chapter.autolabel 1 \
-           --stringparam  section.autolabel 1 \
-           --stringparam  section.label.includes.component.label 1 \
-           --xinclude
-ALLPREQ = html tarball
-
-TARFILES = mega-manual.html mega-style.css \
-        figures/YP-flow-diagram.png \
-	figures/using-a-pre-built-image.png \
-	figures/poky-title.png figures/buildhistory.png \
-        figures/buildhistory-web.png \
-	figures/sdk-title.png figures/bsp-title.png \
-	figures/kernel-dev-title.png figures/kernel-architecture-overview.png \
-	figures/bsp-dev-flow.png \
-        figures/dev-title.png \
-	figures/git-workflow.png figures/index-downloads.png \
-        figures/kernel-dev-flow.png \
-	figures/kernel-overview-2-generic.png \
-	figures/source-repos.png figures/yp-download.png \
-        figures/profile-title.png figures/kernelshark-all.png \
-        figures/kernelshark-choose-events.png \
-        figures/kernelshark-i915-display.png \
-        figures/kernelshark-output-display.png \
-        figures/oprofileui-busybox.png figures/oprofileui-copy-to-user.png \
-        figures/oprofileui-downloading.png figures/oprofileui-processes.png \
-        figures/perf-probe-do_fork-profile.png \
-        figures/perf-report-cycles-u.png \
-        figures/perf-systemwide.png figures/perf-systemwide-libc.png \
-        figures/perf-wget-busybox-annotate-menu.png \
-        figures/perf-wget-busybox-annotate-udhcpc.png \
-        figures/perf-wget-busybox-debuginfo.png \
-        figures/perf-wget-busybox-dso-zoom.png \
-        figures/perf-wget-busybox-dso-zoom-menu.png \
-        figures/perf-wget-busybox-expanded-stripped.png \
-        figures/perf-wget-flat-stripped.png \
-        figures/perf-wget-g-copy-from-user-expanded-stripped.png \
-        figures/perf-wget-g-copy-to-user-expanded-debuginfo.png \
-        figures/perf-wget-g-copy-to-user-expanded-stripped.png \
-        figures/perf-wget-g-copy-to-user-expanded-stripped-unresolved-hidden.png \
-        figures/pybootchartgui-linux-yocto.png \
-        figures/pychart-linux-yocto-rpm.png \
-        figures/pychart-linux-yocto-rpm-nostrip.png \
-        figures/sched-wakeup-profile.png figures/sysprof-callers.png \
-        figures/sysprof-copy-from-user.png figures/sysprof-copy-to-user.png \
-        figures/cross-development-toolchains.png \
-	figures/user-configuration.png \
-        figures/source-input.png figures/package-feeds.png \
-        figures/layer-input.png figures/images.png figures/sdk.png \
-	figures/source-fetching.png figures/patching.png \
-        figures/configuration-compile-autoreconf.png \
-	figures/analysis-for-package-splitting.png \
-        figures/image-generation.png figures/key-dev-elements.png\
-	figures/sdk-generation.png figures/recipe-workflow.png \
-	figures/build-workspace-directory.png figures/mega-title.png \
-	figures/toaster-title.png figures/hosted-service.png figures/multiconfig_files.png \
-	figures/simple-configuration.png figures/poky-reference-distribution.png \
-	figures/compatible-layers.png figures/import-layer.png figures/new-project.png \
-	figures/sdk-environment.png figures/sdk-installed-standard-sdk-directory.png \
-	figures/sdk-devtool-add-flow.png figures/sdk-installed-extensible-sdk-directory.png \
-	figures/sdk-devtool-modify-flow.png \
-	figures/sdk-devtool-upgrade-flow.png figures/bitbake-build-flow.png figures/bypqs-title.png \
-	figures/overview-manual-title.png figures/sdk-autotools-flow.png figures/sdk-makefile-flow.png \
-	figures/bb_multiconfig_files.png figures/bitbake-title.png figures/cute-files-npm-example.png
-
-MANUALS = $(DOC)/$(DOC).html
-FIGURES = figures
-STYLESHEET = $(DOC)/*.css
-
-endif
-
-ifeq ($(DOC),ref-manual)
-XSLTOPTS = --xinclude
-ALLPREQ = html tarball
-TARFILES = ref-manual.html ref-style.css figures/poky-title.png \
-	figures/build-workspace-directory.png
-MANUALS = $(DOC)/$(DOC).html
-FIGURES = figures
-STYLESHEET = $(DOC)/*.css
-endif
-
-ifeq ($(DOC),sdk-manual)
-XSLTOPTS = --xinclude
-ALLPREQ = html tarball
-TARFILES = sdk-manual.html sdk-style.css figures/sdk-title.png \
-           figures/sdk-environment.png figures/sdk-installed-standard-sdk-directory.png \
-	   figures/sdk-installed-extensible-sdk-directory.png figures/sdk-devtool-add-flow.png \
-	   figures/sdk-devtool-modify-flow.png \
-	   figures/sdk-devtool-upgrade-flow.png figures/sdk-autotools-flow.png figures/sdk-makefile-flow.png
-MANUALS = $(DOC)/$(DOC).html
-FIGURES = figures
-STYLESHEET = $(DOC)/*.css
-endif
-
-ifeq ($(DOC),profile-manual)
-XSLTOPTS = --xinclude
-ALLPREQ = html tarball
-TARFILES = profile-manual.html profile-manual-style.css \
-           figures/profile-title.png figures/kernelshark-all.png \
-           figures/kernelshark-choose-events.png \
-           figures/kernelshark-i915-display.png \
-           figures/kernelshark-output-display.png \
-           figures/oprofileui-busybox.png figures/oprofileui-copy-to-user.png \
-           figures/oprofileui-downloading.png figures/oprofileui-processes.png \
-           figures/perf-probe-do_fork-profile.png \
-           figures/perf-report-cycles-u.png \
-           figures/perf-systemwide.png figures/perf-systemwide-libc.png \
-           figures/perf-wget-busybox-annotate-menu.png \
-           figures/perf-wget-busybox-annotate-udhcpc.png \
-           figures/perf-wget-busybox-debuginfo.png \
-           figures/perf-wget-busybox-dso-zoom.png \
-           figures/perf-wget-busybox-dso-zoom-menu.png \
-           figures/perf-wget-busybox-expanded-stripped.png \
-           figures/perf-wget-flat-stripped.png \
-           figures/perf-wget-g-copy-from-user-expanded-stripped.png \
-           figures/perf-wget-g-copy-to-user-expanded-debuginfo.png \
-           figures/perf-wget-g-copy-to-user-expanded-stripped.png \
-           figures/perf-wget-g-copy-to-user-expanded-stripped-unresolved-hidden.png \
-           figures/pybootchartgui-linux-yocto.png \
-           figures/pychart-linux-yocto-rpm.png \
-           figures/pychart-linux-yocto-rpm-nostrip.png \
-           figures/sched-wakeup-profile.png figures/sysprof-callers.png \
-           figures/sysprof-copy-from-user.png figures/sysprof-copy-to-user.png
-MANUALS = $(DOC)/$(DOC).html
-FIGURES = figures
-STYLESHEET = $(DOC)/*.css
-endif
-
-ifeq ($(DOC),kernel-dev)
-XSLTOPTS = --xinclude
-ALLPREQ = html tarball
-TARFILES = kernel-dev.html kernel-dev-style.css \
-           figures/kernel-dev-title.png figures/kernel-overview-2-generic.png \
-           figures/kernel-architecture-overview.png figures/kernel-dev-flow.png
-MANUALS = $(DOC)/$(DOC).html
-FIGURES = figures
-STYLESHEET = $(DOC)/*.css
-endif
-
-ifeq ($(DOC),toaster-manual)
-XSLTOPTS = --xinclude
-ALLPREQ = html tarball
-TARFILES = toaster-manual.html toaster-manual-style.css \
-	   figures/toaster-title.png figures/simple-configuration.png \
-	   figures/hosted-service.png \
-	   figures/compatible-layers.png figures/import-layer.png figures/new-project.png
-MANUALS = $(DOC)/$(DOC).html
-FIGURES = figures
-STYLESHEET = $(DOC)/*.css
-endif
-
-
-ifeq ($(DOC),test-manual)
-XSLTOPTS = --xinclude
-ALLPREQ = html tarball
-TARFILES = test-manual.html test-manual-style.css \
-	   figures/test-manual-title.png figures/ab-test-cluster.png
-MANUALS = $(DOC)/$(DOC).html
-FIGURES = figures
-STYLESHEET = $(DOC)/*.css
-endif
-
-##
-# These URI should be rewritten by your distribution's xml catalog to
-# match your locally installed XSL stylesheets.
-XSL_BASE_URI  = http://docbook.sourceforge.net/release/xsl/1.76.1
-XSL_XHTML_URI = $(XSL_BASE_URI)/xhtml/docbook.xsl
-
-all: $(ALLPREQ)
-
-pdf:
-ifeq ($(DOC),brief-yoctoprojectqs)
-	@echo " "
-	@echo "ERROR: You cannot generate a PDF file for brief-yoctoprojectqs."
-	@echo " "
-
-else ifeq ($(DOC),mega-manual)
-	@echo " "
-	@echo "ERROR: You cannot generate a mega-manual PDF file."
-	@echo " "
-
-else
-
-	cd $(DOC); ../tools/poky-docbook-to-pdf $(DOC).xml ../template; cd ..
-endif
-
-html:
-ifeq ($(DOC),mega-manual)
-#       See http://www.sagehill.net/docbookxsl/HtmlOutput.html
-	@echo " "
-	@echo "******** Building "$(DOC)
-	@echo " "
-	cd $(DOC); xsltproc $(XSLTOPTS) -o $(DOC).html $(DOC)-customization.xsl $(DOC).xml; cd ..
-	@echo " "
-	@echo "******** Using mega-manual.sed to process external links"
-	@echo " "
-	cd $(DOC); sed -f ../tools/mega-manual.sed < mega-manual.html > mega-output.html; cd ..
-	@echo " "
-	@echo "******** Cleaning up transient file mega-output.html"
-	@echo " "
-	cd $(DOC); rm mega-manual.html; mv mega-output.html mega-manual.html; cd ..
-else
-#       See http://www.sagehill.net/docbookxsl/HtmlOutput.html
-	@echo " "
-	@echo "******** Building "$(DOC)
-	@echo " "
-	cd $(DOC); xsltproc $(XSLTOPTS) -o $(DOC).html $(DOC)-customization.xsl $(DOC).xml; cd ..
-endif
-
-
-tarball: html
-	@echo " "
-	@echo "******** Creating Tarball of document files"
-	@echo " "
-	cd $(DOC); tar -cvzf $(DOC).tgz $(TARFILES); cd ..
-
-validate:
-	cd $(DOC); xmllint --postvalid --xinclude --noout $(DOC).xml; cd ..
-
-
-publish:
-	@if test -f $(DOC)/$(DOC).html; \
-	  then \
-            echo " "; \
-            echo "******** Publishing "$(DOC)".html"; \
-            echo " "; \
-            scp -r $(MANUALS) $(STYLESHEET) www.yoctoproject.org:/var/www/www.yoctoproject.org-docs/$(VER)/$(DOC); \
-            cd $(DOC); scp -r $(FIGURES) www.yoctoproject.org:/var/www/www.yoctoproject.org-docs/$(VER)/$(DOC); \
-	else \
-          echo " "; \
-          echo $(DOC)".html missing.  Generate the file first then try again."; \
-          echo " "; \
-	fi
+publish: Makefile html singlehtml
+	rm -rf $(BUILDDIR)/$(DESTDIR)/
+	mkdir -p $(BUILDDIR)/$(DESTDIR)/
+	cp -r $(BUILDDIR)/html/* $(BUILDDIR)/$(DESTDIR)/
+	cp $(BUILDDIR)/singlehtml/index.html $(BUILDDIR)/$(DESTDIR)/singleindex.html
+	sed -i -e 's@index.html#@singleindex.html#@g' $(BUILDDIR)/$(DESTDIR)/singleindex.html
 
 clean:
-	rm -rf $(MANUALS); rm $(DOC)/$(DOC).tgz;
+	@rm -rf $(BUILDDIR)
+
+# Catch-all target: route all unknown targets to Sphinx using the new
+# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
+%: Makefile
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
diff --git a/poky/documentation/Makefile.sphinx b/poky/documentation/Makefile.sphinx
deleted file mode 100644
index c951855..0000000
--- a/poky/documentation/Makefile.sphinx
+++ /dev/null
@@ -1,35 +0,0 @@
-# Minimal makefile for Sphinx documentation
-#
-
-# You can set these variables from the command line, and also
-# from the environment for the first two.
-SPHINXOPTS    ?=
-SPHINXBUILD   ?= sphinx-build
-SOURCEDIR     = .
-BUILDDIR      = _build
-DESTDIR       = final
-
-ifeq ($(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi),0)
-$(error "The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed")
-endif
-
-# Put it first so that "make" without argument is like "make help".
-help:
-	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
-
-.PHONY: help Makefile.sphinx clean publish
-
-publish: Makefile.sphinx html singlehtml
-	rm -rf $(BUILDDIR)/$(DESTDIR)/
-	mkdir -p $(BUILDDIR)/$(DESTDIR)/
-	cp -r $(BUILDDIR)/html/* $(BUILDDIR)/$(DESTDIR)/
-	cp $(BUILDDIR)/singlehtml/index.html $(BUILDDIR)/$(DESTDIR)/singleindex.html
-	sed -i -e 's@index.html#@singleindex.html#@g' $(BUILDDIR)/$(DESTDIR)/singleindex.html
-
-clean:
-	@rm -rf $(BUILDDIR)
-
-# Catch-all target: route all unknown targets to Sphinx using the new
-# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
-%: Makefile.sphinx
-	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
diff --git a/poky/documentation/README b/poky/documentation/README
index fce3cfe..fe86876 100644
--- a/poky/documentation/README
+++ b/poky/documentation/README
@@ -121,7 +121,7 @@
 To build the documentation locally, run:
 
  $ cd documentation
- $ make -f Makefile.sphinx html
+ $ make html
 
 The resulting HTML index page will be _build/html/index.html, and you
 can browse your own copy of the locally generated documentation with
diff --git a/poky/documentation/adt-manual/adt-command.rst b/poky/documentation/adt-manual/adt-command.rst
index de85477..d348adf 100644
--- a/poky/documentation/adt-manual/adt-command.rst
+++ b/poky/documentation/adt-manual/adt-command.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 **********************
 Using the Command Line
diff --git a/poky/documentation/adt-manual/adt-command.xml b/poky/documentation/adt-manual/adt-command.xml
deleted file mode 100644
index b88c0ac..0000000
--- a/poky/documentation/adt-manual/adt-command.xml
+++ /dev/null
@@ -1,266 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='using-the-command-line'>
-<title>Using the Command Line</title>
-
-    <para>
-        Recall that earlier the manual discussed how to use an existing toolchain
-        tarball that had been installed into the default installation
-        directory, <filename>/opt/poky/&DISTRO;</filename>, which is outside of the
-        <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>
-        (see the section "<link linkend='using-an-existing-toolchain-tarball'>Using a Cross-Toolchain Tarball)</link>".
-        And, that sourcing your architecture-specific environment setup script
-        initializes a suitable cross-toolchain development environment.
-    </para>
-
-    <para>
-        During this setup, locations for the compiler, QEMU scripts, QEMU binary,
-        a special version of <filename>pkgconfig</filename> and other useful
-        utilities are added to the <filename>PATH</filename> variable.
-        Also, variables to assist
-        <filename>pkgconfig</filename> and <filename>autotools</filename>
-        are also defined so that, for example, <filename>configure.sh</filename>
-        can find pre-generated test results for tests that need target hardware
-        on which to run.
-        You can see the
-        "<link linkend='setting-up-the-cross-development-environment'>Setting Up the Cross-Development Environment</link>"
-        section for the list of cross-toolchain environment variables
-        established by the script.
-    </para>
-
-    <para>
-        Collectively, these conditions allow you to easily use the toolchain
-        outside of the OpenEmbedded build environment on both Autotools-based
-        projects and Makefile-based projects.
-        This chapter provides information for both these types of projects.
-    </para>
-
-
-<section id='autotools-based-projects'>
-<title>Autotools-Based Projects</title>
-
-    <para>
-        Once you have a suitable cross-toolchain installed, it is very easy to
-        develop a project outside of the OpenEmbedded build system.
-        This section presents a simple "Helloworld" example that shows how
-        to set up, compile, and run the project.
-    </para>
-
-    <section id='creating-and-running-a-project-based-on-gnu-autotools'>
-        <title>Creating and Running a Project Based on GNU Autotools</title>
-
-        <para>
-            Follow these steps to create a simple Autotools-based project:
-            <orderedlist>
-                <listitem><para><emphasis>Create your directory:</emphasis>
-                    Create a clean directory for your project and then make
-                    that directory your working location:
-                    <literallayout class='monospaced'>
-     $ mkdir $HOME/helloworld
-     $ cd $HOME/helloworld
-                    </literallayout></para></listitem>
-                <listitem><para><emphasis>Populate the directory:</emphasis>
-                    Create <filename>hello.c</filename>, <filename>Makefile.am</filename>,
-                    and <filename>configure.in</filename> files as follows:
-                    <itemizedlist>
-                        <listitem><para>For <filename>hello.c</filename>, include
-                            these lines:
-                            <literallayout class='monospaced'>
-     #include &lt;stdio.h&gt;
-
-     main()
-        {
-           printf("Hello World!\n");
-        }
-                            </literallayout></para></listitem>
-                        <listitem><para>For <filename>Makefile.am</filename>,
-                            include these lines:
-                            <literallayout class='monospaced'>
-     bin_PROGRAMS = hello
-     hello_SOURCES = hello.c
-                            </literallayout></para></listitem>
-                        <listitem><para>For <filename>configure.in</filename>,
-                            include these lines:
-                            <literallayout class='monospaced'>
-     AC_INIT(hello.c)
-     AM_INIT_AUTOMAKE(hello,0.1)
-     AC_PROG_CC
-     AC_PROG_INSTALL
-     AC_OUTPUT(Makefile)
-                            </literallayout></para></listitem>
-                    </itemizedlist></para></listitem>
-                <listitem><para><emphasis>Source the cross-toolchain
-                    environment setup file:</emphasis>
-                    Installation of the cross-toolchain creates a cross-toolchain
-                    environment setup script in the directory that the ADT
-                    was installed.
-                    Before you can use the tools to develop your project, you must
-                    source this setup script.
-                    The script begins with the string "environment-setup" and contains
-                    the machine architecture, which is followed by the string
-                    "poky-linux".
-                    Here is an example that sources a script from the
-                    default ADT installation directory that uses the
-                    32-bit Intel x86 Architecture and the
-                    &DISTRO_NAME; Yocto Project release:
-                    <literallayout class='monospaced'>
-     $ source /opt/poky/&DISTRO;/environment-setup-i586-poky-linux
-                    </literallayout></para></listitem>
-                <listitem><para><emphasis>Generate the local aclocal.m4
-                    files and create the configure script:</emphasis>
-                    The following GNU Autotools generate the local
-                    <filename>aclocal.m4</filename> files and create the
-                    configure script:
-                    <literallayout class='monospaced'>
-     $ aclocal
-     $ autoconf
-                    </literallayout></para></listitem>
-                <listitem><para><emphasis>Generate files needed by GNU
-                    coding standards:</emphasis>
-                    GNU coding standards require certain files in order for the
-                    project to be compliant.
-                    This command creates those files:
-                    <literallayout class='monospaced'>
-     $ touch NEWS README AUTHORS ChangeLog
-                    </literallayout></para></listitem>
-                <listitem><para><emphasis>Generate the configure
-                    file:</emphasis>
-                    This command generates the <filename>configure</filename>:
-                    <literallayout class='monospaced'>
-     $ automake -a
-                    </literallayout></para></listitem>
-                <listitem><para><emphasis>Cross-compile the project:</emphasis>
-                    This command compiles the project using the cross-compiler.
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-CONFIGURE_FLAGS'><filename>CONFIGURE_FLAGS</filename></ulink>
-                    environment variable provides the minimal arguments for
-                    GNU configure:
-                    <literallayout class='monospaced'>
-     $ ./configure ${CONFIGURE_FLAGS}
-                    </literallayout></para></listitem>
-                <listitem><para><emphasis>Make and install the project:</emphasis>
-                    These two commands generate and install the project into the
-                    destination directory:
-                    <literallayout class='monospaced'>
-     $ make
-     $ make install DESTDIR=./tmp
-                    </literallayout></para></listitem>
-                <listitem><para><emphasis>Verify the installation:</emphasis>
-                    This command is a simple way to verify the installation
-                    of your project.
-                    Running the command prints the architecture on which
-                    the binary file can run.
-                    This architecture should be the same architecture that
-                    the installed cross-toolchain supports.
-                    <literallayout class='monospaced'>
-     $ file ./tmp/usr/local/bin/hello
-                    </literallayout></para></listitem>
-                <listitem><para><emphasis>Execute your project:</emphasis>
-                    To execute the project in the shell, simply enter the name.
-                    You could also copy the binary to the actual target hardware
-                    and run the project there as well:
-                    <literallayout class='monospaced'>
-     $ ./hello
-                    </literallayout>
-                    As expected, the project displays the "Hello World!" message.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id='passing-host-options'>
-        <title>Passing Host Options</title>
-
-        <para>
-            For an Autotools-based project, you can use the cross-toolchain by just
-            passing the appropriate host option to <filename>configure.sh</filename>.
-            The host option you use is derived from the name of the environment setup
-            script found in the directory in which you installed the cross-toolchain.
-            For example, the host option for an ARM-based target that uses the GNU EABI
-            is <filename>armv5te-poky-linux-gnueabi</filename>.
-            You will notice that the name of the script is
-            <filename>environment-setup-armv5te-poky-linux-gnueabi</filename>.
-            Thus, the following command works to update your project and
-            rebuild it using the appropriate cross-toolchain tools:
-            <literallayout class='monospaced'>
-     $ ./configure --host=armv5te-poky-linux-gnueabi \
-        --with-libtool-sysroot=<replaceable>sysroot_dir</replaceable>
-            </literallayout>
-            <note>
-                If the <filename>configure</filename> script results in problems recognizing the
-                <filename>--with-libtool-sysroot=</filename><replaceable>sysroot-dir</replaceable> option,
-                regenerate the script to enable the support by doing the following and then
-                run the script again:
-                <literallayout class='monospaced'>
-     $ libtoolize --automake
-     $ aclocal -I ${OECORE_NATIVE_SYSROOT}/usr/share/aclocal \
-        [-I <replaceable>dir_containing_your_project-specific_m4_macros</replaceable>]
-     $ autoconf
-     $ autoheader
-     $ automake -a
-                </literallayout>
-            </note>
-        </para>
-    </section>
-</section>
-
-<section id='makefile-based-projects'>
-<title>Makefile-Based Projects</title>
-
-    <para>
-        For Makefile-based projects, the cross-toolchain environment variables
-        established by running the cross-toolchain environment setup script
-        are subject to general <filename>make</filename> rules.
-    </para>
-
-    <para>
-        To illustrate this, consider the following four cross-toolchain
-        environment variables:
-        <literallayout class='monospaced'>
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-CC'>CC</ulink>=i586-poky-linux-gcc -m32 -march=i586 --sysroot=/opt/poky/1.8/sysroots/i586-poky-linux
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-LD'>LD</ulink>=i586-poky-linux-ld --sysroot=/opt/poky/1.8/sysroots/i586-poky-linux
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-CFLAGS'>CFLAGS</ulink>=-O2 -pipe -g -feliminate-unused-debug-types
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-CXXFLAGS'>CXXFLAGS</ulink>=-O2 -pipe -g -feliminate-unused-debug-types
-        </literallayout>
-        Now, consider the following three cases:
-        <itemizedlist>
-            <listitem><para><emphasis>Case 1 - No Variables Set in the <filename>Makefile</filename>:</emphasis>
-                Because these variables are not specifically set in the
-                <filename>Makefile</filename>, the variables retain their
-                values based on the environment.
-                </para></listitem>
-            <listitem><para><emphasis>Case 2 - Variables Set in the <filename>Makefile</filename>:</emphasis>
-                Specifically setting variables in the
-                <filename>Makefile</filename> during the build results in the
-                environment settings of the variables being overwritten.
-                </para></listitem>
-            <listitem><para><emphasis>Case 3 - Variables Set when the <filename>Makefile</filename> is Executed from the Command Line:</emphasis>
-                Executing the <filename>Makefile</filename> from the command
-                line results in the variables being overwritten with
-                command-line content regardless of what is being set in the
-                <filename>Makefile</filename>.
-                In this case, environment variables are not considered unless
-                you use the "-e" flag during the build:
-                <literallayout class='monospaced'>
-     $ make -e <replaceable>file</replaceable>
-                </literallayout>
-                If you use this flag, then the environment values of the
-                variables override any variables specifically set in the
-                <filename>Makefile</filename>.
-                </para></listitem>
-        </itemizedlist>
-        <note>
-            For the list of variables set up by the cross-toolchain environment
-            setup script, see the
-            "<link linkend='setting-up-the-cross-development-environment'>Setting Up the Cross-Development Environment</link>"
-            section.
-        </note>
-    </para>
-</section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/adt-manual/adt-intro.rst b/poky/documentation/adt-manual/adt-intro.rst
index 5372f4f..92c1570 100644
--- a/poky/documentation/adt-manual/adt-intro.rst
+++ b/poky/documentation/adt-manual/adt-intro.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *****************************************
 The Application Development Toolkit (ADT)
diff --git a/poky/documentation/adt-manual/adt-intro.xml b/poky/documentation/adt-manual/adt-intro.xml
deleted file mode 100644
index eb75763..0000000
--- a/poky/documentation/adt-manual/adt-intro.xml
+++ /dev/null
@@ -1,181 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='adt-intro'>
-    <title>The Application Development Toolkit (ADT)</title>
-
-    <para>
-        Part of the Yocto Project development solution is an Application Development
-        Toolkit (ADT).
-        The ADT provides you with a custom-built, cross-development
-        platform suited for developing a user-targeted product application.
-    </para>
-
-    <para>
-        Fundamentally, the ADT consists of the following:
-        <itemizedlist>
-            <listitem><para>An architecture-specific cross-toolchain and matching
-                sysroot both built by the
-                <ulink url='&YOCTO_DOCS_DEV_URL;#build-system-term'>OpenEmbedded build system</ulink>.
-                The toolchain and sysroot are based on a
-                <ulink url='&YOCTO_DOCS_DEV_URL;#metadata'>Metadata</ulink>
-                configuration and extensions,
-                which allows you to cross-develop on the host machine for the target hardware.
-                </para></listitem>
-            <listitem><para>The Eclipse IDE Yocto Plug-in.</para></listitem>
-            <listitem><para>The Quick EMUlator (QEMU), which lets you simulate target hardware.
-                </para></listitem>
-            <listitem><para>Various user-space tools that greatly enhance your application
-                development experience.</para></listitem>
-        </itemizedlist>
-    </para>
-
-    <section id='the-cross-development-toolchain'>
-        <title>The Cross-Development Toolchain</title>
-
-        <para>
-            The
-            <ulink url='&YOCTO_DOCS_DEV_URL;#cross-development-toolchain'>Cross-Development Toolchain</ulink>
-            consists of a cross-compiler, cross-linker, and cross-debugger
-            that are used to develop user-space applications for targeted
-            hardware.
-            This toolchain is created either by running the ADT Installer
-            script, a toolchain installer script, or through a
-            <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>
-            that is based on your Metadata configuration or extension for
-            your targeted device.
-            The cross-toolchain works with a matching target sysroot.
-        </para>
-    </section>
-
-    <section id='sysroot'>
-        <title>Sysroot</title>
-
-        <para>
-            The matching target sysroot contains needed headers and libraries for generating
-            binaries that run on the target architecture.
-            The sysroot is based on the target root filesystem image that is built by
-            the OpenEmbedded build system and uses the same Metadata configuration
-            used to build the cross-toolchain.
-        </para>
-    </section>
-
-    <section id='eclipse-overview'>
-        <title>Eclipse Yocto Plug-in</title>
-
-        <para>
-            The Eclipse IDE is a popular development environment and it fully supports
-            development using the Yocto Project.
-            When you install and configure the Eclipse Yocto Project Plug-in into
-            the Eclipse IDE, you maximize your Yocto Project experience.
-            Installing and configuring the Plug-in results in an environment that
-            has extensions specifically designed to let you more easily develop software.
-            These extensions allow for cross-compilation, deployment, and execution of
-            your output into a QEMU emulation session.
-            You can also perform cross-debugging and profiling.
-            The environment also supports a suite of tools that allows you to perform
-            remote profiling, tracing, collection of power data, collection of
-            latency data, and collection of performance data.
-        </para>
-
-        <para>
-            For information about the application development workflow that uses the Eclipse
-            IDE and for a detailed example of how to install and configure the Eclipse
-            Yocto Project Plug-in, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#adt-eclipse'>Working Within Eclipse</ulink>" section
-            of the Yocto Project Development Manual.
-        </para>
-    </section>
-
-    <section id='the-qemu-emulator'>
-        <title>The QEMU Emulator</title>
-
-        <para>
-            The QEMU emulator allows you to simulate your hardware while running your
-            application or image.
-            QEMU is made available a number of ways:
-            <itemizedlist>
-                <listitem><para>
-                    If you use the ADT Installer script to install ADT, you can
-                    specify whether or not to install QEMU.
-                    </para></listitem>
-                <listitem><para>
-                    If you have cloned the <filename>poky</filename> Git
-                    repository to create a
-                    <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>
-                    and you have sourced the environment setup script, QEMU is
-                    installed and automatically available.
-                    </para></listitem>
-                <listitem><para>
-                    If you have downloaded a Yocto Project release and unpacked
-                    it to create a
-                    <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>
-                    and you have sourced the environment setup script, QEMU is
-                    installed and automatically available.
-                    </para></listitem>
-                <listitem><para>
-                    If you have installed the cross-toolchain tarball and you
-                    have sourced the toolchain's setup environment script, QEMU
-                    is also installed and automatically available.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='user-space-tools'>
-        <title>User-Space Tools</title>
-
-        <para>
-            User-space tools are included as part of the Yocto Project.
-            You will find these tools helpful during development.
-            The tools include LatencyTOP, PowerTOP, OProfile, Perf, SystemTap, and Lttng-ust.
-            These tools are common development tools for the Linux platform.
-            <itemizedlist>
-                <listitem><para><emphasis>LatencyTOP:</emphasis> LatencyTOP focuses on latency
-                    that causes skips in audio,
-                    stutters in your desktop experience, or situations that overload your server
-                    even when you have plenty of CPU power left.
-                    </para></listitem>
-                <listitem><para><emphasis>PowerTOP:</emphasis> Helps you determine what
-                    software is using the most power.
-                    You can find out more about PowerTOP at
-                    <ulink url='https://01.org/powertop/'></ulink>.</para></listitem>
-                <listitem><para><emphasis>OProfile:</emphasis> A system-wide profiler for Linux
-                    systems that is capable of profiling all running code at low overhead.
-                    You can find out more about OProfile at
-                    <ulink url='http://oprofile.sourceforge.net/about/'></ulink>.
-                    For examples on how to setup and use this tool, see the
-                    "<ulink url='&YOCTO_DOCS_PROF_URL;#profile-manual-oprofile'>OProfile</ulink>"
-                    section in the Yocto Project Profiling and Tracing Manual.
-                    </para></listitem>
-                <listitem><para><emphasis>Perf:</emphasis> Performance counters for Linux used
-                    to keep track of certain types of hardware and software events.
-                    For more information on these types of counters see
-                    <ulink url='https://perf.wiki.kernel.org/'></ulink>.
-                    For examples on how to setup and use this tool, see the
-                    "<ulink url='&YOCTO_DOCS_PROF_URL;#profile-manual-perf'>perf</ulink>"
-                    section in the Yocto Project Profiling and Tracing Manual.
-                    </para></listitem>
-                <listitem><para><emphasis>SystemTap:</emphasis> A free software infrastructure
-                    that simplifies information gathering about a running Linux system.
-                    This information helps you diagnose performance or functional problems.
-                    SystemTap is not available as a user-space tool through the Eclipse IDE Yocto Plug-in.
-                    See <ulink url='http://sourceware.org/systemtap'></ulink> for more information
-                    on SystemTap.
-                    For examples on how to setup and use this tool, see the
-                    "<ulink url='&YOCTO_DOCS_PROF_URL;#profile-manual-systemtap'>SystemTap</ulink>"
-                    section in the Yocto Project Profiling and Tracing Manual.</para></listitem>
-                <listitem><para><emphasis>Lttng-ust:</emphasis> A User-space Tracer designed to
-                    provide detailed information on user-space activity.
-                    See <ulink url='http://lttng.org/ust'></ulink> for more information on Lttng-ust.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/adt-manual/adt-manual-customization.xsl b/poky/documentation/adt-manual/adt-manual-customization.xsl
deleted file mode 100644
index 551f7e9..0000000
--- a/poky/documentation/adt-manual/adt-manual-customization.xsl
+++ /dev/null
@@ -1,28 +0,0 @@
-<?xml version='1.0'?>
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
-
-  <xsl:import href="http://downloads.yoctoproject.org/mirror/docbook-mirror/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-<!--
-
-  <xsl:import href="../template/1.76.1/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-  <xsl:import href="http://docbook.sourceforge.net/release/xsl/1.76.1/xhtml/docbook.xsl" />
-
--->
-
-  <xsl:include href="../template/permalinks.xsl"/>
-  <xsl:include href="../template/section.title.xsl"/>
-  <xsl:include href="../template/component.title.xsl"/>
-  <xsl:include href="../template/division.title.xsl"/>
-  <xsl:include href="../template/formal.object.heading.xsl"/>
-
-  <xsl:param name="html.stylesheet" select="'adt-style.css'" />
-  <xsl:param name="chapter.autolabel" select="1" />
-  <xsl:param name="appendix.autolabel" select="A" />
-  <xsl:param name="section.autolabel" select="1" />
-  <xsl:param name="section.label.includes.component.label" select="1" />
-  <xsl:param name="generate.id.attributes" select="1" />
-
-</xsl:stylesheet>
diff --git a/poky/documentation/adt-manual/adt-manual-eclipse-customization.xsl b/poky/documentation/adt-manual/adt-manual-eclipse-customization.xsl
deleted file mode 100644
index 3d536d5..0000000
--- a/poky/documentation/adt-manual/adt-manual-eclipse-customization.xsl
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version='1.0'?>
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<xsl:stylesheet
-	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-	xmlns="http://www.w3.org/1999/xhtml"
-	xmlns:fo="http://www.w3.org/1999/XSL/Format"
-	version="1.0">
-
-  <xsl:import href="http://downloads.yoctoproject.org/mirror/docbook-mirror/docbook-xsl-1.76.1/eclipse/eclipse3.xsl" />
-
-<!--
-
-  <xsl:import href="../template/1.76.1/docbook-xsl-1.76.1/eclipse/eclipse3.xsl" />
-
-  <xsl:import
-	  href="http://docbook.sourceforge.net/release/xsl/1.76.1/eclipse/eclipse3.xsl" />
-
--->
-
-  <xsl:param name="chunker.output.indent" select="'yes'"/>
-  <xsl:param name="chunk.quietly" select="1"/>
-  <xsl:param name="chunk.first.sections" select="1"/>
-  <xsl:param name="chunk.section.depth" select="10"/>
-  <xsl:param name="use.id.as.filename" select="1"/>
-  <xsl:param name="ulink.target" select="'_self'" />
-  <xsl:param name="base.dir" select="'html/adt-manual/'"/>
-  <xsl:param name="html.stylesheet" select="'../book.css'"/>
-  <xsl:param name="eclipse.manifest" select="0"/>
-  <xsl:param name="create.plugin.xml" select="0"/>
-  <xsl:param name="suppress.navigation" select="1"/>
-  <xsl:param name="generate.index" select="0"/>
-  <xsl:param name="chapter.autolabel" select="1" />
-  <xsl:param name="appendix.autolabel" select="1" />
-  <xsl:param name="section.autolabel" select="1" />
-  <xsl:param name="section.label.includes.component.label" select="1" />
-</xsl:stylesheet>
diff --git a/poky/documentation/adt-manual/adt-manual-intro.rst b/poky/documentation/adt-manual/adt-manual-intro.rst
index 4e98da1..2c840fd 100644
--- a/poky/documentation/adt-manual/adt-manual-intro.rst
+++ b/poky/documentation/adt-manual/adt-manual-intro.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ************
 Introduction
diff --git a/poky/documentation/adt-manual/adt-manual-intro.xml b/poky/documentation/adt-manual/adt-manual-intro.xml
deleted file mode 100644
index b7a25a5..0000000
--- a/poky/documentation/adt-manual/adt-manual-intro.xml
+++ /dev/null
@@ -1,34 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='adt-manual-intro'>
-<title>Introduction</title>
-
-    <para>
-        Welcome to the Yocto Project Application Developer's Guide.
-        This manual provides information that lets you begin developing applications
-        using the Yocto Project.
-    </para>
-
-    <para>
-        The Yocto Project provides an application development environment based on
-        an Application Development Toolkit (ADT) and the availability of stand-alone
-        cross-development toolchains and other tools.
-        This manual describes the ADT and how you can configure and install it,
-        how to access and use the cross-development toolchains, how to
-        customize the development packages installation,
-        how to use command-line development for both Autotools-based and
-        Makefile-based projects, and an introduction to the
-        <trademark class='trade'>Eclipse</trademark> IDE Yocto Plug-in.
-        <note>
-            The ADT is distribution-neutral and does not require the Yocto
-            Project reference distribution, which is called Poky.
-            This manual, however, uses examples that use the Poky distribution.
-        </note>
-    </para>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/adt-manual/adt-manual.rst b/poky/documentation/adt-manual/adt-manual.rst
index 695230c..b61f59e 100644
--- a/poky/documentation/adt-manual/adt-manual.rst
+++ b/poky/documentation/adt-manual/adt-manual.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ===========================================
 Yocto Project Application Developer's Guide
diff --git a/poky/documentation/adt-manual/adt-manual.xml b/poky/documentation/adt-manual/adt-manual.xml
deleted file mode 100644
index 13202cc..0000000
--- a/poky/documentation/adt-manual/adt-manual.xml
+++ /dev/null
@@ -1,141 +0,0 @@
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<book id='adt-manual' lang='en'
-      xmlns:xi="http://www.w3.org/2003/XInclude"
-      xmlns="http://docbook.org/ns/docbook"
-      >
-    <bookinfo>
-
-        <mediaobject>
-            <imageobject>
-                <imagedata fileref='figures/adt-title.png'
-                    format='SVG'
-                    align='left' scalefit='1' width='100%'/>
-            </imageobject>
-        </mediaobject>
-
-        <title>
-            Yocto Project Application Developer's Guide
-        </title>
-
-        <authorgroup>
-            <author>
-                <firstname>Jessica</firstname> <surname>Zhang</surname>
-                <affiliation>
-                    <orgname>Intel Corporation</orgname>
-                </affiliation>
-                <email>jessica.zhang@intel.com</email>
-            </author>
-        </authorgroup>
-
-        <revhistory>
-            <revision>
-                <revnumber>1.0</revnumber>
-                <date>6 April 2011</date>
-                <revremark>Released with the Yocto Project 1.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.0.1</revnumber>
-                <date>23 May 2011</date>
-                <revremark>Released with the Yocto Project 1.0.1 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.1</revnumber>
-                <date>6 October 2011</date>
-                <revremark>Released with the Yocto Project 1.1 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.2</revnumber>
-                <date>April 2012</date>
-                <revremark>Released with the Yocto Project 1.2 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.3</revnumber>
-                <date>October 2012</date>
-                <revremark>Released with the Yocto Project 1.3 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.4</revnumber>
-                <date>April 2013</date>
-                <revremark>Released with the Yocto Project 1.4 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.5</revnumber>
-                <date>October 2013</date>
-                <revremark>Released with the Yocto Project 1.5 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.5.1</revnumber>
-                <date>January 2014</date>
-                <revremark>Released with the Yocto Project 1.5.1 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.6</revnumber>
-                <date>April 2014</date>
-                <revremark>Released with the Yocto Project 1.6 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.7</revnumber>
-                <date>October 2014</date>
-                <revremark>Released with the Yocto Project 1.7 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.8</revnumber>
-                <date>April 2015</date>
-                <revremark>Released with the Yocto Project 1.8 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.0</revnumber>
-                <date>October 2015</date>
-                <revremark>Released with the Yocto Project 2.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.1</revnumber>
-                <date>Sometime in 2016</date>
-                <revremark>Released with the future Yocto Project 2.1 Release.</revremark>
-            </revision>
-       </revhistory>
-
-    <copyright>
-      <year>&COPYRIGHT_YEAR;</year>
-      <holder>Linux Foundation</holder>
-    </copyright>
-
-    <legalnotice>
-      <para>
-        Permission is granted to copy, distribute and/or modify this document under
-        the terms of the <ulink type="http" url="http://creativecommons.org/licenses/by-sa/2.0/uk/">Creative Commons Attribution-Share Alike 2.0 UK: England &amp; Wales</ulink> as published by Creative Commons.
-      </para>
-      <note>
-          For the latest version of this manual associated with this
-          Yocto Project release, see the
-          <ulink url='&YOCTO_DOCS_ADT_URL;'>Yocto Project Application Developer's Guide</ulink>
-          from the Yocto Project website.
-      </note>
-
-    </legalnotice>
-
-    </bookinfo>
-
-    <xi:include href="adt-manual-intro.xml"/>
-
-    <xi:include href="adt-intro.xml"/>
-
-    <xi:include href="adt-prepare.xml"/>
-
-    <xi:include href="adt-package.xml"/>
-
-    <xi:include href="adt-command.xml"/>
-
-<!--    <index id='index'>
-      <title>Index</title>
-    </index>
--->
-
-</book>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/adt-manual/adt-package.rst b/poky/documentation/adt-manual/adt-package.rst
index 787d406..a722453 100644
--- a/poky/documentation/adt-manual/adt-package.rst
+++ b/poky/documentation/adt-manual/adt-package.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ************************************************************
 Optionally Customizing the Development Packages Installation
diff --git a/poky/documentation/adt-manual/adt-package.xml b/poky/documentation/adt-manual/adt-package.xml
deleted file mode 100644
index eaed044..0000000
--- a/poky/documentation/adt-manual/adt-package.xml
+++ /dev/null
@@ -1,103 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='adt-package'>
-<title>Optionally Customizing the Development Packages Installation</title>
-
-    <para>
-        Because the Yocto Project is suited for embedded Linux development, it is
-        likely that you will need to customize your development packages installation.
-        For example, if you are developing a minimal image, then you might not need
-        certain packages (e.g. graphics support packages).
-        Thus, you would like to be able to remove those packages from your target sysroot.
-    </para>
-
-<section id='package-management-systems'>
-    <title>Package Management Systems</title>
-
-    <para>
-        The OpenEmbedded build system supports the generation of sysroot files using
-        three different Package Management Systems (PMS):
-        <itemizedlist>
-            <listitem><para><emphasis>OPKG:</emphasis> A less well known PMS whose use
-                originated in the OpenEmbedded and OpenWrt embedded Linux projects.
-                This PMS works with files packaged in an <filename>.ipk</filename> format.
-                See <ulink url='http://en.wikipedia.org/wiki/Opkg'></ulink> for more
-                information about OPKG.</para></listitem>
-            <listitem><para><emphasis>RPM:</emphasis> A more widely known PMS intended for GNU/Linux
-                distributions.
-                This PMS works with files packaged in an <filename>.rpm</filename> format.
-                The build system currently installs through this PMS by default.
-                See <ulink url='http://en.wikipedia.org/wiki/RPM_Package_Manager'></ulink>
-                for more information about RPM.</para></listitem>
-            <listitem><para><emphasis>Debian:</emphasis> The PMS for Debian-based systems
-                is built on many PMS tools.
-                The lower-level PMS tool <filename>dpkg</filename> forms the base of the Debian PMS.
-                For information on dpkg see
-                <ulink url='http://en.wikipedia.org/wiki/Dpkg'></ulink>.</para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='configuring-the-pms'>
-    <title>Configuring the PMS</title>
-
-    <para>
-        Whichever PMS you are using, you need to be sure that the
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></ulink>
-        variable in the <filename>conf/local.conf</filename>
-        file is set to reflect that system.
-        The first value you choose for the variable specifies the package file format for the root
-        filesystem at sysroot.
-        Additional values specify additional formats for convenience or testing.
-        See the <filename>conf/local.conf</filename> configuration file for
-        details.
-    </para>
-
-    <note>
-        For build performance information related to the PMS, see the
-        "<ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-package'><filename>package.bbclass</filename></ulink>"
-        section in the Yocto Project Reference Manual.
-    </note>
-
-    <para>
-        As an example, consider a scenario where you are using OPKG and you want to add
-        the <filename>libglade</filename> package to the target sysroot.
-    </para>
-
-    <para>
-        First, you should generate the IPK file for the
-        <filename>libglade</filename> package and add it
-        into a working <filename>opkg</filename> repository.
-        Use these commands:
-        <literallayout class='monospaced'>
-     $ bitbake libglade
-     $ bitbake package-index
-        </literallayout>
-    </para>
-
-    <para>
-        Next, source the cross-toolchain environment setup script found in the
-        <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>.
-        Follow that by setting up the installation destination to point to your
-        sysroot as <replaceable>sysroot_dir</replaceable>.
-        Finally, have an OPKG configuration file <replaceable>conf_file</replaceable>
-        that corresponds to the <filename>opkg</filename> repository you have just created.
-        The following command forms should now work:
-        <literallayout class='monospaced'>
-     $ opkg-cl –f <replaceable>conf_file</replaceable> -o <replaceable>sysroot_dir</replaceable> update
-     $ opkg-cl –f <replaceable>cconf_file</replaceable> -o <replaceable>sysroot_dir</replaceable> \
-        --force-overwrite install libglade
-     $ opkg-cl –f <replaceable>cconf_file</replaceable> -o <replaceable>sysroot_dir</replaceable> \
-        --force-overwrite install libglade-dbg
-     $ opkg-cl –f <replaceable>conf_file&gt; -o </replaceable>sysroot_dir&gt; \
-        --force-overwrite install libglade-dev
-        </literallayout>
-    </para>
-</section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/adt-manual/adt-prepare.rst b/poky/documentation/adt-manual/adt-prepare.rst
index 9b6bd05..5a85cbf 100644
--- a/poky/documentation/adt-manual/adt-prepare.rst
+++ b/poky/documentation/adt-manual/adt-prepare.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *************************************
 Preparing for Application Development
diff --git a/poky/documentation/adt-manual/adt-prepare.xml b/poky/documentation/adt-manual/adt-prepare.xml
deleted file mode 100644
index 2dc9843..0000000
--- a/poky/documentation/adt-manual/adt-prepare.xml
+++ /dev/null
@@ -1,1000 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='adt-prepare'>
-
-<title>Preparing for Application Development</title>
-
-<para>
-    In order to develop applications, you need set up your host development system.
-    Several ways exist that allow you to install cross-development tools, QEMU, the
-    Eclipse Yocto Plug-in, and other tools.
-    This chapter describes how to prepare for application development.
-</para>
-
-<section id='installing-the-adt'>
-    <title>Installing the ADT and Toolchains</title>
-
-    <para>
-        The following list describes installation methods that set up varying
-        degrees of tool availability on your system.
-        Regardless of the installation method you choose,
-        you must <filename>source</filename> the cross-toolchain
-        environment setup script, which establishes several key
-        environment variables, before you use a toolchain.
-        See the
-        "<link linkend='setting-up-the-cross-development-environment'>Setting Up the Cross-Development Environment</link>"
-        section for more information.
-    </para>
-
-    <note>
-        <para>
-            Avoid mixing installation methods when installing toolchains for
-            different architectures.
-            For example, avoid using the ADT Installer to install some
-            toolchains and then hand-installing cross-development toolchains
-            by running the toolchain installer for different architectures.
-            Mixing installation methods can result in situations where the
-            ADT Installer becomes unreliable and might not install the
-            toolchain.
-        </para>
-
-        <para>
-            If you must mix installation methods, you might avoid problems by
-            deleting <filename>/var/lib/opkg</filename>, thus purging the
-            <filename>opkg</filename> package metadata.
-        </para>
-    </note>
-
-    <para>
-        <itemizedlist>
-            <listitem><para><emphasis>Use the ADT installer script:</emphasis>
-                This method is the recommended way to install the ADT because it
-                automates much of the process for you.
-                For example, you can configure the installation to install the QEMU emulator
-                and the user-space NFS, specify which root filesystem profiles to download,
-                and define the target sysroot location.</para></listitem>
-            <listitem><para><emphasis>Use an existing toolchain:</emphasis>
-                Using this method, you select and download an architecture-specific
-                toolchain installer and then run the script to hand-install the toolchain.
-                If you use this method, you just get the cross-toolchain and QEMU - you do not
-                get any of the other mentioned benefits had you run the ADT Installer script.</para></listitem>
-            <listitem><para><emphasis>Use the toolchain from within the Build Directory:</emphasis>
-                If you already have a
-                <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>,
-                you can build the cross-toolchain within the directory.
-                However, like the previous method mentioned, you only get the cross-toolchain and QEMU - you
-                do not get any of the other benefits without taking separate steps.</para></listitem>
-        </itemizedlist>
-    </para>
-
-    <section id='using-the-adt-installer'>
-        <title>Using the ADT Installer</title>
-
-        <para>
-            To run the ADT Installer, you need to get the ADT Installer tarball, be sure
-            you have the necessary host development packages that support the ADT Installer,
-            and then run the ADT Installer Script.
-        </para>
-
-        <para>
-            For a list of the host packages needed to support ADT installation and use, see the
-            "ADT Installer Extras" lists in the
-            "<ulink url='&YOCTO_DOCS_REF_URL;#required-packages-for-the-host-development-system'>Required Packages for the Host Development System</ulink>" section
-            of the Yocto Project Reference Manual.
-        </para>
-
-        <section id='getting-the-adt-installer-tarball'>
-            <title>Getting the ADT Installer Tarball</title>
-
-            <para>
-                The ADT Installer is contained in the ADT Installer tarball.
-                You can get the tarball using either of these methods:
-                <itemizedlist>
-                    <listitem><para><emphasis>Download the Tarball:</emphasis>
-                        You can download the tarball from
-                        <ulink url='&YOCTO_ADTINSTALLER_DL_URL;'></ulink> into
-                        any directory.</para></listitem>
-                    <listitem><para><emphasis>Build the Tarball:</emphasis>
-                        You can use
-                        <ulink url='&YOCTO_DOCS_DEV_URL;#bitbake-term'>BitBake</ulink>
-                        to generate the tarball inside an existing
-                        <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>.
-                        </para>
-                        <para>If you use BitBake to generate the ADT Installer
-                        tarball, you must <filename>source</filename> the
-                        environment setup script
-                        (<ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>
-                        or
-                        <ulink url='&YOCTO_DOCS_REF_URL;#structure-memres-core-script'><filename>oe-init-build-env-memres</filename></ulink>)
-                        located in the Source Directory before running the
-                        <filename>bitbake</filename> command that creates the
-                        tarball.</para>
-                        <para>The following example commands establish
-                        the
-                        <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>,
-                        check out the current release branch, set up the
-                        build environment while also creating the default
-                        Build Directory, and run the
-                        <filename>bitbake</filename> command that results in the
-                        tarball
-                        <filename>poky/build/tmp/deploy/sdk/adt_installer.tar.bz2</filename>:
-                        <note>
-                            Before using BitBake to build the ADT tarball, be
-                            sure to make sure your
-                            <filename>local.conf</filename> file is properly
-                            configured.
-                            See the
-                            "<ulink url='&YOCTO_DOCS_REF_URL;#user-configuration'>User Configuration</ulink>"
-                            section in the Yocto Project Reference Manual for
-                            general configuration information.
-                        </note>
-                        <literallayout class='monospaced'>
-     $ cd ~
-     $ git clone git://git.yoctoproject.org/poky
-     $ cd poky
-     $ git checkout -b &DISTRO_NAME; origin/&DISTRO_NAME;
-     $ source &OE_INIT_FILE;
-     $ bitbake adt-installer
-                        </literallayout></para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='configuring-and-running-the-adt-installer-script'>
-            <title>Configuring and Running the ADT Installer Script</title>
-
-            <para>
-                Before running the ADT Installer script, you need to unpack the tarball.
-                You can unpack the tarball in any directory you wish.
-                For example, this command copies the ADT Installer tarball from where
-                it was built into the home directory and then unpacks the tarball into
-                a top-level directory named <filename>adt-installer</filename>:
-                <literallayout class='monospaced'>
-     $ cd ~
-     $ cp poky/build/tmp/deploy/sdk/adt_installer.tar.bz2 $HOME
-     $ tar -xjf adt_installer.tar.bz2
-                </literallayout>
-                Unpacking it creates the directory <filename>adt-installer</filename>,
-                which contains the ADT Installer script (<filename>adt_installer</filename>)
-                and its configuration file (<filename>adt_installer.conf</filename>).
-            </para>
-
-            <para>
-                Before you run the script, however, you should examine the ADT Installer configuration
-                file and be sure you are going to get what you want.
-                Your configurations determine which kernel and filesystem image are downloaded.
-            </para>
-
-            <para>
-                The following list describes the configurations you can define for the ADT Installer.
-                For configuration values and restrictions, see the comments in
-                the <filename>adt-installer.conf</filename> file:
-
-                <itemizedlist>
-                    <listitem><para><filename>YOCTOADT_REPO</filename>: This area
-                        includes the IPKG-based packages and the root filesystem upon which
-                        the installation is based.
-                        If you want to set up your own IPKG repository pointed to by
-                        <filename>YOCTOADT_REPO</filename>, you need to be sure that the
-                        directory structure follows the same layout as the reference directory
-                        set up at <ulink url='http://adtrepo.yoctoproject.org'></ulink>.
-                        Also, your repository needs to be accessible through HTTP.</para></listitem>
-                    <listitem><para><filename>YOCTOADT_TARGETS</filename>: The machine
-                        target architectures for which you want to set up cross-development
-                        environments.</para></listitem>
-                    <listitem><para><filename>YOCTOADT_QEMU</filename>: Indicates whether
-                        or not to install the emulator QEMU.</para></listitem>
-                    <listitem><para><filename>YOCTOADT_NFS_UTIL</filename>: Indicates whether
-                        or not to install user-mode NFS.
-                        If you plan to use the Eclipse IDE Yocto plug-in against QEMU,
-                        you should install NFS.
-                        <note>To boot QEMU images using our userspace NFS server, you need
-                            to be running <filename>portmap</filename> or <filename>rpcbind</filename>.
-                            If you are running <filename>rpcbind</filename>, you will also need to add the
-                            <filename>-i</filename> option when <filename>rpcbind</filename> starts up.
-                            Please make sure you understand the security implications of doing this.
-                            You might also have to modify your firewall settings to allow
-                            NFS booting to work.</note></para></listitem>
-                    <listitem><para><filename>YOCTOADT_ROOTFS_</filename><replaceable>arch</replaceable>: The root
-                        filesystem images you want to download from the
-                        <filename>YOCTOADT_IPKG_REPO</filename> repository.</para></listitem>
-                    <listitem><para><filename>YOCTOADT_TARGET_SYSROOT_IMAGE_</filename><replaceable>arch</replaceable>: The
-                        particular root filesystem used to extract and create the target sysroot.
-                        The value of this variable must have been specified with
-                        <filename>YOCTOADT_ROOTFS_</filename><replaceable>arch</replaceable>.
-                        For example, if you downloaded both <filename>minimal</filename> and
-                        <filename>sato-sdk</filename> images by setting
-                        <filename>YOCTOADT_ROOTFS_</filename><replaceable>arch</replaceable>
-                        to "minimal sato-sdk", then <filename>YOCTOADT_ROOTFS_</filename><replaceable>arch</replaceable>
-                        must be set to either "minimal" or "sato-sdk".
-                        </para></listitem>
-                    <listitem><para><filename>YOCTOADT_TARGET_SYSROOT_LOC_</filename><replaceable>arch</replaceable>: The
-                        location on the development host where the target sysroot is created.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                After you have configured the <filename>adt_installer.conf</filename> file,
-                run the installer using the following command:
-                <literallayout class='monospaced'>
-     $ cd adt-installer
-     $ ./adt_installer
-                </literallayout>
-                Once the installer begins to run, you are asked to enter the
-                location for cross-toolchain installation.
-                The default location is
-                <filename>/opt/poky/</filename><replaceable>release</replaceable>.
-                After either accepting the default location or selecting your
-                own location, you are prompted to run the installation script
-                interactively or in silent mode.
-                If you want to closely monitor the installation,
-                choose "I" for interactive mode rather than "S" for silent mode.
-                Follow the prompts from the script to complete the installation.
-            </para>
-
-            <para>
-                Once the installation completes, the ADT, which includes the
-                cross-toolchain, is installed in the selected installation
-                directory.
-                You will notice environment setup files for the cross-toolchain
-                in the installation directory, and image tarballs in the
-                <filename>adt-installer</filename> directory according to your
-                installer configurations, and the target sysroot located
-                according to the
-                <filename>YOCTOADT_TARGET_SYSROOT_LOC_</filename><replaceable>arch</replaceable>
-                variable also in your configuration file.
-            </para>
-         </section>
-    </section>
-
-    <section id='using-an-existing-toolchain-tarball'>
-        <title>Using a Cross-Toolchain Tarball</title>
-
-        <para>
-            If you want to simply install a cross-toolchain by hand, you can
-            do so by running the toolchain installer.
-            The installer includes the pre-built cross-toolchain, the
-            <filename>runqemu</filename> script, and support files.
-            If you use this method to install the cross-toolchain, you
-            might still need to install the target sysroot by installing and
-            extracting it separately.
-            For information on how to install the sysroot, see the
-            "<link linkend='extracting-the-root-filesystem'>Extracting the Root Filesystem</link>" section.
-        </para>
-
-        <para>
-            Follow these steps:
-            <orderedlist>
-                <listitem><para><emphasis>Get your toolchain installer using one of the following methods:</emphasis>
-                    <itemizedlist>
-                        <listitem><para>Go to
-                            <ulink url='&YOCTO_TOOLCHAIN_DL_URL;'></ulink>
-                            and find the folder that matches your host
-                            development system (i.e. <filename>i686</filename>
-                            for 32-bit machines or <filename>x86_64</filename>
-                            for 64-bit machines).</para>
-                            <para>Go into that folder and download the toolchain
-                            installer whose name includes the appropriate target
-                            architecture.
-                            The toolchains provided by the Yocto Project
-                            are based off of the
-                            <filename>core-image-sato</filename> image and
-                            contain libraries appropriate for developing
-                            against that image.
-                            For example, if your host development system is a
-                            64-bit x86 system and you are going to use
-                            your cross-toolchain for a 32-bit x86
-                            target, go into the <filename>x86_64</filename>
-                            folder and download the following installer:
-                            <literallayout class='monospaced'>
-     poky-glibc-x86_64-core-image-sato-i586-toolchain-&DISTRO;.sh
-                            </literallayout></para></listitem>
-                        <listitem><para>Build your own toolchain installer.
-                            For cases where you cannot use an installer
-                            from the download area, you can build your own as
-                            described in the
-                            "<link linkend='optionally-building-a-toolchain-installer'>Optionally Building a Toolchain Installer</link>"
-                            section.</para></listitem>
-                    </itemizedlist></para></listitem>
-                <listitem><para><emphasis>Once you have the installer, run it to install the toolchain:</emphasis>
-                    <note>
-                        You must change the permissions on the toolchain
-                        installer script so that it is executable.
-                    </note></para>
-                    <para>The following command shows how to run the installer
-                    given a toolchain tarball for a 64-bit x86 development host
-                    system and a 32-bit x86 target architecture.
-                    The example assumes the toolchain installer is located
-                    in <filename>~/Downloads/</filename>.
-                    <literallayout class='monospaced'>
-     $ ~/Downloads/poky-glibc-x86_64-core-image-sato-i586-toolchain-&DISTRO;.sh
-                    </literallayout>
-                    The first thing the installer prompts you for is the
-                    directory into which you want to install the toolchain.
-                    The default directory used is
-                    <filename>/opt/poky/&DISTRO;</filename>.
-                    If you do not have write permissions for the directory
-                    into which you are installing the toolchain, the
-                    toolchain installer notifies you and exits.
-                    Be sure you have write permissions in the directory and
-                    run the installer again.</para>
-                    <para>When the script finishes, the cross-toolchain is
-                    installed.
-                    You will notice environment setup files for the
-                    cross-toolchain in the installation directory.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id='using-the-toolchain-from-within-the-build-tree'>
-        <title>Using BitBake and the Build Directory</title>
-
-        <para>
-            A final way of making the cross-toolchain available is to use BitBake
-            to generate the toolchain within an existing
-            <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>.
-            This method does not install the toolchain into the default
-            <filename>/opt</filename> directory.
-            As with the previous method, if you need to install the target sysroot, you must
-            do that separately as well.
-        </para>
-
-        <para>
-            Follow these steps to generate the toolchain into the Build Directory:
-            <orderedlist>
-                <listitem><para><emphasis>Set up the Build Environment:</emphasis>
-                    Source the OpenEmbedded build environment setup
-                    script (i.e.
-                    <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>
-                    or
-                    <ulink url='&YOCTO_DOCS_REF_URL;#structure-memres-core-script'><filename>oe-init-build-env-memres</filename></ulink>)
-                    located in the
-                    <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>.
-                    </para></listitem>
-                <listitem><para><emphasis>Check your Local Configuration File:</emphasis>
-                    At this point, you should be sure that the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink> variable
-                    in the <filename>local.conf</filename> file found in the
-                    <filename>conf</filename> directory of the Build Directory
-                    is set for the target architecture.
-                    Comments within the <filename>local.conf</filename> file
-                    list the values you can use for the
-                    <filename>MACHINE</filename> variable.
-                    If you do not change the <filename>MACHINE</filename>
-                    variable, the OpenEmbedded build system uses
-                    <filename>qemux86</filename> as the default target
-                    machine when building the cross-toolchain.
-                    <note>
-                        You can populate the Build Directory with the
-                        cross-toolchains for more than a single architecture.
-                        You just need to edit the <filename>MACHINE</filename>
-                        variable in the <filename>local.conf</filename> file and
-                        re-run the <filename>bitbake</filename> command.
-                    </note></para></listitem>
-                <listitem><para><emphasis>Make Sure Your Layers are Enabled:</emphasis>
-                    Examine the <filename>conf/bblayers.conf</filename> file
-                    and make sure that you have enabled all the compatible
-                    layers for your target machine.
-                    The OpenEmbedded build system needs to be aware of each
-                    layer you want included when building images and
-                    cross-toolchains.
-                    For information on how to enable a layer, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#enabling-your-layer'>Enabling Your Layer</ulink>"
-                    section in the Yocto Project Development Manual.
-                    </para></listitem>
-                <listitem><para><emphasis>Generate the Cross-Toolchain:</emphasis>
-                    Run <filename>bitbake meta-ide-support</filename> to
-                    complete the cross-toolchain generation.
-                    Once the <filename>bitbake</filename> command finishes,
-                    the cross-toolchain is
-                    generated and populated within the Build Directory.
-                    You will notice environment setup files for the
-                    cross-toolchain that contain the string
-                    "<filename>environment-setup</filename>" in the
-                    Build Directory's <filename>tmp</filename> folder.</para>
-                    <para>Be aware that when you use this method to install the
-                    toolchain, you still need to separately extract and install
-                    the sysroot filesystem.
-                    For information on how to do this, see the
-                    "<link linkend='extracting-the-root-filesystem'>Extracting the Root Filesystem</link>" section.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-</section>
-
-<section id='setting-up-the-cross-development-environment'>
-    <title>Setting Up the Cross-Development Environment</title>
-
-    <para>
-        Before you can develop using the cross-toolchain, you need to set up the
-        cross-development environment by sourcing the toolchain's environment setup script.
-        If you used the ADT Installer or hand-installed cross-toolchain,
-        then you can find this script in the directory you chose for installation.
-        For this release, the default installation directory is
-        <filename>&YOCTO_ADTPATH_DIR;</filename>.
-        If you installed the toolchain in the
-        <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>,
-        you can find the environment setup
-        script for the toolchain in the Build Directory's <filename>tmp</filename> directory.
-    </para>
-
-    <para>
-        Be sure to run the environment setup script that matches the
-        architecture for which you are developing.
-        Environment setup scripts begin with the string
-        "<filename>environment-setup</filename>" and include as part of their
-        name the architecture.
-        For example, the toolchain environment setup script for a 64-bit
-        IA-based architecture installed in the default installation directory
-        would be the following:
-        <literallayout class='monospaced'>
-     &YOCTO_ADTPATH_DIR;/environment-setup-x86_64-poky-linux
-        </literallayout>
-        When you run the setup script, many environment variables are
-        defined:
-        <literallayout class='monospaced'>
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-SDKTARGETSYSROOT'><filename>SDKTARGETSYSROOT</filename></ulink> - The path to the sysroot used for cross-compilation
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-PKG_CONFIG_PATH'><filename>PKG_CONFIG_PATH</filename></ulink> - The path to the target pkg-config files
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-CONFIG_SITE'><filename>CONFIG_SITE</filename></ulink> - A GNU autoconf site file preconfigured for the target
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-CC'><filename>CC</filename></ulink> - The minimal command and arguments to run the C compiler
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-CXX'><filename>CXX</filename></ulink> - The minimal command and arguments to run the C++ compiler
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-CPP'><filename>CPP</filename></ulink> - The minimal command and arguments to run the C preprocessor
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-AS'><filename>AS</filename></ulink> - The minimal command and arguments to run the assembler
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-LD'><filename>LD</filename></ulink> - The minimal command and arguments to run the linker
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-GDB'><filename>GDB</filename></ulink> - The minimal command and arguments to run the GNU Debugger
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-STRIP'><filename>STRIP</filename></ulink> - The minimal command and arguments to run 'strip', which strips symbols
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-RANLIB'><filename>RANLIB</filename></ulink> - The minimal command and arguments to run 'ranlib'
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-OBJCOPY'><filename>OBJCOPY</filename></ulink> - The minimal command and arguments to run 'objcopy'
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-OBJDUMP'><filename>OBJDUMP</filename></ulink> - The minimal command and arguments to run 'objdump'
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-AR'><filename>AR</filename></ulink> - The minimal command and arguments to run 'ar'
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-NM'><filename>NM</filename></ulink> - The minimal command and arguments to run 'nm'
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-TARGET_PREFIX'><filename>TARGET_PREFIX</filename></ulink> - The toolchain binary prefix for the target tools
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-CROSS_COMPILE'><filename>CROSS_COMPILE</filename></ulink> - The toolchain binary prefix for the target tools
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-CONFIGURE_FLAGS'><filename>CONFIGURE_FLAGS</filename></ulink> - The minimal arguments for GNU configure
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-CFLAGS'><filename>CFLAGS</filename></ulink> - Suggested C flags
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-CXXFLAGS'><filename>CXXFLAGS</filename></ulink> - Suggested C++ flags
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-LDFLAGS'><filename>LDFLAGS</filename></ulink> - Suggested linker flags when you use CC to link
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-CPPFLAGS'><filename>CPPFLAGS</filename></ulink> - Suggested preprocessor flags
-        </literallayout>
-    </para>
-</section>
-
-<section id='securing-kernel-and-filesystem-images'>
-    <title>Securing Kernel and Filesystem Images</title>
-
-    <para>
-        You will need to have a kernel and filesystem image to boot using your
-        hardware or the QEMU emulator.
-        Furthermore, if you plan on booting your image using NFS or you want to use the root filesystem
-        as the target sysroot, you need to extract the root filesystem.
-    </para>
-
-    <section id='getting-the-images'>
-        <title>Getting the Images</title>
-
-        <para>
-            To get the kernel and filesystem images, you either have to build them or download
-            pre-built versions.
-            For an example of how to build these images, see the
-            "<ulink url='&YOCTO_DOCS_QS_URL;#qs-buiding-images'>Buiding Images</ulink>"
-            section of the Yocto Project Quick Start.
-            For an example of downloading pre-build versions, see the
-            "<link linkend='using-pre-built'>Example Using Pre-Built Binaries and QEMU</link>"
-            section.
-        </para>
-
-        <para>
-            The Yocto Project ships basic kernel and filesystem images for several
-            architectures (<filename>x86</filename>, <filename>x86-64</filename>,
-            <filename>mips</filename>, <filename>powerpc</filename>, and <filename>arm</filename>)
-            that you can use unaltered in the QEMU emulator.
-            These kernel images reside in the release
-            area - <ulink url='&YOCTO_MACHINES_DL_URL;'></ulink>
-            and are ideal for experimentation using Yocto Project.
-            For information on the image types you can build using the OpenEmbedded build system,
-            see the
-            "<ulink url='&YOCTO_DOCS_REF_URL;#ref-images'>Images</ulink>"
-            chapter in the Yocto Project Reference Manual.
-        </para>
-
-        <para>
-            If you are planning on developing against your image and you are not
-            building or using one of the Yocto Project development images
-            (e.g. <filename>core-image-*-dev</filename>), you must be sure to
-            include the development packages as part of your image recipe.
-        </para>
-
-        <para>
-            If you plan on remotely deploying and debugging your
-            application from within the Eclipse IDE, you must have an image
-            that contains the Yocto Target Communication Framework (TCF) agent
-            (<filename>tcf-agent</filename>).
-            You can do this by including the <filename>eclipse-debug</filename>
-            image feature.
-            <note>
-                See the
-                "<ulink url='&YOCTO_DOCS_REF_URL;#ref-features-image'>Image Features</ulink>"
-                section in the Yocto Project Reference Manual for information on
-                image features.
-            </note>
-            To include the <filename>eclipse-debug</filename> image feature,
-            modify your <filename>local.conf</filename> file in the
-            <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>
-            so that the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_IMAGE_FEATURES'><filename>EXTRA_IMAGE_FEATURES</filename></ulink>
-            variable includes the "eclipse-debug" feature.
-            After modifying the configuration file, you can rebuild the image.
-            Once the image is rebuilt, the <filename>tcf-agent</filename>
-            will be included in the image and is launched automatically after
-            the boot.
-        </para>
-    </section>
-
-    <section id='extracting-the-root-filesystem'>
-        <title>Extracting the Root Filesystem</title>
-
-        <para>
-            If you install your toolchain by hand or build it using BitBake and
-            you need a root filesystem, you need to extract it separately.
-            If you use the ADT Installer to install the ADT, the root
-            filesystem is automatically extracted and installed.
-        </para>
-
-        <para>
-            Here are some cases where you need to extract the root filesystem:
-            <itemizedlist>
-                <listitem><para>You want to boot the image using NFS.
-                    </para></listitem>
-                <listitem><para>You want to use the root filesystem as the
-                    target sysroot.
-                    For example, the Eclipse IDE environment with the Eclipse
-                    Yocto Plug-in installed allows you to use QEMU to boot
-                    under NFS.</para></listitem>
-                <listitem><para>You want to develop your target application
-                    using the root filesystem as the target sysroot.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            To extract the root filesystem, first <filename>source</filename>
-            the cross-development environment setup script to establish
-            necessary environment variables.
-            If you built the toolchain in the Build Directory, you will find
-            the toolchain environment script in the
-            <filename>tmp</filename> directory.
-            If you installed the toolchain by hand, the environment setup
-            script is located in <filename>/opt/poky/&DISTRO;</filename>.
-        </para>
-
-        <para>
-            After sourcing the environment script, use the
-            <filename>runqemu-extract-sdk</filename> command and provide the
-            filesystem image.
-        </para>
-
-        <para>
-            Following is an example.
-            The second command sets up the environment.
-            In this case, the setup script is located in the
-            <filename>/opt/poky/&DISTRO;</filename> directory.
-            The third command extracts the root filesystem from a previously
-            built filesystem that is located in the
-            <filename>~/Downloads</filename> directory.
-            Furthermore, this command extracts the root filesystem into the
-            <filename>qemux86-sato</filename> directory:
-            <literallayout class='monospaced'>
-     $ cd ~
-     $ source /opt/poky/&DISTRO;/environment-setup-i586-poky-linux
-     $ runqemu-extract-sdk \
-        ~/Downloads/core-image-sato-sdk-qemux86-2011091411831.rootfs.tar.bz2 \
-        $HOME/qemux86-sato
-            </literallayout>
-            You could now point to the target sysroot at
-            <filename>qemux86-sato</filename>.
-        </para>
-    </section>
-</section>
-
-<section id='optionally-building-a-toolchain-installer'>
-    <title>Optionally Building a Toolchain Installer</title>
-
-    <para>
-        As an alternative to locating and downloading a toolchain installer,
-        you can build the toolchain installer if you have a
-        <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>.
-        <note>
-            Although not the preferred method, it is also possible to use
-            <filename>bitbake meta-toolchain</filename> to build the toolchain
-            installer.
-            If you do use this method, you must separately install and extract
-            the target sysroot.
-            For information on how to install the sysroot, see the
-            "<link linkend='extracting-the-root-filesystem'>Extracting the Root Filesystem</link>"
-            section.
-        </note>
-    </para>
-
-    <para>
-        To build the toolchain installer and populate the SDK image, use the
-        following command:
-        <literallayout class='monospaced'>
-     $ bitbake <replaceable>image</replaceable> -c populate_sdk
-        </literallayout>
-        The command results in a toolchain installer that contains the sysroot
-        that matches your target root filesystem.
-    </para>
-
-    <para>
-        Another powerful feature is that the toolchain is completely
-        self-contained.
-        The binaries are linked against their own copy of
-        <filename>libc</filename>, which results in no dependencies
-        on the target system.
-        To achieve this, the pointer to the dynamic loader is
-        configured at install time since that path cannot be dynamically
-        altered.
-        This is the reason for a wrapper around the
-        <filename>populate_sdk</filename> archive.
-    </para>
-
-    <para>
-        Another feature is that only one set of cross-canadian toolchain
-        binaries are produced per architecture.
-        This feature takes advantage of the fact that the target hardware can
-        be passed to <filename>gcc</filename> as a set of compiler options.
-        Those options are set up by the environment script and contained in
-        variables such as
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-CC'><filename>CC</filename></ulink>
-        and
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-LD'><filename>LD</filename></ulink>.
-        This reduces the space needed for the tools.
-        Understand, however, that a sysroot is still needed for every target
-        since those binaries are target-specific.
-    </para>
-
-    <para>
-         Remember, before using any BitBake command, you
-         must source the build environment setup script
-         (i.e.
-         <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>
-         or
-         <ulink url='&YOCTO_DOCS_REF_URL;#structure-memres-core-script'><filename>oe-init-build-env-memres</filename></ulink>)
-         located in the Source Directory and you must make sure your
-         <filename>conf/local.conf</filename> variables are correct.
-         In particular, you need to be sure the
-         <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
-         variable matches the architecture for which you are building and that
-         the
-         <ulink url='&YOCTO_DOCS_REF_URL;#var-SDKMACHINE'><filename>SDKMACHINE</filename></ulink>
-         variable is correctly set if you are building a toolchain designed to
-         run on an architecture that differs from your current development host
-         machine (i.e. the build machine).
-    </para>
-
-    <para>
-        When the <filename>bitbake</filename> command completes, the toolchain
-        installer will be in
-        <filename>tmp/deploy/sdk</filename> in the Build Directory.
-        <note>
-            By default, this toolchain does not build static binaries.
-            If you want to use the toolchain to build these types of libraries,
-            you need to be sure your image has the appropriate static
-            development libraries.
-            Use the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_INSTALL'><filename>IMAGE_INSTALL</filename></ulink>
-            variable inside your <filename>local.conf</filename> file to
-            install the appropriate library packages.
-            Following is an example using <filename>glibc</filename> static
-            development libraries:
-            <literallayout class='monospaced'>
-     IMAGE_INSTALL_append = " glibc-staticdev"
-            </literallayout>
-        </note>
-    </para>
-</section>
-
-<section id='optionally-using-an-external-toolchain'>
-    <title>Optionally Using an External Toolchain</title>
-
-    <para>
-        You might want to use an external toolchain as part of your
-        development.
-        If this is the case, the fundamental steps you need to accomplish
-        are as follows:
-        <itemizedlist>
-            <listitem><para>
-                Understand where the installed toolchain resides.
-                For cases where you need to build the external toolchain, you
-                would need to take separate steps to build and install the
-                toolchain.
-                </para></listitem>
-            <listitem><para>
-                Make sure you add the layer that contains the toolchain to
-                your <filename>bblayers.conf</filename> file through the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-BBLAYERS'><filename>BBLAYERS</filename></ulink>
-                variable.
-                </para></listitem>
-            <listitem><para>
-                Set the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTERNAL_TOOLCHAIN'><filename>EXTERNAL_TOOLCHAIN</filename></ulink>
-                variable in your <filename>local.conf</filename> file
-                to the location in which you installed the toolchain.
-                </para></listitem>
-        </itemizedlist>
-        A good example of an external toolchain used with the Yocto Project
-        is <trademark class='registered'>Mentor Graphics</trademark>
-        Sourcery G++ Toolchain.
-        You can see information on how to use that particular layer in the
-        <filename>README</filename> file at
-        <ulink url='http://github.com/MentorEmbedded/meta-sourcery/'></ulink>.
-        You can find further information by reading about the
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-TCMODE'><filename>TCMODE</filename></ulink>
-        variable in the Yocto Project Reference Manual's variable glossary.
-    </para>
-</section>
-
-    <section id='using-pre-built'>
-        <title>Example Using Pre-Built Binaries and QEMU</title>
-
-        <para>
-            If hardware, libraries and services are stable, you can get started by using a pre-built binary
-            of the filesystem image, kernel, and toolchain and run it using the QEMU emulator.
-            This scenario is useful for developing application software.
-        </para>
-
-        <mediaobject>
-            <imageobject>
-            <imagedata fileref="figures/using-a-pre-built-image.png" format="PNG" align='center' scalefit='1'/>
-            </imageobject>
-            <caption>
-                <para>Using a Pre-Built Image</para>
-            </caption>
-        </mediaobject>
-
-        <para>
-            For this scenario, you need to do several things:
-        </para>
-
-        <itemizedlist>
-            <listitem><para>Install the appropriate stand-alone toolchain tarball.</para></listitem>
-            <listitem><para>Download the pre-built image that will boot with QEMU.
-                You need to be sure to get the QEMU image that matches your target machine's
-                architecture (e.g. x86, ARM, etc.).</para></listitem>
-            <listitem><para>Download the filesystem image for your target machine's architecture.
-                </para></listitem>
-            <listitem><para>Set up the environment to emulate the hardware and then start the QEMU emulator.
-                </para></listitem>
-        </itemizedlist>
-
-        <section id='installing-the-toolchain'>
-            <title>Installing the Toolchain</title>
-
-            <para>
-                You can download a tarball installer, which includes the
-                pre-built toolchain, the <filename>runqemu</filename>
-                script, and support files from the appropriate directory under
-                <ulink url='&YOCTO_TOOLCHAIN_DL_URL;'></ulink>.
-                Toolchains are available for 32-bit and 64-bit x86 development
-                systems from the <filename>i686</filename> and
-                <filename>x86_64</filename> directories, respectively.
-                The toolchains the Yocto Project provides are based off the
-                <filename>core-image-sato</filename> image and contain
-                libraries appropriate for developing against that image.
-                Each type of development system supports five or more target
-                architectures.
-            </para>
-
-            <para>
-                The names of the tarball installer scripts are such that a
-                string representing the host system appears first in the
-                filename and then is immediately followed by a string
-                representing the target architecture.
-            </para>
-
-            <literallayout class='monospaced'>
-     poky-glibc-<replaceable>host_system</replaceable>-<replaceable>image_type</replaceable>-<replaceable>arch</replaceable>-toolchain-<replaceable>release_version</replaceable>.sh
-
-     Where:
-         <replaceable>host_system</replaceable> is a string representing your development system:
-
-                    i686 or x86_64.
-
-         <replaceable>image_type</replaceable> is a string representing the image you wish to
-                develop a Software Development Toolkit (SDK) for use against.
-                The Yocto Project builds toolchain installers using the
-                following BitBake command:
-
-                    bitbake core-image-sato -c populate_sdk
-
-         <replaceable>arch</replaceable> is a string representing the tuned target architecture:
-
-                    i586, x86_64, powerpc, mips, armv7a or armv5te
-
-         <replaceable>release_version</replaceable> is a string representing the release number of the
-                Yocto Project:
-
-                    &DISTRO;, &DISTRO;+snapshot
-            </literallayout>
-
-            <para>
-                For example, the following toolchain installer is for a 64-bit
-                development host system and a i586-tuned target architecture
-                based off the SDK for <filename>core-image-sato</filename>:
-                <literallayout class='monospaced'>
-     poky-glibc-x86_64-core-image-sato-i586-toolchain-&DISTRO;.sh
-                </literallayout>
-            </para>
-
-            <para>
-                Toolchains are self-contained and by default are installed into
-                <filename>/opt/poky</filename>.
-                However, when you run the toolchain installer, you can choose an
-                installation directory.
-            </para>
-
-            <para>
-                The following command shows how to run the installer given a toolchain tarball
-                for a 64-bit x86 development host system and a 32-bit x86 target architecture.
-                You must change the permissions on the toolchain
-                installer script so that it is executable.
-            </para>
-
-            <para>
-                The example assumes the toolchain installer is located in <filename>~/Downloads/</filename>.
-                <note>
-                    If you do not have write permissions for the directory into which you are installing
-                    the toolchain, the toolchain installer notifies you and exits.
-                    Be sure you have write permissions in the directory and run the installer again.
-                </note>
-            </para>
-
-            <para>
-                <literallayout class='monospaced'>
-     $ ~/Downloads/poky-glibc-x86_64-core-image-sato-i586-toolchain-&DISTRO;.sh
-                </literallayout>
-            </para>
-
-            <para>
-                For more information on how to install tarballs, see the
-                "<ulink url='&YOCTO_DOCS_ADT_URL;#using-an-existing-toolchain-tarball'>Using a Cross-Toolchain Tarball</ulink>" and
-                "<ulink url='&YOCTO_DOCS_ADT_URL;#using-the-toolchain-from-within-the-build-tree'>Using BitBake and the Build Directory</ulink>" sections in the Yocto Project Application Developer's Guide.
-            </para>
-        </section>
-
-        <section id='downloading-the-pre-built-linux-kernel'>
-            <title>Downloading the Pre-Built Linux Kernel</title>
-
-            <para>
-                You can download the pre-built Linux kernel suitable for running in the QEMU emulator from
-                <ulink url='&YOCTO_QEMU_DL_URL;'></ulink>.
-                Be sure to use the kernel that matches the architecture you want to simulate.
-                Download areas exist for the five supported machine architectures:
-                <filename>qemuarm</filename>, <filename>qemumips</filename>, <filename>qemuppc</filename>,
-                <filename>qemux86</filename>, and <filename>qemux86-64</filename>.
-            </para>
-
-            <para>
-                Most kernel files have one of the following forms:
-                <literallayout class='monospaced'>
-     *zImage-qemu<replaceable>arch</replaceable>.bin
-     vmlinux-qemu<replaceable>arch</replaceable>.bin
-
-     Where:
-         <replaceable>arch</replaceable> is a string representing the target architecture:
-                x86, x86-64, ppc, mips, or arm.
-                </literallayout>
-            </para>
-
-            <para>
-                You can learn more about downloading a Yocto Project kernel in the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#local-kernel-files'>Yocto Project Kernel</ulink>"
-                bulleted item in the Yocto Project Development Manual.
-            </para>
-        </section>
-
-        <section id='downloading-the-filesystem'>
-            <title>Downloading the Filesystem</title>
-
-            <para>
-                You can also download the filesystem image suitable for your target architecture from
-                <ulink url='&YOCTO_QEMU_DL_URL;'></ulink>.
-                Again, be sure to use the filesystem that matches the architecture you want
-                to simulate.
-            </para>
-
-            <para>
-                The filesystem image has two tarball forms: <filename>ext3</filename> and
-                <filename>tar</filename>.
-                You must use the <filename>ext3</filename> form when booting an image using the
-                QEMU emulator.
-                The <filename>tar</filename> form can be flattened out in your host development system
-                and used for build purposes with the Yocto Project.
-                <literallayout class='monospaced'>
-     core-image-<replaceable>profile</replaceable>-qemu<replaceable>arch</replaceable>.ext3
-     core-image-<replaceable>profile</replaceable>-qemu<replaceable>arch</replaceable>.tar.bz2
-
-     Where:
-         <replaceable>profile</replaceable> is the filesystem image's profile:
-                   lsb, lsb-dev, lsb-sdk, lsb-qt3, minimal, minimal-dev, sato,
-                   sato-dev, or sato-sdk. For information on these types of image
-                   profiles, see the "<ulink url='&YOCTO_DOCS_REF_URL;#ref-images'>Images</ulink>"
-                   chapter in the Yocto Project Reference Manual.
-
-         <replaceable>arch</replaceable> is a string representing the target architecture:
-                x86, x86-64, ppc, mips, or arm.
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='setting-up-the-environment-and-starting-the-qemu-emulator'>
-            <title>Setting Up the Environment and Starting the QEMU Emulator</title>
-
-            <para>
-                Before you start the QEMU emulator, you need to set up the emulation environment.
-                The following command form sets up the emulation environment.
-                <literallayout class='monospaced'>
-     $ source &YOCTO_ADTPATH_DIR;/environment-setup-<replaceable>arch</replaceable>-poky-linux-<replaceable>if</replaceable>
-
-     Where:
-         <replaceable>arch</replaceable> is a string representing the target architecture:
-                i586, x86_64, ppc603e, mips, or armv5te.
-
-         <replaceable>if</replaceable> is a string representing an embedded application binary interface.
-              Not all setup scripts include this string.
-                </literallayout>
-            </para>
-
-            <para>
-                Finally, this command form invokes the QEMU emulator
-                <literallayout class='monospaced'>
-     $ runqemu <replaceable>qemuarch</replaceable> <replaceable>kernel-image</replaceable> <replaceable>filesystem-image</replaceable>
-
-     Where:
-         <replaceable>qemuarch</replaceable> is a string representing the target architecture: qemux86, qemux86-64,
-                    qemuppc, qemumips, or qemuarm.
-
-         <replaceable>kernel-image</replaceable> is the architecture-specific kernel image.
-
-         <replaceable>filesystem-image</replaceable> is the .ext3 filesystem image.
-
-                </literallayout>
-            </para>
-
-            <para>
-                Continuing with the example, the following two commands setup the emulation
-                environment and launch QEMU.
-                This example assumes the root filesystem (<filename>.ext3</filename> file) and
-                the pre-built kernel image file both reside in your home directory.
-                The kernel and filesystem are for a 32-bit target architecture.
-                <literallayout class='monospaced'>
-     $ cd $HOME
-     $ source &YOCTO_ADTPATH_DIR;/environment-setup-i586-poky-linux
-     $ runqemu qemux86 bzImage-qemux86.bin \
-     core-image-sato-qemux86.ext3
-                </literallayout>
-            </para>
-
-            <para>
-                The environment in which QEMU launches varies depending on the filesystem image and on the
-                target architecture.
-                For example, if you source the environment for the ARM target
-                architecture and then boot the minimal QEMU image, the emulator comes up in a new
-                shell in command-line mode.
-                However, if you boot the SDK image, QEMU comes up with a GUI.
-                <note>Booting the PPC image results in QEMU launching in the same shell in
-                command-line mode.</note>
-            </para>
-        </section>
-</section>
-
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
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diff --git a/poky/documentation/adt-manual/adt-style.css b/poky/documentation/adt-manual/adt-style.css
deleted file mode 100644
index 9d6221a..0000000
--- a/poky/documentation/adt-manual/adt-style.css
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diff --git a/poky/documentation/brief-yoctoprojectqs/brief-yoctoprojectqs-customization.xsl b/poky/documentation/brief-yoctoprojectqs/brief-yoctoprojectqs-customization.xsl
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index 012d863..0000000
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index e4e79d9..0000000
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index e74ac53..0000000
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-  <!-- if an element isn't found in this mode, -->
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-  <!-- if an element isn't found in this mode, -->
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-  <!-- if an element isn't found in this mode, -->
-  <!-- try the generic titlepage.mode -->
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-<div xsl:use-attribute-sets="book.titlepage.recto.style">
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-</div>
-</xsl:template>
-
-<xsl:template name="index.titlepage.recto">
-  <div xsl:use-attribute-sets="index.titlepage.recto.style">
-<xsl:call-template name="component.title">
-<xsl:with-param name="node" select="ancestor-or-self::index[1]"/>
-</xsl:call-template></div>
-  <xsl:choose>
-    <xsl:when test="indexinfo/subtitle">
-      <xsl:apply-templates mode="index.titlepage.recto.auto.mode" select="indexinfo/subtitle"/>
-    </xsl:when>
-    <xsl:when test="docinfo/subtitle">
-      <xsl:apply-templates mode="index.titlepage.recto.auto.mode" select="docinfo/subtitle"/>
-    </xsl:when>
-    <xsl:when test="info/subtitle">
-      <xsl:apply-templates mode="index.titlepage.recto.auto.mode" select="info/subtitle"/>
-    </xsl:when>
-    <xsl:when test="subtitle">
-      <xsl:apply-templates mode="index.titlepage.recto.auto.mode" select="subtitle"/>
-    </xsl:when>
-  </xsl:choose>
-
-</xsl:template>
-
-<xsl:template name="index.titlepage.verso">
-</xsl:template>
-
-<xsl:template name="index.titlepage.separator">
-</xsl:template>
-
-<xsl:template name="index.titlepage.before.recto">
-</xsl:template>
-
-<xsl:template name="index.titlepage.before.verso">
-</xsl:template>
-
-<xsl:template name="index.titlepage">
-  <div class="titlepage">
-    <xsl:variable name="recto.content">
-      <xsl:call-template name="index.titlepage.before.recto"/>
-      <xsl:call-template name="index.titlepage.recto"/>
-    </xsl:variable>
-    <xsl:variable name="recto.elements.count">
-      <xsl:choose>
-        <xsl:when test="function-available('exsl:node-set')"><xsl:value-of select="count(exsl:node-set($recto.content)/*)"/></xsl:when>
-        <xsl:when test="contains(system-property('xsl:vendor'), 'Apache Software Foundation')">
-          <!--Xalan quirk--><xsl:value-of select="count(exsl:node-set($recto.content)/*)"/></xsl:when>
-        <xsl:otherwise>1</xsl:otherwise>
-      </xsl:choose>
-    </xsl:variable>
-    <xsl:if test="(normalize-space($recto.content) != '') or ($recto.elements.count &gt; 0)">
-      <div><xsl:copy-of select="$recto.content"/></div>
-    </xsl:if>
-    <xsl:variable name="verso.content">
-      <xsl:call-template name="index.titlepage.before.verso"/>
-      <xsl:call-template name="index.titlepage.verso"/>
-    </xsl:variable>
-    <xsl:variable name="verso.elements.count">
-      <xsl:choose>
-        <xsl:when test="function-available('exsl:node-set')"><xsl:value-of select="count(exsl:node-set($verso.content)/*)"/></xsl:when>
-        <xsl:when test="contains(system-property('xsl:vendor'), 'Apache Software Foundation')">
-          <!--Xalan quirk--><xsl:value-of select="count(exsl:node-set($verso.content)/*)"/></xsl:when>
-        <xsl:otherwise>1</xsl:otherwise>
-      </xsl:choose>
-    </xsl:variable>
-    <xsl:if test="(normalize-space($verso.content) != '') or ($verso.elements.count &gt; 0)">
-      <div><xsl:copy-of select="$verso.content"/></div>
-    </xsl:if>
-    <xsl:call-template name="index.titlepage.separator"/>
-  </div>
-</xsl:template>
-
-<xsl:template match="*" mode="index.titlepage.recto.mode">
-  <!-- if an element isn't found in this mode, -->
-  <!-- try the generic titlepage.mode -->
-  <xsl:apply-templates select="." mode="titlepage.mode"/>
-</xsl:template>
-
-<xsl:template match="*" mode="index.titlepage.verso.mode">
-  <!-- if an element isn't found in this mode, -->
-  <!-- try the generic titlepage.mode -->
-  <xsl:apply-templates select="." mode="titlepage.mode"/>
-</xsl:template>
-
-<xsl:template match="subtitle" mode="index.titlepage.recto.auto.mode">
-<div xsl:use-attribute-sets="index.titlepage.recto.style">
-<xsl:apply-templates select="." mode="index.titlepage.recto.mode"/>
-</div>
-</xsl:template>
-
-<xsl:template name="setindex.titlepage.recto">
-  <div xsl:use-attribute-sets="setindex.titlepage.recto.style">
-<xsl:call-template name="component.title">
-<xsl:with-param name="node" select="ancestor-or-self::setindex[1]"/>
-</xsl:call-template></div>
-  <xsl:choose>
-    <xsl:when test="setindexinfo/subtitle">
-      <xsl:apply-templates mode="setindex.titlepage.recto.auto.mode" select="setindexinfo/subtitle"/>
-    </xsl:when>
-    <xsl:when test="docinfo/subtitle">
-      <xsl:apply-templates mode="setindex.titlepage.recto.auto.mode" select="docinfo/subtitle"/>
-    </xsl:when>
-    <xsl:when test="info/subtitle">
-      <xsl:apply-templates mode="setindex.titlepage.recto.auto.mode" select="info/subtitle"/>
-    </xsl:when>
-    <xsl:when test="subtitle">
-      <xsl:apply-templates mode="setindex.titlepage.recto.auto.mode" select="subtitle"/>
-    </xsl:when>
-  </xsl:choose>
-
-</xsl:template>
-
-<xsl:template name="setindex.titlepage.verso">
-</xsl:template>
-
-<xsl:template name="setindex.titlepage.separator">
-</xsl:template>
-
-<xsl:template name="setindex.titlepage.before.recto">
-</xsl:template>
-
-<xsl:template name="setindex.titlepage.before.verso">
-</xsl:template>
-
-<xsl:template name="setindex.titlepage">
-  <div class="titlepage">
-    <xsl:variable name="recto.content">
-      <xsl:call-template name="setindex.titlepage.before.recto"/>
-      <xsl:call-template name="setindex.titlepage.recto"/>
-    </xsl:variable>
-    <xsl:variable name="recto.elements.count">
-      <xsl:choose>
-        <xsl:when test="function-available('exsl:node-set')"><xsl:value-of select="count(exsl:node-set($recto.content)/*)"/></xsl:when>
-        <xsl:when test="contains(system-property('xsl:vendor'), 'Apache Software Foundation')">
-          <!--Xalan quirk--><xsl:value-of select="count(exsl:node-set($recto.content)/*)"/></xsl:when>
-        <xsl:otherwise>1</xsl:otherwise>
-      </xsl:choose>
-    </xsl:variable>
-    <xsl:if test="(normalize-space($recto.content) != '') or ($recto.elements.count &gt; 0)">
-      <div><xsl:copy-of select="$recto.content"/></div>
-    </xsl:if>
-    <xsl:variable name="verso.content">
-      <xsl:call-template name="setindex.titlepage.before.verso"/>
-      <xsl:call-template name="setindex.titlepage.verso"/>
-    </xsl:variable>
-    <xsl:variable name="verso.elements.count">
-      <xsl:choose>
-        <xsl:when test="function-available('exsl:node-set')"><xsl:value-of select="count(exsl:node-set($verso.content)/*)"/></xsl:when>
-        <xsl:when test="contains(system-property('xsl:vendor'), 'Apache Software Foundation')">
-          <!--Xalan quirk--><xsl:value-of select="count(exsl:node-set($verso.content)/*)"/></xsl:when>
-        <xsl:otherwise>1</xsl:otherwise>
-      </xsl:choose>
-    </xsl:variable>
-    <xsl:if test="(normalize-space($verso.content) != '') or ($verso.elements.count &gt; 0)">
-      <div><xsl:copy-of select="$verso.content"/></div>
-    </xsl:if>
-    <xsl:call-template name="setindex.titlepage.separator"/>
-  </div>
-</xsl:template>
-
-<xsl:template match="*" mode="setindex.titlepage.recto.mode">
-  <!-- if an element isn't found in this mode, -->
-  <!-- try the generic titlepage.mode -->
-  <xsl:apply-templates select="." mode="titlepage.mode"/>
-</xsl:template>
-
-<xsl:template match="*" mode="setindex.titlepage.verso.mode">
-  <!-- if an element isn't found in this mode, -->
-  <!-- try the generic titlepage.mode -->
-  <xsl:apply-templates select="." mode="titlepage.mode"/>
-</xsl:template>
-
-<xsl:template match="subtitle" mode="setindex.titlepage.recto.auto.mode">
-<div xsl:use-attribute-sets="setindex.titlepage.recto.style">
-<xsl:apply-templates select="." mode="setindex.titlepage.recto.mode"/>
-</div>
-</xsl:template>
-
-<xsl:template name="sidebar.titlepage.recto">
-  <xsl:choose>
-    <xsl:when test="sidebarinfo/title">
-      <xsl:apply-templates mode="sidebar.titlepage.recto.auto.mode" select="sidebarinfo/title"/>
-    </xsl:when>
-    <xsl:when test="docinfo/title">
-      <xsl:apply-templates mode="sidebar.titlepage.recto.auto.mode" select="docinfo/title"/>
-    </xsl:when>
-    <xsl:when test="info/title">
-      <xsl:apply-templates mode="sidebar.titlepage.recto.auto.mode" select="info/title"/>
-    </xsl:when>
-    <xsl:when test="title">
-      <xsl:apply-templates mode="sidebar.titlepage.recto.auto.mode" select="title"/>
-    </xsl:when>
-  </xsl:choose>
-
-  <xsl:choose>
-    <xsl:when test="sidebarinfo/subtitle">
-      <xsl:apply-templates mode="sidebar.titlepage.recto.auto.mode" select="sidebarinfo/subtitle"/>
-    </xsl:when>
-    <xsl:when test="docinfo/subtitle">
-      <xsl:apply-templates mode="sidebar.titlepage.recto.auto.mode" select="docinfo/subtitle"/>
-    </xsl:when>
-    <xsl:when test="info/subtitle">
-      <xsl:apply-templates mode="sidebar.titlepage.recto.auto.mode" select="info/subtitle"/>
-    </xsl:when>
-    <xsl:when test="subtitle">
-      <xsl:apply-templates mode="sidebar.titlepage.recto.auto.mode" select="subtitle"/>
-    </xsl:when>
-  </xsl:choose>
-
-</xsl:template>
-
-<xsl:template name="sidebar.titlepage.verso">
-</xsl:template>
-
-<xsl:template name="sidebar.titlepage.separator">
-</xsl:template>
-
-<xsl:template name="sidebar.titlepage.before.recto">
-</xsl:template>
-
-<xsl:template name="sidebar.titlepage.before.verso">
-</xsl:template>
-
-<xsl:template name="sidebar.titlepage">
-  <div class="titlepage">
-    <xsl:variable name="recto.content">
-      <xsl:call-template name="sidebar.titlepage.before.recto"/>
-      <xsl:call-template name="sidebar.titlepage.recto"/>
-    </xsl:variable>
-    <xsl:variable name="recto.elements.count">
-      <xsl:choose>
-        <xsl:when test="function-available('exsl:node-set')"><xsl:value-of select="count(exsl:node-set($recto.content)/*)"/></xsl:when>
-        <xsl:when test="contains(system-property('xsl:vendor'), 'Apache Software Foundation')">
-          <!--Xalan quirk--><xsl:value-of select="count(exsl:node-set($recto.content)/*)"/></xsl:when>
-        <xsl:otherwise>1</xsl:otherwise>
-      </xsl:choose>
-    </xsl:variable>
-    <xsl:if test="(normalize-space($recto.content) != '') or ($recto.elements.count &gt; 0)">
-      <div><xsl:copy-of select="$recto.content"/></div>
-    </xsl:if>
-    <xsl:variable name="verso.content">
-      <xsl:call-template name="sidebar.titlepage.before.verso"/>
-      <xsl:call-template name="sidebar.titlepage.verso"/>
-    </xsl:variable>
-    <xsl:variable name="verso.elements.count">
-      <xsl:choose>
-        <xsl:when test="function-available('exsl:node-set')"><xsl:value-of select="count(exsl:node-set($verso.content)/*)"/></xsl:when>
-        <xsl:when test="contains(system-property('xsl:vendor'), 'Apache Software Foundation')">
-          <!--Xalan quirk--><xsl:value-of select="count(exsl:node-set($verso.content)/*)"/></xsl:when>
-        <xsl:otherwise>1</xsl:otherwise>
-      </xsl:choose>
-    </xsl:variable>
-    <xsl:if test="(normalize-space($verso.content) != '') or ($verso.elements.count &gt; 0)">
-      <div><xsl:copy-of select="$verso.content"/></div>
-    </xsl:if>
-    <xsl:call-template name="sidebar.titlepage.separator"/>
-  </div>
-</xsl:template>
-
-<xsl:template match="*" mode="sidebar.titlepage.recto.mode">
-  <!-- if an element isn't found in this mode, -->
-  <!-- try the generic titlepage.mode -->
-  <xsl:apply-templates select="." mode="titlepage.mode"/>
-</xsl:template>
-
-<xsl:template match="*" mode="sidebar.titlepage.verso.mode">
-  <!-- if an element isn't found in this mode, -->
-  <!-- try the generic titlepage.mode -->
-  <xsl:apply-templates select="." mode="titlepage.mode"/>
-</xsl:template>
-
-<xsl:template match="title" mode="sidebar.titlepage.recto.auto.mode">
-<div xsl:use-attribute-sets="sidebar.titlepage.recto.style">
-<xsl:call-template name="formal.object.heading">
-<xsl:with-param name="object" select="ancestor-or-self::sidebar[1]"/>
-</xsl:call-template>
-</div>
-</xsl:template>
-
-<xsl:template match="subtitle" mode="sidebar.titlepage.recto.auto.mode">
-<div xsl:use-attribute-sets="sidebar.titlepage.recto.style">
-<xsl:apply-templates select="." mode="sidebar.titlepage.recto.mode"/>
-</div>
-</xsl:template>
-
-</xsl:stylesheet>
-
diff --git a/poky/documentation/brief-yoctoprojectqs/brief-yoctoprojectqs.rst b/poky/documentation/brief-yoctoprojectqs/brief-yoctoprojectqs.rst
index 7e24b9e..14a3e17 100644
--- a/poky/documentation/brief-yoctoprojectqs/brief-yoctoprojectqs.rst
+++ b/poky/documentation/brief-yoctoprojectqs/brief-yoctoprojectqs.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 =========================
 Yocto Project Quick Build
diff --git a/poky/documentation/brief-yoctoprojectqs/brief-yoctoprojectqs.xml b/poky/documentation/brief-yoctoprojectqs/brief-yoctoprojectqs.xml
deleted file mode 100644
index 198c7b9..0000000
--- a/poky/documentation/brief-yoctoprojectqs/brief-yoctoprojectqs.xml
+++ /dev/null
@@ -1,577 +0,0 @@
-<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<article id='brief-yocto-project-qs-intro'>
-    <articleinfo>
-        <title>Yocto Project Quick Build</title>
-
-        <copyright>
-            <year>&COPYRIGHT_YEAR;</year>
-            <holder>Linux Foundation</holder>
-        </copyright>
-
-        <legalnotice>
-            <para>
-                Permission is granted to copy, distribute and/or modify this document under
-                the terms of the <ulink type="http" url="http://creativecommons.org/licenses/by-sa/2.0/uk/">Creative Commons Attribution-Share Alike 2.0 UK: England &amp; Wales</ulink> as published by Creative Commons.
-            </para>
-        </legalnotice>
-
-
-        <abstract>
-            <imagedata fileref="figures/yocto-project-transp.png"
-                        width="6in" depth="1in"
-                        align="right" scale="25" />
-        </abstract>
-    </articleinfo>
-
-    <section id='brief-welcome'>
-        <title>Welcome!</title>
-
-        <para>
-            Welcome!
-            This short document steps you through the process for a typical
-            image build using the Yocto Project.
-            The document also introduces how to configure a build for specific
-            hardware.
-            You will use Yocto Project to build a reference embedded OS
-            called Poky.
-            <note><title>Notes</title>
-                <itemizedlist>
-                    <listitem><para>
-                        The examples in this paper assume you are using a
-                        native Linux system running a recent Ubuntu Linux
-                        distribution.
-                        If the machine you want to use Yocto Project on to
-                        build an image
-                        (<ulink url='&YOCTO_DOCS_REF_URL;#hardware-build-system-term'>build host</ulink>)
-                        is not a native Linux system, you can
-                        still perform these steps by using CROss PlatformS
-                        (CROPS) and setting up a Poky container.
-                        See the
-                        <ulink url='&YOCTO_DOCS_DEV_URL;#setting-up-to-use-crops'>Setting Up to Use CROss PlatformS (CROPS)</ulink>"
-                        section in the Yocto Project Development Tasks Manual for more
-                        information.
-                        </para></listitem>
-                    <listitem><para>
-                        You may use Windows Subsystem For Linux v2 to set up a build
-                        host using Windows 10.
-                        <note>
-                          The Yocto Project is not compatible with WSLv1, it is
-                          compatible but not officially supported nor validated
-                          with WSLv2, if you still decide to use WSL please upgrade
-                          to WSLv2.
-                        </note>
-                        See the
-                        <ulink url='&YOCTO_DOCS_DEV_URL;#setting-up-to-use-wsl'>Setting Up to Use Windows Subsystem For Linux</ulink>"
-                        section in the Yocto Project Development Tasks Manual for more
-                        information.
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-        </para>
-
-        <para>
-            If you want more conceptual or background information on the
-            Yocto Project, see the
-            <ulink url='&YOCTO_DOCS_OM_URL;'>Yocto Project Overview and Concepts Manual</ulink>.
-        </para>
-    </section>
-
-    <section id='brief-compatible-distro'>
-        <title>Compatible Linux Distribution</title>
-
-        <para>
-            Make sure your
-            <ulink url='&YOCTO_DOCS_REF_URL;#hardware-build-system-term'>build host</ulink>
-            meets the following requirements:
-            <itemizedlist>
-                <listitem><para>
-                    50 Gbytes of free disk space
-                    </para></listitem>
-                <listitem><para>
-                    Runs a supported Linux distribution (i.e. recent releases of
-                    Fedora, openSUSE, CentOS, Debian, or Ubuntu). For a list of
-                    Linux distributions that support the Yocto Project, see the
-                    "<ulink url='&YOCTO_DOCS_REF_URL;#detailed-supported-distros'>Supported Linux Distributions</ulink>"
-                    section in the Yocto Project Reference Manual.
-                    For detailed information on preparing your build host, see
-                    the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-preparing-the-build-host'>Preparing the Build Host</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    </para></listitem>
-                <listitem><para>
-                    <itemizedlist>
-                        <listitem><para>
-                            Git 1.8.3.1 or greater
-                            </para></listitem>
-                        <listitem><para>
-                            tar 1.28 or greater
-                            </para></listitem>
-                        <listitem><para>
-                            Python 3.5.0 or greater.
-                        </para></listitem>
-                        <listitem><para>
-                            gcc 5.0 or greater.
-                        </para></listitem>
-                    </itemizedlist>
-                    If your build host does not meet any of these three listed
-                    version requirements, you can take steps to prepare the
-                    system so that you can still use the Yocto Project.
-                    See the
-                    "<ulink url='&YOCTO_DOCS_REF_URL;#required-git-tar-python-and-gcc-versions'>Required Git, tar, Python and gcc Versions</ulink>"
-                    section in the Yocto Project Reference Manual for information.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='brief-build-system-packages'>
-        <title>Build Host Packages</title>
-
-        <para>
-            You must install essential host packages on your
-            build host.
-            The following command installs the host packages based on an
-            Ubuntu distribution:
-            <note>
-                For host package requirements on all supported Linux
-                distributions, see the
-                "<ulink url='&YOCTO_DOCS_REF_URL;#required-packages-for-the-build-host'>Required Packages for the Build Host</ulink>"
-                section in the Yocto Project Reference Manual.
-            </note>
-            <literallayout class='monospaced'>
-     $ sudo apt-get install &UBUNTU_HOST_PACKAGES_ESSENTIAL;
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='brief-use-git-to-clone-poky'>
-        <title>Use Git to Clone Poky</title>
-
-        <para>
-            Once you complete the setup instructions for your machine,
-            you need to get a copy of the Poky repository on your build
-            host.
-            Use the following commands to clone the Poky
-            repository.
-            <literallayout class='monospaced'>
-     $ git clone git://git.yoctoproject.org/poky
-     Cloning into 'poky'...
-     remote: Counting objects: 432160, done.
-     remote: Compressing objects: 100% (102056/102056), done.
-     remote: Total 432160 (delta 323116), reused 432037 (delta 323000)
-     Receiving objects: 100% (432160/432160), 153.81 MiB | 8.54 MiB/s, done.
-     Resolving deltas: 100% (323116/323116), done.
-     Checking connectivity... done.
-            </literallayout>
-            Move to the <filename>poky</filename> directory and take a look
-            at the tags:
-            <literallayout class='monospaced'>
-     $ cd poky
-     $ git fetch --tags
-     $ git tag
-     1.1_M1.final
-     1.1_M1.rc1
-     1.1_M1.rc2
-     1.1_M2.final
-     1.1_M2.rc1
-        .
-        .
-        .
-     yocto-2.5
-     yocto-2.5.1
-     yocto-2.5.2
-     yocto-2.6
-     yocto-2.6.1
-     yocto-2.6.2
-     yocto-2.7
-     yocto_1.5_M5.rc8
-            </literallayout>
-            For this example, check out the branch based on the
-            &DISTRO_REL_TAG; release:
-            <literallayout class='monospaced'>
-     $ git checkout tags/&DISTRO_REL_TAG; -b my-&DISTRO_REL_TAG;
-     Switched to a new branch 'my-&DISTRO_REL_TAG;'
-            </literallayout>
-            The previous Git checkout command creates a local branch
-            named my-&DISTRO_REL_TAG;. The files available to you in that
-            branch exactly match the repository's files in the
-            "&DISTRO_NAME_NO_CAP;" development branch at the time of the
-            Yocto Project &DISTRO_REL_TAG; release.
-        </para>
-
-        <para>
-            For more options and information about accessing Yocto
-            Project related repositories, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#locating-yocto-project-source-files'>Locating Yocto Project Source Files</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id='brief-building-your-image'>
-        <title>Building Your Image</title>
-
-        <para>
-            Use the following steps to build your image.
-            The build process creates an entire Linux distribution, including
-            the toolchain, from source.
-            <note>
-                <itemizedlist>
-                    <listitem><para>
-                        If you are working behind a firewall and your build
-                        host is not set up for proxies, you could encounter
-                        problems with the build process when fetching source
-                        code (e.g. fetcher failures or Git failures).
-                        </para></listitem>
-                    <listitem><para>
-                        If you do not know your proxy settings, consult your
-                        local network infrastructure resources and get that
-                        information.
-                        A good starting point could also be to check your
-                        web browser settings.
-                        Finally, you can find more information on the
-                        "<ulink url='https://wiki.yoctoproject.org/wiki/Working_Behind_a_Network_Proxy'>Working Behind a Network Proxy</ulink>"
-                        page of the Yocto Project Wiki.
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-        </para>
-
-        <para>
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Initialize the Build Environment:</emphasis>
-                    From within the <filename>poky</filename> directory, run the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>
-                    environment setup script to define Yocto Project's
-                    build environment on your build host.
-                    <literallayout class='monospaced'>
-     $ cd ~/poky
-     $ source &OE_INIT_FILE;
-     You had no conf/local.conf file. This configuration file has therefore been
-     created for you with some default values. You may wish to edit it to, for
-     example, select a different MACHINE (target hardware). See conf/local.conf
-     for more information as common configuration options are commented.
-
-     You had no conf/bblayers.conf file. This configuration file has therefore been
-     created for you with some default values. To add additional metadata layers
-     into your configuration please add entries to conf/bblayers.conf.
-
-     The Yocto Project has extensive documentation about OE including a reference
-     manual which can be found at:
-         http://yoctoproject.org/documentation
-
-     For more information about OpenEmbedded see their website:
-         http://www.openembedded.org/
-
-
-     ### Shell environment set up for builds. ###
-
-     You can now run 'bitbake &lt;target&gt;'
-
-     Common targets are:
-         core-image-minimal
-         core-image-sato
-         meta-toolchain
-         meta-ide-support
-
-     You can also run generated qemu images with a command like 'runqemu qemux86-64'
-                    </literallayout>
-                    Among other things, the script creates the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>,
-                    which is <filename>build</filename> in this case
-                    and is located in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>.
-                    After the script runs, your current working directory
-                    is set to the Build Directory.
-                    Later, when the build completes, the Build Directory
-                    contains all the files created during the build.
-                    </para></listitem>
-                <listitem><para id='conf-file-step'>
-                    <emphasis>Examine Your Local Configuration File:</emphasis>
-                    When you set up the build environment, a local
-                    configuration file named
-                    <filename>local.conf</filename> becomes available in
-                    a <filename>conf</filename> subdirectory of the
-                    Build Directory.
-                    For this example, the defaults are set to build
-                    for a <filename>qemux86</filename> target, which is
-                    suitable for emulation.
-                    The package manager used is set to the RPM package
-                    manager.
-                    <tip>
-                        You can significantly speed up your build and guard
-                        against fetcher failures by using mirrors.
-                        To use mirrors, add these lines to your
-                        <filename>local.conf</filename> file in the Build
-                        directory:
-                        <literallayout class='monospaced'>
-     SSTATE_MIRRORS = "\
-     file://.* http://sstate.yoctoproject.org/dev/PATH;downloadfilename=PATH \n \
-     file://.* http://sstate.yoctoproject.org/&YOCTO_DOC_VERSION_MINUS_ONE;/PATH;downloadfilename=PATH \n \
-     file://.* http://sstate.yoctoproject.org/&YOCTO_DOC_VERSION;/PATH;downloadfilename=PATH \n \
-     "
-                        </literallayout>
-                        The previous examples showed how to add sstate
-                        paths for Yocto Project &YOCTO_DOC_VERSION_MINUS_ONE;,
-                        &YOCTO_DOC_VERSION;, and a development area.
-                        For a complete index of sstate locations, see
-                        <ulink url='http://sstate.yoctoproject.org/'></ulink>.
-                    </tip>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Start the Build:</emphasis>
-                    Continue with the following command to build an OS image
-                    for the target, which is
-                    <filename>core-image-sato</filename> in this example:
-                    <literallayout class='monospaced'>
-     $ bitbake core-image-sato
-                    </literallayout>
-                    For information on using the
-                    <filename>bitbake</filename> command, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#usingpoky-components-bitbake'>BitBake</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual,
-                    or see the
-                    "<ulink url='&YOCTO_DOCS_BB_URL;#bitbake-user-manual-command'>BitBake Command</ulink>"
-                    section in the BitBake User Manual.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Simulate Your Image Using QEMU:</emphasis>
-                    Once this particular image is built, you can start
-                    QEMU, which is a Quick EMUlator that ships with
-                    the Yocto Project:
-                    <literallayout class='monospaced'>
-     $ runqemu qemux86-64
-                    </literallayout>
-                    If you want to learn more about running QEMU, see the
-                    "<ulink url="&YOCTO_DOCS_DEV_URL;#dev-manual-qemu">Using the Quick EMUlator (QEMU)</ulink>"
-                    chapter in the Yocto Project Development Tasks Manual.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Exit QEMU:</emphasis>
-                    Exit QEMU by either clicking on the shutdown icon or by
-                    typing <filename>Ctrl-C</filename> in the QEMU
-                    transcript window from which you evoked QEMU.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id='customizing-your-build-for-specific-hardware'>
-        <title>Customizing Your Build for Specific Hardware</title>
-
-        <para>
-            So far, all you have done is quickly built an image suitable
-            for emulation only.
-            This section shows you how to customize your build for specific
-            hardware by adding a hardware layer into the Yocto Project
-            development environment.
-        </para>
-
-        <para>
-            In general, layers are repositories that contain related sets of
-            instructions and configurations that tell the Yocto Project what
-            to do.
-            Isolating related metadata into functionally specific layers
-            facilitates modular development and makes it easier to reuse the
-            layer metadata.
-            <note>
-                By convention, layer names start with the string "meta-".
-            </note>
-        </para>
-
-        <para>
-            Follow these steps to add a hardware layer:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Find a Layer:</emphasis>
-                    Lots of hardware layers exist.
-                    The Yocto Project
-                    <ulink url='&YOCTO_GIT_URL;'>Source Repositories</ulink>
-                    has many hardware layers.
-                    This example adds the
-                    <ulink url='https://github.com/kraj/meta-altera'>meta-altera</ulink>
-                    hardware layer.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Clone the Layer</emphasis>
-                    Use Git to make a local copy of the layer on your machine.
-                    You can put the copy in the top level of the copy of the
-                    Poky repository created earlier:
-                    <literallayout class='monospaced'>
-     $ cd ~/poky
-     $ git clone https://github.com/kraj/meta-altera.git
-     Cloning into 'meta-altera'...
-     remote: Counting objects: 25170, done.
-     remote: Compressing objects: 100% (350/350), done.
-     remote: Total 25170 (delta 645), reused 719 (delta 538), pack-reused 24219
-     Receiving objects: 100% (25170/25170), 41.02 MiB | 1.64 MiB/s, done.
-     Resolving deltas: 100% (13385/13385), done.
-     Checking connectivity... done.
-                    </literallayout>
-                    The hardware layer now exists with other layers inside
-                    the Poky reference repository on your build host as
-                    <filename>meta-altera</filename> and contains all the
-                    metadata needed to support hardware from Altera, which
-                    is owned by Intel.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Change the Configuration to Build for a Specific Machine:</emphasis>
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
-                    variable in the <filename>local.conf</filename> file
-                    specifies the machine for the build.
-                    For this example, set the <filename>MACHINE</filename>
-                    variable to "cyclone5".
-                    These configurations are used:
-                    <ulink url='https://github.com/kraj/meta-altera/blob/master/conf/machine/cyclone5.conf'></ulink>.
-                    <note>
-                        See the
-                        "<link linkend='conf-file-step'>Examine Your Local Configuration File</link>"
-                        step earlier for more information on configuring the
-                        build.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Add Your Layer to the Layer Configuration File:</emphasis>
-                    Before you can use a layer during a build, you must add it
-                    to your <filename>bblayers.conf</filename> file, which
-                    is found in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory's</ulink>
-                    <filename>conf</filename> directory.</para>
-
-                    <para>Use the <filename>bitbake-layers add-layer</filename>
-                    command to add the layer to the configuration file:
-                    <literallayout class='monospaced'>
-     $ cd ~/poky/build
-     $ bitbake-layers add-layer ../meta-altera
-     NOTE: Starting bitbake server...
-     Parsing recipes: 100% |##################################################################| Time: 0:00:32
-     Parsing of 918 .bb files complete (0 cached, 918 parsed). 1401 targets, 123 skipped, 0 masked, 0 errors.
-                    </literallayout>
-                    You can find more information on adding layers in the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#adding-a-layer-using-the-bitbake-layers-script'>Adding a Layer Using the <filename>bitbake-layers</filename> Script</ulink>"
-                    section.
-                    </para></listitem>
-            </orderedlist>
-            Completing these steps has added the
-            <filename>meta-altera</filename> layer to your Yocto Project
-            development environment and configured it to build for the
-            "cyclone5" machine.
-            <note>
-                The previous steps are for demonstration purposes only.
-                If you were to attempt to build an image for the
-                "cyclone5" build, you should read the Altera
-                <filename>README</filename>.
-            </note>
-        </para>
-    </section>
-
-    <section id='creating-your-own-general-layer'>
-        <title>Creating Your Own General Layer</title>
-
-        <para>
-            Maybe you have an application or specific set of behaviors you
-            need to isolate.
-            You can create your own general layer using the
-            <filename>bitbake-layers create-layer</filename> command.
-            The tool automates layer creation by setting up a
-            subdirectory with a <filename>layer.conf</filename>
-            configuration file, a <filename>recipes-example</filename>
-            subdirectory that contains an <filename>example.bb</filename>
-            recipe, a licensing file, and a <filename>README</filename>.
-        </para>
-
-        <para>
-            The following commands run the tool to create a layer named
-            <filename>meta-mylayer</filename> in the
-            <filename>poky</filename> directory:
-            <literallayout class='monospaced'>
-     $ cd ~/poky
-     $ bitbake-layers create-layer meta-mylayer
-     NOTE: Starting bitbake server...
-     Add your new layer with 'bitbake-layers add-layer meta-mylayer'
-            </literallayout>
-            For more information on layers and how to create them, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-a-general-layer-using-the-bitbake-layers-script'>Creating a General Layer Using the <filename>bitbake-layers</filename> Script</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id='brief-where-to-go-next'>
-        <title>Where To Go Next</title>
-
-        <para>
-            Now that you have experienced using the Yocto Project, you might
-            be asking yourself "What now?"
-            The Yocto Project has many sources of information including
-            the website, wiki pages, and user manuals:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis>Website:</emphasis>
-                    The
-                    <ulink url='&YOCTO_HOME_URL;'>Yocto Project Website</ulink>
-                    provides background information, the latest builds,
-                    breaking news, full development documentation, and
-                    access to a rich Yocto Project Development Community
-                    into which you can tap.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Developer Screencast:</emphasis>
-                    The
-                    <ulink url='http://vimeo.com/36450321'>Getting Started with the Yocto Project - New Developer Screencast Tutorial</ulink>
-                    provides a 30-minute video created for users unfamiliar
-                    with the Yocto Project but familiar with Linux build
-                    hosts.
-                    While this screencast is somewhat dated, the
-                    introductory and fundamental concepts are useful for
-                    the beginner.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Yocto Project Overview and Concepts Manual:</emphasis>
-                    The
-                    <ulink url='&YOCTO_DOCS_OM_URL;'>Yocto Project Overview and Concepts Manual</ulink>
-                    is a great place to start to learn about the
-                    Yocto Project.
-                    This manual introduces you to the Yocto Project and its
-                    development environment.
-                    The manual also provides conceptual information for
-                    various aspects of the Yocto Project.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Yocto Project Wiki:</emphasis>
-                    The
-                    <ulink url='&YOCTO_WIKI_URL;'>Yocto Project Wiki</ulink>
-                    provides additional information on where to go next
-                    when ramping up with the Yocto Project, release
-                    information, project planning, and QA information.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Yocto Project Mailing Lists:</emphasis>
-                    Related mailing lists provide a forum for discussion,
-                    patch submission and announcements.
-                    Several mailing lists exist and are grouped according
-                    to areas of concern.
-                    See the
-                    "<ulink url='&YOCTO_DOCS_REF_URL;#resources-mailinglist'>Mailing lists</ulink>"
-                    section in the Yocto Project Reference Manual for a
-                    complete list of Yocto Project mailing lists.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Comprehensive List of Links and Other Documentation:</emphasis>
-                    The
-                    "<ulink url='&YOCTO_DOCS_REF_URL;#resources-links-and-related-documentation'>Links and Related Documentation</ulink>"
-                    section in the Yocto Project Reference Manual provides a
-                    comprehensive list of all related links and other
-                    user documentation.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</article>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/bsp-guide/bsp-guide-customization.xsl b/poky/documentation/bsp-guide/bsp-guide-customization.xsl
deleted file mode 100644
index 37fcbcd..0000000
--- a/poky/documentation/bsp-guide/bsp-guide-customization.xsl
+++ /dev/null
@@ -1,29 +0,0 @@
-<?xml version='1.0'?>
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
-
-  <xsl:import href="http://downloads.yoctoproject.org/mirror/docbook-mirror/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-<!--
-
-  <xsl:import href="../template/1.76.1/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-  <xsl:import href="http://docbook.sourceforge.net/release/xsl/1.76.1/xhtml/docbook.xsl" />
-
--->
-
-  <xsl:include href="../template/permalinks.xsl"/>
-  <xsl:include href="../template/section.title.xsl"/>
-  <xsl:include href="../template/component.title.xsl"/>
-  <xsl:include href="../template/division.title.xsl"/>
-  <xsl:include href="../template/formal.object.heading.xsl"/>
-
-  <xsl:param name="html.stylesheet" select="'bsp-style.css'" />
-  <xsl:param name="chapter.autolabel" select="1" />
-  <xsl:param name="appendix.autolabel" select="A" />
-  <xsl:param name="section.autolabel" select="1" />
-  <xsl:param name="section.label.includes.component.label" select="1" />
-  <xsl:param name="generate.id.attributes" select="1" />
-
-</xsl:stylesheet>
diff --git a/poky/documentation/bsp-guide/bsp-guide.rst b/poky/documentation/bsp-guide/bsp-guide.rst
index 435a399..a4394a8 100644
--- a/poky/documentation/bsp-guide/bsp-guide.rst
+++ b/poky/documentation/bsp-guide/bsp-guide.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 =====================================================
 Yocto Project Board Support Package Developer's Guide
diff --git a/poky/documentation/bsp-guide/bsp-guide.xml b/poky/documentation/bsp-guide/bsp-guide.xml
deleted file mode 100755
index 93ba1e7..0000000
--- a/poky/documentation/bsp-guide/bsp-guide.xml
+++ /dev/null
@@ -1,202 +0,0 @@
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<book id='bsp-guide' lang='en'
-      xmlns:xi="http://www.w3.org/2003/XInclude"
-      xmlns="http://docbook.org/ns/docbook"
-      >
-    <bookinfo>
-
-        <mediaobject>
-            <imageobject>
-                <imagedata fileref='figures/bsp-title.png'
-                    format='SVG'
-                    align='center' scalefit='1' width='100%'/>
-            </imageobject>
-        </mediaobject>
-
-        <title>
-            Yocto Project Board Support Package Developer's Guide
-        </title>
-
-        <authorgroup>
-            <author>
-                <affiliation>
-                    <orgname>&ORGNAME;</orgname>
-                </affiliation>
-                <email>&ORGEMAIL;</email>
-            </author>
-        </authorgroup>
-
-        <revhistory>
-            <revision>
-                <revnumber>0.9</revnumber>
-                <date>November 2010</date>
-                <revremark>The initial document released with the Yocto Project 0.9 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.0</revnumber>
-                <date>April 2011</date>
-                <revremark>Released with the Yocto Project 1.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.1</revnumber>
-                <date>October 2011</date>
-                <revremark>Released with the Yocto Project 1.1 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.2</revnumber>
-                <date>April 2012</date>
-                <revremark>Released with the Yocto Project 1.2 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.3</revnumber>
-                <date>October 2012</date>
-                <revremark>Released with the Yocto Project 1.3 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.4</revnumber>
-                <date>April 2013</date>
-                <revremark>Released with the Yocto Project 1.4 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.5</revnumber>
-                <date>October 2013</date>
-                <revremark>Released with the Yocto Project 1.5 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.6</revnumber>
-                <date>April 2014</date>
-                <revremark>Released with the Yocto Project 1.6 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.7</revnumber>
-                <date>October 2014</date>
-                <revremark>Released with the Yocto Project 1.7 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.8</revnumber>
-                <date>April 2015</date>
-                <revremark>Released with the Yocto Project 1.8 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.0</revnumber>
-                <date>October 2015</date>
-                <revremark>Released with the Yocto Project 2.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.1</revnumber>
-                <date>April 2016</date>
-                <revremark>Released with the Yocto Project 2.1 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.2</revnumber>
-                <date>October 2016</date>
-                <revremark>Released with the Yocto Project 2.2 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.3</revnumber>
-                <date>May 2017</date>
-                <revremark>Released with the Yocto Project 2.3 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.4</revnumber>
-                <date>October 2017</date>
-                <revremark>Released with the Yocto Project 2.4 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.5</revnumber>
-                <date>May 2018</date>
-                <revremark>Released with the Yocto Project 2.5 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.6</revnumber>
-                <date>November 2018</date>
-                <revremark>Released with the Yocto Project 2.6 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.7</revnumber>
-                <date>May 2019</date>
-                <revremark>Released with the Yocto Project 2.7 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>3.0</revnumber>
-                <date>October 2019</date>
-                <revremark>Released with the Yocto Project 3.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>3.1</revnumber>
-                <date>&REL_MONTH_YEAR;</date>
-                <revremark>Released with the Yocto Project 3.1 Release.</revremark>
-            </revision>
-        </revhistory>
-
-    <copyright>
-      <year>&COPYRIGHT_YEAR;</year>
-      <holder>Linux Foundation</holder>
-    </copyright>
-
-    <legalnotice>
-      <para>
-        Permission is granted to copy, distribute and/or modify this document under
-        the terms of the <ulink type="http" url="http://creativecommons.org/licenses/by-nc-sa/2.0/uk/">Creative Commons Attribution-Share Alike 2.0 UK: England &amp; Wales</ulink> as published by Creative Commons.
-      </para>
-           <note><title>Manual Notes</title>
-               <itemizedlist>
-                   <listitem><para>
-                       This version of the
-                       <emphasis>Yocto Project Board Support Package (BSP) Developer's Guide</emphasis>
-                       is for the &YOCTO_DOC_VERSION; release of the
-                       Yocto Project.
-                       To be sure you have the latest version of the manual
-                       for this release, go to the
-                       <ulink url='&YOCTO_DOCS_URL;'>Yocto Project documentation page</ulink>
-                       and select the manual from that site.
-                       Manuals from the site are more up-to-date than manuals
-                       derived from the Yocto Project released TAR files.
-                       </para></listitem>
-                   <listitem><para>
-                       If you located this manual through a web search, the
-                       version of the manual might not be the one you want
-                       (e.g. the search might have returned a manual much
-                       older than the Yocto Project version with which you
-                       are working).
-                       You can see all Yocto Project major releases by
-                       visiting the
-                       <ulink url='&YOCTO_WIKI_URL;/wiki/Releases'>Releases</ulink>
-                       page.
-                       If you need a version of this manual for a different
-                       Yocto Project release, visit the
-                       <ulink url='&YOCTO_DOCS_URL;'>Yocto Project documentation page</ulink>
-                       and select the manual set by using the
-                       "ACTIVE RELEASES DOCUMENTATION" or "DOCUMENTS ARCHIVE"
-                       pull-down menus.
-                       </para></listitem>
-                   <listitem>
-                       <para>
-                       To report any inaccuracies or problems with this
-                       (or any other Yocto Project) manual, send an email to
-                       the Yocto Project documentation mailing list at
-                       <filename>docs@lists.yoctoproject.org</filename> or
-                       log into the freenode <filename>#yocto</filename> channel.
-                       </para>
-                   </listitem>
-               </itemizedlist>
-           </note>
-    </legalnotice>
-
-    </bookinfo>
-
-    <xi:include href="bsp.xml"/>
-
-<!--    <index id='index'>
-      <title>Index</title>
-    </index>
--->
-
-</book>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/bsp-guide/bsp-style.css b/poky/documentation/bsp-guide/bsp-style.css
deleted file mode 100644
index 4ccf5d8..0000000
--- a/poky/documentation/bsp-guide/bsp-style.css
+++ /dev/null
@@ -1,989 +0,0 @@
-/*
-   SPDX-License-Identifier: CC-BY-2.0-UK
-
-   Generic XHTML / DocBook XHTML CSS Stylesheet.
-
-   Browser wrangling and typographic design by
-      Oyvind Kolas / pippin@gimp.org
-
-   Customised for Poky by
-      Matthew Allum / mallum@o-hand.com
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-     William Skaggs
-     Jakub Steiner
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diff --git a/poky/documentation/bsp-guide/bsp.rst b/poky/documentation/bsp-guide/bsp.rst
index 024a240..61b2958 100644
--- a/poky/documentation/bsp-guide/bsp.rst
+++ b/poky/documentation/bsp-guide/bsp.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ************************************************
 Board Support Packages (BSP) - Developer's Guide
diff --git a/poky/documentation/bsp-guide/bsp.xml b/poky/documentation/bsp-guide/bsp.xml
deleted file mode 100644
index f5c3f31..0000000
--- a/poky/documentation/bsp-guide/bsp.xml
+++ /dev/null
@@ -1,2259 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='bsp'>
-
-<title>Board Support Packages (BSP) - Developer's Guide</title>
-
-<para>
-    A Board Support Package (BSP) is a collection of information that
-    defines how to support a particular hardware device, set of devices, or
-    hardware platform.
-    The BSP includes information about the hardware features
-    present on the device and kernel configuration information along with any
-    additional hardware drivers required.
-    The BSP also lists any additional software
-    components required in addition to a generic Linux software stack for both
-    essential and optional platform features.
-</para>
-
-<para>
-    This guide presents information about BSP layers, defines a structure for components
-    so that BSPs follow a commonly understood layout, discusses how to customize
-    a recipe for a BSP, addresses BSP licensing, and provides information that
-    shows you how to create a
-    <link linkend='bsp-layers'>BSP Layer</link> using the
-    <link linkend='creating-a-new-bsp-layer-using-the-bitbake-layers-script'><filename>bitbake-layers</filename></link>
-    tool.
-</para>
-
-<section id='bsp-layers'>
-    <title>BSP Layers</title>
-
-    <para>
-        A BSP consists of a file structure inside a base directory.
-        Collectively, you can think of the base directory, its file structure,
-        and the contents as a <firstterm>BSP layer</firstterm>.
-        Although not a strict requirement, BSP layers in the Yocto Project
-        use the following well-established naming convention:
-        <literallayout class='monospaced'>
-     meta-<replaceable>bsp_root_name</replaceable>
-        </literallayout>
-        The string "meta-" is prepended to the machine or platform name, which is
-        <replaceable>bsp_root_name</replaceable> in the above form.
-        <note><title>Tip</title>
-            Because the BSP layer naming convention is well-established,
-            it is advisable to follow it when creating layers.
-            Technically speaking, a BSP layer name does not need to
-            start with <filename>meta-</filename>.
-            However, various scripts and tools in the Yocto Project
-            development environment assume this convention.
-        </note>
-    </para>
-
-    <para>
-        To help understand the BSP layer concept, consider the BSPs that the
-        Yocto Project supports and provides with each release.
-        You can see the layers in the
-        <ulink url='&YOCTO_DOCS_OM_URL;#yocto-project-repositories'>Yocto Project Source Repositories</ulink>
-        through a web interface at
-        <ulink url='&YOCTO_GIT_URL;'></ulink>.
-        If you go to that interface, you will find a list of repositories
-        under "Yocto Metadata Layers".
-        <note>
-            Layers that are no longer actively supported as part of the
-            Yocto Project appear under the heading "Yocto Metadata Layer
-            Archive."
-        </note>
-        Each repository is a BSP layer supported by the Yocto Project
-        (e.g. <filename>meta-raspberrypi</filename> and
-        <filename>meta-intel</filename>).
-        Each of these layers is a repository unto itself and clicking on
-        the layer name displays two URLs from which you can
-        clone the layer's repository to your local system.
-        Here is an example that clones the Raspberry Pi BSP layer:
-        <literallayout class='monospaced'>
-     $ git clone git://git.yoctoproject.org/meta-raspberrypi
-        </literallayout>
-    </para>
-
-    <para>
-        In addition to BSP layers, the
-        <filename>meta-yocto-bsp</filename> layer is part of the
-        shipped <filename>poky</filename> repository.
-        The <filename>meta-yocto-bsp</filename> layer maintains several
-        "reference" BSPs including the ARM-based Beaglebone, MIPS-based
-        EdgeRouter, and generic versions of
-        both 32-bit and 64-bit IA machines.
-    </para>
-
-    <para>
-        For information on typical BSP development workflow, see the
-        "<link linkend='developing-a-board-support-package-bsp'>Developing a Board Support Package (BSP)</link>"
-        section.
-        For more information on how to set up a local copy of source files
-        from a Git repository, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#locating-yocto-project-source-files'>Locating Yocto Project Source Files</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-
-    <para>
-        The BSP layer's base directory
-        (<filename>meta-<replaceable>bsp_root_name</replaceable></filename>)
-        is the root directory of that Layer.
-        This directory is what you add to the
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-BBLAYERS'><filename>BBLAYERS</filename></ulink>
-        variable in the <filename>conf/bblayers.conf</filename> file found in your
-        <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>,
-        which is established after you run the OpenEmbedded build environment
-        setup script (i.e.
-        <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>).
-        Adding the root directory allows the
-        <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>
-        to recognize the BSP layer and from it build an image.
-        Here is an example:
-        <literallayout class='monospaced'>
-     BBLAYERS ?= " \
-       /usr/local/src/yocto/meta \
-       /usr/local/src/yocto/meta-poky \
-       /usr/local/src/yocto/meta-yocto-bsp \
-       /usr/local/src/yocto/meta-mylayer \
-       "
-        </literallayout>
-        <note><title>Tip</title>
-            Ordering and
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILE_PRIORITY'><filename>BBFILE_PRIORITY</filename></ulink>
-            for the layers listed in <filename>BBLAYERS</filename>
-            matter.
-            For example, if multiple layers define a machine
-            configuration, the OpenEmbedded build system uses
-            the last layer searched given similar layer
-            priorities.
-            The build system works from the top-down through
-            the layers listed in <filename>BBLAYERS</filename>.
-        </note>
-    </para>
-
-    <para>
-        Some BSPs require or depend on additional layers
-        beyond the BSP's root layer in order to be functional.
-        In this case, you need to specify these layers in the
-        <filename>README</filename> "Dependencies" section of the
-        BSP's root layer.
-        Additionally, if any build instructions exist for the
-        BSP, you must add them to the "Dependencies" section.
-    </para>
-
-    <para>
-        Some layers function as a layer to hold other BSP layers.
-        These layers are knows as
-        "<ulink url='&YOCTO_DOCS_REF_URL;#term-container-layer'>container layers</ulink>".
-        An example of this type of layer is OpenEmbedded's
-        <ulink url='https://github.com/openembedded/meta-openembedded'><filename>meta-openembedded</filename></ulink>
-        layer.
-        The <filename>meta-openembedded</filename> layer contains
-        many <filename>meta-*</filename> layers.
-        In cases like this, you need to include the names of the actual
-        layers you want to work with, such as:
-        <literallayout class='monospaced'>
-     BBLAYERS ?= " \
-       /usr/local/src/yocto/meta \
-       /usr/local/src/yocto/meta-poky \
-       /usr/local/src/yocto/meta-yocto-bsp \
-       /usr/local/src/yocto/meta-mylayer \
-       .../meta-openembedded/meta-oe \
-       .../meta-openembedded/meta-perl \
-       .../meta-openembedded/meta-networking \
-       "
-        </literallayout>
-       and so on.
-    </para>
-
-    <para>
-        For more information on layers, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and Creating Layers</ulink>"
-        section of the Yocto Project Development Tasks Manual.
-    </para>
-</section>
-
-<section id='preparing-your-build-host-to-work-with-bsp-layers'>
-    <title>Preparing Your Build Host to Work With BSP Layers</title>
-
-    <para>
-        This section describes how to get your build host ready
-        to work with BSP layers.
-        Once you have the host set up, you can create the layer
-        as described in the
-        "<link linkend='creating-a-new-bsp-layer-using-the-bitbake-layers-script'>Creating a new BSP Layer Using the <filename>bitbake-layers</filename> Script</link>"
-        section.
-        <note>
-            For structural information on BSPs, see the
-            <link linkend='bsp-filelayout'>Example Filesystem Layout</link>
-            section.
-        </note>
-        <orderedlist>
-            <listitem><para>
-                <emphasis>Set Up the Build Environment:</emphasis>
-                Be sure you are set up to use BitBake in a shell.
-                See the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-preparing-the-build-host'>Preparing the Build Host</ulink>"
-                section in the Yocto Project Development Tasks Manual for information
-                on how to get a build host ready that is either a native
-                Linux machine or a machine that uses CROPS.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Clone the <filename>poky</filename> Repository:</emphasis>
-                You need to have a local copy of the Yocto Project
-                <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                (i.e. a local <filename>poky</filename> repository).
-                See the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#cloning-the-poky-repository'>Cloning the <filename>poky</filename> Repository</ulink>"
-                and possibly the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#checking-out-by-branch-in-poky'>Checking Out by Branch in Poky</ulink>"
-                or
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#checkout-out-by-tag-in-poky'>Checking Out by Tag in Poky</ulink>"
-                sections all in the Yocto Project Development Tasks Manual for
-                information on how to clone the <filename>poky</filename>
-                repository and check out the appropriate branch for your work.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Determine the BSP Layer You Want:</emphasis>
-                The Yocto Project supports many BSPs, which are maintained in
-                their own layers or in layers designed to contain several
-                BSPs.
-                To get an idea of machine support through BSP layers, you can
-                look at the
-                <ulink url='&YOCTO_RELEASE_DL_URL;/machines'>index of machines</ulink>
-                for the release.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Optionally Clone the
-                <filename>meta-intel</filename> BSP Layer:</emphasis>
-                If your hardware is based on current Intel CPUs and devices,
-                you can leverage this BSP layer.
-                For details on the <filename>meta-intel</filename> BSP layer,
-                see the layer's
-                <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/meta-intel/tree/README'><filename>README</filename></ulink>
-                file.
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Navigate to Your Source Directory:</emphasis>
-                        Typically, you set up the
-                        <filename>meta-intel</filename> Git repository
-                        inside the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                        (e.g. <filename>poky</filename>).
-                        <literallayout class='monospaced'>
-     $ cd /home/<replaceable>you</replaceable>/poky
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Clone the Layer:</emphasis>
-                        <literallayout class='monospaced'>
-     $ git clone git://git.yoctoproject.org/meta-intel.git
-     Cloning into 'meta-intel'...
-     remote: Counting objects: 15585, done.
-     remote: Compressing objects: 100% (5056/5056), done.
-     remote: Total 15585 (delta 9123), reused 15329 (delta 8867)
-     Receiving objects: 100% (15585/15585), 4.51 MiB | 3.19 MiB/s, done.
-     Resolving deltas: 100% (9123/9123), done.
-     Checking connectivity... done.
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Check Out the Proper Branch:</emphasis>
-                        The branch you check out for
-                        <filename>meta-intel</filename> must match the same
-                        branch you are using for the Yocto Project release
-                        (e.g. &DISTRO_NAME_NO_CAP;):
-                        <literallayout class='monospaced'>
-     $ cd meta-intel
-     $ git checkout -b &DISTRO_NAME_NO_CAP; remotes/origin/&DISTRO_NAME_NO_CAP;
-     Branch &DISTRO_NAME_NO_CAP; set up to track remote branch &DISTRO_NAME_NO_CAP; from origin.
-     Switched to a new branch '&DISTRO_NAME_NO_CAP;'
-                        </literallayout>
-                        <note>
-                            To see the available branch names in a cloned repository,
-                            use the <filename>git branch -al</filename> command.
-                            See the
-                            "<ulink url='&YOCTO_DOCS_DEV_URL;#checking-out-by-branch-in-poky'>Checking Out By Branch in Poky</ulink>"
-                            section in the Yocto Project Development Tasks
-                            Manual for more information.
-                        </note>
-                        </para></listitem>
-                </orderedlist>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Optionally Set Up an Alternative BSP Layer:</emphasis>
-                If your hardware can be more closely leveraged to an
-                existing BSP not within the <filename>meta-intel</filename>
-                BSP layer, you can clone that BSP layer.</para>
-
-                <para>The process is identical to the process used for the
-                <filename>meta-intel</filename> layer except for the layer's
-                name.
-                For example, if you determine that your hardware most
-                closely matches the <filename>meta-raspberrypi</filename>,
-                clone that layer:
-                <literallayout class='monospaced'>
-     $ git clone git://git.yoctoproject.org/meta-raspberrypi
-     Cloning into 'meta-raspberrypi'...
-     remote: Counting objects: 4743, done.
-     remote: Compressing objects: 100% (2185/2185), done.
-     remote: Total 4743 (delta 2447), reused 4496 (delta 2258)
-     Receiving objects: 100% (4743/4743), 1.18 MiB | 0 bytes/s, done.
-     Resolving deltas: 100% (2447/2447), done.
-     Checking connectivity... done.
-                </literallayout>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Initialize the Build Environment:</emphasis>
-                While in the root directory of the Source Directory (i.e.
-                <filename>poky</filename>), run the
-                <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>
-                environment setup script to define the OpenEmbedded
-                build environment on your build host.
-                <literallayout class='monospaced'>
-     $ source &OE_INIT_FILE;
-                </literallayout>
-                Among other things, the script creates the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>,
-                which is <filename>build</filename> in this case
-                and is located in the
-                <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>.
-                After the script runs, your current working directory
-                is set to the <filename>build</filename> directory.
-                </para></listitem>
-        </orderedlist>
-    </para>
-</section>
-
-<section id="bsp-filelayout">
-    <title>Example Filesystem Layout</title>
-
-    <para>
-        Defining a common BSP directory structure allows
-        end-users to understand and become familiar with
-        that standard.
-        A common format also encourages standardization
-        of software support for hardware.
-    </para>
-
-    <para>
-        The proposed form described in this section does
-        have elements that are specific to the OpenEmbedded
-        build system.
-        It is intended that developers can use this structure
-        with other build systems besides the OpenEmbedded build
-        system.
-        It is also intended that it will be be simple to extract
-        information and convert it to other formats if required.
-        The OpenEmbedded build system, through its standard
-        <ulink url='&YOCTO_DOCS_OM_URL;#the-yocto-project-layer-model'>layers mechanism</ulink>,
-        can directly accept the format described as a layer.
-        The BSP layer captures all the hardware-specific details
-        in one place using a standard format, which is useful
-        for any person wishing to use the hardware platform
-        regardless of the build system they are using.
-    </para>
-
-    <para>
-        The BSP specification does not include a build system
-        or other tools - the specification is concerned with
-        the hardware-specific components only.
-        At the end-distribution point, you can ship the BSP
-        layer combined with a build system and other tools.
-        Realize that it is important to maintain the distinction
-        that the BSP layer, a build system, and tools are
-        separate components that could be combined in
-        certain end products.
-    </para>
-
-    <para>
-        Before looking at the recommended form for the directory structure
-        inside a BSP layer, you should be aware that some
-        requirements do exist in order for a BSP layer to
-        be considered <firstterm>compliant</firstterm> with the Yocto Project.
-        For that list of requirements, see the
-        "<link linkend='released-bsp-requirements'>Released BSP Requirements</link>"
-        section.
-    </para>
-
-    <para>
-        Below is the typical directory structure for a BSP layer.
-        While this basic form represents the standard,
-        realize that the actual layout for individual
-        BSPs could differ.
-        <literallayout class='monospaced'>
-     meta-<replaceable>bsp_root_name</replaceable>/
-     meta-<replaceable>bsp_root_name</replaceable>/<replaceable>bsp_license_file</replaceable>
-     meta-<replaceable>bsp_root_name</replaceable>/README
-     meta-<replaceable>bsp_root_name</replaceable>/README.sources
-     meta-<replaceable>bsp_root_name</replaceable>/binary/<replaceable>bootable_images</replaceable>
-     meta-<replaceable>bsp_root_name</replaceable>/conf/layer.conf
-     meta-<replaceable>bsp_root_name</replaceable>/conf/machine/*.conf
-     meta-<replaceable>bsp_root_name</replaceable>/recipes-bsp/*
-     meta-<replaceable>bsp_root_name</replaceable>/recipes-core/*
-     meta-<replaceable>bsp_root_name</replaceable>/recipes-graphics/*
-     meta-<replaceable>bsp_root_name</replaceable>/recipes-kernel/linux/linux-yocto_<replaceable>kernel_rev</replaceable>.bbappend
-        </literallayout>
-    </para>
-
-    <para>
-        Below is an example of the Raspberry Pi BSP
-        layer that is available from the
-        <ulink url='&YOCTO_GIT_URL;'>Source Respositories</ulink>:
-        <literallayout class='monospaced'>
-     meta-raspberrypi/COPYING.MIT
-     meta-raspberrypi/README.md
-     meta-raspberrypi/classes
-     meta-raspberrypi/classes/sdcard_image-rpi.bbclass
-     meta-raspberrypi/conf/
-     meta-raspberrypi/conf/layer.conf
-     meta-raspberrypi/conf/machine/
-     meta-raspberrypi/conf/machine/raspberrypi-cm.conf
-     meta-raspberrypi/conf/machine/raspberrypi-cm3.conf
-     meta-raspberrypi/conf/machine/raspberrypi.conf
-     meta-raspberrypi/conf/machine/raspberrypi0-wifi.conf
-     meta-raspberrypi/conf/machine/raspberrypi0.conf
-     meta-raspberrypi/conf/machine/raspberrypi2.conf
-     meta-raspberrypi/conf/machine/raspberrypi3-64.conf
-     meta-raspberrypi/conf/machine/raspberrypi3.conf
-     meta-raspberrypi/conf/machine/include
-     meta-raspberrypi/conf/machine/include/rpi-base.inc
-     meta-raspberrypi/conf/machine/include/rpi-default-providers.inc
-     meta-raspberrypi/conf/machine/include/rpi-default-settings.inc
-     meta-raspberrypi/conf/machine/include/rpi-default-versions.inc
-     meta-raspberrypi/conf/machine/include/tune-arm1176jzf-s.inc
-     meta-raspberrypi/docs
-     meta-raspberrypi/docs/Makefile
-     meta-raspberrypi/docs/conf.py
-     meta-raspberrypi/docs/contributing.md
-     meta-raspberrypi/docs/extra-apps.md
-     meta-raspberrypi/docs/extra-build-config.md
-     meta-raspberrypi/docs/index.rst
-     meta-raspberrypi/docs/layer-contents.md
-     meta-raspberrypi/docs/readme.md
-     meta-raspberrypi/files
-     meta-raspberrypi/files/custom-licenses
-     meta-raspberrypi/files/custom-licenses/Broadcom
-     meta-raspberrypi/recipes-bsp
-     meta-raspberrypi/recipes-bsp/bootfiles
-     meta-raspberrypi/recipes-bsp/bootfiles/bcm2835-bootfiles.bb
-     meta-raspberrypi/recipes-bsp/bootfiles/rpi-config_git.bb
-     meta-raspberrypi/recipes-bsp/common
-     meta-raspberrypi/recipes-bsp/common/firmware.inc
-     meta-raspberrypi/recipes-bsp/formfactor
-     meta-raspberrypi/recipes-bsp/formfactor/formfactor
-     meta-raspberrypi/recipes-bsp/formfactor/formfactor/raspberrypi
-     meta-raspberrypi/recipes-bsp/formfactor/formfactor/raspberrypi/machconfig
-     meta-raspberrypi/recipes-bsp/formfactor/formfactor_0.0.bbappend
-     meta-raspberrypi/recipes-bsp/rpi-u-boot-src
-     meta-raspberrypi/recipes-bsp/rpi-u-boot-src/files
-     meta-raspberrypi/recipes-bsp/rpi-u-boot-src/files/boot.cmd.in
-     meta-raspberrypi/recipes-bsp/rpi-u-boot-src/rpi-u-boot-scr.bb
-     meta-raspberrypi/recipes-bsp/u-boot
-     meta-raspberrypi/recipes-bsp/u-boot/u-boot
-     meta-raspberrypi/recipes-bsp/u-boot/u-boot/*.patch
-     meta-raspberrypi/recipes-bsp/u-boot/u-boot_%.bbappend
-     meta-raspberrypi/recipes-connectivity
-     meta-raspberrypi/recipes-connectivity/bluez5
-     meta-raspberrypi/recipes-connectivity/bluez5/bluez5
-     meta-raspberrypi/recipes-connectivity/bluez5/bluez5/*.patch
-     meta-raspberrypi/recipes-connectivity/bluez5/bluez5/BCM43430A1.hcd
-     meta-raspberrypi/recipes-connectivity/bluez5/bluez5brcm43438.service
-     meta-raspberrypi/recipes-connectivity/bluez5/bluez5_%.bbappend
-     meta-raspberrypi/recipes-core
-     meta-raspberrypi/recipes-core/images
-     meta-raspberrypi/recipes-core/images/rpi-basic-image.bb
-     meta-raspberrypi/recipes-core/images/rpi-hwup-image.bb
-     meta-raspberrypi/recipes-core/images/rpi-test-image.bb
-     meta-raspberrypi/recipes-core/packagegroups
-     meta-raspberrypi/recipes-core/packagegroups/packagegroup-rpi-test.bb
-     meta-raspberrypi/recipes-core/psplash
-     meta-raspberrypi/recipes-core/psplash/files
-     meta-raspberrypi/recipes-core/psplash/files/psplash-raspberrypi-img.h
-     meta-raspberrypi/recipes-core/psplash/psplash_git.bbappend
-     meta-raspberrypi/recipes-core/udev
-     meta-raspberrypi/recipes-core/udev/udev-rules-rpi
-     meta-raspberrypi/recipes-core/udev/udev-rules-rpi/99-com.rules
-     meta-raspberrypi/recipes-core/udev/udev-rules-rpi.bb
-     meta-raspberrypi/recipes-devtools
-     meta-raspberrypi/recipes-devtools/bcm2835
-     meta-raspberrypi/recipes-devtools/bcm2835/bcm2835_1.52.bb
-     meta-raspberrypi/recipes-devtools/pi-blaster
-     meta-raspberrypi/recipes-devtools/pi-blaster/files
-     meta-raspberrypi/recipes-devtools/pi-blaster/files/*.patch
-     meta-raspberrypi/recipes-devtools/pi-blaster/pi-blaster_git.bb
-     meta-raspberrypi/recipes-devtools/python
-     meta-raspberrypi/recipes-devtools/python/python-rtimu
-     meta-raspberrypi/recipes-devtools/python/python-rtimu/*.patch
-     meta-raspberrypi/recipes-devtools/python/python-rtimu_git.bb
-     meta-raspberrypi/recipes-devtools/python/python-sense-hat_2.2.0.bb
-     meta-raspberrypi/recipes-devtools/python/rpi-gpio
-     meta-raspberrypi/recipes-devtools/python/rpi-gpio/*.patch
-     meta-raspberrypi/recipes-devtools/python/rpi-gpio_0.6.3.bb
-     meta-raspberrypi/recipes-devtools/python/rpio
-     meta-raspberrypi/recipes-devtools/python/rpio/*.patch
-     meta-raspberrypi/recipes-devtools/python/rpio_0.10.0.bb
-     meta-raspberrypi/recipes-devtools/wiringPi
-     meta-raspberrypi/recipes-devtools/wiringPi/files
-     meta-raspberrypi/recipes-devtools/wiringPi/files/*.patch
-     meta-raspberrypi/recipes-devtools/wiringPi/wiringpi_git.bb
-     meta-raspberrypi/recipes-graphics
-     meta-raspberrypi/recipes-graphics/eglinfo
-     meta-raspberrypi/recipes-graphics/eglinfo/eglinfo-fb_%.bbappend
-     meta-raspberrypi/recipes-graphics/eglinfo/eglinfo-x11_%.bbappend
-     meta-raspberrypi/recipes-graphics/mesa
-     meta-raspberrypi/recipes-graphics/mesa/mesa-gl_%.bbappend
-     meta-raspberrypi/recipes-graphics/mesa/mesa_%.bbappend
-     meta-raspberrypi/recipes-graphics/userland
-     meta-raspberrypi/recipes-graphics/userland/userland
-     meta-raspberrypi/recipes-graphics/userland/userland/*.patch
-     meta-raspberrypi/recipes-graphics/userland/userland_git.bb
-     meta-raspberrypi/recipes-graphics/vc-graphics
-     meta-raspberrypi/recipes-graphics/vc-graphics/files
-     meta-raspberrypi/recipes-graphics/vc-graphics/files/egl.pc
-     meta-raspberrypi/recipes-graphics/vc-graphics/files/vchiq.sh
-     meta-raspberrypi/recipes-graphics/vc-graphics/vc-graphics-hardfp.bb
-     meta-raspberrypi/recipes-graphics/vc-graphics/vc-graphics.bb
-     meta-raspberrypi/recipes-graphics/vc-graphics/vc-graphics.inc
-     meta-raspberrypi/recipes-graphics/wayland
-     meta-raspberrypi/recipes-graphics/wayland/weston_%.bbappend
-     meta-raspberrypi/recipes-graphics/xorg-xserver
-     meta-raspberrypi/recipes-graphics/xorg-xserver/xserver-xf86-config
-     meta-raspberrypi/recipes-graphics/xorg-xserver/xserver-xf86-config/rpi
-     meta-raspberrypi/recipes-graphics/xorg-xserver/xserver-xf86-config/rpi/xorg.conf
-     meta-raspberrypi/recipes-graphics/xorg-xserver/xserver-xf86-config/rpi/xorg.conf.d
-     meta-raspberrypi/recipes-graphics/xorg-xserver/xserver-xf86-config/rpi/xorg.conf.d/10-evdev.conf
-     meta-raspberrypi/recipes-graphics/xorg-xserver/xserver-xf86-config/rpi/xorg.conf.d/98-pitft.conf
-     meta-raspberrypi/recipes-graphics/xorg-xserver/xserver-xf86-config/rpi/xorg.conf.d/99-calibration.conf
-     meta-raspberrypi/recipes-graphics/xorg-xserver/xserver-xf86-config_0.1.bbappend
-     meta-raspberrypi/recipes-graphics/xorg-xserver/xserver-xorg_%.bbappend
-     meta-raspberrypi/recipes-kernel
-     meta-raspberrypi/recipes-kernel/linux-firmware
-     meta-raspberrypi/recipes-kernel/linux-firmware/files
-     meta-raspberrypi/recipes-kernel/linux-firmware/files/brcmfmac43430-sdio.bin
-     meta-raspberrypi/recipes-kernel/linux-firmware/files/brcfmac43430-sdio.txt
-     meta-raspberrypi/recipes-kernel/linux-firmware/linux-firmware_%.bbappend
-     meta-raspberrypi/recipes-kernel/linux
-     meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-dev.bb
-     meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi.inc
-     meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_4.14.bb
-     meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_4.9.bb
-     meta-raspberrypi/recipes-multimedia
-     meta-raspberrypi/recipes-multimedia/gstreamer
-     meta-raspberrypi/recipes-multimedia/gstreamer/gstreamer1.0-omx
-     meta-raspberrypi/recipes-multimedia/gstreamer/gstreamer1.0-omx/*.patch
-     meta-raspberrypi/recipes-multimedia/gstreamer/gstreamer1.0-omx_%.bbappend
-     meta-raspberrypi/recipes-multimedia/gstreamer/gstreamer1.0-plugins-bad_%.bbappend
-     meta-raspberrypi/recipes-multimedia/gstreamer/gstreamer1.0-omx-1.12
-     meta-raspberrypi/recipes-multimedia/gstreamer/gstreamer1.0-omx-1.12/*.patch
-     meta-raspberrypi/recipes-multimedia/omxplayer
-     meta-raspberrypi/recipes-multimedia/omxplayer/omxplayer
-     meta-raspberrypi/recipes-multimedia/omxplayer/omxplayer/*.patch
-     meta-raspberrypi/recipes-multimedia/omxplayer/omxplayer_git.bb
-     meta-raspberrypi/recipes-multimedia/x264
-     meta-raspberrypi/recipes-multimedia/x264/x264_git.bbappend
-     meta-raspberrypi/wic
-     meta-raspberrypi/wic/sdimage-raspberrypi.wks
-        </literallayout>
-    </para>
-
-    <para>
-        The following sections describe each part of the proposed
-        BSP format.
-    </para>
-
-    <section id="bsp-filelayout-license">
-        <title>License Files</title>
-
-        <para>
-            You can find these files in the BSP Layer at:
-            <literallayout class='monospaced'>
-     meta-<replaceable>bsp_root_name</replaceable>/<replaceable>bsp_license_file</replaceable>
-            </literallayout>
-        </para>
-
-        <para>
-            These optional files satisfy licensing requirements
-            for the BSP.
-            The type or types of files here can vary depending
-            on the licensing requirements.
-            For example, in the Raspberry Pi BSP, all licensing
-            requirements are handled with the
-            <filename>COPYING.MIT</filename> file.
-        </para>
-
-        <para>
-            Licensing files can be MIT, BSD, GPLv*, and so forth.
-            These files are recommended for the BSP but are
-            optional and totally up to the BSP developer.
-            For information on how to maintain license
-            compliance, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#maintaining-open-source-license-compliance-during-your-products-lifecycle'>Maintaining Open Source License Compliance During Your Product's Lifecycle</ulink>"
-            section in the Yocto Project Development Tasks
-            Manual.
-        </para>
-    </section>
-
-    <section id="bsp-filelayout-readme">
-        <title>README File</title>
-
-        <para>
-            You can find this file in the BSP Layer at:
-            <literallayout class='monospaced'>
-     meta-<replaceable>bsp_root_name</replaceable>/README
-            </literallayout>
-        </para>
-
-        <para>
-            This file provides information on how to boot the live
-            images that are optionally included in the
-            <filename>binary/</filename> directory.
-            The <filename>README</filename> file also provides
-            information needed for building the image.
-        </para>
-
-        <para>
-            At a minimum, the <filename>README</filename> file must
-            contain a list of dependencies, such as the names of
-            any other layers on which the BSP depends and the name of
-            the BSP maintainer with his or her contact information.
-        </para>
-    </section>
-
-    <section id="bsp-filelayout-readme-sources">
-        <title>README.sources File</title>
-
-        <para>
-            You can find this file in the BSP Layer at:
-            <literallayout class='monospaced'>
-     meta-<replaceable>bsp_root_name</replaceable>/README.sources
-            </literallayout>
-        </para>
-
-        <para>
-            This file provides information on where to locate the BSP
-            source files used to build the images (if any) that
-            reside in
-            <filename>meta-<replaceable>bsp_root_name</replaceable>/binary</filename>.
-            Images in the <filename>binary</filename> would be images
-            released with the BSP.
-            The information in the <filename>README.sources</filename>
-            file also helps you find the
-            <ulink url='&YOCTO_DOCS_REF_URL;#metadata'>Metadata</ulink>
-            used to generate the images that ship with the BSP.
-            <note>
-                If the BSP's <filename>binary</filename> directory is
-                missing or the directory has no images, an existing
-                <filename>README.sources</filename> file is
-                meaningless and usually does not exist.
-            </note>
-        </para>
-    </section>
-
-    <section id="bsp-filelayout-binary">
-        <title>Pre-built User Binaries</title>
-
-        <para>
-            You can find these files in the BSP Layer at:
-            <literallayout class='monospaced'>
-     meta-<replaceable>bsp_root_name</replaceable>/binary/<replaceable>bootable_images</replaceable>
-            </literallayout>
-        </para>
-
-        <para>
-            This optional area contains useful pre-built kernels
-            and user-space filesystem images released with the
-            BSP that are appropriate to the target system.
-            This directory typically contains graphical (e.g. Sato)
-            and minimal live images when the BSP tarball has been
-            created and made available in the
-            <ulink url='&YOCTO_HOME_URL;'>Yocto Project</ulink>
-            website.
-            You can use these kernels and images to get a system
-            running and quickly get started on development tasks.
-        </para>
-
-        <para>
-            The exact types of binaries present are highly
-            hardware-dependent.
-            The
-            <link linkend='bsp-filelayout-readme'><filename>README</filename></link>
-            file should be present in the BSP Layer and it
-            explains how to use the images with the target hardware.
-            Additionally, the
-            <link linkend='bsp-filelayout-readme-sources'><filename>README.sources</filename></link>
-            file should be present to locate the sources used to
-            build the images and provide information on the
-            Metadata.
-        </para>
-    </section>
-
-    <section id='bsp-filelayout-layer'>
-        <title>Layer Configuration File</title>
-
-        <para>
-            You can find this file in the BSP Layer at:
-            <literallayout class='monospaced'>
-     meta-<replaceable>bsp_root_name</replaceable>/conf/layer.conf
-            </literallayout>
-        </para>
-
-        <para>
-            The <filename>conf/layer.conf</filename> file
-            identifies the file structure as a layer,
-            identifies the contents of the layer, and
-            contains information about how the build system should
-            use it.
-            Generally, a standard boilerplate file such as the
-            following works.
-            In the following example, you would replace
-            <replaceable>bsp</replaceable> with the actual
-            name of the BSP (i.e.
-            <replaceable>bsp_root_name</replaceable> from the example
-            template).
-        </para>
-
-        <para>
-            <literallayout class='monospaced'>
-     # We have a conf and classes directory, add to BBPATH
-     BBPATH .= ":${LAYERDIR}"
-
-     # We have a recipes directory, add to BBFILES
-     BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \
-                 ${LAYERDIR}/recipes-*/*/*.bbappend"
-
-     BBFILE_COLLECTIONS += "<replaceable>bsp</replaceable>"
-     BBFILE_PATTERN_<replaceable>bsp</replaceable> = "^${LAYERDIR}/"
-     BBFILE_PRIORITY_<replaceable>bsp</replaceable> = "6"
-
-     LAYERDEPENDS_<replaceable>bsp</replaceable> = "intel"
-            </literallayout>
-        </para>
-
-        <para>
-            To illustrate the string substitutions, here are
-            the corresponding statements from the Raspberry
-            Pi <filename>conf/layer.conf</filename> file:
-            <literallayout class='monospaced'>
-     # We have a conf and classes directory, append to BBPATH
-     BBPATH .= ":${LAYERDIR}"
-
-     # We have a recipes directory containing .bb and .bbappend files, add to BBFILES
-     BBFILES += "${LAYERDIR}/recipes*/*/*.bb \
-                 ${LAYERDIR}/recipes*/*/*.bbappend"
-
-     BBFILE_COLLECTIONS += "raspberrypi"
-     BBFILE_PATTERN_raspberrypi := "^${LAYERDIR}/"
-     BBFILE_PRIORITY_raspberrypi = "9"
-
-     # Additional license directories.
-     LICENSE_PATH += "${LAYERDIR}/files/custom-licenses"
-          .
-          .
-          .
-            </literallayout>
-        </para>
-
-        <para>
-            This file simply makes
-            <ulink url='&YOCTO_DOCS_REF_URL;#bitbake-term'>BitBake</ulink>
-            aware of the recipes and configuration directories.
-            The file must exist so that the OpenEmbedded build system
-            can recognize the BSP.
-        </para>
-    </section>
-
-    <section id="bsp-filelayout-machine">
-        <title>Hardware Configuration Options</title>
-
-        <para>
-            You can find these files in the BSP Layer at:
-            <literallayout class='monospaced'>
-     meta-<replaceable>bsp_root_name</replaceable>/conf/machine/*.conf
-            </literallayout>
-        </para>
-
-        <para>
-            The machine files bind together all the information
-            contained elsewhere in the BSP into a format that
-            the build system can understand.
-            Each BSP Layer requires at least one machine file.
-            If the BSP supports multiple machines, multiple
-            machine configuration files can exist.
-            These filenames correspond to the values to which
-            users have set the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink> variable.
-        </para>
-
-        <para>
-            These files define things such as the kernel package
-            to use
-            (<ulink url='&YOCTO_DOCS_REF_URL;#var-PREFERRED_PROVIDER'><filename>PREFERRED_PROVIDER</filename></ulink>
-            of
-            <ulink url='&YOCTO_DOCS_DEV_URL;#metadata-virtual-providers'>virtual/kernel</ulink>),
-            the hardware drivers to include in different types
-            of images, any special software components that are
-            needed, any bootloader information, and also any
-            special image format requirements.
-        </para>
-
-        <para>
-            This configuration file could also include a hardware
-            "tuning" file that is commonly used to define the
-            package architecture and specify optimization flags,
-            which are carefully chosen to give best performance
-            on a given processor.
-        </para>
-
-        <para>
-            Tuning files are found in the
-            <filename>meta/conf/machine/include</filename>
-            directory within the
-            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>.
-            For example, many <filename>tune-*</filename> files
-            (e.g. <filename>tune-arm1136jf-s.inc</filename>,
-            <filename>tune-1586-nlp.inc</filename>, and so forth)
-            reside in the
-            <filename>poky/meta/conf/machine/include</filename>
-            directory.
-        </para>
-
-        <para>
-            To use an include file, you simply include them in the
-            machine configuration file.
-            For example, the Raspberry Pi BSP
-            <filename>raspberrypi3.conf</filename> contains the
-            following statement:
-            <literallayout class='monospaced'>
-     include conf/machine/include/rpi-base.inc
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='bsp-filelayout-misc-recipes'>
-        <title>Miscellaneous BSP-Specific Recipe Files</title>
-
-        <para>
-            You can find these files in the BSP Layer at:
-            <literallayout class='monospaced'>
-     meta-<replaceable>bsp_root_name</replaceable>/recipes-bsp/*
-            </literallayout>
-        </para>
-
-        <para>
-            This optional directory contains miscellaneous recipe
-            files for the BSP.
-            Most notably would be the formfactor files.
-            For example, in the Raspberry Pi BSP, there is the
-            <filename>formfactor_0.0.bbappend</filename> file,
-            which is an append file used to augment the recipe
-            that starts the build.
-            Furthermore, there are machine-specific settings used
-            during the build that are defined by the
-            <filename>machconfig</filename> file further down in
-            the directory.
-            Here is the <filename>machconfig</filename> file for
-            the Raspberry Pi BSP:
-            <literallayout class='monospaced'>
-     HAVE_TOUCHSCREEN=0
-     HAVE_KEYBOARD=1
-
-     DISPLAY_CAN_ROTATE=0
-     DISPLAY_ORIENTATION=0
-     DISPLAY_DPI=133
-            </literallayout>
-        </para>
-
-        <note><para>
-            If a BSP does not have a formfactor entry, defaults
-            are established according to the formfactor
-            configuration file that is installed by the main
-            formfactor recipe
-            <filename>meta/recipes-bsp/formfactor/formfactor_0.0.bb</filename>,
-            which is found in the
-            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>.
-        </para></note>
-    </section>
-
-    <section id='bsp-filelayout-recipes-graphics'>
-        <title>Display Support Files</title>
-
-        <para>
-            You can find these files in the BSP Layer at:
-            <literallayout class='monospaced'>
-     meta-<replaceable>bsp_root_name</replaceable>/recipes-graphics/*
-            </literallayout>
-        </para>
-
-        <para>
-            This optional directory contains recipes for the
-            BSP if it has special requirements for graphics
-            support.
-            All files that are needed for the BSP to support
-            a display are kept here.
-        </para>
-    </section>
-
-    <section id='bsp-filelayout-kernel'>
-        <title>Linux Kernel Configuration</title>
-
-        <para>
-            You can find these files in the BSP Layer at:
-            <literallayout class='monospaced'>
-     meta-<replaceable>bsp_root_name</replaceable>/recipes-kernel/linux/linux*.bbappend
-     meta-<replaceable>bsp_root_name</replaceable>/recipes-kernel/linux/*.bb
-            </literallayout>
-        </para>
-
-        <para>
-            Append files (<filename>*.bbappend</filename>) modify
-            the main kernel recipe being used to build the image.
-            The <filename>*.bb</filename> files would be a
-            developer-supplied kernel recipe.
-            This area of the BSP hierarchy can contain both these
-            types of files although, in practice, it is likely that
-            you would have one or the other.
-        </para>
-
-        <para>
-            For your BSP, you typically want to use an existing Yocto
-            Project kernel recipe found in the
-            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-            at <filename>meta/recipes-kernel/linux</filename>.
-            You can append machine-specific changes to the
-            kernel recipe by using a similarly named append
-            file, which is located in the BSP Layer for your
-            target device (e.g. the
-            <filename>meta-<replaceable>bsp_root_name</replaceable>/recipes-kernel/linux</filename> directory).
-        </para>
-
-        <para>
-            Suppose you are using the
-            <filename>linux-yocto_4.4.bb</filename> recipe to
-            build the kernel.
-            In other words, you have selected the kernel in your
-            <replaceable>bsp_root_name</replaceable><filename>.conf</filename>
-            file by adding
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-PREFERRED_PROVIDER'><filename>PREFERRED_PROVIDER</filename></ulink>
-            and
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-PREFERRED_VERSION'><filename>PREFERRED_VERSION</filename></ulink>
-            statements as follows:
-            <literallayout class='monospaced'>
-     PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
-     PREFERRED_VERSION_linux-yocto ?= "4.4%"
-            </literallayout>
-            <note>
-                When the preferred provider is assumed by
-                default, the
-                <filename>PREFERRED_PROVIDER</filename>
-                statement does not appear in the
-                <replaceable>bsp_root_name</replaceable><filename>.conf</filename> file.
-            </note>
-            You would use the
-            <filename>linux-yocto_4.4.bbappend</filename>
-            file to append specific BSP settings to the kernel,
-            thus configuring the kernel for your particular BSP.
-        </para>
-
-        <para>
-            You can find more information on what your append file
-            should contain in the
-            "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#creating-the-append-file'>Creating the Append File</ulink>"
-            section in the Yocto Project Linux Kernel Development
-            Manual.
-        </para>
-
-        <para>
-            An alternate scenario is when you create your own
-            kernel recipe for the BSP.
-            A good example of this is the Raspberry Pi BSP.
-            If you examine the
-            <filename>recipes-kernel/linux</filename> directory
-            you see the following:
-            <literallayout class='monospaced'>
-     linux-raspberrypi-dev.bb
-     linux-raspberrypi.inc
-     linux-raspberrypi_4.14.bb
-     linux-raspberrypi_4.9.bb
-            </literallayout>
-            The directory contains three kernel recipes and a
-            common include file.
-        </para>
-    </section>
-</section>
-
-<section id='developing-a-board-support-package-bsp'>
-    <title>Developing a Board Support Package (BSP)</title>
-
-    <para>
-        This section describes the high-level procedure you can
-        follow to create a BSP.
-        Although not required for BSP creation, the
-        <filename>meta-intel</filename> repository, which
-        contains many BSPs supported by the Yocto Project,
-        is part of the example.
-    </para>
-
-    <para>
-        For an example that shows how to create a new
-        layer using the tools, see the
-        "<link linkend='creating-a-new-bsp-layer-using-the-bitbake-layers-script'>Creating a New BSP Layer Using the <filename>bitbake-layers</filename> Script</link>"
-        section.
-    </para>
-
-    <para>
-        The following illustration and list summarize the BSP
-        creation general workflow.
-    </para>
-
-    <para>
-        <imagedata fileref="figures/bsp-dev-flow.png" width="7in" depth="5in" align="center" scalefit="1" />
-    </para>
-
-    <para>
-        <orderedlist>
-            <listitem><para>
-                <emphasis>Set up Your Host Development System
-                to Support Development Using the Yocto
-                Project</emphasis>:
-                See the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-preparing-the-build-host'>Preparing the Build Host</ulink>"
-                section in the Yocto Project Development Tasks
-                Manual for options on how to get a system ready
-                to use the Yocto Project.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Establish the
-                <filename>meta-intel</filename>
-                Repository on Your System:</emphasis>
-                Having local copies of these supported BSP layers
-                on your system gives you access to layers you
-                might be able to leverage when creating your BSP.
-                For information on how to get these files, see the
-                "<link linkend='preparing-your-build-host-to-work-with-bsp-layers'>Preparing Your Build Host to Work with BSP Layers</link>"
-                section.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Create Your Own BSP Layer Using the
-                <filename>bitbake-layers</filename>
-                Script:</emphasis>
-                Layers are ideal for isolating and storing work
-                for a given piece of hardware.
-                A layer is really just a location or area in which you
-                place the recipes and configurations for your BSP.
-                In fact, a BSP is, in itself, a special type of layer.
-                The simplest way to create a new BSP layer that is
-                compliant with the Yocto Project is to use the
-                <filename>bitbake-layers</filename> script.
-                For information about that script, see the
-                "<link linkend='creating-a-new-bsp-layer-using-the-bitbake-layers-script'>Creating a New BSP Layer Using the <filename>bitbake-layers</filename> Script</link>"
-                section.</para>
-
-                <para>Another example that illustrates a layer
-                is an application.
-                Suppose you are creating an application that has
-                library or other dependencies in order for it to
-                compile and run.
-                The layer, in this case, would be where all the
-                recipes that define those dependencies are kept.
-                The key point for a layer is that it is an
-                isolated area that contains all the relevant
-                information for the project that the
-                OpenEmbedded build system knows about.
-                For more information on layers, see the
-                "<ulink url='&YOCTO_DOCS_OM_URL;#the-yocto-project-layer-model'>The Yocto Project Layer Model</ulink>"
-                section in the Yocto Project Overview and Concepts
-                Manual.
-                You can also reference the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and Creating Layers</ulink>"
-                section in the Yocto Project Development Tasks
-                Manual.
-                For more information on BSP layers, see the
-                "<link linkend='bsp-layers'>BSP Layers</link>"
-                section.
-                <note><title>Notes</title>
-                    <itemizedlist>
-                        <listitem><para>
-                            Five hardware reference BSPs exist
-                            that are part of the Yocto Project release
-                            and are located in the
-                            <filename>poky/meta-yocto-bsp</filename> BSP
-                            layer:
-                            <itemizedlist>
-                                <listitem><para>
-                                    Texas Instruments Beaglebone
-                                    (<filename>beaglebone-yocto</filename>)
-                                    </para></listitem>
-                                <listitem><para>
-                                    Ubiquiti Networks EdgeRouter Lite
-                                   (<filename>edgerouter</filename>)
-                                   </para></listitem>
-                                <listitem><para>
-                                    Two general IA platforms
-                                    (<filename>genericx86</filename> and
-                                    <filename>genericx86-64</filename>)
-                                    </para></listitem>
-                            </itemizedlist>
-                            </para></listitem>
-                        <listitem><para>
-                            Three core Intel BSPs exist as part of
-                            the Yocto Project release in the
-                            <filename>meta-intel</filename> layer:
-                            <itemizedlist>
-                                <listitem><para>
-                                    <filename>intel-core2-32</filename>,
-                                    which is a BSP optimized for the Core2
-                                    family of CPUs as well as all CPUs
-                                    prior to the Silvermont core.
-                                    </para></listitem>
-                                <listitem><para>
-                                    <filename>intel-corei7-64</filename>,
-                                    which is a BSP optimized for Nehalem
-                                    and later Core and Xeon CPUs as well
-                                    as Silvermont and later Atom CPUs,
-                                    such as the Baytrail SoCs.
-                                    </para></listitem>
-                                <listitem><para>
-                                    <filename>intel-quark</filename>,
-                                    which is a BSP optimized for the
-                                    Intel Galileo gen1 &amp; gen2
-                                    development boards.
-                                    </para></listitem>
-                            </itemizedlist>
-                            </para></listitem>
-                    </itemizedlist>
-                </note></para>
-
-                <para>When you set up a layer for a new BSP,
-                you should follow a standard layout.
-                This layout is described in the
-                "<link linkend='bsp-filelayout'>Example Filesystem Layout</link>"
-                section.
-                In the standard layout, notice the suggested
-                structure for recipes and configuration
-                information.
-                You can see the standard layout for a BSP
-                by examining any supported BSP found in the
-                <filename>meta-intel</filename> layer inside
-                the Source Directory.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Make Configuration Changes to Your New
-                BSP Layer:</emphasis>
-                The standard BSP layer structure organizes the
-                files you need to edit in
-                <filename>conf</filename> and several
-                <filename>recipes-*</filename> directories
-                within the BSP layer.
-                Configuration changes identify where your new
-                layer is on the local system and identifies the
-                kernel you are going to use.
-                When you run the
-                <filename>bitbake-layers</filename> script,
-                you are able to interactively configure many
-                things for the BSP (e.g. keyboard, touchscreen,
-                and so forth).
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Make Recipe Changes to Your New BSP
-                Layer:</emphasis>
-                Recipe changes include altering recipes
-                (<filename>*.bb</filename> files), removing
-                recipes you do not use, and adding new recipes
-                or append files (<filename>.bbappend</filename>)
-                that support your hardware.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Prepare for the Build:</emphasis>
-                Once you have made all the changes to your BSP
-                layer, there remains a few things you need to
-                do for the OpenEmbedded build system in order
-                for it to create your image.
-                You need to get the build environment ready by
-                sourcing an environment setup script
-                (i.e. <filename>oe-init-build-env</filename>)
-                and you need to be sure two key configuration
-                files are configured appropriately: the
-                <filename>conf/local.conf</filename> and the
-                <filename>conf/bblayers.conf</filename> file.
-                You must make the OpenEmbedded build system aware
-                of your new layer.
-                See the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#enabling-your-layer'>Enabling Your Layer</ulink>"
-                section in the Yocto Project Development Tasks Manual
-                for information on how to let the build system
-                know about your new layer.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Build the Image:</emphasis>
-                The OpenEmbedded build system uses the BitBake tool
-                to build images based on the type of image you want to
-                create.
-                You can find more information about BitBake in the
-                <ulink url='&YOCTO_DOCS_BB_URL;'>BitBake User Manual</ulink>.
-                </para>
-
-                <para>The build process supports several types of
-                images to satisfy different needs.
-                See the
-                "<ulink url='&YOCTO_DOCS_REF_URL;#ref-images'>Images</ulink>"
-                chapter in the Yocto Project Reference Manual for
-                information on supported images.
-                </para></listitem>
-        </orderedlist>
-    </para>
-</section>
-
-<section id='requirements-and-recommendations-for-released-bsps'>
-    <title>Requirements and Recommendations for Released BSPs</title>
-
-    <para>
-        Certain requirements exist for a released BSP to be
-        considered compliant with the Yocto Project.
-        Additionally, recommendations also exist.
-        This section describes the requirements and
-        recommendations for released BSPs.
-    </para>
-
-    <section id='released-bsp-requirements'>
-        <title>Released BSP Requirements</title>
-
-        <para>
-            Before looking at BSP requirements, you should consider
-            the following:
-            <itemizedlist>
-                <listitem><para>
-                    The requirements here assume the BSP layer
-                    is a well-formed, "legal" layer that can be
-                    added to the Yocto Project.
-                    For guidelines on creating a layer that meets
-                    these base requirements, see the
-                    "<link linkend='bsp-layers'>BSP Layers</link>"
-                    section in this manual and the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and Creating Layers"</ulink>"
-                    section in the Yocto Project Development Tasks
-                    Manual.
-                    </para></listitem>
-                <listitem><para>
-                    The requirements in this section apply
-                    regardless of how you package a BSP.
-                    You should consult the packaging and distribution
-                    guidelines for your specific release process.
-                    For an example of packaging and distribution
-                    requirements, see the
-                    "<ulink url='https://wiki.yoctoproject.org/wiki/Third_Party_BSP_Release_Process'>Third Party BSP Release Process</ulink>"
-                    wiki page.
-                    </para></listitem>
-                <listitem><para>
-                    The requirements for the BSP as it is made
-                    available to a developer are completely
-                    independent of the released form of the BSP.
-                    For example, the BSP Metadata can be contained
-                    within a Git repository and could have a directory
-                    structure completely different from what appears
-                    in the officially released BSP layer.
-                    </para></listitem>
-                <listitem><para>
-                    It is not required that specific packages or
-                    package modifications exist in the BSP layer,
-                    beyond the requirements for general
-                    compliance with the Yocto Project.
-                    For example, no requirement exists dictating
-                    that a specific kernel or kernel version be
-                    used in a given BSP.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            Following are the requirements for a released BSP
-            that conform to the Yocto Project:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis>Layer Name:</emphasis>
-                    The BSP must have a layer name that follows
-                    the Yocto Project standards.
-                    For information on BSP layer names, see the
-                    "<link linkend='bsp-layers'>BSP Layers</link>" section.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>File System Layout:</emphasis>
-                    When possible, use the same directory names
-                    in your BSP layer as listed in the
-                    <filename>recipes.txt</filename> file, which
-                    is found in <filename>poky/meta</filename>
-                    directory of the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                    or in the OpenEmbedded-Core Layer
-                    (<filename>openembedded-core</filename>) at
-                    <ulink url='http://git.openembedded.org/openembedded-core/tree/meta'></ulink>.
-                    </para>
-
-                    <para>You should place recipes
-                    (<filename>*.bb</filename> files) and recipe
-                    modifications (<filename>*.bbappend</filename>
-                    files) into <filename>recipes-*</filename>
-                    subdirectories by functional area as outlined
-                    in <filename>recipes.txt</filename>.
-                    If you cannot find a category in
-                    <filename>recipes.txt</filename> to fit a
-                    particular recipe, you can make up your own
-                    <filename>recipes-*</filename> subdirectory.
-                    </para>
-
-                    <para>Within any particular
-                    <filename>recipes-*</filename> category, the
-                    layout should match what is found in the
-                    OpenEmbedded-Core Git repository
-                    (<filename>openembedded-core</filename>)
-                    or the Source Directory (<filename>poky</filename>).
-                    In other words, make sure you place related
-                    files in appropriately-related
-                    <filename>recipes-*</filename> subdirectories
-                    specific to the recipe's function, or within
-                    a subdirectory containing a set of closely-related
-                    recipes.
-                    The recipes themselves should follow the general
-                    guidelines for recipes used in the Yocto Project
-                    found in the
-                    "<ulink url='http://openembedded.org/wiki/Styleguide'>OpenEmbedded Style Guide</ulink>".
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>License File:</emphasis>
-                    You must include a license file in the
-                    <filename>meta-</filename><replaceable>bsp_root_name</replaceable>
-                    directory.
-                    This license covers the BSP Metadata as a whole.
-                    You must specify which license to use since no
-                    default license exists when one is not specified.
-                    See the
-                    <ulink url='&YOCTO_GIT_URL;/cgit.cgi/meta-raspberrypi/tree/COPYING.MIT'><filename>COPYING.MIT</filename></ulink>
-                    file for the Raspberry Pi BSP in the
-                    <filename>meta-raspberrypi</filename> BSP layer
-                    as an example.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>README File:</emphasis>
-                    You must include a <filename>README</filename>
-                    file in the
-                    <filename>meta-</filename><replaceable>bsp_root_name</replaceable>
-                    directory.
-                    See the
-                    <ulink url='&YOCTO_GIT_URL;/cgit.cgi/meta-raspberrypi/tree/README.md'><filename>README.md</filename></ulink>
-                    file for the Raspberry Pi BSP in the
-                    <filename>meta-raspberrypi</filename> BSP layer
-                    as an example.</para>
-
-                    <para>At a minimum, the <filename>README</filename>
-                    file should contain the following:
-                    <itemizedlist>
-                        <listitem><para>
-                            A brief description of the target hardware.
-                            </para></listitem>
-                        <listitem><para>
-                            A list of all the dependencies of the BSP.
-                            These dependencies are typically a list
-                            of required layers needed to build the
-                            BSP.
-                            However, the dependencies should also
-                            contain information regarding any other
-                            dependencies the BSP might have.
-                            </para></listitem>
-                        <listitem><para>
-                            Any required special licensing information.
-                            For example, this information includes
-                            information on special variables needed
-                            to satisfy a EULA, or instructions on
-                            information needed to build or distribute
-                            binaries built from the BSP Metadata.
-                            </para></listitem>
-                        <listitem><para>
-                            The name and contact information for the
-                            BSP layer maintainer.
-                            This is the person to whom patches and
-                            questions should be sent.
-                            For information on how to find the right
-                            person, see the
-                            "<ulink url='&YOCTO_DOCS_DEV_URL;#how-to-submit-a-change'>Submitting a Change to the Yocto Project</ulink>"
-                            section in the Yocto Project Development
-                            Tasks Manual.
-                            </para></listitem>
-                        <listitem><para>
-                            Instructions on how to build the BSP using
-                            the BSP layer.
-                            </para></listitem>
-                        <listitem><para>
-                            Instructions on how to boot the BSP build
-                            from the BSP layer.
-                            </para></listitem>
-                        <listitem><para>
-                            Instructions on how to boot the binary
-                            images contained in the
-                            <filename>binary</filename> directory,
-                            if present.
-                            </para></listitem>
-                        <listitem><para>
-                            Information on any known bugs or issues
-                            that users should know about when either
-                            building or booting the BSP binaries.
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>README.sources File:</emphasis>
-                    If you BSP contains binary images in the
-                    <filename>binary</filename> directory, you must
-                    include a <filename>README.sources</filename>
-                    file in the
-                    <filename>meta-</filename><replaceable>bsp_root_name</replaceable>
-                    directory.
-                    This file specifies exactly where you can find
-                    the sources used to generate the binary images.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Layer Configuration File:</emphasis>
-                    You must include a
-                    <filename>conf/layer.conf</filename> file in
-                    the
-                    <filename>meta-</filename><replaceable>bsp_root_name</replaceable>
-                    directory.
-                    This file identifies the
-                    <filename>meta-</filename><replaceable>bsp_root_name</replaceable>
-                    BSP layer as a layer to the build system.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Machine Configuration File:</emphasis>
-                    You must include one or more
-                    <filename>conf/machine/</filename><replaceable>bsp_root_name</replaceable><filename>.conf</filename>
-                    files in the
-                    <filename>meta-</filename><replaceable>bsp_root_name</replaceable>
-                    directory.
-                    These configuration files define machine targets
-                    that can be built using the BSP layer.
-                    Multiple machine configuration files define
-                    variations of machine configurations that the
-                    BSP supports.
-                    If a BSP supports multiple machine variations,
-                    you need to adequately describe each variation
-                    in the BSP <filename>README</filename> file.
-                    Do not use multiple machine configuration files
-                    to describe disparate hardware.
-                    If you do have very different targets, you should
-                    create separate BSP layers for each target.
-                    <note>
-                        It is completely possible for a developer to
-                        structure the working repository as a
-                        conglomeration of unrelated BSP files, and to
-                        possibly generate BSPs targeted for release
-                        from that directory using scripts or some
-                        other mechanism
-                        (e.g. <filename>meta-yocto-bsp</filename> layer).
-                        Such considerations are outside the scope of
-                        this document.
-                    </note>
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='released-bsp-recommendations'>
-        <title>Released BSP Recommendations</title>
-
-        <para>
-            Following are recommendations for released BSPs that
-            conform to the Yocto Project:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis>Bootable Images:</emphasis>
-                    Released BSPs can contain one or more bootable
-                    images.
-                    Including bootable images allows users to easily
-                    try out the BSP using their own hardware.</para>
-
-                    <para>In some cases, it might not be convenient
-                    to include a bootable image.
-                    If so, you might want to make two versions of the
-                    BSP available: one that contains binary images, and
-                    one that does not.
-                    The version that does not contain bootable images
-                    avoids unnecessary download times for users not
-                    interested in the images.</para>
-
-                    <para>If you need to distribute a BSP and include
-                    bootable images or build kernel and filesystems
-                    meant to allow users to boot the BSP for evaluation
-                    purposes, you should put the images and artifacts
-                    within a
-                    <filename>binary/</filename> subdirectory located
-                    in the
-                    <filename>meta-</filename><replaceable>bsp_root_name</replaceable>
-                    directory.
-                    <note>
-                        If you do include a bootable image as part
-                        of the BSP and the image was built by software
-                        covered by the GPL or other open source licenses,
-                        it is your responsibility to understand
-                        and meet all licensing requirements, which could
-                        include distribution of source files.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Use a Yocto Linux Kernel:</emphasis>
-                    Kernel recipes in the BSP should be based on a
-                    Yocto Linux kernel.
-                    Basing your recipes on these kernels reduces
-                    the costs for maintaining the BSP and increases
-                    its scalability.
-                    See the <filename>Yocto Linux Kernel</filename>
-                    category in the
-                    <ulink url='&YOCTO_GIT_URL;'>Source Repositories</ulink>
-                    for these kernels.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='customizing-a-recipe-for-a-bsp'>
-    <title>Customizing a Recipe for a BSP</title>
-
-    <para>
-        If you plan on customizing a recipe for a particular BSP,
-        you need to do the following:
-        <itemizedlist>
-            <listitem><para>
-                Create a <filename>*.bbappend</filename> file for
-                the modified recipe.
-                For information on using append files, see the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#using-bbappend-files'>Using .bbappend Files in Your Layer</ulink>"
-                section in the Yocto Project Development Tasks
-                Manual.
-                </para></listitem>
-            <listitem><para>
-                Ensure your directory structure in the BSP layer
-                that supports your machine is such that the
-                OpenEmbedded build system can find it.
-                See the example later in this section for more
-                information.
-                </para></listitem>
-            <listitem><para>
-                Put the append file in a directory whose name matches
-                the machine's name and is located in an appropriate
-                sub-directory inside the BSP layer (i.e.
-                <filename>recipes-bsp</filename>,
-                <filename>recipes-graphics</filename>,
-                <filename>recipes-core</filename>, and so forth).
-                </para></listitem>
-            <listitem><para>
-                Place the BSP-specific files in the proper
-                directory inside the BSP layer.
-                How expansive the layer is affects where you must
-                place these files.
-                For example, if your layer supports several
-                different machine types, you need to be sure your
-                layer's directory structure includes hierarchy
-                that separates the files according to machine.
-                If your layer does not support multiple machines,
-                the layer would not have that additional hierarchy
-                and the files would obviously not be able to reside
-                in a machine-specific directory.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        Following is a specific example to help you better understand
-        the process.
-        This example customizes customizes a recipe by adding a
-        BSP-specific configuration file named
-        <filename>interfaces</filename> to the
-        <filename>init-ifupdown_1.0.bb</filename> recipe for machine
-        "xyz" where the BSP layer also supports several other
-        machines:
-        <orderedlist>
-            <listitem><para>
-                Edit the
-                <filename>init-ifupdown_1.0.bbappend</filename> file
-                so that it contains the following:
-                <literallayout class='monospaced'>
-     FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
-                </literallayout>
-                The append file needs to be in the
-                <filename>meta-xyz/recipes-core/init-ifupdown</filename>
-                directory.
-                </para></listitem>
-            <listitem><para>
-                Create and place the new
-                <filename>interfaces</filename> configuration file in
-                the BSP's layer here:
-                <literallayout class='monospaced'>
-     meta-xyz/recipes-core/init-ifupdown/files/xyz-machine-one/interfaces
-                </literallayout>
-                <note>
-                    If the <filename>meta-xyz</filename> layer did
-                    not support multiple machines, you would place
-                    the <filename>interfaces</filename> configuration
-                    file in the layer here:
-                    <literallayout class='monospaced'>
-     meta-xyz/recipes-core/init-ifupdown/files/interfaces
-                    </literallayout>
-                </note>
-                The
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></ulink>
-                variable in the append files extends the search path
-                the build system uses to find files during the build.
-                Consequently, for this example you need to have the
-                <filename>files</filename> directory in the same
-                location as your append file.
-                </para></listitem>
-       </orderedlist>
-    </para>
-</section>
-
-<section id='bsp-licensing-considerations'>
-    <title>BSP Licensing Considerations</title>
-
-    <para>
-        In some cases, a BSP contains separately-licensed
-        Intellectual Property (IP) for a component or components.
-        For these cases, you are required to accept the terms
-        of a commercial or other type of license that requires
-        some kind of explicit End User License Agreement (EULA).
-        Once you accept the license, the OpenEmbedded build system
-        can then build and include the corresponding component
-        in the final BSP image.
-        If the BSP is available as a pre-built image, you can
-        download the image after agreeing to the license or EULA.
-    </para>
-
-    <para>
-        You could find that some separately-licensed components
-        that are essential for normal operation of the system might
-        not have an unencumbered (or free) substitute.
-        Without these essential components, the system would be
-        non-functional.
-        Then again, you might find that other licensed components
-        that are simply 'good-to-have' or purely elective do have
-        an unencumbered, free replacement component that you can
-        use rather than agreeing to the separately-licensed
-        component.
-        Even for components essential to the system, you might
-        find an unencumbered component that is not identical but
-        will work as a less-capable version of the licensed version
-        in the BSP recipe.
-    </para>
-
-    <para>
-        For cases where you can substitute a free component and
-        still maintain the system's functionality, the "DOWNLOADS"
-        selection from the "SOFTWARE" tab on the
-        <ulink url='&YOCTO_HOME_URL;'>Yocto Project website</ulink>
-        makes available de-featured BSPs that are completely free
-        of any IP encumbrances.
-        For these cases, you can use the substitution directly and
-        without any further licensing requirements.
-        If present, these fully de-featured BSPs are named
-        appropriately different as compared to the names of their
-        respective encumbered BSPs.
-        If available, these substitutions are your simplest and
-        most preferred options.
-        Obviously, use of these substitutions assumes the resulting
-        functionality meets system requirements.
-        <note>
-            If however, a non-encumbered version is unavailable or
-            it provides unsuitable functionality or quality, you can
-            use an encumbered version.
-        </note>
-    </para>
-
-    <para>
-        A couple different methods exist within the OpenEmbedded
-        build system to satisfy the licensing requirements for an
-        encumbered BSP.
-        The following list describes them in order of preference:
-        <orderedlist>
-            <listitem><para>
-                <emphasis>Use the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-LICENSE_FLAGS'><filename>LICENSE_FLAGS</filename></ulink>
-                Variable to Define the Recipes that Have Commercial
-                or Other Types of Specially-Licensed Packages:</emphasis>
-                For each of those recipes, you can specify a
-                matching license string in a
-                <filename>local.conf</filename> variable named
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-LICENSE_FLAGS_WHITELIST'><filename>LICENSE_FLAGS_WHITELIST</filename></ulink>.
-                Specifying the matching license string signifies
-                that you agree to the license.
-                Thus, the build system can build the corresponding
-                recipe and include the component in the image.
-                See the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#enabling-commercially-licensed-recipes'>Enabling Commercially Licensed Recipes</ulink>"
-                section in the Yocto Project Development Tasks
-                Manual for details on how to use these variables.
-                </para>
-
-                <para>If you build as you normally would, without
-	        specifying any recipes in the
-	        <filename>LICENSE_FLAGS_WHITELIST</filename>, the
-                build stops and provides you with the list of recipes
-                that you have tried to include in the image that
-                need entries in the
-                <filename>LICENSE_FLAGS_WHITELIST</filename>.
-                Once you enter the appropriate license flags into
-                the whitelist, restart the build to continue where
-                it left off.
-	        During the build, the prompt will not appear again
-	        since you have satisfied the requirement.</para>
-
-                <para>Once the appropriate license flags are on the
-                white list in the
-                <filename>LICENSE_FLAGS_WHITELIST</filename> variable,
-                you can build the encumbered image with no change
-                at all to the normal build process.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Get a Pre-Built Version of the BSP:</emphasis>
-                You can get this type of BSP by selecting the
-                "DOWNLOADS" item from the "SOFTWARE" tab on the
-                <ulink url='&YOCTO_HOME_URL;'>Yocto Project website</ulink>.
-                You can download BSP tarballs that contain
-                proprietary components after agreeing to the
-                licensing requirements of each of the individually
-                encumbered packages as part of the download process.
-                Obtaining the BSP this way allows you to access an
-                encumbered image immediately after agreeing to the
-                click-through license agreements presented by the
-                website.
-                If you want to build the image yourself using
-                the recipes contained within the BSP tarball,
-                you will still need to create an appropriate
-                <filename>LICENSE_FLAGS_WHITELIST</filename>
-                to match the encumbered recipes in the BSP.
-                </para></listitem>
-        </orderedlist>
-        <note>
-            Pre-compiled images are bundled with a time-limited
-            kernel that runs for a predetermined amount of time
-            (10 days) before it forces the system to reboot.
-            This limitation is meant to discourage direct
-            redistribution of the image.
-            You must eventually rebuild the image if you want
-            to remove this restriction.
-        </note>
-    </para>
-</section>
-
-<section id='creating-a-new-bsp-layer-using-the-bitbake-layers-script'>
-    <title>Creating a new BSP Layer Using the <filename>bitbake-layers</filename> Script</title>
-
-    <para>
-        The <filename>bitbake-layers create-layer</filename> script
-        automates creating a BSP layer.
-        What makes a layer a "BSP layer" is the presence of at least one machine
-        configuration file.
-        Additionally, a BSP layer usually has a kernel recipe
-        or an append file that leverages off an existing kernel recipe.
-        The primary requirement, however, is the machine configuration.
-    </para>
-
-    <para>
-        Use these steps to create a BSP layer:
-        <itemizedlist>
-            <listitem><para>
-                <emphasis>Create a General Layer:</emphasis>
-                Use the <filename>bitbake-layers</filename> script with the
-                <filename>create-layer</filename> subcommand to create a
-                new general layer.
-                For instructions on how to create a general layer using the
-                <filename>bitbake-layers</filename> script, see the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-a-general-layer-using-the-bitbake-layers-script'>Creating a General Layer Using the <filename>bitbake-layers</filename> Script</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Create a Layer Configuration File:</emphasis>
-                Every layer needs a layer configuration file.
-                This configuration file establishes locations for the
-                layer's recipes, priorities for the layer, and so forth.
-                You can find examples of <filename>layer.conf</filename>
-                files in the Yocto Project
-                <ulink url='&YOCTO_GIT_URL;'>Source Repositories</ulink>.
-                To get examples of what you need in your configuration
-                file, locate a layer (e.g. "meta-ti") and examine the
-                <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/meta-ti/tree/conf/layer.conf'></ulink>
-                file.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Create a Machine Configuration File:</emphasis>
-                Create a <filename>conf/machine/</filename><replaceable>bsp_root_name</replaceable><filename>.conf</filename>
-                file.
-                See
-                <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta-yocto-bsp/conf/machine'><filename>meta-yocto-bsp/conf/machine</filename></ulink>
-                for sample
-                <replaceable>bsp_root_name</replaceable><filename>.conf</filename>
-                files.
-                Other samples such as
-                <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/meta-ti/tree/conf/machine'><filename>meta-ti</filename></ulink>
-                and
-                <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/meta-freescale/tree/conf/machine'><filename>meta-freescale</filename></ulink>
-                exist from other vendors that have more specific machine
-                and tuning examples.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Create a Kernel Recipe:</emphasis>
-                Create a kernel recipe in <filename>recipes-kernel/linux</filename>
-                by either using a kernel append file or a new custom kernel
-                recipe file (e.g. <filename>yocto-linux_4.12.bb</filename>).
-                The BSP layers mentioned in the previous step also contain different
-                kernel examples.
-                See the
-                "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#modifying-an-existing-recipe'>Modifying an Existing Recipe</ulink>"
-                section in the Yocto Project Linux Kernel Development Manual
-                for information on how to create a custom kernel.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        The remainder of this section provides a description of
-        the Yocto Project reference BSP for Beaglebone, which
-        resides in the
-        <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta-yocto-bsp'><filename>meta-yocto-bsp</filename></ulink>
-        layer.
-    </para>
-
-    <section id='bsp-layer-configuration-example'>
-        <title>BSP Layer Configuration Example</title>
-
-        <para>
-            The layer's <filename>conf</filename> directory
-            contains the <filename>layer.conf</filename>
-            configuration file.
-            In this example, the
-            <filename>conf/layer.conf</filename> is the
-            following:
-            <literallayout class='monospaced'>
-     # We have a conf and classes directory, add to BBPATH
-     BBPATH .= ":${LAYERDIR}"
-
-     # We have recipes-* directories, add to BBFILES
-     BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \
-                 ${LAYERDIR}/recipes-*/*/*.bbappend"
-
-     BBFILE_COLLECTIONS += "yoctobsp"
-     BBFILE_PATTERN_yoctobsp = "^${LAYERDIR}/"
-     BBFILE_PRIORITY_yoctobsp = "5"
-     LAYERVERSION_yoctobsp = "4"
-     LAYERSERIES_COMPAT_yoctobsp = "&DISTRO_NAME_NO_CAP;"
-            </literallayout>
-            The variables used in this file configure the
-            layer.
-            A good way to learn about layer configuration
-            files is to examine various files for BSP from
-            the
-            <ulink url='&YOCTO_GIT_URL;'>Source Repositories</ulink>.
-        </para>
-
-        <para>
-            For a detailed description of this particular
-            layer configuration file, see
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-layer-config-file-description'>step 3</ulink>
-            in the discussion that describes how to create
-            layers in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id='bsp-machine-configuration-example'>
-        <title>BSP Machine Configuration Example</title>
-
-        <para>
-            As mentioned earlier in this section, the existence
-            of a machine configuration file is what makes a
-            layer a BSP layer as compared to a general or
-            kernel layer.
-        </para>
-
-        <para>
-            One or more machine configuration files exist in the
-            <replaceable>bsp_layer</replaceable><filename>/conf/machine/</filename>
-            directory of the layer:
-            <literallayout class='monospaced'>
-     <replaceable>bsp_layer</replaceable><filename>/conf/machine/</filename><replaceable>machine1</replaceable><filename>.conf</filename>
-     <replaceable>bsp_layer</replaceable><filename>/conf/machine/</filename><replaceable>machine2</replaceable><filename>.conf</filename>
-     <replaceable>bsp_layer</replaceable><filename>/conf/machine/</filename><replaceable>machine3</replaceable><filename>.conf</filename>
-     ... more ...
-            </literallayout>
-            For example, the machine configuration file for the
-            <ulink url='http://beagleboard.org/bone'>BeagleBone and BeagleBone Black development boards</ulink>
-            is located in the layer
-            <filename>poky/meta-yocto-bsp/conf/machine</filename>
-            and is named <filename>beaglebone-yocto.conf</filename>:
-            <literallayout class='monospaced'>
-     #@TYPE: Machine
-     #@NAME: Beaglebone-yocto machine
-     #@DESCRIPTION: Reference machine configuration for http://beagleboard.org/bone and http://beagleboard.org/black boards
-
-     PREFERRED_PROVIDER_virtual/xserver ?= "xserver-xorg"
-     XSERVER ?= "xserver-xorg \
-                xf86-video-modesetting \
-                "
-
-     MACHINE_EXTRA_RRECOMMENDS = "kernel-modules kernel-devicetree"
-
-     EXTRA_IMAGEDEPENDS += "u-boot"
-
-     DEFAULTTUNE ?= "cortexa8hf-neon"
-     include conf/machine/include/tune-cortexa8.inc
-
-     IMAGE_FSTYPES += "tar.bz2 jffs2 wic wic.bmap"
-     EXTRA_IMAGECMD_jffs2 = "-lnp "
-     WKS_FILE ?= "beaglebone-yocto.wks"
-     IMAGE_INSTALL_append = " kernel-devicetree kernel-image-zimage"
-     do_image_wic[depends] += "mtools-native:do_populate_sysroot dosfstools-native:do_populate_sysroot"
-
-     SERIAL_CONSOLES ?= "115200;ttyS0 115200;ttyO0"
-     SERIAL_CONSOLES_CHECK = "${SERIAL_CONSOLES}"
-
-     PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
-     PREFERRED_VERSION_linux-yocto ?= "5.0%"
-
-     KERNEL_IMAGETYPE = "zImage"
-     KERNEL_DEVICETREE = "am335x-bone.dtb am335x-boneblack.dtb am335x-bonegreen.dtb"
-     KERNEL_EXTRA_ARGS += "LOADADDR=${UBOOT_ENTRYPOINT}"
-
-     SPL_BINARY = "MLO"
-     UBOOT_SUFFIX = "img"
-     UBOOT_MACHINE = "am335x_evm_defconfig"
-     UBOOT_ENTRYPOINT = "0x80008000"
-     UBOOT_LOADADDRESS = "0x80008000"
-
-     MACHINE_FEATURES = "usbgadget usbhost vfat alsa"
-
-     IMAGE_BOOT_FILES ?= "u-boot.${UBOOT_SUFFIX} MLO zImage am335x-bone.dtb am335x-boneblack.dtb am335x-bonegreen.dtb"
-            </literallayout>
-            The variables used to configure the machine define
-            machine-specific properties;
-            for example, machine-dependent packages, machine
-            tunings, the type of kernel to build, and
-            U-Boot configurations.
-        </para>
-
-        <para>
-            The following list provides some explanation
-            for the statements found in the example reference
-            machine configuration file for the BeagleBone
-            development boards.
-            Realize that much more can be defined as part of
-            a machine's configuration file.
-            In general, you can learn about related variables
-            that this example does not have by locating the
-            variables in the
-            "<ulink url='&YOCTO_DOCS_REF_URL;#ref-variables-glos'>Yocto Project Variables Glossary</ulink>"
-            in the Yocto Project Reference Manual.
-            <itemizedlist>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PREFERRED_PROVIDER'><filename>PREFERRED_PROVIDER_virtual/xserver</filename></ulink>:
-                    The recipe that provides "virtual/xserver" when
-                    more than one provider is found.
-                    In this case, the recipe that provides
-                    "virtual/xserver" is "xserver-xorg", which
-                    exists in
-                    <filename>poky/meta/recipes-graphics/xorg-xserver</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-XSERVER'><filename>XSERVER</filename></ulink>:
-                    The packages that should be installed to provide
-                    an X server and drivers for the machine.
-                    In this example, the "xserver-xorg" and
-                    "xf86-video-modesetting" are installed.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_EXTRA_RRECOMMENDS'><filename>MACHINE_EXTRA_RRECOMMENDS</filename></ulink>:
-                    A list of machine-dependent packages
-                    not essential for booting the image.
-                    Thus, the build does not fail if the packages
-                    do not exist.
-                    However, the packages are required for a
-                    fully-featured image.
-                    <note><title>Tip</title>
-                        Many <filename>MACHINE*</filename> variables
-                        exist that help you configure a particular
-                        piece of hardware.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_IMAGEDEPENDS'><filename>EXTRA_IMAGEDEPENDS</filename></ulink>:
-                    Recipes to build that do not provide packages
-                    for installing into the root filesystem
-                    but building the image depends on the
-                    recipes.
-                    Sometimes a recipe is required to build
-                    the final image but is not needed in the
-                    root filesystem.
-                    In this case, the U-Boot recipe must be
-                    built for the image.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-DEFAULTTUNE'><filename>DEFAULTTUNE</filename></ulink>:
-                    Machines use tunings to optimize machine,
-                    CPU, and application performance.
-                    These features, which are collectively known
-                    as "tuning features", exist in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#oe-core'>OpenEmbedded-Core (OE-Core)</ulink>
-                    layer (e.g.
-                    <filename>poky/meta/conf/machine/include</filename>).
-                    In this example, the default tunning file is
-                    "cortexa8hf-neon".
-                    <note>
-                        The <filename>include</filename> statement
-                        that pulls in the
-                        <filename>conf/machine/include/tune-cortexa8.inc</filename>
-                        file provides many tuning possibilities.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></ulink>:
-                    The formats the OpenEmbedded build system
-                    uses during the build when creating the
-                    root filesystem.
-                    In this example, four types of images are
-                    supported.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_IMAGECMD'><filename>EXTRA_IMAGECMD</filename></ulink>:
-                    Specifies additional options for image
-                    creation commands.
-                    In this example, the "-lnp " option is used
-                    when creating the
-                    <ulink url='https://en.wikipedia.org/wiki/JFFS2'>JFFS2</ulink>
-                    image.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-WKS_FILE'><filename>WKS_FILE</filename></ulink>:
-                    The location of the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-kickstart'>Wic kickstart</ulink>
-                    file used by the OpenEmbedded build system to
-                    create a partitioned image (image.wic).
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_INSTALL'><filename>IMAGE_INSTALL</filename></ulink>:
-                    Specifies packages to install into an image
-                    through the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-image'><filename>image</filename></ulink>
-                    class.
-                    Recipes use the <filename>IMAGE_INSTALL</filename>
-                    variable.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>do_image_wic[depends]</filename>:
-                    A task that is constructed during the build.
-                    In this example, the task depends on specific tools
-                    in order to create the sysroot when buiding a Wic
-                    image.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SERIAL_CONSOLES'><filename>SERIAL_CONSOLES</filename></ulink>:
-                    Defines a serial console (TTY) to enable using
-                    getty.
-                    In this case, the baud rate is "115200" and the
-                    device name is "ttyO0".
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PREFERRED_PROVIDER'><filename>PREFERRED_PROVIDER_virtual/kernel</filename></ulink>:
-                    Specifies the recipe that provides
-                    "virtual/kernel" when more than one provider
-                    is found.
-                    In this case, the recipe that provides
-                    "virtual/kernel" is "linux-yocto", which
-                    exists in the layer's
-                    <filename>recipes-kernel/linux</filename> directory.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PREFERRED_VERSION'><filename>PREFERRED_VERSION_linux-yocto</filename></ulink>:
-                    Defines the version of the recipe used
-                    to build the kernel, which is "5.0" in this
-                    case.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-KERNEL_IMAGETYPE'><filename>KERNEL_IMAGETYPE</filename></ulink>:
-                    The type of kernel to build for the device.
-                    In this case, the OpenEmbedded build system
-                    creates a "zImage" image type.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-KERNEL_DEVICETREE'><filename>KERNEL_DEVICETREE</filename></ulink>:
-                    The names of the generated Linux kernel device
-                    trees (i.e. the <filename>*.dtb</filename>) files.
-                    All the device trees for the various BeagleBone
-                    devices are included.
-<!--
-                    You have to include some *.inc files according to the definition of KERNEL_DEVICETREE.
-                    I don't see where these are being provided.
--->
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-KERNEL_EXTRA_ARGS'><filename>KERNEL_EXTRA_ARGS</filename></ulink>:
-                    Additional <filename>make</filename>
-                    command-line arguments the OpenEmbedded build
-                    system passes on when compiling the kernel.
-                    In this example, "LOADADDR=${UBOOT_ENTRYPOINT}"
-                    is passed as a command-line argument.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SPL_BINARY'><filename>SPL_BINARY</filename></ulink>:
-                    Defines the Secondary Program Loader (SPL) binary
-                    type.
-                    In this case, the SPL binary is set to
-                    "MLO", which stands for Multimedia card LOader.
-                    </para>
-
-                    <para>The BeagleBone development board requires an
-                    SPL to boot and that SPL file type must be MLO.
-                    Consequently, the machine configuration needs to
-                    define <filename>SPL_BINARY</filename> as "MLO".
-                    <note>
-                        For more information on how the SPL variables
-                        are used, see the
-                        <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta/recipes-bsp/u-boot/u-boot.inc'><filename>u-boot.inc</filename></ulink>
-                        include file.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-UBOOT_ENTRYPOINT'><filename>UBOOT_*</filename></ulink>:
-                    Defines various U-Boot configurations needed
-                    to build a U-Boot image.
-                    In this example, a U-Boot image is required
-                    to boot the BeagleBone device.
-                    See the following variables for more information:
-                    <itemizedlist>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-UBOOT_SUFFIX'><filename>UBOOT_SUFFIX</filename></ulink>:
-                            Points to the generated U-Boot extension.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-UBOOT_MACHINE'><filename>UBOOT_MACHINE</filename></ulink>:
-                            Specifies the value passed on the make command line when building a U-Boot image.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-UBOOT_ENTRYPOINT'><filename>UBOOT_ENTRYPOINT</filename></ulink>:
-                            Specifies the entry point for the U-Boot image.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-UBOOT_LOADADDRESS'><filename>UBOOT_LOADADDRESS</filename></ulink>:
-                            Specifies the load address for the U-Boot image.
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_FEATURES'><filename>MACHINE_FEATURES</filename></ulink>:
-                    Specifies the list of hardware features the
-                    BeagleBone device is capable of supporting.
-                    In this case, the device supports
-                    "usbgadget usbhost vfat alsa".
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_BOOT_FILES'><filename>IMAGE_BOOT_FILES</filename></ulink>:
-                    Files installed into the device's boot partition
-                    when preparing the image using the Wic tool
-                    with the <filename>bootimg-partition</filename> or <filename>bootimg-efi</filename>
-                    source plugin.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='bsp-kernel-recipe-example'>
-        <title>BSP Kernel Recipe Example</title>
-
-        <para>
-            The kernel recipe used to build the kernel image
-            for the BeagleBone device was established in the
-            machine configuration:
-            <literallayout class='monospaced'>
-     PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
-     PREFERRED_VERSION_linux-yocto ?= "5.0%"
-            </literallayout>
-            The <filename>meta-yocto-bsp/recipes-kernel/linux</filename>
-            directory in the layer contains metadata used
-            to build the kernel.
-            In this case, a kernel append file (i.e.
-            <filename>linux-yocto_5.0.bbappend</filename>) is used to
-            override an established kernel recipe (i.e.
-            <filename>linux-yocto_5.0.bb</filename>), which is
-            located in
-            <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta/recipes-kernel/linux'></ulink>.
-        </para>
-
-        <para>
-            Following is the contents of the append file:
-            <literallayout class='monospaced'>
-     KBRANCH_genericx86  = "v5.0/standard/base"
-     KBRANCH_genericx86-64  = "v5.0/standard/base"
-     KBRANCH_edgerouter = "v5.0/standard/edgerouter"
-     KBRANCH_beaglebone-yocto = "v5.0/standard/beaglebone"
-
-     KMACHINE_genericx86 ?= "common-pc"
-     KMACHINE_genericx86-64 ?= "common-pc-64"
-     KMACHINE_beaglebone-yocto ?= "beaglebone"
-
-     SRCREV_machine_genericx86    ?= "3df4aae6074e94e794e27fe7f17451d9353cdf3d"
-     SRCREV_machine_genericx86-64 ?= "3df4aae6074e94e794e27fe7f17451d9353cdf3d"
-     SRCREV_machine_edgerouter ?= "3df4aae6074e94e794e27fe7f17451d9353cdf3d"
-     SRCREV_machine_beaglebone-yocto ?= "3df4aae6074e94e794e27fe7f17451d9353cdf3d"
-
-     COMPATIBLE_MACHINE_genericx86 = "genericx86"
-     COMPATIBLE_MACHINE_genericx86-64 = "genericx86-64"
-     COMPATIBLE_MACHINE_edgerouter = "edgerouter"
-     COMPATIBLE_MACHINE_beaglebone-yocto = "beaglebone-yocto"
-
-     LINUX_VERSION_genericx86 = "5.0.3"
-     LINUX_VERSION_genericx86-64 = "5.0.3"
-     LINUX_VERSION_edgerouter = "5.0.3"
-     LINUX_VERSION_beaglebone-yocto = "5.0.3"
-            </literallayout>
-            This particular append file works for all the
-            machines that are part of the
-            <filename>meta-yocto-bsp</filename> layer.
-            The relevant statements are appended with
-            the "beaglebone-yocto" string.
-            The OpenEmbedded build system uses these
-            statements to override similar statements
-            in the kernel recipe:
-            <itemizedlist>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-KBRANCH'><filename>KBRANCH</filename></ulink>:
-                    Identifies the kernel branch that is validated,
-                    patched, and configured during the build.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-KMACHINE'><filename>KMACHINE</filename></ulink>:
-                    Identifies the machine name as known by the
-                    kernel, which is sometimes a different name
-                    than what is known by the OpenEmbedded build
-                    system.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SRCREV'><filename>SRCREV</filename></ulink>:
-                    Identifies the revision of the source code used
-                    to build the image.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-COMPATIBLE_MACHINE'><filename>COMPATIBLE_MACHINE</filename></ulink>:
-                    A regular expression that resolves to one or
-                    more target machines with which the recipe
-                    is compatible.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-LINUX_VERSION'><filename>LINUX_VERSION</filename></ulink>:
-                    The Linux version from kernel.org used by
-                    the OpenEmbedded build system to build the
-                    kernel image.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-</chapter>
diff --git a/poky/documentation/bsp-guide/history.rst b/poky/documentation/bsp-guide/history.rst
index b52006a..d7cd8ef 100644
--- a/poky/documentation/bsp-guide/history.rst
+++ b/poky/documentation/bsp-guide/history.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ***********************
 Manual Revision History
diff --git a/poky/documentation/conf.py b/poky/documentation/conf.py
index 80d5e8e..ebc26aa 100644
--- a/poky/documentation/conf.py
+++ b/poky/documentation/conf.py
@@ -1,6 +1,6 @@
 # Configuration file for the Sphinx documentation builder.
 #
-# SPDX-License-Identifier: CC-BY-2.0-UK
+# SPDX-License-Identifier: CC-BY-SA-2.0-UK
 #
 # This file only contains a selection of the most common options. For a full
 # list see the documentation:
diff --git a/poky/documentation/dev-manual/dev-manual-common-tasks.rst b/poky/documentation/dev-manual/dev-manual-common-tasks.rst
index 179979c..bef8bf8 100644
--- a/poky/documentation/dev-manual/dev-manual-common-tasks.rst
+++ b/poky/documentation/dev-manual/dev-manual-common-tasks.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ************
 Common Tasks
diff --git a/poky/documentation/dev-manual/dev-manual-common-tasks.xml b/poky/documentation/dev-manual/dev-manual-common-tasks.xml
deleted file mode 100644
index 247f6ab..0000000
--- a/poky/documentation/dev-manual/dev-manual-common-tasks.xml
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@@ -1,16081 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='extendpoky'>
-
-<title>Common Tasks</title>
-    <para>
-        This chapter describes fundamental procedures such as creating layers,
-        adding new software packages, extending or customizing images,
-        porting work to new hardware (adding a new machine), and so forth.
-        You will find that the procedures documented here occur often in the
-        development cycle using the Yocto Project.
-    </para>
-
-    <section id="understanding-and-creating-layers">
-        <title>Understanding and Creating Layers</title>
-
-        <para>
-            The OpenEmbedded build system supports organizing
-            <ulink url='&YOCTO_DOCS_REF_URL;#metadata'>Metadata</ulink> into
-            multiple layers.
-            Layers allow you to isolate different types of customizations from
-            each other.
-            For introductory information on the Yocto Project Layer Model,
-            see the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#the-yocto-project-layer-model'>The Yocto Project Layer Model</ulink>"
-            section in the Yocto Project Overview and Concepts Manual.
-        </para>
-
-        <section id='creating-your-own-layer'>
-            <title>Creating Your Own Layer</title>
-
-            <para>
-                It is very easy to create your own layers to use with the
-                OpenEmbedded build system.
-                The Yocto Project ships with tools that speed up creating
-                layers.
-                This section describes the steps you perform by hand to create
-                layers so that you can better understand them.
-                For information about the layer-creation tools, see the
-                "<ulink url='&YOCTO_DOCS_BSP_URL;#creating-a-new-bsp-layer-using-the-bitbake-layers-script'>Creating a New BSP Layer Using the <filename>bitbake-layers</filename> Script</ulink>"
-                section in the Yocto Project Board Support Package (BSP)
-                Developer's Guide and the
-                "<link linkend='creating-a-general-layer-using-the-bitbake-layers-script'>Creating a General Layer Using the <filename>bitbake-layers</filename> Script</link>"
-                section further down in this manual.
-            </para>
-
-            <para>
-                Follow these general steps to create your layer without using
-                tools:
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Check Existing Layers:</emphasis>
-                        Before creating a new layer, you should be sure someone
-                        has not already created a layer containing the Metadata
-                        you need.
-                        You can see the
-                        <ulink url='http://layers.openembedded.org/layerindex/layers/'>OpenEmbedded Metadata Index</ulink>
-                        for a list of layers from the OpenEmbedded community
-                        that can be used in the Yocto Project.
-                        You could find a layer that is identical or close to
-                        what you need.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Create a Directory:</emphasis>
-                        Create the directory for your layer.
-                        When you create the layer, be sure to create the
-                        directory in an area not associated with the
-                        Yocto Project
-                        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                        (e.g. the cloned <filename>poky</filename> repository).
-                        </para>
-
-                        <para>While not strictly required, prepend the name of
-                        the directory with the string "meta-".
-                        For example:
-                        <literallayout class='monospaced'>
-     meta-mylayer
-     meta-GUI_xyz
-     meta-mymachine
-                        </literallayout>
-                        With rare exceptions, a layer's name follows this
-                        form:
-                        <literallayout class='monospaced'>
-     meta-<replaceable>root_name</replaceable>
-                        </literallayout>
-                        Following this layer naming convention can
-                        save you trouble later when tools, components, or
-                        variables "assume" your layer name begins with "meta-".
-                        A notable example is in configuration files as
-                        shown in the following step where layer names without
-                        the "meta-" string are appended
-                        to several variables used in the configuration.
-                        </para></listitem>
-                    <listitem><para id='dev-layer-config-file-description'>
-                        <emphasis>Create a Layer Configuration File:</emphasis>
-                        Inside your new layer folder, you need to create a
-                        <filename>conf/layer.conf</filename> file.
-                        It is easiest to take an existing layer configuration
-                        file and copy that to your layer's
-                        <filename>conf</filename> directory and then modify the
-                        file as needed.</para>
-
-                        <para>The
-                        <filename>meta-yocto-bsp/conf/layer.conf</filename> file
-                        in the Yocto Project
-                        <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta-yocto-bsp/conf'>Source Repositories</ulink>
-                        demonstrates the required syntax.
-                        For your layer, you need to replace "yoctobsp" with
-                        a unique identifier for your layer (e.g. "machinexyz"
-                        for a layer named "meta-machinexyz"):
-                        <literallayout class='monospaced'>
-     # We have a conf and classes directory, add to BBPATH
-     BBPATH .= ":${LAYERDIR}"
-
-     # We have recipes-* directories, add to BBFILES
-     BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \
-                 ${LAYERDIR}/recipes-*/*/*.bbappend"
-
-     BBFILE_COLLECTIONS += "yoctobsp"
-     BBFILE_PATTERN_yoctobsp = "^${LAYERDIR}/"
-     BBFILE_PRIORITY_yoctobsp = "5"
-     LAYERVERSION_yoctobsp = "4"
-     LAYERSERIES_COMPAT_yoctobsp = "&DISTRO_NAME_NO_CAP;"
-                        </literallayout>
-                        Following is an explanation of the layer configuration
-                        file:
-                        <itemizedlist>
-                            <listitem><para>
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-BBPATH'><filename>BBPATH</filename></ulink>:
-                                Adds the layer's root directory to BitBake's
-                                search path.
-                                Through the use of the
-                                <filename>BBPATH</filename> variable, BitBake
-                                locates class files
-                                (<filename>.bbclass</filename>),
-                                configuration files, and files that are
-                                included with <filename>include</filename> and
-                                <filename>require</filename> statements.
-                                For these cases, BitBake uses the first file
-                                that matches the name found in
-                                <filename>BBPATH</filename>.
-                                This is similar to the way the
-                                <filename>PATH</filename> variable is used for
-                                binaries.
-                                It is recommended, therefore, that you use
-                                unique class and configuration filenames in
-                                your custom layer.
-                                </para></listitem>
-                            <listitem><para>
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILES'><filename>BBFILES</filename></ulink>:
-                                Defines the location for all recipes in the
-                                layer.
-                                </para></listitem>
-                            <listitem><para>
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILE_COLLECTIONS'><filename>BBFILE_COLLECTIONS</filename></ulink>:
-                                Establishes the current layer through a
-                                unique identifier that is used throughout the
-                                OpenEmbedded build system to refer to the layer.
-                                In this example, the identifier "yoctobsp" is
-                                the representation for the container layer
-                                named "meta-yocto-bsp".
-                                </para></listitem>
-                            <listitem><para>
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILE_PATTERN'><filename>BBFILE_PATTERN</filename></ulink>:
-                                Expands immediately during parsing to
-                                provide the directory of the layer.
-                                </para></listitem>
-                            <listitem><para>
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILE_PRIORITY'><filename>BBFILE_PRIORITY</filename></ulink>:
-                                Establishes a priority to use for
-                                recipes in the layer when the OpenEmbedded build
-                                finds recipes of the same name in different
-                                layers.
-                                </para></listitem>
-                            <listitem><para>
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-LAYERVERSION'><filename>LAYERVERSION</filename></ulink>:
-                                Establishes a version number for the layer.
-                                You can use this version number to specify this
-                                exact version of the layer as a dependency when
-                                using the
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-LAYERDEPENDS'><filename>LAYERDEPENDS</filename></ulink>
-                                variable.
-                                </para></listitem>
-                            <listitem><para>
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-LAYERDEPENDS'><filename>LAYERDEPENDS</filename></ulink>:
-                                Lists all layers on which this layer depends (if any).
-                                </para></listitem>
-                            <listitem><para>
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-LAYERSERIES_COMPAT'><filename>LAYERSERIES_COMPAT</filename></ulink>:
-                                Lists the
-                                <ulink url='&YOCTO_WIKI_URL;/wiki/Releases'>Yocto Project</ulink>
-                                releases for which the current version is
-                                compatible.
-                                This variable is a good way to indicate if
-                                your particular layer is current.
-                                </para></listitem>
-                        </itemizedlist>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Add Content:</emphasis>
-                        Depending on the type of layer, add the content.
-                        If the layer adds support for a machine, add the machine
-                        configuration in a <filename>conf/machine/</filename>
-                        file within the layer.
-                        If the layer adds distro policy, add the distro
-                        configuration in a <filename>conf/distro/</filename>
-                        file within the layer.
-                        If the layer introduces new recipes, put the recipes
-                        you need in <filename>recipes-*</filename>
-                        subdirectories within the layer.
-                        <note>
-                            For an explanation of layer hierarchy that
-                            is compliant with the Yocto Project, see
-                            the
-                            "<ulink url='&YOCTO_DOCS_BSP_URL;#bsp-filelayout'>Example Filesystem Layout</ulink>"
-                            section in the Yocto Project Board
-                            Support Package (BSP) Developer's Guide.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Optionally Test for Compatibility:</emphasis>
-                        If you want permission to use the Yocto Project
-                        Compatibility logo with your layer or application that
-                        uses your layer, perform the steps to apply for
-                        compatibility.
-                        See the
-                        "<link linkend='making-sure-your-layer-is-compatible-with-yocto-project'>Making Sure Your Layer is Compatible With Yocto Project</link>"
-                        section for more information.
-                        </para></listitem>
-                </orderedlist>
-            </para>
-        </section>
-
-        <section id='best-practices-to-follow-when-creating-layers'>
-            <title>Following Best Practices When Creating Layers</title>
-
-            <para>
-                To create layers that are easier to maintain and that will
-                not impact builds for other machines, you should consider the
-                information in the following list:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>Avoid "Overlaying" Entire Recipes from Other Layers in Your Configuration:</emphasis>
-                        In other words, do not copy an entire recipe into your
-                        layer and then modify it.
-                        Rather, use an append file
-                        (<filename>.bbappend</filename>) to override only those
-                        parts of the original recipe you need to modify.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Avoid Duplicating Include Files:</emphasis>
-                        Use append files (<filename>.bbappend</filename>)
-                        for each recipe that uses an include file.
-                        Or, if you are introducing a new recipe that requires
-                        the included file, use the path relative to the
-                        original layer directory to refer to the file.
-                        For example, use
-                        <filename>require recipes-core/</filename><replaceable>package</replaceable><filename>/</filename><replaceable>file</replaceable><filename>.inc</filename>
-                        instead of
-                        <filename>require </filename><replaceable>file</replaceable><filename>.inc</filename>.
-                        If you're finding you have to overlay the include file,
-                        it could indicate a deficiency in the include file in
-                        the layer to which it originally belongs.
-                        If this is the case, you should try to address that
-                        deficiency instead of overlaying the include file.
-                        For example, you could address this by getting the
-                        maintainer of the include file to add a variable or
-                        variables to make it easy to override the parts needing
-                        to be overridden.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Structure Your Layers:</emphasis>
-                        Proper use of overrides within append files and
-                        placement of machine-specific files within your layer
-                        can ensure that a build is not using the wrong Metadata
-                        and negatively impacting a build for a different
-                        machine.
-                        Following are some examples:
-                        <itemizedlist>
-                            <listitem><para>
-                                <emphasis>Modify Variables to Support a
-                                Different Machine:</emphasis>
-                                Suppose you have a layer named
-                                <filename>meta-one</filename> that adds support
-                                for building machine "one".
-                                To do so, you use an append file named
-                                <filename>base-files.bbappend</filename> and
-                                create a dependency on "foo" by altering the
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPENDS'><filename>DEPENDS</filename></ulink>
-                                variable:
-                                <literallayout class='monospaced'>
-     DEPENDS = "foo"
-                                </literallayout>
-                                The dependency is created during any build that
-                                includes the layer
-                                <filename>meta-one</filename>.
-                                However, you might not want this dependency
-                                for all machines.
-                                For example, suppose you are building for
-                                machine "two" but your
-                                <filename>bblayers.conf</filename> file has the
-                                <filename>meta-one</filename> layer included.
-                                During the build, the
-                                <filename>base-files</filename> for machine
-                                "two" will also have the dependency on
-                                <filename>foo</filename>.</para>
-                                <para>To make sure your changes apply only when
-                                building machine "one", use a machine override
-                                with the <filename>DEPENDS</filename> statement:
-                                <literallayout class='monospaced'>
-     DEPENDS_one = "foo"
-                                </literallayout>
-                                You should follow the same strategy when using
-                                <filename>_append</filename> and
-                                <filename>_prepend</filename> operations:
-                                <literallayout class='monospaced'>
-     DEPENDS_append_one = " foo"
-     DEPENDS_prepend_one = "foo "
-                                </literallayout>
-                                As an actual example, here's a snippet from the
-                                generic kernel include file
-                                <filename>linux-yocto.inc</filename>,
-                                wherein the kernel compile and link options are
-                                adjusted in the case of a subset of the supported
-                                architectures:
-                                <literallayout class='monospaced'>
-     DEPENDS_append_aarch64 = " libgcc"
-     KERNEL_CC_append_aarch64 = " ${TOOLCHAIN_OPTIONS}"
-     KERNEL_LD_append_aarch64 = " ${TOOLCHAIN_OPTIONS}"
-
-     DEPENDS_append_nios2 = " libgcc"
-     KERNEL_CC_append_nios2 = " ${TOOLCHAIN_OPTIONS}"
-     KERNEL_LD_append_nios2 = " ${TOOLCHAIN_OPTIONS}"
-
-     DEPENDS_append_arc = " libgcc"
-     KERNEL_CC_append_arc = " ${TOOLCHAIN_OPTIONS}"
-     KERNEL_LD_append_arc = " ${TOOLCHAIN_OPTIONS}"
-
-     KERNEL_FEATURES_append_qemuall=" features/debug/printk.scc"
-                                </literallayout>
-                                <note>
-                                    Avoiding "+=" and "=+" and using
-                                    machine-specific
-                                    <filename>_append</filename>
-                                    and <filename>_prepend</filename> operations
-                                    is recommended as well.
-                                </note>
-                                </para></listitem>
-                            <listitem><para>
-                                <emphasis>Place Machine-Specific Files in
-                                Machine-Specific Locations:</emphasis>
-                                When you have a base recipe, such as
-                                <filename>base-files.bb</filename>, that
-                                contains a
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                                statement to a file, you can use an append file
-                                to cause the build to use your own version of
-                                the file.
-                                For example, an append file in your layer at
-                                <filename>meta-one/recipes-core/base-files/base-files.bbappend</filename>
-                                could extend
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESPATH'><filename>FILESPATH</filename></ulink>
-                                using
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></ulink>
-                                as follows:
-                                <literallayout class='monospaced'>
-     FILESEXTRAPATHS_prepend := "${THISDIR}/${BPN}:"
-                                </literallayout>
-                                The build for machine "one" will pick up your
-                                machine-specific file as long as you have the
-                                file in
-                                <filename>meta-one/recipes-core/base-files/base-files/</filename>.
-                                However, if you are building for a different
-                                machine and the
-                                <filename>bblayers.conf</filename> file includes
-                                the <filename>meta-one</filename> layer and
-                                the location of your machine-specific file is
-                                the first location where that file is found
-                                according to <filename>FILESPATH</filename>,
-                                builds for all machines will also use that
-                                machine-specific file.</para>
-                                <para>You can make sure that a machine-specific
-                                file is used for a particular machine by putting
-                                the file in a subdirectory specific to the
-                                machine.
-                                For example, rather than placing the file in
-                                <filename>meta-one/recipes-core/base-files/base-files/</filename>
-                                as shown above, put it in
-                                <filename>meta-one/recipes-core/base-files/base-files/one/</filename>.
-                                Not only does this make sure the file is used
-                                only when building for machine "one", but the
-                                build process locates the file more quickly.</para>
-                                <para>In summary, you need to place all files
-                                referenced from <filename>SRC_URI</filename>
-                                in a machine-specific subdirectory within the
-                                layer in order to restrict those files to
-                                machine-specific builds.
-                                </para></listitem>
-                        </itemizedlist>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Perform Steps to Apply for Yocto Project Compatibility:</emphasis>
-                        If you want permission to use the
-                        Yocto Project Compatibility logo with your layer
-                        or application that uses your layer, perform the
-                        steps to apply for compatibility.
-                        See the
-                        "<link linkend='making-sure-your-layer-is-compatible-with-yocto-project'>Making Sure Your Layer is Compatible With Yocto Project</link>"
-                        section for more information.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Follow the Layer Naming Convention:</emphasis>
-                        Store custom layers in a Git repository that use the
-                        <filename>meta-<replaceable>layer_name</replaceable></filename>
-                        format.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Group Your Layers Locally:</emphasis>
-                        Clone your repository alongside other cloned
-                        <filename>meta</filename> directories from the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='making-sure-your-layer-is-compatible-with-yocto-project'>
-            <title>Making Sure Your Layer is Compatible With Yocto Project</title>
-
-            <para>
-                When you create a layer used with the Yocto Project, it is
-                advantageous to make sure that the layer interacts well with
-                existing Yocto Project layers (i.e. the layer is compatible
-                with the Yocto Project).
-                Ensuring compatibility makes the layer easy to be consumed
-                by others in the Yocto Project community and could allow you
-                permission to use the Yocto Project Compatible Logo.
-                <note>
-                    Only Yocto Project member organizations are permitted to
-                    use the Yocto Project Compatible Logo.
-                    The logo is not available for general use.
-                    For information on how to become a Yocto Project member
-                    organization, see the
-                    <ulink url='&YOCTO_HOME_URL;'>Yocto Project Website</ulink>.
-                </note>
-            </para>
-
-            <para>
-                The Yocto Project Compatibility Program consists of a layer
-                application process that requests permission to use the Yocto
-                Project Compatibility Logo for your layer and application.
-                The process consists of two parts:
-                <orderedlist>
-                    <listitem><para>
-                        Successfully passing a script
-                        (<filename>yocto-check-layer</filename>) that
-                        when run against your layer, tests it against
-                        constraints based on experiences of how layers have
-                        worked in the real world and where pitfalls have been
-                        found.
-                        Getting a "PASS" result from the script is required for
-                        successful compatibility registration.
-                        </para></listitem>
-                    <listitem><para>
-                        Completion of an application acceptance form, which
-                        you can find at
-                        <ulink url='https://www.yoctoproject.org/webform/yocto-project-compatible-registration'></ulink>.
-                        </para></listitem>
-                </orderedlist>
-            </para>
-
-            <para>
-                To be granted permission to use the logo, you need to satisfy
-                the following:
-                <itemizedlist>
-                    <listitem><para>
-                        Be able to check the box indicating that you
-                        got a "PASS" when running the script against your
-                        layer.
-                        </para></listitem>
-                    <listitem><para>
-                        Answer "Yes" to the questions on the form or have an
-                        acceptable explanation for any questions answered "No".
-                        </para></listitem>
-                    <listitem><para>
-                        Be a Yocto Project Member Organization.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                The remainder of this section presents information on the
-                registration form and on the
-                <filename>yocto-check-layer</filename> script.
-            </para>
-
-            <section id='yocto-project-compatible-program-application'>
-                <title>Yocto Project Compatible Program Application</title>
-
-                <para>
-                    Use the form to apply for your layer's approval.
-                    Upon successful application, you can use the Yocto
-                    Project Compatibility Logo with your layer and the
-                    application that uses your layer.
-                </para>
-
-                <para>
-                    To access the form, use this link:
-                    <ulink url='https://www.yoctoproject.org/webform/yocto-project-compatible-registration'></ulink>.
-                    Follow the instructions on the form to complete your
-                    application.
-                </para>
-
-                <para>
-                    The application consists of the following sections:
-                    <itemizedlist>
-                        <listitem><para>
-                            <emphasis>Contact Information:</emphasis>
-                            Provide your contact information as the fields
-                            require.
-                            Along with your information, provide the
-                            released versions of the Yocto Project for which
-                            your layer is compatible.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Acceptance Criteria:</emphasis>
-                            Provide "Yes" or "No" answers for each of the
-                            items in the checklist.
-                            Space exists at the bottom of the form for any
-                            explanations for items for which you answered "No".
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Recommendations:</emphasis>
-                            Provide answers for the questions regarding Linux
-                            kernel use and build success.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-
-            <section id='yocto-check-layer-script'>
-                <title><filename>yocto-check-layer</filename> Script</title>
-
-                <para>
-                    The <filename>yocto-check-layer</filename> script
-                    provides you a way to assess how compatible your layer is
-                    with the Yocto Project.
-                    You should run this script prior to using the form to
-                    apply for compatibility as described in the previous
-                    section.
-                    You need to achieve a "PASS" result in order to have
-                    your application form successfully processed.
-                </para>
-
-                <para>
-                    The script divides tests into three areas: COMMON, BSP,
-                    and DISTRO.
-                    For example, given a distribution layer (DISTRO), the
-                    layer must pass both the COMMON and DISTRO related tests.
-                    Furthermore, if your layer is a BSP layer, the layer must
-                    pass the COMMON and BSP set of tests.
-                </para>
-
-                <para>
-                    To execute the script, enter the following commands from
-                    your build directory:
-                    <literallayout class='monospaced'>
-     $ source oe-init-build-env
-     $ yocto-check-layer <replaceable>your_layer_directory</replaceable>
-                    </literallayout>
-                    Be sure to provide the actual directory for your layer
-                    as part of the command.
-                </para>
-
-                <para>
-                    Entering the command causes the script to determine the
-                    type of layer and then to execute a set of specific
-                    tests against the layer.
-                    The following list overviews the test:
-                    <itemizedlist>
-                        <listitem><para>
-                            <filename>common.test_readme</filename>:
-                            Tests if a <filename>README</filename> file
-                            exists in the layer and the file is not empty.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>common.test_parse</filename>:
-                            Tests to make sure that BitBake can parse the
-                            files without error (i.e.
-                            <filename>bitbake -p</filename>).
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>common.test_show_environment</filename>:
-                            Tests that the global or per-recipe environment
-                            is in order without errors (i.e.
-                            <filename>bitbake -e</filename>).
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>common.test_world</filename>:
-                            Verifies that <filename>bitbake world</filename> works.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>common.test_signatures</filename>:
-                            Tests to be sure that BSP and DISTRO layers do not
-                            come with recipes that change signatures.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>common.test_layerseries_compat</filename>:
-                            Verifies layer compatibility is set properly.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>bsp.test_bsp_defines_machines</filename>:
-                            Tests if a BSP layer has machine configurations.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>bsp.test_bsp_no_set_machine</filename>:
-                            Tests to ensure a BSP layer does not set the
-                            machine when the layer is added.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>bsp.test_machine_world</filename>:
-                            Verifies that <filename>bitbake world</filename>
-                            works regardless of which machine is selected.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>bsp.test_machine_signatures</filename>:
-                            Verifies that building for a particular machine
-                            affects only the signature of tasks specific to that
-                            machine.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>distro.test_distro_defines_distros</filename>:
-                            Tests if a DISTRO layer has distro configurations.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>distro.test_distro_no_set_distros</filename>:
-                            Tests to ensure a DISTRO layer does not set the
-                            distribution when the layer is added.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-        </section>
-
-        <section id='enabling-your-layer'>
-            <title>Enabling Your Layer</title>
-
-            <para>
-                Before the OpenEmbedded build system can use your new layer,
-                you need to enable it.
-                To enable your layer, simply add your layer's path to the
-                <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-BBLAYERS'>BBLAYERS</ulink></filename>
-                variable in your <filename>conf/bblayers.conf</filename> file,
-                which is found in the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                The following example shows how to enable a layer named
-                <filename>meta-mylayer</filename>:
-                <literallayout class='monospaced'>
-     # POKY_BBLAYERS_CONF_VERSION is increased each time build/conf/bblayers.conf
-     # changes incompatibly
-     POKY_BBLAYERS_CONF_VERSION = "2"
-
-     BBPATH = "${TOPDIR}"
-     BBFILES ?= ""
-
-     BBLAYERS ?= " \
-       /home/<replaceable>user</replaceable>/poky/meta \
-       /home/<replaceable>user</replaceable>/poky/meta-poky \
-       /home/<replaceable>user</replaceable>/poky/meta-yocto-bsp \
-       /home/<replaceable>user</replaceable>/poky/meta-mylayer \
-       "
-                </literallayout>
-            </para>
-
-            <para>
-                BitBake parses each <filename>conf/layer.conf</filename> file
-                from the top down as specified in the
-                <filename>BBLAYERS</filename> variable
-                within the <filename>conf/bblayers.conf</filename> file.
-                During the processing of each
-                <filename>conf/layer.conf</filename> file, BitBake adds the
-                recipes, classes and configurations contained within the
-                particular layer to the source directory.
-            </para>
-        </section>
-
-        <section id='using-bbappend-files'>
-            <title>Using .bbappend Files in Your Layer</title>
-
-            <para>
-                A recipe that appends Metadata to another recipe is called a
-                BitBake append file.
-                A BitBake append file uses the <filename>.bbappend</filename>
-                file type suffix, while the corresponding recipe to which
-                Metadata is being appended uses the <filename>.bb</filename>
-                file type suffix.
-            </para>
-
-            <para>
-                You can use a <filename>.bbappend</filename> file in your
-                layer to make additions or changes to the content of another
-                layer's recipe without having to copy the other layer's
-                recipe into your layer.
-                Your <filename>.bbappend</filename> file resides in your layer,
-                while the main <filename>.bb</filename> recipe file to
-                which you are appending Metadata resides in a different layer.
-            </para>
-
-            <para>
-                Being able to append information to an existing recipe not only
-                avoids duplication, but also automatically applies recipe
-                changes from a different layer into your layer.
-                If you were copying recipes, you would have to manually merge
-                changes as they occur.
-            </para>
-
-            <para>
-                When you create an append file, you must use the same root
-                name as the corresponding recipe file.
-                For example, the append file
-                <filename>someapp_&DISTRO;.bbappend</filename> must apply to
-                <filename>someapp_&DISTRO;.bb</filename>.
-                This means the original recipe and append file names are
-                version number-specific.
-                If the corresponding recipe is renamed to update to a newer
-                version, you must also rename and possibly update
-                the corresponding <filename>.bbappend</filename> as well.
-                During the build process, BitBake displays an error on starting
-                if it detects a <filename>.bbappend</filename> file that does
-                not have a corresponding recipe with a matching name.
-                See the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-BB_DANGLINGAPPENDS_WARNONLY'><filename>BB_DANGLINGAPPENDS_WARNONLY</filename></ulink>
-                variable for information on how to handle this error.
-            </para>
-
-            <para>
-                As an example, consider the main formfactor recipe and a
-                corresponding formfactor append file both from the
-                <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>.
-                Here is the main formfactor recipe, which is named
-                <filename>formfactor_0.0.bb</filename> and located in the
-                "meta" layer at
-                <filename>meta/recipes-bsp/formfactor</filename>:
-                <literallayout class='monospaced'>
-     SUMMARY = "Device formfactor information"
-     SECTION = "base"
-     LICENSE = "MIT"
-     LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
-     PR = "r45"
-
-     SRC_URI = "file://config file://machconfig"
-     S = "${WORKDIR}"
-
-     PACKAGE_ARCH = "${MACHINE_ARCH}"
-     INHIBIT_DEFAULT_DEPS = "1"
-
-     do_install() {
-	     # Install file only if it has contents
-             install -d ${D}${sysconfdir}/formfactor/
-             install -m 0644 ${S}/config ${D}${sysconfdir}/formfactor/
-	     if [ -s "${S}/machconfig" ]; then
-	             install -m 0644 ${S}/machconfig ${D}${sysconfdir}/formfactor/
-	     fi
-     }                </literallayout>
-                In the main recipe, note the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                variable, which tells the OpenEmbedded build system where to
-                find files during the build.
-            </para>
-
-            <para>
-                Following is the append file, which is named
-                <filename>formfactor_0.0.bbappend</filename> and is from the
-                Raspberry Pi BSP Layer named
-                <filename>meta-raspberrypi</filename>.
-                The file is in the layer at
-                <filename>recipes-bsp/formfactor</filename>:
-                <literallayout class='monospaced'>
-     FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-                </literallayout>
-            </para>
-
-            <para>
-                By default, the build system uses the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESPATH'><filename>FILESPATH</filename></ulink>
-                variable to locate files.
-                This append file extends the locations by setting the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></ulink>
-                variable.
-                Setting this variable in the <filename>.bbappend</filename>
-                file is the most reliable and recommended method for adding
-                directories to the search path used by the build system
-                to find files.
-            </para>
-
-            <para>
-                The statement in this example extends the directories to
-                include
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-THISDIR'><filename>THISDIR</filename></ulink><filename>}/${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink><filename>}</filename>,
-                which resolves to a directory named
-                <filename>formfactor</filename> in the same directory
-                in which the append file resides (i.e.
-                <filename>meta-raspberrypi/recipes-bsp/formfactor</filename>.
-                This implies that you must have the supporting directory
-                structure set up that will contain any files or patches you
-                will be including from the layer.
-            </para>
-
-            <para>
-                Using the immediate expansion assignment operator
-                <filename>:=</filename> is important because of the reference
-                to <filename>THISDIR</filename>.
-                The trailing colon character is important as it ensures that
-                items in the list remain colon-separated.
-                <note>
-                    <para>
-                        BitBake automatically defines the
-                        <filename>THISDIR</filename> variable.
-                        You should never set this variable yourself.
-                        Using "_prepend" as part of the
-                        <filename>FILESEXTRAPATHS</filename> ensures your path
-                        will be searched prior to other paths in the final
-                        list.
-                    </para>
-
-                    <para>
-                        Also, not all append files add extra files.
-                        Many append files simply exist to add build options
-                        (e.g. <filename>systemd</filename>).
-                        For these cases, your append file would not even
-                        use the <filename>FILESEXTRAPATHS</filename> statement.
-                    </para>
-                </note>
-            </para>
-        </section>
-
-        <section id='prioritizing-your-layer'>
-            <title>Prioritizing Your Layer</title>
-
-            <para>
-                Each layer is assigned a priority value.
-                Priority values control which layer takes precedence if there
-                are recipe files with the same name in multiple layers.
-                For these cases, the recipe file from the layer with a higher
-                priority number takes precedence.
-                Priority values also affect the order in which multiple
-                <filename>.bbappend</filename> files for the same recipe are
-                applied.
-                You can either specify the priority manually, or allow the
-                build system to calculate it based on the layer's dependencies.
-            </para>
-
-            <para>
-                To specify the layer's priority manually, use the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILE_PRIORITY'><filename>BBFILE_PRIORITY</filename></ulink>
-                variable and append the layer's root name:
-                <literallayout class='monospaced'>
-     BBFILE_PRIORITY_mylayer = "1"
-                </literallayout>
-            </para>
-
-            <note>
-                <para>It is possible for a recipe with a lower version number
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>
-                in a layer that has a higher priority to take precedence.</para>
-                <para>Also, the layer priority does not currently affect the
-                precedence order of <filename>.conf</filename>
-                or <filename>.bbclass</filename> files.
-                Future versions of BitBake might address this.</para>
-            </note>
-        </section>
-
-        <section id='managing-layers'>
-            <title>Managing Layers</title>
-
-            <para>
-                You can use the BitBake layer management tool
-                <filename>bitbake-layers</filename> to provide a view
-                into the structure of recipes across a multi-layer project.
-                Being able to generate output that reports on configured layers
-                with their paths and priorities and on
-                <filename>.bbappend</filename> files and their applicable
-                recipes can help to reveal potential problems.
-            </para>
-
-            <para>
-                For help on the BitBake layer management tool, use the
-                following command:
-                <literallayout class='monospaced'>
-     $ bitbake-layers --help
-     NOTE: Starting bitbake server...
-     usage: bitbake-layers [-d] [-q] [-F] [--color COLOR] [-h] &lt;subcommand&gt; ...
-
-     BitBake layers utility
-
-     optional arguments:
-       -d, --debug           Enable debug output
-       -q, --quiet           Print only errors
-       -F, --force           Force add without recipe parse verification
-       --color COLOR         Colorize output (where COLOR is auto, always, never)
-       -h, --help            show this help message and exit
-
-     subcommands:
-       &lt;subcommand&gt;
-         show-layers         show current configured layers.
-         show-overlayed      list overlayed recipes (where the same recipe exists
-                             in another layer)
-         show-recipes        list available recipes, showing the layer they are
-                             provided by
-         show-appends        list bbappend files and recipe files they apply to
-         show-cross-depends  Show dependencies between recipes that cross layer
-                             boundaries.
-         add-layer           Add one or more layers to bblayers.conf.
-         remove-layer        Remove one or more layers from bblayers.conf.
-         flatten             flatten layer configuration into a separate output
-                             directory.
-         layerindex-fetch    Fetches a layer from a layer index along with its
-                             dependent layers, and adds them to conf/bblayers.conf.
-         layerindex-show-depends
-                             Find layer dependencies from layer index.
-         create-layer        Create a basic layer
-
-     Use bitbake-layers &lt;subcommand&gt; --help to get help on a specific command
-                </literallayout>
-            </para>
-
-            <para>
-                The following list describes the available commands:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis><filename>help:</filename></emphasis>
-                        Displays general help or help on a specified command.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>show-layers:</filename></emphasis>
-                        Shows the current configured layers.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>show-overlayed:</filename></emphasis>
-                        Lists overlayed recipes.
-                        A recipe is overlayed when a recipe with the same name
-                        exists in another layer that has a higher layer
-                        priority.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>show-recipes:</filename></emphasis>
-                        Lists available recipes and the layers that provide them.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>show-appends:</filename></emphasis>
-                        Lists <filename>.bbappend</filename> files and the
-                        recipe files to which they apply.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>show-cross-depends:</filename></emphasis>
-                        Lists dependency relationships between recipes that
-                        cross layer boundaries.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>add-layer:</filename></emphasis>
-                        Adds a layer to <filename>bblayers.conf</filename>.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>remove-layer:</filename></emphasis>
-                        Removes a layer from <filename>bblayers.conf</filename>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>flatten:</filename></emphasis>
-                        Flattens the layer configuration into a separate output
-                        directory.
-                        Flattening your layer configuration builds a "flattened"
-                        directory that contains the contents of all layers,
-                        with any overlayed recipes removed and any
-                        <filename>.bbappend</filename> files appended to the
-                        corresponding recipes.
-                        You might have to perform some manual cleanup of the
-                        flattened layer as follows:
-                        <itemizedlist>
-                            <listitem><para>
-                                Non-recipe files (such as patches)
-                                are overwritten.
-                                The flatten command shows a warning for these
-                                files.
-                                </para></listitem>
-                            <listitem><para>
-                                Anything beyond the normal layer
-                                setup has been added to the
-                                <filename>layer.conf</filename> file.
-                                Only the lowest priority layer's
-                                <filename>layer.conf</filename> is used.
-                                </para></listitem>
-                            <listitem><para>
-                                Overridden and appended items from
-                                <filename>.bbappend</filename> files need to be
-                                cleaned up.
-                                The contents of each
-                                <filename>.bbappend</filename> end up in the
-                                flattened recipe.
-                                However, if there are appended or changed
-                                variable values, you need to tidy these up
-                                yourself.
-                                Consider the following example.
-                                Here, the <filename>bitbake-layers</filename>
-                                command adds the line
-                                <filename>#### bbappended ...</filename> so that
-                                you know where the following lines originate:
-                                <literallayout class='monospaced'>
-     ...
-     DESCRIPTION = "A useful utility"
-     ...
-     EXTRA_OECONF = "--enable-something"
-     ...
-
-     #### bbappended from meta-anotherlayer ####
-
-     DESCRIPTION = "Customized utility"
-     EXTRA_OECONF += "--enable-somethingelse"
-                                </literallayout>
-                                Ideally, you would tidy up these utilities as
-                                follows:
-                                <literallayout class='monospaced'>
-     ...
-     DESCRIPTION = "Customized utility"
-     ...
-     EXTRA_OECONF = "--enable-something --enable-somethingelse"
-     ...
-                                </literallayout>
-                                </para></listitem>
-                        </itemizedlist>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>layerindex-fetch</filename>:</emphasis>
-                        Fetches a layer from a layer index, along with its
-                        dependent layers, and adds the layers to the
-                        <filename>conf/bblayers.conf</filename> file.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>layerindex-show-depends</filename>:</emphasis>
-                        Finds layer dependencies from the layer index.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>create-layer</filename>:</emphasis>
-                        Creates a basic layer.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='creating-a-general-layer-using-the-bitbake-layers-script'>
-            <title>Creating a General Layer Using the <filename>bitbake-layers</filename> Script</title>
-
-            <para>
-                The <filename>bitbake-layers</filename> script with the
-                <filename>create-layer</filename> subcommand simplifies
-                creating a new general layer.
-                <note><title>Notes</title>
-                    <itemizedlist>
-                        <listitem><para>
-                            For information on BSP layers, see the
-                            "<ulink url='&YOCTO_DOCS_BSP_URL;#bsp-layers'>BSP Layers</ulink>"
-                            section in the Yocto Project Board Specific (BSP)
-                            Developer's Guide.
-                            </para></listitem>
-                        <listitem><para>
-                            In order to use a layer with the OpenEmbedded
-                            build system, you need to add the layer to your
-                            <filename>bblayers.conf</filename> configuration
-                            file.
-                            See the
-                            "<link linkend='adding-a-layer-using-the-bitbake-layers-script'>Adding a Layer Using the <filename>bitbake-layers</filename> Script</link>"
-                            section for more information.
-                            </para></listitem>
-                    </itemizedlist>
-                </note>
-                The default mode of the script's operation with this
-                subcommand is to create a layer with the following:
-                <itemizedlist>
-                    <listitem><para>A layer priority of 6.
-                        </para></listitem>
-                    <listitem><para>A <filename>conf</filename>
-                        subdirectory that contains a
-                        <filename>layer.conf</filename> file.
-                        </para></listitem>
-                    <listitem><para>
-                        A <filename>recipes-example</filename> subdirectory
-                        that contains a further subdirectory named
-                        <filename>example</filename>, which contains
-                        an <filename>example.bb</filename> recipe file.
-                        </para></listitem>
-                    <listitem><para>A <filename >COPYING.MIT</filename>,
-                        which is the license statement for the layer.
-                        The script assumes you want to use the MIT license,
-                        which is typical for most layers, for the contents of
-                        the layer itself.
-                        </para></listitem>
-                    <listitem><para>
-                        A <filename>README</filename> file, which is a file
-                        describing the contents of your new layer.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                In its simplest form, you can use the following command form
-                to create a layer.
-                The command creates a layer whose name corresponds to
-                <replaceable>your_layer_name</replaceable> in the current
-                directory:
-                <literallayout class='monospaced'>
-     $ bitbake-layers create-layer <replaceable>your_layer_name</replaceable>
-                </literallayout>
-                As an example, the following command creates a layer named
-                <filename>meta-scottrif</filename> in your home directory:
-                <literallayout class='monospaced'>
-     $ cd /usr/home
-     $ bitbake-layers create-layer meta-scottrif
-     NOTE: Starting bitbake server...
-     Add your new layer with 'bitbake-layers add-layer meta-scottrif'
-                </literallayout>
-            </para>
-
-            <para>
-                If you want to set the priority of the layer to other than the
-                default value of "6", you can either use the
-                <filename>&dash;&dash;priority</filename> option or you can
-                edit the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILE_PRIORITY'><filename>BBFILE_PRIORITY</filename></ulink>
-                value in the <filename>conf/layer.conf</filename> after the
-                script creates it.
-                Furthermore, if you want to give the example recipe file
-                some name other than the default, you can
-                use the
-                <filename>&dash;&dash;example-recipe-name</filename> option.
-            </para>
-
-            <para>
-                The easiest way to see how the
-                <filename>bitbake-layers create-layer</filename> command
-                works is to experiment with the script.
-                You can also read the usage information by entering the
-                following:
-                <literallayout class='monospaced'>
-     $ bitbake-layers create-layer --help
-     NOTE: Starting bitbake server...
-     usage: bitbake-layers create-layer [-h] [--priority PRIORITY]
-                                        [--example-recipe-name EXAMPLERECIPE]
-                                        layerdir
-
-     Create a basic layer
-
-     positional arguments:
-       layerdir              Layer directory to create
-
-     optional arguments:
-       -h, --help            show this help message and exit
-       --priority PRIORITY, -p PRIORITY
-                             Layer directory to create
-       --example-recipe-name EXAMPLERECIPE, -e EXAMPLERECIPE
-                             Filename of the example recipe
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='adding-a-layer-using-the-bitbake-layers-script'>
-            <title>Adding a Layer Using the <filename>bitbake-layers</filename> Script</title>
-
-            <para>
-                Once you create your general layer, you must add it to your
-                <filename>bblayers.conf</filename> file.
-                Adding the layer to this configuration file makes the
-                OpenEmbedded build system aware of your layer so that it can
-                search it for metadata.
-            </para>
-
-            <para>
-                Add your layer by using the
-                <filename>bitbake-layers add-layer</filename> command:
-                <literallayout class='monospaced'>
-     $ bitbake-layers add-layer <replaceable>your_layer_name</replaceable>
-                </literallayout>
-                Here is an example that adds a layer named
-                <filename>meta-scottrif</filename> to the configuration file.
-                Following the command that adds the layer is another
-                <filename>bitbake-layers</filename> command that shows the
-                layers that are in your <filename>bblayers.conf</filename>
-                file:
-                <literallayout class='monospaced'>
-     $ bitbake-layers add-layer meta-scottrif
-     NOTE: Starting bitbake server...
-     Parsing recipes: 100% |##########################################################| Time: 0:00:49
-     Parsing of 1441 .bb files complete (0 cached, 1441 parsed). 2055 targets, 56 skipped, 0 masked, 0 errors.
-     $ bitbake-layers show-layers
-     NOTE: Starting bitbake server...
-     layer                 path                                      priority
-     ==========================================================================
-     meta                  /home/scottrif/poky/meta                  5
-     meta-poky             /home/scottrif/poky/meta-poky             5
-     meta-yocto-bsp        /home/scottrif/poky/meta-yocto-bsp        5
-     workspace             /home/scottrif/poky/build/workspace       99
-     meta-scottrif         /home/scottrif/poky/build/meta-scottrif   6
-                </literallayout>
-                Adding the layer to this file enables the build system to
-                locate the layer during the build.
-                <note>
-                    During a build, the OpenEmbedded build system looks in
-                    the layers from the top of the list down to the bottom
-                    in that order.
-                </note>
-                </para>
-        </section>
-    </section>
-
-    <section id='usingpoky-extend-customimage'>
-        <title>Customizing Images</title>
-
-        <para>
-            You can customize images to satisfy particular requirements.
-            This section describes several methods and provides guidelines for each.
-        </para>
-
-        <section id='usingpoky-extend-customimage-localconf'>
-            <title>Customizing Images Using <filename>local.conf</filename></title>
-
-            <para>
-                Probably the easiest way to customize an image is to add a
-                package by way of the <filename>local.conf</filename>
-                configuration file.
-                Because it is limited to local use, this method generally only
-                allows you to add packages and is not as flexible as creating
-                your own customized image.
-                When you add packages using local variables this way, you need
-                to realize that these variable changes are in effect for every
-                build and consequently affect all images, which might not
-                be what you require.
-            </para>
-
-            <para>
-                To add a package to your image using the local configuration
-                file, use the
-                <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_INSTALL'>IMAGE_INSTALL</ulink></filename>
-                variable with the <filename>_append</filename> operator:
-                <literallayout class='monospaced'>
-     IMAGE_INSTALL_append = " strace"
-                </literallayout>
-                Use of the syntax is important - specifically, the space between
-                the quote and the package name, which is
-                <filename>strace</filename> in this example.
-                This space is required since the <filename>_append</filename>
-                operator does not add the space.
-            </para>
-
-            <para>
-                Furthermore, you must use <filename>_append</filename> instead
-                of the <filename>+=</filename> operator if you want to avoid
-                ordering issues.
-                The reason for this is because doing so unconditionally appends
-                to the variable and avoids ordering problems due to the
-                variable being set in image recipes and
-                <filename>.bbclass</filename> files with operators like
-                <filename>?=</filename>.
-                Using <filename>_append</filename> ensures the operation takes
-                affect.
-            </para>
-
-            <para>
-                As shown in its simplest use,
-                <filename>IMAGE_INSTALL_append</filename> affects all images.
-                It is possible to extend the syntax so that the variable
-                applies to a specific image only.
-                Here is an example:
-                <literallayout class='monospaced'>
-     IMAGE_INSTALL_append_pn-core-image-minimal = " strace"
-                </literallayout>
-                This example adds <filename>strace</filename> to the
-                <filename>core-image-minimal</filename> image only.
-            </para>
-
-            <para>
-                You can add packages using a similar approach through the
-                <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-CORE_IMAGE_EXTRA_INSTALL'>CORE_IMAGE_EXTRA_INSTALL</ulink></filename>
-                variable.
-                If you use this variable, only
-                <filename>core-image-*</filename> images are affected.
-            </para>
-        </section>
-
-        <section id='usingpoky-extend-customimage-imagefeatures'>
-            <title>Customizing Images Using Custom <filename>IMAGE_FEATURES</filename> and
-                <filename>EXTRA_IMAGE_FEATURES</filename></title>
-
-            <para>
-                Another method for customizing your image is to enable or
-                disable high-level image features by using the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></ulink>
-                and <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_IMAGE_FEATURES'><filename>EXTRA_IMAGE_FEATURES</filename></ulink>
-                variables.
-                Although the functions for both variables are nearly equivalent,
-                best practices dictate using <filename>IMAGE_FEATURES</filename>
-                from within a recipe and using
-                <filename>EXTRA_IMAGE_FEATURES</filename> from within
-                your <filename>local.conf</filename> file, which is found in the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-            </para>
-
-            <para>
-                To understand how these features work, the best reference is
-                <filename>meta/classes/core-image.bbclass</filename>.
-                This class lists out the available
-                <filename>IMAGE_FEATURES</filename> of which most map to
-                package groups while some, such as
-                <filename>debug-tweaks</filename> and
-                <filename>read-only-rootfs</filename>, resolve as general
-                configuration settings.
-            </para>
-
-            <para>
-                In summary, the file looks at the contents of the
-                <filename>IMAGE_FEATURES</filename> variable and then maps
-                or configures the feature accordingly.
-                Based on this information, the build system automatically
-                adds the appropriate packages or configurations to the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_INSTALL'><filename>IMAGE_INSTALL</filename></ulink>
-                variable.
-                Effectively, you are enabling extra features by extending the
-                class or creating a custom class for use with specialized image
-                <filename>.bb</filename> files.
-            </para>
-
-            <para>
-                Use the <filename>EXTRA_IMAGE_FEATURES</filename> variable
-                from within your local configuration file.
-                Using a separate area from which to enable features with
-                this variable helps you avoid overwriting the features in the
-                image recipe that are enabled with
-                <filename>IMAGE_FEATURES</filename>.
-                The value of <filename>EXTRA_IMAGE_FEATURES</filename> is added
-                to <filename>IMAGE_FEATURES</filename> within
-                <filename>meta/conf/bitbake.conf</filename>.
-            </para>
-
-            <para>
-                To illustrate how you can use these variables to modify your
-                image, consider an example that selects the SSH server.
-                The Yocto Project ships with two SSH servers you can use
-                with your images: Dropbear and OpenSSH.
-                Dropbear is a minimal SSH server appropriate for
-                resource-constrained environments, while OpenSSH is a
-                well-known standard SSH server implementation.
-                By default, the <filename>core-image-sato</filename> image
-                is configured to use Dropbear.
-                The <filename>core-image-full-cmdline</filename> and
-                <filename>core-image-lsb</filename> images both
-                include OpenSSH.
-                The <filename>core-image-minimal</filename> image does not
-                contain an SSH server.
-            </para>
-
-            <para>
-                You can customize your image and change these defaults.
-                Edit the <filename>IMAGE_FEATURES</filename> variable
-                in your recipe or use the
-                <filename>EXTRA_IMAGE_FEATURES</filename> in your
-                <filename>local.conf</filename> file so that it configures the
-                image you are working with to include
-                <filename>ssh-server-dropbear</filename> or
-                <filename>ssh-server-openssh</filename>.
-            </para>
-
-            <note>
-                See the
-                "<ulink url='&YOCTO_DOCS_REF_URL;#ref-images'>Images</ulink>"
-                section in the Yocto Project Reference Manual for a complete
-                list of image features that ship with the Yocto Project.
-            </note>
-        </section>
-
-        <section id='usingpoky-extend-customimage-custombb'>
-            <title>Customizing Images Using Custom .bb Files</title>
-
-            <para>
-                You can also customize an image by creating a custom recipe
-                that defines additional software as part of the image.
-                The following example shows the form for the two lines you need:
-                <literallayout class='monospaced'>
-     IMAGE_INSTALL = "packagegroup-core-x11-base package1 package2"
-
-     inherit core-image
-                </literallayout>
-            </para>
-
-            <para>
-                Defining the software using a custom recipe gives you total
-                control over the contents of the image.
-                It is important to use the correct names of packages in the
-                <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_INSTALL'>IMAGE_INSTALL</ulink></filename>
-                variable.
-                You must use the OpenEmbedded notation and not the Debian notation for the names
-                (e.g. <filename>glibc-dev</filename> instead of <filename>libc6-dev</filename>).
-            </para>
-
-            <para>
-                The other method for creating a custom image is to base it on an existing image.
-                For example, if you want to create an image based on <filename>core-image-sato</filename>
-                but add the additional package <filename>strace</filename> to the image,
-                copy the <filename>meta/recipes-sato/images/core-image-sato.bb</filename> to a
-                new <filename>.bb</filename> and add the following line to the end of the copy:
-                <literallayout class='monospaced'>
-     IMAGE_INSTALL += "strace"
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='usingpoky-extend-customimage-customtasks'>
-            <title>Customizing Images Using Custom Package Groups</title>
-
-            <para>
-                For complex custom images, the best approach for customizing
-                an image is to create a custom package group recipe that is
-                used to build the image or images.
-                A good example of a package group recipe is
-                <filename>meta/recipes-core/packagegroups/packagegroup-base.bb</filename>.
-            </para>
-
-            <para>
-                If you examine that recipe, you see that the
-                <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGES'>PACKAGES</ulink></filename>
-                variable lists the package group packages to produce.
-                The <filename>inherit packagegroup</filename> statement
-                sets appropriate default values and automatically adds
-                <filename>-dev</filename>, <filename>-dbg</filename>, and
-                <filename>-ptest</filename> complementary packages for each
-                package specified in the <filename>PACKAGES</filename>
-                statement.
-                <note>
-                    The <filename>inherit packagegroup</filename> line should be
-                    located near the top of the recipe, certainly before
-                    the <filename>PACKAGES</filename> statement.
-                </note>
-            </para>
-
-            <para>
-                For each package you specify in <filename>PACKAGES</filename>,
-                you can use
-                <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-RDEPENDS'>RDEPENDS</ulink></filename>
-                and
-                <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-RRECOMMENDS'>RRECOMMENDS</ulink></filename>
-                entries to provide a list of packages the parent task package
-                should contain.
-                You can see examples of these further down in the
-                <filename>packagegroup-base.bb</filename> recipe.
-            </para>
-
-            <para>
-                Here is a short, fabricated example showing the same basic
-                pieces for a hypothetical packagegroup defined in
-                <filename>packagegroup-custom.bb</filename>, where the
-                variable <filename>PN</filename> is the standard way to
-                abbreviate the reference to the full packagegroup name
-                <filename>packagegroup-custom</filename>:
-                <literallayout class='monospaced'>
-     DESCRIPTION = "My Custom Package Groups"
-
-     inherit packagegroup
-
-     PACKAGES = "\
-         ${PN}-apps \
-         ${PN}-tools \
-         "
-
-     RDEPENDS_${PN}-apps = "\
-         dropbear \
-         portmap \
-         psplash"
-
-     RDEPENDS_${PN}-tools = "\
-         oprofile \
-         oprofileui-server \
-         lttng-tools"
-
-     RRECOMMENDS_${PN}-tools = "\
-         kernel-module-oprofile"
-                </literallayout>
-            </para>
-
-            <para>
-                In the previous example, two package group packages are created with their dependencies and their
-                recommended package dependencies listed: <filename>packagegroup-custom-apps</filename>, and
-                <filename>packagegroup-custom-tools</filename>.
-                To build an image using these package group packages, you need to add
-                <filename>packagegroup-custom-apps</filename> and/or
-                <filename>packagegroup-custom-tools</filename> to
-                <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_INSTALL'>IMAGE_INSTALL</ulink></filename>.
-                For other forms of image dependencies see the other areas of this section.
-            </para>
-        </section>
-
-        <section id='usingpoky-extend-customimage-image-name'>
-            <title>Customizing an Image Hostname</title>
-
-            <para>
-                By default, the configured hostname (i.e.
-                <filename>/etc/hostname</filename>) in an image is the
-                same as the machine name.
-                For example, if
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
-                equals "qemux86", the configured hostname written to
-                <filename>/etc/hostname</filename> is "qemux86".
-            </para>
-
-            <para>
-                You can customize this name by altering the value of the
-                "hostname" variable in the
-                <filename>base-files</filename> recipe using either
-                an append file or a configuration file.
-                Use the following in an append file:
-                <literallayout class='monospaced'>
-     hostname="myhostname"
-                </literallayout>
-                Use the following in a configuration file:
-                <literallayout class='monospaced'>
-     hostname_pn-base-files = "myhostname"
-                </literallayout>
-            </para>
-
-            <para>
-                Changing the default value of the variable "hostname" can be
-                useful in certain situations.
-                For example, suppose you need to do extensive testing on an
-                image and you would like to easily identify the image
-                under test from existing images with typical default
-                hostnames.
-                In this situation, you could change the default hostname to
-                "testme", which results in all the images using the name
-                "testme".
-                Once testing is complete and you do not need to rebuild the
-                image for test any longer, you can easily reset the default
-                hostname.
-            </para>
-
-            <para>
-                Another point of interest is that if you unset the variable,
-                the image will have no default hostname in the filesystem.
-                Here is an example that unsets the variable in a
-                configuration file:
-                <literallayout class='monospaced'>
-     hostname_pn-base-files = ""
-                </literallayout>
-                Having no default hostname in the filesystem is suitable for
-                environments that use dynamic hostnames such as virtual
-                machines.
-            </para>
-        </section>
-    </section>
-
-    <section id='new-recipe-writing-a-new-recipe'>
-        <title>Writing a New Recipe</title>
-
-        <para>
-            Recipes (<filename>.bb</filename> files) are fundamental components
-            in the Yocto Project environment.
-            Each software component built by the OpenEmbedded build system
-            requires a recipe to define the component.
-            This section describes how to create, write, and test a new
-            recipe.
-            <note>
-                For information on variables that are useful for recipes and
-                for information about recipe naming issues, see the
-                "<ulink url='&YOCTO_DOCS_REF_URL;#ref-varlocality-recipe-required'>Required</ulink>"
-                section of the Yocto Project Reference Manual.
-            </note>
-        </para>
-
-        <section id='new-recipe-overview'>
-            <title>Overview</title>
-
-            <para>
-                The following figure shows the basic process for creating a
-                new recipe.
-                The remainder of the section provides details for the steps.
-                <imagedata fileref="figures/recipe-workflow.png" width="6in" depth="7in" align="center" scalefit="1" />
-            </para>
-        </section>
-
-        <section id='new-recipe-locate-or-automatically-create-a-base-recipe'>
-            <title>Locate or Automatically Create a Base Recipe</title>
-
-            <para>
-                You can always write a recipe from scratch.
-                However, three choices exist that can help you quickly get a
-                start on a new recipe:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis><filename>devtool add</filename>:</emphasis>
-                        A command that assists in creating a recipe and
-                        an environment conducive to development.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>recipetool create</filename>:</emphasis>
-                        A command provided by the Yocto Project that automates
-                        creation of a base recipe based on the source
-                        files.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Existing Recipes:</emphasis>
-                        Location and modification of an existing recipe that is
-                        similar in function to the recipe you need.
-                        </para></listitem>
-                </itemizedlist>
-                <note>
-                    For information on recipe syntax, see the
-                    "<link linkend='recipe-syntax'>Recipe Syntax</link>"
-                    section.
-                </note>
-            </para>
-
-            <section id='new-recipe-creating-the-base-recipe-using-devtool'>
-                <title>Creating the Base Recipe Using <filename>devtool add</filename></title>
-
-                <para>
-                    The <filename>devtool add</filename> command uses the same
-                    logic for auto-creating the recipe as
-                    <filename>recipetool create</filename>, which is listed
-                    below.
-                    Additionally, however, <filename>devtool add</filename>
-                    sets up an environment that makes it easy for you to
-                    patch the source and to make changes to the recipe as
-                    is often necessary when adding a recipe to build a new
-                    piece of software to be included in a build.
-                </para>
-
-                <para>
-                    You can find a complete description of the
-                    <filename>devtool add</filename> command in the
-                    "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-a-closer-look-at-devtool-add'>A Closer Look at <filename>devtool</filename> add</ulink>"
-                    section in the Yocto Project Application Development
-                    and the Extensible Software Development Kit (eSDK) manual.
-                </para>
-            </section>
-
-            <section id='new-recipe-creating-the-base-recipe-using-recipetool'>
-                <title>Creating the Base Recipe Using <filename>recipetool create</filename></title>
-
-                <para>
-                    <filename>recipetool create</filename> automates creation
-                    of a base recipe given a set of source code files.
-                    As long as you can extract or point to the source files,
-                    the tool will construct a recipe and automatically
-                    configure all pre-build information into the recipe.
-                    For example, suppose you have an application that builds
-                    using Autotools.
-                    Creating the base recipe using
-                    <filename>recipetool</filename> results in a recipe
-                    that has the pre-build dependencies, license requirements,
-                    and checksums configured.
-                </para>
-
-                <para>
-                    To run the tool, you just need to be in your
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                    and have sourced the build environment setup script
-                    (i.e.
-                    <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>oe-init-build-env</filename></ulink>).
-                    To get help on the tool, use the following command:
-                    <literallayout class='monospaced'>
-     $ recipetool -h
-     NOTE: Starting bitbake server...
-     usage: recipetool [-d] [-q] [--color COLOR] [-h] &lt;subcommand&gt; ...
-
-     OpenEmbedded recipe tool
-
-     options:
-       -d, --debug     Enable debug output
-       -q, --quiet     Print only errors
-       --color COLOR   Colorize output (where COLOR is auto, always, never)
-       -h, --help      show this help message and exit
-
-     subcommands:
-       create          Create a new recipe
-       newappend       Create a bbappend for the specified target in the specified
-                       layer
-       setvar          Set a variable within a recipe
-       appendfile      Create/update a bbappend to replace a target file
-       appendsrcfiles  Create/update a bbappend to add or replace source files
-       appendsrcfile   Create/update a bbappend to add or replace a source file
-     Use recipetool &lt;subcommand&gt; --help to get help on a specific command
-                    </literallayout>
-                </para>
-
-                <para>
-                    Running
-                    <filename>recipetool create -o</filename>&nbsp;<replaceable>OUTFILE</replaceable>
-                    creates the base recipe and locates it properly in the
-                    layer that contains your source files.
-                    Following are some syntax examples:
-                </para>
-
-                <para>
-                    Use this syntax to generate a recipe based on
-                    <replaceable>source</replaceable>.
-                    Once generated, the recipe resides in the existing source
-                    code layer:
-                    <literallayout class='monospaced'>
-     recipetool create -o <replaceable>OUTFILE</replaceable>&nbsp;<replaceable>source</replaceable>
-                    </literallayout>
-                    Use this syntax to generate a recipe using code that you
-                    extract from <replaceable>source</replaceable>.
-                    The extracted code is placed in its own layer defined
-                    by <replaceable>EXTERNALSRC</replaceable>.
-                    <literallayout class='monospaced'>
-     recipetool create -o <replaceable>OUTFILE</replaceable> -x <replaceable>EXTERNALSRC</replaceable> <replaceable>source</replaceable>
-                    </literallayout>
-                    Use this syntax to generate a recipe based on
-                    <replaceable>source</replaceable>.
-                    The options direct <filename>recipetool</filename> to
-                    generate debugging information.
-                    Once generated, the recipe resides in the existing source
-                    code layer:
-                    <literallayout class='monospaced'>
-     recipetool create -d -o <replaceable>OUTFILE</replaceable> <replaceable>source</replaceable>
-                    </literallayout>
-                </para>
-            </section>
-
-            <section id='new-recipe-locating-and-using-a-similar-recipe'>
-                <title>Locating and Using a Similar Recipe</title>
-
-                <para>
-                    Before writing a recipe from scratch, it is often useful to
-                    discover whether someone else has already written one that
-                    meets (or comes close to meeting) your needs.
-                    The Yocto Project and OpenEmbedded communities maintain many
-                    recipes that might be candidates for what you are doing.
-                    You can find a good central index of these recipes in the
-                    <ulink url='http://layers.openembedded.org'>OpenEmbedded Layer Index</ulink>.
-                </para>
-
-                <para>
-                    Working from an existing recipe or a skeleton recipe is the
-                    best way to get started.
-                    Here are some points on both methods:
-                    <itemizedlist>
-                        <listitem><para><emphasis>Locate and modify a recipe that
-                            is close to what you want to do:</emphasis>
-                            This method works when you are familiar with the
-                            current recipe space.
-                            The method does not work so well for those new to
-                            the Yocto Project or writing recipes.</para>
-                            <para>Some risks associated with this method are
-                            using a recipe that has areas totally unrelated to
-                            what you are trying to accomplish with your recipe,
-                            not recognizing areas of the recipe that you might
-                            have to add from scratch, and so forth.
-                            All these risks stem from unfamiliarity with the
-                            existing recipe space.</para></listitem>
-                        <listitem><para><emphasis>Use and modify the following
-                            skeleton recipe:</emphasis>
-                            If for some reason you do not want to use
-                            <filename>recipetool</filename> and you cannot
-                            find an existing recipe that is close to meeting
-                            your needs, you can use the following structure to
-                            provide the fundamental areas of a new recipe.
-                            <literallayout class='monospaced'>
-     DESCRIPTION = ""
-     HOMEPAGE = ""
-     LICENSE = ""
-     SECTION = ""
-     DEPENDS = ""
-     LIC_FILES_CHKSUM = ""
-
-     SRC_URI = ""
-                            </literallayout>
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-        </section>
-
-        <section id='new-recipe-storing-and-naming-the-recipe'>
-            <title>Storing and Naming the Recipe</title>
-
-            <para>
-                Once you have your base recipe, you should put it in your
-                own layer and name it appropriately.
-                Locating it correctly ensures that the OpenEmbedded build
-                system can find it when you use BitBake to process the
-                recipe.
-            </para>
-
-            <itemizedlist>
-                <listitem><para><emphasis>Storing Your Recipe:</emphasis>
-                    The OpenEmbedded build system locates your recipe
-                    through the layer's <filename>conf/layer.conf</filename>
-                    file and the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILES'><filename>BBFILES</filename></ulink>
-                    variable.
-                    This variable sets up a path from which the build system can
-                    locate recipes.
-                    Here is the typical use:
-                    <literallayout class='monospaced'>
-     BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \
-                 ${LAYERDIR}/recipes-*/*/*.bbappend"
-                    </literallayout>
-                    Consequently, you need to be sure you locate your new recipe
-                    inside your layer such that it can be found.</para>
-                    <para>You can find more information on how layers are
-                    structured in the
-                    "<link linkend='understanding-and-creating-layers'>Understanding and Creating Layers</link>"
-                    section.</para></listitem>
-                <listitem><para><emphasis>Naming Your Recipe:</emphasis>
-                    When you name your recipe, you need to follow this naming
-                    convention:
-                    <literallayout class='monospaced'>
-     <replaceable>basename</replaceable>_<replaceable>version</replaceable>.bb
-                    </literallayout>
-                    Use lower-cased characters and do not include the reserved
-                    suffixes <filename>-native</filename>,
-                    <filename>-cross</filename>, <filename>-initial</filename>,
-                    or <filename>-dev</filename> casually (i.e. do not use them
-                    as part of your recipe name unless the string applies).
-                    Here are some examples:
-                    <literallayout class='monospaced'>
-     cups_1.7.0.bb
-     gawk_4.0.2.bb
-     irssi_0.8.16-rc1.bb
-                    </literallayout></para></listitem>
-            </itemizedlist>
-        </section>
-
-        <section id='new-recipe-running-a-build-on-the-recipe'>
-            <title>Running a Build on the Recipe</title>
-
-            <para>
-                Creating a new recipe is usually an iterative process that
-                requires using BitBake to process the recipe multiple times in
-                order to progressively discover and add information to the
-                recipe file.
-            </para>
-
-            <para>
-                Assuming you have sourced the build environment setup script (i.e.
-                <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>)
-                and you are in the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>,
-                use BitBake to process your recipe.
-                All you need to provide is the
-                <filename><replaceable>basename</replaceable></filename> of the recipe as described
-                in the previous section:
-                <literallayout class='monospaced'>
-     $ bitbake <replaceable>basename</replaceable>
-                </literallayout>
-
-            </para>
-
-            <para>
-                During the build, the OpenEmbedded build system creates a
-                temporary work directory for each recipe
-                (<filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink><filename>}</filename>)
-                where it keeps extracted source files, log files, intermediate
-                compilation and packaging files, and so forth.
-            </para>
-
-            <para>
-                The path to the per-recipe temporary work directory depends
-                on the context in which it is being built.
-                The quickest way to find this path is to have BitBake return it
-                by running the following:
-                <literallayout class='monospaced'>
-     $ bitbake -e <replaceable>basename</replaceable> | grep ^WORKDIR=
-                </literallayout>
-                As an example, assume a Source Directory top-level folder named
-                <filename>poky</filename>, a default Build Directory at
-                <filename>poky/build</filename>, and a
-                <filename>qemux86-poky-linux</filename> machine target system.
-                Furthermore, suppose your recipe is named
-                <filename>foo_1.3.0.bb</filename>.
-                In this case, the work directory the build system uses to
-                build the package would be as follows:
-                <literallayout class='monospaced'>
-     poky/build/tmp/work/qemux86-poky-linux/foo/1.3.0-r0
-                </literallayout>
-                Inside this directory you can find sub-directories such as
-                <filename>image</filename>, <filename>packages-split</filename>,
-                and <filename>temp</filename>.
-                After the build, you can examine these to determine how well
-                the build went.
-                <note>
-                    You can find log files for each task in the recipe's
-                    <filename>temp</filename> directory (e.g.
-                    <filename>poky/build/tmp/work/qemux86-poky-linux/foo/1.3.0-r0/temp</filename>).
-                    Log files are named <filename>log.<replaceable>taskname</replaceable></filename>
-                    (e.g. <filename>log.do_configure</filename>,
-                    <filename>log.do_fetch</filename>, and
-                    <filename>log.do_compile</filename>).
-                </note>
-            </para>
-
-            <para>
-                You can find more information about the build process in
-                "<ulink url='&YOCTO_DOCS_OM_URL;#overview-development-environment'>The Yocto Project Development Environment</ulink>"
-                chapter of the Yocto Project Overview and Concepts Manual.
-            </para>
-        </section>
-
-        <section id='new-recipe-fetching-code'>
-            <title>Fetching Code</title>
-
-            <para>
-                The first thing your recipe must do is specify how to fetch
-                the source files.
-                Fetching is controlled mainly through the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                variable.
-                Your recipe must have a <filename>SRC_URI</filename> variable
-                that points to where the source is located.
-                For a graphical representation of source locations, see the
-                "<ulink url='&YOCTO_DOCS_OM_URL;#sources-dev-environment'>Sources</ulink>"
-                section in the Yocto Project Overview and Concepts Manual.
-            </para>
-
-            <para>
-                The
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-fetch'><filename>do_fetch</filename></ulink>
-                task uses the prefix of each entry in the
-                <filename>SRC_URI</filename> variable value to determine which
-                <ulink url='&YOCTO_DOCS_BB_URL;#bb-fetchers'>fetcher</ulink>
-                to use to get your source files.
-                It is the <filename>SRC_URI</filename> variable that triggers
-                the fetcher.
-                The
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-patch'><filename>do_patch</filename></ulink>
-                task uses the variable after source is fetched to apply
-                patches.
-                The OpenEmbedded build system uses
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESOVERRIDES'><filename>FILESOVERRIDES</filename></ulink>
-                for scanning directory locations for local files in
-                <filename>SRC_URI</filename>.
-            </para>
-
-            <para>
-                The <filename>SRC_URI</filename> variable in your recipe must
-                define each unique location for your source files.
-                It is good practice to not hard-code version numbers in a URL used
-                in <filename>SRC_URI</filename>.
-                Rather than hard-code these values, use
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink><filename>}</filename>,
-                which causes the fetch process to use the version specified in
-                the recipe filename.
-                Specifying the version in this manner means that upgrading the
-                recipe to a future version is as simple as renaming the recipe
-                to match the new version.
-            </para>
-
-            <para>
-                Here is a simple example from the
-                <filename>meta/recipes-devtools/strace/strace_5.5.bb</filename>
-                recipe where the source comes from a single tarball.
-                Notice the use of the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>
-                variable:
-                <literallayout class='monospaced'>
-     SRC_URI = "https://strace.io/files/${PV}/strace-${PV}.tar.xz \
-                </literallayout>
-            </para>
-
-            <para>
-                Files mentioned in <filename>SRC_URI</filename> whose names end
-                in a typical archive extension (e.g. <filename>.tar</filename>,
-                <filename>.tar.gz</filename>, <filename>.tar.bz2</filename>,
-                <filename>.zip</filename>, and so forth), are automatically
-                extracted during the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-unpack'><filename>do_unpack</filename></ulink>
-                task.
-                For another example that specifies these types of files, see
-                the
-                "<link linkend='new-recipe-autotooled-package'>Autotooled Package</link>"
-                section.
-            </para>
-
-            <para>
-                Another way of specifying source is from an SCM.
-                For Git repositories, you must specify
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRCREV'><filename>SRCREV</filename></ulink>
-                and you should specify
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>
-                to include the revision with
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRCPV'><filename>SRCPV</filename></ulink>.
-                Here is an example from the recipe
-                <filename>meta/recipes-kernel/blktrace/blktrace_git.bb</filename>:
-                <literallayout class='monospaced'>
-     SRCREV = "d6918c8832793b4205ed3bfede78c2f915c23385"
-
-     PR = "r6"
-     PV = "1.0.5+git${SRCPV}"
-
-     SRC_URI = "git://git.kernel.dk/blktrace.git \
-                file://ldflags.patch"
-                </literallayout>
-            </para>
-
-            <para>
-                If your <filename>SRC_URI</filename> statement includes
-                URLs pointing to individual files fetched from a remote server
-                other than a version control system, BitBake attempts to
-                verify the files against checksums defined in your recipe to
-                ensure they have not been tampered with or otherwise modified
-                since the recipe was written.
-                Two checksums are used:
-                <filename>SRC_URI[md5sum]</filename> and
-                <filename>SRC_URI[sha256sum]</filename>.
-            </para>
-
-            <para>
-                If your <filename>SRC_URI</filename> variable points to
-                more than a single URL (excluding SCM URLs), you need to
-                provide the <filename>md5</filename> and
-                <filename>sha256</filename> checksums for each URL.
-                For these cases, you provide a name for each URL as part of
-                the <filename>SRC_URI</filename> and then reference that name
-                in the subsequent checksum statements.
-                Here is an example combining lines from the files
-                <filename>git.inc</filename> and
-                <filename>git_2.24.1.bb</filename>:
-                <literallayout class='monospaced'>
-     SRC_URI = "${KERNELORG_MIRROR}/software/scm/git/git-${PV}.tar.gz;name=tarball \
-                ${KERNELORG_MIRROR}/software/scm/git/git-manpages-${PV}.tar.gz;name=manpages"
-
-     SRC_URI[tarball.md5sum] = "166bde96adbbc11c8843d4f8f4f9811b"
-     SRC_URI[tarball.sha256sum] = "ad5334956301c86841eb1e5b1bb20884a6bad89a10a6762c958220c7cf64da02"
-     SRC_URI[manpages.md5sum] = "31c2272a8979022497ba3d4202df145d"
-     SRC_URI[manpages.sha256sum] = "9a7ae3a093bea39770eb96ca3e5b40bff7af0b9f6123f089d7821d0e5b8e1230"
-                </literallayout>
-            </para>
-
-            <para>
-                Proper values for <filename>md5</filename> and
-                <filename>sha256</filename> checksums might be available
-                with other signatures on the download page for the upstream
-                source (e.g. <filename>md5</filename>,
-                <filename>sha1</filename>, <filename>sha256</filename>,
-                <filename>GPG</filename>, and so forth).
-                Because the OpenEmbedded build system only deals with
-                <filename>sha256sum</filename> and <filename>md5sum</filename>,
-                you should verify all the signatures you find by hand.
-            </para>
-
-            <para>
-                If no <filename>SRC_URI</filename> checksums are specified
-                when you attempt to build the recipe, or you provide an
-                incorrect checksum, the build will produce an error for each
-                missing or incorrect checksum.
-                As part of the error message, the build system provides
-                the checksum string corresponding to the fetched file.
-                Once you have the correct checksums, you can copy and paste
-                them into your recipe and then run the build again to continue.
-                <note>
-                    As mentioned, if the upstream source provides signatures
-                    for verifying the downloaded source code, you should
-                    verify those manually before setting the checksum values
-                    in the recipe and continuing with the build.
-                </note>
-            </para>
-
-            <para>
-                This final example is a bit more complicated and is from the
-                <filename>meta/recipes-sato/rxvt-unicode/rxvt-unicode_9.20.bb</filename>
-                recipe.
-                The example's <filename>SRC_URI</filename> statement identifies
-                multiple files as the source files for the recipe: a tarball, a
-                patch file, a desktop file, and an icon.
-                <literallayout class='monospaced'>
-     SRC_URI = "http://dist.schmorp.de/rxvt-unicode/Attic/rxvt-unicode-${PV}.tar.bz2 \
-                file://xwc.patch \
-                file://rxvt.desktop \
-                file://rxvt.png"
-                </literallayout>
-            </para>
-
-            <para>
-                When you specify local files using the
-                <filename>file://</filename> URI protocol, the build system
-                fetches files from the local machine.
-                The path is relative to the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESPATH'><filename>FILESPATH</filename></ulink>
-                variable and searches specific directories in a certain order:
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-BP'><filename>BP</filename></ulink><filename>}</filename>,
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-BPN'><filename>BPN</filename></ulink><filename>}</filename>,
-                and <filename>files</filename>.
-                The directories are assumed to be subdirectories of the
-                directory in which the recipe or append file resides.
-                For another example that specifies these types of files, see the
-                "<link linkend='new-recipe-single-c-file-package-hello-world'>Single .c File Package (Hello World!)</link>"
-                section.
-            </para>
-
-            <para>
-                The previous example also specifies a patch file.
-                Patch files are files whose names usually end in
-                <filename>.patch</filename> or <filename>.diff</filename> but
-                can end with compressed suffixes such as
-                <filename>diff.gz</filename> and
-                <filename>patch.bz2</filename>, for example.
-                The build system automatically applies patches as described
-                in the
-                "<link linkend='new-recipe-patching-code'>Patching Code</link>" section.
-            </para>
-        </section>
-
-        <section id='new-recipe-unpacking-code'>
-            <title>Unpacking Code</title>
-
-            <para>
-                During the build, the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-unpack'><filename>do_unpack</filename></ulink>
-                task unpacks the source with
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-S'><filename>S</filename></ulink><filename>}</filename>
-                pointing to where it is unpacked.
-            </para>
-
-            <para>
-                If you are fetching your source files from an upstream source
-                archived tarball and the tarball's internal structure matches
-                the common convention of a top-level subdirectory named
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-BPN'><filename>BPN</filename></ulink><filename>}-${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink><filename>}</filename>,
-                then you do not need to set <filename>S</filename>.
-                However, if <filename>SRC_URI</filename> specifies to fetch
-                source from an archive that does not use this convention,
-                or from an SCM like Git or Subversion, your recipe needs to
-                define <filename>S</filename>.
-            </para>
-
-            <para>
-                If processing your recipe using BitBake successfully unpacks
-                the source files, you need to be sure that the directory
-                pointed to by <filename>${S}</filename> matches the structure
-                of the source.
-            </para>
-        </section>
-
-        <section id='new-recipe-patching-code'>
-            <title>Patching Code</title>
-
-            <para>
-                Sometimes it is necessary to patch code after it has been
-                fetched.
-                Any files mentioned in <filename>SRC_URI</filename> whose
-                names end in <filename>.patch</filename> or
-                <filename>.diff</filename> or compressed versions of these
-                suffixes (e.g. <filename>diff.gz</filename> are treated as
-                patches.
-                The
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-patch'><filename>do_patch</filename></ulink>
-                task automatically applies these patches.
-            </para>
-
-            <para>
-                The build system should be able to apply patches with the "-p1"
-                option (i.e. one directory level in the path will be stripped
-                off).
-                If your patch needs to have more directory levels stripped off,
-                specify the number of levels using the "striplevel" option in
-                the <filename>SRC_URI</filename> entry for the patch.
-                Alternatively, if your patch needs to be applied in a specific
-                subdirectory that is not specified in the patch file, use the
-                "patchdir" option in the entry.
-            </para>
-
-            <para>
-                As with all local files referenced in
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                using <filename>file://</filename>, you should place
-                patch files in a directory next to the recipe either
-                named the same as the base name of the recipe
-                (<ulink url='&YOCTO_DOCS_REF_URL;#var-BP'><filename>BP</filename></ulink>
-                and
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-BPN'><filename>BPN</filename></ulink>)
-                or "files".
-            </para>
-        </section>
-
-        <section id='new-recipe-licensing'>
-            <title>Licensing</title>
-
-            <para>
-                Your recipe needs to have both the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-LICENSE'><filename>LICENSE</filename></ulink>
-                and
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-LIC_FILES_CHKSUM'><filename>LIC_FILES_CHKSUM</filename></ulink>
-                variables:
-                <itemizedlist>
-                    <listitem><para><emphasis><filename>LICENSE</filename>:</emphasis>
-                        This variable specifies the license for the software.
-                        If you do not know the license under which the software
-                        you are building is distributed, you should go to the
-                        source code and look for that information.
-                        Typical files containing this information include
-                        <filename>COPYING</filename>,
-                        <filename>LICENSE</filename>, and
-                        <filename>README</filename> files.
-                        You could also find the information near the top of
-                        a source file.
-                        For example, given a piece of software licensed under
-                        the GNU General Public License version 2, you would
-                        set <filename>LICENSE</filename> as follows:
-                        <literallayout class='monospaced'>
-     LICENSE = "GPLv2"
-                        </literallayout></para>
-                        <para>The licenses you specify within
-                        <filename>LICENSE</filename> can have any name as long
-                        as you do not use spaces, since spaces are used as
-                        separators between license names.
-                        For standard licenses, use the names of the files in
-                        <filename>meta/files/common-licenses/</filename>
-                        or the <filename>SPDXLICENSEMAP</filename> flag names
-                        defined in <filename>meta/conf/licenses.conf</filename>.
-                        </para></listitem>
-                    <listitem><para><emphasis><filename>LIC_FILES_CHKSUM</filename>:</emphasis>
-                        The OpenEmbedded build system uses this variable to
-                        make sure the license text has not changed.
-                        If it has, the build produces an error and it affords
-                        you the chance to figure it out and correct the problem.
-                        </para>
-                        <para>You need to specify all applicable licensing
-                        files for the software.
-                        At the end of the configuration step, the build process
-                        will compare the checksums of the files to be sure
-                        the text has not changed.
-                        Any differences result in an error with the message
-                        containing the current checksum.
-                        For more explanation and examples of how to set the
-                        <filename>LIC_FILES_CHKSUM</filename> variable, see the
-                        "<link link='usingpoky-configuring-LIC_FILES_CHKSUM'>Tracking License Changes</link>"
-                        section.</para>
-
-                        <para>To determine the correct checksum string, you
-                        can list the appropriate files in the
-                        <filename>LIC_FILES_CHKSUM</filename> variable with
-                        incorrect md5 strings, attempt to build the software,
-                        and then note the resulting error messages that will
-                        report the correct md5 strings.
-                        See the
-                        "<link linkend='new-recipe-fetching-code'>Fetching Code</link>"
-                        section for additional information.
-                    </para>
-
-                    <para>
-                        Here is an example that assumes the software has a
-                        <filename>COPYING</filename> file:
-                        <literallayout class='monospaced'>
-     LIC_FILES_CHKSUM = "file://COPYING;md5=xxx"
-                        </literallayout>
-                        When you try to build the software, the build system
-                        will produce an error and give you the correct string
-                        that you can substitute into the recipe file for a
-                        subsequent build.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-<!--
-
-            <para>
-                For trying this out I created a new recipe named
-                <filename>htop_1.0.2.bb</filename> and put it in
-                <filename>poky/meta/recipes-extended/htop</filename>.
-                There are two license type statements in my very simple
-                recipe:
-                <literallayout class='monospaced'>
-     LICENSE = ""
-
-     LIC_FILES_CHKSUM = ""
-
-     SRC_URI[md5sum] = ""
-     SRC_URI[sha256sum] = ""
-                </literallayout>
-                Evidently, you need to run a <filename>bitbake -c cleanall htop</filename>.
-                Next, you delete or comment out the two <filename>SRC_URI</filename>
-                lines at the end and then attempt to build the software with
-                <filename>bitbake htop</filename>.
-                Doing so causes BitBake to report some errors and and give
-                you the actual strings you need for the last two
-                <filename>SRC_URI</filename> lines.
-                Prior to this, you have to dig around in the home page of the
-                source for <filename>htop</filename> and determine that the
-                software is released under GPLv2.
-                You can provide that in the <filename>LICENSE</filename>
-                statement.
-                Now you edit your recipe to have those two strings for
-                the <filename>SRC_URI</filename> statements:
-                <literallayout class='monospaced'>
-     LICENSE = "GPLv2"
-
-     LIC_FILES_CHKSUM = ""
-
-     SRC_URI = "${SOURCEFORGE_MIRROR}/htop/htop-${PV}.tar.gz"
-     SRC_URI[md5sum] = "0d01cca8df3349c74569cefebbd9919e"
-     SRC_URI[sha256sum] = "ee60657b044ece0df096c053060df7abf3cce3a568ab34d260049e6a37ccd8a1"
-                </literallayout>
-                At this point, you can build the software again using the
-                <filename>bitbake htop</filename> command.
-                There is just a set of errors now associated with the
-                empty <filename>LIC_FILES_CHKSUM</filename> variable now.
-            </para>
--->
-
-        </section>
-
-        <section id='new-dependencies'>
-            <title>Dependencies</title>
-
-            <para>
-                Most software packages have a short list of other packages
-                that they require, which are called dependencies.
-                These dependencies fall into two main categories: build-time
-                dependencies, which are required when the software is built;
-                and runtime dependencies, which are required to be installed
-                on the target in order for the software to run.
-            </para>
-
-            <para>
-                Within a recipe, you specify build-time dependencies using the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPENDS'><filename>DEPENDS</filename></ulink>
-                variable.
-                Although nuances exist, items specified in
-                <filename>DEPENDS</filename> should be names of other recipes.
-                It is important that you specify all build-time dependencies
-                explicitly.
-                If you do not, due to the parallel nature of BitBake's
-                execution, you can end up with a race condition where the
-                dependency is present for one task of a recipe (e.g.
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-configure'><filename>do_configure</filename></ulink>)
-                and then gone when the next task runs (e.g.
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-compile'><filename>do_compile</filename></ulink>).
-            </para>
-
-            <para>
-                Another consideration is that configure scripts might
-                automatically check for optional dependencies and enable
-                corresponding functionality if those dependencies are found.
-                This behavior means that to ensure deterministic results and
-                thus avoid more race conditions, you need to either explicitly
-                specify these dependencies as well, or tell the configure
-                script explicitly to disable the functionality.
-                If you wish to make a recipe that is more generally useful
-                (e.g. publish the recipe in a layer for others to use),
-                instead of hard-disabling the functionality, you can use the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGECONFIG'><filename>PACKAGECONFIG</filename></ulink>
-                variable to allow functionality and the corresponding
-                dependencies to be enabled and disabled easily by other
-                users of the recipe.
-            </para>
-
-            <para>
-                Similar to build-time dependencies, you specify runtime
-                dependencies through a variable -
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-RDEPENDS'><filename>RDEPENDS</filename></ulink>,
-                which is package-specific.
-                All variables that are package-specific need to have the name
-                of the package added to the end as an override.
-                Since the main package for a recipe has the same name as the
-                recipe, and the recipe's name can be found through the
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink><filename>}</filename>
-                variable, then you specify the dependencies for the main
-                package by setting <filename>RDEPENDS_${PN}</filename>.
-                If the package were named <filename>${PN}-tools</filename>,
-                then you would set <filename>RDEPENDS_${PN}-tools</filename>,
-                and so forth.
-            </para>
-
-            <para>
-                Some runtime dependencies will be set automatically at
-                packaging time.
-                These dependencies include any shared library dependencies
-                (i.e. if a package "example" contains "libexample" and
-                another package "mypackage" contains a binary that links to
-                "libexample" then the OpenEmbedded build system will
-                automatically add a runtime dependency to "mypackage" on
-                "example").
-                See the
-                "<ulink url='&YOCTO_DOCS_OM_URL;#automatically-added-runtime-dependencies'>Automatically Added Runtime Dependencies</ulink>"
-                section in the Yocto Project Overview and Concepts Manual for
-                further details.
-            </para>
-        </section>
-
-        <section id='new-recipe-configuring-the-recipe'>
-            <title>Configuring the Recipe</title>
-
-            <para>
-                Most software provides some means of setting build-time
-                configuration options before compilation.
-                Typically, setting these options is accomplished by running a
-                configure script with options, or by modifying a build
-                configuration file.
-                <note>
-                    As of Yocto Project Release 1.7, some of the core recipes
-                    that package binary configuration scripts now disable the
-                    scripts due to the scripts previously requiring error-prone
-                    path substitution.
-                    The OpenEmbedded build system uses
-                    <filename>pkg-config</filename> now, which is much more
-                    robust.
-                    You can find a list of the <filename>*-config</filename>
-                    scripts that are disabled list in the
-                    "<ulink url='&YOCTO_DOCS_REF_URL;#migration-1.7-binary-configuration-scripts-disabled'>Binary Configuration Scripts Disabled</ulink>"
-                    section in the Yocto Project Reference Manual.
-                </note>
-            </para>
-
-            <para>
-                A major part of build-time configuration is about checking for
-                build-time dependencies and possibly enabling optional
-                functionality as a result.
-                You need to specify any build-time dependencies for the
-                software you are building in your recipe's
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPENDS'><filename>DEPENDS</filename></ulink>
-                value, in terms of other recipes that satisfy those
-                dependencies.
-                You can often find build-time or runtime
-                dependencies described in the software's documentation.
-            </para>
-
-            <para>
-                The following list provides configuration items of note based
-                on how your software is built:
-                <itemizedlist>
-                    <listitem><para><emphasis>Autotools:</emphasis>
-                        If your source files have a
-                        <filename>configure.ac</filename> file, then your
-                        software is built using Autotools.
-                        If this is the case, you just need to worry about
-                        modifying the configuration.</para>
-
-                        <para>When using Autotools, your recipe needs to inherit
-                        the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-autotools'><filename>autotools</filename></ulink>
-                        class and your recipe does not have to contain a
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-configure'><filename>do_configure</filename></ulink>
-                        task.
-                        However, you might still want to make some adjustments.
-                        For example, you can set
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_OECONF'><filename>EXTRA_OECONF</filename></ulink>
-                        or
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGECONFIG_CONFARGS'><filename>PACKAGECONFIG_CONFARGS</filename></ulink>
-                        to pass any needed configure options that are specific
-                        to the recipe.
-                        </para></listitem>
-                    <listitem><para><emphasis>CMake:</emphasis>
-                        If your source files have a
-                        <filename>CMakeLists.txt</filename> file, then your
-                        software is built using CMake.
-                        If this is the case, you just need to worry about
-                        modifying the configuration.</para>
-
-                        <para>When you use CMake, your recipe needs to inherit
-                        the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-cmake'><filename>cmake</filename></ulink>
-                        class and your recipe does not have to contain a
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-configure'><filename>do_configure</filename></ulink>
-                        task.
-                        You can make some adjustments by setting
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_OECMAKE'><filename>EXTRA_OECMAKE</filename></ulink>
-                        to pass any needed configure options that are specific
-                        to the recipe.
-                        <note>
-                            If you need to install one or more custom CMake
-                            toolchain files that are supplied by the
-                            application you are building, install the files to
-                            <filename>${D}${datadir}/cmake/</filename> Modules
-                            during
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>.
-                        </note>
-                        </para></listitem>
-                    <listitem><para><emphasis>Other:</emphasis>
-                        If your source files do not have a
-                        <filename>configure.ac</filename> or
-                        <filename>CMakeLists.txt</filename> file, then your
-                        software is built using some method other than Autotools
-                        or CMake.
-                        If this is the case, you normally need to provide a
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-configure'><filename>do_configure</filename></ulink>
-                        task in your recipe
-                        unless, of course, there is nothing to configure.
-                        </para>
-                        <para>Even if your software is not being built by
-                        Autotools or CMake, you still might not need to deal
-                        with any configuration issues.
-                        You need to determine if configuration is even a required step.
-                        You might need to modify a Makefile or some configuration file
-                        used for the build to specify necessary build options.
-                        Or, perhaps you might need to run a provided, custom
-                        configure script with the appropriate options.</para>
-                        <para>For the case involving a custom configure
-                        script, you would run
-                        <filename>./configure --help</filename> and look for
-                        the options you need to set.</para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                Once configuration succeeds, it is always good practice to
-                look at the <filename>log.do_configure</filename> file to
-                ensure that the appropriate options have been enabled and no
-                additional build-time dependencies need to be added to
-                <filename>DEPENDS</filename>.
-                For example, if the configure script reports that it found
-                something not mentioned in <filename>DEPENDS</filename>, or
-                that it did not find something that it needed for some
-                desired optional functionality, then you would need to add
-                those to <filename>DEPENDS</filename>.
-                Looking at the log might also reveal items being checked for,
-                enabled, or both that you do not want, or items not being found
-                that are in <filename>DEPENDS</filename>, in which case
-                you would need to look at passing extra options to the
-                configure script as needed.
-                For reference information on configure options specific to the
-                software you are building, you can consult the output of the
-                <filename>./configure --help</filename> command within
-                <filename>${S}</filename> or consult the software's upstream
-                documentation.
-            </para>
-        </section>
-
-        <section id='new-recipe-using-headers-to-interface-with-devices'>
-            <title>Using Headers to Interface with Devices</title>
-
-            <para>
-                If your recipe builds an application that needs to
-                communicate with some device or needs an API into a custom
-                kernel, you will need to provide appropriate header files.
-                Under no circumstances should you ever modify the existing
-                <filename>meta/recipes-kernel/linux-libc-headers/linux-libc-headers.inc</filename>
-                file.
-                These headers are used to build <filename>libc</filename> and
-                must not be compromised with custom or machine-specific
-                header information.
-                If you customize <filename>libc</filename> through modified
-                headers all other applications that use
-                <filename>libc</filename> thus become affected.
-                <note><title>Warning</title>
-                    Never copy and customize the <filename>libc</filename>
-                    header file (i.e.
-                    <filename>meta/recipes-kernel/linux-libc-headers/linux-libc-headers.inc</filename>).
-                </note>
-                The correct way to interface to a device or custom kernel is
-                to use a separate package that provides the additional headers
-                for the driver or other unique interfaces.
-                When doing so, your application also becomes responsible for
-                creating a dependency on that specific provider.
-            </para>
-
-            <para>
-                Consider the following:
-                <itemizedlist>
-                    <listitem><para>
-                        Never modify
-                        <filename>linux-libc-headers.inc</filename>.
-                        Consider that file to be part of the
-                        <filename>libc</filename> system, and not something
-                        you use to access the kernel directly.
-                        You should access <filename>libc</filename> through
-                        specific <filename>libc</filename> calls.
-                        </para></listitem>
-                    <listitem><para>
-                        Applications that must talk directly to devices
-                        should either provide necessary headers themselves,
-                        or establish a dependency on a special headers package
-                        that is specific to that driver.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                For example, suppose you want to modify an existing header
-                that adds I/O control or network support.
-                If the modifications are used by a small number programs,
-                providing a unique version of a header is easy and has little
-                impact.
-                When doing so, bear in mind the guidelines in the previous
-                list.
-                <note>
-                    If for some reason your changes need to modify the behavior
-                    of the <filename>libc</filename>, and subsequently all
-                    other applications on the system, use a
-                    <filename>.bbappend</filename> to modify the
-                    <filename>linux-kernel-headers.inc</filename> file.
-                    However, take care to not make the changes
-                    machine specific.
-                </note>
-            </para>
-
-            <para>
-                Consider a case where your kernel is older and you need
-                an older <filename>libc</filename> ABI.
-                The headers installed by your recipe should still be a
-                standard mainline kernel, not your own custom one.
-            </para>
-
-            <para>
-                When you use custom kernel headers you need to get them from
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-STAGING_KERNEL_DIR'><filename>STAGING_KERNEL_DIR</filename></ulink>,
-                which is the directory with kernel headers that are
-                required to build out-of-tree modules.
-                Your recipe will also need the following:
-                <literallayout class='monospaced'>
-     do_configure[depends] += "virtual/kernel:do_shared_workdir"
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='new-recipe-compilation'>
-            <title>Compilation</title>
-
-            <para>
-                During a build, the <filename>do_compile</filename> task
-                happens after source is fetched, unpacked, and configured.
-                If the recipe passes through <filename>do_compile</filename>
-                successfully, nothing needs to be done.
-            </para>
-
-            <para>
-                However, if the compile step fails, you need to diagnose the
-                failure.
-                Here are some common issues that cause failures.
-                <note>
-                    For cases where improper paths are detected for
-                    configuration files or for when libraries/headers cannot
-                    be found, be sure you are using the more robust
-                    <filename>pkg-config</filename>.
-                    See the note in section
-                    "<link linkend='new-recipe-configuring-the-recipe'>Configuring the Recipe</link>"
-                    for additional information.
-                </note>
-                <itemizedlist>
-                    <listitem><para><emphasis>Parallel build failures:</emphasis>
-                        These failures manifest themselves as intermittent
-                        errors, or errors reporting that a file or directory
-                        that should be created by some other part of the build
-                        process could not be found.
-                        This type of failure can occur even if, upon inspection,
-                        the file or directory does exist after the build has
-                        failed, because that part of the build process happened
-                        in the wrong order.</para>
-                        <para>To fix the problem, you need to either satisfy
-                        the missing dependency in the Makefile or whatever
-                        script produced the Makefile, or (as a workaround)
-                        set
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PARALLEL_MAKE'><filename>PARALLEL_MAKE</filename></ulink>
-                        to an empty string:
-                        <literallayout class='monospaced'>
-     PARALLEL_MAKE = ""
-                        </literallayout></para>
-                        <para>
-                            For information on parallel Makefile issues, see the
-                            "<link linkend='debugging-parallel-make-races'>Debugging Parallel Make Races</link>"
-                            section.
-                            </para></listitem>
-                    <listitem><para><emphasis>Improper host path usage:</emphasis>
-                        This failure applies to recipes building for the target
-                        or <filename>nativesdk</filename> only.
-                        The failure occurs when the compilation process uses
-                        improper headers, libraries, or other files from the
-                        host system when cross-compiling for the target.
-                        </para>
-                        <para>To fix the problem, examine the
-                        <filename>log.do_compile</filename> file to identify
-                        the host paths being used (e.g.
-                        <filename>/usr/include</filename>,
-                        <filename>/usr/lib</filename>, and so forth) and then
-                        either add configure options, apply a patch, or do both.
-                        </para></listitem>
-                    <listitem><para><emphasis>Failure to find required
-                        libraries/headers:</emphasis>
-                        If a build-time dependency is missing because it has
-                        not been declared in
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPENDS'><filename>DEPENDS</filename></ulink>,
-                        or because the dependency exists but the path used by
-                        the build process to find the file is incorrect and the
-                        configure step did not detect it, the compilation
-                        process could fail.
-                        For either of these failures, the compilation process
-                        notes that files could not be found.
-                        In these cases, you need to go back and add additional
-                        options to the configure script as well as possibly
-                        add additional build-time dependencies to
-                        <filename>DEPENDS</filename>.</para>
-                        <para>Occasionally, it is necessary to apply a patch
-                        to the source to ensure the correct paths are used.
-                        If you need to specify paths to find files staged
-                        into the sysroot from other recipes, use the variables
-                        that the OpenEmbedded build system provides
-                        (e.g.
-                        <filename>STAGING_BINDIR</filename>,
-                        <filename>STAGING_INCDIR</filename>,
-                        <filename>STAGING_DATADIR</filename>, and so forth).
-<!--
-                        (e.g.
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-STAGING_BINDIR'><filename>STAGING_BINDIR</filename></ulink>,
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-STAGING_INCDIR'><filename>STAGING_INCDIR</filename></ulink>,
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-STAGING_DATADIR'><filename>STAGING_DATADIR</filename></ulink>,
-                        and so forth).
--->
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='new-recipe-installing'>
-            <title>Installing</title>
-
-            <para>
-                During <filename>do_install</filename>, the task copies the
-                built files along with their hierarchy to locations that
-                would mirror their locations on the target device.
-                The installation process copies files from the
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-S'><filename>S</filename></ulink><filename>}</filename>,
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-B'><filename>B</filename></ulink><filename>}</filename>,
-                and
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink><filename>}</filename>
-                directories to the
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-D'><filename>D</filename></ulink><filename>}</filename>
-                directory to create the structure as it should appear on the
-                target system.
-            </para>
-
-            <para>
-                How your software is built affects what you must do to be
-                sure your software is installed correctly.
-                The following list describes what you must do for installation
-                depending on the type of build system used by the software
-                being built:
-                <itemizedlist>
-                    <listitem><para><emphasis>Autotools and CMake:</emphasis>
-                        If the software your recipe is building uses Autotools
-                        or CMake, the OpenEmbedded build
-                        system understands how to install the software.
-                        Consequently, you do not have to have a
-                        <filename>do_install</filename> task as part of your
-                        recipe.
-                        You just need to make sure the install portion of the
-                        build completes with no issues.
-                        However, if you wish to install additional files not
-                        already being installed by
-                        <filename>make install</filename>, you should do this
-                        using a <filename>do_install_append</filename> function
-                        using the install command as described in
-                        the "Manual" bulleted item later in this list.
-                        </para></listitem>
-                    <listitem><para><emphasis>Other (using
-                        <filename>make install</filename>):</emphasis>
-                        You need to define a
-                        <filename>do_install</filename> function in your
-                        recipe.
-                        The function should call
-                        <filename>oe_runmake install</filename> and will likely
-                        need to pass in the destination directory as well.
-                        How you pass that path is dependent on how the
-                        <filename>Makefile</filename> being run is written
-                        (e.g. <filename>DESTDIR=${D}</filename>,
-                        <filename>PREFIX=${D}</filename>,
-                        <filename>INSTALLROOT=${D}</filename>, and so forth).
-                        </para>
-                        <para>For an example recipe using
-                        <filename>make install</filename>, see the
-                        "<link linkend='new-recipe-makefile-based-package'>Makefile-Based Package</link>"
-                        section.</para></listitem>
-                    <listitem><para><emphasis>Manual:</emphasis>
-                        You need to define a
-                        <filename>do_install</filename> function in your
-                        recipe.
-                        The function must first use
-                        <filename>install -d</filename> to create the
-                        directories under
-                        <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-D'><filename>D</filename></ulink><filename>}</filename>.
-                        Once the directories exist, your function can use
-                        <filename>install</filename> to manually install the
-                        built software into the directories.</para>
-                        <para>You can find more information on
-                        <filename>install</filename> at
-                        <ulink url='http://www.gnu.org/software/coreutils/manual/html_node/install-invocation.html'></ulink>.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                For the scenarios that do not use Autotools or
-                CMake, you need to track the installation
-                and diagnose and fix any issues until everything installs
-                correctly.
-                You need to look in the default location of
-                <filename>${D}</filename>, which is
-                <filename>${WORKDIR}/image</filename>, to be sure your
-                files have been installed correctly.
-            </para>
-
-            <note><title>Notes</title>
-                <itemizedlist>
-                    <listitem><para>
-                        During the installation process, you might need to
-                        modify some of the installed files to suit the target
-                        layout.
-                        For example, you might need to replace hard-coded paths
-                        in an initscript with values of variables provided by
-                        the build system, such as replacing
-                        <filename>/usr/bin/</filename> with
-                        <filename>${bindir}</filename>.
-                        If you do perform such modifications during
-                        <filename>do_install</filename>, be sure to modify the
-                        destination file after copying rather than before
-                        copying.
-                        Modifying after copying ensures that the build system
-                        can re-execute <filename>do_install</filename> if
-                        needed.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>oe_runmake install</filename>, which can be
-                        run directly or can be run indirectly by the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-autotools'><filename>autotools</filename></ulink>
-                        and
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-cmake'><filename>cmake</filename></ulink>
-                        classes, runs <filename>make install</filename> in
-                        parallel.
-                        Sometimes, a Makefile can have missing dependencies
-                        between targets that can result in race conditions.
-                        If you experience intermittent failures during
-                        <filename>do_install</filename>, you might be able to
-                        work around them by disabling parallel Makefile
-                        installs by adding the following to the recipe:
-                        <literallayout class='monospaced'>
-     PARALLEL_MAKEINST = ""
-                        </literallayout>
-                        See
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PARALLEL_MAKEINST'><filename>PARALLEL_MAKEINST</filename></ulink>
-                        for additional information.
-                        </para></listitem>
-                    <listitem><para>
-                        If you need to install one or more custom CMake
-                        toolchain files that are supplied by the
-                        application you are building, install the files to
-                        <filename>${D}${datadir}/cmake/</filename> Modules
-                        during
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>.
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-        </section>
-
-        <section id='new-recipe-enabling-system-services'>
-            <title>Enabling System Services</title>
-
-            <para>
-                If you want to install a service, which is a process that
-                usually starts on boot and runs in the background, then
-                you must include some additional definitions in your recipe.
-            </para>
-
-            <para>
-                If you are adding services and the service initialization
-                script or the service file itself is not installed, you must
-                provide for that installation in your recipe using a
-                <filename>do_install_append</filename> function.
-                If your recipe already has a <filename>do_install</filename>
-                function, update the function near its end rather than
-                adding an additional <filename>do_install_append</filename>
-                function.
-            </para>
-
-            <para>
-                When you create the installation for your services, you need
-                to accomplish what is normally done by
-                <filename>make install</filename>.
-                In other words, make sure your installation arranges the output
-                similar to how it is arranged on the target system.
-            </para>
-
-            <para>
-                The OpenEmbedded build system provides support for starting
-                services two different ways:
-                <itemizedlist>
-                    <listitem><para><emphasis>SysVinit:</emphasis>
-                        SysVinit is a system and service manager that
-                        manages the init system used to control the very basic
-                        functions of your system.
-                        The init program is the first program
-                        started by the Linux kernel when the system boots.
-                        Init then controls the startup, running and shutdown
-                        of all other programs.</para>
-                        <para>To enable a service using SysVinit, your recipe
-                        needs to inherit the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-update-rc.d'><filename>update-rc.d</filename></ulink>
-                        class.
-                        The class helps facilitate safely installing the
-                        package on the target.</para>
-                        <para>You will need to set the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-INITSCRIPT_PACKAGES'><filename>INITSCRIPT_PACKAGES</filename></ulink>,
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-INITSCRIPT_NAME'><filename>INITSCRIPT_NAME</filename></ulink>,
-                        and
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-INITSCRIPT_PARAMS'><filename>INITSCRIPT_PARAMS</filename></ulink>
-                        variables within your recipe.</para></listitem>
-                    <listitem><para><emphasis>systemd:</emphasis>
-                        System Management Daemon (systemd) was designed to
-                        replace SysVinit and to provide
-                        enhanced management of services.
-                        For more information on systemd, see the systemd
-                        homepage at
-                        <ulink url='http://freedesktop.org/wiki/Software/systemd/'></ulink>.
-                        </para>
-                        <para>To enable a service using systemd, your recipe
-                        needs to inherit the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-systemd'><filename>systemd</filename></ulink>
-                        class.
-                        See the <filename>systemd.bbclass</filename> file
-                        located in your
-                        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>.
-                        section for more information.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='new-recipe-packaging'>
-            <title>Packaging</title>
-
-            <para>
-                Successful packaging is a combination of automated processes
-                performed by the OpenEmbedded build system and some
-                specific steps you need to take.
-                The following list describes the process:
-                <itemizedlist>
-                    <listitem><para><emphasis>Splitting Files</emphasis>:
-                        The <filename>do_package</filename> task splits the
-                        files produced by the recipe into logical components.
-                        Even software that produces a single binary might
-                        still have debug symbols, documentation, and other
-                        logical components that should be split out.
-                        The <filename>do_package</filename> task ensures
-                        that files are split up and packaged correctly.
-                        </para></listitem>
-                    <listitem><para><emphasis>Running QA Checks</emphasis>:
-                        The
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-insane'><filename>insane</filename></ulink>
-                        class adds a step to
-                        the package generation process so that output quality
-                        assurance checks are generated by the OpenEmbedded
-                        build system.
-                        This step performs a range of checks to be sure the
-                        build's output is free of common problems that show
-                        up during runtime.
-                        For information on these checks, see the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-insane'><filename>insane</filename></ulink>
-                        class and the
-                        "<ulink url='&YOCTO_DOCS_REF_URL;#ref-qa-checks'>QA Error and Warning Messages</ulink>"
-                        chapter in the Yocto Project Reference Manual.
-                        </para></listitem>
-                    <listitem><para><emphasis>Hand-Checking Your Packages</emphasis>:
-                        After you build your software, you need to be sure
-                        your packages are correct.
-                        Examine the
-                        <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink><filename>}/packages-split</filename>
-                        directory and make sure files are where you expect
-                        them to be.
-                        If you discover problems, you can set
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGES'><filename>PACKAGES</filename></ulink>,
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-FILES'><filename>FILES</filename></ulink>,
-                        <filename>do_install(_append)</filename>, and so forth as
-                        needed.
-                        </para></listitem>
-                    <listitem><para><emphasis>Splitting an Application into Multiple Packages</emphasis>:
-                        If you need to split an application into several
-                        packages, see the
-                        "<link linkend='splitting-an-application-into-multiple-packages'>Splitting an Application into Multiple Packages</link>"
-                        section for an example.
-                        </para></listitem>
-                    <listitem><para><emphasis>Installing a Post-Installation Script</emphasis>:
-                        For an example showing how to install a
-                        post-installation script, see the
-                        "<link linkend='new-recipe-post-installation-scripts'>Post-Installation Scripts</link>"
-                        section.
-                        </para></listitem>
-                    <listitem><para><emphasis>Marking Package Architecture</emphasis>:
-                        Depending on what your recipe is building and how it
-                        is configured, it might be important to mark the
-                        packages produced as being specific to a particular
-                        machine, or to mark them as not being specific to
-                        a particular machine or architecture at all.</para>
-                        <para>By default, packages apply to any machine with the
-                        same architecture as the target machine.
-                        When a recipe produces packages that are
-                        machine-specific (e.g. the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
-                        value is passed into the configure script or a patch
-                        is applied only for a particular machine), you should
-                        mark them as such by adding the following to the
-                        recipe:
-                        <literallayout class='monospaced'>
-     PACKAGE_ARCH = "${MACHINE_ARCH}"
-                        </literallayout></para>
-                        <para>On the other hand, if the recipe produces packages
-                        that do not contain anything specific to the target
-                        machine or architecture at all (e.g. recipes
-                        that simply package script files or configuration
-                        files), you should use the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-allarch'><filename>allarch</filename></ulink>
-                        class to do this for you by adding this to your
-                        recipe:
-                        <literallayout class='monospaced'>
-     inherit allarch
-                        </literallayout>
-                        Ensuring that the package architecture is correct is
-                        not critical while you are doing the first few builds
-                        of your recipe.
-                        However, it is important in order
-                        to ensure that your recipe rebuilds (or does not
-                        rebuild) appropriately in response to changes in
-                        configuration, and to ensure that you get the
-                        appropriate packages installed on the target machine,
-                        particularly if you run separate builds for more
-                        than one target machine.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='new-sharing-files-between-recipes'>
-            <title>Sharing Files Between Recipes</title>
-
-            <para>
-                Recipes often need to use files provided by other recipes on
-                the build host.
-                For example, an application linking to a common library needs
-                access to the library itself and its associated headers.
-                The way this access is accomplished is by populating a sysroot
-                with files.
-                Each recipe has two sysroots in its work directory, one for
-                target files
-                (<filename>recipe-sysroot</filename>) and one for files that
-                are native to the build host
-                (<filename>recipe-sysroot-native</filename>).
-                <note>
-                    You could find the term "staging" used within the Yocto
-                    project regarding files populating sysroots (e.g. the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-STAGING_DIR'><filename>STAGING_DIR</filename></ulink>
-                    variable).
-                </note>
-            </para>
-
-            <para>
-                Recipes should never populate the sysroot directly (i.e. write
-                files into sysroot).
-                Instead, files should be installed into standard locations
-                during the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>
-                task within the
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-D'><filename>D</filename></ulink><filename>}</filename>
-                directory.
-                The reason for this limitation is that almost all files that
-                populate the sysroot are cataloged in manifests in order to
-                ensure the files can be removed later when a recipe is either
-                modified or removed.
-                Thus, the sysroot is able to remain free from stale files.
-            </para>
-
-            <para>
-                A subset of the files installed by the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>
-                task are used by the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></ulink>
-                task as defined by the the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SYSROOT_DIRS'><filename>SYSROOT_DIRS</filename></ulink>
-                variable to automatically populate the sysroot.
-                It is possible to modify the list of directories that populate
-                the sysroot.
-                The following example shows how you could add the
-                <filename>/opt</filename> directory to the list of
-                directories within a recipe:
-                <literallayout class='monospaced'>
-     SYSROOT_DIRS += "/opt"
-                </literallayout>
-            </para>
-
-            <para>
-                For a more complete description of the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></ulink>
-                task and its associated functions, see the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-staging'><filename>staging</filename></ulink>
-                class.
-            </para>
-        </section>
-
-        <section id='metadata-virtual-providers'>
-            <title>Using Virtual Providers</title>
-
-            <para>
-                Prior to a build, if you know that several different recipes
-                provide the same functionality, you can use a virtual provider
-                (i.e. <filename>virtual/*</filename>) as a placeholder for the
-                actual provider.
-                The actual provider is determined at build-time.
-            </para>
-
-            <para>
-                A common scenario where a virtual provider is used would be
-                for the kernel recipe.
-                Suppose you have three kernel recipes whose
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink>
-                values map to <filename>kernel-big</filename>,
-                <filename>kernel-mid</filename>, and
-                <filename>kernel-small</filename>.
-                Furthermore, each of these recipes in some way uses a
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PROVIDES'><filename>PROVIDES</filename></ulink>
-                statement that essentially identifies itself as being able
-                to provide <filename>virtual/kernel</filename>.
-                Here is one way through the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-kernel'><filename>kernel</filename></ulink>
-                class:
-                <literallayout class='monospaced'>
-     PROVIDES += "${@ "virtual/kernel" if (d.getVar("KERNEL_PACKAGE_NAME") == "kernel") else "" }"
-                </literallayout>
-                Any recipe that inherits the <filename>kernel</filename> class
-                is going to utilize a <filename>PROVIDES</filename> statement
-                that identifies that recipe as being able to provide the
-                <filename>virtual/kernel</filename> item.
-            </para>
-
-            <para>
-                Now comes the time to actually build an image and you need a
-                kernel recipe, but which one?
-                You can configure your build to call out the kernel recipe
-                you want by using the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PREFERRED_PROVIDER'><filename>PREFERRED_PROVIDER</filename></ulink>
-                variable.
-                As an example, consider the
-                <ulink url='https://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/meta/conf/machine/include/x86-base.inc'><filename>x86-base.inc</filename></ulink>
-                include file, which is a machine
-                (i.e. <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>)
-                configuration file.
-                This include file is the reason all x86-based machines use the
-                <filename>linux-yocto</filename> kernel.
-                Here are the relevant lines from the include file:
-                <literallayout class='monospaced'>
-     PREFERRED_PROVIDER_virtual/kernel ??= "linux-yocto"
-     PREFERRED_VERSION_linux-yocto ??= "4.15%"
-                </literallayout>
-            </para>
-
-            <para>
-                When you use a virtual provider, you do not have to
-                "hard code" a recipe name as a build dependency.
-                You can use the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPENDS'><filename>DEPENDS</filename></ulink>
-                variable to state the build is dependent on
-                <filename>virtual/kernel</filename> for example:
-                <literallayout class='monospaced'>
-     DEPENDS = "virtual/kernel"
-                </literallayout>
-                During the build, the OpenEmbedded build system picks
-                the correct recipe needed for the
-                <filename>virtual/kernel</filename> dependency based on the
-                <filename>PREFERRED_PROVIDER</filename> variable.
-                If you want to use the small kernel mentioned at the beginning
-                of this section, configure your build as follows:
-                <literallayout class='monospaced'>
-     PREFERRED_PROVIDER_virtual/kernel ??= "kernel-small"
-                </literallayout>
-                <note>
-                    Any recipe that
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PROVIDES'><filename>PROVIDES</filename></ulink>
-                    a <filename>virtual/*</filename> item that is ultimately
-                    not selected through
-                    <filename>PREFERRED_PROVIDER</filename> does not get built.
-                    Preventing these recipes from building is usually the
-                    desired behavior since this mechanism's purpose is to
-                    select between mutually exclusive alternative providers.
-                </note>
-            </para>
-
-            <para>
-                The following lists specific examples of virtual providers:
-                <itemizedlist>
-                    <listitem><para>
-                        <filename>virtual/kernel</filename>:
-                        Provides the name of the kernel recipe to use when
-                        building a kernel image.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>virtual/bootloader</filename>:
-                        Provides the name of the bootloader to use when
-                        building an image.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>virtual/libgbm</filename>:
-                        Provides <filename>gbm.pc</filename>.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>virtual/egl</filename>:
-                        Provides <filename>egl.pc</filename> and possibly
-                        <filename>wayland-egl.pc</filename>.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>virtual/libgl</filename>:
-                        Provides <filename>gl.pc</filename> (i.e. libGL).
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>virtual/libgles1</filename>:
-                        Provides <filename>glesv1_cm.pc</filename>
-                        (i.e. libGLESv1_CM).
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>virtual/libgles2</filename>:
-                        Provides <filename>glesv2.pc</filename>
-                        (i.e. libGLESv2).
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='properly-versioning-pre-release-recipes'>
-            <title>Properly Versioning Pre-Release Recipes</title>
-
-            <para>
-                Sometimes the name of a recipe can lead to versioning
-                problems when the recipe is upgraded to a final release.
-                For example, consider the
-                <filename>irssi_0.8.16-rc1.bb</filename> recipe file in
-                the list of example recipes in the
-                "<link linkend='new-recipe-storing-and-naming-the-recipe'>Storing and Naming the Recipe</link>"
-                section.
-                This recipe is at a release candidate stage (i.e.
-                "rc1").
-                When the recipe is released, the recipe filename becomes
-                <filename>irssi_0.8.16.bb</filename>.
-                The version change from <filename>0.8.16-rc1</filename>
-                to <filename>0.8.16</filename> is seen as a decrease by the
-                build system and package managers, so the resulting packages
-                will not correctly trigger an upgrade.
-            </para>
-
-            <para>
-                In order to ensure the versions compare properly, the
-                recommended convention is to set
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>
-                within the recipe to
-                "<replaceable>previous_version</replaceable>+<replaceable>current_version</replaceable>".
-                You can use an additional variable so that you can use the
-                current version elsewhere.
-                Here is an example:
-                <literallayout class='monospaced'>
-     REALPV = "0.8.16-rc1"
-     PV = "0.8.15+${REALPV}"
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='new-recipe-post-installation-scripts'>
-            <title>Post-Installation Scripts</title>
-
-            <para>
-                Post-installation scripts run immediately after installing
-                a package on the target or during image creation when a
-                package is included in an image.
-                To add a post-installation script to a package, add a
-                <filename>pkg_postinst_</filename><replaceable>PACKAGENAME</replaceable><filename>()</filename> function to
-                the recipe file (<filename>.bb</filename>) and replace
-                <replaceable>PACKAGENAME</replaceable> with the name of the package
-                you want to attach to the <filename>postinst</filename>
-                script.
-                To apply the post-installation script to the main package
-                for the recipe, which is usually what is required, specify
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink><filename>}</filename>
-                in place of <replaceable>PACKAGENAME</replaceable>.
-            </para>
-
-            <para>
-                A post-installation function has the following structure:
-                <literallayout class='monospaced'>
-     pkg_postinst_<replaceable>PACKAGENAME</replaceable>() {
-     # Commands to carry out
-     }
-                </literallayout>
-            </para>
-
-            <para>
-                The script defined in the post-installation function is
-                called when the root filesystem is created.
-                If the script succeeds, the package is marked as installed.
-                <note>
-                    Any RPM post-installation script that runs on the target
-                    should return a 0 exit code.
-                    RPM does not allow non-zero exit codes for these scripts,
-                    and the RPM package manager will cause the package to fail
-                    installation on the target.
-                </note>
-            </para>
-
-            <para>
-                Sometimes it is necessary for the execution of a
-                post-installation script to be delayed until the first boot.
-                For example, the script might need to be executed on the
-                device itself.
-                To delay script execution until boot time, you must explicitly
-                mark post installs to defer to the target.
-                You can use <filename>pkg_postinst_ontarget()</filename> or
-                call
-                <filename>postinst_intercept delay_to_first_boot</filename>
-                from <filename>pkg_postinst()</filename>.
-                Any failure of a <filename>pkg_postinst()</filename> script
-                (including exit 1) triggers an error during the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-rootfs'><filename>do_rootfs</filename></ulink>
-                task.
-            </para>
-
-            <para>
-                If you have recipes that use
-                <filename>pkg_postinst</filename> function
-                and they require the use of non-standard native
-                tools that have dependencies during rootfs construction, you
-                need to use the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_WRITE_DEPS'><filename>PACKAGE_WRITE_DEPS</filename></ulink>
-                variable in your recipe to list these tools.
-                If you do not use this variable, the tools might be missing and
-                execution of the post-installation script is deferred until
-                first boot.
-                Deferring the script to first boot is undesirable and for
-                read-only rootfs impossible.
-            </para>
-
-            <note>
-                Equivalent support for pre-install, pre-uninstall, and
-                post-uninstall scripts exist by way of
-                <filename>pkg_preinst</filename>,
-                <filename>pkg_prerm</filename>, and
-                <filename>pkg_postrm</filename>, respectively.
-                These scrips work in exactly the same way as does
-                <filename>pkg_postinst</filename> with the exception
-                that they run at different times.
-                Also, because of when they run, they are not applicable to
-                being run at image creation time like
-                <filename>pkg_postinst</filename>.
-            </note>
-        </section>
-
-        <section id='new-recipe-testing'>
-            <title>Testing</title>
-
-            <para>
-                The final step for completing your recipe is to be sure that
-                the software you built runs correctly.
-                To accomplish runtime testing, add the build's output
-                packages to your image and test them on the target.
-            </para>
-
-            <para>
-                For information on how to customize your image by adding
-                specific packages, see the
-                "<link linkend='usingpoky-extend-customimage'>Customizing Images</link>"
-                section.
-            </para>
-        </section>
-
-        <section id='new-recipe-testing-examples'>
-            <title>Examples</title>
-
-            <para>
-                To help summarize how to write a recipe, this section provides
-                some examples given various scenarios:
-                <itemizedlist>
-                    <listitem><para>Recipes that use local files</para></listitem>
-                    <listitem><para>Using an Autotooled package</para></listitem>
-                    <listitem><para>Using a Makefile-based package</para></listitem>
-                    <listitem><para>Splitting an application into multiple packages</para></listitem>
-                    <listitem><para>Adding binaries to an image</para></listitem>
-                </itemizedlist>
-            </para>
-
-            <section id='new-recipe-single-c-file-package-hello-world'>
-                <title>Single .c File Package (Hello World!)</title>
-
-                <para>
-                    Building an application from a single file that is stored
-                    locally (e.g. under <filename>files</filename>) requires
-                    a recipe that has the file listed in the
-                    <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'>SRC_URI</ulink></filename>
-                    variable.
-                    Additionally, you need to manually write the
-                    <filename>do_compile</filename> and
-                    <filename>do_install</filename> tasks.
-                    The <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-S'>S</ulink></filename>
-                    variable defines the directory containing the source code,
-                    which is set to
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink>
-                    in this case - the directory BitBake uses for the build.
-                    <literallayout class='monospaced'>
-     SUMMARY = "Simple helloworld application"
-     SECTION = "examples"
-     LICENSE = "MIT"
-     LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
-
-     SRC_URI = "file://helloworld.c"
-
-     S = "${WORKDIR}"
-
-     do_compile() {
-     	${CC} helloworld.c -o helloworld
-     }
-
-     do_install() {
-     	install -d ${D}${bindir}
-     	install -m 0755 helloworld ${D}${bindir}
-     }
-                    </literallayout>
-                </para>
-
-                <para>
-                    By default, the <filename>helloworld</filename>,
-                    <filename>helloworld-dbg</filename>, and
-                    <filename>helloworld-dev</filename> packages are built.
-                    For information on how to customize the packaging process,
-                    see the
-                    "<link linkend='splitting-an-application-into-multiple-packages'>Splitting an Application into Multiple Packages</link>"
-                    section.
-                </para>
-            </section>
-
-            <section id='new-recipe-autotooled-package'>
-                <title>Autotooled Package</title>
-                <para>
-                    Applications that use Autotools such as <filename>autoconf</filename> and
-                    <filename>automake</filename> require a recipe that has a source archive listed in
-                    <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'>SRC_URI</ulink></filename> and
-                    also inherit the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-autotools'><filename>autotools</filename></ulink>
-                    class, which contains the definitions of all the steps
-                    needed to build an Autotool-based application.
-                    The result of the build is automatically packaged.
-                    And, if the application uses NLS for localization, packages with local information are
-                    generated (one package per language).
-                    Following is one example: (<filename>hello_2.3.bb</filename>)
-                    <literallayout class='monospaced'>
-     SUMMARY = "GNU Helloworld application"
-     SECTION = "examples"
-     LICENSE = "GPLv2+"
-     LIC_FILES_CHKSUM = "file://COPYING;md5=751419260aa954499f7abaabaa882bbe"
-
-     SRC_URI = "${GNU_MIRROR}/hello/hello-${PV}.tar.gz"
-
-     inherit autotools gettext
-                     </literallayout>
-                </para>
-
-                <para>
-                    The variable
-                    <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-LIC_FILES_CHKSUM'>LIC_FILES_CHKSUM</ulink></filename>
-                    is used to track source license changes as described in the
-                    "<link linkend='usingpoky-configuring-LIC_FILES_CHKSUM'>Tracking License Changes</link>"
-                    section in the Yocto Project Overview and Concepts Manual.
-                    You can quickly create Autotool-based recipes in a manner
-                    similar to the previous example.
-                </para>
-            </section>
-
-            <section id='new-recipe-makefile-based-package'>
-                <title>Makefile-Based Package</title>
-
-                <para>
-                    Applications that use GNU <filename>make</filename> also require a recipe that has
-                    the source archive listed in
-                    <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'>SRC_URI</ulink></filename>.
-                    You do not need to add a <filename>do_compile</filename> step since by default BitBake
-                    starts the <filename>make</filename> command to compile the application.
-                    If you need additional <filename>make</filename> options, you should store them in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_OEMAKE'><filename>EXTRA_OEMAKE</filename></ulink>
-                    or
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGECONFIG_CONFARGS'><filename>PACKAGECONFIG_CONFARGS</filename></ulink>
-                    variables.
-                    BitBake passes these options into the GNU <filename>make</filename> invocation.
-                    Note that a <filename>do_install</filename> task is still required.
-                    Otherwise, BitBake runs an empty <filename>do_install</filename> task by default.
-                </para>
-
-               <para>
-                    Some applications might require extra parameters to be passed to the compiler.
-                    For example, the application might need an additional header path.
-                    You can accomplish this by adding to the
-                    <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-CFLAGS'>CFLAGS</ulink></filename> variable.
-                    The following example shows this:
-                    <literallayout class='monospaced'>
-     CFLAGS_prepend = "-I ${S}/include "
-                    </literallayout>
-                </para>
-
-                <para>
-                In the following example, <filename>mtd-utils</filename> is a makefile-based package:
-                    <literallayout class='monospaced'>
-     SUMMARY = "Tools for managing memory technology devices"
-     SECTION = "base"
-     DEPENDS = "zlib lzo e2fsprogs util-linux"
-     HOMEPAGE = "http://www.linux-mtd.infradead.org/"
-     LICENSE = "GPLv2+"
-     LIC_FILES_CHKSUM = "file://COPYING;md5=0636e73ff0215e8d672dc4c32c317bb3 \
-                         file://include/common.h;beginline=1;endline=17;md5=ba05b07912a44ea2bf81ce409380049c"
-
-     # Use the latest version at 26 Oct, 2013
-     SRCREV = "9f107132a6a073cce37434ca9cda6917dd8d866b"
-     SRC_URI = "git://git.infradead.org/mtd-utils.git \
-                     file://add-exclusion-to-mkfs-jffs2-git-2.patch \
-     "
-
-     PV = "1.5.1+git${SRCPV}"
-
-     S = "${WORKDIR}/git"
-
-     EXTRA_OEMAKE = "'CC=${CC}' 'RANLIB=${RANLIB}' 'AR=${AR}' 'CFLAGS=${CFLAGS} -I${S}/include -DWITHOUT_XATTR' 'BUILDDIR=${S}'"
-
-     do_install () {
-             oe_runmake install DESTDIR=${D} SBINDIR=${sbindir} MANDIR=${mandir} INCLUDEDIR=${includedir}
-     }
-
-     PACKAGES =+ "mtd-utils-jffs2 mtd-utils-ubifs mtd-utils-misc"
-
-     FILES_mtd-utils-jffs2 = "${sbindir}/mkfs.jffs2 ${sbindir}/jffs2dump ${sbindir}/jffs2reader ${sbindir}/sumtool"
-     FILES_mtd-utils-ubifs = "${sbindir}/mkfs.ubifs ${sbindir}/ubi*"
-     FILES_mtd-utils-misc = "${sbindir}/nftl* ${sbindir}/ftl* ${sbindir}/rfd* ${sbindir}/doc* ${sbindir}/serve_image ${sbindir}/recv_image"
-
-     PARALLEL_MAKE = ""
-
-     BBCLASSEXTEND = "native"
-                    </literallayout>
-                </para>
-            </section>
-
-            <section id='splitting-an-application-into-multiple-packages'>
-                <title>Splitting an Application into Multiple Packages</title>
-
-                <para>
-                    You can use the variables
-                    <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGES'>PACKAGES</ulink></filename> and
-                    <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-FILES'>FILES</ulink></filename>
-                    to split an application into multiple packages.
-                </para>
-
-                <para>
-                    Following is an example that uses the <filename>libxpm</filename> recipe.
-                    By default, this recipe generates a single package that contains the library along
-                    with a few binaries.
-                    You can modify the recipe to split the binaries into separate packages:
-                    <literallayout class='monospaced'>
-     require xorg-lib-common.inc
-
-     SUMMARY = "Xpm: X Pixmap extension library"
-     LICENSE = "BSD"
-     LIC_FILES_CHKSUM = "file://COPYING;md5=51f4270b012ecd4ab1a164f5f4ed6cf7"
-     DEPENDS += "libxext libsm libxt"
-     PE = "1"
-
-     XORG_PN = "libXpm"
-
-     PACKAGES =+ "sxpm cxpm"
-     FILES_cxpm = "${bindir}/cxpm"
-     FILES_sxpm = "${bindir}/sxpm"
-                    </literallayout>
-                </para>
-
-                <para>
-                    In the previous example, we want to ship the <filename>sxpm</filename>
-                    and <filename>cxpm</filename> binaries in separate packages.
-                    Since <filename>bindir</filename> would be packaged into the main
-                    <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PN'>PN</ulink></filename>
-                    package by default, we prepend the <filename>PACKAGES</filename>
-                    variable so additional package names are added to the start of list.
-                    This results in the extra <filename>FILES_*</filename>
-                    variables then containing information that define which files and
-                    directories go into which packages.
-                    Files included by earlier packages are skipped by latter packages.
-                    Thus, the main <filename>PN</filename> package
-                    does not include the above listed files.
-                </para>
-            </section>
-
-            <section id='packaging-externally-produced-binaries'>
-                <title>Packaging Externally Produced Binaries</title>
-
-                <para>
-                    Sometimes, you need to add pre-compiled binaries to an
-                    image.
-                    For example, suppose that binaries for proprietary code
-                    exist, which are created by a particular division of a
-                    company.
-                    Your part of the company needs to use those binaries as
-                    part of an image that you are building using the
-                    OpenEmbedded build system.
-                    Since you only have the binaries and not the source code,
-                    you cannot use a typical recipe that expects to fetch the
-                    source specified in
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                    and then compile it.
-                </para>
-
-                <para>
-                    One method is to package the binaries and then install them
-                    as part of the image.
-                    Generally, it is not a good idea to package binaries
-                    since, among other things, it can hinder the ability to
-                    reproduce builds and could lead to compatibility problems
-                    with ABI in the future.
-                    However, sometimes you have no choice.
-                </para>
-
-                <para>
-                    The easiest solution is to create a recipe that uses
-                    the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-bin-package'><filename>bin_package</filename></ulink>
-                    class and to be sure that you are using default locations
-                    for build artifacts.
-                    In most cases, the <filename>bin_package</filename> class
-                    handles "skipping" the configure and compile steps as well
-                    as sets things up to grab packages from the appropriate
-                    area.
-                    In particular, this class sets <filename>noexec</filename>
-                    on both the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-configure'><filename>do_configure</filename></ulink>
-                    and
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-compile'><filename>do_compile</filename></ulink>
-                    tasks, sets
-                    <filename>FILES_${PN}</filename> to "/" so that it picks
-                    up all files, and sets up a
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>
-                    task, which effectively copies all files from
-                    <filename>${S}</filename> to <filename>${D}</filename>.
-                    The <filename>bin_package</filename> class works well when
-                    the files extracted into <filename>${S}</filename> are
-                    already laid out in the way they should be laid out
-                    on the target.
-                    For more information on these variables, see the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-FILES'><filename>FILES</filename></ulink>,
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink>,
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-S'><filename>S</filename></ulink>,
-                    and
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-D'><filename>D</filename></ulink>
-                    variables in the Yocto Project Reference Manual's variable
-                    glossary.
-                    <note><title>Notes</title>
-                        <itemizedlist>
-                            <listitem><para>
-                                Using
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPENDS'><filename>DEPENDS</filename></ulink>
-                                is a good idea even for components distributed
-                                in binary form, and is often necessary for
-                                shared libraries.
-                                For a shared library, listing the library
-                                dependencies in
-                                <filename>DEPENDS</filename> makes sure that
-                                the libraries are available in the staging
-                                sysroot when other recipes link against the
-                                library, which might be necessary for
-                                successful linking.
-                                </para></listitem>
-                            <listitem><para>
-                                Using <filename>DEPENDS</filename> also
-                                allows runtime dependencies between packages
-                                to be added automatically.
-                                See the
-                                "<ulink url='&YOCTO_DOCS_OM_URL;#automatically-added-runtime-dependencies'>Automatically Added Runtime Dependencies</ulink>"
-                                section in the Yocto Project Overview and
-                                Concepts Manual for more information.
-                                </para></listitem>
-                        </itemizedlist>
-                    </note>
-                </para>
-
-                <para>
-                    If you cannot use the <filename>bin_package</filename>
-                    class, you need to be sure you are doing the following:
-                    <itemizedlist>
-                        <listitem><para>
-                            Create a recipe where the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-configure'><filename>do_configure</filename></ulink>
-                            and
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-compile'><filename>do_compile</filename></ulink>
-                            tasks do nothing:
-                            It is usually sufficient to just not define these
-                            tasks in the recipe, because the default
-                            implementations do nothing unless a Makefile is
-                            found in
-                            <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-S'><filename>S</filename></ulink><filename>}</filename>.
-                            </para>
-
-                            <para>If
-                            <filename>${S}</filename> might contain a Makefile,
-                            or if you inherit some class that replaces
-                            <filename>do_configure</filename> and
-                            <filename>do_compile</filename> with custom
-                            versions, then you can use the
-                            <filename>[</filename><ulink url='&YOCTO_DOCS_BB_URL;#variable-flags'><filename>noexec</filename></ulink><filename>]</filename>
-                            flag to turn the tasks into no-ops, as follows:
-                            <literallayout class='monospaced'>
-     do_configure[noexec] = "1"
-     do_compile[noexec] = "1"
-                            </literallayout>
-                            Unlike
-                            <ulink url='&YOCTO_DOCS_BB_URL;#deleting-a-task'><filename>deleting the tasks</filename></ulink>,
-                            using the flag preserves the dependency chain from
-                            the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-fetch'><filename>do_fetch</filename></ulink>,                     <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-unpack'><filename>do_unpack</filename></ulink>,
-                            and
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-patch'><filename>do_patch</filename></ulink>
-                            tasks to the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>
-                            task.
-                            </para></listitem>
-                        <listitem><para>Make sure your
-                            <filename>do_install</filename> task installs the
-                            binaries appropriately.
-                            </para></listitem>
-                        <listitem><para>Ensure that you set up
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-FILES'><filename>FILES</filename></ulink>
-                            (usually
-                            <filename>FILES_${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink><filename>}</filename>)
-                            to point to the files you have installed, which of
-                            course depends on where you have installed them
-                            and whether those files are in different locations
-                            than the defaults.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-        </section>
-
-        <section id="following-recipe-style-guidelines">
-            <title>Following Recipe Style Guidelines</title>
-
-            <para>
-                When writing recipes, it is good to conform to existing
-                style guidelines.
-                The
-                <ulink url='http://www.openembedded.org/wiki/Styleguide'>OpenEmbedded Styleguide</ulink>
-                wiki page provides rough guidelines for preferred recipe style.
-            </para>
-
-            <para>
-                It is common for existing recipes to deviate a bit from this
-                style.
-                However, aiming for at least a consistent style is a good idea.
-                Some practices, such as omitting spaces around
-                <filename>=</filename> operators in assignments or ordering
-                recipe components in an erratic way, are widely seen as poor
-                style.
-            </para>
-        </section>
-
-        <section id='recipe-syntax'>
-            <title>Recipe Syntax</title>
-
-            <para>
-                Understanding recipe file syntax is important for writing
-                recipes.
-                The following list overviews the basic items that make up a
-                BitBake recipe file.
-                For more complete BitBake syntax descriptions, see the
-                "<ulink url='&YOCTO_DOCS_BB_URL;#bitbake-user-manual-metadata'>Syntax and Operators</ulink>"
-                chapter of the BitBake User Manual.
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>Variable Assignments and Manipulations:</emphasis>
-                        Variable assignments allow a value to be assigned to a
-                        variable.
-                        The assignment can be static text or might include
-                        the contents of other variables.
-                        In addition to the assignment, appending and prepending
-                        operations are also supported.</para>
-
-                        <para>The following example shows some of the ways
-                        you can use variables in recipes:
-                        <literallayout class='monospaced'>
-     S = "${WORKDIR}/postfix-${PV}"
-     CFLAGS += "-DNO_ASM"
-     SRC_URI_append = " file://fixup.patch"
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Functions:</emphasis>
-                        Functions provide a series of actions to be performed.
-                        You usually use functions to override the default
-                        implementation of a task function or to complement
-                        a default function (i.e. append or prepend to an
-                        existing function).
-                        Standard functions use <filename>sh</filename> shell
-                        syntax, although access to OpenEmbedded variables and
-                        internal methods are also available.</para>
-
-                        <para>The following is an example function from the
-                        <filename>sed</filename> recipe:
-                        <literallayout class='monospaced'>
-     do_install () {
-         autotools_do_install
-         install -d ${D}${base_bindir}
-         mv ${D}${bindir}/sed ${D}${base_bindir}/sed
-         rmdir ${D}${bindir}/
-     }
-                        </literallayout>
-                        It is also possible to implement new functions that
-                        are called between existing tasks as long as the
-                        new functions are not replacing or complementing the
-                        default functions.
-                        You can implement functions in Python
-                        instead of shell.
-                        Both of these options are not seen in the majority of
-                        recipes.
-                        </para></listitem>
-                    <listitem><para><emphasis>Keywords:</emphasis>
-                        BitBake recipes use only a few keywords.
-                        You use keywords to include common
-                        functions (<filename>inherit</filename>), load parts
-                        of a recipe from other files
-                        (<filename>include</filename> and
-                        <filename>require</filename>) and export variables
-                        to the environment (<filename>export</filename>).
-                        </para>
-
-                        <para>The following example shows the use of some of
-                        these keywords:
-                        <literallayout class='monospaced'>
-     export POSTCONF = "${STAGING_BINDIR}/postconf"
-     inherit autoconf
-     require otherfile.inc
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Comments (#):</emphasis>
-                        Any lines that begin with the hash character
-                        (<filename>#</filename>) are treated as comment lines
-                        and are ignored:
-                        <literallayout class='monospaced'>
-     # This is a comment
-                        </literallayout>
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                This next list summarizes the most important and most commonly
-                used parts of the recipe syntax.
-                For more information on these parts of the syntax, you can
-                reference the
-                <ulink url='&YOCTO_DOCS_BB_URL;#bitbake-user-manual-metadata'>Syntax and Operators</ulink>
-                chapter in the BitBake User Manual.
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>Line Continuation (\):</emphasis>
-                        Use the backward slash (<filename>\</filename>)
-                        character to split a statement over multiple lines.
-                        Place the slash character at the end of the line that
-                        is to be continued on the next line:
-                        <literallayout class='monospaced'>
-     VAR = "A really long \
-            line"
-                        </literallayout>
-                        <note>
-                            You cannot have any characters including spaces
-                            or tabs after the slash character.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Using Variables (${<replaceable>VARNAME</replaceable>}):</emphasis>
-                        Use the <filename>${<replaceable>VARNAME</replaceable>}</filename>
-                        syntax to access the contents of a variable:
-                        <literallayout class='monospaced'>
-     SRC_URI = "${SOURCEFORGE_MIRROR}/libpng/zlib-${PV}.tar.gz"
-                        </literallayout>
-                        <note>
-                            It is important to understand that the value of a
-                            variable expressed in this form does not get
-                            substituted automatically.
-                            The expansion of these expressions happens
-                            on-demand later (e.g. usually when a function that
-                            makes reference to the variable executes).
-                            This behavior ensures that the values are most
-                            appropriate for the context in which they are
-                            finally used.
-                            On the rare occasion that you do need the variable
-                            expression to be expanded immediately, you can use
-                            the <filename>:=</filename> operator instead of
-                            <filename>=</filename> when you make the
-                            assignment, but this is not generally needed.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Quote All Assignments ("<replaceable>value</replaceable>"):</emphasis>
-                        Use double quotes around values in all variable
-                        assignments (e.g.
-                        <filename>"<replaceable>value</replaceable>"</filename>).
-                        Following is an example:
-                        <literallayout class='monospaced'>
-     VAR1 = "${OTHERVAR}"
-     VAR2 = "The version is ${PV}"
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Conditional Assignment (?=):</emphasis>
-                        Conditional assignment is used to assign a
-                        value to a variable, but only when the variable is
-                        currently unset.
-                        Use the question mark followed by the equal sign
-                        (<filename>?=</filename>) to make a "soft" assignment
-                        used for conditional assignment.
-                        Typically, "soft" assignments are used in the
-                        <filename>local.conf</filename> file for variables
-                        that are allowed to come through from the external
-                        environment.
-                        </para>
-
-                        <para>Here is an example where
-                        <filename>VAR1</filename> is set to "New value" if
-                        it is currently empty.
-                        However, if <filename>VAR1</filename> has already been
-                        set, it remains unchanged:
-                        <literallayout class='monospaced'>
-     VAR1 ?= "New value"
-                        </literallayout>
-                        In this next example, <filename>VAR1</filename>
-                        is left with the value "Original value":
-                        <literallayout class='monospaced'>
-     VAR1 = "Original value"
-     VAR1 ?= "New value"
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Appending (+=):</emphasis>
-                        Use the plus character followed by the equals sign
-                        (<filename>+=</filename>) to append values to existing
-                        variables.
-                        <note>
-                            This operator adds a space between the existing
-                            content of the variable and the new content.
-                        </note></para>
-
-                        <para>Here is an example:
-                        <literallayout class='monospaced'>
-     SRC_URI += "file://fix-makefile.patch"
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Prepending (=+):</emphasis>
-                        Use the equals sign followed by the plus character
-                        (<filename>=+</filename>) to prepend values to existing
-                        variables.
-                        <note>
-                            This operator adds a space between the new content
-                            and the existing content of the variable.
-                        </note></para>
-
-                        <para>Here is an example:
-                        <literallayout class='monospaced'>
-     VAR =+ "Starts"
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Appending (_append):</emphasis>
-                        Use the <filename>_append</filename> operator to
-                        append values to existing variables.
-                        This operator does not add any additional space.
-                        Also, the operator is applied after all the
-                        <filename>+=</filename>, and
-                        <filename>=+</filename> operators have been applied and
-                        after all <filename>=</filename> assignments have
-                        occurred.
-                        </para>
-
-                        <para>The following example shows the space being
-                        explicitly added to the start to ensure the appended
-                        value is not merged with the existing value:
-                        <literallayout class='monospaced'>
-     SRC_URI_append = " file://fix-makefile.patch"
-                        </literallayout>
-                        You can also use the <filename>_append</filename>
-                        operator with overrides, which results in the actions
-                        only being performed for the specified target or
-                        machine:
-                        <literallayout class='monospaced'>
-     SRC_URI_append_sh4 = " file://fix-makefile.patch"
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Prepending (_prepend):</emphasis>
-                        Use the <filename>_prepend</filename> operator to
-                        prepend values to existing variables.
-                        This operator does not add any additional space.
-                        Also, the operator is applied after all the
-                        <filename>+=</filename>, and
-                        <filename>=+</filename> operators have been applied and
-                        after all <filename>=</filename> assignments have
-                        occurred.
-                        </para>
-
-                        <para>The following example shows the space being
-                        explicitly added to the end to ensure the prepended
-                        value is not merged with the existing value:
-                        <literallayout class='monospaced'>
-     CFLAGS_prepend = "-I${S}/myincludes "
-                        </literallayout>
-                        You can also use the <filename>_prepend</filename>
-                        operator with overrides, which results in the actions
-                        only being performed for the specified target or
-                        machine:
-                        <literallayout class='monospaced'>
-     CFLAGS_prepend_sh4 = "-I${S}/myincludes "
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Overrides:</emphasis>
-                        You can use overrides to set a value conditionally,
-                        typically based on how the recipe is being built.
-                        For example, to set the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-KBRANCH'><filename>KBRANCH</filename></ulink>
-                        variable's value to "standard/base" for any target
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>,
-                        except for qemuarm where it should be set to
-                        "standard/arm-versatile-926ejs", you would do the
-                        following:
-                        <literallayout class='monospaced'>
-     KBRANCH = "standard/base"
-     KBRANCH_qemuarm  = "standard/arm-versatile-926ejs"
-                        </literallayout>
-                        Overrides are also used to separate alternate values
-                        of a variable in other situations.
-                        For example, when setting variables such as
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-FILES'><filename>FILES</filename></ulink>
-                        and
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-RDEPENDS'><filename>RDEPENDS</filename></ulink>
-                        that are specific to individual packages produced by
-                        a recipe, you should always use an override that
-                        specifies the name of the package.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Indentation:</emphasis>
-                        Use spaces for indentation rather than than tabs.
-                        For shell functions, both currently work.
-                        However, it is a policy decision of the Yocto Project
-                        to use tabs in shell functions.
-                        Realize that some layers have a policy to use spaces
-                        for all indentation.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Using Python for Complex Operations:</emphasis>
-                        For more advanced processing, it is possible to use
-                        Python code during variable assignments (e.g.
-                        search and replacement on a variable).</para>
-
-                        <para>You indicate Python code using the
-                        <filename>${@<replaceable>python_code</replaceable>}</filename>
-                        syntax for the variable assignment:
-                        <literallayout class='monospaced'>
-     SRC_URI = "ftp://ftp.info-zip.org/pub/infozip/src/zip${@d.getVar('PV',1).replace('.', '')}.tgz
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Shell Function Syntax:</emphasis>
-                        Write shell functions as if you were writing a shell
-                        script when you describe a list of actions to take.
-                        You should ensure that your script works with a generic
-                        <filename>sh</filename> and that it does not require
-                        any <filename>bash</filename> or other shell-specific
-                        functionality.
-                        The same considerations apply to various system
-                        utilities (e.g. <filename>sed</filename>,
-                        <filename>grep</filename>, <filename>awk</filename>,
-                        and so forth) that you might wish to use.
-                        If in doubt, you should check with multiple
-                        implementations - including those from BusyBox.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-    </section>
-
-    <section id="platdev-newmachine">
-        <title>Adding a New Machine</title>
-
-        <para>
-            Adding a new machine to the Yocto Project is a straightforward
-            process.
-            This section describes how to add machines that are similar
-            to those that the Yocto Project already supports.
-            <note>
-                Although well within the capabilities of the Yocto Project,
-                adding a totally new architecture might require
-                changes to <filename>gcc/glibc</filename> and to the site
-                information, which is beyond the scope of this manual.
-            </note>
-        </para>
-
-        <para>
-            For a complete example that shows how to add a new machine,
-            see the
-            "<ulink url='&YOCTO_DOCS_BSP_URL;#creating-a-new-bsp-layer-using-the-bitbake-layers-script'>Creating a New BSP Layer Using the <filename>bitbake-layers</filename> Script</ulink>"
-            section in the Yocto Project Board Support Package (BSP)
-            Developer's Guide.
-        </para>
-
-        <section id="platdev-newmachine-conffile">
-            <title>Adding the Machine Configuration File</title>
-
-            <para>
-                To add a new machine, you need to add a new machine
-                configuration file to the layer's
-                <filename>conf/machine</filename> directory.
-                This configuration file provides details about the device
-                you are adding.
-            </para>
-
-            <para>
-                The OpenEmbedded build system uses the root name of the
-                machine configuration file to reference the new machine.
-                For example, given a machine configuration file named
-                <filename>crownbay.conf</filename>, the build system
-                recognizes the machine as "crownbay".
-            </para>
-
-            <para>
-                The most important variables you must set in your machine
-                configuration file or include from a lower-level configuration
-                file are as follows:
-                <itemizedlist>
-                    <listitem><para><filename><ulink url='&YOCTO_DOCS_REF_URL;#var-TARGET_ARCH'>TARGET_ARCH</ulink></filename>
-                        (e.g. "arm")</para></listitem>
-                    <listitem><para><filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PREFERRED_PROVIDER'>PREFERRED_PROVIDER</ulink>_virtual/kernel</filename>
-                        </para></listitem>
-                    <listitem><para><filename><ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_FEATURES'>MACHINE_FEATURES</ulink></filename>
-                        (e.g. "apm screen wifi")</para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                You might also need these variables:
-                <itemizedlist>
-                    <listitem><para><filename><ulink url='&YOCTO_DOCS_REF_URL;#var-SERIAL_CONSOLES'>SERIAL_CONSOLES</ulink></filename>
-                        (e.g. "115200;ttyS0 115200;ttyS1")</para></listitem>
-                    <listitem><para><filename><ulink url='&YOCTO_DOCS_REF_URL;#var-KERNEL_IMAGETYPE'>KERNEL_IMAGETYPE</ulink></filename>
-                        (e.g. "zImage")</para></listitem>
-                    <listitem><para><filename><ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FSTYPES'>IMAGE_FSTYPES</ulink></filename>
-                        (e.g. "tar.gz jffs2")</para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                You can find full details on these variables in the reference
-                section.
-                You can leverage existing machine <filename>.conf</filename>
-                files from <filename>meta-yocto-bsp/conf/machine/</filename>.
-            </para>
-        </section>
-
-        <section id="platdev-newmachine-kernel">
-            <title>Adding a Kernel for the Machine</title>
-
-            <para>
-                The OpenEmbedded build system needs to be able to build a kernel
-                for the machine.
-                You need to either create a new kernel recipe for this machine,
-                or extend an existing kernel recipe.
-                You can find several kernel recipe examples in the
-                Source Directory at
-                <filename>meta/recipes-kernel/linux</filename>
-                that you can use as references.
-            </para>
-
-            <para>
-                If you are creating a new kernel recipe, normal recipe-writing
-                rules apply for setting up a
-                <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'>SRC_URI</ulink></filename>.
-                Thus, you need to specify any necessary patches and set
-                <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-S'>S</ulink></filename>
-                to point at the source code.
-                You need to create a <filename>do_configure</filename> task that
-                configures the unpacked kernel with a
-                <filename>defconfig</filename> file.
-                You can do this by using a <filename>make defconfig</filename>
-                command or, more commonly, by copying in a suitable
-                <filename>defconfig</filename> file and then running
-                <filename>make oldconfig</filename>.
-                By making use of <filename>inherit kernel</filename> and
-                potentially some of the <filename>linux-*.inc</filename> files,
-                most other functionality is centralized and the defaults of the
-                class normally work well.
-            </para>
-
-            <para>
-                If you are extending an existing kernel recipe, it is usually
-                a matter of adding a suitable <filename>defconfig</filename>
-                file.
-                The file needs to be added into a location similar to
-                <filename>defconfig</filename> files used for other machines
-                in a given kernel recipe.
-                A possible way to do this is by listing the file in the
-                <filename>SRC_URI</filename> and adding the machine to the
-                expression in
-                <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-COMPATIBLE_MACHINE'>COMPATIBLE_MACHINE</ulink></filename>:
-                <literallayout class='monospaced'>
-     COMPATIBLE_MACHINE = '(qemux86|qemumips)'
-                </literallayout>
-                For more information on <filename>defconfig</filename> files,
-                see the
-                "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#changing-the-configuration'>Changing the Configuration</ulink>"
-                section in the Yocto Project Linux Kernel Development Manual.
-            </para>
-        </section>
-
-        <section id="platdev-newmachine-formfactor">
-            <title>Adding a Formfactor Configuration File</title>
-
-            <para>
-                A formfactor configuration file provides information about the
-                target hardware for which the image is being built and information that
-                the build system cannot obtain from other sources such as the kernel.
-                Some examples of information contained in a formfactor configuration file include
-                framebuffer orientation, whether or not the system has a keyboard,
-                the positioning of the keyboard in relation to the screen, and
-                the screen resolution.
-            </para>
-
-            <para>
-                The build system uses reasonable defaults in most cases.
-                However, if customization is
-                necessary, you need to create a <filename>machconfig</filename> file
-                in the <filename>meta/recipes-bsp/formfactor/files</filename>
-                directory.
-                This directory contains directories for specific machines such as
-                <filename>qemuarm</filename> and <filename>qemux86</filename>.
-                For information about the settings available and the defaults, see the
-                <filename>meta/recipes-bsp/formfactor/files/config</filename> file found in the
-                same area.
-            </para>
-
-            <para>
-                Following is an example for "qemuarm" machine:
-                <literallayout class='monospaced'>
-     HAVE_TOUCHSCREEN=1
-     HAVE_KEYBOARD=1
-
-     DISPLAY_CAN_ROTATE=0
-     DISPLAY_ORIENTATION=0
-     #DISPLAY_WIDTH_PIXELS=640
-     #DISPLAY_HEIGHT_PIXELS=480
-     #DISPLAY_BPP=16
-     DISPLAY_DPI=150
-     DISPLAY_SUBPIXEL_ORDER=vrgb
-                </literallayout>
-            </para>
-        </section>
-    </section>
-
-    <section id='gs-upgrading-recipes'>
-        <title>Upgrading Recipes</title>
-
-        <para>
-            Over time, upstream developers publish new versions for software
-            built by layer recipes.
-            It is recommended to keep recipes up-to-date with upstream
-            version releases.
-        </para>
-
-        <para>
-            While several methods exist that allow you upgrade a recipe,
-            you might consider checking on the upgrade status of a recipe
-            first.
-            You can do so using the
-            <filename>devtool check-upgrade-status</filename> command.
-            See the
-            "<ulink url='&YOCTO_DOCS_REF_URL;#devtool-checking-on-the-upgrade-status-of-a-recipe'>Checking on the Upgrade Status of a Recipe</ulink>"
-            section in the Yocto Project Reference Manual for more information.
-        </para>
-
-        <para>
-            The remainder of this section describes three ways you can
-            upgrade a recipe.
-            You can use the Automated Upgrade Helper (AUH) to set up
-            automatic version upgrades.
-            Alternatively, you can use <filename>devtool upgrade</filename>
-            to set up semi-automatic version upgrades.
-            Finally, you can manually upgrade a recipe by editing the
-            recipe itself.
-        </para>
-
-        <section id='gs-using-the-auto-upgrade-helper'>
-            <title>Using the Auto Upgrade Helper (AUH)</title>
-
-            <para>
-                The AUH utility works in conjunction with the
-                OpenEmbedded build system in order to automatically generate
-                upgrades for recipes based on new versions being
-                published upstream.
-                Use AUH when you want to create a service that performs the
-                upgrades automatically and optionally sends you an email with
-                the results.
-            </para>
-
-            <para>
-                AUH allows you to update several recipes with a single use.
-                You can also optionally perform build and integration tests
-                using images with the results saved to your hard drive and
-                emails of results optionally sent to recipe maintainers.
-                Finally, AUH creates Git commits with appropriate commit
-                messages in the layer's tree for the changes made to recipes.
-                <note>
-                    Conditions do exist when you should not use AUH to upgrade
-                    recipes and you should instead use either
-                    <filename>devtool upgrade</filename> or upgrade your
-                    recipes manually:
-                    <itemizedlist>
-                        <listitem><para>
-                            When AUH cannot complete the upgrade sequence.
-                            This situation usually results because custom
-                            patches carried by the recipe cannot be
-                            automatically rebased to the new version.
-                            In this case, <filename>devtool upgrade</filename>
-                            allows you to manually resolve conflicts.
-                            </para></listitem>
-                        <listitem><para>
-                            When for any reason you want fuller control over
-                            the upgrade process.
-                            For example, when you want special arrangements
-                            for testing.
-                            </para></listitem>
-                    </itemizedlist>
-                </note>
-            </para>
-
-            <para>
-                The following steps describe how to set up the AUH utility:
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Be Sure the Development Host is Set Up:</emphasis>
-                        You need to be sure that your development host is
-                        set up to use the Yocto Project.
-                        For information on how to set up your host, see the
-                        "<link linkend='dev-preparing-the-build-host'>Preparing the Build Host</link>"
-                        section.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Make Sure Git is Configured:</emphasis>
-                        The AUH utility requires Git to be configured because
-                        AUH uses Git to save upgrades.
-                        Thus, you must have Git user and email configured.
-                        The following command shows your configurations:
-                        <literallayout class='monospaced'>
-     $ git config --list
-                        </literallayout>
-                        If you do not have the user and email configured, you
-                        can use the following commands to do so:
-                        <literallayout class='monospaced'>
-     $ git config --global user.name <replaceable>some_name</replaceable>
-     $ git config --global user.email <replaceable>username</replaceable>@<replaceable>domain</replaceable>.com
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Clone the AUH Repository:</emphasis>
-                        To use AUH, you must clone the repository onto your
-                        development host.
-                        The following command uses Git to create a local
-                        copy of the repository on your system:
-                        <literallayout class='monospaced'>
-     $ git clone git://git.yoctoproject.org/auto-upgrade-helper
-     Cloning into 'auto-upgrade-helper'...
-     remote: Counting objects: 768, done.
-     remote: Compressing objects: 100% (300/300), done.
-     remote: Total 768 (delta 499), reused 703 (delta 434)
-     Receiving objects: 100% (768/768), 191.47 KiB | 98.00 KiB/s, done.
-     Resolving deltas: 100% (499/499), done.
-     Checking connectivity... done.
-                        </literallayout>
-                        AUH is not part of the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#oe-core'>OpenEmbedded-Core (OE-Core)</ulink>
-                        or
-                        <ulink url='&YOCTO_DOCS_REF_URL;#poky'>Poky</ulink>
-                        repositories.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Create a Dedicated Build Directory:</emphasis>
-                        Run the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>oe-init-build-env</filename></ulink>
-                        script to create a fresh build directory that you
-                        use exclusively for running the AUH utility:
-                        <literallayout class='monospaced'>
-     $ cd ~/poky
-     $ source oe-init-build-env <replaceable>your_AUH_build_directory</replaceable>
-                        </literallayout>
-                        Re-using an existing build directory and its
-                        configurations is not recommended as existing settings
-                        could cause AUH to fail or behave undesirably.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Make Configurations in Your Local Configuration File:</emphasis>
-                        Several settings need to exist in the
-                        <filename>local.conf</filename> file in the build
-                        directory you just created for AUH.
-                        Make these following configurations:
-                        <itemizedlist>
-                            <listitem><para>
-                                If you want to enable
-                                <ulink url='&YOCTO_DOCS_DEV_URL;#maintaining-build-output-quality'>Build History</ulink>,
-                                which is optional, you need the following
-                                lines in the
-                                <filename>conf/local.conf</filename> file:
-                                <literallayout class='monospaced'>
-     INHERIT =+ "buildhistory"
-     BUILDHISTORY_COMMIT = "1"
-                                </literallayout>
-                                With this configuration and a successful
-                                upgrade, a build history "diff" file appears in
-                                the
-                                <filename>upgrade-helper/work/recipe/buildhistory-diff.txt</filename>
-                                file found in your build directory.
-                                </para></listitem>
-                            <listitem><para>
-                                If you want to enable testing through the
-                                <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-testimage*'><filename>testimage</filename></ulink>
-                                class, which is optional, you need to have the
-                                following set in your
-                                <filename>conf/local.conf</filename> file:
-                                <literallayout class='monospaced'>
-     INHERIT += "testimage"
-                                </literallayout>
-                                <note>
-                                    If your distro does not enable by default
-                                    ptest, which Poky does, you need the
-                                    following in your
-                                    <filename>local.conf</filename> file:
-                                    <literallayout class='monospaced'>
-     DISTRO_FEATURES_append = " ptest"
-                                    </literallayout>
-                                </note>
-                                </para></listitem>
-                        </itemizedlist>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Optionally Start a vncserver:</emphasis>
-                        If you are running in a server without an X11 session,
-                        you need to start a vncserver:
-                        <literallayout class='monospaced'>
-     $ vncserver :1
-     $ export DISPLAY=:1
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Create and Edit an AUH Configuration File:</emphasis>
-                        You need to have the
-                        <filename>upgrade-helper/upgrade-helper.conf</filename>
-                        configuration file in your build directory.
-                        You can find a sample configuration file in the
-                        <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/auto-upgrade-helper/tree/'>AUH source repository</ulink>.
-                        </para>
-
-                        <para>Read through the sample file and make
-                        configurations as needed.
-                        For example, if you enabled build history in your
-                        <filename>local.conf</filename> as described earlier,
-                        you must enable it in
-                        <filename>upgrade-helper.conf</filename>.</para>
-
-                        <para>Also, if you are using the default
-                        <filename>maintainers.inc</filename> file supplied
-                        with Poky and located in
-                        <filename>meta-yocto</filename> and you do not set a
-                        "maintainers_whitelist" or "global_maintainer_override"
-                        in the <filename>upgrade-helper.conf</filename>
-                        configuration, and you specify "-e all" on the
-                        AUH command-line, the utility automatically sends out
-                        emails to all the default maintainers.
-                        Please avoid this.
-                        </para></listitem>
-                </orderedlist>
-            </para>
-
-            <para>
-                This next set of examples describes how to use the AUH:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>Upgrading a Specific Recipe:</emphasis>
-                        To upgrade a specific recipe, use the following
-                        form:
-                        <literallayout class='monospaced'>
-     $ upgrade-helper.py <replaceable>recipe_name</replaceable>
-                        </literallayout>
-                        For example, this command upgrades the
-                        <filename>xmodmap</filename> recipe:
-                        <literallayout class='monospaced'>
-     $ upgrade-helper.py xmodmap
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Upgrading a Specific Recipe to a Particular Version:</emphasis>
-                        To upgrade a specific recipe to a particular version,
-                        use the following form:
-                        <literallayout class='monospaced'>
-     $ upgrade-helper.py <replaceable>recipe_name</replaceable> -t <replaceable>version</replaceable>
-                        </literallayout>
-                        For example, this command upgrades the
-                        <filename>xmodmap</filename> recipe to version
-                        1.2.3:
-                        <literallayout class='monospaced'>
-     $ upgrade-helper.py xmodmap -t 1.2.3
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Upgrading all Recipes to the Latest Versions and Suppressing Email Notifications:</emphasis>
-                        To upgrade all recipes to their most recent versions
-                        and suppress the email notifications, use the following
-                        command:
-                        <literallayout class='monospaced'>
-     $ upgrade-helper.py all
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Upgrading all Recipes to the Latest Versions and Send Email Notifications:</emphasis>
-                        To upgrade all recipes to their most recent versions
-                        and send email messages to maintainers for each
-                        attempted recipe as well as a status email, use the
-                        following command:
-                        <literallayout class='monospaced'>
-     $ upgrade-helper.py -e all
-                        </literallayout>
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                Once you have run the AUH utility, you can find the results
-                in the AUH build directory:
-                <literallayout class='monospaced'>
-     ${BUILDDIR}/upgrade-helper/<replaceable>timestamp</replaceable>
-                </literallayout>
-                The AUH utility also creates recipe update commits from
-                successful upgrade attempts in the layer tree.
-            </para>
-
-            <para>
-                You can easily set up to run the AUH utility on a regular
-                basis by using a cron job.
-                See the
-                <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/auto-upgrade-helper/tree/weeklyjob.sh'><filename>weeklyjob.sh</filename></ulink>
-                file distributed with the utility for an example.
-            </para>
-        </section>
-
-        <section id='gs-using-devtool-upgrade'>
-            <title>Using <filename>devtool upgrade</filename></title>
-
-            <para>
-                As mentioned earlier, an alternative method for upgrading
-                recipes to newer versions is to use
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-devtool-reference'><filename>devtool upgrade</filename></ulink>.
-                You can read about <filename>devtool upgrade</filename> in
-                general in the
-                "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-devtool-use-devtool-upgrade-to-create-a-version-of-the-recipe-that-supports-a-newer-version-of-the-software'>Use <filename>devtool upgrade</filename> to Create a Version of the Recipe that Supports a Newer Version of the Software</ulink>"
-                section in the Yocto Project Application Development and the
-                Extensible Software Development Kit (eSDK) Manual.
-            </para>
-
-            <para>
-                To see all the command-line options available with
-                <filename>devtool upgrade</filename>, use the following help
-                command:
-                <literallayout class='monospaced'>
-     $ devtool upgrade -h
-                </literallayout>
-            </para>
-
-            <para>
-                If you want to find out what version a recipe is currently at
-                upstream without any attempt to upgrade your local version of
-                the recipe, you can use the following command:
-                <literallayout class='monospaced'>
-     $ devtool latest-version <replaceable>recipe_name</replaceable>
-                </literallayout>
-            </para>
-
-            <para>
-                As mentioned in the previous section describing AUH,
-                <filename>devtool upgrade</filename> works in a
-                less-automated manner than AUH.
-                Specifically, <filename>devtool upgrade</filename> only
-                works on a single recipe that you name on the command line,
-                cannot perform build and integration testing using images,
-                and does not automatically generate commits for changes in
-                the source tree.
-                Despite all these "limitations",
-                <filename>devtool upgrade</filename> updates the recipe file
-                to the new upstream version and attempts to rebase custom
-                patches contained by the recipe as needed.
-                <note>
-                    AUH uses much of <filename>devtool upgrade</filename>
-                    behind the scenes making AUH somewhat of a "wrapper"
-                    application for <filename>devtool upgrade</filename>.
-                </note>
-            </para>
-
-            <para>
-                A typical scenario involves having used Git to clone an
-                upstream repository that you use during build operations.
-                Because you are (or have) built the recipe in the past, the
-                layer is likely added to your configuration already.
-                If for some reason, the layer is not added, you could add
-                it easily using the
-                <ulink url='&YOCTO_DOCS_BSP_URL;#creating-a-new-bsp-layer-using-the-bitbake-layers-script'><filename>bitbake-layers</filename></ulink>
-                script.
-                For example, suppose you use the <filename>nano.bb</filename>
-                recipe from the <filename>meta-oe</filename> layer in the
-                <filename>meta-openembedded</filename> repository.
-                For this example, assume that the layer has been cloned into
-                following area:
-                <literallayout class='monospaced'>
-     /home/scottrif/meta-openembedded
-                </literallayout>
-                The following command from your
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                adds the layer to your build configuration (i.e.
-                <filename>${BUILDDIR}/conf/bblayers.conf</filename>):
-                <literallayout class='monospaced'>
-     $ bitbake-layers add-layer /home/scottrif/meta-openembedded/meta-oe
-     NOTE: Starting bitbake server...
-     Parsing recipes: 100% |##########################################| Time: 0:00:55
-     Parsing of 1431 .bb files complete (0 cached, 1431 parsed). 2040 targets, 56 skipped, 0 masked, 0 errors.
-     Removing 12 recipes from the x86_64 sysroot: 100% |##############| Time: 0:00:00
-     Removing 1 recipes from the x86_64_i586 sysroot: 100% |##########| Time: 0:00:00
-     Removing 5 recipes from the i586 sysroot: 100% |#################| Time: 0:00:00
-     Removing 5 recipes from the qemux86 sysroot: 100% |##############| Time: 0:00:00
-                </literallayout>
-                For this example, assume that the <filename>nano.bb</filename>
-                recipe that is upstream has a 2.9.3 version number.
-                However, the version in the local repository is 2.7.4.
-                The following command from your build directory automatically
-                upgrades the recipe for you:
-                <note>
-                    Using the <filename>-V</filename> option is not necessary.
-                    Omitting the version number causes
-                    <filename>devtool upgrade</filename> to upgrade the recipe
-                    to the most recent version.
-                </note>
-                <literallayout class='monospaced'>
-     $ devtool upgrade nano -V 2.9.3
-     NOTE: Starting bitbake server...
-     NOTE: Creating workspace layer in /home/scottrif/poky/build/workspace
-     Parsing recipes: 100% |##########################################| Time: 0:00:46
-     Parsing of 1431 .bb files complete (0 cached, 1431 parsed). 2040 targets, 56 skipped, 0 masked, 0 errors.
-     NOTE: Extracting current version source...
-     NOTE: Resolving any missing task queue dependencies
-            .
-            .
-            .
-     NOTE: Executing SetScene Tasks
-     NOTE: Executing RunQueue Tasks
-     NOTE: Tasks Summary: Attempted 74 tasks of which 72 didn't need to be rerun and all succeeded.
-     Adding changed files: 100% |#####################################| Time: 0:00:00
-     NOTE: Upgraded source extracted to /home/scottrif/poky/build/workspace/sources/nano
-     NOTE: New recipe is /home/scottrif/poky/build/workspace/recipes/nano/nano_2.9.3.bb
-                </literallayout>
-                Continuing with this example, you can use
-                <filename>devtool build</filename> to build the newly upgraded
-                recipe:
-                <literallayout class='monospaced'>
-     $ devtool build nano
-     NOTE: Starting bitbake server...
-     Loading cache: 100% |################################################################################################| Time: 0:00:01
-     Loaded 2040 entries from dependency cache.
-     Parsing recipes: 100% |##############################################################################################| Time: 0:00:00
-     Parsing of 1432 .bb files complete (1431 cached, 1 parsed). 2041 targets, 56 skipped, 0 masked, 0 errors.
-     NOTE: Resolving any missing task queue dependencies
-            .
-            .
-            .
-     NOTE: Executing SetScene Tasks
-     NOTE: Executing RunQueue Tasks
-     NOTE: nano: compiling from external source tree /home/scottrif/poky/build/workspace/sources/nano
-     NOTE: Tasks Summary: Attempted 520 tasks of which 304 didn't need to be rerun and all succeeded.
-                </literallayout>
-                Within the <filename>devtool upgrade</filename> workflow,
-                opportunity exists to deploy and test your rebuilt software.
-                For this example, however, running
-                <filename>devtool finish</filename> cleans up the workspace
-                once the source in your workspace is clean.
-                This usually means using Git to stage and submit commits
-                for the changes generated by the upgrade process.
-            </para>
-
-            <para>
-                Once the tree is clean, you can clean things up in this
-                example with the following command from the
-                <filename>${BUILDDIR}/workspace/sources/nano</filename>
-                directory:
-                <literallayout class='monospaced'>
-     $ devtool finish nano meta-oe
-     NOTE: Starting bitbake server...
-     Loading cache: 100% |################################################################################################| Time: 0:00:00
-     Loaded 2040 entries from dependency cache.
-     Parsing recipes: 100% |##############################################################################################| Time: 0:00:01
-     Parsing of 1432 .bb files complete (1431 cached, 1 parsed). 2041 targets, 56 skipped, 0 masked, 0 errors.
-     NOTE: Adding new patch 0001-nano.bb-Stuff-I-changed-when-upgrading-nano.bb.patch
-     NOTE: Updating recipe nano_2.9.3.bb
-     NOTE: Removing file /home/scottrif/meta-openembedded/meta-oe/recipes-support/nano/nano_2.7.4.bb
-     NOTE: Moving recipe file to /home/scottrif/meta-openembedded/meta-oe/recipes-support/nano
-     NOTE: Leaving source tree /home/scottrif/poky/build/workspace/sources/nano as-is; if you no longer need it then please delete it manually
-                </literallayout>
-                Using the <filename>devtool finish</filename> command cleans
-                up the workspace and creates a patch file based on your
-                commits.
-                The tool puts all patch files back into the source directory
-                in a sub-directory named <filename>nano</filename> in this
-                case.
-            </para>
-        </section>
-
-        <section id='dev-manually-upgrading-a-recipe'>
-            <title>Manually Upgrading a Recipe</title>
-
-            <para>
-                If for some reason you choose not to upgrade recipes using the
-                <link linkend='gs-using-the-auto-upgrade-helper'>Auto Upgrade Helper (AUH)</link>
-                or by using
-                <link linkend='gs-using-devtool-upgrade'><filename>devtool upgrade</filename></link>,
-                you can manually edit the recipe files to upgrade the versions.
-                <note><title>Caution</title>
-                    Manually updating multiple recipes scales poorly and
-                    involves many steps.
-                    The recommendation to upgrade recipe versions is through
-                    AUH or <filename>devtool upgrade</filename>, both of which
-                    automate some steps and provide guidance for others needed
-                    for the manual process.
-                </note>
-            </para>
-
-            <para>
-                To manually upgrade recipe versions, follow these general steps:
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Change the Version:</emphasis>
-                        Rename the recipe such that the version (i.e. the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>
-                        part of the recipe name) changes appropriately.
-                        If the version is not part of the recipe name, change
-                        the value as it is set for <filename>PV</filename>
-                        within the recipe itself.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Update <filename>SRCREV</filename> if Needed:</emphasis>
-                        If the source code your recipe builds is fetched from
-                        Git or some other version control system, update
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SRCREV'><filename>SRCREV</filename></ulink>
-                        to point to the commit hash that matches the new
-                        version.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Build the Software:</emphasis>
-                        Try to build the recipe using BitBake.
-                        Typical build failures include the following:
-                        <itemizedlist>
-                            <listitem><para>
-                                License statements were updated for the new
-                                version.
-                                For this case, you need to review any changes
-                                to the license and update the values of
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-LICENSE'><filename>LICENSE</filename></ulink>
-                                and
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-LIC_FILES_CHKSUM'><filename>LIC_FILES_CHKSUM</filename></ulink>
-                                as needed.
-                                <note>
-                                    License changes are often inconsequential.
-                                    For example, the license text's copyright
-                                    year might have changed.
-                                </note>
-                                </para></listitem>
-                            <listitem><para>
-                                Custom patches carried by the older version of
-                                the recipe might fail to apply to the new
-                                version.
-                                For these cases, you need to review the
-                                failures.
-                                Patches might not be necessary for the new
-                                version of the software if the upgraded version
-                                has fixed those issues.
-                                If a patch is necessary and failing, you need
-                                to rebase it into the new version.
-                                </para></listitem>
-                        </itemizedlist>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Optionally Attempt to Build for Several Architectures:</emphasis>
-                        Once you successfully build the new software for a
-                        given architecture, you could test the build for
-                        other architectures by changing the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
-                        variable and rebuilding the software.
-                        This optional step is especially important if the
-                        recipe is to be released publicly.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Check the Upstream Change Log or Release Notes:</emphasis>
-                        Checking both these reveals if new features exist that
-                        could break backwards-compatibility.
-                        If so, you need to take steps to mitigate or eliminate
-                        that situation.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Optionally Create a Bootable Image and Test:</emphasis>
-                        If you want, you can test the new software by booting
-                        it onto actual hardware.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Create a Commit with the Change in the Layer Repository:</emphasis>
-                        After all builds work and any testing is successful,
-                        you can create commits for any changes in the layer
-                        holding your upgraded recipe.
-                        </para></listitem>
-                </orderedlist>
-            </para>
-        </section>
-    </section>
-
-    <section id='finding-the-temporary-source-code'>
-        <title>Finding Temporary Source Code</title>
-
-        <para>
-            You might find it helpful during development to modify the
-            temporary source code used by recipes to build packages.
-            For example, suppose you are developing a patch and you need to
-            experiment a bit to figure out your solution.
-            After you have initially built the package, you can iteratively
-            tweak the source code, which is located in the
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>,
-            and then you can force a re-compile and quickly test your altered
-            code.
-            Once you settle on a solution, you can then preserve your changes
-            in the form of patches.
-        </para>
-
-        <para>
-            During a build, the unpacked temporary source code used by recipes
-            to build packages is available in the Build Directory as
-            defined by the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-S'><filename>S</filename></ulink>
-            variable.
-            Below is the default value for the <filename>S</filename> variable
-            as defined in the
-            <filename>meta/conf/bitbake.conf</filename> configuration file
-            in the
-            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>:
-            <literallayout class='monospaced'>
-     S = "${WORKDIR}/${BP}"
-            </literallayout>
-            You should be aware that many recipes override the
-            <filename>S</filename> variable.
-            For example, recipes that fetch their source from Git usually set
-            <filename>S</filename> to <filename>${WORKDIR}/git</filename>.
-            <note>
-                The
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-BP'><filename>BP</filename></ulink>
-                represents the base recipe name, which consists of the name
-                and version:
-                <literallayout class='monospaced'>
-     BP = "${BPN}-${PV}"
-                </literallayout>
-            </note>
-        </para>
-
-        <para>
-            The path to the work directory for the recipe
-            (<ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink>)
-            is defined as follows:
-            <literallayout class='monospaced'>
-     ${TMPDIR}/work/${MULTIMACH_TARGET_SYS}/${PN}/${EXTENDPE}${PV}-${PR}
-            </literallayout>
-            The actual directory depends on several things:
-            <itemizedlist>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-TMPDIR'><filename>TMPDIR</filename></ulink>:
-                    The top-level build output directory.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-MULTIMACH_TARGET_SYS'><filename>MULTIMACH_TARGET_SYS</filename></ulink>:
-                    The target system identifier.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink>:
-                    The recipe name.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTENDPE'><filename>EXTENDPE</filename></ulink>:
-                    The epoch - (if
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PE'><filename>PE</filename></ulink>
-                    is not specified, which is usually the case for most
-                    recipes, then <filename>EXTENDPE</filename> is blank).
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>:
-                    The recipe version.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PR'><filename>PR</filename></ulink>:
-                    The recipe revision.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            As an example, assume a Source Directory top-level folder
-            named <filename>poky</filename>, a default Build Directory at
-            <filename>poky/build</filename>, and a
-            <filename>qemux86-poky-linux</filename> machine target
-            system.
-            Furthermore, suppose your recipe is named
-            <filename>foo_1.3.0.bb</filename>.
-            In this case, the work directory the build system uses to
-            build the package would be as follows:
-            <literallayout class='monospaced'>
-     poky/build/tmp/work/qemux86-poky-linux/foo/1.3.0-r0
-            </literallayout>
-        </para>
-    </section>
-
-    <section id="using-a-quilt-workflow">
-        <title>Using Quilt in Your Workflow</title>
-
-        <para>
-            <ulink url='http://savannah.nongnu.org/projects/quilt'>Quilt</ulink>
-            is a powerful tool that allows you to capture source code changes
-            without having a clean source tree.
-            This section outlines the typical workflow you can use to modify
-            source code, test changes, and then preserve the changes in the
-            form of a patch all using Quilt.
-            <note><title>Tip</title>
-                With regard to preserving changes to source files, if you
-                clean a recipe or have <filename>rm_work</filename> enabled,
-                the
-                <ulink url='&YOCTO_DOCS_SDK_URL;#using-devtool-in-your-sdk-workflow'><filename>devtool</filename> workflow</ulink>
-                as described in the Yocto Project Application Development
-                and the Extensible Software Development Kit (eSDK) manual
-                is a safer development flow than the flow that uses Quilt.
-            </note>
-        </para>
-
-        <para>
-            Follow these general steps:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Find the Source Code:</emphasis>
-                    Temporary source code used by the OpenEmbedded build system
-                    is kept in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                    See the
-                    "<link linkend='finding-the-temporary-source-code'>Finding Temporary Source Code</link>"
-                    section to learn how to locate the directory that has the
-                    temporary source code for a particular package.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Change Your Working Directory:</emphasis>
-                    You need to be in the directory that has the temporary
-                    source code.
-                    That directory is defined by the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-S'><filename>S</filename></ulink>
-                    variable.</para></listitem>
-                <listitem><para>
-                    <emphasis>Create a New Patch:</emphasis>
-                    Before modifying source code, you need to create a new
-                    patch.
-                    To create a new patch file, use
-                    <filename>quilt new</filename> as below:
-                    <literallayout class='monospaced'>
-     $ quilt new my_changes.patch
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Notify Quilt and Add Files:</emphasis>
-                    After creating the patch, you need to notify Quilt about
-                    the files you plan to edit.
-                    You notify Quilt by adding the files to the patch you
-                    just created:
-                    <literallayout class='monospaced'>
-     $ quilt add file1.c file2.c file3.c
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Edit the Files:</emphasis>
-                    Make your changes in the source code to the files you added
-                    to the patch.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Test Your Changes:</emphasis>
-                    Once you have modified the source code, the easiest way to
-                    test your changes is by calling the
-                    <filename>do_compile</filename> task as shown in the
-                    following example:
-                    <literallayout class='monospaced'>
-     $ bitbake -c compile -f <replaceable>package</replaceable>
-                    </literallayout>
-                    The <filename>-f</filename> or <filename>--force</filename>
-                    option forces the specified task to execute.
-                    If you find problems with your code, you can just keep
-                    editing and re-testing iteratively until things work
-                    as expected.
-                    <note>
-                        All the modifications you make to the temporary
-                        source code disappear once you run the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-clean'><filename>do_clean</filename></ulink>
-                        or
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-cleanall'><filename>do_cleanall</filename></ulink>
-                        tasks using BitBake (i.e.
-                        <filename>bitbake -c clean <replaceable>package</replaceable></filename>
-                        and
-                        <filename>bitbake -c cleanall <replaceable>package</replaceable></filename>).
-                        Modifications will also disappear if you use the
-                        <filename>rm_work</filename> feature as described
-                        in the
-                        "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-saving-memory-during-a-build'>Conserving Disk Space During Builds</ulink>"
-                        section.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Generate the Patch:</emphasis>
-                    Once your changes work as expected, you need to use Quilt
-                    to generate the final patch that contains all your
-                    modifications.
-                    <literallayout class='monospaced'>
-     $ quilt refresh
-                    </literallayout>
-                    At this point, the <filename>my_changes.patch</filename>
-                    file has all your edits made to the
-                    <filename>file1.c</filename>, <filename>file2.c</filename>,
-                    and <filename>file3.c</filename> files.</para>
-
-                    <para>You can find the resulting patch file in the
-                    <filename>patches/</filename> subdirectory of the source
-                    (<filename>S</filename>) directory.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Copy the Patch File:</emphasis>
-                    For simplicity, copy the patch file into a directory
-                    named <filename>files</filename>, which you can create
-                    in the same directory that holds the recipe
-                    (<filename>.bb</filename>) file or the append
-                    (<filename>.bbappend</filename>) file.
-                    Placing the patch here guarantees that the OpenEmbedded
-                    build system will find the patch.
-                    Next, add the patch into the
-                    <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'>SRC_URI</ulink></filename>
-                    of the recipe.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     SRC_URI += "file://my_changes.patch"
-                    </literallayout>
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id="platdev-appdev-devshell">
-        <title>Using a Development Shell</title>
-
-        <para>
-            When debugging certain commands or even when just editing packages,
-            <filename>devshell</filename> can be a useful tool.
-            When you invoke <filename>devshell</filename>, all tasks up to and
-            including
-            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-patch'><filename>do_patch</filename></ulink>
-            are run for the specified target.
-            Then, a new terminal is opened and you are placed in
-            <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-S'><filename>S</filename></ulink><filename>}</filename>,
-            the source directory.
-            In the new terminal, all the OpenEmbedded build-related environment variables are
-            still defined so you can use commands such as <filename>configure</filename> and
-            <filename>make</filename>.
-            The commands execute just as if the OpenEmbedded build system were executing them.
-            Consequently, working this way can be helpful when debugging a build or preparing
-            software to be used with the OpenEmbedded build system.
-        </para>
-
-        <para>
-            Following is an example that uses <filename>devshell</filename> on a target named
-            <filename>matchbox-desktop</filename>:
-            <literallayout class='monospaced'>
-     $ bitbake matchbox-desktop -c devshell
-            </literallayout>
-        </para>
-
-        <para>
-            This command spawns a terminal with a shell prompt within the OpenEmbedded build environment.
-            The <ulink url='&YOCTO_DOCS_REF_URL;#var-OE_TERMINAL'><filename>OE_TERMINAL</filename></ulink>
-            variable controls what type of shell is opened.
-        </para>
-
-        <para>
-            For spawned terminals, the following occurs:
-            <itemizedlist>
-                <listitem><para>The <filename>PATH</filename> variable includes the
-                    cross-toolchain.</para></listitem>
-                <listitem><para>The <filename>pkgconfig</filename> variables find the correct
-                    <filename>.pc</filename> files.</para></listitem>
-                <listitem><para>The <filename>configure</filename> command finds the
-                    Yocto Project site files as well as any other necessary files.</para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            Within this environment, you can run configure or compile
-            commands as if they were being run by
-            the OpenEmbedded build system itself.
-            As noted earlier, the working directory also automatically changes to the
-            Source Directory (<ulink url='&YOCTO_DOCS_REF_URL;#var-S'><filename>S</filename></ulink>).
-        </para>
-
-        <para>
-            To manually run a specific task using <filename>devshell</filename>,
-            run the corresponding <filename>run.*</filename> script in
-            the
-            <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink><filename>}/temp</filename>
-            directory (e.g.,
-            <filename>run.do_configure.</filename><replaceable>pid</replaceable>).
-            If a task's script does not exist, which would be the case if the task was
-            skipped by way of the sstate cache, you can create the task by first running
-            it outside of the <filename>devshell</filename>:
-            <literallayout class='monospaced'>
-     $ bitbake -c <replaceable>task</replaceable>
-            </literallayout>
-            <note><title>Notes</title>
-                <itemizedlist>
-                    <listitem><para>Execution of a task's <filename>run.*</filename>
-                        script and BitBake's execution of a task are identical.
-                        In other words, running the script re-runs the task
-                        just as it would be run using the
-                        <filename>bitbake -c</filename> command.
-                        </para></listitem>
-                    <listitem><para>Any <filename>run.*</filename> file that does not
-                        have a <filename>.pid</filename> extension is a
-                        symbolic link (symlink) to the most recent version of that
-                        file.
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-        </para>
-
-        <para>
-            Remember, that the <filename>devshell</filename> is a mechanism that allows
-            you to get into the BitBake task execution environment.
-            And as such, all commands must be called just as BitBake would call them.
-            That means you need to provide the appropriate options for
-            cross-compilation and so forth as applicable.
-        </para>
-
-        <para>
-            When you are finished using <filename>devshell</filename>, exit the shell
-            or close the terminal window.
-        </para>
-
-        <note><title>Notes</title>
-            <itemizedlist>
-                <listitem><para>
-                    It is worth remembering that when using <filename>devshell</filename>
-                    you need to use the full compiler name such as <filename>arm-poky-linux-gnueabi-gcc</filename>
-                    instead of just using <filename>gcc</filename>.
-                    The same applies to other applications such as <filename>binutils</filename>,
-                    <filename>libtool</filename> and so forth.
-                    BitBake sets up environment variables such as <filename>CC</filename>
-                    to assist applications, such as <filename>make</filename> to find the correct tools.
-                    </para></listitem>
-                <listitem><para>
-                    It is also worth noting that <filename>devshell</filename> still works over
-                    X11 forwarding and similar situations.
-                    </para></listitem>
-            </itemizedlist>
-        </note>
-    </section>
-
-    <section id="platdev-appdev-devpyshell">
-        <title>Using a Development Python Shell</title>
-
-        <para>
-            Similar to working within a development shell as described in
-            the previous section, you can also spawn and work within an
-            interactive Python development shell.
-            When debugging certain commands or even when just editing packages,
-            <filename>devpyshell</filename> can be a useful tool.
-            When you invoke <filename>devpyshell</filename>, all tasks up to and
-            including
-            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-patch'><filename>do_patch</filename></ulink>
-            are run for the specified target.
-            Then a new terminal is opened.
-            Additionally, key Python objects and code are available in the same
-            way they are to BitBake tasks, in particular, the data store 'd'.
-            So, commands such as the following are useful when exploring the data
-            store and running functions:
-            <literallayout class='monospaced'>
-     pydevshell> d.getVar("STAGING_DIR")
-     '/media/build1/poky/build/tmp/sysroots'
-     pydevshell> d.getVar("STAGING_DIR")
-     '${TMPDIR}/sysroots'
-     pydevshell> d.setVar("FOO", "bar")
-     pydevshell> d.getVar("FOO")
-     'bar'
-     pydevshell> d.delVar("FOO")
-     pydevshell> d.getVar("FOO")
-     pydevshell> bb.build.exec_func("do_unpack", d)
-     pydevshell>
-            </literallayout>
-            The commands execute just as if the OpenEmbedded build system were executing them.
-            Consequently, working this way can be helpful when debugging a build or preparing
-            software to be used with the OpenEmbedded build system.
-        </para>
-
-        <para>
-            Following is an example that uses <filename>devpyshell</filename> on a target named
-            <filename>matchbox-desktop</filename>:
-            <literallayout class='monospaced'>
-     $ bitbake matchbox-desktop -c devpyshell
-            </literallayout>
-        </para>
-
-        <para>
-            This command spawns a terminal and places you in an interactive
-            Python interpreter within the OpenEmbedded build environment.
-            The <ulink url='&YOCTO_DOCS_REF_URL;#var-OE_TERMINAL'><filename>OE_TERMINAL</filename></ulink>
-            variable controls what type of shell is opened.
-        </para>
-
-        <para>
-            When you are finished using <filename>devpyshell</filename>, you
-            can exit the shell either by using Ctrl+d or closing the terminal
-            window.
-        </para>
-    </section>
-
-    <section id='dev-building'>
-        <title>Building</title>
-
-        <para>
-            This section describes various build procedures.
-            For example, the steps needed for a simple build, a target that
-            uses multiple configurations, building an image for more than
-            one machine, and so forth.
-        </para>
-
-        <section id='dev-building-a-simple-image'>
-            <title>Building a Simple Image</title>
-
-            <para>
-                In the development environment, you need to build an image
-                whenever you change hardware support, add or change system
-                libraries, or add or change services that have dependencies.
-                Several methods exist that allow you to build an image within
-                the Yocto Project.
-                This section presents the basic steps you need to build a
-                simple image using BitBake from a build host running Linux.
-                <note><title>Notes</title>
-                    <itemizedlist>
-                        <listitem><para>
-                            For information on how to build an image using
-                            <ulink url='&YOCTO_DOCS_REF_URL;#toaster-term'>Toaster</ulink>,
-                            see the
-                            <ulink url='&YOCTO_DOCS_TOAST_URL;'>Toaster User Manual</ulink>.
-                            </para></listitem>
-                        <listitem><para>
-                            For information on how to use
-                            <filename>devtool</filename> to build images, see
-                            the
-                            "<ulink url='&YOCTO_DOCS_SDK_URL;#using-devtool-in-your-sdk-workflow'>Using <filename>devtool</filename> in Your SDK Workflow</ulink>"
-                            section in the Yocto Project Application
-                            Development and the Extensible Software Development
-                            Kit (eSDK) manual.
-                            </para></listitem>
-                        <listitem><para>
-                            For a quick example on how to build an image using
-                            the OpenEmbedded build system, see the
-                            <ulink url='&YOCTO_DOCS_BRIEF_URL;'>Yocto Project Quick Build</ulink>
-                            document.
-                            </para></listitem>
-                    </itemizedlist>
-                </note>
-            </para>
-
-            <para>
-                The build process creates an entire Linux distribution from
-                source and places it in your
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                under <filename>tmp/deploy/images</filename>.
-                For detailed information on the build process using BitBake,
-                see the
-                "<ulink url='&YOCTO_DOCS_OM_URL;#images-dev-environment'>Images</ulink>"
-                section in the Yocto Project Overview and Concepts Manual.
-            </para>
-
-            <para>
-                The following figure and list overviews the build process:
-                <imagedata fileref="figures/bitbake-build-flow.png" width="7in" depth="4in" align="center" scalefit="1" />
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Set up Your Host Development System to Support
-                        Development Using the Yocto Project</emphasis>:
-                        See the
-                        "<link linkend='dev-manual-start'>Setting Up to Use the Yocto Project</link>"
-                        section for options on how to get a build host ready to
-                        use the Yocto Project.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Initialize the Build Environment:</emphasis>
-                        Initialize the build environment by sourcing the build
-                        environment script (i.e.
-                        <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>):
-                        <literallayout class='monospaced'>
-     $ source &OE_INIT_FILE; [<replaceable>build_dir</replaceable>]
-                        </literallayout></para>
-
-                        <para>When you use the initialization script, the
-                        OpenEmbedded build system uses
-                        <filename>build</filename> as the default Build
-                        Directory in your current work directory.
-                        You can use a <replaceable>build_dir</replaceable>
-                        argument with the script to specify a different build
-                        directory.
-                        <note><title>Tip</title>
-                            A common practice is to use a different Build
-                            Directory for different targets.
-                            For example, <filename>~/build/x86</filename> for a
-                            <filename>qemux86</filename> target, and
-                            <filename>~/build/arm</filename> for a
-                            <filename>qemuarm</filename> target.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Make Sure Your <filename>local.conf</filename>
-                        File is Correct:</emphasis>
-                        Ensure the <filename>conf/local.conf</filename>
-                        configuration file, which is found in the Build
-                        Directory, is set up how you want it.
-                        This file defines many aspects of the build environment
-                        including the target machine architecture through the
-                        <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'>MACHINE</ulink></filename> variable,
-                        the packaging format used during the build
-                        (<ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></ulink>),
-                        and a centralized tarball download directory through the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DL_DIR'><filename>DL_DIR</filename></ulink> variable.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Build the Image:</emphasis>
-                        Build the image using the <filename>bitbake</filename>
-                        command:
-                        <literallayout class='monospaced'>
-     $ bitbake <replaceable>target</replaceable>
-                        </literallayout>
-                        <note>
-                            For information on BitBake, see the
-                            <ulink url='&YOCTO_DOCS_BB_URL;'>BitBake User Manual</ulink>.
-                        </note>
-                        The <replaceable>target</replaceable> is the name of the
-                        recipe you want to build.
-                        Common targets are the images in
-                        <filename>meta/recipes-core/images</filename>,
-                        <filename>meta/recipes-sato/images</filename>, and so
-                        forth all found in the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>.
-                        Or, the target can be the name of a recipe for a
-                        specific piece of software such as BusyBox.
-                        For more details about the images the OpenEmbedded build
-                        system supports, see the
-                        "<ulink url='&YOCTO_DOCS_REF_URL;#ref-images'>Images</ulink>"
-                        chapter in the Yocto Project Reference Manual.</para>
-
-                        <para>As an example, the following command builds the
-                        <filename>core-image-minimal</filename> image:
-                        <literallayout class='monospaced'>
-     $ bitbake core-image-minimal
-                        </literallayout>
-                        Once an image has been built, it often needs to be
-                        installed.
-                        The images and kernels built by the OpenEmbedded
-                        build system are placed in the Build Directory in
-                        <filename class="directory">tmp/deploy/images</filename>.
-                        For information on how to run pre-built images such as
-                        <filename>qemux86</filename> and <filename>qemuarm</filename>,
-                        see the
-                        <ulink url='&YOCTO_DOCS_SDK_URL;'>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</ulink>
-                        manual.
-                        For information about how to install these images,
-                        see the documentation for your particular board or
-                        machine.
-                        </para></listitem>
-                </orderedlist>
-            </para>
-        </section>
-
-        <section id='dev-building-images-for-multiple-targets-using-multiple-configurations'>
-            <title>Building Images for Multiple Targets Using Multiple Configurations</title>
-
-            <para>
-                You can use a single <filename>bitbake</filename> command
-                to build multiple images or packages for different targets
-                where each image or package requires a different configuration
-                (multiple configuration builds).
-                The builds, in this scenario, are sometimes referred to as
-                "multiconfigs", and this section uses that term throughout.
-            </para>
-
-            <para>
-                This section describes how to set up for multiple
-                configuration builds and how to account for cross-build
-                dependencies between the multiconfigs.
-            </para>
-
-            <section id='dev-setting-up-and-running-a-multiple-configuration-build'>
-                <title>Setting Up and Running a Multiple Configuration Build</title>
-
-                <para>
-                    To accomplish a multiple configuration build, you must
-                    define each target's configuration separately using
-                    a parallel configuration file in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>,
-                    and you must follow a required file hierarchy.
-                    Additionally, you must enable the multiple configuration
-                    builds in your <filename>local.conf</filename> file.
-                </para>
-
-                <para>
-                    Follow these steps to set up and execute multiple
-                    configuration builds:
-                    <itemizedlist>
-                        <listitem><para>
-                            <emphasis>Create Separate Configuration Files</emphasis>:
-                            You need to create a single configuration file for
-                            each build target (each multiconfig).
-                            Minimally, each configuration file must define the
-                            machine and the temporary directory BitBake uses
-                            for the build.
-                            Suggested practice dictates that you do not
-                            overlap the temporary directories
-                            used during the builds.
-                            However, it is possible that you can share the
-                            temporary directory
-                            (<ulink url='&YOCTO_DOCS_REF_URL;#var-TMPDIR'><filename>TMPDIR</filename></ulink>).
-                            For example, consider a scenario with two
-                            different multiconfigs for the same
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>: "qemux86" built for
-                            two distributions such as "poky" and "poky-lsb".
-                            In this case, you might want to use the same
-                            <filename>TMPDIR</filename>.</para>
-
-                            <para>Here is an example showing the minimal
-                            statements needed in a configuration file for
-                            a "qemux86" target whose temporary build directory
-                            is <filename>tmpmultix86</filename>:
-                            <literallayout class='monospaced'>
-     MACHINE="qemux86"
-     TMPDIR="${TOPDIR}/tmpmultix86"
-                            </literallayout></para>
-
-                            <para>The location for these multiconfig
-                            configuration files is specific.
-                            They must reside in the current build directory in
-                            a sub-directory of <filename>conf</filename> named
-                            <filename>multiconfig</filename>.
-                            Following is an example that defines two
-                            configuration files for the "x86" and "arm"
-                            multiconfigs:
-                            <imagedata fileref="figures/multiconfig_files.png" align="center" width="4in" depth="3in" />
-                            </para>
-
-                            <para>The reason for this required file hierarchy
-                            is because the <filename>BBPATH</filename> variable
-                            is not constructed until the layers are parsed.
-                            Consequently, using the configuration file as a
-                            pre-configuration file is not possible unless it is
-                            located in the current working directory.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Add the BitBake Multi-configuration Variable to the Local Configuration File</emphasis>:
-                            Use the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-BBMULTICONFIG'><filename>BBMULTICONFIG</filename></ulink>
-                            variable in your
-                            <filename>conf/local.conf</filename> configuration
-                            file to specify each multiconfig.
-                            Continuing with the example from the previous
-                            figure, the <filename>BBMULTICONFIG</filename>
-                            variable needs to enable two multiconfigs: "x86"
-                            and "arm" by specifying each configuration file:
-                            <literallayout class='monospaced'>
-     BBMULTICONFIG = "x86 arm"
-                            </literallayout>
-                            <note>
-                                A "default" configuration already exists by
-                                definition.
-                                This configuration is named: "" (i.e. empty
-                                string) and is defined by the variables coming
-                                from your <filename>local.conf</filename> file.
-                                Consequently, the previous example actually
-                                adds two additional configurations to your
-                                build: "arm" and "x86" along with "".
-                            </note>
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Launch BitBake</emphasis>:
-                            Use the following BitBake command form to launch the
-                            multiple configuration build:
-                            <literallayout class='monospaced'>
-     $ bitbake [mc:<replaceable>multiconfigname</replaceable>:]<replaceable>target</replaceable> [[[mc:<replaceable>multiconfigname</replaceable>:]<replaceable>target</replaceable>] ... ]
-                            </literallayout>
-                            For the example in this section, the following
-                            command applies:
-                            <literallayout class='monospaced'>
-     $ bitbake mc:x86:core-image-minimal mc:arm:core-image-sato mc::core-image-base
-                            </literallayout>
-                            The previous BitBake command builds a
-                            <filename>core-image-minimal</filename> image that
-                            is configured through the
-                            <filename>x86.conf</filename> configuration file,
-                            a <filename>core-image-sato</filename>
-                            image that is configured through the
-                            <filename>arm.conf</filename> configuration file
-                            and a <filename>core-image-base</filename> that is
-                            configured through your
-                            <filename>local.conf</filename> configuration file.
-                            </para></listitem>
-                    </itemizedlist>
-                    <note>
-                        Support for multiple configuration builds in the
-                        Yocto Project &DISTRO; (&DISTRO_NAME;) Release does
-                        not include Shared State (sstate) optimizations.
-                        Consequently, if a build uses the same object twice
-                        in, for example, two different
-                        <filename>TMPDIR</filename> directories, the build
-                        either loads from an existing sstate cache for that
-                        build at the start or builds the object fresh.
-                    </note>
-                </para>
-            </section>
-
-            <section id='dev-enabling-multiple-configuration-build-dependencies'>
-                <title>Enabling Multiple Configuration Build Dependencies</title>
-
-                <para>
-                    Sometimes dependencies can exist between targets
-                    (multiconfigs) in a multiple configuration build.
-                    For example, suppose that in order to build a
-                    <filename>core-image-sato</filename> image for an "x86"
-                    multiconfig, the root filesystem of an "arm"
-                    multiconfig must exist.
-                    This dependency is essentially that the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-image'><filename>do_image</filename></ulink>
-                    task in the <filename>core-image-sato</filename> recipe
-                    depends on the completion of the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-rootfs'><filename>do_rootfs</filename></ulink>
-                    task of the <filename>core-image-minimal</filename>
-                    recipe.
-                </para>
-
-                <para>
-                    To enable dependencies in a multiple configuration
-                    build, you must declare the dependencies in the recipe
-                    using the following statement form:
-                    <literallayout class='monospaced'>
-     <replaceable>task_or_package</replaceable>[mcdepends] = "mc:<replaceable>from_multiconfig</replaceable>:<replaceable>to_multiconfig</replaceable>:<replaceable>recipe_name</replaceable>:<replaceable>task_on_which_to_depend</replaceable>"
-                    </literallayout>
-                    To better show how to use this statement, consider the
-                    example scenario from the first paragraph of this section.
-                    The following statement needs to be added to the recipe
-                    that builds the <filename>core-image-sato</filename>
-                    image:
-                    <literallayout class='monospaced'>
-     do_image[mcdepends] = "mc:x86:arm:core-image-minimal:do_rootfs"
-                    </literallayout>
-                    In this example, the
-                    <replaceable>from_multiconfig</replaceable> is "x86".
-                    The <replaceable>to_multiconfig</replaceable> is "arm".
-                    The task on which the <filename>do_image</filename> task
-                    in the recipe depends is the <filename>do_rootfs</filename>
-                    task from the <filename>core-image-minimal</filename>
-                    recipe associated with the "arm" multiconfig.
-               </para>
-
-               <para>
-                   Once you set up this dependency, you can build the
-                   "x86" multiconfig using a BitBake command as follows:
-                   <literallayout class='monospaced'>
-     $ bitbake mc:x86:core-image-sato
-                   </literallayout>
-                   This command executes all the tasks needed to create
-                   the <filename>core-image-sato</filename> image for the
-                   "x86" multiconfig.
-                   Because of the dependency, BitBake also executes through
-                   the <filename>do_rootfs</filename> task for the "arm"
-                   multiconfig build.
-               </para>
-
-               <para>
-                   Having a recipe depend on the root filesystem of another
-                   build might not seem that useful.
-                   Consider this change to the statement in the
-                   <filename>core-image-sato</filename> recipe:
-                   <literallayout class='monospaced'>
-     do_image[mcdepends] = "mc:x86:arm:core-image-minimal:do_image"
-                   </literallayout>
-                   In this case, BitBake must create the
-                   <filename>core-image-minimal</filename> image for the
-                   "arm" build since the "x86" build depends on it.
-               </para>
-
-               <para>
-                   Because "x86" and "arm" are enabled for multiple
-                   configuration builds and have separate configuration
-                   files, BitBake places the artifacts for each build in the
-                   respective temporary build directories (i.e.
-                   <ulink url='&YOCTO_DOCS_REF_URL;#var-TMPDIR'><filename>TMPDIR</filename></ulink>).
-               </para>
-            </section>
-        </section>
-
-        <section id='building-an-initramfs-image'>
-            <title>Building an Initial RAM Filesystem (initramfs) Image</title>
-
-            <para>
-                An initial RAM filesystem (initramfs) image provides a temporary
-                root filesystem used for early system initialization (e.g.
-                loading of modules needed to locate and mount the "real" root
-                filesystem).
-                <note>
-                    The initramfs image is the successor of initial RAM disk
-                    (initrd).
-                    It is a "copy in and out" (cpio) archive of the initial
-                    filesystem that gets loaded into memory during the Linux
-                    startup process.
-                    Because Linux uses the contents of the archive during
-                    initialization, the initramfs image needs to contain all of the
-                    device drivers and tools needed to mount the final root
-                    filesystem.
-                </note>
-            </para>
-
-            <para>
-                Follow these steps to create an initramfs image:
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Create the initramfs Image Recipe:</emphasis>
-                        You can reference the
-                        <filename>core-image-minimal-initramfs.bb</filename>
-                        recipe found in the <filename>meta/recipes-core</filename>
-                        directory of the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                        as an example from which to work.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Decide if You Need to Bundle the initramfs Image
-                        Into the Kernel Image:</emphasis>
-                        If you want the initramfs image that is built to be
-                        bundled in with the kernel image, set the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-INITRAMFS_IMAGE_BUNDLE'><filename>INITRAMFS_IMAGE_BUNDLE</filename></ulink>
-                        variable to "1" in your <filename>local.conf</filename>
-                        configuration file and set the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-INITRAMFS_IMAGE'><filename>INITRAMFS_IMAGE</filename></ulink>
-                        variable in the recipe that builds the kernel image.
-                        <note><title>Tip</title>
-                            It is recommended that you do bundle the initramfs
-                            image with the kernel image to avoid circular
-                            dependencies between the kernel recipe and the
-                            initramfs recipe should the initramfs image
-                            include kernel modules.
-                        </note>
-                        Setting the <filename>INITRAMFS_IMAGE_BUNDLE</filename>
-                        flag causes the initramfs image to be unpacked
-                        into the <filename>${B}/usr/</filename> directory.
-                        The unpacked initramfs image is then passed to the kernel's
-                        <filename>Makefile</filename> using the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-CONFIG_INITRAMFS_SOURCE'><filename>CONFIG_INITRAMFS_SOURCE</filename></ulink>
-                        variable, allowing the initramfs image to be built into
-                        the kernel normally.
-                        <note>
-                            If you choose to not bundle the initramfs image with
-                            the kernel image, you are essentially using an
-                            <ulink url='https://en.wikipedia.org/wiki/Initrd'>Initial RAM Disk (initrd)</ulink>.
-                            Creating an initrd is handled primarily through the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-INITRD_IMAGE'><filename>INITRD_IMAGE</filename></ulink>,
-                            <filename>INITRD_LIVE</filename>, and
-                            <filename>INITRD_IMAGE_LIVE</filename> variables.
-                            For more information, see the
-                            <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta/classes/image-live.bbclass'><filename>image-live.bbclass</filename></ulink>
-                            file.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Optionally Add Items to the initramfs Image
-                        Through the initramfs Image Recipe:</emphasis>
-                        If you add items to the initramfs image by way of its
-                        recipe, you should use
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_INSTALL'><filename>PACKAGE_INSTALL</filename></ulink>
-                        rather than
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_INSTALL'><filename>IMAGE_INSTALL</filename></ulink>.
-                        <filename>PACKAGE_INSTALL</filename> gives more direct
-                        control of what is added to the image as compared to
-                        the defaults you might not necessarily want that are
-                        set by the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-image'><filename>image</filename></ulink>
-                        or
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-core-image'><filename>core-image</filename></ulink>
-                        classes.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Build the Kernel Image and the initramfs
-                        Image:</emphasis>
-                        Build your kernel image using BitBake.
-                        Because the initramfs image recipe is a dependency of the
-                        kernel image, the initramfs image is built as well and
-                        bundled with the kernel image if you used the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-INITRAMFS_IMAGE_BUNDLE'><filename>INITRAMFS_IMAGE_BUNDLE</filename></ulink>
-                        variable described earlier.
-                        </para></listitem>
-                </orderedlist>
-            </para>
-        </section>
-
-        <section id='building-a-tiny-system'>
-            <title>Building a Tiny System</title>
-
-            <para>
-                Very small distributions have some significant advantages such
-                as requiring less on-die or in-package memory (cheaper), better
-                performance through efficient cache usage, lower power requirements
-                due to less memory, faster boot times, and reduced development
-                overhead.
-                Some real-world examples where a very small distribution gives
-                you distinct advantages are digital cameras, medical devices,
-                and small headless systems.
-            </para>
-
-            <para>
-                This section presents information that shows you how you can
-                trim your distribution to even smaller sizes than the
-                <filename>poky-tiny</filename> distribution, which is around
-                5 Mbytes, that can be built out-of-the-box using the Yocto Project.
-            </para>
-
-            <section id='tiny-system-overview'>
-                <title>Overview</title>
-
-                <para>
-                    The following list presents the overall steps you need to
-                    consider and perform to create distributions with smaller
-                    root filesystems, achieve faster boot times, maintain your critical
-                    functionality, and avoid initial RAM disks:
-                    <itemizedlist>
-                        <listitem><para>
-                            <link linkend='goals-and-guiding-principles'>Determine your goals and guiding principles.</link>
-                            </para></listitem>
-                        <listitem><para>
-                            <link linkend='understand-what-gives-your-image-size'>Understand what contributes to your image size.</link>
-                            </para></listitem>
-                        <listitem><para>
-                            <link linkend='trim-the-root-filesystem'>Reduce the size of the root filesystem.</link>
-                            </para></listitem>
-                        <listitem><para>
-                            <link linkend='trim-the-kernel'>Reduce the size of the kernel.</link>
-                            </para></listitem>
-                        <listitem><para>
-                            <link linkend='remove-package-management-requirements'>Eliminate packaging requirements.</link>
-                            </para></listitem>
-                        <listitem><para>
-                            <link linkend='look-for-other-ways-to-minimize-size'>Look for other ways to minimize size.</link>
-                            </para></listitem>
-                        <listitem><para>
-                            <link linkend='iterate-on-the-process'>Iterate on the process.</link>
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-
-            <section id='goals-and-guiding-principles'>
-                <title>Goals and Guiding Principles</title>
-
-                <para>
-                    Before you can reach your destination, you need to know
-                    where you are going.
-                    Here is an example list that you can use as a guide when
-                    creating very small distributions:
-                    <itemizedlist>
-                        <listitem><para>Determine how much space you need
-                            (e.g. a kernel that is 1 Mbyte or less and
-                            a root filesystem that is 3 Mbytes or less).
-                            </para></listitem>
-                        <listitem><para>Find the areas that are currently
-                            taking 90% of the space and concentrate on reducing
-                            those areas.
-                            </para></listitem>
-                        <listitem><para>Do not create any difficult "hacks"
-                            to achieve your goals.</para></listitem>
-                        <listitem><para>Leverage the device-specific
-                            options.</para></listitem>
-                        <listitem><para>Work in a separate layer so that you
-                            keep changes isolated.
-                            For information on how to create layers, see
-                            the "<link linkend='understanding-and-creating-layers'>Understanding and Creating Layers</link>" section.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-
-            <section id='understand-what-gives-your-image-size'>
-                <title>Understand What Contributes to Your Image Size</title>
-
-                <para>
-                    It is easiest to have something to start with when creating
-                    your own distribution.
-                    You can use the Yocto Project out-of-the-box to create the
-                    <filename>poky-tiny</filename> distribution.
-                    Ultimately, you will want to make changes in your own
-                    distribution that are likely modeled after
-                    <filename>poky-tiny</filename>.
-                    <note>
-                        To use <filename>poky-tiny</filename> in your build,
-                        set the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO'><filename>DISTRO</filename></ulink>
-                        variable in your
-                        <filename>local.conf</filename> file to "poky-tiny"
-                        as described in the
-                        "<link linkend='creating-your-own-distribution'>Creating Your Own Distribution</link>"
-                        section.
-                    </note>
-                </para>
-
-                <para>
-                    Understanding some memory concepts will help you reduce the
-                    system size.
-                    Memory consists of static, dynamic, and temporary memory.
-                    Static memory is the TEXT (code), DATA (initialized data
-                    in the code), and BSS (uninitialized data) sections.
-                    Dynamic memory represents memory that is allocated at runtime:
-                    stacks, hash tables, and so forth.
-                    Temporary memory is recovered after the boot process.
-                    This memory consists of memory used for decompressing
-                    the kernel and for the <filename>__init__</filename>
-                    functions.
-                </para>
-
-                <para>
-                    To help you see where you currently are with kernel and root
-                    filesystem sizes, you can use two tools found in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink> in
-                    the <filename>scripts/tiny/</filename> directory:
-                    <itemizedlist>
-                        <listitem><para><filename>ksize.py</filename>: Reports
-                            component sizes for the kernel build objects.
-                            </para></listitem>
-                        <listitem><para><filename>dirsize.py</filename>: Reports
-                            component sizes for the root filesystem.</para></listitem>
-                    </itemizedlist>
-                    This next tool and command help you organize configuration
-                    fragments and view file dependencies in a human-readable form:
-                    <itemizedlist>
-                        <listitem><para><filename>merge_config.sh</filename>:
-                            Helps you manage configuration files and fragments
-                            within the kernel.
-                            With this tool, you can merge individual configuration
-                            fragments together.
-                            The tool allows you to make overrides and warns you
-                            of any missing configuration options.
-                            The tool is ideal for allowing you to iterate on
-                            configurations, create minimal configurations, and
-                            create configuration files for different machines
-                            without having to duplicate your process.</para>
-                            <para>The <filename>merge_config.sh</filename> script is
-                            part of the Linux Yocto kernel Git repositories
-                            (i.e. <filename>linux-yocto-3.14</filename>,
-                            <filename>linux-yocto-3.10</filename>,
-                            <filename>linux-yocto-3.8</filename>, and so forth)
-                            in the
-                            <filename>scripts/kconfig</filename> directory.</para>
-                            <para>For more information on configuration fragments,
-                            see the
-                            "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#creating-config-fragments'>Creating Configuration Fragments</ulink>"
-                            section in the Yocto Project Linux Kernel Development
-                            Manual.
-                            </para></listitem>
-                        <listitem><para><filename>bitbake -u taskexp -g <replaceable>bitbake_target</replaceable></filename>:
-                            Using the BitBake command with these options brings up
-                            a Dependency Explorer from which you can view file
-                            dependencies.
-                            Understanding these dependencies allows you to make
-                            informed decisions when cutting out various pieces of the
-                            kernel and root filesystem.</para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-
-            <section id='trim-the-root-filesystem'>
-                <title>Trim the Root Filesystem</title>
-
-                <para>
-                    The root filesystem is made up of packages for booting,
-                    libraries, and applications.
-                    To change things, you can configure how the packaging happens,
-                    which changes the way you build them.
-                    You can also modify the filesystem itself or select a different
-                    filesystem.
-                </para>
-
-                <para>
-                    First, find out what is hogging your root filesystem by running the
-                    <filename>dirsize.py</filename> script from your root directory:
-                    <literallayout class='monospaced'>
-     $ cd <replaceable>root-directory-of-image</replaceable>
-     $ dirsize.py 100000 > dirsize-100k.log
-     $ cat dirsize-100k.log
-                    </literallayout>
-                    You can apply a filter to the script to ignore files under
-                    a certain size.
-                    The previous example filters out any files below 100 Kbytes.
-                    The sizes reported by the tool are uncompressed, and thus
-                    will be smaller by a relatively constant factor in a
-                    compressed root filesystem.
-                    When you examine your log file, you can focus on areas of the
-                    root filesystem that take up large amounts of memory.
-                </para>
-
-                <para>
-                    You need to be sure that what you eliminate does not cripple
-                    the functionality you need.
-                    One way to see how packages relate to each other is by using
-                    the Dependency Explorer UI with the BitBake command:
-                    <literallayout class='monospaced'>
-     $ cd <replaceable>image-directory</replaceable>
-     $ bitbake -u taskexp -g <replaceable>image</replaceable>
-                    </literallayout>
-                    Use the interface to select potential packages you wish to
-                    eliminate and see their dependency relationships.
-                </para>
-
-                <para>
-                    When deciding how to reduce the size, get rid of packages that
-                    result in minimal impact on the feature set.
-                    For example, you might not need a VGA display.
-                    Or, you might be able to get by with <filename>devtmpfs</filename>
-                    and <filename>mdev</filename> instead of
-                    <filename>udev</filename>.
-                </para>
-
-                <para>
-                    Use your <filename>local.conf</filename> file to make changes.
-                    For example, to eliminate <filename>udev</filename> and
-                    <filename>glib</filename>, set the following in the
-                    local configuration file:
-                    <literallayout class='monospaced'>
-     VIRTUAL-RUNTIME_dev_manager = ""
-                    </literallayout>
-                </para>
-
-                <para>
-                    Finally, you should consider exactly the type of root
-                    filesystem you need to meet your needs while also reducing
-                    its size.
-                    For example, consider <filename>cramfs</filename>,
-                    <filename>squashfs</filename>, <filename>ubifs</filename>,
-                    <filename>ext2</filename>, or an <filename>initramfs</filename>
-                    using <filename>initramfs</filename>.
-                    Be aware that <filename>ext3</filename> requires a 1 Mbyte
-                    journal.
-                    If you are okay with running read-only, you do not need this
-                    journal.
-                </para>
-
-                <note>
-                    After each round of elimination, you need to rebuild your
-                    system and then use the tools to see the effects of your
-                    reductions.
-                </note>
-            </section>
-
-            <section id='trim-the-kernel'>
-                <title>Trim the Kernel</title>
-
-                <para>
-                    The kernel is built by including policies for hardware-independent
-                    aspects.
-                    What subsystems do you enable?
-                    For what architecture are you building?
-                    Which drivers do you build by default?
-                    <note>You can modify the kernel source if you want to help
-                        with boot time.
-                    </note>
-                </para>
-
-                <para>
-                    Run the <filename>ksize.py</filename> script from the top-level
-                    Linux build directory to get an idea of what is making up
-                    the kernel:
-                    <literallayout class='monospaced'>
-     $ cd <replaceable>top-level-linux-build-directory</replaceable>
-     $ ksize.py > ksize.log
-     $ cat ksize.log
-                    </literallayout>
-                    When you examine the log, you will see how much space is
-                    taken up with the built-in <filename>.o</filename> files for
-                    drivers, networking, core kernel files, filesystem, sound,
-                    and so forth.
-                    The sizes reported by the tool are uncompressed, and thus
-                    will be smaller by a relatively constant factor in a compressed
-                    kernel image.
-                    Look to reduce the areas that are large and taking up around
-                    the "90% rule."
-                </para>
-
-                <para>
-                    To examine, or drill down, into any particular area, use the
-                    <filename>-d</filename> option with the script:
-                    <literallayout class='monospaced'>
-     $ ksize.py -d > ksize.log
-                    </literallayout>
-                    Using this option breaks out the individual file information
-                    for each area of the kernel (e.g. drivers, networking, and
-                    so forth).
-                </para>
-
-                <para>
-                    Use your log file to see what you can eliminate from the kernel
-                    based on features you can let go.
-                    For example, if you are not going to need sound, you do not
-                    need any drivers that support sound.
-                </para>
-
-                <para>
-                    After figuring out what to eliminate, you need to reconfigure
-                    the kernel to reflect those changes during the next build.
-                    You could run <filename>menuconfig</filename> and make all your
-                    changes at once.
-                    However, that makes it difficult to see the effects of your
-                    individual eliminations and also makes it difficult to replicate
-                    the changes for perhaps another target device.
-                    A better method is to start with no configurations using
-                    <filename>allnoconfig</filename>, create configuration
-                    fragments for individual changes, and then manage the
-                    fragments into a single configuration file using
-                    <filename>merge_config.sh</filename>.
-                    The tool makes it easy for you to iterate using the
-                    configuration change and build cycle.
-                </para>
-
-                <para>
-                    Each time you make configuration changes, you need to rebuild
-                    the kernel and check to see what impact your changes had on
-                    the overall size.
-                </para>
-            </section>
-
-            <section id='remove-package-management-requirements'>
-                <title>Remove Package Management Requirements</title>
-
-                <para>
-                    Packaging requirements add size to the image.
-                    One way to reduce the size of the image is to remove all the
-                    packaging requirements from the image.
-                    This reduction includes both removing the package manager
-                    and its unique dependencies as well as removing the package
-                    management data itself.
-                </para>
-
-                <para>
-                    To eliminate all the packaging requirements for an image,
-                    be sure that "package-management" is not part of your
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></ulink>
-                    statement for the image.
-                    When you remove this feature, you are removing the package
-                    manager as well as its dependencies from the root filesystem.
-                </para>
-            </section>
-
-            <section id='look-for-other-ways-to-minimize-size'>
-                <title>Look for Other Ways to Minimize Size</title>
-
-                <para>
-                    Depending on your particular circumstances, other areas that you
-                    can trim likely exist.
-                    The key to finding these areas is through tools and methods
-                    described here combined with experimentation and iteration.
-                    Here are a couple of areas to experiment with:
-                    <itemizedlist>
-                        <listitem><para><filename>glibc</filename>:
-                            In general, follow this process:
-                            <orderedlist>
-                                <listitem><para>Remove <filename>glibc</filename>
-                                    features from
-                                    <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></ulink>
-                                    that you think you do not need.</para></listitem>
-                                <listitem><para>Build your distribution.
-                                    </para></listitem>
-                                <listitem><para>If the build fails due to missing
-                                    symbols in a package, determine if you can
-                                    reconfigure the package to not need those
-                                    features.
-                                    For example, change the configuration to not
-                                    support wide character support as is done for
-                                    <filename>ncurses</filename>.
-                                    Or, if support for those characters is needed,
-                                    determine what <filename>glibc</filename>
-                                    features provide the support and restore the
-                                    configuration.
-                                    </para></listitem>
-                                <listitem><para>Rebuild and repeat the process.
-                                    </para></listitem>
-                            </orderedlist></para></listitem>
-                        <listitem><para><filename>busybox</filename>:
-                            For BusyBox, use a process similar as described for
-                            <filename>glibc</filename>.
-                            A difference is you will need to boot the resulting
-                            system to see if you are able to do everything you
-                            expect from the running system.
-                            You need to be sure to integrate configuration fragments
-                            into Busybox because BusyBox handles its own core
-                            features and then allows you to add configuration
-                            fragments on top.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-
-            <section id='iterate-on-the-process'>
-                <title>Iterate on the Process</title>
-
-                <para>
-                    If you have not reached your goals on system size, you need
-                    to iterate on the process.
-                    The process is the same.
-                    Use the tools and see just what is taking up 90% of the root
-                    filesystem and the kernel.
-                    Decide what you can eliminate without limiting your device
-                    beyond what you need.
-                </para>
-
-                <para>
-                    Depending on your system, a good place to look might be
-                    Busybox, which provides a stripped down
-                    version of Unix tools in a single, executable file.
-                    You might be able to drop virtual terminal services or perhaps
-                    ipv6.
-                </para>
-            </section>
-        </section>
-
-        <section id='building-images-for-more-than-one-machine'>
-            <title>Building Images for More than One Machine</title>
-
-            <para>
-                A common scenario developers face is creating images for several
-                different machines that use the same software environment.
-                In this situation, it is tempting to set the
-                tunings and optimization flags for each build specifically for
-                the targeted hardware (i.e. "maxing out" the tunings).
-                Doing so can considerably add to build times and package feed
-                maintenance collectively for the machines.
-                For example, selecting tunes that are extremely specific to a
-                CPU core used in a system might enable some micro optimizations
-                in GCC for that particular system but would otherwise not gain
-                you much of a performance difference across the other systems
-                as compared to using a more general tuning across all the builds
-                (e.g. setting
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-DEFAULTTUNE'><filename>DEFAULTTUNE</filename></ulink>
-                specifically for each machine's build).
-                Rather than "max out" each build's tunings, you can take steps that
-                cause the OpenEmbedded build system to reuse software across the
-                various machines where it makes sense.
-            </para>
-
-            <para>
-                If build speed and package feed maintenance are considerations,
-                you should consider the points in this section that can help you
-                optimize your tunings to best consider build times and package
-                feed maintenance.
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>Share the Build Directory:</emphasis>
-                        If at all possible, share the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-TMPDIR'><filename>TMPDIR</filename></ulink>
-                        across builds.
-                        The Yocto Project supports switching between different
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
-                        values in the same <filename>TMPDIR</filename>.
-                        This practice is well supported and regularly used by
-                        developers when building for multiple machines.
-                        When you use the same <filename>TMPDIR</filename> for
-                        multiple machine builds, the OpenEmbedded build system can
-                        reuse the existing native and often cross-recipes for
-                        multiple machines.
-                        Thus, build time decreases.
-                        <note>
-                            If
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO'><filename>DISTRO</filename></ulink>
-                            settings change or fundamental configuration settings
-                            such as the filesystem layout, you need to work with
-                            a clean <filename>TMPDIR</filename>.
-                            Sharing <filename>TMPDIR</filename> under these
-                            circumstances might work but since it is not
-                            guaranteed, you should use a clean
-                            <filename>TMPDIR</filename>.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Enable the Appropriate Package Architecture:</emphasis>
-                        By default, the OpenEmbedded build system enables three
-                        levels of package architectures: "all", "tune" or "package",
-                        and "machine".
-                        Any given recipe usually selects one of these package
-                        architectures (types) for its output.
-                        Depending for what a given recipe creates packages, making
-                        sure you enable the appropriate package architecture can
-                        directly impact the build time.</para>
-
-                        <para>A recipe that just generates scripts can enable
-                        "all" architecture because there are no binaries to build.
-                        To specifically enable "all" architecture, be sure your
-                        recipe inherits the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-allarch'><filename>allarch</filename></ulink>
-                        class.
-                        This class is useful for "all" architectures because it
-                        configures many variables so packages can be used across
-                        multiple architectures.</para>
-
-                        <para>If your recipe needs to generate packages that are
-                        machine-specific or when one of the build or runtime
-                        dependencies is already machine-architecture dependent,
-                        which makes your recipe also machine-architecture dependent,
-                        make sure your recipe enables the "machine" package
-                        architecture through the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_ARCH'><filename>MACHINE_ARCH</filename></ulink>
-                        variable:
-                        <literallayout class='monospaced'>
-     PACKAGE_ARCH = "${MACHINE_ARCH}"
-                        </literallayout>
-                        When you do not specifically enable a package
-                        architecture through the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_ARCH'><filename>PACKAGE_ARCH</filename></ulink>,
-                        The OpenEmbedded build system defaults to the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-TUNE_PKGARCH'><filename>TUNE_PKGARCH</filename></ulink>
-                        setting:
-                        <literallayout class='monospaced'>
-     PACKAGE_ARCH = "${TUNE_PKGARCH}"
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Choose a Generic Tuning File if Possible:</emphasis>
-                        Some tunes are more generic and can run on multiple targets
-                        (e.g. an <filename>armv5</filename> set of packages could
-                        run on <filename>armv6</filename> and
-                        <filename>armv7</filename> processors in most cases).
-                        Similarly, <filename>i486</filename> binaries could work
-                        on <filename>i586</filename> and higher processors.
-                        You should realize, however, that advances on newer
-                        processor versions would not be used.</para>
-
-                        <para>If you select the same tune for several different
-                        machines, the OpenEmbedded build system reuses software
-                        previously built, thus speeding up the overall build time.
-                        Realize that even though a new sysroot for each machine is
-                        generated, the software is not recompiled and only one
-                        package feed exists.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Manage Granular Level Packaging:</emphasis>
-                        Sometimes cases exist where injecting another level of
-                        package architecture beyond the three higher levels noted
-                        earlier can be useful.
-                        For example, consider how NXP (formerly Freescale) allows
-                        for the easy reuse of binary packages in their layer
-                        <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/meta-freescale/'><filename>meta-freescale</filename></ulink>.
-                        In this example, the
-                        <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/meta-freescale/tree/classes/fsl-dynamic-packagearch.bbclass'><filename>fsl-dynamic-packagearch</filename></ulink>
-                        class shares GPU packages for i.MX53 boards because
-                        all boards share the AMD GPU.
-                        The i.MX6-based boards can do the same because all boards
-                        share the Vivante GPU.
-                        This class inspects the BitBake datastore to identify if
-                        the package provides or depends on one of the
-                        sub-architecture values.
-                        If so, the class sets the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_ARCH'><filename>PACKAGE_ARCH</filename></ulink>
-                        value based on the <filename>MACHINE_SUBARCH</filename>
-                        value.
-                        If the package does not provide or depend on one of the
-                        sub-architecture values but it matches a value in the
-                        machine-specific filter, it sets
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_ARCH'><filename>MACHINE_ARCH</filename></ulink>.
-                        This behavior reduces the number of packages built and
-                        saves build time by reusing binaries.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Use Tools to Debug Issues:</emphasis>
-                        Sometimes you can run into situations where software is
-                        being rebuilt when you think it should not be.
-                        For example, the OpenEmbedded build system might not be
-                        using shared state between machines when you think it
-                        should be.
-                        These types of situations are usually due to references
-                        to machine-specific variables such as
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>,
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SERIAL_CONSOLES'><filename>SERIAL_CONSOLES</filename></ulink>,
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-XSERVER'><filename>XSERVER</filename></ulink>,
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_FEATURES'><filename>MACHINE_FEATURES</filename></ulink>,
-                        and so forth in code that is supposed to only be
-                        tune-specific or when the recipe depends
-                        (<ulink url='&YOCTO_DOCS_REF_URL;#var-DEPENDS'><filename>DEPENDS</filename></ulink>,
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-RDEPENDS'><filename>RDEPENDS</filename></ulink>,
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-RRECOMMENDS'><filename>RRECOMMENDS</filename></ulink>,
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-RSUGGESTS'><filename>RSUGGESTS</filename></ulink>,
-                        and so forth) on some other recipe that already has
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_ARCH'><filename>PACKAGE_ARCH</filename></ulink>
-                        defined as "${MACHINE_ARCH}".
-                        <note>
-                            Patches to fix any issues identified are most welcome
-                            as these issues occasionally do occur.
-                        </note></para>
-
-                        <para>For such cases, you can use some tools to help you
-                        sort out the situation:
-                        <itemizedlist>
-                            <listitem><para>
-                                <emphasis><filename>sstate-diff-machines.sh</filename>:</emphasis>
-                                You can find this tool in the
-                                <filename>scripts</filename> directory of the
-                                Source Repositories.
-                                See the comments in the script for information on
-                                how to use the tool.
-                                </para></listitem>
-                            <listitem><para>
-                                <emphasis>BitBake's "-S printdiff" Option:</emphasis>
-                                Using this option causes BitBake to try to
-                                establish the closest signature match it can
-                                (e.g. in the shared state cache) and then run
-                                <filename>bitbake-diffsigs</filename> over the
-                                matches to determine the stamps and delta where
-                                these two stamp trees diverge.
-                                </para></listitem>
-                        </itemizedlist>
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id="building-software-from-an-external-source">
-            <title>Building Software from an External Source</title>
-
-            <para>
-                By default, the OpenEmbedded build system uses the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                when building source code.
-                The build process involves fetching the source files, unpacking
-                them, and then patching them if necessary before the build takes
-                place.
-            </para>
-
-            <para>
-                Situations exist where you might want to build software from source
-                files that are external to and thus outside of the
-                OpenEmbedded build system.
-                For example, suppose you have a project that includes a new BSP with
-                a heavily customized kernel.
-                And, you want to minimize exposing the build system to the
-                development team so that they can focus on their project and
-                maintain everyone's workflow as much as possible.
-                In this case, you want a kernel source directory on the development
-                machine where the development occurs.
-                You want the recipe's
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                variable to point to the external directory and use it as is, not
-                copy it.
-            </para>
-
-            <para>
-                To build from software that comes from an external source, all you
-                need to do is inherit the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-externalsrc'><filename>externalsrc</filename></ulink>
-                class and then set the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTERNALSRC'><filename>EXTERNALSRC</filename></ulink>
-                variable to point to your external source code.
-                Here are the statements to put in your
-                <filename>local.conf</filename> file:
-                <literallayout class='monospaced'>
-     INHERIT += "externalsrc"
-     EXTERNALSRC_pn-<replaceable>myrecipe</replaceable> = "<replaceable>path-to-your-source-tree</replaceable>"
-                </literallayout>
-            </para>
-
-            <para>
-                This next example shows how to accomplish the same thing by setting
-                <filename>EXTERNALSRC</filename> in the recipe itself or in the
-                recipe's append file:
-                <literallayout class='monospaced'>
-     EXTERNALSRC = "<replaceable>path</replaceable>"
-     EXTERNALSRC_BUILD = "<replaceable>path</replaceable>"
-                </literallayout>
-                <note>
-                    In order for these settings to take effect, you must globally
-                    or locally inherit the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-externalsrc'><filename>externalsrc</filename></ulink>
-                    class.
-                </note>
-            </para>
-
-            <para>
-                By default, <filename>externalsrc.bbclass</filename> builds
-                the source code in a directory separate from the external source
-                directory as specified by
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTERNALSRC'><filename>EXTERNALSRC</filename></ulink>.
-                If you need to have the source built in the same directory in
-                which it resides, or some other nominated directory, you can set
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTERNALSRC_BUILD'><filename>EXTERNALSRC_BUILD</filename></ulink>
-                to point to that directory:
-                <literallayout class='monospaced'>
-     EXTERNALSRC_BUILD_pn-<replaceable>myrecipe</replaceable> = "<replaceable>path-to-your-source-tree</replaceable>"
-                </literallayout>
-            </para>
-        </section>
-
-        <section id="replicating-a-build-offline">
-            <title>Replicating a Build Offline</title>
-
-            <para>
-                It can be useful to take a "snapshot" of upstream sources
-                used in a build and then use that "snapshot" later to
-                replicate the build offline.
-                To do so, you need to first prepare and populate your downloads
-                directory your "snapshot" of files.
-                Once your downloads directory is ready, you can use it at
-                any time and from any machine to replicate your build.
-            </para>
-
-            <para>
-                Follow these steps to populate your Downloads directory:
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Create a Clean Downloads Directory:</emphasis>
-                        Start with an empty downloads directory
-                        (<ulink url='&YOCTO_DOCS_REF_URL;#var-DL_DIR'><filename>DL_DIR</filename></ulink>).
-                        You start with an empty downloads directory by either
-                        removing the files in the existing directory or by
-                        setting
-                        <filename>DL_DIR</filename> to point to either an
-                        empty location or one that does not yet exist.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Generate Tarballs of the Source Git Repositories:</emphasis>
-                        Edit your <filename>local.conf</filename> configuration
-                        file as follows:
-                        <literallayout class='monospaced'>
-     DL_DIR = "/home/<replaceable>your-download-dir</replaceable>/"
-     BB_GENERATE_MIRROR_TARBALLS = "1"
-                        </literallayout>
-                        During the fetch process in the next step, BitBake
-                        gathers the source files and creates tarballs in
-                        the directory pointed to by <filename>DL_DIR</filename>.
-                        See the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-BB_GENERATE_MIRROR_TARBALLS'><filename>BB_GENERATE_MIRROR_TARBALLS</filename></ulink>
-                        variable for more information.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Populate Your Downloads Directory Without Building:</emphasis>
-                        Use BitBake to fetch your sources but inhibit the
-                        build:
-                        <literallayout class='monospaced'>
-     $ bitbake <replaceable>target</replaceable> --runonly=fetch
-                        </literallayout>
-                        The downloads directory (i.e.
-                        <filename>${DL_DIR}</filename>) now has a "snapshot" of
-                        the source files in the form of tarballs, which can
-                        be used for the build.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Optionally Remove Any Git or other SCM Subdirectories From the Downloads Directory:</emphasis>
-                        If you want, you can clean up your downloads directory
-                        by removing any Git or other Source Control Management
-                        (SCM) subdirectories such as
-                        <filename>${DL_DIR}/git2/*</filename>.
-                        The tarballs already contain these subdirectories.
-                        </para></listitem>
-                </orderedlist>
-            </para>
-
-            <para>
-                Once your downloads directory has everything it needs regarding
-                source files, you can create your "own-mirror" and build
-                your target.
-                Understand that you can use the files to build the target
-                offline from any machine and at any time.
-            </para>
-
-            <para>
-                Follow these steps to build your target using the files in the
-                downloads directory:
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Using Local Files Only:</emphasis>
-                        Inside your <filename>local.conf</filename> file, add
-                        the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SOURCE_MIRROR_URL'><filename>SOURCE_MIRROR_URL</filename></ulink>
-                        variable,
-                        inherit the <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-own-mirrors'><filename>own-mirrors</filename></ulink>
-                        class, and use the
-                        <ulink url='&YOCTO_DOCS_BB_URL;#var-bb-BB_NO_NETWORK'><filename>BB_NO_NETWORK</filename></ulink>
-                        variable to your <filename>local.conf</filename>.
-                        <literallayout class='monospaced'>
-     SOURCE_MIRROR_URL ?= "file:///home/<replaceable>your-download-dir</replaceable>/"
-     INHERIT += "own-mirrors"
-     BB_NO_NETWORK = "1"
-                        </literallayout>
-                        The <filename>SOURCE_MIRROR_URL</filename> and
-                        <filename>own-mirror</filename> class set up the system
-                        to use the downloads directory as your "own mirror".
-                        Using the <filename>BB_NO_NETWORK</filename>
-                        variable makes sure that BitBake's fetching process
-                        in step 3 stays local, which means files from
-                        your "own-mirror" are used.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Start With a Clean Build:</emphasis>
-                        You can start with a clean build by removing the
-                        <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-TMPDIR'><filename>TMPDIR</filename></ulink><filename>}</filename>
-                        directory or using a new
-                        <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Build Your Target:</emphasis>
-                        Use BitBake to build your target:
-                        <literallayout class='monospaced'>
-     $ bitbake <replaceable>target</replaceable>
-                        </literallayout>
-                        The build completes using the known local "snapshot" of
-                        source files from your mirror.
-                        The resulting tarballs for your "snapshot" of source
-                        files are in the downloads directory.
-                        <note>
-                            <para>The offline build does not work if recipes
-                            attempt to find the latest version of software
-                            by setting
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-SRCREV'><filename>SRCREV</filename></ulink>
-                            to
-                            <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-AUTOREV'><filename>AUTOREV</filename></ulink><filename>}</filename>:
-                            <literallayout class='monospaced'>
-     SRCREV = "${AUTOREV}"
-                            </literallayout>
-                            When a recipe sets
-                            <filename>SRCREV</filename> to
-                            <filename>${AUTOREV}</filename>, the build system
-                            accesses the network in an attempt to determine the
-                            latest version of software from the SCM.
-                            Typically, recipes that use
-                            <filename>AUTOREV</filename> are custom or
-                            modified recipes.
-                            Recipes that reside in public repositories
-                            usually do not use <filename>AUTOREV</filename>.
-                            </para>
-
-                            <para>If you do have recipes that use
-                            <filename>AUTOREV</filename>, you can take steps to
-                            still use the recipes in an offline build.
-                            Do the following:
-                                <orderedlist>
-                                    <listitem><para>
-                                        Use a configuration generated by
-                                        enabling
-                                        <link linkend='maintaining-build-output-quality'>build history</link>.
-                                        </para></listitem>
-                                    <listitem><para>
-                                        Use the
-                                        <filename>buildhistory-collect-srcrevs</filename>
-                                        command to collect the stored
-                                        <filename>SRCREV</filename> values from
-                                        the build's history.
-                                        For more information on collecting these
-                                        values, see the
-                                        "<link linkend='build-history-package-information'>Build History Package Information</link>"
-                                        section.
-                                        </para></listitem>
-                                    <listitem><para>
-                                        Once you have the correct source
-                                        revisions, you can modify those recipes
-                                        to to set <filename>SRCREV</filename>
-                                        to specific versions of the software.
-                                        </para></listitem>
-                                </orderedlist>
-                            </para>
-                        </note>
-                        </para></listitem>
-                </orderedlist>
-            </para>
-        </section>
-    </section>
-
-    <section id='speeding-up-a-build'>
-        <title>Speeding Up a Build</title>
-
-        <para>
-            Build time can be an issue.
-            By default, the build system uses simple controls to try and maximize
-            build efficiency.
-            In general, the default settings for all the following variables
-            result in the most efficient build times when dealing with single
-            socket systems (i.e. a single CPU).
-            If you have multiple CPUs, you might try increasing the default
-            values to gain more speed.
-            See the descriptions in the glossary for each variable for more
-            information:
-            <itemizedlist>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-BB_NUMBER_THREADS'><filename>BB_NUMBER_THREADS</filename>:</ulink>
-                    The maximum number of threads BitBake simultaneously executes.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_BB_URL;#var-BB_NUMBER_PARSE_THREADS'><filename>BB_NUMBER_PARSE_THREADS</filename>:</ulink>
-                    The number of threads BitBake uses during parsing.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PARALLEL_MAKE'><filename>PARALLEL_MAKE</filename>:</ulink>
-                    Extra options passed to the <filename>make</filename> command
-                    during the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-compile'><filename>do_compile</filename></ulink>
-                    task in order to specify parallel compilation on the
-                    local build host.
-                    </para></listitem>
-                <listitem><para>
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PARALLEL_MAKEINST'><filename>PARALLEL_MAKEINST</filename>:</ulink>
-                    Extra options passed to the <filename>make</filename> command
-                    during the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>
-                    task in order to specify parallel installation on the
-                    local build host.
-                    </para></listitem>
-            </itemizedlist>
-            As mentioned, these variables all scale to the number of processor
-            cores available on the build system.
-            For single socket systems, this auto-scaling ensures that the build
-            system fundamentally takes advantage of potential parallel operations
-            during the build based on the build machine's capabilities.
-        </para>
-
-        <para>
-            Following are additional factors that can affect build speed:
-            <itemizedlist>
-                <listitem><para>
-                    File system type:
-                    The file system type that the build is being performed on can
-                    also influence performance.
-                    Using <filename>ext4</filename> is recommended as compared
-                    to <filename>ext2</filename> and <filename>ext3</filename>
-                    due to <filename>ext4</filename> improved features
-                    such as extents.
-                    </para></listitem>
-                <listitem><para>
-                    Disabling the updating of access time using
-                    <filename>noatime</filename>:
-                    The <filename>noatime</filename> mount option prevents the
-                    build system from updating file and directory access times.
-                    </para></listitem>
-                <listitem><para>
-                    Setting a longer commit:
-                    Using the "commit=" mount option increases the interval
-                    in seconds between disk cache writes.
-                    Changing this interval from the five second default to
-                    something longer increases the risk of data loss but decreases
-                    the need to write to the disk, thus increasing the build
-                    performance.
-                    </para></listitem>
-                <listitem><para>
-                    Choosing the packaging backend:
-                    Of the available packaging backends, IPK is the fastest.
-                    Additionally, selecting a singular packaging backend also
-                    helps.
-                    </para></listitem>
-                <listitem><para>
-                    Using <filename>tmpfs</filename> for
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-TMPDIR'><filename>TMPDIR</filename></ulink>
-                    as a temporary file system:
-                    While this can help speed up the build, the benefits are
-                    limited due to the compiler using
-                    <filename>-pipe</filename>.
-                    The build system goes to some lengths to avoid
-                    <filename>sync()</filename> calls into the
-                    file system on the principle that if there was a significant
-                    failure, the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                    contents could easily be rebuilt.
-                    </para></listitem>
-                <listitem><para>
-                    Inheriting the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-rm-work'><filename>rm_work</filename></ulink>
-                    class:
-                    Inheriting this class has shown to speed up builds due to
-                    significantly lower amounts of data stored in the data
-                    cache as well as on disk.
-                    Inheriting this class also makes cleanup of
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-TMPDIR'><filename>TMPDIR</filename></ulink>
-                    faster, at the expense of being easily able to dive into the
-                    source code.
-                    File system maintainers have recommended that the fastest way
-                    to clean up large numbers of files is to reformat partitions
-                    rather than delete files due to the linear nature of
-                    partitions.
-                    This, of course, assumes you structure the disk partitions and
-                    file systems in a way that this is practical.
-                    </para></listitem>
-            </itemizedlist>
-            Aside from the previous list, you should keep some trade offs in
-            mind that can help you speed up the build:
-            <itemizedlist>
-                <listitem><para>
-                    Remove items from
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></ulink>
-                    that you might not need.
-                    </para></listitem>
-                <listitem><para>
-                    Exclude debug symbols and other debug information:
-                    If you do not need these symbols and other debug information,
-                    disabling the <filename>*-dbg</filename> package generation
-                    can speed up the build.
-                    You can disable this generation by setting the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-INHIBIT_PACKAGE_DEBUG_SPLIT'><filename>INHIBIT_PACKAGE_DEBUG_SPLIT</filename></ulink>
-                    variable to "1".
-                    </para></listitem>
-                <listitem><para>
-                    Disable static library generation for recipes derived from
-                    <filename>autoconf</filename> or <filename>libtool</filename>:
-                    Following is an example showing how to disable static
-                    libraries and still provide an override to handle exceptions:
-                    <literallayout class='monospaced'>
-     STATICLIBCONF = "--disable-static"
-     STATICLIBCONF_sqlite3-native = ""
-     EXTRA_OECONF += "${STATICLIBCONF}"
-                    </literallayout>
-                    <note><title>Notes</title>
-                        <itemizedlist>
-                            <listitem><para>
-                                Some recipes need static libraries in order to work
-                                correctly (e.g. <filename>pseudo-native</filename>
-                                needs <filename>sqlite3-native</filename>).
-                                Overrides, as in the previous example, account for
-                                these kinds of exceptions.
-                                </para></listitem>
-                            <listitem><para>
-                                Some packages have packaging code that assumes the
-                                presence of the static libraries.
-                                If so, you might need to exclude them as well.
-                                </para></listitem>
-                        </itemizedlist>
-                    </note>
-                </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id="platdev-working-with-libraries">
-        <title>Working With Libraries</title>
-
-        <para>
-            Libraries are an integral part of your system.
-            This section describes some common practices you might find
-            helpful when working with libraries to build your system:
-            <itemizedlist>
-                <listitem><para><link linkend='including-static-library-files'>How to include static library files</link>
-                    </para></listitem>
-                <listitem><para><link linkend='combining-multiple-versions-library-files-into-one-image'>How to use the Multilib feature to combine multiple versions of library files into a single image</link>
-                    </para></listitem>
-                <listitem><para><link linkend='installing-multiple-versions-of-the-same-library'>How to install multiple versions of the same library in parallel on the same system</link>
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <section id='including-static-library-files'>
-            <title>Including Static Library Files</title>
-
-            <para>
-                If you are building a library and the library offers static linking, you can control
-                which static library files (<filename>*.a</filename> files) get included in the
-                built library.
-            </para>
-
-            <para>
-                The <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGES'><filename>PACKAGES</filename></ulink>
-                and <ulink url='&YOCTO_DOCS_REF_URL;#var-FILES'><filename>FILES_*</filename></ulink>
-                variables in the
-                <filename>meta/conf/bitbake.conf</filename> configuration file define how files installed
-                by the <filename>do_install</filename> task are packaged.
-                By default, the <filename>PACKAGES</filename> variable includes
-                <filename>${PN}-staticdev</filename>, which represents all static library files.
-                <note>
-                    Some previously released versions of the Yocto Project
-                    defined the static library files through
-                    <filename>${PN}-dev</filename>.
-                </note>
-                Following is part of the BitBake configuration file, where
-                you can see how the static library files are defined:
-                <literallayout class='monospaced'>
-     PACKAGE_BEFORE_PN ?= ""
-     PACKAGES = "${PN}-dbg ${PN}-staticdev ${PN}-dev ${PN}-doc ${PN}-locale ${PACKAGE_BEFORE_PN} ${PN}"
-     PACKAGES_DYNAMIC = "^${PN}-locale-.*"
-     FILES = ""
-
-     FILES_${PN} = "${bindir}/* ${sbindir}/* ${libexecdir}/* ${libdir}/lib*${SOLIBS} \
-                 ${sysconfdir} ${sharedstatedir} ${localstatedir} \
-                 ${base_bindir}/* ${base_sbindir}/* \
-                 ${base_libdir}/*${SOLIBS} \
-                 ${base_prefix}/lib/udev/rules.d ${prefix}/lib/udev/rules.d \
-                 ${datadir}/${BPN} ${libdir}/${BPN}/* \
-                 ${datadir}/pixmaps ${datadir}/applications \
-                 ${datadir}/idl ${datadir}/omf ${datadir}/sounds \
-                 ${libdir}/bonobo/servers"
-
-     FILES_${PN}-bin = "${bindir}/* ${sbindir}/*"
-
-     FILES_${PN}-doc = "${docdir} ${mandir} ${infodir} ${datadir}/gtk-doc \
-                 ${datadir}/gnome/help"
-     SECTION_${PN}-doc = "doc"
-
-     FILES_SOLIBSDEV ?= "${base_libdir}/lib*${SOLIBSDEV} ${libdir}/lib*${SOLIBSDEV}"
-     FILES_${PN}-dev = "${includedir} ${FILES_SOLIBSDEV} ${libdir}/*.la \
-                     ${libdir}/*.o ${libdir}/pkgconfig ${datadir}/pkgconfig \
-                     ${datadir}/aclocal ${base_libdir}/*.o \
-                     ${libdir}/${BPN}/*.la ${base_libdir}/*.la"
-     SECTION_${PN}-dev = "devel"
-     ALLOW_EMPTY_${PN}-dev = "1"
-     RDEPENDS_${PN}-dev = "${PN} (= ${EXTENDPKGV})"
-
-     FILES_${PN}-staticdev = "${libdir}/*.a ${base_libdir}/*.a ${libdir}/${BPN}/*.a"
-     SECTION_${PN}-staticdev = "devel"
-     RDEPENDS_${PN}-staticdev = "${PN}-dev (= ${EXTENDPKGV})"
-                </literallayout>
-            </para>
-        </section>
-
-        <section id="combining-multiple-versions-library-files-into-one-image">
-            <title>Combining Multiple Versions of Library Files into One Image</title>
-
-            <para>
-                The build system offers the ability to build libraries with different
-                target optimizations or architecture formats and combine these together
-                into one system image.
-                You can link different binaries in the image
-                against the different libraries as needed for specific use cases.
-                This feature is called "Multilib."
-            </para>
-
-            <para>
-                An example would be where you have most of a system compiled in 32-bit
-                mode using 32-bit libraries, but you have something large, like a database
-                engine, that needs to be a 64-bit application and uses 64-bit libraries.
-                Multilib allows you to get the best of both 32-bit and 64-bit libraries.
-            </para>
-
-            <para>
-                While the Multilib feature is most commonly used for 32 and 64-bit differences,
-                the approach the build system uses facilitates different target optimizations.
-                You could compile some binaries to use one set of libraries and other binaries
-                to use a different set of libraries.
-                The libraries could differ in architecture, compiler options, or other
-                optimizations.
-            </para>
-
-            <para>
-                Several examples exist in the
-                <filename>meta-skeleton</filename> layer found in the
-               <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>:
-                <itemizedlist>
-                    <listitem><para><filename>conf/multilib-example.conf</filename>
-                        configuration file</para></listitem>
-                    <listitem><para><filename>conf/multilib-example2.conf</filename>
-                        configuration file</para></listitem>
-                    <listitem><para><filename>recipes-multilib/images/core-image-multilib-example.bb</filename>
-                        recipe</para></listitem>
-                </itemizedlist>
-            </para>
-
-            <section id='preparing-to-use-multilib'>
-                <title>Preparing to Use Multilib</title>
-
-                <para>
-                    User-specific requirements drive the Multilib feature.
-                    Consequently, there is no one "out-of-the-box" configuration that likely
-                    exists to meet your needs.
-                </para>
-
-                <para>
-                    In order to enable Multilib, you first need to ensure your recipe is
-                    extended to support multiple libraries.
-                    Many standard recipes are already extended and support multiple libraries.
-                    You can check in the <filename>meta/conf/multilib.conf</filename>
-                    configuration file in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink> to see how this is
-                    done using the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-BBCLASSEXTEND'><filename>BBCLASSEXTEND</filename></ulink>
-                    variable.
-                    Eventually, all recipes will be covered and this list will
-                    not be needed.
-                </para>
-
-                <para>
-                    For the most part, the Multilib class extension works automatically to
-                    extend the package name from <filename>${PN}</filename> to
-                    <filename>${MLPREFIX}${PN}</filename>, where <filename>MLPREFIX</filename>
-                    is the particular multilib (e.g. "lib32-" or "lib64-").
-                    Standard variables such as
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPENDS'><filename>DEPENDS</filename></ulink>,
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-RDEPENDS'><filename>RDEPENDS</filename></ulink>,
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-RPROVIDES'><filename>RPROVIDES</filename></ulink>,
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-RRECOMMENDS'><filename>RRECOMMENDS</filename></ulink>,
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGES'><filename>PACKAGES</filename></ulink>, and
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGES_DYNAMIC'><filename>PACKAGES_DYNAMIC</filename></ulink>
-                    are automatically extended by the system.
-                    If you are extending any manual code in the recipe, you can use the
-                    <filename>${MLPREFIX}</filename> variable to ensure those names are extended
-                    correctly.
-                    This automatic extension code resides in <filename>multilib.bbclass</filename>.
-                </para>
-            </section>
-
-            <section id='using-multilib'>
-                <title>Using Multilib</title>
-
-                <para>
-                    After you have set up the recipes, you need to define the actual
-                    combination of multiple libraries you want to build.
-                    You accomplish this through your <filename>local.conf</filename>
-                    configuration file in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                    An example configuration would be as follows:
-                    <literallayout class='monospaced'>
-     MACHINE = "qemux86-64"
-     require conf/multilib.conf
-     MULTILIBS = "multilib:lib32"
-     DEFAULTTUNE_virtclass-multilib-lib32 = "x86"
-     IMAGE_INSTALL_append = " lib32-glib-2.0"
-                    </literallayout>
-                    This example enables an
-                    additional library named <filename>lib32</filename> alongside the
-                    normal target packages.
-                    When combining these "lib32" alternatives, the example uses "x86" for tuning.
-                    For information on this particular tuning, see
-                    <filename>meta/conf/machine/include/ia32/arch-ia32.inc</filename>.
-                </para>
-
-                <para>
-                    The example then includes <filename>lib32-glib-2.0</filename>
-                    in all the images, which illustrates one method of including a
-                    multiple library dependency.
-                    You can use a normal image build to include this dependency,
-                    for example:
-                    <literallayout class='monospaced'>
-     $ bitbake core-image-sato
-                    </literallayout>
-                    You can also build Multilib packages specifically with a command like this:
-                    <literallayout class='monospaced'>
-     $ bitbake lib32-glib-2.0
-                    </literallayout>
-                </para>
-            </section>
-
-            <section id='additional-implementation-details'>
-                <title>Additional Implementation Details</title>
-
-                <para>
-                    Generic implementation details as well as details that are
-                    specific to package management systems exist.
-                    Following are implementation details that exist regardless
-                    of the package management system:
-                    <itemizedlist>
-                        <listitem><para>The typical convention used for the
-                            class extension code as used by
-                            Multilib assumes that all package names specified
-                            in
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGES'><filename>PACKAGES</filename></ulink>
-                            that contain <filename>${PN}</filename> have
-                            <filename>${PN}</filename> at the start of the name.
-                            When that convention is not followed and
-                            <filename>${PN}</filename> appears at
-                            the middle or the end of a name, problems occur.
-                            </para></listitem>
-                        <listitem><para>The
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-TARGET_VENDOR'><filename>TARGET_VENDOR</filename></ulink>
-                            value under Multilib will be extended to
-                            "-<replaceable>vendor</replaceable>ml<replaceable>multilib</replaceable>"
-                            (e.g. "-pokymllib32" for a "lib32" Multilib with
-                            Poky).
-                            The reason for this slightly unwieldy contraction
-                            is that any "-" characters in the vendor
-                            string presently break Autoconf's
-                            <filename>config.sub</filename>, and
-                            other separators are problematic for different
-                            reasons.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    For the RPM Package Management System, the following implementation details
-                    exist:
-                    <itemizedlist>
-                        <listitem><para>A unique architecture is defined for the Multilib packages,
-                            along with creating a unique deploy folder under
-                            <filename>tmp/deploy/rpm</filename> in the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                            For example, consider <filename>lib32</filename> in a
-                            <filename>qemux86-64</filename> image.
-                            The possible architectures in the system are "all", "qemux86_64",
-                            "lib32_qemux86_64", and "lib32_x86".</para></listitem>
-                        <listitem><para>The <filename>${MLPREFIX}</filename> variable is stripped from
-                            <filename>${PN}</filename> during RPM packaging.
-                            The naming for a normal RPM package and a Multilib RPM package in a
-                            <filename>qemux86-64</filename> system resolves to something similar to
-                            <filename>bash-4.1-r2.x86_64.rpm</filename> and
-                            <filename>bash-4.1.r2.lib32_x86.rpm</filename>, respectively.
-                            </para></listitem>
-                        <listitem><para>When installing a Multilib image, the RPM backend first
-                            installs the base image and then installs the Multilib libraries.
-                            </para></listitem>
-                        <listitem><para>The build system relies on RPM to resolve the identical files in the
-                            two (or more) Multilib packages.</para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    For the IPK Package Management System, the following implementation details exist:
-                    <itemizedlist>
-                        <listitem><para>The <filename>${MLPREFIX}</filename> is not stripped from
-                            <filename>${PN}</filename> during IPK packaging.
-                            The naming for a normal RPM package and a Multilib IPK package in a
-                            <filename>qemux86-64</filename> system resolves to something like
-                            <filename>bash_4.1-r2.x86_64.ipk</filename> and
-                            <filename>lib32-bash_4.1-rw_x86.ipk</filename>, respectively.
-                            </para></listitem>
-                        <listitem><para>The IPK deploy folder is not modified with
-                            <filename>${MLPREFIX}</filename> because packages with and without
-                            the Multilib feature can exist in the same folder due to the
-                            <filename>${PN}</filename> differences.</para></listitem>
-                        <listitem><para>IPK defines a sanity check for Multilib installation
-                            using certain rules for file comparison, overridden, etc.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-        </section>
-
-        <section id='installing-multiple-versions-of-the-same-library'>
-            <title>Installing Multiple Versions of the Same Library</title>
-
-            <para>
-                Situations can exist where you need to install and use
-                multiple versions of the same library on the same system
-                at the same time.
-                These situations almost always exist when a library API
-                changes and you have multiple pieces of software that
-                depend on the separate versions of the library.
-                To accommodate these situations, you can install multiple
-                versions of the same library in parallel on the same system.
-            </para>
-
-            <para>
-                The process is straightforward as long as the libraries use
-                proper versioning.
-                With properly versioned libraries, all you need to do to
-                individually specify the libraries is create separate,
-                appropriately named recipes where the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink> part of the
-                name includes a portion that differentiates each library version
-                (e.g.the major part of the version number).
-                Thus, instead of having a single recipe that loads one version
-                of a library (e.g. <filename>clutter</filename>), you provide
-                multiple recipes that result in different versions
-                of the libraries you want.
-                As an example, the following two recipes would allow the
-                two separate versions of the <filename>clutter</filename>
-                library to co-exist on the same system:
-                <literallayout class='monospaced'>
-     clutter-1.6_1.6.20.bb
-     clutter-1.8_1.8.4.bb
-                </literallayout>
-                Additionally, if you have other recipes that depend on a given
-                library, you need to use the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPENDS'><filename>DEPENDS</filename></ulink>
-                variable to create the dependency.
-                Continuing with the same example, if you want to have a recipe
-                depend on the 1.8 version of the <filename>clutter</filename>
-                library, use the following in your recipe:
-                <literallayout class='monospaced'>
-     DEPENDS = "clutter-1.8"
-                </literallayout>
-            </para>
-        </section>
-    </section>
-
-    <section id='using-x32-psabi'>
-        <title>Using x32 psABI</title>
-
-        <para>
-            x32 processor-specific Application Binary Interface
-            (<ulink url='https://software.intel.com/en-us/node/628948'>x32 psABI</ulink>)
-            is a native 32-bit processor-specific ABI for
-            <trademark class='registered'>Intel</trademark> 64 (x86-64)
-            architectures.
-            An ABI defines the calling conventions between functions in a
-            processing environment.
-            The interface determines what registers are used and what the
-            sizes are for various C data types.
-        </para>
-
-        <para>
-            Some processing environments prefer using 32-bit applications even
-            when running on Intel 64-bit platforms.
-            Consider the i386 psABI, which is a very old 32-bit ABI for Intel
-            64-bit platforms.
-            The i386 psABI does not provide efficient use and access of the
-            Intel 64-bit processor resources, leaving the system underutilized.
-            Now consider the x86_64 psABI.
-            This ABI is newer and uses 64-bits for data sizes and program
-            pointers.
-            The extra bits increase the footprint size of the programs,
-            libraries, and also increases the memory and file system size
-            requirements.
-            Executing under the x32 psABI enables user programs to utilize CPU
-            and system resources more efficiently while keeping the memory
-            footprint of the applications low.
-            Extra bits are used for registers but not for addressing mechanisms.
-        </para>
-
-        <para>
-            The Yocto Project supports the final specifications of x32 psABI
-            as follows:
-            <itemizedlist>
-                <listitem><para>
-                    You can create packages and images in x32 psABI format on
-                    x86_64 architecture targets.
-                    </para></listitem>
-                <listitem><para>
-                    You can successfully build recipes with the x32 toolchain.
-                    </para></listitem>
-                <listitem><para>
-                    You can create and boot
-                    <filename>core-image-minimal</filename> and
-                    <filename>core-image-sato</filename> images.
-                    </para></listitem>
-                <listitem><para>
-                    RPM Package Manager (RPM) support exists for x32 binaries.
-                    </para></listitem>
-                <listitem><para>
-                    Support for large images exists.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            To use the x32 psABI, you need to edit your
-            <filename>conf/local.conf</filename> configuration file as
-            follows:
-            <literallayout class='monospaced'>
-     MACHINE = "qemux86-64"
-     DEFAULTTUNE = "x86-64-x32"
-     baselib = "${@d.getVar('BASE_LIB_tune-' + (d.getVar('DEFAULTTUNE') \
-        or 'INVALID')) or 'lib'}"
-            </literallayout>
-            Once you have set up your configuration file, use BitBake to
-            build an image that supports the x32 psABI.
-            Here is an example:
-            <literallayout class='monospaced'>
-     $ bitbake core-image-sato
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='enabling-gobject-introspection-support'>
-        <title>Enabling GObject Introspection Support</title>
-
-        <para>
-            <ulink url='https://wiki.gnome.org/Projects/GObjectIntrospection'>GObject introspection</ulink>
-            is the standard mechanism for accessing GObject-based software
-            from runtime environments.
-            GObject is a feature of the GLib library that provides an object
-            framework for the GNOME desktop and related software.
-            GObject Introspection adds information to GObject that allows
-            objects created within it to be represented across different
-            programming languages.
-            If you want to construct GStreamer pipelines using Python, or
-            control UPnP infrastructure using Javascript and GUPnP,
-            GObject introspection is the only way to do it.
-        </para>
-
-        <para>
-            This section describes the Yocto Project support for generating
-            and packaging GObject introspection data.
-            GObject introspection data is a description of the
-            API provided by libraries built on top of GLib framework,
-            and, in particular, that framework's GObject mechanism.
-            GObject Introspection Repository (GIR) files go to
-            <filename>-dev</filename> packages,
-            <filename>typelib</filename> files go to main packages as they
-            are packaged together with libraries that are introspected.
-        </para>
-
-        <para>
-            The data is generated when building such a library, by linking
-            the library with a small executable binary that asks the library
-            to describe itself, and then executing the binary and
-            processing its output.
-        </para>
-
-        <para>
-            Generating this data in a cross-compilation environment
-            is difficult because the library is produced for the target
-            architecture, but its code needs to be executed on the build host.
-            This problem is solved with the OpenEmbedded build system by
-            running the code through QEMU, which allows precisely that.
-            Unfortunately, QEMU does not always work perfectly as mentioned
-            in the
-            "<link linkend='known-issues'>Known Issues</link>" section.
-        </para>
-
-        <section id='enabling-the-generation-of-introspection-data'>
-            <title>Enabling the Generation of Introspection Data</title>
-
-            <para>
-                Enabling the generation of introspection data (GIR files)
-                in your library package involves the following:
-                <orderedlist>
-                    <listitem><para>
-                        Inherit the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-gobject-introspection'><filename>gobject-introspection</filename></ulink>
-                        class.
-                        </para></listitem>
-                    <listitem><para>
-                        Make sure introspection is not disabled anywhere in
-                        the recipe or from anything the recipe includes.
-                        Also, make sure that "gobject-introspection-data" is
-                        not in
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO_FEATURES_BACKFILL_CONSIDERED'><filename>DISTRO_FEATURES_BACKFILL_CONSIDERED</filename></ulink>
-                        and that "qemu-usermode" is not in
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_FEATURES_BACKFILL_CONSIDERED'><filename>MACHINE_FEATURES_BACKFILL_CONSIDERED</filename></ulink>.
-                        If either of these conditions exist, nothing will
-                        happen.
-                        </para></listitem>
-                    <listitem><para>
-                        Try to build the recipe.
-                        If you encounter build errors that look like
-                        something is unable to find
-                        <filename>.so</filename> libraries, check where these
-                        libraries are located in the source tree and add
-                        the following to the recipe:
-                        <literallayout class='monospaced'>
-     GIR_EXTRA_LIBS_PATH = "${B}/<replaceable>something</replaceable>/.libs"
-                        </literallayout>
-                        <note>
-                            See recipes in the <filename>oe-core</filename>
-                            repository that use that
-                            <filename>GIR_EXTRA_LIBS_PATH</filename> variable
-                            as an example.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        Look for any other errors, which probably mean that
-                        introspection support in a package is not entirely
-                        standard, and thus breaks down in a cross-compilation
-                        environment.
-                        For such cases, custom-made fixes are needed.
-                        A good place to ask and receive help in these cases
-                        is the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#resources-mailinglist'>Yocto Project mailing lists</ulink>.
-                        </para></listitem>
-                </orderedlist>
-                <note>
-                    Using a library that no longer builds against the latest
-                    Yocto Project release and prints introspection related
-                    errors is a good candidate for the previous procedure.
-                </note>
-            </para>
-        </section>
-
-        <section id='disabling-the-generation-of-introspection-data'>
-            <title>Disabling the Generation of Introspection Data</title>
-
-            <para>
-                You might find that you do not want to generate
-                introspection data.
-                Or, perhaps QEMU does not work on your build host and
-                target architecture combination.
-                If so, you can use either of the following methods to
-                disable GIR file generations:
-                <itemizedlist>
-                    <listitem><para>
-                        Add the following to your distro configuration:
-                        <literallayout class='monospaced'>
-     DISTRO_FEATURES_BACKFILL_CONSIDERED = "gobject-introspection-data"
-                        </literallayout>
-                        Adding this statement disables generating
-                        introspection data using QEMU but will still enable
-                        building introspection tools and libraries
-                        (i.e. building them does not require the use of QEMU).
-                        </para></listitem>
-                    <listitem><para>
-                        Add the following to your machine configuration:
-                        <literallayout class='monospaced'>
-     MACHINE_FEATURES_BACKFILL_CONSIDERED = "qemu-usermode"
-                        </literallayout>
-                        Adding this statement disables the use of QEMU
-                        when building packages for your machine.
-                        Currently, this feature is used only by introspection
-                        recipes and has the same effect as the previously
-                        described option.
-                        <note>
-                            Future releases of the Yocto Project might have
-                            other features affected by this option.
-                        </note>
-                        </para></listitem>
-                </itemizedlist>
-                If you disable introspection data, you can still
-                obtain it through other means such as copying the data
-                from a suitable sysroot, or by generating it on the
-                target hardware.
-                The OpenEmbedded build system does not currently
-                provide specific support for these techniques.
-            </para>
-        </section>
-
-        <section id='testing-that-introspection-works-in-an-image'>
-            <title>Testing that Introspection Works in an Image</title>
-
-            <para>
-                Use the following procedure to test if generating
-                introspection data is working in an image:
-                <orderedlist>
-                    <listitem><para>
-                        Make sure that "gobject-introspection-data" is not in
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO_FEATURES_BACKFILL_CONSIDERED'><filename>DISTRO_FEATURES_BACKFILL_CONSIDERED</filename></ulink>
-                        and that "qemu-usermode" is not in
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_FEATURES_BACKFILL_CONSIDERED'><filename>MACHINE_FEATURES_BACKFILL_CONSIDERED</filename></ulink>.
-                        </para></listitem>
-                    <listitem><para>
-                        Build <filename>core-image-sato</filename>.
-                        </para></listitem>
-                    <listitem><para>
-                        Launch a Terminal and then start Python in the
-                        terminal.
-                        </para></listitem>
-                    <listitem><para>
-                        Enter the following in the terminal:
-                        <literallayout class='monospaced'>
-     >>> from gi.repository import GLib
-     >>> GLib.get_host_name()
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        For something a little more advanced, enter the
-                        following:
-                        <literallayout class='monospaced'>
-     http://python-gtk-3-tutorial.readthedocs.org/en/latest/introduction.html
-                        </literallayout>
-                        </para></listitem>
-                </orderedlist>
-            </para>
-        </section>
-
-        <section id='known-issues'>
-            <title>Known Issues</title>
-
-            <para>
-                The following know issues exist for
-                GObject Introspection Support:
-                <itemizedlist>
-                    <listitem><para>
-                        <filename>qemu-ppc64</filename> immediately crashes.
-                        Consequently, you cannot build introspection data on
-                        that architecture.
-                        </para></listitem>
-                    <listitem><para>
-                        x32 is not supported by QEMU.
-                        Consequently, introspection data is disabled.
-                        </para></listitem>
-                    <listitem><para>
-                        musl causes transient GLib binaries to crash on
-                        assertion failures.
-                        Consequently, generating introspection data is
-                        disabled.
-                        </para></listitem>
-                    <listitem><para>
-                        Because QEMU is not able to run the binaries correctly,
-                        introspection is disabled for some specific packages
-                        under specific architectures (e.g.
-                        <filename>gcr</filename>,
-                        <filename>libsecret</filename>, and
-                        <filename>webkit</filename>).
-                        </para></listitem>
-                    <listitem><para>
-                        QEMU usermode might not work properly when running
-                        64-bit binaries under 32-bit host machines.
-                        In particular, "qemumips64" is known to not work under
-                        i686.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-    </section>
-
-    <section id='dev-optionally-using-an-external-toolchain'>
-        <title>Optionally Using an External Toolchain</title>
-
-        <para>
-            You might want to use an external toolchain as part of your
-            development.
-            If this is the case, the fundamental steps you need to accomplish
-            are as follows:
-            <itemizedlist>
-                <listitem><para>
-                    Understand where the installed toolchain resides.
-                    For cases where you need to build the external toolchain,
-                    you would need to take separate steps to build and install
-                    the toolchain.
-                    </para></listitem>
-                <listitem><para>
-                    Make sure you add the layer that contains the toolchain to
-                    your <filename>bblayers.conf</filename> file through the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-BBLAYERS'><filename>BBLAYERS</filename></ulink>
-                    variable.
-                    </para></listitem>
-                <listitem><para>
-                    Set the <filename>EXTERNAL_TOOLCHAIN</filename>
-                    variable in your <filename>local.conf</filename> file
-                    to the location in which you installed the toolchain.
-                    </para></listitem>
-            </itemizedlist>
-            A good example of an external toolchain used with the Yocto Project
-            is <trademark class='registered'>Mentor Graphics</trademark>
-            Sourcery G++ Toolchain.
-            You can see information on how to use that particular layer in the
-            <filename>README</filename> file at
-            <ulink url='http://github.com/MentorEmbedded/meta-sourcery/'></ulink>.
-            You can find further information by reading about the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-TCMODE'><filename>TCMODE</filename></ulink>
-            variable in the Yocto Project Reference Manual's variable glossary.
-        </para>
-    </section>
-
-    <section id='creating-partitioned-images-using-wic'>
-        <title>Creating Partitioned Images Using Wic</title>
-
-        <para>
-            Creating an image for a particular hardware target using the
-            OpenEmbedded build system does not necessarily mean you can boot
-            that image as is on your device.
-            Physical devices accept and boot images in various ways depending
-            on the specifics of the device.
-            Usually, information about the hardware can tell you what image
-            format the device requires.
-            Should your device require multiple partitions on an SD card, flash,
-            or an HDD, you can use the OpenEmbedded Image Creator,
-	        Wic, to create the properly partitioned image.
-        </para>
-
-        <para>
-            The <filename>wic</filename> command generates partitioned
-            images from existing OpenEmbedded build artifacts.
-            Image generation is driven by partitioning commands
-            contained in an Openembedded kickstart file
-            (<filename>.wks</filename>) specified either directly on
-            the command line or as one of a selection of canned
-            kickstart files as shown with the
-            <filename>wic list images</filename> command in the
-            "<link linkend='using-a-provided-kickstart-file'>Using an Existing Kickstart File</link>"
-            section.
-            When you apply the command to a given set of build
-            artifacts, the result is an image or set of images that
-            can be directly written onto media and used on a particular
-            system.
-            <note>
-                For a kickstart file reference, see the
-                "<ulink url='&YOCTO_DOCS_REF_URL;#ref-kickstart'>OpenEmbedded Kickstart (<filename>.wks</filename>) Reference</ulink>"
-                Chapter in the Yocto Project Reference Manual.
-            </note>
-        </para>
-
-        <para>
-            The <filename>wic</filename> command and the infrastructure
-            it is based on is by definition incomplete.
-            The purpose of the command is to allow the generation of
-            customized images, and as such, was designed to be
-            completely extensible through a plugin interface.
-            See the
-            "<link linkend='wic-using-the-wic-plugin-interface'>Using the Wic PlugIn Interface</link>"
-            section for information on these plugins.
-        </para>
-
-        <para>
-            This section provides some background information on Wic,
-            describes what you need to have in
-            place to run the tool, provides instruction on how to use
-            the Wic utility, provides information on using the Wic plugins
-            interface, and provides several examples that show how to use
-            Wic.
-        </para>
-
-        <section id='wic-background'>
-            <title>Background</title>
-
-            <para>
-                This section provides some background on the Wic utility.
-                While none of this information is required to use
-                Wic, you might find it interesting.
-                <itemizedlist>
-                    <listitem><para>
-                        The name "Wic" is derived from OpenEmbedded
-                        Image Creator (oeic).
-                        The "oe" diphthong in "oeic" was promoted to the
-                        letter "w", because "oeic" is both difficult to
-                        remember and to pronounce.
-                        </para></listitem>
-                    <listitem><para>
-                        Wic is loosely based on the
-                        Meego Image Creator (<filename>mic</filename>)
-                        framework.
-                        The Wic implementation has been
-                        heavily modified to make direct use of OpenEmbedded
-                        build artifacts instead of package installation and
-                        configuration, which are already incorporated within
-                        the OpenEmbedded artifacts.
-                        </para></listitem>
-                    <listitem><para>
-                        Wic is a completely independent
-                        standalone utility that initially provides
-                        easier-to-use and more flexible replacements for an
-                        existing functionality in OE-Core's
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-image-live'><filename>image-live</filename></ulink>
-                        class.
-                        The difference between Wic and those examples is
-                        that with Wic the functionality of those scripts is
-                        implemented by a general-purpose partitioning language,
-                        which is based on Redhat kickstart syntax.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='wic-requirements'>
-            <title>Requirements</title>
-
-            <para>
-                In order to use the Wic utility with the OpenEmbedded Build
-                system, your system needs to meet the following
-                requirements:
-                <itemizedlist>
-                    <listitem><para>
-                        The Linux distribution on your development host must
-                        support the Yocto Project.
-                        See the
-                        "<ulink url='&YOCTO_DOCS_REF_URL;#detailed-supported-distros'>Supported Linux Distributions</ulink>"
-                        section in the Yocto Project Reference Manual for
-                        the list of distributions that support the
-                        Yocto Project.
-                        </para></listitem>
-                    <listitem><para>
-                        The standard system utilities, such as
-                        <filename>cp</filename>, must be installed on your
-                        development host system.
-                        </para></listitem>
-                    <listitem><para>
-                        You must have sourced the build environment
-                        setup script (i.e.
-                        <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>)
-                        found in the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                        </para></listitem>
-                    <listitem><para>
-                        You need to have the build artifacts already
-                        available, which typically means that you must
-                        have already created an image using the
-                        Openembedded build system (e.g.
-                        <filename>core-image-minimal</filename>).
-                        While it might seem redundant to generate an image
-                        in order to create an image using
-                        Wic, the current version of
-                        Wic requires the artifacts
-                        in the form generated by the OpenEmbedded build
-                        system.
-                        </para></listitem>
-                    <listitem><para>
-                        You must build several native tools, which are
-                        built to run on the build system:
-                        <literallayout class='monospaced'>
-     $ bitbake parted-native dosfstools-native mtools-native
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        Include "wic" as part of the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></ulink>
-                        variable.
-                        </para></listitem>
-                    <listitem><para>
-                        Include the name of the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#openembedded-kickstart-wks-reference'>wic kickstart file</ulink>
-                        as part of the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-WKS_FILE'><filename>WKS_FILE</filename></ulink>
-                        variable
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='wic-getting-help'>
-            <title>Getting Help</title>
-
-            <para>
-                You can get general help for the <filename>wic</filename>
-                command by entering the <filename>wic</filename> command
-                by itself or by entering the command with a help argument
-                as follows:
-                <literallayout class='monospaced'>
-     $ wic -h
-     $ wic --help
-     $ wic help
-                </literallayout>
-            </para>
-
-            <para>
-                Currently, Wic supports seven commands:
-                <filename>cp</filename>, <filename>create</filename>,
-                <filename>help</filename>, <filename>list</filename>,
-                <filename>ls</filename>, <filename>rm</filename>, and
-                <filename>write</filename>.
-                You can get help for all these commands except "help" by
-                using the following form:
-                <literallayout class='monospaced'>
-     $ wic help <replaceable>command</replaceable>
-                </literallayout>
-                For example, the following command returns help for the
-                <filename>write</filename> command:
-                <literallayout class='monospaced'>
-     $ wic help write
-                </literallayout>
-            </para>
-
-            <para>
-                Wic supports help for three topics:
-                <filename>overview</filename>,
-                <filename>plugins</filename>, and
-                <filename>kickstart</filename>.
-                You can get help for any topic using the following form:
-                <literallayout class='monospaced'>
-     $ wic help <replaceable>topic</replaceable>
-                </literallayout>
-                For example, the following returns overview help for Wic:
-                <literallayout class='monospaced'>
-     $ wic help overview
-                </literallayout>
-            </para>
-
-            <para>
-                One additional level of help exists for Wic.
-                You can get help on individual images through the
-                <filename>list</filename> command.
-                You can use the <filename>list</filename> command to return the
-                available Wic images as follows:
-                <literallayout class='monospaced'>
-     $ wic list images
-       genericx86                    		Create an EFI disk image for genericx86*
-       beaglebone-yocto              		Create SD card image for Beaglebone
-       edgerouter                    		Create SD card image for Edgerouter
-       qemux86-directdisk            		Create a qemu machine 'pcbios' direct disk image
-       directdisk-gpt                		Create a 'pcbios' direct disk image
-       mkefidisk                     		Create an EFI disk image
-       directdisk                    		Create a 'pcbios' direct disk image
-       systemd-bootdisk              		Create an EFI disk image with systemd-boot
-       mkhybridiso                   		Create a hybrid ISO image
-       sdimage-bootpart              		Create SD card image with a boot partition
-       directdisk-multi-rootfs       		Create multi rootfs image using rootfs plugin
-       directdisk-bootloader-config  		Create a 'pcbios' direct disk image with custom bootloader config
-                </literallayout>
-                Once you know the list of available Wic images, you can use
-                <filename>help</filename> with the command to get help on a
-                particular image.
-                For example, the following command returns help on the
-                "beaglebone-yocto" image:
-                <literallayout class='monospaced'>
-     $ wic list beaglebone-yocto help
-
-
-     Creates a partitioned SD card image for Beaglebone.
-     Boot files are located in the first vfat partition.
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='operational-modes'>
-            <title>Operational Modes</title>
-
-            <para>
-                You can use Wic in two different
-                modes, depending on how much control you need for
-                specifying the Openembedded build artifacts that are
-                used for creating the image: Raw and Cooked:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>Raw Mode:</emphasis>
-                        You explicitly specify build artifacts through
-                        Wic command-line arguments.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Cooked Mode:</emphasis>
-                        The current
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
-                        setting and image name are used to automatically
-                        locate and provide the build artifacts.
-                        You just supply a kickstart file and the name
-                        of the image from which to use artifacts.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                Regardless of the mode you use, you need to have the build
-                artifacts ready and available.
-            </para>
-
-            <section id='raw-mode'>
-                <title>Raw Mode</title>
-
-                <para>
-                    Running Wic in raw mode allows you to specify all the
-                    partitions through the <filename>wic</filename>
-                    command line.
-                    The primary use for raw mode is if you have built
-                    your kernel outside of the Yocto Project
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                    In other words, you can point to arbitrary kernel,
-                    root filesystem locations, and so forth.
-                    Contrast this behavior with cooked mode where Wic
-                    looks in the Build Directory (e.g.
-                    <filename>tmp/deploy/images/</filename><replaceable>machine</replaceable>).
-                </para>
-
-                <para>
-                    The general form of the
-                    <filename>wic</filename> command in raw mode is:
-                    <literallayout class='monospaced'>
-     $ wic create <replaceable>wks_file</replaceable> <replaceable>options</replaceable> ...
-
-       Where:
-
-          <replaceable>wks_file</replaceable>:
-             An OpenEmbedded kickstart file.  You can provide
-             your own custom file or use a file from a set of
-             existing files as described by further options.
-
-          optional arguments:
-            -h, --help            show this help message and exit
-            -o <replaceable>OUTDIR</replaceable>, --outdir <replaceable>OUTDIR</replaceable>
-                                  name of directory to create image in
-            -e <replaceable>IMAGE_NAME</replaceable>, --image-name <replaceable>IMAGE_NAME</replaceable>
-                                  name of the image to use the artifacts from e.g. core-
-                                  image-sato
-            -r <replaceable>ROOTFS_DIR</replaceable>, --rootfs-dir <replaceable>ROOTFS_DIR</replaceable>
-                                  path to the /rootfs dir to use as the .wks rootfs
-                                  source
-            -b <replaceable>BOOTIMG_DIR</replaceable>, --bootimg-dir <replaceable>BOOTIMG_DIR</replaceable>
-                                  path to the dir containing the boot artifacts (e.g.
-                                  /EFI or /syslinux dirs) to use as the .wks bootimg
-                                  source
-            -k <replaceable>KERNEL_DIR</replaceable>, --kernel-dir <replaceable>KERNEL_DIR</replaceable>
-                                  path to the dir containing the kernel to use in the
-                                  .wks bootimg
-            -n <replaceable>NATIVE_SYSROOT</replaceable>, --native-sysroot <replaceable>NATIVE_SYSROOT</replaceable>
-                                  path to the native sysroot containing the tools to use
-                                  to build the image
-            -s, --skip-build-check
-                                  skip the build check
-            -f, --build-rootfs    build rootfs
-            -c {gzip,bzip2,xz}, --compress-with {gzip,bzip2,xz}
-                                  compress image with specified compressor
-            -m, --bmap            generate .bmap
-            --no-fstab-update     Do not change fstab file.
-            -v <replaceable>VARS_DIR</replaceable>, --vars <replaceable>VARS_DIR</replaceable>
-                                  directory with &lt;image&gt;.env files that store bitbake
-                                  variables
-            -D, --debug           output debug information
-                    </literallayout>
-                    <note>
-                        You do not need root privileges to run
-                        Wic.
-                        In fact, you should not run as root when using the
-                        utility.
-                    </note>
-                </para>
-            </section>
-
-            <section id='cooked-mode'>
-                <title>Cooked Mode</title>
-
-                <para>
-                    Running Wic in cooked mode leverages off artifacts in
-                    the Build Directory.
-                    In other words, you do not have to specify kernel or
-                    root filesystem locations as part of the command.
-                    All you need to provide is a kickstart file and the
-                    name of the image from which to use artifacts by using
-                    the "-e" option.
-                    Wic looks in the Build Directory (e.g.
-                    <filename>tmp/deploy/images/</filename><replaceable>machine</replaceable>)
-                    for artifacts.
-                </para>
-
-                <para>
-                    The general form of the <filename>wic</filename>
-                    command using Cooked Mode is as follows:
-                    <literallayout class='monospaced'>
-     $ wic create <replaceable>wks_file</replaceable> -e <replaceable>IMAGE_NAME</replaceable>
-
-       Where:
-
-          <replaceable>wks_file</replaceable>:
-             An OpenEmbedded kickstart file.  You can provide
-             your own custom file or use a file from a set of
-             existing files provided with the Yocto Project
-             release.
-
-          required argument:
-             -e <replaceable>IMAGE_NAME</replaceable>, --image-name <replaceable>IMAGE_NAME</replaceable>
-                                  name of the image to use the artifacts from e.g. core-
-                                  image-sato
-                    </literallayout>
-                </para>
-            </section>
-        </section>
-
-        <section id='using-a-provided-kickstart-file'>
-            <title>Using an Existing Kickstart File</title>
-
-            <para>
-                If you do not want to create your own kickstart file, you
-                can use an existing file provided by the Wic installation.
-                As shipped, kickstart files can be found in the
-                Yocto Project
-                <ulink url='&YOCTO_DOCS_OM_URL;#source-repositories'>Source Repositories</ulink>
-                in the following two locations:
-                <literallayout class='monospaced'>
-     poky/meta-yocto-bsp/wic
-     poky/scripts/lib/wic/canned-wks
-                </literallayout>
-                Use the following command to list the available kickstart
-                files:
-                <literallayout class='monospaced'>
-     $ wic list images
-       genericx86                    		Create an EFI disk image for genericx86*
-       beaglebone-yocto              		Create SD card image for Beaglebone
-       edgerouter                    		Create SD card image for Edgerouter
-       qemux86-directdisk            		Create a qemu machine 'pcbios' direct disk image
-       directdisk-gpt                		Create a 'pcbios' direct disk image
-       mkefidisk                     		Create an EFI disk image
-       directdisk                    		Create a 'pcbios' direct disk image
-       systemd-bootdisk              		Create an EFI disk image with systemd-boot
-       mkhybridiso                   		Create a hybrid ISO image
-       sdimage-bootpart              		Create SD card image with a boot partition
-       directdisk-multi-rootfs       		Create multi rootfs image using rootfs plugin
-       directdisk-bootloader-config  		Create a 'pcbios' direct disk image with custom bootloader config
-                </literallayout>
-                When you use an existing file, you do not have to use the
-                <filename>.wks</filename> extension.
-                Here is an example in Raw Mode that uses the
-                <filename>directdisk</filename> file:
-                <literallayout class='monospaced'>
-     $ wic create directdisk -r <replaceable>rootfs_dir</replaceable> -b <replaceable>bootimg_dir</replaceable> \
-           -k <replaceable>kernel_dir</replaceable> -n <replaceable>native_sysroot</replaceable>
-                </literallayout>
-            </para>
-
-            <para>
-                Here are the actual partition language commands
-                used in the <filename>genericx86.wks</filename> file to
-                generate an image:
-                <literallayout class='monospaced'>
-     # short-description: Create an EFI disk image for genericx86*
-     # long-description: Creates a partitioned EFI disk image for genericx86* machines
-     part /boot --source bootimg-efi --sourceparams="loader=grub-efi" --ondisk sda --label msdos --active --align 1024
-     part / --source rootfs --ondisk sda --fstype=ext4 --label platform --align 1024 --use-uuid
-     part swap --ondisk sda --size 44 --label swap1 --fstype=swap
-
-     bootloader --ptable gpt --timeout=5 --append="rootfstype=ext4 console=ttyS0,115200 console=tty0"
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='wic-using-the-wic-plugin-interface'>
-            <title>Using the Wic Plugin Interface</title>
-
-            <para>
-                You can extend and specialize Wic functionality by using
-                Wic plugins.
-                This section explains the Wic plugin interface.
-                <note>
-                    Wic plugins consist of "source" and "imager" plugins.
-                    Imager plugins are beyond the scope of this section.
-                </note>
-            </para>
-
-            <para>
-                Source plugins provide a mechanism to customize partition
-                content during the Wic image generation process.
-                You can use source plugins to map values that you specify
-                using <filename>--source</filename> commands in kickstart
-                files (i.e. <filename>*.wks</filename>) to a plugin
-                implementation used to populate a given partition.
-                <note>
-                    If you use plugins that have build-time dependencies
-                    (e.g. native tools, bootloaders, and so forth)
-                    when building a Wic image, you need to specify those
-                    dependencies using the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-WKS_FILE_DEPENDS'><filename>WKS_FILE_DEPENDS</filename></ulink>
-                    variable.
-                </note>
-            </para>
-
-            <para>
-                Source plugins are subclasses defined in plugin files.
-                As shipped, the Yocto Project provides several plugin
-                files.
-                You can see the source plugin files that ship with the
-                Yocto Project
-                <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/scripts/lib/wic/plugins/source'>here</ulink>.
-                Each of these plugin files contains source plugins that
-                are designed to populate a specific Wic image partition.
-            </para>
-
-            <para>
-                Source plugins are subclasses of the
-                <filename>SourcePlugin</filename> class, which is
-                defined in the
-                <filename>poky/scripts/lib/wic/pluginbase.py</filename>
-                file.
-                For example, the <filename>BootimgEFIPlugin</filename>
-                source plugin found in the
-                <filename>bootimg-efi.py</filename> file is a subclass of
-                the <filename>SourcePlugin</filename> class, which is found
-                in the <filename>pluginbase.py</filename> file.
-            </para>
-
-            <para>
-                You can also implement source plugins in a layer outside
-                of the Source Repositories (external layer).
-                To do so, be sure that your plugin files are located in
-                a directory whose path is
-                <filename>scripts/lib/wic/plugins/source/</filename>
-                within your external layer.
-                When the plugin files are located there, the source
-                plugins they contain are made available to Wic.
-            </para>
-
-            <para>
-                When the Wic implementation needs to invoke a
-                partition-specific implementation, it looks for the plugin
-                with the same name as the <filename>--source</filename>
-                parameter used in the kickstart file given to that
-                partition.
-                For example, if the partition is set up using the following
-                command in a kickstart file:
-                <literallayout class='monospaced'>
-     part /boot --source bootimg-pcbios --ondisk sda --label boot --active --align 1024
-                </literallayout>
-                The methods defined as class members of the matching
-                source plugin (i.e. <filename>bootimg-pcbios</filename>)
-                in the <filename>bootimg-pcbios.py</filename> plugin file
-                are used.
-            </para>
-
-            <para>
-                To be more concrete, here is the corresponding plugin
-                definition from the <filename>bootimg-pcbios.py</filename>
-                file for the previous command along with an example
-                method called by the Wic implementation when it needs to
-                prepare a partition using an implementation-specific
-                function:
-                <literallayout class='monospaced'>
-                  .
-                  .
-                  .
-     class BootimgPcbiosPlugin(SourcePlugin):
-         """
-         Create MBR boot partition and install syslinux on it.
-         """
-
-         name = 'bootimg-pcbios'
-                  .
-                  .
-                  .
-         @classmethod
-         def do_prepare_partition(cls, part, source_params, creator, cr_workdir,
-                                  oe_builddir, bootimg_dir, kernel_dir,
-                                  rootfs_dir, native_sysroot):
-             """
-             Called to do the actual content population for a partition i.e. it
-             'prepares' the partition to be incorporated into the image.
-             In this case, prepare content for legacy bios boot partition.
-             """
-                  .
-                  .
-                  .
-                </literallayout>
-                If a subclass (plugin) itself does not implement a
-                particular function, Wic locates and uses the default
-                version in the superclass.
-                It is for this reason that all source plugins are derived
-                from the <filename>SourcePlugin</filename> class.
-            </para>
-
-            <para>
-                The <filename>SourcePlugin</filename> class defined in
-                the <filename>pluginbase.py</filename> file defines
-                a set of methods that source plugins can implement or
-                override.
-                Any plugins (subclass of
-                <filename>SourcePlugin</filename>) that do not implement
-                a particular method inherit the implementation of the
-                method from the <filename>SourcePlugin</filename> class.
-                For more information, see the
-                <filename>SourcePlugin</filename> class in the
-                <filename>pluginbase.py</filename> file for details:
-            </para>
-
-            <para>
-                The following list describes the methods implemented in the
-                <filename>SourcePlugin</filename> class:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis><filename>do_prepare_partition()</filename>:</emphasis>
-                        Called to populate a partition with actual content.
-                        In other words, the method prepares the final
-                        partition image that is incorporated into the
-                        disk image.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>do_configure_partition()</filename>:</emphasis>
-                        Called before
-                        <filename>do_prepare_partition()</filename> to
-                        create custom configuration files for a partition
-                        (e.g. syslinux or grub configuration files).
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>do_install_disk()</filename>:</emphasis>
-                        Called after all partitions have been prepared and
-                        assembled into a disk image.
-                        This method provides a hook to allow finalization
-                        of a disk image (e.g. writing an MBR).
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>do_stage_partition()</filename>:</emphasis>
-                        Special content-staging hook called before
-                        <filename>do_prepare_partition()</filename>.
-                        This method is normally empty.</para>
-
-                        <para>Typically, a partition just uses the passed-in
-                        parameters (e.g. the unmodified value of
-                        <filename>bootimg_dir</filename>).
-                        However, in some cases, things might need to be
-                        more tailored.
-                        As an example, certain files might additionally
-                        need to be taken from
-                        <filename>bootimg_dir + /boot</filename>.
-                        This hook allows those files to be staged in a
-                        customized fashion.
-                        <note>
-                            <filename>get_bitbake_var()</filename>
-                            allows you to access non-standard variables
-                            that you might want to use for this
-                            behavior.
-                        </note>
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                You can extend the source plugin mechanism.
-                To add more hooks, create more source plugin methods
-                within <filename>SourcePlugin</filename> and the
-                corresponding derived subclasses.
-                The code that calls the plugin methods uses the
-                <filename>plugin.get_source_plugin_methods()</filename>
-                function to find the method or methods needed by the call.
-                Retrieval of those methods is accomplished by filling up
-                a dict with keys that contain the method names of interest.
-                On success, these will be filled in with the actual
-                methods.
-                See the Wic implementation for examples and details.
-            </para>
-        </section>
-
-        <section id='wic-usage-examples'>
-            <title>Examples</title>
-
-            <para>
-                This section provides several examples that show how to use
-                the Wic utility.
-                All the examples assume the list of requirements in the
-                "<link linkend='wic-requirements'>Requirements</link>"
-                section have been met.
-                The examples assume the previously generated image is
-                <filename>core-image-minimal</filename>.
-            </para>
-
-            <section id='generate-an-image-using-a-provided-kickstart-file'>
-                <title>Generate an Image using an Existing Kickstart File</title>
-
-                <para>
-                    This example runs in Cooked Mode and uses the
-                    <filename>mkefidisk</filename> kickstart file:
-                    <literallayout class='monospaced'>
-     $ wic create mkefidisk -e core-image-minimal
-     INFO: Building wic-tools...
-               .
-               .
-               .
-     INFO: The new image(s) can be found here:
-       ./mkefidisk-201804191017-sda.direct
-
-     The following build artifacts were used to create the image(s):
-       ROOTFS_DIR:                   /home/stephano/build/master/build/tmp-glibc/work/qemux86-oe-linux/core-image-minimal/1.0-r0/rootfs
-       BOOTIMG_DIR:                  /home/stephano/build/master/build/tmp-glibc/work/qemux86-oe-linux/core-image-minimal/1.0-r0/recipe-sysroot/usr/share
-       KERNEL_DIR:                   /home/stephano/build/master/build/tmp-glibc/deploy/images/qemux86
-       NATIVE_SYSROOT:               /home/stephano/build/master/build/tmp-glibc/work/i586-oe-linux/wic-tools/1.0-r0/recipe-sysroot-native
-
-     INFO: The image(s) were created using OE kickstart file:
-       /home/stephano/build/master/openembedded-core/scripts/lib/wic/canned-wks/mkefidisk.wks
-                    </literallayout>
-                    The previous example shows the easiest way to create
-                    an image by running in cooked mode and supplying
-                    a kickstart file and the "-e" option to point to the
-                    existing build artifacts.
-                    Your <filename>local.conf</filename> file needs to have
-                    the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
-                    variable set to the machine you are using, which is
-                    "qemux86" in this example.
-                </para>
-
-                <para>
-                    Once the image builds, the output provides image
-                    location, artifact use, and kickstart file information.
-                    <note>
-                        You should always verify the details provided in the
-                        output to make sure that the image was indeed
-                        created exactly as expected.
-                    </note>
-                </para>
-
-                <para>
-                    Continuing with the example, you can now write the
-                    image from the Build Directory onto a USB stick, or
-                    whatever media for which you built your image, and boot
-                    from the media.
-                    You can write the image by using
-                    <filename>bmaptool</filename> or
-                    <filename>dd</filename>:
-                    <literallayout class='monospaced'>
-     $ oe-run-native bmaptool copy mkefidisk-201804191017-sda.direct /dev/sd<replaceable>X</replaceable>
-                    </literallayout>
-                    or
-                    <literallayout class='monospaced'>
-     $ sudo dd if=mkefidisk-201804191017-sda.direct of=/dev/sd<replaceable>X</replaceable>
-                    </literallayout>
-                    <note>
-                        For more information on how to use the
-                        <filename>bmaptool</filename> to flash a device
-                        with an image, see the
-                        "<link linkend='flashing-images-using-bmaptool'>Flashing Images Using <filename>bmaptool</filename></link>"
-                        section.
-                    </note>
-                </para>
-            </section>
-
-            <section id='using-a-modified-kickstart-file'>
-                <title>Using a Modified Kickstart File</title>
-
-                <para>
-                    Because partitioned image creation is driven by the
-                    kickstart file, it is easy to affect image creation by
-                    changing the parameters in the file.
-                    This next example demonstrates that through modification
-                    of the <filename>directdisk-gpt</filename> kickstart
-                    file.
-                </para>
-
-                <para>
-                    As mentioned earlier, you can use the command
-                    <filename>wic list images</filename> to show the list
-                    of existing kickstart files.
-                    The directory in which the
-                    <filename>directdisk-gpt.wks</filename> file resides is
-                    <filename>scripts/lib/image/canned-wks/</filename>,
-                    which is located in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                    (e.g. <filename>poky</filename>).
-                    Because available files reside in this directory,
-                    you can create and add your own custom files to the
-                    directory.
-                    Subsequent use of the
-                    <filename>wic list images</filename> command would then
-                    include your kickstart files.
-                </para>
-
-                <para>
-                    In this example, the existing
-                    <filename>directdisk-gpt</filename> file already does
-                    most of what is needed.
-                    However, for the hardware in this example, the image
-                    will need to boot from <filename>sdb</filename> instead
-                    of <filename>sda</filename>, which is what the
-                    <filename>directdisk-gpt</filename> kickstart file
-                    uses.
-                </para>
-
-                <para>
-                    The example begins by making a copy of the
-                    <filename>directdisk-gpt.wks</filename> file in the
-                    <filename>scripts/lib/image/canned-wks</filename>
-                    directory and then by changing the lines that specify
-                    the target disk from which to boot.
-                    <literallayout class='monospaced'>
-     $ cp /home/stephano/poky/scripts/lib/wic/canned-wks/directdisk-gpt.wks \
-          /home/stephano/poky/scripts/lib/wic/canned-wks/directdisksdb-gpt.wks
-                    </literallayout>
-                    Next, the example modifies the
-                    <filename>directdisksdb-gpt.wks</filename> file and
-                    changes all instances of
-                    "<filename>--ondisk sda</filename>" to
-                    "<filename>--ondisk sdb</filename>".
-                    The example changes the following two lines and leaves
-                    the remaining lines untouched:
-                    <literallayout class='monospaced'>
-     part /boot --source bootimg-pcbios --ondisk sdb --label boot --active --align 1024
-     part / --source rootfs --ondisk sdb --fstype=ext4 --label platform --align 1024 --use-uuid
-                    </literallayout>
-                    Once the lines are changed, the example generates the
-                    <filename>directdisksdb-gpt</filename> image.
-                    The command points the process at the
-                    <filename>core-image-minimal</filename> artifacts for
-                    the Next Unit of Computing (nuc)
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
-                    the <filename>local.conf</filename>.
-                    <literallayout class='monospaced'>
-     $ wic create directdisksdb-gpt -e core-image-minimal
-     INFO: Building wic-tools...
-                .
-                .
-                .
-     Initialising tasks: 100% |#######################################| Time: 0:00:01
-     NOTE: Executing SetScene Tasks
-     NOTE: Executing RunQueue Tasks
-     NOTE: Tasks Summary: Attempted 1161 tasks of which 1157 didn't need to be rerun and all succeeded.
-     INFO: Creating image(s)...
-
-     INFO: The new image(s) can be found here:
-       ./directdisksdb-gpt-201710090938-sdb.direct
-
-     The following build artifacts were used to create the image(s):
-       ROOTFS_DIR:                   /home/stephano/build/master/build/tmp-glibc/work/qemux86-oe-linux/core-image-minimal/1.0-r0/rootfs
-       BOOTIMG_DIR:                  /home/stephano/build/master/build/tmp-glibc/work/qemux86-oe-linux/core-image-minimal/1.0-r0/recipe-sysroot/usr/share
-       KERNEL_DIR:                   /home/stephano/build/master/build/tmp-glibc/deploy/images/qemux86
-       NATIVE_SYSROOT:               /home/stephano/build/master/build/tmp-glibc/work/i586-oe-linux/wic-tools/1.0-r0/recipe-sysroot-native
-
-     INFO: The image(s) were created using OE kickstart file:
-       /home/stephano/poky/scripts/lib/wic/canned-wks/directdisksdb-gpt.wks
-                    </literallayout>
-                    Continuing with the example, you can now directly
-                    <filename>dd</filename> the image to a USB stick, or
-                    whatever media for which you built your image,
-                    and boot the resulting media:
-                    <literallayout class='monospaced'>
-     $ sudo dd if=directdisksdb-gpt-201710090938-sdb.direct of=/dev/sdb
-     140966+0 records in
-     140966+0 records out
-     72174592 bytes (72 MB, 69 MiB) copied, 78.0282 s, 925 kB/s
-     $ sudo eject /dev/sdb
-                    </literallayout>
-                </para>
-            </section>
-
-            <section id='using-a-modified-kickstart-file-and-running-in-raw-mode'>
-                <title>Using a Modified Kickstart File and Running in Raw Mode</title>
-
-                <para>
-                    This next example manually specifies each build artifact
-                    (runs in Raw Mode) and uses a modified kickstart file.
-                    The example also uses the <filename>-o</filename> option
-                    to cause Wic to create the output
-                    somewhere other than the default output directory,
-                    which is the current directory:
-                    <literallayout class='monospaced'>
-     $ wic create /home/stephano/my_yocto/test.wks -o /home/stephano/testwic \
-          --rootfs-dir /home/stephano/build/master/build/tmp/work/qemux86-poky-linux/core-image-minimal/1.0-r0/rootfs \
-          --bootimg-dir /home/stephano/build/master/build/tmp/work/qemux86-poky-linux/core-image-minimal/1.0-r0/recipe-sysroot/usr/share \
-          --kernel-dir /home/stephano/build/master/build/tmp/deploy/images/qemux86 \
-          --native-sysroot /home/stephano/build/master/build/tmp/work/i586-poky-linux/wic-tools/1.0-r0/recipe-sysroot-native
-
-     INFO: Creating image(s)...
-
-     INFO: The new image(s) can be found here:
-       /home/stephano/testwic/test-201710091445-sdb.direct
-
-     The following build artifacts were used to create the image(s):
-       ROOTFS_DIR:                   /home/stephano/build/master/build/tmp-glibc/work/qemux86-oe-linux/core-image-minimal/1.0-r0/rootfs
-       BOOTIMG_DIR:                  /home/stephano/build/master/build/tmp-glibc/work/qemux86-oe-linux/core-image-minimal/1.0-r0/recipe-sysroot/usr/share
-       KERNEL_DIR:                   /home/stephano/build/master/build/tmp-glibc/deploy/images/qemux86
-       NATIVE_SYSROOT:               /home/stephano/build/master/build/tmp-glibc/work/i586-oe-linux/wic-tools/1.0-r0/recipe-sysroot-native
-
-     INFO: The image(s) were created using OE kickstart file:
-       /home/stephano/my_yocto/test.wks
-                    </literallayout>
-                    For this example,
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
-                    did not have to be specified in the
-                    <filename>local.conf</filename> file since the
-                    artifact is manually specified.
-                </para>
-            </section>
-
-            <section id='using-wic-to-manipulate-an-image'>
-                <title>Using Wic to Manipulate an Image</title>
-
-                <para>
-                    Wic image manipulation allows you to shorten turnaround
-                    time during image development.
-                    For example, you can use Wic to delete the kernel partition
-                    of a Wic image and then insert a newly built kernel.
-                    This saves you time from having to rebuild the entire image
-                    each time you modify the kernel.
-                    <note>
-                        In order to use Wic to manipulate a Wic image as in
-                        this example, your development machine must have the
-                        <filename>mtools</filename> package installed.
-                    </note>
-                </para>
-
-                <para>
-                    The following example examines the contents of the Wic
-                    image, deletes the existing kernel, and then inserts a
-                    new kernel:
-                    <orderedlist>
-                        <listitem><para>
-                            <emphasis>List the Partitions:</emphasis>
-                            Use the <filename>wic ls</filename> command to list
-                            all the partitions in the Wic image:
-                            <literallayout class='monospaced'>
-     $ wic ls tmp/deploy/images/qemux86/core-image-minimal-qemux86.wic
-     Num     Start        End          Size      Fstype
-      1       1048576     25041919     23993344  fat16
-      2      25165824     72157183     46991360  ext4
-                            </literallayout>
-                            The previous output shows two partitions in the
-                            <filename>core-image-minimal-qemux86.wic</filename>
-                            image.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Examine a Particular Partition:</emphasis>
-                            Use the <filename>wic ls</filename> command again
-                            but in a different form to examine a particular
-                            partition.
-                            <note>
-                                You can get command usage on any Wic command
-                                using the following form:
-                                <literallayout class='monospaced'>
-     $ wic help <replaceable>command</replaceable>
-                                </literallayout>
-                                For example, the following command shows you
-                                the various ways to use the
-                                <filename>wic ls</filename> command:
-                                <literallayout class='monospaced'>
-     $ wic help ls
-                                </literallayout>
-                            </note>
-                            The following command shows what is in Partition
-                            one:
-                            <literallayout class='monospaced'>
-     $ wic ls tmp/deploy/images/qemux86/core-image-minimal-qemux86.wic:1
-     Volume in drive : is boot
-      Volume Serial Number is E894-1809
-     Directory for ::/
-
-     libcom32 c32    186500 2017-10-09  16:06
-     libutil  c32     24148 2017-10-09  16:06
-     syslinux cfg       220 2017-10-09  16:06
-     vesamenu c32     27104 2017-10-09  16:06
-     vmlinuz        6904608 2017-10-09  16:06
-             5 files           7 142 580 bytes
-                              16 582 656 bytes free
-                            </literallayout>
-                            The previous output shows five files, with the
-                            <filename>vmlinuz</filename> being the kernel.
-                            <note>
-                                If you see the following error, you need to
-                                update or create a
-                                <filename>~/.mtoolsrc</filename> file and
-                                be sure to have the line "mtools_skip_check=1"
-                                in the file.
-                                Then, run the Wic command again:
-                                <literallayout class='monospaced'>
-     ERROR: _exec_cmd: /usr/bin/mdir -i /tmp/wic-parttfokuwra ::/ returned '1' instead of 0
-      output: Total number of sectors (47824) not a multiple of sectors per track (32)!
-      Add mtools_skip_check=1 to your .mtoolsrc file to skip this test
-                                </literallayout>
-                             </note>
-                             </para></listitem>
-                         <listitem><para>
-                             <emphasis>Remove the Old Kernel:</emphasis>
-                             Use the <filename>wic rm</filename> command to
-                             remove the <filename>vmlinuz</filename> file
-                             (kernel):
-                             <literallayout class='monospaced'>
-     $ wic rm tmp/deploy/images/qemux86/core-image-minimal-qemux86.wic:1/vmlinuz
-                             </literallayout>
-                             </para></listitem>
-                         <listitem><para>
-                             <emphasis>Add In the New Kernel:</emphasis>
-                             Use the <filename>wic cp</filename> command to
-                             add the updated kernel to the Wic image.
-                             Depending on how you built your kernel, it could
-                             be in different places.
-                             If you used <filename>devtool</filename> and
-                             an SDK to build your kernel, it resides in the
-                             <filename>tmp/work</filename> directory of the
-                             extensible SDK.
-                             If you used <filename>make</filename> to build the
-                             kernel, the kernel will be in the
-                             <filename>workspace/sources</filename> area.
-                             </para>
-
-                             <para>The following example assumes
-                             <filename>devtool</filename> was used to build
-                             the kernel:
-                             <literallayout class='monospaced'>
-     cp ~/poky_sdk/tmp/work/qemux86-poky-linux/linux-yocto/4.12.12+git999-r0/linux-yocto-4.12.12+git999/arch/x86/boot/bzImage \
-        ~/poky/build/tmp/deploy/images/qemux86/core-image-minimal-qemux86.wic:1/vmlinuz
-                             </literallayout>
-                             Once the new kernel is added back into the image,
-                             you can use the <filename>dd</filename>
-                             command or
-                             <link linkend='flashing-images-using-bmaptool'><filename>bmaptool</filename></link>
-                             to flash your wic image onto an SD card
-                             or USB stick and test your target.
-                             <note>
-                                 Using <filename>bmaptool</filename> is
-                                 generally 10 to 20 times faster than using
-                                 <filename>dd</filename>.
-                             </note>
-                             </para></listitem>
-                     </orderedlist>
-                 </para>
-             </section>
-        </section>
-    </section>
-
-    <section id='flashing-images-using-bmaptool'>
-        <title>Flashing Images Using <filename>bmaptool</filename></title>
-
-        <para>
-            A fast and easy way to flash an image to a bootable device
-            is to use Bmaptool, which is integrated into the OpenEmbedded
-            build system.
-            Bmaptool is a generic tool that creates a file's block map (bmap)
-            and then uses that map to copy the file.
-            As compared to traditional tools such as dd or cp, Bmaptool
-            can copy (or flash) large files like raw system image files
-            much faster.
-            <note><title>Notes</title>
-                <itemizedlist>
-                    <listitem><para>
-                        If you are using Ubuntu or Debian distributions, you
-                        can install the <filename>bmap-tools</filename> package
-                        using the following command and then use the tool
-                        without specifying <filename>PATH</filename> even from
-                        the root account:
-                        <literallayout class='monospaced'>
-     $ sudo apt-get install bmap-tools
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        If you are unable to install the
-                        <filename>bmap-tools</filename> package, you will
-                        need to build Bmaptool before using it.
-                        Use the following command:
-                        <literallayout class='monospaced'>
-     $ bitbake bmap-tools-native
-                        </literallayout>
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-        </para>
-
-        <para>
-            Following, is an example that shows how to flash a Wic image.
-            Realize that while this example uses a Wic image, you can use
-            Bmaptool to flash any type of image.
-            Use these steps to flash an image using Bmaptool:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Update your <filename>local.conf</filename> File:</emphasis>
-                    You need to have the following set in your
-                    <filename>local.conf</filename> file before building
-                    your image:
-                    <literallayout class='monospaced'>
-     IMAGE_FSTYPES += "wic wic.bmap"
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Get Your Image:</emphasis>
-                    Either have your image ready (pre-built with the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></ulink>
-                    setting previously mentioned) or take the step to build
-                    the image:
-                    <literallayout class='monospaced'>
-     $ bitbake <replaceable>image</replaceable>
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Flash the Device:</emphasis>
-                    Flash the device with the image by using Bmaptool
-                    depending on your particular setup.
-                    The following commands assume the image resides in the
-                    Build Directory's <filename>deploy/images/</filename>
-                    area:
-                    <itemizedlist>
-                        <listitem><para>
-                            If you have write access to the media, use this
-                            command form:
-                            <literallayout class='monospaced'>
-     $ oe-run-native bmap-tools-native bmaptool copy <replaceable>build-directory</replaceable>/tmp/deploy/images/<replaceable>machine</replaceable>/<replaceable>image</replaceable>.wic /dev/sd<replaceable>X</replaceable>
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            If you do not have write access to the media, set
-                            your permissions first and then use the same
-                            command form:
-                            <literallayout class='monospaced'>
-     $ sudo chmod 666 /dev/sd<replaceable>X</replaceable>
-     $ oe-run-native bmap-tools-native bmaptool copy <replaceable>build-directory</replaceable>/tmp/deploy/images/<replaceable>machine</replaceable>/<replaceable>image</replaceable>.wic /dev/sd<replaceable>X</replaceable>
-                            </literallayout>
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-            </orderedlist>
-        </para>
-
-        <para>
-            For help on the <filename>bmaptool</filename> command, use the
-            following command:
-            <literallayout class='monospaced'>
-     $ bmaptool --help
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='making-images-more-secure'>
-        <title>Making Images More Secure</title>
-
-        <para>
-            Security is of increasing concern for embedded devices.
-            Consider the issues and problems discussed in just this
-            sampling of work found across the Internet:
-            <itemizedlist>
-                <listitem><para><emphasis>
-                    "<ulink url='https://www.schneier.com/blog/archives/2014/01/security_risks_9.html'>Security Risks of Embedded Systems</ulink>"</emphasis>
-                    by Bruce Schneier
-                    </para></listitem>
-                <listitem><para><emphasis>
-                    "<ulink url='http://census2012.sourceforge.net/paper.html'>Internet Census 2012</ulink>"</emphasis>
-                    by Carna Botnet</para></listitem>
-                <listitem><para><emphasis>
-                    "<ulink url='http://elinux.org/images/6/6f/Security-issues.pdf'>Security Issues for Embedded Devices</ulink>"</emphasis>
-                    by Jake Edge
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            When securing your image is of concern, there are steps, tools,
-            and variables that you can consider to help you reach the
-            security goals you need for your particular device.
-            Not all situations are identical when it comes to making an
-            image secure.
-            Consequently, this section provides some guidance and suggestions
-            for consideration when you want to make your image more secure.
-            <note>
-                Because the security requirements and risks are
-                different for every type of device, this section cannot
-                provide a complete reference on securing your custom OS.
-                It is strongly recommended that you also consult other sources
-                of information on embedded Linux system hardening and on
-                security.
-            </note>
-        </para>
-
-        <section id='general-considerations'>
-            <title>General Considerations</title>
-
-            <para>
-                General considerations exist that help you create more
-                secure images.
-                You should consider the following suggestions to help
-                make your device more secure:
-                <itemizedlist>
-                    <listitem><para>
-                        Scan additional code you are adding to the system
-                        (e.g. application code) by using static analysis
-                        tools.
-                        Look for buffer overflows and other potential
-                        security problems.
-                    </para></listitem>
-                    <listitem><para>
-                        Pay particular attention to the security for
-                        any web-based administration interface.
-                        </para>
-                        <para>Web interfaces typically need to perform
-                        administrative functions and tend to need to run with
-                        elevated privileges.
-                        Thus, the consequences resulting from the interface's
-                        security becoming compromised can be serious.
-                        Look for common web vulnerabilities such as
-                        cross-site-scripting (XSS), unvalidated inputs,
-                        and so forth.</para>
-                        <para>As with system passwords, the default credentials
-                        for accessing a web-based interface should not be the
-                        same across all devices.
-                        This is particularly true if the interface is enabled
-                        by default as it can be assumed that many end-users
-                        will not change the credentials.
-                    </para></listitem>
-                    <listitem><para>
-                        Ensure you can update the software on the device to
-                        mitigate vulnerabilities discovered in the future.
-                        This consideration especially applies when your
-                        device is network-enabled.
-                    </para></listitem>
-                    <listitem><para>
-                        Ensure you remove or disable debugging functionality
-                        before producing the final image.
-                        For information on how to do this, see the
-                        "<link linkend='considerations-specific-to-the-openembedded-build-system'>Considerations Specific to the OpenEmbedded Build System</link>"
-                        section.
-                        </para></listitem>
-                    <listitem><para>
-                        Ensure you have no network services listening that
-                        are not needed.
-                    </para></listitem>
-                    <listitem><para>
-                        Remove any software from the image that is not needed.
-                    </para></listitem>
-                    <listitem><para>
-                        Enable hardware support for secure boot functionality
-                        when your device supports this functionality.
-                    </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='security-flags'>
-            <title>Security Flags</title>
-
-            <para>
-                The Yocto Project has security flags that you can enable that
-                help make your build output more secure.
-                The security flags are in the
-                <filename>meta/conf/distro/include/security_flags.inc</filename>
-                file in your
-                <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                (e.g. <filename>poky</filename>).
-                <note>
-                    Depending on the recipe, certain security flags are enabled
-                    and disabled by default.
-                </note>
-            </para>
-
-            <para>
-<!--
-                The GCC/LD flags in <filename>security_flags.inc</filename>
-                enable more secure code generation.
-                By including the <filename>security_flags.inc</filename>
-                file, you enable flags to the compiler and linker that cause
-                them to generate more secure code.
-                <note>
-                    The GCC/LD flags are enabled by default in the
-                    <filename>poky-lsb</filename> distribution.
-                </note>
--->
-                Use the following line in your
-                <filename>local.conf</filename> file or in your custom
-                distribution configuration file to enable the security
-                compiler and linker flags for your build:
-                <literallayout class='monospaced'>
-     require conf/distro/include/security_flags.inc
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='considerations-specific-to-the-openembedded-build-system'>
-            <title>Considerations Specific to the OpenEmbedded Build System</title>
-
-            <para>
-                You can take some steps that are specific to the
-                OpenEmbedded build system to make your images more secure:
-                <itemizedlist>
-                    <listitem><para>
-                        Ensure "debug-tweaks" is not one of your selected
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></ulink>.
-                        When creating a new project, the default is to provide you
-                        with an initial <filename>local.conf</filename> file that
-                        enables this feature using the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_IMAGE_FEATURES'><filename>EXTRA_IMAGE_FEATURES</filename></ulink> variable with the line:
-                <literallayout class='monospaced'>
-     EXTRA_IMAGE_FEATURES = "debug-tweaks"
-                </literallayout>
-                        To disable that feature, simply comment out that line in your
-                        <filename>local.conf</filename> file, or
-                        make sure <filename>IMAGE_FEATURES</filename> does not contain
-                        "debug-tweaks" before producing your final image.
-                        Among other things, leaving this in place sets the
-                        root password as blank, which makes logging in for
-                        debugging or inspection easy during
-                        development but also means anyone can easily log in
-                        during production.
-                        </para></listitem>
-                    <listitem><para>
-                        It is possible to set a root password for the image
-                        and also to set passwords for any extra users you might
-                        add (e.g. administrative or service type users).
-                        When you set up passwords for multiple images or
-                        users, you should not duplicate passwords.
-                        </para>
-                        <para>
-                        To set up passwords, use the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-extrausers'><filename>extrausers</filename></ulink>
-                        class, which is the preferred method.
-                        For an example on how to set up both root and user
-                        passwords, see the
-                        "<ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-extrausers'><filename>extrausers.bbclass</filename></ulink>"
-                        section.
-                        <note>
-                            When adding extra user accounts or setting a
-                            root password, be cautious about setting the
-                            same password on every device.
-                            If you do this, and the password you have set
-                            is exposed, then every device is now potentially
-                            compromised.
-                            If you need this access but want to ensure
-                            security, consider setting a different,
-                            random password for each device.
-                            Typically, you do this as a separate step after
-                            you deploy the image onto the device.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        Consider enabling a Mandatory Access Control (MAC)
-                        framework such as SMACK or SELinux and tuning it
-                        appropriately for your device's usage.
-                        You can find more information in the
-                        <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/meta-selinux/'><filename>meta-selinux</filename></ulink>
-                        layer.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-            </para>
-        </section>
-
-        <section id='tools-for-hardening-your-image'>
-            <title>Tools for Hardening Your Image</title>
-
-            <para>
-                The Yocto Project provides tools for making your image
-                more secure.
-                You can find these tools in the
-                <filename>meta-security</filename> layer of the
-                <ulink url='&YOCTO_GIT_URL;'>Yocto Project Source Repositories</ulink>.
-            </para>
-        </section>
-    </section>
-
-    <section id='creating-your-own-distribution'>
-        <title>Creating Your Own Distribution</title>
-
-        <para>
-            When you build an image using the Yocto Project and
-            do not alter any distribution
-            <ulink url='&YOCTO_DOCS_REF_URL;#metadata'>Metadata</ulink>,
-            you are creating a Poky distribution.
-            If you wish to gain more control over package alternative
-            selections, compile-time options, and other low-level
-            configurations, you can create your own distribution.
-        </para>
-
-        <para>
-            To create your own distribution, the basic steps consist of
-            creating your own distribution layer, creating your own
-            distribution configuration file, and then adding any needed
-            code and Metadata to the layer.
-            The following steps provide some more detail:
-            <itemizedlist>
-                <listitem><para><emphasis>Create a layer for your new distro:</emphasis>
-                    Create your distribution layer so that you can keep your
-                    Metadata and code for the distribution separate.
-                    It is strongly recommended that you create and use your own
-                    layer for configuration and code.
-                    Using your own layer as compared to just placing
-                    configurations in a <filename>local.conf</filename>
-                    configuration file makes it easier to reproduce the same
-                    build configuration when using multiple build machines.
-                    See the
-                    "<link linkend='creating-a-general-layer-using-the-bitbake-layers-script'>Creating a General Layer Using the <filename>bitbake-layers</filename> Script</link>"
-                    section for information on how to quickly set up a layer.
-                    </para></listitem>
-                <listitem><para><emphasis>Create the distribution configuration file:</emphasis>
-                    The distribution configuration file needs to be created in
-                    the <filename>conf/distro</filename> directory of your
-                    layer.
-                    You need to name it using your distribution name
-                    (e.g. <filename>mydistro.conf</filename>).
-                    <note>
-                        The
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO'><filename>DISTRO</filename></ulink>
-                        variable in your
-                        <filename>local.conf</filename> file determines the
-                        name of your distribution.
-                    </note></para>
-                    <para>You can split out parts of your configuration file
-                    into include files and then "require" them from within
-                    your distribution configuration file.
-                    Be sure to place the include files in the
-                    <filename>conf/distro/include</filename> directory of
-                    your layer.
-                    A common example usage of include files would be to
-                    separate out the selection of desired version and revisions
-                    for individual recipes.
-</para>
-                    <para>Your configuration file needs to set the following
-                    required variables:
-                    <literallayout class='monospaced'>
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO_NAME'><filename>DISTRO_NAME</filename></ulink>
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO_VERSION'><filename>DISTRO_VERSION</filename></ulink>
-                    </literallayout>
-                    These following variables are optional and you typically
-                    set them from the distribution configuration file:
-                    <literallayout class='monospaced'>
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></ulink>
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO_EXTRA_RDEPENDS'><filename>DISTRO_EXTRA_RDEPENDS</filename></ulink>
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO_EXTRA_RRECOMMENDS'><filename>DISTRO_EXTRA_RRECOMMENDS</filename></ulink>
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-TCLIBC'><filename>TCLIBC</filename></ulink>
-                    </literallayout>
-                    <tip>
-                        If you want to base your distribution configuration file
-                        on the very basic configuration from OE-Core, you
-                        can use
-                        <filename>conf/distro/defaultsetup.conf</filename> as
-                        a reference and just include variables that differ
-                        as compared to <filename>defaultsetup.conf</filename>.
-                        Alternatively, you can create a distribution
-                        configuration file from scratch using the
-                        <filename>defaultsetup.conf</filename> file
-                        or configuration files from other distributions
-                        such as Poky or Angstrom as references.
-                    </tip></para></listitem>
-                <listitem><para><emphasis>Provide miscellaneous variables:</emphasis>
-                    Be sure to define any other variables for which you want to
-                    create a default or enforce as part of the distribution
-                    configuration.
-                    You can include nearly any variable from the
-                    <filename>local.conf</filename> file.
-                    The variables you use are not limited to the list in the
-                    previous bulleted item.</para></listitem>
-                <listitem><para><emphasis>Point to Your distribution configuration file:</emphasis>
-                    In your <filename>local.conf</filename> file in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>,
-                    set your
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO'><filename>DISTRO</filename></ulink>
-                    variable to point to your distribution's configuration file.
-                    For example, if your distribution's configuration file is
-                    named <filename>mydistro.conf</filename>, then you point
-                    to it as follows:
-                    <literallayout class='monospaced'>
-     DISTRO = "mydistro"
-                    </literallayout></para></listitem>
-                <listitem><para><emphasis>Add more to the layer if necessary:</emphasis>
-                    Use your layer to hold other information needed for the
-                    distribution:
-                    <itemizedlist>
-                        <listitem><para>Add recipes for installing
-                            distro-specific configuration files that are not
-                            already installed by another recipe.
-                            If you have distro-specific configuration files
-                            that are included by an existing recipe, you should
-                            add an append file (<filename>.bbappend</filename>)
-                            for those.
-                            For general information and recommendations
-                            on how to add recipes to your layer, see the
-                            "<link linkend='creating-your-own-layer'>Creating Your Own Layer</link>"
-                            and
-                            "<link linkend='best-practices-to-follow-when-creating-layers'>Following Best Practices When Creating Layers</link>"
-                            sections.</para></listitem>
-                        <listitem><para>Add any image recipes that are specific
-                            to your distribution.</para></listitem>
-                        <listitem><para>Add a <filename>psplash</filename>
-                            append file for a branded splash screen.
-                            For information on append files, see the
-                            "<link linkend='using-bbappend-files'>Using .bbappend Files in Your Layer</link>"
-                            section.</para></listitem>
-                        <listitem><para>Add any other append files to make
-                            custom changes that are specific to individual
-                            recipes.</para></listitem>
-                    </itemizedlist></para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='creating-a-custom-template-configuration-directory'>
-        <title>Creating a Custom Template Configuration Directory</title>
-
-        <para>
-            If you are producing your own customized version
-            of the build system for use by other users, you might
-            want to customize the message shown by the setup script or
-            you might want to change the template configuration files (i.e.
-            <filename>local.conf</filename> and
-            <filename>bblayers.conf</filename>) that are created in
-            a new build directory.
-        </para>
-
-        <para>
-            The OpenEmbedded build system uses the environment variable
-            <filename>TEMPLATECONF</filename> to locate the directory
-            from which it gathers configuration information that ultimately
-            ends up in the
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-            <filename>conf</filename> directory.
-            By default, <filename>TEMPLATECONF</filename> is set as
-            follows in the <filename>poky</filename> repository:
-            <literallayout class='monospaced'>
-     TEMPLATECONF=${TEMPLATECONF:-meta-poky/conf}
-            </literallayout>
-            This is the directory used by the build system to find templates
-            from which to build some key configuration files.
-            If you look at this directory, you will see the
-            <filename>bblayers.conf.sample</filename>,
-            <filename>local.conf.sample</filename>, and
-            <filename>conf-notes.txt</filename> files.
-            The build system uses these files to form the respective
-            <filename>bblayers.conf</filename> file,
-            <filename>local.conf</filename> file, and display the list of
-            BitBake targets when running the setup script.
-        </para>
-
-        <para>
-            To override these default configuration files with
-            configurations you want used within every new
-            Build Directory, simply set the
-            <filename>TEMPLATECONF</filename> variable to your directory.
-            The <filename>TEMPLATECONF</filename> variable is set in the
-            <filename>.templateconf</filename> file, which is in the
-            top-level
-            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-            folder (e.g. <filename>poky</filename>).
-            Edit the <filename>.templateconf</filename> so that it can locate
-            your directory.
-        </para>
-
-        <para>
-            Best practices dictate that you should keep your
-            template configuration directory in your custom distribution layer.
-            For example, suppose you have a layer named
-            <filename>meta-mylayer</filename> located in your home directory
-            and you want your template configuration directory named
-            <filename>myconf</filename>.
-            Changing the <filename>.templateconf</filename> as follows
-            causes the OpenEmbedded build system to look in your directory
-            and base its configuration files on the
-            <filename>*.sample</filename> configuration files it finds.
-            The final configuration files (i.e.
-            <filename>local.conf</filename> and
-            <filename>bblayers.conf</filename> ultimately still end up in
-            your Build Directory, but they are based on your
-            <filename>*.sample</filename> files.
-            <literallayout class='monospaced'>
-     TEMPLATECONF=${TEMPLATECONF:-meta-mylayer/myconf}
-            </literallayout>
-        </para>
-
-        <para>
-            Aside from the <filename>*.sample</filename> configuration files,
-            the <filename>conf-notes.txt</filename> also resides in the
-            default <filename>meta-poky/conf</filename> directory.
-            The script that sets up the build environment
-            (i.e.
-            <ulink url="&YOCTO_DOCS_REF_URL;#structure-core-script"><filename>&OE_INIT_FILE;</filename></ulink>)
-            uses this file to display BitBake targets as part of the script
-            output.
-            Customizing this <filename>conf-notes.txt</filename> file is a
-            good way to make sure your list of custom targets appears
-            as part of the script's output.
-        </para>
-
-        <para>
-            Here is the default list of targets displayed as a result of
-            running either of the setup scripts:
-            <literallayout class='monospaced'>
-     You can now run 'bitbake &lt;target&gt;'
-
-     Common targets are:
-         core-image-minimal
-         core-image-sato
-         meta-toolchain
-         meta-ide-support
-            </literallayout>
-        </para>
-
-        <para>
-            Changing the listed common targets is as easy as editing your
-            version of <filename>conf-notes.txt</filename> in your
-            custom template configuration directory and making sure you
-            have <filename>TEMPLATECONF</filename> set to your directory.
-        </para>
-    </section>
-
-    <section id='dev-saving-memory-during-a-build'>
-        <title>Conserving Disk Space During Builds</title>
-
-        <para>
-            To help conserve disk space during builds, you can add the
-            following statement to your project's
-            <filename>local.conf</filename> configuration file found in the
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>:
-            <literallayout class='monospaced'>
-     INHERIT += "rm_work"
-            </literallayout>
-            Adding this statement deletes the work directory used for building
-            a recipe once the recipe is built.
-            For more information on "rm_work", see the
-            <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-rm-work'><filename>rm_work</filename></ulink>
-            class in the Yocto Project Reference Manual.
-        </para>
-    </section>
-
-    <section id='working-with-packages'>
-        <title>Working with Packages</title>
-
-        <para>
-            This section describes a few tasks that involve packages:
-            <itemizedlist>
-                <listitem><para>
-                    <link linkend='excluding-packages-from-an-image'>Excluding packages from an image</link>
-                    </para></listitem>
-                <listitem><para>
-                    <link linkend='incrementing-a-binary-package-version'>Incrementing a binary package version</link>
-                    </para></listitem>
-                <listitem><para>
-                    <link linkend='handling-optional-module-packaging'>Handling optional module packaging</link>
-                    </para></listitem>
-                <listitem><para>
-                    <link linkend='using-runtime-package-management'>Using runtime package management</link>
-                    </para></listitem>
-                <listitem><para>
-                    <link linkend='generating-and-using-signed-packages'>Generating and using signed packages</link>
-                    </para></listitem>
-                <listitem><para>
-                    <link linkend='testing-packages-with-ptest'>Setting up and running package test (ptest)</link>
-                    </para></listitem>
-                <listitem><para>
-                    <link linkend='creating-node-package-manager-npm-packages'>Creating node package manager (NPM) packages</link>
-                    </para></listitem>
-                <listitem><para>
-                    <link linkend='adding-custom-metadata-to-packages'>Adding custom metadata to packages</link>
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <section id='excluding-packages-from-an-image'>
-            <title>Excluding Packages from an Image</title>
-
-            <para>
-                You might find it necessary to prevent specific packages
-                from being installed into an image.
-                If so, you can use several variables to direct the build
-                system to essentially ignore installing recommended packages
-                or to not install a package at all.
-            </para>
-
-            <para>
-                The following list introduces variables you can use to
-                prevent packages from being installed into your image.
-                Each of these variables only works with IPK and RPM
-                package types.
-                Support for Debian packages does not exist.
-                Also, you can use these variables from your
-                <filename>local.conf</filename> file or attach them to a
-                specific image recipe by using a recipe name override.
-                For more detail on the variables, see the descriptions in the
-                Yocto Project Reference Manual's glossary chapter.
-                <itemizedlist>
-                    <listitem><para><ulink url='&YOCTO_DOCS_REF_URL;#var-BAD_RECOMMENDATIONS'><filename>BAD_RECOMMENDATIONS</filename></ulink>:
-                        Use this variable to specify "recommended-only"
-                        packages that you do not want installed.
-                        </para></listitem>
-                    <listitem><para><ulink url='&YOCTO_DOCS_REF_URL;#var-NO_RECOMMENDATIONS'><filename>NO_RECOMMENDATIONS</filename></ulink>:
-                        Use this variable to prevent all "recommended-only"
-                        packages from being installed.
-                        </para></listitem>
-                    <listitem><para><ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_EXCLUDE'><filename>PACKAGE_EXCLUDE</filename></ulink>:
-                        Use this variable to prevent specific packages from
-                        being installed regardless of whether they are
-                        "recommended-only" or not.
-                        You need to realize that the build process could
-                        fail with an error when you
-                        prevent the installation of a package whose presence
-                        is required by an installed package.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='incrementing-a-binary-package-version'>
-            <title>Incrementing a Package Version</title>
-
-            <para>
-                This section provides some background on how binary package
-                versioning is accomplished and presents some of the services,
-                variables, and terminology involved.
-            </para>
-
-            <para>
-                In order to understand binary package versioning, you need
-                to consider the following:
-                <itemizedlist>
-                    <listitem><para>
-                        Binary Package:  The binary package that is eventually
-                        built and installed into an image.
-                        </para></listitem>
-                    <listitem><para>
-                        Binary Package Version:  The binary package version
-                        is composed of two components - a version and a
-                        revision.
-                        <note>
-                            Technically, a third component, the "epoch" (i.e.
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PE'><filename>PE</filename></ulink>)
-                            is involved but this discussion for the most part
-                            ignores <filename>PE</filename>.
-                        </note>
-                        The version and revision are taken from the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>
-                        and
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PR'><filename>PR</filename></ulink>
-                        variables, respectively.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>PV</filename>:  The recipe version.
-                        <filename>PV</filename> represents the version of the
-                        software being packaged.
-                        Do not confuse <filename>PV</filename> with the
-                        binary package version.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>PR</filename>:  The recipe revision.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SRCPV'><filename>SRCPV</filename></ulink>:
-                        The OpenEmbedded build system uses this string
-                        to help define the value of <filename>PV</filename>
-                        when the source code revision needs to be included
-                        in it.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='https://wiki.yoctoproject.org/wiki/PR_Service'>PR Service</ulink>:
-                        A network-based service that helps automate keeping
-                        package feeds compatible with existing package
-                        manager applications such as RPM, APT, and OPKG.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                Whenever the binary package content changes, the binary package
-                version must change.
-                Changing the binary package version is accomplished by changing
-                or "bumping" the <filename>PR</filename> and/or
-                <filename>PV</filename> values.
-                Increasing these values occurs one of two ways:
-                <itemizedlist>
-                    <listitem><para>Automatically using a Package Revision
-                        Service (PR Service).
-                        </para></listitem>
-                    <listitem><para>Manually incrementing the
-                        <filename>PR</filename> and/or
-                        <filename>PV</filename> variables.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                Given a primary challenge of any build system and its users
-                is how to maintain a package feed that is compatible with
-                existing package manager applications such as RPM, APT, and
-                OPKG, using an automated system is much preferred over a
-                manual system.
-                In either system, the main requirement is that binary package
-                version numbering increases in a linear fashion and that a
-                number of version components exist that support that linear
-                progression.
-                For information on how to ensure package revisioning remains
-                linear, see the
-                "<link linkend='automatically-incrementing-a-binary-package-revision-number'>Automatically Incrementing a Binary Package Revision Number</link>"
-                section.
-            </para>
-
-            <para>
-                The following three sections provide related information on the
-                PR Service, the manual method for "bumping"
-                <filename>PR</filename> and/or <filename>PV</filename>, and
-                on how to ensure binary package revisioning remains linear.
-            </para>
-
-            <section id='working-with-a-pr-service'>
-                <title>Working With a PR Service</title>
-
-                <para>
-                    As mentioned, attempting to maintain revision numbers in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#metadata'>Metadata</ulink>
-                    is error prone, inaccurate, and causes problems for people
-                    submitting recipes.
-                    Conversely, the PR Service automatically generates
-                    increasing numbers, particularly the revision field,
-                    which removes the human element.
-                    <note>
-                        For additional information on using a PR Service, you
-                        can see the
-                        <ulink url='&YOCTO_WIKI_URL;/wiki/PR_Service'>PR Service</ulink>
-                        wiki page.
-                    </note>
-                </para>
-
-                <para>
-                    The Yocto Project uses variables in order of
-                    decreasing priority to facilitate revision numbering (i.e.
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PE'><filename>PE</filename></ulink>,
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>, and
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PR'><filename>PR</filename></ulink>
-                    for epoch, version, and revision, respectively).
-                    The values are highly dependent on the policies and
-                    procedures of a given distribution and package feed.
-                </para>
-
-                <para>
-                    Because the OpenEmbedded build system uses
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#overview-checksums'>signatures</ulink>",
-                    which are unique to a given build, the build system
-                    knows when to rebuild packages.
-                    All the inputs into a given task are represented by a
-                    signature, which can trigger a rebuild when different.
-                    Thus, the build system itself does not rely on the
-                    <filename>PR</filename>, <filename>PV</filename>, and
-                    <filename>PE</filename> numbers to trigger a rebuild.
-                    The signatures, however, can be used to generate
-                    these values.
-                </para>
-
-                <para>
-                    The PR Service works with both
-                    <filename>OEBasic</filename> and
-                    <filename>OEBasicHash</filename> generators.
-                    The value of <filename>PR</filename> bumps when the
-                    checksum changes and the different generator mechanisms
-                    change signatures under different circumstances.
-                </para>
-
-                <para>
-                    As implemented, the build system includes values from
-                    the PR Service into the <filename>PR</filename> field as
-                    an addition using the form "<filename>.x</filename>" so
-                    <filename>r0</filename> becomes <filename>r0.1</filename>,
-                    <filename>r0.2</filename> and so forth.
-                    This scheme allows existing <filename>PR</filename> values
-                    to be used for whatever reasons, which include manual
-                    <filename>PR</filename> bumps, should it be necessary.
-                </para>
-
-                <para>
-                    By default, the PR Service is not enabled or running.
-                    Thus, the packages generated are just "self consistent".
-                    The build system adds and removes packages and
-                    there are no guarantees about upgrade paths but images
-                    will be consistent and correct with the latest changes.
-                </para>
-
-                <para>
-                    The simplest form for a PR Service is for it to exist
-                    for a single host development system that builds the
-                    package feed (building system).
-                    For this scenario, you can enable a local PR Service by
-                    setting
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PRSERV_HOST'><filename>PRSERV_HOST</filename></ulink>
-                    in your <filename>local.conf</filename> file in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>:
-                    <literallayout class='monospaced'>
-     PRSERV_HOST = "localhost:0"
-                    </literallayout>
-                    Once the service is started, packages will automatically
-                    get increasing <filename>PR</filename> values and
-                    BitBake takes care of starting and stopping the server.
-                </para>
-
-                <para>
-                    If you have a more complex setup where multiple host
-                    development systems work against a common, shared package
-                    feed, you have a single PR Service running and it is
-                    connected to each building system.
-                    For this scenario, you need to start the PR Service using
-                    the <filename>bitbake-prserv</filename> command:
-                    <literallayout class='monospaced'>
-     bitbake-prserv --host <replaceable>ip</replaceable> --port <replaceable>port</replaceable> --start
-                    </literallayout>
-                    In addition to hand-starting the service, you need to
-                    update the <filename>local.conf</filename> file of each
-                    building system as described earlier so each system
-                    points to the server and port.
-                </para>
-
-                <para>
-                    It is also recommended you use build history, which adds
-                    some sanity checks to binary package versions, in
-                    conjunction with the server that is running the PR Service.
-                    To enable build history, add the following to each building
-                    system's <filename>local.conf</filename> file:
-                    <literallayout class='monospaced'>
-     # It is recommended to activate "buildhistory" for testing the PR service
-     INHERIT += "buildhistory"
-     BUILDHISTORY_COMMIT = "1"
-                    </literallayout>
-                    For information on build history, see the
-                    "<link linkend='maintaining-build-output-quality'>Maintaining Build Output Quality</link>"
-                    section.
-                </para>
-
-                <note>
-                    <para>
-                        The OpenEmbedded build system does not maintain
-                        <filename>PR</filename> information as part of the
-                        shared state (sstate) packages.
-                        If you maintain an sstate feed, its expected that either
-                        all your building systems that contribute to the sstate
-                         feed use a shared PR Service, or you do not run a PR
-                        Service on any of your building systems.
-                        Having some systems use a PR Service while others do
-                        not leads to obvious problems.
-                    </para>
-
-                    <para>
-                        For more information on shared state, see the
-                        "<ulink url='&YOCTO_DOCS_OM_URL;#shared-state-cache'>Shared State Cache</ulink>"
-                        section in the Yocto Project Overview and Concepts
-                        Manual.
-                    </para>
-                </note>
-            </section>
-
-            <section id='manually-bumping-pr'>
-                <title>Manually Bumping PR</title>
-
-                <para>
-                    The alternative to setting up a PR Service is to manually
-                    "bump" the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PR'><filename>PR</filename></ulink>
-                    variable.
-                </para>
-
-                <para>
-                    If a committed change results in changing the package
-                    output, then the value of the PR variable needs to be
-                    increased (or "bumped") as part of that commit.
-                    For new recipes you should add the <filename>PR</filename>
-                    variable and set its initial value equal to "r0", which is
-                    the default.
-                    Even though the default value is "r0", the practice of
-                    adding it to a new recipe makes it harder to forget to bump
-                    the variable when you make changes to the recipe in future.
-                </para>
-
-                <para>
-                    If you are sharing a common <filename>.inc</filename> file
-                    with multiple recipes, you can also use the
-                    <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-INC_PR'>INC_PR</ulink></filename>
-                    variable to ensure that the recipes sharing the
-                    <filename>.inc</filename> file are rebuilt when the
-                    <filename>.inc</filename> file itself is changed.
-                    The <filename>.inc</filename> file must set
-                    <filename>INC_PR</filename> (initially to "r0"), and all
-                    recipes referring to it should set <filename>PR</filename>
-                    to "${INC_PR}.0" initially, incrementing the last number
-                    when the recipe is changed.
-                    If the <filename>.inc</filename> file is changed then its
-                    <filename>INC_PR</filename> should be incremented.
-                </para>
-
-                <para>
-                    When upgrading the version of a binary package, assuming the
-                    <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PV'>PV</ulink></filename>
-                    changes, the <filename>PR</filename> variable should be
-                    reset to "r0" (or "${INC_PR}.0" if you are using
-                    <filename>INC_PR</filename>).
-                </para>
-
-                <para>
-                    Usually, version increases occur only to binary packages.
-                    However, if for some reason <filename>PV</filename> changes
-                    but does not increase, you can increase the
-                    <filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PE'>PE</ulink></filename>
-                    variable (Package Epoch).
-                    The <filename>PE</filename> variable defaults to "0".
-                </para>
-
-                <para>
-                    Binary package version numbering strives to follow the
-                    <ulink url='http://www.debian.org/doc/debian-policy/ch-controlfields.html'>
-                    Debian Version Field Policy Guidelines</ulink>.
-                    These guidelines define how versions are compared and what
-                    "increasing" a version means.
-                </para>
-            </section>
-
-            <section id='automatically-incrementing-a-binary-package-revision-number'>
-                <title>Automatically Incrementing a Package Version Number</title>
-
-                <para>
-                    When fetching a repository, BitBake uses the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SRCREV'><filename>SRCREV</filename></ulink>
-                    variable to determine the specific source code revision
-                    from which to build.
-                    You set the <filename>SRCREV</filename> variable to
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-AUTOREV'><filename>AUTOREV</filename></ulink>
-                    to cause the OpenEmbedded build system to automatically use the
-                    latest revision of the software:
-                    <literallayout class='monospaced'>
-     SRCREV = "${AUTOREV}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    Furthermore, you need to reference <filename>SRCPV</filename>
-                    in <filename>PV</filename> in order to automatically update
-                    the version whenever the revision of the source code
-                    changes.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     PV = "1.0+git${SRCPV}"
-                    </literallayout>
-                    The OpenEmbedded build system substitutes
-                    <filename>SRCPV</filename> with the following:
-                    <literallayout class='monospaced'>
-     AUTOINC+<replaceable>source_code_revision</replaceable>
-                    </literallayout>
-                    The build system replaces the <filename>AUTOINC</filename> with
-                    a number.
-                    The number used depends on the state of the PR Service:
-                    <itemizedlist>
-                        <listitem><para>
-                            If PR Service is enabled, the build system increments
-                            the number, which is similar to the behavior of
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PR'><filename>PR</filename></ulink>.
-                            This behavior results in linearly increasing package
-                            versions, which is desirable.
-                            Here is an example:
-                            <literallayout class='monospaced'>
-     hello-world-git_0.0+git0+b6558dd387-r0.0_armv7a-neon.ipk
-     hello-world-git_0.0+git1+dd2f5c3565-r0.0_armv7a-neon.ipk
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            If PR Service is not enabled, the build system
-                            replaces the <filename>AUTOINC</filename>
-                            placeholder with zero (i.e. "0").
-                            This results in changing the package version since
-                            the source revision is included.
-                            However, package versions are not increased linearly.
-                            Here is an example:
-                            <literallayout class='monospaced'>
-     hello-world-git_0.0+git0+b6558dd387-r0.0_armv7a-neon.ipk
-     hello-world-git_0.0+git0+dd2f5c3565-r0.0_armv7a-neon.ipk
-                            </literallayout>
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    In summary, the OpenEmbedded build system does not track the
-                    history of binary package versions for this purpose.
-                    <filename>AUTOINC</filename>, in this case, is comparable to
-                    <filename>PR</filename>.
-                    If PR server is not enabled, <filename>AUTOINC</filename>
-                    in the package version is simply replaced by "0".
-                    If PR server is enabled, the build system keeps track of the
-                    package versions and bumps the number when the package
-                    revision changes.
-                </para>
-            </section>
-        </section>
-
-        <section id='handling-optional-module-packaging'>
-            <title>Handling Optional Module Packaging</title>
-
-            <para>
-                Many pieces of software split functionality into optional
-                modules (or plugins) and the plugins that are built
-                might depend on configuration options.
-                To avoid having to duplicate the logic that determines what
-                modules are available in your recipe or to avoid having
-                to package each module by hand, the OpenEmbedded build system
-                provides functionality to handle module packaging dynamically.
-            </para>
-
-            <para>
-                To handle optional module packaging, you need to do two things:
-                <itemizedlist>
-                    <listitem><para>Ensure the module packaging is actually
-                        done.</para></listitem>
-                    <listitem><para>Ensure that any dependencies on optional
-                        modules from other recipes are satisfied by your recipe.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <section id='making-sure-the-packaging-is-done'>
-                <title>Making Sure the Packaging is Done</title>
-
-                <para>
-                    To ensure the module packaging actually gets done, you use
-                    the <filename>do_split_packages</filename> function within
-                    the <filename>populate_packages</filename> Python function
-                    in your recipe.
-                    The <filename>do_split_packages</filename> function
-                    searches for a pattern of files or directories under a
-                    specified path and creates a package for each one it finds
-                    by appending to the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGES'><filename>PACKAGES</filename></ulink>
-                    variable and setting the appropriate values for
-                    <filename>FILES_packagename</filename>,
-                    <filename>RDEPENDS_packagename</filename>,
-                    <filename>DESCRIPTION_packagename</filename>, and so forth.
-                    Here is an example from the <filename>lighttpd</filename>
-                    recipe:
-                    <literallayout class='monospaced'>
-     python populate_packages_prepend () {
-         lighttpd_libdir = d.expand('${libdir}')
-         do_split_packages(d, lighttpd_libdir, '^mod_(.*)\.so$',
-                          'lighttpd-module-%s', 'Lighttpd module for %s',
-                           extra_depends='')
-     }
-                    </literallayout>
-                    The previous example specifies a number of things in the
-                    call to <filename>do_split_packages</filename>.
-                    <itemizedlist>
-                        <listitem><para>A directory within the files installed
-                            by your recipe through <filename>do_install</filename>
-                            in which to search.</para></listitem>
-                        <listitem><para>A regular expression used to match module
-                            files in that directory.
-                            In the example, note the parentheses () that mark
-                            the part of the expression from which the module
-                            name should be derived.</para></listitem>
-                        <listitem><para>A pattern to use for the package names.
-                            </para></listitem>
-                        <listitem><para>A description for each package.
-                            </para></listitem>
-                        <listitem><para>An empty string for
-                            <filename>extra_depends</filename>, which disables
-                            the default dependency on the main
-                            <filename>lighttpd</filename> package.
-                            Thus, if a file in <filename>${libdir}</filename>
-                            called <filename>mod_alias.so</filename> is found,
-                            a package called <filename>lighttpd-module-alias</filename>
-                            is created for it and the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-DESCRIPTION'><filename>DESCRIPTION</filename></ulink>
-                            is set to "Lighttpd module for alias".</para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    Often, packaging modules is as simple as the previous
-                    example.
-                    However, more advanced options exist that you can use
-                    within <filename>do_split_packages</filename> to modify its
-                    behavior.
-                    And, if you need to, you can add more logic by specifying
-                    a hook function that is called for each package.
-                    It is also perfectly acceptable to call
-                    <filename>do_split_packages</filename> multiple times if
-                    you have more than one set of modules to package.
-                </para>
-
-                <para>
-                    For more examples that show how to use
-                    <filename>do_split_packages</filename>, see the
-                    <filename>connman.inc</filename> file in the
-                    <filename>meta/recipes-connectivity/connman/</filename>
-                    directory of the <filename>poky</filename>
-                    <ulink url='&YOCTO_DOCS_OM_URL;#yocto-project-repositories'>source repository</ulink>.
-                    You can also find examples in
-                    <filename>meta/classes/kernel.bbclass</filename>.
-                 </para>
-
-                 <para>
-                     Following is a reference that shows
-                     <filename>do_split_packages</filename> mandatory and
-                     optional arguments:
-                     <literallayout class='monospaced'>
-     Mandatory arguments
-
-     root
-        The path in which to search
-     file_regex
-        Regular expression to match searched files.
-        Use parentheses () to mark the part of this
-        expression that should be used to derive the
-        module name (to be substituted where %s is
-        used in other function arguments as noted below)
-     output_pattern
-        Pattern to use for the package names. Must
-        include %s.
-     description
-        Description to set for each package. Must
-        include %s.
-
-     Optional arguments
-
-     postinst
-        Postinstall script to use for all packages
-        (as a string)
-     recursive
-        True to perform a recursive search - default
-        False
-     hook
-        A hook function to be called for every match.
-        The function will be called with the following
-        arguments (in the order listed):
-
-        f
-           Full path to the file/directory match
-        pkg
-           The package name
-        file_regex
-           As above
-        output_pattern
-           As above
-        modulename
-           The module name derived using file_regex
-
-     extra_depends
-        Extra runtime dependencies (RDEPENDS) to be
-        set for all packages. The default value of None
-        causes a dependency on the main package
-        (${PN}) - if you do not want this, pass empty
-        string '' for this parameter.
-     aux_files_pattern
-        Extra item(s) to be added to FILES for each
-        package. Can be a single string item or a list
-        of strings for multiple items. Must include %s.
-     postrm
-        postrm script to use for all packages (as a
-        string)
-     allow_dirs
-        True to allow directories to be matched -
-        default False
-     prepend
-        If True, prepend created packages to PACKAGES
-        instead of the default False which appends them
-     match_path
-        match file_regex on the whole relative path to
-        the root rather than just the file name
-     aux_files_pattern_verbatim
-        Extra item(s) to be added to FILES for each
-        package, using the actual derived module name
-        rather than converting it to something legal
-        for a package name. Can be a single string item
-        or a list of strings for multiple items. Must
-        include %s.
-     allow_links
-        True to allow symlinks to be matched - default
-        False
-     summary
-        Summary to set for each package. Must include %s;
-        defaults to description if not set.
-                     </literallayout>
-                 </para>
-            </section>
-
-            <section id='satisfying-dependencies'>
-                <title>Satisfying Dependencies</title>
-
-                <para>
-                    The second part for handling optional module packaging
-                    is to ensure that any dependencies on optional modules
-                    from other recipes are satisfied by your recipe.
-                    You can be sure these dependencies are satisfied by
-                    using the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGES_DYNAMIC'><filename>PACKAGES_DYNAMIC</filename></ulink> variable.
-                    Here is an example that continues with the
-                    <filename>lighttpd</filename> recipe shown earlier:
-                    <literallayout class='monospaced'>
-     PACKAGES_DYNAMIC = "lighttpd-module-.*"
-                    </literallayout>
-                    The name specified in the regular expression can of
-                    course be anything.
-                    In this example, it is <filename>lighttpd-module-</filename>
-                    and is specified as the prefix to ensure that any
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-RDEPENDS'><filename>RDEPENDS</filename></ulink>
-                    and <ulink url='&YOCTO_DOCS_REF_URL;#var-RRECOMMENDS'><filename>RRECOMMENDS</filename></ulink>
-                    on a package name starting with the prefix are satisfied
-                    during build time.
-                    If you are using <filename>do_split_packages</filename>
-                    as described in the previous section, the value you put in
-                    <filename>PACKAGES_DYNAMIC</filename> should correspond to
-                    the name pattern specified in the call to
-                    <filename>do_split_packages</filename>.
-                </para>
-            </section>
-        </section>
-
-        <section id='using-runtime-package-management'>
-            <title>Using Runtime Package Management</title>
-
-            <para>
-                During a build, BitBake always transforms a recipe into one or
-                more packages.
-                For example, BitBake takes the <filename>bash</filename> recipe
-                and produces a number of packages (e.g.
-                <filename>bash</filename>, <filename>bash-bashbug</filename>,
-                <filename>bash-completion</filename>,
-                <filename>bash-completion-dbg</filename>,
-                <filename>bash-completion-dev</filename>,
-                <filename>bash-completion-extra</filename>,
-                <filename>bash-dbg</filename>, and so forth).
-                Not all generated packages are included in an image.
-            </para>
-
-            <para>
-                In several situations, you might need to update, add, remove,
-                or query the packages on a target device at runtime
-                (i.e. without having to generate a new image).
-                Examples of such situations include:
-                <itemizedlist>
-                    <listitem><para>
-                        You want to provide in-the-field updates to deployed
-                        devices (e.g. security updates).
-                        </para></listitem>
-                    <listitem><para>
-                        You want to have a fast turn-around development cycle
-                        for one or more applications that run on your device.
-                        </para></listitem>
-                    <listitem><para>
-                        You want to temporarily install the "debug" packages
-                        of various applications on your device so that
-                        debugging can be greatly improved by allowing
-                        access to symbols and source debugging.
-                        </para></listitem>
-                    <listitem><para>
-                        You want to deploy a more minimal package selection of
-                        your device but allow in-the-field updates to add a
-                        larger selection for customization.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                In all these situations, you have something similar to a more
-                traditional Linux distribution in that in-field devices
-                are able to receive pre-compiled packages from a server for
-                installation or update.
-                Being able to install these packages on a running,
-                in-field device is what is termed "runtime package
-                management".
-            </para>
-
-            <para>
-                In order to use runtime package management, you
-                need a host or server machine that serves up the pre-compiled
-                packages plus the required metadata.
-                You also need package manipulation tools on the target.
-                The build machine is a likely candidate to act as the server.
-                However, that machine does not necessarily have to be the
-                package server.
-                The build machine could push its artifacts to another machine
-                that acts as the server (e.g. Internet-facing).
-                In fact, doing so is advantageous for a production
-                environment as getting the packages away from the
-                development system's build directory prevents accidental
-                overwrites.
-            </para>
-
-            <para>
-                A simple build that targets just one device produces
-                more than one package database.
-                In other words, the packages produced by a build are separated
-                out into a couple of different package groupings based on
-                criteria such as the target's CPU architecture, the target
-                board, or the C library used on the target.
-                For example, a build targeting the <filename>qemux86</filename>
-                device produces the following three package databases:
-                <filename>noarch</filename>, <filename>i586</filename>, and
-                <filename>qemux86</filename>.
-                If you wanted your <filename>qemux86</filename> device to be
-                aware of all the packages that were available to it,
-                you would need to point it to each of these databases
-                individually.
-                In a similar way, a traditional Linux distribution usually is
-                configured to be aware of a number of software repositories
-                from which it retrieves packages.
-            </para>
-
-            <para>
-                Using runtime package management is completely optional and
-                not required for a successful build or deployment in any
-                way.
-                But if you want to make use of runtime package management,
-                you need to do a couple things above and beyond the basics.
-                The remainder of this section describes what you need to do.
-            </para>
-
-            <section id='runtime-package-management-build'>
-                <title>Build Considerations</title>
-
-                <para>
-                    This section describes build considerations of which you
-                    need to be aware in order to provide support for runtime
-                    package management.
-                </para>
-
-                <para>
-                    When BitBake generates packages, it needs to know
-                    what format or formats to use.
-                    In your configuration, you use the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></ulink>
-                    variable to specify the format:
-                    <orderedlist>
-                        <listitem><para>
-                            Open the <filename>local.conf</filename> file
-                            inside your
-                            <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                            (e.g. <filename>~/poky/build/conf/local.conf</filename>).
-                            </para></listitem>
-                        <listitem><para>
-                            Select the desired package format as follows:
-                            <literallayout class='monospaced'>
-     PACKAGE_CLASSES ?= "package_<replaceable>packageformat</replaceable>"
-                            </literallayout>
-                            where <replaceable>packageformat</replaceable>
-                            can be "ipk", "rpm", "deb", or "tar" which are the
-                            supported package formats.
-                            <note>
-                                Because the Yocto Project supports four
-                                different package formats, you can set the
-                                variable with more than one argument.
-                                However, the OpenEmbedded build system only
-                                uses the first argument when creating an image
-                                or Software Development Kit (SDK).
-                            </note>
-                            </para></listitem>
-                    </orderedlist>
-                </para>
-
-                <para>
-                    If you would like your image to start off with a basic
-                    package database containing the packages in your current
-                    build as well as to have the relevant tools available on the
-                    target for runtime package management, you can include
-                    "package-management" in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></ulink>
-                    variable.
-                    Including "package-management" in this configuration
-                    variable ensures that when the image is assembled for your
-                    target, the image includes the currently-known package
-                    databases as well as the target-specific tools required
-                    for runtime package management to be performed on the
-                    target.
-                    However, this is not strictly necessary.
-                    You could start your image off without any databases
-                    but only include the required on-target package
-                    tool(s).
-                    As an example, you could include "opkg" in your
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_INSTALL'><filename>IMAGE_INSTALL</filename></ulink>
-                    variable if you are using the IPK package format.
-                    You can then initialize your target's package database(s)
-                    later once your image is up and running.
-                </para>
-
-                <para>
-                    Whenever you perform any sort of build step that can
-                    potentially generate a package or modify   existing
-                    package, it is always a good idea to re-generate the
-                    package index after the build by using the following
-                    command:
-                    <literallayout class='monospaced'>
-    $ bitbake package-index
-                    </literallayout>
-                    It might be tempting to build the package and the
-                    package index at the same time with a command such as
-                    the following:
-                    <literallayout class='monospaced'>
-    $ bitbake <replaceable>some-package</replaceable> package-index
-                    </literallayout>
-                    Do not do this as BitBake does not schedule the package
-                    index for after the completion of the package you are
-                    building.
-                    Consequently, you cannot be sure of the package index
-                    including information for the package you just built.
-                    Thus, be sure to run the package update step separately
-                    after building any packages.
-                </para>
-
-                <para>
-                    You can use the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_FEED_ARCHS'><filename>PACKAGE_FEED_ARCHS</filename></ulink>,
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_FEED_BASE_PATHS'><filename>PACKAGE_FEED_BASE_PATHS</filename></ulink>,
-                    and
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_FEED_URIS'><filename>PACKAGE_FEED_URIS</filename></ulink>
-                    variables to pre-configure target images to use a package
-                    feed.
-                    If you do not define these variables, then manual steps
-                    as described in the subsequent sections are necessary to
-                    configure the target.
-                    You should set these variables before building the image
-                    in order to produce a correctly configured image.
-                </para>
-
-                <para>
-                    When your build is complete, your packages reside in the
-                    <filename>${TMPDIR}/deploy/<replaceable>packageformat</replaceable></filename>
-                    directory.
-                    For example, if
-                    <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-TMPDIR'><filename>TMPDIR</filename></ulink><filename>}</filename>
-                    is <filename>tmp</filename> and your selected package type
-                    is RPM, then your RPM packages are available in
-                    <filename>tmp/deploy/rpm</filename>.
-                </para>
-            </section>
-
-            <section id='runtime-package-management-server'>
-                <title>Host or Server Machine Setup</title>
-
-                <para>
-                    Although other protocols are possible, a server using HTTP
-                    typically serves packages.
-                    If you want to use HTTP, then set up and configure a
-                    web server such as Apache 2, lighttpd, or
-                    SimpleHTTPServer on the machine serving the packages.
-                </para>
-
-                <para>
-                    To keep things simple, this section describes how to set
-                    up a SimpleHTTPServer web server to share package feeds
-                    from the developer's machine.
-                    Although this server might not be the best for a production
-                    environment, the setup is simple and straight forward.
-                    Should you want to use a different server more suited for
-                    production (e.g. Apache 2, Lighttpd, or Nginx), take the
-                    appropriate steps to do so.
-                </para>
-
-                <para>
-                    From within the build directory where you have built an
-                    image based on your packaging choice (i.e. the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></ulink>
-                    setting), simply start the server.
-                    The following example assumes a build directory of
-                    <filename>~/poky/build/tmp/deploy/rpm</filename> and a
-                    <filename>PACKAGE_CLASSES</filename> setting of
-                    "package_rpm":
-                    <literallayout class='monospaced'>
-     $ cd ~/poky/build/tmp/deploy/rpm
-     $ python -m SimpleHTTPServer
-                    </literallayout>
-                </para>
-            </section>
-
-            <section id='runtime-package-management-target'>
-                <title>Target Setup</title>
-
-                <para>
-                    Setting up the target differs depending on the
-                    package management system.
-                    This section provides information for RPM, IPK, and DEB.
-                </para>
-
-                <section id='runtime-package-management-target-rpm'>
-                    <title>Using RPM</title>
-
-                    <para>
-                        The
-                        <ulink url='https://en.wikipedia.org/wiki/DNF_(software)'>Dandified Packaging Tool</ulink>
-                        (DNF) performs runtime package management of RPM
-                        packages.
-                        In order to use DNF for runtime package management,
-                        you must perform an initial setup on the target
-                        machine for cases where the
-                        <filename>PACKAGE_FEED_*</filename> variables were not
-                        set as part of the image that is running on the
-                        target.
-                        This means if you built your image and did not not use
-                        these variables as part of the build and your image is
-                        now running on the target, you need to perform the
-                        steps in this section if you want to use runtime
-                        package management.
-                        <note>
-                            For information on the
-                            <filename>PACKAGE_FEED_*</filename> variables, see
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_FEED_ARCHS'><filename>PACKAGE_FEED_ARCHS</filename></ulink>,
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_FEED_BASE_PATHS'><filename>PACKAGE_FEED_BASE_PATHS</filename></ulink>,
-                            and
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_FEED_URIS'><filename>PACKAGE_FEED_URIS</filename></ulink>
-                            in the Yocto Project Reference Manual variables
-                            glossary.
-                        </note>
-                    </para>
-
-                    <para>
-                        On the target, you must inform DNF that package
-                        databases are available.
-                        You do this by creating a file named
-                        <filename>/etc/yum.repos.d/oe-packages.repo</filename>
-                        and defining the <filename>oe-packages</filename>.
-                    </para>
-
-                    <para>
-                        As an example, assume the target is able to use the
-                        following package databases:
-                        <filename>all</filename>, <filename>i586</filename>,
-                        and <filename>qemux86</filename> from a server named
-                        <filename>my.server</filename>.
-                        The specifics for setting up the web server are up to
-                        you.
-                        The critical requirement is that the URIs in the
-                        target repository configuration point to the
-                        correct remote location for the feeds.
-                        <note><title>Tip</title>
-                            For development purposes, you can point the web
-                            server to the build system's
-                            <filename>deploy</filename> directory.
-                            However, for production use, it is better to copy
-                            the package directories to a location outside of
-                            the build area and use that location.
-                            Doing so avoids situations where the build system
-                            overwrites or changes the
-                            <filename>deploy</filename> directory.
-                        </note>
-                    </para>
-
-                    <para>
-                        When telling DNF where to look for the package
-                        databases, you must declare individual locations
-                        per architecture or a single location used for all
-                        architectures.
-                        You cannot do both:
-                        <itemizedlist>
-                            <listitem><para>
-                                <emphasis>Create an Explicit List of Architectures:</emphasis>
-                                Define individual base URLs to identify where
-                                each package database is located:
-                                <literallayout class='monospaced'>
-     [oe-packages]
-     baseurl=http://my.server/rpm/i586 http://my.server/rpm/qemux86 http://my.server/rpm/all
-                                </literallayout>
-                                This example informs DNF about individual
-                                package databases for all three architectures.
-                                </para></listitem>
-                            <listitem><para>
-                                <emphasis>Create a Single (Full) Package Index:</emphasis>
-                                Define a single base URL that identifies where
-                                a full package database is located:
-                                <literallayout class='monospaced'>
-     [oe-packages]
-     baseurl=http://my.server/rpm
-                                </literallayout>
-                                This example informs DNF about a single package
-                                database that contains all the package index
-                                information for all supported architectures.
-                                </para></listitem>
-                        </itemizedlist>
-                    </para>
-
-                    <para>
-                        Once you have informed DNF where to find the package
-                        databases, you need to fetch them:
-                        <literallayout class='monospaced'>
-     # dnf makecache
-                        </literallayout>
-                        DNF is now able to find, install, and upgrade packages
-                        from the specified repository or repositories.
-                        <note>
-                            See the
-                            <ulink url='http://dnf.readthedocs.io/en/latest/'>DNF documentation</ulink>
-                            for additional information.
-                        </note>
-                    </para>
-                </section>
-
-                <section id='runtime-package-management-target-ipk'>
-                    <title>Using IPK</title>
-
-                    <para>
-                        The <filename>opkg</filename> application performs
-                        runtime package management of IPK packages.
-                        You must perform an initial setup for
-                        <filename>opkg</filename> on the target machine
-                        if the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_FEED_ARCHS'><filename>PACKAGE_FEED_ARCHS</filename></ulink>,
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_FEED_BASE_PATHS'><filename>PACKAGE_FEED_BASE_PATHS</filename></ulink>, and
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_FEED_URIS'><filename>PACKAGE_FEED_URIS</filename></ulink>
-                        variables have not been set or the target image was
-                        built before the variables were set.
-                    </para>
-
-                    <para>
-                        The <filename>opkg</filename> application uses
-                        configuration files to find available package
-                        databases.
-                        Thus, you need to create a configuration file inside
-                        the <filename>/etc/opkg/</filename> direction, which
-                        informs <filename>opkg</filename> of any repository
-                        you want to use.
-                    </para>
-
-                    <para>
-                        As an example, suppose you are serving packages from a
-                        <filename>ipk/</filename> directory containing the
-                        <filename>i586</filename>,
-                        <filename>all</filename>, and
-                        <filename>qemux86</filename> databases through an
-                        HTTP server named <filename>my.server</filename>.
-                        On the target, create a configuration file
-                        (e.g. <filename>my_repo.conf</filename>) inside the
-                        <filename>/etc/opkg/</filename> directory containing
-                        the following:
-                        <literallayout class='monospaced'>
-     src/gz all http://my.server/ipk/all
-     src/gz i586 http://my.server/ipk/i586
-     src/gz qemux86 http://my.server/ipk/qemux86
-                        </literallayout>
-                        Next, instruct <filename>opkg</filename> to fetch
-                        the repository information:
-                        <literallayout class='monospaced'>
-     # opkg update
-                        </literallayout>
-                        The <filename>opkg</filename> application is now able
-                        to find, install, and upgrade packages from the
-                        specified repository.
-                    </para>
-                </section>
-
-                <section id='runtime-package-management-target-deb'>
-                    <title>Using DEB</title>
-
-                    <para>
-                        The <filename>apt</filename> application performs
-                        runtime package management of DEB packages.
-                        This application uses a source list file to find
-                        available package databases.
-                        You must perform an initial setup for
-                        <filename>apt</filename> on the target machine
-                        if the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_FEED_ARCHS'><filename>PACKAGE_FEED_ARCHS</filename></ulink>,
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_FEED_BASE_PATHS'><filename>PACKAGE_FEED_BASE_PATHS</filename></ulink>, and
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_FEED_URIS'><filename>PACKAGE_FEED_URIS</filename></ulink>
-                        variables have not been set or the target image was
-                        built before the variables were set.
-                    </para>
-
-                    <para>
-                        To inform <filename>apt</filename> of the repository
-                        you want to use, you might create a list file (e.g.
-                        <filename>my_repo.list</filename>) inside the
-                        <filename>/etc/apt/sources.list.d/</filename>
-                        directory.
-                        As an example, suppose you are serving packages from a
-                        <filename>deb/</filename> directory containing the
-                        <filename>i586</filename>,
-                        <filename>all</filename>, and
-                        <filename>qemux86</filename> databases through an
-                        HTTP server named <filename>my.server</filename>.
-                        The list file should contain:
-                        <literallayout class='monospaced'>
-     deb http://my.server/deb/all ./
-     deb http://my.server/deb/i586 ./
-     deb http://my.server/deb/qemux86 ./
-                        </literallayout>
-                        Next, instruct the <filename>apt</filename>
-                        application to fetch the repository information:
-                        <literallayout class='monospaced'>
-     # apt-get update
-                        </literallayout>
-                        After this step, <filename>apt</filename> is able
-                        to find, install, and upgrade packages from the
-                        specified repository.
-                    </para>
-                </section>
-            </section>
-        </section>
-
-        <section id='generating-and-using-signed-packages'>
-            <title>Generating and Using Signed Packages</title>
-            <para>
-                In order to add security to RPM packages used during a build,
-                you can take steps to securely sign them.
-                Once a signature is verified, the OpenEmbedded build system
-                can use the package in the build.
-                If security fails for a signed package, the build system
-                aborts the build.
-            </para>
-
-            <para>
-                This section describes how to sign RPM packages during a build
-                and how to use signed package feeds (repositories) when
-                doing a build.
-            </para>
-
-            <section id='signing-rpm-packages'>
-                <title>Signing RPM Packages</title>
-
-                <para>
-                    To enable signing RPM packages, you must set up the
-                    following configurations in either your
-                    <filename>local.config</filename> or
-                    <filename>distro.config</filename> file:
-                    <literallayout class='monospaced'>
-     # Inherit sign_rpm.bbclass to enable signing functionality
-     INHERIT += " sign_rpm"
-     # Define the GPG key that will be used for signing.
-     RPM_GPG_NAME = "<replaceable>key_name</replaceable>"
-     # Provide passphrase for the key
-     RPM_GPG_PASSPHRASE = "<replaceable>passphrase</replaceable>"
-                    </literallayout>
-                    <note>
-                        Be sure to supply appropriate values for both
-                        <replaceable>key_name</replaceable> and
-                        <replaceable>passphrase</replaceable>
-                    </note>
-                    Aside from the
-                    <filename>RPM_GPG_NAME</filename> and
-                    <filename>RPM_GPG_PASSPHRASE</filename> variables in the
-                    previous example, two optional variables related to signing
-                    exist:
-                    <itemizedlist>
-                        <listitem><para>
-                            <emphasis><filename>GPG_BIN</filename>:</emphasis>
-                            Specifies a <filename>gpg</filename> binary/wrapper
-                            that is executed when the package is signed.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis><filename>GPG_PATH</filename>:</emphasis>
-                            Specifies the <filename>gpg</filename> home
-                            directory used when the package is signed.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-
-            <section id='processing-package-feeds'>
-                <title>Processing Package Feeds</title>
-
-                <para>
-                    In addition to being able to sign RPM packages, you can
-                    also enable signed package feeds for IPK and RPM packages.
-                </para>
-
-                <para>
-                    The steps you need to take to enable signed package feed
-                    use are similar to the steps used to sign RPM packages.
-                    You must define the following in your
-                    <filename>local.config</filename> or
-                    <filename>distro.config</filename> file:
-                    <literallayout class='monospaced'>
-     INHERIT += "sign_package_feed"
-     PACKAGE_FEED_GPG_NAME = "<replaceable>key_name</replaceable>"
-     PACKAGE_FEED_GPG_PASSPHRASE_FILE = "<replaceable>path_to_file_containing_passphrase</replaceable>"
-                    </literallayout>
-                    For signed package feeds, the passphrase must exist in a
-                    separate file, which is pointed to by the
-                    <filename>PACKAGE_FEED_GPG_PASSPHRASE_FILE</filename>
-                    variable.
-                    Regarding security, keeping a plain text passphrase out of
-                    the configuration is more secure.
-                </para>
-
-                <para>
-                    Aside from the
-                    <filename>PACKAGE_FEED_GPG_NAME</filename> and
-                    <filename>PACKAGE_FEED_GPG_PASSPHRASE_FILE</filename>
-                    variables, three optional variables related to signed
-                    package feeds exist:
-                    <itemizedlist>
-                        <listitem><para>
-                            <emphasis><filename>GPG_BIN</filename>:</emphasis>
-                            Specifies a <filename>gpg</filename> binary/wrapper
-                            that is executed when the package is signed.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis><filename>GPG_PATH</filename>:</emphasis>
-                            Specifies the <filename>gpg</filename> home
-                            directory used when the package is signed.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis><filename>PACKAGE_FEED_GPG_SIGNATURE_TYPE</filename>:</emphasis>
-                            Specifies the type of <filename>gpg</filename>
-                            signature.
-                            This variable applies only to RPM and IPK package
-                            feeds.
-                            Allowable values for the
-                            <filename>PACKAGE_FEED_GPG_SIGNATURE_TYPE</filename>
-                            are "ASC", which is the default and specifies ascii
-                            armored, and "BIN", which specifies binary.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-        </section>
-
-        <section id='testing-packages-with-ptest'>
-            <title>Testing Packages With ptest</title>
-
-            <para>
-                A Package Test (ptest) runs tests against packages built
-                by the OpenEmbedded build system on the target machine.
-                A ptest contains at least two items: the actual test, and
-                a shell script (<filename>run-ptest</filename>) that starts
-                the test.
-                The shell script that starts the test must not contain
-                the actual test - the script only starts the test.
-                On the other hand, the test can be anything from a simple
-                shell script that runs a binary and checks the output to
-                an elaborate system of test binaries and data files.
-            </para>
-
-            <para>
-                The test generates output in the format used by
-                Automake:
-                <literallayout class='monospaced'>
-     <replaceable>result</replaceable>: <replaceable>testname</replaceable>
-                </literallayout>
-                where the result can be <filename>PASS</filename>,
-                <filename>FAIL</filename>, or <filename>SKIP</filename>,
-                and the testname can be any identifying string.
-            </para>
-
-            <para>
-                For a list of Yocto Project recipes that are already
-                enabled with ptest, see the
-                <ulink url='https://wiki.yoctoproject.org/wiki/Ptest'>Ptest</ulink>
-                wiki page.
-                <note>
-                    A recipe is "ptest-enabled" if it inherits the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-ptest'><filename>ptest</filename></ulink>
-                    class.
-                </note>
-            </para>
-
-            <section id='adding-ptest-to-your-build'>
-                <title>Adding ptest to Your Build</title>
-
-                <para>
-                    To add package testing to your build, add the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></ulink>
-                    and <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_IMAGE_FEATURES'><filename>EXTRA_IMAGE_FEATURES</filename></ulink>
-                    variables to your <filename>local.conf</filename> file,
-                    which is found in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>:
-                    <literallayout class='monospaced'>
-     DISTRO_FEATURES_append = " ptest"
-     EXTRA_IMAGE_FEATURES += "ptest-pkgs"
-                    </literallayout>
-                    Once your build is complete, the ptest files are installed
-                    into the
-                    <filename>/usr/lib/<replaceable>package</replaceable>/ptest</filename>
-                    directory within the image, where
-                    <filename><replaceable>package</replaceable></filename>
-                    is the name of the package.
-                </para>
-            </section>
-
-            <section id='running-ptest'>
-                <title>Running ptest</title>
-
-                <para>
-                    The <filename>ptest-runner</filename> package installs a
-                    shell script that loops through all installed ptest test
-                    suites and runs them in sequence.
-                    Consequently, you might want to add this package to
-                    your image.
-                </para>
-            </section>
-
-            <section id='getting-your-package-ready'>
-                <title>Getting Your Package Ready</title>
-
-                <para>
-                    In order to enable a recipe to run installed ptests
-                    on target hardware,
-                    you need to prepare the recipes that build the packages
-                    you want to test.
-                    Here is what you have to do for each recipe:
-                    <itemizedlist>
-                        <listitem><para><emphasis>Be sure the recipe
-                            inherits the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-ptest'><filename>ptest</filename></ulink>
-                            class:</emphasis>
-                            Include the following line in each recipe:
-                            <literallayout class='monospaced'>
-     inherit ptest
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para><emphasis>Create <filename>run-ptest</filename>:</emphasis>
-                            This script starts your test.
-                            Locate the script where you will refer to it
-                            using
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>.
-                            Here is an example that starts a test for
-                            <filename>dbus</filename>:
-                            <literallayout class='monospaced'>
-     #!/bin/sh
-     cd test
-     make -k runtest-TESTS
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para><emphasis>Ensure dependencies are
-                            met:</emphasis>
-                            If the test adds build or runtime dependencies
-                            that normally do not exist for the package
-                            (such as requiring "make" to run the test suite),
-                            use the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPENDS'><filename>DEPENDS</filename></ulink>
-                            and
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-RDEPENDS'><filename>RDEPENDS</filename></ulink>
-                            variables in your recipe in order for the package
-                            to meet the dependencies.
-                            Here is an example where the package has a runtime
-                            dependency on "make":
-                            <literallayout class='monospaced'>
-     RDEPENDS_${PN}-ptest += "make"
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para><emphasis>Add a function to build the
-                            test suite:</emphasis>
-                            Not many packages support cross-compilation of
-                            their test suites.
-                            Consequently, you usually need to add a
-                            cross-compilation function to the package.
-                            </para>
-
-                            <para>Many packages based on Automake compile and
-                            run the test suite by using a single command
-                            such as <filename>make check</filename>.
-                            However, the host <filename>make check</filename>
-                            builds and runs on the same computer, while
-                            cross-compiling requires that the package is built
-                            on the host but executed for the target
-                            architecture (though often, as in the case for
-                            ptest, the execution occurs on the host).
-                            The built version of Automake that ships with the
-                            Yocto Project includes a patch that separates
-                            building and execution.
-                            Consequently, packages that use the unaltered,
-                            patched version of <filename>make check</filename>
-                            automatically cross-compiles.</para>
-                            <para>Regardless, you still must add a
-                            <filename>do_compile_ptest</filename> function to
-                            build the test suite.
-                            Add a function similar to the following to your
-                            recipe:
-                            <literallayout class='monospaced'>
-     do_compile_ptest() {
-        oe_runmake buildtest-TESTS
-     }
-                            </literallayout>
-                            </para></listitem>
-                       <listitem><para><emphasis>Ensure special configurations
-                            are set:</emphasis>
-                            If the package requires special configurations
-                            prior to compiling the test code, you must
-                            insert a <filename>do_configure_ptest</filename>
-                            function into the recipe.
-                            </para></listitem>
-                       <listitem><para><emphasis>Install the test
-                            suite:</emphasis>
-                            The <filename>ptest</filename> class
-                            automatically copies the file
-                            <filename>run-ptest</filename> to the target and
-                            then runs make <filename>install-ptest</filename>
-                            to run the tests.
-                            If this is not enough, you need to create a
-                            <filename>do_install_ptest</filename> function and
-                            make sure it gets called after the
-                            "make install-ptest" completes.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-        </section>
-
-        <section id='creating-node-package-manager-npm-packages'>
-            <title>Creating Node Package Manager (NPM) Packages</title>
-
-            <para>
-                <ulink url='https://en.wikipedia.org/wiki/Npm_(software)'>NPM</ulink>
-                is a package manager for the JavaScript programming
-                language.
-                The Yocto Project supports the NPM
-                <ulink url='&YOCTO_DOCS_BB_URL;#bb-fetchers'>fetcher</ulink>.
-                You can use this fetcher in combination with
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-devtool-reference'><filename>devtool</filename></ulink>
-                to create recipes that produce NPM packages.
-            </para>
-
-            <para>
-                Two workflows exist that allow you to create NPM packages
-                using <filename>devtool</filename>: the NPM registry modules
-                method and the NPM project code method.
-                <note>
-                    While it is possible to create NPM recipes manually,
-                    using <filename>devtool</filename> is far simpler.
-                </note>
-                Additionally, some requirements and caveats exist.
-            </para>
-
-            <section id='npm-package-creation-requirements'>
-                <title>Requirements and Caveats</title>
-
-                <para>
-                    You need to be aware of the following before using
-                    <filename>devtool</filename> to create NPM packages:
-                    <itemizedlist>
-                        <listitem><para>
-                            Of the two methods that you can use
-                            <filename>devtool</filename> to create NPM
-                            packages, the registry approach is slightly
-                            simpler.
-                            However, you might consider the project
-                            approach because you do not have to publish
-                            your module in the NPM registry
-                            (<ulink url='https://docs.npmjs.com/misc/registry'><filename>npm-registry</filename></ulink>),
-                            which is NPM's public registry.
-                            </para></listitem>
-                        <listitem><para>
-                            Be familiar with
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-devtool-reference'><filename>devtool</filename></ulink>.
-                            </para></listitem>
-                        <listitem><para>
-                            The NPM host tools need the native
-                            <filename>nodejs-npm</filename> package, which
-                            is part of the OpenEmbedded environment.
-                            You need to get the package by cloning the
-                            <ulink url='https://github.com/openembedded/meta-openembedded'></ulink>
-                            repository out of GitHub.
-                            Be sure to add the path to your local copy to
-                            your <filename>bblayers.conf</filename> file.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>devtool</filename> cannot detect
-                            native libraries in module dependencies.
-                            Consequently, you must manually add packages
-                            to your recipe.
-                            </para></listitem>
-                        <listitem><para>
-                            While deploying NPM packages,
-                            <filename>devtool</filename> cannot determine
-                            which dependent packages are missing on the
-                            target (e.g. the node runtime
-                            <filename>nodejs</filename>).
-                            Consequently, you need to find out what
-                            files are missing and be sure they are on the
-                            target.
-                            </para></listitem>
-                        <listitem><para>
-                            Although you might not need NPM to run your
-                            node package, it is useful to have NPM on your
-                            target.
-                            The NPM package name is
-                            <filename>nodejs-npm</filename>.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-
-            <section id='npm-using-the-registry-modules-method'>
-                <title>Using the Registry Modules Method</title>
-
-                <para>
-                    This section presents an example that uses the
-                    <filename>cute-files</filename> module, which is a
-                    file browser web application.
-                    <note>
-                        You must know the <filename>cute-files</filename>
-                        module version.
-                    </note>
-                </para>
-
-                <para>
-                    The first thing you need to do is use
-                    <filename>devtool</filename> and the NPM fetcher to
-                    create the recipe:
-                    <literallayout class='monospaced'>
-     $ devtool add "npm://registry.npmjs.org;package=cute-files;version=1.0.2"
-                    </literallayout>
-                    The <filename>devtool add</filename> command runs
-                    <filename>recipetool create</filename> and uses the
-                    same fetch URI to download each dependency and capture
-                    license details where possible.
-                    The result is a generated recipe.
-                </para>
-
-                <para>
-                    The recipe file is fairly simple and contains every
-                    license that <filename>recipetool</filename> finds
-                    and includes the licenses in the recipe's
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-LIC_FILES_CHKSUM'><filename>LIC_FILES_CHKSUM</filename></ulink>
-                    variables.
-                    You need to examine the variables and look for those
-                    with "unknown" in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-LICENSE'><filename>LICENSE</filename></ulink>
-                    field.
-                    You need to track down the license information for
-                    "unknown" modules and manually add the information to the
-                    recipe.
-                </para>
-
-                <para>
-                    <filename>recipetool</filename> creates a "shrinkwrap" file
-                    for your recipe.
-                    Shrinkwrap files capture the version of all dependent
-                    modules.
-                    Many packages do not provide shrinkwrap files.
-                    <filename>recipetool</filename> create a shrinkwrap
-                    file as it runs.
-                    <note>
-                        A package is created for each sub-module.
-                        This policy is the only practical way to have the
-                        licenses for all of the dependencies represented
-                        in the license manifest of the image.
-                    </note>
-                </para>
-
-                <para>
-                    The <filename>devtool edit-recipe</filename> command
-                    lets you take a look at the recipe:
-                    <literallayout class='monospaced'>
-     $ devtool edit-recipe cute-files
-     SUMMARY = "Turn any folder on your computer into a cute file browser, available on the local network."
-     LICENSE = "MIT &amp; ISC &amp; Unknown"
-     LIC_FILES_CHKSUM = "file://LICENSE;md5=71d98c0a1db42956787b1909c74a86ca \
-                         file://node_modules/toidentifier/LICENSE;md5=1a261071a044d02eb6f2bb47f51a3502 \
-                         file://node_modules/debug/LICENSE;md5=ddd815a475e7338b0be7a14d8ee35a99 \
-                         ...
-
-     SRC_URI = " \
-         npm://registry.npmjs.org/;package=cute-files;version=${PV} \
-         npmsw://${THISDIR}/${BPN}/npm-shrinkwrap.json \
-     "
-
-     S = "${WORKDIR}/npm"
-
-     inherit npm
-
-     LICENSE_${PN} = "MIT"
-     LICENSE_${PN}-accepts = "MIT"
-     LICENSE_${PN}-array-flatten = "MIT"
-     ...
-     LICENSE_${PN}-vary = "MIT"
-                    </literallayout>
-                    Three key points exist in the previous example:
-                    <itemizedlist>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                            uses the NPM scheme so that the NPM fetcher
-                            is used.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>recipetool</filename> collects all
-                            the license information.
-                            If a sub-module's license is unavailable,
-                            the sub-module's name appears in the comments.
-                            </para></listitem>
-                        <listitem><para>
-                            The <filename>inherit npm</filename> statement
-                            causes the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-npm'><filename>npm</filename></ulink>
-                            class to package up all the modules.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    You can run the following command to build the
-                    <filename>cute-files</filename> package:
-                    <literallayout class='monospaced'>
-     $ devtool build cute-files
-                    </literallayout>
-                    Remember that <filename>nodejs</filename> must be
-                    installed on the target before your package.
-                </para>
-
-                <para>
-                    Assuming 192.168.7.2 for the target's IP address, use
-                    the following command to deploy your package:
-                    <literallayout class='monospaced'>
-     $ devtool deploy-target -s cute-files root@192.168.7.2
-                    </literallayout>
-                    Once the package is installed on the target, you can
-                    test the application:
-                    <note>
-                        Because of a know issue, you cannot simply run
-                        <filename>cute-files</filename> as you would if you
-                        had run <filename>npm install</filename>.
-                    </note>
-                    <literallayout class='monospaced'>
-     $ cd /usr/lib/node_modules/cute-files
-     $ node cute-files.js
-                    </literallayout>
-                    On a browser, go to
-                    <filename>http://192.168.7.2:3000</filename> and you
-                    see the following:
-                    <imagedata fileref="figures/cute-files-npm-example.png" align="center" width="6in" depth="4in" />
-                </para>
-
-                <para>
-                    You can find the recipe in
-                    <filename>workspace/recipes/cute-files</filename>.
-                    You can use the recipe in any layer you choose.
-                </para>
-            </section>
-
-            <section id='npm-using-the-npm-projects-method'>
-                <title>Using the NPM Projects Code Method</title>
-
-                <para>
-                    Although it is useful to package modules already in the
-                    NPM registry, adding <filename>node.js</filename> projects
-                    under development is a more common developer use case.
-                </para>
-
-                <para>
-                    This section covers the NPM projects code method, which is
-                    very similar to the "registry" approach described in the
-                    previous section.
-                    In the NPM projects method, you provide
-                    <filename>devtool</filename> with an URL that points to the
-                    source files.
-                </para>
-
-                <para>
-                    Replicating the same example, (i.e.
-                    <filename>cute-files</filename>) use the following command:
-                    <literallayout class='monospaced'>
-     $ devtool add https://github.com/martinaglv/cute-files.git
-                    </literallayout>
-                    The recipe this command generates is very similar to the
-                    recipe created in the previous section.
-                    However, the <filename>SRC_URI</filename> looks like the
-                    following:
-                    <literallayout class='monospaced'>
-     SRC_URI = " \
-         git://github.com/martinaglv/cute-files.git;protocol=https \
-         npmsw://${THISDIR}/${BPN}/npm-shrinkwrap.json \
-         "
-                    </literallayout>
-                    In this example, the main module is taken from the Git
-                    repository and dependents are taken from the NPM registry.
-                    Other than those differences, the recipe is basically the
-                    same between the two methods.
-                    You can build and deploy the package exactly as described
-                    in the previous section that uses the registry modules
-                    method.
-                </para>
-            </section>
-        </section>
-
-        <section id='adding-custom-metadata-to-packages'>
-            <title>Adding custom metadata to packages</title>
-
-            <para>
-                The variable <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_ADD_METADATA'><filename>PACKAGE_ADD_METADATA</filename></ulink>
-                can be used to add additional metadata to packages. This is
-                reflected in the package control/spec file. To take the ipk
-                format for example, the CONTROL file stored inside would
-                contain the additional metadata as additional lines.
-            </para>
-
-            <para>
-                The variable can be used in multiple ways, including using
-                suffixes to set it for a specific package type and/or package.
-                Note that the order of precedence is the same as this list:
-                <itemizedlist>
-                    <listitem><para>
-                        <filename>PACKAGE_ADD_METADATA_&lt;PKGTYPE&gt;_&lt;PN&gt;</filename>
-                    </para></listitem>
-                    <listitem><para>
-                        <filename>PACKAGE_ADD_METADATA_&lt;PKGTYPE&gt;</filename>
-                    </para></listitem>
-                    <listitem><para>
-                        <filename>PACKAGE_ADD_METADATA_&lt;PN&gt;</filename>
-                    </para></listitem>
-                    <listitem><para>
-                        <filename>PACKAGE_ADD_METADATA</filename>
-                    </para></listitem>
-                </itemizedlist>
-                &lt;PKGTYPE&gt; is a parameter and expected to be a
-                distinct name of specific package type:
-                <itemizedlist>
-                    <listitem><para>IPK for .ipk packages</para></listitem>
-                    <listitem><para>DEB for .deb packages</para></listitem>
-                    <listitem><para>RPM for .rpm packages</para></listitem>
-                </itemizedlist>
-                &lt;PN&gt; is a parameter and expected to be a package name.
-            </para>
-
-            <para>
-                The variable can contain multiple [one-line] metadata fields
-                separated by the literal sequence '\n'. The separator can be
-                redefined using the variable flag <filename>separator</filename>.
-            </para>
-
-            <para>
-                The following is an example that adds two custom fields for
-                ipk packages:
-                <literallayout class='monospaced'>
-    PACKAGE_ADD_METADATA_IPK = "Vendor: CustomIpk\nGroup: Applications/Spreadsheets"
-                </literallayout>
-            </para>
-        </section>
-
-    </section>
-
-    <section id='efficiently-fetching-source-files-during-a-build'>
-        <title>Efficiently Fetching Source Files During a Build</title>
-
-        <para>
-            The OpenEmbedded build system works with source files located
-            through the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-            variable.
-            When you build something using BitBake, a big part of the operation
-            is locating and downloading all the source tarballs.
-            For images, downloading all the source for various packages can
-            take a significant amount of time.
-        </para>
-
-        <para>
-            This section shows you how you can use mirrors to speed up
-            fetching source files and how you can pre-fetch files all of which
-            leads to more efficient use of resources and time.
-        </para>
-
-        <section id='setting-up-effective-mirrors'>
-            <title>Setting up Effective Mirrors</title>
-
-            <para>
-                A good deal that goes into a Yocto Project
-                build is simply downloading all of the source tarballs.
-                Maybe you have been working with another build system
-                (OpenEmbedded or Angstrom) for which you have built up a
-                sizable directory of source tarballs.
-                Or, perhaps someone else has such a directory for which you
-                have read access.
-                If so, you can save time by adding statements to your
-                configuration file so that the build process checks local
-                directories first for existing tarballs before checking the
-                Internet.
-            </para>
-
-            <para>
-                Here is an efficient way to set it up in your
-                <filename>local.conf</filename> file:
-                <literallayout class='monospaced'>
-     SOURCE_MIRROR_URL ?= "file:///home/you/your-download-dir/"
-     INHERIT += "own-mirrors"
-     BB_GENERATE_MIRROR_TARBALLS = "1"
-     # BB_NO_NETWORK = "1"
-                </literallayout>
-            </para>
-
-            <para>
-                In the previous example, the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-BB_GENERATE_MIRROR_TARBALLS'><filename>BB_GENERATE_MIRROR_TARBALLS</filename></ulink>
-                variable causes the OpenEmbedded build system to generate
-                tarballs of the Git repositories and store them in the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-DL_DIR'><filename>DL_DIR</filename></ulink>
-                directory.
-                Due to performance reasons, generating and storing these
-                tarballs is not the build system's default behavior.
-            </para>
-
-            <para>
-                You can also use the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PREMIRRORS'><filename>PREMIRRORS</filename></ulink>
-                variable.
-                For an example, see the variable's glossary entry in the
-                Yocto Project Reference Manual.
-            </para>
-        </section>
-
-        <section id='getting-source-files-and-suppressing-the-build'>
-            <title>Getting Source Files and Suppressing the Build</title>
-
-            <para>
-                Another technique you can use to ready yourself for a
-                successive string of build operations, is to pre-fetch
-                all the source files without actually starting a build.
-                This technique lets you work through any download issues
-                and ultimately gathers all the source files into your
-                download directory
-                <ulink url='&YOCTO_DOCS_REF_URL;#structure-build-downloads'><filename>build/downloads</filename></ulink>,
-                which is located with
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-DL_DIR'><filename>DL_DIR</filename></ulink>.
-            </para>
-
-            <para>
-                Use the following BitBake command form to fetch all the
-                necessary sources without starting the build:
-                <literallayout class='monospaced'>
-     $ bitbake <replaceable>target</replaceable> --runall=fetch
-                </literallayout>
-                This variation of the BitBake command guarantees that you
-                have all the sources for that BitBake target should you
-                disconnect from the Internet and want to do the build
-                later offline.
-            </para>
-        </section>
-    </section>
-
-    <section id="selecting-an-initialization-manager">
-        <title>Selecting an Initialization Manager</title>
-
-        <para>
-            By default, the Yocto Project uses SysVinit as the initialization
-            manager.
-            However, support also exists for systemd,
-            which is a full replacement for init with
-            parallel starting of services, reduced shell overhead and other
-            features that are used by many distributions.
-        </para>
-
-        <para>
-            Within the system, SysVinit treats system components as services.
-            These services are maintained as shell scripts stored in the
-            <filename>/etc/init.d/</filename> directory.
-            Services organize into different run levels.
-            This organization is maintained by putting links to the services
-            in the <filename>/etc/rcN.d/</filename> directories, where
-            <replaceable>N/</replaceable> is one of the following options:
-            "S", "0", "1", "2", "3", "4", "5", or "6".
-            <note>
-                Each runlevel has a dependency on the previous runlevel.
-                This dependency allows the services to work properly.
-            </note>
-        </para>
-
-        <para>
-            In comparison, systemd treats components as units.
-            Using units is a broader concept as compared to using a service.
-            A unit includes several different types of entities.
-            Service is one of the types of entities.
-            The runlevel concept in SysVinit corresponds to the concept of a
-            target in systemd, where target is also a type of supported unit.
-        </para>
-
-        <para>
-            In a SysVinit-based system, services load sequentially (i.e. one
-            by one) during and parallelization is not supported.
-            With systemd, services start in parallel.
-            Needless to say, the method can have an impact on system startup
-            performance.
-        </para>
-
-        <para>
-            If you want to use SysVinit, you do
-            not have to do anything.
-            But, if you want to use systemd, you must
-            take some steps as described in the following sections.
-        </para>
-
-        <section id='using-systemd-exclusively'>
-            <title>Using systemd Exclusively</title>
-
-            <para>
-                Set these variables in your distribution configuration
-                file as follows:
-                <literallayout class='monospaced'>
-     DISTRO_FEATURES_append = " systemd"
-     VIRTUAL-RUNTIME_init_manager = "systemd"
-                </literallayout>
-                You can also prevent the SysVinit
-                distribution feature from
-                being automatically enabled as follows:
-                <literallayout class='monospaced'>
-     DISTRO_FEATURES_BACKFILL_CONSIDERED = "sysvinit"
-                </literallayout>
-                Doing so removes any redundant SysVinit scripts.
-            </para>
-
-            <para>
-                To remove  initscripts from your image altogether,
-                set this variable also:
-                <literallayout class='monospaced'>
-     VIRTUAL-RUNTIME_initscripts = ""
-                </literallayout>
-            </para>
-
-            <para>
-                For information on the backfill variable, see
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO_FEATURES_BACKFILL_CONSIDERED'><filename>DISTRO_FEATURES_BACKFILL_CONSIDERED</filename></ulink>.
-            </para>
-        </section>
-
-        <section id='using-systemd-for-the-main-image-and-using-sysvinit-for-the-rescue-image'>
-            <title>Using systemd for the Main Image and Using SysVinit for the Rescue Image</title>
-
-            <para>
-                Set these variables in your distribution configuration
-                file as follows:
-                <literallayout class='monospaced'>
-     DISTRO_FEATURES_append = " systemd"
-     VIRTUAL-RUNTIME_init_manager = "systemd"
-                </literallayout>
-                Doing so causes your main image to use the
-                <filename>packagegroup-core-boot.bb</filename> recipe and
-                systemd.
-                The rescue/minimal image cannot use this package group.
-                However, it can install SysVinit
-                and the appropriate packages will have support for both
-                systemd and SysVinit.
-            </para>
-        </section>
-    </section>
-
-    <section id="selecting-dev-manager">
-        <title>Selecting a Device Manager</title>
-
-        <para>
-            The Yocto Project provides multiple ways to manage the device
-            manager (<filename>/dev</filename>):
-            <itemizedlist>
-                <listitem><para><emphasis>Persistent and Pre-Populated<filename>/dev</filename>:</emphasis>
-                    For this case, the <filename>/dev</filename> directory
-                    is persistent and the required device nodes are created
-                    during the build.
-                    </para></listitem>
-                <listitem><para><emphasis>Use <filename>devtmpfs</filename> with a Device Manager:</emphasis>
-                    For this case, the <filename>/dev</filename> directory
-                    is provided by the kernel as an in-memory file system and
-                    is automatically populated by the kernel at runtime.
-                    Additional configuration of device nodes is done in user
-                    space by a device manager like
-                    <filename>udev</filename> or
-                    <filename>busybox-mdev</filename>.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <section id="static-dev-management">
-            <title>Using Persistent and Pre-Populated<filename>/dev</filename></title>
-
-            <para>
-                To use the static method for device population, you need to
-                set the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-USE_DEVFS'><filename>USE_DEVFS</filename></ulink>
-                variable to "0" as follows:
-                <literallayout class='monospaced'>
-     USE_DEVFS = "0"
-                </literallayout>
-            </para>
-
-            <para>
-                The content of the resulting <filename>/dev</filename>
-                directory is defined in a Device Table file.
-                The
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_DEVICE_TABLES'><filename>IMAGE_DEVICE_TABLES</filename></ulink>
-                variable defines the Device Table to use and should be set
-                in the machine or distro configuration file.
-                Alternatively, you can set this variable in your
-                <filename>local.conf</filename> configuration file.
-            </para>
-
-            <para>
-                If you do not define the
-                <filename>IMAGE_DEVICE_TABLES</filename> variable, the default
-                <filename>device_table-minimal.txt</filename> is used:
-                <literallayout class='monospaced'>
-     IMAGE_DEVICE_TABLES = "device_table-mymachine.txt"
-                </literallayout>
-            </para>
-
-            <para>
-                The population is handled by the <filename>makedevs</filename>
-                utility during image creation:
-            </para>
-        </section>
-
-        <section id="devtmpfs-dev-management">
-            <title>Using <filename>devtmpfs</filename> and a Device Manager</title>
-
-            <para>
-                To use the dynamic method for device population, you need to
-                use (or be sure to set) the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-USE_DEVFS'><filename>USE_DEVFS</filename></ulink>
-                variable to "1", which is the default:
-                <literallayout class='monospaced'>
-     USE_DEVFS = "1"
-                </literallayout>
-                With this setting, the resulting <filename>/dev</filename>
-                directory is populated by the kernel using
-                <filename>devtmpfs</filename>.
-                Make sure the corresponding kernel configuration variable
-                <filename>CONFIG_DEVTMPFS</filename> is set when building
-                you build a Linux kernel.
-            </para>
-
-            <para>
-                All devices created by <filename>devtmpfs</filename> will be
-                owned by <filename>root</filename> and have permissions
-                <filename>0600</filename>.
-            </para>
-
-            <para>
-                To have more control over the device nodes, you can use a
-                device manager like <filename>udev</filename> or
-                <filename>busybox-mdev</filename>.
-                You choose the device manager by defining the
-                <filename>VIRTUAL-RUNTIME_dev_manager</filename> variable
-                in your machine or distro configuration file.
-                Alternatively, you can set this variable in your
-                <filename>local.conf</filename> configuration file:
-                <literallayout class='monospaced'>
-     VIRTUAL-RUNTIME_dev_manager = "udev"
-
-     # Some alternative values
-     # VIRTUAL-RUNTIME_dev_manager = "busybox-mdev"
-     # VIRTUAL-RUNTIME_dev_manager = "systemd"
-                </literallayout>
-            </para>
-        </section>
-    </section>
-
-    <section id="platdev-appdev-srcrev">
-        <title>Using an External SCM</title>
-
-        <para>
-            If you're working on a recipe that pulls from an external Source
-            Code Manager (SCM), it is possible to have the OpenEmbedded build
-            system notice new recipe changes added to the SCM and then build
-            the resulting packages that depend on the new recipes by using
-            the latest versions.
-            This only works for SCMs from which it is possible to get a
-            sensible revision number for changes.
-            Currently, you can do this with Apache Subversion (SVN), Git, and
-            Bazaar (BZR) repositories.
-        </para>
-
-        <para>
-            To enable this behavior, the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>
-            of the recipe needs to reference
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-SRCPV'><filename>SRCPV</filename></ulink>.
-            Here is an example:
-            <literallayout class='monospaced'>
-     PV = "1.2.3+git${SRCPV}"
-            </literallayout>
-            Then, you can add the following to your
-            <filename>local.conf</filename>:
-            <literallayout class='monospaced'>
-     SRCREV_pn-<replaceable>PN</replaceable> = "${AUTOREV}"
-            </literallayout>
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink>
-            is the name of the recipe for which you want to enable automatic source
-            revision updating.
-        </para>
-
-        <para>
-            If you do not want to update your local configuration file, you can
-            add the following directly to the recipe to finish enabling
-            the feature:
-            <literallayout class='monospaced'>
-     SRCREV = "${AUTOREV}"
-            </literallayout>
-        </para>
-
-        <para>
-            The Yocto Project provides a distribution named
-            <filename>poky-bleeding</filename>, whose configuration
-            file contains the line:
-            <literallayout class='monospaced'>
-     require conf/distro/include/poky-floating-revisions.inc
-            </literallayout>
-            This line pulls in the listed include file that contains
-            numerous lines of exactly that form:
-            <literallayout class='monospaced'>
-     #SRCREV_pn-opkg-native ?= "${AUTOREV}"
-     #SRCREV_pn-opkg-sdk ?= "${AUTOREV}"
-     #SRCREV_pn-opkg ?= "${AUTOREV}"
-     #SRCREV_pn-opkg-utils-native ?= "${AUTOREV}"
-     #SRCREV_pn-opkg-utils ?= "${AUTOREV}"
-     SRCREV_pn-gconf-dbus ?= "${AUTOREV}"
-     SRCREV_pn-matchbox-common ?= "${AUTOREV}"
-     SRCREV_pn-matchbox-config-gtk ?= "${AUTOREV}"
-     SRCREV_pn-matchbox-desktop ?= "${AUTOREV}"
-     SRCREV_pn-matchbox-keyboard ?= "${AUTOREV}"
-     SRCREV_pn-matchbox-panel-2 ?= "${AUTOREV}"
-     SRCREV_pn-matchbox-themes-extra ?= "${AUTOREV}"
-     SRCREV_pn-matchbox-terminal ?= "${AUTOREV}"
-     SRCREV_pn-matchbox-wm ?= "${AUTOREV}"
-     SRCREV_pn-settings-daemon ?= "${AUTOREV}"
-     SRCREV_pn-screenshot ?= "${AUTOREV}"
-          .
-          .
-          .
-            </literallayout>
-            These lines allow you to experiment with building a
-            distribution that tracks the latest development source
-            for numerous packages.
-            <note><title>Caution</title>
-                The <filename>poky-bleeding</filename> distribution
-                is not tested on a regular basis.
-                Keep this in mind if you use it.
-            </note>
-        </para>
-    </section>
-
-    <section id='creating-a-read-only-root-filesystem'>
-        <title>Creating a Read-Only Root Filesystem</title>
-
-        <para>
-            Suppose, for security reasons, you need to disable
-            your target device's root filesystem's write permissions
-            (i.e. you need a read-only root filesystem).
-            Or, perhaps you are running the device's operating system
-            from a read-only storage device.
-            For either case, you can customize your image for
-            that behavior.
-        </para>
-
-        <note>
-            Supporting a read-only root filesystem requires that the system and
-            applications do not try to write to the root filesystem.
-            You must configure all parts of the target system to write
-            elsewhere, or to gracefully fail in the event of attempting to
-            write to the root filesystem.
-        </note>
-
-        <section id='creating-the-root-filesystem'>
-            <title>Creating the Root Filesystem</title>
-
-            <para>
-                To create the read-only root filesystem, simply add the
-                "read-only-rootfs" feature to your image, normally in one of two ways.
-                The first way is to add the "read-only-rootfs" image feature
-                in the image's recipe file via the
-                <filename>IMAGE_FEATURES</filename> variable:
-                <literallayout class='monospaced'>
-     IMAGE_FEATURES += "read-only-rootfs"
-                </literallayout>
-                As an alternative, you can add the same feature from within your
-                build directory's <filename>local.conf</filename> file with the
-                associated <filename>EXTRA_IMAGE_FEATURES</filename> variable, as in:
-                <literallayout class='monospaced'>
-     EXTRA_IMAGE_FEATURES = "read-only-rootfs"
-                </literallayout>
-            </para>
-
-            <para>
-                For more information on how to use these variables, see the
-                "<link linkend='usingpoky-extend-customimage-imagefeatures'>Customizing Images Using Custom <filename>IMAGE_FEATURES</filename> and <filename>EXTRA_IMAGE_FEATURES</filename></link>"
-                section.
-                For information on the variables, see
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></ulink>
-                and <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_IMAGE_FEATURES'><filename>EXTRA_IMAGE_FEATURES</filename></ulink>.
-            </para>
-        </section>
-
-        <section id='post-installation-scripts'>
-            <title>Post-Installation Scripts</title>
-
-            <para>
-                It is very important that you make sure all
-                post-Installation (<filename>pkg_postinst</filename>) scripts
-                for packages that are installed into the image can be run
-                at the time when the root filesystem is created during the
-                build on the host system.
-                These scripts cannot attempt to run during first-boot on the
-                target device.
-                With the "read-only-rootfs" feature enabled,
-                the build system checks during root filesystem creation to make
-                sure all post-installation scripts succeed.
-                If any of these scripts still need to be run after the root
-                filesystem is created, the build immediately fails.
-                These build-time checks ensure that the build fails
-                rather than the target device fails later during its
-                initial boot operation.
-            </para>
-
-            <para>
-                Most of the common post-installation scripts generated by the
-                build system for the out-of-the-box Yocto Project are engineered
-                so that they can run during root filesystem creation
-                (e.g. post-installation scripts for caching fonts).
-                However, if you create and add custom scripts, you need
-                to be sure they can be run during this file system creation.
-            </para>
-
-            <para>
-                Here are some common problems that prevent
-                post-installation scripts from running during root filesystem
-                creation:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>Not using $D in front of absolute
-                        paths:</emphasis>
-                        The build system defines
-                        <filename>$</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-D'><filename>D</filename></ulink>
-                        when the root filesystem is created.
-                        Furthermore, <filename>$D</filename> is blank when the
-                        script is run on the target device.
-                        This implies two purposes for <filename>$D</filename>:
-                        ensuring paths are valid in both the host and target
-                        environments, and checking to determine which
-                        environment is being used as a method for taking
-                        appropriate actions.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Attempting to run processes that are
-                        specific to or dependent on the target
-                        architecture:</emphasis>
-                        You can work around these attempts by using native
-                        tools, which run on the host system,
-                        to accomplish the same tasks, or
-                        by alternatively running the processes under QEMU,
-                        which has the <filename>qemu_run_binary</filename>
-                        function.
-                        For more information, see the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-qemu'><filename>qemu</filename></ulink>
-                        class.</para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='areas-with-write-access'>
-            <title>Areas With Write Access</title>
-
-            <para>
-                With the "read-only-rootfs" feature enabled,
-                any attempt by the target to write to the root filesystem at
-                runtime fails.
-                Consequently, you must make sure that you configure processes
-                and applications that attempt these types of writes do so
-                to directories with write access (e.g.
-                <filename>/tmp</filename> or <filename>/var/run</filename>).
-            </para>
-        </section>
-    </section>
-
-
-
-
-    <section id='maintaining-build-output-quality'>
-        <title>Maintaining Build Output Quality</title>
-
-        <para>
-            Many factors can influence the quality of a build.
-            For example, if you upgrade a recipe to use a new version of an
-            upstream software package or you experiment with some new
-            configuration options, subtle changes can occur that you might
-            not detect until later.
-            Consider the case where your recipe is using a newer version of
-            an upstream package.
-            In this case, a new version of a piece of software might
-            introduce an optional dependency on another library, which is
-            auto-detected.
-            If that library has already been built when the software is
-            building, the software will link to the built library and that
-            library will be pulled into your image along with the new
-            software even if you did not want the library.
-        </para>
-
-        <para>
-            The
-            <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-buildhistory'><filename>buildhistory</filename></ulink>
-            class exists to help you maintain the quality of your build
-            output.
-            You can use the class to highlight unexpected and possibly
-            unwanted changes in the build output.
-            When you enable build history, it records information about the
-            contents of each package and image and then commits that
-            information to a local Git repository where you can examine
-            the information.
-        </para>
-
-        <para>
-            The remainder of this section describes the following:
-            <itemizedlist>
-               <listitem><para>
-                   How you can enable and disable build history
-                   </para></listitem>
-               <listitem><para>
-                   How to understand what the build history contains
-                   </para></listitem>
-               <listitem><para>
-                   How to limit the information used for build history
-                   </para></listitem>
-               <listitem><para>
-                   How to examine the build history from both a
-                   command-line and web interface
-                   </para></listitem>
-           </itemizedlist>
-        </para>
-
-        <section id='enabling-and-disabling-build-history'>
-            <title>Enabling and Disabling Build History</title>
-
-            <para>
-                Build history is disabled by default.
-                To enable it, add the following <filename>INHERIT</filename>
-                statement and set the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-BUILDHISTORY_COMMIT'><filename>BUILDHISTORY_COMMIT</filename></ulink>
-                variable to "1" at the end of your
-                <filename>conf/local.conf</filename> file found in the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>:
-                <literallayout class='monospaced'>
-     INHERIT += "buildhistory"
-     BUILDHISTORY_COMMIT = "1"
-                </literallayout>
-                Enabling build history as previously described causes the
-                OpenEmbedded build system to collect build output information
-                and commit it as a single commit to a local
-                <ulink url='&YOCTO_DOCS_OM_URL;#git'>Git</ulink>
-                repository.
-                <note>
-                    Enabling build history increases your build times slightly,
-                    particularly for images, and increases the amount of disk
-                    space used during the build.
-                </note>
-            </para>
-
-            <para>
-                You can disable build history by removing the previous
-                statements from your <filename>conf/local.conf</filename>
-                file.
-            </para>
-        </section>
-
-        <section id='understanding-what-the-build-history-contains'>
-            <title>Understanding What the Build History Contains</title>
-
-            <para>
-                Build history information is kept in
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-TOPDIR'><filename>TOPDIR</filename></ulink><filename>}/buildhistory</filename>
-                in the Build Directory as defined by the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-BUILDHISTORY_DIR'><filename>BUILDHISTORY_DIR</filename></ulink>
-                variable.
-                The following is an example abbreviated listing:
-                <imagedata fileref="figures/buildhistory.png" align="center" width="6in" depth="4in" />
-            </para>
-
-            <para>
-                At the top level, a <filename>metadata-revs</filename>
-                file exists that lists the revisions of the repositories for
-                the enabled layers when the build was produced.
-                The rest of the data splits into separate
-                <filename>packages</filename>, <filename>images</filename>
-                and <filename>sdk</filename> directories, the contents of
-                which are described as follows.
-            </para>
-
-            <section id='build-history-package-information'>
-                <title>Build History Package Information</title>
-
-                <para>
-                    The history for each package contains a text file that has
-                    name-value pairs with information about the package.
-                    For example,
-                    <filename>buildhistory/packages/i586-poky-linux/busybox/busybox/latest</filename>
-                    contains the following:
-                    <literallayout class='monospaced'>
-     PV = 1.22.1
-     PR = r32
-     RPROVIDES =
-     RDEPENDS = glibc (>= 2.20) update-alternatives-opkg
-     RRECOMMENDS = busybox-syslog busybox-udhcpc update-rc.d
-     PKGSIZE = 540168
-     FILES = /usr/bin/* /usr/sbin/* /usr/lib/busybox/* /usr/lib/lib*.so.* \
-        /etc /com /var /bin/* /sbin/* /lib/*.so.* /lib/udev/rules.d \
-        /usr/lib/udev/rules.d /usr/share/busybox /usr/lib/busybox/* \
-        /usr/share/pixmaps /usr/share/applications /usr/share/idl \
-        /usr/share/omf /usr/share/sounds /usr/lib/bonobo/servers
-     FILELIST = /bin/busybox /bin/busybox.nosuid /bin/busybox.suid /bin/sh \
-        /etc/busybox.links.nosuid /etc/busybox.links.suid
-                    </literallayout>
-                    Most of these name-value pairs correspond to variables
-                    used to produce the package.
-                    The exceptions are <filename>FILELIST</filename>, which
-                    is the actual list of files in the package, and
-                    <filename>PKGSIZE</filename>, which is the total size of
-                    files in the package in bytes.
-                </para>
-
-                <para>
-                    A file also exists that corresponds to the recipe from
-                    which the package came (e.g.
-                    <filename>buildhistory/packages/i586-poky-linux/busybox/latest</filename>):
-                    <literallayout class='monospaced'>
-     PV = 1.22.1
-     PR = r32
-     DEPENDS = initscripts kern-tools-native update-rc.d-native \
-        virtual/i586-poky-linux-compilerlibs virtual/i586-poky-linux-gcc \
-        virtual/libc virtual/update-alternatives
-     PACKAGES = busybox-ptest busybox-httpd busybox-udhcpd busybox-udhcpc \
-        busybox-syslog busybox-mdev busybox-hwclock busybox-dbg \
-        busybox-staticdev busybox-dev busybox-doc busybox-locale busybox
-                    </literallayout>
-                </para>
-
-                <para>
-                    Finally, for those recipes fetched from a version control
-                    system (e.g., Git), a file exists that lists source
-                    revisions that are specified in the recipe and lists
-                    the actual revisions used during the build.
-                    Listed and actual revisions might differ when
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SRCREV'><filename>SRCREV</filename></ulink>
-                    is set to
-                    ${<ulink url='&YOCTO_DOCS_REF_URL;#var-AUTOREV'><filename>AUTOREV</filename></ulink>}.
-                    Here is an example assuming
-                    <filename>buildhistory/packages/qemux86-poky-linux/linux-yocto/latest_srcrev</filename>):
-                    <literallayout class='monospaced'>
-     # SRCREV_machine = "38cd560d5022ed2dbd1ab0dca9642e47c98a0aa1"
-     SRCREV_machine = "38cd560d5022ed2dbd1ab0dca9642e47c98a0aa1"
-     # SRCREV_meta = "a227f20eff056e511d504b2e490f3774ab260d6f"
-     SRCREV_meta = "a227f20eff056e511d504b2e490f3774ab260d6f"
-                    </literallayout>
-                    You can use the
-                    <filename>buildhistory-collect-srcrevs</filename>
-                    command with the <filename>-a</filename> option to
-                    collect the stored <filename>SRCREV</filename> values
-                    from build history and report them in a format suitable for
-                    use in global configuration (e.g.,
-                    <filename>local.conf</filename> or a distro include file)
-                    to override floating <filename>AUTOREV</filename> values
-                    to a fixed set of revisions.
-                    Here is some example output from this command:
-                    <literallayout class='monospaced'>
-     $ buildhistory-collect-srcrevs -a
-     # i586-poky-linux
-     SRCREV_pn-glibc = "b8079dd0d360648e4e8de48656c5c38972621072"
-     SRCREV_pn-glibc-initial = "b8079dd0d360648e4e8de48656c5c38972621072"
-     SRCREV_pn-opkg-utils = "53274f087565fd45d8452c5367997ba6a682a37a"
-     SRCREV_pn-kmod = "fd56638aed3fe147015bfa10ed4a5f7491303cb4"
-     # x86_64-linux
-     SRCREV_pn-gtk-doc-stub-native = "1dea266593edb766d6d898c79451ef193eb17cfa"
-     SRCREV_pn-dtc-native = "65cc4d2748a2c2e6f27f1cf39e07a5dbabd80ebf"
-     SRCREV_pn-update-rc.d-native = "eca680ddf28d024954895f59a241a622dd575c11"
-     SRCREV_glibc_pn-cross-localedef-native = "b8079dd0d360648e4e8de48656c5c38972621072"
-     SRCREV_localedef_pn-cross-localedef-native = "c833367348d39dad7ba018990bfdaffaec8e9ed3"
-     SRCREV_pn-prelink-native = "faa069deec99bf61418d0bab831c83d7c1b797ca"
-     SRCREV_pn-opkg-utils-native = "53274f087565fd45d8452c5367997ba6a682a37a"
-     SRCREV_pn-kern-tools-native = "23345b8846fe4bd167efdf1bd8a1224b2ba9a5ff"
-     SRCREV_pn-kmod-native = "fd56638aed3fe147015bfa10ed4a5f7491303cb4"
-     # qemux86-poky-linux
-     SRCREV_machine_pn-linux-yocto = "38cd560d5022ed2dbd1ab0dca9642e47c98a0aa1"
-     SRCREV_meta_pn-linux-yocto = "a227f20eff056e511d504b2e490f3774ab260d6f"
-     # all-poky-linux
-     SRCREV_pn-update-rc.d = "eca680ddf28d024954895f59a241a622dd575c11"
-                    </literallayout>
-                    <note>
-                        Here are some notes on using the
-                        <filename>buildhistory-collect-srcrevs</filename>
-                        command:
-                        <itemizedlist>
-                            <listitem><para>
-                                By default, only values where the
-                                <filename>SRCREV</filename> was not hardcoded
-                                (usually when <filename>AUTOREV</filename>
-                                is used) are reported.
-                                Use the <filename>-a</filename> option to
-                                see all <filename>SRCREV</filename> values.
-                                </para></listitem>
-                            <listitem><para>
-                                The output statements might not have any effect
-                                if overrides are applied elsewhere in the
-                                build system configuration.
-                                Use the <filename>-f</filename> option to add
-                                the <filename>forcevariable</filename> override
-                                to each output line if you need to work around
-                                this restriction.
-                                </para></listitem>
-                            <listitem><para>
-                                The script does apply special handling when
-                                building for multiple machines.
-                                However, the script does place a comment before
-                                each set of values that specifies which
-                                triplet to which they belong as previously
-                                shown (e.g.,
-                                <filename>i586-poky-linux</filename>).
-                                </para></listitem>
-                        </itemizedlist>
-                    </note>
-                </para>
-            </section>
-
-            <section id='build-history-image-information'>
-                <title>Build History Image Information</title>
-
-                <para>
-                    The files produced for each image are as follows:
-                    <itemizedlist>
-                        <listitem><para>
-                            <filename>image-files:</filename>
-                            A directory containing selected files from the root
-                            filesystem.
-                            The files are defined by
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-BUILDHISTORY_IMAGE_FILES'><filename>BUILDHISTORY_IMAGE_FILES</filename></ulink>.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>build-id.txt:</filename>
-                            Human-readable information about the build
-                            configuration and metadata source revisions.
-                            This file contains the full build header as printed
-                            by BitBake.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>*.dot:</filename>
-                            Dependency graphs for the image that are
-                            compatible with <filename>graphviz</filename>.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>files-in-image.txt:</filename>
- 	                        A list of files in the image with permissions,
-                            owner, group, size, and symlink information.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>image-info.txt:</filename>
-                            A text file containing name-value pairs with
-                            information about the image.
-                            See the following listing example for more
-                            information.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>installed-package-names.txt:</filename>
-                            A list of installed packages by name only.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>installed-package-sizes.txt:</filename>
-                            A list of installed packages ordered by size.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>installed-packages.txt:</filename>
-                            A list of installed packages with full package
-                            filenames.
-                            </para></listitem>
-                    </itemizedlist>
-                    <note>
-                        Installed package information is able to be gathered
-                        and produced even if package management is disabled
-                        for the final image.
-                    </note>
-                </para>
-
-                <para>
-                    Here is an example of <filename>image-info.txt</filename>:
-                    <literallayout class='monospaced'>
-     DISTRO = poky
-     DISTRO_VERSION = 1.7
-     USER_CLASSES = buildstats image-mklibs image-prelink
-     IMAGE_CLASSES = image_types
-     IMAGE_FEATURES = debug-tweaks
-     IMAGE_LINGUAS =
-     IMAGE_INSTALL = packagegroup-core-boot run-postinsts
-     BAD_RECOMMENDATIONS =
-     NO_RECOMMENDATIONS =
-     PACKAGE_EXCLUDE =
-     ROOTFS_POSTPROCESS_COMMAND = write_package_manifest; license_create_manifest; \
-        write_image_manifest ; buildhistory_list_installed_image ; \
-        buildhistory_get_image_installed ; ssh_allow_empty_password;  \
-        postinst_enable_logging; rootfs_update_timestamp ; ssh_disable_dns_lookup ;
-     IMAGE_POSTPROCESS_COMMAND =   buildhistory_get_imageinfo ;
-     IMAGESIZE = 6900
-                    </literallayout>
-                    Other than <filename>IMAGESIZE</filename>, which is the
-                    total size of the files in the image in Kbytes, the
-                    name-value pairs are variables that may have influenced the
-                    content of the image.
-                    This information is often useful when you are trying to
-                    determine why a change in the package or file
-                    listings has occurred.
-                </para>
-            </section>
-
-            <section id='using-build-history-to-gather-image-information-only'>
-                <title>Using Build History to Gather Image Information Only</title>
-
-                <para>
-                    As you can see, build history produces image information,
-                    including dependency graphs, so you can see why something
-                    was pulled into the image.
-                    If you are just interested in this information and not
-                    interested in collecting specific package or SDK
-                    information, you can enable writing only image information
-                    without any history by adding the following to your
-                    <filename>conf/local.conf</filename> file found in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>:
-                    <literallayout class='monospaced'>
-     INHERIT += "buildhistory"
-     BUILDHISTORY_COMMIT = "0"
-     BUILDHISTORY_FEATURES = "image"
-                    </literallayout>
-                    Here, you set the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-BUILDHISTORY_FEATURES'><filename>BUILDHISTORY_FEATURES</filename></ulink>
-                    variable to use the image feature only.
-                </para>
-            </section>
-
-            <section id='build-history-sdk-information'>
-                <title>Build History SDK Information</title>
-
-                <para>
-                    Build history collects similar information on the contents
-                    of SDKs
-                    (e.g. <filename>bitbake -c populate_sdk imagename</filename>)
-                    as compared to information it collects for images.
-                    Furthermore, this information differs depending on whether
-                    an extensible or standard SDK is being produced.
-                </para>
-
-                <para>
-                    The following list shows the files produced for SDKs:
-                    <itemizedlist>
-                        <listitem><para>
-                            <filename>files-in-sdk.txt:</filename>
-                            A list of files in the SDK with permissions,
-                            owner, group, size, and symlink information.
-                            This list includes both the host and target parts
-                            of the SDK.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>sdk-info.txt:</filename>
-                            A text file containing name-value pairs with
-                            information about the SDK.
-                            See the following listing example for more
-                            information.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>sstate-task-sizes.txt:</filename>
-                            A text file containing name-value pairs with
-                            information about task group sizes
-                            (e.g. <filename>do_populate_sysroot</filename>
-                            tasks have a total size).
-                            The <filename>sstate-task-sizes.txt</filename> file
-                            exists only when an extensible SDK is created.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>sstate-package-sizes.txt:</filename>
-                            A text file containing name-value pairs with
-                            information for the shared-state packages and
-                            sizes in the SDK.
-                            The <filename>sstate-package-sizes.txt</filename>
-                            file exists only when an extensible SDK is created.
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>sdk-files:</filename>
-                            A folder that contains copies of the files
-                            mentioned in
-                            <filename>BUILDHISTORY_SDK_FILES</filename> if the
-                            files are present in the output.
-                            Additionally, the default value of
-                            <filename>BUILDHISTORY_SDK_FILES</filename> is
-                            specific to the extensible SDK although you can
-                            set it differently if you would like to pull in
-                            specific files from the standard SDK.</para>
-
-                            <para>The default files are
-                            <filename>conf/local.conf</filename>,
-                            <filename>conf/bblayers.conf</filename>,
-                            <filename>conf/auto.conf</filename>,
-                            <filename>conf/locked-sigs.inc</filename>, and
-                            <filename>conf/devtool.conf</filename>.
-                            Thus, for an extensible SDK, these files get
-                            copied into the <filename>sdk-files</filename>
-                            directory.
-                            </para></listitem>
-                        <listitem><para>
-                            The following information appears under
-                            each of the <filename>host</filename>
-                            and <filename>target</filename> directories
-                            for the portions of the SDK that run on the host
-                            and on the target, respectively:
-                            <note>
-                                The following files for the most part are empty
-                                when producing an extensible SDK because this
-                                type of SDK is not constructed from packages
-                                as is the standard SDK.
-                            </note>
-                            <itemizedlist>
-                                <listitem><para>
-                                    <filename>depends.dot:</filename>
-                                    Dependency graph for the SDK that is
-                                    compatible with
-                                    <filename>graphviz</filename>.
-                                    </para></listitem>
-                                <listitem><para>
-                                    <filename>installed-package-names.txt:</filename>
-                                    A list of installed packages by name only.
-                                    </para></listitem>
-                                <listitem><para>
-                                    <filename>installed-package-sizes.txt:</filename>
-                                    A list of installed packages ordered by size.
-                                    </para></listitem>
-                                <listitem><para>
-                                    <filename>installed-packages.txt:</filename>
-                                    A list of installed packages with full
-                                    package filenames.
-                                    </para></listitem>
-                                </itemizedlist>
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    Here is an example of <filename>sdk-info.txt</filename>:
-                    <literallayout class='monospaced'>
-     DISTRO = poky
-     DISTRO_VERSION = 1.3+snapshot-20130327
-     SDK_NAME = poky-glibc-i686-arm
-     SDK_VERSION = 1.3+snapshot
-     SDKMACHINE =
-     SDKIMAGE_FEATURES = dev-pkgs dbg-pkgs
-     BAD_RECOMMENDATIONS =
-     SDKSIZE = 352712
-                    </literallayout>
-                    Other than <filename>SDKSIZE</filename>, which is the
-                    total size of the files in the SDK in Kbytes, the
-                    name-value pairs are variables that might have influenced
-                    the content of the SDK.
-                    This information is often useful when you are trying to
-                    determine why a change in the package or file listings
-                    has occurred.
-                </para>
-            </section>
-
-            <section id='examining-build-history-information'>
-                <title>Examining Build History Information</title>
-
-                <para>
-                    You can examine build history output from the command
-                    line or from a web interface.
-                </para>
-
-                <para>
-                    To see any changes that have occurred (assuming you have
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-BUILDHISTORY_COMMIT'><filename>BUILDHISTORY_COMMIT</filename></ulink><filename>&nbsp;= "1"</filename>),
-                    you can simply use any Git command that allows you to
-                    view the history of a repository.
-                    Here is one method:
-                    <literallayout class='monospaced'>
-      $ git log -p
-                    </literallayout>
-                    You need to realize, however, that this method does show
-                    changes that are not significant (e.g. a package's size
-                    changing by a few bytes).
-                </para>
-
-                <para>
-                    A command-line tool called
-                    <filename>buildhistory-diff</filename> does exist, though,
-                    that queries the Git repository and prints just the
-                    differences that might be significant in human-readable
-                    form.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     $ ~/poky/poky/scripts/buildhistory-diff . HEAD^
-     Changes to images/qemux86_64/glibc/core-image-minimal (files-in-image.txt):
-        /etc/anotherpkg.conf was added
-        /sbin/anotherpkg was added
-        * (installed-package-names.txt):
-        *   anotherpkg was added
-     Changes to images/qemux86_64/glibc/core-image-minimal (installed-package-names.txt):
-        anotherpkg was added
-     packages/qemux86_64-poky-linux/v86d: PACKAGES: added "v86d-extras"
-        * PR changed from "r0" to "r1"
-        * PV changed from "0.1.10" to "0.1.12"
-     packages/qemux86_64-poky-linux/v86d/v86d: PKGSIZE changed from 110579 to 144381 (+30%)
-        * PR changed from "r0" to "r1"
-        * PV changed from "0.1.10" to "0.1.12"
-                    </literallayout>
-                    <note>
-                        The <filename>buildhistory-diff</filename> tool
-                        requires the <filename>GitPython</filename> package.
-                        Be sure to install it using Pip3 as follows:
-                        <literallayout class='monospaced'>
-   $ pip3 install GitPython --user
-                        </literallayout>
-                        Alternatively, you can install
-                        <filename>python3-git</filename> using the appropriate
-                        distribution package manager (e.g.
-                        <filename>apt-get</filename>, <filename>dnf</filename>,
-                        or <filename>zipper</filename>).
-                    </note>
-                </para>
-
-                <para>
-                    To see changes to the build history using a web interface,
-                    follow the instruction in the <filename>README</filename>
-                    file here.
-                    <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/buildhistory-web/'></ulink>.
-                </para>
-
-                <para>
-                    Here is a sample screenshot of the interface:
-                    <imagedata fileref="figures/buildhistory-web.png" align="center" scalefit="1" width="130%" contentdepth="130%" />
-                </para>
-            </section>
-        </section>
-    </section>
-
-    <section id="performing-automated-runtime-testing">
-        <title>Performing Automated Runtime Testing</title>
-
-        <para>
-            The OpenEmbedded build system makes available a series of automated
-            tests for images to verify runtime functionality.
-            You can run these tests on either QEMU or actual target hardware.
-            Tests are written in Python making use of the
-            <filename>unittest</filename> module, and the majority of them
-            run commands on the target system over SSH.
-            This section describes how you set up the environment to use these
-            tests, run available tests, and write and add your own tests.
-        </para>
-
-        <para>
-            For information on the test and QA infrastructure available
-            within the Yocto Project, see the
-            "<ulink url='&YOCTO_DOCS_REF_URL;#testing-and-quality-assurance'>Testing and Quality Assurance</ulink>"
-            section in the Yocto Project Reference Manual.
-        </para>
-
-        <section id='enabling-tests'>
-            <title>Enabling Tests</title>
-
-            <para>
-                Depending on whether you are planning to run tests using
-                QEMU or on the hardware, you have to take
-                different steps to enable the tests.
-                See the following subsections for information on how to
-                enable both types of tests.
-            </para>
-
-            <section id='qemu-image-enabling-tests'>
-                <title>Enabling Runtime Tests on QEMU</title>
-
-                <para>
-                    In order to run tests, you need to do the following:
-                    <itemizedlist>
-                        <listitem><para><emphasis>Set up to avoid interaction
-                            with <filename>sudo</filename> for networking:</emphasis>
-                            To accomplish this, you must do one of the
-                            following:
-                            <itemizedlist>
-                                <listitem><para>Add
-                                    <filename>NOPASSWD</filename> for your user
-                                    in <filename>/etc/sudoers</filename> either for
-                                    all commands or just for
-                                    <filename>runqemu-ifup</filename>.
-                                    You must provide the full path as that can
-                                    change if you are using multiple clones of the
-                                    source repository.
-                                    <note>
-                                        On some distributions, you also need to
-                                        comment out "Defaults requiretty" in
-                                        <filename>/etc/sudoers</filename>.
-                                    </note></para></listitem>
-                                <listitem><para>Manually configure a tap interface
-                                    for your system.</para></listitem>
-                                <listitem><para>Run as root the script in
-                                    <filename>scripts/runqemu-gen-tapdevs</filename>,
-                                    which should generate a list of tap devices.
-                                    This is the option typically chosen for
-                                    Autobuilder-type environments.
-                                    <note><title>Notes</title>
-                                        <itemizedlist>
-                                            <listitem><para>
-                                                Be sure to use an absolute path
-                                                when calling this script
-                                                with sudo.
-                                                </para></listitem>
-                                            <listitem><para>
-                                                The package recipe
-                                                <filename>qemu-helper-native</filename>
-                                                is required to run this script.
-                                                Build the package using the
-                                                following command:
-                                                <literallayout class='monospaced'>
-     $ bitbake qemu-helper-native
-                                                </literallayout>
-                                                </para></listitem>
-                                        </itemizedlist>
-                                    </note>
-                                    </para></listitem>
-                            </itemizedlist></para></listitem>
-                        <listitem><para><emphasis>Set the
-                            <filename>DISPLAY</filename> variable:</emphasis>
-                            You need to set this variable so that you have an X
-                            server available (e.g. start
-                            <filename>vncserver</filename> for a headless machine).
-                            </para></listitem>
-                        <listitem><para><emphasis>Be sure your host's firewall
-                            accepts incoming connections from
-                            192.168.7.0/24:</emphasis>
-                            Some of the tests (in particular DNF tests) start
-                            an HTTP server on a random high number port,
-                            which is used to serve files to the target.
-                            The DNF module serves
-                            <filename>${WORKDIR}/oe-rootfs-repo</filename>
-                            so it can run DNF channel commands.
-                            That means your host's firewall
-                            must accept incoming connections from 192.168.7.0/24,
-                            which is the default IP range used for tap devices
-                            by <filename>runqemu</filename>.</para></listitem>
-                        <listitem><para><emphasis>Be sure your host has the
-                            correct packages installed:</emphasis>
-                            Depending your host's distribution, you need
-                            to have the following packages installed:
-                            <itemizedlist>
-                                <listitem><para>Ubuntu and Debian:
-                                    <filename>sysstat</filename> and
-                                    <filename>iproute2</filename>
-                                    </para></listitem>
-                                <listitem><para>OpenSUSE:
-                                    <filename>sysstat</filename> and
-                                    <filename>iproute2</filename>
-                                    </para></listitem>
-                                <listitem><para>Fedora:
-                                    <filename>sysstat</filename> and
-                                    <filename>iproute</filename>
-                                    </para></listitem>
-                                <listitem><para>CentOS:
-                                    <filename>sysstat</filename> and
-                                    <filename>iproute</filename>
-                                    </para></listitem>
-                            </itemizedlist>
-                        </para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    Once you start running the tests, the following happens:
-                    <orderedlist>
-                        <listitem><para>A copy of the root filesystem is written
-                            to <filename>${WORKDIR}/testimage</filename>.
-                            </para></listitem>
-                        <listitem><para>The image is booted under QEMU using the
-                            standard <filename>runqemu</filename> script.
-                            </para></listitem>
-                        <listitem><para>A default timeout of 500 seconds occurs
-                            to allow for the boot process to reach the login prompt.
-                            You can change the timeout period by setting
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-TEST_QEMUBOOT_TIMEOUT'><filename>TEST_QEMUBOOT_TIMEOUT</filename></ulink>
-                            in the <filename>local.conf</filename> file.
-                            </para></listitem>
-                        <listitem><para>Once the boot process is reached and the
-                            login prompt appears, the tests run.
-                            The full boot log is written to
-                            <filename>${WORKDIR}/testimage/qemu_boot_log</filename>.
-                            </para></listitem>
-                        <listitem><para>Each test module loads in the order found
-                            in <filename>TEST_SUITES</filename>.
-                            You can find the full output of the commands run over
-                            SSH in
-                            <filename>${WORKDIR}/testimgage/ssh_target_log</filename>.
-                            </para></listitem>
-                        <listitem><para>If no failures occur, the task running the
-                            tests ends successfully.
-                            You can find the output from the
-                            <filename>unittest</filename> in the task log at
-                            <filename>${WORKDIR}/temp/log.do_testimage</filename>.
-                            </para></listitem>
-                    </orderedlist>
-                </para>
-            </section>
-
-            <section id='hardware-image-enabling-tests'>
-                <title>Enabling Runtime Tests on Hardware</title>
-
-                <para>
-                    The OpenEmbedded build system can run tests on real
-                    hardware, and for certain devices it can also deploy
-                    the image to be tested onto the device beforehand.
-                </para>
-
-                <para>
-                    For automated deployment, a "master image" is installed
-                    onto the hardware once as part of setup.
-                    Then, each time tests are to be run, the following
-                    occurs:
-                    <orderedlist>
-                        <listitem><para>The master image is booted into and
-                            used to write the image to be tested to
-                            a second partition.
-                            </para></listitem>
-                        <listitem><para>The device is then rebooted using an
-                            external script that you need to provide.
-                            </para></listitem>
-                        <listitem><para>The device boots into the image to be
-                            tested.
-                            </para></listitem>
-                    </orderedlist>
-                </para>
-
-                <para>
-                    When running tests (independent of whether the image
-                    has been deployed automatically or not), the device is
-                    expected to be connected to a network on a
-                    pre-determined IP address.
-                    You can either use static IP addresses written into
-                    the image, or set the image to use DHCP and have your
-                    DHCP server on the test network assign a known IP address
-                    based on the MAC address of the device.
-                </para>
-
-                <para>
-                    In order to run tests on hardware, you need to set
-                    <filename>TEST_TARGET</filename> to an appropriate value.
-                    For QEMU, you do not have to change anything, the default
-                    value is "qemu".
-                    For running tests on hardware, the following options exist:
-                    <itemizedlist>
-                        <listitem><para><emphasis>"simpleremote":</emphasis>
-                            Choose "simpleremote" if you are going to
-                            run tests on a target system that is already
-                            running the image to be tested and is available
-                            on the network.
-                            You can use "simpleremote" in conjunction
-                            with either real hardware or an image running
-                            within a separately started QEMU or any
-                            other virtual machine manager.
-                            </para></listitem>
-                        <listitem><para><emphasis>"SystemdbootTarget":</emphasis>
-                            Choose "SystemdbootTarget" if your hardware is
-                            an EFI-based machine with
-                            <filename>systemd-boot</filename> as bootloader and
-                            <filename>core-image-testmaster</filename>
-                            (or something similar) is installed.
-                            Also, your hardware under test must be in a
-                            DHCP-enabled network that gives it the same IP
-                            address for each reboot.</para>
-                            <para>If you choose "SystemdbootTarget", there are
-                            additional requirements and considerations.
-                            See the
-                            "<link linkend='selecting-systemdboottarget'>Selecting SystemdbootTarget</link>"
-                            section, which follows, for more information.
-                            </para></listitem>
-                        <listitem><para><emphasis>"BeagleBoneTarget":</emphasis>
-                            Choose "BeagleBoneTarget" if you are deploying
-                            images and running tests on the BeagleBone
-                            "Black" or original "White" hardware.
-                            For information on how to use these tests, see the
-                            comments at the top of the BeagleBoneTarget
-                            <filename>meta-yocto-bsp/lib/oeqa/controllers/beaglebonetarget.py</filename>
-                            file.
-                            </para></listitem>
-                        <listitem><para><emphasis>"EdgeRouterTarget":</emphasis>
-                            Choose "EdgeRouterTarget" is you are deploying
-                            images and running tests on the Ubiquiti Networks
-                            EdgeRouter Lite.
-                            For information on how to use these tests, see the
-                            comments at the top of the EdgeRouterTarget
-                            <filename>meta-yocto-bsp/lib/oeqa/controllers/edgeroutertarget.py</filename>
-                            file.
-                            </para></listitem>
-                        <listitem><para><emphasis>"GrubTarget":</emphasis>
-                            Choose the "supports deploying images and running
-                            tests on any generic PC that boots using GRUB.
-                            For information on how to use these tests, see the
-                            comments at the top of the GrubTarget
-                            <filename>meta-yocto-bsp/lib/oeqa/controllers/grubtarget.py</filename>
-                            file.
-                            </para></listitem>
-                        <listitem><para><emphasis>"<replaceable>your-target</replaceable>":</emphasis>
-                            Create your own custom target if you want to run
-                            tests when you are deploying images and running
-                            tests on a custom machine within your BSP layer.
-                            To do this, you need to add a Python unit that
-                            defines the target class under
-                            <filename>lib/oeqa/controllers/</filename> within
-                            your layer.
-                            You must also provide an empty
-                            <filename>__init__.py</filename>.
-                            For examples, see files in
-                            <filename>meta-yocto-bsp/lib/oeqa/controllers/</filename>.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-
-            <section id='selecting-systemdboottarget'>
-                <title>Selecting SystemdbootTarget</title>
-
-                <para>
-                    If you did not set <filename>TEST_TARGET</filename> to
-                    "SystemdbootTarget", then you do not need any information
-                    in this section.
-                    You can skip down to the
-                    "<link linkend='qemu-image-running-tests'>Running Tests</link>"
-                    section.
-                </para>
-
-                <para>
-                    If you did set <filename>TEST_TARGET</filename> to
-                    "SystemdbootTarget", you also need to perform a one-time
-                    setup of your master image by doing the following:
-                    <orderedlist>
-                        <listitem><para><emphasis>Set <filename>EFI_PROVIDER</filename>:</emphasis>
-                            Be sure that <filename>EFI_PROVIDER</filename>
-                            is as follows:
-                            <literallayout class='monospaced'>
-     EFI_PROVIDER = "systemd-boot"
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para><emphasis>Build the master image:</emphasis>
-                            Build the <filename>core-image-testmaster</filename>
-                            image.
-                            The <filename>core-image-testmaster</filename>
-                            recipe is provided as an example for a
-                            "master" image and you can customize the image
-                            recipe as you would any other recipe.
-                            </para>
-                            <para>Here are the image recipe requirements:
-                            <itemizedlist>
-                                <listitem><para>Inherits
-                                    <filename>core-image</filename>
-                                    so that kernel modules are installed.
-                                    </para></listitem>
-                                <listitem><para>Installs normal linux utilities
-                                    not busybox ones (e.g.
-                                    <filename>bash</filename>,
-                                    <filename>coreutils</filename>,
-                                    <filename>tar</filename>,
-                                    <filename>gzip</filename>, and
-                                    <filename>kmod</filename>).
-                                    </para></listitem>
-                                <listitem><para>Uses a custom
-                                    Initial RAM Disk (initramfs) image with a
-                                    custom installer.
-                                    A normal image that you can install usually
-                                    creates a single rootfs partition.
-                                    This image uses another installer that
-                                    creates a specific partition layout.
-                                    Not all Board Support Packages (BSPs)
-                                    can use an installer.
-                                    For such cases, you need to manually create
-                                    the following partition layout on the
-                                    target:
-                                    <itemizedlist>
-                                        <listitem><para>First partition mounted
-                                            under <filename>/boot</filename>,
-                                            labeled "boot".
-                                            </para></listitem>
-                                        <listitem><para>The main rootfs
-                                            partition where this image gets
-                                            installed, which is mounted under
-                                            <filename>/</filename>.
-                                            </para></listitem>
-                                        <listitem><para>Another partition
-                                            labeled "testrootfs" where test
-                                            images get deployed.
-                                            </para></listitem>
-                                    </itemizedlist>
-                                    </para></listitem>
-                            </itemizedlist>
-                            </para></listitem>
-                        <listitem><para><emphasis>Install image:</emphasis>
-                            Install the image that you just built on the target
-                            system.
-                            </para></listitem>
-                    </orderedlist>
-                </para>
-
-                <para>
-                    The final thing you need to do when setting
-                    <filename>TEST_TARGET</filename> to "SystemdbootTarget" is
-                    to set up the test image:
-                    <orderedlist>
-                        <listitem><para><emphasis>Set up your <filename>local.conf</filename> file:</emphasis>
-                            Make sure you have the following statements in
-                            your <filename>local.conf</filename> file:
-                            <literallayout class='monospaced'>
-     IMAGE_FSTYPES += "tar.gz"
-     INHERIT += "testimage"
-     TEST_TARGET = "SystemdbootTarget"
-     TEST_TARGET_IP = "192.168.2.3"
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para><emphasis>Build your test image:</emphasis>
-                            Use BitBake to build the image:
-                            <literallayout class='monospaced'>
-     $ bitbake core-image-sato
-                            </literallayout>
-                            </para></listitem>
-                    </orderedlist>
-                </para>
-            </section>
-
-            <section id='power-control'>
-                <title>Power Control</title>
-
-                <para>
-                    For most hardware targets other than "simpleremote",
-                    you can control power:
-                    <itemizedlist>
-                        <listitem><para>
-                            You can use
-                            <filename>TEST_POWERCONTROL_CMD</filename>
-                            together with
-                            <filename>TEST_POWERCONTROL_EXTRA_ARGS</filename>
-                            as a command that runs on the host and does power
-                            cycling.
-                            The test code passes one argument to that command:
-                            off, on or cycle (off then on).
-                            Here is an example that could appear in your
-                            <filename>local.conf</filename> file:
-                            <literallayout class='monospaced'>
-     TEST_POWERCONTROL_CMD = "powercontrol.exp test 10.11.12.1 nuc1"
-                            </literallayout>
-                            In this example, the expect script does the
-                            following:
-                            <literallayout class='monospaced'>
-     ssh test@10.11.12.1 "pyctl nuc1 <replaceable>arg</replaceable>"
-                            </literallayout>
-                            It then runs a Python script that controls power
-                            for a label called <filename>nuc1</filename>.
-                            <note>
-                                You need to customize
-                                <filename>TEST_POWERCONTROL_CMD</filename>
-                                and
-                                <filename>TEST_POWERCONTROL_EXTRA_ARGS</filename>
-                                for your own setup.
-                                The one requirement is that it accepts
-                                "on", "off", and "cycle" as the last argument.
-                            </note>
-                            </para></listitem>
-                        <listitem><para>
-                            When no command is defined, it connects to the
-                            device over SSH and uses the classic reboot command
-                            to reboot the device.
-                            Classic reboot is fine as long as the machine
-                            actually reboots (i.e. the SSH test has not
-                            failed).
-                            It is useful for scenarios where you have a simple
-                            setup, typically with a single board, and where
-                            some manual interaction is okay from time to time.
-                            </para></listitem>
-                    </itemizedlist>
-                    If you have no hardware to automatically perform power
-                    control but still wish to experiment with automated
-                    hardware testing, you can use the dialog-power-control
-                    script that shows a dialog prompting you to perform the
-                    required power action.
-                    This script requires either KDialog or Zenity to be
-                    installed.
-                    To use this script, set the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-TEST_POWERCONTROL_CMD'><filename>TEST_POWERCONTROL_CMD</filename></ulink>
-                    variable as follows:
-                    <literallayout class='monospaced'>
-     TEST_POWERCONTROL_CMD = "${COREBASE}/scripts/contrib/dialog-power-control"
-                    </literallayout>
-                </para>
-            </section>
-
-            <section id='serial-console-connection'>
-                <title>Serial Console Connection</title>
-
-                <para>
-                    For test target classes requiring a serial console
-                    to interact with the bootloader (e.g. BeagleBoneTarget,
-                    EdgeRouterTarget, and GrubTarget), you need to
-                    specify a command to use to connect to the serial console
-                    of the target machine by using the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-TEST_SERIALCONTROL_CMD'><filename>TEST_SERIALCONTROL_CMD</filename></ulink>
-                    variable and optionally the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-TEST_SERIALCONTROL_EXTRA_ARGS'><filename>TEST_SERIALCONTROL_EXTRA_ARGS</filename></ulink>
-                    variable.
-                </para>
-
-                <para>
-                    These cases could be a serial terminal program if the
-                    machine is connected to a local serial port, or a
-                    <filename>telnet</filename> or
-                    <filename>ssh</filename> command connecting to a remote
-                    console server.
-                    Regardless of the case, the command simply needs to
-                    connect to the serial console and forward that connection
-                    to standard input and output as any normal terminal
-                    program does.
-                    For example, to use the picocom terminal program on
-                    serial device <filename>/dev/ttyUSB0</filename>
-                    at 115200bps, you would set the variable as follows:
-                    <literallayout class='monospaced'>
-     TEST_SERIALCONTROL_CMD = "picocom /dev/ttyUSB0 -b 115200"
-                    </literallayout>
-                    For local devices where the serial port device disappears
-                    when the device reboots, an additional "serdevtry" wrapper
-                    script is provided.
-                    To use this wrapper, simply prefix the terminal command
-                    with
-                    <filename>${COREBASE}/scripts/contrib/serdevtry</filename>:
-                    <literallayout class='monospaced'>
-     TEST_SERIALCONTROL_CMD = "${COREBASE}/scripts/contrib/serdevtry picocom -b
-115200 /dev/ttyUSB0"
-                    </literallayout>
-                </para>
-            </section>
-        </section>
-
-        <section id="qemu-image-running-tests">
-            <title>Running Tests</title>
-
-            <para>
-                You can start the tests automatically or manually:
-                <itemizedlist>
-                    <listitem><para><emphasis>Automatically running tests:</emphasis>
-                        To run the tests automatically after the
-                        OpenEmbedded build system successfully creates an image,
-                        first set the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-TESTIMAGE_AUTO'><filename>TESTIMAGE_AUTO</filename></ulink>
-                        variable to "1" in your <filename>local.conf</filename>
-                        file in the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>:
-                        <literallayout class='monospaced'>
-     TESTIMAGE_AUTO = "1"
-                        </literallayout>
-                        Next, build your image.
-                        If the image successfully builds, the tests run:
-                        <literallayout class='monospaced'>
-     bitbake core-image-sato
-                        </literallayout></para></listitem>
-                    <listitem><para><emphasis>Manually running tests:</emphasis>
-                        To manually run the tests, first globally inherit the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-testimage*'><filename>testimage</filename></ulink>
-                        class by editing your <filename>local.conf</filename>
-                        file:
-                        <literallayout class='monospaced'>
-    INHERIT += "testimage"
-                        </literallayout>
-                        Next, use BitBake to run the tests:
-                        <literallayout class='monospaced'>
-     bitbake -c testimage <replaceable>image</replaceable>
-                        </literallayout></para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                All test files reside in
-                <filename>meta/lib/oeqa/runtime</filename> in the
-                <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>.
-                A test name maps directly to a Python module.
-                Each test module may contain a number of individual tests.
-                Tests are usually grouped together by the area
-                tested (e.g tests for systemd reside in
-                <filename>meta/lib/oeqa/runtime/systemd.py</filename>).
-            </para>
-
-            <para>
-                You can add tests to any layer provided you place them in the
-                proper area and you extend
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-BBPATH'><filename>BBPATH</filename></ulink>
-                in the <filename>local.conf</filename> file as normal.
-                Be sure that tests reside in
-                <filename><replaceable>layer</replaceable>/lib/oeqa/runtime</filename>.
-                <note>
-                    Be sure that module names do not collide with module names
-                    used in the default set of test modules in
-                    <filename>meta/lib/oeqa/runtime</filename>.
-                </note>
-            </para>
-
-            <para>
-                You can change the set of tests run by appending or overriding
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-TEST_SUITES'><filename>TEST_SUITES</filename></ulink>
-                variable in <filename>local.conf</filename>.
-                Each name in <filename>TEST_SUITES</filename> represents a
-                required test for the image.
-                Test modules named within <filename>TEST_SUITES</filename>
-                cannot be skipped even if a test is not suitable for an image
-                (e.g. running the RPM tests on an image without
-                <filename>rpm</filename>).
-                Appending "auto" to <filename>TEST_SUITES</filename> causes the
-                build system to try to run all tests that are suitable for the
-                image (i.e. each test module may elect to skip itself).
-            </para>
-
-            <para>
-                The order you list tests in <filename>TEST_SUITES</filename>
-                is important and influences test dependencies.
-                Consequently, tests that depend on other tests should be added
-                after the test on which they depend.
-                For example, since the <filename>ssh</filename> test
-                depends on the
-                <filename>ping</filename> test, "ssh" needs to come after
-                "ping" in the list.
-                The test class provides no re-ordering or dependency handling.
-                <note>
-                    Each module can have multiple classes with multiple test
-                    methods.
-                    And, Python <filename>unittest</filename> rules apply.
-                </note>
-            </para>
-
-            <para>
-                Here are some things to keep in mind when running tests:
-                <itemizedlist>
-                    <listitem><para>The default tests for the image are defined
-                        as:
-                        <literallayout class='monospaced'>
-     DEFAULT_TEST_SUITES_pn-<replaceable>image</replaceable> = "ping ssh df connman syslog xorg scp vnc date rpm dnf dmesg"
-                        </literallayout></para></listitem>
-                    <listitem><para>Add your own test to the list of the
-                        by using the following:
-                        <literallayout class='monospaced'>
-     TEST_SUITES_append = " mytest"
-                        </literallayout></para></listitem>
-                    <listitem><para>Run a specific list of tests as follows:
-                        <literallayout class='monospaced'>
-     TEST_SUITES = "test1 test2 test3"
-                        </literallayout>
-                        Remember, order is important.
-                        Be sure to place a test that is dependent on another test
-                        later in the order.</para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id="exporting-tests">
-            <title>Exporting Tests</title>
-
-            <para>
-                You can export tests so that they can run independently of
-                the build system.
-                Exporting tests is required if you want to be able to hand
-                the test execution off to a scheduler.
-                You can only export tests that are defined in
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-TEST_SUITES'><filename>TEST_SUITES</filename></ulink>.
-            </para>
-
-            <para>
-                If your image is already built, make sure the following are set
-                in your <filename>local.conf</filename> file:
-                <literallayout class='monospaced'>
-     INHERIT +="testexport"
-     TEST_TARGET_IP = "<replaceable>IP-address-for-the-test-target</replaceable>"
-     TEST_SERVER_IP = "<replaceable>IP-address-for-the-test-server</replaceable>"
-                </literallayout>
-                You can then export the tests with the following BitBake
-                command form:
-                <literallayout class='monospaced'>
-     $ bitbake <replaceable>image</replaceable> -c testexport
-                </literallayout>
-                Exporting the tests places them in the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                in
-                <filename>tmp/testexport/</filename><replaceable>image</replaceable>,
-                which is controlled by the
-                <filename>TEST_EXPORT_DIR</filename> variable.
-            </para>
-
-            <para>
-                You can now run the tests outside of the build environment:
-                <literallayout class='monospaced'>
-     $ cd tmp/testexport/<replaceable>image</replaceable>
-     $ ./runexported.py testdata.json
-                </literallayout>
-            </para>
-
-            <para>
-                Here is a complete example that shows IP addresses and uses
-                the <filename>core-image-sato</filename> image:
-                <literallayout class='monospaced'>
-     INHERIT +="testexport"
-     TEST_TARGET_IP = "192.168.7.2"
-     TEST_SERVER_IP = "192.168.7.1"
-                </literallayout>
-                Use BitBake to export the tests:
-                <literallayout class='monospaced'>
-     $ bitbake core-image-sato -c testexport
-                </literallayout>
-                Run the tests outside of the build environment using the
-                following:
-                <literallayout class='monospaced'>
-     $ cd tmp/testexport/core-image-sato
-     $ ./runexported.py testdata.json
-                </literallayout>
-            </para>
-        </section>
-
-        <section id="qemu-image-writing-new-tests">
-            <title>Writing New Tests</title>
-
-            <para>
-                As mentioned previously, all new test files need to be in the
-                proper place for the build system to find them.
-                New tests for additional functionality outside of the core
-                should be added to the layer that adds the functionality, in
-                <filename><replaceable>layer</replaceable>/lib/oeqa/runtime</filename>
-                (as long as
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-BBPATH'><filename>BBPATH</filename></ulink>
-                is extended in the layer's
-                <filename>layer.conf</filename> file as normal).
-                Just remember the following:
-                <itemizedlist>
-                    <listitem><para>Filenames need to map directly to test
-                        (module) names.
-                        </para></listitem>
-                    <listitem><para>Do not use module names that
-                        collide with existing core tests.
-                        </para></listitem>
-                    <listitem><para>Minimally, an empty
-                        <filename>__init__.py</filename> file must exist
-                        in the runtime directory.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                To create a new test, start by copying an existing module
-                (e.g. <filename>syslog.py</filename> or
-                <filename>gcc.py</filename> are good ones to use).
-                Test modules can use code from
-                <filename>meta/lib/oeqa/utils</filename>, which are helper
-                classes.
-            </para>
-
-            <note>
-                Structure shell commands such that you rely on them and they
-                return a single code for success.
-                Be aware that sometimes you will need to parse the output.
-                See the <filename>df.py</filename> and
-                <filename>date.py</filename> modules for examples.
-            </note>
-
-            <para>
-                You will notice that all test classes inherit
-                <filename>oeRuntimeTest</filename>, which is found in
-                <filename>meta/lib/oetest.py</filename>.
-                This base class offers some helper attributes, which are
-                described in the following sections:
-            </para>
-
-            <section id='qemu-image-writing-tests-class-methods'>
-                <title>Class Methods</title>
-
-                <para>
-                    Class methods are as follows:
-                    <itemizedlist>
-                        <listitem><para><emphasis><filename>hasPackage(pkg)</filename>:</emphasis>
-                            Returns "True" if <filename>pkg</filename> is in the
-                            installed package list of the image, which is based
-                            on the manifest file that is generated during the
-                            <filename>do_rootfs</filename> task.
-                            </para></listitem>
-                        <listitem><para><emphasis><filename>hasFeature(feature)</filename>:</emphasis>
-                            Returns "True" if the feature is in
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></ulink>
-                            or
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></ulink>.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-
-            <section id='qemu-image-writing-tests-class-attributes'>
-                <title>Class Attributes</title>
-
-                <para>
-                    Class attributes are as follows:
-                    <itemizedlist>
-                        <listitem><para><emphasis><filename>pscmd</filename>:</emphasis>
-                            Equals "ps -ef" if <filename>procps</filename> is
-                            installed in the image.
-                            Otherwise, <filename>pscmd</filename> equals
-                            "ps" (busybox).
-                            </para></listitem>
-                        <listitem><para><emphasis><filename>tc</filename>:</emphasis>
-                            The called test context, which gives access to the
-                            following attributes:
-                            <itemizedlist>
-                                <listitem><para><emphasis><filename>d</filename>:</emphasis>
-                                    The BitBake datastore, which allows you to
-                                    use stuff such as
-                                    <filename>oeRuntimeTest.tc.d.getVar("VIRTUAL-RUNTIME_init_manager")</filename>.
-                                    </para></listitem>
-                                <listitem><para><emphasis><filename>testslist</filename> and <filename>testsrequired</filename>:</emphasis>
-                                    Used internally.
-                                    The tests do not need these.
-                                    </para></listitem>
-                                <listitem><para><emphasis><filename>filesdir</filename>:</emphasis>
-                                    The absolute path to
-                                    <filename>meta/lib/oeqa/runtime/files</filename>,
-                                    which contains helper files for tests meant
-                                    for copying on the target such as small
-                                    files written in C for compilation.
-                                    </para></listitem>
-                                <listitem><para><emphasis><filename>target</filename>:</emphasis>
-                                    The target controller object used to deploy
-                                    and start an image on a particular target
-                                    (e.g. Qemu, SimpleRemote, and
-                                    SystemdbootTarget).
-                                    Tests usually use the following:
-                                    <itemizedlist>
-                                        <listitem><para><emphasis><filename>ip</filename>:</emphasis>
-                                            The target's IP address.
-                                            </para></listitem>
-                                        <listitem><para><emphasis><filename>server_ip</filename>:</emphasis>
-                                            The host's IP address, which is
-                                            usually used by the DNF test
-                                            suite.
-                                            </para></listitem>
-                                        <listitem><para><emphasis><filename>run(cmd, timeout=None)</filename>:</emphasis>
-                                            The single, most used method.
-                                            This command is a wrapper for:
-                                            <filename>ssh root@host "cmd"</filename>.
-                                            The command returns a tuple:
-                                            (status, output), which are what
-                                            their names imply - the return code
-                                            of "cmd" and whatever output
-                                            it produces.
-                                            The optional timeout argument
-                                            represents the number of seconds the
-                                            test should wait for "cmd" to
-                                            return.
-                                            If the argument is "None", the
-                                            test uses the default instance's
-                                            timeout period, which is 300
-                                            seconds.
-                                            If the argument is "0", the test
-                                            runs until the command returns.
-                                            </para></listitem>
-                                        <listitem><para><emphasis><filename>copy_to(localpath, remotepath)</filename>:</emphasis>
-                                            <filename>scp localpath root@ip:remotepath</filename>.
-                                            </para></listitem>
-                                        <listitem><para><emphasis><filename>copy_from(remotepath, localpath)</filename>:</emphasis>
-                                            <filename>scp root@host:remotepath localpath</filename>.
-                                            </para></listitem>
-                                    </itemizedlist></para></listitem>
-                            </itemizedlist></para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-
-            <section id='qemu-image-writing-tests-instance-attributes'>
-                <title>Instance Attributes</title>
-
-                <para>
-                    A single instance attribute exists, which is
-                    <filename>target</filename>.
-                    The <filename>target</filename> instance attribute is
-                    identical to the class attribute of the same name, which
-                    is described in the previous section.
-                    This attribute exists as both an instance and class
-                    attribute so tests can use
-                    <filename>self.target.run(cmd)</filename> in instance
-                    methods instead of
-                    <filename>oeRuntimeTest.tc.target.run(cmd)</filename>.
-                </para>
-            </section>
-        </section>
-
-        <section id='installing-packages-in-the-dut-without-the-package-manager'>
-            <title>Installing Packages in the DUT Without the Package Manager</title>
-
-            <para>
-                When a test requires a package built by BitBake, it is possible
-                to install that package.
-                Installing the package does not require a package manager be
-                installed in the device under test (DUT).
-                It does, however, require an SSH connection and the target must
-                be using the <filename>sshcontrol</filename> class.
-                <note>
-                    This method uses <filename>scp</filename> to copy files
-                    from the host to the target, which causes permissions and
-                    special attributes to be lost.
-                </note>
-            </para>
-
-            <para>
-                A JSON file is used to define the packages needed by a test.
-                This file must be in the same path as the file used to define
-                the tests.
-                Furthermore, the filename must map directly to the test
-                module name with a <filename>.json</filename> extension.
-            </para>
-
-            <para>
-                The JSON file must include an object with the test name as
-                keys of an object or an array.
-                This object (or array of objects) uses the following data:
-                <itemizedlist>
-                    <listitem><para>"pkg" - A mandatory string that is the
-                        name of the package to be installed.
-                        </para></listitem>
-                    <listitem><para>"rm" - An optional boolean, which defaults
-                        to "false", that specifies to remove the package after
-                        the test.
-                        </para></listitem>
-                    <listitem><para>"extract" - An optional boolean, which
-                        defaults to "false", that specifies if the package must
-                        be extracted from the package format.
-                        When set to "true", the package is not automatically
-                        installed into the DUT.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                Following is an example JSON file that handles test "foo"
-                installing package "bar" and test "foobar" installing
-                packages "foo" and "bar".
-                Once the test is complete, the packages are removed from the
-                DUT.
-                <literallayout class='monospaced'>
-     {
-         "foo": {
-             "pkg": "bar"
-         },
-         "foobar": [
-             {
-                 "pkg": "foo",
-                 "rm": true
-             },
-             {
-                 "pkg": "bar",
-                 "rm": true
-             }
-         ]
-     }
-                </literallayout>
-            </para>
-        </section>
-    </section>
-
-    <section id='usingpoky-debugging-tools-and-techniques'>
-        <title>Debugging Tools and Techniques</title>
-
-        <para>
-            The exact method for debugging build failures depends on the nature
-            of the problem and on the system's area from which the bug
-            originates.
-            Standard debugging practices such as comparison against the last
-            known working version with examination of the changes and the
-            re-application of steps to identify the one causing the problem are
-            valid for the Yocto Project just as they are for any other system.
-            Even though it is impossible to detail every possible potential
-            failure, this section provides some general tips to aid in
-            debugging given a variety of situations.
-            <note><title>Tip</title>
-                A useful feature for debugging is the error reporting tool.
-                Configuring the Yocto Project to use this tool causes the
-                OpenEmbedded build system to produce error reporting commands as
-                part of the console output.
-                You can enter the commands after the build completes to log
-                error information into a common database, that can help you
-                figure out what might be going wrong.
-                For information on how to enable and use this feature, see the
-                "<link linkend='using-the-error-reporting-tool'>Using the Error Reporting Tool</link>"
-                section.
-            </note>
-        </para>
-
-        <para>
-            The following list shows the debugging topics in the remainder of
-            this section:
-            <itemizedlist>
-                <listitem><para>
-                    "<link linkend='dev-debugging-viewing-logs-from-failed-tasks'>Viewing Logs from Failed Tasks</link>"
-                    describes how to find and view logs from tasks that
-                    failed during the build process.
-                    </para></listitem>
-                <listitem><para>
-                    "<link linkend='dev-debugging-viewing-variable-values'>Viewing Variable Values</link>"
-                    describes how to use the BitBake <filename>-e</filename>
-                    option to examine variable values after a recipe has been
-                    parsed.
-                    </para></listitem>
-                <listitem><para>
-                    "<link linkend='viewing-package-information-with-oe-pkgdata-util'>Viewing Package Information with <filename>oe-pkgdata-util</filename></link>"
-                    describes how to use the
-                    <filename>oe-pkgdata-util</filename> utility to query
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PKGDATA_DIR'><filename>PKGDATA_DIR</filename></ulink>
-                    and display package-related information for built
-                    packages.
-                    </para></listitem>
-                <listitem><para>
-                    "<link linkend='dev-viewing-dependencies-between-recipes-and-tasks'>Viewing Dependencies Between Recipes and Tasks</link>"
-                    describes how to use the BitBake <filename>-g</filename>
-                    option to display recipe dependency information used
-                    during the build.
-                    </para></listitem>
-                <listitem><para>
-                    "<link linkend='dev-viewing-task-variable-dependencies'>Viewing Task Variable Dependencies</link>"
-                    describes how to use the
-                    <filename>bitbake-dumpsig</filename> command in
-                    conjunction with key subdirectories in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                    to determine variable dependencies.
-                    </para></listitem>
-                <listitem><para>
-                    "<link linkend='dev-debugging-taskrunning'>Running Specific Tasks</link>"
-                    describes how to use several BitBake options (e.g.
-                    <filename>-c</filename>, <filename>-C</filename>, and
-                    <filename>-f</filename>) to run specific tasks in the
-                    build chain.
-                    It can be useful to run tasks "out-of-order" when trying
-                    isolate build issues.
-                    </para></listitem>
-                <listitem><para>
-                    "<link linkend='dev-debugging-bitbake'>General BitBake Problems</link>"
-                    describes how to use BitBake's <filename>-D</filename>
-                    debug output option to reveal more about what BitBake is
-                    doing during the build.
-                    </para></listitem>
-                <listitem><para>
-                    "<link linkend='dev-debugging-buildfile'>Building with No Dependencies</link>"
-                    describes how to use the BitBake <filename>-b</filename>
-                    option to build a recipe while ignoring dependencies.
-                    </para></listitem>
-                <listitem><para>
-                    "<link linkend='recipe-logging-mechanisms'>Recipe Logging Mechanisms</link>"
-                    describes how to use the many recipe logging functions
-                    to produce debugging output and report errors and warnings.
-                    </para></listitem>
-                <listitem><para>
-                    "<link linkend='debugging-parallel-make-races'>Debugging Parallel Make Races</link>"
-                    describes how to debug situations where the build consists
-                    of several parts that are run simultaneously and when the
-                    output or result of one part is not ready for use with a
-                    different part of the build that depends on that output.
-                    </para></listitem>
-                <listitem><para>
-                    "<link linkend='platdev-gdb-remotedebug'>Debugging With the GNU Project Debugger (GDB) Remotely</link>"
-                    describes how to use GDB to allow you to examine running
-                    programs, which can help you fix problems.
-                    </para></listitem>
-                <listitem><para>
-                    "<link linkend='debugging-with-the-gnu-project-debugger-gdb-on-the-target'>Debugging with the GNU Project Debugger (GDB) on the Target</link>"
-                    describes how to use GDB directly on target hardware for
-                    debugging.
-                    </para></listitem>
-                <listitem><para>
-                    "<link linkend='dev-other-debugging-others'>Other Debugging Tips</link>"
-                    describes miscellaneous debugging tips that can be useful.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <section id='dev-debugging-viewing-logs-from-failed-tasks'>
-            <title>Viewing Logs from Failed Tasks</title>
-
-            <para>
-                You can find the log for a task in the file
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink><filename>}/temp/log.do_</filename><replaceable>taskname</replaceable>.
-                For example, the log for the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-compile'><filename>do_compile</filename></ulink>
-                task of the QEMU minimal image for the x86 machine
-                (<filename>qemux86</filename>) might be in
-                <filename>tmp/work/qemux86-poky-linux/core-image-minimal/1.0-r0/temp/log.do_compile</filename>.
-                To see the commands
-                <ulink url='&YOCTO_DOCS_REF_URL;#bitbake-term'>BitBake</ulink>
-                ran to generate a log, look at the corresponding
-                <filename>run.do_</filename><replaceable>taskname</replaceable>
-                file in the same directory.
-            </para>
-
-            <para>
-                <filename>log.do_</filename><replaceable>taskname</replaceable>
-                and
-                <filename>run.do_</filename><replaceable>taskname</replaceable>
-                are actually symbolic links to
-                <filename>log.do_</filename><replaceable>taskname</replaceable><filename>.</filename><replaceable>pid</replaceable>
-                and
-                <filename>log.run_</filename><replaceable>taskname</replaceable><filename>.</filename><replaceable>pid</replaceable>,
-                where <replaceable>pid</replaceable> is the PID the task had
-                when it ran.
-                The symlinks always point to the files corresponding to the most
-                recent run.
-            </para>
-        </section>
-
-        <section id='dev-debugging-viewing-variable-values'>
-            <title>Viewing Variable Values</title>
-
-            <para>
-                Sometimes you need to know the value of a variable as a
-                result of BitBake's parsing step.
-                This could be because some unexpected behavior occurred
-                in your project.
-                Perhaps an attempt to
-                <ulink url='&YOCTO_DOCS_BB_URL;#modifying-existing-variables'>modify a variable</ulink>
-                did not work out as expected.
-            </para>
-
-            <para>
-                BitBake's <filename>-e</filename> option is used to display
-                variable values after parsing.
-                The following command displays the variable values after the
-                configuration files (i.e. <filename>local.conf</filename>,
-                <filename>bblayers.conf</filename>,
-                <filename>bitbake.conf</filename> and so forth) have been
-                parsed:
-                <literallayout class='monospaced'>
-     $ bitbake -e
-                </literallayout>
-                The following command displays variable values after a specific
-                recipe has been parsed.
-                The variables include those from the configuration as well:
-                <literallayout class='monospaced'>
-     $ bitbake -e recipename
-                </literallayout>
-                <note><para>
-                    Each recipe has its own private set of variables
-                    (datastore).
-                    Internally, after parsing the configuration, a copy of the
-                    resulting datastore is made prior to parsing each recipe.
-                    This copying implies that variables set in one recipe will
-                    not be visible to other recipes.</para>
-
-                    <para>Likewise, each task within a recipe gets a private
-                    datastore based on the recipe datastore, which means that
-                    variables set within one task will not be visible to
-                    other tasks.</para>
-                </note>
-            </para>
-
-            <para>
-                In the output of <filename>bitbake -e</filename>, each
-                variable is preceded by a description of how the variable
-                got its value, including temporary values that were later
-                overriden.
-                This description also includes variable flags (varflags) set on
-                the variable.
-                The output can be very helpful during debugging.
-            </para>
-
-            <para>
-                Variables that are exported to the environment are preceded by
-                <filename>export</filename> in the output of
-                <filename>bitbake -e</filename>.
-                See the following example:
-                <literallayout class='monospaced'>
-     export CC="i586-poky-linux-gcc -m32 -march=i586 --sysroot=/home/ulf/poky/build/tmp/sysroots/qemux86"
-                </literallayout>
-            </para>
-
-            <para>
-                In addition to variable values, the output of the
-                <filename>bitbake -e</filename> and
-                <filename>bitbake -e</filename>&nbsp;<replaceable>recipe</replaceable>
-                commands includes the following information:
-                <itemizedlist>
-                    <listitem><para>
-                        The output starts with a tree listing all configuration
-                        files and classes included globally, recursively listing
-                        the files they include or inherit in turn.
-                        Much of the behavior of the OpenEmbedded build system
-                        (including the behavior of the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#normal-recipe-build-tasks'>normal recipe build tasks</ulink>)
-                        is implemented in the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-base'><filename>base</filename></ulink>
-                        class and the classes it inherits, rather than being
-                        built into BitBake itself.
-                        </para></listitem>
-                    <listitem><para>
-                        After the variable values, all functions appear in the
-                        output.
-                        For shell functions, variables referenced within the
-                        function body are expanded.
-                        If a function has been modified using overrides or
-                        using override-style operators like
-                        <filename>_append</filename> and
-                        <filename>_prepend</filename>, then the final assembled
-                        function body appears in the output.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='viewing-package-information-with-oe-pkgdata-util'>
-            <title>Viewing Package Information with <filename>oe-pkgdata-util</filename></title>
-
-            <para>
-                You can use the <filename>oe-pkgdata-util</filename>
-                command-line utility to query
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PKGDATA_DIR'><filename>PKGDATA_DIR</filename></ulink>
-                and display various package-related information.
-                When you use the utility, you must use it to view information
-                on packages that have already been built.
-            </para>
-
-            <para>
-                Following are a few of the available
-                <filename>oe-pkgdata-util</filename> subcommands.
-                <note>
-                    You can use the standard * and ? globbing wildcards as part
-                    of package names and paths.
-                </note>
-                <itemizedlist>
-                    <listitem><para>
-                        <filename>oe-pkgdata-util list-pkgs [</filename><replaceable>pattern</replaceable><filename>]</filename>:
-                        Lists all packages that have been built, optionally
-                        limiting the match to packages that match
-                        <replaceable>pattern</replaceable>.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>oe-pkgdata-util list-pkg-files&nbsp;</filename><replaceable>package</replaceable><filename>&nbsp;...</filename>:
-                        Lists the files and directories contained in the given
-                        packages.
-                        <note>
-                            <para>
-                            A different way to view the contents of a package is
-                            to look at the
-                            <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink><filename>}/packages-split</filename>
-                            directory of the recipe that generates the
-                            package.
-                            This directory is created by the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package'><filename>do_package</filename></ulink>
-                            task and has one subdirectory for each package the
-                            recipe generates, which contains the files stored in
-                            that package.</para>
-                            <para>
-                            If you want to inspect the
-                            <filename>${WORKDIR}/packages-split</filename>
-                            directory, make sure that
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-rm-work'><filename>rm_work</filename></ulink>
-                            is not enabled when you build the recipe.
-                            </para>
-                            </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>oe-pkgdata-util find-path&nbsp;</filename><replaceable>path</replaceable><filename>&nbsp;...</filename>:
-                        Lists the names of the packages that contain the given
-                        paths.
-                        For example, the following tells us that
-                        <filename>/usr/share/man/man1/make.1</filename>
-                        is contained in the <filename>make-doc</filename>
-                        package:
-                        <literallayout class='monospaced'>
-     $ oe-pkgdata-util find-path /usr/share/man/man1/make.1
-     make-doc: /usr/share/man/man1/make.1
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>oe-pkgdata-util lookup-recipe&nbsp;</filename><replaceable>package</replaceable><filename>&nbsp;...</filename>:
-                        Lists the name of the recipes that
-                        produce the given packages.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                For more information on the <filename>oe-pkgdata-util</filename>
-                command, use the help facility:
-                <literallayout class='monospaced'>
-     $ oe-pkgdata-util &dash;&dash;help
-     $ oe-pkgdata-util <replaceable>subcommand</replaceable> --help
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='dev-viewing-dependencies-between-recipes-and-tasks'>
-            <title>Viewing Dependencies Between Recipes and Tasks</title>
-
-            <para>
-                Sometimes it can be hard to see why BitBake wants to build other
-                recipes before the one you have specified.
-                Dependency information can help you understand why a recipe is
-                built.
-            </para>
-
-            <para>
-                To generate dependency information for a recipe, run the
-                following command:
-                <literallayout class='monospaced'>
-     $ bitbake -g <replaceable>recipename</replaceable>
-                </literallayout>
-                This command writes the following files in the current
-                directory:
-                <itemizedlist>
-                    <listitem><para>
-                        <filename>pn-buildlist</filename>: A list of
-                        recipes/targets involved in building
-                        <replaceable>recipename</replaceable>.
-                        "Involved" here means that at least one task from the
-                         recipe needs to run when building
-                        <replaceable>recipename</replaceable> from scratch.
-                        Targets that are in
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-ASSUME_PROVIDED'><filename>ASSUME_PROVIDED</filename></ulink>
-                        are not listed.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>task-depends.dot</filename>: A graph showing
-                        dependencies between tasks.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                The graphs are in
-                <ulink url='https://en.wikipedia.org/wiki/DOT_%28graph_description_language%29'>DOT</ulink>
-                format and can be converted to images (e.g. using the
-                <filename>dot</filename> tool from
-                <ulink url='http://www.graphviz.org/'>Graphviz</ulink>).
-                <note><title>Notes</title>
-                    <itemizedlist>
-                        <listitem><para>
-                            DOT files use a plain text format.
-                            The graphs generated using the
-                            <filename>bitbake -g</filename> command are often so
-                            large as to be difficult to read without special
-                            pruning (e.g. with Bitbake's
-                            <filename>-I</filename> option) and processing.
-                            Despite the form and size of the graphs, the
-                            corresponding <filename>.dot</filename> files can
-                            still be possible to read and provide useful
-                            information.
-                            </para>
-
-                            <para>As an example, the
-                            <filename>task-depends.dot</filename> file contains
-                            lines such as the following:
-                            <literallayout class='monospaced'>
-     "libxslt.do_configure" -> "libxml2.do_populate_sysroot"
-                            </literallayout>
-                            The above example line reveals that the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-configure'><filename>do_configure</filename></ulink>
-                            task in <filename>libxslt</filename> depends on the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></ulink>
-                            task in <filename>libxml2</filename>, which is a
-                            normal
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPENDS'><filename>DEPENDS</filename></ulink>
-                            dependency between the two recipes.
-                            </para></listitem>
-                        <listitem><para>
-                            For an example of how <filename>.dot</filename>
-                            files can be processed, see the
-                            <filename>scripts/contrib/graph-tool</filename>
-                            Python script, which finds and displays paths
-                            between graph nodes.
-                            </para></listitem>
-                    </itemizedlist>
-                </note>
-            </para>
-
-            <para>
-                You can use a different method to view dependency information
-                by using the following command:
-                <literallayout class='monospaced'>
-     $ bitbake -g -u taskexp <replaceable>recipename</replaceable>
-                </literallayout>
-                This command displays a GUI window from which you can view
-                build-time and runtime dependencies for the recipes involved in
-                building <replaceable>recipename</replaceable>.
-            </para>
-        </section>
-
-        <section id='dev-viewing-task-variable-dependencies'>
-            <title>Viewing Task Variable Dependencies</title>
-
-            <para>
-                As mentioned in the
-                "<ulink url='&YOCTO_DOCS_BB_URL;#checksums'>Checksums (Signatures)</ulink>"
-                section of the BitBake User Manual, BitBake tries to
-                automatically determine what variables a task depends on so
-                that it can rerun the task if any values of the variables
-                change.
-                This determination is usually reliable.
-                However, if you do things like construct variable names at
-                runtime, then you might have to manually declare dependencies
-                on those variables using <filename>vardeps</filename> as
-                described in the
-                "<ulink url='&YOCTO_DOCS_BB_URL;#variable-flags'>Variable Flags</ulink>"
-                section of the BitBake User Manual.
-            </para>
-
-            <para>
-                If you are unsure whether a variable dependency is being
-                picked up automatically for a given task, you can list the
-                variable dependencies BitBake has determined by doing the
-                following:
-                <orderedlist>
-                    <listitem><para>
-                        Build the recipe containing the task:
-                        <literallayout class='monospaced'>
-     $ bitbake <replaceable>recipename</replaceable>
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        Inside the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-STAMPS_DIR'><filename>STAMPS_DIR</filename></ulink>
-                        directory, find the signature data
-                        (<filename>sigdata</filename>) file that corresponds
-                        to the task.
-                        The <filename>sigdata</filename> files contain a pickled
-                        Python database of all the metadata that went into
-                        creating the input checksum for the task.
-                        As an example, for the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-fetch'><filename>do_fetch</filename></ulink>
-                        task of the <filename>db</filename> recipe, the
-                        <filename>sigdata</filename> file might be found in the
-                        following location:
-                        <literallayout class='monospaced'>
-     ${BUILDDIR}/tmp/stamps/i586-poky-linux/db/6.0.30-r1.do_fetch.sigdata.7c048c18222b16ff0bcee2000ef648b1
-                        </literallayout>
-                        For tasks that are accelerated through the shared state
-                        (<ulink url='&YOCTO_DOCS_OM_URL;#shared-state-cache'>sstate</ulink>)
-                        cache, an additional <filename>siginfo</filename> file
-                        is written into
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SSTATE_DIR'><filename>SSTATE_DIR</filename></ulink>
-                        along with the cached task output.
-                        The <filename>siginfo</filename> files contain exactly
-                        the same information as <filename>sigdata</filename>
-                        files.
-                        </para></listitem>
-                    <listitem><para>
-                        Run <filename>bitbake-dumpsig</filename> on the
-                        <filename>sigdata</filename> or
-                        <filename>siginfo</filename> file.
-                        Here is an example:
-                        <literallayout class='monospaced'>
-     $ bitbake-dumpsig ${BUILDDIR}/tmp/stamps/i586-poky-linux/db/6.0.30-r1.do_fetch.sigdata.7c048c18222b16ff0bcee2000ef648b1
-                        </literallayout>
-                        In the output of the above command, you will find a
-                        line like the following, which lists all the (inferred)
-                        variable dependencies for the task.
-                        This list also includes indirect dependencies from
-                        variables depending on other variables, recursively.
-                        <literallayout class='monospaced'>
-     Task dependencies: ['PV', 'SRCREV', 'SRC_URI', 'SRC_URI[md5sum]', 'SRC_URI[sha256sum]', 'base_do_fetch']
-                        </literallayout>
-                        <note>
-                            Functions (e.g. <filename>base_do_fetch</filename>)
-                            also count as variable dependencies.
-                            These functions in turn depend on the variables they
-                            reference.
-                        </note>
-                        The output of <filename>bitbake-dumpsig</filename> also
-                        includes the value each variable had, a list of
-                        dependencies for each variable, and
-                        <ulink url='&YOCTO_DOCS_BB_URL;#var-BB_HASHBASE_WHITELIST'><filename>BB_HASHBASE_WHITELIST</filename></ulink>
-                        information.
-                        </para></listitem>
-                </orderedlist>
-            </para>
-
-            <para>
-                There is also a <filename>bitbake-diffsigs</filename> command
-                for comparing two <filename>siginfo</filename> or
-                <filename>sigdata</filename> files.
-                This command can be helpful when trying to figure out what
-                changed between two versions of a task.
-                If you call <filename>bitbake-diffsigs</filename> with just one
-                file, the command behaves like
-                <filename>bitbake-dumpsig</filename>.
-            </para>
-
-            <para>
-                You can also use BitBake to dump out the signature construction
-                information without executing tasks by using either of the
-                following BitBake command-line options:
-                <literallayout class='monospaced'>
-     &dash;&dash;dump-signatures=<replaceable>SIGNATURE_HANDLER</replaceable>
-     -S <replaceable>SIGNATURE_HANDLER</replaceable>
-                </literallayout>
-                <note>
-                    Two common values for
-                    <replaceable>SIGNATURE_HANDLER</replaceable> are "none" and
-                    "printdiff", which dump only the signature or compare the
-                    dumped signature with the cached one, respectively.
-                </note>
-                Using BitBake with either of these options causes BitBake to
-                dump out <filename>sigdata</filename> files in the
-                <filename>stamps</filename> directory for every task it would
-                have executed instead of building the specified target package.
-            </para>
-        </section>
-
-        <section id='dev-viewing-metadata-used-to-create-the-input-signature-of-a-shared-state-task'>
-            <title>Viewing Metadata Used to Create the Input Signature of a Shared State Task</title>
-
-            <para>
-                Seeing what metadata went into creating the input signature
-                of a shared state (sstate) task can be a useful debugging
-                aid.
-                This information is available in signature information
-                (<filename>siginfo</filename>) files in
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SSTATE_DIR'><filename>SSTATE_DIR</filename></ulink>.
-                For information on how to view and interpret information in
-                <filename>siginfo</filename> files, see the
-                "<link linkend='dev-viewing-task-variable-dependencies'>Viewing Task Variable Dependencies</link>"
-                section.
-            </para>
-
-            <para>
-                For conceptual information on shared state, see the
-                "<ulink url='&YOCTO_DOCS_OM_URL;#shared-state'>Shared State</ulink>"
-                section in the Yocto Project Overview and Concepts Manual.
-            </para>
-        </section>
-
-        <section id='dev-invalidating-shared-state-to-force-a-task-to-run'>
-            <title>Invalidating Shared State to Force a Task to Run</title>
-
-            <para>
-                The OpenEmbedded build system uses
-                <ulink url='&YOCTO_DOCS_OM_URL;#overview-checksums'>checksums</ulink>
-                and
-                <ulink url='&YOCTO_DOCS_OM_URL;#shared-state'>shared state</ulink>
-                cache to avoid unnecessarily rebuilding tasks.
-                Collectively, this scheme is known as "shared state code."
-            </para>
-
-            <para>
-                As with all schemes, this one has some drawbacks.
-                It is possible that you could make implicit changes to your
-                code that the checksum calculations do not take into
-                account.
-                These implicit changes affect a task's output but do not
-                trigger the shared state code into rebuilding a recipe.
-                Consider an example during which a tool changes its output.
-                Assume that the output of <filename>rpmdeps</filename>
-                changes.
-                The result of the change should be that all the
-                <filename>package</filename> and
-                <filename>package_write_rpm</filename> shared state cache
-                items become invalid.
-                However, because the change to the output is
-                external to the code and therefore implicit,
-                the associated shared state cache items do not become
-                invalidated.
-                In this case, the build process uses the cached items
-                rather than running the task again.
-                Obviously, these types of implicit changes can cause
-                problems.
-            </para>
-
-            <para>
-                To avoid these problems during the build, you need to
-                understand the effects of any changes you make.
-                Realize that changes you make directly to a function
-                are automatically factored into the checksum calculation.
-                Thus, these explicit changes invalidate the associated
-                area of shared state cache.
-                However, you need to be aware of any implicit changes that
-                are not obvious changes to the code and could affect
-                the output of a given task.
-            </para>
-
-            <para>
-                When you identify an implicit change, you can easily
-                take steps to invalidate the cache and force the tasks
-                to run.
-                The steps you can take are as simple as changing a
-                function's comments in the source code.
-                For example, to invalidate package shared state files,
-                change the comment statements of
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package'><filename>do_package</filename></ulink>
-                or the comments of one of the functions it calls.
-                Even though the change is purely cosmetic, it causes the
-                checksum to be recalculated and forces the build system to
-                run the task again.
-                <note>
-                    For an example of a commit that makes a cosmetic
-                    change to invalidate shared state, see this
-                    <ulink url='&YOCTO_GIT_URL;/cgit.cgi/poky/commit/meta/classes/package.bbclass?id=737f8bbb4f27b4837047cb9b4fbfe01dfde36d54'>commit</ulink>.
-                </note>
-            </para>
-        </section>
-
-        <section id='dev-debugging-taskrunning'>
-            <title>Running Specific Tasks</title>
-
-            <para>
-                Any given recipe consists of a set of tasks.
-                The standard BitBake behavior in most cases is:
-                <filename>do_fetch</filename>,
-                <filename>do_unpack</filename>,
-                <filename>do_patch</filename>,
-                <filename>do_configure</filename>,
-                <filename>do_compile</filename>,
-                <filename>do_install</filename>,
-                <filename>do_package</filename>,
-                <filename>do_package_write_*</filename>, and
-                <filename>do_build</filename>.
-                The default task is <filename>do_build</filename> and any tasks
-                on which it depends build first.
-                Some tasks, such as <filename>do_devshell</filename>, are not
-                part of the default build chain.
-                If you wish to run a task that is not part of the default build
-                chain, you can use the <filename>-c</filename> option in
-                BitBake.
-                Here is an example:
-                <literallayout class='monospaced'>
-     $ bitbake matchbox-desktop -c devshell
-                </literallayout>
-            </para>
-
-            <para>
-                The <filename>-c</filename> option respects task dependencies,
-                which means that all other tasks (including tasks from other
-                recipes) that the specified task depends on will be run before
-                the task.
-                Even when you manually specify a task to run with
-                <filename>-c</filename>, BitBake will only run the task if it
-                considers it "out of date".
-                See the
-                "<ulink url='&YOCTO_DOCS_OM_URL;#stamp-files-and-the-rerunning-of-tasks'>Stamp Files and the Rerunning of Tasks</ulink>"
-                section in the Yocto Project Overview and Concepts Manual for
-                how BitBake determines whether a task is "out of date".
-            </para>
-
-            <para>
-                If you want to force an up-to-date task to be rerun (e.g.
-                because you made manual modifications to the recipe's
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink>
-                that you want to try out), then you can use the
-                <filename>-f</filename> option.
-                <note>
-                    The reason <filename>-f</filename> is never required when
-                    running the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-devshell'><filename>do_devshell</filename></ulink>
-                    task is because the
-                    <filename>[</filename><ulink url='&YOCTO_DOCS_BB_URL;#variable-flags'><filename>nostamp</filename></ulink><filename>]</filename>
-                    variable flag is already set for the task.
-                </note>
-                The following example shows one way you can use the
-                <filename>-f</filename> option:
-                <literallayout class='monospaced'>
-     $ bitbake matchbox-desktop
-               .
-               .
-     make some changes to the source code in the work directory
-               .
-               .
-     $ bitbake matchbox-desktop -c compile -f
-     $ bitbake matchbox-desktop
-                </literallayout>
-            </para>
-
-            <para>
-                This sequence first builds and then recompiles
-                <filename>matchbox-desktop</filename>.
-                The last command reruns all tasks (basically the packaging
-                tasks) after the compile.
-                BitBake recognizes that the <filename>do_compile</filename>
-                task was rerun and therefore understands that the other tasks
-                also need to be run again.
-            </para>
-
-            <para>
-                Another, shorter way to rerun a task and all
-                <ulink url='&YOCTO_DOCS_REF_URL;#normal-recipe-build-tasks'>normal recipe build tasks</ulink>
-                that depend on it is to use the <filename>-C</filename>
-                option.
-                <note>
-                    This option is upper-cased and is separate from the
-                    <filename>-c</filename> option, which is lower-cased.
-                </note>
-                Using this option invalidates the given task and then runs the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-build'><filename>do_build</filename></ulink>
-                task, which is the default task if no task is given, and the
-                tasks on which it depends.
-                You could replace the final two commands in the previous example
-                with the following single command:
-                <literallayout class='monospaced'>
-     $ bitbake matchbox-desktop -C compile
-                </literallayout>
-                Internally, the <filename>-f</filename> and
-                <filename>-C</filename> options work by tainting (modifying) the
-                input checksum of the specified task.
-                This tainting indirectly causes the task and its
-                dependent tasks to be rerun through the normal task dependency
-                mechanisms.
-                <note>
-                    BitBake explicitly keeps track of which tasks have been
-                    tainted in this fashion, and will print warnings such as the
-                    following for builds involving such tasks:
-                    <literallayout class='monospaced'>
-     WARNING: /home/ulf/poky/meta/recipes-sato/matchbox-desktop/matchbox-desktop_2.1.bb.do_compile is tainted from a forced run
-                    </literallayout>
-                    The purpose of the warning is to let you know that the work
-                    directory and build output might not be in the clean state
-                    they would be in for a "normal" build, depending on what
-                    actions you took.
-                    To get rid of such warnings, you can remove the work
-                    directory and rebuild the recipe, as follows:
-                    <literallayout class='monospaced'>
-     $ bitbake matchbox-desktop -c clean
-     $ bitbake matchbox-desktop
-                    </literallayout>
-                </note>
-            </para>
-
-            <para>
-                You can view a list of tasks in a given package by running the
-                <filename>do_listtasks</filename> task as follows:
-                <literallayout class='monospaced'>
-     $ bitbake matchbox-desktop -c listtasks
-                </literallayout>
-                The results appear as output to the console and are also in the
-                file <filename>${WORKDIR}/temp/log.do_listtasks</filename>.
-            </para>
-        </section>
-
-        <section id='dev-debugging-bitbake'>
-            <title>General BitBake Problems</title>
-
-            <para>
-                You can see debug output from BitBake by using the
-                <filename>-D</filename> option.
-                The debug output gives more information about what BitBake
-                is doing and the reason behind it.
-                Each <filename>-D</filename> option you use increases the
-                logging level.
-                The most common usage is <filename>-DDD</filename>.
-            </para>
-
-            <para>
-                The output from
-                <filename>bitbake -DDD -v</filename> <replaceable>targetname</replaceable>
-                can reveal why BitBake chose a certain version of a package or
-                why BitBake picked a certain provider.
-                This command could also help you in a situation where you think
-                BitBake did something unexpected.
-            </para>
-        </section>
-
-        <section id='dev-debugging-buildfile'>
-            <title>Building with No Dependencies</title>
-
-            <para>
-                To build a specific recipe (<filename>.bb</filename> file),
-                you can use the following command form:
-                <literallayout class='monospaced'>
-     $ bitbake -b <replaceable>somepath</replaceable>/<replaceable>somerecipe</replaceable>.bb
-                </literallayout>
-                This command form does not check for dependencies.
-                Consequently, you should use it only when you know existing
-                dependencies have been met.
-                <note>
-                    You can also specify fragments of the filename.
-                    In this case, BitBake checks for a unique match.
-                </note>
-            </para>
-        </section>
-
-        <section id='recipe-logging-mechanisms'>
-            <title>Recipe Logging Mechanisms</title>
-
-            <para>
-                The Yocto Project provides several logging functions for
-                producing debugging output and reporting errors and warnings.
-                For Python functions, the following logging functions exist.
-                All of these functions log to
-                <filename>${T}/log.do_</filename><replaceable>task</replaceable>,
-                and can also log to standard output (stdout) with the right
-                settings:
-                <itemizedlist>
-                    <listitem><para>
-                        <filename>bb.plain(</filename><replaceable>msg</replaceable><filename>)</filename>:
-                        Writes <replaceable>msg</replaceable> as is to the
-                        log while also logging to stdout.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>bb.note(</filename><replaceable>msg</replaceable><filename>)</filename>:
-                        Writes "NOTE: <replaceable>msg</replaceable>" to the
-                        log.
-                        Also logs to stdout if BitBake is called with "-v".
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>bb.debug(</filename><replaceable>level</replaceable><filename>,&nbsp;</filename><replaceable>msg</replaceable><filename>)</filename>:
-                        Writes "DEBUG: <replaceable>msg</replaceable>" to the
-                        log.
-                        Also logs to stdout if the log level is greater than or
-                        equal to <replaceable>level</replaceable>.
-                        See the
-                        "<ulink url='&YOCTO_DOCS_BB_URL;#usage-and-syntax'>-D</ulink>"
-                        option in the BitBake User Manual for more information.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>bb.warn(</filename><replaceable>msg</replaceable><filename>)</filename>:
-                        Writes "WARNING: <replaceable>msg</replaceable>" to the
-                        log while also logging to stdout.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>bb.error(</filename><replaceable>msg</replaceable><filename>)</filename>:
-                        Writes "ERROR: <replaceable>msg</replaceable>" to the
-                        log while also logging to standard out (stdout).
-                        <note>
-                            Calling this function does not cause the task to fail.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>bb.fatal(</filename><replaceable>msg</replaceable><filename>)</filename>:
-                        This logging function is similar to
-                        <filename>bb.error(</filename><replaceable>msg</replaceable><filename>)</filename>
-                        but also causes the calling task to fail.
-                        <note>
-                            <filename>bb.fatal()</filename> raises an exception,
-                            which means you do not need to put a "return"
-                            statement after the function.
-                        </note>
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                The same logging functions are also available in shell
-                functions, under the names
-                <filename>bbplain</filename>, <filename>bbnote</filename>,
-                <filename>bbdebug</filename>, <filename>bbwarn</filename>,
-                <filename>bberror</filename>, and <filename>bbfatal</filename>.
-                The
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-logging'><filename>logging</filename></ulink>
-                class implements these functions.
-                See that class in the
-                <filename>meta/classes</filename> folder of the
-                <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                for information.
-            </para>
-
-            <section id='logging-with-python'>
-                <title>Logging With Python</title>
-
-                <para>
-                    When creating recipes using Python and inserting code that
-                    handles build logs, keep in mind the goal is to have
-                    informative logs while keeping the console as "silent" as
-                    possible.
-                    Also, if you want status messages in the log, use the
-                    "debug" loglevel.
-                </para>
-
-                <para>
-                    Following is an example written in Python.
-                    The code handles logging for a function that determines the
-                    number of tasks needed to be run.
-                    See the
-                    "<ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-listtasks'><filename>do_listtasks</filename></ulink>"
-                    section for additional information:
-                    <literallayout class='monospaced'>
-     python do_listtasks() {
-         bb.debug(2, "Starting to figure out the task list")
-         if noteworthy_condition:
-             bb.note("There are 47 tasks to run")
-         bb.debug(2, "Got to point xyz")
-         if warning_trigger:
-             bb.warn("Detected warning_trigger, this might be a problem later.")
-         if recoverable_error:
-             bb.error("Hit recoverable_error, you really need to fix this!")
-         if fatal_error:
-             bb.fatal("fatal_error detected, unable to print the task list")
-         bb.plain("The tasks present are abc")
-         bb.debug(2, "Finished figuring out the tasklist")
-     }
-                    </literallayout>
-                </para>
-            </section>
-
-            <section id='logging-with-bash'>
-                <title>Logging With Bash</title>
-
-                <para>
-                    When creating recipes using Bash and inserting code that
-                    handles build logs, you have the same goals - informative
-                    with minimal console output.
-                    The syntax you use for recipes written in Bash is similar
-                    to that of recipes written in Python described in the
-                    previous section.
-                </para>
-
-                <para>
-                    Following is an example written in Bash.
-                    The code logs the progress of the <filename>do_my_function</filename> function.
-                    <literallayout class='monospaced'>
-     do_my_function() {
-         bbdebug 2 "Running do_my_function"
-         if [ exceptional_condition ]; then
-             bbnote "Hit exceptional_condition"
-         fi
-         bbdebug 2  "Got to point xyz"
-         if [ warning_trigger ]; then
-             bbwarn "Detected warning_trigger, this might cause a problem later."
-         fi
-         if [ recoverable_error ]; then
-             bberror "Hit recoverable_error, correcting"
-         fi
-         if [ fatal_error ]; then
-             bbfatal "fatal_error detected"
-         fi
-         bbdebug 2 "Completed do_my_function"
-     }
-                    </literallayout>
-                </para>
-            </section>
-        </section>
-
-        <section id='debugging-parallel-make-races'>
-            <title>Debugging Parallel Make Races</title>
-
-            <para>
-                A parallel <filename>make</filename> race occurs when the build
-                consists of several parts that are run simultaneously and
-                a situation occurs when the output or result of one
-                part is not ready for use with a different part of the build
-                that depends on that output.
-                Parallel make races are annoying and can sometimes be difficult
-                to reproduce and fix.
-                However, some simple tips and tricks exist that can help
-                you debug and fix them.
-                This section presents a real-world example of an error
-                encountered on the Yocto Project autobuilder and the process
-                used to fix it.
-                <note>
-                    If you cannot properly fix a <filename>make</filename> race
-                    condition, you can work around it by clearing either the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PARALLEL_MAKE'><filename>PARALLEL_MAKE</filename></ulink>
-                    or
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PARALLEL_MAKEINST'><filename>PARALLEL_MAKEINST</filename></ulink>
-                    variables.
-                </note>
-            </para>
-
-            <section id='the-failure'>
-                <title>The Failure</title>
-
-                <para>
-                    For this example, assume that you are building an image that
-                    depends on the "neard" package.
-                    And, during the build, BitBake runs into problems and
-                    creates the following output.
-                    <note>
-                        This example log file has longer lines artificially
-                        broken to make the listing easier to read.
-                    </note>
-                    If you examine the output or the log file, you see the
-                    failure during <filename>make</filename>:
-                    <literallayout class='monospaced'>
-     | DEBUG: SITE files ['endian-little', 'bit-32', 'ix86-common', 'common-linux', 'common-glibc', 'i586-linux', 'common']
-     | DEBUG: Executing shell function do_compile
-     | NOTE: make -j 16
-     | make --no-print-directory all-am
-     | /bin/mkdir -p include/near
-     | /bin/mkdir -p include/near
-     | /bin/mkdir -p include/near
-     | ln -s /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/work/i586-poky-linux/neard/
-       0.14-r0/neard-0.14/include/types.h include/near/types.h
-     | ln -s /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/work/i586-poky-linux/neard/
-       0.14-r0/neard-0.14/include/log.h include/near/log.h
-     | ln -s /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/work/i586-poky-linux/neard/
-       0.14-r0/neard-0.14/include/plugin.h include/near/plugin.h
-     | /bin/mkdir -p include/near
-     | /bin/mkdir -p include/near
-     | /bin/mkdir -p include/near
-     | ln -s /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/work/i586-poky-linux/neard/
-       0.14-r0/neard-0.14/include/tag.h include/near/tag.h
-     | /bin/mkdir -p include/near
-     | ln -s /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/work/i586-poky-linux/neard/
-       0.14-r0/neard-0.14/include/adapter.h include/near/adapter.h
-     | /bin/mkdir -p include/near
-     | ln -s /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/work/i586-poky-linux/neard/
-       0.14-r0/neard-0.14/include/ndef.h include/near/ndef.h
-     | ln -s /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/work/i586-poky-linux/neard/
-       0.14-r0/neard-0.14/include/tlv.h include/near/tlv.h
-     | /bin/mkdir -p include/near
-     | /bin/mkdir -p include/near
-     | ln -s /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/work/i586-poky-linux/neard/
-       0.14-r0/neard-0.14/include/setting.h include/near/setting.h
-     | /bin/mkdir -p include/near
-     | /bin/mkdir -p include/near
-     | /bin/mkdir -p include/near
-     | ln -s /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/work/i586-poky-linux/neard/
-       0.14-r0/neard-0.14/include/device.h include/near/device.h
-     | ln -s /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/work/i586-poky-linux/neard/
-       0.14-r0/neard-0.14/include/nfc_copy.h include/near/nfc_copy.h
-     | ln -s /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/work/i586-poky-linux/neard/
-       0.14-r0/neard-0.14/include/snep.h include/near/snep.h
-     | ln -s /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/work/i586-poky-linux/neard/
-       0.14-r0/neard-0.14/include/version.h include/near/version.h
-     | ln -s /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/work/i586-poky-linux/neard/
-       0.14-r0/neard-0.14/include/dbus.h include/near/dbus.h
-     | ./src/genbuiltin nfctype1 nfctype2 nfctype3 nfctype4 p2p > src/builtin.h
-     | i586-poky-linux-gcc  -m32 -march=i586 --sysroot=/home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/
-       build/build/tmp/sysroots/qemux86 -DHAVE_CONFIG_H -I. -I./include -I./src -I./gdbus  -I/home/pokybuild/
-       yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/sysroots/qemux86/usr/include/glib-2.0
-       -I/home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/tmp/sysroots/qemux86/usr/
-       lib/glib-2.0/include  -I/home/pokybuild/yocto-autobuilder/yocto-slave/nightly-x86/build/build/
-       tmp/sysroots/qemux86/usr/include/dbus-1.0 -I/home/pokybuild/yocto-autobuilder/yocto-slave/
-       nightly-x86/build/build/tmp/sysroots/qemux86/usr/lib/dbus-1.0/include  -I/home/pokybuild/yocto-autobuilder/
-       yocto-slave/nightly-x86/build/build/tmp/sysroots/qemux86/usr/include/libnl3
-       -DNEAR_PLUGIN_BUILTIN -DPLUGINDIR=\""/usr/lib/near/plugins"\"
-       -DCONFIGDIR=\""/etc/neard\"" -O2 -pipe -g -feliminate-unused-debug-types -c
-       -o tools/snep-send.o tools/snep-send.c
-     | In file included from tools/snep-send.c:16:0:
-     | tools/../src/near.h:41:23: fatal error: near/dbus.h: No such file or directory
-     |  #include &lt;near/dbus.h&gt;
-     |                        ^
-     | compilation terminated.
-     | make[1]: *** [tools/snep-send.o] Error 1
-     | make[1]: *** Waiting for unfinished jobs....
-     | make: *** [all] Error 2
-     | ERROR: oe_runmake failed
-                    </literallayout>
-                </para>
-            </section>
-
-            <section id='reproducing-the-error'>
-                <title>Reproducing the Error</title>
-
-                <para>
-                    Because race conditions are intermittent, they do not
-                    manifest themselves every time you do the build.
-                    In fact, most times the build will complete without problems
-                    even though the potential race condition exists.
-                    Thus, once the error surfaces, you need a way to reproduce
-                    it.
-                </para>
-
-                <para>
-                    In this example, compiling the "neard" package is causing
-                    the problem.
-                    So the first thing to do is build "neard" locally.
-                    Before you start the build, set the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PARALLEL_MAKE'><filename>PARALLEL_MAKE</filename></ulink>
-                    variable in your <filename>local.conf</filename> file to
-                    a high number (e.g. "-j 20").
-                    Using a high value for <filename>PARALLEL_MAKE</filename>
-                    increases the chances of the race condition showing up:
-                    <literallayout class='monospaced'>
-     $ bitbake neard
-                    </literallayout>
-                </para>
-
-                <para>
-                    Once the local build for "neard" completes, start a
-                    <filename>devshell</filename> build:
-                    <literallayout class='monospaced'>
-     $ bitbake neard -c devshell
-                    </literallayout>
-                    For information on how to use a
-                    <filename>devshell</filename>, see the
-                    "<link linkend='platdev-appdev-devshell'>Using a Development Shell</link>"
-                    section.
-                </para>
-
-                <para>
-                    In the <filename>devshell</filename>, do the following:
-                    <literallayout class='monospaced'>
-     $ make clean
-     $ make tools/snep-send.o
-                    </literallayout>
-                    The <filename>devshell</filename> commands cause the failure
-                    to clearly be visible.
-                    In this case, a missing dependency exists for the "neard"
-                    Makefile target.
-                    Here is some abbreviated, sample output with the
-                    missing dependency clearly visible at the end:
-                    <literallayout class='monospaced'>
-     i586-poky-linux-gcc  -m32 -march=i586 --sysroot=/home/scott-lenovo/......
-        .
-        .
-        .
-     tools/snep-send.c
-     In file included from tools/snep-send.c:16:0:
-     tools/../src/near.h:41:23: fatal error: near/dbus.h: No such file or directory
-      #include &lt;near/dbus.h&gt;
-                       ^
-     compilation terminated.
-     make: *** [tools/snep-send.o] Error 1
-     $
-                    </literallayout>
-                </para>
-            </section>
-
-            <section id='creating-a-patch-for-the-fix'>
-                <title>Creating a Patch for the Fix</title>
-
-                <para>
-                    Because there is a missing dependency for the Makefile
-                    target, you need to patch the
-                    <filename>Makefile.am</filename> file, which is generated
-                    from <filename>Makefile.in</filename>.
-                    You can use Quilt to create the patch:
-                    <literallayout class='monospaced'>
-     $ quilt new parallelmake.patch
-     Patch patches/parallelmake.patch is now on top
-     $ quilt add Makefile.am
-     File Makefile.am added to patch patches/parallelmake.patch
-                    </literallayout>
-                    For more information on using Quilt, see the
-                    "<link linkend='using-a-quilt-workflow'>Using Quilt in Your Workflow</link>"
-                    section.
-                </para>
-
-                <para>
-                    At this point you need to make the edits to
-                    <filename>Makefile.am</filename> to add the missing
-                    dependency.
-                    For our example, you have to add the following line
-                    to the file:
-                    <literallayout class='monospaced'>
-     tools/snep-send.$(OBJEXT): include/near/dbus.h
-                    </literallayout>
-                </para>
-
-                <para>
-                    Once you have edited the file, use the
-                    <filename>refresh</filename> command to create the patch:
-                    <literallayout class='monospaced'>
-     $ quilt refresh
-     Refreshed patch patches/parallelmake.patch
-                    </literallayout>
-                    Once the patch file exists, you need to add it back to the
-                    originating recipe folder.
-                    Here is an example assuming a top-level
-                    <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                    named <filename>poky</filename>:
-                    <literallayout class='monospaced'>
-     $ cp patches/parallelmake.patch poky/meta/recipes-connectivity/neard/neard
-                    </literallayout>
-                    The final thing you need to do to implement the fix in the
-                    build is to update the "neard" recipe (i.e.
-                    <filename>neard-0.14.bb</filename>) so that the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                    statement includes the patch file.
-                    The recipe file is in the folder above the patch.
-                    Here is what the edited <filename>SRC_URI</filename>
-                    statement would look like:
-                    <literallayout class='monospaced'>
-     SRC_URI = "${KERNELORG_MIRROR}/linux/network/nfc/${BPN}-${PV}.tar.xz \
-                file://neard.in \
-                file://neard.service.in \
-                file://parallelmake.patch \
-               "
-                    </literallayout>
-                </para>
-
-                <para>
-                    With the patch complete and moved to the correct folder and
-                    the <filename>SRC_URI</filename> statement updated, you can
-                    exit the <filename>devshell</filename>:
-                    <literallayout class='monospaced'>
-     $ exit
-                    </literallayout>
-                </para>
-            </section>
-
-            <section id='testing-the-build'>
-                <title>Testing the Build</title>
-
-                <para>
-                    With everything in place, you can get back to trying the
-                    build again locally:
-                    <literallayout class='monospaced'>
-     $ bitbake neard
-                    </literallayout>
-                    This build should succeed.
-                </para>
-
-                <para>
-                    Now you can open up a <filename>devshell</filename> again
-                    and repeat the clean and make operations as follows:
-                    <literallayout class='monospaced'>
-     $ bitbake neard -c devshell
-     $ make clean
-     $ make tools/snep-send.o
-                    </literallayout>
-                    The build should work without issue.
-                </para>
-
-                <para>
-                    As with all solved problems, if they originated upstream,
-                    you need to submit the fix for the recipe in OE-Core and
-                    upstream so that the problem is taken care of at its
-                    source.
-                    See the
-                    "<link linkend='how-to-submit-a-change'>Submitting a Change to the Yocto Project</link>"
-                    section for more information.
-                </para>
-            </section>
-        </section>
-
-        <section id="platdev-gdb-remotedebug">
-            <title>Debugging With the GNU Project Debugger (GDB) Remotely</title>
-
-            <para>
-                GDB allows you to examine running programs, which in turn helps
-                you to understand and fix problems.
-                It also allows you to perform post-mortem style analysis of
-                program crashes.
-                GDB is available as a package within the Yocto Project and is
-                installed in SDK images by default.
-                See the
-                "<ulink url='&YOCTO_DOCS_REF_URL;#ref-images'>Images</ulink>"
-                chapter in the Yocto Project Reference Manual for a description of
-                these images.
-                You can find information on GDB at
-                <ulink url="http://sourceware.org/gdb/"/>.
-                <note><title>Tip</title>
-                    For best results, install debug (<filename>-dbg</filename>)
-                    packages for the applications you are going to debug.
-                    Doing so makes extra debug symbols available that give you
-                    more meaningful output.
-                </note>
-            </para>
-
-            <para>
-                Sometimes, due to memory or disk space constraints, it is not
-                possible to use GDB directly on the remote target to debug
-                applications.
-                These constraints arise because GDB needs to load the debugging
-                information and the binaries of the process being debugged.
-                Additionally, GDB needs to perform many computations to locate
-                information such as function names, variable names and values,
-                stack traces and so forth - even before starting the debugging
-                process.
-                These extra computations place more load on the target system
-                and can alter the characteristics of the program being debugged.
-            </para>
-
-            <para>
-                To help get past the previously mentioned constraints, you can
-                use gdbserver, which runs on the remote target and does not
-                load any debugging information from the debugged process.
-                Instead, a GDB instance processes the debugging information that
-                is run on a remote computer - the host GDB.
-                The host GDB then sends control commands to gdbserver to make
-                it stop or start the debugged program, as well as read or write
-                memory regions of that debugged program.
-                All the debugging information loaded and processed as well
-               as all the heavy debugging is done by the host GDB.
-                Offloading these processes gives the gdbserver running on the
-                target a chance to remain small and fast.
-            </para>
-
-            <para>
-                Because the host GDB is responsible for loading the debugging
-                information and for doing the necessary processing to make
-                actual debugging happen, you have to make sure the host can
-                access the unstripped binaries complete with their debugging
-                information and also be sure the target is compiled with no
-                optimizations.
-                The host GDB must also have local access to all the libraries
-                used by the debugged program.
-                Because gdbserver does not need any local debugging information,
-                the binaries on the remote target can remain stripped.
-                However, the binaries must also be compiled without optimization
-                so they match the host's binaries.
-            </para>
-
-            <para>
-                To remain consistent with GDB documentation and terminology,
-                the binary being debugged on the remote target machine is
-                referred to as the "inferior" binary.
-                For documentation on GDB see the
-                <ulink url="http://sourceware.org/gdb/documentation/">GDB site</ulink>.
-            </para>
-
-            <para>
-                The following steps show you how to debug using the GNU project
-                debugger.
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Configure your build system to construct the
-                        companion debug filesystem:</emphasis></para>
-
-                        <para>In your <filename>local.conf</filename> file, set
-                        the following:
-                        <literallayout class='monospaced'>
-     IMAGE_GEN_DEBUGFS = "1"
-     IMAGE_FSTYPES_DEBUGFS = "tar.bz2"
-                        </literallayout>
-                        These options cause the OpenEmbedded build system
-                        to generate a special companion filesystem fragment,
-                        which contains the matching source and debug symbols to
-                        your deployable filesystem.
-                        The build system does this by looking at what is in the
-                        deployed filesystem, and pulling the corresponding
-                        <filename>-dbg</filename> packages.</para>
-
-                        <para>The companion debug filesystem is not a complete
-                        filesystem, but only contains the debug fragments.
-                        This filesystem must be combined with the full filesystem
-                        for debugging.
-                        Subsequent steps in this procedure show how to combine
-                        the partial filesystem with the full filesystem.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Configure the system to include gdbserver in
-                        the target filesystem:</emphasis></para>
-
-                        <para>Make the following addition in either your
-                        <filename>local.conf</filename> file or in an image
-                        recipe:
-                        <literallayout class='monospaced'>
-     IMAGE_INSTALL_append = " gdbserver"
-                        </literallayout>
-                        The change makes sure the <filename>gdbserver</filename>
-                        package is included.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Build the environment:</emphasis></para>
-
-                        <para>Use the following command to construct the image
-                        and the companion Debug Filesystem:
-                        <literallayout class='monospaced'>
-     $ bitbake <replaceable>image</replaceable>
-                        </literallayout>
-                        Build the cross GDB component and make it available
-                        for debugging.
-                        Build the SDK that matches the image.
-                        Building the SDK is best for a production build
-                        that can be used later for debugging, especially
-                        during long term maintenance:
-                        <literallayout class='monospaced'>
-     $ bitbake -c populate_sdk <replaceable>image</replaceable>
-                        </literallayout></para>
-
-                        <para>Alternatively, you can build the minimal
-                        toolchain components that match the target.
-                        Doing so creates a smaller than typical SDK and only
-                        contains a minimal set of components with which to
-                        build simple test applications, as well as run the
-                        debugger:
-                        <literallayout class='monospaced'>
-     $ bitbake meta-toolchain
-                        </literallayout></para>
-
-                        <para>A final method is to build Gdb itself within
-                        the build system:
-                        <literallayout class='monospaced'>
-     $ bitbake gdb-cross-<replaceable>architecture</replaceable>
-                        </literallayout>
-                        Doing so produces a temporary copy of
-                        <filename>cross-gdb</filename> you can use for
-                        debugging during development.
-                        While this is the quickest approach, the two previous
-                        methods in this step are better when considering
-                        long-term maintenance strategies.
-                        <note>
-                            If you run
-                            <filename>bitbake gdb-cross</filename>, the
-                            OpenEmbedded build system suggests the actual
-                            image (e.g. <filename>gdb-cross-i586</filename>).
-                            The suggestion is usually the actual name you want
-                            to use.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Set up the</emphasis>&nbsp;<filename>debugfs</filename></para>
-
-                        <para>Run the following commands to set up the
-                        <filename>debugfs</filename>:
-                        <literallayout class='monospaced'>
-     $ mkdir debugfs
-     $ cd debugfs
-     $ tar xvfj <replaceable>build-dir</replaceable>/tmp-glibc/deploy/images/<replaceable>machine</replaceable>/<replaceable>image</replaceable>.rootfs.tar.bz2
-     $ tar xvfj <replaceable>build-dir</replaceable>/tmp-glibc/deploy/images/<replaceable>machine</replaceable>/<replaceable>image</replaceable>-dbg.rootfs.tar.bz2
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Set up GDB</emphasis></para>
-
-                        <para>Install the SDK (if you built one) and then
-                        source the correct environment file.
-                        Sourcing the environment file puts the SDK in your
-                        <filename>PATH</filename> environment variable.</para>
-
-                        <para>If you are using the build system, Gdb is
-                        located in
-                        <replaceable>build-dir</replaceable>/tmp/sysroots/<replaceable>host</replaceable>/usr/bin/<replaceable>architecture</replaceable>/<replaceable>architecture</replaceable>-gdb
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Boot the target:</emphasis></para>
-
-                        <para>For information on how to run QEMU, see the
-                        <ulink url='http://wiki.qemu.org/Documentation/GettingStartedDevelopers'>QEMU Documentation</ulink>.
-                        <note>
-                            Be sure to verify that your host can access the
-                            target via TCP.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Debug a program:</emphasis></para>
-
-                        <para>Debugging a program involves running gdbserver
-                        on the target and then running Gdb on the host.
-                        The example in this step debugs
-                        <filename>gzip</filename>:
-                        <literallayout class='monospaced'>
-     root@qemux86:~# gdbserver localhost:1234 /bin/gzip —help
-                        </literallayout>
-                        For additional gdbserver options, see the
-                        <ulink url='https://www.gnu.org/software/gdb/documentation/'>GDB Server Documentation</ulink>.
-                        </para>
-
-                        <para>After running gdbserver on the target, you need
-                        to run Gdb on the host and configure it and connect to
-                        the target.
-                        Use these commands:
-                        <literallayout class='monospaced'>
-     $ cd <replaceable>directory-holding-the-debugfs-directory</replaceable>
-     $ <replaceable>arch</replaceable>-gdb
-
-     (gdb) set sysroot debugfs
-     (gdb) set substitute-path /usr/src/debug debugfs/usr/src/debug
-     (gdb) target remote <replaceable>IP-of-target</replaceable>:1234
-                        </literallayout>
-                        At this point, everything should automatically load
-                        (i.e. matching binaries, symbols and headers).
-                        <note>
-                            The Gdb <filename>set</filename> commands in the
-                            previous example can be placed into the users
-                           <filename>~/.gdbinit</filename> file.
-                            Upon starting, Gdb automatically runs whatever
-                            commands are in that file.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Deploying without a full image
-                        rebuild:</emphasis></para>
-
-                        <para>In many cases, during development you want a
-                        quick method to deploy a new binary to the target and
-                        debug it, without waiting for a full image build.
-                        </para>
-
-                        <para>One approach to solving this situation is to
-                        just build the component you want to debug.
-                        Once you have built the component, copy the
-                        executable directly to both the target and the
-                        host <filename>debugfs</filename>.</para>
-
-                        <para>If the binary is processed through the debug
-                        splitting in OpenEmbedded, you should also
-                        copy the debug items (i.e. <filename>.debug</filename>
-                        contents and corresponding
-                        <filename>/usr/src/debug</filename> files)
-                        from the work directory.
-                        Here is an example:
-                        <literallayout class='monospaced'>
-     $ bitbake bash
-     $ bitbake -c devshell bash
-     $ cd ..
-     $ scp packages-split/bash/bin/bash <replaceable>target</replaceable>:/bin/bash
-     $ cp -a packages-split/bash-dbg/* <replaceable>path</replaceable>/debugfs
-                        </literallayout>
-                        </para></listitem>
-                </orderedlist>
-            </para>
-        </section>
-
-        <section id='debugging-with-the-gnu-project-debugger-gdb-on-the-target'>
-            <title>Debugging with the GNU Project Debugger (GDB) on the Target</title>
-
-            <para>
-                The previous section addressed using GDB remotely for debugging
-                purposes, which is the most usual case due to the inherent
-                hardware limitations on many embedded devices.
-                However, debugging in the target hardware itself is also
-                possible with more powerful devices.
-                This section describes what you need to do in order to support
-                using GDB to debug on the target hardware.
-            </para>
-
-            <para>
-                To support this kind of debugging, you need do the following:
-                <itemizedlist>
-                    <listitem><para>
-                        Ensure that GDB is on the target.
-                        You can do this by adding "gdb" to
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_INSTALL'><filename>IMAGE_INSTALL</filename></ulink>:
-                        <literallayout class='monospaced'>
-     IMAGE_INSTALL_append = " gdb"
-                        </literallayout>
-                        Alternatively, you can add "tools-debug" to
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></ulink>:
-                        <literallayout class='monospaced'>
-     IMAGE_FEATURES_append = " tools-debug"
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        Ensure that debug symbols are present.
-                        You can make sure these symbols are present by
-                        installing <filename>-dbg</filename>:
-                        <literallayout class='monospaced'>
-     IMAGE_INSTALL_append = " <replaceable>packagename</replaceable>-dbg"
-                        </literallayout>
-                        Alternatively, you can do the following to include all
-                        the debug symbols:
-                        <literallayout class='monospaced'>
-     IMAGE_FEATURES_append = " dbg-pkgs"
-                        </literallayout>
-                        </para></listitem>
-                </itemizedlist>
-                <note>
-                    To improve the debug information accuracy, you can reduce
-                    the level of optimization used by the compiler.
-                    For example, when adding the following line to your
-                    <filename>local.conf</filename> file, you will reduce
-                    optimization from
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-FULL_OPTIMIZATION'><filename>FULL_OPTIMIZATION</filename></ulink>
-                    of "-O2" to
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-DEBUG_OPTIMIZATION'><filename>DEBUG_OPTIMIZATION</filename></ulink>
-                    of "-O -fno-omit-frame-pointer":
-                    <literallayout class='monospaced'>
-     DEBUG_BUILD = "1"
-                    </literallayout>
-                    Consider that this will reduce the application's performance
-                    and is recommended only for debugging purposes.
-                </note>
-            </para>
-        </section>
-
-        <section id='dev-other-debugging-others'>
-            <title>Other Debugging Tips</title>
-
-            <para>
-                Here are some other tips that you might find useful:
-                <itemizedlist>
-                    <listitem><para>
-                        When adding new packages, it is worth watching for
-                        undesirable items making their way into compiler command
-                        lines.
-                        For example, you do not want references to local system
-                        files like
-                        <filename>/usr/lib/</filename> or
-                        <filename>/usr/include/</filename>.
-                        </para></listitem>
-                    <listitem><para>
-                        If you want to remove the <filename>psplash</filename>
-                        boot splashscreen,
-                        add <filename>psplash=false</filename> to  the kernel
-                        command line.
-                        Doing so prevents <filename>psplash</filename> from
-                        loading and thus allows you to see the console.
-                        It is also possible to switch out of the splashscreen by
-                        switching the virtual console (e.g. Fn+Left or Fn+Right
-                        on a Zaurus).
-                        </para></listitem>
-                    <listitem><para>
-                        Removing
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-TMPDIR'><filename>TMPDIR</filename></ulink>
-                        (usually <filename>tmp/</filename>, within the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>)
-                        can often fix temporary build issues.
-                        Removing <filename>TMPDIR</filename> is usually a
-                        relatively cheap operation, because task output will be
-                        cached in
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SSTATE_DIR'><filename>SSTATE_DIR</filename></ulink>
-                        (usually <filename>sstate-cache/</filename>, which is
-                        also in the Build Directory).
-                        <note>
-                            Removing <filename>TMPDIR</filename> might be a
-                            workaround rather than a fix.
-                            Consequently, trying to determine the underlying
-                            cause of an issue before removing the directory is
-                            a good idea.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        Understanding how a feature is used in practice within
-                        existing recipes can be very helpful.
-                        It is recommended that you configure some method that
-                        allows you to quickly search through files.</para>
-
-                        <para>Using GNU Grep, you can use the following shell
-                        function to recursively search through common
-                        recipe-related files, skipping binary files,
-                        <filename>.git</filename> directories, and the
-                        Build Directory (assuming its name starts with
-                        "build"):
-                        <literallayout class='monospaced'>
-     g() {
-         grep -Ir \
-              --exclude-dir=.git \
-              --exclude-dir='build*' \
-              --include='*.bb*' \
-              --include='*.inc*' \
-              --include='*.conf*' \
-              --include='*.py*' \
-              "$@"
-     }
-                        </literallayout>
-                        Following are some usage examples:
-                        <literallayout class='monospaced'>
-     $ g FOO    # Search recursively for "FOO"
-     $ g -i foo # Search recursively for "foo", ignoring case
-     $ g -w FOO # Search recursively for "FOO" as a word, ignoring e.g. "FOOBAR"
-                        </literallayout>
-                        If figuring out how some feature works requires a lot of
-                        searching, it might indicate that the documentation
-                        should be extended or improved.
-                        In such cases, consider filing a documentation bug using
-                        the Yocto Project implementation of
-                        <ulink url='https://bugzilla.yoctoproject.org/'>Bugzilla</ulink>.
-                        For information on how to submit a bug against
-                        the Yocto Project, see the Yocto Project Bugzilla
-                        <ulink url='&YOCTO_WIKI_URL;/wiki/Bugzilla_Configuration_and_Bug_Tracking'>wiki page</ulink>
-                        and the
-                        "<link linkend='submitting-a-defect-against-the-yocto-project'>Submitting a Defect Against the Yocto Project</link>"
-                        section.
-                        <note>
-                            The manuals might not be the right place to document
-                            variables that are purely internal and have a
-                            limited scope (e.g. internal variables used to
-                            implement a single <filename>.bbclass</filename>
-                            file).
-                        </note>
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-    </section>
-
-    <section id='making-changes-to-the-yocto-project'>
-        <title>Making Changes to the Yocto Project</title>
-
-        <para>
-            Because the Yocto Project is an open-source, community-based
-            project, you can effect changes to the project.
-            This section presents procedures that show you how to submit
-            a defect against the project and how to submit a change.
-        </para>
-
-        <section id='submitting-a-defect-against-the-yocto-project'>
-            <title>Submitting a Defect Against the Yocto Project</title>
-
-            <para>
-                Use the Yocto Project implementation of
-                <ulink url='http://www.bugzilla.org/about/'>Bugzilla</ulink>
-                to submit a defect (bug) against the Yocto Project.
-                For additional information on this implementation of Bugzilla see the
-                "<ulink url='&YOCTO_DOCS_REF_URL;#resources-bugtracker'>Yocto Project Bugzilla</ulink>"
-                section in the Yocto Project Reference Manual.
-                For more detail on any of the following steps, see the Yocto Project
-                <ulink url='&YOCTO_WIKI_URL;/wiki/Bugzilla_Configuration_and_Bug_Tracking'>Bugzilla wiki page</ulink>.
-            </para>
-
-            <para>
-                Use the following general steps to submit a bug"
-
-                <orderedlist>
-                    <listitem><para>
-                        Open the Yocto Project implementation of
-                        <ulink url='&YOCTO_BUGZILLA_URL;'>Bugzilla</ulink>.
-                        </para></listitem>
-                    <listitem><para>
-                        Click "File a Bug" to enter a new bug.
-                        </para></listitem>
-                    <listitem><para>
-                        Choose the appropriate "Classification", "Product", and
-                        "Component" for which the bug was found.
-                        Bugs for the Yocto Project fall into one of several
-                        classifications, which in turn break down into several
-                        products and components.
-                        For example, for a bug against the
-                        <filename>meta-intel</filename> layer, you would choose
-                        "Build System, Metadata &amp; Runtime", "BSPs", and
-                        "bsps-meta-intel", respectively.
-                        </para></listitem>
-                    <listitem><para>
-                        Choose the "Version" of the Yocto Project for which you found
-                        the bug (e.g. &DISTRO;).
-                        </para></listitem>
-                    <listitem><para>
-                        Determine and select the "Severity" of the bug.
-                        The severity indicates how the bug impacted your work.
-                        </para></listitem>
-                    <listitem><para>
-                        Choose the "Hardware" that the bug impacts.
-                        </para></listitem>
-                    <listitem><para>
-                        Choose the "Architecture" that the bug impacts.
-                        </para></listitem>
-                    <listitem><para>
-                        Choose a "Documentation change" item for the bug.
-                        Fixing a bug might or might not affect the Yocto Project
-                        documentation.
-                        If you are unsure of the impact to the documentation, select
-                        "Don't Know".
-                        </para></listitem>
-                    <listitem><para>
-                        Provide a brief "Summary" of the bug.
-                        Try to limit your summary to just a line or two and be sure
-                        to capture the essence of the bug.
-                        </para></listitem>
-                    <listitem><para>
-                        Provide a detailed "Description" of the bug.
-                        You should provide as much detail as you can about the context,
-                        behavior, output, and so forth that surrounds the bug.
-                        You can even attach supporting files for output from logs by
-                        using the "Add an attachment" button.
-                        </para></listitem>
-                    <listitem><para>
-                        Click the "Submit Bug" button submit the bug.
-                        A new Bugzilla number is assigned to the bug and the defect
-                        is logged in the bug tracking system.
-                        </para></listitem>
-                </orderedlist>
-                Once you file a bug, the bug is processed by the Yocto Project Bug
-                Triage Team and further details concerning the bug are assigned
-                (e.g. priority and owner).
-                You are the "Submitter" of the bug and any further categorization,
-                progress, or comments on the bug result in Bugzilla sending you an
-                automated email concerning the particular change or progress to the
-                bug.
-            </para>
-        </section>
-
-        <section id='how-to-submit-a-change'>
-            <title>Submitting a Change to the Yocto Project</title>
-
-            <para>
-                Contributions to the Yocto Project and OpenEmbedded are very welcome.
-                Because the system is extremely configurable and flexible, we recognize
-                that developers will want to extend, configure or optimize it for
-                their specific uses.
-            </para>
-
-            <para>
-                The Yocto Project uses a mailing list and a patch-based workflow
-                that is similar to the Linux kernel but contains important
-                differences.
-                In general, a mailing list exists through which you can submit
-                patches.
-                You should send patches to the appropriate mailing list so that they
-                can be reviewed and merged by the appropriate maintainer.
-                The specific mailing list you need to use depends on the
-                location of the code you are changing.
-                Each component (e.g. layer) should have a
-                <filename>README</filename> file that indicates where to send
-                the changes and which process to follow.
-            </para>
-
-            <para>
-                You can send the patch to the mailing list using whichever approach
-                you feel comfortable with to generate the patch.
-                Once sent, the patch is usually reviewed by the community at large.
-                If somebody has concerns with the patch, they will usually voice
-                their concern over the mailing list.
-                If a patch does not receive any negative reviews, the maintainer of
-                the affected layer typically takes the patch, tests it, and then
-                based on successful testing, merges the patch.
-            </para>
-
-            <para id='figuring-out-the-mailing-list-to-use'>
-                The "poky" repository, which is the Yocto Project's reference build
-                environment, is a hybrid repository that contains several
-                individual pieces (e.g. BitBake, Metadata, documentation,
-                and so forth) built using the combo-layer tool.
-                The upstream location used for submitting changes varies by
-                component:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>Core Metadata:</emphasis>
-                        Send your patch to the
-                        <ulink url='http://lists.openembedded.org/mailman/listinfo/openembedded-core'>openembedded-core</ulink>
-                        mailing list.  For example, a change to anything under
-                        the <filename>meta</filename> or
-                        <filename>scripts</filename> directories should be sent
-                        to this mailing list.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>BitBake:</emphasis>
-                        For changes to BitBake (i.e. anything under the
-                        <filename>bitbake</filename> directory), send your patch
-                        to the
-                        <ulink url='http://lists.openembedded.org/mailman/listinfo/bitbake-devel'>bitbake-devel</ulink>
-                        mailing list.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>"meta-*" trees:</emphasis>
-                        These trees contain Metadata.
-                        Use the
-                        <ulink url='https://lists.yoctoproject.org/listinfo/poky'>poky</ulink>
-                        mailing list.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                For changes to other layers hosted in the Yocto Project source
-                repositories (i.e. <filename>yoctoproject.org</filename>), tools,
-                and the Yocto Project documentation, use the
-                <ulink url='https://lists.yoctoproject.org/listinfo/yocto'>Yocto Project</ulink>
-                general mailing list.
-                <note>
-                    Sometimes a layer's documentation specifies to use a
-                    particular mailing list.
-                    If so, use that list.
-                </note>
-                For additional recipes that do not fit into the core Metadata, you
-                should determine which layer the recipe should go into and submit
-                the change in the manner recommended by the documentation (e.g.
-                the <filename>README</filename> file) supplied with the layer.
-                If in doubt, please ask on the Yocto general mailing list or on
-                the openembedded-devel mailing list.
-            </para>
-
-            <para>
-                You can also push a change upstream and request a maintainer to
-                pull the change into the component's upstream repository.
-                You do this by pushing to a contribution repository that is upstream.
-                See the
-                "<ulink url='&YOCTO_DOCS_OM_URL;#gs-git-workflows-and-the-yocto-project'>Git Workflows and the Yocto Project</ulink>"
-                section in the Yocto Project Overview and Concepts Manual for additional
-                concepts on working in the Yocto Project development environment.
-            </para>
-
-            <para>
-                Two commonly used testing repositories exist for
-                OpenEmbedded-Core:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>"ross/mut" branch:</emphasis>
-                        The "mut" (master-under-test) tree
-                        exists in the <filename>poky-contrib</filename> repository
-                        in the
-                        <ulink url='&YOCTO_GIT_URL;'>Yocto Project source repositories</ulink>.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>"master-next" branch:</emphasis>
-                        This branch is part of the main
-                        "poky" repository in the Yocto Project source repositories.
-                        </para></listitem>
-                </itemizedlist>
-                Maintainers use these branches to test submissions prior to merging
-                patches.
-                Thus, you can get an idea of the status of a patch based on
-                whether the patch has been merged into one of these branches.
-                <note>
-                    This system is imperfect and changes can sometimes get lost in the
-                    flow.
-                    Asking about the status of a patch or change is reasonable if the
-                    change has been idle for a while with no feedback.
-                    The Yocto Project does have plans to use
-                    <ulink url='https://en.wikipedia.org/wiki/Patchwork_(software)'>Patchwork</ulink>
-                    to track the status of patches and also to automatically preview
-                    patches.
-                </note>
-            </para>
-
-            <para>
-                The following sections provide procedures for submitting a change.
-            </para>
-
-            <section id='pushing-a-change-upstream'>
-                <title>Using Scripts to Push a Change Upstream and Request a Pull</title>
-
-                <para>
-                    Follow this procedure to push a change to an upstream "contrib"
-                    Git repository:
-                    <note>
-                        You can find general Git information on how to push a change
-                        upstream in the
-                        <ulink url='http://git-scm.com/book/en/v2/Distributed-Git-Distributed-Workflows'>Git Community Book</ulink>.
-                    </note>
-                    <orderedlist>
-                        <listitem><para>
-                            <emphasis>Make Your Changes Locally:</emphasis>
-                            Make your changes in your local Git repository.
-                            You should make small, controlled, isolated changes.
-                            Keeping changes small and isolated aids review,
-                            makes merging/rebasing easier and keeps the change
-                            history clean should anyone need to refer to it in
-                            future.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Stage Your Changes:</emphasis>
-                            Stage your changes by using the <filename>git add</filename>
-                            command on each file you changed.
-                            </para></listitem>
-                        <listitem><para id='making-sure-you-have-correct-commit-information'>
-                            <emphasis>Commit Your Changes:</emphasis>
-                            Commit the change by using the
-                            <filename>git commit</filename> command.
-                            Make sure your commit information follows standards by
-                            following these accepted conventions:
-                            <itemizedlist>
-                                <listitem><para>
-                                    Be sure to include a "Signed-off-by:" line in the
-                                    same style as required by the Linux kernel.
-                                    Adding this line signifies that you, the submitter,
-                                    have agreed to the Developer's Certificate of
-                                    Origin 1.1 as follows:
-                                    <literallayout class='monospaced'>
-     Developer's Certificate of Origin 1.1
-
-     By making a contribution to this project, I certify that:
-
-     (a) The contribution was created in whole or in part by me and I
-         have the right to submit it under the open source license
-         indicated in the file; or
-
-     (b) The contribution is based upon previous work that, to the best
-         of my knowledge, is covered under an appropriate open source
-         license and I have the right under that license to submit that
-         work with modifications, whether created in whole or in part
-         by me, under the same open source license (unless I am
-         permitted to submit under a different license), as indicated
-         in the file; or
-
-     (c) The contribution was provided directly to me by some other
-         person who certified (a), (b) or (c) and I have not modified
-         it.
-
-     (d) I understand and agree that this project and the contribution
-         are public and that a record of the contribution (including all
-         personal information I submit with it, including my sign-off) is
-         maintained indefinitely and may be redistributed consistent with
-         this project or the open source license(s) involved.
-                                    </literallayout>
-                                    </para></listitem>
-                                <listitem><para>
-                                    Provide a single-line summary of the change.
-                                    and,
-                                    if more explanation is needed, provide more
-                                    detail in the body of the commit.
-                                    This summary is typically viewable in the
-                                    "shortlist" of changes.
-                                    Thus, providing something short and descriptive
-                                    that gives the reader a summary of the change is
-                                    useful when viewing a list of many commits.
-                                    You should prefix this short description with the
-                                    recipe name (if changing a recipe), or else with
-                                    the short form path to the file being changed.
-                                    </para></listitem>
-                                <listitem><para>
-                                    For the body of the commit message, provide
-                                    detailed information that describes what you
-                                    changed, why you made the change, and the approach
-                                    you used.
-                                    It might also be helpful if you mention how you
-                                    tested the change.
-                                    Provide as much detail as you can in the body of
-                                    the commit message.
-                                    <note>
-                                        You do not need to provide a more detailed
-                                        explanation of a change if the change is
-                                        minor to the point of the single line
-                                        summary providing all the information.
-                                    </note>
-                                    </para></listitem>
-                                <listitem><para>
-                                    If the change addresses a specific bug or issue
-                                    that is associated with a bug-tracking ID,
-                                    include a reference to that ID in your detailed
-                                    description.
-                                    For example, the Yocto Project uses a specific
-                                    convention for bug references - any commit that
-                                    addresses a specific bug should use the following
-                                    form for the detailed description.
-                                    Be sure to use the actual bug-tracking ID from
-                                    Bugzilla for
-                                    <replaceable>bug-id</replaceable>:
-                                    <literallayout class='monospaced'>
-     Fixes [YOCTO #<replaceable>bug-id</replaceable>]
-
-     <replaceable>detailed description of change</replaceable>
-                                    </literallayout>
-                                    </para></listitem>
-                            </itemizedlist>
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Push Your Commits to a "Contrib" Upstream:</emphasis>
-                            If you have arranged for permissions to push to an
-                            upstream contrib repository, push the change to that
-                            repository:
-                            <literallayout class='monospaced'>
-     $ git push <replaceable>upstream_remote_repo</replaceable> <replaceable>local_branch_name</replaceable>
-                            </literallayout>
-                            For example, suppose you have permissions to push into the
-                            upstream <filename>meta-intel-contrib</filename>
-                            repository and you are working in a local branch named
-                            <replaceable>your_name</replaceable><filename>/README</filename>.
-                            The following command pushes your local commits to the
-                            <filename>meta-intel-contrib</filename> upstream
-                            repository and puts the commit in a branch named
-                            <replaceable>your_name</replaceable><filename>/README</filename>:
-                            <literallayout class='monospaced'>
-     $ git push meta-intel-contrib <replaceable>your_name</replaceable>/README
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para id='push-determine-who-to-notify'>
-                            <emphasis>Determine Who to Notify:</emphasis>
-                            Determine the maintainer or the mailing list
-                            that you need to notify for the change.</para>
-
-                            <para>Before submitting any change, you need to be sure
-                            who the maintainer is or what mailing list that you need
-                            to notify.
-                            Use either these methods to find out:
-                            <itemizedlist>
-                                <listitem><para>
-                                    <emphasis>Maintenance File:</emphasis>
-                                    Examine the <filename>maintainers.inc</filename>
-                                    file, which is located in the
-                                    <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                                    at
-                                    <filename>meta/conf/distro/include</filename>,
-                                    to see who is responsible for code.
-                                    </para></listitem>
-                                <listitem><para>
-                                    <emphasis>Search by File:</emphasis>
-                                    Using <ulink url='&YOCTO_DOCS_OM_URL;#git'>Git</ulink>,
-                                    you can enter the following command to bring up a
-                                    short list of all commits against a specific file:
-                                    <literallayout class='monospaced'>
-     git shortlog -- <replaceable>filename</replaceable>
-                                    </literallayout>
-                                    Just provide the name of the file for which you
-                                    are interested.
-                                    The information returned is not ordered by history
-                                    but does include a list of everyone who has
-                                    committed grouped by name.
-                                    From the list, you can see who is responsible for
-                                    the bulk of the changes against the file.
-                                    </para></listitem>
-                                <listitem><para>
-                                    <emphasis>Examine the List of Mailing Lists:</emphasis>
-                                    For a list of the Yocto Project and related mailing
-                                    lists, see the
-                                    "<ulink url='&YOCTO_DOCS_REF_URL;#resources-mailinglist'>Mailing lists</ulink>"
-                                    section in the Yocto Project Reference Manual.
-                                    </para></listitem>
-                            </itemizedlist>
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Make a Pull Request:</emphasis>
-                            Notify the maintainer or the mailing list that you have
-                            pushed a change by making a pull request.</para>
-
-                            <para>The Yocto Project provides two scripts that
-                            conveniently let you generate and send pull requests to the
-                            Yocto Project.
-                            These scripts are <filename>create-pull-request</filename>
-                            and <filename>send-pull-request</filename>.
-                            You can find these scripts in the
-                            <filename>scripts</filename> directory within the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                            (e.g. <filename>~/poky/scripts</filename>).
-                            </para>
-
-                            <para>Using these scripts correctly formats the requests
-                            without introducing any whitespace or HTML formatting.
-                            The maintainer that receives your patches either directly
-                            or through the mailing list needs to be able to save and
-                            apply them directly from your emails.
-                            Using these scripts is the preferred method for sending
-                            patches.</para>
-
-                            <para>First, create the pull request.
-                            For example, the following command runs the script,
-                            specifies the upstream repository in the contrib directory
-                            into which you pushed the change, and provides a subject
-                            line in the created patch files:
-                            <literallayout class='monospaced'>
-     $ ~/poky/scripts/create-pull-request -u meta-intel-contrib -s "Updated Manual Section Reference in README"
-                            </literallayout>
-                            Running this script forms
-                            <filename>*.patch</filename> files in a folder named
-                            <filename>pull-</filename><replaceable>PID</replaceable>
-                            in the current directory.
-                            One of the patch files is a cover letter.</para>
-
-                            <para>Before running the
-                            <filename>send-pull-request</filename> script, you must
-                            edit the cover letter patch to insert information about
-                            your change.
-                            After editing the cover letter, send the pull request.
-                            For example, the following command runs the script and
-                            specifies the patch directory and email address.
-                            In this example, the email address is a mailing list:
-                            <literallayout class='monospaced'>
-     $ ~/poky/scripts/send-pull-request -p ~/meta-intel/pull-10565 -t meta-intel@yoctoproject.org
-                            </literallayout>
-                            You need to follow the prompts as the script is
-                            interactive.
-                            <note>
-                                For help on using these scripts, simply provide the
-                                <filename>-h</filename> argument as follows:
-                                <literallayout class='monospaced'>
-     $ poky/scripts/create-pull-request -h
-     $ poky/scripts/send-pull-request -h
-                                </literallayout>
-                            </note>
-                            </para></listitem>
-                    </orderedlist>
-                </para>
-            </section>
-
-            <section id='submitting-a-patch'>
-                <title>Using Email to Submit a Patch</title>
-
-                <para>
-                    You can submit patches without using the
-                    <filename>create-pull-request</filename> and
-                    <filename>send-pull-request</filename> scripts described in the
-                    previous section.
-                    However, keep in mind, the preferred method is to use the scripts.
-                </para>
-
-                <para>
-                    Depending on the components changed, you need to submit the email
-                    to a specific mailing list.
-                    For some guidance on which mailing list to use, see the
-                    <link linkend='figuring-out-the-mailing-list-to-use'>list</link>
-                    at the beginning of this section.
-                    For a description of all the available mailing lists, see the
-                    "<ulink url='&YOCTO_DOCS_REF_URL;#resources-mailinglist'>Mailing Lists</ulink>"
-                    section in the Yocto Project Reference Manual.
-                </para>
-
-                <para>
-                    Here is the general procedure on how to submit a patch through
-                    email without using the scripts:
-                    <orderedlist>
-                        <listitem><para>
-                            <emphasis>Make Your Changes Locally:</emphasis>
-                            Make your changes in your local Git repository.
-                            You should make small, controlled, isolated changes.
-                            Keeping changes small and isolated aids review,
-                            makes merging/rebasing easier and keeps the change
-                            history clean should anyone need to refer to it in
-                            future.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Stage Your Changes:</emphasis>
-                            Stage your changes by using the <filename>git add</filename>
-                            command on each file you changed.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Commit Your Changes:</emphasis>
-                            Commit the change by using the
-                            <filename>git commit --signoff</filename> command.
-                            Using the <filename>--signoff</filename> option identifies
-                            you as the person making the change and also satisfies
-                            the Developer's Certificate of Origin (DCO) shown earlier.
-                            </para>
-
-                            <para>When you form a commit, you must follow certain
-                            standards established by the Yocto Project development
-                            team.
-                            See
-                            <link linkend='making-sure-you-have-correct-commit-information'>Step 3</link>
-                            in the previous section for information on how to
-                            provide commit information that meets Yocto Project
-                            commit message standards.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Format the Commit:</emphasis>
-                            Format the commit into an email message.
-                            To format commits, use the
-                            <filename>git format-patch</filename> command.
-                            When you provide the command, you must include a revision
-                            list or a number of patches as part of the command.
-                            For example, either of these two commands takes your most
-                            recent single commit and formats it as an email message in
-                            the current directory:
-                            <literallayout class='monospaced'>
-     $ git format-patch -1
-                            </literallayout>
-                            or
-                            <literallayout class='monospaced'>
-     $ git format-patch HEAD~
-                            </literallayout></para>
-
-                            <para>After the command is run, the current directory
-                            contains a numbered <filename>.patch</filename> file for
-                            the commit.</para>
-
-                            <para>If you provide several commits as part of the
-                            command, the <filename>git format-patch</filename> command
-                            produces a series of numbered files in the current
-                            directory – one for each commit.
-                            If you have more than one patch, you should also use the
-                            <filename>--cover</filename> option with the command,
-                            which generates a cover letter as the first "patch" in
-                            the series.
-                            You can then edit the cover letter to provide a
-                            description for the series of patches.
-                            For information on the
-                            <filename>git format-patch</filename> command,
-                            see <filename>GIT_FORMAT_PATCH(1)</filename> displayed
-                            using the <filename>man git-format-patch</filename>
-                            command.
-                            <note>
-                                If you are or will be a frequent contributor to the
-                                Yocto Project or to OpenEmbedded, you might consider
-                                requesting a contrib area and the necessary associated
-                                rights.
-                            </note>
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Import the Files Into Your Mail Client:</emphasis>
-                            Import the files into your mail client by using the
-                            <filename>git send-email</filename> command.
-                            <note>
-                                In order to use <filename>git send-email</filename>,
-                                you must have the proper Git packages installed on
-                                your host.
-                                For Ubuntu, Debian, and Fedora the package is
-                                <filename>git-email</filename>.
-                            </note></para>
-
-                            <para>The <filename>git send-email</filename> command
-                            sends email by using a local or remote Mail Transport Agent
-                            (MTA) such as <filename>msmtp</filename>,
-                            <filename>sendmail</filename>, or through a direct
-                            <filename>smtp</filename> configuration in your Git
-                            <filename>~/.gitconfig</filename> file.
-                            If you are submitting patches through email only, it is
-                            very important that you submit them without any whitespace
-                            or HTML formatting that either you or your mailer
-                            introduces.
-                            The maintainer that receives your patches needs to be able
-                            to save and apply them directly from your emails.
-                            A good way to verify that what you are sending will be
-                            applicable by the maintainer is to do a dry run and send
-                            them to yourself and then save and apply them as the
-                            maintainer would.</para>
-
-                            <para>The <filename>git send-email</filename> command is
-                            the preferred method for sending your patches using
-                            email since there is no risk of compromising whitespace
-                            in the body of the message, which can occur when you use
-                            your own mail client.
-                            The command also has several options that let you
-                            specify recipients and perform further editing of the
-                            email message.
-                            For information on how to use the
-                            <filename>git send-email</filename> command,
-                            see <filename>GIT-SEND-EMAIL(1)</filename> displayed using
-                            the <filename>man git-send-email</filename> command.
-                            </para></listitem>
-                    </orderedlist>
-                </para>
-            </section>
-        </section>
-    </section>
-
-    <section id='working-with-licenses'>
-        <title>Working With Licenses</title>
-
-        <para>
-            As mentioned in the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#licensing'>Licensing</ulink>"
-            section in the Yocto Project Overview and Concepts Manual,
-            open source projects are open to the public and they
-            consequently have different licensing structures in place.
-            This section describes the mechanism by which the
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>
-            tracks changes to licensing text and covers how to maintain open
-            source license compliance during your project's lifecycle.
-            The section also describes how to enable commercially licensed
-            recipes, which by default are disabled.
-        </para>
-
-        <section id="usingpoky-configuring-LIC_FILES_CHKSUM">
-            <title>Tracking License Changes</title>
-
-            <para>
-                The license of an upstream project might change in the future.
-                In order to prevent these changes going unnoticed, the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-LIC_FILES_CHKSUM'><filename>LIC_FILES_CHKSUM</filename></ulink>
-                variable tracks changes to the license text. The checksums are
-                validated at the end of the configure step, and if the
-                checksums do not match, the build will fail.
-            </para>
-
-            <section id="usingpoky-specifying-LIC_FILES_CHKSUM">
-                <title>Specifying the <filename>LIC_FILES_CHKSUM</filename> Variable</title>
-
-                <para>
-                    The <filename>LIC_FILES_CHKSUM</filename>
-                    variable contains checksums of the license text in the
-                    source code for the recipe.
-                    Following is an example of how to specify
-                    <filename>LIC_FILES_CHKSUM</filename>:
-                    <literallayout class='monospaced'>
-     LIC_FILES_CHKSUM = "file://COPYING;md5=xxxx \
-                         file://licfile1.txt;beginline=5;endline=29;md5=yyyy \
-                         file://licfile2.txt;endline=50;md5=zzzz \
-                         ..."
-                    </literallayout>
-                    <note><title>Notes</title>
-                        <itemizedlist>
-                            <listitem><para>
-                                When using "beginline" and "endline", realize
-                                that line numbering begins with one and not
-                                zero.
-                                Also, the included lines are inclusive (i.e.
-                                lines five through and including 29 in the
-                                previous example for
-                                <filename>licfile1.txt</filename>).
-                                </para></listitem>
-                            <listitem><para>
-                                When a license check fails, the selected license
-                                text is included as part of the QA message.
-                                Using this output, you can determine the exact
-                                start and finish for the needed license text.
-                                </para></listitem>
-                        </itemizedlist>
-                    </note>
-                </para>
-
-                <para>
-                    The build system uses the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-S'><filename>S</filename></ulink>
-                    variable as the default directory when searching files
-                    listed in <filename>LIC_FILES_CHKSUM</filename>.
-                    The previous example employs the default directory.
-                </para>
-
-                <para>
-                    Consider this next example:
-                    <literallayout class='monospaced'>
-     LIC_FILES_CHKSUM = "file://src/ls.c;beginline=5;endline=16;\
-                                         md5=bb14ed3c4cda583abc85401304b5cd4e"
-     LIC_FILES_CHKSUM = "file://${WORKDIR}/license.html;md5=5c94767cedb5d6987c902ac850ded2c6"
-                    </literallayout>
-                </para>
-
-                <para>
-                    The first line locates a file in
-                    <filename>${S}/src/ls.c</filename> and isolates lines five
-                    through 16 as license text.
-                    The second line refers to a file in
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink>.
-                </para>
-
-                <para>
-                    Note that <filename>LIC_FILES_CHKSUM</filename> variable is
-                    mandatory for all recipes, unless the
-                    <filename>LICENSE</filename> variable is set to "CLOSED".
-                </para>
-            </section>
-
-            <section id="usingpoky-LIC_FILES_CHKSUM-explanation-of-syntax">
-                <title>Explanation of Syntax</title>
-
-                <para>
-                    As mentioned in the previous section, the
-                    <filename>LIC_FILES_CHKSUM</filename> variable lists all
-                    the important files that contain the license text for the
-                    source code.
-                    It is possible to specify a checksum for an entire file,
-                    or a specific section of a file (specified by beginning and
-                    ending line numbers with the "beginline" and "endline"
-                    parameters, respectively).
-                    The latter is useful for source files with a license
-                    notice header, README documents, and so forth.
-                    If you do not use the "beginline" parameter, then it is
-                    assumed that the text begins on the first line of the file.
-                    Similarly, if you do not use the "endline" parameter,
-                    it is assumed that the license text ends with the last
-                    line of the file.
-                </para>
-
-                <para>
-                    The "md5" parameter stores the md5 checksum of the license
-                    text.
-                    If the license text changes in any way as compared to
-                    this parameter then a mismatch occurs.
-                    This mismatch triggers a build failure and notifies
-                    the developer.
-                    Notification allows the developer to review and address
-                    the license text changes.
-                    Also note that if a mismatch occurs during the build,
-                    the correct md5 checksum is placed in the build log and
-                    can be easily copied to the recipe.
-                </para>
-
-                <para>
-                    There is no limit to how many files you can specify using
-                    the <filename>LIC_FILES_CHKSUM</filename> variable.
-                    Generally, however, every project requires a few
-                    specifications for license tracking.
-                    Many projects have a "COPYING" file that stores the
-                    license information for all the source code files.
-                    This practice allows you to just track the "COPYING"
-                    file as long as it is kept up to date.
-                    <note><title>Tips</title>
-                        <itemizedlist>
-                            <listitem><para>
-                                If you specify an empty or invalid "md5"
-                                parameter,
-                                <ulink url='&YOCTO_DOCS_REF_URL;#bitbake-term'>BitBake</ulink>
-                                returns an md5 mis-match
-                                error and displays the correct "md5" parameter
-                                value during the build.
-                                The correct parameter is also captured in
-                                the build log.
-                                </para></listitem>
-                            <listitem><para>
-                                If the whole file contains only license text,
-                                you do not need to use the "beginline" and
-                               "endline" parameters.
-                               </para></listitem>
-                        </itemizedlist>
-                    </note>
-                </para>
-            </section>
-        </section>
-
-        <section id="enabling-commercially-licensed-recipes">
-            <title>Enabling Commercially Licensed Recipes</title>
-
-            <para>
-                By default, the OpenEmbedded build system disables
-                components that have commercial or other special licensing
-                requirements.
-                Such requirements are defined on a
-                recipe-by-recipe basis through the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-LICENSE_FLAGS'><filename>LICENSE_FLAGS</filename></ulink>
-                variable definition in the affected recipe.
-                For instance, the
-                <filename>poky/meta/recipes-multimedia/gstreamer/gst-plugins-ugly</filename>
-                recipe contains the following statement:
-                <literallayout class='monospaced'>
-     LICENSE_FLAGS = "commercial"
-                </literallayout>
-                Here is a slightly more complicated example that contains both
-                an explicit recipe name and version (after variable expansion):
-                <literallayout class='monospaced'>
-     LICENSE_FLAGS = "license_${PN}_${PV}"
-                </literallayout>
-	            In order for a component restricted by a
-                <filename>LICENSE_FLAGS</filename> definition to be enabled and
-                included in an image, it needs to have a matching entry in the
-                global
-	            <ulink url='&YOCTO_DOCS_REF_URL;#var-LICENSE_FLAGS_WHITELIST'><filename>LICENSE_FLAGS_WHITELIST</filename></ulink>
-                variable, which is a variable typically defined in your
-                <filename>local.conf</filename> file.
-                For example, to enable the
-                <filename>poky/meta/recipes-multimedia/gstreamer/gst-plugins-ugly</filename>
-	            package, you could add either the string
-	            "commercial_gst-plugins-ugly" or the more general string
-	            "commercial" to <filename>LICENSE_FLAGS_WHITELIST</filename>.
-                See the
-                "<link linkend='license-flag-matching'>License Flag Matching</link>"
-                section for a full
-                explanation of how <filename>LICENSE_FLAGS</filename> matching
-                works.
-                Here is the example:
-                <literallayout class='monospaced'>
-     LICENSE_FLAGS_WHITELIST = "commercial_gst-plugins-ugly"
-                </literallayout>
-	            Likewise, to additionally enable the package built from the
-                recipe containing
-	            <filename>LICENSE_FLAGS = "license_${PN}_${PV}"</filename>,
-                and assuming that the actual recipe name was
-                <filename>emgd_1.10.bb</filename>, the following string would
-                enable that package as well as the original
-                <filename>gst-plugins-ugly</filename> package:
-                <literallayout class='monospaced'>
-     LICENSE_FLAGS_WHITELIST = "commercial_gst-plugins-ugly license_emgd_1.10"
-                </literallayout>
-	            As a convenience, you do not need to specify the complete
-                license string in the whitelist for every package.
-                You can use an abbreviated form, which consists
-                of just the first portion or portions of the license
-                string before the initial underscore character or characters.
-                A partial string will match any license that contains the
-                given string as the first portion of its license.
-                For example, the following whitelist string will also match
-                both of the packages previously mentioned as well as any other
-                packages that have licenses starting with "commercial" or
-                "license".
-                <literallayout class='monospaced'>
-     LICENSE_FLAGS_WHITELIST = "commercial license"
-                </literallayout>
-            </para>
-
-            <section id="license-flag-matching">
-                <title>License Flag Matching</title>
-
-                <para>
-		            License flag matching allows you to control what recipes
-                    the OpenEmbedded build system includes in the build.
-                    Fundamentally, the build system attempts to match
-                    <filename>LICENSE_FLAGS</filename> strings found in recipes
-                    against <filename>LICENSE_FLAGS_WHITELIST</filename>
-                    strings found in the whitelist.
-                    A match causes the build system to include a recipe in the
-                    build, while failure to find a match causes the build
-                    system to exclude a recipe.
-                </para>
-
-                <para>
-                    In general, license flag matching is simple.
-                    However, understanding some concepts will help you
-                    correctly and effectively use matching.
-                </para>
-
-                <para>
-                    Before a flag
-                    defined by a particular recipe is tested against the
-                    contents of the whitelist, the expanded string
-                    <filename>_${PN}</filename> is appended to the flag.
-                    This expansion makes each
-                    <filename>LICENSE_FLAGS</filename> value recipe-specific.
-                    After expansion, the string is then matched against the
-                    whitelist.
-                    Thus, specifying
-                    <filename>LICENSE_FLAGS = "commercial"</filename>
-                    in recipe "foo", for example, results in the string
-                    <filename>"commercial_foo"</filename>.
-                    And, to create a match, that string must appear in the
-                    whitelist.
-                </para>
-
-                <para>
-                    Judicious use of the <filename>LICENSE_FLAGS</filename>
-                    strings and the contents of the
-                    <filename>LICENSE_FLAGS_WHITELIST</filename> variable
-                    allows you a lot of flexibility for including or excluding
-                    recipes based on licensing.
-                    For example, you can broaden the matching capabilities by
-                    using license flags string subsets in the whitelist.
-                    <note>
-                        When using a string subset, be sure to use the part of
-                        the expanded string that precedes the appended
-                        underscore character (e.g.
-                        <filename>usethispart_1.3</filename>,
-                        <filename>usethispart_1.4</filename>, and so forth).
-                    </note>
-                    For example, simply specifying the string "commercial" in
-                    the whitelist matches any expanded
-                    <filename>LICENSE_FLAGS</filename> definition that starts
-                    with the string "commercial" such as "commercial_foo" and
-                    "commercial_bar", which are the strings the build system
-                    automatically generates for hypothetical recipes named
-                    "foo" and "bar" assuming those recipes simply specify the
-                    following:
-                    <literallayout class='monospaced'>
-     LICENSE_FLAGS = "commercial"
-                    </literallayout>
-                    Thus, you can choose to exhaustively
-                    enumerate each license flag in the whitelist and
-                    allow only specific recipes into the image, or
-                    you can use a string subset that causes a broader range of
-                    matches to allow a range of recipes into the image.
-                </para>
-
-                <para>
-                    This scheme works even if the
-                    <filename>LICENSE_FLAGS</filename> string already
-                    has <filename>_${PN}</filename> appended.
-                    For example, the build system turns the license flag
-                    "commercial_1.2_foo" into "commercial_1.2_foo_foo" and
-                    would match both the general "commercial" and the specific
-                    "commercial_1.2_foo" strings found in the whitelist, as
-                    expected.
-                </para>
-
-                <para>
-                    Here are some other scenarios:
-                    <itemizedlist>
-                        <listitem><para>
-                            You can specify a versioned string in the recipe
-                            such as "commercial_foo_1.2" in a "foo" recipe.
-                            The build system expands this string to
-                            "commercial_foo_1.2_foo".
-                            Combine this license flag with a whitelist that has
-                            the string "commercial" and you match the flag
-                            along with any other flag that starts with the
-                            string "commercial".
-                            </para></listitem>
-                        <listitem><para>
-                            Under the same circumstances, you can use
-                            "commercial_foo" in the whitelist and the build
-                            system not only matches "commercial_foo_1.2" but
-                            also matches any license flag with the string
-                            "commercial_foo", regardless of the version.
-                            </para></listitem>
-                        <listitem><para>
-                            You can be very specific and use both the
-                            package and version parts in the whitelist (e.g.
-                            "commercial_foo_1.2") to specifically match a
-                            versioned recipe.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-
-            <section id="other-variables-related-to-commercial-licenses">
-                <title>Other Variables Related to Commercial Licenses</title>
-
-                <para>
-                    Other helpful variables related to commercial
-                    license handling exist and are defined in the
-                    <filename>poky/meta/conf/distro/include/default-distrovars.inc</filename> file:
-                    <literallayout class='monospaced'>
-     COMMERCIAL_AUDIO_PLUGINS ?= ""
-     COMMERCIAL_VIDEO_PLUGINS ?= ""
-                    </literallayout>
-                    If you want to enable these components, you can do so by
-                    making sure you have statements similar to the following
-                    in your <filename>local.conf</filename> configuration file:
-                    <literallayout class='monospaced'>
-     COMMERCIAL_AUDIO_PLUGINS = "gst-plugins-ugly-mad \
-        gst-plugins-ugly-mpegaudioparse"
-     COMMERCIAL_VIDEO_PLUGINS = "gst-plugins-ugly-mpeg2dec \
-        gst-plugins-ugly-mpegstream gst-plugins-bad-mpegvideoparse"
-     LICENSE_FLAGS_WHITELIST = "commercial_gst-plugins-ugly commercial_gst-plugins-bad commercial_qmmp"
-                    </literallayout>
-                    Of course, you could also create a matching whitelist
-                    for those components using the more general "commercial"
-                    in the whitelist, but that would also enable all the
-                    other packages with <filename>LICENSE_FLAGS</filename>
-                    containing "commercial", which you may or may not want:
-                    <literallayout class='monospaced'>
-     LICENSE_FLAGS_WHITELIST = "commercial"
-                    </literallayout>
-                </para>
-
-                <para>
-                    Specifying audio and video plugins as part of the
-                    <filename>COMMERCIAL_AUDIO_PLUGINS</filename> and
-                    <filename>COMMERCIAL_VIDEO_PLUGINS</filename> statements
-                    (along with the enabling
-                    <filename>LICENSE_FLAGS_WHITELIST</filename>) includes the
-                    plugins or components into built images, thus adding
-                    support for media formats or components.
-                </para>
-            </section>
-        </section>
-
-        <section id='maintaining-open-source-license-compliance-during-your-products-lifecycle'>
-            <title>Maintaining Open Source License Compliance During Your Product's Lifecycle</title>
-
-            <para>
-                One of the concerns for a development organization using open source
-                software is how to maintain compliance with various open source
-                licensing during the lifecycle of the product.
-                While this section does not provide legal advice or
-                comprehensively cover all scenarios, it does
-                present methods that you can use to
-                assist you in meeting the compliance requirements during a software
-                release.
-            </para>
-
-            <para>
-                With hundreds of different open source licenses that the Yocto
-                Project tracks, it is difficult to know the requirements of each
-                and every license.
-                However, the requirements of the major FLOSS licenses can begin
-                to be covered by
-                assuming that three main areas of concern exist:
-                <itemizedlist>
-                    <listitem><para>Source code must be provided.</para></listitem>
-                    <listitem><para>License text for the software must be
-                        provided.</para></listitem>
-                    <listitem><para>Compilation scripts and modifications to the
-                        source code must be provided.
-                        </para></listitem>
-                </itemizedlist>
-                There are other requirements beyond the scope of these
-                three and the methods described in this section
-                (e.g. the mechanism through which source code is distributed).
-            </para>
-
-            <para>
-                As different organizations have different methods of complying with
-                open source licensing, this section is not meant to imply that
-                there is only one single way to meet your compliance obligations,
-                but rather to describe one method of achieving compliance.
-                The remainder of this section describes methods supported to meet the
-                previously mentioned three requirements.
-                Once you take steps to meet these requirements,
-                and prior to releasing images, sources, and the build system,
-                you should audit all artifacts to ensure completeness.
-                <note>
-                    The Yocto Project generates a license manifest during
-                    image creation that is located
-                    in <filename>${DEPLOY_DIR}/licenses/<replaceable>image_name-datestamp</replaceable></filename>
-                    to assist with any audits.
-                </note>
-            </para>
-
-            <section id='providing-the-source-code'>
-                <title>Providing the Source Code</title>
-
-                <para>
-                    Compliance activities should begin before you generate the
-                    final image.
-                    The first thing you should look at is the requirement that
-                    tops the list for most compliance groups - providing
-                    the source.
-                    The Yocto Project has a few ways of meeting this
-                    requirement.
-                </para>
-
-                <para>
-                    One of the easiest ways to meet this requirement is
-                    to provide the entire
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-DL_DIR'><filename>DL_DIR</filename></ulink>
-                    used by the build.
-                    This method, however, has a few issues.
-                    The most obvious is the size of the directory since it includes
-                    all sources used in the build and not just the source used in
-                    the released image.
-                    It will include toolchain source, and other artifacts, which
-                    you would not generally release.
-                    However, the more serious issue for most companies is accidental
-                    release of proprietary software.
-                    The Yocto Project provides an
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-archiver'><filename>archiver</filename></ulink>
-                    class to help avoid some of these concerns.
-                </para>
-
-                <para>
-                    Before you employ <filename>DL_DIR</filename> or the
-                    <filename>archiver</filename> class, you need to decide how
-                    you choose to provide source.
-                    The source <filename>archiver</filename> class can generate
-                    tarballs and SRPMs and can create them with various levels of
-                    compliance in mind.
-                </para>
-
-                <para>
-                    One way of doing this (but certainly not the only way) is to
-                    release just the source as a tarball.
-                    You can do this by adding the following to the
-                    <filename>local.conf</filename> file found in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>:
-                    <literallayout class='monospaced'>
-     INHERIT += "archiver"
-     ARCHIVER_MODE[src] = "original"
-                    </literallayout>
-                    During the creation of your image, the source from all
-                    recipes that deploy packages to the image is placed within
-                    subdirectories of
-                    <filename>DEPLOY_DIR/sources</filename> based on the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-LICENSE'><filename>LICENSE</filename></ulink>
-                    for each recipe.
-                    Releasing the entire directory enables you to comply with
-                    requirements concerning providing the unmodified source.
-                    It is important to note that the size of the directory can
-                    get large.
-                </para>
-
-                <para>
-                    A way to help mitigate the size issue is to only release
-                    tarballs for licenses that require the release of
-                    source.
-                    Let us assume you are only concerned with GPL code as
-                    identified by running the following script:
-                    <literallayout class='monospaced'>
-     # Script to archive a subset of packages matching specific license(s)
-     # Source and license files are copied into sub folders of package folder
-     # Must be run from build folder
-     #!/bin/bash
-     src_release_dir="source-release"
-     mkdir -p $src_release_dir
-     for a in tmp/deploy/sources/*; do
-        for d in $a/*; do
-           # Get package name from path
-           p=`basename $d`
-           p=${p%-*}
-           p=${p%-*}
-           # Only archive GPL packages (update *GPL* regex for your license check)
-           numfiles=`ls tmp/deploy/licenses/$p/*GPL* 2> /dev/null | wc -l`
-           if [ $numfiles -gt 1 ]; then
-              echo Archiving $p
-              mkdir -p $src_release_dir/$p/source
-              cp $d/* $src_release_dir/$p/source 2> /dev/null
-              mkdir -p $src_release_dir/$p/license
-              cp tmp/deploy/licenses/$p/* $src_release_dir/$p/license 2> /dev/null
-           fi
-        done
-     done
-                    </literallayout>
-                    At this point, you could create a tarball from the
-                    <filename>gpl_source_release</filename> directory and
-                    provide that to the end user.
-                    This method would be a step toward achieving compliance
-                    with section 3a of GPLv2 and with section 6 of GPLv3.
-                </para>
-            </section>
-
-            <section id='providing-license-text'>
-                <title>Providing License Text</title>
-
-                <para>
-                    One requirement that is often overlooked is inclusion
-                    of license text.
-                    This requirement also needs to be dealt with prior to
-                    generating the final image.
-                    Some licenses require the license text to accompany
-                    the binary.
-                    You can achieve this by adding the following to your
-                    <filename>local.conf</filename> file:
-                    <literallayout class='monospaced'>
-     COPY_LIC_MANIFEST = "1"
-     COPY_LIC_DIRS = "1"
-     LICENSE_CREATE_PACKAGE = "1"
-                    </literallayout>
-                    Adding these statements to the configuration file ensures
-                    that the licenses collected during package generation
-                    are included on your image.
-                    <note>
-                        <para>Setting all three variables to "1" results in the
-                        image having two copies of the same license file.
-                        One copy resides in
-                        <filename>/usr/share/common-licenses</filename> and
-                        the other resides in
-                        <filename>/usr/share/license</filename>.</para>
-
-                        <para>The reason for this behavior is because
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-COPY_LIC_DIRS'><filename>COPY_LIC_DIRS</filename></ulink>
-                        and
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-COPY_LIC_MANIFEST'><filename>COPY_LIC_MANIFEST</filename></ulink>
-                        add a copy of the license when the image is built but do
-                        not offer a path for adding licenses for newly installed
-                        packages to an image.
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-LICENSE_CREATE_PACKAGE'><filename>LICENSE_CREATE_PACKAGE</filename></ulink>
-                        adds a separate package and an upgrade path for adding
-                        licenses to an image.</para>
-                    </note>
-                </para>
-
-                <para>
-                    As the source <filename>archiver</filename> class has already
-                    archived the original
-                    unmodified source that contains the license files,
-                    you would have already met the requirements for inclusion
-                    of the license information with source as defined by the GPL
-                    and other open source licenses.
-                </para>
-            </section>
-
-            <section id='providing-compilation-scripts-and-source-code-modifications'>
-                <title>Providing Compilation Scripts and Source Code Modifications</title>
-
-                <para>
-                    At this point, we have addressed all we need to
-                    prior to generating the image.
-                    The next two requirements are addressed during the final
-                    packaging of the release.
-                </para>
-
-                <para>
-                    By releasing the version of the OpenEmbedded build system
-                    and the layers used during the build, you will be providing both
-                    compilation scripts and the source code modifications in one
-                    step.
-                </para>
-
-                <para>
-                    If the deployment team has a
-                    <ulink url='&YOCTO_DOCS_BSP_URL;#bsp-layers'>BSP layer</ulink>
-                    and a distro layer, and those those layers are used to patch,
-                    compile, package, or modify (in any way) any open source
-                    software included in your released images, you
-                    might be required to release those layers under section 3 of
-                    GPLv2 or section 1 of GPLv3.
-                    One way of doing that is with a clean
-                    checkout of the version of the Yocto Project and layers used
-                    during your build.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     # We built using the &DISTRO_NAME_NO_CAP; branch of the poky repo
-     $ git clone -b &DISTRO_NAME_NO_CAP; git://git.yoctoproject.org/poky
-     $ cd poky
-     # We built using the release_branch for our layers
-     $ git clone -b release_branch git://git.mycompany.com/meta-my-bsp-layer
-     $ git clone -b release_branch git://git.mycompany.com/meta-my-software-layer
-     # clean up the .git repos
-     $ find . -name ".git" -type d -exec rm -rf {} \;
-                    </literallayout>
-                    One thing a development organization might want to consider
-                    for end-user convenience is to modify
-                    <filename>meta-poky/conf/bblayers.conf.sample</filename> to
-                    ensure that when the end user utilizes the released build
-                    system to build an image, the development organization's
-                    layers are included in the <filename>bblayers.conf</filename>
-                    file automatically:
-                    <literallayout class='monospaced'>
-     # POKY_BBLAYERS_CONF_VERSION is increased each time build/conf/bblayers.conf
-     # changes incompatibly
-     POKY_BBLAYERS_CONF_VERSION = "2"
-
-     BBPATH = "${TOPDIR}"
-     BBFILES ?= ""
-
-     BBLAYERS ?= " \
-       ##OEROOT##/meta \
-       ##OEROOT##/meta-poky \
-       ##OEROOT##/meta-yocto-bsp \
-       ##OEROOT##/meta-mylayer \
-       "
-                    </literallayout>
-                    Creating and providing an archive of the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#metadata'>Metadata</ulink>
-                    layers (recipes, configuration files, and so forth)
-                    enables you to meet your
-                    requirements to include the scripts to control compilation
-                    as well as any modifications to the original source.
-                </para>
-            </section>
-        </section>
-
-        <section id='copying-licenses-that-do-not-exist'>
-            <title>Copying Licenses that Do Not Exist</title>
-
-            <para>
-                Some packages, such as the linux-firmware package, have many
-                licenses that are not in any way common.
-                You can avoid adding a lot of these types of common license
-                files, which are only applicable to a specific package, by using
-                the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-NO_GENERIC_LICENSE'><filename>NO_GENERIC_LICENSE</filename></ulink>
-                variable.
-                Using this variable also avoids QA errors when you use a
-                non-common, non-CLOSED license in a recipe.
-            </para>
-
-            <para>
-                The following is an example that uses the
-                <filename>LICENSE.Abilis.txt</filename>
-                file as the license from the fetched source:
-                <literallayout class='monospaced'>
-     NO_GENERIC_LICENSE[Firmware-Abilis] = "LICENSE.Abilis.txt"
-                </literallayout>
-            </para>
-        </section>
-    </section>
-
-    <section id='using-the-error-reporting-tool'>
-        <title>Using the Error Reporting Tool</title>
-
-        <para>
-            The error reporting tool allows you to
-            submit errors encountered during builds to a central database.
-            Outside of the build environment, you can use a web interface to
-            browse errors, view statistics, and query for errors.
-            The tool works using a client-server system where the client
-            portion is integrated with the installed Yocto Project
-            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-            (e.g. <filename>poky</filename>).
-            The server receives the information collected and saves it in a
-            database.
-        </para>
-
-        <para>
-            A live instance of the error reporting server exists at
-            <ulink url='http://errors.yoctoproject.org'></ulink>.
-            This server exists so that when you want to get help with
-            build failures, you can submit all of the information on the
-            failure easily and then point to the URL in your bug report
-            or send an email to the mailing list.
-            <note>
-                If you send error reports to this server, the reports become
-                publicly visible.
-            </note>
-        </para>
-
-        <section id='enabling-and-using-the-tool'>
-            <title>Enabling and Using the Tool</title>
-
-            <para>
-                By default, the error reporting tool is disabled.
-                You can enable it by inheriting the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-report-error'><filename>report-error</filename></ulink>
-                class by adding the following statement to the end of
-                your <filename>local.conf</filename> file in your
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                <literallayout class='monospaced'>
-     INHERIT += "report-error"
-                </literallayout>
-            </para>
-
-            <para>
-                By default, the error reporting feature stores information in
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-LOG_DIR'><filename>LOG_DIR</filename></ulink><filename>}/error-report</filename>.
-                However, you can specify a directory to use by adding the following
-                to your <filename>local.conf</filename> file:
-                <literallayout class='monospaced'>
-     ERR_REPORT_DIR = "path"
-                </literallayout>
-                Enabling error reporting causes the build process to collect
-                the errors and store them in a file as previously described.
-                When the build system encounters an error, it includes a
-                command as part of the console output.
-                You can run the command to send the error file to the server.
-                For example, the following command sends the errors to an
-                upstream server:
-                <literallayout class='monospaced'>
-     $ send-error-report /home/brandusa/project/poky/build/tmp/log/error-report/error_report_201403141617.txt
-                </literallayout>
-                In the previous example, the errors are sent to a public
-                database available at
-                <ulink url='http://errors.yoctoproject.org'></ulink>, which is
-                used by the entire community.
-                If you specify a particular server, you can send the errors
-                to a different database.
-                Use the following command for more information on available
-                options:
-                <literallayout class='monospaced'>
-     $ send-error-report --help
-                </literallayout>
-            </para>
-
-            <para>
-                When sending the error file, you are prompted to review the
-                data being sent as well as to provide a name and optional
-                email address.
-                Once you satisfy these prompts, the command returns a link
-                from the server that corresponds to your entry in the database.
-                For example, here is a typical link:
-                <literallayout class='monospaced'>
-     http://errors.yoctoproject.org/Errors/Details/9522/
-                </literallayout>
-                Following the link takes you to a web interface where you can
-                browse, query the errors, and view statistics.
-             </para>
-        </section>
-
-        <section id='disabling-the-tool'>
-            <title>Disabling the Tool</title>
-
-            <para>
-                To disable the error reporting feature, simply remove or comment
-                out the following statement from the end of your
-                <filename>local.conf</filename> file in your
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                <literallayout class='monospaced'>
-     INHERIT += "report-error"
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='setting-up-your-own-error-reporting-server'>
-            <title>Setting Up Your Own Error Reporting Server</title>
-
-            <para>
-                If you want to set up your own error reporting server, you
-                can obtain the code from the Git repository at
-                <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/error-report-web/'></ulink>.
-                Instructions on how to set it up are in the README document.
-            </para>
-        </section>
-     </section>
-
-    <section id="dev-using-wayland-and-weston">
-        <title>Using Wayland and Weston</title>
-
-        <para>
-            <ulink url='http://en.wikipedia.org/wiki/Wayland_(display_server_protocol)'>Wayland</ulink>
-            is a computer display server protocol that
-            provides a method for compositing window managers to communicate
-            directly with applications and video hardware and expects them to
-            communicate with input hardware using other libraries.
-            Using Wayland with supporting targets can result in better control
-            over graphics frame rendering than an application might otherwise
-            achieve.
-        </para>
-
-        <para>
-            The Yocto Project provides the Wayland protocol libraries and the
-            reference
-            <ulink url='http://en.wikipedia.org/wiki/Wayland_(display_server_protocol)#Weston'>Weston</ulink>
-            compositor as part of its release.
-            You can find the integrated packages in the
-            <filename>meta</filename> layer of the
-            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>.
-            Specifically, you can find the recipes that build both Wayland
-            and Weston at <filename>meta/recipes-graphics/wayland</filename>.
-        </para>
-
-        <para>
-            You can build both the Wayland and Weston packages for use only
-            with targets that accept the
-            <ulink url='https://en.wikipedia.org/wiki/Mesa_(computer_graphics)'>Mesa 3D and Direct Rendering Infrastructure</ulink>,
-            which is also known as Mesa DRI.
-            This implies that you cannot build and use the packages if your
-            target uses, for example, the
-            <trademark class='registered'>Intel</trademark> Embedded Media
-            and Graphics Driver
-            (<trademark class='registered'>Intel</trademark> EMGD) that
-            overrides Mesa DRI.
-            <note>
-                Due to lack of EGL support, Weston 1.0.3 will not run
-                directly on the emulated QEMU hardware.
-                However, this version of Weston will run under X emulation
-                without issues.
-            </note>
-        </para>
-
-        <para>
-            This section describes what you need to do to implement Wayland and
-            use the Weston compositor when building an image for a supporting
-            target.
-        </para>
-
-        <section id="enabling-wayland-in-an-image">
-            <title>Enabling Wayland in an Image</title>
-
-            <para>
-                To enable Wayland, you need to enable it to be built and enable
-                it to be included (installed) in the image.
-            </para>
-
-            <section id="enable-building">
-                <title>Building</title>
-
-                <para>
-                    To cause Mesa to build the <filename>wayland-egl</filename>
-                    platform and Weston to build Wayland with Kernel Mode
-                    Setting
-                    (<ulink url='https://wiki.archlinux.org/index.php/Kernel_Mode_Setting'>KMS</ulink>)
-                    support, include the "wayland" flag in the
-                    <ulink url="&YOCTO_DOCS_REF_URL;#var-DISTRO_FEATURES"><filename>DISTRO_FEATURES</filename></ulink>
-                    statement in your <filename>local.conf</filename> file:
-                    <literallayout class='monospaced'>
-     DISTRO_FEATURES_append = " wayland"
-                    </literallayout>
-                    <note>
-                        If X11 has been enabled elsewhere, Weston will build
-                        Wayland with X11 support
-                    </note>
-                </para>
-            </section>
-
-            <section id="enable-installation-in-an-image">
-                <title>Installing</title>
-
-                <para>
-                    To install the Wayland feature into an image, you must
-                    include the following
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-CORE_IMAGE_EXTRA_INSTALL'><filename>CORE_IMAGE_EXTRA_INSTALL</filename></ulink>
-                    statement in your <filename>local.conf</filename> file:
-                    <literallayout class='monospaced'>
-     CORE_IMAGE_EXTRA_INSTALL += "wayland weston"
-                    </literallayout>
-                </para>
-            </section>
-        </section>
-
-        <section id="running-weston">
-            <title>Running Weston</title>
-
-            <para>
-                To run Weston inside X11, enabling it as described earlier and
-                building a Sato image is sufficient.
-                If you are running your image under Sato, a Weston Launcher
-                appears in the "Utility" category.
-            </para>
-
-            <para>
-                Alternatively, you can run Weston through the command-line
-                interpretor (CLI), which is better suited for development work.
-                To run Weston under the CLI, you need to do the following after
-                your image is built:
-                <orderedlist>
-                    <listitem><para>
-                        Run these commands to export
-                        <filename>XDG_RUNTIME_DIR</filename>:
-                        <literallayout class='monospaced'>
-     mkdir -p /tmp/$USER-weston
-     chmod 0700 /tmp/$USER-weston
-     export XDG_RUNTIME_DIR=/tmp/$USER-weston
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        Launch Weston in the shell:
-                        <literallayout class='monospaced'>
-     weston
-                        </literallayout></para></listitem>
-                </orderedlist>
-            </para>
-        </section>
-    </section>
-</chapter>
-
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/dev-manual/dev-manual-customization.xsl b/poky/documentation/dev-manual/dev-manual-customization.xsl
deleted file mode 100644
index 6b16bca..0000000
--- a/poky/documentation/dev-manual/dev-manual-customization.xsl
+++ /dev/null
@@ -1,29 +0,0 @@
-<?xml version='1.0'?>
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
-
-  <xsl:import href="http://downloads.yoctoproject.org/mirror/docbook-mirror/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-<!--
-
-  <xsl:import href="../template/1.76.1/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-  <xsl:import href="http://docbook.sourceforge.net/release/xsl/1.76.1/xhtml/docbook.xsl" />
-
--->
-
-  <xsl:include href="../template/permalinks.xsl"/>
-  <xsl:include href="../template/section.title.xsl"/>
-  <xsl:include href="../template/component.title.xsl"/>
-  <xsl:include href="../template/division.title.xsl"/>
-  <xsl:include href="../template/formal.object.heading.xsl"/>
-
-  <xsl:param name="html.stylesheet" select="'dev-style.css'" />
-  <xsl:param name="chapter.autolabel" select="1" />
-  <xsl:param name="appendix.autolabel" select="A" />
-  <xsl:param name="section.autolabel" select="1" />
-  <xsl:param name="section.label.includes.component.label" select="1" />
-  <xsl:param name="generate.id.attributes" select="1" />
-
-</xsl:stylesheet>
diff --git a/poky/documentation/dev-manual/dev-manual-intro.rst b/poky/documentation/dev-manual/dev-manual-intro.rst
index 3225c6c..da08b7b 100644
--- a/poky/documentation/dev-manual/dev-manual-intro.rst
+++ b/poky/documentation/dev-manual/dev-manual-intro.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ******************************************
 The Yocto Project Development Tasks Manual
diff --git a/poky/documentation/dev-manual/dev-manual-intro.xml b/poky/documentation/dev-manual/dev-manual-intro.xml
deleted file mode 100644
index 38de5e4..0000000
--- a/poky/documentation/dev-manual/dev-manual-intro.xml
+++ /dev/null
@@ -1,104 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='dev-manual-intro'>
-
-<title>The Yocto Project Development Tasks Manual</title>
-    <section id='dev-welcome'>
-        <title>Welcome</title>
-
-        <para>
-            Welcome to the Yocto Project Development Tasks Manual!
-            This manual provides relevant procedures necessary for developing
-            in the Yocto Project environment (i.e. developing embedded Linux
-            images and user-space applications that run on targeted devices).
-            The manual groups related procedures into higher-level sections.
-            Procedures can consist of high-level steps or low-level steps
-            depending on the topic.
-        </para>
-
-        <para>
-            This manual provides the following:
-            <itemizedlist>
-                <listitem><para>
-                    Procedures that help you get going with the Yocto Project.
-                    For example, procedures that show you how to set up
-                    a build host and work with the Yocto Project
-                    source repositories.
-                    </para></listitem>
-                <listitem><para>
-                    Procedures that show you how to submit changes to the
-                    Yocto Project.
-                    Changes can be improvements, new features, or bug
-                    fixes.
-                    </para></listitem>
-                <listitem><para>
-                    Procedures related to "everyday" tasks you perform while
-                    developing images and applications using the Yocto
-                    Project.
-                    For example, procedures to create a layer, customize an
-                    image, write a new recipe, and so forth.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            This manual does not provide the following:
-            <itemizedlist>
-                <listitem><para>
-                    Redundant Step-by-step Instructions:
-                    For example, the
-                    <ulink url='&YOCTO_DOCS_SDK_URL;'>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</ulink>
-                    manual contains detailed instructions on how to install an
-                    SDK, which is used to develop applications for target
-                    hardware.
-                    </para></listitem>
-                <listitem><para>
-                    Reference or Conceptual Material:
-                    This type of material resides in an appropriate reference
-                    manual.
-                    For example, system variables are documented in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;'>Yocto Project Reference Manual</ulink>.
-                    </para></listitem>
-                <listitem><para>
-                    Detailed Public Information Not Specific to the
-                    Yocto Project:
-                    For example, exhaustive information on how to use the
-                    Source Control Manager Git is better covered with Internet
-                    searches and official Git Documentation than through the
-                    Yocto Project documentation.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='other-information'>
-        <title>Other Information</title>
-
-        <para>
-            Because this manual presents information for many different
-            topics, supplemental information is recommended for full
-            comprehension.
-            For introductory information on the Yocto Project, see the
-            <ulink url='&YOCTO_HOME_URL;'>Yocto Project Website</ulink>.
-            If you want to build an image with no knowledge of Yocto Project
-            as a way of quickly testing it out, see the
-            <ulink url='&YOCTO_DOCS_BRIEF_URL;'>Yocto Project Quick Build</ulink>
-            document.
-        </para>
-
-        <para>
-            For a comprehensive list of links and other documentation, see the
-            "<ulink url='&YOCTO_DOCS_REF_URL;#resources-links-and-related-documentation'>Links and Related Documentation</ulink>"
-            section in the Yocto Project Reference Manual.
-        </para>
-
-        <para>
-        </para>
-    </section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/dev-manual/dev-manual-qemu.rst b/poky/documentation/dev-manual/dev-manual-qemu.rst
index 2833689..9337a35 100644
--- a/poky/documentation/dev-manual/dev-manual-qemu.rst
+++ b/poky/documentation/dev-manual/dev-manual-qemu.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *******************************
 Using the Quick EMUlator (QEMU)
diff --git a/poky/documentation/dev-manual/dev-manual-qemu.xml b/poky/documentation/dev-manual/dev-manual-qemu.xml
deleted file mode 100644
index 1a526dd..0000000
--- a/poky/documentation/dev-manual/dev-manual-qemu.xml
+++ /dev/null
@@ -1,691 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='dev-manual-qemu'>
-
-<title>Using the Quick EMUlator (QEMU)</title>
-
-    <para>
-        The Yocto Project uses an implementation of the Quick EMUlator (QEMU)
-        Open Source project as part of the Yocto Project development "tool
-        set".
-        This chapter provides both procedures that show you how to use the
-        Quick EMUlator (QEMU) and other QEMU information helpful for
-        development purposes.
-    </para>
-
-    <section id='qemu-dev-overview'>
-        <title>Overview</title>
-
-        <para>
-            Within the context of the Yocto Project, QEMU is an
-            emulator and virtualization machine that allows you to run a
-            complete image you have built using the Yocto Project as just
-            another task on your build system.
-            QEMU is useful for running and testing images and applications on
-            supported Yocto Project architectures without having actual
-            hardware.
-            Among other things, the Yocto Project uses QEMU to run automated
-            Quality Assurance (QA) tests on final images shipped with each
-            release.
-            <note>
-                This implementation is not the same as QEMU in general.
-            </note>
-            This section provides a brief reference for the Yocto Project
-            implementation of QEMU.
-        </para>
-
-        <para>
-            For official information and documentation on QEMU in general, see
-            the following references:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><ulink url='http://wiki.qemu.org/Main_Page'>QEMU Website</ulink>:</emphasis>
-                    The official website for the QEMU Open Source project.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><ulink url='http://wiki.qemu.org/Manual'>Documentation</ulink>:</emphasis>
-                    The QEMU user manual.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='qemu-running-qemu'>
-        <title>Running QEMU</title>
-
-        <para>
-            To use QEMU, you need to have QEMU installed and initialized as
-            well as have the proper artifacts (i.e. image files and root
-            filesystems) available.
-            Follow these general steps to run QEMU:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Install QEMU:</emphasis>
-                    QEMU is made available with the Yocto Project a number of
-                    ways.
-                    One method is to install a Software Development Kit (SDK).
-                    See
-                    "<ulink url='&YOCTO_DOCS_SDK_URL;#the-qemu-emulator'>The QEMU Emulator</ulink>"
-                    section in the Yocto Project Application Development and
-                    the Extensible Software Development Kit (eSDK) manual
-                    for information on how to install QEMU.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Setting Up the Environment:</emphasis>
-                    How you set up the QEMU environment depends on how you
-                    installed QEMU:
-                    <itemizedlist>
-                        <listitem><para>
-                            If you cloned the <filename>poky</filename>
-                            repository or you downloaded and unpacked a
-                            Yocto Project release tarball, you can source
-                            the build environment script (i.e.
-                            <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>):
-                            <literallayout class='monospaced'>
-     $ cd ~/poky
-     $ source oe-init-build-env
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            If you installed a cross-toolchain, you can
-                            run the script that initializes the toolchain.
-                            For example, the following commands run the
-                            initialization script from the default
-                            <filename>poky_sdk</filename> directory:
-                            <literallayout class='monospaced'>
-     . ~/poky_sdk/environment-setup-core2-64-poky-linux
-                            </literallayout>
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Ensure the Artifacts are in Place:</emphasis>
-                    You need to be sure you have a pre-built kernel that
-                    will boot in QEMU.
-                    You also need the target root filesystem for your target
-                    machine's architecture:
-                    <itemizedlist>
-                        <listitem><para>
-                            If you have previously built an image for QEMU
-                            (e.g. <filename>qemux86</filename>,
-                            <filename>qemuarm</filename>, and so forth),
-                            then the artifacts are in place in your
-                            <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                            </para></listitem>
-                        <listitem><para>
-                            If you have not built an image, you can go to the
-                            <ulink url='&YOCTO_MACHINES_DL_URL;'>machines/qemu</ulink>
-                            area and download a pre-built image that matches
-                            your architecture and can be run on QEMU.
-                            </para></listitem>
-                    </itemizedlist></para>
-
-                    <para>See the
-                    "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-extracting-the-root-filesystem'>Extracting the Root Filesystem</ulink>"
-                    section in the Yocto Project Application Development and
-                    the Extensible Software Development Kit (eSDK) manual
-                    for information on how to extract a root filesystem.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Run QEMU:</emphasis>
-                    The basic <filename>runqemu</filename> command syntax is as
-                    follows:
-                    <literallayout class='monospaced'>
-     $ runqemu [<replaceable>option</replaceable> ]  [...]
-                    </literallayout>
-                    Based on what you provide on the command line,
-                    <filename>runqemu</filename> does a good job of figuring
-                    out what you are trying to do.
-                    For example, by default, QEMU looks for the most recently
-                    built image according to the timestamp when it needs to
-                    look for an image.
-                    Minimally, through the use of options, you must provide
-                    either a machine name, a virtual machine image
-                    (<filename>*wic.vmdk</filename>), or a kernel image
-                    (<filename>*.bin</filename>).</para>
-
-                    <para>Here are some additional examples to help illustrate
-                    further QEMU:
-                    <itemizedlist>
-                        <listitem><para>
-                            This example starts QEMU with
-                            <replaceable>MACHINE</replaceable> set to "qemux86-64".
-                            Assuming a standard
-                            <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>,
-                            <filename>runqemu</filename> automatically finds the
-                            <filename>bzImage-qemux86-64.bin</filename> image file and
-                            the
-                            <filename>core-image-minimal-qemux86-64-20200218002850.rootfs.ext4</filename>
-                            (assuming the current build created a
-                            <filename>core-image-minimal</filename> image).
-                            <note>
-                            When more than one image with the same name exists, QEMU finds
-                            and uses the most recently built image according to the
-                            timestamp.
-                            </note>
-                            <literallayout class='monospaced'>
-     $ runqemu qemux86-64
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            This example produces the exact same results as the
-                            previous example.
-                            This command, however, specifically provides the image
-                            and root filesystem type.
-                            <literallayout class='monospaced'>
-     $ runqemu qemux86-64 core-image-minimal ext4
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            This example specifies to boot an initial RAM disk image
-                            and to enable audio in QEMU.
-                            For this case, <filename>runqemu</filename> set the
-                            internal variable <filename>FSTYPE</filename> to
-                            "cpio.gz".
-                            Also, for audio to be enabled, an appropriate driver must
-                            be installed (see the previous description for the
-                            <filename>audio</filename> option for more information).
-                            <literallayout class='monospaced'>
-     $ runqemu qemux86-64 ramfs audio
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            This example does not provide enough information for
-                            QEMU to launch.
-                            While the command does provide a root filesystem type, it
-                            must also minimally provide a
-                            <replaceable>MACHINE</replaceable>,
-                            <replaceable>KERNEL</replaceable>, or
-                            <replaceable>VM</replaceable> option.
-                            <literallayout class='monospaced'>
-     $ runqemu ext4
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            This example specifies to boot a virtual machine
-                            image (<filename>.wic.vmdk</filename> file).
-                            From the <filename>.wic.vmdk</filename>,
-                            <filename>runqemu</filename> determines the QEMU
-                            architecture (<replaceable>MACHINE</replaceable>) to be
-                            "qemux86-64" and the root filesystem type to be "vmdk".
-                            <literallayout class='monospaced'>
-     $ runqemu /home/scott-lenovo/vm/core-image-minimal-qemux86-64.wic.vmdk
-                            </literallayout>
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id='switching-between-consoles'>
-        <title>Switching Between Consoles</title>
-
-        <para>
-            When booting or running QEMU, you can switch between
-            supported consoles by using
-            Ctrl+Alt+<replaceable>number</replaceable>.
-            For example, Ctrl+Alt+3 switches you to the serial console
-            as long as that console is enabled.
-            Being able to switch consoles is helpful, for example, if
-            the main QEMU console breaks for some reason.
-            <note>
-                Usually, "2" gets you to the main console and "3"
-                gets you to the serial console.
-            </note>
-        </para>
-    </section>
-
-    <section id='removing-the-splash-screen'>
-        <title>Removing the Splash Screen</title>
-
-        <para>
-            You can remove the splash screen when QEMU is booting by
-            using Alt+left.
-            Removing the splash screen allows you to see what is
-            happening in the background.
-        </para>
-    </section>
-
-    <section id='disabling-the-cursor-grab'>
-        <title>Disabling the Cursor Grab</title>
-
-        <para>
-            The default QEMU integration captures the cursor within the
-            main window.
-            It does this since standard mouse devices only provide
-            relative input and not absolute coordinates.
-            You then have to break out of the grab using the "Ctrl+Alt"
-            key combination.
-            However, the Yocto Project's integration of QEMU enables
-            the wacom USB touch pad driver by default to allow input
-            of absolute coordinates.
-            This default means that the mouse can enter and leave the
-            main window without the grab taking effect leading to a
-            better user experience.
-        </para>
-    </section>
-
-    <section id='qemu-running-under-a-network-file-system-nfs-server'>
-        <title>Running Under a Network File System (NFS) Server</title>
-
-        <para>
-            One method for running QEMU is to run it on an NFS server.
-            This is useful when you need to access the same file system
-            from both the build and the emulated system at the same time.
-            It is also worth noting that the system does not need root
-            privileges to run.
-            It uses a user space NFS server to avoid that.
-            Follow these steps to set up for running QEMU using an NFS
-            server.
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Extract a Root Filesystem:</emphasis>
-                    Once you are able to run QEMU in your environment, you can
-                    use the <filename>runqemu-extract-sdk</filename> script,
-                    which is located in the <filename>scripts</filename>
-                    directory along with the <filename>runqemu</filename>
-                    script.</para>
-
-                    <para>The <filename>runqemu-extract-sdk</filename> takes a
-                    root filesystem tarball and extracts it into a location
-                    that you specify.
-                    Here is an example that takes a file system and
-                    extracts it to a directory named
-                    <filename>test-nfs</filename>:
-                    <literallayout class='monospaced'>
-     runqemu-extract-sdk ./tmp/deploy/images/qemux86-64/core-image-sato-qemux86-64.tar.bz2 test-nfs
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Start QEMU:</emphasis>
-                    Once you have extracted the file system, you can run
-                    <filename>runqemu</filename> normally with the additional
-                    location of the file system.
-                    You can then also make changes to the files within
-                    <filename>./test-nfs</filename> and see those changes
-                    appear in the image in real time.
-                    Here is an example using the <filename>qemux86</filename>
-                    image:
-                    <literallayout class='monospaced'>
-     runqemu qemux86-64 ./test-nfs
-                    </literallayout>
-                    </para></listitem>
-            </orderedlist>
-            <note>
-                <para>
-                    Should you need to start, stop, or restart the NFS share,
-                    you can use the following commands:
-                    <itemizedlist>
-                        <listitem><para>
-                            The following command starts the NFS share:
-                            <literallayout class='monospaced'>
-     runqemu-export-rootfs start <replaceable>file-system-location</replaceable>
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            The following command stops the NFS share:
-                            <literallayout class='monospaced'>
-         runqemu-export-rootfs stop <replaceable>file-system-location</replaceable>
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            The following command restarts the NFS share:
-                            <literallayout class='monospaced'>
-     runqemu-export-rootfs restart <replaceable>file-system-location</replaceable>
-                            </literallayout>
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </note>
-        </para>
-    </section>
-
-    <section id='qemu-kvm-cpu-compatibility'>
-        <title>QEMU CPU Compatibility Under KVM</title>
-
-        <para>
-            By default, the QEMU build compiles for and targets 64-bit and x86
-            <trademark class='registered'>Intel</trademark> <trademark class='trademark'>Core</trademark>2
-            Duo processors and 32-bit x86
-            <trademark class='registered'>Intel</trademark> <trademark class='registered'>Pentium</trademark>
-            II processors.
-            QEMU builds for and targets these CPU types because they display
-            a broad range of CPU feature compatibility with many commonly
-            used CPUs.
-        </para>
-
-        <para>
-            Despite this broad range of compatibility, the CPUs could support
-            a feature that your host CPU does not support.
-            Although this situation is not a problem when QEMU uses software
-            emulation of the feature, it can be a problem when QEMU is
-            running with KVM enabled.
-            Specifically, software compiled with a certain CPU feature crashes
-            when run on a CPU under KVM that does not support that feature.
-            To work around this problem, you can override QEMU's runtime CPU
-            setting by changing the <filename>QB_CPU_KVM</filename>
-            variable in <filename>qemuboot.conf</filename> in the
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory's</ulink>
-            <filename>deploy/image</filename> directory.
-            This setting specifies a <filename>-cpu</filename> option
-            passed into QEMU in the <filename>runqemu</filename> script.
-            Running <filename>qemu -cpu help</filename> returns a list of
-            available supported CPU types.
-        </para>
-    </section>
-
-    <section id='qemu-dev-performance'>
-        <title>QEMU Performance</title>
-
-        <para>
-            Using QEMU to emulate your hardware can result in speed issues
-            depending on the target and host architecture mix.
-            For example, using the <filename>qemux86</filename> image in the
-            emulator on an Intel-based 32-bit (x86) host machine is fast
-            because the target and host architectures match.
-            On the other hand, using the <filename>qemuarm</filename> image
-            on the same Intel-based host can be slower.
-            But, you still achieve faithful emulation of ARM-specific issues.
-        </para>
-
-        <para>
-            To speed things up, the QEMU images support using
-            <filename>distcc</filename> to call a cross-compiler outside the
-            emulated system.
-            If you used <filename>runqemu</filename> to start QEMU, and the
-            <filename>distccd</filename> application is present on the host
-            system, any BitBake cross-compiling toolchain available from the
-            build system is automatically used from within QEMU simply by
-            calling <filename>distcc</filename>.
-            You can accomplish this by defining the cross-compiler variable
-            (e.g. <filename>export CC="distcc"</filename>).
-            Alternatively, if you are using a suitable SDK image or the
-            appropriate stand-alone toolchain is present, the toolchain is
-            also automatically used.
-            <note>
-                Several mechanisms exist that let you connect to the system
-                running on the QEMU emulator:
-                <itemizedlist>
-                    <listitem><para>
-                        QEMU provides a framebuffer interface that makes
-                        standard consoles available.
-                        </para></listitem>
-                    <listitem><para>
-                        Generally, headless embedded devices have a serial port.
-                        If so, you can configure the operating system of the
-                        running image to use that port to run a console.
-                        The connection uses standard IP networking.
-                        </para></listitem>
-                    <listitem><para>
-                        SSH servers exist in some QEMU images.
-                        The <filename>core-image-sato</filename> QEMU image
-                        has a Dropbear secure shell (SSH) server that runs
-                        with the root password disabled.
-                        The <filename>core-image-full-cmdline</filename> and
-                        <filename>core-image-lsb</filename> QEMU images
-                        have OpenSSH instead of Dropbear.
-                        Including these SSH servers allow you to use standard
-                        <filename>ssh</filename> and <filename>scp</filename>
-                        commands.
-                        The <filename>core-image-minimal</filename> QEMU image,
-                        however, contains no SSH server.
-                        </para></listitem>
-                    <listitem><para>
-                        You can use a provided, user-space NFS server to boot
-                        the QEMU session using a local copy of the root
-                        filesystem on the host.
-                        In order to make this connection, you must extract a
-                        root filesystem tarball by using the
-                        <filename>runqemu-extract-sdk</filename> command.
-                        After running the command, you must then point the
-                        <filename>runqemu</filename>
-                        script to the extracted directory instead of a root
-                        filesystem image file.
-                        See the
-                        "<link linkend='qemu-running-under-a-network-file-system-nfs-server'>Running Under a Network File System (NFS) Server</link>"
-                        section for more information.
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-        </para>
-    </section>
-
-    <section id='qemu-dev-command-line-syntax'>
-        <title>QEMU Command-Line Syntax</title>
-
-        <para>
-            The basic <filename>runqemu</filename> command syntax is as
-            follows:
-            <literallayout class='monospaced'>
-     $ runqemu [<replaceable>option</replaceable> ]  [...]
-            </literallayout>
-            Based on what you provide on the command line,
-            <filename>runqemu</filename> does a good job of figuring out what
-            you are trying to do.
-            For example, by default, QEMU looks for the most recently built
-            image according to the timestamp when it needs to look for an
-            image.
-            Minimally, through the use of options, you must provide either
-            a machine name, a virtual machine image
-            (<filename>*wic.vmdk</filename>), or a kernel image
-            (<filename>*.bin</filename>).
-        </para>
-
-        <para>
-            Following is the command-line help output for the
-            <filename>runqemu</filename> command:
-            <literallayout class='monospaced'>
-     $ runqemu --help
-
-     Usage: you can run this script with any valid combination
-     of the following environment variables (in any order):
-       KERNEL - the kernel image file to use
-       ROOTFS - the rootfs image file or nfsroot directory to use
-       MACHINE - the machine name (optional, autodetected from KERNEL filename if unspecified)
-       Simplified QEMU command-line options can be passed with:
-         nographic - disable video console
-         serial - enable a serial console on /dev/ttyS0
-         slirp - enable user networking, no root privileges is required
-         kvm - enable KVM when running x86/x86_64 (VT-capable CPU required)
-         kvm-vhost - enable KVM with vhost when running x86/x86_64 (VT-capable CPU required)
-         publicvnc - enable a VNC server open to all hosts
-         audio - enable audio
-         [*/]ovmf* - OVMF firmware file or base name for booting with UEFI
-       tcpserial=&lt;port&gt; - specify tcp serial port number
-       biosdir=&lt;dir&gt; - specify custom bios dir
-       biosfilename=&lt;filename&gt; - specify bios filename
-       qemuparams=&lt;xyz&gt; - specify custom parameters to QEMU
-       bootparams=&lt;xyz&gt; - specify custom kernel parameters during boot
-       help, -h, --help: print this text
-
-     Examples:
-       runqemu
-       runqemu qemuarm
-       runqemu tmp/deploy/images/qemuarm
-       runqemu tmp/deploy/images/qemux86/&lt;qemuboot.conf&gt;
-       runqemu qemux86-64 core-image-sato ext4
-       runqemu qemux86-64 wic-image-minimal wic
-       runqemu path/to/bzImage-qemux86.bin path/to/nfsrootdir/ serial
-       runqemu qemux86 iso/hddimg/wic.vmdk/wic.qcow2/wic.vdi/ramfs/cpio.gz...
-       runqemu qemux86 qemuparams="-m 256"
-       runqemu qemux86 bootparams="psplash=false"
-       runqemu path/to/&lt;image&gt;-&lt;machine&gt;.wic
-       runqemu path/to/&lt;image&gt;-&lt;machine&gt;.wic.vmdk
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='qemu-dev-runqemu-command-line-options'>
-        <title><filename>runqemu</filename> Command-Line Options</title>
-
-        <para>
-            Following is a description of <filename>runqemu</filename>
-            options you can provide on the command line:
-            <note><title>Tip</title>
-                If you do provide some "illegal" option combination or perhaps
-                you do not provide enough in the way of options,
-                <filename>runqemu</filename> provides appropriate error
-                messaging to help you correct the problem.
-            </note>
-            <itemizedlist>
-                <listitem><para>
-                    <replaceable>QEMUARCH</replaceable>:
-                    The QEMU machine architecture, which must be "qemuarm",
-                    "qemuarm64", "qemumips", "qemumips64", "qemuppc",
-                    "qemux86", or "qemux86-64".
-                    </para></listitem>
-                <listitem><para>
-                    <filename><replaceable>VM</replaceable></filename>:
-                    The virtual machine image, which must be a
-                    <filename>.wic.vmdk</filename> file.
-                    Use this option when you want to boot a
-                    <filename>.wic.vmdk</filename> image.
-                    The image filename you provide must contain one of the
-                    following strings: "qemux86-64", "qemux86", "qemuarm",
-                    "qemumips64", "qemumips", "qemuppc", or "qemush4".
-                    </para></listitem>
-                <listitem><para>
-                    <replaceable>ROOTFS</replaceable>:
-                    A root filesystem that has one of the following
-                    filetype extensions: "ext2", "ext3", "ext4", "jffs2",
-                    "nfs", or "btrfs".
-                    If the filename you provide for this option uses "nfs", it
-                    must provide an explicit root filesystem path.
-                    </para></listitem>
-                <listitem><para>
-                    <replaceable>KERNEL</replaceable>:
-                    A kernel image, which is a <filename>.bin</filename> file.
-                    When you provide a <filename>.bin</filename> file,
-                    <filename>runqemu</filename> detects it and assumes the
-                    file is a kernel image.
-                    </para></listitem>
-                <listitem><para>
-                    <replaceable>MACHINE</replaceable>:
-                    The architecture of the QEMU machine, which must be one
-                    of the following: "qemux86", "qemux86-64", "qemuarm",
-                    "qemuarm64", "qemumips", "qemumips64", or "qemuppc".
-                    The <replaceable>MACHINE</replaceable> and
-                    <replaceable>QEMUARCH</replaceable> options are basically
-                    identical.
-                    If you do not provide a <replaceable>MACHINE</replaceable>
-                    option, <filename>runqemu</filename> tries to determine
-                    it based on other options.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>ramfs</filename>:
-                    Indicates you are booting an initial RAM disk (initramfs)
-                    image, which means the <filename>FSTYPE</filename> is
-                    <filename>cpio.gz</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>iso</filename>:
-                    Indicates you are booting an ISO image, which means the
-                    <filename>FSTYPE</filename> is
-                    <filename>.iso</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>nographic</filename>:
-                    Disables the video console, which sets the console to
-                    "ttys0".
-                    This option is useful when you have logged into a server
-                    and you do not want to disable forwarding from the
-                    X Window System (X11) to your workstation or laptop.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>serial</filename>:
-                    Enables a serial console on
-                    <filename>/dev/ttyS0</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>biosdir</filename>:
-                    Establishes a custom directory for BIOS, VGA BIOS and
-                    keymaps.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>biosfilename</filename>:
-                    Establishes a custom BIOS name.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>qemuparams=\"<replaceable>xyz</replaceable>\"</filename>:
-                    Specifies custom QEMU parameters.
-                    Use this option to pass options other than the simple
-                    "kvm" and "serial" options.
-                    </para></listitem>
-                <listitem><para><filename>bootparams=\"<replaceable>xyz</replaceable>\"</filename>:
-                    Specifies custom boot parameters for the kernel.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>audio</filename>:
-                    Enables audio in QEMU.
-                    The <replaceable>MACHINE</replaceable> option must be
-                    either "qemux86" or "qemux86-64" in order for audio to be
-                    enabled.
-                    Additionally, the <filename>snd_intel8x0</filename>
-                    or <filename>snd_ens1370</filename> driver must be
-                    installed in linux guest.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>slirp</filename>:
-                    Enables "slirp" networking, which is a different way
-                    of networking that does not need root access
-                    but also is not as easy to use or comprehensive
-                    as the default.
-                    </para></listitem>
-                <listitem><para id='kvm-cond'>
-                    <filename>kvm</filename>:
-                    Enables KVM when running "qemux86" or "qemux86-64"
-                    QEMU architectures.
-                    For KVM to work, all the following conditions must be met:
-                    <itemizedlist>
-                        <listitem><para>
-                            Your <replaceable>MACHINE</replaceable> must be either
-qemux86" or "qemux86-64".
-                            </para></listitem>
-                        <listitem><para>
-                            Your build host has to have the KVM modules
-                            installed, which are
-                            <filename>/dev/kvm</filename>.
-                            </para></listitem>
-                        <listitem><para>
-                            The  build host <filename>/dev/kvm</filename>
-                            directory has to be both writable and readable.
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>kvm-vhost</filename>:
-                    Enables KVM with VHOST support when running "qemux86"
-                    or "qemux86-64" QEMU architectures.
-                    For KVM with VHOST to work, the following conditions must
-                    be met:
-                    <itemizedlist>
-                        <listitem><para>
-                            <link linkend='kvm-cond'>kvm</link> option
-                            conditions must be met.
-                            </para></listitem>
-                        <listitem><para>
-                            Your build host has to have virtio net device, which
-                            are <filename>/dev/vhost-net</filename>.
-                            </para></listitem>
-                        <listitem><para>
-                            The build host <filename>/dev/vhost-net</filename>
-                            directory has to be either readable or writable
-                            and "slirp-enabled".
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>publicvnc</filename>:
-                    Enables a VNC server open to all hosts.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/dev-manual/dev-manual-start.rst b/poky/documentation/dev-manual/dev-manual-start.rst
index d9c1e4d..333c6a5 100644
--- a/poky/documentation/dev-manual/dev-manual-start.rst
+++ b/poky/documentation/dev-manual/dev-manual-start.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ***********************************
 Setting Up to Use the Yocto Project
diff --git a/poky/documentation/dev-manual/dev-manual-start.xml b/poky/documentation/dev-manual/dev-manual-start.xml
deleted file mode 100644
index 9ff9ac4..0000000
--- a/poky/documentation/dev-manual/dev-manual-start.xml
+++ /dev/null
@@ -1,1288 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='dev-manual-start'>
-
-<title>Setting Up to Use the Yocto Project</title>
-
-<para>
-    This chapter provides guidance on how to prepare to use the
-    Yocto Project.
-    You can learn about creating a team environment that develops using the
-    Yocto Project, how to set up a
-    <ulink url='&YOCTO_DOCS_REF_URL;#hardware-build-system-term'>build host</ulink>,
-    how to locate Yocto Project source repositories, and how to create local
-    Git repositories.
-</para>
-
-<section id="usingpoky-changes-collaborate">
-    <title>Creating a Team Development Environment</title>
-
-    <para>
-        It might not be immediately clear how you can use the Yocto
-        Project in a team development environment, or how to scale it for a
-        large team of developers.
-        You can adapt the Yocto Project to many different use cases and
-        scenarios;
-        however, this flexibility could cause difficulties if you are trying
-        to create a working setup that scales effectively.
-    </para>
-
-    <para>
-        To help you understand how to set up this type of environment,
-        this section presents a procedure that gives you information
-        that can help you get the results you want.
-        The procedure is high-level and presents some of the project's most
-        successful experiences, practices, solutions, and available
-        technologies that have proved to work well in the past;
-        however, keep in mind, the procedure here is simply a starting point.
-        You can build off these steps and customize the procedure to fit any
-        particular working environment and set of practices.
-        <orderedlist>
-            <listitem><para>
-                <emphasis>Determine Who is Going to be Developing:</emphasis>
-                You first need to understand who is going to be doing anything
-                related to the Yocto Project and determine their roles.
-                Making this determination is essential to completing
-                subsequent steps, which are to get your equipment together
-                and set up your development environment's hardware topology.
-                </para>
-
-                <para>The following roles exist:
-                    <itemizedlist>
-                        <listitem><para>
-                            <emphasis>Application Developer:</emphasis>
-                            This type of developer does application level work
-                            on top of an existing software stack.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Core System Developer:</emphasis>
-                            This type of developer works on the contents of the
-                            operating system image itself.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Build Engineer:</emphasis>
-                            This type of developer manages Autobuilders and
-                            releases. Depending on the specifics of the environment,
-                            not all situations might need a Build Engineer.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Test Engineer:</emphasis>
-                            This type of developer creates and manages automated
-                            tests that are used to ensure all application and
-                            core system development meets desired quality
-                            standards.
-                            </para></listitem>
-                    </itemizedlist>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Gather the Hardware:</emphasis>
-                Based on the size and make-up of the team, get the hardware
-                together.
-                Ideally, any development, build, or test engineer uses
-                a system that runs a supported Linux distribution.
-                These systems, in general, should be high performance
-                (e.g. dual, six-core Xeons with 24 Gbytes of RAM and plenty
-                of disk space).
-                You can help ensure efficiency by having any machines used
-                for testing or that run Autobuilders be as high performance
-                as possible.
-                <note>
-                    Given sufficient processing power, you might also consider
-                    building Yocto Project development containers to be run
-                    under Docker, which is described later.
-                </note>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Understand the Hardware Topology of the Environment:</emphasis>
-                Once you understand the hardware involved and the make-up
-                of the team, you can understand the hardware topology of the
-                development environment.
-                You can get a visual idea of the machines and their roles
-                across the development environment.
-
-<!--
-                The following figure shows a moderately sized Yocto Project
-                development environment.
-
-                <para role="writernotes">
-                Need figure.</para>
--->
-
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Use Git as Your Source Control Manager (SCM):</emphasis>
-                Keeping your
-                <ulink url='&YOCTO_DOCS_REF_URL;#metadata'>Metadata</ulink>
-                (i.e. recipes, configuration files, classes, and so forth)
-                and any software you are developing under the control of an SCM
-                system that is compatible   with the OpenEmbedded build system
-                is advisable.
-                Of all of the SCMs supported by BitBake, the Yocto Project team strongly
-                recommends using
-                <ulink url='&YOCTO_DOCS_OM_URL;#git'>Git</ulink>.
-                Git is a distributed system that is easy to back up,
-                allows you to work remotely, and then connects back to the
-                infrastructure.
-                <note>
-                    For information about BitBake, see the
-                    <ulink url='&YOCTO_DOCS_BB_URL;'>BitBake User Manual</ulink>.
-                </note></para>
-
-                <para>It is relatively easy to set up Git services and create
-                infrastructure like
-                <ulink url='&YOCTO_GIT_URL;'>http://git.yoctoproject.org</ulink>,
-                which is based on server software called
-                <filename>gitolite</filename> with <filename>cgit</filename>
-                being used to generate the web interface that lets you view the
-                repositories.
-                The <filename>gitolite</filename> software identifies users
-                using SSH keys and allows branch-based access controls to
-                repositories that you can control as little or as much as
-                necessary.
-                <note>
-                   The setup of these services is beyond the scope of this
-                   manual.
-                   However, sites such as the following exist that describe
-                   how to perform setup:
-                   <itemizedlist>
-                       <listitem><para>
-                           <ulink url='http://git-scm.com/book/ch4-8.html'>Git documentation</ulink>:
-                           Describes how to install
-                           <filename>gitolite</filename> on the server.
-                           </para></listitem>
-                       <listitem><para>
-                           <ulink url='http://gitolite.com'>Gitolite</ulink>:
-                            Information for <filename>gitolite</filename>.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='https://git.wiki.kernel.org/index.php/Interfaces,_frontends,_and_tools'>Interfaces, frontends, and tools</ulink>:
-                            Documentation on how to create interfaces and
-                            frontends for Git.
-                            </para></listitem>
-                    </itemizedlist>
-                </note>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Set up the Application Development Machines:</emphasis>
-                As mentioned earlier, application developers are creating
-                applications on top of existing software stacks.
-                Following are some best practices for setting up machines
-                used for application development:
-                <itemizedlist>
-                    <listitem><para>
-                        Use a pre-built toolchain that contains the software
-                        stack itself.
-                        Then, develop the application code on top of the
-                        stack.
-                        This method works well for small numbers of relatively
-                        isolated applications.
-                        </para></listitem>
-                    <listitem><para>
-                        Keep your cross-development toolchains updated.
-                        You can do this through provisioning either as new
-                        toolchain downloads or as updates through a package
-                        update mechanism using <filename>opkg</filename>
-                        to provide updates to an existing toolchain.
-                        The exact mechanics of how and when to do this depend
-                        on local policy.
-                        </para></listitem>
-                    <listitem><para>
-                        Use multiple toolchains installed locally into
-                        different locations to allow development across
-                        versions.
-                        </para></listitem>
-                </itemizedlist>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Set up the Core Development Machines:</emphasis>
-                As mentioned earlier, core developers work on the contents of
-                the operating system itself.
-                Following are some best practices for setting up machines
-                used for developing images:
-                <itemizedlist>
-                    <listitem><para>
-                        Have the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>
-                        available on the developer workstations so developers
-                        can run their own builds and directly rebuild the
-                        software stack.
-                        </para></listitem>
-                    <listitem><para>
-                        Keep the core system unchanged as much as
-                        possible and do your work in layers on top of the
-                        core system.
-                        Doing so gives you a greater level of portability when
-                        upgrading to new versions of the core system or Board
-                        Support Packages (BSPs).
-                        </para></listitem>
-                    <listitem><para>
-                        Share layers amongst the developers of a
-                        particular project and contain the policy configuration
-                        that defines the project.
-                        </para></listitem>
-                </itemizedlist>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Set up an Autobuilder:</emphasis>
-                Autobuilders are often the core of the development
-                environment.
-                It is here that changes from individual developers are brought
-                together and centrally tested.
-                Based on this automated build and test environment, subsequent
-                decisions about releases can be made.
-                Autobuilders also allow for "continuous integration" style
-                testing of software components and regression identification
-                and tracking.</para>
-
-                <para>See "<ulink url='http://autobuilder.yoctoproject.org'>Yocto Project Autobuilder</ulink>"
-                for more information and links to buildbot.
-                The Yocto Project team has found this implementation
-                works well in this role.
-                A public example of this is the Yocto Project
-                Autobuilders, which the Yocto Project team uses to test the
-                overall health of the project.</para>
-
-                <para>The features of this system are:
-                <itemizedlist>
-                    <listitem><para>
-                        Highlights when commits break the build.
-                        </para></listitem>
-                    <listitem><para>
-                        Populates an
-                        <ulink url='&YOCTO_DOCS_OM_URL;#shared-state-cache'>sstate cache</ulink>
-                        from which developers can pull rather than requiring
-                        local builds.
-                        </para></listitem>
-                    <listitem><para>
-                        Allows commit hook triggers, which trigger builds when
-                        commits are made.
-                        </para></listitem>
-                    <listitem><para>
-                        Allows triggering of automated image booting
-                        and testing under the QuickEMUlator (QEMU).
-                        </para></listitem>
-                    <listitem><para>
-                        Supports incremental build testing and
-                        from-scratch builds.
-                        </para></listitem>
-                    <listitem><para>
-                        Shares output that allows developer
-                        testing and historical regression investigation.
-                        </para></listitem>
-                    <listitem><para>
-                        Creates output that can be used for releases.
-                        </para></listitem>
-                    <listitem><para>
-                        Allows scheduling of builds so that resources
-                        can be used efficiently.
-                        </para></listitem>
-                </itemizedlist>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Set up Test Machines:</emphasis>
-                Use a small number of shared, high performance systems
-                for testing purposes.
-                Developers can use these systems for wider, more
-                extensive testing while they continue to develop
-                locally using their primary development system.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Document Policies and Change Flow:</emphasis>
-                The Yocto Project uses a hierarchical structure and a
-                pull model.
-                Scripts exist to create and send pull requests
-                (i.e. <filename>create-pull-request</filename> and
-                <filename>send-pull-request</filename>).
-                This model is in line with other open source projects where
-                maintainers are responsible for specific areas of the project
-                and a single maintainer handles the final "top-of-tree" merges.
-                <note>
-                    You can also use a more collective push model.
-                    The <filename>gitolite</filename> software supports both the
-                    push and pull models quite easily.
-                </note></para>
-
-                <para>As with any development environment, it is important
-                to document the policy used as well as any main project
-                guidelines so they are understood by everyone.
-                It is also a good idea to have well-structured
-                commit messages, which are usually a part of a project's
-                guidelines.
-                Good commit messages are essential when looking back in time and
-                trying to understand why changes were made.</para>
-
-                <para>If you discover that changes are needed to the core
-                layer of the project, it is worth sharing those with the
-                community as soon as possible.
-                Chances are if you have discovered the need for changes,
-                someone else in the community needs them also.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Development Environment Summary:</emphasis>
-                Aside from the previous steps, some best practices exist
-                within the Yocto Project development environment.
-                Consider the following:
-                <itemizedlist>
-                    <listitem><para>
-                        Use
-                        <ulink url='&YOCTO_DOCS_OM_URL;#git'>Git</ulink>
-                        as the source control system.
-                        </para></listitem>
-                    <listitem><para>
-                        Maintain your Metadata in layers that make sense
-                        for your situation.
-                        See the
-                        "<ulink url='&YOCTO_DOCS_OM_URL;#the-yocto-project-layer-model'>The Yocto Project Layer Model</ulink>"
-                        section in the Yocto Project Overview and Concepts
-                        Manual and the
-                        "<link linkend='understanding-and-creating-layers'>Understanding and Creating Layers</link>"
-                        section for more information on layers.
-                        </para></listitem>
-                    <listitem><para>
-                        Separate the project's Metadata and code by using
-                        separate Git repositories.
-                        See the
-                        "<ulink url='&YOCTO_DOCS_OM_URL;#yocto-project-repositories'>Yocto Project Source Repositories</ulink>"
-                        section in the Yocto Project Overview and Concepts
-                        Manual for information on these repositories.
-                        See the
-                        "<link linkend='locating-yocto-project-source-files'>Locating Yocto Project Source Files</link>"
-                        section for information on how to set up local Git
-                        repositories for related upstream Yocto Project
-                        Git repositories.
-                        </para></listitem>
-                    <listitem><para>
-                        Set up the directory for the shared state cache
-                        (<ulink url='&YOCTO_DOCS_REF_URL;#var-SSTATE_DIR'><filename>SSTATE_DIR</filename></ulink>)
-                        where it makes sense.
-                        For example, set up the sstate cache on a system used
-                        by developers in the same organization and share the
-                        same source directories on their machines.
-                        </para></listitem>
-                    <listitem><para>
-                        Set up an Autobuilder and have it populate the
-                        sstate cache and source directories.
-                        </para></listitem>
-                    <listitem><para>
-                        The Yocto Project community encourages you
-                        to send patches to the project to fix bugs or add
-                        features.
-                        If you do submit patches, follow the project commit
-                        guidelines for writing good commit messages.
-                        See the "<link linkend='how-to-submit-a-change'>Submitting a Change to the Yocto Project</link>"
-                        section.
-                        </para></listitem>
-                    <listitem><para>
-                        Send changes to the core sooner than later
-                        as others are likely to run into the same issues.
-                        For some guidance on mailing lists to use, see the list
-                        in the
-                        "<link linkend='how-to-submit-a-change'>Submitting a Change to the Yocto Project</link>"
-                        section.
-                        For a description of the available mailing lists, see
-                        the
-                        "<ulink url='&YOCTO_DOCS_REF_URL;#resources-mailinglist'>Mailing Lists</ulink>"
-                        section in the Yocto Project Reference Manual.
-                        </para></listitem>
-                </itemizedlist>
-                </para></listitem>
-        </orderedlist>
-    </para>
-</section>
-
-<section id='dev-preparing-the-build-host'>
-    <title>Preparing the Build Host</title>
-
-    <para>
-        This section provides procedures to set up a system to be used as your
-        <ulink url='&YOCTO_DOCS_REF_URL;#hardware-build-system-term'>build host</ulink>
-        for development using the Yocto Project.
-        Your build host can be a native Linux machine (recommended), it can
-        be a machine (Linux, Mac, or Windows) that uses
-        <ulink url='https://github.com/crops/poky-container'>CROPS</ulink>,
-        which leverages
-        <ulink url='https://www.docker.com/'>Docker Containers</ulink> or it can
-        be a Windows machine capable of running Windows Subsystem For Linux v2 (WSL).
-        <note>
-          The Yocto Project is not compatible with
-          <ulink url='https://en.wikipedia.org/wiki/Windows_Subsystem_for_Linux'>Windows Subsystem for Linux v1</ulink>.
-          It is compatible but not officially supported nor validated with WSLv2.
-          If you still decide to use WSL please upgrade to
-          <ulink url='https://docs.microsoft.com/en-us/windows/wsl/wsl2-install'>WSLv2</ulink>.
-        </note>
-    </para>
-
-    <para>
-        Once your build host is set up to use the Yocto Project,
-        further steps are necessary depending on what you want to
-        accomplish.
-        See the following references for information on how to prepare for
-        Board Support Package (BSP) development and kernel development:
-        <itemizedlist>
-            <listitem><para>
-                <emphasis>BSP Development:</emphasis>
-                See the
-                "<ulink url='&YOCTO_DOCS_BSP_URL;#preparing-your-build-host-to-work-with-bsp-layers'>Preparing Your Build Host to Work With BSP Layers</ulink>"
-                section in the Yocto Project Board Support Package (BSP)
-                Developer's Guide.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Kernel Development:</emphasis>
-                See the
-                "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#preparing-the-build-host-to-work-on-the-kernel'>Preparing the Build Host to Work on the Kernel</ulink>"
-                section in the Yocto Project Linux Kernel Development Manual.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-    <section id='setting-up-a-native-linux-host'>
-        <title>Setting Up a Native Linux Host</title>
-
-        <para>
-            Follow these steps to prepare a native Linux machine as your
-            Yocto Project Build Host:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Use a Supported Linux Distribution:</emphasis>
-                    You should have a reasonably current Linux-based host
-                    system.
-                    You will have the best results with a recent release of
-                    Fedora, openSUSE, Debian, Ubuntu, RHEL or CentOS as these
-                    releases are frequently tested against the Yocto Project
-                    and officially supported.
-                    For a list of the distributions under validation and their
-                    status, see the
-                    "<ulink url='&YOCTO_DOCS_REF_URL;#detailed-supported-distros'>Supported Linux Distributions</ulink>" section
-                    in the Yocto Project Reference Manual and the wiki page at
-                    <ulink url='&YOCTO_WIKI_URL;/wiki/Distribution_Support'>Distribution Support</ulink>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Have Enough Free Memory:</emphasis>
-                    Your system should have at least 50 Gbytes of free disk
-                    space for building images.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Meet Minimal Version Requirements:</emphasis>
-                    The OpenEmbedded build system should be able to run on any
-                    modern distribution that has the following versions for
-                    Git, tar, Python and gcc.
-                    <itemizedlist>
-                        <listitem><para>
-                            Git 1.8.3.1 or greater
-                            </para></listitem>
-                        <listitem><para>
-                            tar 1.28 or greater
-                            </para></listitem>
-                        <listitem><para>
-                            Python 3.5.0 or greater.
-                        </para></listitem>
-                        <listitem><para>
-                            gcc 5.0 or greater.
-                        </para></listitem>
-                    </itemizedlist>
-                    If your build host does not meet any of these three listed
-                    version requirements, you can take steps to prepare the
-                    system so that you can still use the Yocto Project.
-                    See the
-                    "<ulink url='&YOCTO_DOCS_REF_URL;#required-git-tar-python-and-gcc-versions'>Required Git, tar, Python and gcc Versions</ulink>"
-                    section in the Yocto Project Reference Manual for
-                    information.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Install Development Host Packages:</emphasis>
-                    Required development host packages vary depending on your
-                    build host and what you want to do with the Yocto
-                    Project.
-                    Collectively, the number of required packages is large
-                    if you want to be able to cover all cases.</para>
-
-                    <para>For lists of required packages for all scenarios,
-                    see the
-                    "<ulink url='&YOCTO_DOCS_REF_URL;#required-packages-for-the-build-host'>Required Packages for the Build Host</ulink>"
-                    section in the Yocto Project Reference Manual.
-                    </para></listitem>
-            </orderedlist>
-            Once you have completed the previous steps, you are ready to
-            continue using a given development path on your native Linux
-            machine.
-            If you are going to use BitBake, see the
-            "<link linkend='cloning-the-poky-repository'>Cloning the <filename>poky</filename> Repository</link>"
-            section.
-            If you are going to use the Extensible SDK, see the
-            "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-extensible'>Using the Extensible SDK</ulink>"
-            Chapter in the Yocto Project Application Development and the
-            Extensible Software Development Kit (eSDK) manual.
-            If you want to work on the kernel, see the
-            <ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;'>Yocto Project Linux Kernel Development Manual</ulink>.
-            If you are going to use Toaster, see the
-            "<ulink url='&YOCTO_DOCS_TOAST_URL;#toaster-manual-setup-and-use'>Setting Up and Using Toaster</ulink>"
-            section in the Toaster User Manual.
-        </para>
-    </section>
-
-    <section id='setting-up-to-use-crops'>
-        <title>Setting Up to Use CROss PlatformS (CROPS)</title>
-
-        <para>
-            With
-            <ulink url='https://github.com/crops/poky-container'>CROPS</ulink>,
-            which leverages
-            <ulink url='https://www.docker.com/'>Docker Containers</ulink>,
-            you can create a Yocto Project development environment that
-            is operating system agnostic.
-            You can set up a container in which you can develop using the
-            Yocto Project on a Windows, Mac, or Linux  machine.
-        </para>
-
-        <para>
-            Follow these general steps to prepare a Windows, Mac, or Linux
-            machine as your Yocto Project build host:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Determine What Your Build Host Needs:</emphasis>
-                    <ulink url='https://www.docker.com/what-docker'>Docker</ulink>
-                    is a software container platform that you need to install
-                    on the build host.
-                    Depending on your build host, you might have to install
-                    different software to support Docker containers.
-                    Go to the Docker installation page and read about the
-                    platform requirements in
-                    "<ulink url='https://docs.docker.com/install/#supported-platforms'>Supported Platforms</ulink>"
-                    your build host needs to run containers.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Choose What To Install:</emphasis>
-                    Depending on whether or not your build host meets system
-                    requirements, you need to install "Docker CE Stable" or
-                    the "Docker Toolbox".
-                    Most situations call for Docker CE.
-                    However, if you have a build host that does not meet
-                    requirements (e.g. Pre-Windows 10 or Windows 10 "Home"
-                    version), you must install Docker Toolbox instead.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Go to the Install Site for Your Platform:</emphasis>
-                    Click the link for the Docker edition associated with
-                    your build host's native software.
-                    For example, if your build host is running Microsoft
-                    Windows Version 10 and you want the Docker CE Stable
-                    edition, click that link under "Supported Platforms".
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Install the Software:</emphasis>
-                    Once you have understood all the pre-requisites, you can
-                    download and install the appropriate software.
-                    Follow the instructions for your specific machine and
-                    the type of the software you need to install:
-                    <itemizedlist>
-                        <listitem><para>
-                            Install
-                            <ulink url='https://docs.docker.com/docker-for-windows/install/#install-docker-for-windows-desktop-app'>Docker CE for Windows</ulink>
-                            for Windows build hosts that meet requirements.
-                            </para></listitem>
-                        <listitem><para>
-                            Install
-                            <ulink url='https://docs.docker.com/docker-for-mac/install/#install-and-run-docker-for-mac'>Docker CE for Macs</ulink>
-                            for Mac build hosts that meet requirements.
-                            </para></listitem>
-                        <listitem><para>
-                            Install
-                            <ulink url='https://docs.docker.com/toolbox/toolbox_install_windows/'>Docker Toolbox for Windows</ulink>
-                            for Windows build hosts that do not meet Docker
-                            requirements.
-                            </para></listitem>
-                        <listitem><para>
-                            Install
-                            <ulink url='https://docs.docker.com/toolbox/toolbox_install_mac/'>Docker Toolbox for MacOS</ulink>
-                            for Mac build hosts that do not meet Docker
-                            requirements.
-                            </para></listitem>
-                        <listitem><para>
-                            Install
-                            <ulink url='https://docs.docker.com/install/linux/docker-ce/centos/'>Docker CE for CentOS</ulink>
-                            for Linux build hosts running the CentOS
-                            distribution.
-                            </para></listitem>
-                        <listitem><para>
-                            Install
-                            <ulink url='https://docs.docker.com/install/linux/docker-ce/debian/'>Docker CE for Debian</ulink>
-                            for Linux build hosts running the Debian
-                            distribution.
-                            </para></listitem>
-                        <listitem><para>
-                            Install
-                            <ulink url='https://docs.docker.com/install/linux/docker-ce/fedora/'>Docker CE for Fedora</ulink>
-                            for Linux build hosts running the Fedora
-                            distribution.
-                            </para></listitem>
-                        <listitem><para>
-                            Install
-                            <ulink url='https://docs.docker.com/install/linux/docker-ce/ubuntu/'>Docker CE for Ubuntu</ulink>
-                            for Linux build hosts running the Ubuntu
-                            distribution.
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Optionally Orient Yourself With Docker:</emphasis>
-                    If you are unfamiliar with Docker and the container
-                    concept, you can learn more here -
-                    <ulink url='https://docs.docker.com/get-started/'></ulink>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Launch Docker or Docker Toolbox:</emphasis>
-                    You should be able to launch Docker or the Docker Toolbox
-                    and have a terminal shell on your development host.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Set Up the Containers to Use the Yocto Project:</emphasis>
-                    Go to
-                    <ulink url='https://github.com/crops/docker-win-mac-docs/wiki'></ulink>
-                    and follow the directions for your particular
-                    build host (i.e. Linux, Mac, or Windows).</para>
-
-                    <para>Once you complete the setup instructions for your
-                    machine, you have the Poky, Extensible SDK, and Toaster
-                    containers available.
-                    You can click those links from the page and learn more
-                    about using each of those containers.
-                    </para></listitem>
-            </orderedlist>
-            Once you have a container set up, everything is in place to
-            develop just as if you were running on a native Linux machine.
-            If you are going to use the Poky container, see the
-            "<link linkend='cloning-the-poky-repository'>Cloning the <filename>poky</filename> Repository</link>"
-            section.
-            If you are going to use the Extensible SDK container, see the
-            "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-extensible'>Using the Extensible SDK</ulink>"
-            Chapter in the Yocto Project Application Development and the
-            Extensible Software Development Kit (eSDK) manual.
-            If you are going to use the Toaster container, see the
-            "<ulink url='&YOCTO_DOCS_TOAST_URL;#toaster-manual-setup-and-use'>Setting Up and Using Toaster</ulink>"
-            section in the Toaster User Manual.
-        </para>
-    </section>
-
-    <section id='setting-up-to-use-wsl'>
-        <title>Setting Up to Use Windows Subsystem For Linux (WSLv2)</title>
-
-        <para>
-            With <ulink url='https://docs.microsoft.com/en-us/windows/wsl/wsl2-about'>
-            Windows Subsystem for Linux (WSLv2)</ulink>, you can create a
-            Yocto Project development environment that allows you to build
-            on Windows. You can set up a Linux distribution inside Windows
-            in which you can develop using the Yocto Project.
-        </para>
-
-        <para>
-            Follow these general steps to prepare a Windows machine using WSLv2
-            as your Yocto Project build host:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Make sure your Windows 10 machine is capable of running WSLv2:</emphasis>
-                  
-                    WSLv2 is only available for Windows 10 builds > 18917. To
-                    check which build version you are running, you may open a
-                    command prompt on Windows and execute the command "ver".
-                    <literallayout class='monospaced'>
-    C:\Users\myuser> ver
-
-    Microsoft Windows [Version 10.0.19041.153]
-                    </literallayout>
-                    If your build is capable of running WSLv2 you may continue,
-                    for more information on this subject or instructions on how
-                    to upgrade to WSLv2 visit <ulink url='https://docs.microsoft.com/en-us/windows/wsl/wsl2-install'>Windows 10 WSLv2</ulink>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Install the Linux distribution of your choice inside Windows 10:</emphasis>
-                    Once you know your version of Windows 10 supports WSLv2,
-                    you can install the distribution of your choice from the
-                    Microsoft Store.
-                    Open the Microsoft Store and search for Linux. While there
-                    are several Linux distributions available, the assumption
-                    is that your pick will be one of the distributions supported
-                    by the Yocto Project as stated on the instructions for
-                    using a native Linux host.
-                    After making your selection, simply click "Get" to download
-                    and install the distribution.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Check your Linux distribution is using WSLv2:</emphasis>
-                    Open a Windows PowerShell and run:
-                    <literallayout class='monospaced'>
-    C:\WINDOWS\system32> wsl -l -v
-    NAME      STATE           VERSION
-    *Ubuntu    Running         2
-                    </literallayout>
-                    Note the version column which says the WSL version being used by
-                    your distribution, on compatible systems, this can be changed back
-                    at any point in time.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Optionally Orient Yourself on WSL:</emphasis>
-                    If you are unfamiliar with WSL, you can learn more here -
-                    <ulink url='https://docs.microsoft.com/en-us/windows/wsl/wsl2-about'></ulink>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Launch your WSL Distibution:</emphasis>
-                    From the Windows start menu simply launch your WSL distribution
-                    just like any other application.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Optimize your WSLv2 storage often:</emphasis>
-                    Due to the way storage is handled on WSLv2, the storage
-                    space used by the undelying Linux distribution is not
-                    reflected immedately, and since bitbake heavily uses
-                    storage, after several builds, you may be unaware you
-                    are running out of space. WSLv2 uses a VHDX file for
-                    storage, this issue can be easily avoided by manually
-                    optimizing this file often, this can be done in the
-                    following way:
-                    <orderedlist>
-                        <listitem><para>
-                            <emphasis>Find the location of your VHDX file:</emphasis>
-                            First you need to find the distro app package directory,
-                            to achieve this open a Windows Powershell as Administrator
-                            and run:
-                            <literallayout class='monospaced'>
-    C:\WINDOWS\system32> Get-AppxPackage -Name "*Ubuntu*" | Select PackageFamilyName
-    PackageFamilyName
-    -----------------
-    CanonicalGroupLimited.UbuntuonWindows_79abcdefgh
-                            </literallayout>
-                            You should now replace the <replaceable>PackageFamilyName</replaceable>
-                            and your <replaceable>user</replaceable> on the following
-                            path to find your VHDX file: <filename>C:\Users\user\AppData\Local\Packages\PackageFamilyName\LocalState\</filename>
-                            For example:
-                            <literallayout class='monospaced'>
-    ls C:\Users\myuser\AppData\Local\Packages\CanonicalGroupLimited.UbuntuonWindows_79abcdefgh\LocalState\
-    Mode                 LastWriteTime         Length Name
-    -a----         3/14/2020   9:52 PM    57418973184 ext4.vhdx                      
-                            </literallayout>
-                            Your VHDX file path is: <filename>C:\Users\myuser\AppData\Local\Packages\CanonicalGroupLimited.UbuntuonWindows_79abcdefgh\LocalState\ext4.vhdx</filename>
-                            </para></listitem>
-                        <listitem><para><emphasis>Optimize your VHDX file:</emphasis>
-                            Open a Windows Powershell as Administrator to optimize
-                            your VHDX file, shutting down WSL first:
-                            <literallayout class='monospaced'>
-    C:\WINDOWS\system32> wsl --shutdown
-    C:\WINDOWS\system32> optimize-vhd -Path C:\Users\myuser\AppData\Local\Packages\CanonicalGroupLimited.UbuntuonWindows_79abcdefgh\LocalState\ext4.vhdx -Mode full
-                            </literallayout>
-                            A progress bar should be shown while optimizing the VHDX file,
-                            and storage should now be reflected correctly on the Windows
-                            Explorer.
-                            </para></listitem>
-                    </orderedlist>
-                </para></listitem>
-            </orderedlist>
-            <note>
-              The current implementation of WSLv2 does not have out-of-the-box
-              access to external devices such as those connected through a
-              USB port, but it automatically mounts your <filename>C:</filename>
-              drive on <filename>/mnt/c/</filename> (and others), which
-              you can use to share deploy artifacts to be later flashed on
-              hardware through Windows, but your build directory should not
-              reside inside this mountpoint.
-            </note>
-            Once you have WSLv2 set up, everything is in place to
-            develop just as if you were running on a native Linux machine.
-            If you are going to use the Extensible SDK container, see the
-            "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-extensible'>Using the Extensible SDK</ulink>"
-            Chapter in the Yocto Project Application Development and the
-            Extensible Software Development Kit (eSDK) manual.
-            If you are going to use the Toaster container, see the
-            "<ulink url='&YOCTO_DOCS_TOAST_URL;#toaster-manual-setup-and-use'>Setting Up and Using Toaster</ulink>"
-            section in the Toaster User Manual.
-        </para>
-    </section>
-</section>
-
-<section id='locating-yocto-project-source-files'>
-    <title>Locating Yocto Project Source Files</title>
-
-    <para>
-        This section shows you how to locate, fetch and configure the source
-        files you'll need to work with the Yocto Project.
-        <note><title>Notes</title>
-            <itemizedlist>
-                <listitem><para>
-                    For concepts and introductory information about Git as it
-                    is used in the Yocto Project, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#git'>Git</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual.
-                    </para></listitem>
-                <listitem><para>
-                    For concepts on Yocto Project source repositories, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#yocto-project-repositories'>Yocto Project Source Repositories</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual."
-                    </para></listitem>
-            </itemizedlist>
-        </note>
-    </para>
-
-    <section id='accessing-source-repositories'>
-        <title>Accessing Source Repositories</title>
-
-        <para>
-            Working from a copy of the upstream Yocto Project
-            <ulink url='&YOCTO_DOCS_OM_URL;#source-repositories'>Source Repositories</ulink>
-            is the preferred method for obtaining and using a Yocto Project
-            release.
-            You can view the Yocto Project Source Repositories at
-            <ulink url='&YOCTO_GIT_URL;'></ulink>.
-            In particular, you can find the
-            <filename>poky</filename> repository at
-            <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/poky/'></ulink>.
-        </para>
-
-        <para>
-            Use the following procedure to locate the latest upstream copy of
-            the <filename>poky</filename> Git repository:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Access Repositories:</emphasis>
-                    Open a browser and go to
-                    <ulink url='&YOCTO_GIT_URL;'></ulink> to access the
-                    GUI-based interface into the Yocto Project source
-                    repositories.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Select the Repository:</emphasis>
-                    Click on the repository in which you are interested (e.g.
-                    <filename>poky</filename>).
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Find the URL Used to Clone the Repository:</emphasis>
-                    At the bottom of the page, note the URL used to
-                    <ulink url='&YOCTO_DOCS_OM_URL;#git-commands-clone'>clone</ulink>
-                    that repository (e.g.
-                    <filename>&YOCTO_GIT_URL;/poky</filename>).
-                    <note>
-                        For information on cloning a repository, see the
-                        "<link linkend='cloning-the-poky-repository'>Cloning the <filename>poky</filename> Repository</link>"
-                        section.
-                    </note>
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id='accessing-index-of-releases'>
-        <title>Accessing Index of Releases</title>
-
-        <para>
-            Yocto Project maintains an Index of Releases area that contains
-            related files that contribute to the Yocto Project.
-            Rather than Git repositories, these files are tarballs that
-            represent snapshots in time of a given component.
-            <note><title>Tip</title>
-                The recommended method for accessing Yocto Project
-                components is to use Git to clone the upstream repository and
-                work from within that locally cloned repository.
-                The procedure in this section exists should you desire a
-                tarball snapshot of any given component.
-            </note>
-            Follow these steps to locate and download a particular tarball:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Access the Index of Releases:</emphasis>
-                    Open a browser and go to
-                    <ulink url='&YOCTO_DL_URL;/releases'></ulink> to access the
-                    Index of Releases.
-                    The list represents released components (e.g.
-                    <filename>bitbake</filename>,
-                    <filename>sato</filename>, and so on).
-                    <note>
-                        The <filename>yocto</filename> directory contains the
-                        full array of released Poky tarballs.
-                        The <filename>poky</filename> directory in the
-                        Index of Releases was historically used for very
-                        early releases and exists now only for retroactive
-                        completeness.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Select a Component:</emphasis>
-                    Click on any released component in which you are interested
-                    (e.g. <filename>yocto</filename>).
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Find the Tarball:</emphasis>
-                    Drill down to find the associated tarball.
-                    For example, click on <filename>yocto-&DISTRO;</filename> to
-                    view files associated with the Yocto Project &DISTRO;
-                    release (e.g. <filename>poky-&DISTRO_NAME_NO_CAP;-&POKYVERSION;.tar.bz2</filename>,
-                    which is the released Poky tarball).
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Download the Tarball:</emphasis>
-                    Click the tarball to download and save a snapshot of the
-                    given component.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id='using-the-downloads-page'>
-        <title>Using the Downloads Page</title>
-
-        <para>
-            The
-            <ulink url='&YOCTO_HOME_URL;'>Yocto Project Website</ulink>
-            uses a "DOWNLOADS" page from which you can locate and download
-            tarballs of any Yocto Project release.
-            Rather than Git repositories, these files represent snapshot
-            tarballs similar to the tarballs located in the Index of Releases
-            described in the
-            "<link linkend='accessing-index-of-releases'>Accessing Index of Releases</link>"
-            section.
-            <note><title>Tip</title>
-                The recommended method for accessing Yocto Project
-                components is to use Git to clone a repository and work from
-                within that local repository.
-                The procedure in this section exists should you desire a
-                tarball snapshot of any given component.
-            </note>
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Go to the Yocto Project Website:</emphasis>
-                    Open The
-                    <ulink url='&YOCTO_HOME_URL;'>Yocto Project Website</ulink>
-                    in your browser.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Get to the Downloads Area:</emphasis>
-                    Select the "DOWNLOADS" item from the pull-down
-                    "SOFTWARE" tab menu near the top of the page.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Select a Yocto Project Release:</emphasis>
-                    Use the menu next to "RELEASE" to display and choose
-                    a recent or past supported Yocto Project release
-                    (e.g. &DISTRO_NAME_NO_CAP;,
-                    &DISTRO_NAME_NO_CAP_MINUS_ONE;, and so forth).
-                    <note><title>Tip</title>
-                        For a "map" of Yocto Project releases to version
-                        numbers, see the
-                        <ulink url='https://wiki.yoctoproject.org/wiki/Releases'>Releases</ulink>
-                        wiki page.
-                    </note>
-                    You can use the "RELEASE ARCHIVE" link to reveal a menu of
-                    all Yocto Project releases.
-                </para></listitem>
-                <listitem><para>
-                    <emphasis>Download Tools or Board Support Packages (BSPs):</emphasis>
-                    From the "DOWNLOADS" page, you can download tools or
-                    BSPs as well.
-                    Just scroll down the page and look for what you need.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id='accessing-nightly-builds'>
-        <title>Accessing Nightly Builds</title>
-
-        <para>
-            Yocto Project maintains an area for nightly builds that contains
-            tarball releases at <ulink url='&YOCTO_AB_NIGHTLY_URL;'/>.
-            These builds include Yocto Project releases ("poky"),
-            toolchains, and builds for supported machines.
-        </para>
-
-        <para>
-            Should you ever want to access a nightly build of a particular
-            Yocto Project component, use the following procedure:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Locate the Index of Nightly Builds:</emphasis>
-                    Open a browser and go to
-                    <ulink url='&YOCTO_AB_NIGHTLY_URL;'/> to access the
-                    Nightly Builds.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Select a Date:</emphasis>
-                    Click on the date in which you are interested.
-                    If you want the latest builds, use "CURRENT".
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Select a Build:</emphasis>
-                    Choose the area in which you are interested.
-                    For example, if you are looking for the most recent
-                    toolchains, select the "toolchain" link.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Find the Tarball:</emphasis>
-                    Drill down to find the associated tarball.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Download the Tarball:</emphasis>
-                    Click the tarball to download and save a snapshot of the
-                    given component.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-</section>
-
-<section id='cloning-and-checking-out-branches'>
-    <title>Cloning and Checking Out Branches</title>
-
-    <para>
-        To use the Yocto Project for development, you need a release locally
-        installed on your development system.
-        This locally installed set of files is referred to as the
-        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-        in the Yocto Project documentation.
-    </para>
-
-    <para>
-        The preferred method of creating your Source Directory is by using
-        <ulink url='&YOCTO_DOCS_OM_URL;#git'>Git</ulink> to clone a local
-        copy of the upstream <filename>poky</filename> repository.
-        Working from a cloned copy of the upstream repository allows you
-        to contribute back into the Yocto Project or to simply work with
-        the latest software on a development branch.
-        Because Git maintains and creates an upstream repository with
-        a complete history of changes and you are working with a local
-        clone of that repository, you have access to all the Yocto
-        Project development branches and tag names used in the upstream
-        repository.
-    </para>
-
-    <section id='cloning-the-poky-repository'>
-        <title>Cloning the <filename>poky</filename> Repository</title>
-
-        <para>
-            Follow these steps to create a local version of the
-            upstream
-            <ulink url='&YOCTO_DOCS_REF_URL;#poky'><filename>poky</filename></ulink>
-            Git repository.
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Set Your Directory:</emphasis>
-                    Change your working directory to where you want to
-                    create your local copy of
-                    <filename>poky</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Clone the Repository:</emphasis>
-                    The following example command clones the
-                    <filename>poky</filename> repository and uses
-                    the default name "poky" for your local repository:
-                    <literallayout class='monospaced'>
-     $ git clone git://git.yoctoproject.org/poky
-     Cloning into 'poky'...
-     remote: Counting objects: 432160, done.
-     remote: Compressing objects: 100% (102056/102056), done.
-     remote: Total 432160 (delta 323116), reused 432037 (delta 323000)
-     Receiving objects: 100% (432160/432160), 153.81 MiB | 8.54 MiB/s, done.
-     Resolving deltas: 100% (323116/323116), done.
-     Checking connectivity... done.
-                    </literallayout>
-                    Unless you specify a specific development branch or
-                    tag name, Git clones the "master" branch, which results
-                    in a snapshot of the latest development changes for
-                    "master".
-                    For information on how to check out a specific
-                    development branch or on how to check out a local
-                    branch based on a tag name, see the
-                    "<link linkend='checking-out-by-branch-in-poky'>Checking Out By Branch in Poky</link>"
-                    and
-                    <link linkend='checkout-out-by-tag-in-poky'>Checking Out By Tag in Poky</link>"
-                    sections, respectively.</para>
-
-                    <para>Once the local repository is created, you can
-                    change to that directory and check its status.
-                    Here, the single "master" branch exists on your system
-                    and by default, it is checked out:
-                    <literallayout class='monospaced'>
-     $ cd ~/poky
-     $ git status
-     On branch master
-     Your branch is up-to-date with 'origin/master'.
-     nothing to commit, working directory clean
-     $ git branch
-     * master
-                    </literallayout>
-                    Your local repository of poky is identical to the
-                    upstream poky repository at the time from which it was
-                    cloned.
-                    As you work with the local branch, you can periodically
-                    use the <filename>git pull &dash;&dash;rebase</filename>
-                    command to be sure you are up-to-date with the upstream
-                    branch.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id='checking-out-by-branch-in-poky'>
-        <title>Checking Out by Branch in Poky</title>
-
-        <para>
-            When you clone the upstream poky repository, you have access to
-            all its development branches.
-            Each development branch in a repository is unique as it forks
-            off the "master" branch.
-            To see and use the files of a particular development branch
-            locally, you need to know the branch name and then specifically
-            check out that development branch.
-            <note>
-                Checking out an active development branch by branch name
-                gives you a snapshot of that particular branch at the time
-                you check it out.
-                Further development on top of the branch that occurs after
-                check it out can occur.
-            </note>
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Switch to the Poky Directory:</emphasis>
-                    If you have a local poky Git repository, switch to that
-                    directory.
-                    If you do not have the local copy of poky, see the
-                    "<link linkend='cloning-the-poky-repository'>Cloning the <filename>poky</filename> Repository</link>"
-                    section.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Determine Existing Branch Names:</emphasis>
-                    <literallayout class='monospaced'>
-     $ git branch -a
-     * master
-       remotes/origin/1.1_M1
-       remotes/origin/1.1_M2
-       remotes/origin/1.1_M3
-       remotes/origin/1.1_M4
-       remotes/origin/1.2_M1
-       remotes/origin/1.2_M2
-       remotes/origin/1.2_M3
-           .
-           .
-           .
-       remotes/origin/thud
-       remotes/origin/thud-next
-       remotes/origin/warrior
-       remotes/origin/warrior-next
-       remotes/origin/zeus
-       remotes/origin/zeus-next
-       ... and so on ...
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Check out the Branch:</emphasis>
-                    Check out the development branch in which you want to work.
-                    For example, to access the files for the Yocto Project
-                    &DISTRO; Release (&DISTRO_NAME;), use the following command:
-                    <literallayout class='monospaced'>
-     $ git checkout -b &DISTRO_NAME_NO_CAP; origin/&DISTRO_NAME_NO_CAP;
-     Branch &DISTRO_NAME_NO_CAP; set up to track remote branch &DISTRO_NAME_NO_CAP; from origin.
-     Switched to a new branch '&DISTRO_NAME_NO_CAP;'
-                    </literallayout>
-                    The previous command checks out the "&DISTRO_NAME_NO_CAP;"
-                    development branch and reports that the branch is tracking
-                    the upstream "origin/&DISTRO_NAME_NO_CAP;" branch.</para>
-
-                    <para>The following command displays the branches
-                    that are now part of your local poky repository.
-                    The asterisk character indicates the branch that is
-                    currently checked out for work:
-                    <literallayout class='monospaced'>
-     $ git branch
-       master
-     * &DISTRO_NAME_NO_CAP;
-                    </literallayout>
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id='checkout-out-by-tag-in-poky'>
-        <title>Checking Out by Tag in Poky</title>
-
-        <para>
-            Similar to branches, the upstream repository uses tags
-            to mark specific commits associated with significant points in
-            a development branch (i.e. a release point or stage of a
-            release).
-            You might want to set up a local branch based on one of those
-            points in the repository.
-            The process is similar to checking out by branch name except you
-            use tag names.
-            <note>
-                Checking out a branch based on a tag gives you a
-                stable set of files not affected by development on the
-                branch above the tag.
-            </note>
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Switch to the Poky Directory:</emphasis>
-                    If you have a local poky Git repository, switch to that
-                    directory.
-                    If you do not have the local copy of poky, see the
-                    "<link linkend='cloning-the-poky-repository'>Cloning the <filename>poky</filename> Repository</link>"
-                    section.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Fetch the Tag Names:</emphasis>
-                    To checkout the branch based on a tag name, you need to
-                    fetch the upstream tags into your local repository:
-                    <literallayout class='monospaced'>
-     $ git fetch --tags
-     $
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>List the Tag Names:</emphasis>
-                    You can list the tag names now:
-                    <literallayout class='monospaced'>
-     $ git tag
-     1.1_M1.final
-     1.1_M1.rc1
-     1.1_M1.rc2
-     1.1_M2.final
-     1.1_M2.rc1
-        .
-        .
-        .
-     yocto-2.5
-     yocto-2.5.1
-     yocto-2.5.2
-     yocto-2.5.3
-     yocto-2.6
-     yocto-2.6.1
-     yocto-2.6.2
-     yocto-2.7
-     yocto_1.5_M5.rc8
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Check out the Branch:</emphasis>
-                    <literallayout class='monospaced'>
-     $ git checkout tags/&DISTRO_REL_TAG; -b my_yocto_&DISTRO;
-     Switched to a new branch 'my_yocto_&DISTRO;'
-     $ git branch
-       master
-     * my_yocto_&DISTRO;
-                    </literallayout>
-                    The previous command creates and checks out a local
-                    branch named "my_yocto_&DISTRO;", which is based on
-                    the commit in the upstream poky repository that has
-                    the same tag.
-                    In this example, the files you have available locally
-                    as a result of the <filename>checkout</filename>
-                    command are a snapshot of the
-                    "&DISTRO_NAME_NO_CAP;" development branch at the point
-                    where Yocto Project &DISTRO; was released.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-</section>
-
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/dev-manual/dev-manual.rst b/poky/documentation/dev-manual/dev-manual.rst
index c629067..8f09224 100644
--- a/poky/documentation/dev-manual/dev-manual.rst
+++ b/poky/documentation/dev-manual/dev-manual.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ======================================
 Yocto Project Development Tasks Manual
diff --git a/poky/documentation/dev-manual/dev-manual.xml b/poky/documentation/dev-manual/dev-manual.xml
deleted file mode 100755
index 6643993..0000000
--- a/poky/documentation/dev-manual/dev-manual.xml
+++ /dev/null
@@ -1,195 +0,0 @@
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<book id='dev-manual' lang='en'
-      xmlns:xi="http://www.w3.org/2003/XInclude"
-      xmlns="http://docbook.org/ns/docbook"
-      >
-    <bookinfo>
-
-        <mediaobject>
-            <imageobject>
-                <imagedata fileref='figures/dev-title.png'
-                    format='SVG'
-                    align='left' scalefit='1' width='100%'/>
-            </imageobject>
-        </mediaobject>
-
-        <title>
-            Yocto Project Development Tasks Manual
-        </title>
-
-        <authorgroup>
-            <author>
-                <affiliation>
-                    <orgname>&ORGNAME;</orgname>
-                </affiliation>
-                <email>&ORGEMAIL;</email>
-            </author>
-        </authorgroup>
-
-        <revhistory>
-            <revision>
-                <revnumber>1.1</revnumber>
-                <date>October 2011</date>
-                <revremark>The initial document released with the Yocto Project 1.1 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.2</revnumber>
-                <date>April 2012</date>
-                <revremark>Released with the Yocto Project 1.2 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.3</revnumber>
-                <date>October 2012</date>
-                <revremark>Released with the Yocto Project 1.3 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.4</revnumber>
-                <date>April 2013</date>
-                <revremark>Released with the Yocto Project 1.4 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.5</revnumber>
-                <date>October 2013</date>
-                <revremark>Released with the Yocto Project 1.5 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.6</revnumber>
-                <date>April 2014</date>
-                <revremark>Released with the Yocto Project 1.6 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.7</revnumber>
-                <date>October 2014</date>
-                <revremark>Released with the Yocto Project 1.7 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.8</revnumber>
-                <date>April 2015</date>
-                <revremark>Released with the Yocto Project 1.8 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.0</revnumber>
-                <date>October 2015</date>
-                <revremark>Released with the Yocto Project 2.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.1</revnumber>
-                <date>April 2016</date>
-                <revremark>Released with the Yocto Project 2.1 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.2</revnumber>
-                <date>October 2016</date>
-                <revremark>Released with the Yocto Project 2.2 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.3</revnumber>
-                <date>May 2017</date>
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-                       To report any inaccuracies or problems with this
-                       (or any other Yocto Project) manual, send an email to
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-                       <filename>docs@lists.yoctoproject.org</filename> or
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- .photo {
-  float: right;
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-  margin-top: 0em;
-  max-width:      17em;
-  border:     1px solid gray;
-  padding:    3px;
-  background: white;
-}
- .seperator {
-   padding-top: 2em;
-   clear: both;
-  }
-
-  #validators {
-      margin-top: 5em;
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-      color: #777;
-  }
-  @media print {
-      body {
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diff --git a/poky/documentation/dev-manual/history.rst b/poky/documentation/dev-manual/history.rst
index 8b149a6..1ba3124 100644
--- a/poky/documentation/dev-manual/history.rst
+++ b/poky/documentation/dev-manual/history.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ***********************
 Manual Revision History
diff --git a/poky/documentation/index.rst b/poky/documentation/index.rst
index 8213169..2891a98 100644
--- a/poky/documentation/index.rst
+++ b/poky/documentation/index.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 .. The Yocto Project documentation master file, created by
    sphinx-quickstart on Mon Apr 13 09:38:33 2020.
diff --git a/poky/documentation/kernel-dev/history.rst b/poky/documentation/kernel-dev/history.rst
index 3ffb7ea..761b506 100644
--- a/poky/documentation/kernel-dev/history.rst
+++ b/poky/documentation/kernel-dev/history.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ***********************
 Manual Revision History
diff --git a/poky/documentation/kernel-dev/kernel-dev-advanced.rst b/poky/documentation/kernel-dev/kernel-dev-advanced.rst
index 36133ca..eeb8f87 100644
--- a/poky/documentation/kernel-dev/kernel-dev-advanced.rst
+++ b/poky/documentation/kernel-dev/kernel-dev-advanced.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *******************************************************
 Working with Advanced Metadata (``yocto-kernel-cache``)
diff --git a/poky/documentation/kernel-dev/kernel-dev-advanced.xml b/poky/documentation/kernel-dev/kernel-dev-advanced.xml
deleted file mode 100644
index 3717796..0000000
--- a/poky/documentation/kernel-dev/kernel-dev-advanced.xml
+++ /dev/null
@@ -1,1257 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='kernel-dev-advanced'>
-<title>Working with Advanced Metadata (<filename>yocto-kernel-cache</filename>)</title>
-
-<section id='kernel-dev-advanced-overview'>
-    <title>Overview</title>
-
-    <para>
-        In addition to supporting configuration fragments and patches, the
-        Yocto Project kernel tools also support rich
-        <ulink url='&YOCTO_DOCS_REF_URL;#metadata'>Metadata</ulink> that you can
-        use to define complex policies and Board Support Package (BSP) support.
-        The purpose of the Metadata and the tools that manage it is
-        to help you manage the complexity of the configuration and sources
-        used to support multiple BSPs and Linux kernel types.
-    </para>
-
-    <para>
-        Kernel Metadata exists in many places.
-        One area in the Yocto Project
-        <ulink url='&YOCTO_DOCS_OM_URL;#source-repositories'>Source Repositories</ulink>
-        is the <filename>yocto-kernel-cache</filename> Git repository.
-        You can find this repository grouped under the "Yocto Linux Kernel"
-        heading in the
-        <ulink url='&YOCTO_GIT_URL;'>Yocto Project Source Repositories</ulink>.
-    </para>
-
-    <para>
-        Kernel development tools ("kern-tools") exist also in the Yocto
-        Project Source Repositories under the "Yocto Linux Kernel" heading
-        in the <filename>yocto-kernel-tools</filename> Git repository.
-        The recipe that builds these tools is
-        <filename>meta/recipes-kernel/kern-tools/kern-tools-native_git.bb</filename>
-        in the
-        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-        (e.g. <filename>poky</filename>).
-    </para>
-</section>
-
-<section id='using-kernel-metadata-in-a-recipe'>
-    <title>Using Kernel Metadata in a Recipe</title>
-
-    <para>
-        As mentioned in the introduction, the Yocto Project contains kernel
-        Metadata, which is located in the
-        <filename>yocto-kernel-cache</filename> Git repository.
-        This Metadata defines Board Support Packages (BSPs) that
-        correspond to definitions in linux-yocto recipes for corresponding BSPs.
-        A BSP consists of an aggregation of kernel policy and enabled
-        hardware-specific features.
-        The BSP can be influenced from within the linux-yocto recipe.
-        <note>
-            A Linux kernel recipe that contains kernel Metadata (e.g.
-            inherits from the <filename>linux-yocto.inc</filename> file)
-            is said to be a "linux-yocto style" recipe.
-        </note>
-    </para>
-
-    <para>
-        Every linux-yocto style recipe must define the
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-KMACHINE'><filename>KMACHINE</filename></ulink>
-        variable.
-        This variable is typically set to the same value as the
-        <filename>MACHINE</filename> variable, which is used by
-        <ulink url='&YOCTO_DOCS_REF_URL;#bitbake-term'>BitBake</ulink>.
-        However, in some cases, the variable might instead refer to the
-        underlying platform of the <filename>MACHINE</filename>.
-    </para>
-
-    <para>
-        Multiple BSPs can reuse the same <filename>KMACHINE</filename>
-        name if they are built using the same BSP description.
-        Multiple Corei7-based BSPs could share the same "intel-corei7-64"
-        value for <filename>KMACHINE</filename>.
-        It is important to realize that <filename>KMACHINE</filename> is
-        just for kernel mapping, while <filename>MACHINE</filename>
-        is the machine type within a BSP Layer.
-        Even with this distinction, however, these two variables can hold
-        the same value.
-        See the <link linkend='bsp-descriptions'>BSP Descriptions</link>
-        section for more information.
-    </para>
-
-    <para>
-        Every linux-yocto style recipe must also indicate the Linux kernel
-        source repository branch used to build the Linux kernel.
-        The <ulink url='&YOCTO_DOCS_REF_URL;#var-KBRANCH'><filename>KBRANCH</filename></ulink>
-        variable must be set to indicate the branch.
-        <note>
-            You can use the <filename>KBRANCH</filename> value to define an
-            alternate branch typically with a machine override as shown here
-            from the <filename>meta-yocto-bsp</filename> layer:
-            <literallayout class='monospaced'>
-     KBRANCH_edgerouter = "standard/edgerouter"
-            </literallayout>
-        </note>
-    </para>
-
-    <para>
-        The linux-yocto style recipes can optionally define the following
-        variables:
-        <literallayout class='monospaced'>
-     KERNEL_FEATURES
-     LINUX_KERNEL_TYPE
-        </literallayout>
-    </para>
-
-    <para>
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-LINUX_KERNEL_TYPE'><filename>LINUX_KERNEL_TYPE</filename></ulink>
-        defines the kernel type to be
-        used in assembling the configuration.
-        If you do not specify a <filename>LINUX_KERNEL_TYPE</filename>,
-        it defaults to "standard".
-        Together with <filename>KMACHINE</filename>,
-        <filename>LINUX_KERNEL_TYPE</filename> defines the search
-        arguments used by the kernel tools to find the
-        appropriate description within the kernel Metadata with which to
-        build out the sources and configuration.
-        The linux-yocto recipes define "standard", "tiny", and "preempt-rt"
-        kernel types.
-        See the "<link linkend='kernel-types'>Kernel Types</link>" section
-        for more information on kernel types.
-    </para>
-
-    <para>
-        During the build, the kern-tools search for the BSP description
-        file that most closely matches the <filename>KMACHINE</filename>
-        and <filename>LINUX_KERNEL_TYPE</filename> variables passed in from the
-        recipe.
-        The tools use the first BSP description it finds that match
-        both variables.
-        If the tools cannot find a match, they issue a warning.
-    </para>
-
-    <para>
-        The tools first search for the <filename>KMACHINE</filename> and
-        then for the <filename>LINUX_KERNEL_TYPE</filename>.
-        If the tools cannot find a partial match, they will use the
-        sources from the <filename>KBRANCH</filename> and any configuration
-        specified in the
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>.
-    </para>
-
-    <para>
-        You can use the
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-KERNEL_FEATURES'><filename>KERNEL_FEATURES</filename></ulink>
-        variable
-        to include features (configuration fragments, patches, or both) that
-        are not already included by the <filename>KMACHINE</filename> and
-        <filename>LINUX_KERNEL_TYPE</filename> variable combination.
-        For example, to include a feature specified as
-        "features/netfilter/netfilter.scc",
-        specify:
-        <literallayout class='monospaced'>
-     KERNEL_FEATURES += "features/netfilter/netfilter.scc"
-        </literallayout>
-        To include a feature called "cfg/sound.scc" just for the
-        <filename>qemux86</filename> machine, specify:
-        <literallayout class='monospaced'>
-     KERNEL_FEATURES_append_qemux86 = " cfg/sound.scc"
-        </literallayout>
-        The value of the entries in <filename>KERNEL_FEATURES</filename>
-        are dependent on their location within the kernel Metadata itself.
-        The examples here are taken from the
-        <filename>yocto-kernel-cache</filename> repository.
-        Each branch of this repository contains "features" and "cfg"
-        subdirectories at the top-level.
-        For more information, see the
-        "<link linkend='kernel-metadata-syntax'>Kernel Metadata Syntax</link>"
-        section.
-    </para>
-</section>
-
-<section id='kernel-metadata-syntax'>
-    <title>Kernel Metadata Syntax</title>
-
-    <para>
-        The kernel Metadata consists of three primary types of files:
-        <filename>scc</filename>
-        <footnote>
-            <para>
-                <filename>scc</filename> stands for Series Configuration
-                Control, but the naming has less significance in the
-                current implementation of the tooling than it had in the
-                past.
-                Consider <filename>scc</filename> files to be description files.
-            </para>
-        </footnote>
-        description files, configuration fragments, and patches.
-        The <filename>scc</filename> files define variables and include or
-        otherwise reference any of the three file types.
-        The description files are used to aggregate all types of kernel
-        Metadata into
-        what ultimately describes the sources and the configuration required
-        to build a Linux kernel tailored to a specific machine.
-    </para>
-
-    <para>
-        The <filename>scc</filename> description files are used to define two
-        fundamental types of kernel Metadata:
-        <itemizedlist>
-            <listitem><para>Features</para></listitem>
-            <listitem><para>Board Support Packages (BSPs)</para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        Features aggregate sources in the form of patches and configuration
-        fragments into a modular reusable unit.
-        You can use features to implement conceptually separate kernel
-        Metadata descriptions such as pure configuration fragments,
-        simple patches, complex features, and kernel types.
-        <link linkend='kernel-types'>Kernel types</link> define general
-        kernel features and policy to be reused in the BSPs.
-    </para>
-
-    <para>
-        BSPs define hardware-specific features and aggregate them with kernel
-        types to form the final description of what will be assembled and built.
-    </para>
-
-    <para>
-        While the kernel Metadata syntax does not enforce any logical
-        separation of configuration fragments, patches, features or kernel
-        types, best practices dictate a logical separation of these types
-        of Metadata.
-        The following Metadata file hierarchy is recommended:
-        <literallayout class='monospaced'>
-     <replaceable>base</replaceable>/
-        bsp/
-        cfg/
-        features/
-        ktypes/
-        patches/
-        </literallayout>
-    </para>
-
-    <para>
-        The <filename>bsp</filename> directory contains the
-        <link linkend='bsp-descriptions'>BSP descriptions</link>.
-        The remaining directories all contain "features".
-        Separating <filename>bsp</filename> from the rest of the structure
-        aids conceptualizing intended usage.
-    </para>
-
-    <para>
-        Use these guidelines to help place your <filename>scc</filename>
-        description files within the structure:
-        <itemizedlist>
-            <listitem><para>If your file contains
-                only configuration fragments, place the file in the
-                <filename>cfg</filename> directory.</para></listitem>
-            <listitem><para>If your file contains
-                only source-code fixes, place the file in the
-                <filename>patches</filename> directory.</para></listitem>
-            <listitem><para>If your file encapsulates
-                a major feature, often combining sources and configurations,
-                place the file in <filename>features</filename> directory.
-                </para></listitem>
-            <listitem><para>If your file aggregates
-                non-hardware configuration and patches in order to define a
-                base kernel policy or major kernel type to be reused across
-                multiple BSPs, place the file in <filename>ktypes</filename>
-                directory.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        These distinctions can easily become blurred - especially as
-        out-of-tree features slowly merge upstream over time.
-        Also, remember that how the description files are placed is
-        a purely logical organization and has no impact on the functionality
-        of the kernel Metadata.
-        There is no impact because all of <filename>cfg</filename>,
-        <filename>features</filename>, <filename>patches</filename>, and
-        <filename>ktypes</filename>, contain "features" as far as the kernel
-        tools are concerned.
-    </para>
-
-    <para>
-        Paths used in kernel Metadata files are relative to
-        <replaceable>base</replaceable>, which is either
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></ulink>
-        if you are creating Metadata in
-        <link linkend='recipe-space-metadata'>recipe-space</link>,
-        or the top level of
-        <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/yocto-kernel-cache/tree/'><filename>yocto-kernel-cache</filename></ulink>
-        if you are creating
-        <link linkend='metadata-outside-the-recipe-space'>Metadata outside of the recipe-space</link>.
-    </para>
-
-    <section id='configuration'>
-        <title>Configuration</title>
-
-        <para>
-            The simplest unit of kernel Metadata is the configuration-only
-            feature.
-            This feature consists of one or more Linux kernel configuration
-            parameters in a configuration fragment file
-            (<filename>.cfg</filename>) and a <filename>.scc</filename> file
-            that describes the fragment.
-        </para>
-
-        <para>
-            As an example, consider the Symmetric Multi-Processing (SMP)
-            fragment used with the <filename>linux-yocto-4.12</filename>
-            kernel as defined outside of the recipe space (i.e.
-            <filename>yocto-kernel-cache</filename>).
-            This Metadata consists of two files: <filename>smp.scc</filename>
-            and <filename>smp.cfg</filename>.
-            You can find these files in the <filename>cfg</filename> directory
-            of the <filename>yocto-4.12</filename> branch in the
-            <filename>yocto-kernel-cache</filename> Git repository:
-            <literallayout class='monospaced'>
-     cfg/smp.scc:
-        define KFEATURE_DESCRIPTION "Enable SMP for 32 bit builds"
-        define KFEATURE_COMPATIBILITY all
-
-        kconf hardware smp.cfg
-
-     cfg/smp.cfg:
-        CONFIG_SMP=y
-        CONFIG_SCHED_SMT=y
-        # Increase default NR_CPUS from 8 to 64 so that platform with
-        # more than 8 processors can be all activated at boot time
-        CONFIG_NR_CPUS=64
-        # The following is needed when setting NR_CPUS to something
-        # greater than 8 on x86 architectures, it should be automatically
-        # disregarded by Kconfig when using a different arch
-        CONFIG_X86_BIGSMP=y
-            </literallayout>
-            You can find general information on configuration fragment files in
-            the
-            "<link linkend='creating-config-fragments'>Creating Configuration Fragments</link>"
-            section.
-        </para>
-
-        <para>
-            Within the <filename>smp.scc</filename> file, the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-KFEATURE_DESCRIPTION'><filename>KFEATURE_DESCRIPTION</filename></ulink>
-            statement provides a short description of the fragment.
-            Higher level kernel tools use this description.
-        </para>
-
-        <para>
-            Also within the <filename>smp.scc</filename> file, the
-            <filename>kconf</filename> command includes the
-            actual configuration fragment in an <filename>.scc</filename>
-            file, and the "hardware" keyword identifies the fragment as
-            being hardware enabling, as opposed to general policy,
-            which would use the "non-hardware" keyword.
-            The distinction is made for the benefit of the configuration
-            validation tools, which warn you if a hardware fragment
-            overrides a policy set by a non-hardware fragment.
-            <note>
-                The description file can include multiple
-                <filename>kconf</filename> statements, one per fragment.
-            </note>
-        </para>
-
-        <para>
-            As described in the
-            "<link linkend='validating-configuration'>Validating Configuration</link>"
-            section, you can use the following BitBake command to audit your
-            configuration:
-            <literallayout class='monospaced'>
-     $ bitbake linux-yocto -c kernel_configcheck -f
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='patches'>
-        <title>Patches</title>
-
-        <para>
-            Patch descriptions are very similar to configuration fragment
-            descriptions, which are described in the previous section.
-            However, instead of a <filename>.cfg</filename> file, these
-            descriptions work with source patches (i.e.
-            <filename>.patch</filename> files).
-        </para>
-
-        <para>
-            A typical patch includes a description file and the patch itself.
-            As an example, consider the build patches used with the
-            <filename>linux-yocto-4.12</filename> kernel as defined outside of
-            the recipe space (i.e. <filename>yocto-kernel-cache</filename>).
-            This Metadata consists of several files:
-            <filename>build.scc</filename> and a set of
-            <filename>*.patch</filename> files.
-            You can find these files in the <filename>patches/build</filename>
-            directory of the <filename>yocto-4.12</filename> branch in the
-            <filename>yocto-kernel-cache</filename> Git repository.
-        </para>
-
-        <para>
-            The following listings show the <filename>build.scc</filename>
-            file and part of the
-            <filename>modpost-mask-trivial-warnings.patch</filename> file:
-            <literallayout class='monospaced'>
-     patches/build/build.scc:
-        patch arm-serialize-build-targets.patch
-        patch powerpc-serialize-image-targets.patch
-        patch kbuild-exclude-meta-directory-from-distclean-processi.patch
-
-        # applied by kgit
-        # patch kbuild-add-meta-files-to-the-ignore-li.patch
-
-        patch modpost-mask-trivial-warnings.patch
-        patch menuconfig-check-lxdiaglog.sh-Allow-specification-of.patch
-
-     patches/build/modpost-mask-trivial-warnings.patch:
-        From bd48931bc142bdd104668f3a062a1f22600aae61 Mon Sep 17 00:00:00 2001
-        From: Paul Gortmaker &lt;paul.gortmaker@windriver.com&gt;
-        Date: Sun, 25 Jan 2009 17:58:09 -0500
-        Subject: [PATCH] modpost: mask trivial warnings
-
-        Newer HOSTCC will complain about various stdio fcns because
-                          .
-                          .
-                          .
- 	        char *dump_write = NULL, *files_source = NULL;
- 	        int opt;
-        --
-        2.10.1
-
-        generated by cgit v0.10.2 at 2017-09-28 15:23:23 (GMT)
-            </literallayout>
-            The description file can include multiple patch statements where
-            each statement handles a single patch.
-            In the example <filename>build.scc</filename> file, five patch
-            statements exist for the five patches in the directory.
-        </para>
-
-        <para>
-            You can create a typical <filename>.patch</filename> file using
-            <filename>diff -Nurp</filename> or
-            <filename>git format-patch</filename> commands.
-            For information on how to create patches, see the
-            "<link linkend='using-devtool-to-patch-the-kernel'>Using <filename>devtool</filename> to Patch the Kernel</link>"
-            and
-            "<link linkend='using-traditional-kernel-development-to-patch-the-kernel'>Using Traditional Kernel Development to Patch the Kernel</link>"
-            sections.
-        </para>
-    </section>
-
-    <section id='features'>
-        <title>Features</title>
-
-        <para>
-            Features are complex kernel Metadata types that consist
-            of configuration fragments, patches, and possibly other feature
-            description files.
-            As an example, consider the following generic listing:
-            <literallayout class='monospaced'>
-     features/<replaceable>myfeature</replaceable>.scc
-        define KFEATURE_DESCRIPTION "Enable <replaceable>myfeature</replaceable>"
-
-        patch 0001-<replaceable>myfeature</replaceable>-core.patch
-        patch 0002-<replaceable>myfeature</replaceable>-interface.patch
-
-        include cfg/<replaceable>myfeature</replaceable>_dependency.scc
-        kconf non-hardware <replaceable>myfeature</replaceable>.cfg
-            </literallayout>
-            This example shows how the <filename>patch</filename> and
-            <filename>kconf</filename> commands are used as well as
-            how an additional feature description file is included with
-            the <filename>include</filename> command.
-        </para>
-
-        <para>
-            Typically, features are less granular than configuration
-            fragments and are more likely than configuration fragments
-            and patches to be the types of things you want to specify
-            in the <filename>KERNEL_FEATURES</filename> variable of the
-            Linux kernel recipe.
-            See the "<link linkend='using-kernel-metadata-in-a-recipe'>Using Kernel Metadata in a Recipe</link>"
-            section earlier in the manual.
-        </para>
-    </section>
-
-    <section id='kernel-types'>
-        <title>Kernel Types</title>
-
-        <para>
-            A kernel type defines a high-level kernel policy by
-            aggregating non-hardware configuration fragments with
-            patches you want to use when building a Linux kernel of a
-            specific type (e.g. a real-time kernel).
-            Syntactically, kernel types are no different than features
-            as described in the "<link linkend='features'>Features</link>"
-            section.
-            The
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-LINUX_KERNEL_TYPE'><filename>LINUX_KERNEL_TYPE</filename></ulink>
-            variable in the kernel recipe selects the kernel type.
-            For example, in the <filename>linux-yocto_4.12.bb</filename>
-            kernel recipe found in
-            <filename>poky/meta/recipes-kernel/linux</filename>, a
-            <ulink url='&YOCTO_DOCS_BB_URL;#require-inclusion'><filename>require</filename></ulink>
-            directive includes the
-            <filename>poky/meta/recipes-kernel/linux/linux-yocto.inc</filename>
-            file, which has the following statement that defines the default
-            kernel type:
-            <literallayout class='monospaced'>
-     LINUX_KERNEL_TYPE ??= "standard"
-            </literallayout>
-        </para>
-
-        <para>
-            Another example would be the real-time kernel (i.e.
-            <filename>linux-yocto-rt_4.12.bb</filename>).
-            This kernel recipe directly sets the kernel type as follows:
-            <literallayout class='monospaced'>
-     LINUX_KERNEL_TYPE = "preempt-rt"
-            </literallayout>
-            <note>
-                You can find kernel recipes in the
-                <filename>meta/recipes-kernel/linux</filename> directory of the
-                <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                (e.g. <filename>poky/meta/recipes-kernel/linux/linux-yocto_4.12.bb</filename>).
-                See the "<link linkend='using-kernel-metadata-in-a-recipe'>Using Kernel Metadata in a Recipe</link>"
-                section for more information.
-            </note>
-        </para>
-
-        <para>
-            Three kernel types ("standard", "tiny", and "preempt-rt") are
-            supported for Linux Yocto kernels:
-            <itemizedlist>
-                <listitem><para>"standard":
-                    Includes the generic Linux kernel policy of the Yocto
-                    Project linux-yocto kernel recipes.
-                    This policy includes, among other things, which file
-                    systems, networking options, core kernel features, and
-                    debugging and tracing options are supported.
-                    </para></listitem>
-                <listitem><para>"preempt-rt":
-                    Applies the <filename>PREEMPT_RT</filename>
-                    patches and the configuration options required to
-                    build a real-time Linux kernel.
-                    This kernel type inherits from the "standard" kernel type.
-                    </para></listitem>
-                <listitem><para>"tiny":
-                    Defines a bare minimum configuration meant to serve as a
-                    base for very small Linux kernels.
-                    The "tiny" kernel type is independent from the "standard"
-                    configuration.
-                    Although the "tiny" kernel type does not currently include
-                    any source changes, it might in the future.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            For any given kernel type, the Metadata is defined by the
-            <filename>.scc</filename> (e.g. <filename>standard.scc</filename>).
-            Here is a partial listing for the <filename>standard.scc</filename>
-            file, which is found in the <filename>ktypes/standard</filename>
-            directory of the <filename>yocto-kernel-cache</filename> Git
-            repository:
-            <literallayout class='monospaced'>
-     # Include this kernel type fragment to get the standard features and
-     # configuration values.
-
-     # Note: if only the features are desired, but not the configuration
-     #       then this should be included as:
-     #             include ktypes/standard/standard.scc nocfg
-     #       if no chained configuration is desired, include it as:
-     #             include ktypes/standard/standard.scc nocfg inherit
-
-
-
-     include ktypes/base/base.scc
-     branch standard
-
-     kconf non-hardware standard.cfg
-
-     include features/kgdb/kgdb.scc
-                .
-                .
-                .
-
-     include cfg/net/ip6_nf.scc
-     include cfg/net/bridge.scc
-
-     include cfg/systemd.scc
-
-     include features/rfkill/rfkill.scc
-            </literallayout>
-        </para>
-
-        <para>
-            As with any <filename>.scc</filename> file, a
-            kernel type definition can aggregate other
-            <filename>.scc</filename> files with
-            <filename>include</filename> commands.
-            These definitions can also directly pull in
-            configuration fragments and patches with the
-            <filename>kconf</filename> and <filename>patch</filename>
-            commands, respectively.
-        </para>
-
-        <note>
-            It is not strictly necessary to create a kernel type
-            <filename>.scc</filename> file.
-            The Board Support Package (BSP) file can implicitly define
-            the kernel type using a <filename>define
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-KTYPE'>KTYPE</ulink> myktype</filename>
-            line.
-            See the "<link linkend='bsp-descriptions'>BSP Descriptions</link>"
-            section for more information.
-        </note>
-    </section>
-
-    <section id='bsp-descriptions'>
-        <title>BSP Descriptions</title>
-
-        <para>
-            BSP descriptions (i.e. <filename>*.scc</filename> files)
-            combine kernel types with hardware-specific features.
-            The hardware-specific Metadata is typically defined
-            independently in the BSP layer, and then aggregated with each
-            supported kernel type.
-            <note>
-                For BSPs supported by the Yocto Project, the BSP description
-                files are located in the <filename>bsp</filename> directory
-                of the
-                <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/yocto-kernel-cache/tree/bsp'><filename>yocto-kernel-cache</filename></ulink>
-                repository organized under the "Yocto Linux Kernel" heading
-                in the
-                <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi'>Yocto Project Source Repositories</ulink>.
-            </note>
-        </para>
-
-        <para>
-            This section overviews the BSP description structure, the
-            aggregation concepts, and presents a detailed example using
-            a BSP supported by the Yocto Project (i.e. BeagleBone Board).
-            For complete information on BSP layer file hierarchy, see the
-            <ulink url='&YOCTO_DOCS_BSP_URL;'>Yocto Project Board Support Package (BSP) Developer's Guide</ulink>.
-        </para>
-
-        <section id='bsp-description-file-overview'>
-            <title>Overview</title>
-
-            <para>
-                For simplicity, consider the following root BSP layer
-                description files for the BeagleBone board.
-                These files employ both a structure and naming convention
-                for consistency.
-                The naming convention for the file is as follows:
-                <literallayout class='monospaced'>
-     <replaceable>bsp_root_name</replaceable>-<replaceable>kernel_type</replaceable>.scc
-                </literallayout>
-                Here are some example root layer BSP filenames for the
-                BeagleBone Board BSP, which is supported by the Yocto Project:
-                <literallayout class='monospaced'>
-     beaglebone-standard.scc
-     beaglebone-preempt-rt.scc
-                </literallayout>
-                Each file uses the root name (i.e "beaglebone") BSP name
-                followed by the kernel type.
-            </para>
-
-            <para>
-                Examine the <filename>beaglebone-standard.scc</filename>
-                file:
-                <literallayout class='monospaced'>
-     define KMACHINE beaglebone
-     define KTYPE standard
-     define KARCH arm
-
-     include ktypes/standard/standard.scc
-     branch beaglebone
-
-     include beaglebone.scc
-
-     # default policy for standard kernels
-     include features/latencytop/latencytop.scc
-     include features/profiling/profiling.scc
-                </literallayout>
-                Every top-level BSP description file should define the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KMACHINE'><filename>KMACHINE</filename></ulink>,
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KTYPE'><filename>KTYPE</filename></ulink>,
-                and <ulink url='&YOCTO_DOCS_REF_URL;#var-KARCH'><filename>KARCH</filename></ulink>
-                variables.
-                These variables allow the OpenEmbedded build system to identify
-                the description as meeting the criteria set by the recipe being
-                built.
-                This example supports the "beaglebone" machine for the
-                "standard" kernel and the "arm" architecture.
-            </para>
-
-            <para>
-                Be aware that a hard link between the
-                <filename>KTYPE</filename> variable and a kernel type
-                description file does not exist.
-                Thus, if you do not have the kernel type defined in your kernel
-                Metadata as it is here, you only need to ensure that the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-LINUX_KERNEL_TYPE'><filename>LINUX_KERNEL_TYPE</filename></ulink>
-                variable in the kernel recipe and the
-                <filename>KTYPE</filename> variable in the BSP description
-                file match.
-            </para>
-
-            <para>
-                To separate your kernel policy from your hardware configuration,
-                you include a kernel type (<filename>ktype</filename>), such as
-                "standard".
-                In the previous example, this is done using the following:
-                <literallayout class='monospaced'>
-     include ktypes/standard/standard.scc
-                </literallayout>
-                This file aggregates all the configuration fragments, patches,
-                and features that make up your standard kernel policy.
-                See the "<link linkend='kernel-types'>Kernel Types</link>"
-                section for more information.
-            </para>
-
-            <para>
-                To aggregate common configurations and features specific to the
-                kernel for <replaceable>mybsp</replaceable>, use the following:
-                <literallayout class='monospaced'>
-     include <replaceable>mybsp</replaceable>.scc
-                </literallayout>
-                You can see that in the BeagleBone example with the following:
-                <literallayout class='monospaced'>
-     include beaglebone.scc
-                </literallayout>
-                For information on how to break a complete
-                <filename>.config</filename> file into the various
-                configuration fragments, see the
-                "<link linkend='creating-config-fragments'>Creating Configuration Fragments</link>"
-                section.
-            </para>
-
-            <para>
-                Finally, if you have any configurations specific to the
-                hardware that are not in a <filename>*.scc</filename> file,
-                you can include them as follows:
-                <literallayout class='monospaced'>
-     kconf hardware <replaceable>mybsp</replaceable>-<replaceable>extra</replaceable>.cfg
-                </literallayout>
-                The BeagleBone example does not include these types of
-                configurations.
-                However, the Malta 32-bit board does ("mti-malta32").
-                Here is the <filename>mti-malta32-le-standard.scc</filename>
-                file:
-                <literallayout class='monospaced'>
-     define KMACHINE mti-malta32-le
-     define KMACHINE qemumipsel
-     define KTYPE standard
-     define KARCH mips
-
-     include ktypes/standard/standard.scc
-     branch mti-malta32
-
-     include mti-malta32.scc
-     kconf hardware mti-malta32-le.cfg
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='bsp-description-file-example-minnow'>
-            <title>Example</title>
-
-            <para>
-                Many real-world examples are more complex.
-                Like any other <filename>.scc</filename> file, BSP
-                descriptions can aggregate features.
-                Consider the Minnow BSP definition given the
-                <filename>linux-yocto-4.4</filename> branch of the
-                <filename>yocto-kernel-cache</filename> (i.e.
-                <filename>yocto-kernel-cache/bsp/minnow/minnow.scc</filename>):
-                <note>
-                    Although the Minnow Board BSP is unused, the Metadata
-                    remains and is being used here just as an example.
-                </note>
-                <literallayout class='monospaced'>
-         include cfg/x86.scc
-         include features/eg20t/eg20t.scc
-         include cfg/dmaengine.scc
-         include features/power/intel.scc
-         include cfg/efi.scc
-         include features/usb/ehci-hcd.scc
-         include features/usb/ohci-hcd.scc
-         include features/usb/usb-gadgets.scc
-         include features/usb/touchscreen-composite.scc
-         include cfg/timer/hpet.scc
-         include features/leds/leds.scc
-         include features/spi/spidev.scc
-         include features/i2c/i2cdev.scc
-         include features/mei/mei-txe.scc
-
-         # Earlyprintk and port debug requires 8250
-         kconf hardware cfg/8250.cfg
-
-         kconf hardware minnow.cfg
-         kconf hardware minnow-dev.cfg
-                </literallayout>
-            </para>
-
-            <para>
-                The <filename>minnow.scc</filename> description file includes
-                a hardware configuration fragment
-                (<filename>minnow.cfg</filename>) specific to the Minnow
-                BSP as well as several more general configuration
-                fragments and features enabling hardware found on the
-                machine.
-                This <filename>minnow.scc</filename> description file is then
-                included in each of the three
-                "minnow" description files for the supported kernel types
-                (i.e. "standard", "preempt-rt", and "tiny").
-                Consider the "minnow" description for the "standard" kernel
-                type (i.e. <filename>minnow-standard.scc</filename>:
-                <literallayout class='monospaced'>
-         define KMACHINE minnow
-         define KTYPE standard
-         define KARCH i386
-
-         include ktypes/standard
-
-         include minnow.scc
-
-         # Extra minnow configs above the minimal defined in minnow.scc
-         include cfg/efi-ext.scc
-         include features/media/media-all.scc
-         include features/sound/snd_hda_intel.scc
-
-         # The following should really be in standard.scc
-         # USB live-image support
-         include cfg/usb-mass-storage.scc
-         include cfg/boot-live.scc
-
-         # Basic profiling
-         include features/latencytop/latencytop.scc
-         include features/profiling/profiling.scc
-
-         # Requested drivers that don't have an existing scc
-         kconf hardware minnow-drivers-extra.cfg
-                </literallayout>
-                The <filename>include</filename> command midway through the file
-                includes the <filename>minnow.scc</filename> description that
-                defines all enabled hardware for the BSP that is common to
-                all kernel types.
-                Using this command significantly reduces duplication.
-            </para>
-
-            <para>
-                Now consider the "minnow" description for the "tiny" kernel
-                type (i.e. <filename>minnow-tiny.scc</filename>):
-                <literallayout class='monospaced'>
-        define KMACHINE minnow
-        define KTYPE tiny
-        define KARCH i386
-
-        include ktypes/tiny
-
-        include minnow.scc
-                </literallayout>
-                As you might expect, the "tiny" description includes quite a
-                bit less.
-                In fact, it includes only the minimal policy defined by the
-                "tiny" kernel type and the hardware-specific configuration
-                required for booting the machine along with the most basic
-                functionality of the system as defined in the base "minnow"
-                description file.
-            </para>
-
-            <para>
-                Notice again the three critical variables:
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KMACHINE'><filename>KMACHINE</filename></ulink>,
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KTYPE'><filename>KTYPE</filename></ulink>,
-                and
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KARCH'><filename>KARCH</filename></ulink>.
-                Of these variables, only <filename>KTYPE</filename>
-                has changed to specify the "tiny" kernel type.
-            </para>
-        </section>
-    </section>
-</section>
-
-<section id='kernel-metadata-location'>
-    <title>Kernel Metadata Location</title>
-
-    <para>
-        Kernel Metadata always exists outside of the kernel tree either
-        defined in a kernel recipe (recipe-space) or outside of the recipe.
-        Where you choose to define the Metadata depends on what you want
-        to do and how you intend to work.
-        Regardless of where you define the kernel Metadata, the syntax used
-        applies equally.
-    </para>
-
-    <para>
-        If you are unfamiliar with the Linux kernel and only wish
-        to apply a configuration and possibly a couple of patches provided to
-        you by others, the recipe-space method is recommended.
-        This method is also a good approach if you are working with Linux kernel
-        sources you do not control or if you just do not want to maintain a
-        Linux kernel Git repository on your own.
-        For partial information on how you can define kernel Metadata in
-        the recipe-space, see the
-        "<link linkend='modifying-an-existing-recipe'>Modifying an Existing Recipe</link>"
-        section.
-    </para>
-
-    <para>
-        Conversely, if you are actively developing a kernel and are already
-        maintaining a Linux kernel Git repository of your own, you might find
-        it more convenient to work with kernel Metadata kept outside the
-        recipe-space.
-        Working with Metadata in this area can make iterative development of
-        the Linux kernel more efficient outside of the BitBake environment.
-    </para>
-
-    <section id='recipe-space-metadata'>
-        <title>Recipe-Space Metadata</title>
-
-        <para>
-            When stored in recipe-space, the kernel Metadata files reside in a
-            directory hierarchy below
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></ulink>.
-            For a linux-yocto recipe or for a Linux kernel recipe derived
-            by copying and modifying
-            <filename>oe-core/meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb</filename>
-            to a recipe in your layer, <filename>FILESEXTRAPATHS</filename>
-            is typically set to
-            <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-THISDIR'><filename>THISDIR</filename></ulink><filename>}/${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink><filename>}</filename>.
-            See the "<link linkend='modifying-an-existing-recipe'>Modifying an Existing Recipe</link>"
-            section for more information.
-        </para>
-
-        <para>
-            Here is an example that shows a trivial tree of kernel Metadata
-            stored in recipe-space within a BSP layer:
-            <literallayout class='monospaced'>
-     meta-<replaceable>my_bsp_layer</replaceable>/
-     `-- recipes-kernel
-         `-- linux
-             `-- linux-yocto
-                 |-- bsp-standard.scc
-                 |-- bsp.cfg
-                 `-- standard.cfg
-            </literallayout>
-        </para>
-
-        <para>
-            When the Metadata is stored in recipe-space, you must take
-            steps to ensure BitBake has the necessary information to decide
-            what files to fetch and when they need to be fetched again.
-            It is only necessary to specify the <filename>.scc</filename>
-            files on the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>.
-            BitBake parses them and fetches any files referenced in the
-            <filename>.scc</filename> files by the <filename>include</filename>,
-            <filename>patch</filename>, or <filename>kconf</filename> commands.
-            Because of this, it is necessary to bump the recipe
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-PR'><filename>PR</filename></ulink>
-            value when changing the content of files not explicitly listed
-            in the <filename>SRC_URI</filename>.
-        </para>
-
-        <para>
-            If the BSP description is in recipe space, you cannot simply list
-            the <filename>*.scc</filename> in the <filename>SRC_URI</filename>
-            statement.
-            You need to use the following form from your kernel append file:
-            <literallayout class='monospaced'>
-     SRC_URI_append_<replaceable>myplatform</replaceable> = " \
-        file://<replaceable>myplatform</replaceable>;type=kmeta;destsuffix=<replaceable>myplatform</replaceable> \
-        "
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='metadata-outside-the-recipe-space'>
-        <title>Metadata Outside the Recipe-Space</title>
-
-        <para>
-            When stored outside of the recipe-space, the kernel Metadata
-            files reside in a separate repository.
-            The OpenEmbedded build system adds the Metadata to the build as
-            a "type=kmeta" repository through the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-            variable.
-            As an example, consider the following <filename>SRC_URI</filename>
-            statement from the <filename>linux-yocto_4.12.bb</filename>
-            kernel recipe:
-            <literallayout class='monospaced'>
-     SRC_URI = "git://git.yoctoproject.org/linux-yocto-4.12.git;name=machine;branch=${KBRANCH}; \
-                git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-4.12;destsuffix=${KMETA}"
-            </literallayout>
-            <filename>${KMETA}</filename>, in this context, is simply used to
-            name the directory into which the Git fetcher places the Metadata.
-            This behavior is no different than any multi-repository
-            <filename>SRC_URI</filename> statement used in a recipe (e.g.
-            see the previous section).
-        </para>
-
-        <para>
-            You can keep kernel Metadata in a "kernel-cache", which is a
-            directory containing configuration fragments.
-            As with any Metadata kept outside the recipe-space, you simply
-            need to use the <filename>SRC_URI</filename> statement with the
-            "type=kmeta" attribute.
-            Doing so makes the kernel Metadata available during the
-            configuration phase.
-        </para>
-
-        <para>
-            If you modify the Metadata, you must not forget to update the
-            <filename>SRCREV</filename> statements in the kernel's recipe.
-            In particular, you need to update the
-            <filename>SRCREV_meta</filename> variable to match the commit in
-            the <filename>KMETA</filename> branch you wish to use.
-            Changing the data in these branches and not updating the
-            <filename>SRCREV</filename> statements to match will cause the
-            build to fetch an older commit.
-        </para>
-    </section>
-</section>
-
-<section id='organizing-your-source'>
-    <title>Organizing Your Source</title>
-
-    <para>
-        Many recipes based on the <filename>linux-yocto-custom.bb</filename>
-        recipe use Linux kernel sources that have only a single
-        branch - "master".
-        This type of repository structure is fine for linear development
-        supporting a single machine and architecture.
-        However, if you work with multiple boards and architectures,
-        a kernel source repository with multiple branches is more
-        efficient.
-        For example, suppose you need a series of patches for one board to boot.
-        Sometimes, these patches are works-in-progress or fundamentally wrong,
-        yet they are still necessary for specific boards.
-        In these situations, you most likely do not want to include these
-        patches in every kernel you build (i.e. have the patches as part of
-        the lone "master" branch).
-        It is situations like these that give rise to multiple branches used
-        within a Linux kernel sources Git repository.
-    </para>
-
-    <para>
-        Repository organization strategies exist that maximize source reuse,
-        remove redundancy, and logically order your changes.
-        This section presents strategies for the following cases:
-        <itemizedlist>
-            <listitem><para>Encapsulating patches in a feature description
-                and only including the patches in the BSP descriptions of
-                the applicable boards.</para></listitem>
-            <listitem><para>Creating a machine branch in your
-                kernel source repository and applying the patches on that
-                branch only.</para></listitem>
-            <listitem><para>Creating a feature branch in your
-                kernel source repository and merging that branch into your
-                BSP when needed.</para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        The approach you take is entirely up to you
-        and depends on what works best for your development model.
-    </para>
-
-    <section id='encapsulating-patches'>
-        <title>Encapsulating Patches</title>
-
-        <para>
-            if you are reusing patches from an external tree and are not
-            working on the patches, you might find the encapsulated feature
-            to be appropriate.
-            Given this scenario, you do not need to create any branches in the
-            source repository.
-            Rather, you just take the static patches you need and encapsulate
-            them within a feature description.
-            Once you have the feature description, you simply include that into
-            the BSP description as described in the
-            "<link linkend='bsp-descriptions'>BSP Descriptions</link>"
-            section.
-        </para>
-
-        <para>
-            You can find information on how to create patches and BSP
-            descriptions in the "<link linkend='patches'>Patches</link>" and
-            "<link linkend='bsp-descriptions'>BSP Descriptions</link>"
-            sections.
-        </para>
-    </section>
-
-    <section id='machine-branches'>
-        <title>Machine Branches</title>
-
-        <para>
-            When you have multiple machines and architectures to support,
-            or you are actively working on board support, it is more
-            efficient to create branches in the repository based on
-            individual machines.
-            Having machine branches allows common source to remain in the
-            "master" branch with any features specific to a machine stored
-            in the appropriate machine branch.
-            This organization method frees you from continually reintegrating
-            your patches into a feature.
-        </para>
-
-        <para>
-            Once you have a new branch, you can set up your kernel Metadata
-            to use the branch a couple different ways.
-            In the recipe, you can specify the new branch as the
-            <filename>KBRANCH</filename> to use for the board as
-            follows:
-            <literallayout class='monospaced'>
-     KBRANCH = "mynewbranch"
-            </literallayout>
-            Another method is to use the <filename>branch</filename> command
-            in the BSP description:
-            <literallayout class='monospaced'>
-     mybsp.scc:
-        define KMACHINE mybsp
-        define KTYPE standard
-        define KARCH i386
-        include standard.scc
-
-        branch mynewbranch
-
-        include mybsp-hw.scc
-            </literallayout>
-        </para>
-
-        <para>
-            If you find yourself with numerous branches, you might consider
-            using a hierarchical branching system similar to what the
-            Yocto Linux Kernel Git repositories use:
-            <literallayout class='monospaced'>
-     <replaceable>common</replaceable>/<replaceable>kernel_type</replaceable>/<replaceable>machine</replaceable>
-            </literallayout>
-        </para>
-
-        <para>
-            If you had two kernel types, "standard" and "small" for
-            instance, three machines, and <replaceable>common</replaceable>
-            as <filename>mydir</filename>, the branches in your
-            Git repository might look like this:
-            <literallayout class='monospaced'>
-     mydir/base
-     mydir/standard/base
-     mydir/standard/machine_a
-     mydir/standard/machine_b
-     mydir/standard/machine_c
-     mydir/small/base
-     mydir/small/machine_a
-            </literallayout>
-        </para>
-
-        <para>
-            This organization can help clarify the branch relationships.
-            In this case, <filename>mydir/standard/machine_a</filename>
-            includes everything in <filename>mydir/base</filename> and
-            <filename>mydir/standard/base</filename>.
-            The "standard" and "small" branches add sources specific to those
-            kernel types that for whatever reason are not appropriate for the
-            other branches.
-            <note>
-                The "base" branches are an artifact of the way Git manages
-                its data internally on the filesystem: Git will not allow you
-                to use <filename>mydir/standard</filename> and
-                <filename>mydir/standard/machine_a</filename> because it
-                would have to create a file and a directory named "standard".
-            </note>
-        </para>
-    </section>
-
-    <section id='feature-branches'>
-        <title>Feature Branches</title>
-
-        <para>
-            When you are actively developing new features, it can be more
-            efficient to work with that feature as a branch, rather than
-            as a set of patches that have to be regularly updated.
-            The Yocto Project Linux kernel tools provide for this with
-            the <filename>git merge</filename> command.
-        </para>
-
-        <para>
-            To merge a feature branch into a BSP, insert the
-            <filename>git merge</filename> command after any
-            <filename>branch</filename> commands:
-            <literallayout class='monospaced'>
-     mybsp.scc:
-        define KMACHINE mybsp
-        define KTYPE standard
-        define KARCH i386
-        include standard.scc
-
-        branch mynewbranch
-        git merge myfeature
-
-        include mybsp-hw.scc
-            </literallayout>
-        </para>
-    </section>
-</section>
-
-<section id='scc-reference'>
-    <title>SCC Description File Reference</title>
-
-    <para>
-        This section provides a brief reference for the commands you can use
-        within an SCC description file (<filename>.scc</filename>):
-        <itemizedlist>
-            <listitem><para>
-                <filename>branch [ref]</filename>:
-                Creates a new branch relative to the current branch
-                (typically <filename>${KTYPE}</filename>) using
-                the currently checked-out branch, or "ref" if specified.
-                </para></listitem>
-            <listitem><para>
-                <filename>define</filename>:
-                Defines variables, such as
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KMACHINE'><filename>KMACHINE</filename></ulink>,
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KTYPE'><filename>KTYPE</filename></ulink>,
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KARCH'><filename>KARCH</filename></ulink>,
-                and
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KFEATURE_DESCRIPTION'><filename>KFEATURE_DESCRIPTION</filename></ulink>.
-                </para></listitem>
-            <listitem><para>
-                <filename>include SCC_FILE</filename>:
-                Includes an SCC file in the current file.
-                The file is parsed as if you had inserted it inline.
-                </para></listitem>
-            <listitem><para>
-                <filename>kconf [hardware|non-hardware] CFG_FILE</filename>:
-                Queues a configuration fragment for merging into the final
-                Linux <filename>.config</filename> file.</para></listitem>
-            <listitem><para>
-                <filename>git merge GIT_BRANCH</filename>:
-                Merges the feature branch into the current branch.
-                </para></listitem>
-            <listitem><para>
-                <filename>patch PATCH_FILE</filename>:
-                Applies the patch to the current Git branch.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/kernel-dev/kernel-dev-common.rst b/poky/documentation/kernel-dev/kernel-dev-common.rst
index d4b60a9..64235f3 100644
--- a/poky/documentation/kernel-dev/kernel-dev-common.rst
+++ b/poky/documentation/kernel-dev/kernel-dev-common.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ************
 Common Tasks
diff --git a/poky/documentation/kernel-dev/kernel-dev-common.xml b/poky/documentation/kernel-dev/kernel-dev-common.xml
deleted file mode 100644
index 8e8a6db..0000000
--- a/poky/documentation/kernel-dev/kernel-dev-common.xml
+++ /dev/null
@@ -1,2730 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='kernel-dev-common'>
-<title>Common Tasks</title>
-
-    <para>
-        This chapter presents several common tasks you perform when you
-        work with the Yocto Project Linux kernel.
-        These tasks include preparing your host development system for
-        kernel development, preparing a layer, modifying an existing recipe,
-        patching the kernel, configuring the kernel, iterative development,
-        working with your own sources, and incorporating out-of-tree modules.
-        <note>
-            The examples presented in this chapter work with the Yocto Project
-            2.4 Release and forward.
-        </note>
-    </para>
-
-    <section id='preparing-the-build-host-to-work-on-the-kernel'>
-        <title>Preparing the Build Host to Work on the Kernel</title>
-
-        <para>
-            Before you can do any kernel development, you need to be
-            sure your build host is set up to use the Yocto Project.
-            For information on how to get set up, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-preparing-the-build-host'>Preparing the Build Host</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-            Part of preparing the system is creating a local Git
-            repository of the
-            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-            (<filename>poky</filename>) on your system.
-            Follow the steps in the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#cloning-the-poky-repository'>Cloning the <filename>poky</filename> Repository</ulink>"
-            section in the Yocto Project Development Tasks Manual to set up your
-            Source Directory.
-            <note>
-                Be sure you check out the appropriate development branch or
-                you create your local branch by checking out a specific tag
-                to get the desired version of Yocto Project.
-                See the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#checking-out-by-branch-in-poky'>Checking Out by Branch in Poky</ulink>"
-                and
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#checkout-out-by-tag-in-poky'>Checking Out by Tag in Poky</ulink>"
-                sections in the Yocto Project Development Tasks Manual for more
-                information.
-            </note>
-        </para>
-
-        <para>
-            Kernel development is best accomplished using
-            <ulink url='&YOCTO_DOCS_SDK_URL;#using-devtool-in-your-sdk-workflow'><filename>devtool</filename></ulink>
-            and not through traditional kernel workflow methods.
-            The remainder of this section provides information for both
-            scenarios.
-        </para>
-
-        <section id='getting-ready-to-develop-using-devtool'>
-            <title>Getting Ready to Develop Using <filename>devtool</filename></title>
-
-            <para>
-                Follow these steps to prepare to update the kernel image using
-                <filename>devtool</filename>.
-                Completing this procedure leaves you with a clean kernel image
-                and ready to make modifications as described in the
-                "<link linkend='using-devtool-to-patch-the-kernel'>Using <filename>devtool</filename> to Patch the Kernel</link>"
-                section:
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Initialize the BitBake Environment:</emphasis>
-                        Before building an extensible SDK, you need to
-                        initialize the BitBake build environment by sourcing the
-                        build environment script
-                        (i.e. <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>oe-init-build-env</filename></ulink>):
-                        <literallayout class='monospaced'>
-     $ cd ~/poky
-     $ source oe-init-build-env
-                        </literallayout>
-                        <note>
-                            The previous commands assume the
-                            <ulink url='&YOCTO_DOCS_OM_URL;#source-repositories'>Source Repositories</ulink>
-                            (i.e. <filename>poky</filename>) have been cloned
-                            using Git and the local repository is named
-                            "poky".
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Prepare Your <filename>local.conf</filename> File:</emphasis>
-                        By default, the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
-                        variable is set to "qemux86-64", which is fine if you are
-                        building for the QEMU emulator in 64-bit mode.
-                        However, if you are not, you need to set the
-                        <filename>MACHINE</filename> variable appropriately in
-                        your <filename>conf/local.conf</filename> file found in
-                        the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                        (i.e. <filename>~/poky/build</filename> in this
-                        example).</para>
-
-                        <para>Also, since you are preparing to work on the
-                        kernel image, you need to set the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS'><filename>MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</filename></ulink>
-                        variable to include kernel modules.</para>
-
-                        <para>In this example we wish to build for qemux86 so
-                        we must set the <filename>MACHINE</filename> variable
-                        to "qemux86" and also add the "kernel-modules". As described
-                        we do this by appending to <filename>conf/local.conf</filename>:
-                        <literallayout class='monospaced'>
-     MACHINE = "qemux86"
-     MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS += "kernel-modules"
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Create a Layer for Patches:</emphasis>
-                        You need to create a layer to hold patches created
-                        for the kernel image.
-                        You can use the
-                        <filename>bitbake-layers create-layer</filename>
-                        command as follows:
-                        <literallayout class='monospaced'>
-     $ cd ~/poky/build
-     $ bitbake-layers create-layer ../../meta-mylayer
-     NOTE: Starting bitbake server...
-     Add your new layer with 'bitbake-layers add-layer ../../meta-mylayer'
-     $
-                        </literallayout>
-                        <note>
-                            For background information on working with
-                            common and BSP layers, see the
-                            "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and Creating Layers</ulink>"
-                            section in the Yocto Project Development Tasks
-                            Manual and the
-                            "<ulink url='&YOCTO_DOCS_BSP_URL;#bsp-layers'>BSP Layers</ulink>"
-                            section in the Yocto Project Board Support (BSP)
-                            Developer's Guide, respectively.
-                            For information on how to use the
-                            <filename>bitbake-layers create-layer</filename>
-                            command to quickly set up a layer, see the
-                            "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-a-general-layer-using-the-bitbake-layers-script'>Creating a General Layer Using the <filename>bitbake-layers</filename> Script</ulink>"
-                            section in the Yocto Project Development Tasks
-                            Manual.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Inform the BitBake Build Environment About
-                        Your Layer:</emphasis>
-                        As directed when you created your layer, you need to
-                        add the layer to the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-BBLAYERS'><filename>BBLAYERS</filename></ulink>
-                        variable in the <filename>bblayers.conf</filename> file
-                        as follows:
-                        <literallayout class='monospaced'>
-     $ cd ~/poky/build
-     $ bitbake-layers add-layer ../../meta-mylayer
-     NOTE: Starting bitbake server...
-     $
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Build the Extensible SDK:</emphasis>
-                        Use BitBake to build the extensible SDK specifically
-                        for use with images to be run using QEMU:
-                        <literallayout class='monospaced'>
-     $ cd ~/poky/build
-     $ bitbake core-image-minimal -c populate_sdk_ext
-                        </literallayout>
-                        Once the build finishes, you can find the SDK installer
-                        file (i.e. <filename>*.sh</filename> file) in the
-                        following directory:
-                        <literallayout class='monospaced'>
-     ~/poky/build/tmp/deploy/sdk
-                        </literallayout>
-                        For this example, the installer file is named
-                        <filename>poky-glibc-x86_64-core-image-minimal-i586-toolchain-ext-&DISTRO;.sh</filename>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Install the Extensible SDK:</emphasis>
-                        Use the following command to install the SDK.
-                        For this example, install the SDK in the default
-                        <filename>~/poky_sdk</filename> directory:
-                        <literallayout class='monospaced'>
-     $ cd ~/poky/build/tmp/deploy/sdk
-     $ ./poky-glibc-x86_64-core-image-minimal-i586-toolchain-ext-&DISTRO;.sh
-     Poky (Yocto Project Reference Distro) Extensible SDK installer version &DISTRO;
-     ============================================================================
-     Enter target directory for SDK (default: ~/poky_sdk):
-     You are about to install the SDK to "/home/scottrif/poky_sdk". Proceed [Y/n]? Y
-     Extracting SDK......................................done
-     Setting it up...
-     Extracting buildtools...
-     Preparing build system...
-     Parsing recipes: 100% |#################################################################| Time: 0:00:52
-     Initializing tasks: 100% |############## ###############################################| Time: 0:00:04
-     Checking sstate mirror object availability: 100% |######################################| Time: 0:00:00
-     Parsing recipes: 100% |#################################################################| Time: 0:00:33
-     Initializing tasks: 100% |##############################################################| Time: 0:00:00
-     done
-     SDK has been successfully set up and is ready to be used.
-     Each time you wish to use the SDK in a new shell session, you need to source the environment setup script e.g.
-      $ . /home/scottrif/poky_sdk/environment-setup-i586-poky-linux
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para id='setting-up-the-esdk-terminal'>
-                        <emphasis>Set Up a New Terminal to Work With the
-                        Extensible SDK:</emphasis>
-                        You must set up a new terminal to work with the SDK.
-                        You cannot use the same BitBake shell used to build the
-                        installer.</para>
-
-                        <para>After opening a new shell, run the SDK environment
-                        setup script as directed by the output from installing
-                        the SDK:
-                        <literallayout class='monospaced'>
-     $ source ~/poky_sdk/environment-setup-i586-poky-linux
-     "SDK environment now set up; additionally you may now run devtool to perform development tasks.
-     Run devtool --help for further details.
-                        </literallayout>
-                        <note>
-                            If you get a warning about attempting to use the
-                            extensible SDK in an environment set up to run
-                            BitBake, you did not use a new shell.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Build the Clean Image:</emphasis>
-                        The final step in preparing to work on the kernel is to
-                        build an initial image using
-                        <filename>devtool</filename> in the new terminal you
-                        just set up and initialized for SDK work:
-                        <literallayout class='monospaced'>
-     $ devtool build-image
-     Parsing recipes: 100% |##########################################| Time: 0:00:05
-     Parsing of 830 .bb files complete (0 cached, 830 parsed). 1299 targets, 47 skipped, 0 masked, 0 errors.
-     WARNING: No packages to add, building image core-image-minimal unmodified
-     Loading cache: 100% |############################################| Time: 0:00:00
-     Loaded 1299 entries from dependency cache.
-     NOTE: Resolving any missing task queue dependencies
-     Initializing tasks: 100% |#######################################| Time: 0:00:07
-     Checking sstate mirror object availability: 100% |###############| Time: 0:00:00
-     NOTE: Executing SetScene Tasks
-     NOTE: Executing RunQueue Tasks
-     NOTE: Tasks Summary: Attempted 2866 tasks of which 2604 didn't need to be rerun and all succeeded.
-     NOTE: Successfully built core-image-minimal. You can find output files in /home/scottrif/poky_sdk/tmp/deploy/images/qemux86
-                        </literallayout>
-                        If you were building for actual hardware and not for
-                        emulation, you could flash the image to a USB stick
-                        on <filename>/dev/sdd</filename> and boot your device.
-                        For an example that uses a Minnowboard, see the
-                        <ulink url='https://wiki.yoctoproject.org/wiki/TipsAndTricks/KernelDevelopmentWithEsdk'>TipsAndTricks/KernelDevelopmentWithEsdk</ulink>
-                        Wiki page.
-                        </para></listitem>
-                </orderedlist>
-            </para>
-
-            <para>
-                At this point you have set up to start making modifications to
-                the kernel by using the extensible SDK.
-                For a continued example, see the
-                "<link linkend='using-devtool-to-patch-the-kernel'>Using <filename>devtool</filename> to Patch the Kernel</link>"
-                section.
-            </para>
-        </section>
-
-        <section id='getting-ready-for-traditional-kernel-development'>
-            <title>Getting Ready for Traditional Kernel Development</title>
-
-            <para>
-                Getting ready for traditional kernel development using the Yocto
-                Project involves many of the same steps as described in the
-                previous section.
-                However, you need to establish a local copy of the kernel source
-                since you will be editing these files.
-            </para>
-
-            <para>
-                Follow these steps to prepare to update the kernel image using
-                traditional kernel development flow with the Yocto Project.
-                Completing this procedure leaves you ready to make modifications
-                to the kernel source as described in the
-                "<link linkend='using-traditional-kernel-development-to-patch-the-kernel'>Using Traditional Kernel Development to Patch the Kernel</link>"
-                section:
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Initialize the BitBake Environment:</emphasis>
-                        Before you can do anything using BitBake, you need to
-                        initialize the BitBake build environment by sourcing the
-                        build environment script
-                        (i.e. <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>oe-init-build-env</filename></ulink>).
-                        Also, for this example, be sure that the local branch
-                        you have checked out for <filename>poky</filename> is
-                        the Yocto Project &DISTRO_NAME; branch.
-                        If you need to checkout out the &DISTRO_NAME; branch,
-                        see the
-                        "<ulink url='&YOCTO_DOCS_DEV_URL;#checking-out-by-branch-in-poky'>Checking out by Branch in Poky</ulink>"
-                        section in the Yocto Project Development Tasks Manual.
-                        <literallayout class='monospaced'>
-     $ cd ~/poky
-     $ git branch
-     master
-     * &DISTRO_NAME;
-     $ source oe-init-build-env
-                        </literallayout>
-                        <note>
-                            The previous commands assume the
-                            <ulink url='&YOCTO_DOCS_OM_URL;#source-repositories'>Source Repositories</ulink>
-                            (i.e. <filename>poky</filename>) have been cloned
-                            using Git and the local repository is named
-                            "poky".
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Prepare Your <filename>local.conf</filename>
-                        File:</emphasis>
-                        By default, the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
-                        variable is set to "qemux86-64", which is fine if you are
-                        building for the QEMU emulator in 64-bit mode.
-                        However, if you are not, you need to set the
-                        <filename>MACHINE</filename> variable appropriately in
-                        your <filename>conf/local.conf</filename> file found
-                        in the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                        (i.e. <filename>~/poky/build</filename> in this
-                        example).</para>
-
-                        <para>Also, since you are preparing to work on the
-                        kernel image, you need to set the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS'><filename>MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</filename></ulink>
-                        variable to include kernel modules.</para>
-
-                        <para>In this example we wish to build for qemux86 so
-                        we must set the <filename>MACHINE</filename> variable
-                        to "qemux86" and also add the "kernel-modules". As described
-                        we do this by appending to <filename>conf/local.conf</filename>:
-                        <literallayout class='monospaced'>
-     MACHINE = "qemux86"
-     MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS += "kernel-modules"
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Create a Layer for Patches:</emphasis>
-                        You need to create a layer to hold patches created
-                        for the kernel image.
-                        You can use the
-                        <filename>bitbake-layers create-layer</filename>
-                        command as follows:
-                        <literallayout class='monospaced'>
-     $ cd ~/poky/build
-     $ bitbake-layers create-layer ../../meta-mylayer
-     NOTE: Starting bitbake server...
-     Add your new layer with 'bitbake-layers add-layer ../../meta-mylayer'
-                        </literallayout>
-                        <note>
-                            For background information on working with
-                            common and BSP layers, see the
-                            "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and Creating Layers</ulink>"
-                            section in the Yocto Project Development Tasks
-                            Manual and the
-                            "<ulink url='&YOCTO_DOCS_BSP_URL;#bsp-layers'>BSP Layers</ulink>"
-                            section in the Yocto Project Board Support (BSP)
-                            Developer's Guide, respectively.
-                            For information on how to use the
-                            <filename>bitbake-layers create-layer</filename>
-                            command to quickly set up a layer, see the
-                            "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-a-general-layer-using-the-bitbake-layers-script'>Creating a General Layer Using the <filename>bitbake-layers</filename> Script</ulink>"
-                            section in the Yocto Project Development Tasks
-                            Manual.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Inform the BitBake Build Environment About
-                        Your Layer:</emphasis>
-                        As directed when you created your layer, you need to add
-                        the layer to the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-BBLAYERS'><filename>BBLAYERS</filename></ulink>
-                        variable in the <filename>bblayers.conf</filename> file
-                        as follows:
-                        <literallayout class='monospaced'>
-     $ cd ~/poky/build
-     $ bitbake-layers add-layer ../../meta-mylayer
-     NOTE: Starting bitbake server ...
-     $
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Create a Local Copy of the Kernel Git
-                        Repository:</emphasis>
-                        You can find Git repositories of supported Yocto Project
-                        kernels organized under "Yocto Linux Kernel" in the
-                        Yocto Project Source Repositories at
-                        <ulink url='&YOCTO_GIT_URL;'></ulink>.
-                        </para>
-
-                        <para>
-                        For simplicity, it is recommended that you create your
-                        copy of the kernel Git repository outside of the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>,
-                        which is usually named <filename>poky</filename>.
-                        Also, be sure you are in the
-                        <filename>standard/base</filename> branch.
-                        </para>
-
-                        <para>
-                        The following commands show how to create a local copy
-                        of the <filename>linux-yocto-4.12</filename> kernel and
-                        be in the <filename>standard/base</filename> branch.
-                        <note>
-                            The <filename>linux-yocto-4.12</filename> kernel
-                            can be used with the Yocto Project 2.4 release
-                            and forward.
-                            You cannot use the
-                            <filename>linux-yocto-4.12</filename> kernel with
-                            releases prior to Yocto Project 2.4:
-                        </note>
-                        <literallayout class='monospaced'>
-     $ cd ~
-     $ git clone git://git.yoctoproject.org/linux-yocto-4.12 --branch standard/base
-     Cloning into 'linux-yocto-4.12'...
-     remote: Counting objects: 6097195, done.
-     remote: Compressing objects: 100% (901026/901026), done.
-     remote: Total 6097195 (delta 5152604), reused 6096847 (delta 5152256)
-     Receiving objects: 100% (6097195/6097195), 1.24 GiB | 7.81 MiB/s, done.
-     Resolving deltas: 100% (5152604/5152604), done.
-     Checking connectivity... done.
-     Checking out files: 100% (59846/59846), done.
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Create a Local Copy of the Kernel Cache Git
-                        Repository:</emphasis>
-                        For simplicity, it is recommended that you create your
-                        copy of the kernel cache Git repository outside of the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>,
-                        which is usually named <filename>poky</filename>.
-                        Also, for this example, be sure you are in the
-                        <filename>yocto-4.12</filename> branch.
-                        </para>
-
-                        <para>
-                        The following commands show how to create a local copy
-                        of the <filename>yocto-kernel-cache</filename> and
-                        be in the <filename>yocto-4.12</filename> branch:
-                        <literallayout class='monospaced'>
-     $ cd ~
-     $ git clone git://git.yoctoproject.org/yocto-kernel-cache --branch yocto-4.12
-     Cloning into 'yocto-kernel-cache'...
-     remote: Counting objects: 22639, done.
-     remote: Compressing objects: 100% (9761/9761), done.
-     remote: Total 22639 (delta 12400), reused 22586 (delta 12347)
-     Receiving objects: 100% (22639/22639), 22.34 MiB | 6.27 MiB/s, done.
-     Resolving deltas: 100% (12400/12400), done.
-     Checking connectivity... done.
-                        </literallayout>
-                        </para></listitem>
-                </orderedlist>
-            </para>
-
-            <para>
-                At this point, you are ready to start making modifications to
-                the kernel using traditional kernel development steps.
-                For a continued example, see the
-                "<link linkend='using-traditional-kernel-development-to-patch-the-kernel'>Using Traditional Kernel Development to Patch the Kernel</link>"
-                section.
-            </para>
-        </section>
-    </section>
-
-    <section id='creating-and-preparing-a-layer'>
-        <title>Creating and Preparing a Layer</title>
-
-        <para>
-            If you are going to be modifying kernel recipes, it is recommended
-            that you create and prepare your own layer in which to do your
-            work.
-            Your layer contains its own
-            <ulink url='&YOCTO_DOCS_REF_URL;#bitbake-term'>BitBake</ulink>
-            append files (<filename>.bbappend</filename>) and provides a
-            convenient mechanism to create your own recipe files
-            (<filename>.bb</filename>) as well as store and use kernel
-            patch files.
-            For background information on working with layers, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and Creating Layers</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-            <note><title>Tip</title>
-                The Yocto Project comes with many tools that simplify
-                tasks you need to perform.
-                One such tool is the
-                <filename>bitbake-layers create-layer</filename>
-                command, which simplifies creating a new layer.
-                See the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-a-general-layer-using-the-bitbake-layers-script'>Creating a General Layer Using the <filename>bitbake-layers</filename> Script</ulink>"
-                section in the Yocto Project Development Tasks Manual for
-                information on how to use this script to quick set up a
-                new layer.
-            </note>
-        </para>
-
-        <para>
-            To better understand the layer you create for kernel development,
-            the following section describes how to create a layer
-            without the aid of tools.
-            These steps assume creation of a layer named
-            <filename>mylayer</filename> in your home directory:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Create Structure</emphasis>:
-                    Create the layer's structure:
-                    <literallayout class='monospaced'>
-     $ cd $HOME
-     $ mkdir meta-mylayer
-     $ mkdir meta-mylayer/conf
-     $ mkdir meta-mylayer/recipes-kernel
-     $ mkdir meta-mylayer/recipes-kernel/linux
-     $ mkdir meta-mylayer/recipes-kernel/linux/linux-yocto
-                    </literallayout>
-                    The <filename>conf</filename> directory holds your
-                    configuration files, while the
-                    <filename>recipes-kernel</filename> directory holds your
-                    append file and eventual patch files.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Create the Layer Configuration File</emphasis>:
-                    Move to the <filename>meta-mylayer/conf</filename>
-                    directory and create the <filename>layer.conf</filename>
-                    file as follows:
-                    <literallayout class='monospaced'>
-     # We have a conf and classes directory, add to BBPATH
-     BBPATH .= ":${LAYERDIR}"
-
-     # We have recipes-* directories, add to BBFILES
-     BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \
-                 ${LAYERDIR}/recipes-*/*/*.bbappend"
-
-     BBFILE_COLLECTIONS += "mylayer"
-     BBFILE_PATTERN_mylayer = "^${LAYERDIR}/"
-     BBFILE_PRIORITY_mylayer = "5"
-                    </literallayout>
-                    Notice <filename>mylayer</filename> as part of the last
-                    three statements.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Create the Kernel Recipe Append File</emphasis>:
-                    Move to the
-                    <filename>meta-mylayer/recipes-kernel/linux</filename>
-                    directory and create the kernel's append file.
-                    This example uses the
-                    <filename>linux-yocto-4.12</filename> kernel.
-                    Thus, the name of the append file is
-                    <filename>linux-yocto_4.12.bbappend</filename>:
-                    <literallayout class='monospaced'>
-     FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-
-     SRC_URI_append = " file://<replaceable>patch-file-one</replaceable>"
-     SRC_URI_append = " file://<replaceable>patch-file-two</replaceable>"
-     SRC_URI_append = " file://<replaceable>patch-file-three</replaceable>"
-                    </literallayout>
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></ulink>
-                    and
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                    statements enable the OpenEmbedded build system to find
-                    patch files.
-                    For more information on using append files, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#using-bbappend-files'>Using .bbappend Files in Your Layer</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id='modifying-an-existing-recipe'>
-        <title>Modifying an Existing Recipe</title>
-
-        <para>
-            In many cases, you can customize an existing linux-yocto recipe to
-            meet the needs of your project.
-            Each release of the Yocto Project provides a few Linux
-            kernel recipes from which you can choose.
-            These are located in the
-            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-            in <filename>meta/recipes-kernel/linux</filename>.
-        </para>
-
-        <para>
-            Modifying an existing recipe can consist of the following:
-            <itemizedlist>
-                <listitem><para>Creating the append file</para></listitem>
-                <listitem><para>Applying patches</para></listitem>
-                <listitem><para>Changing the configuration</para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            Before modifying an existing recipe, be sure that you have created
-            a minimal, custom layer from which you can work.
-            See the
-            "<link linkend='creating-and-preparing-a-layer'>Creating and Preparing a Layer</link>"
-            section for information.
-        </para>
-
-        <section id='creating-the-append-file'>
-            <title>Creating the Append File</title>
-
-            <para>
-                You create this file in your custom layer.
-                You also name it accordingly based on the linux-yocto recipe
-                you are using.
-                For example, if you are modifying the
-                <filename>meta/recipes-kernel/linux/linux-yocto_4.12.bb</filename>
-                recipe, the append file will typically be located as follows
-                within your custom layer:
-                <literallayout class='monospaced'>
-     <replaceable>your-layer</replaceable>/recipes-kernel/linux/linux-yocto_4.12.bbappend
-                </literallayout>
-                The append file should initially extend the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESPATH'><filename>FILESPATH</filename></ulink>
-                search path by prepending the directory that contains your
-                files to the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></ulink>
-                variable as follows:
-                <literallayout class='monospaced'>
-     FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-                </literallayout>
-                The path <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-THISDIR'><filename>THISDIR</filename></ulink><filename>}/${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink><filename>}</filename>
-                expands to "linux-yocto" in the current directory for this
-                example.
-                If you add any new files that modify the kernel recipe and you
-                have extended <filename>FILESPATH</filename> as
-                described above, you must place the files in your layer in the
-                following area:
-                <literallayout class='monospaced'>
-     <replaceable>your-layer</replaceable>/recipes-kernel/linux/linux-yocto/
-                </literallayout>
-                <note>If you are working on a new machine Board Support Package
-                    (BSP), be sure to refer to the
-                    <ulink url='&YOCTO_DOCS_BSP_URL;'>Yocto Project Board Support Package (BSP) Developer's Guide</ulink>.
-                </note>
-            </para>
-
-            <para>
-                As an example, consider the following append file
-                used by the BSPs in <filename>meta-yocto-bsp</filename>:
-                <literallayout class='monospaced'>
-     meta-yocto-bsp/recipes-kernel/linux/linux-yocto_4.12.bbappend
-                </literallayout>
-                The following listing shows the file.
-                Be aware that the actual commit ID strings in this
-                example listing might be different than the actual strings
-                in the file from the <filename>meta-yocto-bsp</filename>
-                layer upstream.
-                <literallayout class='monospaced'>
-     KBRANCH_genericx86  = "standard/base"
-     KBRANCH_genericx86-64  = "standard/base"
-
-     KMACHINE_genericx86 ?= "common-pc"
-     KMACHINE_genericx86-64 ?= "common-pc-64"
-     KBRANCH_edgerouter = "standard/edgerouter"
-     KBRANCH_beaglebone = "standard/beaglebone"
-
-     SRCREV_machine_genericx86    ?= "d09f2ce584d60ecb7890550c22a80c48b83c2e19"
-     SRCREV_machine_genericx86-64 ?= "d09f2ce584d60ecb7890550c22a80c48b83c2e19"
-     SRCREV_machine_edgerouter ?= "b5c8cfda2dfe296410d51e131289fb09c69e1e7d"
-     SRCREV_machine_beaglebone ?= "b5c8cfda2dfe296410d51e131289fb09c69e1e7d"
-
-
-     COMPATIBLE_MACHINE_genericx86 = "genericx86"
-     COMPATIBLE_MACHINE_genericx86-64 = "genericx86-64"
-     COMPATIBLE_MACHINE_edgerouter = "edgerouter"
-     COMPATIBLE_MACHINE_beaglebone = "beaglebone"
-
-     LINUX_VERSION_genericx86 = "4.12.7"
-     LINUX_VERSION_genericx86-64 = "4.12.7"
-     LINUX_VERSION_edgerouter = "4.12.10"
-     LINUX_VERSION_beaglebone = "4.12.10"
-                </literallayout>
-                This append file contains statements used to support
-                several BSPs that ship with the Yocto Project.
-                The file defines machines using the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-COMPATIBLE_MACHINE'><filename>COMPATIBLE_MACHINE</filename></ulink>
-                variable and uses the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KMACHINE'><filename>KMACHINE</filename></ulink>
-                variable to ensure the machine name used by the OpenEmbedded
-                build system maps to the machine name used by the Linux Yocto
-                kernel.
-                The file also uses the optional
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KBRANCH'><filename>KBRANCH</filename></ulink>
-                variable to ensure the build process uses the
-                appropriate kernel branch.
-            </para>
-
-            <para>
-                Although this particular example does not use it, the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KERNEL_FEATURES'><filename>KERNEL_FEATURES</filename></ulink>
-                variable could be used to enable features specific to
-                the kernel.
-                The append file points to specific commits in the
-                <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                Git repository and the <filename>meta</filename> Git repository
-                branches to identify the exact kernel needed to build the
-                BSP.
-            </para>
-
-            <para>
-                One thing missing in this particular BSP, which you will
-                typically need when developing a BSP, is the kernel
-                configuration file (<filename>.config</filename>) for your BSP.
-                When developing a BSP, you probably have a kernel configuration
-                file or a set of kernel configuration files that, when taken
-                together, define the kernel configuration for your BSP.
-                You can accomplish this definition by putting the configurations
-                in a file or a set of files inside a directory located at the
-                same level as your kernel's append file and having the same
-                name as the kernel's main recipe file.
-                With all these conditions met, simply reference those files in
-                the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                statement in the append file.
-            </para>
-
-            <para>
-                For example, suppose you had some configuration options
-                in a file called <filename>network_configs.cfg</filename>.
-                You can place that file inside a directory named
-                <filename>linux-yocto</filename> and then add
-                a <filename>SRC_URI</filename> statement such as the
-                following to the append file.
-                When the OpenEmbedded build system builds the kernel, the
-                configuration options are picked up and applied.
-                <literallayout class='monospaced'>
-     SRC_URI += "file://network_configs.cfg"
-                </literallayout>
-            </para>
-
-            <para>
-                To group related configurations into multiple files, you
-                perform a similar procedure.
-                Here is an example that groups separate configurations
-                specifically for Ethernet and graphics into their own
-                files and adds the configurations by using a
-                <filename>SRC_URI</filename> statement like the following
-                in your append file:
-                <literallayout class='monospaced'>
-     SRC_URI += "file://myconfig.cfg \
-                 file://eth.cfg \
-                 file://gfx.cfg"
-                </literallayout>
-            </para>
-
-            <para>
-                Another variable you can use in your kernel recipe append
-                file is the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></ulink>
-                variable.
-                When you use this statement, you are extending the locations
-                used by the OpenEmbedded system to look for files and
-                patches as the recipe is processed.
-            </para>
-
-            <note>
-                <para>
-                    Other methods exist to accomplish grouping and defining
-                    configuration options.
-                    For example, if you are working with a local clone of the
-                    kernel repository, you could checkout the kernel's
-                    <filename>meta</filename> branch, make your changes, and
-                    then push the changes to the local bare clone of the
-                    kernel.
-                    The result is that you directly add configuration options
-                    to the <filename>meta</filename> branch for your BSP.
-                    The configuration options will likely end up in that
-                    location anyway if the BSP gets added to the Yocto Project.
-                </para>
-
-                <para>
-                    In general, however, the Yocto Project maintainers take
-                    care of moving the <filename>SRC_URI</filename>-specified
-                    configuration options to the kernel's
-                    <filename>meta</filename> branch.
-                    Not only is it easier for BSP developers to not have to
-                    worry about putting those configurations in the branch,
-                    but having the maintainers do it allows them to apply
-                    'global' knowledge about the kinds of common configuration
-                    options multiple BSPs in the tree are typically using.
-                    This allows for promotion of common configurations into
-                    common features.
-                </para>
-            </note>
-        </section>
-
-        <section id='applying-patches'>
-            <title>Applying Patches</title>
-
-            <para>
-                If you have a single patch or a small series of patches
-                that you want to apply to the Linux kernel source, you
-                can do so just as you would with any other recipe.
-                You first copy the patches to the path added to
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></ulink>
-                in your <filename>.bbappend</filename> file as described in
-                the previous section, and then reference them in
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                statements.
-            </para>
-
-            <para>
-                For example, you can apply a three-patch series by adding the
-                following lines to your linux-yocto
-                <filename>.bbappend</filename> file in your layer:
-                <literallayout class='monospaced'>
-     SRC_URI += "file://0001-first-change.patch"
-     SRC_URI += "file://0002-second-change.patch"
-     SRC_URI += "file://0003-third-change.patch"
-                </literallayout>
-                The next time you run BitBake to build the Linux kernel,
-                BitBake detects the change in the recipe and fetches and
-                applies the patches before building the kernel.
-            </para>
-
-            <para>
-                For a detailed example showing how to patch the kernel using
-                <filename>devtool</filename>, see the
-                "<link linkend='using-devtool-to-patch-the-kernel'>Using <filename>devtool</filename> to Patch the Kernel</link>"
-                and
-                "<link linkend='using-traditional-kernel-development-to-patch-the-kernel'>Using Traditional Kernel Development to Patch the Kernel</link>"
-                sections.
-            </para>
-        </section>
-
-        <section id='changing-the-configuration'>
-            <title>Changing the Configuration</title>
-
-            <para>
-                You can make wholesale or incremental changes to the final
-                <filename>.config</filename> file used for the eventual
-                Linux kernel configuration by including a
-                <filename>defconfig</filename> file and by specifying
-                configuration fragments in the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                to be applied to that file.
-            </para>
-
-            <para>
-                If you have a complete, working Linux kernel
-                <filename>.config</filename>
-                file you want to use for the configuration, as before, copy
-                that file to the appropriate <filename>${PN}</filename>
-                directory in your layer's
-                <filename>recipes-kernel/linux</filename> directory,
-                and rename the copied file to "defconfig".
-                Then, add the following lines to the linux-yocto
-                <filename>.bbappend</filename> file in your layer:
-                <literallayout class='monospaced'>
-     FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-     SRC_URI += "file://defconfig"
-                </literallayout>
-                The <filename>SRC_URI</filename> tells the build system how to
-                search for the file, while the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></ulink>
-                extends the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESPATH'><filename>FILESPATH</filename></ulink>
-                variable (search directories) to include the
-                <filename>${PN}</filename> directory you created to hold the
-                configuration changes.
-            </para>
-
-            <note>
-                The build system applies the configurations from the
-                <filename>defconfig</filename> file before applying any
-                subsequent configuration fragments.
-                The final kernel configuration is a combination of the
-                configurations in the <filename>defconfig</filename> file and
-                any configuration fragments you provide.
-                You need to realize that if you have any configuration
-                fragments, the build system applies these on top of and
-                after applying the existing <filename>defconfig</filename>
-                file configurations.
-            </note>
-
-            <para>
-                Generally speaking, the preferred approach is to determine the
-                incremental change you want to make and add that as a
-                configuration fragment.
-                For example, if you want to add support for a basic serial
-                console, create a file named <filename>8250.cfg</filename> in
-                the <filename>${PN}</filename> directory with the following
-                content (without indentation):
-                <literallayout class='monospaced'>
-     CONFIG_SERIAL_8250=y
-     CONFIG_SERIAL_8250_CONSOLE=y
-     CONFIG_SERIAL_8250_PCI=y
-     CONFIG_SERIAL_8250_NR_UARTS=4
-     CONFIG_SERIAL_8250_RUNTIME_UARTS=4
-     CONFIG_SERIAL_CORE=y
-     CONFIG_SERIAL_CORE_CONSOLE=y
-                </literallayout>
-                Next, include this configuration fragment and extend the
-                <filename>FILESPATH</filename> variable in your
-                <filename>.bbappend</filename> file:
-                <literallayout class='monospaced'>
-     FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-     SRC_URI += "file://8250.cfg"
-                </literallayout>
-                The next time you run BitBake to build the Linux kernel, BitBake
-                detects the change in the recipe and fetches and applies the
-                new configuration before building the kernel.
-            </para>
-
-            <para>
-                For a detailed example showing how to configure the kernel,
-                see the
-                "<link linkend='configuring-the-kernel'>Configuring the Kernel</link>"
-                section.
-            </para>
-        </section>
-
-        <section id='using-an-in-tree-defconfig-file'>
-            <title>Using an "In-Tree"&nbsp;&nbsp;<filename>defconfig</filename> File</title>
-
-            <para>
-                It might be desirable to have kernel configuration fragment
-                support through a <filename>defconfig</filename> file that
-                is pulled from the kernel source tree for the configured
-                machine.
-                By default, the OpenEmbedded build system looks for
-                <filename>defconfig</filename> files in the layer used for
-                Metadata, which is "out-of-tree", and then configures them
-                using the following:
-                <literallayout class='monospaced'>
-     SRC_URI += "file://defconfig"
-                </literallayout>
-                If you do not want to maintain copies of
-                <filename>defconfig</filename> files in your layer but would
-                rather allow users to use the default configuration from the
-                kernel tree and still be able to add configuration fragments
-                to the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                through, for example, append files, you can direct the
-                OpenEmbedded build system to use a
-                <filename>defconfig</filename> file that is "in-tree".
-            </para>
-
-            <para>
-                To specify an "in-tree" <filename>defconfig</filename> file,
-                use the following statement form:
-                <literallayout class='monospaced'>
-     KBUILD_DEFCONFIG_<replaceable>KMACHINE</replaceable> ?= <replaceable>defconfig_file</replaceable>
-                </literallayout>
-                Here is an example that assigns the
-                <filename>KBUILD_DEFCONFIG</filename> variable based on
-                "raspberrypi2" and provides the path to the "in-tree"
-                <filename>defconfig</filename> file
-                to be used for a Raspberry Pi 2,
-                which is based on the Broadcom 2708/2709 chipset:
-                <literallayout class='monospaced'>
-     KBUILD_DEFCONFIG_raspberrypi2 ?= "bcm2709_defconfig"
-                </literallayout>
-            </para>
-
-            <para>
-                Aside from modifying your kernel recipe and providing your own
-                <filename>defconfig</filename> file, you need to be sure no
-                files or statements set <filename>SRC_URI</filename> to use a
-                <filename>defconfig</filename> other than your "in-tree"
-                file (e.g. a kernel's
-                <filename>linux-</filename><replaceable>machine</replaceable><filename>.inc</filename>
-                file).
-                In other words, if the build system detects a statement
-                that identifies an "out-of-tree"
-                <filename>defconfig</filename> file, that statement
-                will override your
-                <filename>KBUILD_DEFCONFIG</filename> variable.
-            </para>
-
-            <para>
-                See the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KBUILD_DEFCONFIG'><filename>KBUILD_DEFCONFIG</filename></ulink>
-                variable description for more information.
-            </para>
-        </section>
-    </section>
-
-    <section id="using-devtool-to-patch-the-kernel">
-        <title>Using <filename>devtool</filename> to Patch the Kernel</title>
-
-        <para>
-            The steps in this procedure show you how you can patch the
-            kernel using the extensible SDK and <filename>devtool</filename>.
-            <note>
-                Before attempting this procedure, be sure you have performed
-                the steps to get ready for updating the kernel as described
-                in the
-                "<link linkend='getting-ready-to-develop-using-devtool'>Getting Ready to Develop Using <filename>devtool</filename></link>"
-                section.
-            </note>
-        </para>
-
-        <para>
-            Patching the kernel involves changing or adding configurations
-            to an existing kernel, changing or adding recipes to the kernel
-            that are needed to support specific hardware features, or even
-            altering the source code itself.
-        </para>
-
-        <para>
-            This example creates a simple patch by adding some QEMU emulator
-            console output at boot time through <filename>printk</filename>
-            statements in the kernel's <filename>calibrate.c</filename> source
-            code file.
-            Applying the patch and booting the modified image causes the added
-            messages to appear on the emulator's console.
-            The example is a continuation of the setup procedure found in
-            the
-            "<link linkend='getting-ready-to-develop-using-devtool'>Getting Ready to Develop Using <filename>devtool</filename></link>"
-            Section.
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Check Out the Kernel Source Files:</emphasis>
-                    First you must use <filename>devtool</filename> to checkout
-                    the kernel source code in its workspace.
-                    Be sure you are in the terminal set up to do work
-                    with the extensible SDK.
-                    <note>
-                        See this
-                        <link linkend='setting-up-the-esdk-terminal'>step</link>
-                        in the
-                        "<link linkend='getting-ready-to-develop-using-devtool'>Getting Ready to Develop Using <filename>devtool</filename></link>"
-                        section for more information.
-                    </note>
-                    Use the following <filename>devtool</filename> command
-                    to check out the code:
-                    <literallayout class='monospaced'>
-     $ devtool modify linux-yocto
-                    </literallayout>
-                    <note>
-                        During the checkout operation, a bug exists that could
-                        cause errors such as the following to appear:
-                        <literallayout class='monospaced'>
-     ERROR: Taskhash mismatch 2c793438c2d9f8c3681fd5f7bc819efa versus
-            be3a89ce7c47178880ba7bf6293d7404 for
-            /path/to/esdk/layers/poky/meta/recipes-kernel/linux/linux-yocto_4.10.bb.do_unpack
-                        </literallayout>
-                        You can safely ignore these messages.
-                        The source code is correctly checked out.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Edit the Source Files</emphasis>
-                    Follow these steps to make some simple changes to the source
-                    files:
-                    <orderedlist>
-                        <listitem><para>
-                            <emphasis>Change the working directory</emphasis>:
-                            In the previous step, the output noted where you can find
-                            the source files (e.g.
-                            <filename>~/poky_sdk/workspace/sources/linux-yocto</filename>).
-                            Change to where the kernel source code is before making
-                            your edits to the <filename>calibrate.c</filename> file:
-                            <literallayout class='monospaced'>
-     $ cd ~/poky_sdk/workspace/sources/linux-yocto
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Edit the source file</emphasis>:
-                            Edit the <filename>init/calibrate.c</filename> file to have
-                            the following changes:
-                            <literallayout class='monospaced'>
-     void calibrate_delay(void)
-     {
-         unsigned long lpj;
-         static bool printed;
-         int this_cpu = smp_processor_id();
-
-         printk("*************************************\n");
-         printk("*                                   *\n");
-         printk("*        HELLO YOCTO KERNEL         *\n");
-         printk("*                                   *\n");
-         printk("*************************************\n");
-
-     	if (per_cpu(cpu_loops_per_jiffy, this_cpu)) {
-               .
-               .
-               .
-                            </literallayout>
-                            </para></listitem>
-                    </orderedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Build the Updated Kernel Source:</emphasis>
-                    To build the updated kernel source, use
-                    <filename>devtool</filename>:
-                    <literallayout class='monospaced'>
-     $ devtool build linux-yocto
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Create the Image With the New Kernel:</emphasis>
-                    Use the <filename>devtool build-image</filename> command
-                    to create a new image that has the new kernel.
-                    <note>
-                        If the image you originally created resulted in a Wic
-                        file, you can use an alternate method to create the new
-                        image with the updated kernel.
-                        For an example, see the steps in the
-                        <ulink url='https://wiki.yoctoproject.org/wiki/TipsAndTricks/KernelDevelopmentWithEsdk'>TipsAndTricks/KernelDevelopmentWithEsdk</ulink>
-                        Wiki Page.
-                    </note>
-                    <literallayout class='monospaced'>
-     $ cd ~
-     $ devtool build-image core-image-minimal
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Test the New Image:</emphasis>
-                    For this example, you can run the new image using QEMU
-                    to verify your changes:
-                    <orderedlist>
-                        <listitem><para>
-                            <emphasis>Boot the image</emphasis>:
-                            Boot the modified image in the QEMU emulator
-                            using this command:
-                            <literallayout class='monospaced'>
-     $ runqemu qemux86
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Verify the changes</emphasis>:
-                            Log into the machine using <filename>root</filename>
-                            with no password and then use the following shell
-                            command to scroll through the console's boot output.
-                            <literallayout class='monospaced'>
-     # dmesg | less
-                            </literallayout>
-                            You should see the results of your
-                            <filename>printk</filename> statements
-                            as part of the output when you scroll down the
-                            console window.
-                            </para></listitem>
-                    </orderedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Stage and commit your changes</emphasis>:
-                    Within your eSDK terminal, change your working directory to
-                    where you modified the <filename>calibrate.c</filename>
-                    file and use these Git commands to stage and commit your
-                    changes:
-                    <literallayout class='monospaced'>
-     $ cd ~/poky_sdk/workspace/sources/linux-yocto
-     $ git status
-     $ git add init/calibrate.c
-     $ git commit -m "calibrate: Add printk example"
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Export the Patches and Create an Append File:</emphasis>
-                    To export your commits as patches and create a
-                    <filename>.bbappend</filename> file, use the following
-                    command in the terminal used to work with the extensible
-                    SDK.
-                    This example uses the previously established layer named
-                    <filename>meta-mylayer</filename>.
-                    <note>
-                        See Step 3 of the
-                        "<link linkend='getting-ready-to-develop-using-devtool'>Getting Ready to Develop Using devtool</link>"
-                        section for information on setting up this layer.
-                    </note>
-                    <literallayout class='monospaced'>
-     $ devtool finish linux-yocto ~/meta-mylayer
-                    </literallayout>
-                    Once the command finishes, the patches and the
-                    <filename>.bbappend</filename> file are located in the
-                    <filename>~/meta-mylayer/recipes-kernel/linux</filename>
-                    directory.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Build the Image With Your Modified Kernel:</emphasis>
-                    You can now build an image that includes your kernel
-                    patches.
-                    Execute the following command from your
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                    in the terminal set up to run BitBake:
-                    <literallayout class='monospaced'>
-     $ cd ~/poky/build
-     $ bitbake core-image-minimal
-                    </literallayout>
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id="using-traditional-kernel-development-to-patch-the-kernel">
-        <title>Using Traditional Kernel Development to Patch the Kernel</title>
-
-        <para>
-            The steps in this procedure show you how you can patch the
-            kernel using traditional kernel development (i.e. not using
-            <filename>devtool</filename> and the extensible SDK as
-            described in the
-            "<link linkend='using-devtool-to-patch-the-kernel'>Using <filename>devtool</filename> to Patch the Kernel</link>"
-            section).
-            <note>
-                Before attempting this procedure, be sure you have performed
-                the steps to get ready for updating the kernel as described
-                in the
-                "<link linkend='getting-ready-for-traditional-kernel-development'>Getting Ready for Traditional Kernel Development</link>"
-                section.
-            </note>
-        </para>
-
-        <para>
-            Patching the kernel involves changing or adding configurations
-            to an existing kernel, changing or adding recipes to the kernel
-            that are needed to support specific hardware features, or even
-            altering the source code itself.
-        </para>
-
-        <para>
-            The example in this section creates a simple patch by adding some
-            QEMU emulator console output at boot time through
-            <filename>printk</filename> statements in the kernel's
-            <filename>calibrate.c</filename> source code file.
-            Applying the patch and booting the modified image causes the added
-            messages to appear on the emulator's console.
-            The example is a continuation of the setup procedure found in
-            the
-            "<link linkend='getting-ready-for-traditional-kernel-development'>Getting Ready for Traditional Kernel Development</link>"
-            Section.
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Edit the Source Files</emphasis>
-                    Prior to this step, you should have used Git to create a
-                    local copy of the repository for your kernel.
-                    Assuming you created the repository as directed in the
-                    "<link linkend='getting-ready-for-traditional-kernel-development'>Getting Ready for Traditional Kernel Development</link>"
-                    section, use the following commands to edit the
-                    <filename>calibrate.c</filename> file:
-                    <orderedlist>
-                        <listitem><para>
-                            <emphasis>Change the working directory</emphasis>:
-                            You need to locate the source files in the
-                            local copy of the kernel Git repository:
-                            Change to where the kernel source code is before making
-                            your edits to the <filename>calibrate.c</filename> file:
-                            <literallayout class='monospaced'>
-     $ cd ~/linux-yocto-4.12/init
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Edit the source file</emphasis>:
-                            Edit the <filename>calibrate.c</filename> file to have
-                            the following changes:
-                            <literallayout class='monospaced'>
-     void calibrate_delay(void)
-     {
-         unsigned long lpj;
-         static bool printed;
-         int this_cpu = smp_processor_id();
-
-         printk("*************************************\n");
-         printk("*                                   *\n");
-         printk("*        HELLO YOCTO KERNEL         *\n");
-         printk("*                                   *\n");
-         printk("*************************************\n");
-
-     	if (per_cpu(cpu_loops_per_jiffy, this_cpu)) {
-               .
-               .
-               .
-                            </literallayout>
-                            </para></listitem>
-                    </orderedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Stage and Commit Your Changes:</emphasis>
-                    Use standard Git commands to stage and commit the changes
-                    you just made:
-                    <literallayout class='monospaced'>
-     $ git add calibrate.c
-     $ git commit -m "calibrate.c - Added some printk statements"
-                    </literallayout>
-                    If you do not stage and commit your changes, the OpenEmbedded
-                    Build System will not pick up the changes.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Update Your <filename>local.conf</filename> File
-                    to Point to Your Source Files:</emphasis>
-                    In addition to your <filename>local.conf</filename> file
-                    specifying to use "kernel-modules" and the "qemux86"
-                    machine, it must also point to the updated kernel source
-                    files.
-                    Add
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                    and
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SRCREV'><filename>SRCREV</filename></ulink>
-                    statements similar to the following to your
-                    <filename>local.conf</filename>:
-                    <literallayout class='monospaced'>
-     $ cd ~/poky/build/conf
-                    </literallayout>
-                    Add the following to the <filename>local.conf</filename>:
-                    <literallayout class='monospaced'>
-     SRC_URI_pn-linux-yocto = "git:///<replaceable>path-to</replaceable>/linux-yocto-4.12;protocol=file;name=machine;branch=standard/base; \
-                               git:///<replaceable>path-to</replaceable>/yocto-kernel-cache;protocol=file;type=kmeta;name=meta;branch=yocto-4.12;destsuffix=${KMETA}"
-     SRCREV_meta_qemux86 = "${AUTOREV}"
-     SRCREV_machine_qemux86 = "${AUTOREV}"
-                    </literallayout>
-                    <note>
-                        Be sure to replace
-                        <replaceable>path-to</replaceable> with the pathname
-                        to your local Git repositories.
-                        Also, you must be sure to specify the correct branch
-                        and machine types.
-                        For this example, the branch is
-                        <filename>standard/base</filename> and the machine is
-                        "qemux86".
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Build the Image:</emphasis>
-                    With the source modified, your changes staged and
-                    committed, and the <filename>local.conf</filename> file
-                    pointing to the kernel files, you can now use BitBake to
-                    build the image:
-                    <literallayout class='monospaced'>
-     $ cd ~/poky/build
-     $ bitbake core-image-minimal
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Boot the image</emphasis>:
-                    Boot the modified image in the QEMU emulator
-                    using this command.
-                    When prompted to login to the QEMU console, use "root"
-                    with no password:
-                    <literallayout class='monospaced'>
-     $ cd ~/poky/build
-     $ runqemu qemux86
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Look for Your Changes:</emphasis>
-                    As QEMU booted, you might have seen your changes rapidly
-                    scroll by.
-                    If not, use these commands to see your changes:
-                    <literallayout class='monospaced'>
-     # dmesg | less
-                    </literallayout>
-                    You should see the results of your
-                    <filename>printk</filename> statements
-                    as part of the output when you scroll down the
-                    console window.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Generate the Patch File:</emphasis>
-                    Once you are sure that your patch works correctly, you
-                    can generate a <filename>*.patch</filename> file in the
-                    kernel source repository:
-                    <literallayout class='monospaced'>
-     $ cd ~/linux-yocto-4.12/init
-     $ git format-patch -1
-     0001-calibrate.c-Added-some-printk-statements.patch
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Move the Patch File to Your Layer:</emphasis>
-                    In order for subsequent builds to pick up patches, you
-                    need to move the patch file you created in the previous
-                    step to your layer <filename>meta-mylayer</filename>.
-                    For this example, the layer created earlier is located
-                    in your home directory as <filename>meta-mylayer</filename>.
-                    When the layer was created using the
-                    <filename>yocto-create</filename> script, no additional
-                    hierarchy was created to support patches.
-                    Before moving the patch file, you need to add additional
-                    structure to your layer using the following commands:
-                    <literallayout class='monospaced'>
-     $ cd ~/meta-mylayer
-     $ mkdir recipes-kernel
-     $ mkdir recipes-kernel/linux
-     $ mkdir recipes-kernel/linux/linux-yocto
-                    </literallayout>
-                    Once you have created this hierarchy in your layer, you can
-                    move the patch file using the following command:
-                    <literallayout class='monospaced'>
-     $ mv ~/linux-yocto-4.12/init/0001-calibrate.c-Added-some-printk-statements.patch ~/meta-mylayer/recipes-kernel/linux/linux-yocto
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Create the Append File:</emphasis>
-                    Finally, you need to create the
-                    <filename>linux-yocto_4.12.bbappend</filename> file and
-                    insert statements that allow the OpenEmbedded build
-                    system to find the patch.
-                    The append file needs to be in your layer's
-                    <filename>recipes-kernel/linux</filename>
-                    directory and it must be named
-                    <filename>linux-yocto_4.12.bbappend</filename> and have
-                    the following contents:
-                    <literallayout class='monospaced'>
-     FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-
-     SRC_URI_append = " file://0001-calibrate.c-Added-some-printk-statements.patch"
-                    </literallayout>
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></ulink>
-                    and
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                    statements enable the OpenEmbedded build system to find
-                    the patch file.</para>
-
-                    <para>For more information on append files and patches,
-                    see the
-                    "<link linkend='creating-the-append-file'>Creating the Append File</link>"
-                    and
-                    "<link linkend='applying-patches'>Applying Patches</link>"
-                    sections.
-                    You can also see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#using-bbappend-files'>Using .bbappend Files in Your Layer"</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    <note>
-                        To build <filename>core-image-minimal</filename>
-                        again and see the effects of your patch, you can
-                        essentially eliminate the temporary source files
-                        saved in <filename>poky/build/tmp/work/...</filename>
-                        and residual effects of the build by entering the
-                        following sequence of commands:
-                        <literallayout class='monospaced'>
-     $ cd ~/poky/build
-     $ bitbake -c cleanall yocto-linux
-     $ bitbake core-image-minimal -c cleanall
-     $ bitbake core-image-minimal
-     $ runqemu qemux86
-                        </literallayout>
-                    </note>
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id='configuring-the-kernel'>
-        <title>Configuring the Kernel</title>
-
-        <para>
-            Configuring the Yocto Project kernel consists of making sure the
-            <filename>.config</filename> file has all the right information
-            in it for the image you are building.
-            You can use the <filename>menuconfig</filename> tool and
-            configuration fragments to make sure your
-            <filename>.config</filename> file is just how you need it.
-            You can also save known configurations in a
-            <filename>defconfig</filename> file that the build system can use
-            for kernel configuration.
-        </para>
-
-        <para>
-            This section describes how to use <filename>menuconfig</filename>,
-            create and use configuration fragments, and how to interactively
-            modify your <filename>.config</filename> file to create the
-            leanest kernel configuration file possible.
-        </para>
-
-        <para>
-            For more information on kernel configuration, see the
-            "<link linkend='changing-the-configuration'>Changing the Configuration</link>"
-            section.
-        </para>
-
-        <section id='using-menuconfig'>
-            <title>Using&nbsp;&nbsp;<filename>menuconfig</filename></title>
-
-            <para>
-                The easiest way to define kernel configurations is to set
-                them through the <filename>menuconfig</filename> tool.
-                This tool provides an interactive method with which
-                to set kernel configurations.
-                For general information on <filename>menuconfig</filename>, see
-                <ulink url='http://en.wikipedia.org/wiki/Menuconfig'></ulink>.
-            </para>
-
-            <para>
-                To use the <filename>menuconfig</filename> tool in the Yocto
-                Project development environment, you must do the following:
-                <itemizedlist>
-                    <listitem><para>
-                        Because you launch <filename>menuconfig</filename>
-                        using BitBake, you must be sure to set up your
-                        environment by running the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>
-                        script found in the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                        </para></listitem>
-                    <listitem><para>
-                        You must be sure of the state of your build's
-                        configuration in the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>.
-                        </para></listitem>
-                    <listitem><para>
-                        Your build host must have the following two packages
-                        installed:
-                        <literallayout class='monospaced'>
-     libncurses5-dev
-     libtinfo-dev
-                        </literallayout>
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                The following commands initialize the BitBake environment,
-                run the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-kernel_configme'><filename>do_kernel_configme</filename></ulink>
-                task, and launch <filename>menuconfig</filename>.
-                These commands assume the Source Directory's top-level folder
-                is <filename>~/poky</filename>:
-                <literallayout class='monospaced'>
-     $ cd poky
-     $ source oe-init-build-env
-     $ bitbake linux-yocto -c kernel_configme -f
-     $ bitbake linux-yocto -c menuconfig
-                </literallayout>
-                Once <filename>menuconfig</filename> comes up, its standard
-                interface allows you to interactively examine and configure
-                all the kernel configuration parameters.
-                After making your changes, simply exit the tool and save your
-                changes to create an updated version of the
-                <filename>.config</filename> configuration file.
-                <note>
-                    You can use the entire <filename>.config</filename> file
-                    as the <filename>defconfig</filename> file.
-                    For information on <filename>defconfig</filename> files,
-                    see the
-                    "<link linkend='changing-the-configuration'>Changing the Configuration</link>",
-                    "<link linkend='using-an-in-tree-defconfig-file'>Using an In-Tree <filename>defconfig</filename> File</link>,
-                    and
-                    "<link linkend='creating-a-defconfig-file'>Creating a <filename>defconfig</filename> File</link>"
-                    sections.
-                </note>
-            </para>
-
-            <para>
-                Consider an example that configures the "CONFIG_SMP" setting
-                for the <filename>linux-yocto-4.12</filename> kernel.
-                <note>
-                    The OpenEmbedded build system recognizes this kernel as
-                    <filename>linux-yocto</filename> through Metadata (e.g.
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PREFERRED_VERSION'><filename>PREFERRED_VERSION</filename></ulink><filename>_linux-yocto ?= "12.4%"</filename>).
-                </note>
-                Once <filename>menuconfig</filename> launches, use the
-                interface to navigate through the selections to find the
-                configuration settings in which you are interested.
-                For this example, you deselect "CONFIG_SMP" by clearing the
-                "Symmetric Multi-Processing Support" option.
-                Using the interface, you can find the option under
-                "Processor Type and Features".
-                To deselect "CONFIG_SMP", use the arrow keys to
-                highlight "Symmetric Multi-Processing Support" and enter "N"
-                to clear the asterisk.
-                When you are finished, exit out and save the change.
-            </para>
-
-            <para>
-                Saving the selections updates the <filename>.config</filename>
-                configuration file.
-                This is the file that the OpenEmbedded build system uses to
-                configure the kernel during the build.
-                You can find and examine this file in the Build Directory in
-                <filename>tmp/work/</filename>.
-                The actual <filename>.config</filename> is located in the
-                area where the specific kernel is built.
-                For example, if you were building a Linux Yocto kernel based
-                on the <filename>linux-yocto-4.12</filename> kernel and you
-                were building a QEMU image targeted for
-                <filename>x86</filename> architecture, the
-                <filename>.config</filename> file would be:
-                <literallayout class='monospaced'>
-     poky/build/tmp/work/qemux86-poky-linux/linux-yocto/4.12.12+gitAUTOINC+eda4d18...
-     ...967-r0/linux-qemux86-standard-build/.config
-                </literallayout>
-                <note>
-                    The previous example directory is artificially split and
-                    many of the characters in the actual filename are omitted
-                    in order to make it more readable.
-                    Also, depending on the kernel you are using, the exact
-                    pathname might differ.
-                </note>
-            </para>
-
-            <para>
-                Within the <filename>.config</filename> file, you can see the
-                kernel settings.
-                For example, the following entry shows that symmetric
-                multi-processor support is not set:
-                <literallayout class='monospaced'>
-     # CONFIG_SMP is not set
-                </literallayout>
-            </para>
-
-            <para>
-                A good method to isolate changed configurations is to use a
-                combination of the <filename>menuconfig</filename> tool and
-                simple shell commands.
-                Before changing configurations with
-                <filename>menuconfig</filename>, copy the existing
-                <filename>.config</filename> and rename it to something else,
-                use <filename>menuconfig</filename> to make as many changes as
-                you want and save them, then compare the renamed configuration
-                file against the newly created file.
-                You can use the resulting differences as your base to create
-                configuration fragments to permanently save in your kernel
-                layer.
-                <note>
-                    Be sure to make a copy of the <filename>.config</filename>
-                    file and do not just rename it.
-                    The build system needs an existing
-                    <filename>.config</filename> file from which to work.
-                </note>
-            </para>
-        </section>
-
-        <section id='creating-a-defconfig-file'>
-            <title>Creating a&nbsp;&nbsp;<filename>defconfig</filename> File</title>
-
-            <para>
-                A <filename>defconfig</filename> file in the context of
-                the Yocto Project is often a <filename>.config</filename>
-                file that is copied from a build or a
-                <filename>defconfig</filename> taken from the kernel tree
-                and moved into recipe space.
-                You can use a <filename>defconfig</filename> file
-                to retain a known set of kernel configurations from which the
-                OpenEmbedded build system can draw to create the final
-                <filename>.config</filename> file.
-                <note>
-                    Out-of-the-box, the Yocto Project never ships a
-                    <filename>defconfig</filename> or
-                    <filename>.config</filename> file.
-                    The OpenEmbedded build system creates the final
-                    <filename>.config</filename> file used to configure the
-                    kernel.
-                </note>
-            </para>
-
-            <para>
-                To create a <filename>defconfig</filename>, start with a
-                complete, working Linux kernel <filename>.config</filename>
-                file.
-                Copy that file to the appropriate
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink><filename>}</filename>
-                directory in your layer's
-                <filename>recipes-kernel/linux</filename> directory, and rename
-                the copied file to "defconfig" (e.g.
-                <filename>~/meta-mylayer/recipes-kernel/linux/linux-yocto/defconfig</filename>).
-                Then, add the following lines to the linux-yocto
-                <filename>.bbappend</filename> file in your layer:
-                <literallayout class='monospaced'>
-     FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-     SRC_URI += "file://defconfig"
-                </literallayout>
-                The
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                tells the build system how to search for the file, while the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></ulink>
-                extends the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESPATH'><filename>FILESPATH</filename></ulink>
-                variable (search directories) to include the
-                <filename>${PN}</filename> directory you created to hold the
-                configuration changes.
-                <note>
-                    The build system applies the configurations from the
-                    <filename>defconfig</filename> file before applying any
-                    subsequent configuration fragments.
-                    The final kernel configuration is a combination of the
-                    configurations in the <filename>defconfig</filename>
-                    file and any configuration fragments you provide.
-                    You need to realize that if you have any configuration
-                    fragments, the build system applies these on top of and
-                    after applying the existing defconfig file configurations.
-                </note>
-                For more information on configuring the kernel, see the
-                "<link linkend='changing-the-configuration'>Changing the Configuration</link>"
-                section.
-            </para>
-        </section>
-
-        <section id='creating-config-fragments'>
-            <title>Creating Configuration Fragments</title>
-
-            <para>
-                Configuration fragments are simply kernel options that
-                appear in a file placed where the OpenEmbedded build system
-                can find and apply them.
-                The build system applies configuration fragments after
-                applying configurations from a <filename>defconfig</filename>
-                file.
-                Thus, the final kernel configuration is a combination of the
-                configurations in the <filename>defconfig</filename>
-                file and then any configuration fragments you provide.
-                The build system applies fragments on top of and
-                after applying the existing defconfig file configurations.
-            </para>
-
-            <para>
-                Syntactically, the configuration statement is identical to
-                what would appear in the <filename>.config</filename> file,
-                which is in the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                <note>
-                    For more information about where the
-                    <filename>.config</filename> file is located, see the
-                    example in the
-                    "<link linkend='using-menuconfig'>Using <filename>menuconfig</filename></link>"
-                    section.
-                </note>
-            </para>
-
-            <para>
-                It is simple to create a configuration fragment.
-                One method is to use shell commands.
-                For example, issuing the following from the shell creates a
-                configuration fragment file named
-                <filename>my_smp.cfg</filename> that enables multi-processor
-                support within the kernel:
-                <literallayout class='monospaced'>
-     $ echo "CONFIG_SMP=y" >> my_smp.cfg
-                </literallayout>
-                <note>
-                    All configuration fragment files must use the
-                    <filename>.cfg</filename> extension in order for the
-                    OpenEmbedded build system to recognize them as a
-                    configuration fragment.
-                </note>
-            </para>
-
-            <para>
-                Another method is to create a configuration fragment using the
-                differences between two configuration files: one previously
-                created and saved, and one freshly created using the
-                <filename>menuconfig</filename> tool.
-            </para>
-
-            <para>
-                To create a configuration fragment using this method, follow
-                these steps:
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Complete a Build Through Kernel Configuration:</emphasis>
-                        Complete a build at least through the kernel
-                        configuration task as follows:
-                        <literallayout class='monospaced'>
-     $ bitbake linux-yocto -c kernel_configme -f
-                        </literallayout>
-                        This step ensures that you create a
-                        <filename>.config</filename> file from a known state.
-                        Because situations exist where your build state might
-                        become unknown, it is best to run this task prior
-                        to starting <filename>menuconfig</filename>.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Launch <filename>menuconfig</filename>:</emphasis>
-                        Run the <filename>menuconfig</filename> command:
-                        <literallayout class='monospaced'>
-     $ bitbake linux-yocto -c menuconfig
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Create the Configuration Fragment:</emphasis>
-                        Run the <filename>diffconfig</filename>
-                        command to prepare a configuration fragment.
-                        The resulting file <filename>fragment.cfg</filename>
-                        is placed in the
-                        <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink><filename>}</filename> directory:
-                        <literallayout class='monospaced'>
-     $ bitbake linux-yocto -c diffconfig
-                        </literallayout>
-                        </para></listitem>
-                </orderedlist>
-            </para>
-
-            <para>
-                The <filename>diffconfig</filename> command creates a file
-                that is a list of Linux kernel <filename>CONFIG_</filename>
-                assignments.
-                See the "<link linkend='changing-the-configuration'>Changing the Configuration</link>"
-                section for additional information on how to use the output
-                as a configuration fragment.
-                <note>
-                    You can also use this method to create configuration
-                    fragments for a BSP.
-                    See the "<link linkend='bsp-descriptions'>BSP Descriptions</link>"
-                    section for more information.
-                </note>
-            </para>
-
-            <para>
-                Where do you put your configuration fragment files?
-                You can place these files in an area pointed to by
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                as directed by your <filename>bblayers.conf</filename> file,
-                which is located in your layer.
-                The OpenEmbedded build system picks up the configuration and
-                adds it to the kernel's configuration.
-                For example, suppose you had a set of configuration options
-                in a file called <filename>myconfig.cfg</filename>.
-                If you put that file inside a directory named
-                <filename>linux-yocto</filename> that resides in the same
-                directory as the kernel's append file within your layer
-                and then add the following statements to the kernel's append
-                file, those configuration options will be picked up and applied
-                when the kernel is built:
-                <literallayout class='monospaced'>
-     FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-     SRC_URI += "file://myconfig.cfg"
-                </literallayout>
-            </para>
-
-            <para>
-                As mentioned earlier, you can group related configurations
-                into multiple files and name them all in the
-                <filename>SRC_URI</filename> statement as well.
-                For example, you could group separate configurations
-                specifically for Ethernet and graphics into their own files
-                and add those by using a <filename>SRC_URI</filename> statement
-                like the following in your append file:
-                <literallayout class='monospaced'>
-     SRC_URI += "file://myconfig.cfg \
-            file://eth.cfg \
-            file://gfx.cfg"
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='validating-configuration'>
-            <title>Validating Configuration</title>
-
-            <para>
-                You can use the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-kernel_configcheck'><filename>do_kernel_configcheck</filename></ulink>
-                task to provide configuration validation:
-                <literallayout class='monospaced'>
-     $ bitbake linux-yocto -c kernel_configcheck -f
-                </literallayout>
-                Running this task produces warnings for when a
-                requested configuration does not appear in the final
-                <filename>.config</filename> file or when you override a
-                policy configuration in a hardware configuration fragment.
-            </para>
-
-            <para>
-                In order to run this task, you must have an existing
-                <filename>.config</filename> file.
-                See the
-                "<link linkend='using-menuconfig'>Using <filename>menuconfig</filename></link>"
-                section for information on how to create a configuration file.
-            </para>
-
-            <para>
-                Following is sample output from the
-                <filename>do_kernel_configcheck</filename> task:
-                <literallayout class='monospaced'>
-     Loading cache: 100% |########################################################| Time: 0:00:00
-     Loaded 1275 entries from dependency cache.
-     NOTE: Resolving any missing task queue dependencies
-
-     Build Configuration:
-         .
-         .
-         .
-
-     NOTE: Executing SetScene Tasks
-     NOTE: Executing RunQueue Tasks
-     WARNING: linux-yocto-4.12.12+gitAUTOINC+eda4d18ce4_16de014967-r0 do_kernel_configcheck:
-         [kernel config]: specified values did not make it into the kernel's final configuration:
-
-     ---------- CONFIG_X86_TSC -----------------
-     Config: CONFIG_X86_TSC
-     From: /home/scottrif/poky/build/tmp/work-shared/qemux86/kernel-source/.kernel-meta/configs/standard/bsp/common-pc/common-pc-cpu.cfg
-     Requested value:  CONFIG_X86_TSC=y
-     Actual value:
-
-
-     ---------- CONFIG_X86_BIGSMP -----------------
-     Config: CONFIG_X86_BIGSMP
-     From: /home/scottrif/poky/build/tmp/work-shared/qemux86/kernel-source/.kernel-meta/configs/standard/cfg/smp.cfg
-           /home/scottrif/poky/build/tmp/work-shared/qemux86/kernel-source/.kernel-meta/configs/standard/defconfig
-     Requested value:  # CONFIG_X86_BIGSMP is not set
-     Actual value:
-
-
-     ---------- CONFIG_NR_CPUS -----------------
-     Config: CONFIG_NR_CPUS
-     From: /home/scottrif/poky/build/tmp/work-shared/qemux86/kernel-source/.kernel-meta/configs/standard/cfg/smp.cfg
-           /home/scottrif/poky/build/tmp/work-shared/qemux86/kernel-source/.kernel-meta/configs/standard/bsp/common-pc/common-pc.cfg
-           /home/scottrif/poky/build/tmp/work-shared/qemux86/kernel-source/.kernel-meta/configs/standard/defconfig
-     Requested value:  CONFIG_NR_CPUS=8
-     Actual value:     CONFIG_NR_CPUS=1
-
-
-     ---------- CONFIG_SCHED_SMT -----------------
-     Config: CONFIG_SCHED_SMT
-     From: /home/scottrif/poky/build/tmp/work-shared/qemux86/kernel-source/.kernel-meta/configs/standard/cfg/smp.cfg
-           /home/scottrif/poky/build/tmp/work-shared/qemux86/kernel-source/.kernel-meta/configs/standard/defconfig
-     Requested value:  CONFIG_SCHED_SMT=y
-     Actual value:
-
-
-
-     NOTE: Tasks Summary: Attempted 288 tasks of which 285 didn't need to be rerun and all succeeded.
-
-     Summary: There were 3 WARNING messages shown.
-                </literallayout>
-                <note>
-                    The previous output example has artificial line breaks
-                    to make it more readable.
-                </note>
-            </para>
-
-            <para>
-                The output describes the various problems that you can
-                encounter along with where to find the offending configuration
-                items.
-                You can use the information in the logs to adjust your
-                configuration files and then repeat the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-kernel_configme'><filename>do_kernel_configme</filename></ulink>
-                and
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-kernel_configcheck'><filename>do_kernel_configcheck</filename></ulink>
-                tasks until they produce no warnings.
-            </para>
-
-            <para>
-                For more information on how to use the
-                <filename>menuconfig</filename> tool, see the
-                "<link linkend='using-menuconfig'>Using <filename>menuconfig</filename></link>"
-                section.
-            </para>
-        </section>
-
-        <section id='fine-tuning-the-kernel-configuration-file'>
-            <title>Fine-Tuning the Kernel Configuration File</title>
-
-            <para>
-                You can make sure the <filename>.config</filename> file is as
-                lean or efficient as possible by reading the output of the
-                kernel configuration fragment audit, noting any issues, making
-                changes to correct the issues, and then repeating.
-            </para>
-
-            <para>
-                As part of the kernel build process, the
-                <filename>do_kernel_configcheck</filename> task runs.
-                This task validates the kernel configuration by checking the
-                final <filename>.config</filename> file against the input
-                files.
-                During the check, the task produces warning messages for the
-                following issues:
-                <itemizedlist>
-                    <listitem><para>
-                        Requested options that did not make the final
-                        <filename>.config</filename> file.
-                        </para></listitem>
-                    <listitem><para>
-                        Configuration items that appear twice in the same
-                        configuration fragment.
-                        </para></listitem>
-                    <listitem><para>
-                        Configuration items tagged as "required" that were
-                        overridden.
-                        </para></listitem>
-                    <listitem><para>
-                        A board overrides a non-board specific option.
-                        </para></listitem>
-                    <listitem><para>
-                        Listed options not valid for the kernel being
-                        processed.
-                        In other words, the option does not appear anywhere.
-                        </para></listitem>
-                </itemizedlist>
-                <note>
-                    The <filename>do_kernel_configcheck</filename> task can
-                    also optionally report if an option is overridden during
-                    processing.
-                </note>
-            </para>
-
-            <para>
-                For each output warning, a message points to the file
-                that contains a list of the options and a pointer to the
-                configuration fragment that defines them.
-                Collectively, the files are the key to streamlining the
-                configuration.
-            </para>
-
-            <para>
-                To streamline the configuration, do the following:
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Use a Working Configuration:</emphasis>
-                        Start with a full configuration that you
-                        know works.
-                        Be sure the configuration builds and boots
-                        successfully.
-                        Use this configuration file as your baseline.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Run Configure and Check Tasks:</emphasis>
-                        Separately run the
-                        <filename>do_kernel_configme</filename> and
-                        <filename>do_kernel_configcheck</filename> tasks:
-                        <literallayout class='monospaced'>
-     $ bitbake linux-yocto -c kernel_configme -f
-     $ bitbake linux-yocto -c kernel_configcheck -f
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Process the Results:</emphasis>
-                        Take the resulting list of files from the
-                        <filename>do_kernel_configcheck</filename> task
-                        warnings and do the following:
-                        <itemizedlist>
-                            <listitem><para>
-                                Drop values that are redefined in the fragment
-                                but do not change the final
-                                <filename>.config</filename> file.
-                                </para></listitem>
-                            <listitem><para>
-                                Analyze and potentially drop values from the
-                                <filename>.config</filename> file that override
-                                required configurations.
-                                </para></listitem>
-                            <listitem><para>
-                                Analyze and potentially remove non-board
-                                specific options.
-                                </para></listitem>
-                            <listitem><para>
-                                Remove repeated and invalid options.
-                                </para></listitem>
-                        </itemizedlist>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Re-Run Configure and Check Tasks:</emphasis>
-                        After you have worked through the output of the kernel
-                        configuration audit, you can re-run the
-                        <filename>do_kernel_configme</filename> and
-                        <filename>do_kernel_configcheck</filename> tasks to
-                        see the results of your changes.
-                        If you have more issues, you can deal with them as
-                        described in the previous step.
-                        </para></listitem>
-                </orderedlist>
-            </para>
-
-            <para>
-                Iteratively working through steps two through four eventually
-                yields a minimal, streamlined configuration file.
-                Once you have the best <filename>.config</filename>, you can
-                build the Linux Yocto kernel.
-            </para>
-        </section>
-    </section>
-
-    <section id='expanding-variables'>
-        <title>Expanding Variables</title>
-
-        <para>
-            Sometimes it is helpful to determine what a variable expands
-            to during a build.
-            You can do examine the values of variables by examining the
-            output of the <filename>bitbake -e</filename> command.
-            The output is long and is more easily managed in a text file,
-            which allows for easy searches:
-            <literallayout class='monospaced'>
-     $ bitbake -e virtual/kernel > <replaceable>some_text_file</replaceable>
-            </literallayout>
-            Within the text file, you can see exactly how each variable is
-            expanded and used by the OpenEmbedded build system.
-        </para>
-    </section>
-
-    <section id='working-with-a-dirty-kernel-version-string'>
-        <title>Working with a "Dirty" Kernel Version String</title>
-
-        <para>
-            If you build a kernel image and the version string has a
-            "+" or a "-dirty" at the end, uncommitted modifications exist
-            in the kernel's source directory.
-            Follow these steps to clean up the version string:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Discover the Uncommitted Changes:</emphasis>
-                    Go to the kernel's locally cloned Git repository
-                    (source directory) and use the following Git command
-                    to list the files that have been changed, added, or
-                    removed:
-                    <literallayout class='monospaced'>
-     $ git status
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Commit the Changes:</emphasis>
-                    You should commit those changes to the kernel source
-                    tree regardless of whether or not you will save,
-                    export, or use the changes:
-                    <literallayout class='monospaced'>
-     $ git add
-     $ git commit -s -a -m "getting rid of -dirty"
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Rebuild the Kernel Image:</emphasis>
-                    Once you commit the changes, rebuild the kernel.</para>
-
-                    <para>Depending on your particular kernel development
-                    workflow, the commands you use to rebuild the
-                    kernel might differ.
-                    For information on building the kernel image when
-                    using <filename>devtool</filename>, see the
-                    "<link linkend='using-devtool-to-patch-the-kernel'>Using <filename>devtool</filename> to Patch the Kernel</link>"
-                    section.
-                    For information on building the kernel image when
-                    using Bitbake, see the
-                    "<link linkend='using-traditional-kernel-development-to-patch-the-kernel'>Using Traditional Kernel Development to Patch the Kernel</link>"
-                    section.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id='working-with-your-own-sources'>
-        <title>Working With Your Own Sources</title>
-
-        <para>
-            If you cannot work with one of the Linux kernel
-            versions supported by existing linux-yocto recipes, you can
-            still make use of the Yocto Project Linux kernel tooling by
-            working with your own sources.
-            When you use your own sources, you will not be able to
-            leverage the existing kernel
-            <ulink url='&YOCTO_DOCS_REF_URL;#metadata'>Metadata</ulink> and
-            stabilization work of the linux-yocto sources.
-            However, you will be able to manage your own Metadata in the same
-            format as the linux-yocto sources.
-            Maintaining format compatibility facilitates converging with
-            linux-yocto on a future, mutually-supported kernel version.
-        </para>
-
-        <para>
-            To help you use your own sources, the Yocto Project provides a
-            linux-yocto custom recipe
-            (<filename>linux-yocto-custom.bb</filename>) that uses
-            <filename>kernel.org</filename> sources
-            and the Yocto Project Linux kernel tools for managing
-            kernel Metadata.
-            You can find this recipe in the
-            <filename>poky</filename> Git repository of the
-            Yocto Project <ulink url='&YOCTO_GIT_URL;'>Source Repository</ulink>
-            at:
-            <literallayout class="monospaced">
-     poky/meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb
-            </literallayout>
-        </para>
-
-        <para>
-            Here are some basic steps you can use to work with your own
-            sources:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Create a Copy of the Kernel Recipe:</emphasis>
-                    Copy the <filename>linux-yocto-custom.bb</filename>
-                    recipe to your layer and give it a meaningful name.
-                    The name should include the version of the Yocto Linux
-                    kernel you are using (e.g.
-                    <filename>linux-yocto-myproject_4.12.bb</filename>,
-                    where "4.12" is the base version of the Linux kernel
-                    with which you would be working).
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Create a Directory for Your Patches:</emphasis>
-                    In the same directory inside your layer, create a matching
-                    directory to store your patches and configuration files
-                    (e.g. <filename>linux-yocto-myproject</filename>).
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Ensure You Have Configurations:</emphasis>
-                    Make sure you have either a <filename>defconfig</filename>
-                    file or configuration fragment files in your layer.
-                    When you use the <filename>linux-yocto-custom.bb</filename>
-                    recipe, you must specify a configuration.
-                    If you do not have a <filename>defconfig</filename> file,
-                    you can run the following:
-                    <literallayout class='monospaced'>
-     $ make defconfig
-                    </literallayout>
-                    After running the command, copy the resulting
-                    <filename>.config</filename> file to the
-                    <filename>files</filename> directory in your layer
-                    as "defconfig" and then add it to the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                    variable in the recipe.</para>
-
-                    <para>Running the <filename>make defconfig</filename>
-                    command results in the default configuration for your
-                    architecture as defined by your kernel.
-                    However, no guarantee exists that this configuration is
-                    valid for your use case, or that your board will even boot.
-                    This is particularly true for non-x86 architectures.</para>
-
-                    <para>To use non-x86 <filename>defconfig</filename> files,
-                    you need to be more specific and find one that matches your
-                    board (i.e. for arm, you look in
-                    <filename>arch/arm/configs</filename> and use the one that
-                    is the best starting point for your board).
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Edit the Recipe:</emphasis>
-                    Edit the following variables in your recipe as appropriate
-                    for your project:
-                    <itemizedlist>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>:
-                            The <filename>SRC_URI</filename> should specify
-                            a Git repository that uses one of the supported Git
-                            fetcher protocols (i.e. <filename>file</filename>,
-                            <filename>git</filename>, <filename>http</filename>,
-                            and so forth).
-                            The <filename>SRC_URI</filename> variable should
-                            also specify either a <filename>defconfig</filename>
-                            file or some configuration fragment files.
-                            The skeleton recipe provides an example
-                            <filename>SRC_URI</filename> as a syntax reference.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-LINUX_VERSION'><filename>LINUX_VERSION</filename></ulink>:
-                            The Linux kernel version you are using (e.g.
-                            "4.12").
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-LINUX_VERSION_EXTENSION'><filename>LINUX_VERSION_EXTENSION</filename></ulink>:
-                            The Linux kernel
-                            <filename>CONFIG_LOCALVERSION</filename> that is
-                            compiled into the resulting kernel and visible
-                            through the <filename>uname</filename> command.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-SRCREV'><filename>SRCREV</filename></ulink>:
-                            The commit ID from which you want to build.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PR'><filename>PR</filename></ulink>:
-                            Treat this variable the same as you would in any
-                            other recipe.
-                            Increment the variable to indicate to the
-                            OpenEmbedded build system that the recipe has
-                            changed.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>:
-                            The default <filename>PV</filename> assignment is
-                            typically adequate.
-                            It combines the <filename>LINUX_VERSION</filename>
-                            with the Source Control Manager (SCM) revision
-                            as derived from the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-SRCPV'><filename>SRCPV</filename></ulink>
-                            variable.
-                            The combined results are a string with the
-                            following form:
-                            <literallayout class='monospaced'>
-     3.19.11+git1+68a635bf8dfb64b02263c1ac80c948647cc76d5f_1+218bd8d2022b9852c60d32f0d770931e3cf343e2
-                            </literallayout>
-                            While lengthy, the extra verbosity in
-                            <filename>PV</filename> helps ensure you are using
-                            the exact sources from which you intend to build.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-COMPATIBLE_MACHINE'><filename>COMPATIBLE_MACHINE</filename></ulink>:
-                            A list of the machines supported by your new recipe.
-                            This variable in the example recipe is set
-                            by default to a regular expression that matches
-                            only the empty string, "(^$)".
-                            This default setting triggers an explicit build
-                            failure.
-                            You must change it to match a list of the machines
-                            that your new recipe supports.
-                            For example, to support the
-                            <filename>qemux86</filename> and
-                            <filename>qemux86-64</filename> machines, use
-                            the following form:
-                            <literallayout class='monospaced'>
-     COMPATIBLE_MACHINE = "qemux86|qemux86-64"
-                            </literallayout>
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Customize Your Recipe as Needed:</emphasis>
-                    Provide further customizations to your recipe
-                    as needed just as you would customize an existing
-                    linux-yocto recipe.
-                    See the
-                    "<link linkend='modifying-an-existing-recipe'>Modifying an Existing Recipe</link>"
-                    section for information.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id='working-with-out-of-tree-modules'>
-        <title>Working with Out-of-Tree Modules</title>
-
-        <para>
-            This section describes steps to build out-of-tree modules on
-            your target and describes how to incorporate out-of-tree modules
-            in the build.
-        </para>
-
-        <section id='building-out-of-tree-modules-on-the-target'>
-            <title>Building Out-of-Tree Modules on the Target</title>
-
-            <para>
-                While the traditional Yocto Project development model would be
-                to include kernel modules as part of the normal build
-                process, you might find it useful to build modules on the
-                target.
-                This could be the case if your target system is capable
-                and powerful enough to handle the necessary compilation.
-                Before deciding to build on your target, however, you should
-                consider the benefits of using a proper cross-development
-                environment from your build host.
-            </para>
-
-            <para>
-                If you want to be able to build out-of-tree modules on
-                the target, there are some steps you need to take
-                on the target that is running your SDK image.
-                Briefly, the <filename>kernel-dev</filename> package
-                is installed by default on all
-                <filename>*.sdk</filename> images and the
-                <filename>kernel-devsrc</filename> package is installed
-                on many of the <filename>*.sdk</filename> images.
-                However, you need to create some scripts prior to
-                attempting to build the out-of-tree modules on the target
-                that is running that image.
-            </para>
-
-            <para>
-                Prior to attempting to build the out-of-tree modules,
-                you need to be on the target as root and you need to
-                change to the <filename>/usr/src/kernel</filename> directory.
-                Next, <filename>make</filename> the scripts:
-                <literallayout class='monospaced'>
-     # cd /usr/src/kernel
-     # make scripts
-                </literallayout>
-                Because all SDK image recipes include
-                <filename>dev-pkgs</filename>, the
-                <filename>kernel-dev</filename> packages will be installed
-                as part of the SDK image and the
-                <filename>kernel-devsrc</filename> packages will be installed
-                as part of applicable SDK images.
-                The SDK uses the scripts when building out-of-tree
-                modules.
-                Once you have switched to that directory and created the
-                scripts, you should be able to build your out-of-tree modules
-                on the target.
-            </para>
-        </section>
-
-        <section id='incorporating-out-of-tree-modules'>
-            <title>Incorporating Out-of-Tree Modules</title>
-
-            <para>
-                While it is always preferable to work with sources integrated
-                into the Linux kernel sources, if you need an external kernel
-                module, the <filename>hello-mod.bb</filename> recipe is
-                available as a template from which you can create your
-                own out-of-tree Linux kernel module recipe.
-            </para>
-
-            <para>
-                This template recipe is located in the
-                <filename>poky</filename> Git repository of the
-                Yocto Project <ulink url='&YOCTO_GIT_URL;'>Source Repository</ulink>
-                at:
-                <literallayout class="monospaced">
-     poky/meta-skeleton/recipes-kernel/hello-mod/hello-mod_0.1.bb
-                </literallayout>
-            </para>
-
-            <para>
-                To get started, copy this recipe to your layer and give it a
-                meaningful name (e.g. <filename>mymodule_1.0.bb</filename>).
-                In the same directory, create a new directory named
-                <filename>files</filename> where you can store any source files,
-                patches, or other files necessary for building
-                the module that do not come with the sources.
-                Finally, update the recipe as needed for the module.
-                Typically, you will need to set the following variables:
-                <itemizedlist>
-                    <listitem><para><ulink url='&YOCTO_DOCS_REF_URL;#var-DESCRIPTION'><filename>DESCRIPTION</filename></ulink>
-                        </para></listitem>
-                    <listitem><para><ulink url='&YOCTO_DOCS_REF_URL;#var-LICENSE'><filename>LICENSE*</filename></ulink>
-                        </para></listitem>
-                    <listitem><para><ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                        </para></listitem>
-                    <listitem><para><ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                Depending on the build system used by the module sources,
-                you might need to make some adjustments.
-                For example, a typical module <filename>Makefile</filename>
-                looks much like the one provided with the
-                <filename>hello-mod</filename> template:
-                <literallayout class='monospaced'>
-     obj-m := hello.o
-
-     SRC := $(shell pwd)
-
-     all:
-         $(MAKE) -C $(KERNEL_SRC) M=$(SRC)
-
-     modules_install:
-         $(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules_install
-     ...
-                </literallayout>
-            </para>
-
-            <para>
-                The important point to note here is the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KERNEL_SRC'><filename>KERNEL_SRC</filename></ulink>
-                variable.
-                The
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-module'><filename>module</filename></ulink>
-                class sets this variable and the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-KERNEL_PATH'><filename>KERNEL_PATH</filename></ulink>
-                variable to
-                <filename>${<ulink url='&YOCTO_DOCS_REF_URL;#var-STAGING_KERNEL_DIR'><filename>STAGING_KERNEL_DIR</filename></ulink>}</filename>
-                with the necessary Linux kernel build information to build
-                modules.
-                If your module <filename>Makefile</filename> uses a different
-                variable, you might want to override the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-compile'><filename>do_compile</filename></ulink>
-                step, or create a patch to
-                the <filename>Makefile</filename> to work with the more typical
-                <filename>KERNEL_SRC</filename> or
-                <filename>KERNEL_PATH</filename> variables.
-            </para>
-
-            <para>
-                After you have prepared your recipe, you will likely want to
-                include the module in your images.
-                To do this, see the documentation for the following variables in
-                the Yocto Project Reference Manual and set one of them
-                appropriately for your machine configuration file:
-                <itemizedlist>
-                    <listitem><para><ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_ESSENTIAL_EXTRA_RDEPENDS'><filename>MACHINE_ESSENTIAL_EXTRA_RDEPENDS</filename></ulink>
-                        </para></listitem>
-                    <listitem><para><ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS'><filename>MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</filename></ulink>
-                        </para></listitem>
-                    <listitem><para><ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_EXTRA_RDEPENDS'><filename>MACHINE_EXTRA_RDEPENDS</filename></ulink>
-                        </para></listitem>
-                    <listitem><para><ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_EXTRA_RRECOMMENDS'><filename>MACHINE_EXTRA_RRECOMMENDS</filename></ulink>
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                Modules are often not required for boot and can be excluded from
-                certain build configurations.
-                The following allows for the most flexibility:
-                <literallayout class='monospaced'>
-     MACHINE_EXTRA_RRECOMMENDS += "kernel-module-mymodule"
-                </literallayout>
-                The value is derived by appending the module filename without
-                the <filename>.ko</filename> extension to the string
-                "kernel-module-".
-            </para>
-
-            <para>
-                Because the variable is
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-RRECOMMENDS'><filename>RRECOMMENDS</filename></ulink>
-                and not a
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-RDEPENDS'><filename>RDEPENDS</filename></ulink>
-                variable, the build will not fail if this module is not
-                available to include in the image.
-            </para>
-        </section>
-    </section>
-
-
-    <section id='inspecting-changes-and-commits'>
-        <title>Inspecting Changes and Commits</title>
-
-        <para>
-            A common question when working with a kernel is:
-            "What changes have been applied to this tree?"
-            Rather than using "grep" across directories to see what has
-            changed, you can use Git to inspect or search the kernel tree.
-            Using Git is an efficient way to see what has changed in the tree.
-        </para>
-
-        <section id='what-changed-in-a-kernel'>
-            <title>What Changed in a Kernel?</title>
-
-            <para>
-                Following are a few examples that show how to use Git
-                commands to examine changes.
-                These examples are by no means the only way to see changes.
-                <note>
-                    In the following examples, unless you provide a commit
-                    range, <filename>kernel.org</filename> history is blended
-                    with Yocto Project kernel changes.
-                    You can form ranges by using branch names from the
-                    kernel tree as the upper and lower commit markers with
-                    the Git commands.
-                    You can see the branch names through the web interface
-                    to the Yocto Project source repositories at
-                    <ulink url='&YOCTO_GIT_URL;'></ulink>.
-                </note>
-                To see a full range of the changes, use the
-                <filename>git whatchanged</filename> command and specify a
-                commit range for the branch
-                (<replaceable>commit</replaceable><filename>..</filename><replaceable>commit</replaceable>).
-            </para>
-
-            <para>
-                Here is an example that looks at what has changed in the
-                <filename>emenlow</filename> branch of the
-                <filename>linux-yocto-3.19</filename> kernel.
-                The lower commit range is the commit associated with the
-                <filename>standard/base</filename> branch, while
-                the upper commit range is the commit associated with the
-                <filename>standard/emenlow</filename> branch.
-                <literallayout class='monospaced'>
-     $ git whatchanged origin/standard/base..origin/standard/emenlow
-                </literallayout>
-            </para>
-
-            <para>
-                To see short, one line summaries of changes use the
-                <filename>git log</filename> command:
-                <literallayout class='monospaced'>
-     $ git log --oneline origin/standard/base..origin/standard/emenlow
-                </literallayout>
-            </para>
-
-            <para>
-                Use this command to see code differences for the changes:
-                <literallayout class='monospaced'>
-     $ git diff origin/standard/base..origin/standard/emenlow
-                </literallayout>
-            </para>
-
-            <para>
-                Use this command to see the commit log messages and the
-                text differences:
-                <literallayout class='monospaced'>
-     $ git show origin/standard/base..origin/standard/emenlow
-                </literallayout>
-            </para>
-
-            <para>
-                Use this command to create individual patches for
-                each change.
-                Here is an example that that creates patch files for each
-                commit and places them in your <filename>Documents</filename>
-                directory:
-                <literallayout class='monospaced'>
-     $ git format-patch -o $HOME/Documents origin/standard/base..origin/standard/emenlow
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='showing-a-particular-feature-or-branch-change'>
-            <title>Showing a Particular Feature or Branch Change</title>
-
-            <para>
-                Tags in the Yocto Project kernel tree divide changes for
-                significant features or branches.
-                The <filename>git show</filename>&nbsp;<replaceable>tag</replaceable>
-                command shows changes based on a tag.
-                Here is an example that shows <filename>systemtap</filename>
-                changes:
-                <literallayout class='monospaced'>
-     $ git show systemtap
-                </literallayout>
-                You can use the
-                <filename>git branch --contains</filename>&nbsp;<replaceable>tag</replaceable>
-                command to show the branches that contain a particular feature.
-                This command shows the branches that contain the
-                <filename>systemtap</filename> feature:
-                <literallayout class='monospaced'>
-     $ git branch --contains systemtap
-                </literallayout>
-            </para>
-        </section>
-    </section>
-
-    <section id='adding-recipe-space-kernel-features'>
-        <title>Adding Recipe-Space Kernel Features</title>
-
-        <para>
-            You can add kernel features in the
-            <link linkend='recipe-space-metadata'>recipe-space</link> by
-            using the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-KERNEL_FEATURES'><filename>KERNEL_FEATURES</filename></ulink>
-            variable and by specifying the feature's <filename>.scc</filename>
-            file path in the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-            statement.
-            When you add features using this method, the OpenEmbedded build
-            system checks to be sure the features are present.
-            If the features are not present, the build stops.
-            Kernel features are the last elements processed for configuring
-            and patching the kernel.
-            Therefore, adding features in this manner is a way
-            to enforce specific features are present and enabled
-            without needing to do a full audit of any other layer's additions
-            to the <filename>SRC_URI</filename> statement.
-        </para>
-
-        <para>
-            You add a kernel feature by providing the feature as part of the
-            <filename>KERNEL_FEATURES</filename> variable and by providing the
-            path to the feature's <filename>.scc</filename> file, which is
-            relative to the root of the kernel Metadata.
-            The OpenEmbedded build system searches all forms of kernel
-            Metadata on the <filename>SRC_URI</filename> statement regardless
-            of whether the Metadata is in the "kernel-cache", system kernel
-            Metadata, or a recipe-space Metadata (i.e. part of the kernel
-            recipe).
-            See the
-            "<link linkend='kernel-metadata-location'>Kernel Metadata Location</link>"
-            section for additional information.
-        </para>
-
-        <para>
-            When you specify the feature's <filename>.scc</filename> file
-            on the <filename>SRC_URI</filename> statement, the OpenEmbedded
-            build system adds the directory of that
-            <filename>.scc</filename> file along with all its subdirectories
-            to the kernel feature search path.
-            Because subdirectories are searched, you can reference a single
-            <filename>.scc</filename> file in the
-            <filename>SRC_URI</filename> statement to reference multiple kernel
-            features.
-        </para>
-
-        <para>
-            Consider the following example that adds the "test.scc" feature
-            to the build.
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Create the Feature File:</emphasis>
-                    Create a <filename>.scc</filename> file and locate it
-                    just as you would any other patch file,
-                    <filename>.cfg</filename> file, or fetcher item
-                    you specify in the <filename>SRC_URI</filename>
-                    statement.
-                    <note><title>Notes</title>
-                        <itemizedlist>
-                            <listitem><para>
-                                You must add the directory of the
-                                <filename>.scc</filename> file to the fetcher's
-                                search path in the same manner as you would
-                                add a <filename>.patch</filename> file.
-                                </para></listitem>
-                            <listitem><para>
-                                You can create additional
-                                <filename>.scc</filename> files beneath the
-                                directory that contains the file you are
-                                adding.
-                                All subdirectories are searched during the
-                                build as potential feature directories.
-                                </para></listitem>
-                        </itemizedlist>
-                    </note>
-                    Continuing with the example, suppose the "test.scc"
-                    feature you are adding has a
-                    <filename>test.scc</filename> file in the following
-                    directory:
-                    <literallayout class='monospaced'>
-     <replaceable>my_recipe</replaceable>
-        |
-        +-linux-yocto
-           |
-           +-test.cfg
-           +-test.scc
-                    </literallayout>
-                    In this example, the <filename>linux-yocto</filename>
-                    directory has both the feature
-                    <filename>test.scc</filename> file and a similarly
-                    named configuration fragment file
-                    <filename>test.cfg</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Add the Feature File to <filename>SRC_URI</filename>:</emphasis>
-                    Add the <filename>.scc</filename> file to the
-                    recipe's <filename>SRC_URI</filename> statement:
-                    <literallayout class='monospaced'>
-     SRC_URI_append = " file://test.scc"
-                    </literallayout>
-                    The leading space before the path is important as the
-                    path is appended to the existing path.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Specify the Feature as a Kernel Feature:</emphasis>
-                    Use the <filename>KERNEL_FEATURES</filename> statement
-                    to specify the feature as a kernel feature:
-                    <literallayout class='monospaced'>
-     KERNEL_FEATURES_append = " test.scc"
-                    </literallayout>
-                    The OpenEmbedded build system processes the kernel feature
-                    when it builds the kernel.
-                    <note>
-                        If other features are contained below "test.scc",
-                        then their directories are relative to the directory
-                        containing the <filename>test.scc</filename> file.
-                    </note>
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/kernel-dev/kernel-dev-concepts-appx.rst b/poky/documentation/kernel-dev/kernel-dev-concepts-appx.rst
index 04cb117..5b6ebef 100644
--- a/poky/documentation/kernel-dev/kernel-dev-concepts-appx.rst
+++ b/poky/documentation/kernel-dev/kernel-dev-concepts-appx.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ************************
 Advanced Kernel Concepts
diff --git a/poky/documentation/kernel-dev/kernel-dev-concepts-appx.xml b/poky/documentation/kernel-dev/kernel-dev-concepts-appx.xml
deleted file mode 100644
index bf0c525..0000000
--- a/poky/documentation/kernel-dev/kernel-dev-concepts-appx.xml
+++ /dev/null
@@ -1,622 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<appendix id='kernel-dev-concepts-appx'>
-<title>Advanced Kernel Concepts</title>
-
-    <section id='kernel-big-picture'>
-        <title>Yocto Project Kernel Development and Maintenance</title>
-
-        <para>
-            Kernels available through the Yocto Project (Yocto Linux kernels),
-            like other kernels, are based off the Linux kernel releases from
-            <ulink url='http://www.kernel.org'></ulink>.
-            At the beginning of a major Linux kernel development cycle, the
-            Yocto Project team chooses a Linux kernel based on factors such as
-            release timing, the anticipated release timing of final upstream
-            <filename>kernel.org</filename> versions, and Yocto Project
-            feature requirements.
-            Typically, the Linux kernel chosen is in the final stages of
-            development by the Linux community.
-            In other words, the Linux kernel is in the release candidate
-            or "rc" phase and has yet to reach final release.
-            But, by being in the final stages of external development, the
-            team knows that the <filename>kernel.org</filename> final release
-            will clearly be within the early stages of the Yocto Project
-            development window.
-        </para>
-
-        <para>
-            This balance allows the Yocto Project team to deliver the most
-            up-to-date Yocto Linux kernel possible, while still ensuring that
-            the team has a stable official release for the baseline Linux
-            kernel version.
-        </para>
-
-        <para>
-            As implied earlier, the ultimate source for Yocto Linux kernels
-            are released kernels from <filename>kernel.org</filename>.
-            In addition to a foundational kernel from
-            <filename>kernel.org</filename>, the available Yocto Linux kernels
-            contain a mix of important new mainline developments, non-mainline
-            developments (when no alternative exists), Board Support Package
-            (BSP) developments, and custom features.
-            These additions result in a commercially released Yocto
-            Project Linux kernel that caters to specific embedded designer
-            needs for targeted hardware.
-        </para>
-
-        <para>
-            You can find a web interface to the Yocto Linux kernels in the
-            <ulink url='&YOCTO_DOCS_OM_URL;#source-repositories'>Source Repositories</ulink>
-            at
-            <ulink url='&YOCTO_GIT_URL;'></ulink>.
-            If you look at the interface, you will see to the left a
-            grouping of Git repositories titled "Yocto Linux Kernel".
-            Within this group, you will find several Linux Yocto kernels
-            developed and included with Yocto Project releases:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>linux-yocto-4.1</filename>:</emphasis>
-                    The stable Yocto Project kernel to use with the Yocto
-                    Project Release 2.0.
-                    This kernel is based on the Linux 4.1 released kernel.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>linux-yocto-4.4</filename>:</emphasis>
-                    The stable Yocto Project kernel to use with the Yocto
-                    Project Release 2.1.
-                    This kernel is based on the Linux 4.4 released kernel.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>linux-yocto-4.6</filename>:</emphasis>
-                    A temporary kernel that is not tied to any Yocto Project
-                    release.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>linux-yocto-4.8</filename>:</emphasis>
-                    The stable yocto Project kernel to use with the Yocto
-                    Project Release 2.2.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>linux-yocto-4.9</filename>:</emphasis>
-                    The stable Yocto Project kernel to use with the Yocto
-                    Project Release 2.3.
-                    This kernel is based on the Linux 4.9 released kernel.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>linux-yocto-4.10</filename>:</emphasis>
-                    The default stable Yocto Project kernel to use with the
-                    Yocto Project Release 2.3.
-                    This kernel is based on the Linux 4.10 released kernel.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>linux-yocto-4.12</filename>:</emphasis>
-                    The default stable Yocto Project kernel to use with the
-                    Yocto Project Release 2.4.
-                    This kernel is based on the Linux 4.12 released kernel.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>yocto-kernel-cache</filename>:</emphasis>
-                    The <filename>linux-yocto-cache</filename> contains
-                    patches and configurations for the linux-yocto kernel
-                    tree.
-                    This repository is useful when working on the linux-yocto
-                    kernel.
-                    For more information on this "Advanced Kernel Metadata",
-                    see the
-                    "<link linkend='kernel-dev-advanced'>Working With Advanced Metadata (<filename>yocto-kernel-cache</filename>)</link>"
-                    Chapter.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>linux-yocto-dev</filename>:</emphasis>
-                    A development kernel based on the latest upstream release
-                    candidate available.
-                    </para></listitem>
-            </itemizedlist>
-            <note><title>Notes</title>
-                Long Term Support Initiative (LTSI) for Yocto Linux
-                kernels is as follows:
-                <itemizedlist>
-                    <listitem><para>
-                        For Yocto Project releases 1.7, 1.8, and 2.0,
-                        the LTSI kernel is
-                        <filename>linux-yocto-3.14</filename>.
-                        </para></listitem>
-                    <listitem><para>
-                        For Yocto Project releases 2.1, 2.2, and 2.3,
-                        the LTSI kernel is <filename>linux-yocto-4.1</filename>.
-                        </para></listitem>
-                    <listitem><para>
-                        For Yocto Project release 2.4, the LTSI kernel is
-                        <filename>linux-yocto-4.9</filename>
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>linux-yocto-4.4</filename> is an LTS
-                        kernel.
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-        </para>
-
-        <para>
-            Once a Yocto Linux kernel is officially released, the Yocto
-            Project team goes into their next development cycle, or upward
-            revision (uprev) cycle, while still continuing maintenance on the
-            released kernel.
-            It is important to note that the most sustainable and stable way
-            to include feature development upstream is through a kernel uprev
-            process.
-            Back-porting hundreds of individual fixes and minor features from
-            various kernel versions is not sustainable and can easily
-            compromise quality.
-        </para>
-
-        <para>
-            During the uprev cycle, the Yocto Project team uses an ongoing
-            analysis of Linux kernel development, BSP support, and release
-            timing to select the best possible <filename>kernel.org</filename>
-            Linux kernel version on which to base subsequent Yocto Linux
-            kernel development.
-            The team continually monitors Linux community kernel development
-            to look for significant features of interest.
-            The team does consider back-porting large features if they have a
-            significant advantage.
-            User or community demand can also trigger a back-port or creation
-            of new functionality in the Yocto Project baseline kernel during
-            the uprev cycle.
-        </para>
-
-        <para>
-            Generally speaking, every new Linux kernel both adds features and
-            introduces new bugs.
-            These consequences are the basic properties of upstream
-            Linux kernel development and are managed by the Yocto Project
-            team's Yocto Linux kernel development strategy.
-            It is the Yocto Project team's policy to not back-port minor
-            features to the released Yocto Linux kernel.
-            They only consider back-porting significant technological
-            jumps &dash; and, that is done after a complete gap analysis.
-            The reason for this policy is that back-porting any small to
-            medium sized change from an evolving Linux kernel can easily
-            create mismatches, incompatibilities and very subtle errors.
-        </para>
-
-        <para>
-            The policies described in this section result in both a stable
-            and a cutting edge Yocto Linux kernel that mixes forward ports of
-            existing Linux kernel features and significant and critical new
-            functionality.
-            Forward porting Linux kernel functionality into the Yocto Linux
-            kernels available through the Yocto Project can be thought of as
-            a "micro uprev."
-            The many "micro uprevs" produce a Yocto Linux kernel version with
-            a mix of important new mainline, non-mainline, BSP developments
-            and feature integrations.
-            This Yocto Linux kernel gives insight into new features and
-            allows focused amounts of testing to be done on the kernel,
-            which prevents surprises when selecting the next major uprev.
-            The quality of these cutting edge Yocto Linux kernels is evolving
-            and the kernels are used in leading edge feature and BSP
-            development.
-        </para>
-    </section>
-
-    <section id='yocto-linux-kernel-architecture-and-branching-strategies'>
-        <title>Yocto Linux Kernel Architecture and Branching Strategies</title>
-
-        <para>
-            As mentioned earlier, a key goal of the Yocto Project is
-            to present the developer with a kernel that has a clear and
-            continuous history that is visible to the user.
-            The architecture and mechanisms, in particular the branching
-            strategies, used achieve that goal in a manner similar to
-            upstream Linux kernel development in
-            <filename>kernel.org</filename>.
-        </para>
-
-        <para>
-            You can think of a Yocto Linux kernel as consisting of a
-            baseline Linux kernel with added features logically structured
-            on top of the baseline.
-            The features are tagged and organized by way of a branching
-            strategy implemented by the Yocto Project team using the
-            Source Code Manager (SCM) Git.
-            <note><title>Notes</title>
-                <itemizedlist>
-                    <listitem><para>
-                        Git is the obvious SCM for meeting the Yocto Linux
-                        kernel organizational and structural goals described
-                        in this section.
-                        Not only is Git the SCM for Linux kernel development in
-                        <filename>kernel.org</filename> but, Git continues to
-                         grow in popularity and supports many different work
-                         flows, front-ends and management techniques.
-                        </para></listitem>
-                    <listitem><para>
-                        You can find documentation on Git at
-                        <ulink url='http://git-scm.com/documentation'></ulink>.
-                        You can also get an introduction to Git as it
-                        applies to the Yocto Project in the
-                        "<ulink url='&YOCTO_DOCS_OM_URL;#git'>Git</ulink>"
-                        section in the Yocto Project Overview and Concepts
-                        Manual.
-                        The latter reference provides an overview of
-                        Git and presents a minimal set of Git commands
-                        that allows you to be functional using Git.
-                        You can use as much, or as little, of what Git
-                        has to offer to accomplish what you need for your
-                        project.
-                        You do not have to be a "Git Expert" in order to
-                        use it with the Yocto Project.
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-        </para>
-
-        <para>
-            Using Git's tagging and branching features, the Yocto Project
-            team creates kernel branches at points where functionality is
-            no longer shared and thus, needs to be isolated.
-            For example, board-specific incompatibilities would require
-            different functionality and would require a branch to
-            separate the features.
-            Likewise, for specific kernel features, the same branching
-            strategy is used.
-        </para>
-
-        <para>
-            This "tree-like" architecture results in a structure that has
-            features organized to be specific for particular functionality,
-            single kernel types, or a subset of kernel types.
-            Thus, the user has the ability to see the added features and the
-            commits that make up those features.
-            In addition to being able to see added features, the user
-            can also view the history of what made up the baseline
-            Linux kernel.
-        </para>
-
-        <para>
-            Another consequence of this strategy results in not having to
-            store the same feature twice internally in the tree.
-            Rather, the kernel team stores the unique differences required
-            to apply the feature onto the kernel type in question.
-            <note>
-                The Yocto Project team strives to place features in the tree
-                such that features can be shared by all boards and kernel
-                types where possible.
-                However, during development cycles or when large features
-                are merged, the team cannot always follow this practice.
-                In those cases, the team uses isolated branches to merge
-                features.
-            </note>
-        </para>
-
-        <para>
-            BSP-specific code additions are handled in a similar manner to
-            kernel-specific additions.
-            Some BSPs only make sense given certain kernel types.
-            So, for these types, the team creates branches off the end
-            of that kernel type for all of the BSPs that are supported on
-            that kernel type.
-            From the perspective of the tools that create the BSP branch,
-            the BSP is really no different than a feature.
-            Consequently, the same branching strategy applies to BSPs as
-            it does to kernel features.
-            So again, rather than store the BSP twice, the team only
-            stores the unique differences for the BSP across the supported
-            multiple kernels.
-        </para>
-
-        <para>
-            While this strategy can result in a tree with a significant number
-            of branches, it is important to realize that from the developer's
-            point of view, there is a linear path that travels from the
-            baseline <filename>kernel.org</filename>, through a select
-            group of features and ends with their BSP-specific commits.
-            In other words, the divisions of the kernel are transparent and
-            are not relevant to the developer on a day-to-day basis.
-            From the developer's perspective, this path is the "master" branch
-            in Git terms.
-            The developer does not need to be aware of the existence of any
-            other branches at all.
-            Of course, value exists in the having these branches in the tree,
-            should a person decide to explore them.
-            For example, a comparison between two BSPs at either the commit
-            level or at the line-by-line code <filename>diff</filename> level
-            is now a trivial operation.
-        </para>
-
-        <para>
-            The following illustration shows the conceptual Yocto
-            Linux kernel.
-            <imagedata fileref="figures/kernel-architecture-overview.png" width="6in" depth="7in" align="center" scale="100" />
-        </para>
-
-        <para>
-            In the illustration, the "Kernel.org Branch Point" marks the
-            specific spot (or Linux kernel release) from which the
-            Yocto Linux kernel is created.
-            From this point forward in the tree, features and differences
-            are organized and tagged.
-        </para>
-
-        <para>
-            The "Yocto Project Baseline Kernel" contains functionality that
-            is common to every kernel type and BSP that is organized
-            further along in the tree.
-            Placing these common features in the tree this way means
-            features do not have to be duplicated along individual
-            branches of the tree structure.
-        </para>
-
-        <para>
-            From the "Yocto Project Baseline Kernel", branch points represent
-            specific functionality for individual Board Support Packages
-            (BSPs) as well as real-time kernels.
-            The illustration represents this through three BSP-specific
-            branches and a real-time kernel branch.
-            Each branch represents some unique functionality for the BSP
-            or for a real-time Yocto Linux kernel.
-        </para>
-
-        <para>
-            In this example structure, the "Real-time (rt) Kernel" branch has
-            common features for all real-time Yocto Linux kernels and
-            contains more branches for individual BSP-specific real-time
-            kernels.
-            The illustration shows three branches as an example.
-            Each branch points the way to specific, unique features for a
-            respective real-time kernel as they apply to a given BSP.
-        </para>
-
-        <para>
-            The resulting tree structure presents a clear path of markers
-            (or branches) to the developer that, for all practical
-            purposes, is the Yocto Linux kernel needed for any given set of
-            requirements.
-            <note>
-                Keep in mind the figure does not take into account all the
-                supported Yocto Linux kernels, but rather shows a single
-                generic kernel just for conceptual purposes.
-                Also keep in mind that this structure represents the Yocto
-                Project
-                <ulink url='&YOCTO_DOCS_OM_URL;#source-repositories'>Source Repositories</ulink>
-                that are either pulled from during the build or established
-                on the host development system prior to the build by either
-                cloning a particular kernel's Git repository or by
-                downloading and unpacking a tarball.
-            </note>
-        </para>
-
-        <para>
-            Working with the kernel as a structured tree follows recognized
-            community best practices.
-            In particular, the kernel as shipped with the product, should be
-            considered an "upstream source" and viewed as a series of
-            historical and documented modifications (commits).
-            These modifications represent the development and stabilization
-            done by the Yocto Project kernel development team.
-        </para>
-
-        <para>
-            Because commits only change at significant release points in the
-            product life cycle, developers can work on a branch created
-            from the last relevant commit in the shipped Yocto Project Linux
-            kernel.
-            As mentioned previously, the structure is transparent to the
-            developer because the kernel tree is left in this state after
-            cloning and building the kernel.
-        </para>
-    </section>
-
-    <section id='kernel-build-file-hierarchy'>
-        <title>Kernel Build File Hierarchy</title>
-
-        <para>
-            Upstream storage of all the available kernel source code is
-            one thing, while representing and using the code on your host
-            development system is another.
-            Conceptually, you can think of the kernel source repositories
-            as all the source files necessary for all the supported
-            Yocto Linux kernels.
-            As a developer, you are just interested in the source files
-            for the kernel on which you are working.
-            And, furthermore, you need them available on your host system.
-        </para>
-
-        <para>
-            Kernel source code is available on your host system several
-            different ways:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis>Files Accessed While using <filename>devtool</filename>:</emphasis>
-                    <filename>devtool</filename>, which is available with the
-                    Yocto Project, is the preferred method by which to
-                    modify the kernel.
-                    See the
-                    "<link linkend='kernel-modification-workflow'>Kernel Modification Workflow</link>"
-                    section.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Cloned Repository:</emphasis>
-                    If you are working in the kernel all the time, you probably
-                    would want to set up your own local Git repository of the
-                    Yocto Linux kernel tree.
-                    For information on how to clone a Yocto Linux kernel
-                    Git repository, see the
-                    "<link linkend='preparing-the-build-host-to-work-on-the-kernel'>Preparing the Build Host to Work on the Kernel</link>"
-                    section.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Temporary Source Files from a Build:</emphasis>
-                    If you just need to make some patches to the kernel using
-                    a traditional BitBake workflow (i.e. not using the
-                    <filename>devtool</filename>), you can access temporary
-                    kernel source files that were extracted and used during
-                    a kernel build.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            The temporary kernel source files resulting from a build using
-            BitBake have a particular hierarchy.
-            When you build the kernel on your development system, all files
-            needed for the build are taken from the source repositories
-            pointed to by the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-            variable and gathered in a temporary work area where they are
-            subsequently used to create the unique kernel.
-            Thus, in a sense, the process constructs a local source tree
-            specific to your kernel from which to generate the new kernel
-            image.
-        </para>
-
-        <para>
-            The following figure shows the temporary file structure
-            created on your host system when you build the kernel using
-            Bitbake.
-            This
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-            contains all the source files used during the build.
-            <imagedata fileref="figures/kernel-overview-2-generic.png"
-                width="6in" depth="5in" align="center" scale="100" />
-        </para>
-
-        <para>
-            Again, for additional information on the Yocto Project kernel's
-            architecture and its branching strategy, see the
-            "<link linkend='yocto-linux-kernel-architecture-and-branching-strategies'>Yocto Linux Kernel Architecture and Branching Strategies</link>"
-            section.
-            You can also reference the
-            "<link linkend='using-devtool-to-patch-the-kernel'>Using <filename>devtool</filename> to Patch the Kernel</link>"
-            and
-            "<link linkend='using-traditional-kernel-development-to-patch-the-kernel'>Using Traditional Kernel Development to Patch the Kernel</link>"
-            sections for detailed example that modifies the kernel.
-        </para>
-    </section>
-
-    <section id='determining-hardware-and-non-hardware-features-for-the-kernel-configuration-audit-phase'>
-        <title>Determining Hardware and Non-Hardware Features for the Kernel Configuration Audit Phase</title>
-
-        <para>
-            This section describes part of the kernel configuration audit
-            phase that most developers can ignore.
-            For general information on kernel configuration including
-            <filename>menuconfig</filename>, <filename>defconfig</filename>
-            files, and configuration fragments, see the
-            "<link linkend='configuring-the-kernel'>Configuring the Kernel</link>"
-            section.
-        </para>
-
-        <para>
-            During this part of the audit phase, the contents of the final
-            <filename>.config</filename> file are compared against the
-            fragments specified by the system.
-            These fragments can be system fragments, distro fragments,
-            or user-specified configuration elements.
-            Regardless of their origin, the OpenEmbedded build system
-            warns the user if a specific option is not included in the
-            final kernel configuration.
-        </para>
-
-        <para>
-            By default, in order to not overwhelm the user with
-            configuration warnings, the system only reports missing
-            "hardware" options as they could result in a boot
-            failure or indicate that important hardware is not available.
-        </para>
-
-        <para>
-            To determine whether or not a given option is "hardware" or
-            "non-hardware", the kernel Metadata in
-            <filename>yocto-kernel-cache</filename> contains files that
-            classify individual or groups of options as either hardware
-            or non-hardware.
-            To better show this, consider a situation where the
-            <filename>yocto-kernel-cache</filename> contains the following
-            files:
-            <literallayout class='monospaced'>
-     yocto-kernel-cache/features/drm-psb/hardware.cfg
-     yocto-kernel-cache/features/kgdb/hardware.cfg
-     yocto-kernel-cache/ktypes/base/hardware.cfg
-     yocto-kernel-cache/bsp/mti-malta32/hardware.cfg
-     yocto-kernel-cache/bsp/qemu-ppc32/hardware.cfg
-     yocto-kernel-cache/bsp/qemuarma9/hardware.cfg
-     yocto-kernel-cache/bsp/mti-malta64/hardware.cfg
-     yocto-kernel-cache/bsp/arm-versatile-926ejs/hardware.cfg
-     yocto-kernel-cache/bsp/common-pc/hardware.cfg
-     yocto-kernel-cache/bsp/common-pc-64/hardware.cfg
-     yocto-kernel-cache/features/rfkill/non-hardware.cfg
-     yocto-kernel-cache/ktypes/base/non-hardware.cfg
-     yocto-kernel-cache/features/aufs/non-hardware.kcf
-     yocto-kernel-cache/features/ocf/non-hardware.kcf
-     yocto-kernel-cache/ktypes/base/non-hardware.kcf
-     yocto-kernel-cache/ktypes/base/hardware.kcf
-     yocto-kernel-cache/bsp/qemu-ppc32/hardware.kcf
-            </literallayout>
-            The following list provides explanations for the various
-            files:
-            <itemizedlist>
-                <listitem><para>
-                    <filename>hardware.kcf</filename>:
-                    Specifies a list of kernel Kconfig files that contain
-                    hardware options only.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>non-hardware.kcf</filename>:
-                    Specifies a list of kernel Kconfig files that contain
-                    non-hardware options only.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>hardware.cfg</filename>:
-                    Specifies a list of kernel <filename>CONFIG_</filename>
-                    options that are hardware, regardless of whether or not
-                    they are within a Kconfig file specified by a hardware
-                    or non-hardware Kconfig file (i.e.
-                    <filename>hardware.kcf</filename> or
-                    <filename>non-hardware.kcf</filename>).
-                    </para></listitem>
-                <listitem><para>
-                    <filename>non-hardware.cfg</filename>:
-                    Specifies a list of kernel <filename>CONFIG_</filename>
-                    options that are not hardware, regardless of whether or
-                    not they are within a Kconfig file specified by a
-                    hardware or non-hardware Kconfig file (i.e.
-                    <filename>hardware.kcf</filename> or
-                    <filename>non-hardware.kcf</filename>).
-                    </para></listitem>
-            </itemizedlist>
-            Here is a specific example using the
-            <filename>kernel-cache/bsp/mti-malta32/hardware.cfg</filename>:
-            <literallayout class='monospaced'>
-     CONFIG_SERIAL_8250
-     CONFIG_SERIAL_8250_CONSOLE
-     CONFIG_SERIAL_8250_NR_UARTS
-     CONFIG_SERIAL_8250_PCI
-     CONFIG_SERIAL_CORE
-     CONFIG_SERIAL_CORE_CONSOLE
-     CONFIG_VGA_ARB
-            </literallayout>
-            The kernel configuration audit automatically detects these
-            files (hence the names must be exactly the ones discussed here),
-            and uses them as inputs when generating warnings about the
-            final <filename>.config</filename> file.
-        </para>
-
-        <para>
-            A user-specified kernel Metadata repository, or recipe space
-            feature, can use these same files to classify options that are
-            found within its <filename>.cfg</filename> files as hardware
-            or non-hardware, to prevent the OpenEmbedded build system from
-            producing an error or warning when an option is not in the
-            final <filename>.config</filename> file.
-        </para>
-    </section>
-</appendix>
-<!--
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-  <xsl:import href="../template/1.76.1/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-  <xsl:import href="http://docbook.sourceforge.net/release/xsl/1.76.1/xhtml/docbook.xsl" />
-
--->
-
-  <xsl:include href="../template/permalinks.xsl"/>
-  <xsl:include href="../template/section.title.xsl"/>
-  <xsl:include href="../template/component.title.xsl"/>
-  <xsl:include href="../template/division.title.xsl"/>
-  <xsl:include href="../template/formal.object.heading.xsl"/>
-
-  <xsl:param name="html.stylesheet" select="'kernel-dev-style.css'" />
-  <xsl:param name="chapter.autolabel" select="1" />
-  <xsl:param name="appendix.autolabel">A</xsl:param>
-  <xsl:param name="section.autolabel" select="1" />
-  <xsl:param name="section.label.includes.component.label" select="1" />
-
-</xsl:stylesheet>
diff --git a/poky/documentation/kernel-dev/kernel-dev-faq.rst b/poky/documentation/kernel-dev/kernel-dev-faq.rst
index b5e6a84..70bf4a2 100644
--- a/poky/documentation/kernel-dev/kernel-dev-faq.rst
+++ b/poky/documentation/kernel-dev/kernel-dev-faq.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 **********************
 Kernel Development FAQ
diff --git a/poky/documentation/kernel-dev/kernel-dev-faq.xml b/poky/documentation/kernel-dev/kernel-dev-faq.xml
deleted file mode 100644
index d76f0a4..0000000
--- a/poky/documentation/kernel-dev/kernel-dev-faq.xml
+++ /dev/null
@@ -1,143 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<appendix id='kernel-dev-faq'>
-<title>Kernel Development FAQ</title>
-
-<section id='kernel-dev-faq-section'>
-    <title>Common Questions and Solutions</title>
-
-    <para>
-        The following lists some solutions for common questions.
-
-
-        <qandaset>
-            <qandaentry>
-                <question>
-                    <para>
-                        How do I use my own Linux kernel <filename>.config</filename>
-                        file?
-                    </para>
-                </question>
-                <answer>
-            <para>
-                        Refer to the "<link linkend='changing-the-configuration'>Changing the Configuration</link>"
-                        section for information.
-                    </para>
-                </answer>
-            </qandaentry>
-
-            <qandaentry>
-                <question>
-                    <para>
-                        How do I create configuration fragments?
-                    </para>
-                </question>
-                <answer>
-                    <para>
-                        Refer to the
-                        "<link linkend='creating-config-fragments'>Creating Configuration Fragments</link>"
-                        section for information.
-                    </para>
-                </answer>
-            </qandaentry>
-
-            <qandaentry>
-                <question>
-                    <para>
-                        How do I use my own Linux kernel sources?
-                    </para>
-                </question>
-                <answer>
-                    <para>
-                        Refer to the "<link linkend='working-with-your-own-sources'>Working With Your Own Sources</link>"
-                        section for information.
-                    </para>
-                </answer>
-            </qandaentry>
-
-            <qandaentry>
-                <question>
-                    <para>
-                        How do I install/not-install the kernel image on the rootfs?
-                    </para>
-                </question>
-                <answer>
-                    <para>
-                        The kernel image (e.g. <filename>vmlinuz</filename>) is provided
-                        by the <filename>kernel-image</filename> package.
-                        Image recipes depend on <filename>kernel-base</filename>.
-                        To specify whether or not the kernel
-                        image is installed in the generated root filesystem, override
-                        <filename>RDEPENDS_kernel-base</filename> to include or not
-                        include "kernel-image".</para>
-                        <para>See the
-                        "<ulink url='&YOCTO_DOCS_DEV_URL;#using-bbappend-files'>Using .bbappend Files in Your Layer</ulink>"
-                        section in the Yocto Project Development Tasks Manual
-                        for information on how to use an append file to
-                        override metadata.
-                    </para>
-                </answer>
-            </qandaentry>
-
-            <qandaentry>
-                <question>
-                    <para>
-                        How do I install a specific kernel module?
-                    </para>
-                </question>
-                <answer>
-                    <para>
-                        Linux kernel modules are packaged individually.
-                        To ensure a specific kernel module is included in an image,
-                        include it in the appropriate machine
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-RRECOMMENDS'><filename>RRECOMMENDS</filename></ulink>
-                        variable.</para>
-                        <para>These other variables are useful for installing specific
-                        modules:
-                        <literallayout class='monospaced'>
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_ESSENTIAL_EXTRA_RDEPENDS'><filename>MACHINE_ESSENTIAL_EXTRA_RDEPENDS</filename></ulink>
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS'><filename>MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</filename></ulink>
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_EXTRA_RDEPENDS'><filename>MACHINE_EXTRA_RDEPENDS</filename></ulink>
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE_EXTRA_RRECOMMENDS'><filename>MACHINE_EXTRA_RRECOMMENDS</filename></ulink>
-                        </literallayout>
-                        For example, set the following in the <filename>qemux86.conf</filename>
-                        file to include the <filename>ab123</filename> kernel modules
-                        with images built for the <filename>qemux86</filename> machine:
-                        <literallayout class='monospaced'>
-     MACHINE_EXTRA_RRECOMMENDS += "kernel-module-ab123"
-                        </literallayout>
-                        For more information, see the
-                        "<link linkend='incorporating-out-of-tree-modules'>Incorporating Out-of-Tree Modules</link>"
-                        section.
-                    </para>
-                </answer>
-            </qandaentry>
-
-            <qandaentry>
-                <question>
-                    <para>
-                        How do I change the Linux kernel command line?
-                   </para>
-                </question>
-                <answer>
-                    <para>
-                        The Linux kernel command line is typically specified in
-                        the machine config using the <filename>APPEND</filename> variable.
-                For example, you can add some helpful debug information doing
-                        the following:
-                        <literallayout class='monospaced'>
-     APPEND += "printk.time=y initcall_debug debug"
-                        </literallayout>
-                    </para>
-                </answer>
-            </qandaentry>
-        </qandaset>
-    </para>
-</section>
-</appendix>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/kernel-dev/kernel-dev-intro.rst b/poky/documentation/kernel-dev/kernel-dev-intro.rst
index 21d43d5..447cddb 100644
--- a/poky/documentation/kernel-dev/kernel-dev-intro.rst
+++ b/poky/documentation/kernel-dev/kernel-dev-intro.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ************
 Introduction
diff --git a/poky/documentation/kernel-dev/kernel-dev-intro.xml b/poky/documentation/kernel-dev/kernel-dev-intro.xml
deleted file mode 100644
index 7c1ea0e..0000000
--- a/poky/documentation/kernel-dev/kernel-dev-intro.xml
+++ /dev/null
@@ -1,260 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='kernel-dev-intro'>
-<title>Introduction</title>
-
-<section id='kernel-dev-overview'>
-    <title>Overview</title>
-
-    <para>
-        Regardless of how you intend to make use of the Yocto Project,
-        chances are you will work with the Linux kernel.
-        This manual describes how to set up your build host to support
-        kernel development, introduces the kernel development process,
-        provides background information on the Yocto Linux kernel
-        <ulink url='&YOCTO_DOCS_REF_URL;#metadata'>Metadata</ulink>,
-        describes common tasks you can perform using the kernel tools,
-        shows you how to use the kernel Metadata needed to work with
-        the kernel inside the Yocto Project, and provides insight into how
-        the Yocto Project team develops and maintains Yocto Linux kernel
-        Git repositories and Metadata.
-   </para>
-
-   <para>
-        Each Yocto Project release has a set of Yocto Linux kernel recipes,
-        whose Git repositories you can view in the Yocto
-        <ulink url='&YOCTO_GIT_URL;'>Source Repositories</ulink> under
-        the "Yocto Linux Kernel" heading.
-        New recipes for the release track the latest Linux kernel
-        upstream developments from
-        <ulink url='http://www.kernel.org'></ulink> and introduce
-        newly-supported platforms.
-        Previous recipes in the release are refreshed and supported for at
-        least one additional Yocto Project release.
-        As they align, these previous releases are updated to include the
-        latest from the Long Term Support Initiative (LTSI) project.
-        You can learn more about Yocto Linux kernels and LTSI in the
-        "<link linkend='kernel-big-picture'>Yocto Project Kernel Development and Maintenance</link>"
-        section.
-    </para>
-
-    <para>
-        Also included is a Yocto Linux kernel development recipe
-        (<filename>linux-yocto-dev.bb</filename>) should you want to work
-        with the very latest in upstream Yocto Linux kernel development and
-        kernel Metadata development.
-        <note>
-            For more on Yocto Linux kernels, see the
-            "<link linkend='kernel-big-picture'>Yocto Project Kernel Development and Maintenance</link>
-            section.
-        </note>
-    </para>
-
-    <para>
-        The Yocto Project also provides a powerful set of kernel
-        tools for managing Yocto Linux kernel sources and configuration data.
-        You can use these tools to make a single configuration change,
-        apply multiple patches, or work with your own kernel sources.
-    </para>
-
-    <para>
-        In particular, the kernel tools allow you to generate configuration
-        fragments that specify only what you must, and nothing more.
-        Configuration fragments only need to contain the highest level
-        visible <filename>CONFIG</filename> options as presented by the
-        Yocto Linux kernel <filename>menuconfig</filename> system.
-        Contrast this against a complete Yocto Linux kernel
-        <filename>.config</filename> file, which includes all the automatically
-        selected <filename>CONFIG</filename> options.
-        This efficiency reduces your maintenance effort and allows you
-        to further separate your configuration in ways that make sense for
-        your project.
-        A common split separates policy and hardware.
-        For example, all your kernels might support the
-        <filename>proc</filename> and <filename>sys</filename> filesystems,
-        but only specific boards require sound, USB, or specific drivers.
-        Specifying these configurations individually allows you to aggregate
-        them together as needed, but maintains them in only one place.
-        Similar logic applies to separating source changes.
-    </para>
-
-    <para>
-        If you do not maintain your own kernel sources and need to make
-        only minimal changes to the sources, the released recipes provide a
-        vetted base upon which to layer your changes.
-        Doing so allows you to benefit from the continual kernel
-        integration and testing performed during development of the
-        Yocto Project.
-    </para>
-
-    <para>
-        If, instead, you have a very specific Linux kernel source tree
-        and are unable to align with one of the official Yocto Linux kernel
-        recipes, an alternative exists by which you can use the Yocto
-        Project Linux kernel tools with your own kernel sources.
-    </para>
-
-    <para>
-        The remainder of this manual provides instructions for completing
-        specific Linux kernel development tasks.
-        These instructions assume you are comfortable working with
-        <ulink url='http://openembedded.org/wiki/Bitbake'>BitBake</ulink>
-        recipes and basic open-source development tools.
-        Understanding these concepts will facilitate the process of working
-        with the kernel recipes.
-        If you find you need some additional background, please be sure to
-        review and understand the following documentation:
-        <itemizedlist>
-            <listitem><para>
-                <ulink url='&YOCTO_DOCS_BRIEF_URL;'>Yocto Project Quick Build</ulink>
-                document.
-                </para></listitem>
-            <listitem><para>
-                <ulink url='&YOCTO_DOCS_OM_URL;'>Yocto Project Overview and Concepts Manual</ulink>.
-                </para></listitem>
-            <listitem><para>
-                <ulink url='&YOCTO_DOCS_SDK_URL;#using-devtool-in-your-sdk-workflow'><filename>devtool</filename> workflow</ulink>
-                as described in the Yocto Project Application Development and
-                the Extensible Software Development Kit (eSDK) manual.
-                </para></listitem>
-            <listitem><para>
-                The
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and Creating Layers</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-                </para></listitem>
-            <listitem><para>
-                The
-                "<link linkend='kernel-modification-workflow'>Kernel Modification Workflow</link>"
-                section.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='kernel-modification-workflow'>
-    <title>Kernel Modification Workflow</title>
-
-    <para>
-        Kernel modification involves changing the Yocto Project kernel,
-        which could involve changing configuration options as well as adding
-        new kernel recipes.
-        Configuration changes can be added in the form of configuration
-        fragments, while recipe modification comes through the kernel's
-        <filename>recipes-kernel</filename> area in a kernel layer you create.
-    </para>
-
-    <para>
-        This section presents a high-level overview of the Yocto Project
-        kernel modification workflow.
-        The illustration and accompanying list provide general information
-        and references for further information.
-        <imagedata fileref="figures/kernel-dev-flow.png"
-            width="9in" depth="5in" align="center" scalefit="1" />
-    </para>
-
-    <para>
-        <orderedlist>
-            <listitem><para>
-
-
-                <emphasis>Set up Your Host Development System to Support
-                Development Using the Yocto Project</emphasis>:
-                See the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-manual-start'>Setting Up the Development Host to Use the Yocto Project</ulink>"
-                section in the Yocto Project Development Tasks Manual for
-                options on how to get a build host ready to use the Yocto
-                Project.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Set Up Your Host Development System for Kernel Development:</emphasis>
-                It is recommended that you use <filename>devtool</filename>
-                and an extensible SDK for kernel development.
-                Alternatively, you can use traditional kernel development
-                methods with the Yocto Project.
-                Either way, there are steps you need to take to get the
-                development environment ready.</para>
-
-                <para>Using <filename>devtool</filename> and the eSDK requires
-                that you have a clean build of the image and that you are
-                set up with the appropriate eSDK.
-                For more information, see the
-                "<link linkend='getting-ready-to-develop-using-devtool'>Getting Ready to Develop Using <filename>devtool</filename></link>"
-                section.</para>
-
-                <para>Using traditional kernel development requires that you
-                have the kernel source available in an isolated local Git
-                repository.
-                For more information, see the
-                "<link linkend='getting-ready-for-traditional-kernel-development'>Getting Ready for Traditional Kernel Development</link>"
-                section.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Make Changes to the Kernel Source Code if
-                applicable:</emphasis>
-                Modifying the kernel does not always mean directly
-                changing source files.
-                However, if you have to do this, you make the changes to the
-                files in the eSDK's Build Directory if you are using
-                <filename>devtool</filename>.
-                For more information, see the
-                "<link linkend='using-devtool-to-patch-the-kernel'>Using <filename>devtool</filename> to Patch the Kernel</link>"
-                section.</para>
-
-                <para>If you are using traditional kernel development, you
-                edit the source files in the kernel's local Git repository.
-                For more information, see the
-                "<link linkend='using-traditional-kernel-development-to-patch-the-kernel'>Using Traditional Kernel Development to Patch the Kernel</link>"
-                section.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Make Kernel Configuration Changes if
-                Applicable:</emphasis>
-                If your situation calls for changing the kernel's
-                configuration, you can use
-                <link linkend='using-menuconfig'><filename>menuconfig</filename></link>,
-                which allows you to interactively develop and test the
-                configuration changes you are making to the kernel.
-                Saving changes you make with <filename>menuconfig</filename>
-                updates the kernel's <filename>.config</filename> file.
-                <note><title>Warning</title>
-                    Try to resist the temptation to directly edit an
-                    existing <filename>.config</filename> file, which is
-                    found in the Build Directory among the source code
-                    used for the build.
-                    Doing so, can produce unexpected results when the
-                    OpenEmbedded build system regenerates the configuration
-                    file.
-                </note>
-                Once you are satisfied with the configuration
-                changes made using <filename>menuconfig</filename>
-                and you have saved them, you can directly compare the
-                resulting <filename>.config</filename> file against an
-                existing original and gather those changes into a
-                <link linkend='creating-config-fragments'>configuration fragment file</link>
-                to be referenced from within the kernel's
-                <filename>.bbappend</filename> file.</para>
-
-                <para>Additionally, if you are working in a BSP layer
-                and need to modify the BSP's kernel's configuration,
-                you can use <filename>menuconfig</filename>.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Rebuild the Kernel Image With Your Changes:</emphasis>
-                Rebuilding the kernel image applies your changes.
-                Depending on your target hardware, you can verify your changes
-                on actual hardware or perhaps QEMU.
-                </para></listitem>
-        </orderedlist>
-        The remainder of this developer's guide covers common tasks typically
-        used during kernel development, advanced Metadata usage, and Yocto Linux
-        kernel maintenance concepts.
-    </para>
-</section>
-
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/kernel-dev/kernel-dev-maint-appx.rst b/poky/documentation/kernel-dev/kernel-dev-maint-appx.rst
index 5514dac..1788332 100644
--- a/poky/documentation/kernel-dev/kernel-dev-maint-appx.rst
+++ b/poky/documentation/kernel-dev/kernel-dev-maint-appx.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ******************
 Kernel Maintenance
diff --git a/poky/documentation/kernel-dev/kernel-dev-maint-appx.xml b/poky/documentation/kernel-dev/kernel-dev-maint-appx.xml
deleted file mode 100644
index 3d9c7c6..0000000
--- a/poky/documentation/kernel-dev/kernel-dev-maint-appx.xml
+++ /dev/null
@@ -1,357 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<appendix id='kernel-dev-maint-appx'>
-<title>Kernel Maintenance</title>
-
-    <section id='tree-construction'>
-        <title>Tree Construction</title>
-
-        <para>
-            This section describes construction of the Yocto Project kernel
-            source repositories as accomplished by the Yocto Project team to
-            create Yocto Linux kernel repositories.
-            These kernel repositories are found under the heading "Yocto Linux
-            Kernel" at
-            <ulink url='&YOCTO_GIT_URL;'>&YOCTO_GIT_URL;</ulink>
-            and are shipped as part of a Yocto Project release.
-            The team creates these repositories by compiling and executing the
-            set of feature descriptions for every BSP and feature in the
-            product.
-            Those feature descriptions list all necessary patches,
-            configurations, branches, tags, and feature divisions found in a
-            Yocto Linux kernel.
-            Thus, the Yocto Project Linux kernel repository (or tree) and
-            accompanying Metadata in the
-            <filename>yocto-kernel-cache</filename> are built.
-        </para>
-
-        <para>
-            The existence of these repositories allow you to access and clone a
-            particular Yocto Project Linux kernel repository and use it to
-            build images based on their configurations and features.
-        </para>
-
-        <para>
-            You can find the files used to describe all the valid features and
-            BSPs in the Yocto Project Linux kernel in any clone of the Yocto
-            Project Linux kernel source repository and
-            <filename>yocto-kernel-cache</filename> Git trees.
-            For example, the following commands clone the Yocto Project
-            baseline Linux kernel that branches off
-            <filename>linux.org</filename> version 4.12 and the
-            <filename>yocto-kernel-cache</filename>, which contains stores of
-            kernel Metadata:
-            <literallayout class='monospaced'>
-     $ git clone git://git.yoctoproject.org/linux-yocto-4.12
-     $ git clone git://git.yoctoproject.org/linux-kernel-cache
-            </literallayout>
-            For more information on how to set up a local Git repository of
-            the Yocto Project Linux kernel files, see the
-            "<link linkend='preparing-the-build-host-to-work-on-the-kernel'>Preparing the Build Host to Work on the Kernel</link>"
-            section.
-        </para>
-
-        <para>
-            Once you have cloned the kernel Git repository and the
-            cache of Metadata on your local machine, you can discover the
-            branches that are available in the repository using the following
-            Git command:
-            <literallayout class='monospaced'>
-     $ git branch -a
-            </literallayout>
-            Checking out a branch allows you to work with a particular
-            Yocto Linux kernel.
-            For example, the following commands check out the
-            "standard/beagleboard" branch of the Yocto Linux kernel repository
-            and the "yocto-4.12" branch of the
-            <filename>yocto-kernel-cache</filename> repository:
-            <literallayout class='monospaced'>
-     $ cd ~/linux-yocto-4.12
-     $ git checkout -b my-kernel-4.12 remotes/origin/standard/beagleboard
-     $ cd ~/linux-kernel-cache
-     $ git checkout -b my-4.12-metadata remotes/origin/yocto-4.12
-            </literallayout>
-            <note>
-                Branches in the <filename>yocto-kernel-cache</filename>
-                repository correspond to Yocto Linux kernel versions
-                (e.g. "yocto-4.12", "yocto-4.10", "yocto-4.9", and so forth).
-            </note>
-            Once you have checked out and switched to appropriate branches,
-            you can see a snapshot of all the kernel source files used to
-            used to build that particular Yocto Linux kernel for a
-            particular board.
-        </para>
-
-        <para>
-            To see the features and configurations for a particular Yocto
-            Linux kernel, you need to examine the
-            <filename>yocto-kernel-cache</filename> Git repository.
-            As mentioned, branches in the
-            <filename>yocto-kernel-cache</filename> repository correspond to
-            Yocto Linux kernel versions (e.g. <filename>yocto-4.12</filename>).
-            Branches contain descriptions in the form of
-            <filename>.scc</filename> and <filename>.cfg</filename> files.
-        </para>
-
-        <para>
-            You should realize, however, that browsing your local
-            <filename>yocto-kernel-cache</filename> repository for feature
-            descriptions and patches is not an effective way to determine what
-            is in a particular kernel branch.
-            Instead, you should use Git directly to discover the changes in
-            a branch.
-            Using Git is an efficient and flexible way to inspect changes to
-            the kernel.
-            <note>
-                Ground up reconstruction of the complete kernel tree is an
-                action only taken by the Yocto Project team during an active
-                development cycle.
-                When you create a clone of the kernel Git repository, you are
-                simply making it efficiently available for building and
-                development.
-            </note>
-        </para>
-
-        <para>
-            The following steps describe what happens when the Yocto Project
-            Team constructs the Yocto Project kernel source Git repository
-            (or tree) found at
-            <ulink url='&YOCTO_GIT_URL;'></ulink> given the
-            introduction of a new top-level kernel feature or BSP.
-            The following actions effectively provide the Metadata
-            and create the tree that includes the new feature, patch, or BSP:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Pass Feature to the OpenEmbedded Build System:</emphasis>
-                    A top-level kernel feature is passed to the kernel build
-                    subsystem.
-                    Normally, this feature is a BSP for a particular kernel
-                    type.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Locate Feature:</emphasis>
-                    The file that describes the top-level feature is located
-                    by searching these system directories:
-                    <itemizedlist>
-                        <listitem><para>
-                            The in-tree kernel-cache directories, which are
-                            located in the
-                            <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/yocto-kernel-cache/tree/bsp'><filename>yocto-kernel-cache</filename></ulink>
-                            repository organized under the "Yocto Linux Kernel"
-                            heading in the
-                            <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi'>Yocto Project Source Repositories</ulink>.
-                            </para></listitem>
-                        <listitem><para>
-                            Areas pointed to by <filename>SRC_URI</filename>
-                            statements found in kernel recipes
-                            </para></listitem>
-                    </itemizedlist>
-                    For a typical build, the target of the search is a
-                    feature description in an <filename>.scc</filename> file
-                    whose name follows this format (e.g.
-                    <filename>beaglebone-standard.scc</filename> and
-                    <filename>beaglebone-preempt-rt.scc</filename>):
-                    <literallayout class='monospaced'>
-     <replaceable>bsp_root_name</replaceable>-<replaceable>kernel_type</replaceable>.scc
-                    </literallayout>
-                </para></listitem>
-                <listitem><para>
-                    <emphasis>Expand Feature:</emphasis>
-                    Once located, the feature description is either expanded
-                    into a simple script of actions, or into an existing
-                    equivalent script that is already part of the shipped
-                    kernel.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Append Extra Features:</emphasis>
-                    Extra features are appended to the top-level feature
-                    description.
-                    These features can come from the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-KERNEL_FEATURES'><filename>KERNEL_FEATURES</filename></ulink>
-                    variable in recipes.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Locate, Expand, and Append Each Feature:</emphasis>
-                    Each extra feature is located, expanded and appended to
-                    the script as described in step three.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Execute the Script:</emphasis>
-                    The script is executed to produce files
-                    <filename>.scc</filename> and <filename>.cfg</filename>
-                    files in appropriate directories of the
-                    <filename>yocto-kernel-cache</filename> repository.
-                    These files are descriptions of all the branches, tags,
-                    patches and configurations that need to be applied to the
-                    base Git repository to completely create the
-                    source (build) branch for the new BSP or feature.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Clone Base Repository:</emphasis>
-                    The base repository is cloned, and the actions
-                    listed in the <filename>yocto-kernel-cache</filename>
-                    directories are applied to the tree.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Perform Cleanup:</emphasis>
-                    The Git repositories are left with the desired branches
-                    checked out and any required branching, patching and
-                    tagging has been performed.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-
-        <para>
-            The kernel tree and cache are ready for developer consumption to
-            be locally cloned, configured, and built into a Yocto Project
-            kernel specific to some target hardware.
-            <note><title>Notes</title>
-                <itemizedlist>
-                    <listitem><para>
-                        The generated <filename>yocto-kernel-cache</filename>
-                        repository adds to the kernel as shipped with the Yocto
-                        Project release.
-                        Any add-ons and configuration data are applied to the
-                        end of an existing branch.
-                        The full repository generation that is found in the
-                        official Yocto Project kernel repositories at
-                        <ulink url='&YOCTO_GIT_URL;'>http://git.yoctoproject.org</ulink>
-                        is the combination of all supported boards and
-                        configurations.
-                        </para></listitem>
-                    <listitem><para>
-                        The technique the Yocto Project team uses is flexible
-                        and allows for seamless blending of an immutable
-                        history with additional patches specific to a
-                        deployment.
-                        Any additions to the kernel become an integrated part
-                        of the branches.
-                        </para></listitem>
-                    <listitem><para>
-                        The full kernel tree that you see on
-                        <ulink url='&YOCTO_GIT_URL;'></ulink> is
-                        generated through repeating the above steps for all
-                        valid BSPs.
-                        The end result is a branched, clean history tree that
-                        makes up the kernel for a given release.
-                        You can see the script (<filename>kgit-scc</filename>)
-                        responsible for this in the
-                        <ulink url='&YOCTO_GIT_URL;/cgit.cgi/yocto-kernel-tools/tree/tools'><filename>yocto-kernel-tools</filename></ulink>
-                        repository.
-                        </para></listitem>
-                    <listitem><para>
-                        The steps used to construct the full kernel tree are
-                        the same steps that BitBake uses when it builds a
-                        kernel image.
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-        </para>
-    </section>
-
-    <section id='build-strategy'>
-        <title>Build Strategy</title>
-
-        <para>
-            Once you have cloned a Yocto Linux kernel repository and the
-            cache repository (<filename>yocto-kernel-cache</filename>) onto
-            your development system, you can consider the compilation phase
-            of kernel development, which is building a kernel image.
-            Some prerequisites exist that are validated by the build process
-            before compilation starts:
-        </para>
-
-        <itemizedlist>
-            <listitem><para>
-                The
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                points to the kernel Git repository.
-                </para></listitem>
-            <listitem><para>
-                A BSP build branch with Metadata exists in the
-                <filename>yocto-kernel-cache</filename> repository.
-                The branch is based on the Yocto Linux kernel version and
-                has configurations and features grouped under the
-                <filename>yocto-kernel-cache/bsp</filename> directory.
-                For example, features and configurations for the
-                BeagleBone Board assuming a
-                <filename>linux-yocto_4.12</filename> kernel reside in the
-                following area of the <filename>yocto-kernel-cache</filename>
-                repository:
-                <literallayout class='monospaced'>
-     yocto-kernel-cache/bsp/beaglebone
-                </literallayout>
-                <note>
-                    In the previous example, the "yocto-4.12" branch is
-                    checked out in the <filename>yocto-kernel-cache</filename>
-                    repository.
-                </note>
-                </para></listitem>
-        </itemizedlist>
-
-        <para>
-            The OpenEmbedded build system makes sure these conditions exist
-            before attempting compilation.
-            Other means, however, do exist, such as as bootstrapping a BSP.
-        </para>
-
-        <para>
-            Before building a kernel, the build process verifies the tree
-            and configures the kernel by processing all of the
-            configuration "fragments" specified by feature descriptions
-            in the <filename>.scc</filename> files.
-            As the features are compiled, associated kernel configuration
-            fragments are noted and recorded in the series of directories
-            in their compilation order.
-            The fragments are migrated, pre-processed and passed to the
-            Linux Kernel Configuration subsystem (<filename>lkc</filename>) as
-            raw input in the form of a <filename>.config</filename> file.
-            The <filename>lkc</filename> uses its own internal dependency
-            constraints to do the final processing of that information and
-            generates the final <filename>.config</filename> file that is used
-            during compilation.
-        </para>
-
-        <para>
-            Using the board's architecture and other relevant values from
-            the board's template, kernel compilation is started and a kernel
-            image is produced.
-        </para>
-
-        <para>
-            The other thing that you notice once you configure a kernel is that
-            the build process generates a build tree that is separate from
-            your kernel's local Git source repository tree.
-            This build tree has a name that uses the following form, where
-            <filename>${MACHINE}</filename> is the metadata name of the
-            machine (BSP) and "kernel_type" is one of the Yocto Project
-            supported kernel types (e.g. "standard"):
-        <literallayout class='monospaced'>
-     linux-${MACHINE}-<replaceable>kernel_type</replaceable>-build
-        </literallayout>
-        </para>
-
-        <para>
-            The existing support in the <filename>kernel.org</filename> tree
-            achieves this default functionality.
-        </para>
-
-        <para>
-            This behavior means that all the generated files for a particular
-            machine or BSP are now in the build tree directory.
-            The files include the final <filename>.config</filename> file,
-            all the <filename>.o</filename> files, the <filename>.a</filename>
-            files, and so forth.
-            Since each machine or BSP has its own separate
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-            in its own separate branch of the Git repository, you can easily
-            switch between different builds.
-        </para>
-    </section>
-</appendix>
-<!--
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diff --git a/poky/documentation/kernel-dev/kernel-dev.rst b/poky/documentation/kernel-dev/kernel-dev.rst
index 332e089..55b42ed 100644
--- a/poky/documentation/kernel-dev/kernel-dev.rst
+++ b/poky/documentation/kernel-dev/kernel-dev.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 =============================================
 Yocto Project Linux Kernel Development Manual
diff --git a/poky/documentation/kernel-dev/kernel-dev.xml b/poky/documentation/kernel-dev/kernel-dev.xml
deleted file mode 100755
index 887ff83..0000000
--- a/poky/documentation/kernel-dev/kernel-dev.xml
+++ /dev/null
@@ -1,187 +0,0 @@
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<book id='kernel-dev' lang='en'
-      xmlns:xi="http://www.w3.org/2003/XInclude"
-      xmlns="http://docbook.org/ns/docbook"
-      >
-    <bookinfo>
-
-        <mediaobject>
-            <imageobject>
-                <imagedata fileref='figures/kernel-dev-title.png'
-                    format='SVG'
-                    align='left' scalefit='1' width='100%'/>
-            </imageobject>
-        </mediaobject>
-
-        <title>
-		  Yocto Project Linux Kernel Development Manual
-		</title>
-
-        <authorgroup>
-            <author>
-                <affiliation>
-                    <orgname>&ORGNAME;</orgname>
-                </affiliation>
-                <email>&ORGEMAIL;</email>
-            </author>
-        </authorgroup>
-
-        <revhistory>
-            <revision>
-                <revnumber>1.4</revnumber>
-                <date>April 2013</date>
-                <revremark>The initial document released with the Yocto Project 1.4 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.5</revnumber>
-                <date>October 2013</date>
-                <revremark>Released with the Yocto Project 1.5 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.6</revnumber>
-                <date>April 2014</date>
-                <revremark>Released with the Yocto Project 1.6 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.7</revnumber>
-                <date>October 2014</date>
-                <revremark>Released with the Yocto Project 1.7 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.8</revnumber>
-                <date>April 2015</date>
-                <revremark>Released with the Yocto Project 1.8 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.0</revnumber>
-                <date>October 2015</date>
-                <revremark>Released with the Yocto Project 2.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.1</revnumber>
-                <date>April 2016</date>
-                <revremark>Released with the Yocto Project 2.1 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.2</revnumber>
-                <date>October 2016</date>
-                <revremark>Released with the Yocto Project 2.2 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.3</revnumber>
-                <date>May 2017</date>
-                <revremark>Released with the Yocto Project 2.3 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.4</revnumber>
-                <date>October 2017</date>
-                <revremark>Released with the Yocto Project 2.4 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.5</revnumber>
-                <date>May 2018</date>
-                <revremark>Released with the Yocto Project 2.5 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.6</revnumber>
-                <date>November 2018</date>
-                <revremark>Released with the Yocto Project 2.6 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.7</revnumber>
-                <date>May 2019</date>
-                <revremark>Released with the Yocto Project 2.7 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>3.0</revnumber>
-                <date>October 2019</date>
-                <revremark>Released with the Yocto Project 3.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>3.1</revnumber>
-                <date>&REL_MONTH_YEAR;</date>
-                <revremark>Released with the Yocto Project 3.1 Release.</revremark>
-            </revision>
-        </revhistory>
-
-    <copyright>
-      <year>&COPYRIGHT_YEAR;</year>
-      <holder>Linux Foundation</holder>
-    </copyright>
-
-    <legalnotice>
-      <para>
-        Permission is granted to copy, distribute and/or modify this document under
-        the terms of the <ulink type="http" url="http://creativecommons.org/licenses/by-sa/2.0/uk/">Creative Commons Attribution-Share Alike 2.0 UK: England &amp; Wales</ulink> as published by Creative Commons.
-      </para>
-           <note><title>Manual Notes</title>
-               <itemizedlist>
-                   <listitem><para>
-                       This version of the
-                       <emphasis>Yocto Project Linux Kernel Development Manual</emphasis>
-                       is for the &YOCTO_DOC_VERSION; release of the
-                       Yocto Project.
-                       To be sure you have the latest version of the manual
-                       for this release, go to the
-                       <ulink url='&YOCTO_DOCS_URL;'>Yocto Project documentation page</ulink>
-                       and select the manual from that site.
-                       Manuals from the site are more up-to-date than manuals
-                       derived from the Yocto Project released TAR files.
-                       </para></listitem>
-                   <listitem><para>
-                       If you located this manual through a web search, the
-                       version of the manual might not be the one you want
-                       (e.g. the search might have returned a manual much
-                       older than the Yocto Project version with which you
-                       are working).
-                       You can see all Yocto Project major releases by
-                       visiting the
-                       <ulink url='&YOCTO_WIKI_URL;/wiki/Releases'>Releases</ulink>
-                       page.
-                       If you need a version of this manual for a different
-                       Yocto Project release, visit the
-                       <ulink url='&YOCTO_DOCS_URL;'>Yocto Project documentation page</ulink>
-                       and select the manual set by using the
-                       "ACTIVE RELEASES DOCUMENTATION" or "DOCUMENTS ARCHIVE"
-                       pull-down menus.
-                       </para></listitem>
-                   <listitem>
-                       <para>
-                       To report any inaccuracies or problems with this
-                       (or any other Yocto Project) manual, send an email to
-                       the Yocto Project documentation mailing list at
-                       <filename>docs@lists.yoctoproject.org</filename> or
-                       log into the freenode <filename>#yocto</filename> channel.
-                       </para>
-                   </listitem>
-               </itemizedlist>
-           </note>
-    </legalnotice>
-
-    </bookinfo>
-
-    <xi:include href="kernel-dev-intro.xml"/>
-
-    <xi:include href="kernel-dev-common.xml"/>
-
-    <xi:include href="kernel-dev-advanced.xml"/>
-
-    <xi:include href="kernel-dev-concepts-appx.xml"/>
-
-    <xi:include href="kernel-dev-maint-appx.xml"/>
-
-    <xi:include href="kernel-dev-faq.xml"/>
-
-<!--    <index id='index'>
-      <title>Index</title>
-    </index>
--->
-
-</book>
-<!--
-vim: expandtab tw=80 ts=4
--->
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+++ /dev/null
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-<?xml version='1.0'?>
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
-
-  <xsl:import href="http://downloads.yoctoproject.org/mirror/docbook-mirror/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-<!--
-
-  <xsl:import href="../template/1.76.1/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-  <xsl:import href="http://docbook.sourceforge.net/release/xsl/1.76.1/xhtml/docbook.xsl" />
-
--->
-
-  <xsl:param name="generate.toc">
-   appendix  toc
-   chapter   toc
-   article   nop
-   book      nop
-   part      nop
-   preface   nop
-   qandadiv  nop
-   qandaset  nop
-   reference nop
-   section   nop
-   set       nop
-  </xsl:param>
-
-  <xsl:include href="../template/permalinks.xsl"/>
-  <xsl:include href="../template/section.title.xsl"/>
-  <xsl:include href="../template/component.title.xsl"/>
-  <xsl:include href="../template/division.title.xsl"/>
-  <xsl:include href="../template/formal.object.heading.xsl"/>
-  <xsl:include href="../template/gloss-permalinks.xsl"/>
-
-  <xsl:param name="html.stylesheet" select="'mega-style.css'" />
-  <xsl:param name="chapter.autolabel" select="1" />
-  <xsl:param name="appendix.autolabel">A</xsl:param>
-  <xsl:param name="section.autolabel" select="1" />
-  <xsl:param name="section.label.includes.component.label" select="1" />
-  <xsl:param name="generate.id.attributes" select="1" />
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-</xsl:stylesheet>
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--- a/poky/documentation/mega-manual/mega-manual.xml
+++ /dev/null
@@ -1,362 +0,0 @@
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<book id='mega-manual' lang='en'
-      xmlns:xi="http://www.w3.org/2003/XInclude"
-      xmlns="http://docbook.org/ns/docbook"
-      >
-
-    <bookinfo>
-
-        <abstract>
-            The Yocto Project Mega-Manual is a concatenation of the published
-            Yocto Project HTML manuals along with the corresponding BitBake
-            User Manual for the given release.
-            The Mega-Manual exists to help users efficiently search for strings
-            across the entire Yocto Project documentation set inclusive of
-            the BitBake User Manual.
-        </abstract>
-
-        <mediaobject>
-            <imageobject>
-                <imagedata fileref='figures/mega-title.png'
-                    format='SVG'
-                    align='left' scalefit='1' width='100%'/>
-            </imageobject>
-        </mediaobject>
-
-        <title>
-            Yocto Project Mega-Manual
-        </title>
-
-        <authorgroup>
-            <author>
-                <affiliation>
-                    <orgname>&ORGNAME;</orgname>
-                </affiliation>
-                <email>&ORGEMAIL;</email>
-            </author>
-        </authorgroup>
-
-        <revhistory>
-            <revision>
-                <revnumber>1.8</revnumber>
-                <date>April 2015</date>
-                <revremark>The initial document released with the Yocto Project 1.8 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.0</revnumber>
-                <date>October 2015</date>
-                <revremark>Released with the Yocto Project 2.0 Release.</revremark>
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diff --git a/poky/documentation/overview-manual/history.rst b/poky/documentation/overview-manual/history.rst
index 0273d28..6fc700a 100644
--- a/poky/documentation/overview-manual/history.rst
+++ b/poky/documentation/overview-manual/history.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ***********************
 Manual Revision History
diff --git a/poky/documentation/overview-manual/overview-manual-concepts.rst b/poky/documentation/overview-manual/overview-manual-concepts.rst
index 6ce5f80..d9f50e5 100644
--- a/poky/documentation/overview-manual/overview-manual-concepts.rst
+++ b/poky/documentation/overview-manual/overview-manual-concepts.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 **********************
 Yocto Project Concepts
diff --git a/poky/documentation/overview-manual/overview-manual-concepts.xml b/poky/documentation/overview-manual/overview-manual-concepts.xml
deleted file mode 100644
index 58b64bd..0000000
--- a/poky/documentation/overview-manual/overview-manual-concepts.xml
+++ /dev/null
@@ -1,3235 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id=' overview-manual-concepts'>
-<title>Yocto Project Concepts</title>
-
-    <para>
-        This chapter provides explanations for Yocto Project concepts that
-        go beyond the surface of "how-to" information and reference (or
-        look-up) material.
-        Concepts such as components, the
-        <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>
-        workflow, cross-development toolchains, shared state cache, and so
-        forth are explained.
-    </para>
-
-    <section id='yocto-project-components'>
-        <title>Yocto Project Components</title>
-
-        <para>
-            The
-            <ulink url='&YOCTO_DOCS_REF_URL;#bitbake-term'>BitBake</ulink>
-            task executor together with various types of configuration files
-            form the
-            <ulink url='&YOCTO_DOCS_REF_URL;#oe-core'>OpenEmbedded-Core</ulink>.
-            This section overviews these components by describing their use and
-            how they interact.
-        </para>
-
-        <para>
-            BitBake handles the parsing and execution of the data files.
-            The data itself is of various types:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis>Recipes:</emphasis>
-                    Provides details about particular pieces of software.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Class Data:</emphasis>
-                    Abstracts common build information (e.g. how to build a
-                    Linux kernel).
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Configuration Data:</emphasis>
-                    Defines machine-specific settings, policy decisions, and
-                    so forth.
-                    Configuration data acts as the glue to bind everything
-                    together.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            BitBake knows how to combine multiple data sources together and
-            refers to each data source as a layer.
-            For information on layers, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and Creating Layers</ulink>"
-            section of the Yocto Project Development Tasks Manual.
-        </para>
-
-        <para>
-            Following are some brief details on these core components.
-            For additional information on how these components interact during
-            a build, see the
-            "<link linkend='openembedded-build-system-build-concepts'>OpenEmbedded Build System Concepts</link>"
-            section.
-        </para>
-
-        <section id='usingpoky-components-bitbake'>
-            <title>BitBake</title>
-
-            <para>
-                BitBake is the tool at the heart of the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>
-                and is responsible for parsing the
-                <ulink url='&YOCTO_DOCS_REF_URL;#metadata'>Metadata</ulink>,
-                generating a list of tasks from it, and then executing those
-                tasks.
-            </para>
-
-            <para>
-                This section briefly introduces BitBake.
-                If you want more information on BitBake, see the
-                <ulink url='&YOCTO_DOCS_BB_URL;'>BitBake User Manual</ulink>.
-            </para>
-
-            <para>
-                To see a list of the options BitBake supports, use either of
-                the following commands:
-                <literallayout class='monospaced'>
-     $ bitbake -h
-     $ bitbake --help
-                </literallayout>
-            </para>
-
-            <para>
-                The most common usage for BitBake is
-                <filename>bitbake <replaceable>packagename</replaceable></filename>,
-                where <filename>packagename</filename> is the name of the
-                package you want to build (referred to as the "target").
-                The target often equates to the first part of a recipe's
-                filename (e.g. "foo" for a recipe named
-                <filename>foo_1.3.0-r0.bb</filename>).
-                So, to process the
-                <filename>matchbox-desktop_1.2.3.bb</filename> recipe file, you
-                might type the following:
-                <literallayout class='monospaced'>
-     $ bitbake matchbox-desktop
-                </literallayout>
-                Several different versions of
-                <filename>matchbox-desktop</filename> might exist.
-                BitBake chooses the one selected by the distribution
-                configuration.
-                You can get more details about how BitBake chooses between
-                different target versions and providers in the
-                "<ulink url='&YOCTO_DOCS_BB_URL;#bb-bitbake-preferences'>Preferences</ulink>"
-                section of the BitBake User Manual.
-            </para>
-
-            <para>
-                BitBake also tries to execute any dependent tasks first.
-                So for example, before building
-                <filename>matchbox-desktop</filename>, BitBake would build a
-                cross compiler and <filename>glibc</filename> if they had not
-                already been built.
-            </para>
-
-            <para>
-                A useful BitBake option to consider is the
-                <filename>-k</filename> or <filename>--continue</filename>
-                option.
-                This option instructs BitBake to try and continue processing
-                the job as long as possible even after encountering an error.
-                When an error occurs, the target that failed and those that
-                depend on it cannot be remade.
-                However, when you use this option other dependencies can
-                still be processed.
-            </para>
-        </section>
-
-        <section id='overview-components-recipes'>
-            <title>Recipes</title>
-
-            <para>
-                Files that have the <filename>.bb</filename> suffix are
-                "recipes" files.
-                In general, a recipe contains information about a single piece
-                of software.
-                This information includes the location from which to download
-                the unaltered source, any source patches to be applied to that
-                source (if needed), which special configuration options to
-                apply, how to compile the source files, and how to package the
-                compiled output.
-            </para>
-
-            <para>
-                The term "package" is sometimes used to refer to recipes.
-                However, since the word "package" is used for the packaged
-                output from the OpenEmbedded build system (i.e.
-                <filename>.ipk</filename> or <filename>.deb</filename> files),
-                this document avoids using the term "package" when referring
-                to recipes.
-            </para>
-        </section>
-
-        <section id='overview-components-classes'>
-            <title>Classes</title>
-
-            <para>
-                Class files (<filename>.bbclass</filename>) contain information
-                that is useful to share between recipes files.
-                An example is the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-autotools'><filename>autotools</filename></ulink>
-                class, which contains common settings for any application that
-                Autotools uses.
-                The
-                "<ulink url='&YOCTO_DOCS_REF_URL;#ref-classes'>Classes</ulink>"
-                chapter in the Yocto Project Reference Manual provides
-                details about classes and how to use them.
-            </para>
-        </section>
-
-        <section id='overview-components-configurations'>
-            <title>Configurations</title>
-
-            <para>
-                The configuration files (<filename>.conf</filename>) define
-                various configuration variables that govern the OpenEmbedded
-                build process.
-                These files fall into several areas that define machine
-                configuration options, distribution configuration options,
-                compiler tuning options, general common configuration options,
-                and user configuration options in
-                <filename>conf/local.conf</filename>, which is found in the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-            </para>
-        </section>
-    </section>
-
-    <section id='overview-layers'>
-        <title>Layers</title>
-
-        <para>
-            Layers are repositories that contain related metadata (i.e.
-            sets of instructions) that tell the OpenEmbedded build system how
-            to build a target.
-            Yocto Project's
-            <link linkend='the-yocto-project-layer-model'>layer model</link>
-            facilitates collaboration, sharing, customization, and reuse
-            within the Yocto Project development environment.
-            Layers logically separate information for your project.
-            For example, you can use a layer to hold all the configurations
-            for a particular piece of hardware.
-            Isolating hardware-specific configurations allows you to share
-            other metadata by using a different layer where that metadata
-            might be common across several pieces of hardware.
-        </para>
-
-        <para>
-            Many layers exist that work in the Yocto Project development
-            environment.
-            The
-            <ulink url='https://caffelli-staging.yoctoproject.org/software-overview/layers/'>Yocto Project Curated Layer Index</ulink>
-            and
-            <ulink url='http://layers.openembedded.org/layerindex/branch/master/layers/'>OpenEmbedded Layer Index</ulink>
-            both contain layers from which you can use or leverage.
-        </para>
-
-        <para>
-            By convention, layers in the Yocto Project follow a specific form.
-            Conforming to a known structure allows BitBake to make assumptions
-            during builds on where to find types of metadata.
-            You can find procedures and learn about tools (i.e.
-            <filename>bitbake-layers</filename>) for creating layers suitable
-            for the Yocto Project in the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and Creating Layers</ulink>"
-            section of the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id="openembedded-build-system-build-concepts">
-        <title>OpenEmbedded Build System Concepts</title>
-
-        <para>
-            This section takes a more detailed look inside the build
-            process used by the
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>,
-            which is the build system specific to the Yocto Project.
-            At the heart of the build system is BitBake, the task executor.
-        </para>
-
-        <para>
-            The following diagram represents the high-level workflow of a
-            build.
-            The remainder of this section expands on the fundamental input,
-            output, process, and metadata logical blocks that make up the
-            workflow.
-        </para>
-
-        <para id='general-workflow-figure'>
-            <imagedata fileref="figures/YP-flow-diagram.png" format="PNG" align='center' width="8in"/>
-        </para>
-
-        <para>
-            In general, the build's workflow consists of several functional
-            areas:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis>User Configuration:</emphasis>
-                    metadata you can use to control the build process.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Metadata Layers:</emphasis>
-                    Various layers that provide software, machine, and
-                    distro metadata.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Source Files:</emphasis>
-                    Upstream releases, local projects, and SCMs.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Build System:</emphasis>
-                    Processes under the control of
-                    <ulink url='&YOCTO_DOCS_REF_URL;#bitbake-term'>BitBake</ulink>.
-                    This block expands on how BitBake fetches source, applies
-                    patches, completes compilation, analyzes output for package
-                    generation, creates and tests packages, generates images,
-                    and generates cross-development tools.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Package Feeds:</emphasis>
-                    Directories containing output packages (RPM, DEB or IPK),
-                    which are subsequently used in the construction of an
-                    image or Software Development Kit (SDK), produced by the
-                    build system.
-                    These feeds can also be copied and shared using a web
-                    server or other means to facilitate extending or updating
-                    existing images on devices at runtime if runtime package
-                    management is enabled.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Images:</emphasis>
-                    Images produced by the workflow.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Application Development SDK:</emphasis>
-                    Cross-development tools that are produced along with
-                    an image or separately with BitBake.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <section id="user-configuration">
-            <title>User Configuration</title>
-
-            <para>
-                User configuration helps define the build.
-                Through user configuration, you can tell BitBake the
-                target architecture for which you are building the image,
-                where to store downloaded source, and other build properties.
-            </para>
-
-            <para>
-                The following figure shows an expanded representation of the
-                "User Configuration" box of the
-                <link linkend='general-workflow-figure'>general workflow figure</link>:
-            </para>
-
-            <para>
-                <imagedata fileref="figures/user-configuration.png" align="center" width="8in" depth="4.5in" />
-            </para>
-
-            <para>
-                BitBake needs some basic configuration files in order to
-                complete a build.
-                These files are <filename>*.conf</filename> files.
-                The minimally necessary ones reside as example files in the
-                <filename>build/conf</filename> directory of the
-                <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>.
-                For simplicity, this section refers to the Source Directory as
-                the "Poky Directory."
-            </para>
-
-            <para>
-                When you clone the
-                <ulink url='&YOCTO_DOCS_REF_URL;#poky'>Poky</ulink>
-                Git repository or you download and unpack a Yocto Project
-                release, you can set up the Source Directory to be named
-                anything you want.
-                For this discussion, the cloned repository uses the default
-                name <filename>poky</filename>.
-                <note>
-                    The Poky repository is primarily an aggregation of existing
-                    repositories.
-                    It is not a canonical upstream source.
-                </note>
-            </para>
-
-            <para>
-                The <filename>meta-poky</filename> layer inside Poky contains
-                a <filename>conf</filename> directory that has example
-                configuration files.
-                These example files are used as a basis for creating actual
-                configuration files when you source
-                <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>,
-                which is the build environment script.
-            </para>
-
-            <para>
-                Sourcing the build environment script creates a
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                if one does not already exist.
-                BitBake uses the Build Directory for all its work during
-                builds.
-                The Build Directory has a <filename>conf</filename> directory
-                that contains default versions of your
-                <filename>local.conf</filename> and
-                <filename>bblayers.conf</filename> configuration files.
-                These default configuration files are created only if versions
-                do not already exist in the Build Directory at the time you
-                source the build environment setup script.
-            </para>
-
-            <para>
-                Because the Poky repository is fundamentally an aggregation of
-                existing repositories, some users might be familiar with
-                running the <filename>&OE_INIT_FILE;</filename> script
-                in the context of separate
-                <ulink url='&YOCTO_DOCS_REF_URL;#oe-core'>OpenEmbedded-Core</ulink>
-                and BitBake repositories rather than a single Poky repository.
-                This discussion assumes the script is executed from
-                within a cloned or unpacked version of Poky.
-            </para>
-
-            <para>
-                Depending on where the script is sourced, different
-                sub-scripts are called to set up the Build Directory
-                (Yocto or OpenEmbedded).
-                Specifically, the script
-                <filename>scripts/oe-setup-builddir</filename> inside the
-                poky directory sets up the Build Directory and seeds the
-                directory (if necessary) with configuration files appropriate
-                for the Yocto Project development environment.
-                <note>
-                    The <filename>scripts/oe-setup-builddir</filename> script
-                    uses the <filename>$TEMPLATECONF</filename> variable to
-                    determine which sample configuration files to locate.
-                </note>
-            </para>
-
-            <para>
-                The <filename>local.conf</filename> file provides many
-                basic variables that define a build environment.
-                Here is a list of a few.
-                To see the default configurations in a
-                <filename>local.conf</filename> file created by the build
-                environment script, see the
-                <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta-poky/conf/local.conf.sample'><filename>local.conf.sample</filename></ulink>
-                in the <filename>meta-poky</filename> layer:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>Target Machine Selection:</emphasis>
-                        Controlled by the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
-                        variable.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Download Directory:</emphasis>
-                        Controlled by the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DL_DIR'><filename>DL_DIR</filename></ulink>
-                        variable.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Shared State Directory:</emphasis>
-                        Controlled by the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SSTATE_DIR'><filename>SSTATE_DIR</filename></ulink>
-                        variable.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Build Output:</emphasis>
-                        Controlled by the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-TMPDIR'><filename>TMPDIR</filename></ulink>
-                        variable.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Distribution Policy:</emphasis>
-                        Controlled by the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO'><filename>DISTRO</filename></ulink>
-                        variable.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Packaging Format:</emphasis>
-                        Controlled by the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></ulink>
-                        variable.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>SDK Target Architecture:</emphasis>
-                        Controlled by the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDKMACHINE'><filename>SDKMACHINE</filename></ulink>
-                        variable.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Extra Image Packages:</emphasis>
-                        Controlled by the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_IMAGE_FEATURES'><filename>EXTRA_IMAGE_FEATURES</filename></ulink>
-                        variable.
-                        </para></listitem>
-                </itemizedlist>
-                <note>
-                    Configurations set in the
-                    <filename>conf/local.conf</filename> file can also be set
-                    in the <filename>conf/site.conf</filename> and
-                    <filename>conf/auto.conf</filename> configuration files.
-                </note>
-            </para>
-
-            <para>
-                The <filename>bblayers.conf</filename> file tells BitBake what
-                layers you want considered during the build.
-                By default, the layers listed in this file include layers
-                minimally needed by the build system.
-                However, you must manually add any custom layers you have
-                created.
-                You can find more information on working with the
-                <filename>bblayers.conf</filename> file in the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#enabling-your-layer'>Enabling Your Layer</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-            </para>
-
-            <para>
-                The files <filename>site.conf</filename> and
-                <filename>auto.conf</filename> are not created by the
-                environment initialization script.
-                If you want the <filename>site.conf</filename> file, you
-                need to create that yourself.
-                The <filename>auto.conf</filename> file is typically created by
-                an autobuilder:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis><filename>site.conf</filename>:</emphasis>
-                        You can use the <filename>conf/site.conf</filename>
-                        configuration file to configure multiple
-                        build directories.
-                        For example, suppose you had several build environments
-                        and they shared some common features.
-                        You can set these default build properties here.
-                        A good example is perhaps the packaging format to use
-                        through the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></ulink>
-                        variable.</para>
-
-                        <para>One useful scenario for using the
-                        <filename>conf/site.conf</filename> file is to extend
-                        your
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-BBPATH'><filename>BBPATH</filename></ulink>
-                        variable to include the path to a
-                        <filename>conf/site.conf</filename>.
-                        Then, when BitBake looks for Metadata using
-                        <filename>BBPATH</filename>, it finds the
-                        <filename>conf/site.conf</filename> file and applies
-                        your common configurations found in the file.
-                        To override configurations in a particular build
-                        directory, alter the similar configurations within
-                        that build directory's
-                        <filename>conf/local.conf</filename> file.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>auto.conf</filename>:</emphasis>
-                        The file is usually created and written to by
-                        an autobuilder.
-                        The settings put into the file are typically the
-                        same as you would find in the
-                        <filename>conf/local.conf</filename> or the
-                        <filename>conf/site.conf</filename> files.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                You can edit all configuration files to further define
-                any particular build environment.
-                This process is represented by the "User Configuration Edits"
-                box in the figure.
-            </para>
-
-            <para>
-                When you launch your build with the
-                <filename>bitbake <replaceable>target</replaceable></filename>
-                command, BitBake sorts out the configurations to ultimately
-                define your build environment.
-                It is important to understand that the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>
-                reads the configuration files in a specific order:
-                <filename>site.conf</filename>, <filename>auto.conf</filename>,
-                and <filename>local.conf</filename>.
-                And, the build system applies the normal assignment statement
-                rules as described in the
-                "<ulink url='&YOCTO_DOCS_BB_URL;#bitbake-user-manual-metadata'>Syntax and Operators</ulink>"
-                chapter of the BitBake User Manual.
-                Because the files are parsed in a specific order, variable
-                assignments for the same variable could be affected.
-                For example, if the <filename>auto.conf</filename> file and
-                the <filename>local.conf</filename> set
-                <replaceable>variable1</replaceable> to different values,
-                because the build system parses <filename>local.conf</filename>
-                after <filename>auto.conf</filename>,
-                <replaceable>variable1</replaceable> is assigned the value from
-                the <filename>local.conf</filename> file.
-            </para>
-        </section>
-
-        <section id="metadata-machine-configuration-and-policy-configuration">
-            <title>Metadata, Machine Configuration, and Policy Configuration</title>
-
-            <para>
-                The previous section described the user configurations that
-                define BitBake's global behavior.
-                This section takes a closer look at the layers the build system
-                uses to further control the build.
-                These layers provide Metadata for the software, machine, and
-                policies.
-            </para>
-
-            <para>
-                In general, three types of layer input exists.
-                You can see them below the "User Configuration" box in the
-                <link linkend='general-workflow-figure'>general workflow figure</link>:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>Metadata (<filename>.bb</filename> + Patches):</emphasis>
-                        Software layers containing user-supplied recipe files,
-                        patches, and append files.
-                        A good example of a software layer might be the
-                        <ulink url='https://github.com/meta-qt5/meta-qt5'><filename>meta-qt5</filename></ulink>
-                        layer from the
-                        <ulink url='http://layers.openembedded.org/layerindex/branch/master/layers/'>OpenEmbedded Layer Index</ulink>.
-                        This layer is for version 5.0 of the popular
-                        <ulink url='https://wiki.qt.io/About_Qt'>Qt</ulink>
-                        cross-platform application development framework for
-                        desktop, embedded and mobile.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Machine BSP Configuration:</emphasis>
-                        Board Support Package (BSP) layers (i.e. "BSP Layer"
-                        in the following figure) providing machine-specific
-                        configurations.
-                        This type of information is specific to a particular
-                        target architecture.
-                        A good example of a BSP layer from the
-                        <link linkend='gs-reference-distribution-poky'>Poky Reference Distribution</link>
-                        is the
-                        <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta-yocto-bsp'><filename>meta-yocto-bsp</filename></ulink>
-                        layer.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Policy Configuration:</emphasis>
-                        Distribution Layers (i.e. "Distro Layer" in the
-                        following figure) providing top-level or general
-                        policies for the images or SDKs being built for a
-                        particular distribution.
-                        For example, in the Poky Reference Distribution the
-                        distro layer is the
-                        <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta-poky'><filename>meta-poky</filename></ulink>
-                        layer.
-                        Within the distro layer is a
-                        <filename>conf/distro</filename> directory that
-                        contains distro configuration files (e.g.
-                        <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta-poky/conf/distro/poky.conf'><filename>poky.conf</filename></ulink>
-                        that contain many policy configurations for the
-                        Poky distribution.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                The following figure shows an expanded representation of
-                these three layers from the
-                <link linkend='general-workflow-figure'>general workflow figure</link>:
-            </para>
-
-            <para>
-                <imagedata fileref="figures/layer-input.png" align="center" width="8in" depth="8in" />
-            </para>
-
-            <para>
-                In general, all layers have a similar structure.
-                They all contain a licensing file
-                (e.g. <filename>COPYING.MIT</filename>) if the layer is to be
-                distributed, a <filename>README</filename> file as good
-                practice and especially if the layer is to be distributed, a
-                configuration directory, and recipe directories.
-                You can learn about the general structure for layers used with
-                the Yocto Project in the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-your-own-layer'>Creating Your Own Layer</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-                For a general discussion on layers and the many layers from
-                which you can draw, see the
-                "<link linkend='overview-layers'>Layers</link>" and
-                "<link linkend='the-yocto-project-layer-model'>The Yocto Project Layer Model</link>"
-                sections both earlier in this manual.
-            </para>
-
-            <para>
-                If you explored the previous links, you discovered some
-                areas where many layers that work with the Yocto Project
-                exist.
-                The
-                <ulink url="http://git.yoctoproject.org/">Source Repositories</ulink>
-                also shows layers categorized under "Yocto Metadata Layers."
-                <note>
-                    Layers exist in the Yocto Project Source Repositories that
-                    cannot be found in the OpenEmbedded Layer Index.
-                    These layers are either deprecated or experimental
-                    in nature.
-                </note>
-            </para>
-
-            <para>
-                BitBake uses the <filename>conf/bblayers.conf</filename> file,
-                which is part of the user configuration, to find what layers it
-                should be using as part of the build.
-            </para>
-
-            <section id="distro-layer">
-                <title>Distro Layer</title>
-
-                <para>
-                    The distribution layer provides policy configurations for
-                    your distribution.
-                    Best practices dictate that you isolate these types of
-                    configurations into their own layer.
-                    Settings you provide in
-                    <filename>conf/distro/<replaceable>distro</replaceable>.conf</filename> override
-                    similar settings that BitBake finds in your
-                    <filename>conf/local.conf</filename> file in the Build
-                    Directory.
-                </para>
-
-                <para>
-                    The following list provides some explanation and references
-                    for what you typically find in the distribution layer:
-                    <itemizedlist>
-                        <listitem><para>
-                            <emphasis>classes:</emphasis>
-                            Class files (<filename>.bbclass</filename>) hold
-                            common functionality that can be shared among
-                            recipes in the distribution.
-                            When your recipes inherit a class, they take on the
-                            settings and functions for that class.
-                            You can read more about class files in the
-                            "<ulink url='&YOCTO_DOCS_REF_URL;#ref-classes'>Classes</ulink>"
-                            chapter of the Yocto Reference Manual.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>conf:</emphasis>
-                            This area holds configuration files for the
-                            layer (<filename>conf/layer.conf</filename>),
-                            the distribution
-                            (<filename>conf/distro/<replaceable>distro</replaceable>.conf</filename>),
-                            and any distribution-wide include files.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>recipes-*:</emphasis>
-                            Recipes and append files that affect common
-                            functionality across the distribution.
-                            This area could include recipes and append files
-                            to add distribution-specific configuration,
-                            initialization scripts, custom image recipes,
-                            and so forth.
-                            Examples of <filename>recipes-*</filename>
-                            directories are <filename>recipes-core</filename>
-                            and <filename>recipes-extra</filename>.
-                            Hierarchy and contents within a
-                            <filename>recipes-*</filename> directory can vary.
-                            Generally, these directories contain recipe files
-                            (<filename>*.bb</filename>), recipe append files
-                            (<filename>*.bbappend</filename>), directories
-                            that are distro-specific for configuration files,
-                            and so forth.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-
-            <section id="bsp-layer">
-                <title>BSP Layer</title>
-
-                <para>
-                    The BSP Layer provides machine configurations that
-                    target specific hardware.
-                    Everything in this layer is specific to the machine for
-                    which you are building the image or the SDK.
-                    A common structure or form is defined for BSP layers.
-                    You can learn more about this structure in the
-                    <ulink url='&YOCTO_DOCS_BSP_URL;'>Yocto Project Board Support Package (BSP) Developer's Guide</ulink>.
-                    <note>
-                        In order for a BSP layer to be considered compliant
-                        with the Yocto Project, it must meet some structural
-                        requirements.
-                    </note>
-                </para>
-
-                <para>
-                    The BSP Layer's configuration directory contains
-                    configuration files for the machine
-                    (<filename>conf/machine/<replaceable>machine</replaceable>.conf</filename>)
-                    and, of course, the layer
-                    (<filename>conf/layer.conf</filename>).
-                </para>
-
-                <para>
-                    The remainder of the layer is dedicated to specific recipes
-                    by function: <filename>recipes-bsp</filename>,
-                    <filename>recipes-core</filename>,
-                    <filename>recipes-graphics</filename>,
-                    <filename>recipes-kernel</filename>, and so forth.
-                    Metadata can exist for multiple formfactors, graphics
-                    support systems, and so forth.
-                    <note>
-                        While the figure shows several
-                        <filename>recipes-*</filename> directories, not all
-                        these directories appear in all BSP layers.
-                    </note>
-                </para>
-            </section>
-
-            <section id="software-layer">
-                <title>Software Layer</title>
-
-                <para>
-                    The software layer provides the Metadata for additional
-                    software packages used during the build.
-                    This layer does not include Metadata that is specific to
-                    the distribution or the machine, which are found in their
-                    respective layers.
-                </para>
-
-                <para>
-                    This layer contains any recipes, append files, and
-                    patches, that your project needs.
-                </para>
-            </section>
-        </section>
-
-        <section id="sources-dev-environment">
-            <title>Sources</title>
-
-            <para>
-                In order for the OpenEmbedded build system to create an
-                image or any target, it must be able to access source files.
-                The
-                <link linkend='general-workflow-figure'>general workflow figure</link>
-                represents source files using the "Upstream Project Releases",
-                "Local Projects", and "SCMs (optional)" boxes.
-                The figure represents mirrors, which also play a role in
-                locating source files, with the "Source Materials" box.
-            </para>
-
-            <para>
-                The method by which source files are ultimately organized is
-                a function of the project.
-                For example, for released software, projects tend to use
-                tarballs or other archived files that can capture the
-                state of a release guaranteeing that it is statically
-                represented.
-                On the other hand, for a project that is more dynamic or
-                experimental in nature, a project might keep source files in a
-                repository controlled by a Source Control Manager (SCM) such as
-                Git.
-                Pulling source from a repository allows you to control
-                the point in the repository (the revision) from which you
-                want to build software.
-                Finally, a combination of the two might exist, which would
-                give the consumer a choice when deciding where to get
-                source files.
-            </para>
-
-            <para>
-                BitBake uses the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                variable to point to source files regardless of their location.
-                Each recipe must have a <filename>SRC_URI</filename> variable
-                that points to the source.
-            </para>
-
-            <para>
-                Another area that plays a significant role in where source
-                files come from is pointed to by the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-DL_DIR'><filename>DL_DIR</filename></ulink>
-                variable.
-                This area is a cache that can hold previously downloaded
-                source.
-                You can also instruct the OpenEmbedded build system to create
-                tarballs from Git repositories, which is not the default
-                behavior, and store them in the <filename>DL_DIR</filename>
-                by using the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-BB_GENERATE_MIRROR_TARBALLS'><filename>BB_GENERATE_MIRROR_TARBALLS</filename></ulink>
-                variable.
-            </para>
-
-            <para>
-                Judicious use of a <filename>DL_DIR</filename> directory can
-                save the build system a trip across the Internet when looking
-                for files.
-                A good method for using a download directory is to have
-                <filename>DL_DIR</filename> point to an area outside of your
-                Build Directory.
-                Doing so allows you to safely delete the Build Directory
-                if needed without fear of removing any downloaded source file.
-            </para>
-
-            <para>
-                The remainder of this section provides a deeper look into the
-                source files and the mirrors.
-                Here is a more detailed look at the source file area of the
-                <link linkend='general-workflow-figure'>general workflow figure</link>:
-            </para>
-
-            <para>
-                <imagedata fileref="figures/source-input.png" width="6in" depth="6in" align="center" />
-            </para>
-
-            <section id='upstream-project-releases'>
-                <title>Upstream Project Releases</title>
-
-                <para>
-                    Upstream project releases exist anywhere in the form of an
-                    archived file (e.g. tarball or zip file).
-                    These files correspond to individual recipes.
-                    For example, the figure uses specific releases each for
-                    BusyBox, Qt, and Dbus.
-                    An archive file can be for any released product that can be
-                    built using a recipe.
-                </para>
-            </section>
-
-            <section id='local-projects'>
-                <title>Local Projects</title>
-
-                <para>
-                    Local projects are custom bits of software the user
-                    provides.
-                    These bits reside somewhere local to a project - perhaps
-                    a directory into which the user checks in items (e.g.
-                    a local directory containing a development source tree
-                    used by the group).
-                </para>
-
-                <para>
-                    The canonical method through which to include a local
-                    project is to use the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-externalsrc'><filename>externalsrc</filename></ulink>
-                    class to include that local project.
-                    You use either the <filename>local.conf</filename> or a
-                    recipe's append file to override or set the
-                    recipe to point to the local directory on your disk to pull
-                    in the whole source tree.
-                </para>
-            </section>
-
-            <section id='scms'>
-                <title>Source Control Managers (Optional)</title>
-
-                <para>
-                    Another place from which the build system can get source
-                    files is with
-                    <ulink url='&YOCTO_DOCS_BB_URL;#bb-fetchers'>fetchers</ulink>
-                    employing various Source Control Managers (SCMs) such as
-                    Git or Subversion.
-                    In such cases, a repository is cloned or checked out.
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-fetch'><filename>do_fetch</filename></ulink>
-                    task inside BitBake uses
-                    the <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                    variable and the argument's prefix to determine the correct
-                    fetcher module.
-                    <note>
-                        For information on how to have the OpenEmbedded build
-                        system generate tarballs for Git repositories and place
-                        them in the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DL_DIR'><filename>DL_DIR</filename></ulink>
-                        directory, see the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-BB_GENERATE_MIRROR_TARBALLS'><filename>BB_GENERATE_MIRROR_TARBALLS</filename></ulink>
-                        variable in the Yocto Project Reference Manual.
-                    </note>
-                </para>
-
-                <para>
-                    When fetching a repository, BitBake uses the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SRCREV'><filename>SRCREV</filename></ulink>
-                    variable to determine the specific revision from which to
-                    build.
-                </para>
-            </section>
-
-            <section id='source-mirrors'>
-                <title>Source Mirror(s)</title>
-
-                <para>
-                    Two kinds of mirrors exist: pre-mirrors and regular
-                    mirrors.
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PREMIRRORS'><filename>PREMIRRORS</filename></ulink>
-                    and
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-MIRRORS'><filename>MIRRORS</filename></ulink>
-                    variables point to these, respectively.
-                    BitBake checks pre-mirrors before looking upstream for any
-                    source files.
-                    Pre-mirrors are appropriate when you have a shared
-                    directory that is not a directory defined by the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-DL_DIR'><filename>DL_DIR</filename></ulink>
-                    variable.
-                    A Pre-mirror typically points to a shared directory that is
-                    local to your organization.
-                </para>
-
-                <para>
-                    Regular mirrors can be any site across the Internet
-                    that is used as an alternative location for source
-                    code should the primary site not be functioning for
-                    some reason or another.
-                </para>
-            </section>
-        </section>
-
-        <section id="package-feeds-dev-environment">
-            <title>Package Feeds</title>
-
-            <para>
-                When the OpenEmbedded build system generates an image or an
-                SDK, it gets the packages from a package feed area located
-                in the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                The
-                <link linkend='general-workflow-figure'>general workflow figure</link>
-                shows this package feeds area in the upper-right corner.
-            </para>
-
-            <para>
-                This section looks a little closer into the package feeds
-                area used by the build system.
-                Here is a more detailed look at the area:
-                <imagedata fileref="figures/package-feeds.png" align="center" width="7in" depth="6in" />
-            </para>
-
-            <para>
-                Package feeds are an intermediary step in the build process.
-                The OpenEmbedded build system provides classes to generate
-                different package types, and you specify which classes to
-                enable through the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></ulink>
-                variable.
-                Before placing the packages into package feeds,
-                the build process validates them with generated output quality
-                assurance checks through the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-insane'><filename>insane</filename></ulink>
-                class.
-            </para>
-
-            <para>
-                The package feed area resides in the Build Directory.
-                The directory the build system uses to temporarily store
-                packages is determined by a combination of variables and the
-                particular package manager in use.
-                See the "Package Feeds" box in the illustration and note the
-                information to the right of that area.
-                In particular, the following defines where package files are
-                kept:
-                <itemizedlist>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPLOY_DIR'><filename>DEPLOY_DIR</filename></ulink>:
-                        Defined as <filename>tmp/deploy</filename> in the Build
-                        Directory.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>DEPLOY_DIR_*</filename>:
-                        Depending on the package manager used, the package type
-                        sub-folder.
-                        Given RPM, IPK, or DEB packaging and tarball creation,
-                        the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPLOY_DIR_RPM'><filename>DEPLOY_DIR_RPM</filename></ulink>,
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPLOY_DIR_IPK'><filename>DEPLOY_DIR_IPK</filename></ulink>,
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPLOY_DIR_DEB'><filename>DEPLOY_DIR_DEB</filename></ulink>,
-                        or
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPLOY_DIR_TAR'><filename>DEPLOY_DIR_TAR</filename></ulink>,
-                        variables are used, respectively.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_ARCH'><filename>PACKAGE_ARCH</filename></ulink>:
-                        Defines architecture-specific sub-folders.
-                        For example, packages could exist for the i586 or
-                        qemux86 architectures.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                BitBake uses the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package_write_deb'><filename>do_package_write_*</filename></ulink>
-                tasks to generate packages and place them into the package
-                holding area (e.g. <filename>do_package_write_ipk</filename>
-                for IPK packages).
-                See the
-                "<ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package_write_deb'><filename>do_package_write_deb</filename></ulink>",
-                "<ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package_write_ipk'><filename>do_package_write_ipk</filename></ulink>",
-                "<ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package_write_rpm'><filename>do_package_write_rpm</filename></ulink>",
-                and
-                "<ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package_write_tar'><filename>do_package_write_tar</filename></ulink>"
-                sections in the Yocto Project Reference Manual
-                for additional information.
-                As an example, consider a scenario where an IPK packaging
-                manager is being used and package architecture support for
-                both i586 and qemux86 exist.
-                Packages for the i586 architecture are placed in
-                <filename>build/tmp/deploy/ipk/i586</filename>, while packages
-                for the qemux86 architecture are placed in
-                <filename>build/tmp/deploy/ipk/qemux86</filename>.
-            </para>
-        </section>
-
-        <section id='bitbake-dev-environment'>
-            <title>BitBake</title>
-
-            <para>
-                The OpenEmbedded build system uses
-                <ulink url='&YOCTO_DOCS_REF_URL;#bitbake-term'>BitBake</ulink>
-                to produce images and Software Development Kits (SDKs).
-                You can see from the
-                <link linkend='general-workflow-figure'>general workflow figure</link>,
-                the BitBake area consists of several functional areas.
-                This section takes a closer look at each of those areas.
-                <note>
-                    Separate documentation exists for the BitBake tool.
-                    See the
-                    <ulink url='&YOCTO_DOCS_BB_URL;'>BitBake User Manual</ulink>
-                    for reference material on BitBake.
-                </note>
-            </para>
-
-            <section id='source-fetching-dev-environment'>
-                <title>Source Fetching</title>
-
-                <para>
-                    The first stages of building a recipe are to fetch and
-                    unpack the source code:
-                    <imagedata fileref="figures/source-fetching.png" align="center" width="6.5in" depth="5in" />
-                </para>
-
-                <para>
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-fetch'><filename>do_fetch</filename></ulink>
-                    and
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-unpack'><filename>do_unpack</filename></ulink>
-                    tasks fetch the source files and unpack them into the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                    <note>
-                        For every local file (e.g. <filename>file://</filename>)
-                        that is part of a recipe's
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                        statement, the OpenEmbedded build system takes a
-                        checksum of the file for the recipe and inserts the
-                        checksum into the signature for the
-                        <filename>do_fetch</filename> task.
-                        If any local file has been modified, the
-                        <filename>do_fetch</filename> task and all tasks that
-                        depend on it are re-executed.
-                    </note>
-                    By default, everything is accomplished in the Build
-                    Directory, which has a defined structure.
-                    For additional general information on the Build Directory,
-                    see the
-                    "<ulink url='&YOCTO_DOCS_REF_URL;#structure-core-build'><filename>build/</filename></ulink>"
-                    section in the Yocto Project Reference Manual.
-                </para>
-
-                <para>
-                    Each recipe has an area in the Build Directory where the
-                    unpacked source code resides.
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-S'><filename>S</filename></ulink>
-                    variable points to this area for a recipe's unpacked source
-                    code.
-                    The name of that directory for any given recipe is defined
-                    from several different variables.
-                    The preceding figure and the following list describe
-                    the Build Directory's hierarchy:
-                    <itemizedlist>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-TMPDIR'><filename>TMPDIR</filename></ulink>:
-                            The base directory where the OpenEmbedded build
-                            system performs all its work during the build.
-                            The default base directory is the
-                            <filename>tmp</filename> directory.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_ARCH'><filename>PACKAGE_ARCH</filename></ulink>:
-                            The architecture of the built package or packages.
-                            Depending on the eventual destination of the
-                            package or packages (i.e. machine architecture,
-                            <ulink url='&YOCTO_DOCS_REF_URL;#hardware-build-system-term'>build host</ulink>,
-                            SDK, or specific machine),
-                            <filename>PACKAGE_ARCH</filename> varies.
-                            See the variable's description for details.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-TARGET_OS'><filename>TARGET_OS</filename></ulink>:
-                            The operating system of the target device.
-                            A typical value would be "linux" (e.g.
-                            "qemux86-poky-linux").
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink>:
-                            The name of the recipe used to build the package.
-                            This variable can have multiple meanings.
-                            However, when used in the context of input files,
-                            <filename>PN</filename> represents the the name
-                            of the recipe.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink>:
-                            The location where the OpenEmbedded build system
-                            builds a recipe (i.e. does the work to create the
-                            package).
-                            <itemizedlist>
-                                <listitem><para>
-                                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>:
-                                    The version of the recipe used to build the
-                                    package.
-                                    </para></listitem>
-                                <listitem><para>
-                                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PR'><filename>PR</filename></ulink>:
-                                    The revision of the recipe used to build the
-                                    package.
-                                    </para></listitem>
-                            </itemizedlist>
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-S'><filename>S</filename></ulink>:
-                            Contains the unpacked source files for a given
-                            recipe.
-                            <itemizedlist>
-                                <listitem><para>
-                                    <ulink url='&YOCTO_DOCS_REF_URL;#var-BPN'><filename>BPN</filename></ulink>:
-                                    The name of the recipe used to build the
-                                    package.
-                                    The <filename>BPN</filename> variable is
-                                    a version of the <filename>PN</filename>
-                                    variable but with common prefixes and
-                                    suffixes removed.
-                                    </para></listitem>
-                                <listitem><para>
-                                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>:
-                                    The version of the recipe used to build the
-                                    package.
-                                    </para></listitem>
-                            </itemizedlist>
-                            </para></listitem>
-                    </itemizedlist>
-                    <note>
-                        In the previous figure, notice that two sample
-                        hierarchies exist: one based on package architecture (i.e.
-                        <filename>PACKAGE_ARCH</filename>) and one based on a
-                        machine (i.e. <filename>MACHINE</filename>).
-                        The underlying structures are identical.
-                        The differentiator being what the OpenEmbedded build
-                        system is using as a build target (e.g. general
-                        architecture, a build host, an SDK, or a specific
-                        machine).
-                    </note>
-                </para>
-            </section>
-
-            <section id='patching-dev-environment'>
-                <title>Patching</title>
-
-                <para>
-                    Once source code is fetched and unpacked, BitBake locates
-                    patch files and applies them to the source files:
-                    <imagedata fileref="figures/patching.png" align="center" width="7in" depth="6in" />
-                </para>
-
-                <para>
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-patch'><filename>do_patch</filename></ulink>
-                    task uses a recipe's
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                    statements and the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESPATH'><filename>FILESPATH</filename></ulink>
-                    variable to locate applicable patch files.
-                </para>
-
-                <para>
-                    Default processing for patch files assumes the files have
-                    either <filename>*.patch</filename> or
-                    <filename>*.diff</filename> file types.
-                    You can use <filename>SRC_URI</filename> parameters to
-                    change the way the build system recognizes patch files.
-                    See the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-patch'><filename>do_patch</filename></ulink>
-                    task for more information.
-                </para>
-
-                <para>
-                    BitBake finds and applies multiple patches for a single
-                    recipe in the order in which it locates the patches.
-                    The <filename>FILESPATH</filename> variable defines the
-                    default set of directories that the build system uses to
-                    search for patch files.
-                    Once found, patches are applied to the recipe's source
-                    files, which are located in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-S'><filename>S</filename></ulink>
-                    directory.
-                </para>
-
-                <para>
-                    For more information on how the source directories are
-                    created, see the
-                    "<link linkend='source-fetching-dev-environment'>Source Fetching</link>"
-                    section.
-                    For more information on how to create patches and how the
-                    build system processes patches, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#new-recipe-patching-code'>Patching Code</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    You can also see the
-                    "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-devtool-use-devtool-modify-to-modify-the-source-of-an-existing-component'>Use <filename>devtool modify</filename> to Modify the Source of an Existing Component</ulink>"
-                    section in the Yocto Project Application Development and
-                    the Extensible Software Development Kit (SDK) manual and
-                    the
-                    "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#using-traditional-kernel-development-to-patch-the-kernel'>Using Traditional Kernel Development to Patch the Kernel</ulink>"
-                    section in the Yocto Project Linux Kernel Development
-                    Manual.
-                </para>
-            </section>
-
-            <section id='configuration-compilation-and-staging-dev-environment'>
-                <title>Configuration, Compilation, and Staging</title>
-
-                <para>
-                    After source code is patched, BitBake executes tasks that
-                    configure and compile the source code.
-                    Once compilation occurs, the files are copied to a holding
-                    area (staged) in preparation for packaging:
-                    <imagedata fileref="figures/configuration-compile-autoreconf.png" align="center" width="7in" depth="5in" />
-                </para>
-
-                <para>
-                    This step in the build process consists of the following
-                    tasks:
-                    <itemizedlist>
-                        <listitem><para>
-                            <emphasis><ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-prepare_recipe_sysroot'><filename>do_prepare_recipe_sysroot</filename></ulink></emphasis>:
-                            This task sets up the two sysroots in
-                            <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink><filename>}</filename>
-                            (i.e. <filename>recipe-sysroot</filename> and
-                            <filename>recipe-sysroot-native</filename>) so that
-                            during the packaging phase the sysroots can contain
-                            the contents of the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></ulink>
-                            tasks of the recipes on which the recipe
-                            containing the tasks depends.
-                            A sysroot exists for both the target and for the
-                            native binaries, which run on the host system.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis><filename>do_configure</filename></emphasis>:
-                            This task configures the source by enabling and
-                            disabling any build-time and configuration options
-                            for the software being built.
-                            Configurations can come from the recipe itself as
-                            well as from an inherited class.
-                            Additionally, the software itself might configure
-                            itself depending on the target for which it is
-                            being built.</para>
-
-                            <para>The configurations handled by the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-configure'><filename>do_configure</filename></ulink>
-                            task are specific to configurations for the source
-                            code being built by the recipe.</para>
-
-                            <para>If you are using the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-autotools'><filename>autotools</filename></ulink>
-                            class, you can add additional configuration options
-                            by using the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_OECONF'><filename>EXTRA_OECONF</filename></ulink>
-                            or
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGECONFIG_CONFARGS'><filename>PACKAGECONFIG_CONFARGS</filename></ulink>
-                            variables.
-                            For information on how this variable works within
-                            that class, see the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-autotools'><filename>autotools</filename></ulink>
-                            class
-                            <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta/classes/autotools.bbclass'>here</ulink>.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis><filename>do_compile</filename></emphasis>:
-                            Once a configuration task has been satisfied,
-                            BitBake compiles the source using the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-compile'><filename>do_compile</filename></ulink>
-                            task.
-                            Compilation occurs in the directory pointed to by
-                            the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-B'><filename>B</filename></ulink>
-                            variable.
-                            Realize that the <filename>B</filename> directory
-                            is, by default, the same as the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-S'><filename>S</filename></ulink>
-                            directory.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis><filename>do_install</filename></emphasis>:
-                            After compilation completes, BitBake executes the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>
-                            task.
-                            This task copies files from the
-                            <filename>B</filename> directory and places them
-                            in a holding area pointed to by the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-D'><filename>D</filename></ulink>
-                            variable.
-                            Packaging occurs later using files from this
-                            holding directory.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </section>
-
-            <section id='package-splitting-dev-environment'>
-                <title>Package Splitting</title>
-
-                <para>
-                    After source code is configured, compiled, and staged, the
-                    build system analyzes the results and splits the output
-                    into packages:
-                    <imagedata fileref="figures/analysis-for-package-splitting.png" align="center" width="7in" depth="7in" />
-                </para>
-
-                <para>
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package'><filename>do_package</filename></ulink>
-                    and
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-packagedata'><filename>do_packagedata</filename></ulink>
-                    tasks combine to analyze the files found in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-D'><filename>D</filename></ulink>
-                    directory and split them into subsets based on available
-                    packages and files.
-                    Analysis involves the following as well as other items:
-                    splitting out debugging symbols, looking at shared library
-                    dependencies between packages, and looking at package
-                    relationships.
-                </para>
-
-                <para>
-                    The <filename>do_packagedata</filename> task creates
-                    package metadata based on the analysis such that the
-                    build system can generate the final packages.
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></ulink>
-                    task stages (copies) a subset of the files installed by
-                    the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>
-                    task into the appropriate sysroot.
-                    Working, staged, and intermediate results of the analysis
-                    and package splitting process use several areas:
-                    <itemizedlist>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PKGD'><filename>PKGD</filename></ulink>:
-                            The destination directory
-                            (i.e. <filename>package</filename>) for packages
-                            before they are split into individual packages.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PKGDESTWORK'><filename>PKGDESTWORK</filename></ulink>:
-                            A temporary work area (i.e.
-                            <filename>pkgdata</filename>) used by the
-                            <filename>do_package</filename> task to save
-                            package metadata.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PKGDEST'><filename>PKGDEST</filename></ulink>:
-                            The parent directory (i.e.
-                            <filename>packages-split</filename>) for packages
-                            after they have been split.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PKGDATA_DIR'><filename>PKGDATA_DIR</filename></ulink>:
-                            A shared, global-state directory that holds
-                            packaging metadata generated during the packaging
-                            process.
-                            The packaging process copies metadata from
-                            <filename>PKGDESTWORK</filename> to the
-                            <filename>PKGDATA_DIR</filename> area where it
-                            becomes globally available.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-STAGING_DIR_HOST'><filename>STAGING_DIR_HOST</filename></ulink>:
-                            The path for the sysroot for the system on which
-                            a component is built to run (i.e.
-                            <filename>recipe-sysroot</filename>).
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-STAGING_DIR_NATIVE'><filename>STAGING_DIR_NATIVE</filename></ulink>:
-                            The path for the sysroot used when building
-                            components for the build host (i.e.
-                            <filename>recipe-sysroot-native</filename>).
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-STAGING_DIR_TARGET'><filename>STAGING_DIR_TARGET</filename></ulink>:
-                            The path for the sysroot used when a component that
-                            is built to execute on a system and it generates
-                            code for yet another machine (e.g. cross-canadian
-                            recipes).
-                            </para></listitem>
-                    </itemizedlist>
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-FILES'><filename>FILES</filename></ulink>
-                    variable defines the files that go into each package in
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGES'><filename>PACKAGES</filename></ulink>.
-                    If you want details on how this is accomplished, you can
-                    look at
-                    <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta/classes/package.bbclass'><filename>package.bbclass</filename></ulink>.
-                </para>
-
-                <para>
-                    Depending on the type of packages being created (RPM, DEB,
-                    or IPK), the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package_write_deb'><filename>do_package_write_*</filename></ulink>
-                    task creates the actual packages and places them in the
-                    Package Feed area, which is
-                    <filename>${TMPDIR}/deploy</filename>.
-                    You can see the
-                    "<link linkend='package-feeds-dev-environment'>Package Feeds</link>"
-                    section for more detail on that part of the build process.
-                    <note>
-                        Support for creating feeds directly from the
-                        <filename>deploy/*</filename> directories does not
-                        exist.
-                        Creating such feeds usually requires some kind of feed
-                        maintenance mechanism that would upload the new
-                        packages into an official package feed (e.g. the
-                        Ångström distribution).
-                        This functionality is highly distribution-specific
-                        and thus is not provided out of the box.
-                    </note>
-                </para>
-            </section>
-
-            <section id='image-generation-dev-environment'>
-                <title>Image Generation</title>
-
-                <para>
-                    Once packages are split and stored in the Package Feeds
-                    area, the build system uses BitBake to generate the root
-                    filesystem image:
-                    <imagedata fileref="figures/image-generation.png" align="center" width="7.5in" depth="7.5in" />
-                </para>
-
-                <para>
-                    The image generation process consists of several stages and
-                    depends on several tasks and variables.
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-rootfs'><filename>do_rootfs</filename></ulink>
-                    task creates the root filesystem (file and directory
-                    structure) for an image.
-                    This task uses several key variables to help create the
-                    list of packages to actually install:
-                    <itemizedlist>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_INSTALL'><filename>IMAGE_INSTALL</filename></ulink>:
-                            Lists out the base set of packages from which to
-                            install from the Package Feeds area.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_EXCLUDE'><filename>PACKAGE_EXCLUDE</filename></ulink>:
-                            Specifies packages that should not be installed
-                            into the image.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></ulink>:
-                            Specifies features to include in the image.
-                            Most of these features map to additional packages
-                            for installation.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></ulink>:
-                            Specifies the package backend (e.g. RPM, DEB, or
-                            IPK) to use and consequently helps determine where
-                            to locate packages within the Package Feeds area.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_LINGUAS'><filename>IMAGE_LINGUAS</filename></ulink>:
-                            Determines the language(s) for which additional
-                            language support packages are installed.
-                            </para></listitem>
-                        <listitem><para>
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_INSTALL'><filename>PACKAGE_INSTALL</filename></ulink>:
-                            The final list of packages passed to the package
-                            manager for installation into the image.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    With
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_ROOTFS'><filename>IMAGE_ROOTFS</filename></ulink>
-                    pointing to the location of the filesystem under
-                    construction and the <filename>PACKAGE_INSTALL</filename>
-                    variable providing the final list of packages to install,
-                    the root file system is created.
-                </para>
-
-                <para>
-                    Package installation is under control of the package
-                    manager (e.g. dnf/rpm, opkg, or apt/dpkg) regardless of
-                    whether or not package management is enabled for the
-                    target.
-                    At the end of the process, if package management is not
-                    enabled for the target, the package manager's data files
-                    are deleted from the root filesystem.
-                    As part of the final stage of package installation,
-                    post installation scripts that are part of the packages
-                    are run.
-                    Any scripts that fail to run on the build host are run on
-                    the target when the target system is first booted.
-                    If you are using a
-                    <ulink url='&YOCTO_DOCS_DEV_URL;#creating-a-read-only-root-filesystem'>read-only root filesystem</ulink>,
-                    all the post installation scripts must succeed on the
-                    build host during the package installation phase since the
-                    root filesystem on the target is read-only.
-                </para>
-
-                <para>
-                    The final stages of the <filename>do_rootfs</filename> task
-                    handle post processing.
-                    Post processing includes creation of a manifest file and
-                    optimizations.
-                </para>
-
-                <para>
-                    The manifest file (<filename>.manifest</filename>) resides
-                    in the same directory as the root filesystem image.
-                    This file lists out, line-by-line, the installed packages.
-                    The manifest file is useful for the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-testimage*'><filename>testimage</filename></ulink>
-                    class, for example, to determine whether or not to run
-                    specific tests.
-                    See the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_MANIFEST'><filename>IMAGE_MANIFEST</filename></ulink>
-                    variable for additional information.
-                </para>
-
-                <para>
-                    Optimizing processes that are run across the image include
-                    <filename>mklibs</filename>, <filename>prelink</filename>,
-                    and any other post-processing commands as defined by the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-ROOTFS_POSTPROCESS_COMMAND'><filename>ROOTFS_POSTPROCESS_COMMAND</filename></ulink>
-                    variable.
-                    The <filename>mklibs</filename> process optimizes the size
-                    of the libraries, while the <filename>prelink</filename>
-                    process optimizes the dynamic linking of shared libraries
-                    to reduce start up time of executables.
-                </para>
-
-                <para>
-                    After the root filesystem is built, processing begins on
-                    the image through the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-image'><filename>do_image</filename></ulink>
-                    task.
-                    The build system runs any pre-processing commands as
-                    defined by the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_PREPROCESS_COMMAND'><filename>IMAGE_PREPROCESS_COMMAND</filename></ulink>
-                    variable.
-                    This variable specifies a list of functions to call before
-                    the build system creates the final image output files.
-                </para>
-
-                <para>
-                    The build system dynamically creates
-                    <filename>do_image_*</filename> tasks as needed, based
-                    on the image types specified in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></ulink>
-                    variable.
-                    The process turns everything into an image file or a set of
-                    image files and can compress the root filesystem image to
-                    reduce the overall size of the image.
-                    The formats used for the root filesystem depend on the
-                    <filename>IMAGE_FSTYPES</filename> variable.
-                    Compression depends on whether the formats support
-                    compression.
-                </para>
-
-                <para>
-                    As an example, a dynamically created task when creating a
-                    particular image <replaceable>type</replaceable> would
-                    take the following form:
-                    <literallayout class='monospaced'>
-     do_image_<replaceable>type</replaceable>
-                    </literallayout>
-                    So, if the <replaceable>type</replaceable> as specified by
-                    the <filename>IMAGE_FSTYPES</filename> were
-                    <filename>ext4</filename>, the dynamically generated task
-                    would be as follows:
-                    <literallayout class='monospaced'>
-     do_image_ext4
-                    </literallayout>
-                </para>
-
-                <para>
-                    The final task involved in image creation is the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-image-complete'><filename>do_image_complete</filename></ulink>
-                    task.
-                    This task completes the image by applying any image
-                    post processing as defined through the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_POSTPROCESS_COMMAND'><filename>IMAGE_POSTPROCESS_COMMAND</filename></ulink>
-                    variable.
-                    The variable specifies a list of functions to call once the
-                    build system has created the final image output files.
-                    <note>
-                        The entire image generation process is run under
-                        <link linkend='fakeroot-and-pseudo'>Pseudo</link>.
-                        Running under Pseudo ensures that the files in the
-                        root filesystem have correct ownership.
-                    </note>
-                </para>
-            </section>
-
-            <section id='sdk-generation-dev-environment'>
-                <title>SDK Generation</title>
-
-                <para>
-                    The OpenEmbedded build system uses BitBake to generate the
-                    Software Development Kit (SDK) installer scripts for both
-                    the standard SDK and the extensible SDK (eSDK):
-                </para>
-
-                <para>
-                    <imagedata fileref="figures/sdk-generation.png" width="9in" align="center" />
-                    <note>
-                        For more information on the cross-development toolchain
-                        generation, see the
-                        "<link linkend='cross-development-toolchain-generation'>Cross-Development Toolchain Generation</link>"
-                        section.
-                        For information on advantages gained when building a
-                        cross-development toolchain using the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-populate_sdk'><filename>do_populate_sdk</filename></ulink>
-                        task, see the
-                        "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-building-an-sdk-installer'>Building an SDK Installer</ulink>"
-                        section in the Yocto Project Application Development
-                        and the Extensible Software Development Kit (eSDK)
-                        manual.
-                    </note>
-                </para>
-
-                <para>
-                    Like image generation, the SDK script process consists of
-                    several stages and depends on many variables.
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-populate_sdk'><filename>do_populate_sdk</filename></ulink>
-                    and
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-populate_sdk_ext'><filename>do_populate_sdk_ext</filename></ulink>
-                    tasks use these key variables to help create the list of
-                    packages to actually install.
-                    For information on the variables listed in the figure,
-                    see the
-                    "<link linkend='sdk-dev-environment'>Application Development SDK</link>"
-                    section.
-                </para>
-
-                <para>
-                    The <filename>do_populate_sdk</filename> task helps create
-                    the standard SDK and handles two parts: a target part and a
-                    host part.
-                    The target part is the part built for the target hardware
-                    and includes libraries and headers.
-                    The host part is the part of the SDK that runs on the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SDKMACHINE'><filename>SDKMACHINE</filename></ulink>.
-                </para>
-
-                <para>
-                    The <filename>do_populate_sdk_ext</filename> task helps
-                    create the extensible SDK and handles host and target parts
-                    differently than its counter part does for the standard SDK.
-                    For the extensible SDK, the task encapsulates the build
-                    system, which includes everything needed (host and target)
-                    for the SDK.
-                </para>
-
-                <para>
-                    Regardless of the type of SDK being constructed, the
-                    tasks perform some cleanup after which a cross-development
-                    environment setup script and any needed configuration files
-                    are created.
-                    The final output is the Cross-development
-                    toolchain installation script (<filename>.sh</filename>
-                    file), which includes the environment setup script.
-                </para>
-            </section>
-
-            <section id='stamp-files-and-the-rerunning-of-tasks'>
-                <title>Stamp Files and the Rerunning of Tasks</title>
-
-                <para>
-                    For each task that completes successfully, BitBake writes a
-                    stamp file into the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-STAMPS_DIR'><filename>STAMPS_DIR</filename></ulink>
-                    directory.
-                    The beginning of the stamp file's filename is determined
-                    by the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-STAMP'><filename>STAMP</filename></ulink>
-                    variable, and the end of the name consists of the task's
-                    name and current
-                    <link linkend='overview-checksums'>input checksum</link>.
-                    <note>
-                        This naming scheme assumes that
-                        <ulink url='&YOCTO_DOCS_BB_URL;#var-BB_SIGNATURE_HANDLER'><filename>BB_SIGNATURE_HANDLER</filename></ulink>
-                        is "OEBasicHash", which is almost always the case in
-                        current OpenEmbedded.
-                    </note>
-                    To determine if a task needs to be rerun, BitBake checks
-                    if a stamp file with a matching input checksum exists
-                    for the task.
-                    If such a stamp file exists, the task's output is
-                    assumed to exist and still be valid.
-                    If the file does not exist, the task is rerun.
-                    <note>
-                        <para>The stamp mechanism is more general than the
-                        shared state (sstate) cache mechanism described in the
-                        "<link linkend='setscene-tasks-and-shared-state'>Setscene Tasks and Shared State</link>"
-                        section.
-                        BitBake avoids rerunning any task that has a valid
-                        stamp file, not just tasks that can be accelerated
-                        through the sstate cache.</para>
-
-                        <para>However, you should realize that stamp files only
-                        serve as a marker that some work has been done and that
-                        these files do not record task output.
-                        The actual task output would usually be somewhere in
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-TMPDIR'><filename>TMPDIR</filename></ulink>
-                        (e.g. in some recipe's
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink>.)
-                        What the sstate cache mechanism adds is a way to cache
-                        task output that can then be shared between build
-                        machines.</para>
-                    </note>
-                    Since <filename>STAMPS_DIR</filename> is usually a
-                    subdirectory of <filename>TMPDIR</filename>, removing
-                    <filename>TMPDIR</filename> will also remove
-                    <filename>STAMPS_DIR</filename>, which means tasks will
-                    properly be rerun to repopulate
-                    <filename>TMPDIR</filename>.
-                </para>
-
-                <para>
-                    If you want some task to always be considered "out of
-                    date", you can mark it with the
-                    <ulink url='&YOCTO_DOCS_BB_URL;#variable-flags'><filename>nostamp</filename></ulink>
-                    varflag.
-                    If some other task depends on such a task, then that
-                    task will also always be considered out of date, which
-                    might not be what you want.
-                </para>
-
-                <para>
-                    For details on how to view information about a task's
-                    signature, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-viewing-task-variable-dependencies'>Viewing Task Variable Dependencies</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </section>
-
-            <section id='setscene-tasks-and-shared-state'>
-                <title>Setscene Tasks and Shared State</title>
-
-                <para>
-                    The description of tasks so far assumes that BitBake needs
-                    to build everything and no available prebuilt objects
-                    exist.
-                    BitBake does support skipping tasks if prebuilt objects are
-                    available.
-                    These objects are usually made available in the form of a
-                    shared state (sstate) cache.
-                    <note>
-                        For information on variables affecting sstate, see the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SSTATE_DIR'><filename>SSTATE_DIR</filename></ulink>
-                        and
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SSTATE_MIRRORS'><filename>SSTATE_MIRRORS</filename></ulink>
-                        variables.
-                    </note>
-                </para>
-
-                <para>
-                    The idea of a setscene task (i.e
-                    <filename>do_</filename><replaceable>taskname</replaceable><filename>_setscene</filename>)
-                    is a version of the task where
-                    instead of building something, BitBake can skip to the end
-                    result and simply place a set of files into specific
-                    locations as needed.
-                    In some cases, it makes sense to have a setscene task
-                    variant (e.g. generating package files in the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package_write_deb'><filename>do_package_write_*</filename></ulink>
-                    task).
-                    In other cases, it does not make sense (e.g. a
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-patch'><filename>do_patch</filename></ulink>
-                    task or a
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-unpack'><filename>do_unpack</filename></ulink>
-                    task) since the work involved would be equal to or greater
-                    than the underlying task.
-                </para>
-
-                <para>
-                    In the build system, the common tasks that have setscene
-                    variants are
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package'><filename>do_package</filename></ulink>,
-                    <filename>do_package_write_*</filename>,
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-deploy'><filename>do_deploy</filename></ulink>,
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-packagedata'><filename>do_packagedata</filename></ulink>,
-                    and
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></ulink>.
-                    Notice that these tasks represent most of the tasks whose
-                    output is an end result.
-                </para>
-
-                <para>
-                    The build system has knowledge of the relationship between
-                    these tasks and other preceding tasks.
-                    For example, if BitBake runs
-                    <filename>do_populate_sysroot_setscene</filename> for
-                    something, it does not make sense to run any of the
-                    <filename>do_fetch</filename>,
-                    <filename>do_unpack</filename>,
-                    <filename>do_patch</filename>,
-                    <filename>do_configure</filename>,
-                    <filename>do_compile</filename>, and
-                    <filename>do_install</filename> tasks.
-                    However, if <filename>do_package</filename> needs to be
-                    run, BitBake needs to run those other tasks.
-                </para>
-
-                <para>
-                    It becomes more complicated if everything can come
-                    from an sstate cache because some objects are simply
-                    not required at all.
-                    For example, you do not need a compiler or native tools,
-                    such as quilt, if nothing exists to compile or patch.
-                    If the <filename>do_package_write_*</filename> packages
-                    are available from sstate, BitBake does not need the
-                    <filename>do_package</filename> task data.
-                </para>
-
-                <para>
-                    To handle all these complexities, BitBake runs in two
-                    phases.
-                    The first is the "setscene" stage.
-                    During this stage, BitBake first checks the sstate cache
-                    for any targets it is planning to build.
-                    BitBake does a fast check to see if the object exists
-                    rather than a complete download.
-                    If nothing exists, the second phase, which is the setscene
-                    stage, completes and the main build proceeds.
-                </para>
-
-                <para>
-                    If objects are found in the sstate cache, the build system
-                    works backwards from the end targets specified by the user.
-                    For example, if an image is being built, the build system
-                    first looks for the packages needed for that image and the
-                    tools needed to construct an image.
-                    If those are available, the compiler is not needed.
-                    Thus, the compiler is not even downloaded.
-                    If something was found to be unavailable, or the
-                    download or setscene task fails, the build system then
-                    tries to install dependencies, such as the compiler, from
-                    the cache.
-                </para>
-
-                <para>
-                    The availability of objects in the sstate cache is
-                    handled by the function specified by the
-                    <ulink url='&YOCTO_DOCS_BB_URL;#var-BB_HASHCHECK_FUNCTION'><filename>BB_HASHCHECK_FUNCTION</filename></ulink>
-                    variable and returns a list of available objects.
-                    The function specified by the
-                    <ulink url='&YOCTO_DOCS_BB_URL;#var-BB_SETSCENE_DEPVALID'><filename>BB_SETSCENE_DEPVALID</filename></ulink>
-                    variable is the function that determines whether a given
-                    dependency needs to be followed, and whether for any given
-                    relationship the function needs to be passed.
-                    The function returns a True or False value.
-                </para>
-            </section>
-        </section>
-
-        <section id='images-dev-environment'>
-            <title>Images</title>
-
-            <para>
-                The images produced by the build system are compressed forms
-                of the root filesystem and are ready to boot on a target
-                device.
-                You can see from the
-                <link linkend='general-workflow-figure'>general workflow figure</link>
-                that BitBake output, in part, consists of images.
-                This section takes a closer look at this output:
-                <imagedata fileref="figures/images.png" align="center" width="5.5in" depth="5.5in" />
-            </para>
-
-            <note>
-                For a list of example images that the Yocto Project provides,
-                see the
-                "<ulink url='&YOCTO_DOCS_REF_URL;#ref-images'>Images</ulink>"
-                chapter in the Yocto Project Reference Manual.
-            </note>
-
-            <para>
-                The build process writes images out to the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                inside the
-                <filename>tmp/deploy/images/<replaceable>machine</replaceable>/</filename>
-                folder as shown in the figure.
-                This folder contains any files expected to be loaded on the
-                target device.
-                The
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPLOY_DIR'><filename>DEPLOY_DIR</filename></ulink>
-                variable points to the <filename>deploy</filename> directory,
-                while the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPLOY_DIR_IMAGE'><filename>DEPLOY_DIR_IMAGE</filename></ulink>
-                variable points to the appropriate directory containing images
-                for the current configuration.
-                <itemizedlist>
-                    <listitem><para>
-                        <replaceable>kernel-image</replaceable>:
-                        A kernel binary file.
-                        The
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-KERNEL_IMAGETYPE'><filename>KERNEL_IMAGETYPE</filename></ulink>
-                        variable determines the naming scheme for the
-                        kernel image file.
-                        Depending on this variable, the file could begin with
-                        a variety of naming strings.
-                        The
-                        <filename>deploy/images/</filename><replaceable>machine</replaceable>
-                        directory can contain multiple image files for the
-                        machine.
-                        </para></listitem>
-                    <listitem><para>
-                        <replaceable>root-filesystem-image</replaceable>:
-                        Root filesystems for the target device (e.g.
-                        <filename>*.ext3</filename> or
-                        <filename>*.bz2</filename> files).
-                        The
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></ulink>
-                        variable determines the root filesystem image type.
-                        The
-                        <filename>deploy/images/</filename><replaceable>machine</replaceable>
-                        directory can contain multiple root filesystems for the
-                        machine.
-                        </para></listitem>
-                    <listitem><para>
-                        <replaceable>kernel-modules</replaceable>:
-                        Tarballs that contain all the modules built for the
-                        kernel.
-                        Kernel module tarballs exist for legacy purposes and
-                        can be suppressed by setting the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-MODULE_TARBALL_DEPLOY'><filename>MODULE_TARBALL_DEPLOY</filename></ulink>
-                        variable to "0".
-                        The
-                        <filename>deploy/images/</filename><replaceable>machine</replaceable>
-                        directory can contain multiple kernel module tarballs
-                        for the machine.
-                        </para></listitem>
-                    <listitem><para>
-                        <replaceable>bootloaders</replaceable>:
-                        If applicable to the target machine, bootloaders
-                        supporting the image.
-                        The <filename>deploy/images/</filename><replaceable>machine</replaceable>
-                        directory can contain multiple bootloaders for the
-                        machine.
-                        </para></listitem>
-                    <listitem><para>
-                        <replaceable>symlinks</replaceable>:
-                        The
-                        <filename>deploy/images/</filename><replaceable>machine</replaceable>
-                        folder contains a symbolic link that points to the
-                        most recently built file for each machine.
-                        These links might be useful for external scripts that
-                        need to obtain the latest version of each file.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='sdk-dev-environment'>
-            <title>Application Development SDK</title>
-
-            <para>
-                In the
-                <link linkend='general-workflow-figure'>general workflow figure</link>,
-                the output labeled "Application Development SDK" represents an
-                SDK.
-                The SDK generation process differs depending on whether you
-                build an extensible SDK (e.g.
-                <filename>bitbake -c populate_sdk_ext</filename> <replaceable>imagename</replaceable>)
-                or a standard SDK (e.g.
-                <filename>bitbake -c populate_sdk</filename> <replaceable>imagename</replaceable>).
-                This section takes a closer look at this output:
-                <imagedata fileref="figures/sdk.png" align="center" width="9in" depth="7.25in" />
-            </para>
-
-            <para>
-                The specific form of this output is a set of files that
-                includes a self-extracting SDK installer
-                (<filename>*.sh</filename>), host and target manifest files,
-                and files used for SDK testing.
-                When the SDK installer file is run, it installs the SDK.
-                The SDK consists of a cross-development toolchain, a set of
-                libraries and headers, and an SDK environment setup script.
-                Running this installer essentially sets up your
-                cross-development environment.
-                You can think of the cross-toolchain as the "host"
-                part because it runs on the SDK machine.
-                You can think of the libraries and headers as the "target"
-                part because they are built for the target hardware.
-                The environment setup script is added so that you can
-                initialize the environment before using the tools.
-            </para>
-
-            <note><title>Notes</title>
-                <itemizedlist>
-                    <listitem><para>
-                        The Yocto Project supports several methods by which
-                        you can set up this cross-development environment.
-                        These methods include downloading pre-built SDK
-                        installers or building and installing your own SDK
-                        installer.
-                        </para></listitem>
-                    <listitem><para>
-                        For background information on cross-development
-                        toolchains in the Yocto Project development
-                        environment, see the
-                        "<link linkend='cross-development-toolchain-generation'>Cross-Development Toolchain Generation</link>"
-                        section.
-                        </para></listitem>
-                    <listitem><para>
-                        For information on setting up a cross-development
-                        environment, see the
-                        <ulink url='&YOCTO_DOCS_SDK_URL;'>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</ulink>
-                        manual.
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-
-            <para>
-                All the output files for an SDK are written to the
-                <filename>deploy/sdk</filename> folder inside the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                as shown in the previous figure.
-                Depending on the type of SDK, several variables exist that help
-                configure these files.
-                The following list shows the variables associated with an
-                extensible SDK:
-                <itemizedlist>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPLOY_DIR'><filename>DEPLOY_DIR</filename></ulink>:
-                        Points to the <filename>deploy</filename> directory.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_EXT_TYPE'><filename>SDK_EXT_TYPE</filename></ulink>:
-                        Controls whether or not shared state artifacts are
-                        copied into the extensible SDK.
-                        By default, all required shared state artifacts are
-                        copied into the SDK.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_INCLUDE_PKGDATA'><filename>SDK_INCLUDE_PKGDATA</filename></ulink>:
-                        Specifies whether or not packagedata is included in the
-                        extensible SDK for all recipes in the "world" target.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_INCLUDE_TOOLCHAIN'><filename>SDK_INCLUDE_TOOLCHAIN</filename></ulink>:
-                        Specifies whether or not the toolchain is included
-                        when building the extensible SDK.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_LOCAL_CONF_WHITELIST'><filename>SDK_LOCAL_CONF_WHITELIST</filename></ulink>:
-                        A list of variables allowed through from the build
-                        system configuration into the extensible SDK
-                        configuration.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_LOCAL_CONF_BLACKLIST'><filename>SDK_LOCAL_CONF_BLACKLIST</filename></ulink>:
-                        A list of variables not allowed through from the build
-                        system configuration into the extensible SDK
-                        configuration.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_INHERIT_BLACKLIST'><filename>SDK_INHERIT_BLACKLIST</filename></ulink>:
-                        A list of classes to remove from the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-INHERIT'><filename>INHERIT</filename></ulink>
-                        value globally within the extensible SDK configuration.
-                        </para></listitem>
-                </itemizedlist>
-                This next list, shows the variables associated with a standard
-                SDK:
-                <itemizedlist>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPLOY_DIR'><filename>DEPLOY_DIR</filename></ulink>:
-                        Points to the <filename>deploy</filename> directory.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDKMACHINE'><filename>SDKMACHINE</filename></ulink>:
-                        Specifies the architecture of the machine on which the
-                        cross-development tools are run to create packages for
-                        the target hardware.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDKIMAGE_FEATURES'><filename>SDKIMAGE_FEATURES</filename></ulink>:
-                        Lists the features to include in the "target" part
-                        of the SDK.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-TOOLCHAIN_HOST_TASK'><filename>TOOLCHAIN_HOST_TASK</filename></ulink>:
-                        Lists packages that make up the host part of the SDK
-                        (i.e. the part that runs on the
-                        <filename>SDKMACHINE</filename>).
-                        When you use
-                        <filename>bitbake -c populate_sdk <replaceable>imagename</replaceable></filename>
-                        to create the SDK, a set of default packages apply.
-                        This variable allows you to add more packages.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-TOOLCHAIN_TARGET_TASK'><filename>TOOLCHAIN_TARGET_TASK</filename></ulink>:
-                        Lists packages that make up the target part of the SDK
-                        (i.e. the part built for the target hardware).
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDKPATH'><filename>SDKPATH</filename></ulink>:
-                        Defines the default SDK installation path offered by
-                        the installation script.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_HOST_MANIFEST'><filename>SDK_HOST_MANIFEST</filename></ulink>:
-                        Lists all the installed packages that make up the host
-                        part of the SDK.
-                        This variable also plays a minor role for extensible
-                        SDK development as well.
-                        However, it is mainly used for the standard SDK.
-                        </para></listitem>
-                    <listitem><para>
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_TARGET_MANIFEST'><filename>SDK_TARGET_MANIFEST</filename></ulink>:
-                        Lists all the installed packages that make up the
-                        target part of the SDK.
-                        This variable also plays a minor role for extensible
-                        SDK development as well.
-                        However, it is mainly used for the standard SDK.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-    </section>
-
-    <section id="cross-development-toolchain-generation">
-        <title>Cross-Development Toolchain Generation</title>
-
-        <para>
-            The Yocto Project does most of the work for you when it comes to
-            creating
-            <ulink url='&YOCTO_DOCS_REF_URL;#cross-development-toolchain'>cross-development toolchains</ulink>.
-            This section provides some technical background on how
-            cross-development toolchains are created and used.
-            For more information on toolchains, you can also see the
-            <ulink url='&YOCTO_DOCS_SDK_URL;'>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</ulink>
-            manual.
-        </para>
-
-        <para>
-            In the Yocto Project development environment, cross-development
-            toolchains are used to build images and applications that run
-            on the target hardware.
-            With just a few commands, the OpenEmbedded build system creates
-            these necessary toolchains for you.
-        </para>
-
-        <para>
-            The following figure shows a high-level build environment regarding
-            toolchain construction and use.
-        </para>
-
-        <para>
-            <imagedata fileref="figures/cross-development-toolchains.png" width="8in" depth="6in" align="center" />
-        </para>
-
-        <para>
-            Most of the work occurs on the Build Host.
-            This is the machine used to build images and generally work within
-            the the Yocto Project environment.
-            When you run
-            <ulink url='&YOCTO_DOCS_REF_URL;#bitbake-term'>BitBake</ulink>
-            to create an image, the OpenEmbedded build system
-            uses the host <filename>gcc</filename> compiler to bootstrap a
-            cross-compiler named <filename>gcc-cross</filename>.
-            The <filename>gcc-cross</filename> compiler is what BitBake uses to
-            compile source files when creating the target image.
-            You can think of <filename>gcc-cross</filename> simply as an
-            automatically generated cross-compiler that is used internally
-            within BitBake only.
-            <note>
-                The extensible SDK does not use
-                <filename>gcc-cross-canadian</filename> since this SDK
-                ships a copy of the OpenEmbedded build system and the sysroot
-                within it contains <filename>gcc-cross</filename>.
-            </note>
-        </para>
-
-        <para>
-            The chain of events that occurs when <filename>gcc-cross</filename> is
-            bootstrapped is as follows:
-            <literallayout class='monospaced'>
-     gcc -> binutils-cross -> gcc-cross-initial -> linux-libc-headers -> glibc-initial -> glibc -> gcc-cross -> gcc-runtime
-            </literallayout>
-            <itemizedlist>
-                <listitem><para>
-                    <filename>gcc</filename>:
-                    The build host's GNU Compiler Collection (GCC).
-                    </para></listitem>
-                <listitem><para>
-                    <filename>binutils-cross</filename>:
-                    The bare minimum binary utilities needed in order to run
-                    the <filename>gcc-cross-initial</filename> phase of the
-                    bootstrap operation.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gcc-cross-initial</filename>:
-                    An early stage of the bootstrap process for creating
-                    the cross-compiler.
-                    This stage builds enough of the <filename>gcc-cross</filename>,
-                    the C library, and other pieces needed to finish building the
-                    final cross-compiler in later stages.
-                    This tool is a "native" package (i.e. it is designed to run on
-                    the build host).
-                    </para></listitem>
-                <listitem><para>
-                    <filename>linux-libc-headers</filename>:
-                    Headers needed for the cross-compiler.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>glibc-initial</filename>:
-                    An initial version of the Embedded GNU C Library
-                    (GLIBC) needed to bootstrap <filename>glibc</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>glibc</filename>:
-                    The GNU C Library.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gcc-cross</filename>:
-                    The final stage of the bootstrap process for the
-                    cross-compiler.
-                    This stage results in the actual cross-compiler that
-                    BitBake uses when it builds an image for a targeted
-                    device.
-                    <note>
-                        If you are replacing this cross compiler toolchain
-                        with a custom version, you must replace
-                        <filename>gcc-cross</filename>.
-                    </note>
-                    This tool is also a "native" package (i.e. it is
-                    designed to run on the build host).
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gcc-runtime</filename>:
-                    Runtime libraries resulting from the toolchain bootstrapping
-                    process.
-                    This tool produces a binary that consists of the
-                    runtime libraries need for the targeted device.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            You can use the OpenEmbedded build system to build an installer for
-            the relocatable SDK used to develop applications.
-            When you run the installer, it installs the toolchain, which
-            contains the development tools (e.g.,
-            <filename>gcc-cross-canadian</filename>,
-            <filename>binutils-cross-canadian</filename>, and other
-            <filename>nativesdk-*</filename> tools),
-            which are tools native to the SDK (i.e. native to
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_ARCH'><filename>SDK_ARCH</filename></ulink>),
-            you need to cross-compile and test your software.
-            The figure shows the commands you use to easily build out this
-            toolchain.
-            This cross-development toolchain is built to execute on the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-SDKMACHINE'><filename>SDKMACHINE</filename></ulink>,
-            which might or might not be the same
-            machine as the Build Host.
-            <note>
-                If your target architecture is supported by the Yocto Project,
-                you can take advantage of pre-built images that ship with the
-                Yocto Project and already contain cross-development toolchain
-                installers.
-            </note>
-        </para>
-
-        <para>
-            Here is the bootstrap process for the relocatable toolchain:
-            <literallayout class='monospaced'>
-     gcc -> binutils-crosssdk -> gcc-crosssdk-initial -> linux-libc-headers ->
-        glibc-initial -> nativesdk-glibc -> gcc-crosssdk -> gcc-cross-canadian
-            </literallayout>
-            <itemizedlist>
-                <listitem><para>
-                    <filename>gcc</filename>:
-                    The build host's GNU Compiler Collection (GCC).
-                    </para></listitem>
-                <listitem><para>
-                    <filename>binutils-crosssdk</filename>:
-                    The bare minimum binary utilities needed in order to run
-                    the <filename>gcc-crosssdk-initial</filename> phase of the
-                    bootstrap operation.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gcc-crosssdk-initial</filename>:
-                    An early stage of the bootstrap process for creating
-                    the cross-compiler.
-                    This stage builds enough of the
-                    <filename>gcc-crosssdk</filename> and supporting pieces so that
-                    the final stage of the bootstrap process can produce the
-                    finished cross-compiler.
-                    This tool is a "native" binary that runs on the build host.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>linux-libc-headers</filename>:
-                    Headers needed for the cross-compiler.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>glibc-initial</filename>:
-                    An initial version of the Embedded GLIBC needed to bootstrap
-                    <filename>nativesdk-glibc</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>nativesdk-glibc</filename>:
-                    The Embedded GLIBC needed to bootstrap the
-                    <filename>gcc-crosssdk</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gcc-crosssdk</filename>:
-                    The final stage of the bootstrap process for the
-                    relocatable cross-compiler.
-                    The <filename>gcc-crosssdk</filename> is a transitory
-                    compiler and never leaves the build host.
-                    Its purpose is to help in the bootstrap process to create
-                    the eventual <filename>gcc-cross-canadian</filename>
-                    compiler, which is relocatable.
-                    This tool is also a "native" package (i.e. it is
-                    designed to run on the build host).
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gcc-cross-canadian</filename>:
-                    The final relocatable cross-compiler.
-                    When run on the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-SDKMACHINE'><filename>SDKMACHINE</filename></ulink>,
-                    this tool
-                    produces executable code that runs on the target device.
-                    Only one cross-canadian compiler is produced per architecture
-                    since they can be targeted at different processor optimizations
-                    using configurations passed to the compiler through the
-                    compile commands.
-                    This circumvents the need for multiple compilers and thus
-                    reduces the size of the toolchains.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <note>
-            For information on advantages gained when building a
-            cross-development toolchain installer, see the
-            "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-building-an-sdk-installer'>Building an SDK Installer</ulink>"
-            appendix in the Yocto Project Application Development and the
-            Extensible Software Development Kit (eSDK) manual.
-        </note>
-    </section>
-
-    <section id="shared-state-cache">
-        <title>Shared State Cache</title>
-
-        <para>
-            By design, the OpenEmbedded build system builds everything from
-            scratch unless
-            <ulink url='&YOCTO_DOCS_REF_URL;#bitbake-term'>BitBake</ulink>
-            can determine that parts do not need to be rebuilt.
-            Fundamentally, building from scratch is attractive as it means all
-            parts are built fresh and no possibility of stale data exists that
-            can cause problems.
-            When developers hit problems, they typically default back to
-            building from scratch so they have a know state from the
-            start.
-        </para>
-
-        <para>
-            Building an image from scratch is both an advantage and a
-            disadvantage to the process.
-            As mentioned in the previous paragraph, building from scratch
-            ensures that everything is current and starts from a known state.
-            However, building from scratch also takes much longer as it
-            generally means rebuilding things that do not necessarily need
-            to be rebuilt.
-        </para>
-
-        <para>
-            The Yocto Project implements shared state code that supports
-            incremental builds.
-            The implementation of the shared state code answers the following
-            questions that were fundamental roadblocks within the OpenEmbedded
-            incremental build support system:
-            <itemizedlist>
-                <listitem><para>
-                    What pieces of the system have changed and what pieces have
-                    not changed?
-                    </para></listitem>
-                <listitem><para>
-                    How are changed pieces of software removed and replaced?
-                    </para></listitem>
-                <listitem><para>
-                    How are pre-built components that do not need to be rebuilt
-                    from scratch used when they are available?
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            For the first question, the build system detects changes in the
-            "inputs" to a given task by creating a checksum (or signature) of
-            the task's inputs.
-            If the checksum changes, the system assumes the inputs have changed
-            and the task needs to be rerun.
-            For the second question, the shared state (sstate) code tracks
-            which tasks add which output to the build process.
-            This means the output from a given task can be removed, upgraded
-            or otherwise manipulated.
-            The third question is partly addressed by the solution for the
-            second question assuming the build system can fetch the sstate
-            objects from remote locations and install them if they are deemed
-            to be valid.
-            <note><title>Notes</title>
-                <itemizedlist>
-                    <listitem><para>
-                        The build system does not maintain
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PR'><filename>PR</filename></ulink>
-                        information as part of the shared state packages.
-                        Consequently, considerations exist that affect
-                        maintaining shared state feeds.
-                        For information on how the build system works with
-                        packages and can track incrementing
-                        <filename>PR</filename> information, see the
-                       "<ulink url='&YOCTO_DOCS_DEV_URL;#automatically-incrementing-a-binary-package-revision-number'>Automatically Incrementing a Binary Package Revision Number</ulink>"
-                        section in the Yocto Project Development Tasks Manual.
-                        </para></listitem>
-                    <listitem><para>
-                        The code in the build system that supports incremental
-                        builds is not simple code.
-                        For techniques that help you work around issues related
-                        to shared state code, see the
-                        "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-viewing-metadata-used-to-create-the-input-signature-of-a-shared-state-task'>Viewing Metadata Used to Create the Input Signature of a Shared State Task</ulink>"
-                        and
-                        "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-invalidating-shared-state-to-force-a-task-to-run'>Invalidating Shared State to Force a Task to Run</ulink>"
-                        sections both in the Yocto Project Development Tasks
-                        Manual.
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-        </para>
-
-        <para>
-            The rest of this section goes into detail about the overall
-            incremental build architecture, the checksums (signatures), and
-            shared state.
-        </para>
-
-        <section id='concepts-overall-architecture'>
-            <title>Overall Architecture</title>
-
-            <para>
-                When determining what parts of the system need to be built,
-                BitBake works on a per-task basis rather than a per-recipe
-                basis.
-                You might wonder why using a per-task basis is preferred over
-                a per-recipe basis.
-                To help explain, consider having the IPK packaging backend
-                enabled and then switching to DEB.
-                In this case, the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>
-                and
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package'><filename>do_package</filename></ulink>
-                task outputs are still valid.
-                However, with a per-recipe approach, the build would not
-                include the <filename>.deb</filename> files.
-                Consequently, you would have to invalidate the whole build and
-                rerun it.
-                Rerunning everything is not the best solution.
-                Also, in this case, the core must be "taught" much about
-                specific tasks.
-                This methodology does not scale well and does not allow users
-                to easily add new tasks in layers or as external recipes
-                without touching the packaged-staging core.
-            </para>
-        </section>
-
-        <section id='overview-checksums'>
-            <title>Checksums (Signatures)</title>
-
-            <para>
-                The shared state code uses a checksum, which is a unique
-                signature of a task's inputs, to determine if a task needs to
-                be run again.
-                Because it is a change in a task's inputs that triggers a
-                rerun, the process needs to detect all the inputs to a given
-                task.
-                For shell tasks, this turns out to be fairly easy because
-                the build process generates a "run" shell script for each task
-                and it is possible to create a checksum that gives you a good
-                idea of when the task's data changes.
-            </para>
-
-            <para>
-                To complicate the problem, there are things that should not be
-                included in the checksum.
-                First, there is the actual specific build path of a given
-                task - the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink>.
-                It does not matter if the work directory changes because it
-                should not affect the output for target packages.
-                Also, the build process has the objective of making native
-                or cross packages relocatable.
-                <note>
-                    Both native and cross packages run on the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#hardware-build-system-term'>build host</ulink>.
-                    However, cross packages generate output for the target
-                    architecture.
-                </note>
-                The checksum therefore needs to exclude
-                <filename>WORKDIR</filename>.
-                The simplistic approach for excluding the work directory is to
-                set <filename>WORKDIR</filename> to some fixed value and
-                create the checksum for the "run" script.
-            </para>
-
-            <para>
-                Another problem results from the "run" scripts containing
-                functions that might or might not get called.
-                The incremental build solution contains code that figures out
-                dependencies between shell functions.
-                This code is used to prune the "run" scripts down to the
-                minimum set, thereby alleviating this problem and making the
-                "run" scripts much more readable as a bonus.
-            </para>
-
-            <para>
-                So far, solutions for shell scripts exist.
-                What about Python tasks?
-                The same approach applies even though these tasks are more
-                difficult.
-                The process needs to figure out what variables a Python
-                function accesses and what functions it calls.
-                Again, the incremental build solution contains code that first
-                figures out the variable and function dependencies, and then
-                creates a checksum for the data used as the input to the task.
-            </para>
-
-            <para>
-                Like the <filename>WORKDIR</filename> case, situations exist
-                where dependencies should be ignored.
-                For these situations, you can instruct the build process to
-                ignore a dependency by using a line like the following:
-                <literallayout class='monospaced'>
-     PACKAGE_ARCHS[vardepsexclude] = "MACHINE"
-                </literallayout>
-                This example ensures that the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_ARCHS'><filename>PACKAGE_ARCHS</filename></ulink>
-                variable does not depend on the value of
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>,
-                even if it does reference it.
-            </para>
-
-            <para>
-                Equally, there are cases where you need to add dependencies
-                BitBake is not able to find.
-                You can accomplish this by using a line like the following:
-                <literallayout class='monospaced'>
-      PACKAGE_ARCHS[vardeps] = "MACHINE"
-                </literallayout>
-                This example explicitly adds the <filename>MACHINE</filename>
-                variable as a dependency for
-                <filename>PACKAGE_ARCHS</filename>.
-            </para>
-
-            <para>
-                As an example, consider a case with in-line Python where
-                BitBake is not able to figure out dependencies.
-                When running in debug mode (i.e. using
-                <filename>-DDD</filename>), BitBake produces output when it
-                discovers something for which it cannot figure out dependencies.
-                The Yocto Project team has currently not managed to cover
-                those dependencies in detail and is aware of the need to fix
-                this situation.
-            </para>
-
-            <para>
-                Thus far, this section has limited discussion to the direct
-                inputs into a task.
-                Information based on direct inputs is referred to as the
-                "basehash" in the code.
-                However, the question of a task's indirect inputs still
-                exits - items already built and present in the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                The checksum (or signature) for a particular task needs to add
-                the hashes of all the tasks on which the particular task
-                depends.
-                Choosing which dependencies to add is a policy decision.
-                However, the effect is to generate a master checksum that
-                combines the basehash and the hashes of the task's
-                dependencies.
-            </para>
-
-            <para>
-                At the code level, a variety of ways exist by which both the
-                basehash and the dependent task hashes can be influenced.
-                Within the BitBake configuration file, you can give BitBake
-                some extra information to help it construct the basehash.
-                The following statement effectively results in a list of
-                global variable dependency excludes (i.e. variables never
-                included in any checksum):
-                <literallayout class='monospaced'>
-     BB_HASHBASE_WHITELIST ?= "TMPDIR FILE PATH PWD BB_TASKHASH BBPATH DL_DIR \
-         SSTATE_DIR THISDIR FILESEXTRAPATHS FILE_DIRNAME HOME LOGNAME SHELL TERM \
-         USER FILESPATH STAGING_DIR_HOST STAGING_DIR_TARGET COREBASE PRSERV_HOST \
-         PRSERV_DUMPDIR PRSERV_DUMPFILE PRSERV_LOCKDOWN PARALLEL_MAKE \
-         CCACHE_DIR EXTERNAL_TOOLCHAIN CCACHE CCACHE_DISABLE LICENSE_PATH SDKPKGSUFFIX"
-                </literallayout>
-                The previous example excludes
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink>
-                since that variable is actually constructed as a path within
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-TMPDIR'><filename>TMPDIR</filename></ulink>,
-                which is on the whitelist.
-            </para>
-
-            <para>
-                The rules for deciding which hashes of dependent tasks to
-                include through dependency chains are more complex and are
-                generally accomplished with a Python function.
-                The code in <filename>meta/lib/oe/sstatesig.py</filename> shows
-                two examples of this and also illustrates how you can insert
-                your own policy into the system if so desired.
-                This file defines the two basic signature generators
-                <ulink url='&YOCTO_DOCS_REF_URL;#oe-core'>OE-Core</ulink>
-                uses:  "OEBasic" and "OEBasicHash".
-                By default, a dummy "noop" signature handler is enabled
-                in BitBake.
-                This means that behavior is unchanged from previous versions.
-                OE-Core uses the "OEBasicHash" signature handler by default
-                through this setting in the <filename>bitbake.conf</filename>
-                file:
-                <literallayout class='monospaced'>
-     BB_SIGNATURE_HANDLER ?= "OEBasicHash"
-                </literallayout>
-                The "OEBasicHash" <filename>BB_SIGNATURE_HANDLER</filename>
-                is the same as the "OEBasic" version but adds the task hash to
-                the
-                <link linkend='stamp-files-and-the-rerunning-of-tasks'>stamp files</link>.
-                This results in any metadata change that changes the task hash,
-                automatically causing the task to be run again.
-                This removes the need to bump
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PR'><filename>PR</filename></ulink>
-                values, and changes to metadata automatically ripple across
-                the build.
-            </para>
-
-            <para>
-                It is also worth noting that the end result of these
-                signature generators is to make some dependency and hash
-                information available to the build.
-                This information includes:
-                <itemizedlist>
-                    <listitem><para>
-                        <filename>BB_BASEHASH_task-</filename><replaceable>taskname</replaceable>:
-                        The base hashes for each task in the recipe.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>BB_BASEHASH_</filename><replaceable>filename</replaceable><filename>:</filename><replaceable>taskname</replaceable>:
-                        The base hashes for each dependent task.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>BBHASHDEPS_</filename><replaceable>filename</replaceable><filename>:</filename><replaceable>taskname</replaceable>:
-                        The task dependencies for each task.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>BB_TASKHASH</filename>:
-                        The hash of the currently running task.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='shared-state'>
-            <title>Shared State</title>
-
-            <para>
-                Checksums and dependencies, as discussed in the previous
-                section, solve half the problem of supporting a shared state.
-                The other half of the problem is being able to use checksum
-                information during the build and being able to reuse or rebuild
-                specific components.
-            </para>
-
-            <para>
-                The
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-sstate'><filename>sstate</filename></ulink>
-                class is a relatively generic implementation of how to
-                "capture" a snapshot of a given task.
-                The idea is that the build process does not care about the
-                source of a task's output.
-                Output could be freshly built or it could be downloaded and
-                unpacked from somewhere.
-                In other words, the build process does not need to worry about
-                its origin.
-            </para>
-
-            <para>
-                Two types of output exist.
-                One type is just about creating a directory in
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink>.
-                A good example is the output of either
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>
-                or
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package'><filename>do_package</filename></ulink>.
-                The other type of output occurs when a set of data is merged
-                into a shared directory tree such as the sysroot.
-            </para>
-
-            <para>
-                The Yocto Project team has tried to keep the details of the
-                implementation hidden in <filename>sstate</filename> class.
-                From a user's perspective, adding shared state wrapping to a
-                task is as simple as this
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-deploy'><filename>do_deploy</filename></ulink>
-                example taken from the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-deploy'><filename>deploy</filename></ulink>
-                class:
-                <literallayout class='monospaced'>
-     DEPLOYDIR = "${WORKDIR}/deploy-${PN}"
-     SSTATETASKS += "do_deploy"
-     do_deploy[sstate-inputdirs] = "${DEPLOYDIR}"
-     do_deploy[sstate-outputdirs] = "${DEPLOY_DIR_IMAGE}"
-
-     python do_deploy_setscene () {
-         sstate_setscene(d)
-     }
-     addtask do_deploy_setscene
-     do_deploy[dirs] = "${DEPLOYDIR} ${B}"
-     do_deploy[stamp-extra-info] = "${MACHINE_ARCH}"
-                </literallayout>
-                The following list explains the previous example:
-                <itemizedlist>
-                    <listitem><para>
-                        Adding "do_deploy" to <filename>SSTATETASKS</filename>
-                        adds some required sstate-related processing, which is
-                        implemented in the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-sstate'><filename>sstate</filename></ulink>
-                        class, to before and after the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-deploy'><filename>do_deploy</filename></ulink>
-                        task.
-                        </para></listitem>
-                    <listitem><para>
-                        The
-                        <filename>do_deploy[sstate-inputdirs] = "${DEPLOYDIR}"</filename>
-                        declares that <filename>do_deploy</filename> places its
-                        output in <filename>${DEPLOYDIR}</filename> when run
-                        normally (i.e. when not using the sstate cache).
-                        This output becomes the input to the shared state cache.
-                        </para></listitem>
-                    <listitem><para>
-                        The
-                        <filename>do_deploy[sstate-outputdirs] = "${DEPLOY_DIR_IMAGE}"</filename>
-                        line causes the contents of the shared state cache to be
-                        copied to <filename>${DEPLOY_DIR_IMAGE}</filename>.
-                        <note>
-                            If <filename>do_deploy</filename> is not already in
-                            the shared state cache or if its input checksum
-                            (signature) has changed from when the output was
-                            cached, the task runs to populate the shared
-                            state cache, after which the contents of the shared
-                            state cache is copied to
-                            <filename>${DEPLOY_DIR_IMAGE}</filename>.
-                            If <filename>do_deploy</filename> is in the shared
-                            state cache and its signature indicates that the
-                            cached output is still valid (i.e. if no
-                            relevant task inputs have changed), then the
-                            contents of the shared state cache copies
-                            directly to
-                            <filename>${DEPLOY_DIR_IMAGE}</filename> by the
-                            <filename>do_deploy_setscene</filename> task
-                            instead, skipping the
-                            <filename>do_deploy</filename> task.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        The following task definition is glue logic needed to
-                        make the previous settings effective:
-                        <literallayout class='monospaced'>
-     python do_deploy_setscene () {
-         sstate_setscene(d)
-     }
-     addtask do_deploy_setscene
-                        </literallayout>
-                        <filename>sstate_setscene()</filename> takes the flags
-                        above as input and accelerates the
-                        <filename>do_deploy</filename> task through the
-                        shared state cache if possible.
-                        If the task was accelerated,
-                        <filename>sstate_setscene()</filename> returns True.
-                        Otherwise, it returns False, and the normal
-                        <filename>do_deploy</filename> task runs.
-                        For more information, see the
-                        "<ulink url='&YOCTO_DOCS_BB_URL;#setscene'>setscene</ulink>"
-                        section in the BitBake User Manual.
-                        </para></listitem>
-                    <listitem><para>
-                        The <filename>do_deploy[dirs] = "${DEPLOYDIR} ${B}"</filename>
-                        line creates <filename>${DEPLOYDIR}</filename> and
-                        <filename>${B}</filename> before the
-                        <filename>do_deploy</filename> task runs, and also sets
-                        the current working directory of
-                        <filename>do_deploy</filename> to
-                        <filename>${B}</filename>.
-                        For more information, see the
-                        "<ulink url='&YOCTO_DOCS_BB_URL;#variable-flags'>Variable Flags</ulink>"
-                        section in the BitBake User Manual.
-                        <note>
-                            In cases where
-                            <filename>sstate-inputdirs</filename> and
-                            <filename>sstate-outputdirs</filename> would be the
-                            same, you can use
-                            <filename>sstate-plaindirs</filename>.
-                            For example, to preserve the
-                            <filename>${PKGD}</filename> and
-                            <filename>${PKGDEST}</filename> output from the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package'><filename>do_package</filename></ulink>
-                            task, use the following:
-                            <literallayout class='monospaced'>
-     do_package[sstate-plaindirs] = "${PKGD} ${PKGDEST}"
-                            </literallayout>
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        The <filename>do_deploy[stamp-extra-info] = "${MACHINE_ARCH}"</filename>
-                        line appends extra metadata to the
-                        <link linkend='stamp-files-and-the-rerunning-of-tasks'>stamp file</link>.
-                        In this case, the metadata makes the task specific
-                        to a machine's architecture.
-                        See
-                        "<ulink url='&YOCTO_DOCS_BB_URL;#ref-bitbake-tasklist'>The Task List</ulink>"
-                        section in the BitBake User Manual for more
-                        information on the <filename>stamp-extra-info</filename>
-                        flag.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>sstate-inputdirs</filename> and
-                        <filename>sstate-outputdirs</filename> can also be used
-                        with multiple directories.
-                        For example, the following declares
-                        <filename>PKGDESTWORK</filename> and
-                        <filename>SHLIBWORK</filename> as shared state
-                        input directories, which populates the shared state
-                        cache, and <filename>PKGDATA_DIR</filename> and
-                        <filename>SHLIBSDIR</filename> as the corresponding
-                        shared state output directories:
-                        <literallayout class='monospaced'>
-     do_package[sstate-inputdirs] = "${PKGDESTWORK} ${SHLIBSWORKDIR}"
-     do_package[sstate-outputdirs] = "${PKGDATA_DIR} ${SHLIBSDIR}"
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        These methods also include the ability to take a
-                        lockfile when manipulating shared state directory
-                        structures, for cases where file additions or removals
-                        are sensitive:
-                        <literallayout class='monospaced'>
-     do_package[sstate-lockfile] = "${PACKAGELOCK}"
-                        </literallayout>
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                Behind the scenes, the shared state code works by looking in
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SSTATE_DIR'><filename>SSTATE_DIR</filename></ulink>
-                and
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SSTATE_MIRRORS'><filename>SSTATE_MIRRORS</filename></ulink>
-                for shared state files.
-                Here is an example:
-                <literallayout class='monospaced'>
-     SSTATE_MIRRORS ?= "\
-     file://.* http://someserver.tld/share/sstate/PATH;downloadfilename=PATH \n \
-     file://.* file:///some/local/dir/sstate/PATH"
-                </literallayout>
-                <note>
-                    The shared state directory
-                    (<filename>SSTATE_DIR</filename>) is organized into
-                    two-character subdirectories, where the subdirectory
-                    names are based on the first two characters of the hash.
-                    If the shared state directory structure for a mirror has the
-                    same structure as <filename>SSTATE_DIR</filename>, you must
-                    specify "PATH" as part of the URI to enable the build system
-                    to map to the appropriate subdirectory.
-                </note>
-            </para>
-
-            <para>
-                The shared state package validity can be detected just by
-                looking at the filename since the filename contains the task
-                checksum (or signature) as described earlier in this section.
-                If a valid shared state package is found, the build process
-                downloads it and uses it to accelerate the task.
-            </para>
-
-            <para>
-                The build processes use the <filename>*_setscene</filename>
-                tasks for the task acceleration phase.
-                BitBake goes through this phase before the main execution
-                code and tries to accelerate any tasks for which it can find
-                shared state packages.
-                If a shared state package for a task is available, the
-                shared state package is used.
-                This means the task and any tasks on which it is dependent
-                are not executed.
-            </para>
-
-            <para>
-                As a real world example, the aim is when building an IPK-based
-                image, only the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package_write_ipk'><filename>do_package_write_ipk</filename></ulink>
-                tasks would have their shared state packages fetched and
-                extracted.
-                Since the sysroot is not used, it would never get extracted.
-                This is another reason why a task-based approach is preferred
-                over a recipe-based approach, which would have to install the
-                output from every task.
-            </para>
-        </section>
-    </section>
-
-    <section id='automatically-added-runtime-dependencies'>
-        <title>Automatically Added Runtime Dependencies</title>
-
-        <para>
-            The OpenEmbedded build system automatically adds common types of
-            runtime dependencies between packages, which means that you do not
-            need to explicitly declare the packages using
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-RDEPENDS'><filename>RDEPENDS</filename></ulink>.
-            Three automatic mechanisms exist (<filename>shlibdeps</filename>,
-            <filename>pcdeps</filename>, and <filename>depchains</filename>)
-            that handle shared libraries, package configuration (pkg-config)
-            modules, and <filename>-dev</filename> and
-            <filename>-dbg</filename> packages, respectively.
-            For other types of runtime dependencies, you must manually declare
-            the dependencies.
-            <itemizedlist>
-                <listitem><para>
-                    <filename>shlibdeps</filename>:
-                    During the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package'><filename>do_package</filename></ulink>
-                    task of each recipe, all shared libraries installed by the
-                    recipe are located.
-                    For each shared library, the package that contains the
-                    shared library is registered as providing the shared
-                    library.
-                    More specifically, the package is registered as providing
-                    the
-                    <ulink url='https://en.wikipedia.org/wiki/Soname'>soname</ulink>
-                    of the library.
-                    The resulting shared-library-to-package mapping
-                    is saved globally in
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PKGDATA_DIR'><filename>PKGDATA_DIR</filename></ulink>
-                    by the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-packagedata'><filename>do_packagedata</filename></ulink>
-                    task.</para>
-
-                    <para>Simultaneously, all executables and shared libraries
-                    installed by the recipe are inspected to see what shared
-                    libraries they link against.
-                    For each shared library dependency that is found,
-                    <filename>PKGDATA_DIR</filename> is queried to
-                    see if some package (likely from a different recipe)
-                    contains the shared library.
-                    If such a package is found, a runtime dependency is added
-                    from the package that depends on the shared library to the
-                    package that contains the library.</para>
-
-                    <para>The automatically added runtime dependency also
-                    includes a version restriction.
-                    This version restriction specifies that at least the
-                    current version of the package that provides the shared
-                    library must be used, as if
-                    "<replaceable>package</replaceable> (>= <replaceable>version</replaceable>)"
-                    had been added to <filename>RDEPENDS</filename>.
-                    This forces an upgrade of the package containing the shared
-                    library when installing the package that depends on the
-                    library, if needed.</para>
-
-                    <para>If you want to avoid a package being registered as
-                    providing a particular shared library (e.g. because the library
-                    is for internal use only), then add the library to
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PRIVATE_LIBS'><filename>PRIVATE_LIBS</filename></ulink>
-                    inside the package's recipe.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>pcdeps</filename>:
-                    During the <filename>do_package</filename> task of each
-                    recipe, all pkg-config modules
-                    (<filename>*.pc</filename> files) installed by the recipe
-                    are located.
-                    For each module, the package that contains the module is
-                    registered as providing the module.
-                    The resulting module-to-package mapping is saved globally in
-                    <filename>PKGDATA_DIR</filename> by the
-                    <filename>do_packagedata</filename> task.</para>
-
-                    <para>Simultaneously, all pkg-config modules installed by
-                    the recipe are inspected to see what other pkg-config
-                    modules they depend on.
-                    A module is seen as depending on another module if it
-                    contains a "Requires:" line that specifies the other module.
-                    For each module dependency,
-                    <filename>PKGDATA_DIR</filename> is queried to see if some
-                    package contains the module.
-                    If such a package is found, a runtime dependency is added
-                    from the package that depends on the module to the package
-                    that contains the module.
-                    <note>
-                        The <filename>pcdeps</filename> mechanism most often
-                        infers dependencies between <filename>-dev</filename>
-                        packages.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>depchains</filename>:
-                    If a package <filename>foo</filename> depends on a package
-                    <filename>bar</filename>, then <filename>foo-dev</filename>
-                    and <filename>foo-dbg</filename> are also made to depend on
-                    <filename>bar-dev</filename> and
-                    <filename>bar-dbg</filename>, respectively.
-                    Taking the <filename>-dev</filename> packages as an
-                    example, the <filename>bar-dev</filename> package might
-                    provide headers and shared library symlinks needed by
-                    <filename>foo-dev</filename>, which shows the need
-                    for a dependency between the packages.</para>
-
-                    <para>The dependencies added by
-                    <filename>depchains</filename> are in the form of
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-RRECOMMENDS'><filename>RRECOMMENDS</filename></ulink>.
-                    <note>
-                        By default, <filename>foo-dev</filename> also has an
-                        <filename>RDEPENDS</filename>-style dependency on
-                        <filename>foo</filename>, because the default value of
-                        <filename>RDEPENDS_${PN}-dev</filename> (set in
-                        <filename>bitbake.conf</filename>) includes
-                        "${PN}".
-                    </note></para>
-
-                    <para>To ensure that the dependency chain is never broken,
-                    <filename>-dev</filename> and <filename>-dbg</filename>
-                    packages are always generated by default, even if the
-                    packages turn out to be empty.
-                    See the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-ALLOW_EMPTY'><filename>ALLOW_EMPTY</filename></ulink>
-                    variable for more information.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            The <filename>do_package</filename> task depends on the
-            <filename>do_packagedata</filename> task of each recipe in
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPENDS'><filename>DEPENDS</filename></ulink>
-            through use of a
-            <filename>[</filename><ulink url='&YOCTO_DOCS_BB_URL;#variable-flags'><filename>deptask</filename></ulink><filename>]</filename>
-            declaration, which guarantees that the required
-            shared-library/module-to-package mapping information will be available
-            when needed as long as <filename>DEPENDS</filename> has been
-            correctly set.
-        </para>
-    </section>
-
-    <section id='fakeroot-and-pseudo'>
-        <title>Fakeroot and Pseudo</title>
-
-        <para>
-            Some tasks are easier to implement when allowed to perform certain
-            operations that are normally reserved for the root user (e.g.
-            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>,
-            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package_write_deb'><filename>do_package_write*</filename></ulink>,
-            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-rootfs'><filename>do_rootfs</filename></ulink>,
-            and
-            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-image'><filename>do_image*</filename></ulink>).
-            For example, the <filename>do_install</filename> task benefits
-            from being able to set the UID and GID of installed files to
-            arbitrary values.
-        </para>
-
-        <para>
-            One approach to allowing tasks to perform root-only operations
-            would be to require
-            <ulink url='&YOCTO_DOCS_REF_URL;#bitbake-term'>BitBake</ulink>
-            to run as root.
-            However, this method is cumbersome and has security issues.
-            The approach that is actually used is to run tasks that benefit
-            from root privileges in a "fake" root environment.
-            Within this environment, the task and its child processes believe
-            that they are running as the root user, and see an internally
-            consistent view of the filesystem.
-            As long as generating the final output (e.g. a package or an image)
-            does not require root privileges, the fact that some earlier
-            steps ran in a fake root environment does not cause problems.
-        </para>
-
-        <para>
-            The capability to run tasks in a fake root environment is known as
-            "<ulink url='http://man.he.net/man1/fakeroot'>fakeroot</ulink>",
-            which is derived from the BitBake keyword/variable
-            flag that requests a fake root environment for a task.
-        </para>
-
-        <para>
-            In the
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>,
-            the program that implements fakeroot is known as
-            <ulink url='https://www.yoctoproject.org/software-item/pseudo/'>Pseudo</ulink>.
-            Pseudo overrides system calls by using the environment variable
-            <filename>LD_PRELOAD</filename>, which results in the illusion
-            of running as root.
-            To keep track of "fake" file ownership and permissions resulting
-            from operations that require root permissions, Pseudo uses
-            an SQLite 3 database.
-            This database is stored in
-            <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-WORKDIR'><filename>WORKDIR</filename></ulink><filename>}/pseudo/files.db</filename>
-            for individual recipes.
-            Storing the database in a file as opposed to in memory
-            gives persistence between tasks and builds, which is not
-            accomplished using fakeroot.
-            <note><title>Caution</title>
-                If you add your own task that manipulates the same files or
-                directories as a fakeroot task, then that task also needs to
-                run under fakeroot.
-                Otherwise, the task cannot run root-only operations, and
-                cannot see the fake file ownership and permissions set by the
-                other task.
-                You need to also add a dependency on
-                <filename>virtual/fakeroot-native:do_populate_sysroot</filename>,
-                giving the following:
-                <literallayout class='monospaced'>
-       fakeroot do_mytask () {
-           ...
-       }
-       do_mytask[depends] += "virtual/fakeroot-native:do_populate_sysroot"
-                </literallayout>
-            </note>
-            For more information, see the
-            <ulink url='&YOCTO_DOCS_BB_URL;#var-FAKEROOT'><filename>FAKEROOT*</filename></ulink>
-            variables in the BitBake User Manual.
-            You can also reference the
-            "<ulink url='https://github.com/wrpseudo/pseudo/wiki/WhyNotFakeroot'>Why Not Fakeroot?</ulink>"
-            article for background information on Fakeroot and Pseudo.
-        </para>
-    </section>
-</chapter>
-<!--
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-
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diff --git a/poky/documentation/overview-manual/overview-manual-development-environment.rst b/poky/documentation/overview-manual/overview-manual-development-environment.rst
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--- a/poky/documentation/overview-manual/overview-manual-development-environment.rst
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@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *****************************************
 The Yocto Project Development Environment
diff --git a/poky/documentation/overview-manual/overview-manual-development-environment.xml b/poky/documentation/overview-manual/overview-manual-development-environment.xml
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-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='overview-development-environment'>
-<title>The Yocto Project Development Environment</title>
-
-<para>
-    This chapter takes a look at the Yocto Project development
-    environment.
-    The chapter provides Yocto Project Development environment concepts that
-    help you understand how work is accomplished in an open source environment,
-    which is very different as compared to work accomplished in a closed,
-    proprietary environment.
-</para>
-
-<para>
-    Specifically, this chapter addresses open source philosophy, source
-    repositories, workflows, Git, and licensing.
-</para>
-
-<section id='open-source-philosophy'>
-    <title>Open Source Philosophy</title>
-
-    <para>
-        Open source philosophy is characterized by software development
-        directed by peer production and collaboration through an active
-        community of developers.
-        Contrast this to the more standard centralized development models
-        used by commercial software companies where a finite set of developers
-        produces a product for sale using a defined set of procedures that
-        ultimately result in an end product whose architecture and source
-        material are closed to the public.
-    </para>
-
-    <para>
-        Open source projects conceptually have differing concurrent agendas,
-        approaches, and production.
-        These facets of the development process can come from anyone in the
-        public (community) who has a stake in the software project.
-        The open source environment contains new copyright, licensing, domain,
-        and consumer issues that differ from the more traditional development
-        environment.
-        In an open source environment, the end product, source material,
-        and documentation are all available to the public at no cost.
-    </para>
-
-    <para>
-        A benchmark example of an open source project is the Linux kernel,
-        which was initially conceived and created by Finnish computer science
-        student Linus Torvalds in 1991.
-        Conversely, a good example of a non-open source project is the
-        <trademark class='registered'>Windows</trademark> family of operating
-        systems developed by
-        <trademark class='registered'>Microsoft</trademark> Corporation.
-    </para>
-
-    <para>
-        Wikipedia has a good historical description of the Open Source
-        Philosophy
-        <ulink url='http://en.wikipedia.org/wiki/Open_source'>here</ulink>.
-        You can also find helpful information on how to participate in the
-        Linux Community
-        <ulink url='http://ldn.linuxfoundation.org/book/how-participate-linux-community'>here</ulink>.
-    </para>
-</section>
-
-<section id='gs-the-development-host'>
-    <title>The Development Host</title>
-
-    <para>
-        A development host or
-        <ulink url='&YOCTO_DOCS_REF_URL;#hardware-build-system-term'>build host</ulink>
-        is key to using the Yocto Project.
-        Because the goal of the Yocto Project is to develop images or
-        applications that run on embedded hardware, development of those
-        images and applications generally takes place on a system not
-        intended to run the software - the development host.
-    </para>
-
-    <para>
-        You need to set up a development host in order to use it with the
-        Yocto Project.
-        Most find that it is best to have a native Linux machine function as
-        the development host.
-        However, it is possible to use a system that does not run Linux
-        as its operating system as your development host.
-        When you have a Mac or Windows-based system, you can set it up
-        as the development host by using
-        <ulink url='https://github.com/crops/poky-container'>CROPS</ulink>,
-        which leverages
-        <ulink url='https://www.docker.com/'>Docker Containers</ulink>.
-        Once you take the steps to set up a CROPS machine, you effectively
-        have access to a shell environment that is similar to what you see
-        when using a Linux-based development host.
-        For the steps needed to set up a system using CROPS, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#setting-up-to-use-crops'>Setting Up to Use CROss PlatformS (CROPS)</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-
-    <para>
-        If your development host is going to be a system that runs a Linux
-        distribution, steps still exist that you must take to prepare the
-        system for use with the Yocto Project.
-        You need to be sure that the Linux distribution on the system is
-        one that supports the Yocto Project.
-        You also need to be sure that the correct set of host packages are
-        installed that allow development using the Yocto Project.
-        For the steps needed to set up a development host that runs Linux,
-        see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#setting-up-a-native-linux-host'>Setting Up a Native Linux Host</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-
-    <para>
-        Once your development host is set up to use the Yocto Project,
-        several methods exist for you to do work in the Yocto Project
-        environment:
-        <itemizedlist>
-            <listitem><para>
-                <emphasis>Command Lines, BitBake, and Shells:</emphasis>
-                Traditional development in the Yocto Project involves using the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>,
-                which uses BitBake, in a command-line environment from a shell
-                on your development host.
-                You can accomplish this from a host that is a native Linux
-                machine or from a host that has been set up with CROPS.
-                Either way, you create, modify, and build images and
-                applications all within a shell-based environment using
-                components and tools available through your Linux distribution
-                and the Yocto Project.</para>
-
-                <para>For a general flow of the build procedures, see the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-building-a-simple-image'>Building a Simple Image</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Board Support Package (BSP) Development:</emphasis>
-                Development of BSPs involves using the Yocto Project to
-                create and test layers that allow easy development of
-                images and applications targeted for specific hardware.
-                To development BSPs, you need to take some additional steps
-                beyond what was described in setting up a development host.
-                </para>
-
-                <para>The
-                <ulink url='&YOCTO_DOCS_BSP_URL;'>Yocto Project Board Support Package (BSP) Developer's Guide</ulink>
-                provides BSP-related development information.
-                For specifics on development host preparation, see the
-                "<ulink url='&YOCTO_DOCS_BSP_URL;#preparing-your-build-host-to-work-with-bsp-layers'>Preparing Your Build Host to Work With BSP Layers</ulink>"
-                section in the Yocto Project Board Support Package (BSP)
-                Developer's Guide.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Kernel Development:</emphasis>
-                If you are going to be developing kernels using the Yocto
-                Project you likely will be using <filename>devtool</filename>.
-                A workflow using <filename>devtool</filename> makes kernel
-                development quicker by reducing iteration cycle times.</para>
-
-                <para>The
-                <ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;'>Yocto Project Linux Kernel Development Manual</ulink>
-                provides kernel-related development information.
-                For specifics on development host preparation, see the
-                "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#preparing-the-build-host-to-work-on-the-kernel'>Preparing the Build Host to Work on the Kernel</ulink>"
-                section in the Yocto Project Linux Kernel Development Manual.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Using Toaster:</emphasis>
-                The other Yocto Project development method that involves an
-                interface that effectively puts the Yocto Project into the
-                background is Toaster.
-                Toaster provides an interface to the OpenEmbedded build system.
-                The interface enables you to configure and run your builds.
-                Information about builds is collected and stored in a database.
-                You can use Toaster to configure and start builds on multiple
-                remote build servers.</para>
-
-                <para>For steps that show you how to set up your development
-                host to use Toaster and on how to use Toaster in general,
-                see the
-                <ulink url='&YOCTO_DOCS_TOAST_URL;'>Toaster User Manual</ulink>.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='yocto-project-repositories'>
-    <title>Yocto Project Source Repositories</title>
-
-    <para>
-        The Yocto Project team maintains complete source repositories for all
-        Yocto Project files at
-        <ulink url='&YOCTO_GIT_URL;'></ulink>.
-        This web-based source code browser is organized into categories by
-        function such as IDE Plugins, Matchbox, Poky, Yocto Linux Kernel, and
-        so forth.
-        From the interface, you can click on any particular item in the "Name"
-        column and see the URL at the bottom of the page that you need to clone
-        a Git repository for that particular item.
-        Having a local Git repository of the
-        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>,
-        which is usually named "poky", allows
-        you to make changes, contribute to the history, and ultimately enhance
-        the Yocto Project's tools, Board Support Packages, and so forth.
-    </para>
-
-    <para>
-        For any supported release of Yocto Project, you can also go to the
-        <ulink url='&YOCTO_HOME_URL;'>Yocto Project Website</ulink> and
-        select the "DOWNLOADS" item from the "SOFTWARE" menu and get a
-        released tarball of the <filename>poky</filename> repository, any
-        supported BSP tarball, or Yocto Project tools.
-        Unpacking these tarballs gives you a snapshot of the released
-        files.
-        <note><title>Notes</title>
-            <itemizedlist>
-                <listitem><para>
-                    The recommended method for setting up the Yocto Project
-                    <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                    and the files for supported BSPs
-                    (e.g., <filename>meta-intel</filename>) is to use
-                    <link linkend='git'>Git</link> to create a local copy of
-                    the upstream repositories.
-                    </para></listitem>
-                <listitem><para>
-                    Be sure to always work in matching branches for both
-                    the selected BSP repository and the Source Directory
-                    (i.e. <filename>poky</filename>) repository.
-                    For example, if you have checked out the "master" branch
-                    of <filename>poky</filename> and you are going to use
-                    <filename>meta-intel</filename>, be sure to checkout the
-                    "master" branch of <filename>meta-intel</filename>.
-                    </para></listitem>
-            </itemizedlist>
-        </note>
-    </para>
-
-    <para>
-        In summary, here is where you can get the project files needed for
-        development:
-        <itemizedlist>
-            <listitem><para id='source-repositories'>
-                <emphasis>
-                <ulink url='&YOCTO_GIT_URL;'>Source Repositories:</ulink>
-                </emphasis>
-                This area contains IDE Plugins, Matchbox, Poky, Poky Support,
-                Tools, Yocto Linux Kernel, and Yocto Metadata Layers.
-                You can create local copies of Git repositories for each of
-                these areas.</para>
-
-                <para>
-                <imagedata fileref="figures/source-repos.png" align="center" width="6in" depth="4in" />
-                For steps on how to view and access these upstream Git
-                repositories, see the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#accessing-source-repositories'>Accessing Source Repositories</ulink>"
-                Section in the Yocto Project Development Tasks Manual.
-                </para></listitem>
-            <listitem><para><anchor id='index-downloads' />
-                <emphasis>
-                <ulink url='&YOCTO_DL_URL;/releases/'>Index of /releases:</ulink>
-                </emphasis>
-                This is an index of releases such as Poky, Pseudo, installers
-                for cross-development toolchains, miscellaneous support
-                and all released versions of Yocto Project in the form of
-                images or tarballs.
-                Downloading and extracting these files does not produce a local
-                copy of the Git repository but rather a snapshot of a
-                particular release or image.</para>
-
-                <para>
-                <imagedata fileref="figures/index-downloads.png" align="center" width="6in" depth="3.5in" />
-                For steps on how to view and access these files, see the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#accessing-index-of-releases'>Accessing Index of Releases</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-                </para></listitem>
-            <listitem><para id='downloads-page'>
-                <emphasis>"DOWNLOADS" page for the
-                <ulink url='&YOCTO_HOME_URL;'>Yocto Project Website</ulink>:
-                </emphasis></para>
-
-                <para>The Yocto Project website includes a "DOWNLOADS" page
-                accessible through the "SOFTWARE" menu that allows you to
-                download any Yocto Project release, tool, and Board Support
-                Package (BSP) in tarball form.
-                The tarballs are similar to those found in the
-                <ulink url='&YOCTO_DL_URL;/releases/'>Index of /releases:</ulink>
-                area.</para>
-
-                <para>
-                <imagedata fileref="figures/yp-download.png" align="center" width="6in" depth="4in" />
-                For steps on how to use the "DOWNLOADS" page, see the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#using-the-downloads-page'>Using the Downloads Page</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='gs-git-workflows-and-the-yocto-project'>
-    <title>Git Workflows and the Yocto Project</title>
-
-    <para>
-        Developing using the Yocto Project likely requires the use of
-        <link linkend='git'>Git</link>.
-        Git is a free, open source distributed version control system
-        used as part of many collaborative design environments.
-        This section provides workflow concepts using the Yocto Project and
-        Git.
-        In particular, the information covers basic practices that describe
-        roles and actions in a collaborative development environment.
-        <note>
-            If you are familiar with this type of development environment, you
-            might not want to read this section.
-        </note>
-    </para>
-
-    <para>
-        The Yocto Project files are maintained using Git in "branches"
-        whose Git histories track every change and whose structures
-        provide branches for all diverging functionality.
-        Although there is no need to use Git, many open source projects do so.
-    <para>
-
-    </para>
-        For the Yocto Project, a key individual called the "maintainer" is
-        responsible for the integrity of the "master" branch of a given Git
-        repository.
-        The "master" branch is the "upstream" repository from which final or
-        most recent builds of a project occur.
-        The maintainer is responsible for accepting changes from other
-        developers and for organizing the underlying branch structure to
-        reflect release strategies and so forth.
-        <note>
-            For information on finding out who is responsible for (maintains)
-            a particular area of code in the Yocto Project, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#how-to-submit-a-change'>Submitting a Change to the Yocto Project</ulink>"
-            section of the Yocto Project Development Tasks Manual.
-        </note>
-    </para>
-
-    <para>
-        The Yocto Project <filename>poky</filename> Git repository also has an
-        upstream contribution Git repository named
-        <filename>poky-contrib</filename>.
-        You can see all the branches in this repository using the web interface
-        of the
-        <ulink url='&YOCTO_GIT_URL;'>Source Repositories</ulink> organized
-        within the "Poky Support" area.
-        These branches hold changes (commits) to the project that have been
-        submitted or committed by the Yocto Project development team and by
-        community members who contribute to the project.
-        The maintainer determines if the changes are qualified to be moved
-        from the "contrib" branches into the "master" branch of the Git
-        repository.
-    </para>
-
-    <para>
-        Developers (including contributing community members) create and
-        maintain cloned repositories of upstream branches.
-        The cloned repositories are local to their development platforms and
-        are used to develop changes.
-        When a developer is satisfied with a particular feature or change,
-        they "push" the change to the appropriate "contrib" repository.
-    </para>
-
-    <para>
-        Developers are responsible for keeping their local repository
-        up-to-date with whatever upstream branch they are working against.
-        They are also responsible for straightening out any conflicts that
-        might arise within files that are being worked on simultaneously by
-        more than one person.
-        All this work is done locally on the development host before
-        anything is pushed to a "contrib" area and examined at the maintainer's
-        level.
-    </para>
-
-    <para>
-        A somewhat formal method exists by which developers commit changes
-        and push them into the "contrib" area and subsequently request that
-        the maintainer include them into an upstream branch.
-        This process is called "submitting a patch" or "submitting a change."
-        For information on submitting patches and changes, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#how-to-submit-a-change'>Submitting a Change to the Yocto Project</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-
-    <para>
-        In summary, a single point of entry
-        exists for changes into a "master" or development branch of the
-        Git repository, which is controlled by the project's maintainer.
-        And, a set of developers exist who independently develop, test, and
-        submit changes to "contrib" areas for the maintainer to examine.
-        The maintainer then chooses which changes are going to become a
-        permanent part of the project.
-    </para>
-
-    <para>
-        <imagedata fileref="figures/git-workflow.png" width="6in" depth="3in" align="left" scalefit="1" />
-    </para>
-
-    <para>
-        While each development environment is unique, there are some best
-        practices or methods that help development run smoothly.
-        The following list describes some of these practices.
-        For more information about Git workflows, see the workflow topics in
-        the
-        <ulink url='http://book.git-scm.com'>Git Community Book</ulink>.
-        <itemizedlist>
-            <listitem><para>
-                <emphasis>Make Small Changes:</emphasis>
-                It is best to keep the changes you commit small as compared to
-                bundling many disparate changes into a single commit.
-                This practice not only keeps things manageable but also allows
-                the maintainer to more easily include or refuse changes.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Make Complete Changes:</emphasis>
-                It is also good practice to leave the repository in a
-                state that allows you to still successfully build your project.
-                In other words, do not commit half of a feature,
-                then add the other half as a separate, later commit.
-                Each commit should take you from one buildable project state
-                to another buildable state.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Use Branches Liberally:</emphasis>
-                It is very easy to create, use, and delete local branches in
-                your working Git repository on the development host.
-                You can name these branches anything you like.
-                It is helpful to give them names associated with the particular
-                feature or change on which you are working.
-                Once you are done with a feature or change and have merged it
-                into your local master branch, simply discard the temporary
-                branch.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Merge Changes:</emphasis>
-                The <filename>git merge</filename> command allows you to take
-                the changes from one branch and fold them into another branch.
-                This process is especially helpful when more than a single
-                developer might be working on different parts of the same
-                feature.
-                Merging changes also automatically identifies any collisions
-                or "conflicts" that might happen as a result of the same lines
-                of code being altered by two different developers.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Manage Branches:</emphasis>
-                Because branches are easy to use, you should use a system
-                where branches indicate varying levels of code readiness.
-                For example, you can have a "work" branch to develop in, a
-                "test" branch where the code or change is tested, a "stage"
-                branch where changes are ready to be committed, and so forth.
-                As your project develops, you can merge code across the
-                branches to reflect ever-increasing stable states of the
-                development.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Use Push and Pull:</emphasis>
-                The push-pull workflow is based on the concept of developers
-                "pushing" local commits to a remote repository, which is
-                usually a contribution repository.
-                This workflow is also based on developers "pulling" known
-                states of the project down into their local development
-                repositories.
-                The workflow easily allows you to pull changes submitted by
-                other developers from the upstream repository into your
-                work area ensuring that you have the most recent software
-                on which to develop.
-                The Yocto Project has two scripts named
-                <filename>create-pull-request</filename> and
-                <filename>send-pull-request</filename> that ship with the
-                release to facilitate this workflow.
-                You can find these scripts in the <filename>scripts</filename>
-                folder of the
-                <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>.
-                For information on how to use these scripts, see the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#pushing-a-change-upstream'>Using Scripts to Push a Change Upstream and Request a Pull</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Patch Workflow:</emphasis>
-                This workflow allows you to notify the maintainer through an
-                email that you have a change (or patch) you would like
-                considered for the "master" branch of the Git repository.
-                To send this type of change, you format the patch and then
-                send the email using the Git commands
-                <filename>git format-patch</filename> and
-                <filename>git send-email</filename>.
-                For information on how to use these scripts, see the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#how-to-submit-a-change'>Submitting a Change to the Yocto Project</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='git'>
-    <title>Git</title>
-
-    <para>
-        The Yocto Project makes extensive use of Git, which is a
-        free, open source distributed version control system.
-        Git supports distributed development, non-linear development,
-        and can handle large projects.
-        It is best that you have some fundamental understanding
-        of how Git tracks projects and how to work with Git if
-        you are going to use the Yocto Project for development.
-        This section provides a quick overview of how Git works and
-        provides you with a summary of some essential Git commands.
-        <note><title>Notes</title>
-            <itemizedlist>
-                <listitem><para>
-                    For more information on Git, see
-                    <ulink url='http://git-scm.com/documentation'></ulink>.
-                    </para></listitem>
-                <listitem><para>
-                    If you need to download Git, it is recommended that you add
-                    Git to your system through your distribution's "software
-                    store" (e.g. for Ubuntu, use the Ubuntu Software feature).
-                    For the Git download page, see
-                    <ulink url='http://git-scm.com/download'></ulink>.
-                    </para></listitem>
-                <listitem><para>
-                    For information beyond the introductory nature in this
-                    section, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#locating-yocto-project-source-files'>Locating Yocto Project Source Files</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    </para></listitem>
-            </itemizedlist>
-        </note>
-    </para>
-
-    <section id='repositories-tags-and-branches'>
-        <title>Repositories, Tags, and Branches</title>
-
-        <para>
-            As mentioned briefly in the previous section and also in the
-            "<link linkend='gs-git-workflows-and-the-yocto-project'>Git Workflows and the Yocto Project</link>"
-            section, the Yocto Project maintains source repositories at
-            <ulink url='&YOCTO_GIT_URL;'></ulink>.
-            If you look at this web-interface of the repositories, each item
-            is a separate Git repository.
-        </para>
-
-        <para>
-            Git repositories use branching techniques that track content
-            change (not files) within a project (e.g. a new feature or updated
-            documentation).
-            Creating a tree-like structure based on project divergence allows
-            for excellent historical information over the life of a project.
-            This methodology also allows for an environment from which you can
-            do lots of local experimentation on projects as you develop
-            changes or new features.
-        </para>
-
-        <para>
-            A Git repository represents all development efforts for a given
-            project.
-            For example, the Git repository <filename>poky</filename> contains
-            all changes and developments for that repository over the course
-            of its entire life.
-            That means that all changes that make up all releases are captured.
-            The repository maintains a complete history of changes.
-        </para>
-
-        <para>
-            You can create a local copy of any repository by "cloning" it
-            with the <filename>git clone</filename> command.
-            When you clone a Git repository, you end up with an identical
-            copy of the repository on your development system.
-            Once you have a local copy of a repository, you can take steps to
-            develop locally.
-            For examples on how to clone Git repositories, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#locating-yocto-project-source-files'>Locating Yocto Project Source Files</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-
-        <para>
-            It is important to understand that Git tracks content change and
-            not files.
-            Git uses "branches" to organize different development efforts.
-            For example, the <filename>poky</filename> repository has
-            several branches that include the current "&DISTRO_NAME_NO_CAP;"
-            branch, the "master" branch, and many branches for past
-            Yocto Project releases.
-            You can see all the branches by going to
-            <ulink url='&YOCTO_GIT_URL;/cgit.cgi/poky/'></ulink> and
-            clicking on the
-            <filename><ulink url='&YOCTO_GIT_URL;/cgit.cgi/poky/refs/heads'>[...]</ulink></filename>
-            link beneath the "Branch" heading.
-        </para>
-
-        <para>
-            Each of these branches represents a specific area of development.
-            The "master" branch represents the current or most recent
-            development.
-            All other branches represent offshoots of the "master" branch.
-        </para>
-
-        <para>
-            When you create a local copy of a Git repository, the copy has
-            the same set of branches as the original.
-            This means you can use Git to create a local working area
-            (also called a branch) that tracks a specific development branch
-            from the upstream source Git repository.
-            in other words, you can define your local Git environment to
-            work on any development branch in the repository.
-            To help illustrate, consider the following example Git commands:
-            <literallayout class='monospaced'>
-     $ cd ~
-     $ git clone git://git.yoctoproject.org/poky
-     $ cd poky
-     $ git checkout -b &DISTRO_NAME_NO_CAP; origin/&DISTRO_NAME_NO_CAP;
-            </literallayout>
-            In the previous example after moving to the home directory, the
-            <filename>git clone</filename> command creates a
-            local copy of the upstream <filename>poky</filename> Git repository.
-            By default, Git checks out the "master" branch for your work.
-            After changing the working directory to the new local repository
-            (i.e. <filename>poky</filename>), the
-            <filename>git checkout</filename> command creates
-            and checks out a local branch named "&DISTRO_NAME_NO_CAP;", which
-            tracks the upstream "origin/&DISTRO_NAME_NO_CAP;" branch.
-            Changes you make while in this branch would ultimately affect
-            the upstream "&DISTRO_NAME_NO_CAP;" branch of the
-            <filename>poky</filename> repository.
-        </para>
-
-        <para>
-            It is important to understand that when you create and checkout a
-            local working branch based on a branch name,
-            your local environment matches the "tip" of that particular
-            development branch at the time you created your local branch,
-            which could be different from the files in the "master" branch
-            of the upstream repository.
-            In other words, creating and checking out a local branch based on
-            the "&DISTRO_NAME_NO_CAP;" branch name is not the same as
-            checking out the "master" branch in the repository.
-            Keep reading to see how you create a local snapshot of a Yocto
-            Project Release.
-        </para>
-
-        <para>
-            Git uses "tags" to mark specific changes in a repository branch
-            structure.
-            Typically, a tag is used to mark a special point such as the final
-            change (or commit) before a project is released.
-            You can see the tags used with the <filename>poky</filename> Git
-            repository by going to
-            <ulink url='&YOCTO_GIT_URL;/cgit.cgi/poky/'></ulink> and
-            clicking on the
-            <filename><ulink url='&YOCTO_GIT_URL;/cgit.cgi/poky/refs/tags'>[...]</ulink></filename>
-            link beneath the "Tag" heading.
-        </para>
-
-        <para>
-            Some key tags for the <filename>poky</filename> repository are
-            <filename>jethro-14.0.3</filename>,
-            <filename>morty-16.0.1</filename>,
-            <filename>pyro-17.0.0</filename>, and
-            <filename>&DISTRO_NAME_NO_CAP;-&POKYVERSION;</filename>.
-            These tags represent Yocto Project releases.
-        </para>
-
-        <para>
-            When you create a local copy of the Git repository, you also
-            have access to all the tags in the upstream repository.
-            Similar to branches, you can create and checkout a local working
-            Git branch based on a tag name.
-            When you do this, you get a snapshot of the Git repository that
-            reflects the state of the files when the change was made associated
-            with that tag.
-            The most common use is to checkout a working branch that matches
-            a specific Yocto Project release.
-            Here is an example:
-            <literallayout class='monospaced'>
-     $ cd ~
-     $ git clone git://git.yoctoproject.org/poky
-     $ cd poky
-     $ git fetch --tags
-     $ git checkout tags/rocko-18.0.0 -b my_rocko-18.0.0
-            </literallayout>
-            In this example, the name of the top-level directory of your
-            local Yocto Project repository is <filename>poky</filename>.
-            After moving to the <filename>poky</filename> directory, the
-            <filename>git fetch</filename> command makes all the upstream
-            tags available locally in your repository.
-            Finally, the <filename>git checkout</filename> command
-            creates and checks out a branch named "my-rocko-18.0.0" that is
-            based on the upstream branch whose "HEAD" matches the
-            commit in the repository associated with the "rocko-18.0.0" tag.
-            The files in your repository now exactly match that particular
-            Yocto Project release as it is tagged in the upstream Git
-            repository.
-            It is important to understand that when you create and
-            checkout a local working branch based on a tag, your environment
-            matches a specific point in time and not the entire development
-            branch (i.e. from the "tip" of the branch backwards).
-        </para>
-    </section>
-
-    <section id='basic-commands'>
-        <title>Basic Commands</title>
-
-        <para>
-            Git has an extensive set of commands that lets you manage changes
-            and perform collaboration over the life of a project.
-            Conveniently though, you can manage with a small set of basic
-            operations and workflows once you understand the basic
-            philosophy behind Git.
-            You do not have to be an expert in Git to be functional.
-            A good place to look for instruction on a minimal set of Git
-            commands is
-            <ulink url='http://git-scm.com/documentation'>here</ulink>.
-        </para>
-
-        <para>
-            The following list of Git commands briefly describes some basic
-            Git operations as a way to get started.
-            As with any set of commands, this list (in most cases) simply shows
-            the base command and omits the many arguments it supports.
-            See the Git documentation for complete descriptions and strategies
-            on how to use these commands:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>git init</filename>:</emphasis>
-                    Initializes an empty Git repository.
-                    You cannot use Git commands unless you have a
-                    <filename>.git</filename> repository.
-                    </para></listitem>
-                <listitem><para id='git-commands-clone'>
-                    <emphasis><filename>git clone</filename>:</emphasis>
-                    Creates a local clone of a Git repository that is on
-                    equal footing with a fellow developer's Git repository
-                    or an upstream repository.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>git add</filename>:</emphasis>
-                    Locally stages updated file contents to the index that
-                    Git uses to track changes.
-                    You must stage all files that have changed before you
-                    can commit them.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>git commit</filename>:</emphasis>
-                    Creates a local "commit" that documents the changes you
-                    made.
-                    Only changes that have been staged can be committed.
-                    Commits are used for historical purposes, for determining
-                    if a maintainer of a project will allow the change,
-                    and for ultimately pushing the change from your local
-                    Git repository into the project's upstream repository.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>git status</filename>:</emphasis>
-                    Reports any modified files that possibly need to be
-                    staged and gives you a status of where you stand regarding
-                    local commits as compared to the upstream repository.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>git checkout</filename> <replaceable>branch-name</replaceable>:</emphasis>
-                    Changes your local working branch and in this form
-                    assumes the local branch already exists.
-                    This command is analogous to "cd".
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>git checkout –b</filename> <replaceable>working-branch</replaceable> <replaceable>upstream-branch</replaceable>:</emphasis>
-                    Creates and checks out a working branch on your local
-                    machine.
-                    The local branch tracks the upstream branch.
-                    You can use your local branch to isolate your work.
-                    It is a good idea to use local branches when adding
-                    specific features or changes.
-                    Using isolated branches facilitates easy removal of
-                    changes if they do not work out.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>git branch</filename>:</emphasis>
-                    Displays the existing local branches associated with your
-                    local repository.
-                    The branch that you have currently checked out is noted
-                    with an asterisk character.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>git branch -D</filename> <replaceable>branch-name</replaceable>:</emphasis>
-                    Deletes an existing local branch.
-                    You need to be in a local branch other than the one you
-                    are deleting in order to delete
-                    <replaceable>branch-name</replaceable>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>git pull --rebase</filename>:</emphasis>
-                    Retrieves information from an upstream Git repository
-                    and places it in your local Git repository.
-                    You use this command to make sure you are synchronized with
-                    the repository from which you are basing changes
-                    (.e.g. the "master" branch).
-                    The "--rebase" option ensures that any local commits you
-                    have in your branch are preserved at the top of your
-                    local branch.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>git push</filename> <replaceable>repo-name</replaceable> <replaceable>local-branch</replaceable><filename>:</filename><replaceable>upstream-branch</replaceable>:</emphasis>
-                    Sends all your committed local changes to the upstream Git
-                    repository that your local repository is tracking
-                    (e.g. a contribution repository).
-                    The maintainer of the project draws from these repositories
-                    to merge changes (commits) into the appropriate branch
-                    of project's upstream repository.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>git merge</filename>:</emphasis>
-                    Combines or adds changes from one
-                    local branch of your repository with another branch.
-                    When you create a local Git repository, the default branch
-                    is named "master".
-                    A typical workflow is to create a temporary branch that is
-                    based off "master" that you would use for isolated work.
-                    You would make your changes in that isolated branch,
-                    stage and commit them locally, switch to the "master"
-                    branch, and then use the <filename>git merge</filename>
-                    command to apply the changes from your isolated branch
-                    into the currently checked out branch (e.g. "master").
-                    After the merge is complete and if you are done with
-                    working in that isolated branch, you can safely delete
-                    the isolated branch.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>git cherry-pick</filename> <replaceable>commits</replaceable>:</emphasis>
-                    Choose and apply specific commits from one branch
-                    into another branch.
-                    There are times when you might not be able to merge
-                    all the changes in one branch with
-                    another but need to pick out certain ones.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>gitk</filename>:</emphasis>
-                    Provides a GUI view of the branches and changes in your
-                    local Git repository.
-                    This command is a good way to graphically see where things
-                    have diverged in your local repository.
-                    <note>
-                        You need to install the <filename>gitk</filename>
-                        package on your development system to use this
-                        command.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>git log</filename>:</emphasis>
-                    Reports a history of your commits to the repository.
-                    This report lists all commits regardless of whether you
-                    have pushed them upstream or not.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>git diff</filename>:</emphasis>
-                    Displays line-by-line differences between a local
-                    working file and the same file as understood by Git.
-                    This command is useful to see what you have changed
-                    in any given file.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='licensing'>
-    <title>Licensing</title>
-
-    <para>
-        Because open source projects are open to the public, they have
-        different licensing structures in place.
-        License evolution for both Open Source and Free Software has an
-        interesting history.
-        If you are interested in this history, you can find basic information
-        here:
-        <itemizedlist>
-            <listitem><para>
-                <ulink url='http://en.wikipedia.org/wiki/Open-source_license'>Open source license history</ulink>
-                </para></listitem>
-            <listitem><para>
-                <ulink url='http://en.wikipedia.org/wiki/Free_software_license'>Free software license history</ulink>
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        In general, the Yocto Project is broadly licensed under the
-        Massachusetts Institute of Technology (MIT) License.
-        MIT licensing permits the reuse of software within proprietary
-        software as long as the license is distributed with that software.
-        MIT is also compatible with the GNU General Public License (GPL).
-        Patches to the Yocto Project follow the upstream licensing scheme.
-        You can find information on the MIT license
-        <ulink url='http://www.opensource.org/licenses/mit-license.php'>here</ulink>.
-        You can find information on the GNU GPL
-        <ulink url='http://www.opensource.org/licenses/LGPL-3.0'>here</ulink>.
-    </para>
-
-    <para>
-        When you build an image using the Yocto Project, the build process
-        uses a known list of licenses to ensure compliance.
-        You can find this list in the
-        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-        at <filename>meta/files/common-licenses</filename>.
-        Once the build completes, the list of all licenses found and used
-        during that build are kept in the
-        <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-        at <filename>tmp/deploy/licenses</filename>.
-    </para>
-
-    <para>
-        If a module requires a license that is not in the base list, the
-        build process generates a warning during the build.
-        These tools make it easier for a developer to be certain of the
-        licenses with which their shipped products must comply.
-        However, even with these tools it is still up to the developer to
-        resolve potential licensing issues.
-    </para>
-
-    <para>
-        The base list of licenses used by the build process is a combination
-        of the Software Package Data Exchange (SPDX) list and the Open
-        Source Initiative (OSI) projects.
-        <ulink url='http://spdx.org'>SPDX Group</ulink> is a working group of
-        the Linux Foundation that maintains a specification for a standard
-        format for communicating the components, licenses, and copyrights
-        associated with a software package.
-        <ulink url='http://opensource.org'>OSI</ulink> is a corporation
-        dedicated to the Open Source Definition and the effort for reviewing
-        and approving licenses that conform to the Open Source Definition
-        (OSD).
-    </para>
-
-    <para>
-        You can find a list of the combined SPDX and OSI licenses that the
-        Yocto Project uses in the
-        <filename>meta/files/common-licenses</filename> directory in your
-        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>.
-    </para>
-
-    <para>
-        For information that can help you maintain compliance with various
-        open source licensing during the lifecycle of a product created using
-        the Yocto Project, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#maintaining-open-source-license-compliance-during-your-products-lifecycle'>Maintaining Open Source License Compliance During Your Product's Lifecycle</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-</section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/overview-manual/overview-manual-intro.rst b/poky/documentation/overview-manual/overview-manual-intro.rst
index 3f206fd..8885eb8 100644
--- a/poky/documentation/overview-manual/overview-manual-intro.rst
+++ b/poky/documentation/overview-manual/overview-manual-intro.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 **********************************************
 The Yocto Project Overview and Concepts Manual
diff --git a/poky/documentation/overview-manual/overview-manual-intro.xml b/poky/documentation/overview-manual/overview-manual-intro.xml
deleted file mode 100644
index 0e0bfed..0000000
--- a/poky/documentation/overview-manual/overview-manual-intro.xml
+++ /dev/null
@@ -1,113 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='overview-manual-intro'>
-
-<title>The Yocto Project Overview and Concepts Manual</title>
-    <section id='overview-manual-welcome'>
-        <title>Welcome</title>
-
-        <para>
-            Welcome to the Yocto Project Overview and Concepts Manual!
-            This manual introduces the Yocto Project by providing concepts,
-            software overviews, best-known-methods (BKMs), and any other
-            high-level introductory information suitable for a new Yocto
-            Project user.
-        </para>
-
-        <para>
-            The following list describes what you can get from this manual:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><link linkend='overview-yp'>Introducing the Yocto Project</link>:</emphasis>
-                    This chapter provides an introduction to the Yocto
-                    Project.
-                    You will learn about features and challenges of the
-                    Yocto Project, the layer model, components and tools,
-                    development methods, the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#poky'>Poky</ulink>
-                    reference distribution, the OpenEmbedded build system
-                    workflow, and some basic Yocto terms.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><link linkend='overview-development-environment'>The Yocto Project Development Environment</link>:</emphasis>
-                    This chapter helps you get started understanding the
-                    Yocto Project development environment.
-                    You will learn about open source, development hosts,
-                    Yocto Project source repositories, workflows using Git
-                    and the Yocto Project, a Git primer, and information
-                    about licensing.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><link linkend='overview-manual-concepts'>Yocto Project Concepts</link>:</emphasis>
-                    This chapter presents various concepts regarding the
-                    Yocto Project.
-                    You can find conceptual information about components,
-                    development, cross-toolchains, and so forth.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            This manual does not give you the following:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis>Step-by-step Instructions for Development Tasks:</emphasis>
-                    Instructional procedures reside in other manuals within
-                    the Yocto Project documentation set.
-                    For example, the
-                    <ulink url='&YOCTO_DOCS_DEV_URL;'>Yocto Project Development Tasks Manual</ulink>
-                    provides examples on how to perform various development
-                    tasks.
-                    As another example, the
-                    <ulink url='&YOCTO_DOCS_SDK_URL;'>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</ulink>
-                    manual contains detailed instructions on how to install an
-                    SDK, which is used to develop applications for target
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-                    </para></listitem>
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-                    <ulink url='&YOCTO_DOCS_REF_URL;'>Yocto Project Reference Manual</ulink>.
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-                    <ulink url='&YOCTO_DOCS_BSP_URL;'>Yocto Project Board Support Package (BSP) Developer's Guide</ulink>
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-                    Yocto Project documentation.
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-    <section id='overview-manual-other-information'>
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-        <para>
-            Because this manual presents information for many different
-            topics, supplemental information is recommended for full
-            comprehension.
-            For additional introductory information on the Yocto Project, see
-            the <ulink url='&YOCTO_HOME_URL;'>Yocto Project Website</ulink>.
-            If you want to build an image with no knowledge of Yocto Project
-            as a way of quickly testing it out, see the
-            <ulink url='&YOCTO_DOCS_BRIEF_URL;'>Yocto Project Quick Build</ulink>
-            document.
-            For a comprehensive list of links and other documentation, see the
-            "<ulink url='&YOCTO_DOCS_REF_URL;#resources-links-and-related-documentation'>Links and Related Documentation</ulink>"
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-   color: #333;
-   text-decoration: underline;
-}
-
-.footnote {
-   font-size: small;
-   color: #333;
-}
-
-/* Changes the announcement text */
-.tip h3,
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diff --git a/poky/documentation/overview-manual/overview-manual-yp-intro.rst b/poky/documentation/overview-manual/overview-manual-yp-intro.rst
index 5cdab7c..9073582 100644
--- a/poky/documentation/overview-manual/overview-manual-yp-intro.rst
+++ b/poky/documentation/overview-manual/overview-manual-yp-intro.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *****************************
 Introducing the Yocto Project
diff --git a/poky/documentation/overview-manual/overview-manual-yp-intro.xml b/poky/documentation/overview-manual/overview-manual-yp-intro.xml
deleted file mode 100644
index a2a1f49..0000000
--- a/poky/documentation/overview-manual/overview-manual-yp-intro.xml
+++ /dev/null
@@ -1,1333 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='overview-yp'>
-    <title>Introducing the Yocto Project</title>
-
-    <section id='what-is-the-yocto-project'>
-        <title>What is the Yocto Project?</title>
-
-        <para>
-            The Yocto Project is an open source collaboration project
-            that helps developers create custom Linux-based systems that are
-            designed for embedded products regardless of the product's hardware
-            architecture.
-            Yocto Project provides a flexible toolset and a development
-            environment that allows embedded device developers across the
-            world to collaborate through shared technologies, software stacks,
-            configurations, and best practices used to create these tailored
-            Linux images.
-        </para>
-
-        <para>
-            Thousands of developers worldwide have discovered that Yocto
-            Project provides advantages in both systems and applications
-            development, archival and management benefits, and customizations
-            used for speed, footprint, and memory utilization.
-            The project is a standard when it comes to delivering embedded
-            software stacks.
-            The project allows software customizations and build interchange
-            for multiple hardware platforms as well as software stacks that
-            can be maintained and scaled.
-        </para>
-
-        <para id='yp-key-dev-elements'>
-                <imagedata fileref="figures/key-dev-elements.png" format="PNG" align='center' width="8in"/>
-        </para>
-
-        <para>
-            For further introductory information on the Yocto Project, you
-            might be interested in this
-            <ulink url='https://www.embedded.com/electronics-blogs/say-what-/4458600/Why-the-Yocto-Project-for-my-IoT-Project-'>article</ulink>
-            by Drew Moseley and in this short introductory
-            <ulink url='https://www.youtube.com/watch?v=utZpKM7i5Z4'>video</ulink>.
-        </para>
-
-        <para>
-            The remainder of this section overviews advantages and challenges
-            tied to the Yocto Project.
-        </para>
-
-        <section id='gs-features'>
-            <title>Features</title>
-
-            <para>
-                The following list describes features and advantages of the
-                Yocto Project:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>Widely Adopted Across the Industry:</emphasis>
-                        Semiconductor, operating system, software, and
-                        service vendors exist whose products and services
-                        adopt and support the Yocto Project.
-                        For a look at the Yocto Project community and
-                        the companies involved with the Yocto
-                        Project, see the "COMMUNITY" and "ECOSYSTEM" tabs
-                        on the
-                        <ulink url='&YOCTO_HOME_URL;'>Yocto Project</ulink>
-                        home page.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Architecture Agnostic:</emphasis>
-                        Yocto Project supports Intel, ARM, MIPS, AMD, PPC
-                        and other architectures.
-                        Most ODMs, OSVs, and chip vendors create and supply
-                        BSPs that support their hardware.
-                        If you have custom silicon, you can create a BSP
-                        that supports that architecture.</para>
-
-                        <para>Aside from lots of architecture support, the
-                        Yocto Project fully supports a wide range of device
-                        emulation through the Quick EMUlator (QEMU).
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Images and Code Transfer Easily:</emphasis>
-                        Yocto Project output can easily move between
-                        architectures without moving to new development
-                        environments.
-                        Additionally, if you have used the Yocto Project to
-                        create an image or application and you find yourself
-                        not able to support it, commercial Linux vendors such
-                        as Wind River, Mentor Graphics, Timesys, and ENEA could
-                        take it and provide ongoing support.
-                        These vendors have offerings that are built using
-                        the Yocto Project.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Flexibility:</emphasis>
-                        Corporations use the Yocto Project many different ways.
-                        One example is to create an internal Linux distribution
-                        as a code base the corporation can use across multiple
-                        product groups.
-                        Through customization and layering, a project group
-                        can leverage the base Linux distribution to create
-                        a distribution that works for their product needs.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Ideal for Constrained Embedded and IoT devices:</emphasis>
-                        Unlike a full Linux distribution, you can use the
-                        Yocto Project to create exactly what you need for
-                        embedded devices.
-                        You only add the feature support or packages that you
-                        absolutely need for the device.
-                        For devices that have display hardware, you can use
-                        available system components such as X11, GTK+, Qt,
-                        Clutter, and SDL (among others) to create a rich user
-                        experience.
-                        For devices that do not have a display or where you
-                        want to use alternative UI frameworks, you can choose
-                        to not install these components.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Comprehensive Toolchain Capabilities:</emphasis>
-                        Toolchains for supported architectures satisfy most
-                        use cases.
-                        However, if your hardware supports features that are
-                        not part of a standard toolchain, you can easily
-                        customize that toolchain through specification of
-                        platform-specific tuning parameters.
-                        And, should you need to use a third-party toolchain,
-                        mechanisms built into the Yocto Project allow for that.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Mechanism Rules Over Policy:</emphasis>
-                        Focusing on mechanism rather than policy ensures that
-                        you are free to set policies based on the needs of your
-                        design instead of adopting decisions enforced by some
-                        system software provider.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Uses a Layer Model:</emphasis>
-                        The Yocto Project
-                        <link linkend='the-yocto-project-layer-model'>layer infrastructure</link>
-                        groups related functionality into separate bundles.
-                        You can incrementally add these grouped functionalities
-                        to your project as needed.
-                        Using layers to isolate and group functionality
-                        reduces project complexity and redundancy, allows you
-                        to easily extend the system, make customizations,
-                        and keep functionality organized.
-                        </para></listitem>
-                     <listitem><para>
-                        <emphasis>Supports Partial Builds:</emphasis>
-                        You can build and rebuild individual packages as
-                        needed.
-                        Yocto Project accomplishes this through its
-                        <link linkend='shared-state-cache'>shared-state cache</link>
-                        (sstate) scheme.
-                        Being able to build and debug components individually
-                        eases project development.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Releases According to a Strict Schedule:</emphasis>
-                        Major releases occur on a
-                        <ulink url='&YOCTO_DOCS_REF_URL;#ref-release-process'>six-month cycle</ulink>
-                        predictably in October and April.
-                        The most recent two releases support point releases
-                        to address common vulnerabilities and exposures.
-                        This predictability is crucial for projects based on
-                        the Yocto Project and allows development teams to
-                        plan activities.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Rich Ecosystem of Individuals and Organizations:</emphasis>
-                        For open source projects, the value of community is
-                        very important.
-                        Support forums, expertise, and active developers who
-                        continue to push the Yocto Project forward are readily
-                        available.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Binary Reproducibility:</emphasis>
-                        The Yocto Project allows you to be very specific about
-                        dependencies and achieves very high percentages of
-                        binary reproducibility (e.g. 99.8% for
-                        <filename>core-image-minimal</filename>).
-                        When distributions are not specific about which
-                        packages are pulled in and in what order to support
-                        dependencies, other build systems can arbitrarily
-                        include packages.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>License Manifest:</emphasis>
-                        The Yocto Project provides a
-                        <ulink url='&YOCTO_DOCS_DEV_URL;#maintaining-open-source-license-compliance-during-your-products-lifecycle'>license manifest</ulink>
-                        for review by people who need to track the use of open
-                        source licenses (e.g.legal teams).
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='gs-challenges'>
-            <title>Challenges</title>
-
-            <para>
-                The following list presents challenges you might encounter
-                when developing using the Yocto Project:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>Steep Learning Curve:</emphasis>
-                        The Yocto Project has a steep learning curve and has
-                        many different ways to accomplish similar tasks.
-                        It can be difficult to choose how to proceed when
-                        varying methods exist by which to accomplish a given
-                        task.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Understanding What Changes You Need to Make
-                        For Your Design Requires Some Research:</emphasis>
-                        Beyond the simple tutorial stage, understanding what
-                        changes need to be made for your particular design
-                        can require a significant amount of research and
-                        investigation.
-                        For information that helps you transition from
-                        trying out the Yocto Project to using it for your
-                        project, see the
-                        "<ulink url='&YOCTO_DOCS_URL;/what-i-wish-id-known/'>What I wish I'd Known</ulink>"
-                        and
-                        "<ulink url='&YOCTO_DOCS_URL;/transitioning-to-a-custom-environment/'>Transitioning to a Custom Environment for Systems Development</ulink>"
-                        documents on the Yocto Project website.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Project Workflow Could Be Confusing:</emphasis>
-                        The
-                        <link linkend='overview-development-environment'>Yocto Project workflow</link>
-                        could be confusing if you are used to traditional
-                        desktop and server software development.
-                        In a desktop development environment, mechanisms exist
-                        to easily pull and install new packages, which are
-                        typically pre-compiled binaries from servers accessible
-                        over the Internet.
-                        Using the Yocto Project, you must modify your
-                        configuration and rebuild to add additional packages.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Working in a Cross-Build Environment Can
-                        Feel Unfamiliar:</emphasis>
-                        When developing code to run on a target, compilation,
-                        execution, and testing done on the actual target
-                        can be faster than running a BitBake build on a
-                        development host and then deploying binaries to the
-                        target for test.
-                        While the Yocto Project does support development tools
-                        on the target, the additional step of integrating your
-                        changes back into the Yocto Project build environment
-                        would be required.
-                        Yocto Project supports an intermediate approach that
-                        involves making changes on the development system
-                        within the BitBake environment and then deploying only
-                        the updated packages to the target.</para>
-
-                        <para>The Yocto Project
-                        <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>
-                        produces packages in standard formats (i.e. RPM,
-                        DEB, IPK, and TAR).
-                        You can deploy these packages into the running system
-                        on the target by using utilities on the target such
-                        as <filename>rpm</filename> or
-                        <filename>ipk</filename>.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Initial Build Times Can be Significant:</emphasis>
-                        Long initial build times are unfortunately unavoidable
-                        due to the large number of packages initially built
-                        from scratch for a fully functioning Linux system.
-                        Once that initial build is completed, however, the
-                        shared-state (sstate) cache mechanism Yocto Project
-                        uses keeps the system from rebuilding packages that
-                        have not been "touched" since the last build.
-                        The sstate mechanism significantly reduces times
-                        for successive builds.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-    </section>
-
-    <section id='the-yocto-project-layer-model'>
-        <title>The Yocto Project Layer Model</title>
-
-        <para>
-            The Yocto Project's "Layer Model" is a development model for
-            embedded and IoT Linux creation that distinguishes the
-            Yocto Project from other simple build systems.
-            The Layer Model simultaneously supports collaboration and
-            customization.
-            Layers are repositories that contain related sets of instructions
-            that tell the
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>
-            what to do.
-            You can collaborate, share, and reuse layers.
-        </para>
-
-        <para>
-            Layers can contain changes to previous instructions or settings
-            at any time.
-            This powerful override capability is what allows you to customize
-            previously supplied collaborative or community layers to suit your
-            product requirements.
-        </para>
-
-        <para>
-            You use different layers to logically separate information in your
-            build.
-            As an example, you could have BSP, GUI, distro configuration,
-            middleware, or application layers.
-            Putting your entire build into one layer limits and complicates
-            future customization and reuse.
-            Isolating information into layers, on the other hand, helps
-            simplify future customizations and reuse.
-            You might find it tempting to keep everything in one layer when
-            working on a single project.
-            However, the more modular your Metadata, the easier
-            it is to cope with future changes.
-            <note><title>Notes</title>
-                <itemizedlist>
-                    <listitem><para>
-                        Use Board Support Package (BSP) layers from silicon
-                        vendors when possible.
-                        </para></listitem>
-                    <listitem><para>
-                        Familiarize yourself with the
-                        <ulink url='https://caffelli-staging.yoctoproject.org/software-overview/layers/'>Yocto Project curated layer index</ulink>
-                        or the
-                        <ulink url='http://layers.openembedded.org/layerindex/branch/master/layers/'>OpenEmbedded layer index</ulink>.
-                        The latter contains more layers but they are less
-                        universally validated.
-                        </para></listitem>
-                    <listitem><para>
-                        Layers support the inclusion of technologies, hardware
-                        components, and software components.
-                        The
-                        <ulink url='&YOCTO_DOCS_DEV_URL;#making-sure-your-layer-is-compatible-with-yocto-project'>Yocto Project Compatible</ulink>
-                        designation provides a minimum level of standardization
-                        that contributes to a strong ecosystem.
-                        "YP Compatible" is applied to appropriate products and
-                        software components such as BSPs, other OE-compatible
-                        layers, and related open-source projects, allowing the
-                        producer to use Yocto Project badges and branding
-                        assets.
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-        </para>
-
-        <para>
-            To illustrate how layers are used to keep things modular, consider
-            machine customizations.
-            These types of customizations typically reside in a special layer,
-            rather than a general layer, called a BSP Layer.
-            Furthermore, the machine customizations should be isolated from
-            recipes and Metadata that support a new GUI environment,
-            for example.
-            This situation gives you a couple of layers: one for the machine
-            configurations, and one for the GUI environment.
-            It is important to understand, however, that the BSP layer can
-            still make machine-specific additions to recipes within the GUI
-            environment layer without polluting the GUI layer itself
-            with those machine-specific changes.
-            You can accomplish this through a recipe that is a BitBake append
-            (<filename>.bbappend</filename>) file, which is described later
-            in this section.
-            <note>
-                For general information on BSP layer structure, see the
-                <ulink url='&YOCTO_DOCS_BSP_URL;'>Yocto Project Board Support Packages (BSP) Developer's Guide</ulink>.
-            </note>
-        </para>
-
-        <para>
-            The
-            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-            contains both general layers and BSP layers right out of the box.
-            You can easily identify layers that ship with a Yocto Project
-            release in the Source Directory by their names.
-            Layers typically have names that begin with the string
-            <filename>meta-</filename>.
-            <note>
-                It is not a requirement that a layer name begin with the
-                prefix <filename>meta-</filename>, but it is a commonly
-                accepted standard in the Yocto Project community.
-            </note>
-            For example, if you were to examine the
-            <ulink url='https://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/'>tree view</ulink>
-            of the <filename>poky</filename> repository, you will see several
-            layers: <filename>meta</filename>,
-            <filename>meta-skeleton</filename>,
-            <filename>meta-selftest</filename>,
-            <filename>meta-poky</filename>, and
-            <filename>meta-yocto-bsp</filename>.
-            Each of these repositories represents a distinct layer.
-        </para>
-
-        <para>
-            For procedures on how to create layers, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and Creating Layers</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id='components-and-tools'>
-        <title>Components and Tools</title>
-
-        <para>
-            The Yocto Project employs a collection of components and
-            tools used by the project itself, by project developers,
-            and by those using the Yocto Project.
-            These components and tools are open source projects and
-            metadata that are separate from the reference distribution
-            (<ulink url='&YOCTO_DOCS_REF_URL;#poky'>Poky</ulink>)
-            and the
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>.
-            Most of the components and tools are downloaded separately.
-        </para>
-
-        <para>
-            This section provides brief overviews of the components and
-            tools associated with the Yocto Project.
-        </para>
-
-        <section id='gs-development-tools'>
-            <title>Development Tools</title>
-
-            <para>
-                The following list consists of tools that help you develop
-                images and applications using the Yocto Project:
-                <itemizedlist>
-                    <listitem><para id='gs-crops-overview'>
-                        <emphasis>CROPS:</emphasis>
-                        <ulink url='https://github.com/crops/poky-container/'>CROPS</ulink>
-                        is an open source, cross-platform development framework
-                        that leverages
-                        <ulink url='https://www.docker.com/'>Docker Containers</ulink>.
-                        CROPS provides an easily managed, extensible environment
-                        that allows you to build binaries for a variety of
-                        architectures on Windows, Linux and Mac OS X hosts.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis><filename>devtool</filename>:</emphasis>
-                        This command-line tool is available as part of the
-                        extensible SDK (eSDK) and is its cornerstone.
-                        You can use <filename>devtool</filename> to help build,
-                        test, and package software within the eSDK.
-                        You can use the tool to optionally integrate what you
-                        build into an image built by the OpenEmbedded build
-                        system.</para>
-
-                        <para>The <filename>devtool</filename> command employs
-                        a number of sub-commands that allow you to add, modify,
-                        and upgrade recipes.
-                        As with the OpenEmbedded build system, "recipes"
-                        represent software packages within
-                        <filename>devtool</filename>.
-                        When you use <filename>devtool add</filename>, a recipe
-                        is automatically created.
-                        When you use <filename>devtool modify</filename>, the
-                        specified existing recipe is used in order to determine
-                        where to get the source code and how to patch it.
-                        In both cases, an environment is set up so that when
-                        you build the recipe a source tree that is under your
-                        control is used in order to allow you to make changes
-                        to the source as desired.
-                        By default, both new recipes and the source go into
-                        a "workspace" directory under the eSDK.
-                        The <filename>devtool upgrade</filename> command
-                        updates an existing recipe so that you can build it
-                        for an updated set of source files.</para>
-
-                        <para>You can read about the
-                        <filename>devtool</filename> workflow in the Yocto
-                        Project Application Development and Extensible
-                        Software Development Kit (eSDK) Manual in the
-                        "<ulink url='&YOCTO_DOCS_SDK_URL;#using-devtool-in-your-sdk-workflow'>Using <filename>devtool</filename> in Your SDK Workflow'</ulink>"
-                        section.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Extensible Software Development Kit (eSDK):</emphasis>
-                        The eSDK provides a cross-development toolchain and
-                        libraries tailored to the contents of a specific image.
-                        The eSDK makes it easy to add new applications and
-                        libraries to an image, modify the source for an
-                        existing component, test changes on the target
-                        hardware, and integrate into the rest of the
-                        OpenEmbedded build system.
-                        The eSDK gives you a toolchain experience supplemented
-                        with the powerful set of <filename>devtool</filename>
-                        commands tailored for the Yocto Project environment.
-                        </para>
-
-                        <para>For information on the eSDK, see the
-                        <ulink url='&YOCTO_DOCS_SDK_URL;'>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</ulink>
-                        Manual.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Toaster:</emphasis>
-                        Toaster is a web interface to the Yocto Project
-                        OpenEmbedded build system.
-                        Toaster allows you to configure, run, and view
-                        information about builds.
-                        For information on Toaster, see the
-                        <ulink url='&YOCTO_DOCS_TOAST_URL;'>Toaster User Manual</ulink>.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='gs-production-tools'>
-            <title>Production Tools</title>
-
-            <para>
-                The following list consists of tools that help production
-                related activities using the Yocto Project:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>Auto Upgrade Helper:</emphasis>
-                        This utility when used in conjunction with the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>
-                        (BitBake and OE-Core) automatically generates upgrades
-                        for recipes that are based on new versions of the
-                        recipes published upstream.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Recipe Reporting System:</emphasis>
-                        The Recipe Reporting System tracks recipe versions
-                        available for Yocto Project.
-                        The main purpose of the system is to help you
-                        manage the recipes you maintain and to offer a dynamic
-                        overview of the project.
-                        The Recipe Reporting System is built on top of the
-                        <ulink url="http://layers.openembedded.org/layerindex/layers/">OpenEmbedded Layer Index</ulink>,
-                        which is a website that indexes OpenEmbedded-Core
-                        layers.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Patchwork:</emphasis>
-                        <ulink url='http://jk.ozlabs.org/projects/patchwork/'>Patchwork</ulink>
-                        is a fork of a project originally started by
-                        <ulink url='http://ozlabs.org/'>OzLabs</ulink>.
-                        The project is a web-based tracking system designed
-                        to streamline the process of bringing contributions
-                        into a project.
-                        The Yocto Project uses Patchwork as an organizational
-                        tool to handle patches, which number in the thousands
-                        for every release.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>AutoBuilder:</emphasis>
-                        AutoBuilder is a project that automates build tests
-                        and quality assurance (QA).
-                        By using the public AutoBuilder, anyone can determine
-                        the status of the current "master" branch of Poky.
-                        <note>
-                            AutoBuilder is based on
-                            <ulink url='https://buildbot.net/'>buildbot</ulink>.
-                        </note></para>
-
-                        <para>A goal of the Yocto Project is to lead the
-                        open source industry with a project that automates
-                        testing and QA procedures.
-                        In doing so, the project encourages a development
-                        community that publishes QA and test plans, publicly
-                        demonstrates QA and test plans, and encourages
-                        development of tools that automate and test and QA
-                        procedures for the benefit of the development
-                        community.</para>
-
-                        <para>You can learn more about the AutoBuilder used
-                        by the Yocto Project
-                        <ulink url='&YOCTO_AB_URL;'>here</ulink>.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Cross-Prelink:</emphasis>
-                        Prelinking is the process of pre-computing the load
-                        addresses and link tables generated by the dynamic
-                        linker as compared to doing this at runtime.
-                        Doing this ahead of time results in performance
-                        improvements when the application is launched and
-                        reduced memory usage for libraries shared by many
-                        applications.</para>
-
-                        <para>Historically, cross-prelink is a variant of
-                        prelink, which was conceived by
-                        <ulink url='http://people.redhat.com/jakub/prelink.pdf'>Jakub Jel&iacute;nek</ulink>
-                        a number of years ago.
-                        Both prelink and cross-prelink are maintained in the
-                        same repository albeit on separate branches.
-                        By providing an emulated runtime dynamic linker
-                        (i.e. <filename>glibc</filename>-derived
-                        <filename>ld.so</filename> emulation), the
-                        cross-prelink project extends the prelink software's
-                        ability to prelink a sysroot environment.
-                        Additionally, the cross-prelink software enables the
-                        ability to work in sysroot style environments.</para>
-
-                        <para>The dynamic linker determines standard load
-                        address calculations based on a variety of factors
-                        such as mapping addresses, library usage, and library
-                        function conflicts.
-                        The prelink tool uses this information, from the
-                        dynamic linker, to determine unique load addresses
-                        for executable and linkable format (ELF) binaries
-                        that are shared libraries and dynamically linked.
-                        The prelink tool modifies these ELF binaries with the
-                        pre-computed information.
-                        The result is faster loading and often lower memory
-                        consumption because more of the library code can
-                        be re-used from shared Copy-On-Write (COW) pages.
-                        </para>
-
-                        <para>The original upstream prelink project only
-                        supports running prelink on the end target device
-                        due to the reliance on the target device's dynamic
-                        linker.
-                        This restriction causes issues when developing a
-                        cross-compiled system.
-                        The cross-prelink adds a synthesized dynamic loader
-                        that runs on the host, thus permitting cross-prelinking
-                        without ever having to run on a read-write target
-                        filesystem.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Pseudo:</emphasis>
-                        Pseudo is the Yocto Project implementation of
-                        <ulink url='http://man.he.net/man1/fakeroot'>fakeroot</ulink>,
-                        which is used to run commands in an environment
-                        that seemingly has root privileges.</para>
-
-                        <para>During a build, it can be necessary to perform
-                        operations that require system administrator
-                        privileges.
-                        For example, file ownership or permissions might need
-                        definition.
-                        Pseudo is a tool that you can either use directly or
-                        through the environment variable
-                        <filename>LD_PRELOAD</filename>.
-                        Either method allows these operations to succeed as
-                        if system administrator privileges exist even
-                        when they do not.</para>
-
-                        <para>You can read more about Pseudo in the
-                        "<link linkend='fakeroot-and-pseudo'>Fakeroot and Pseudo</link>"
-                        section.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='gs-openembedded-build-system'>
-            <title>Open-Embedded Build System Components</title>
-
-            <para>
-                The following list consists of components associated with the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>BitBake:</emphasis>
-                        BitBake is a core component of the Yocto Project and is
-                        used by the OpenEmbedded build system to build images.
-                        While BitBake is key to the build system, BitBake
-                        is maintained separately from the Yocto Project.</para>
-
-                        <para>BitBake is a generic task execution engine that
-                        allows shell and Python tasks to be run efficiently
-                        and in parallel while working within complex inter-task
-                        dependency constraints.
-                        In short, BitBake is a build engine that works
-                        through recipes written in a specific format in order
-                        to perform sets of tasks.</para>
-
-                        <para>You can learn more about BitBake in the
-                        <ulink url='&YOCTO_DOCS_BB_URL;'>BitBake User Manual</ulink>.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>OpenEmbedded-Core:</emphasis>
-                        OpenEmbedded-Core (OE-Core) is a common layer of
-                        metadata (i.e. recipes, classes, and associated files)
-                        used by OpenEmbedded-derived systems, which includes
-                        the Yocto Project.
-                        The Yocto Project and the OpenEmbedded Project both
-                        maintain the OpenEmbedded-Core.
-                        You can find the OE-Core metadata in the Yocto Project
-                        <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta'>Source Repositories</ulink>.
-                        </para>
-
-                        <para>Historically, the Yocto Project integrated the
-                        OE-Core metadata throughout the Yocto Project
-                        source repository reference system (Poky).
-                        After Yocto Project Version 1.0, the Yocto Project
-                        and OpenEmbedded agreed to work together and share a
-                        common core set of metadata (OE-Core), which contained
-                        much of the functionality previously found in Poky.
-                        This collaboration achieved a long-standing
-                        OpenEmbedded objective for having a more tightly
-                        controlled and quality-assured core.
-                        The results also fit well with the Yocto Project
-                        objective of achieving a smaller number of fully
-                        featured tools as compared to many different ones.
-                        </para>
-
-                        <para>Sharing a core set of metadata results in Poky
-                        as an integration layer on top of OE-Core.
-                        You can see that in this
-                        <link linkend='yp-key-dev-elements'>figure</link>.
-                        The Yocto Project combines various components such as
-                        BitBake, OE-Core, script "glue", and documentation
-                        for its build system.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='gs-reference-distribution-poky'>
-            <title>Reference Distribution (Poky)</title>
-
-            <para>
-                Poky is the Yocto Project reference distribution.
-                It contains the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>Open-Embedded build system</ulink>
-                (BitBake and OE-Core) as well as a set of metadata to get you
-                started building your own distribution.
-                See the
-                <link linkend='what-is-the-yocto-project'>figure</link> in
-                "What is the Yocto Project?" section for an illustration
-                that shows Poky and its relationship with other parts of the
-                Yocto Project.</para>
-
-                <para>To use the Yocto Project tools and components, you
-                can download (<filename>clone</filename>) Poky and use it
-                to bootstrap your own distribution.
-                <note>
-                    Poky does not contain binary files.
-                    It is a working example of how to build your own custom
-                    Linux distribution from source.
-                </note>
-                You can read more about Poky in the
-                "<link linkend='reference-embedded-distribution'>Reference Embedded Distribution (Poky)</link>"
-                section.
-            </para>
-        </section>
-
-        <section id='gs-packages-for-finished-targets'>
-            <title>Packages for Finished Targets</title>
-
-            <para>
-                The following lists components associated with packages
-                for finished targets:
-                <itemizedlist>
-                    <listitem><para>
-                        <emphasis>Matchbox:</emphasis>
-                        Matchbox is an Open Source, base environment for the
-                        X Window System running on non-desktop, embedded
-                        platforms such as handhelds, set-top boxes, kiosks,
-                        and anything else for which screen space, input
-                        mechanisms, or system resources are limited.</para>
-
-                        <para>Matchbox consists of a number of interchangeable
-                        and optional applications that you can tailor to a
-                        specific, non-desktop platform to enhance usability
-                        in constrained environments.</para>
-
-                        <para>You can find the Matchbox source in the Yocto
-                        Project
-                        <ulink url='&YOCTO_GIT_URL;'>Source Repositories</ulink>.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Opkg</emphasis>
-                        Open PacKaGe management (opkg) is a lightweight
-                        package management system based on the itsy package
-                        (ipkg) management system.
-                        Opkg is written in C and resembles Advanced Package
-                        Tool (APT) and Debian Package (dpkg) in operation.
-                        </para>
-
-                        <para>Opkg is intended for use on embedded Linux
-                        devices and is used in this capacity in the
-                        <ulink url='http://www.openembedded.org/wiki/Main_Page'>OpenEmbedded</ulink>
-                        and
-                        <ulink url='https://openwrt.org/'>OpenWrt</ulink>
-                        projects, as well as the Yocto Project.
-                        <note>
-                            As best it can, opkg maintains backwards
-                            compatibility with ipkg and conforms to a subset
-                            of Debian's policy manual regarding control files.
-                        </note>
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='gs-archived-components'>
-            <title>Archived Components</title>
-
-            <para>
-                The Build Appliance is a virtual machine image that enables
-                you to build and boot a custom embedded Linux image with
-                the Yocto Project using a non-Linux development system.
-            </para>
-
-            <para>
-                Historically, the Build Appliance was the second of three
-                methods by which you could use the Yocto Project on a system
-                that was not native to Linux.
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Hob:</emphasis>
-                        Hob, which is now deprecated and is no longer available
-                        since the 2.1 release of the Yocto Project provided
-                        a rudimentary, GUI-based interface to the Yocto
-                        Project.
-                        Toaster has fully replaced Hob.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Build Appliance:</emphasis>
-                        Post Hob, the Build Appliance became available.
-                        It was never recommended that you use the Build
-                        Appliance as a day-to-day production development
-                        environment with the Yocto Project.
-                        Build Appliance was useful as a way to try out
-                        development in the Yocto Project environment.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>CROPS:</emphasis>
-                        The final and best solution available now for
-                        developing using the Yocto Project on a system
-                        not native to Linux is with
-                        <link linkend='gs-crops-overview'>CROPS</link>.
-                        </para></listitem>
-                </orderedlist>
-            </para>
-        </section>
-    </section>
-
-    <section id='gs-development-methods'>
-        <title>Development Methods</title>
-
-        <para>
-            The Yocto Project development environment usually involves a
-            <ulink url='&YOCTO_DOCS_REF_URL;#hardware-build-system-term'>Build Host</ulink>
-            and target hardware.
-            You use the Build Host to build images and develop applications,
-            while you use the target hardware to test deployed software.
-        </para>
-
-        <para>
-            This section provides an introduction to the choices or
-            development methods you have when setting up your Build Host.
-            Depending on the your particular workflow preference and the
-            type of operating system your Build Host runs, several choices
-            exist that allow you to use the Yocto Project.
-            <note>
-                For additional detail about the Yocto Project development
-                environment, see the
-                "<link linkend='overview-development-environment'>The Yocto Project Development Environment</link>"
-                chapter.
-            </note>
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis>Native Linux Host:</emphasis>
-                    By far the best option for a Build Host.
-                    A system running Linux as its native operating system
-                    allows you to develop software by directly using the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#bitbake-term'>BitBake</ulink>
-                    tool.
-                    You can accomplish all aspects of development from a
-                    familiar shell of a supported Linux distribution.</para>
-
-                    <para>For information on how to set up a Build Host on
-                    a system running Linux as its native operating system,
-                    see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#setting-up-a-native-linux-host'>Setting Up a Native Linux Host</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>CROss PlatformS (CROPS):</emphasis>
-                    Typically, you use
-                    <ulink url='https://github.com/crops/poky-container/'>CROPS</ulink>,
-                    which leverages
-                    <ulink url='https://www.docker.com/'>Docker Containers</ulink>,
-                    to set up a Build Host that is not running Linux (e.g.
-                    <trademark class='registered'>Microsoft</trademark>
-                    <trademark class='trademark'>Windows</trademark>
-                    or
-                    <trademark class='registered'>macOS</trademark>).
-                    <note>
-                        You can, however, use CROPS on a Linux-based system.
-                    </note>
-                    CROPS is an open source, cross-platform development
-                    framework that provides an easily managed, extensible
-                    environment for building binaries targeted for a variety
-                    of architectures on Windows, macOS, or Linux hosts.
-                    Once the Build Host is set up using CROPS, you can prepare
-                    a shell environment to mimic that of a shell being used
-                    on a system natively running Linux.</para>
-
-                    <para>For information on how to set up a Build Host with
-                    CROPS, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#setting-up-to-use-crops'>Setting Up to Use CROss PlatformS (CROPS)</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Windows Subsystem For Linux (WSLv2):</emphasis>
-                    You may use Windows Subsystem For Linux v2 to set up a build
-                    host using Windows 10.
-                    <note>
-                      The Yocto Project is not compatible with WSLv1, it is
-                      compatible but not officially supported nor validated
-                      with WSLv2, if you still decide to use WSL please upgrade
-                      to WSLv2.
-                    </note>
-                    The Windows Subsystem For Linux allows Windows 10 to run a real
-                    Linux kernel inside of a lightweight utility virtual
-                    machine (VM) using virtualization technology.</para>
-                    <para>For information on how to set up a Build Host with
-                    WSLv2, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#setting-up-to-use-wsl'>Setting Up to Use Windows Subsystem For Linux</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Toaster:</emphasis>
-                    Regardless of what your Build Host is running, you can
-                    use Toaster to develop software using the Yocto Project.
-                    Toaster is a web interface to the Yocto Project's
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>Open-Embedded build system</ulink>.
-                    The interface enables you to configure and run your
-                    builds.
-                    Information about builds is collected and stored in a
-                    database.
-                    You can use Toaster to configure and start builds on
-                    multiple remote build servers.</para>
-
-                    <para>For information about and how to use Toaster,
-                    see the
-                    <ulink url='&YOCTO_DOCS_TOAST_URL;'>Toaster User Manual</ulink>.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='reference-embedded-distribution'>
-        <title>Reference Embedded Distribution (Poky)</title>
-
-        <para>
-            "Poky", which is pronounced <emphasis>Pock</emphasis>-ee, is the
-            name of the Yocto Project's reference distribution or Reference OS
-            Kit.
-            Poky contains the
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded Build System</ulink>
-            (<ulink url='&YOCTO_DOCS_REF_URL;#bitbake-term'>BitBake</ulink> and
-            <ulink url='&YOCTO_DOCS_REF_URL;#oe-core'>OpenEmbedded-Core</ulink>)
-            as well as a set of
-            <ulink url='&YOCTO_DOCS_REF_URL;#metadata'>metadata</ulink> to get
-            you started building your own distro.
-            In other words, Poky is a base specification of the functionality
-            needed for a typical embedded system as well as the components
-            from the Yocto Project that allow you to build a distribution into
-            a usable binary image.
-        </para>
-
-        <para>
-            Poky is a combined repository of BitBake, OpenEmbedded-Core
-            (which is found in <filename>meta</filename>),
-            <filename>meta-poky</filename>,
-            <filename>meta-yocto-bsp</filename>, and documentation provided
-            all together and known to work well together.
-            You can view these items that make up the Poky repository in the
-            <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/'>Source Repositories</ulink>.
-            <note>
-                If you are interested in all the contents of the
-                <filename>poky</filename> Git repository, see the
-                "<ulink url='&YOCTO_DOCS_REF_URL;#structure-core'>Top-Level Core Components</ulink>"
-                section in the Yocto Project Reference Manual.
-            </note>
-        </para>
-
-        <para id='gs-poky-reference-distribution'>
-            The following figure illustrates what generally comprises Poky:
-            <imagedata fileref="figures/poky-reference-distribution.png" format="PNG" align='center' width="8in"/>
-            <itemizedlist>
-                <listitem><para>
-                    BitBake is a task executor and scheduler that is the heart of
-                    the OpenEmbedded build system.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>meta-poky</filename>, which is Poky-specific
-                    metadata.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>meta-yocto-bsp</filename>, which are Yocto
-                    Project-specific Board Support Packages (BSPs).
-                    </para></listitem>
-                <listitem><para>
-                    OpenEmbedded-Core (OE-Core) metadata, which includes
-                    shared configurations, global variable definitions,
-                    shared classes, packaging, and recipes.
-                    Classes define the encapsulation and inheritance of build
-                    logic.
-                    Recipes are the logical units of software and images
-                    to be built.
-                    </para></listitem>
-                <listitem><para>
-                    Documentation, which contains the Yocto Project source
-                    files used to make the set of user manuals.
-                    </para></listitem>
-            </itemizedlist>
-            <note>
-                While Poky is a "complete" distribution specification and is
-                tested and put through QA, you cannot use it as a product
-                "out of the box" in its current form.
-            </note>
-        </para>
-
-        <para>
-            To use the Yocto Project tools, you can use Git to clone (download)
-            the Poky repository then use your local copy of the reference
-            distribution to bootstrap your own distribution.
-            <note>
-                Poky does not contain binary files.
-                It is a working example of how to build your own custom Linux distribution
-                from source.
-            </note>
-        </para>
-
-        <para>
-            Poky has a regular, well established, six-month release cycle
-            under its own version.
-            Major releases occur at the same time major releases (point
-            releases) occur for the Yocto Project, which are typically in the
-            Spring and Fall.
-            For more information on the Yocto Project release schedule and
-            cadence, see the
-            "<ulink url='&YOCTO_DOCS_REF_URL;#ref-release-process'>Yocto Project Releases and the Stable Release Process</ulink>"
-            chapter in the Yocto Project Reference Manual.
-        </para>
-
-        <para>
-            Much has been said about Poky being a "default configuration."
-            A default configuration provides a starting image footprint.
-            You can use Poky out of the box to create an image ranging from a
-            shell-accessible minimal image all the way up to a Linux
-            Standard Base-compliant image that uses a GNOME Mobile and
-            Embedded (GMAE) based reference user interface called Sato.
-        </para>
-
-        <para>
-            One of the most powerful properties of Poky is that every aspect
-            of a build is controlled by the metadata.
-            You can use metadata to augment these base image types by
-            adding metadata
-            <link linkend='the-yocto-project-layer-model'>layers</link>
-            that extend functionality.
-            These layers can provide, for example, an additional software
-            stack for an image type, add a board support package (BSP) for
-            additional hardware, or even create a new image type.
-        </para>
-
-        <para>
-            Metadata is loosely grouped into configuration files or package
-            recipes.
-            A recipe is a collection of non-executable metadata used by
-            BitBake to set variables or define additional build-time tasks.
-            A recipe contains fields such as the recipe description, the recipe
-            version, the license of the package and the upstream source
-            repository.
-            A recipe might also indicate that the build process uses autotools,
-            make, distutils or any other build process, in which case the basic
-            functionality can be defined by the classes it inherits from
-            the OE-Core layer's class definitions in
-            <filename>./meta/classes</filename>.
-            Within a recipe you can also define additional tasks as well as
-            task prerequisites.
-            Recipe syntax through BitBake also supports both
-            <filename>_prepend</filename> and <filename>_append</filename>
-            operators as a method of extending task functionality.
-            These operators inject code into the beginning or end of a task.
-            For information on these BitBake operators, see the
-            "<ulink url='&YOCTO_DOCS_BB_URL;#appending-and-prepending-override-style-syntax'>Appending and Prepending (Override Style Syntax)</ulink>"
-            section in the BitBake User's Manual.
-        </para>
-    </section>
-
-    <section id='openembedded-build-system-workflow'>
-        <title>The OpenEmbedded Build System Workflow</title>
-
-        <para>
-            The
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>
-            uses a "workflow" to accomplish image and SDK generation.
-            The following figure overviews that workflow:
-            <imagedata fileref="figures/YP-flow-diagram.png"
-                format="PNG" align='center' width="8in"/>
-            Following is a brief summary of the "workflow":
-            <orderedlist>
-                <listitem><para>
-                    Developers specify architecture, policies, patches and
-                    configuration details.
-                    </para></listitem>
-                <listitem><para>
-                    The build system fetches and downloads the source code
-                    from the specified location.
-                    The build system supports standard methods such as tarballs
-                    or source code repositories systems such as Git.
-                    </para></listitem>
-                <listitem><para>
-                    Once source code is downloaded, the build system extracts
-                    the sources into a local work area where patches are
-                    applied and common steps for configuring and compiling
-                    the software are run.
-                    </para></listitem>
-                <listitem><para>
-                    The build system then installs the software into a
-                    temporary staging area where the binary package format you
-                    select (DEB, RPM, or IPK) is used to roll up the software.
-                    </para></listitem>
-                <listitem><para>
-                    Different QA and sanity checks run throughout entire
-                    build process.
-                    </para></listitem>
-                <listitem><para>
-                    After the binaries are created, the build system
-                    generates a binary package feed that is used to create
-                    the final root file image.
-                    </para></listitem>
-                <listitem><para>
-                    The build system generates the file system image and a
-                    customized Extensible SDK (eSDK) for application
-                    development in parallel.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-
-        <para>
-            For a very detailed look at this workflow, see the
-            "<link linkend='openembedded-build-system-build-concepts'>OpenEmbedded Build System Concepts</link>"
-            section.
-        </para>
-    </section>
-
-
-    <section id='some-basic-terms'>
-        <title>Some Basic Terms</title>
-
-        <para>
-            It helps to understand some basic fundamental terms when
-            learning the Yocto Project.
-            Although a list of terms exists in the
-            "<ulink url='&YOCTO_DOCS_REF_URL;#ref-terms'>Yocto Project Terms</ulink>"
-            section of the Yocto Project Reference Manual, this section
-            provides the definitions of some terms helpful for getting started:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis>Configuration Files:</emphasis>
-                    Files that hold global definitions of variables,
-                    user-defined variables, and hardware configuration
-                    information.
-                    These files tell the
-                    <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>Open-Embedded build system</ulink>
-                    what to build and what to put into the image to support a
-                    particular platform.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Extensible Software Development Kit (eSDK):</emphasis>
-                    A custom SDK for application developers.
-                    This eSDK allows developers to incorporate their library
-                    and programming changes back into the image to make
-                    their code available to other application developers.
-                    For information on the eSDK, see the
-                    <ulink url='&YOCTO_DOCS_SDK_URL;'>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</ulink>
-                    manual.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Layer:</emphasis>
-                    A collection of related recipes.
-                    Layers allow you to consolidate related metadata to
-                    customize your build.
-                    Layers also isolate information used when building
-                    for multiple architectures.
-                    Layers are hierarchical in their ability to override
-                    previous specifications.
-                    You can include any number of available layers from the
-                    Yocto Project and customize the build by adding your
-                    layers after them.
-                    You can search the Layer Index for layers used within
-                    Yocto Project.</para>
-
-                    <para>For more detailed information on layers, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and Creating Layers</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    For a discussion specifically on BSP Layers, see the
-                    "<ulink url='&YOCTO_DOCS_BSP_URL;#bsp-layers'>BSP Layers</ulink>"
-                    section in the Yocto Project Board Support Packages (BSP)
-                    Developer's Guide.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Metadata:</emphasis>
-                    A key element of the Yocto Project is the Metadata that
-                    is used to construct a Linux distribution and is contained
-                    in the files that the OpenEmbedded build system parses
-                    when building an image.
-                    In general, Metadata includes recipes, configuration
-                    files, and other information that refers to the build
-                    instructions themselves, as well as the data used to
-                    control what things get built and the effects of the
-                    build.
-                    Metadata also includes commands and data used to
-                    indicate what versions of software are used, from
-                    where they are obtained, and changes or additions to the
-                    software itself (patches or auxiliary files) that
-                    are used to fix bugs or customize the software for use
-                    in a particular situation.
-                    OpenEmbedded-Core is an important set of validated
-                    metadata.
-                    </para></listitem>
-                <listitem><para id='gs-term-openembedded-build-system'>
-                    <emphasis>OpenEmbedded Build System:</emphasis>
-                    The terms "BitBake" and "build system" are sometimes
-                    used for the OpenEmbedded Build System.</para>
-
-                    <para>BitBake is a task scheduler and execution engine
-                    that parses instructions (i.e. recipes) and configuration
-                    data.
-                    After a parsing phase, BitBake creates a dependency tree
-                    to order the compilation, schedules the compilation of
-                    the included code, and finally executes the building
-                    of the specified custom Linux image (distribution).
-                    BitBake is similar to the <filename>make</filename>
-                    tool.</para>
-
-                    <para>During a build process, the build system tracks
-                    dependencies and performs a native or cross-compilation
-                    of the package.
-                    As a first step in a cross-build setup, the framework
-                    attempts to create a cross-compiler toolchain
-                    (i.e. Extensible SDK) suited for the target platform.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>OpenEmbedded-Core (OE-Core):</emphasis>
-                    OE-Core is metadata comprised of foundation recipes,
-                    classes, and associated files that are meant to be
-                    common among many different OpenEmbedded-derived systems,
-                    including the Yocto Project.
-                    OE-Core is a curated subset of an original repository
-                    developed by the OpenEmbedded community that has been
-                    pared down into a smaller, core set of continuously
-                    validated recipes.
-                    The result is a tightly controlled and quality-assured
-                    core set of recipes.</para>
-
-                    <para>You can see the Metadata in the
-                    <filename>meta</filename> directory of the Yocto Project
-                    <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi'>Source Repositories</ulink>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Packages:</emphasis>
-                    In the context of the Yocto Project, this term refers to a
-                    recipe's packaged output produced by BitBake (i.e. a
-                    "baked recipe").
-                    A package is generally the compiled binaries produced from the
-                    recipe's sources.
-                    You "bake" something by running it through BitBake.</para>
-
-                    <para>It is worth noting that the term "package" can,
-                    in general, have subtle meanings.
-                    For example, the packages referred to in the
-                    "<ulink url='&YOCTO_DOCS_REF_URL;#required-packages-for-the-build-host'>Required Packages for the Build Host</ulink>"
-                    section in the Yocto Project Reference Manual are compiled
-                    binaries that, when installed, add functionality to your
-                    Linux distribution.</para>
-
-                    <para>Another point worth noting is that historically within
-                    the Yocto Project, recipes were referred to as packages - thus,
-                    the existence of several BitBake variables that are seemingly
-                    mis-named,
-                    (e.g. <ulink url='&YOCTO_DOCS_REF_URL;#var-PR'><filename>PR</filename></ulink>,
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>,
-                    and
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-PE'><filename>PE</filename></ulink>).
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Poky:</emphasis>
-                    Poky is a reference embedded distribution and a reference
-                    test configuration.
-                    Poky provides the following:
-                    <itemizedlist>
-                        <listitem><para>
-                            A base-level functional distro used to illustrate
-                            how to customize a distribution.
-                            </para></listitem>
-                        <listitem><para>
-                            A means by which to test the Yocto Project
-                            components (i.e. Poky is used to validate
-                            the Yocto Project).
-                            </para></listitem>
-                        <listitem><para>
-                            A vehicle through which you can download
-                            the Yocto Project.
-                            </para></listitem>
-                    </itemizedlist>
-                    Poky is not a product level distro.
-                    Rather, it is a good starting point for customization.
-                    <note>
-                        Poky is an integration layer on top of OE-Core.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Recipe:</emphasis>
-                    The most common form of metadata.
-                    A recipe contains a list of settings and tasks
-                    (i.e. instructions) for building packages that are then
-                    used to build the binary image.
-                    A recipe describes where you get source code and which
-                    patches to apply.
-                    Recipes describe dependencies for libraries or for other
-                    recipes as well as configuration and compilation options.
-                    Related recipes are consolidated into a layer.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/overview-manual/overview-manual.rst b/poky/documentation/overview-manual/overview-manual.rst
index 80ce9aa..f20b20e 100644
--- a/poky/documentation/overview-manual/overview-manual.rst
+++ b/poky/documentation/overview-manual/overview-manual.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ==========================================
 Yocto Project Overview and Concepts Manual
diff --git a/poky/documentation/overview-manual/overview-manual.xml b/poky/documentation/overview-manual/overview-manual.xml
deleted file mode 100755
index 8021a2e..0000000
--- a/poky/documentation/overview-manual/overview-manual.xml
+++ /dev/null
@@ -1,130 +0,0 @@
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<book id='overview-manual' lang='en'
-      xmlns:xi="http://www.w3.org/2003/XInclude"
-      xmlns="http://docbook.org/ns/docbook"
-      >
-    <bookinfo>
-
-        <mediaobject>
-            <imageobject>
-                <imagedata fileref='figures/overview-manual-title.png'
-                    format='SVG'
-                    align='left' scalefit='1' width='100%'/>
-            </imageobject>
-        </mediaobject>
-
-        <title>
-            Yocto Project Overview and Concepts Manual
-        </title>
-
-        <authorgroup>
-            <author>
-                <affiliation>
-                    <orgname>&ORGNAME;</orgname>
-                </affiliation>
-                <email>&ORGEMAIL;</email>
-            </author>
-        </authorgroup>
-
-        <revhistory>
-            <revision>
-                <revnumber>2.5</revnumber>
-                <date>May 2018</date>
-                <revremark>The initial document released with the Yocto Project 2.5 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.6</revnumber>
-                <date>November 2018</date>
-                <revremark>Released with the Yocto Project 2.6 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.7</revnumber>
-                <date>May 2019</date>
-                <revremark>Released with the Yocto Project 2.7 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>3.0</revnumber>
-                <date>October 2019</date>
-                <revremark>Released with the Yocto Project 3.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>3.1</revnumber>
-                <date>&REL_MONTH_YEAR;</date>
-                <revremark>Released with the Yocto Project 3.1 Release.</revremark>
-            </revision>
-        </revhistory>
-
-    <copyright>
-     <year>&COPYRIGHT_YEAR;</year>
-      <holder>Linux Foundation</holder>
-    </copyright>
-
-    <legalnotice>
-      <para>
-          Permission is granted to copy, distribute and/or modify this document under
-          the terms of the <ulink type="http" url="http://creativecommons.org/licenses/by-sa/2.0/uk/">
-          Creative Commons Attribution-Share Alike 2.0 UK: England &amp; Wales</ulink> as published by
-          Creative Commons.
-      </para>
-           <note><title>Manual Notes</title>
-               <itemizedlist>
-                   <listitem><para>
-                       This version of the
-                       <emphasis>Yocto Project Overview and Concepts Manual</emphasis>
-                       is for the &YOCTO_DOC_VERSION; release of the
-                       Yocto Project.
-                       To be sure you have the latest version of the manual
-                       for this release, go to the
-                       <ulink url='&YOCTO_DOCS_URL;'>Yocto Project documentation page</ulink>
-                       and select the manual from that site.
-                       Manuals from the site are more up-to-date than manuals
-                       derived from the Yocto Project released TAR files.
-                       </para></listitem>
-                   <listitem><para>
-                       If you located this manual through a web search, the
-                       version of the manual might not be the one you want
-                       (e.g. the search might have returned a manual much
-                       older than the Yocto Project version with which you
-                       are working).
-                       You can see all Yocto Project major releases by
-                       visiting the
-                       <ulink url='&YOCTO_WIKI_URL;/wiki/Releases'>Releases</ulink>
-                       page.
-                       If you need a version of this manual for a different
-                       Yocto Project release, visit the
-                       <ulink url='&YOCTO_DOCS_URL;'>Yocto Project documentation page</ulink>
-                       and select the manual set by using the
-                       "ACTIVE RELEASES DOCUMENTATION" or "DOCUMENTS ARCHIVE"
-                       pull-down menus.
-                       </para></listitem>
-                   <listitem>
-                       <para>
-                       To report any inaccuracies or problems with this
-                       (or any other Yocto Project) manual, send an email to
-                       the Yocto Project documentation mailing list at
-                       <filename>docs@lists.yoctoproject.org</filename> or
-                       log into the freenode <filename>#yocto</filename> channel.
-                       </para>
-                   </listitem>
-               </itemizedlist>
-           </note>
-    </legalnotice>
-
-    </bookinfo>
-
-    <xi:include href="overview-manual-intro.xml"/>
-
-    <xi:include href="overview-manual-yp-intro.xml"/>
-
-    <xi:include href="overview-manual-development-environment.xml"/>
-
-    <xi:include href="overview-manual-concepts.xml" />
-
-</book>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/poky.ent b/poky/documentation/poky.ent
deleted file mode 100755
index aec8d45..0000000
--- a/poky/documentation/poky.ent
+++ /dev/null
@@ -1,89 +0,0 @@
-<!ENTITY DISTRO "3.1">
-<!ENTITY DISTRO_COMPRESSED "31">
-<!ENTITY DISTRO_NAME_NO_CAP "dunfell">
-<!ENTITY DISTRO_NAME "Dunfell">
-<!ENTITY DISTRO_NAME_NO_CAP_MINUS_ONE "zeus">
-<!ENTITY DISTRO_NAME_MINUS_ONE "Zeus">
-<!ENTITY YOCTO_DOC_VERSION "3.1">
-<!ENTITY YOCTO_DOC_VERSION_MINUS_ONE "3.0.2">
-<!ENTITY DISTRO_REL_TAG "yocto-3.1">
-<!ENTITY METAINTELVERSION "12.0">
-<!ENTITY REL_MONTH_YEAR "April 2020">
-<!ENTITY META_INTEL_REL_TAG "&METAINTELVERSION;-&DISTRO_NAME_NO_CAP;-&YOCTO_DOC_VERSION;">
-<!ENTITY POKYVERSION "23.0.0">
-<!ENTITY POKYVERSION_COMPRESSED "2300">
-<!ENTITY YOCTO_POKY "poky-&DISTRO_NAME_NO_CAP;-&POKYVERSION;">
-<!ENTITY COPYRIGHT_YEAR "2010-2020">
-<!ENTITY ORGNAME "The Yocto Project">
-<!ENTITY ORGEMAIL "docs@lists.yoctoproject.org">
-<!ENTITY YOCTO_DL_URL "http://downloads.yoctoproject.org">
-<!ENTITY YOCTO_HOME_URL "http://www.yoctoproject.org">
-<!ENTITY YOCTO_LISTS_URL "http://lists.yoctoproject.org">
-<!ENTITY YOCTO_BUGZILLA_URL "http://bugzilla.yoctoproject.org">
-<!ENTITY YOCTO_WIKI_URL "https://wiki.yoctoproject.org">
-<!ENTITY YOCTO_AB_URL "http://autobuilder.yoctoproject.org">
-<!ENTITY YOCTO_GIT_URL "http://git.yoctoproject.org">
-<!ENTITY YOCTO_ADTREPO_URL "http://adtrepo.yoctoproject.org">
-<!ENTITY OE_HOME_URL "http://www.openembedded.org">
-<!ENTITY OE_LISTS_URL "http://lists.openembedded.org/mailman">
-<!ENTITY OE_DOCS_URL "http://docs.openembedded.org">
-<!ENTITY OH_HOME_URL "http://o-hand.com">
-<!ENTITY BITBAKE_HOME_URL "http://developer.berlios.de/projects/bitbake/">
-<!ENTITY YOCTO_DOCS_URL "&YOCTO_HOME_URL;/docs">
-<!ENTITY YOCTO_SOURCES_URL "&YOCTO_HOME_URL;/sources/">
-<!ENTITY YOCTO_AB_PORT_URL "https://autobuilder.yocto.io/">
-<!ENTITY YOCTO_AB_NIGHTLY_URL "&YOCTO_AB_PORT_URL;/pub/nightly/">
-<!ENTITY YOCTO_POKY_URL "&YOCTO_DL_URL;/releases/poky/">
-<!ENTITY YOCTO_RELEASE_DL_URL "&YOCTO_DL_URL;/releases/yocto/yocto-&DISTRO;">
-<!ENTITY YOCTO_TOOLCHAIN_DL_URL "&YOCTO_RELEASE_DL_URL;/toolchain/">
-<!ENTITY YOCTO_ADTINSTALLER_DL_URL "&YOCTO_RELEASE_DL_URL;/adt-installer">
-<!ENTITY YOCTO_POKY_DL_URL "&YOCTO_RELEASE_DL_URL;/&YOCTO_POKY;.tar.bz2">
-<!ENTITY YOCTO_MACHINES_DL_URL "&YOCTO_RELEASE_DL_URL;/machines">
-<!ENTITY YOCTO_QEMU_DL_URL "&YOCTO_MACHINES_DL_URL;/qemu">
-<!ENTITY YOCTO_PYTHON-i686_DL_URL "&YOCTO_DL_URL;/releases/miscsupport/python-nativesdk-standalone-i686.tar.bz2">
-<!ENTITY YOCTO_PYTHON-x86_64_DL_URL "&YOCTO_DL_URL;/releases/miscsupport/python-nativesdk-standalone-x86_64.tar.bz2">
-<!ENTITY YOCTO_DOCS_QS_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/yocto-project-qs/yocto-project-qs.html">
-<!ENTITY YOCTO_DOCS_ADT_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/adt-manual/adt-manual.html">
-<!ENTITY YOCTO_DOCS_REF_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/ref-manual/ref-manual.html">
-<!ENTITY YOCTO_DOCS_BSP_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/bsp-guide/bsp-guide.html">
-<!ENTITY YOCTO_DOCS_DEV_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/dev-manual/dev-manual.html">
-<!ENTITY YOCTO_DOCS_KERNEL_DEV_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/kernel-dev/kernel-dev.html">
-<!ENTITY YOCTO_DOCS_PROF_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/profile-manual/profile-manual.html">
-<!ENTITY YOCTO_DOCS_MM_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/mega-manual/mega-manual.html">
-<!ENTITY YOCTO_DOCS_BB_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/bitbake-user-manual/bitbake-user-manual.html">
-<!ENTITY YOCTO_DOCS_TOAST_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/toaster-manual/toaster-manual.html">
-<!ENTITY YOCTO_DOCS_SDK_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/sdk-manual/sdk-manual.html">
-<!ENTITY YOCTO_DOCS_OM_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/overview-manual/overview-manual.html">
-<!ENTITY YOCTO_DOCS_BRIEF_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/brief-yoctoprojectqs/brief-yoctoprojectqs.html">
-<!ENTITY YOCTO_ADTPATH_DIR "/opt/poky/&DISTRO;">
-<!ENTITY YOCTO_POKY_TARBALL "&YOCTO_POKY;.tar.bz2">
-<!ENTITY OE_INIT_PATH "&YOCTO_POKY;/oe-init-build-env">
-<!ENTITY OE_INIT_FILE "oe-init-build-env">
-<!ENTITY UBUNTU_HOST_PACKAGES_ESSENTIAL "gawk wget git-core diffstat unzip texinfo gcc-multilib \
-     build-essential chrpath socat cpio python3 python3-pip python3-pexpect \
-     xz-utils debianutils iputils-ping python3-git python3-jinja2 libegl1-mesa libsdl1.2-dev \
-     pylint3 xterm python3-subunit mesa-common-dev">
-<!ENTITY FEDORA_HOST_PACKAGES_ESSENTIAL "gawk make wget tar bzip2 gzip python3 unzip perl patch \
-     diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath \
-     ccache perl-Data-Dumper perl-Text-ParseWords perl-Thread-Queue perl-bignum socat \
-     python3-pexpect findutils which file cpio python python3-pip xz python3-GitPython \
-     python3-jinja2 SDL-devel xterm rpcgen mesa-libGL-devel">
-<!ENTITY OPENSUSE_HOST_PACKAGES_ESSENTIAL "python gcc gcc-c++ git chrpath make wget python-xml \
-     diffstat makeinfo python-curses patch socat python3 python3-curses tar python3-pip \
-     python3-pexpect xz which python3-Jinja2 Mesa-libEGL1 libSDL-devel xterm rpcgen Mesa-dri-devel
-     $ sudo pip3 install GitPython">
-<!ENTITY CENTOS7_HOST_PACKAGES_ESSENTIAL "-y epel-release
-     $ sudo yum makecache
-     $ sudo yum install gawk make wget tar bzip2 gzip python3 unzip perl patch \
-     diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath socat \
-     perl-Data-Dumper perl-Text-ParseWords perl-Thread-Queue python36-pip xz \
-     which SDL-devel xterm mesa-libGL-devel
-     $ sudo pip3 install GitPython jinja2">
-<!ENTITY CENTOS8_HOST_PACKAGES_ESSENTIAL "-y epel-release
-     $ sudo dnf config-manager --set-enabled PowerTools
-     $ sudo dnf makecache
-     $ sudo dnf install gawk make wget tar bzip2 gzip python3 unzip perl patch \
-     diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath ccache \
-     socat perl-Data-Dumper perl-Text-ParseWords perl-Thread-Queue python3-pip \
-     python3-GitPython python3-jinja2 python3-pexpect xz which SDL-devel xterm \
-     rpcgen mesa-libGL-devel">
diff --git a/poky/documentation/profile-manual/history.rst b/poky/documentation/profile-manual/history.rst
index 3ffb7ea..761b506 100644
--- a/poky/documentation/profile-manual/history.rst
+++ b/poky/documentation/profile-manual/history.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ***********************
 Manual Revision History
diff --git a/poky/documentation/profile-manual/profile-manual-arch.rst b/poky/documentation/profile-manual/profile-manual-arch.rst
index 9e1e400..73cd0c2 100644
--- a/poky/documentation/profile-manual/profile-manual-arch.rst
+++ b/poky/documentation/profile-manual/profile-manual-arch.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *************************************************************
 Overall Architecture of the Linux Tracing and Profiling Tools
diff --git a/poky/documentation/profile-manual/profile-manual-arch.xml b/poky/documentation/profile-manual/profile-manual-arch.xml
deleted file mode 100644
index 8eb7bbf..0000000
--- a/poky/documentation/profile-manual/profile-manual-arch.xml
+++ /dev/null
@@ -1,46 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='profile-manual-arch'>
-
-<title>Overall Architecture of the Linux Tracing and Profiling Tools</title>
-
-<section id='architecture-of-the-tracing-and-profiling-tools'>
-    <title>Architecture of the Tracing and Profiling Tools</title>
-
-    <para>
-        It may seem surprising to see a section covering an 'overall architecture'
-        for what seems to be a random collection of tracing tools that together
-        make up the Linux tracing and profiling space.
-        The fact is, however, that in recent years this seemingly disparate
-        set of tools has started to converge on a 'core' set of underlying
-        mechanisms:
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>static tracepoints</listitem>
-            <listitem>dynamic tracepoints
-                 <itemizedlist>
-                     <listitem>kprobes</listitem>
-                     <listitem>uprobes</listitem>
-                 </itemizedlist>
-            </listitem>
-            <listitem>the perf_events subsystem</listitem>
-            <listitem>debugfs</listitem>
-        </itemizedlist>
-    </para>
-
-    <informalexample>
-        <emphasis>Tying it Together:</emphasis> Rather than enumerating here how each tool makes use of
-        these common mechanisms, textboxes like this will make note of the
-        specific usages in each tool as they come up in the course
-        of the text.
-    </informalexample>
-</section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/profile-manual/profile-manual-customization.xsl b/poky/documentation/profile-manual/profile-manual-customization.xsl
deleted file mode 100644
index d995e0b..0000000
--- a/poky/documentation/profile-manual/profile-manual-customization.xsl
+++ /dev/null
@@ -1,29 +0,0 @@
-<?xml version='1.0'?>
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
-
-  <xsl:import href="http://downloads.yoctoproject.org/mirror/docbook-mirror/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-<!--
-
-  <xsl:import href="../template/1.76.1/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-  <xsl:import href="http://docbook.sourceforge.net/release/xsl/1.76.1/xhtml/docbook.xsl" />
-
--->
-
-  <xsl:include href="../template/permalinks.xsl"/>
-  <xsl:include href="../template/section.title.xsl"/>
-  <xsl:include href="../template/component.title.xsl"/>
-  <xsl:include href="../template/division.title.xsl"/>
-  <xsl:include href="../template/formal.object.heading.xsl"/>
-
-  <xsl:param name="html.stylesheet" select="'profile-manual-style.css'" />
-  <xsl:param name="chapter.autolabel" select="1" />
-  <xsl:param name="appendix.autolabel" select="A" />
-  <xsl:param name="section.autolabel" select="1" />
-  <xsl:param name="section.label.includes.component.label" select="1" />
-  <xsl:param name="generate.id.attributes" select="1" />
-
-</xsl:stylesheet>
diff --git a/poky/documentation/profile-manual/profile-manual-examples.rst b/poky/documentation/profile-manual/profile-manual-examples.rst
index 32ccd37..97a9e9e 100644
--- a/poky/documentation/profile-manual/profile-manual-examples.rst
+++ b/poky/documentation/profile-manual/profile-manual-examples.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *******************
 Real-World Examples
diff --git a/poky/documentation/profile-manual/profile-manual-examples.xml b/poky/documentation/profile-manual/profile-manual-examples.xml
deleted file mode 100644
index 91e06fc..0000000
--- a/poky/documentation/profile-manual/profile-manual-examples.xml
+++ /dev/null
@@ -1,40 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='profile-manual-examples'>
-
-<title>Real-World Examples</title>
-
-<para>
-    This chapter contains real-world examples.
-</para>
-
-<section id='slow-write-speed-on-live-images'>
-    <title>Slow Write Speed on Live Images</title>
-
-    <para>
-        In one of our previous releases (denzil), users noticed that booting
-        off of a live image and writing to disk was noticeably slower.
-        This included the boot itself, especially the first one, since first
-        boots tend to do a significant amount of writing due to certain
-        post-install scripts.
-    </para>
-
-    <para>
-        The problem (and solution) was discovered by using the Yocto tracing
-        tools, in this case 'perf stat', 'perf script', 'perf record'
-        and 'perf report'.
-    </para>
-
-    <para>
-        See all the unvarnished details of how this bug was diagnosed and
-        solved here: Yocto Bug #3049
-    </para>
-</section>
-
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/profile-manual/profile-manual-intro.rst b/poky/documentation/profile-manual/profile-manual-intro.rst
index 994b1c5..0d435e0 100644
--- a/poky/documentation/profile-manual/profile-manual-intro.rst
+++ b/poky/documentation/profile-manual/profile-manual-intro.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ******************************************
 Yocto Project Profiling and Tracing Manual
diff --git a/poky/documentation/profile-manual/profile-manual-intro.xml b/poky/documentation/profile-manual/profile-manual-intro.xml
deleted file mode 100644
index a2d2f80..0000000
--- a/poky/documentation/profile-manual/profile-manual-intro.xml
+++ /dev/null
@@ -1,107 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='profile-manual-intro'>
-
-<title>Yocto Project Profiling and Tracing Manual</title>
-    <section id='profile-intro'>
-        <title>Introduction</title>
-
-        <para>
-            Yocto bundles a number of tracing and profiling tools - this 'HOWTO'
-            describes their basic usage and shows by example how to make use
-            of them to examine application and system behavior.
-        </para>
-
-        <para>
-            The tools presented are for the most part completely open-ended and
-            have quite good and/or extensive documentation of their own which
-            can be used to solve just about any problem you might come across
-            in Linux.
-            Each section that describes a particular tool has links to that
-            tool's documentation and website.
-        </para>
-
-        <para>
-            The purpose of this 'HOWTO' is to present a set of common and
-            generally useful tracing and profiling idioms along with their
-            application (as appropriate) to each tool, in the context of a
-            general-purpose 'drill-down' methodology that can be applied
-            to solving a large number (90%?) of problems.
-            For help with more advanced usages and problems, please see
-            the documentation and/or websites listed for each tool.
-        </para>
-
-        <para>
-            The final section of this 'HOWTO' is a collection of real-world
-            examples which we'll be continually adding to as we solve more
-            problems using the tools - feel free to add your own examples
-            to the list!
-        </para>
-    </section>
-
-    <section id='profile-manual-general-setup'>
-        <title>General Setup</title>
-
-        <para>
-            Most of the tools are available only in 'sdk' images or in images
-            built after adding 'tools-profile' to your local.conf.
-            So, in order to be able to access all of the tools described here,
-            please first build and boot an 'sdk' image e.g.
-            <literallayout class='monospaced'>
-     $ bitbake core-image-sato-sdk
-            </literallayout>
-            or alternatively by adding 'tools-profile' to the
-            EXTRA_IMAGE_FEATURES line in your local.conf:
-            <literallayout class='monospaced'>
-      EXTRA_IMAGE_FEATURES = "debug-tweaks tools-profile"
-            </literallayout>
-            If you use the 'tools-profile' method, you don't need to build an
-            sdk image - the tracing and profiling tools will be included in
-            non-sdk images as well e.g.:
-            <literallayout class='monospaced'>
-     $ bitbake core-image-sato
-            </literallayout>
-            <note><para>
-                By default, the Yocto build system strips symbols from the
-                binaries it packages, which makes it difficult to use some
-                of the tools.
-                </para><para>You can prevent that by setting the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-INHIBIT_PACKAGE_STRIP'><filename>INHIBIT_PACKAGE_STRIP</filename></ulink>
-                variable to "1" in your
-                <filename>local.conf</filename> when you build the image:
-                </para>
-            </note>
-            <literallayout class='monospaced'>
-     INHIBIT_PACKAGE_STRIP = "1"
-            </literallayout>
-            The above setting will noticeably increase the size of your image.
-        </para>
-
-        <para>
-            If you've already built a stripped image, you can generate
-            debug packages (xxx-dbg) which you can manually install as
-            needed.
-        </para>
-
-        <para>
-            To generate debug info for packages, you can add dbg-pkgs to
-            EXTRA_IMAGE_FEATURES in local.conf. For example:
-            <literallayout class='monospaced'>
-     EXTRA_IMAGE_FEATURES = "debug-tweaks tools-profile dbg-pkgs"
-            </literallayout>
-            Additionally, in order to generate the right type of
-            debuginfo, we also need to set
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_DEBUG_SPLIT_STYLE'><filename>PACKAGE_DEBUG_SPLIT_STYLE</filename></ulink>
-            in the <filename>local.conf</filename> file:
-            <literallayout class='monospaced'>
-     PACKAGE_DEBUG_SPLIT_STYLE = 'debug-file-directory'
-            </literallayout>
-        </para>
-    </section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/profile-manual/profile-manual-style.css b/poky/documentation/profile-manual/profile-manual-style.css
deleted file mode 100644
index 8502c11..0000000
--- a/poky/documentation/profile-manual/profile-manual-style.css
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diff --git a/poky/documentation/profile-manual/profile-manual-usage.rst b/poky/documentation/profile-manual/profile-manual-usage.rst
index 32b04f6..d3c020a 100644
--- a/poky/documentation/profile-manual/profile-manual-usage.rst
+++ b/poky/documentation/profile-manual/profile-manual-usage.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 .. highlight:: shell
 
 ***************************************************************
diff --git a/poky/documentation/profile-manual/profile-manual-usage.xml b/poky/documentation/profile-manual/profile-manual-usage.xml
deleted file mode 100644
index 3a7148c..0000000
--- a/poky/documentation/profile-manual/profile-manual-usage.xml
+++ /dev/null
@@ -1,2986 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='profile-manual-usage'>
-
-<title>Basic Usage (with examples) for each of the Yocto Tracing Tools</title>
-
-<para>
-    This chapter presents basic usage examples for each of the tracing
-    tools.
-</para>
-
-<section id='profile-manual-perf'>
-    <title>perf</title>
-
-    <para>
-        The 'perf' tool is the profiling and tracing tool that comes
-        bundled with the Linux kernel.
-    </para>
-
-    <para>
-        Don't let the fact that it's part of the kernel fool you into thinking
-        that it's only for tracing and profiling the kernel - you can indeed
-        use it to trace and profile just the kernel, but you can also use it
-        to profile specific applications separately (with or without kernel
-        context), and you can also use it to trace and profile the kernel
-        and all applications on the system simultaneously to gain a system-wide
-        view of what's going on.
-    </para>
-
-    <para>
-        In many ways, perf aims to be a superset of all the tracing and profiling
-        tools available in Linux today, including all the other tools covered
-        in this HOWTO. The past couple of years have seen perf subsume a lot
-        of the functionality of those other tools and, at the same time, those
-        other tools have removed large portions of their previous functionality
-        and replaced it with calls to the equivalent functionality now
-        implemented by the perf subsystem. Extrapolation suggests that at
-        some point those other tools will simply become completely redundant
-        and go away; until then, we'll cover those other tools in these pages
-        and in many cases show how the same things can be accomplished in
-        perf and the other tools when it seems useful to do so.
-    </para>
-
-    <para>
-        The coverage below details some of the most common ways you'll likely
-        want to apply the tool; full documentation can be found either within
-        the tool itself or in the man pages at
-        <ulink url='http://linux.die.net/man/1/perf'>perf(1)</ulink>.
-    </para>
-
-    <section id='perf-setup'>
-        <title>Setup</title>
-
-        <para>
-            For this section, we'll assume you've already performed the basic
-            setup outlined in the General Setup section.
-        </para>
-
-        <para>
-            In particular, you'll get the most mileage out of perf if you
-            profile an image built with the following in your
-            <filename>local.conf</filename> file:
-            <literallayout class='monospaced'>
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-INHIBIT_PACKAGE_STRIP'>INHIBIT_PACKAGE_STRIP</ulink> = "1"
-            </literallayout>
-        </para>
-
-        <para>
-            perf runs on the target system for the most part. You can archive
-            profile data and copy it to the host for analysis, but for the
-            rest of this document we assume you've ssh'ed to the host and
-            will be running the perf commands on the target.
-        </para>
-    </section>
-
-    <section id='perf-basic-usage'>
-        <title>Basic Usage</title>
-
-        <para>
-            The perf tool is pretty much self-documenting. To remind yourself
-            of the available commands, simply type 'perf', which will show you
-            basic usage along with the available perf subcommands:
-            <literallayout class='monospaced'>
-     root@crownbay:~# perf
-
-     usage: perf [--version] [--help] COMMAND [ARGS]
-
-     The most commonly used perf commands are:
-       annotate        Read perf.data (created by perf record) and display annotated code
-       archive         Create archive with object files with build-ids found in perf.data file
-       bench           General framework for benchmark suites
-       buildid-cache   Manage build-id cache.
-       buildid-list    List the buildids in a perf.data file
-       diff            Read two perf.data files and display the differential profile
-       evlist          List the event names in a perf.data file
-       inject          Filter to augment the events stream with additional information
-       kmem            Tool to trace/measure kernel memory(slab) properties
-       kvm             Tool to trace/measure kvm guest os
-       list            List all symbolic event types
-       lock            Analyze lock events
-       probe           Define new dynamic tracepoints
-       record          Run a command and record its profile into perf.data
-       report          Read perf.data (created by perf record) and display the profile
-       sched           Tool to trace/measure scheduler properties (latencies)
-       script          Read perf.data (created by perf record) and display trace output
-       stat            Run a command and gather performance counter statistics
-       test            Runs sanity tests.
-       timechart       Tool to visualize total system behavior during a workload
-       top             System profiling tool.
-
-     See 'perf help COMMAND' for more information on a specific command.
-            </literallayout>
-        </para>
-
-        <section id='using-perf-to-do-basic-profiling'>
-            <title>Using perf to do Basic Profiling</title>
-
-            <para>
-                As a simple test case, we'll profile the 'wget' of a fairly large
-                file, which is a minimally interesting case because it has both
-                file and network I/O aspects, and at least in the case of standard
-                Yocto images, it's implemented as part of busybox, so the methods
-                we use to analyze it can be used in a very similar way to the whole
-                host of supported busybox applets in Yocto.
-                <literallayout class='monospaced'>
-     root@crownbay:~# rm linux-2.6.19.2.tar.bz2; \
-     wget <ulink url='http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2'>http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2</ulink>
-                </literallayout>
-                The quickest and easiest way to get some basic overall data about
-                what's going on for a particular workload is to profile it using
-                'perf stat'. 'perf stat' basically profiles using a few default
-                counters and displays the summed counts at the end of the run:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf stat wget <ulink url='http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2'>http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2</ulink>
-     Connecting to downloads.yoctoproject.org (140.211.169.59:80)
-     linux-2.6.19.2.tar.b 100% |***************************************************| 41727k  0:00:00 ETA
-
-     Performance counter stats for 'wget <ulink url='http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2'>http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2</ulink>':
-
-           4597.223902 task-clock                #    0.077 CPUs utilized
-                 23568 context-switches          #    0.005 M/sec
-                    68 CPU-migrations            #    0.015 K/sec
-                   241 page-faults               #    0.052 K/sec
-            3045817293 cycles                    #    0.663 GHz
-       &lt;not supported&gt; stalled-cycles-frontend
-       &lt;not supported&gt; stalled-cycles-backend
-             858909167 instructions              #    0.28  insns per cycle
-             165441165 branches                  #   35.987 M/sec
-              19550329 branch-misses             #   11.82% of all branches
-
-          59.836627620 seconds time elapsed
-                </literallayout>
-                Many times such a simple-minded test doesn't yield much of
-                interest, but sometimes it does (see Real-world Yocto bug
-                (slow loop-mounted write speed)).
-            </para>
-
-            <para>
-                Also, note that 'perf stat' isn't restricted to a fixed set of
-                counters - basically any event listed in the output of 'perf list'
-                can be tallied by 'perf stat'. For example, suppose we wanted to
-                see a summary of all the events related to kernel memory
-                allocation/freeing along with cache hits and misses:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf stat -e kmem:* -e cache-references -e cache-misses wget <ulink url='http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2'>http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2</ulink>
-     Connecting to downloads.yoctoproject.org (140.211.169.59:80)
-     linux-2.6.19.2.tar.b 100% |***************************************************| 41727k  0:00:00 ETA
-
-     Performance counter stats for 'wget <ulink url='http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2'>http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2</ulink>':
-
-                  5566 kmem:kmalloc
-                125517 kmem:kmem_cache_alloc
-                     0 kmem:kmalloc_node
-                     0 kmem:kmem_cache_alloc_node
-                 34401 kmem:kfree
-                 69920 kmem:kmem_cache_free
-                   133 kmem:mm_page_free
-                    41 kmem:mm_page_free_batched
-                 11502 kmem:mm_page_alloc
-                 11375 kmem:mm_page_alloc_zone_locked
-                     0 kmem:mm_page_pcpu_drain
-                     0 kmem:mm_page_alloc_extfrag
-              66848602 cache-references
-               2917740 cache-misses              #    4.365 % of all cache refs
-
-          44.831023415 seconds time elapsed
-                </literallayout>
-                So 'perf stat' gives us a nice easy way to get a quick overview of
-                what might be happening for a set of events, but normally we'd
-                need a little more detail in order to understand what's going on
-                in a way that we can act on in a useful way.
-            </para>
-
-            <para>
-                To dive down into a next level of detail, we can use 'perf
-                record'/'perf report' which will collect profiling data and
-                present it to use using an interactive text-based UI (or
-                simply as text if we specify --stdio to 'perf report').
-            </para>
-
-            <para>
-                As our first attempt at profiling this workload, we'll simply
-                run 'perf record', handing it the workload we want to profile
-                (everything after 'perf record' and any perf options we hand
-                it - here none - will be executed in a new shell). perf collects
-                samples until the process exits and records them in a file named
-                'perf.data' in the current working directory.
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf record wget <ulink url='http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2'>http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2</ulink>
-
-     Connecting to downloads.yoctoproject.org (140.211.169.59:80)
-     linux-2.6.19.2.tar.b 100% |************************************************| 41727k  0:00:00 ETA
-     [ perf record: Woken up 1 times to write data ]
-     [ perf record: Captured and wrote 0.176 MB perf.data (~7700 samples) ]
-            </literallayout>
-            To see the results in a 'text-based UI' (tui), simply run
-            'perf report', which will read the perf.data file in the current
-            working directory and display the results in an interactive UI:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf report
-                </literallayout>
-            </para>
-
-            <para>
-                <imagedata fileref="figures/perf-wget-flat-stripped.png" width="6in" depth="7in" align="center" scalefit="1" />
-            </para>
-
-            <para>
-                The above screenshot displays a 'flat' profile, one entry for
-                each 'bucket' corresponding to the functions that were profiled
-                during the profiling run, ordered from the most popular to the
-                least (perf has options to sort in various orders and keys as
-                well as display entries only above a certain threshold and so
-                on - see the perf documentation for details). Note that this
-                includes both userspace functions (entries containing a [.]) and
-                kernel functions accounted to the process (entries containing
-                a [k]). (perf has command-line modifiers that can be used to
-                restrict the profiling to kernel or userspace, among others).
-            </para>
-
-            <para>
-                Notice also that the above report shows an entry for 'busybox',
-                which is the executable that implements 'wget' in Yocto, but that
-                instead of a useful function name in that entry, it displays
-                a not-so-friendly hex value instead. The steps below will show
-                how to fix that problem.
-            </para>
-
-            <para>
-                Before we do that, however, let's try running a different profile,
-                one which shows something a little more interesting. The only
-                difference between the new profile and the previous one is that
-                we'll add the -g option, which will record not just the address
-                of a sampled function, but the entire callchain to the sampled
-                function as well:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf record -g wget <ulink url='http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2'>http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2</ulink>
-     Connecting to downloads.yoctoproject.org (140.211.169.59:80)
-     linux-2.6.19.2.tar.b 100% |************************************************| 41727k  0:00:00 ETA
-     [ perf record: Woken up 3 times to write data ]
-     [ perf record: Captured and wrote 0.652 MB perf.data (~28476 samples) ]
-
-
-     root@crownbay:~# perf report
-                </literallayout>
-            </para>
-
-            <para>
-                <imagedata fileref="figures/perf-wget-g-copy-to-user-expanded-stripped.png" width="6in" depth="7in" align="center" scalefit="1" />
-            </para>
-
-            <para>
-                Using the callgraph view, we can actually see not only which
-                functions took the most time, but we can also see a summary of
-                how those functions were called and learn something about how the
-                program interacts with the kernel in the process.
-            </para>
-
-            <para>
-                Notice that each entry in the above screenshot now contains a '+'
-                on the left-hand side. This means that we can expand the entry and
-                drill down into the callchains that feed into that entry.
-                Pressing 'enter' on any one of them will expand the callchain
-                (you can also press 'E' to expand them all at the same time or 'C'
-                to collapse them all).
-            </para>
-
-            <para>
-                In the screenshot above, we've toggled the __copy_to_user_ll()
-                entry and several subnodes all the way down. This lets us see
-                which callchains contributed to the profiled __copy_to_user_ll()
-                function which contributed 1.77% to the total profile.
-            </para>
-
-            <para>
-                As a bit of background explanation for these callchains, think
-                about what happens at a high level when you run wget to get a file
-                out on the network. Basically what happens is that the data comes
-                into the kernel via the network connection (socket) and is passed
-                to the userspace program 'wget' (which is actually a part of
-                busybox, but that's not important for now), which takes the buffers
-                the kernel passes to it and writes it to a disk file to save it.
-            </para>
-
-            <para>
-                The part of this process that we're looking at in the above call
-                stacks is the part where the kernel passes the data it's read from
-                the socket down to wget i.e. a copy-to-user.
-            </para>
-
-            <para>
-                Notice also that here there's also a case where the hex value
-                is displayed in the callstack, here in the expanded
-                sys_clock_gettime() function. Later we'll see it resolve to a
-                userspace function call in busybox.
-            </para>
-
-            <para>
-                <imagedata fileref="figures/perf-wget-g-copy-from-user-expanded-stripped.png" width="6in" depth="7in" align="center" scalefit="1" />
-            </para>
-
-            <para>
-                The above screenshot shows the other half of the journey for the
-                data - from the wget program's userspace buffers to disk. To get
-                the buffers to disk, the wget program issues a write(2), which
-                does a copy-from-user to the kernel, which then takes care via
-                some circuitous path (probably also present somewhere in the
-                profile data), to get it safely to disk.
-            </para>
-
-            <para>
-                Now that we've seen the basic layout of the profile data and the
-                basics of how to extract useful information out of it, let's get
-                back to the task at hand and see if we can get some basic idea
-                about where the time is spent in the program we're profiling,
-                wget. Remember that wget is actually implemented as an applet
-                in busybox, so while the process name is 'wget', the executable
-                we're actually interested in is busybox. So let's expand the
-                first entry containing busybox:
-            </para>
-
-            <para>
-                <imagedata fileref="figures/perf-wget-busybox-expanded-stripped.png" width="6in" depth="7in" align="center" scalefit="1" />
-            </para>
-
-            <para>
-                Again, before we expanded we saw that the function was labeled
-                with a hex value instead of a symbol as with most of the kernel
-                entries. Expanding the busybox entry doesn't make it any better.
-            </para>
-
-            <para>
-                The problem is that perf can't find the symbol information for the
-                busybox binary, which is actually stripped out by the Yocto build
-                system.
-            </para>
-
-            <para>
-                One way around that is to put the following in your
-                <filename>local.conf</filename> file when you build the image:
-                <literallayout class='monospaced'>
-     <ulink url='&YOCTO_DOCS_REF_URL;#var-INHIBIT_PACKAGE_STRIP'>INHIBIT_PACKAGE_STRIP</ulink> = "1"
-                </literallayout>
-                However, we already have an image with the binaries stripped,
-                so what can we do to get perf to resolve the symbols? Basically
-                we need to install the debuginfo for the busybox package.
-            </para>
-
-            <para>
-                To generate the debug info for the packages in the image, we can
-                add dbg-pkgs to EXTRA_IMAGE_FEATURES in local.conf. For example:
-                <literallayout class='monospaced'>
-     EXTRA_IMAGE_FEATURES = "debug-tweaks tools-profile dbg-pkgs"
-                </literallayout>
-                Additionally, in order to generate the type of debuginfo that
-                perf understands, we also need to set
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_DEBUG_SPLIT_STYLE'><filename>PACKAGE_DEBUG_SPLIT_STYLE</filename></ulink>
-                in the <filename>local.conf</filename> file:
-                <literallayout class='monospaced'>
-     PACKAGE_DEBUG_SPLIT_STYLE = 'debug-file-directory'
-                </literallayout>
-                Once we've done that, we can install the debuginfo for busybox.
-                The debug packages once built can be found in
-                build/tmp/deploy/rpm/* on the host system. Find the
-                busybox-dbg-...rpm file and copy it to the target. For example:
-                <literallayout class='monospaced'>
-     [trz@empanada core2]$ scp /home/trz/yocto/crownbay-tracing-dbg/build/tmp/deploy/rpm/core2_32/busybox-dbg-1.20.2-r2.core2_32.rpm root@192.168.1.31:
-     root@192.168.1.31's password:
-     busybox-dbg-1.20.2-r2.core2_32.rpm                     100% 1826KB   1.8MB/s   00:01
-                </literallayout>
-                Now install the debug rpm on the target:
-                <literallayout class='monospaced'>
-     root@crownbay:~# rpm -i busybox-dbg-1.20.2-r2.core2_32.rpm
-                </literallayout>
-                Now that the debuginfo is installed, we see that the busybox
-                entries now display their functions symbolically:
-            </para>
-
-            <para>
-                <imagedata fileref="figures/perf-wget-busybox-debuginfo.png" width="6in" depth="7in" align="center" scalefit="1" />
-            </para>
-
-            <para>
-                If we expand one of the entries and press 'enter' on a leaf node,
-                we're presented with a menu of actions we can take to get more
-                information related to that entry:
-            </para>
-
-            <para>
-                <imagedata fileref="figures/perf-wget-busybox-dso-zoom-menu.png" width="6in" depth="2in" align="center" scalefit="1" />
-            </para>
-
-            <para>
-                One of these actions allows us to show a view that displays a
-                busybox-centric view of the profiled functions (in this case we've
-                also expanded all the nodes using the 'E' key):
-            </para>
-
-            <para>
-                <imagedata fileref="figures/perf-wget-busybox-dso-zoom.png" width="6in" depth="7in" align="center" scalefit="1" />
-            </para>
-
-            <para>
-                Finally, we can see that now that the busybox debuginfo is
-                installed, the previously unresolved symbol in the
-                sys_clock_gettime() entry mentioned previously is now resolved,
-                and shows that the sys_clock_gettime system call that was the
-                source of 6.75% of the copy-to-user overhead was initiated by
-                the handle_input() busybox function:
-            </para>
-
-            <para>
-                <imagedata fileref="figures/perf-wget-g-copy-to-user-expanded-debuginfo.png" width="6in" depth="7in" align="center" scalefit="1" />
-            </para>
-
-            <para>
-                At the lowest level of detail, we can dive down to the assembly
-                level and see which instructions caused the most overhead in a
-                function. Pressing 'enter' on the 'udhcpc_main' function, we're
-                again presented with a menu:
-            </para>
-
-            <para>
-                <imagedata fileref="figures/perf-wget-busybox-annotate-menu.png" width="6in" depth="2in" align="center" scalefit="1" />
-            </para>
-
-            <para>
-                Selecting 'Annotate udhcpc_main', we get a detailed listing of
-                percentages by instruction for the udhcpc_main function. From the
-                display, we can see that over 50% of the time spent in this
-                function is taken up by a couple tests and the move of a
-                constant (1) to a register:
-            </para>
-
-            <para>
-                <imagedata fileref="figures/perf-wget-busybox-annotate-udhcpc.png" width="6in" depth="7in" align="center" scalefit="1" />
-            </para>
-
-            <para>
-                As a segue into tracing, let's try another profile using a
-                different counter, something other than the default 'cycles'.
-            </para>
-
-            <para>
-                The tracing and profiling infrastructure in Linux has become
-                unified in a way that allows us to use the same tool with a
-                completely different set of counters, not just the standard
-                hardware counters that traditional tools have had to restrict
-                themselves to (of course the traditional tools can also make use
-                of the expanded possibilities now available to them, and in some
-                cases have, as mentioned previously).
-            </para>
-
-            <para>
-                We can get a list of the available events that can be used to
-                profile a workload via 'perf list':
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf list
-
-     List of pre-defined events (to be used in -e):
-      cpu-cycles OR cycles                               [Hardware event]
-      stalled-cycles-frontend OR idle-cycles-frontend    [Hardware event]
-      stalled-cycles-backend OR idle-cycles-backend      [Hardware event]
-      instructions                                       [Hardware event]
-      cache-references                                   [Hardware event]
-      cache-misses                                       [Hardware event]
-      branch-instructions OR branches                    [Hardware event]
-      branch-misses                                      [Hardware event]
-      bus-cycles                                         [Hardware event]
-      ref-cycles                                         [Hardware event]
-
-      cpu-clock                                          [Software event]
-      task-clock                                         [Software event]
-      page-faults OR faults                              [Software event]
-      minor-faults                                       [Software event]
-      major-faults                                       [Software event]
-      context-switches OR cs                             [Software event]
-      cpu-migrations OR migrations                       [Software event]
-      alignment-faults                                   [Software event]
-      emulation-faults                                   [Software event]
-
-      L1-dcache-loads                                    [Hardware cache event]
-      L1-dcache-load-misses                              [Hardware cache event]
-      L1-dcache-prefetch-misses                          [Hardware cache event]
-      L1-icache-loads                                    [Hardware cache event]
-      L1-icache-load-misses                              [Hardware cache event]
-      .
-      .
-      .
-      rNNN                                               [Raw hardware event descriptor]
-      cpu/t1=v1[,t2=v2,t3 ...]/modifier                  [Raw hardware event descriptor]
-       (see 'perf list --help' on how to encode it)
-
-      mem:&lt;addr&gt;[:access]                                [Hardware breakpoint]
-
-      sunrpc:rpc_call_status                             [Tracepoint event]
-      sunrpc:rpc_bind_status                             [Tracepoint event]
-      sunrpc:rpc_connect_status                          [Tracepoint event]
-      sunrpc:rpc_task_begin                              [Tracepoint event]
-      skb:kfree_skb                                      [Tracepoint event]
-      skb:consume_skb                                    [Tracepoint event]
-      skb:skb_copy_datagram_iovec                        [Tracepoint event]
-      net:net_dev_xmit                                   [Tracepoint event]
-      net:net_dev_queue                                  [Tracepoint event]
-      net:netif_receive_skb                              [Tracepoint event]
-      net:netif_rx                                       [Tracepoint event]
-      napi:napi_poll                                     [Tracepoint event]
-      sock:sock_rcvqueue_full                            [Tracepoint event]
-      sock:sock_exceed_buf_limit                         [Tracepoint event]
-      udp:udp_fail_queue_rcv_skb                         [Tracepoint event]
-      hda:hda_send_cmd                                   [Tracepoint event]
-      hda:hda_get_response                               [Tracepoint event]
-      hda:hda_bus_reset                                  [Tracepoint event]
-      scsi:scsi_dispatch_cmd_start                       [Tracepoint event]
-      scsi:scsi_dispatch_cmd_error                       [Tracepoint event]
-      scsi:scsi_eh_wakeup                                [Tracepoint event]
-      drm:drm_vblank_event                               [Tracepoint event]
-      drm:drm_vblank_event_queued                        [Tracepoint event]
-      drm:drm_vblank_event_delivered                     [Tracepoint event]
-      random:mix_pool_bytes                              [Tracepoint event]
-      random:mix_pool_bytes_nolock                       [Tracepoint event]
-      random:credit_entropy_bits                         [Tracepoint event]
-      gpio:gpio_direction                                [Tracepoint event]
-      gpio:gpio_value                                    [Tracepoint event]
-      block:block_rq_abort                               [Tracepoint event]
-      block:block_rq_requeue                             [Tracepoint event]
-      block:block_rq_issue                               [Tracepoint event]
-      block:block_bio_bounce                             [Tracepoint event]
-      block:block_bio_complete                           [Tracepoint event]
-      block:block_bio_backmerge                          [Tracepoint event]
-      .
-      .
-      writeback:writeback_wake_thread                    [Tracepoint event]
-      writeback:writeback_wake_forker_thread             [Tracepoint event]
-      writeback:writeback_bdi_register                   [Tracepoint event]
-      .
-      .
-      writeback:writeback_single_inode_requeue           [Tracepoint event]
-      writeback:writeback_single_inode                   [Tracepoint event]
-      kmem:kmalloc                                       [Tracepoint event]
-      kmem:kmem_cache_alloc                              [Tracepoint event]
-      kmem:mm_page_alloc                                 [Tracepoint event]
-      kmem:mm_page_alloc_zone_locked                     [Tracepoint event]
-      kmem:mm_page_pcpu_drain                            [Tracepoint event]
-      kmem:mm_page_alloc_extfrag                         [Tracepoint event]
-      vmscan:mm_vmscan_kswapd_sleep                      [Tracepoint event]
-      vmscan:mm_vmscan_kswapd_wake                       [Tracepoint event]
-      vmscan:mm_vmscan_wakeup_kswapd                     [Tracepoint event]
-      vmscan:mm_vmscan_direct_reclaim_begin              [Tracepoint event]
-      .
-      .
-      module:module_get                                  [Tracepoint event]
-      module:module_put                                  [Tracepoint event]
-      module:module_request                              [Tracepoint event]
-      sched:sched_kthread_stop                           [Tracepoint event]
-      sched:sched_wakeup                                 [Tracepoint event]
-      sched:sched_wakeup_new                             [Tracepoint event]
-      sched:sched_process_fork                           [Tracepoint event]
-      sched:sched_process_exec                           [Tracepoint event]
-      sched:sched_stat_runtime                           [Tracepoint event]
-      rcu:rcu_utilization                                [Tracepoint event]
-      workqueue:workqueue_queue_work                     [Tracepoint event]
-      workqueue:workqueue_execute_end                    [Tracepoint event]
-      signal:signal_generate                             [Tracepoint event]
-      signal:signal_deliver                              [Tracepoint event]
-      timer:timer_init                                   [Tracepoint event]
-      timer:timer_start                                  [Tracepoint event]
-      timer:hrtimer_cancel                               [Tracepoint event]
-      timer:itimer_state                                 [Tracepoint event]
-      timer:itimer_expire                                [Tracepoint event]
-      irq:irq_handler_entry                              [Tracepoint event]
-      irq:irq_handler_exit                               [Tracepoint event]
-      irq:softirq_entry                                  [Tracepoint event]
-      irq:softirq_exit                                   [Tracepoint event]
-      irq:softirq_raise                                  [Tracepoint event]
-      printk:console                                     [Tracepoint event]
-      task:task_newtask                                  [Tracepoint event]
-      task:task_rename                                   [Tracepoint event]
-      syscalls:sys_enter_socketcall                      [Tracepoint event]
-      syscalls:sys_exit_socketcall                       [Tracepoint event]
-      .
-      .
-      .
-      syscalls:sys_enter_unshare                         [Tracepoint event]
-      syscalls:sys_exit_unshare                          [Tracepoint event]
-      raw_syscalls:sys_enter                             [Tracepoint event]
-      raw_syscalls:sys_exit                              [Tracepoint event]
-                </literallayout>
-            </para>
-
-            <informalexample>
-                <emphasis>Tying it Together:</emphasis> These are exactly the same set of events defined
-                by the trace event subsystem and exposed by
-                ftrace/tracecmd/kernelshark as files in
-                /sys/kernel/debug/tracing/events, by SystemTap as
-                kernel.trace("tracepoint_name") and (partially) accessed by LTTng.
-            </informalexample>
-
-            <para>
-                Only a subset of these would be of interest to us when looking at
-                this workload, so let's choose the most likely subsystems
-                (identified by the string before the colon in the Tracepoint events)
-                and do a 'perf stat' run using only those wildcarded subsystems:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf stat -e skb:* -e net:* -e napi:* -e sched:* -e workqueue:* -e irq:* -e syscalls:* wget <ulink url='http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2'>http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2</ulink>
-     Performance counter stats for 'wget <ulink url='http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2'>http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2</ulink>':
-
-                 23323 skb:kfree_skb
-                     0 skb:consume_skb
-                 49897 skb:skb_copy_datagram_iovec
-                  6217 net:net_dev_xmit
-                  6217 net:net_dev_queue
-                  7962 net:netif_receive_skb
-                     2 net:netif_rx
-                  8340 napi:napi_poll
-                     0 sched:sched_kthread_stop
-                     0 sched:sched_kthread_stop_ret
-                  3749 sched:sched_wakeup
-                     0 sched:sched_wakeup_new
-                     0 sched:sched_switch
-                    29 sched:sched_migrate_task
-                     0 sched:sched_process_free
-                     1 sched:sched_process_exit
-                     0 sched:sched_wait_task
-                     0 sched:sched_process_wait
-                     0 sched:sched_process_fork
-                     1 sched:sched_process_exec
-                     0 sched:sched_stat_wait
-         2106519415641 sched:sched_stat_sleep
-                     0 sched:sched_stat_iowait
-             147453613 sched:sched_stat_blocked
-           12903026955 sched:sched_stat_runtime
-                     0 sched:sched_pi_setprio
-                  3574 workqueue:workqueue_queue_work
-                  3574 workqueue:workqueue_activate_work
-                     0 workqueue:workqueue_execute_start
-                     0 workqueue:workqueue_execute_end
-                 16631 irq:irq_handler_entry
-                 16631 irq:irq_handler_exit
-                 28521 irq:softirq_entry
-                 28521 irq:softirq_exit
-                 28728 irq:softirq_raise
-                     1 syscalls:sys_enter_sendmmsg
-                     1 syscalls:sys_exit_sendmmsg
-                     0 syscalls:sys_enter_recvmmsg
-                     0 syscalls:sys_exit_recvmmsg
-                    14 syscalls:sys_enter_socketcall
-                    14 syscalls:sys_exit_socketcall
-                       .
-                       .
-                       .
-                 16965 syscalls:sys_enter_read
-                 16965 syscalls:sys_exit_read
-                 12854 syscalls:sys_enter_write
-                 12854 syscalls:sys_exit_write
-                       .
-                       .
-                       .
-
-          58.029710972 seconds time elapsed
-                </literallayout>
-                Let's pick one of these tracepoints and tell perf to do a profile
-                using it as the sampling event:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf record -g -e sched:sched_wakeup wget <ulink url='http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2'>http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2</ulink>
-                </literallayout>
-            </para>
-
-            <para>
-                <imagedata fileref="figures/sched-wakeup-profile.png" width="6in" depth="7in" align="center" scalefit="1" />
-            </para>
-
-            <para>
-                The screenshot above shows the results of running a profile using
-                sched:sched_switch tracepoint, which shows the relative costs of
-                various paths to sched_wakeup (note that sched_wakeup is the
-                name of the tracepoint - it's actually defined just inside
-                ttwu_do_wakeup(), which accounts for the function name actually
-                displayed in the profile:
-                <literallayout class='monospaced'>
-     /*
-      * Mark the task runnable and perform wakeup-preemption.
-      */
-     static void
-     ttwu_do_wakeup(struct rq *rq, struct task_struct *p, int wake_flags)
-     {
-          trace_sched_wakeup(p, true);
-          .
-          .
-          .
-     }
-                </literallayout>
-                A couple of the more interesting callchains are expanded and
-                displayed above, basically some network receive paths that
-                presumably end up waking up wget (busybox) when network data is
-                ready.
-            </para>
-
-            <para>
-                Note that because tracepoints are normally used for tracing,
-                the default sampling period for tracepoints is 1 i.e. for
-                tracepoints perf will sample on every event occurrence (this
-                can be changed using the -c option). This is in contrast to
-                hardware counters such as for example the default 'cycles'
-                hardware counter used for normal profiling, where sampling
-                periods are much higher (in the thousands) because profiling should
-                have as low an overhead as possible and sampling on every cycle
-                would be prohibitively expensive.
-            </para>
-        </section>
-
-        <section id='using-perf-to-do-basic-tracing'>
-            <title>Using perf to do Basic Tracing</title>
-
-            <para>
-                Profiling is a great tool for solving many problems or for
-                getting a high-level view of what's going on with a workload or
-                across the system. It is however by definition an approximation,
-                as suggested by the most prominent word associated with it,
-                'sampling'. On the one hand, it allows a representative picture of
-                what's going on in the system to be cheaply taken, but on the other
-                hand, that cheapness limits its utility when that data suggests a
-                need to 'dive down' more deeply to discover what's really going
-                on. In such cases, the only way to see what's really going on is
-                to be able to look at (or summarize more intelligently) the
-                individual steps that go into the higher-level behavior exposed
-                by the coarse-grained profiling data.
-            </para>
-
-            <para>
-                As a concrete example, we can trace all the events we think might
-                be applicable to our workload:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf record -g -e skb:* -e net:* -e napi:* -e sched:sched_switch -e sched:sched_wakeup -e irq:*
-      -e syscalls:sys_enter_read -e syscalls:sys_exit_read -e syscalls:sys_enter_write -e syscalls:sys_exit_write
-      wget <ulink url='http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2'>http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2</ulink>
-                </literallayout>
-                We can look at the raw trace output using 'perf script' with no
-                arguments:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf script
-
-           perf  1262 [000] 11624.857082: sys_exit_read: 0x0
-           perf  1262 [000] 11624.857193: sched_wakeup: comm=migration/0 pid=6 prio=0 success=1 target_cpu=000
-           wget  1262 [001] 11624.858021: softirq_raise: vec=1 [action=TIMER]
-           wget  1262 [001] 11624.858074: softirq_entry: vec=1 [action=TIMER]
-           wget  1262 [001] 11624.858081: softirq_exit: vec=1 [action=TIMER]
-           wget  1262 [001] 11624.858166: sys_enter_read: fd: 0x0003, buf: 0xbf82c940, count: 0x0200
-           wget  1262 [001] 11624.858177: sys_exit_read: 0x200
-           wget  1262 [001] 11624.858878: kfree_skb: skbaddr=0xeb248d80 protocol=0 location=0xc15a5308
-           wget  1262 [001] 11624.858945: kfree_skb: skbaddr=0xeb248000 protocol=0 location=0xc15a5308
-           wget  1262 [001] 11624.859020: softirq_raise: vec=1 [action=TIMER]
-           wget  1262 [001] 11624.859076: softirq_entry: vec=1 [action=TIMER]
-           wget  1262 [001] 11624.859083: softirq_exit: vec=1 [action=TIMER]
-           wget  1262 [001] 11624.859167: sys_enter_read: fd: 0x0003, buf: 0xb7720000, count: 0x0400
-           wget  1262 [001] 11624.859192: sys_exit_read: 0x1d7
-           wget  1262 [001] 11624.859228: sys_enter_read: fd: 0x0003, buf: 0xb7720000, count: 0x0400
-           wget  1262 [001] 11624.859233: sys_exit_read: 0x0
-           wget  1262 [001] 11624.859573: sys_enter_read: fd: 0x0003, buf: 0xbf82c580, count: 0x0200
-           wget  1262 [001] 11624.859584: sys_exit_read: 0x200
-           wget  1262 [001] 11624.859864: sys_enter_read: fd: 0x0003, buf: 0xb7720000, count: 0x0400
-           wget  1262 [001] 11624.859888: sys_exit_read: 0x400
-           wget  1262 [001] 11624.859935: sys_enter_read: fd: 0x0003, buf: 0xb7720000, count: 0x0400
-           wget  1262 [001] 11624.859944: sys_exit_read: 0x400
-                </literallayout>
-                This gives us a detailed timestamped sequence of events that
-                occurred within the workload with respect to those events.
-            </para>
-
-            <para>
-                In many ways, profiling can be viewed as a subset of tracing -
-                theoretically, if you have a set of trace events that's sufficient
-                to capture all the important aspects of a workload, you can derive
-                any of the results or views that a profiling run can.
-            </para>
-
-            <para>
-                Another aspect of traditional profiling is that while powerful in
-                many ways, it's limited by the granularity of the underlying data.
-                Profiling tools offer various ways of sorting and presenting the
-                sample data, which make it much more useful and amenable to user
-                experimentation, but in the end it can't be used in an open-ended
-                way to extract data that just isn't present as a consequence of
-                the fact that conceptually, most of it has been thrown away.
-            </para>
-
-            <para>
-                Full-blown detailed tracing data does however offer the opportunity
-                to manipulate and present the information collected during a
-                tracing run in an infinite variety of ways.
-            </para>
-
-            <para>
-                Another way to look at it is that there are only so many ways that
-                the 'primitive' counters can be used on their own to generate
-                interesting output; to get anything more complicated than simple
-                counts requires some amount of additional logic, which is typically
-                very specific to the problem at hand. For example, if we wanted to
-                make use of a 'counter' that maps to the value of the time
-                difference between when a process was scheduled to run on a
-                processor and the time it actually ran, we wouldn't expect such
-                a counter to exist on its own, but we could derive one called say
-                'wakeup_latency' and use it to extract a useful view of that metric
-                from trace data. Likewise, we really can't figure out from standard
-                profiling tools how much data every process on the system reads and
-                writes, along with how many of those reads and writes fail
-                completely. If we have sufficient trace data, however, we could
-                with the right tools easily extract and present that information,
-                but we'd need something other than pre-canned profiling tools to
-                do that.
-            </para>
-
-            <para>
-                Luckily, there is a general-purpose way to handle such needs,
-                called 'programming languages'. Making programming languages
-                easily available to apply to such problems given the specific
-                format of data is called a 'programming language binding' for
-                that data and language. Perf supports two programming language
-                bindings, one for Python and one for Perl.
-            </para>
-
-            <informalexample>
-                <emphasis>Tying it Together:</emphasis> Language bindings for manipulating and
-                aggregating trace data are of course not a new
-                idea.  One of the first projects to do this was IBM's DProbes
-                dpcc compiler, an ANSI C compiler which targeted a low-level
-                assembly language running on an in-kernel interpreter on the
-                target system.  This is exactly analogous to what Sun's DTrace
-                did, except that DTrace invented its own language for the purpose.
-                Systemtap, heavily inspired by DTrace, also created its own
-                one-off language, but rather than running the product on an
-                in-kernel interpreter, created an elaborate compiler-based
-                machinery to translate its language into kernel modules written
-                in C.
-            </informalexample>
-
-            <para>
-                Now that we have the trace data in perf.data, we can use
-                'perf script -g' to generate a skeleton script with handlers
-                for the read/write entry/exit events we recorded:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf script -g python
-     generated Python script: perf-script.py
-                </literallayout>
-                The skeleton script simply creates a python function for each
-                event type in the perf.data file. The body of each function simply
-                prints the event name along with its parameters. For example:
-                <literallayout class='monospaced'>
-     def net__netif_rx(event_name, context, common_cpu,
-            common_secs, common_nsecs, common_pid, common_comm,
-            skbaddr, len, name):
-                    print_header(event_name, common_cpu, common_secs, common_nsecs,
-                            common_pid, common_comm)
-
-		     print "skbaddr=%u, len=%u, name=%s\n" % (skbaddr, len, name),
-                </literallayout>
-                We can run that script directly to print all of the events
-                contained in the perf.data file:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf script -s perf-script.py
-
-     in trace_begin
-     syscalls__sys_exit_read     0 11624.857082795     1262 perf                  nr=3, ret=0
-     sched__sched_wakeup      0 11624.857193498     1262 perf                  comm=migration/0, pid=6, prio=0,      success=1, target_cpu=0
-     irq__softirq_raise       1 11624.858021635     1262 wget                  vec=TIMER
-     irq__softirq_entry       1 11624.858074075     1262 wget                  vec=TIMER
-     irq__softirq_exit        1 11624.858081389     1262 wget                  vec=TIMER
-     syscalls__sys_enter_read     1 11624.858166434     1262 wget                  nr=3, fd=3, buf=3213019456,      count=512
-     syscalls__sys_exit_read     1 11624.858177924     1262 wget                  nr=3, ret=512
-     skb__kfree_skb           1 11624.858878188     1262 wget                  skbaddr=3945041280,           location=3243922184, protocol=0
-     skb__kfree_skb           1 11624.858945608     1262 wget                  skbaddr=3945037824,      location=3243922184, protocol=0
-     irq__softirq_raise       1 11624.859020942     1262 wget                  vec=TIMER
-     irq__softirq_entry       1 11624.859076935     1262 wget                  vec=TIMER
-     irq__softirq_exit        1 11624.859083469     1262 wget                  vec=TIMER
-     syscalls__sys_enter_read     1 11624.859167565     1262 wget                  nr=3, fd=3, buf=3077701632,      count=1024
-     syscalls__sys_exit_read     1 11624.859192533     1262 wget                  nr=3, ret=471
-     syscalls__sys_enter_read     1 11624.859228072     1262 wget                  nr=3, fd=3, buf=3077701632,      count=1024
-     syscalls__sys_exit_read     1 11624.859233707     1262 wget                  nr=3, ret=0
-     syscalls__sys_enter_read     1 11624.859573008     1262 wget                  nr=3, fd=3, buf=3213018496,      count=512
-     syscalls__sys_exit_read     1 11624.859584818     1262 wget                  nr=3, ret=512
-     syscalls__sys_enter_read     1 11624.859864562     1262 wget                  nr=3, fd=3, buf=3077701632,      count=1024
-     syscalls__sys_exit_read     1 11624.859888770     1262 wget                  nr=3, ret=1024
-     syscalls__sys_enter_read     1 11624.859935140     1262 wget                  nr=3, fd=3, buf=3077701632,      count=1024
-     syscalls__sys_exit_read     1 11624.859944032     1262 wget                  nr=3, ret=1024
-                </literallayout>
-                That in itself isn't very useful; after all, we can accomplish
-                pretty much the same thing by simply running 'perf script'
-                without arguments in the same directory as the perf.data file.
-            </para>
-
-            <para>
-                We can however replace the print statements in the generated
-                function bodies with whatever we want, and thereby make it
-                infinitely more useful.
-            </para>
-
-            <para>
-                As a simple example, let's just replace the print statements in
-                the function bodies with a simple function that does nothing but
-                increment a per-event count. When the program is run against a
-                perf.data file, each time a particular event is encountered,
-                a tally is incremented for that event. For example:
-                <literallayout class='monospaced'>
-     def net__netif_rx(event_name, context, common_cpu,
-            common_secs, common_nsecs, common_pid, common_comm,
-            skbaddr, len, name):
-		          inc_counts(event_name)
-                </literallayout>
-                Each event handler function in the generated code is modified
-                to do this. For convenience, we define a common function called
-                inc_counts() that each handler calls; inc_counts() simply tallies
-                a count for each event using the 'counts' hash, which is a
-                specialized hash function that does Perl-like autovivification, a
-                capability that's extremely useful for kinds of multi-level
-                aggregation commonly used in processing traces (see perf's
-                documentation on the Python language binding for details):
-                <literallayout class='monospaced'>
-     counts = autodict()
-
-     def inc_counts(event_name):
-            try:
-                    counts[event_name] += 1
-            except TypeError:
-                    counts[event_name] = 1
-                </literallayout>
-                Finally, at the end of the trace processing run, we want to
-                print the result of all the per-event tallies. For that, we
-                use the special 'trace_end()' function:
-                <literallayout class='monospaced'>
-     def trace_end():
-            for event_name, count in counts.iteritems():
-                    print "%-40s %10s\n" % (event_name, count)
-                </literallayout>
-                The end result is a summary of all the events recorded in the
-                trace:
-                <literallayout class='monospaced'>
-     skb__skb_copy_datagram_iovec                  13148
-     irq__softirq_entry                             4796
-     irq__irq_handler_exit                          3805
-     irq__softirq_exit                              4795
-     syscalls__sys_enter_write                      8990
-     net__net_dev_xmit                               652
-     skb__kfree_skb                                 4047
-     sched__sched_wakeup                            1155
-     irq__irq_handler_entry                         3804
-     irq__softirq_raise                             4799
-     net__net_dev_queue                              652
-     syscalls__sys_enter_read                      17599
-     net__netif_receive_skb                         1743
-     syscalls__sys_exit_read                       17598
-     net__netif_rx                                     2
-     napi__napi_poll                                1877
-     syscalls__sys_exit_write                       8990
-                </literallayout>
-                Note that this is pretty much exactly the same information we get
-                from 'perf stat', which goes a little way to support the idea
-                mentioned previously that given the right kind of trace data,
-                higher-level profiling-type summaries can be derived from it.
-            </para>
-
-            <para>
-                Documentation on using the
-                <ulink url='http://linux.die.net/man/1/perf-script-python'>'perf script' python binding</ulink>.
-            </para>
-        </section>
-
-        <section id='system-wide-tracing-and-profiling'>
-            <title>System-Wide Tracing and Profiling</title>
-
-            <para>
-                The examples so far have focused on tracing a particular program or
-                workload - in other words, every profiling run has specified the
-                program to profile in the command-line e.g. 'perf record wget ...'.
-            </para>
-
-            <para>
-                It's also possible, and more interesting in many cases, to run a
-                system-wide profile or trace while running the workload in a
-                separate shell.
-            </para>
-
-            <para>
-                To do system-wide profiling or tracing, you typically use
-                the -a flag to 'perf record'.
-            </para>
-
-            <para>
-                To demonstrate this, open up one window and start the profile
-                using the -a flag (press Ctrl-C to stop tracing):
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf record -g -a
-     ^C[ perf record: Woken up 6 times to write data ]
-     [ perf record: Captured and wrote 1.400 MB perf.data (~61172 samples) ]
-                </literallayout>
-                In another window, run the wget test:
-                <literallayout class='monospaced'>
-     root@crownbay:~# wget <ulink url='http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2'>http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2</ulink>
-     Connecting to downloads.yoctoproject.org (140.211.169.59:80)
-     linux-2.6.19.2.tar.b 100% |*******************************| 41727k  0:00:00 ETA
-                </literallayout>
-                Here we see entries not only for our wget load, but for other
-                processes running on the system as well:
-            </para>
-
-            <para>
-                <imagedata fileref="figures/perf-systemwide.png" width="6in" depth="7in" align="center" scalefit="1" />
-            </para>
-
-            <para>
-                In the snapshot above, we can see callchains that originate in
-                libc, and a callchain from Xorg that demonstrates that we're
-                using a proprietary X driver in userspace (notice the presence
-                of 'PVR' and some other unresolvable symbols in the expanded
-                Xorg callchain).
-            </para>
-
-            <para>
-                Note also that we have both kernel and userspace entries in the
-                above snapshot. We can also tell perf to focus on userspace but
-                providing a modifier, in this case 'u', to the 'cycles' hardware
-                counter when we record a profile:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf record -g -a -e cycles:u
-     ^C[ perf record: Woken up 2 times to write data ]
-     [ perf record: Captured and wrote 0.376 MB perf.data (~16443 samples) ]
-                </literallayout>
-            </para>
-
-            <para>
-                <imagedata fileref="figures/perf-report-cycles-u.png" width="6in" depth="7in" align="center" scalefit="1" />
-            </para>
-
-            <para>
-                Notice in the screenshot above, we see only userspace entries ([.])
-            </para>
-
-            <para>
-                Finally, we can press 'enter' on a leaf node and select the 'Zoom
-                into DSO' menu item to show only entries associated with a
-                specific DSO. In the screenshot below, we've zoomed into the
-                'libc' DSO which shows all the entries associated with the
-                libc-xxx.so DSO.
-            </para>
-
-            <para>
-                <imagedata fileref="figures/perf-systemwide-libc.png" width="6in" depth="7in" align="center" scalefit="1" />
-            </para>
-
-            <para>
-                We can also use the system-wide -a switch to do system-wide
-                tracing. Here we'll trace a couple of scheduler events:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf record -a -e sched:sched_switch -e sched:sched_wakeup
-     ^C[ perf record: Woken up 38 times to write data ]
-     [ perf record: Captured and wrote 9.780 MB perf.data (~427299 samples) ]
-                </literallayout>
-                We can look at the raw output using 'perf script' with no
-                arguments:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf script
-
-                perf  1383 [001]  6171.460045: sched_wakeup: comm=kworker/1:1 pid=21 prio=120 success=1 target_cpu=001
-                perf  1383 [001]  6171.460066: sched_switch: prev_comm=perf prev_pid=1383 prev_prio=120 prev_state=R+ ==> next_comm=kworker/1:1 next_pid=21 next_prio=120
-         kworker/1:1    21 [001]  6171.460093: sched_switch: prev_comm=kworker/1:1 prev_pid=21 prev_prio=120 prev_state=S ==> next_comm=perf next_pid=1383 next_prio=120
-             swapper     0 [000]  6171.468063: sched_wakeup: comm=kworker/0:3 pid=1209 prio=120 success=1 target_cpu=000
-             swapper     0 [000]  6171.468107: sched_switch: prev_comm=swapper/0 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=kworker/0:3 next_pid=1209 next_prio=120
-         kworker/0:3  1209 [000]  6171.468143: sched_switch: prev_comm=kworker/0:3 prev_pid=1209 prev_prio=120 prev_state=S ==> next_comm=swapper/0 next_pid=0 next_prio=120
-                perf  1383 [001]  6171.470039: sched_wakeup: comm=kworker/1:1 pid=21 prio=120 success=1 target_cpu=001
-                perf  1383 [001]  6171.470058: sched_switch: prev_comm=perf prev_pid=1383 prev_prio=120 prev_state=R+ ==> next_comm=kworker/1:1 next_pid=21 next_prio=120
-         kworker/1:1    21 [001]  6171.470082: sched_switch: prev_comm=kworker/1:1 prev_pid=21 prev_prio=120 prev_state=S ==> next_comm=perf next_pid=1383 next_prio=120
-                perf  1383 [001]  6171.480035: sched_wakeup: comm=kworker/1:1 pid=21 prio=120 success=1 target_cpu=001
-                </literallayout>
-            </para>
-
-            <section id='perf-filtering'>
-                <title>Filtering</title>
-
-                <para>
-                    Notice that there are a lot of events that don't really have
-                    anything to do with what we're interested in, namely events
-                    that schedule 'perf' itself in and out or that wake perf up.
-                    We can get rid of those by using the '--filter' option -
-                    for each event we specify using -e, we can add a --filter
-                    after that to filter out trace events that contain fields
-                    with specific values:
-                    <literallayout class='monospaced'>
-     root@crownbay:~# perf record -a -e sched:sched_switch --filter 'next_comm != perf &amp;&amp; prev_comm != perf' -e sched:sched_wakeup --filter 'comm != perf'
-     ^C[ perf record: Woken up 38 times to write data ]
-     [ perf record: Captured and wrote 9.688 MB perf.data (~423279 samples) ]
-
-
-     root@crownbay:~# perf script
-
-             swapper     0 [000]  7932.162180: sched_switch: prev_comm=swapper/0 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=kworker/0:3 next_pid=1209 next_prio=120
-         kworker/0:3  1209 [000]  7932.162236: sched_switch: prev_comm=kworker/0:3 prev_pid=1209 prev_prio=120 prev_state=S ==> next_comm=swapper/0 next_pid=0 next_prio=120
-                perf  1407 [001]  7932.170048: sched_wakeup: comm=kworker/1:1 pid=21 prio=120 success=1 target_cpu=001
-                perf  1407 [001]  7932.180044: sched_wakeup: comm=kworker/1:1 pid=21 prio=120 success=1 target_cpu=001
-                perf  1407 [001]  7932.190038: sched_wakeup: comm=kworker/1:1 pid=21 prio=120 success=1 target_cpu=001
-                perf  1407 [001]  7932.200044: sched_wakeup: comm=kworker/1:1 pid=21 prio=120 success=1 target_cpu=001
-                perf  1407 [001]  7932.210044: sched_wakeup: comm=kworker/1:1 pid=21 prio=120 success=1 target_cpu=001
-                perf  1407 [001]  7932.220044: sched_wakeup: comm=kworker/1:1 pid=21 prio=120 success=1 target_cpu=001
-             swapper     0 [001]  7932.230111: sched_wakeup: comm=kworker/1:1 pid=21 prio=120 success=1 target_cpu=001
-             swapper     0 [001]  7932.230146: sched_switch: prev_comm=swapper/1 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=kworker/1:1 next_pid=21 next_prio=120
-         kworker/1:1    21 [001]  7932.230205: sched_switch: prev_comm=kworker/1:1 prev_pid=21 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120
-             swapper     0 [000]  7932.326109: sched_wakeup: comm=kworker/0:3 pid=1209 prio=120 success=1 target_cpu=000
-             swapper     0 [000]  7932.326171: sched_switch: prev_comm=swapper/0 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=kworker/0:3 next_pid=1209 next_prio=120
-         kworker/0:3  1209 [000]  7932.326214: sched_switch: prev_comm=kworker/0:3 prev_pid=1209 prev_prio=120 prev_state=S ==> next_comm=swapper/0 next_pid=0 next_prio=120
-                    </literallayout>
-                    In this case, we've filtered out all events that have 'perf'
-                    in their 'comm' or 'comm_prev' or 'comm_next' fields. Notice
-                    that there are still events recorded for perf, but notice
-                    that those events don't have values of 'perf' for the filtered
-                    fields. To completely filter out anything from perf will
-                    require a bit more work, but for the purpose of demonstrating
-                    how to use filters, it's close enough.
-                </para>
-
-                <informalexample>
-                    <emphasis>Tying it Together:</emphasis> These are exactly the same set of event
-                    filters defined by the trace event subsystem. See the
-                    ftrace/tracecmd/kernelshark section for more discussion about
-                    these event filters.
-                </informalexample>
-
-                <informalexample>
-                    <emphasis>Tying it Together:</emphasis> These event filters are implemented by a
-                    special-purpose pseudo-interpreter in the kernel and are an
-                    integral and indispensable part of the perf design as it
-                    relates to tracing.  kernel-based event filters provide a
-                    mechanism to precisely throttle the event stream that appears
-                    in user space, where it makes sense to provide bindings to real
-                    programming languages for postprocessing the event stream.
-                    This architecture allows for the intelligent and flexible
-                    partitioning of processing between the kernel and user space.
-                    Contrast this with other tools such as SystemTap, which does
-                    all of its processing in the kernel and as such requires a
-                    special project-defined language in order to accommodate that
-                    design, or LTTng, where everything is sent to userspace and
-                    as such requires a super-efficient kernel-to-userspace
-                    transport mechanism in order to function properly.  While
-                    perf certainly can benefit from for instance advances in
-                    the design of the transport, it doesn't fundamentally depend
-                    on them.  Basically, if you find that your perf tracing
-                    application is causing buffer I/O overruns, it probably
-                    means that you aren't taking enough advantage of the
-                    kernel filtering engine.
-                </informalexample>
-            </section>
-        </section>
-
-        <section id='using-dynamic-tracepoints'>
-            <title>Using Dynamic Tracepoints</title>
-
-            <para>
-                perf isn't restricted to the fixed set of static tracepoints
-                listed by 'perf list'. Users can also add their own 'dynamic'
-                tracepoints anywhere in the kernel. For instance, suppose we
-                want to define our own tracepoint on do_fork(). We can do that
-                using the 'perf probe' perf subcommand:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf probe do_fork
-     Added new event:
-       probe:do_fork        (on do_fork)
-
-     You can now use it in all perf tools, such as:
-
-	     perf record -e probe:do_fork -aR sleep 1
-                </literallayout>
-                Adding a new tracepoint via 'perf probe' results in an event
-                with all the expected files and format in
-                /sys/kernel/debug/tracing/events, just the same as for static
-                tracepoints (as discussed in more detail in the trace events
-                subsystem section:
-                <literallayout class='monospaced'>
-     root@crownbay:/sys/kernel/debug/tracing/events/probe/do_fork# ls -al
-     drwxr-xr-x    2 root     root             0 Oct 28 11:42 .
-     drwxr-xr-x    3 root     root             0 Oct 28 11:42 ..
-     -rw-r--r--    1 root     root             0 Oct 28 11:42 enable
-     -rw-r--r--    1 root     root             0 Oct 28 11:42 filter
-     -r--r--r--    1 root     root             0 Oct 28 11:42 format
-     -r--r--r--    1 root     root             0 Oct 28 11:42 id
-
-     root@crownbay:/sys/kernel/debug/tracing/events/probe/do_fork# cat format
-     name: do_fork
-     ID: 944
-     format:
-	     field:unsigned short common_type;	offset:0;	size:2;	signed:0;
-	     field:unsigned char common_flags;	offset:2;	size:1;	signed:0;
-	     field:unsigned char common_preempt_count;	offset:3;	size:1;	signed:0;
-	     field:int common_pid;	offset:4;	size:4;	signed:1;
-	     field:int common_padding;	offset:8;	size:4;	signed:1;
-
-	     field:unsigned long __probe_ip;	offset:12;	size:4;	signed:0;
-
-     print fmt: "(%lx)", REC->__probe_ip
-                </literallayout>
-                We can list all dynamic tracepoints currently in existence:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf probe -l
-      probe:do_fork        (on do_fork)
-      probe:schedule       (on schedule)
-                </literallayout>
-                Let's record system-wide ('sleep 30' is a trick for recording
-                system-wide but basically do nothing and then wake up after
-                30 seconds):
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf record -g -a -e probe:do_fork sleep 30
-     [ perf record: Woken up 1 times to write data ]
-     [ perf record: Captured and wrote 0.087 MB perf.data (~3812 samples) ]
-                </literallayout>
-                Using 'perf script' we can see each do_fork event that fired:
-                <literallayout class='monospaced'>
-     root@crownbay:~# perf script
-
-     # ========
-     # captured on: Sun Oct 28 11:55:18 2012
-     # hostname : crownbay
-     # os release : 3.4.11-yocto-standard
-     # perf version : 3.4.11
-     # arch : i686
-     # nrcpus online : 2
-     # nrcpus avail : 2
-     # cpudesc : Intel(R) Atom(TM) CPU E660 @ 1.30GHz
-     # cpuid : GenuineIntel,6,38,1
-     # total memory : 1017184 kB
-     # cmdline : /usr/bin/perf record -g -a -e probe:do_fork sleep 30
-     # event : name = probe:do_fork, type = 2, config = 0x3b0, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern
-      = 0, id = { 5, 6 }
-     # HEADER_CPU_TOPOLOGY info available, use -I to display
-     # ========
-     #
-      matchbox-deskto  1197 [001] 34211.378318: do_fork: (c1028460)
-      matchbox-deskto  1295 [001] 34211.380388: do_fork: (c1028460)
-              pcmanfm  1296 [000] 34211.632350: do_fork: (c1028460)
-              pcmanfm  1296 [000] 34211.639917: do_fork: (c1028460)
-      matchbox-deskto  1197 [001] 34217.541603: do_fork: (c1028460)
-      matchbox-deskto  1299 [001] 34217.543584: do_fork: (c1028460)
-               gthumb  1300 [001] 34217.697451: do_fork: (c1028460)
-               gthumb  1300 [001] 34219.085734: do_fork: (c1028460)
-               gthumb  1300 [000] 34219.121351: do_fork: (c1028460)
-               gthumb  1300 [001] 34219.264551: do_fork: (c1028460)
-              pcmanfm  1296 [000] 34219.590380: do_fork: (c1028460)
-      matchbox-deskto  1197 [001] 34224.955965: do_fork: (c1028460)
-      matchbox-deskto  1306 [001] 34224.957972: do_fork: (c1028460)
-      matchbox-termin  1307 [000] 34225.038214: do_fork: (c1028460)
-      matchbox-termin  1307 [001] 34225.044218: do_fork: (c1028460)
-      matchbox-termin  1307 [000] 34225.046442: do_fork: (c1028460)
-      matchbox-deskto  1197 [001] 34237.112138: do_fork: (c1028460)
-      matchbox-deskto  1311 [001] 34237.114106: do_fork: (c1028460)
-                 gaku  1312 [000] 34237.202388: do_fork: (c1028460)
-                </literallayout>
-                And using 'perf report' on the same file, we can see the
-                callgraphs from starting a few programs during those 30 seconds:
-            </para>
-
-            <para>
-                <imagedata fileref="figures/perf-probe-do_fork-profile.png" width="6in" depth="7in" align="center" scalefit="1" />
-            </para>
-
-            <informalexample>
-                <emphasis>Tying it Together:</emphasis> The trace events subsystem accommodate static
-                and dynamic tracepoints in exactly the same way - there's no
-                difference as far as the infrastructure is concerned.  See the
-                ftrace section for more details on the trace event subsystem.
-            </informalexample>
-
-            <informalexample>
-                <emphasis>Tying it Together:</emphasis> Dynamic tracepoints are implemented under the
-                covers by kprobes and uprobes.  kprobes and uprobes are also used
-                by and in fact are the main focus of SystemTap.
-            </informalexample>
-        </section>
-    </section>
-
-    <section id='perf-documentation'>
-        <title>Documentation</title>
-
-        <para>
-            Online versions of the man pages for the commands discussed in this
-            section can be found here:
-            <itemizedlist>
-                <listitem><para>The <ulink url='http://linux.die.net/man/1/perf-stat'>'perf stat' manpage</ulink>.
-                    </para></listitem>
-                <listitem><para>The <ulink url='http://linux.die.net/man/1/perf-record'>'perf record' manpage</ulink>.
-                    </para></listitem>
-                <listitem><para>The <ulink url='http://linux.die.net/man/1/perf-report'>'perf report' manpage</ulink>.
-                    </para></listitem>
-                <listitem><para>The <ulink url='http://linux.die.net/man/1/perf-probe'>'perf probe' manpage</ulink>.
-                    </para></listitem>
-                <listitem><para>The <ulink url='http://linux.die.net/man/1/perf-script'>'perf script' manpage</ulink>.
-                    </para></listitem>
-                <listitem><para>Documentation on using the
-                    <ulink url='http://linux.die.net/man/1/perf-script-python'>'perf script' python binding</ulink>.
-                    </para></listitem>
-                <listitem><para>The top-level
-                    <ulink url='http://linux.die.net/man/1/perf'>perf(1) manpage</ulink>.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            Normally, you should be able to invoke the man pages via perf
-            itself e.g. 'perf help' or 'perf help record'.
-        </para>
-
-        <para>
-            However, by default Yocto doesn't install man pages, but perf
-            invokes the man pages for most help functionality. This is a bug
-            and is being addressed by a Yocto bug:
-            <ulink url='https://bugzilla.yoctoproject.org/show_bug.cgi?id=3388'>Bug 3388 - perf: enable man pages for basic 'help' functionality</ulink>.
-        </para>
-
-        <para>
-            The man pages in text form, along with some other files, such as
-            a set of examples, can be found in the 'perf' directory of the
-            kernel tree:
-            <literallayout class='monospaced'>
-     tools/perf/Documentation
-            </literallayout>
-            There's also a nice perf tutorial on the perf wiki that goes
-            into more detail than we do here in certain areas:
-            <ulink url='https://perf.wiki.kernel.org/index.php/Tutorial'>Perf Tutorial</ulink>
-        </para>
-    </section>
-</section>
-
-<section id='profile-manual-ftrace'>
-    <title>ftrace</title>
-
-    <para>
-        'ftrace' literally refers to the 'ftrace function tracer' but in
-        reality this encompasses a number of related tracers along with
-        the infrastructure that they all make use of.
-    </para>
-
-    <section id='ftrace-setup'>
-        <title>Setup</title>
-
-        <para>
-            For this section, we'll assume you've already performed the basic
-            setup outlined in the General Setup section.
-        </para>
-
-        <para>
-            ftrace, trace-cmd, and kernelshark run on the target system,
-            and are ready to go out-of-the-box - no additional setup is
-            necessary. For the rest of this section we assume you've ssh'ed
-            to the host and will be running ftrace on the target. kernelshark
-            is a GUI application and if you use the '-X' option to ssh you
-            can have the kernelshark GUI run on the target but display
-            remotely on the host if you want.
-        </para>
-    </section>
-
-    <section id='basic-ftrace-usage'>
-        <title>Basic ftrace usage</title>
-
-        <para>
-            'ftrace' essentially refers to everything included in
-            the /tracing directory of the mounted debugfs filesystem
-            (Yocto follows the standard convention and mounts it
-            at /sys/kernel/debug). Here's a listing of all the files
-            found in /sys/kernel/debug/tracing on a Yocto system:
-            <literallayout class='monospaced'>
-     root@sugarbay:/sys/kernel/debug/tracing# ls
-     README                      kprobe_events               trace
-     available_events            kprobe_profile              trace_clock
-     available_filter_functions  options                     trace_marker
-     available_tracers           per_cpu                     trace_options
-     buffer_size_kb              printk_formats              trace_pipe
-     buffer_total_size_kb        saved_cmdlines              tracing_cpumask
-     current_tracer              set_event                   tracing_enabled
-     dyn_ftrace_total_info       set_ftrace_filter           tracing_on
-     enabled_functions           set_ftrace_notrace          tracing_thresh
-     events                      set_ftrace_pid
-     free_buffer                 set_graph_function
-            </literallayout>
-            The files listed above are used for various purposes -
-            some relate directly to the tracers themselves, others are
-            used to set tracing options, and yet others actually contain
-            the tracing output when a tracer is in effect. Some of the
-            functions can be guessed from their names, others need
-            explanation; in any case, we'll cover some of the files we
-            see here below but for an explanation of the others, please
-            see the ftrace documentation.
-        </para>
-
-        <para>
-            We'll start by looking at some of the available built-in
-            tracers.
-        </para>
-
-        <para>
-            cat'ing the 'available_tracers' file lists the set of
-            available tracers:
-            <literallayout class='monospaced'>
-     root@sugarbay:/sys/kernel/debug/tracing# cat available_tracers
-     blk function_graph function nop
-            </literallayout>
-            The 'current_tracer' file contains the tracer currently in
-            effect:
-            <literallayout class='monospaced'>
-     root@sugarbay:/sys/kernel/debug/tracing# cat current_tracer
-     nop
-            </literallayout>
-            The above listing of current_tracer shows that
-            the 'nop' tracer is in effect, which is just another
-            way of saying that there's actually no tracer
-            currently in effect.
-        </para>
-
-        <para>
-            echo'ing one of the available_tracers into current_tracer
-            makes the specified tracer the current tracer:
-            <literallayout class='monospaced'>
-     root@sugarbay:/sys/kernel/debug/tracing# echo function > current_tracer
-     root@sugarbay:/sys/kernel/debug/tracing# cat current_tracer
-     function
-            </literallayout>
-            The above sets the current tracer to be the
-            'function tracer'. This tracer traces every function
-            call in the kernel and makes it available as the
-            contents of the 'trace' file. Reading the 'trace' file
-            lists the currently buffered function calls that have been
-            traced by the function tracer:
-            <literallayout class='monospaced'>
-     root@sugarbay:/sys/kernel/debug/tracing# cat trace | less
-
-     # tracer: function
-     #
-     # entries-in-buffer/entries-written: 310629/766471   #P:8
-     #
-     #                              _-----=&gt; irqs-off
-     #                             / _----=&gt; need-resched
-     #                            | / _---=&gt; hardirq/softirq
-     #                            || / _--=&gt; preempt-depth
-     #                            ||| /     delay
-     #           TASK-PID   CPU#  ||||    TIMESTAMP  FUNCTION
-     #              | |       |   ||||       |         |
-              &lt;idle&gt;-0     [004] d..1   470.867169: ktime_get_real &lt;-intel_idle
-              &lt;idle&gt;-0     [004] d..1   470.867170: getnstimeofday &lt;-ktime_get_real
-              &lt;idle&gt;-0     [004] d..1   470.867171: ns_to_timeval &lt;-intel_idle
-              &lt;idle&gt;-0     [004] d..1   470.867171: ns_to_timespec &lt;-ns_to_timeval
-              &lt;idle&gt;-0     [004] d..1   470.867172: smp_apic_timer_interrupt &lt;-apic_timer_interrupt
-              &lt;idle&gt;-0     [004] d..1   470.867172: native_apic_mem_write &lt;-smp_apic_timer_interrupt
-              &lt;idle&gt;-0     [004] d..1   470.867172: irq_enter &lt;-smp_apic_timer_interrupt
-              &lt;idle&gt;-0     [004] d..1   470.867172: rcu_irq_enter &lt;-irq_enter
-              &lt;idle&gt;-0     [004] d..1   470.867173: rcu_idle_exit_common.isra.33 &lt;-rcu_irq_enter
-              &lt;idle&gt;-0     [004] d..1   470.867173: local_bh_disable &lt;-irq_enter
-              &lt;idle&gt;-0     [004] d..1   470.867173: add_preempt_count &lt;-local_bh_disable
-              &lt;idle&gt;-0     [004] d.s1   470.867174: tick_check_idle &lt;-irq_enter
-              &lt;idle&gt;-0     [004] d.s1   470.867174: tick_check_oneshot_broadcast &lt;-tick_check_idle
-              &lt;idle&gt;-0     [004] d.s1   470.867174: ktime_get &lt;-tick_check_idle
-              &lt;idle&gt;-0     [004] d.s1   470.867174: tick_nohz_stop_idle &lt;-tick_check_idle
-              &lt;idle&gt;-0     [004] d.s1   470.867175: update_ts_time_stats &lt;-tick_nohz_stop_idle
-              &lt;idle&gt;-0     [004] d.s1   470.867175: nr_iowait_cpu &lt;-update_ts_time_stats
-              &lt;idle&gt;-0     [004] d.s1   470.867175: tick_do_update_jiffies64 &lt;-tick_check_idle
-              &lt;idle&gt;-0     [004] d.s1   470.867175: _raw_spin_lock &lt;-tick_do_update_jiffies64
-              &lt;idle&gt;-0     [004] d.s1   470.867176: add_preempt_count &lt;-_raw_spin_lock
-              &lt;idle&gt;-0     [004] d.s2   470.867176: do_timer &lt;-tick_do_update_jiffies64
-              &lt;idle&gt;-0     [004] d.s2   470.867176: _raw_spin_lock &lt;-do_timer
-              &lt;idle&gt;-0     [004] d.s2   470.867176: add_preempt_count &lt;-_raw_spin_lock
-              &lt;idle&gt;-0     [004] d.s3   470.867177: ntp_tick_length &lt;-do_timer
-              &lt;idle&gt;-0     [004] d.s3   470.867177: _raw_spin_lock_irqsave &lt;-ntp_tick_length
-              .
-              .
-              .
-            </literallayout>
-            Each line in the trace above shows what was happening in
-            the kernel on a given cpu, to the level of detail of
-            function calls. Each entry shows the function called,
-            followed by its caller (after the arrow).
-        </para>
-
-        <para>
-            The function tracer gives you an extremely detailed idea
-            of what the kernel was doing at the point in time the trace
-            was taken, and is a great way to learn about how the kernel
-            code works in a dynamic sense.
-        </para>
-
-        <informalexample>
-            <emphasis>Tying it Together:</emphasis> The ftrace function tracer is also
-            available from within perf, as the ftrace:function tracepoint.
-        </informalexample>
-
-        <para>
-            It is a little more difficult to follow the call chains than
-            it needs to be - luckily there's a variant of the function
-            tracer that displays the callchains explicitly, called the
-            'function_graph' tracer:
-            <literallayout class='monospaced'>
-     root@sugarbay:/sys/kernel/debug/tracing# echo function_graph &gt; current_tracer
-     root@sugarbay:/sys/kernel/debug/tracing# cat trace | less
-
-      tracer: function_graph
-
-      CPU  DURATION                  FUNCTION CALLS
-      |     |   |                     |   |   |   |
-     7)   0.046 us    |      pick_next_task_fair();
-     7)   0.043 us    |      pick_next_task_stop();
-     7)   0.042 us    |      pick_next_task_rt();
-     7)   0.032 us    |      pick_next_task_fair();
-     7)   0.030 us    |      pick_next_task_idle();
-     7)               |      _raw_spin_unlock_irq() {
-     7)   0.033 us    |        sub_preempt_count();
-     7)   0.258 us    |      }
-     7)   0.032 us    |      sub_preempt_count();
-     7) + 13.341 us   |    } /* __schedule */
-     7)   0.095 us    |  } /* sub_preempt_count */
-     7)               |  schedule() {
-     7)               |    __schedule() {
-     7)   0.060 us    |      add_preempt_count();
-     7)   0.044 us    |      rcu_note_context_switch();
-     7)               |      _raw_spin_lock_irq() {
-     7)   0.033 us    |        add_preempt_count();
-     7)   0.247 us    |      }
-     7)               |      idle_balance() {
-     7)               |        _raw_spin_unlock() {
-     7)   0.031 us    |          sub_preempt_count();
-     7)   0.246 us    |        }
-     7)               |        update_shares() {
-     7)   0.030 us    |          __rcu_read_lock();
-     7)   0.029 us    |          __rcu_read_unlock();
-     7)   0.484 us    |        }
-     7)   0.030 us    |        __rcu_read_lock();
-     7)               |        load_balance() {
-     7)               |          find_busiest_group() {
-     7)   0.031 us    |            idle_cpu();
-     7)   0.029 us    |            idle_cpu();
-     7)   0.035 us    |            idle_cpu();
-     7)   0.906 us    |          }
-     7)   1.141 us    |        }
-     7)   0.022 us    |        msecs_to_jiffies();
-     7)               |        load_balance() {
-     7)               |          find_busiest_group() {
-     7)   0.031 us    |            idle_cpu();
-     .
-     .
-     .
-     4)   0.062 us    |        msecs_to_jiffies();
-     4)   0.062 us    |        __rcu_read_unlock();
-     4)               |        _raw_spin_lock() {
-     4)   0.073 us    |          add_preempt_count();
-     4)   0.562 us    |        }
-     4) + 17.452 us   |      }
-     4)   0.108 us    |      put_prev_task_fair();
-     4)   0.102 us    |      pick_next_task_fair();
-     4)   0.084 us    |      pick_next_task_stop();
-     4)   0.075 us    |      pick_next_task_rt();
-     4)   0.062 us    |      pick_next_task_fair();
-     4)   0.066 us    |      pick_next_task_idle();
-     ------------------------------------------
-     4)   kworker-74   =&gt;    &lt;idle&gt;-0
-     ------------------------------------------
-
-     4)               |      finish_task_switch() {
-     4)               |        _raw_spin_unlock_irq() {
-     4)   0.100 us    |          sub_preempt_count();
-     4)   0.582 us    |        }
-     4)   1.105 us    |      }
-     4)   0.088 us    |      sub_preempt_count();
-     4) ! 100.066 us  |    }
-     .
-     .
-     .
-     3)               |  sys_ioctl() {
-     3)   0.083 us    |    fget_light();
-     3)               |    security_file_ioctl() {
-     3)   0.066 us    |      cap_file_ioctl();
-     3)   0.562 us    |    }
-     3)               |    do_vfs_ioctl() {
-     3)               |      drm_ioctl() {
-     3)   0.075 us    |        drm_ut_debug_printk();
-     3)               |        i915_gem_pwrite_ioctl() {
-     3)               |          i915_mutex_lock_interruptible() {
-     3)   0.070 us    |            mutex_lock_interruptible();
-     3)   0.570 us    |          }
-     3)               |          drm_gem_object_lookup() {
-     3)               |            _raw_spin_lock() {
-     3)   0.080 us    |              add_preempt_count();
-     3)   0.620 us    |            }
-     3)               |            _raw_spin_unlock() {
-     3)   0.085 us    |              sub_preempt_count();
-     3)   0.562 us    |            }
-     3)   2.149 us    |          }
-     3)   0.133 us    |          i915_gem_object_pin();
-     3)               |          i915_gem_object_set_to_gtt_domain() {
-     3)   0.065 us    |            i915_gem_object_flush_gpu_write_domain();
-     3)   0.065 us    |            i915_gem_object_wait_rendering();
-     3)   0.062 us    |            i915_gem_object_flush_cpu_write_domain();
-     3)   1.612 us    |          }
-     3)               |          i915_gem_object_put_fence() {
-     3)   0.097 us    |            i915_gem_object_flush_fence.constprop.36();
-     3)   0.645 us    |          }
-     3)   0.070 us    |          add_preempt_count();
-     3)   0.070 us    |          sub_preempt_count();
-     3)   0.073 us    |          i915_gem_object_unpin();
-     3)   0.068 us    |          mutex_unlock();
-     3)   9.924 us    |        }
-     3) + 11.236 us   |      }
-     3) + 11.770 us   |    }
-     3) + 13.784 us   |  }
-     3)               |  sys_ioctl() {
-            </literallayout>
-            As you can see, the function_graph display is much easier to
-            follow. Also note that in addition to the function calls and
-            associated braces, other events such as scheduler events
-            are displayed in context. In fact, you can freely include
-            any tracepoint available in the trace events subsystem described
-            in the next section by simply enabling those events, and they'll
-            appear in context in the function graph display. Quite a
-            powerful tool for understanding kernel dynamics.
-        </para>
-
-        <para>
-            Also notice that there are various annotations on the left
-            hand side of the display. For example if the total time it
-            took for a given function to execute is above a certain
-            threshold, an exclamation point or plus sign appears on the
-            left hand side. Please see the ftrace documentation for
-            details on all these fields.
-        </para>
-    </section>
-
-    <section id='the-trace-events-subsystem'>
-        <title>The 'trace events' Subsystem</title>
-
-        <para>
-            One especially important directory contained within
-            the /sys/kernel/debug/tracing directory is the 'events'
-            subdirectory, which contains representations of every
-            tracepoint in the system. Listing out the contents of
-            the 'events' subdirectory, we see mainly another set of
-            subdirectories:
-            <literallayout class='monospaced'>
-     root@sugarbay:/sys/kernel/debug/tracing# cd events
-     root@sugarbay:/sys/kernel/debug/tracing/events# ls -al
-     drwxr-xr-x   38 root     root             0 Nov 14 23:19 .
-     drwxr-xr-x    5 root     root             0 Nov 14 23:19 ..
-     drwxr-xr-x   19 root     root             0 Nov 14 23:19 block
-     drwxr-xr-x   32 root     root             0 Nov 14 23:19 btrfs
-     drwxr-xr-x    5 root     root             0 Nov 14 23:19 drm
-     -rw-r--r--    1 root     root             0 Nov 14 23:19 enable
-     drwxr-xr-x   40 root     root             0 Nov 14 23:19 ext3
-     drwxr-xr-x   79 root     root             0 Nov 14 23:19 ext4
-     drwxr-xr-x   14 root     root             0 Nov 14 23:19 ftrace
-     drwxr-xr-x    8 root     root             0 Nov 14 23:19 hda
-     -r--r--r--    1 root     root             0 Nov 14 23:19 header_event
-     -r--r--r--    1 root     root             0 Nov 14 23:19 header_page
-     drwxr-xr-x   25 root     root             0 Nov 14 23:19 i915
-     drwxr-xr-x    7 root     root             0 Nov 14 23:19 irq
-     drwxr-xr-x   12 root     root             0 Nov 14 23:19 jbd
-     drwxr-xr-x   14 root     root             0 Nov 14 23:19 jbd2
-     drwxr-xr-x   14 root     root             0 Nov 14 23:19 kmem
-     drwxr-xr-x    7 root     root             0 Nov 14 23:19 module
-     drwxr-xr-x    3 root     root             0 Nov 14 23:19 napi
-     drwxr-xr-x    6 root     root             0 Nov 14 23:19 net
-     drwxr-xr-x    3 root     root             0 Nov 14 23:19 oom
-     drwxr-xr-x   12 root     root             0 Nov 14 23:19 power
-     drwxr-xr-x    3 root     root             0 Nov 14 23:19 printk
-     drwxr-xr-x    8 root     root             0 Nov 14 23:19 random
-     drwxr-xr-x    4 root     root             0 Nov 14 23:19 raw_syscalls
-     drwxr-xr-x    3 root     root             0 Nov 14 23:19 rcu
-     drwxr-xr-x    6 root     root             0 Nov 14 23:19 rpm
-     drwxr-xr-x   20 root     root             0 Nov 14 23:19 sched
-     drwxr-xr-x    7 root     root             0 Nov 14 23:19 scsi
-     drwxr-xr-x    4 root     root             0 Nov 14 23:19 signal
-     drwxr-xr-x    5 root     root             0 Nov 14 23:19 skb
-     drwxr-xr-x    4 root     root             0 Nov 14 23:19 sock
-     drwxr-xr-x   10 root     root             0 Nov 14 23:19 sunrpc
-     drwxr-xr-x  538 root     root             0 Nov 14 23:19 syscalls
-     drwxr-xr-x    4 root     root             0 Nov 14 23:19 task
-     drwxr-xr-x   14 root     root             0 Nov 14 23:19 timer
-     drwxr-xr-x    3 root     root             0 Nov 14 23:19 udp
-     drwxr-xr-x   21 root     root             0 Nov 14 23:19 vmscan
-     drwxr-xr-x    3 root     root             0 Nov 14 23:19 vsyscall
-     drwxr-xr-x    6 root     root             0 Nov 14 23:19 workqueue
-     drwxr-xr-x   26 root     root             0 Nov 14 23:19 writeback
-            </literallayout>
-            Each one of these subdirectories corresponds to a
-            'subsystem' and contains yet again more subdirectories,
-            each one of those finally corresponding to a tracepoint.
-            For example, here are the contents of the 'kmem' subsystem:
-            <literallayout class='monospaced'>
-     root@sugarbay:/sys/kernel/debug/tracing/events# cd kmem
-     root@sugarbay:/sys/kernel/debug/tracing/events/kmem# ls -al
-     drwxr-xr-x   14 root     root             0 Nov 14 23:19 .
-     drwxr-xr-x   38 root     root             0 Nov 14 23:19 ..
-     -rw-r--r--    1 root     root             0 Nov 14 23:19 enable
-     -rw-r--r--    1 root     root             0 Nov 14 23:19 filter
-     drwxr-xr-x    2 root     root             0 Nov 14 23:19 kfree
-     drwxr-xr-x    2 root     root             0 Nov 14 23:19 kmalloc
-     drwxr-xr-x    2 root     root             0 Nov 14 23:19 kmalloc_node
-     drwxr-xr-x    2 root     root             0 Nov 14 23:19 kmem_cache_alloc
-     drwxr-xr-x    2 root     root             0 Nov 14 23:19 kmem_cache_alloc_node
-     drwxr-xr-x    2 root     root             0 Nov 14 23:19 kmem_cache_free
-     drwxr-xr-x    2 root     root             0 Nov 14 23:19 mm_page_alloc
-     drwxr-xr-x    2 root     root             0 Nov 14 23:19 mm_page_alloc_extfrag
-     drwxr-xr-x    2 root     root             0 Nov 14 23:19 mm_page_alloc_zone_locked
-     drwxr-xr-x    2 root     root             0 Nov 14 23:19 mm_page_free
-     drwxr-xr-x    2 root     root             0 Nov 14 23:19 mm_page_free_batched
-     drwxr-xr-x    2 root     root             0 Nov 14 23:19 mm_page_pcpu_drain
-            </literallayout>
-            Let's see what's inside the subdirectory for a specific
-            tracepoint, in this case the one for kmalloc:
-            <literallayout class='monospaced'>
-     root@sugarbay:/sys/kernel/debug/tracing/events/kmem# cd kmalloc
-     root@sugarbay:/sys/kernel/debug/tracing/events/kmem/kmalloc# ls -al
-     drwxr-xr-x    2 root     root             0 Nov 14 23:19 .
-     drwxr-xr-x   14 root     root             0 Nov 14 23:19 ..
-     -rw-r--r--    1 root     root             0 Nov 14 23:19 enable
-     -rw-r--r--    1 root     root             0 Nov 14 23:19 filter
-     -r--r--r--    1 root     root             0 Nov 14 23:19 format
-     -r--r--r--    1 root     root             0 Nov 14 23:19 id
-            </literallayout>
-            The 'format' file for the tracepoint describes the event
-            in memory, which is used by the various tracing tools
-            that now make use of these tracepoint to parse the event
-            and make sense of it, along with a 'print fmt' field that
-            allows tools like ftrace to display the event as text.
-            Here's what the format of the kmalloc event looks like:
-            <literallayout class='monospaced'>
-     root@sugarbay:/sys/kernel/debug/tracing/events/kmem/kmalloc# cat format
-     name: kmalloc
-     ID: 313
-     format:
-	     field:unsigned short common_type;	offset:0;	size:2;	signed:0;
-	     field:unsigned char common_flags;	offset:2;	size:1;	signed:0;
-	     field:unsigned char common_preempt_count;	offset:3;	size:1;	signed:0;
-	     field:int common_pid;	offset:4;	size:4;	signed:1;
-	     field:int common_padding;	offset:8;	size:4;	signed:1;
-
-	     field:unsigned long call_site;	offset:16;	size:8;	signed:0;
-	     field:const void * ptr;	offset:24;	size:8;	signed:0;
-	     field:size_t bytes_req;	offset:32;	size:8;	signed:0;
-	     field:size_t bytes_alloc;	offset:40;	size:8;	signed:0;
-	     field:gfp_t gfp_flags;	offset:48;	size:4;	signed:0;
-
-     print fmt: "call_site=%lx ptr=%p bytes_req=%zu bytes_alloc=%zu gfp_flags=%s", REC->call_site, REC->ptr, REC->bytes_req, REC->bytes_alloc,
-     (REC->gfp_flags) ? __print_flags(REC->gfp_flags, "|", {(unsigned long)(((( gfp_t)0x10u) | (( gfp_t)0x40u) | (( gfp_t)0x80u) | ((
-     gfp_t)0x20000u) | (( gfp_t)0x02u) | (( gfp_t)0x08u)) | (( gfp_t)0x4000u) | (( gfp_t)0x10000u) | (( gfp_t)0x1000u) | (( gfp_t)0x200u) | ((
-     gfp_t)0x400000u)), "GFP_TRANSHUGE"}, {(unsigned long)((( gfp_t)0x10u) | (( gfp_t)0x40u) | (( gfp_t)0x80u) | (( gfp_t)0x20000u) | ((
-     gfp_t)0x02u) | (( gfp_t)0x08u)), "GFP_HIGHUSER_MOVABLE"}, {(unsigned long)((( gfp_t)0x10u) | (( gfp_t)0x40u) | (( gfp_t)0x80u) | ((
-     gfp_t)0x20000u) | (( gfp_t)0x02u)), "GFP_HIGHUSER"}, {(unsigned long)((( gfp_t)0x10u) | (( gfp_t)0x40u) | (( gfp_t)0x80u) | ((
-     gfp_t)0x20000u)), "GFP_USER"}, {(unsigned long)((( gfp_t)0x10u) | (( gfp_t)0x40u) | (( gfp_t)0x80u) | (( gfp_t)0x80000u)), GFP_TEMPORARY"},
-     {(unsigned long)((( gfp_t)0x10u) | (( gfp_t)0x40u) | (( gfp_t)0x80u)), "GFP_KERNEL"}, {(unsigned long)((( gfp_t)0x10u) | (( gfp_t)0x40u)),
-     "GFP_NOFS"}, {(unsigned long)((( gfp_t)0x20u)), "GFP_ATOMIC"}, {(unsigned long)((( gfp_t)0x10u)), "GFP_NOIO"}, {(unsigned long)((
-     gfp_t)0x20u), "GFP_HIGH"}, {(unsigned long)(( gfp_t)0x10u), "GFP_WAIT"}, {(unsigned long)(( gfp_t)0x40u), "GFP_IO"}, {(unsigned long)((
-     gfp_t)0x100u), "GFP_COLD"}, {(unsigned long)(( gfp_t)0x200u), "GFP_NOWARN"}, {(unsigned long)(( gfp_t)0x400u), "GFP_REPEAT"}, {(unsigned
-     long)(( gfp_t)0x800u), "GFP_NOFAIL"}, {(unsigned long)(( gfp_t)0x1000u), "GFP_NORETRY"},      {(unsigned long)(( gfp_t)0x4000u), "GFP_COMP"},
-     {(unsigned long)(( gfp_t)0x8000u), "GFP_ZERO"}, {(unsigned long)(( gfp_t)0x10000u), "GFP_NOMEMALLOC"}, {(unsigned long)(( gfp_t)0x20000u),
-     "GFP_HARDWALL"}, {(unsigned long)(( gfp_t)0x40000u), "GFP_THISNODE"}, {(unsigned long)(( gfp_t)0x80000u), "GFP_RECLAIMABLE"}, {(unsigned
-     long)(( gfp_t)0x08u), "GFP_MOVABLE"}, {(unsigned long)(( gfp_t)0), "GFP_NOTRACK"}, {(unsigned long)(( gfp_t)0x400000u), "GFP_NO_KSWAPD"},
-     {(unsigned long)(( gfp_t)0x800000u), "GFP_OTHER_NODE"} ) : "GFP_NOWAIT"
-            </literallayout>
-            The 'enable' file in the tracepoint directory is what allows
-            the user (or tools such as trace-cmd) to actually turn the
-            tracepoint on and off. When enabled, the corresponding
-            tracepoint will start appearing in the ftrace 'trace'
-            file described previously. For example, this turns on the
-            kmalloc tracepoint:
-            <literallayout class='monospaced'>
-     root@sugarbay:/sys/kernel/debug/tracing/events/kmem/kmalloc# echo 1 > enable
-            </literallayout>
-            At the moment, we're not interested in the function tracer or
-            some other tracer that might be in effect, so we first turn
-            it off, but if we do that, we still need to turn tracing on in
-            order to see the events in the output buffer:
-            <literallayout class='monospaced'>
-     root@sugarbay:/sys/kernel/debug/tracing# echo nop > current_tracer
-     root@sugarbay:/sys/kernel/debug/tracing# echo 1 > tracing_on
-            </literallayout>
-            Now, if we look at the the 'trace' file, we see nothing
-            but the kmalloc events we just turned on:
-            <literallayout class='monospaced'>
-     root@sugarbay:/sys/kernel/debug/tracing# cat trace | less
-     # tracer: nop
-     #
-     # entries-in-buffer/entries-written: 1897/1897   #P:8
-     #
-     #                              _-----=&gt; irqs-off
-     #                             / _----=&gt; need-resched
-     #                            | / _---=&gt; hardirq/softirq
-     #                            || / _--=&gt; preempt-depth
-     #                            ||| /     delay
-     #           TASK-PID   CPU#  ||||    TIMESTAMP  FUNCTION
-     #              | |       |   ||||       |         |
-            dropbear-1465  [000] ...1 18154.620753: kmalloc: call_site=ffffffff816650d4 ptr=ffff8800729c3000 bytes_req=2048 bytes_alloc=2048 gfp_flags=GFP_KERNEL
-              &lt;idle&gt;-0     [000] ..s3 18154.621640: kmalloc: call_site=ffffffff81619b36 ptr=ffff88006d555800 bytes_req=512 bytes_alloc=512 gfp_flags=GFP_ATOMIC
-              &lt;idle&gt;-0     [000] ..s3 18154.621656: kmalloc: call_site=ffffffff81619b36 ptr=ffff88006d555800 bytes_req=512 bytes_alloc=512 gfp_flags=GFP_ATOMIC
-     matchbox-termin-1361  [001] ...1 18154.755472: kmalloc: call_site=ffffffff81614050 ptr=ffff88006d5f0e00 bytes_req=512 bytes_alloc=512 gfp_flags=GFP_KERNEL|GFP_REPEAT
-                Xorg-1264  [002] ...1 18154.755581: kmalloc: call_site=ffffffff8141abe8 ptr=ffff8800734f4cc0 bytes_req=168 bytes_alloc=192 gfp_flags=GFP_KERNEL|GFP_NOWARN|GFP_NORETRY
-                Xorg-1264  [002] ...1 18154.755583: kmalloc: call_site=ffffffff814192a3 ptr=ffff88001f822520 bytes_req=24 bytes_alloc=32 gfp_flags=GFP_KERNEL|GFP_ZERO
-                Xorg-1264  [002] ...1 18154.755589: kmalloc: call_site=ffffffff81419edb ptr=ffff8800721a2f00 bytes_req=64 bytes_alloc=64 gfp_flags=GFP_KERNEL|GFP_ZERO
-     matchbox-termin-1361  [001] ...1 18155.354594: kmalloc: call_site=ffffffff81614050 ptr=ffff88006db35400 bytes_req=576 bytes_alloc=1024 gfp_flags=GFP_KERNEL|GFP_REPEAT
-                Xorg-1264  [002] ...1 18155.354703: kmalloc: call_site=ffffffff8141abe8 ptr=ffff8800734f4cc0 bytes_req=168 bytes_alloc=192 gfp_flags=GFP_KERNEL|GFP_NOWARN|GFP_NORETRY
-                Xorg-1264  [002] ...1 18155.354705: kmalloc: call_site=ffffffff814192a3 ptr=ffff88001f822520 bytes_req=24 bytes_alloc=32 gfp_flags=GFP_KERNEL|GFP_ZERO
-                Xorg-1264  [002] ...1 18155.354711: kmalloc: call_site=ffffffff81419edb ptr=ffff8800721a2f00 bytes_req=64 bytes_alloc=64 gfp_flags=GFP_KERNEL|GFP_ZERO
-              &lt;idle&gt;-0     [000] ..s3 18155.673319: kmalloc: call_site=ffffffff81619b36 ptr=ffff88006d555800 bytes_req=512 bytes_alloc=512 gfp_flags=GFP_ATOMIC
-            dropbear-1465  [000] ...1 18155.673525: kmalloc: call_site=ffffffff816650d4 ptr=ffff8800729c3000 bytes_req=2048 bytes_alloc=2048 gfp_flags=GFP_KERNEL
-              &lt;idle&gt;-0     [000] ..s3 18155.674821: kmalloc: call_site=ffffffff81619b36 ptr=ffff88006d554800 bytes_req=512 bytes_alloc=512 gfp_flags=GFP_ATOMIC
-              &lt;idle&gt;-0     [000] ..s3 18155.793014: kmalloc: call_site=ffffffff81619b36 ptr=ffff88006d554800 bytes_req=512 bytes_alloc=512 gfp_flags=GFP_ATOMIC
-            dropbear-1465  [000] ...1 18155.793219: kmalloc: call_site=ffffffff816650d4 ptr=ffff8800729c3000 bytes_req=2048 bytes_alloc=2048 gfp_flags=GFP_KERNEL
-              &lt;idle&gt;-0     [000] ..s3 18155.794147: kmalloc: call_site=ffffffff81619b36 ptr=ffff88006d555800 bytes_req=512 bytes_alloc=512 gfp_flags=GFP_ATOMIC
-              &lt;idle&gt;-0     [000] ..s3 18155.936705: kmalloc: call_site=ffffffff81619b36 ptr=ffff88006d555800 bytes_req=512 bytes_alloc=512 gfp_flags=GFP_ATOMIC
-            dropbear-1465  [000] ...1 18155.936910: kmalloc: call_site=ffffffff816650d4 ptr=ffff8800729c3000 bytes_req=2048 bytes_alloc=2048 gfp_flags=GFP_KERNEL
-              &lt;idle&gt;-0     [000] ..s3 18155.937869: kmalloc: call_site=ffffffff81619b36 ptr=ffff88006d554800 bytes_req=512 bytes_alloc=512 gfp_flags=GFP_ATOMIC
-     matchbox-termin-1361  [001] ...1 18155.953667: kmalloc: call_site=ffffffff81614050 ptr=ffff88006d5f2000 bytes_req=512 bytes_alloc=512 gfp_flags=GFP_KERNEL|GFP_REPEAT
-                Xorg-1264  [002] ...1 18155.953775: kmalloc: call_site=ffffffff8141abe8 ptr=ffff8800734f4cc0 bytes_req=168 bytes_alloc=192 gfp_flags=GFP_KERNEL|GFP_NOWARN|GFP_NORETRY
-                Xorg-1264  [002] ...1 18155.953777: kmalloc: call_site=ffffffff814192a3 ptr=ffff88001f822520 bytes_req=24 bytes_alloc=32 gfp_flags=GFP_KERNEL|GFP_ZERO
-                Xorg-1264  [002] ...1 18155.953783: kmalloc: call_site=ffffffff81419edb ptr=ffff8800721a2f00 bytes_req=64 bytes_alloc=64 gfp_flags=GFP_KERNEL|GFP_ZERO
-              &lt;idle&gt;-0     [000] ..s3 18156.176053: kmalloc: call_site=ffffffff81619b36 ptr=ffff88006d554800 bytes_req=512 bytes_alloc=512 gfp_flags=GFP_ATOMIC
-            dropbear-1465  [000] ...1 18156.176257: kmalloc: call_site=ffffffff816650d4 ptr=ffff8800729c3000 bytes_req=2048 bytes_alloc=2048 gfp_flags=GFP_KERNEL
-              &lt;idle&gt;-0     [000] ..s3 18156.177717: kmalloc: call_site=ffffffff81619b36 ptr=ffff88006d555800 bytes_req=512 bytes_alloc=512 gfp_flags=GFP_ATOMIC
-              &lt;idle&gt;-0     [000] ..s3 18156.399229: kmalloc: call_site=ffffffff81619b36 ptr=ffff88006d555800 bytes_req=512 bytes_alloc=512 gfp_flags=GFP_ATOMIC
-            dropbear-1465  [000] ...1 18156.399434: kmalloc: call_site=ffffffff816650d4 ptr=ffff8800729c3000 bytes_http://rostedt.homelinux.com/kernelshark/req=2048 bytes_alloc=2048 gfp_flags=GFP_KERNEL
-              &lt;idle&gt;-0     [000] ..s3 18156.400660: kmalloc: call_site=ffffffff81619b36 ptr=ffff88006d554800 bytes_req=512 bytes_alloc=512 gfp_flags=GFP_ATOMIC
-     matchbox-termin-1361  [001] ...1 18156.552800: kmalloc: call_site=ffffffff81614050 ptr=ffff88006db34800 bytes_req=576 bytes_alloc=1024 gfp_flags=GFP_KERNEL|GFP_REPEAT
-            </literallayout>
-            To again disable the kmalloc event, we need to send 0 to the
-            enable file:
-            <literallayout class='monospaced'>
-     root@sugarbay:/sys/kernel/debug/tracing/events/kmem/kmalloc# echo 0 > enable
-            </literallayout>
-            You can enable any number of events or complete subsystems
-            (by using the 'enable' file in the subsystem directory) and
-            get an arbitrarily fine-grained idea of what's going on in the
-            system by enabling as many of the appropriate tracepoints
-            as applicable.
-        </para>
-
-        <para>
-            A number of the tools described in this HOWTO do just that,
-            including trace-cmd and kernelshark in the next section.
-        </para>
-
-        <informalexample>
-            <emphasis>Tying it Together:</emphasis> These tracepoints and their representation
-            are used not only by ftrace,  but by many of the other tools
-            covered in this document and they form a central point of
-            integration for the various tracers available in Linux.
-            They form a central part of the instrumentation for the
-            following tools: perf, lttng, ftrace, blktrace and SystemTap
-        </informalexample>
-
-        <informalexample>
-            <emphasis>Tying it Together:</emphasis> Eventually all the special-purpose tracers
-            currently available in /sys/kernel/debug/tracing will be
-            removed and replaced with equivalent tracers based on the
-            'trace events' subsystem.
-        </informalexample>
-    </section>
-
-    <section id='trace-cmd-kernelshark'>
-        <title>trace-cmd/kernelshark</title>
-
-        <para>
-            trace-cmd is essentially an extensive command-line 'wrapper'
-            interface that hides the details of all the individual files
-            in /sys/kernel/debug/tracing, allowing users to specify
-            specific particular events within the
-            /sys/kernel/debug/tracing/events/ subdirectory and to collect
-            traces and avoid having to deal with those details directly.
-        </para>
-
-        <para>
-            As yet another layer on top of that, kernelshark provides a GUI
-            that allows users to start and stop traces and specify sets
-            of events using an intuitive interface, and view the
-            output as both trace events and as a per-CPU graphical
-            display. It directly uses 'trace-cmd' as the plumbing
-            that accomplishes all that underneath the covers (and
-            actually displays the trace-cmd command it uses, as we'll see).
-        </para>
-
-        <para>
-            To start a trace using kernelshark, first start kernelshark:
-            <literallayout class='monospaced'>
-     root@sugarbay:~# kernelshark
-            </literallayout>
-            Then bring up the 'Capture' dialog by choosing from the
-            kernelshark menu:
-            <literallayout class='monospaced'>
-     Capture | Record
-            </literallayout>
-            That will display the following dialog, which allows you to
-            choose one or more events (or even one or more complete
-            subsystems) to trace:
-        </para>
-
-        <para>
-            <imagedata fileref="figures/kernelshark-choose-events.png" width="6in" depth="6in" align="center" scalefit="1" />
-        </para>
-
-        <para>
-            Note that these are exactly the same sets of events described
-            in the previous trace events subsystem section, and in fact
-            is where trace-cmd gets them for kernelshark.
-        </para>
-
-        <para>
-            In the above screenshot, we've decided to explore the
-            graphics subsystem a bit and so have chosen to trace all
-            the tracepoints contained within the 'i915' and 'drm'
-            subsystems.
-        </para>
-
-        <para>
-            After doing that, we can start and stop the trace using
-            the 'Run' and 'Stop' button on the lower right corner of
-            the dialog (the same button will turn into the 'Stop'
-            button after the trace has started):
-        </para>
-
-        <para>
-            <imagedata fileref="figures/kernelshark-output-display.png" width="6in" depth="6in" align="center" scalefit="1" />
-        </para>
-
-        <para>
-            Notice that the right-hand pane shows the exact trace-cmd
-            command-line that's used to run the trace, along with the
-            results of the trace-cmd run.
-        </para>
-
-        <para>
-            Once the 'Stop' button is pressed, the graphical view magically
-            fills up with a colorful per-cpu display of the trace data,
-            along with the detailed event listing below that:
-        </para>
-
-        <para>
-            <imagedata fileref="figures/kernelshark-i915-display.png" width="6in" depth="7in" align="center" scalefit="1" />
-        </para>
-
-        <para>
-            Here's another example, this time a display resulting
-            from tracing 'all events':
-        </para>
-
-        <para>
-            <imagedata fileref="figures/kernelshark-all.png" width="6in" depth="7in" align="center" scalefit="1" />
-        </para>
-
-        <para>
-            The tool is pretty self-explanatory, but for more detailed
-            information on navigating through the data, see the
-            <ulink url='http://rostedt.homelinux.com/kernelshark/'>kernelshark website</ulink>.
-        </para>
-    </section>
-
-    <section id='ftrace-documentation'>
-        <title>Documentation</title>
-
-        <para>
-            The documentation for ftrace can be found in the kernel
-            Documentation directory:
-            <literallayout class='monospaced'>
-     Documentation/trace/ftrace.txt
-            </literallayout>
-            The documentation for the trace event subsystem can also
-            be found in the kernel Documentation directory:
-            <literallayout class='monospaced'>
-     Documentation/trace/events.txt
-            </literallayout>
-            There is a nice series of articles on using
-            ftrace and trace-cmd at LWN:
-            <itemizedlist>
-                <listitem><para><ulink url='http://lwn.net/Articles/365835/'>Debugging the kernel using Ftrace - part 1</ulink>
-                    </para></listitem>
-                <listitem><para><ulink url='http://lwn.net/Articles/366796/'>Debugging the kernel using Ftrace - part 2</ulink>
-                    </para></listitem>
-                <listitem><para><ulink url='http://lwn.net/Articles/370423/'>Secrets of the Ftrace function tracer</ulink>
-                    </para></listitem>
-                <listitem><para><ulink url='https://lwn.net/Articles/410200/'>trace-cmd: A front-end for Ftrace</ulink>
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            There's more detailed documentation kernelshark usage here:
-            <ulink url='http://rostedt.homelinux.com/kernelshark/'>KernelShark</ulink>
-        </para>
-
-        <para>
-            An amusing yet useful README (a tracing mini-HOWTO) can be
-            found in /sys/kernel/debug/tracing/README.
-        </para>
-    </section>
-</section>
-
-<section id='profile-manual-systemtap'>
-    <title>systemtap</title>
-
-    <para>
-        SystemTap is a system-wide script-based tracing and profiling tool.
-    </para>
-
-    <para>
-        SystemTap scripts are C-like programs that are executed in the
-        kernel to gather/print/aggregate data extracted from the context
-        they end up being invoked under.
-    </para>
-
-    <para>
-        For example, this probe from the
-        <ulink url='http://sourceware.org/systemtap/tutorial/'>SystemTap tutorial</ulink>
-        simply prints a line every time any process on the system open()s
-        a file. For each line, it prints the executable name of the
-        program that opened the file, along with its PID, and the name
-        of the file it opened (or tried to open), which it extracts
-        from the open syscall's argstr.
-        <literallayout class='monospaced'>
-     probe syscall.open
-     {
-             printf ("%s(%d) open (%s)\n", execname(), pid(), argstr)
-     }
-
-     probe timer.ms(4000) # after 4 seconds
-     {
-             exit ()
-     }
-        </literallayout>
-        Normally, to execute this probe, you'd simply install
-        systemtap on the system you want to probe, and directly run
-        the probe on that system e.g. assuming the name of the file
-        containing the above text is trace_open.stp:
-        <literallayout class='monospaced'>
-     # stap trace_open.stp
-        </literallayout>
-        What systemtap does under the covers to run this probe is 1)
-        parse and convert the probe to an equivalent 'C' form, 2)
-        compile the 'C' form into a kernel module, 3) insert the
-        module into the kernel, which arms it, and 4) collect the data
-        generated by the probe and display it to the user.
-     </para>
-
-     <para>
-        In order to accomplish steps 1 and 2, the 'stap' program needs
-        access to the kernel build system that produced the kernel
-        that the probed system is running. In the case of a typical
-        embedded system (the 'target'), the kernel build system
-        unfortunately isn't typically part of the image running on
-        the target. It is normally available on the 'host' system
-        that produced the target image however; in such cases,
-        steps 1 and 2 are executed on the host system, and steps
-        3 and 4 are executed on the target system, using only the
-        systemtap 'runtime'.
-    </para>
-
-    <para>
-        The systemtap support in Yocto assumes that only steps
-        3 and 4 are run on the target; it is possible to do
-        everything on the target, but this section assumes only
-        the typical embedded use-case.
-    </para>
-
-    <para>
-        So basically what you need to do in order to run a systemtap
-        script on the target is to 1) on the host system, compile the
-        probe into a kernel module that makes sense to the target, 2)
-        copy the module onto the target system and 3) insert the
-        module into the target kernel, which arms it, and 4) collect
-        the data generated by the probe and display it to the user.
-    </para>
-
-    <section id='systemtap-setup'>
-        <title>Setup</title>
-
-        <para>
-            Those are a lot of steps and a lot of details, but
-            fortunately Yocto includes a script called 'crosstap'
-            that will take care of those details, allowing you to
-            simply execute a systemtap script on the remote target,
-            with arguments if necessary.
-        </para>
-
-        <para>
-            In order to do this from a remote host, however, you
-            need to have access to the build for the image you
-            booted. The 'crosstap' script provides details on how
-            to do this if you run the script on the host without having
-            done a build:
-            <note>
-                SystemTap, which uses 'crosstap', assumes you can establish an
-                ssh connection to the remote target.
-                Please refer to the crosstap wiki page for details on verifying
-                ssh connections at
-                <ulink url='https://wiki.yoctoproject.org/wiki/Tracing_and_Profiling#systemtap'></ulink>.
-                Also, the ability to ssh into the target system is not enabled
-                by default in *-minimal images.
-            </note>
-            <literallayout class='monospaced'>
-     $ crosstap root@192.168.1.88 trace_open.stp
-
-     Error: No target kernel build found.
-     Did you forget to create a local build of your image?
-
-     'crosstap' requires a local sdk build of the target system
-     (or a build that includes 'tools-profile') in order to build
-     kernel modules that can probe the target system.
-
-     Practically speaking, that means you need to do the following:
-      - If you're running a pre-built image, download the release
-        and/or BSP tarballs used to build the image.
-      - If you're working from git sources, just clone the metadata
-        and BSP layers needed to build the image you'll be booting.
-      - Make sure you're properly set up to build a new image (see
-        the BSP README and/or the widely available basic documentation
-        that discusses how to build images).
-      - Build an -sdk version of the image e.g.:
-          $ bitbake core-image-sato-sdk
-      OR
-      - Build a non-sdk image but include the profiling tools:
-          [ edit local.conf and add 'tools-profile' to the end of
-            the EXTRA_IMAGE_FEATURES variable ]
-          $ bitbake core-image-sato
-
-     Once you've build the image on the host system, you're ready to
-     boot it (or the equivalent pre-built image) and use 'crosstap'
-     to probe it (you need to source the environment as usual first):
-
-        $ source oe-init-build-env
-        $ cd ~/my/systemtap/scripts
-        $ crosstap root@192.168.1.xxx myscript.stp
-            </literallayout>
-            So essentially what you need to do is build an SDK image or
-            image with 'tools-profile' as detailed in the
-            "<link linkend='profile-manual-general-setup'>General Setup</link>"
-            section of this manual, and boot the resulting target image.
-        </para>
-
-        <note>
-            If you have a build directory containing multiple machines,
-            you need to have the MACHINE you're connecting to selected
-            in local.conf, and the kernel in that machine's build
-            directory must match the kernel on the booted system exactly,
-            or you'll get the above 'crosstap' message when you try to
-            invoke a script.
-        </note>
-    </section>
-
-    <section id='running-a-script-on-a-target'>
-        <title>Running a Script on a Target</title>
-
-        <para>
-            Once you've done that, you should be able to run a systemtap
-            script on the target:
-            <literallayout class='monospaced'>
-     $ cd /path/to/yocto
-     $ source oe-init-build-env
-
-     ### Shell environment set up for builds. ###
-
-     You can now run 'bitbake &lt;target&gt;'
-
-     Common targets are:
-              core-image-minimal
-              core-image-sato
-              meta-toolchain
-              meta-ide-support
-
-     You can also run generated qemu images with a command like 'runqemu qemux86-64'
-
-            </literallayout>
-            Once you've done that, you can cd to whatever directory
-            contains your scripts and use 'crosstap' to run the script:
-            <literallayout class='monospaced'>
-     $ cd /path/to/my/systemap/script
-     $ crosstap root@192.168.7.2 trace_open.stp
-            </literallayout>
-            If you get an error connecting to the target e.g.:
-            <literallayout class='monospaced'>
-     $ crosstap root@192.168.7.2 trace_open.stp
-     error establishing ssh connection on remote 'root@192.168.7.2'
-            </literallayout>
-            Try ssh'ing to the target and see what happens:
-            <literallayout class='monospaced'>
-     $ ssh root@192.168.7.2
-            </literallayout>
-            A lot of the time, connection problems are due specifying a
-            wrong IP address or having a 'host key verification error'.
-        </para>
-
-        <para>
-            If everything worked as planned, you should see something
-            like this (enter the password when prompted, or press enter
-            if it's set up to use no password):
-            <literallayout class='monospaced'>
-     $ crosstap root@192.168.7.2 trace_open.stp
-     root@192.168.7.2's password:
-     matchbox-termin(1036) open ("/tmp/vte3FS2LW", O_RDWR|O_CREAT|O_EXCL|O_LARGEFILE, 0600)
-     matchbox-termin(1036) open ("/tmp/vteJMC7LW", O_RDWR|O_CREAT|O_EXCL|O_LARGEFILE, 0600)
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='systemtap-documentation'>
-        <title>Documentation</title>
-
-        <para>
-            The SystemTap language reference can be found here:
-            <ulink url='http://sourceware.org/systemtap/langref/'>SystemTap Language Reference</ulink>
-        </para>
-
-        <para>
-            Links to other SystemTap documents, tutorials, and examples can be
-            found here:
-            <ulink url='http://sourceware.org/systemtap/documentation.html'>SystemTap documentation page</ulink>
-        </para>
-    </section>
-</section>
-
-<section id='profile-manual-sysprof'>
-    <title>Sysprof</title>
-
-    <para>
-        Sysprof is a very easy to use system-wide profiler that consists
-        of a single window with three panes and a few buttons which allow
-        you to start, stop, and view the profile from one place.
-    </para>
-
-    <section id='sysprof-setup'>
-        <title>Setup</title>
-
-        <para>
-            For this section, we'll assume you've already performed the
-            basic setup outlined in the General Setup section.
-        </para>
-
-        <para>
-            Sysprof is a GUI-based application that runs on the target
-            system. For the rest of this document we assume you've
-            ssh'ed to the host and will be running Sysprof on the
-            target (you can use the '-X' option to ssh and have the
-            Sysprof GUI run on the target but display remotely on the
-            host if you want).
-        </para>
-    </section>
-
-    <section id='sysprof-basic-usage'>
-        <title>Basic Usage</title>
-
-        <para>
-            To start profiling the system, you simply press the 'Start'
-            button. To stop profiling and to start viewing the profile data
-            in one easy step, press the 'Profile' button.
-        </para>
-
-        <para>
-            Once you've pressed the profile button, the three panes will
-            fill up with profiling data:
-        </para>
-
-        <para>
-            <imagedata fileref="figures/sysprof-copy-to-user.png" width="6in" depth="4in" align="center" scalefit="1" />
-        </para>
-
-        <para>
-            The left pane shows a list of functions and processes.
-            Selecting one of those expands that function in the right
-            pane, showing all its callees. Note that this caller-oriented
-            display is essentially the inverse of perf's default
-            callee-oriented callchain display.
-        </para>
-
-        <para>
-            In the screenshot above, we're focusing on __copy_to_user_ll()
-            and looking up the callchain we can see that one of the callers
-            of __copy_to_user_ll is sys_read() and the complete callpath
-            between them. Notice that this is essentially a portion of the
-            same information we saw in the perf display shown in the perf
-            section of this page.
-        </para>
-
-        <para>
-            <imagedata fileref="figures/sysprof-copy-from-user.png" width="6in" depth="4in" align="center" scalefit="1" />
-        </para>
-
-        <para>
-            Similarly, the above is a snapshot of the Sysprof display of a
-            copy-from-user callchain.
-        </para>
-
-        <para>
-            Finally, looking at the third Sysprof pane in the lower left,
-            we can see a list of all the callers of a particular function
-            selected in the top left pane. In this case, the lower pane is
-            showing all the callers of __mark_inode_dirty:
-        </para>
-
-        <para>
-            <imagedata fileref="figures/sysprof-callers.png" width="6in" depth="4in" align="center" scalefit="1" />
-        </para>
-
-        <para>
-            Double-clicking on one of those functions will in turn change the
-            focus to the selected function, and so on.
-        </para>
-
-        <informalexample>
-            <emphasis>Tying it Together:</emphasis> If you like sysprof's 'caller-oriented'
-            display, you may be able to approximate it in other tools as
-            well.  For example, 'perf report' has the -g (--call-graph)
-            option that you can experiment with; one of the options is
-            'caller' for an inverted caller-based callgraph display.
-        </informalexample>
-    </section>
-
-    <section id='sysprof-documentation'>
-        <title>Documentation</title>
-
-        <para>
-            There doesn't seem to be any documentation for Sysprof, but
-            maybe that's because it's pretty self-explanatory.
-            The Sysprof website, however, is here:
-            <ulink url='http://sysprof.com/'>Sysprof, System-wide Performance Profiler for Linux</ulink>
-        </para>
-    </section>
-</section>
-
-<section id='lttng-linux-trace-toolkit-next-generation'>
-    <title>LTTng (Linux Trace Toolkit, next generation)</title>
-
-    <section id='lttng-setup'>
-        <title>Setup</title>
-
-        <para>
-            For this section, we'll assume you've already performed the
-            basic setup outlined in the General Setup section.
-            LTTng is run on the target system by ssh'ing to it.
-        </para>
-    </section>
-
-    <section id='collecting-and-viewing-traces'>
-        <title>Collecting and Viewing Traces</title>
-
-        <para>
-            Once you've applied the above commits and built and booted your
-            image (you need to build the core-image-sato-sdk image or use one of the
-            other methods described in the General Setup section), you're
-            ready to start tracing.
-        </para>
-
-        <section id='collecting-and-viewing-a-trace-on-the-target-inside-a-shell'>
-            <title>Collecting and viewing a trace on the target (inside a shell)</title>
-
-            <para>
-                First, from the host, ssh to the target:
-                <literallayout class='monospaced'>
-     $ ssh -l root 192.168.1.47
-     The authenticity of host '192.168.1.47 (192.168.1.47)' can't be established.
-     RSA key fingerprint is 23:bd:c8:b1:a8:71:52:00:ee:00:4f:64:9e:10:b9:7e.
-     Are you sure you want to continue connecting (yes/no)? yes
-     Warning: Permanently added '192.168.1.47' (RSA) to the list of known hosts.
-     root@192.168.1.47's password:
-                </literallayout>
-                Once on the target, use these steps to create a trace:
-                <literallayout class='monospaced'>
-     root@crownbay:~# lttng create
-     Spawning a session daemon
-     Session auto-20121015-232120 created.
-     Traces will be written in /home/root/lttng-traces/auto-20121015-232120
-                </literallayout>
-                Enable the events you want to trace (in this case all
-                kernel events):
-                <literallayout class='monospaced'>
-     root@crownbay:~# lttng enable-event --kernel --all
-     All kernel events are enabled in channel channel0
-                </literallayout>
-                Start the trace:
-                <literallayout class='monospaced'>
-     root@crownbay:~# lttng start
-     Tracing started for session auto-20121015-232120
-                </literallayout>
-                And then stop the trace after awhile or after running
-                a particular workload that you want to trace:
-                <literallayout class='monospaced'>
-     root@crownbay:~# lttng stop
-     Tracing stopped for session auto-20121015-232120
-                </literallayout>
-                You can now view the trace in text form on the target:
-                <literallayout class='monospaced'>
-     root@crownbay:~# lttng view
-     [23:21:56.989270399] (+?.?????????) sys_geteuid: { 1 }, { }
-     [23:21:56.989278081] (+0.000007682) exit_syscall: { 1 }, { ret = 0 }
-     [23:21:56.989286043] (+0.000007962) sys_pipe: { 1 }, { fildes = 0xB77B9E8C }
-     [23:21:56.989321802] (+0.000035759) exit_syscall: { 1 }, { ret = 0 }
-     [23:21:56.989329345] (+0.000007543) sys_mmap_pgoff: { 1 }, { addr = 0x0, len = 10485760, prot = 3, flags = 131362, fd = 4294967295, pgoff = 0 }
-     [23:21:56.989351694] (+0.000022349) exit_syscall: { 1 }, { ret = -1247805440 }
-     [23:21:56.989432989] (+0.000081295) sys_clone: { 1 }, { clone_flags = 0x411, newsp = 0xB5EFFFE4, parent_tid = 0xFFFFFFFF, child_tid = 0x0 }
-     [23:21:56.989477129] (+0.000044140) sched_stat_runtime: { 1 }, { comm = "lttng-consumerd", tid = 1193, runtime = 681660, vruntime = 43367983388 }
-     [23:21:56.989486697] (+0.000009568) sched_migrate_task: { 1 }, { comm = "lttng-consumerd", tid = 1193, prio = 20, orig_cpu = 1, dest_cpu = 1 }
-     [23:21:56.989508418] (+0.000021721) hrtimer_init: { 1 }, { hrtimer = 3970832076, clockid = 1, mode = 1 }
-     [23:21:56.989770462] (+0.000262044) hrtimer_cancel: { 1 }, { hrtimer = 3993865440 }
-     [23:21:56.989771580] (+0.000001118) hrtimer_cancel: { 0 }, { hrtimer = 3993812192 }
-     [23:21:56.989776957] (+0.000005377) hrtimer_expire_entry: { 1 }, { hrtimer = 3993865440, now = 79815980007057, function = 3238465232 }
-     [23:21:56.989778145] (+0.000001188) hrtimer_expire_entry: { 0 }, { hrtimer = 3993812192, now = 79815980008174, function = 3238465232 }
-     [23:21:56.989791695] (+0.000013550) softirq_raise: { 1 }, { vec = 1 }
-     [23:21:56.989795396] (+0.000003701) softirq_raise: { 0 }, { vec = 1 }
-     [23:21:56.989800635] (+0.000005239) softirq_raise: { 0 }, { vec = 9 }
-     [23:21:56.989807130] (+0.000006495) sched_stat_runtime: { 1 }, { comm = "lttng-consumerd", tid = 1193, runtime = 330710, vruntime = 43368314098 }
-     [23:21:56.989809993] (+0.000002863) sched_stat_runtime: { 0 }, { comm = "lttng-sessiond", tid = 1181, runtime = 1015313, vruntime = 36976733240 }
-     [23:21:56.989818514] (+0.000008521) hrtimer_expire_exit: { 0 }, { hrtimer = 3993812192 }
-     [23:21:56.989819631] (+0.000001117) hrtimer_expire_exit: { 1 }, { hrtimer = 3993865440 }
-     [23:21:56.989821866] (+0.000002235) hrtimer_start: { 0 }, { hrtimer = 3993812192, function = 3238465232, expires = 79815981000000, softexpires = 79815981000000 }
-     [23:21:56.989822984] (+0.000001118) hrtimer_start: { 1 }, { hrtimer = 3993865440, function = 3238465232, expires = 79815981000000, softexpires = 79815981000000 }
-     [23:21:56.989832762] (+0.000009778) softirq_entry: { 1 }, { vec = 1 }
-     [23:21:56.989833879] (+0.000001117) softirq_entry: { 0 }, { vec = 1 }
-     [23:21:56.989838069] (+0.000004190) timer_cancel: { 1 }, { timer = 3993871956 }
-     [23:21:56.989839187] (+0.000001118) timer_cancel: { 0 }, { timer = 3993818708 }
-     [23:21:56.989841492] (+0.000002305) timer_expire_entry: { 1 }, { timer = 3993871956, now = 79515980, function = 3238277552 }
-     [23:21:56.989842819] (+0.000001327) timer_expire_entry: { 0 }, { timer = 3993818708, now = 79515980, function = 3238277552 }
-     [23:21:56.989854831] (+0.000012012) sched_stat_runtime: { 1 }, { comm = "lttng-consumerd", tid = 1193, runtime = 49237, vruntime = 43368363335 }
-     [23:21:56.989855949] (+0.000001118) sched_stat_runtime: { 0 }, { comm = "lttng-sessiond", tid = 1181, runtime = 45121, vruntime = 36976778361 }
-     [23:21:56.989861257] (+0.000005308) sched_stat_sleep: { 1 }, { comm = "kworker/1:1", tid = 21, delay = 9451318 }
-     [23:21:56.989862374] (+0.000001117) sched_stat_sleep: { 0 }, { comm = "kworker/0:0", tid = 4, delay = 9958820 }
-     [23:21:56.989868241] (+0.000005867) sched_wakeup: { 0 }, { comm = "kworker/0:0", tid = 4, prio = 120, success = 1, target_cpu = 0 }
-     [23:21:56.989869358] (+0.000001117) sched_wakeup: { 1 }, { comm = "kworker/1:1", tid = 21, prio = 120, success = 1, target_cpu = 1 }
-     [23:21:56.989877460] (+0.000008102) timer_expire_exit: { 1 }, { timer = 3993871956 }
-     [23:21:56.989878577] (+0.000001117) timer_expire_exit: { 0 }, { timer = 3993818708 }
-     .
-     .
-     .
-                </literallayout>
-                You can now safely destroy the trace session (note that
-                this doesn't delete the trace - it's still there
-                in ~/lttng-traces):
-                <literallayout class='monospaced'>
-     root@crownbay:~# lttng destroy
-     Session auto-20121015-232120 destroyed at /home/root
-                </literallayout>
-                Note that the trace is saved in a directory of the same
-                name as returned by 'lttng create', under the ~/lttng-traces
-                directory (note that you can change this by supplying your
-                own name to 'lttng create'):
-                <literallayout class='monospaced'>
-     root@crownbay:~# ls -al ~/lttng-traces
-     drwxrwx---    3 root     root          1024 Oct 15 23:21 .
-     drwxr-xr-x    5 root     root          1024 Oct 15 23:57 ..
-     drwxrwx---    3 root     root          1024 Oct 15 23:21 auto-20121015-232120
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='collecting-and-viewing-a-userspace-trace-on-the-target-inside-a-shell'>
-            <title>Collecting and viewing a userspace trace on the target (inside a shell)</title>
-
-            <para>
-                For LTTng userspace tracing, you need to have a properly
-                instrumented userspace program. For this example, we'll use
-                the 'hello' test program generated by the lttng-ust build.
-            </para>
-
-            <para>
-                The 'hello' test program isn't installed on the rootfs by
-                the lttng-ust build, so we need to copy it over manually.
-                First cd into the build directory that contains the hello
-                executable:
-                <literallayout class='monospaced'>
-     $ cd build/tmp/work/core2_32-poky-linux/lttng-ust/2.0.5-r0/git/tests/hello/.libs
-                </literallayout>
-                Copy that over to the target machine:
-                <literallayout class='monospaced'>
-     $ scp hello root@192.168.1.20:
-                </literallayout>
-                You now have the instrumented lttng 'hello world' test
-                program on the target, ready to test.
-            </para>
-
-            <para>
-                First, from the host, ssh to the target:
-                <literallayout class='monospaced'>
-     $ ssh -l root 192.168.1.47
-     The authenticity of host '192.168.1.47 (192.168.1.47)' can't be established.
-     RSA key fingerprint is 23:bd:c8:b1:a8:71:52:00:ee:00:4f:64:9e:10:b9:7e.
-     Are you sure you want to continue connecting (yes/no)? yes
-     Warning: Permanently added '192.168.1.47' (RSA) to the list of known hosts.
-     root@192.168.1.47's password:
-                </literallayout>
-                Once on the target, use these steps to create a trace:
-                <literallayout class='monospaced'>
-     root@crownbay:~# lttng create
-     Session auto-20190303-021943 created.
-     Traces will be written in /home/root/lttng-traces/auto-20190303-021943
-                </literallayout>
-                Enable the events you want to trace (in this case all
-                userspace events):
-                <literallayout class='monospaced'>
-     root@crownbay:~# lttng enable-event --userspace --all
-     All UST events are enabled in channel channel0
-                </literallayout>
-                Start the trace:
-                <literallayout class='monospaced'>
-     root@crownbay:~# lttng start
-     Tracing started for session auto-20190303-021943
-                </literallayout>
-                Run the instrumented hello world program:
-                <literallayout class='monospaced'>
-     root@crownbay:~# ./hello
-     Hello, World!
-     Tracing...  done.
-                </literallayout>
-                And then stop the trace after awhile or after running a
-                particular workload that you want to trace:
-                <literallayout class='monospaced'>
-     root@crownbay:~# lttng stop
-     Tracing stopped for session auto-20190303-021943
-                </literallayout>
-                You can now view the trace in text form on the target:
-                <literallayout class='monospaced'>
-     root@crownbay:~# lttng view
-     [02:31:14.906146544] (+?.?????????) hello:1424 ust_tests_hello:tptest: { cpu_id = 1 }, { intfield = 0, intfield2 = 0x0, longfield = 0, netintfield = 0, netintfieldhex = 0x0, arrfield1 = [ [0] = 1, [1] = 2, [2] = 3 ], arrfield2 = "test", _seqfield1_length = 4, seqfield1 = [ [0] = 116, [1] = 101, [2] = 115, [3] = 116 ], _seqfield2_length = 4,  seqfield2 = "test", stringfield = "test", floatfield = 2222, doublefield = 2, boolfield = 1 }
-     [02:31:14.906170360] (+0.000023816) hello:1424 ust_tests_hello:tptest: { cpu_id = 1 }, { intfield = 1, intfield2 = 0x1, longfield = 1, netintfield = 1, netintfieldhex = 0x1, arrfield1 = [ [0] = 1, [1] = 2, [2] = 3 ], arrfield2 = "test", _seqfield1_length = 4, seqfield1 = [ [0] = 116, [1] = 101, [2] = 115, [3] = 116 ], _seqfield2_length = 4, seqfield2 = "test", stringfield = "test", floatfield = 2222, doublefield = 2, boolfield = 1 }
-     [02:31:14.906183140] (+0.000012780) hello:1424 ust_tests_hello:tptest: { cpu_id = 1 }, { intfield = 2, intfield2 = 0x2, longfield = 2, netintfield = 2, netintfieldhex = 0x2, arrfield1 = [ [0] = 1, [1] = 2, [2] = 3 ], arrfield2 = "test", _seqfield1_length = 4, seqfield1 = [ [0] = 116, [1] = 101, [2] = 115, [3] = 116 ], _seqfield2_length = 4, seqfield2 = "test", stringfield = "test", floatfield = 2222, doublefield = 2, boolfield = 1 }
-     [02:31:14.906194385] (+0.000011245) hello:1424 ust_tests_hello:tptest: { cpu_id = 1 }, { intfield = 3, intfield2 = 0x3, longfield = 3, netintfield = 3, netintfieldhex = 0x3, arrfield1 = [ [0] = 1, [1] = 2, [2] = 3 ], arrfield2 = "test", _seqfield1_length = 4, seqfield1 = [ [0] = 116, [1] = 101, [2] = 115, [3] = 116 ], _seqfield2_length = 4, seqfield2 = "test", stringfield = "test", floatfield = 2222, doublefield = 2, boolfield = 1 }
-     .
-     .
-     .
-                </literallayout>
-                You can now safely destroy the trace session (note that
-                this doesn't delete the trace - it's still
-                there in ~/lttng-traces):
-                <literallayout class='monospaced'>
-     root@crownbay:~# lttng destroy
-     Session auto-20190303-021943 destroyed at /home/root
-                </literallayout>
-            </para>
-        </section>
-
-    </section>
-
-    <section id='lltng-documentation'>
-        <title>Documentation</title>
-
-        <para>
-            You can find the primary LTTng Documentation on the
-            <ulink url='https://lttng.org/docs/'>LTTng Documentation</ulink>
-            site.
-            The documentation on this site is appropriate for intermediate to
-            advanced software developers who are working in a Linux environment
-            and are interested in efficient software tracing.
-        </para>
-
-        <para>
-            For information on LTTng in general, visit the
-            <ulink url='http://lttng.org/lttng2.0'>LTTng Project</ulink>
-            site.
-            You can find a "Getting Started" link on this site that takes
-            you to an LTTng Quick Start.
-        </para>
-    </section>
-</section>
-
-<section id='profile-manual-blktrace'>
-    <title>blktrace</title>
-
-    <para>
-        blktrace is a tool for tracing and reporting low-level disk I/O.
-        blktrace provides the tracing half of the equation; its output can
-        be piped into the blkparse program, which renders the data in a
-        human-readable form and does some basic analysis:
-    </para>
-
-    <section id='blktrace-setup'>
-        <title>Setup</title>
-
-        <para>
-            For this section, we'll assume you've already performed the
-            basic setup outlined in the
-            "<link linkend='profile-manual-general-setup'>General Setup</link>"
-            section.
-        </para>
-
-        <para>
-            blktrace is an application that runs on the target system.
-            You can run the entire blktrace and blkparse pipeline on the
-            target, or you can run blktrace in 'listen' mode on the target
-            and have blktrace and blkparse collect and analyze the data on
-            the host (see the
-            "<link linkend='using-blktrace-remotely'>Using blktrace Remotely</link>"
-            section below).
-            For the rest of this section we assume you've ssh'ed to the
-            host and will be running blkrace on the target.
-        </para>
-    </section>
-
-    <section id='blktrace-basic-usage'>
-        <title>Basic Usage</title>
-
-        <para>
-            To record a trace, simply run the 'blktrace' command, giving it
-            the name of the block device you want to trace activity on:
-            <literallayout class='monospaced'>
-     root@crownbay:~# blktrace /dev/sdc
-            </literallayout>
-            In another shell, execute a workload you want to trace.
-            <literallayout class='monospaced'>
-     root@crownbay:/media/sdc# rm linux-2.6.19.2.tar.bz2; wget <ulink url='http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2'>http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2</ulink>; sync
-     Connecting to downloads.yoctoproject.org (140.211.169.59:80)
-     linux-2.6.19.2.tar.b 100% |*******************************| 41727k  0:00:00 ETA
-            </literallayout>
-            Press Ctrl-C in the blktrace shell to stop the trace. It will
-            display how many events were logged, along with the per-cpu file
-            sizes (blktrace records traces in per-cpu kernel buffers and
-            simply dumps them to userspace for blkparse to merge and sort
-            later).
-            <literallayout class='monospaced'>
-     ^C=== sdc ===
-      CPU  0:                 7082 events,      332 KiB data
-      CPU  1:                 1578 events,       74 KiB data
-      Total:                  8660 events (dropped 0),      406 KiB data
-            </literallayout>
-            If you examine the files saved to disk, you see multiple files,
-            one per CPU and with the device name as the first part of the
-            filename:
-            <literallayout class='monospaced'>
-     root@crownbay:~# ls -al
-     drwxr-xr-x    6 root     root          1024 Oct 27 22:39 .
-     drwxr-sr-x    4 root     root          1024 Oct 26 18:24 ..
-     -rw-r--r--    1 root     root        339938 Oct 27 22:40 sdc.blktrace.0
-     -rw-r--r--    1 root     root         75753 Oct 27 22:40 sdc.blktrace.1
-            </literallayout>
-            To view the trace events, simply invoke 'blkparse' in the
-            directory containing the trace files, giving it the device name
-            that forms the first part of the filenames:
-            <literallayout class='monospaced'>
-     root@crownbay:~# blkparse sdc
-
-      8,32   1        1     0.000000000  1225  Q  WS 3417048 + 8 [jbd2/sdc-8]
-      8,32   1        2     0.000025213  1225  G  WS 3417048 + 8 [jbd2/sdc-8]
-      8,32   1        3     0.000033384  1225  P   N [jbd2/sdc-8]
-      8,32   1        4     0.000043301  1225  I  WS 3417048 + 8 [jbd2/sdc-8]
-      8,32   1        0     0.000057270     0  m   N cfq1225 insert_request
-      8,32   1        0     0.000064813     0  m   N cfq1225 add_to_rr
-      8,32   1        5     0.000076336  1225  U   N [jbd2/sdc-8] 1
-      8,32   1        0     0.000088559     0  m   N cfq workload slice:150
-      8,32   1        0     0.000097359     0  m   N cfq1225 set_active wl_prio:0 wl_type:1
-      8,32   1        0     0.000104063     0  m   N cfq1225 Not idling. st->count:1
-      8,32   1        0     0.000112584     0  m   N cfq1225 fifo=  (null)
-      8,32   1        0     0.000118730     0  m   N cfq1225 dispatch_insert
-      8,32   1        0     0.000127390     0  m   N cfq1225 dispatched a request
-      8,32   1        0     0.000133536     0  m   N cfq1225 activate rq, drv=1
-      8,32   1        6     0.000136889  1225  D  WS 3417048 + 8 [jbd2/sdc-8]
-      8,32   1        7     0.000360381  1225  Q  WS 3417056 + 8 [jbd2/sdc-8]
-      8,32   1        8     0.000377422  1225  G  WS 3417056 + 8 [jbd2/sdc-8]
-      8,32   1        9     0.000388876  1225  P   N [jbd2/sdc-8]
-      8,32   1       10     0.000397886  1225  Q  WS 3417064 + 8 [jbd2/sdc-8]
-      8,32   1       11     0.000404800  1225  M  WS 3417064 + 8 [jbd2/sdc-8]
-      8,32   1       12     0.000412343  1225  Q  WS 3417072 + 8 [jbd2/sdc-8]
-      8,32   1       13     0.000416533  1225  M  WS 3417072 + 8 [jbd2/sdc-8]
-      8,32   1       14     0.000422121  1225  Q  WS 3417080 + 8 [jbd2/sdc-8]
-      8,32   1       15     0.000425194  1225  M  WS 3417080 + 8 [jbd2/sdc-8]
-      8,32   1       16     0.000431968  1225  Q  WS 3417088 + 8 [jbd2/sdc-8]
-      8,32   1       17     0.000435251  1225  M  WS 3417088 + 8 [jbd2/sdc-8]
-      8,32   1       18     0.000440279  1225  Q  WS 3417096 + 8 [jbd2/sdc-8]
-      8,32   1       19     0.000443911  1225  M  WS 3417096 + 8 [jbd2/sdc-8]
-      8,32   1       20     0.000450336  1225  Q  WS 3417104 + 8 [jbd2/sdc-8]
-      8,32   1       21     0.000454038  1225  M  WS 3417104 + 8 [jbd2/sdc-8]
-      8,32   1       22     0.000462070  1225  Q  WS 3417112 + 8 [jbd2/sdc-8]
-      8,32   1       23     0.000465422  1225  M  WS 3417112 + 8 [jbd2/sdc-8]
-      8,32   1       24     0.000474222  1225  I  WS 3417056 + 64 [jbd2/sdc-8]
-      8,32   1        0     0.000483022     0  m   N cfq1225 insert_request
-      8,32   1       25     0.000489727  1225  U   N [jbd2/sdc-8] 1
-      8,32   1        0     0.000498457     0  m   N cfq1225 Not idling. st->count:1
-      8,32   1        0     0.000503765     0  m   N cfq1225 dispatch_insert
-      8,32   1        0     0.000512914     0  m   N cfq1225 dispatched a request
-      8,32   1        0     0.000518851     0  m   N cfq1225 activate rq, drv=2
-      .
-      .
-      .
-      8,32   0        0    58.515006138     0  m   N cfq3551 complete rqnoidle 1
-      8,32   0     2024    58.516603269     3  C  WS 3156992 + 16 [0]
-      8,32   0        0    58.516626736     0  m   N cfq3551 complete rqnoidle 1
-      8,32   0        0    58.516634558     0  m   N cfq3551 arm_idle: 8 group_idle: 0
-      8,32   0        0    58.516636933     0  m   N cfq schedule dispatch
-      8,32   1        0    58.516971613     0  m   N cfq3551 slice expired t=0
-      8,32   1        0    58.516982089     0  m   N cfq3551 sl_used=13 disp=6 charge=13 iops=0 sect=80
-      8,32   1        0    58.516985511     0  m   N cfq3551 del_from_rr
-      8,32   1        0    58.516990819     0  m   N cfq3551 put_queue
-
-     CPU0 (sdc):
-      Reads Queued:           0,        0KiB	 Writes Queued:         331,   26,284KiB
-      Read Dispatches:        0,        0KiB	 Write Dispatches:      485,   40,484KiB
-      Reads Requeued:         0		 Writes Requeued:         0
-      Reads Completed:        0,        0KiB	 Writes Completed:      511,   41,000KiB
-      Read Merges:            0,        0KiB	 Write Merges:           13,      160KiB
-      Read depth:             0        	 Write depth:             2
-      IO unplugs:            23        	 Timer unplugs:           0
-     CPU1 (sdc):
-      Reads Queued:           0,        0KiB	 Writes Queued:         249,   15,800KiB
-      Read Dispatches:        0,        0KiB	 Write Dispatches:       42,    1,600KiB
-      Reads Requeued:         0		 Writes Requeued:         0
-      Reads Completed:        0,        0KiB	 Writes Completed:       16,    1,084KiB
-      Read Merges:            0,        0KiB	 Write Merges:           40,      276KiB
-      Read depth:             0        	 Write depth:             2
-      IO unplugs:            30        	 Timer unplugs:           1
-
-     Total (sdc):
-      Reads Queued:           0,        0KiB	 Writes Queued:         580,   42,084KiB
-      Read Dispatches:        0,        0KiB	 Write Dispatches:      527,   42,084KiB
-      Reads Requeued:         0		 Writes Requeued:         0
-      Reads Completed:        0,        0KiB	 Writes Completed:      527,   42,084KiB
-      Read Merges:            0,        0KiB	 Write Merges:           53,      436KiB
-      IO unplugs:            53        	 Timer unplugs:           1
-
-     Throughput (R/W): 0KiB/s / 719KiB/s
-     Events (sdc): 6,592 entries
-     Skips: 0 forward (0 -   0.0%)
-     Input file sdc.blktrace.0 added
-     Input file sdc.blktrace.1 added
-            </literallayout>
-            The report shows each event that was found in the blktrace data,
-            along with a summary of the overall block I/O traffic during
-            the run. You can look at the
-            <ulink url='http://linux.die.net/man/1/blkparse'>blkparse</ulink>
-            manpage to learn the
-            meaning of each field displayed in the trace listing.
-        </para>
-
-        <section id='blktrace-live-mode'>
-            <title>Live Mode</title>
-
-            <para>
-                blktrace and blkparse are designed from the ground up to
-                be able to operate together in a 'pipe mode' where the
-                stdout of blktrace can be fed directly into the stdin of
-                blkparse:
-                <literallayout class='monospaced'>
-     root@crownbay:~# blktrace /dev/sdc -o - | blkparse -i -
-                </literallayout>
-                This enables long-lived tracing sessions to run without
-                writing anything to disk, and allows the user to look for
-                certain conditions in the trace data in 'real-time' by
-                viewing the trace output as it scrolls by on the screen or
-                by passing it along to yet another program in the pipeline
-                such as grep which can be used to identify and capture
-                conditions of interest.
-            </para>
-
-            <para>
-                There's actually another blktrace command that implements
-                the above pipeline as a single command, so the user doesn't
-                have to bother typing in the above command sequence:
-                <literallayout class='monospaced'>
-     root@crownbay:~# btrace /dev/sdc
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='using-blktrace-remotely'>
-            <title>Using blktrace Remotely</title>
-
-            <para>
-                Because blktrace traces block I/O and at the same time
-                normally writes its trace data to a block device, and
-                in general because it's not really a great idea to make
-                the device being traced the same as the device the tracer
-                writes to, blktrace provides a way to trace without
-                perturbing the traced device at all by providing native
-                support for sending all trace data over the network.
-            </para>
-
-            <para>
-                To have blktrace operate in this mode, start blktrace on
-                the target system being traced with the -l option, along with
-                the device to trace:
-                <literallayout class='monospaced'>
-     root@crownbay:~# blktrace -l /dev/sdc
-     server: waiting for connections...
-                </literallayout>
-                On the host system, use the -h option to connect to the
-                target system, also passing it the device to trace:
-                <literallayout class='monospaced'>
-     $ blktrace -d /dev/sdc -h 192.168.1.43
-     blktrace: connecting to 192.168.1.43
-     blktrace: connected!
-                </literallayout>
-                On the target system, you should see this:
-                <literallayout class='monospaced'>
-     server: connection from 192.168.1.43
-                </literallayout>
-                In another shell, execute a workload you want to trace.
-                <literallayout class='monospaced'>
-     root@crownbay:/media/sdc# rm linux-2.6.19.2.tar.bz2; wget <ulink url='http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2'>http://downloads.yoctoproject.org/mirror/sources/linux-2.6.19.2.tar.bz2</ulink>; sync
-     Connecting to downloads.yoctoproject.org (140.211.169.59:80)
-     linux-2.6.19.2.tar.b 100% |*******************************| 41727k  0:00:00 ETA
-                </literallayout>
-                When it's done, do a Ctrl-C on the host system to
-                stop the trace:
-                <literallayout class='monospaced'>
-     ^C=== sdc ===
-      CPU  0:                 7691 events,      361 KiB data
-      CPU  1:                 4109 events,      193 KiB data
-      Total:                 11800 events (dropped 0),      554 KiB data
-                </literallayout>
-                On the target system, you should also see a trace
-                summary for the trace just ended:
-                <literallayout class='monospaced'>
-     server: end of run for 192.168.1.43:sdc
-     === sdc ===
-      CPU  0:                 7691 events,      361 KiB data
-      CPU  1:                 4109 events,      193 KiB data
-      Total:                 11800 events (dropped 0),      554 KiB data
-                </literallayout>
-                The blktrace instance on the host will save the target
-                output inside a hostname-timestamp directory:
-                <literallayout class='monospaced'>
-     $ ls -al
-     drwxr-xr-x   10 root     root          1024 Oct 28 02:40 .
-     drwxr-sr-x    4 root     root          1024 Oct 26 18:24 ..
-     drwxr-xr-x    2 root     root          1024 Oct 28 02:40 192.168.1.43-2012-10-28-02:40:56
-                </literallayout>
-                cd into that directory to see the output files:
-                <literallayout class='monospaced'>
-     $ ls -l
-     -rw-r--r--    1 root     root        369193 Oct 28 02:44 sdc.blktrace.0
-     -rw-r--r--    1 root     root        197278 Oct 28 02:44 sdc.blktrace.1
-                </literallayout>
-                And run blkparse on the host system using the device name:
-                <literallayout class='monospaced'>
-     $ blkparse sdc
-
-      8,32   1        1     0.000000000  1263  Q  RM 6016 + 8 [ls]
-      8,32   1        0     0.000036038     0  m   N cfq1263 alloced
-      8,32   1        2     0.000039390  1263  G  RM 6016 + 8 [ls]
-      8,32   1        3     0.000049168  1263  I  RM 6016 + 8 [ls]
-      8,32   1        0     0.000056152     0  m   N cfq1263 insert_request
-      8,32   1        0     0.000061600     0  m   N cfq1263 add_to_rr
-      8,32   1        0     0.000075498     0  m   N cfq workload slice:300
-      .
-      .
-      .
-      8,32   0        0   177.266385696     0  m   N cfq1267 arm_idle: 8 group_idle: 0
-      8,32   0        0   177.266388140     0  m   N cfq schedule dispatch
-      8,32   1        0   177.266679239     0  m   N cfq1267 slice expired t=0
-      8,32   1        0   177.266689297     0  m   N cfq1267 sl_used=9 disp=6 charge=9 iops=0 sect=56
-      8,32   1        0   177.266692649     0  m   N cfq1267 del_from_rr
-      8,32   1        0   177.266696560     0  m   N cfq1267 put_queue
-
-     CPU0 (sdc):
-      Reads Queued:           0,        0KiB	 Writes Queued:         270,   21,708KiB
-      Read Dispatches:       59,    2,628KiB	 Write Dispatches:      495,   39,964KiB
-      Reads Requeued:         0		 Writes Requeued:         0
-      Reads Completed:       90,    2,752KiB	 Writes Completed:      543,   41,596KiB
-      Read Merges:            0,        0KiB	 Write Merges:            9,      344KiB
-      Read depth:             2        	 Write depth:             2
-      IO unplugs:            20        	 Timer unplugs:           1
-     CPU1 (sdc):
-      Reads Queued:         688,    2,752KiB	 Writes Queued:         381,   20,652KiB
-      Read Dispatches:       31,      124KiB	 Write Dispatches:       59,    2,396KiB
-      Reads Requeued:         0		 Writes Requeued:         0
-      Reads Completed:        0,        0KiB	 Writes Completed:       11,      764KiB
-      Read Merges:          598,    2,392KiB	 Write Merges:           88,      448KiB
-      Read depth:             2        	 Write depth:             2
-      IO unplugs:            52        	 Timer unplugs:           0
-
-     Total (sdc):
-      Reads Queued:         688,    2,752KiB	 Writes Queued:         651,   42,360KiB
-      Read Dispatches:       90,    2,752KiB	 Write Dispatches:      554,   42,360KiB
-      Reads Requeued:         0		 Writes Requeued:         0
-      Reads Completed:       90,    2,752KiB	 Writes Completed:      554,   42,360KiB
-      Read Merges:          598,    2,392KiB	 Write Merges:           97,      792KiB
-      IO unplugs:            72        	 Timer unplugs:           1
-
-     Throughput (R/W): 15KiB/s / 238KiB/s
-     Events (sdc): 9,301 entries
-     Skips: 0 forward (0 -   0.0%)
-                </literallayout>
-                You should see the trace events and summary just as
-                you would have if you'd run the same command on the target.
-            </para>
-        </section>
-
-        <section id='tracing-block-io-via-ftrace'>
-            <title>Tracing Block I/O via 'ftrace'</title>
-
-            <para>
-                It's also possible to trace block I/O using only
-                <link linkend='the-trace-events-subsystem'>trace events subsystem</link>,
-                which can be useful for casual tracing
-                if you don't want to bother dealing with the userspace tools.
-            </para>
-
-            <para>
-                To enable tracing for a given device, use
-                /sys/block/xxx/trace/enable, where xxx is the device name.
-                This for example enables tracing for /dev/sdc:
-                <literallayout class='monospaced'>
-     root@crownbay:/sys/kernel/debug/tracing# echo 1 > /sys/block/sdc/trace/enable
-                </literallayout>
-                Once you've selected the device(s) you want to trace,
-                selecting the 'blk' tracer will turn the blk tracer on:
-                <literallayout class='monospaced'>
-     root@crownbay:/sys/kernel/debug/tracing# cat available_tracers
-     blk function_graph function nop
-
-     root@crownbay:/sys/kernel/debug/tracing# echo blk > current_tracer
-                </literallayout>
-                Execute the workload you're interested in:
-                <literallayout class='monospaced'>
-     root@crownbay:/sys/kernel/debug/tracing# cat /media/sdc/testfile.txt
-                </literallayout>
-                And look at the output (note here that we're using
-                'trace_pipe' instead of trace to capture this trace -
-                this allows us to wait around on the pipe for data to
-                appear):
-                <literallayout class='monospaced'>
-     root@crownbay:/sys/kernel/debug/tracing# cat trace_pipe
-                 cat-3587  [001] d..1  3023.276361:   8,32   Q   R 1699848 + 8 [cat]
-                 cat-3587  [001] d..1  3023.276410:   8,32   m   N cfq3587 alloced
-                 cat-3587  [001] d..1  3023.276415:   8,32   G   R 1699848 + 8 [cat]
-                 cat-3587  [001] d..1  3023.276424:   8,32   P   N [cat]
-                 cat-3587  [001] d..2  3023.276432:   8,32   I   R 1699848 + 8 [cat]
-                 cat-3587  [001] d..1  3023.276439:   8,32   m   N cfq3587 insert_request
-                 cat-3587  [001] d..1  3023.276445:   8,32   m   N cfq3587 add_to_rr
-                 cat-3587  [001] d..2  3023.276454:   8,32   U   N [cat] 1
-                 cat-3587  [001] d..1  3023.276464:   8,32   m   N cfq workload slice:150
-                 cat-3587  [001] d..1  3023.276471:   8,32   m   N cfq3587 set_active wl_prio:0 wl_type:2
-                 cat-3587  [001] d..1  3023.276478:   8,32   m   N cfq3587 fifo=  (null)
-                 cat-3587  [001] d..1  3023.276483:   8,32   m   N cfq3587 dispatch_insert
-                 cat-3587  [001] d..1  3023.276490:   8,32   m   N cfq3587 dispatched a request
-                 cat-3587  [001] d..1  3023.276497:   8,32   m   N cfq3587 activate rq, drv=1
-                 cat-3587  [001] d..2  3023.276500:   8,32   D   R 1699848 + 8 [cat]
-                </literallayout>
-                And this turns off tracing for the specified device:
-                <literallayout class='monospaced'>
-     root@crownbay:/sys/kernel/debug/tracing# echo 0 > /sys/block/sdc/trace/enable
-                </literallayout>
-            </para>
-        </section>
-    </section>
-
-    <section id='blktrace-documentation'>
-        <title>Documentation</title>
-
-        <para>
-            Online versions of the man pages for the commands discussed
-            in this section can be found here:
-            <itemizedlist>
-                <listitem><para><ulink url='http://linux.die.net/man/8/blktrace'>http://linux.die.net/man/8/blktrace</ulink>
-                    </para></listitem>
-                <listitem><para><ulink url='http://linux.die.net/man/1/blkparse'>http://linux.die.net/man/1/blkparse</ulink>
-                    </para></listitem>
-                <listitem><para><ulink url='http://linux.die.net/man/8/btrace'>http://linux.die.net/man/8/btrace</ulink>
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            The above manpages, along with manpages for the other
-            blktrace utilities (btt, blkiomon, etc) can be found in the
-            /doc directory of the blktrace tools git repo:
-            <literallayout class='monospaced'>
-     $ git clone git://git.kernel.dk/blktrace.git
-            </literallayout>
-        </para>
-    </section>
-</section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/profile-manual/profile-manual.rst b/poky/documentation/profile-manual/profile-manual.rst
index 2c8fcf3..5ec5b9e 100644
--- a/poky/documentation/profile-manual/profile-manual.rst
+++ b/poky/documentation/profile-manual/profile-manual.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ==========================================
 Yocto Project Profiling and Tracing Manual
diff --git a/poky/documentation/profile-manual/profile-manual.xml b/poky/documentation/profile-manual/profile-manual.xml
deleted file mode 100755
index 48bfba5..0000000
--- a/poky/documentation/profile-manual/profile-manual.xml
+++ /dev/null
@@ -1,180 +0,0 @@
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<book id='profile-manual' lang='en'
-      xmlns:xi="http://www.w3.org/2003/XInclude"
-      xmlns="http://docbook.org/ns/docbook"
-      >
-    <bookinfo>
-
-        <mediaobject>
-            <imageobject>
-                <imagedata fileref='figures/profile-title.png'
-                    format='SVG'
-                    align='left' scalefit='1' width='100%'/>
-            </imageobject>
-        </mediaobject>
-
-        <title>
-		  Yocto Project Profiling and Tracing Manual
-		</title>
-
-        <authorgroup>
-            <author>
-                <affiliation>
-                    <orgname>&ORGNAME;</orgname>
-                </affiliation>
-                <email>&ORGEMAIL;</email>
-            </author>
-        </authorgroup>
-
-        <revhistory>
-            <revision>
-                <revnumber>1.4</revnumber>
-                <date>April 2013</date>
-                <revremark>The initial document released with the Yocto Project 1.4 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.5</revnumber>
-                <date>October 2013</date>
-                <revremark>Released with the Yocto Project 1.5 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.6</revnumber>
-                <date>April 2014</date>
-                <revremark>Released with the Yocto Project 1.6 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.7</revnumber>
-                <date>October 2014</date>
-                <revremark>Released with the Yocto Project 1.7 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.8</revnumber>
-                <date>April 2015</date>
-                <revremark>Released with the Yocto Project 1.8 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.0</revnumber>
-                <date>October 2015</date>
-                <revremark>Released with the Yocto Project 2.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.1</revnumber>
-                <date>April 2016</date>
-                <revremark>Released with the Yocto Project 2.1 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.2</revnumber>
-                <date>October 2016</date>
-                <revremark>Released with the Yocto Project 2.2 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.3</revnumber>
-                <date>May 2017</date>
-                <revremark>Released with the Yocto Project 2.3 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.4</revnumber>
-                <date>October 2017</date>
-                <revremark>Released with the Yocto Project 2.4 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.5</revnumber>
-                <date>May 2018</date>
-                <revremark>Released with the Yocto Project 2.5 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.6</revnumber>
-                <date>November 2018</date>
-                <revremark>Released with the Yocto Project 2.6 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.7</revnumber>
-                <date>May 2019</date>
-                <revremark>Released with the Yocto Project 2.7 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>3.0</revnumber>
-                <date>October 2019</date>
-                <revremark>Released with the Yocto Project 3.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>3.1</revnumber>
-                <date>&REL_MONTH_YEAR;</date>
-                <revremark>Released with the Yocto Project 3.1 Release.</revremark>
-            </revision>
-        </revhistory>
-
-    <copyright>
-     <year>&COPYRIGHT_YEAR;</year>
-      <holder>Linux Foundation</holder>
-    </copyright>
-
-    <legalnotice>
-      <para>
-          Permission is granted to copy, distribute and/or modify this document under
-          the terms of the <ulink type="http" url="http://creativecommons.org/licenses/by-sa/2.0/uk/">
-          Creative Commons Attribution-Share Alike 2.0 UK: England &amp; Wales</ulink> as published by
-          Creative Commons.
-      </para>
-           <note><title>Manual Notes</title>
-               <itemizedlist>
-                   <listitem><para>
-                       This version of the
-                       <emphasis>Yocto Project Profiling and Tracing Manual</emphasis>
-                       is for the &YOCTO_DOC_VERSION; release of the
-                       Yocto Project.
-                       To be sure you have the latest version of the manual
-                       for this release, go to the
-                       <ulink url='&YOCTO_DOCS_URL;'>Yocto Project documentation page</ulink>
-                       and select the manual from that site.
-                       Manuals from the site are more up-to-date than manuals
-                       derived from the Yocto Project released TAR files.
-                       </para></listitem>
-                   <listitem><para>
-                       If you located this manual through a web search, the
-                       version of the manual might not be the one you want
-                       (e.g. the search might have returned a manual much
-                       older than the Yocto Project version with which you
-                       are working).
-                       You can see all Yocto Project major releases by
-                       visiting the
-                       <ulink url='&YOCTO_WIKI_URL;/wiki/Releases'>Releases</ulink>
-                       page.
-                       If you need a version of this manual for a different
-                       Yocto Project release, visit the
-                       <ulink url='&YOCTO_DOCS_URL;'>Yocto Project documentation page</ulink>
-                       and select the manual set by using the
-                       "ACTIVE RELEASES DOCUMENTATION" or "DOCUMENTS ARCHIVE"
-                       pull-down menus.
-                       </para></listitem>
-                   <listitem>
-                       <para>
-                       To report any inaccuracies or problems with this
-                       (or any other Yocto Project) manual, send an email to
-                       the Yocto Project documentation mailing list at
-                       <filename>docs@lists.yoctoproject.org</filename> or
-                       log into the freenode <filename>#yocto</filename> channel.
-                       </para>
-                   </listitem>
-               </itemizedlist>
-           </note>
-    </legalnotice>
-
-    </bookinfo>
-
-    <xi:include href="profile-manual-intro.xml"/>
-
-    <xi:include href="profile-manual-arch.xml"/>
-
-    <xi:include href="profile-manual-usage.xml"/>
-
-    <xi:include href="profile-manual-examples.xml"/>
-
-</book>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/ref-manual/faq.rst b/poky/documentation/ref-manual/faq.rst
index 2d2aaad..6985282 100644
--- a/poky/documentation/ref-manual/faq.rst
+++ b/poky/documentation/ref-manual/faq.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ***
 FAQ
diff --git a/poky/documentation/ref-manual/faq.xml b/poky/documentation/ref-manual/faq.xml
deleted file mode 100644
index 2f8fcf3..0000000
--- a/poky/documentation/ref-manual/faq.xml
+++ /dev/null
@@ -1,836 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='faq'>
-<title>FAQ</title>
-<qandaset>
-    <qandaentry>
-        <question>
-            <para>
-                How does Poky differ from <ulink url='&OE_HOME_URL;'>OpenEmbedded</ulink>?
-            </para>
-        </question>
-        <answer>
-            <para>
-                The term "<link link='poky'>Poky</link>"
-                refers to the specific reference build system that
-                the Yocto Project provides.
-                Poky is based on <link linkend='oe-core'>OE-Core</link>
-                and <link linkend='bitbake-term'>BitBake</link>.
-                Thus, the generic term used here for the build system is
-                the "OpenEmbedded build system."
-                Development in the Yocto Project using Poky is closely tied to OpenEmbedded, with
-                changes always being merged to OE-Core or BitBake first before being pulled back
-                into Poky.
-                This practice benefits both projects immediately.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para id='faq-not-meeting-requirements'>
-                My development system does not meet the
-                required Git, tar, and Python versions.
-                In particular, I do not have Python 3.5.0 or greater.
-                Can I still use the Yocto Project?
-            </para>
-        </question>
-        <answer>
-            <para>
-                You can get the required tools on your host development
-                system a couple different ways (i.e. building a tarball or
-                downloading a tarball).
-                See the
-                "<link linkend='required-git-tar-python-and-gcc-versions'>Required Git, tar, Python and gcc Versions</link>"
-                section for steps on how to update your build tools.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                How can you claim Poky / OpenEmbedded-Core is stable?
-            </para>
-        </question>
-        <answer>
-            <para>
-                There are three areas that help with stability;
-                <itemizedlist>
-                    <listitem><para>The Yocto Project team keeps
-                        <link linkend='oe-core'>OE-Core</link> small
-                        and focused, containing around 830 recipes as opposed to the thousands
-                        available in other OpenEmbedded community layers.
-                        Keeping it small makes it easy to test and maintain.</para></listitem>
-                    <listitem><para>The Yocto Project team runs manual and automated tests
-                        using a small, fixed set of reference hardware as well as emulated
-                        targets.</para></listitem>
-                    <listitem><para>The Yocto Project uses an autobuilder,
-                        which provides continuous build and integration tests.</para></listitem>
-                </itemizedlist>
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                How do I get support for my board added to the Yocto Project?
-            </para>
-        </question>
-        <answer>
-            <para>
-                Support for an additional board is added by creating a
-                Board Support Package (BSP) layer for it.
-                For more information on how to create a BSP layer, see the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and Creating Layers</ulink>"
-                section in the Yocto Project Development Tasks Manual and the
-                <ulink url='&YOCTO_DOCS_BSP_URL;'>Yocto Project Board Support Package (BSP) Developer's Guide</ulink>.
-            </para>
-            <para>
-                Usually, if the board is not completely exotic, adding support in
-                the Yocto Project is fairly straightforward.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                Are there any products built using the OpenEmbedded build system?
-            </para>
-        </question>
-        <answer>
-            <para>
-                The software running on the <ulink url='http://vernier.com/labquest/'>Vernier LabQuest</ulink>
-                is built using the OpenEmbedded build system.
-                See the <ulink url='http://www.vernier.com/products/interfaces/labq/'>Vernier LabQuest</ulink>
-                website for more information.
-                There are a number of pre-production devices using the OpenEmbedded build system
-                and the Yocto Project team
-                announces them as soon as they are released.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                What does the OpenEmbedded build system produce as output?
-            </para>
-        </question>
-        <answer>
-            <para>
-                Because you can use the same set of recipes to create output of
-                various formats, the output of an OpenEmbedded build depends on
-                how you start it.
-                Usually, the output is a flashable image ready for the target
-                device.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                How do I add my package to the Yocto Project?
-            </para>
-        </question>
-        <answer>
-            <para>
-                To add a package, you need to create a BitBake recipe.
-                For information on how to create a BitBake recipe, see the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#new-recipe-writing-a-new-recipe'>Writing a New Recipe</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                Do I have to reflash my entire board with a new Yocto Project image when recompiling
-                a package?
-            </para>
-        </question>
-        <answer>
-            <para>
-                The OpenEmbedded build system can build packages in various
-                formats such as IPK for OPKG, Debian package
-                (<filename>.deb</filename>), or RPM.
-                You can then upgrade the packages using the package tools on
-                the device, much like on a desktop distribution such as
-                Ubuntu or Fedora.
-                However, package management on the target is entirely optional.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                I see the error '<filename>chmod: XXXXX new permissions are r-xrwxrwx, not r-xr-xr-x</filename>'.
-                What is wrong?
-            </para>
-        </question>
-        <answer>
-            <para>
-                You are probably running the build on an NTFS filesystem.
-                Use <filename>ext2</filename>, <filename>ext3</filename>, or <filename>ext4</filename> instead.
-            </para>
-        </answer>
-    </qandaentry>
-
-<!--    <qandaentry>
-        <question>
-            <para>
-                How do I make the Yocto Project work in RHEL/CentOS?
-            </para>
-        </question>
-        <answer>
-            <para>
-                To get the Yocto Project working under RHEL/CentOS 5.1 you need to first
-                install some required packages.
-                The standard CentOS packages needed are:
-                <itemizedlist>
-                    <listitem><para>"Development tools" (selected during installation)</para></listitem>
-                    <listitem><para><filename>texi2html</filename></para></listitem>
-                    <listitem><para><filename>compat-gcc-34</filename></para></listitem>
-                </itemizedlist>
-                On top of these, you need the following external packages:
-                <itemizedlist>
-                    <listitem><para><filename>python-sqlite2</filename> from
-                        <ulink url='http://dag.wieers.com/rpm/packages/python-sqlite2/'>DAG repository</ulink>
-                        </para></listitem>
-                    <listitem><para><filename>help2man</filename> from
-                        <ulink url='http://centos.karan.org/el4/extras/stable/x86_64/RPMS/repodata/repoview/help2man-0-1.33.1-2.html'>Karan repository</ulink></para></listitem>
-                </itemizedlist>
-            </para>
-
-            <para>
-                Once these packages are installed, the OpenEmbedded build system will be able
-                to build standard images.
-                However, there might be a problem with the QEMU emulator segfaulting.
-                You can either disable the generation of binary locales by setting
-                <filename><link linkend='var-ENABLE_BINARY_LOCALE_GENERATION'>ENABLE_BINARY_LOCALE_GENERATION</link>
-                </filename> to "0" or by removing the <filename>linux-2.6-execshield.patch</filename>
-                from the kernel and rebuilding it since that is the patch that causes the problems with QEMU.
-            </para>
-
-            <note>
-                <para>For information on distributions that the Yocto Project
-                uses during validation, see the
-                <ulink url='&YOCTO_WIKI_URL;/wiki/Distribution_Support'>Distribution Support</ulink>
-                Wiki page.</para>
-                <para>For notes about using the Yocto Project on a RHEL 4-based
-                host, see the
-                <ulink url='&YOCTO_WIKI_URL;/wiki/BuildingOnRHEL4'>Building on RHEL4</ulink>
-                Wiki page.</para>
-            </note>
-        </answer>
-    </qandaentry> -->
-
-    <qandaentry>
-        <question>
-            <para>
-                I see lots of 404 responses for files when the OpenEmbedded
-                build system is trying to download sources.
-                Is something wrong?
-            </para>
-        </question>
-        <answer>
-            <para>
-                Nothing is wrong.
-                The OpenEmbedded build system checks any configured source mirrors before downloading
-                from the upstream sources.
-                The build system does this searching for both source archives and
-                pre-checked out versions of SCM-managed software.
-                These checks help in large installations because it can reduce load on the SCM servers
-                themselves.
-                The address above is one of the default mirrors configured into the
-                build system.
-                Consequently, if an upstream source disappears, the team
-                can place sources there so builds continue to work.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                I have machine-specific data in a package for one machine only but the package is
-                being marked as machine-specific in all cases, how do I prevent this?
-            </para>
-        </question>
-        <answer>
-            <para>
-                Set <filename><link linkend='var-SRC_URI_OVERRIDES_PACKAGE_ARCH'>SRC_URI_OVERRIDES_PACKAGE_ARCH</link>
-                </filename> = "0" in the <filename>.bb</filename> file but make sure the package is
-                manually marked as
-                machine-specific for the case that needs it.
-                The code that handles
-                <filename>SRC_URI_OVERRIDES_PACKAGE_ARCH</filename> is in
-                the <filename>meta/classes/base.bbclass</filename> file.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para id='i-am-behind-a-firewall-and-need-to-use-a-proxy-server'>
-                I'm behind a firewall and need to use a proxy server. How do I do that?
-            </para>
-        </question>
-        <answer>
-            <para>
-                Most source fetching by the OpenEmbedded build system is done
-                by <filename>wget</filename> and you therefore need to specify
-                the proxy settings in a <filename>.wgetrc</filename> file,
-                which can be in your home directory if you are a single user
-                or can be in <filename>/usr/local/etc/wgetrc</filename> as
-                a global user file.
-            </para>
-
-            <para>
-                Following is the applicable code for setting various proxy
-                types in the <filename>.wgetrc</filename> file.
-                By default, these settings are disabled with comments.
-                To use them, remove the comments:
-                <literallayout class='monospaced'>
-     # You can set the default proxies for Wget to use for http, https, and ftp.
-     # They will override the value in the environment.
-     #https_proxy = http://proxy.yoyodyne.com:18023/
-     #http_proxy = http://proxy.yoyodyne.com:18023/
-     #ftp_proxy = http://proxy.yoyodyne.com:18023/
-
-     # If you do not want to use proxy at all, set this to off.
-     #use_proxy = on
-                </literallayout>
-                The Yocto Project also includes a
-                <filename>meta-poky/conf/site.conf.sample</filename> file that
-                shows how to configure CVS and Git proxy servers if needed.
-                For more information on setting up various proxy types and
-                configuring proxy servers, see the
-                "<ulink url='&YOCTO_WIKI_URL;/wiki/Working_Behind_a_Network_Proxy'>Working Behind a Network Proxy</ulink>"
-                Wiki page.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                What's the difference between <replaceable>target</replaceable> and <replaceable>target</replaceable><filename>-native</filename>?
-            </para>
-        </question>
-        <answer>
-            <para>
-                The <filename>*-native</filename> targets are designed to run on the system
-                being used for the build.
-                These are usually tools that are needed to assist the build in some way such as
-                <filename>quilt-native</filename>, which is used to apply patches.
-                The non-native version is the one that runs on the target device.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                I'm seeing random build failures. Help?!
-            </para>
-        </question>
-        <answer>
-            <para>
-                If the same build is failing in totally different and random
-                ways, the most likely explanation is:
-                <itemizedlist>
-                    <listitem><para>The hardware you are running the build on
-                        has some problem.</para></listitem>
-                    <listitem><para>You are running the build under
-                        virtualization, in which case the virtualization
-                        probably has bugs.</para></listitem>
-                </itemizedlist>
-                The OpenEmbedded build system processes a massive amount of
-                data that causes lots of network, disk and CPU activity and
-                is sensitive to even single-bit failures in any of these areas.
-                True random failures have always been traced back to hardware
-                or virtualization issues.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                When I try to build a native recipe, the build fails with <filename>iconv.h</filename> problems.
-            </para>
-        </question>
-        <answer>
-            <para>
-                If you get an error message that indicates GNU
-                <filename>libiconv</filename> is not in use but
-                <filename>iconv.h</filename> has been included from
-                <filename>libiconv</filename>, you need to check to see if
-                you have a previously installed version of the header file
-                in <filename>/usr/local/include</filename>.
-                <literallayout class='monospaced'>
-     #error GNU libiconv not in use but included iconv.h is from libiconv
-                </literallayout>
-                If you find a previously installed file, you should either
-                uninstall it or temporarily rename it and try the build again.
-            </para>
-
-            <para>
-                This issue is just a single manifestation of "system
-                leakage" issues caused when the OpenEmbedded build system
-                finds and uses previously installed files during a native
-                build.
-                This type of issue might not be limited to
-                <filename>iconv.h</filename>.
-                Be sure that leakage cannot occur from
-                <filename>/usr/local/include</filename> and
-                <filename>/opt</filename> locations.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                What do we need to ship for license compliance?
-            </para>
-        </question>
-        <answer>
-            <para>
-                This is a difficult question and you need to consult your lawyer
-                for the answer for your specific case.
-                It is worth bearing in mind that for GPL compliance, there needs
-                to be enough information shipped to allow someone else to
-                rebuild and produce the same end result you are shipping.
-                This means sharing the source code, any patches applied to it,
-                and also any configuration information about how that package
-                was configured and built.
-            </para>
-
-            <para>
-                You can find more information on licensing in the
-                "<ulink url='&YOCTO_DOCS_OM_URL;#licensing'>Licensing</ulink>"
-                section in the Yocto Project Overview and Concepts Manual
-                and also in the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#maintaining-open-source-license-compliance-during-your-products-lifecycle'>Maintaining Open Source License Compliance During Your Product's Lifecycle</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                How do I disable the cursor on my touchscreen device?
-            </para>
-        </question>
-        <answer>
-            <para>
-                You need to create a form factor file as described in the
-                "<ulink url='&YOCTO_DOCS_BSP_URL;#bsp-filelayout-misc-recipes'>Miscellaneous BSP-Specific Recipe Files</ulink>"
-                section in the Yocto Project Board Support Packages (BSP)
-                Developer's Guide.
-                Set the <filename>HAVE_TOUCHSCREEN</filename> variable equal to
-                one as follows:
-                <literallayout class='monospaced'>
-     HAVE_TOUCHSCREEN=1
-                </literallayout>
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                How do I make sure connected network interfaces are brought up by default?
-            </para>
-        </question>
-        <answer>
-            <para>
-                The default interfaces file provided by the netbase recipe does not
-                automatically bring up network interfaces.
-                Therefore, you will need to add a BSP-specific netbase that includes an interfaces
-                file.
-                See the "<ulink url='&YOCTO_DOCS_BSP_URL;#bsp-filelayout-misc-recipes'>Miscellaneous BSP-Specific Recipe Files</ulink>"
-                section in the Yocto Project Board Support Packages (BSP)
-                Developer's Guide for information on creating these types of
-                miscellaneous recipe files.
-            </para>
-            <para>
-                For example, add the following files to your layer:
-                <literallayout class='monospaced'>
-     meta-MACHINE/recipes-bsp/netbase/netbase/MACHINE/interfaces
-     meta-MACHINE/recipes-bsp/netbase/netbase_5.0.bbappend
-                </literallayout>
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                How do I create images with more free space?
-            </para>
-        </question>
-        <answer>
-            <para>
-                By default, the OpenEmbedded build system creates images
-                that are 1.3 times the size of the populated root filesystem.
-                To affect the image size, you need to set various
-                configurations:
-                <itemizedlist>
-                    <listitem><para><emphasis>Image Size:</emphasis>
-                        The OpenEmbedded build system uses the
-                        <link linkend='var-IMAGE_ROOTFS_SIZE'><filename>IMAGE_ROOTFS_SIZE</filename></link>
-                        variable to define the size of the image in Kbytes.
-                        The build system determines the size by taking into
-                        account the initial root filesystem size before any
-                        modifications such as requested size for the image and
-                        any requested additional free disk space to be
-                        added to the image.</para></listitem>
-                    <listitem><para><emphasis>Overhead:</emphasis>
-                        Use the
-                        <link linkend='var-IMAGE_OVERHEAD_FACTOR'><filename>IMAGE_OVERHEAD_FACTOR</filename></link>
-                        variable to define the multiplier that the build system
-                        applies to the initial image size, which is 1.3 by
-                        default.</para></listitem>
-                    <listitem><para><emphasis>Additional Free Space:</emphasis>
-                        Use the
-                        <link linkend='var-IMAGE_ROOTFS_EXTRA_SPACE'><filename>IMAGE_ROOTFS_EXTRA_SPACE</filename></link>
-                        variable to add additional free space to the image.
-                        The build system adds this space to the image after
-                        it determines its
-                        <filename>IMAGE_ROOTFS_SIZE</filename>.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                Why don't you support directories with spaces in the pathnames?
-            </para>
-        </question>
-        <answer>
-            <para>
-                The Yocto Project team has tried to do this before but too
-                many of the tools the OpenEmbedded build system depends on,
-                such as <filename>autoconf</filename>, break when they find
-                spaces in pathnames.
-                Until that situation changes, the team will not support spaces
-                in pathnames.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                How do I use an external toolchain?
-            </para>
-        </question>
-        <answer>
-            <para>
-                The toolchain configuration is very flexible and customizable.
-                It is primarily controlled with the
-                <filename><link linkend='var-TCMODE'>TCMODE</link></filename>
-                variable.
-                This variable controls which <filename>tcmode-*.inc</filename>
-                file to include from the
-                <filename>meta/conf/distro/include</filename> directory within
-                the
-                <link linkend='source-directory'>Source Directory</link>.
-            </para>
-
-            <para>
-                The default value of <filename>TCMODE</filename> is "default",
-                which tells the OpenEmbedded build system to use its internally
-                built toolchain (i.e. <filename>tcmode-default.inc</filename>).
-                However, other patterns are accepted.
-                In particular, "external-*" refers to external toolchains.
-                One example is the Sourcery G++ Toolchain.
-                The support for this toolchain resides in the separate
-                <filename>meta-sourcery</filename> layer at
-                <ulink url='http://github.com/MentorEmbedded/meta-sourcery/'></ulink>.
-            </para>
-
-            <para>
-                In addition to the toolchain configuration, you also need a
-                corresponding toolchain recipe file.
-                This recipe file needs to package up any pre-built objects in
-                the toolchain such as <filename>libgcc</filename>,
-                <filename>libstdcc++</filename>, any locales, and
-                <filename>libc</filename>.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para id='how-does-the-yocto-project-obtain-source-code-and-will-it-work-behind-my-firewall-or-proxy-server'>
-                How does the OpenEmbedded build system obtain source code and
-                will it work behind my firewall or proxy server?
-            </para>
-        </question>
-        <answer>
-            <para>
-                The way the build system obtains source code is highly
-                configurable.
-                You can setup the build system to get source code in most
-                environments if HTTP transport is available.
-            </para>
-            <para>
-                When the build system searches for source code, it first
-                tries the local download directory.
-                If that location fails, Poky tries
-                <link linkend='var-PREMIRRORS'><filename>PREMIRRORS</filename></link>,
-                the upstream source, and then
-                <link linkend='var-MIRRORS'><filename>MIRRORS</filename></link>
-                in that order.
-            </para>
-            <para>
-                Assuming your distribution is "poky", the OpenEmbedded build
-                system uses the Yocto Project source
-                <filename>PREMIRRORS</filename> by default for SCM-based
-                sources, upstreams for normal tarballs, and then falls back
-                to a number of other mirrors including the Yocto Project
-                source mirror if those fail.
-            </para>
-            <para>
-                As an example, you could add a specific server for the
-                build system to attempt before any others by adding something
-                like the following to the <filename>local.conf</filename>
-                configuration file:
-                <literallayout class='monospaced'>
-     PREMIRRORS_prepend = "\
-     git://.*/.* http://www.yoctoproject.org/sources/ \n \
-     ftp://.*/.* http://www.yoctoproject.org/sources/ \n \
-     http://.*/.* http://www.yoctoproject.org/sources/ \n \
-     https://.*/.* http://www.yoctoproject.org/sources/ \n"
-                </literallayout>
-            </para>
-            <para>
-                These changes cause the build system to intercept Git, FTP,
-                HTTP, and HTTPS requests and direct them to the
-                <filename>http://</filename> sources mirror.
-                You can use <filename>file://</filename> URLs to point to
-                local directories or network shares as well.
-            </para>
-            <para>
-                Aside from the previous technique, these options also exist:
-                <literallayout class='monospaced'>
-     BB_NO_NETWORK = "1"
-                </literallayout>
-                This statement tells BitBake to issue an error instead of
-                trying to access the Internet.
-                This technique is useful if you want to ensure code builds
-                only from local sources.
-            </para>
-            <para>
-                Here is another technique:
-                <literallayout class='monospaced'>
-     BB_FETCH_PREMIRRORONLY = "1"
-                </literallayout>
-                This statement limits the build system to pulling source
-                from the <filename>PREMIRRORS</filename> only.
-                Again, this technique is useful for reproducing builds.
-            </para>
-            <para>
-                Here is another technique:
-                <literallayout class='monospaced'>
-     BB_GENERATE_MIRROR_TARBALLS = "1"
-                </literallayout>
-                This statement tells the build system to generate mirror
-                tarballs.
-                This technique is useful if you want to create a mirror server.
-                If not, however, the technique can simply waste time during
-                the build.
-            </para>
-            <para>
-                Finally, consider an example where you are behind an
-                HTTP-only firewall.
-                You could make the following changes to the
-                <filename>local.conf</filename> configuration file as long as
-                the <filename>PREMIRRORS</filename> server is current:
-                <literallayout class='monospaced'>
-     PREMIRRORS_prepend = "\
-     ftp://.*/.* http://www.yoctoproject.org/sources/ \n \
-     http://.*/.* http://www.yoctoproject.org/sources/ \n \
-     https://.*/.* http://www.yoctoproject.org/sources/ \n"
-     BB_FETCH_PREMIRRORONLY = "1"
-                </literallayout>
-                These changes would cause the build system to successfully
-                fetch source over HTTP and any network accesses to anything
-                other than the <filename>PREMIRRORS</filename> would fail.
-            </para>
-            <para>
-                The build system also honors the standard shell environment
-                variables <filename>http_proxy</filename>,
-                <filename>ftp_proxy</filename>,
-                <filename>https_proxy</filename>, and
-                <filename>all_proxy</filename> to redirect requests through
-                proxy servers.
-            </para>
-            <note>
-                 You can find more information on the
-                 "<ulink url='&YOCTO_WIKI_URL;/wiki/Working_Behind_a_Network_Proxy'>Working Behind a Network Proxy</ulink>"
-                 Wiki page.
-            </note>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                Can I get rid of build output so I can start over?
-            </para>
-        </question>
-        <answer>
-            <para>
-                Yes - you can easily do this.
-                When you use BitBake to build an image, all the build output
-                goes into the directory created when you run the
-                build environment setup script (i.e.
-                <link linkend='structure-core-script'><filename>&OE_INIT_FILE;</filename></link>).
-                By default, this
-                <link linkend='build-directory'>Build Directory</link>
-                is named <filename>build</filename> but can be named
-                anything you want.
-            </para>
-
-            <para>
-                Within the Build Directory, is the <filename>tmp</filename>
-                directory.
-                To remove all the build output yet preserve any source code or
-                downloaded files from previous builds, simply remove the
-                <filename>tmp</filename> directory.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                Why do <filename>${bindir}</filename> and <filename>${libdir}</filename> have strange values for <filename>-native</filename> recipes?
-            </para>
-        </question>
-        <answer>
-            <para>
-                Executables and libraries might need to be used from a
-                directory other than the directory into which they were
-                initially installed.
-                Complicating this situation is the fact that sometimes these
-                executables and libraries are compiled with the expectation
-                of being run from that initial installation target directory.
-                If this is the case, moving them causes problems.
-            </para>
-
-            <para>
-                This scenario is a fundamental problem for package maintainers
-                of mainstream Linux distributions as well as for the
-                OpenEmbedded build system.
-                As such, a well-established solution exists.
-                Makefiles, Autotools configuration scripts, and other build
-                systems are expected to respect environment variables such as
-                <filename>bindir</filename>, <filename>libdir</filename>,
-                and <filename>sysconfdir</filename> that indicate where
-                executables, libraries, and data reside when a program is
-                actually run.
-                They are also expected to respect a
-                <filename>DESTDIR</filename> environment variable, which is
-                prepended to all the other variables when the build system
-                actually installs the files.
-                It is understood that the program does not actually run from
-                within <filename>DESTDIR</filename>.
-            </para>
-
-            <para>
-                When the OpenEmbedded build system uses a recipe to build a
-                target-architecture program (i.e. one that is intended for
-                inclusion on the image being built), that program eventually
-                runs from the root file system of that image.
-                Thus, the build system provides a value of "/usr/bin" for
-                <filename>bindir</filename>, a value of "/usr/lib" for
-                <filename>libdir</filename>, and so forth.
-            </para>
-
-            <para>
-                Meanwhile, <filename>DESTDIR</filename> is a path within the
-                <link linkend='build-directory'>Build Directory</link>.
-                However, when the recipe builds a native program (i.e. one
-                that is intended to run on the build machine), that program
-                is never installed directly to the build machine's root
-                file system.
-                Consequently, the build system uses paths within the Build
-                Directory for <filename>DESTDIR</filename>,
-                <filename>bindir</filename> and related variables.
-                To better understand this, consider the following two paths
-                where the first is relatively normal and the second is not:
-                <note>
-                    Due to these lengthy examples, the paths are artificially
-                    broken across lines for readability.
-                </note>
-                <literallayout class='monospaced'>
-     /home/maxtothemax/poky-bootchart2/build/tmp/work/i586-poky-linux/zlib/
-        1.2.8-r0/sysroot-destdir/usr/bin
-
-     /home/maxtothemax/poky-bootchart2/build/tmp/work/x86_64-linux/
-        zlib-native/1.2.8-r0/sysroot-destdir/home/maxtothemax/poky-bootchart2/
-        build/tmp/sysroots/x86_64-linux/usr/bin
-                </literallayout>
-                Even if the paths look unusual, they both are correct -
-                the first for a target and the second for a native recipe.
-                These paths are a consequence of the
-                <filename>DESTDIR</filename> mechanism and while they
-                appear strange, they are correct and in practice very effective.
-            </para>
-        </answer>
-    </qandaentry>
-
-    <qandaentry>
-        <question>
-            <para>
-                The files provided by my <filename>*-native</filename> recipe do
-                not appear to be available to other recipes.
-                Files are missing from the native sysroot, my recipe is
-                installing to the wrong place, or I am getting permissions
-                errors during the do_install task in my recipe! What is wrong?
-            </para>
-        </question>
-        <answer>
-            <para>
-                This situation results when a build system does
-                not recognize the environment variables supplied to it by
-                <link linkend='bitbake-term'>BitBake</link>.
-                The incident that prompted this FAQ entry involved a Makefile
-                that used an environment variable named
-                <filename>BINDIR</filename> instead of the more standard
-                variable <filename>bindir</filename>.
-                The makefile's hardcoded default value of "/usr/bin" worked
-                most of the time, but not for the recipe's
-                <filename>-native</filename> variant.
-                For another example, permissions errors might be caused
-                by a Makefile that ignores <filename>DESTDIR</filename> or uses
-                a different name for that environment variable.
-                Check the the build system to see if these kinds of
-                issues exist.
-            </para>
-        </answer>
-    </qandaentry>
-
-</qandaset>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/ref-manual/history.rst b/poky/documentation/ref-manual/history.rst
index e962d92..dc0a2ae 100644
--- a/poky/documentation/ref-manual/history.rst
+++ b/poky/documentation/ref-manual/history.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ***********************
 Manual Revision History
diff --git a/poky/documentation/ref-manual/migration-1.3.rst b/poky/documentation/ref-manual/migration-1.3.rst
index ebbc238..5793f9b 100644
--- a/poky/documentation/ref-manual/migration-1.3.rst
+++ b/poky/documentation/ref-manual/migration-1.3.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 Moving to the Yocto Project 1.3 Release
 =======================================
diff --git a/poky/documentation/ref-manual/migration.rst b/poky/documentation/ref-manual/migration.rst
index 6c6119d..20288b0 100644
--- a/poky/documentation/ref-manual/migration.rst
+++ b/poky/documentation/ref-manual/migration.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ******************************************
 Migrating to a Newer Yocto Project Release
diff --git a/poky/documentation/ref-manual/migration.xml b/poky/documentation/ref-manual/migration.xml
deleted file mode 100644
index d3d5b16..0000000
--- a/poky/documentation/ref-manual/migration.xml
+++ /dev/null
@@ -1,7301 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='migration'>
-<title>Migrating to a Newer Yocto Project Release</title>
-
-    <para>
-        This chapter provides information you can use to migrate work to a
-        newer Yocto Project release.  You can find the same information in the
-        release notes for a given release.
-    </para>
-
-<section id='general-migration-considerations'>
-    <title>General Migration Considerations</title>
-
-    <para>
-        Some considerations are not tied to a specific Yocto Project
-        release.
-        This section presents information you should consider when
-        migrating to any new Yocto Project release.
-        <itemizedlist>
-            <listitem><para><emphasis>Dealing with Customized Recipes</emphasis>:
-                Issues could arise if you take older recipes that contain
-                customizations and simply copy them forward expecting them
-                to work after you migrate to new Yocto Project metadata.
-                For example, suppose you have a recipe in your layer that is
-                a customized version of a core recipe copied from the earlier
-                release, rather than through the use of an append file.
-                When you migrate to a newer version of Yocto Project, the
-                metadata (e.g. perhaps an include file used by the recipe)
-                could have changed in a way that would break the build.
-                Say, for example, a function is removed from an include file
-                and the customized recipe tries to call that function.
-                </para>
-
-                <para>You could "forward-port" all your customizations in your
-                recipe so that everything works for the new release.
-                However, this is not the optimal solution as you would have
-                to repeat this process with each new release if changes
-                occur that give rise to problems.</para>
-
-                <para>The better solution (where practical) is to use append
-                files (<filename>*.bbappend</filename>) to capture any
-                customizations you want to make to a recipe.
-                Doing so, isolates your changes from the main recipe making
-                them much more manageable.
-                However, sometimes it is not practical to use an append
-                file.
-                A good example of this is when introducing a newer or older
-                version of a recipe in another layer.</para>
-                </listitem>
-            <listitem><para><emphasis>Updating Append Files</emphasis>:
-                Since append files generally only contain your customizations,
-                they often do not need to be adjusted for new releases.
-                However, if the <filename>.bbappend</filename> file is
-                specific to a particular version of the recipe (i.e. its
-                name does not use the % wildcard) and the version of the
-                recipe to which it is appending has changed, then you will
-                at a minimum need to rename the append file to match the
-                name of the recipe file.
-                A mismatch between an append file and its corresponding
-                recipe file (<filename>.bb</filename>) will
-                trigger an error during parsing.</para>
-                <para>Depending on the type of customization the append file
-                applies, other incompatibilities might occur when you
-                upgrade.
-                For example, if your append file applies a patch and the
-                recipe to which it is appending is updated to a newer
-                version, the patch might no longer apply.
-                If this is the case and assuming the patch is still needed,
-                you must modify the patch file so that it does apply.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='moving-to-the-yocto-project-1.3-release'>
-    <title>Moving to the Yocto Project 1.3 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 1.3 Release from the prior release.
-    </para>
-
-    <section id='1.3-local-configuration'>
-        <title>Local Configuration</title>
-
-        <para>
-            Differences include changes for
-            <link linkend='var-SSTATE_MIRRORS'><filename>SSTATE_MIRRORS</filename></link>
-            and <filename>bblayers.conf</filename>.
-        </para>
-
-        <section id='migration-1.3-sstate-mirrors'>
-            <title>SSTATE_MIRRORS</title>
-
-            <para>
-                The shared state cache (sstate-cache), as pointed to by
-                <link linkend='var-SSTATE_DIR'><filename>SSTATE_DIR</filename></link>,
-                by default now has two-character subdirectories to prevent
-                issues arising from too many files in the same directory.
-                Also, native sstate-cache packages, which are built to run
-                on the host system, will go into a subdirectory named using
-                the distro ID string.
-                If you copy the newly structured sstate-cache to a mirror
-                location (either local or remote) and then point to it in
-                <link linkend='var-SSTATE_MIRRORS'><filename>SSTATE_MIRRORS</filename></link>,
-                you need to append "PATH" to the end of the mirror URL so that
-                the path used by BitBake before the mirror substitution is
-                appended to the path used to access the mirror.
-                Here is an example:
-                <literallayout class='monospaced'>
-     SSTATE_MIRRORS = "file://.* http://<replaceable>someserver</replaceable>.tld/share/sstate/PATH"
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='migration-1.3-bblayers-conf'>
-            <title>bblayers.conf</title>
-
-            <para>
-                The <filename>meta-yocto</filename> layer consists of two parts
-                that correspond to the Poky reference distribution and the
-                reference hardware Board Support Packages (BSPs), respectively:
-                <filename>meta-yocto</filename> and
-                <filename>meta-yocto-bsp</filename>.
-                When running BitBake for the first time after upgrading,
-                your <filename>conf/bblayers.conf</filename> file will be
-                updated to handle this change and you will be asked to
-                re-run or restart for the changes to take effect.
-            </para>
-        </section>
-    </section>
-
-    <section id='1.3-recipes'>
-        <title>Recipes</title>
-
-        <para>
-            Differences include changes for the following:
-            <itemizedlist>
-                <listitem><para>Python function whitespace</para></listitem>
-                <listitem><para><filename>proto=</filename> in <filename>SRC_URI</filename></para></listitem>
-                <listitem><para><filename>nativesdk</filename></para></listitem>
-                <listitem><para>Task recipes</para></listitem>
-                <listitem><para><filename>IMAGE_FEATURES</filename></para></listitem>
-                <listitem><para>Removed recipes</para></listitem>
-            </itemizedlist>
-        </para>
-
-        <section id='migration-1.3-python-function-whitespace'>
-            <title>Python Function Whitespace</title>
-
-            <para>
-                All Python functions must now use four spaces for indentation.
-                Previously, an inconsistent mix of spaces and tabs existed,
-                which made extending these functions using
-                <filename>_append</filename> or <filename>_prepend</filename>
-                complicated given that Python treats whitespace as
-                syntactically significant.
-                If you are defining or extending any Python functions (e.g.
-                <filename>populate_packages</filename>, <filename>do_unpack</filename>,
-                <filename>do_patch</filename> and so forth) in custom recipes
-                or classes, you need to ensure you are using consistent
-                four-space indentation.
-            </para>
-        </section>
-
-        <section id='migration-1.3-proto=-in-src-uri'>
-            <title>proto= in SRC_URI</title>
-
-            <para>
-                Any use of <filename>proto=</filename> in
-                <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>
-                needs to be changed to <filename>protocol=</filename>.
-                In particular, this applies to the following URIs:
-                <itemizedlist>
-                    <listitem><para><filename>svn://</filename></para></listitem>
-                    <listitem><para><filename>bzr://</filename></para></listitem>
-                    <listitem><para><filename>hg://</filename></para></listitem>
-                    <listitem><para><filename>osc://</filename></para></listitem>
-                </itemizedlist>
-                Other URIs were already using <filename>protocol=</filename>.
-                This change improves consistency.
-            </para>
-        </section>
-
-        <section id='migration-1.3-nativesdk'>
-            <title>nativesdk</title>
-
-            <para>
-                The suffix <filename>nativesdk</filename> is now implemented
-                as a prefix, which simplifies a lot of the packaging code for
-                <filename>nativesdk</filename> recipes.
-                All custom <filename>nativesdk</filename> recipes, which are
-                relocatable packages that are native to
-                <link linkend='var-SDK_ARCH'><filename>SDK_ARCH</filename></link>,
-                and any references need to be updated to use
-                <filename>nativesdk-*</filename> instead of
-                <filename>*-nativesdk</filename>.
-            </para>
-        </section>
-
-        <section id='migration-1.3-task-recipes'>
-            <title>Task Recipes</title>
-
-            <para>
-                "Task" recipes are now known as "Package groups" and have
-                been renamed from <filename>task-*.bb</filename> to
-                <filename>packagegroup-*.bb</filename>.
-                Existing references to the previous <filename>task-*</filename>
-                names should work in most cases as there is an automatic
-                upgrade path for most packages.
-                However, you should update references in your own recipes and
-                configurations as they could be removed in future releases.
-                You should also rename any custom <filename>task-*</filename>
-                recipes to <filename>packagegroup-*</filename>, and change
-                them to inherit <filename>packagegroup</filename> instead of
-                <filename>task</filename>, as well as taking the opportunity
-                to remove anything now handled by
-                <filename>packagegroup.bbclass</filename>, such as providing
-                <filename>-dev</filename> and <filename>-dbg</filename>
-                packages, setting
-                <link linkend='var-LIC_FILES_CHKSUM'><filename>LIC_FILES_CHKSUM</filename></link>,
-                and so forth.
-                See the
-                "<link linkend='ref-classes-packagegroup'><filename>packagegroup.bbclass</filename></link>"
-                section for further details.
-            </para>
-        </section>
-
-        <section id='migration-1.3-image-features'>
-            <title>IMAGE_FEATURES</title>
-
-            <para>
-                Image recipes that previously included "apps-console-core"
-                in <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>
-                should now include "splash" instead to enable the boot-up
-                splash screen.
-                Retaining "apps-console-core" will still include the splash
-                screen but generates a warning.
-                The "apps-x11-core" and "apps-x11-games"
-                <filename>IMAGE_FEATURES</filename> features have been removed.
-            </para>
-        </section>
-
-        <section id='migration-1.3-removed-recipes'>
-            <title>Removed Recipes</title>
-
-            <para>
-                The following recipes have been removed.
-                For most of them, it is unlikely that you would have any
-                references to them in your own
-                <link linkend='metadata'>Metadata</link>.
-                However, you should check your metadata against this list to be sure:
-                <itemizedlist>
-                    <listitem><para><emphasis><filename>libx11-trim</filename></emphasis>:
-                        Replaced by <filename>libx11</filename>, which has a negligible
-                        size difference with modern Xorg.</para></listitem>
-                    <listitem><para><emphasis><filename>xserver-xorg-lite</filename></emphasis>:
-                        Use <filename>xserver-xorg</filename>, which has a negligible
-                        size difference when DRI and GLX modules are not installed.</para></listitem>
-                    <listitem><para><emphasis><filename>xserver-kdrive</filename></emphasis>:
-                        Effectively unmaintained for many years.</para></listitem>
-                    <listitem><para><emphasis><filename>mesa-xlib</filename></emphasis>:
-                        No longer serves any purpose.</para></listitem>
-                    <listitem><para><emphasis><filename>galago</filename></emphasis>:
-                        Replaced by telepathy.</para></listitem>
-                    <listitem><para><emphasis><filename>gail</filename></emphasis>:
-                        Functionality was integrated into GTK+ 2.13.</para></listitem>
-                    <listitem><para><emphasis><filename>eggdbus</filename></emphasis>:
-                        No longer needed.</para></listitem>
-                    <listitem><para><emphasis><filename>gcc-*-intermediate</filename></emphasis>:
-                        The build has been restructured to avoid the need for
-                        this step.</para></listitem>
-                    <listitem><para><emphasis><filename>libgsmd</filename></emphasis>:
-                        Unmaintained for many years.
-                        Functionality now provided by
-                        <filename>ofono</filename> instead.</para></listitem>
-                    <listitem><para><emphasis>contacts, dates, tasks, eds-tools</emphasis>:
-                        Largely unmaintained PIM application suite.
-                        It has been moved to <filename>meta-gnome</filename>
-                        in <filename>meta-openembedded</filename>.</para></listitem>
-                </itemizedlist>
-                In addition to the previously listed changes, the
-                <filename>meta-demoapps</filename> directory has also been removed
-                because the recipes in it were not being maintained and many
-                had become obsolete or broken.
-                Additionally, these recipes were not parsed in the default configuration.
-                Many of these recipes are already provided in an updated and
-                maintained form within the OpenEmbedded community layers such as
-                <filename>meta-oe</filename> and <filename>meta-gnome</filename>.
-                For the remainder, you can now find them in the
-                <filename>meta-extras</filename> repository, which is in the
-                Yocto Project
-                <ulink url='&YOCTO_DOCS_OM_URL;#source-repositories'>Source Repositories</ulink>.
-            </para>
-        </section>
-    </section>
-
-    <section id='1.3-linux-kernel-naming'>
-        <title>Linux Kernel Naming</title>
-
-        <para>
-            The naming scheme for kernel output binaries has been changed to
-            now include
-            <link linkend='var-PE'><filename>PE</filename></link> as part of the
-            filename:
-            <literallayout class='monospaced'>
-     KERNEL_IMAGE_BASE_NAME ?= "${KERNEL_IMAGETYPE}-${PE}-${PV}-${PR}-${MACHINE}-${DATETIME}"
-            </literallayout>
-        </para>
-
-        <para>
-            Because the <filename>PE</filename> variable is not set by default,
-            these binary files could result with names that include two dash
-            characters.
-            Here is an example:
-            <literallayout class='monospaced'>
-     bzImage--3.10.9+git0+cd502a8814_7144bcc4b8-r0-qemux86-64-20130830085431.bin
-            </literallayout>
-        </para>
-    </section>
-</section>
-
-<section id='moving-to-the-yocto-project-1.4-release'>
-    <title>Moving to the Yocto Project 1.4 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 1.4 Release from the prior release.
-    </para>
-
-    <section id='migration-1.4-bitbake'>
-        <title>BitBake</title>
-
-        <para>
-            Differences include the following:
-            <itemizedlist>
-                <listitem><para><emphasis>Comment Continuation:</emphasis>
-                    If a comment ends with a line continuation (\) character,
-                    then the next line must also be a comment.
-                    Any instance where this is not the case, now triggers
-                    a warning.
-                    You must either remove the continuation character, or be
-                    sure the next line is a comment.
-                    </para></listitem>
-                <listitem><para><emphasis>Package Name Overrides:</emphasis>
-                    The runtime package specific variables
-                    <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>,
-                    <link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link>,
-                    <link linkend='var-RSUGGESTS'><filename>RSUGGESTS</filename></link>,
-                    <link linkend='var-RPROVIDES'><filename>RPROVIDES</filename></link>,
-                    <link linkend='var-RCONFLICTS'><filename>RCONFLICTS</filename></link>,
-                    <link linkend='var-RREPLACES'><filename>RREPLACES</filename></link>,
-                    <link linkend='var-FILES'><filename>FILES</filename></link>,
-                    <link linkend='var-ALLOW_EMPTY'><filename>ALLOW_EMPTY</filename></link>,
-                    and the pre, post, install, and uninstall script functions
-                    <filename>pkg_preinst</filename>,
-                    <filename>pkg_postinst</filename>,
-                    <filename>pkg_prerm</filename>, and
-                    <filename>pkg_postrm</filename> should always have a
-                    package name override.
-                    For example, use <filename>RDEPENDS_${PN}</filename> for
-                    the main package instead of <filename>RDEPENDS</filename>.
-                    BitBake uses more strict checks when it parses recipes.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.4-build-behavior'>
-        <title>Build Behavior</title>
-
-        <para>
-            Differences include the following:
-            <itemizedlist>
-                <listitem><para><emphasis>Shared State Code:</emphasis>
-                    The shared state code has been optimized to avoid running
-                    unnecessary tasks.
-                    For example, the following no longer populates the target
-                    sysroot since that is not necessary:
-                    <literallayout class='monospaced'>
-     $ bitbake -c rootfs <replaceable>some-image</replaceable>
-                    </literallayout>
-                    Instead, the system just needs to extract the output
-                    package contents, re-create the packages, and construct
-                    the root filesystem.
-                    This change is unlikely to cause any problems unless
-                    you have missing declared dependencies.
-                    </para></listitem>
-                <listitem><para><emphasis>Scanning Directory Names:</emphasis>
-                    When scanning for files in
-                    <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>,
-                    the build system now uses
-                    <link linkend='var-FILESOVERRIDES'><filename>FILESOVERRIDES</filename></link>
-                    instead of <link linkend='var-OVERRIDES'><filename>OVERRIDES</filename></link>
-                    for the directory names.
-                    In general, the values previously in
-                    <filename>OVERRIDES</filename> are now in
-                    <filename>FILESOVERRIDES</filename> as well.
-                    However, if you relied upon an additional value
-                    you previously added to <filename>OVERRIDES</filename>,
-                    you might now need to add it to
-                    <filename>FILESOVERRIDES</filename> unless you are already
-                    adding it through the
-                    <link linkend='var-MACHINEOVERRIDES'><filename>MACHINEOVERRIDES</filename></link>
-                    or <link linkend='var-DISTROOVERRIDES'><filename>DISTROOVERRIDES</filename></link>
-                    variables, as appropriate.
-                    For more related changes, see the
-                    "<link linkend='migration-1.4-variables'>Variables</link>"
-                    section.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-
-    <section id='migration-1.4-proxies-and-fetching-source'>
-        <title>Proxies and Fetching Source</title>
-
-        <para>
-            A new <filename>oe-git-proxy</filename> script has been added to
-            replace previous methods of handling proxies and fetching source
-            from Git.
-            See the <filename>meta-yocto/conf/site.conf.sample</filename> file
-            for information on how to use this script.
-        </para>
-    </section>
-
-    <section id='migration-1.4-custom-interfaces-file-netbase-change'>
-        <title>Custom Interfaces File (netbase change)</title>
-
-        <para>
-            If you have created your own custom
-            <filename>etc/network/interfaces</filename> file by creating
-            an append file for the <filename>netbase</filename> recipe,
-            you now need to create an append file for the
-            <filename>init-ifupdown</filename> recipe instead, which you can
-            find in the
-            <link linkend='source-directory'>Source Directory</link>
-            at <filename>meta/recipes-core/init-ifupdown</filename>.
-            For information on how to use append files, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#using-bbappend-files'>Using .bbappend Files</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id='migration-1.4-remote-debugging'>
-        <title>Remote Debugging</title>
-
-        <para>
-            Support for remote debugging with the Eclipse IDE is now
-            separated into an image feature
-            (<filename>eclipse-debug</filename>) that corresponds to the
-            <filename>packagegroup-core-eclipse-debug</filename> package group.
-            Previously, the debugging feature was included through the
-            <filename>tools-debug</filename> image feature, which corresponds
-            to the <filename>packagegroup-core-tools-debug</filename>
-            package group.
-        </para>
-    </section>
-
-    <section id='migration-1.4-variables'>
-        <title>Variables</title>
-
-        <para>
-            The following variables have changed:
-            <itemizedlist>
-                <listitem><para><emphasis><filename>SANITY_TESTED_DISTROS</filename>:</emphasis>
-                    This variable now uses a distribution ID, which is composed
-                    of the host distributor ID followed by the release.
-                    Previously,
-                    <link linkend='var-SANITY_TESTED_DISTROS'><filename>SANITY_TESTED_DISTROS</filename></link>
-                    was composed of the description field.
-                    For example, "Ubuntu 12.10" becomes "Ubuntu-12.10".
-                    You do not need to worry about this change if you are not
-                    specifically setting this variable, or if you are
-                    specifically setting it to "".
-                    </para></listitem>
-                <listitem><para><emphasis><filename>SRC_URI</filename>:</emphasis>
-                    The <filename>${</filename><link linkend='var-PN'><filename>PN</filename></link><filename>}</filename>,
-                    <filename>${</filename><link linkend='var-PF'><filename>PF</filename></link><filename>}</filename>,
-                    <filename>${</filename><link linkend='var-P'><filename>P</filename></link><filename>}</filename>,
-                    and <filename>FILE_DIRNAME</filename> directories have been
-                    dropped from the default value of the
-                    <link linkend='var-FILESPATH'><filename>FILESPATH</filename></link>
-                    variable, which is used as the search path for finding files
-                    referred to in
-                    <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>.
-                    If you have a recipe that relied upon these directories,
-                    which would be unusual, then you will need to add the
-                    appropriate paths within the recipe or, alternatively,
-                    rearrange the files.
-                    The most common locations are still covered by
-                    <filename>${BP}</filename>, <filename>${BPN}</filename>,
-                    and "files", which all remain in the default value of
-                    <link linkend='var-FILESPATH'><filename>FILESPATH</filename></link>.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-target-package-management-with-rpm'>
-        <title>Target Package Management with RPM</title>
-
-        <para>
-            If runtime package management is enabled and the RPM backend
-            is selected, Smart is now installed for package download, dependency
-            resolution, and upgrades instead of Zypper.
-            For more information on how to use Smart, run the following command
-            on the target:
-            <literallayout class='monospaced'>
-     smart --help
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='migration-1.4-recipes-moved'>
-        <title>Recipes Moved</title>
-
-        <para>
-            The following recipes were moved from their previous locations
-            because they are no longer used by anything in
-            the OpenEmbedded-Core:
-            <itemizedlist>
-                <listitem><para><emphasis><filename>clutter-box2d</filename>:</emphasis>
-                    Now resides in the <filename>meta-oe</filename> layer.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>evolution-data-server</filename>:</emphasis>
-                    Now resides in the <filename>meta-gnome</filename> layer.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>gthumb</filename>:</emphasis>
-                    Now resides in the <filename>meta-gnome</filename> layer.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>gtkhtml2</filename>:</emphasis>
-                    Now resides in the <filename>meta-oe</filename> layer.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>gupnp</filename>:</emphasis>
-                    Now resides in the <filename>meta-multimedia</filename> layer.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>gypsy</filename>:</emphasis>
-                    Now resides in the <filename>meta-oe</filename> layer.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>libcanberra</filename>:</emphasis>
-                    Now resides in the <filename>meta-gnome</filename> layer.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>libgdata</filename>:</emphasis>
-                    Now resides in the <filename>meta-gnome</filename> layer.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>libmusicbrainz</filename>:</emphasis>
-                    Now resides in the <filename>meta-multimedia</filename> layer.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>metacity</filename>:</emphasis>
-                    Now resides in the <filename>meta-gnome</filename> layer.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>polkit</filename>:</emphasis>
-                    Now resides in the <filename>meta-oe</filename> layer.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>zeroconf</filename>:</emphasis>
-                    Now resides in the <filename>meta-networking</filename> layer.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.4-removals-and-renames'>
-        <title>Removals and Renames</title>
-
-        <para>
-            The following list shows what has been removed or renamed:
-            <itemizedlist>
-                <listitem><para><emphasis><filename>evieext</filename>:</emphasis>
-                    Removed because it has been removed from
-                    <filename>xserver</filename> since 2008.
-                    </para></listitem>
-                <listitem><para><emphasis>Gtk+ DirectFB:</emphasis>
-                    Removed support because upstream Gtk+ no longer supports it
-                    as of version 2.18.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>libxfontcache / xfontcacheproto</filename>:</emphasis>
-                    Removed because they were removed from the Xorg server in 2008.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>libxp / libxprintapputil / libxprintutil / printproto</filename>:</emphasis>
-                    Removed because the XPrint server was removed from
-                    Xorg in 2008.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>libxtrap / xtrapproto</filename>:</emphasis>
-                    Removed because their functionality was broken upstream.
-                    </para></listitem>
-                <listitem><para><emphasis>linux-yocto 3.0 kernel:</emphasis>
-                    Removed with linux-yocto 3.8 kernel being added.
-                    The linux-yocto 3.2 and linux-yocto 3.4 kernels remain
-                    as part of the release.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>lsbsetup</filename>:</emphasis>
-                    Removed with functionality now provided by
-                    <filename>lsbtest</filename>.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>matchbox-stroke</filename>:</emphasis>
-                    Removed because it was never more than a proof-of-concept.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>matchbox-wm-2 / matchbox-theme-sato-2</filename>:</emphasis>
-                    Removed because they are not maintained.
-                    However, <filename>matchbox-wm</filename> and
-                    <filename>matchbox-theme-sato</filename> are still
-                    provided.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>mesa-dri</filename>:</emphasis>
-                    Renamed to <filename>mesa</filename>.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>mesa-xlib</filename>:</emphasis>
-                    Removed because it was no longer useful.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>mutter</filename>:</emphasis>
-                    Removed because nothing ever uses it and the recipe is
-                    very old.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>orinoco-conf</filename>:</emphasis>
-                    Removed because it has become obsolete.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>update-modules</filename>:</emphasis>
-                    Removed because it is no longer used.
-                    The kernel module <filename>postinstall</filename> and
-                    <filename>postrm</filename> scripts can now do the same
-                    task without the use of this script.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>web</filename>:</emphasis>
-                    Removed because it is not maintained.  Superseded by
-                    <filename>web-webkit</filename>.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>xf86bigfontproto</filename>:</emphasis>
-                    Removed because upstream it has been disabled by default
-                    since 2007.
-                    Nothing uses <filename>xf86bigfontproto</filename>.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>xf86rushproto</filename>:</emphasis>
-                    Removed because its dependency in
-                    <filename>xserver</filename> was spurious and it was
-                    removed in 2005.
-                    </para></listitem>
-                <listitem><para><emphasis><filename>zypper / libzypp / sat-solver</filename>:</emphasis>
-                    Removed and been functionally replaced with Smart
-                    (<filename>python-smartpm</filename>) when RPM packaging
-                    is used and package management is enabled on the target.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='moving-to-the-yocto-project-1.5-release'>
-    <title>Moving to the Yocto Project 1.5 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 1.5 Release from the prior release.
-    </para>
-
-    <section id='migration-1.5-host-dependency-changes'>
-        <title>Host Dependency Changes</title>
-
-        <para>
-            The OpenEmbedded build system now has some additional requirements
-            on the host system:
-            <itemizedlist>
-                <listitem><para>Python 2.7.3+</para></listitem>
-                <listitem><para>Tar 1.24+</para></listitem>
-                <listitem><para>Git 1.7.8+</para></listitem>
-                <listitem><para>Patched version of Make if you are using
-                    3.82.
-                    Most distributions that provide Make 3.82 use the patched
-                    version.</para></listitem>
-            </itemizedlist>
-            If the Linux distribution you are using on your build host
-            does not provide packages for these, you can install and use
-            the Buildtools tarball, which provides an SDK-like environment
-            containing them.
-        </para>
-
-        <para>
-            For more information on this requirement, see the
-            "<link linkend='required-git-tar-python-and-gcc-versions'>Required Git, tar, Python and gcc Versions</link>"
-            section.
-        </para>
-    </section>
-
-    <section id='migration-1.5-atom-pc-bsp'>
-        <title><filename>atom-pc</filename> Board Support Package (BSP)</title>
-
-        <para>
-            The <filename>atom-pc</filename> hardware reference BSP has been
-            replaced by a <filename>genericx86</filename> BSP.
-            This BSP is not necessarily guaranteed to work on all x86
-            hardware, but it will run on a wider range of systems than the
-            <filename>atom-pc</filename> did.
-            <note>
-                Additionally, a <filename>genericx86-64</filename> BSP has
-                been added for 64-bit Atom systems.
-            </note>
-        </para>
-    </section>
-
-    <section id='migration-1.5-bitbake'>
-        <title>BitBake</title>
-
-        <para>
-            The following changes have been made that relate to BitBake:
-            <itemizedlist>
-                <listitem><para>
-                    BitBake now supports a <filename>_remove</filename>
-                    operator.
-                    The addition of this operator means you will have to
-                    rename any items in recipe space (functions, variables)
-                    whose names currently contain
-                    <filename>_remove_</filename> or end with
-                    <filename>_remove</filename> to avoid unexpected behavior.
-                    </para></listitem>
-                <listitem><para>
-                    BitBake's global method pool has been removed.
-                    This method is not particularly useful and led to clashes
-                    between recipes containing functions that had the
-                    same name.</para></listitem>
-                <listitem><para>
-                    The "none" server backend has been removed.
-                    The "process" server backend has been serving well as the
-                    default for a long time now.</para></listitem>
-                <listitem><para>
-                    The <filename>bitbake-runtask</filename> script has been
-                    removed.</para></listitem>
-                <listitem><para>
-                    <filename>${</filename><link linkend='var-P'><filename>P</filename></link><filename>}</filename>
-                    and
-                    <filename>${</filename><link linkend='var-PF'><filename>PF</filename></link><filename>}</filename>
-                    are no longer added to
-                    <link linkend='var-PROVIDES'><filename>PROVIDES</filename></link>
-                    by default in <filename>bitbake.conf</filename>.
-                    These version-specific <filename>PROVIDES</filename>
-                    items were seldom used.
-                    Attempting to use them could result in two versions being
-                    built simultaneously rather than just one version due to
-                    the way BitBake resolves dependencies.</para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.5-qa-warnings'>
-        <title>QA Warnings</title>
-
-        <para>
-            The following changes have been made to the package QA checks:
-            <itemizedlist>
-                <listitem><para>
-                    If you have customized
-                    <link linkend='var-ERROR_QA'><filename>ERROR_QA</filename></link>
-                    or <link linkend='var-WARN_QA'><filename>WARN_QA</filename></link>
-                    values in your configuration, check that they contain all of
-                    the issues that you wish to be reported.
-                    Previous Yocto Project versions contained a bug that meant
-                    that any item not mentioned in <filename>ERROR_QA</filename>
-                    or <filename>WARN_QA</filename> would be treated as a
-                    warning.
-                    Consequently, several important items were not already in
-                    the default value of <filename>WARN_QA</filename>.
-                    All of the possible QA checks are now documented in the
-                    "<link linkend='ref-classes-insane'><filename>insane.bbclass</filename></link>"
-                    section.</para></listitem>
-                <listitem><para>
-                    An additional QA check has been added to check if
-                    <filename>/usr/share/info/dir</filename> is being installed.
-                    Your recipe should delete this file within
-                    <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-                    if "make install" is installing it.
-                    </para></listitem>
-                <listitem><para>
-                    If you are using the buildhistory class, the check for the
-                    package version going backwards is now controlled using a
-                    standard QA check.
-                    Thus, if you have customized your
-                    <filename>ERROR_QA</filename> or
-                    <filename>WARN_QA</filename> values and still wish to have
-                    this check performed, you should add
-                    "version-going-backwards" to your value for one or the
-                    other variables depending on how you wish it to be handled.
-                    See the documented QA checks in the
-                    "<link linkend='ref-classes-insane'><filename>insane.bbclass</filename></link>"
-                    section.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.5-directory-layout-changes'>
-        <title>Directory Layout Changes</title>
-
-        <para>
-            The following directory changes exist:
-            <itemizedlist>
-                <listitem><para>
-                    Output SDK installer files are now named to include the
-                    image name and tuning architecture through the
-                    <link linkend='var-SDK_NAME'><filename>SDK_NAME</filename></link>
-                    variable.</para></listitem>
-                <listitem><para>
-                    Images and related files are now installed into a directory
-                    that is specific to the machine, instead of a parent
-                    directory containing output files for multiple machines.
-                    The
-                    <link linkend='var-DEPLOY_DIR_IMAGE'><filename>DEPLOY_DIR_IMAGE</filename></link>
-                    variable continues to point to the directory containing
-                    images for the current
-                    <link linkend='var-MACHINE'><filename>MACHINE</filename></link>
-                    and should be used anywhere there is a need to refer to
-                    this directory.
-                    The <filename>runqemu</filename> script now uses this
-                    variable to find images and kernel binaries and will use
-                    BitBake to determine the directory.
-                    Alternatively, you can set the
-                    <filename>DEPLOY_DIR_IMAGE</filename> variable in the
-                    external environment.</para></listitem>
-                <listitem><para>
-                    When buildhistory is enabled, its output is now written
-                    under the
-                    <link linkend='build-directory'>Build Directory</link>
-                    rather than
-                    <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>.
-                    Doing so makes it easier to delete
-                    <filename>TMPDIR</filename> and preserve the build history.
-                    Additionally, data for produced SDKs is now split by
-                    <link linkend='var-IMAGE_NAME'><filename>IMAGE_NAME</filename></link>.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>pkgdata</filename> directory produced as
-                    part of the packaging process has been collapsed into a
-                    single machine-specific directory.
-                    This directory is located under
-                    <filename>sysroots</filename> and uses a machine-specific
-                    name (i.e.
-                    <filename>tmp/sysroots/<replaceable>machine</replaceable>/pkgdata</filename>).
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.5-shortened-git-srcrev-values'>
-        <title>Shortened Git <filename>SRCREV</filename> Values</title>
-
-        <para>
-            BitBake will now shorten revisions from Git repositories from the
-            normal 40 characters down to 10 characters within
-            <link linkend='var-SRCPV'><filename>SRCPV</filename></link>
-            for improved usability in path and file names.
-            This change should be safe within contexts where these revisions
-            are used because the chances of spatially close collisions
-            is very low.
-            Distant collisions are not a major issue in the way
-            the values are used.
-        </para>
-    </section>
-
-    <section id='migration-1.5-image-features'>
-        <title><filename>IMAGE_FEATURES</filename></title>
-
-        <para>
-            The following changes have been made that relate to
-            <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>:
-            <itemizedlist>
-                <listitem><para>
-                    The value of <filename>IMAGE_FEATURES</filename> is now
-                    validated to ensure invalid feature items are not added.
-                    Some users mistakenly add package names to this variable
-                    instead of using
-                    <link linkend='var-IMAGE_INSTALL'><filename>IMAGE_INSTALL</filename></link>
-                    in order to have the package added to the image, which does
-                    not work.
-                    This change is intended to catch those kinds of situations.
-                    Valid <filename>IMAGE_FEATURES</filename> are drawn from
-                    <filename>PACKAGE_GROUP</filename> definitions,
-                    <link linkend='var-COMPLEMENTARY_GLOB'><filename>COMPLEMENTARY_GLOB</filename></link>
-                    and a new "validitems" varflag on
-                    <filename>IMAGE_FEATURES</filename>.
-                    The "validitems" varflag change allows additional features
-                    to be added if they are not provided using the previous
-                    two mechanisms.
-                    </para></listitem>
-                <listitem><para>
-                    The previously deprecated "apps-console-core"
-                    <filename>IMAGE_FEATURES</filename> item is no longer
-                    supported.
-                    Add "splash" to <filename>IMAGE_FEATURES</filename> if you
-                    wish to have the splash screen enabled, since this is
-                    all that apps-console-core was doing.</para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.5-run'>
-        <title><filename>/run</filename></title>
-
-        <para>
-            The <filename>/run</filename> directory from the Filesystem
-            Hierarchy Standard 3.0 has been introduced.
-            You can find some of the implications for this change
-            <ulink url='http://cgit.openembedded.org/openembedded-core/commit/?id=0e326280a15b0f2c4ef2ef4ec441f63f55b75873'>here</ulink>.
-            The change also means that recipes that install files to
-            <filename>/var/run</filename> must be changed.
-            You can find a guide on how to make these changes
-            <ulink url='http://permalink.gmane.org/gmane.comp.handhelds.openembedded/58530'>here</ulink>.
-        </para>
-    </section>
-
-    <section id='migration-1.5-removal-of-package-manager-database-within-image-recipes'>
-        <title>Removal of Package Manager Database Within Image Recipes</title>
-
-        <para>
-            The image <filename>core-image-minimal</filename> no longer adds
-            <filename>remove_packaging_data_files</filename> to
-            <link linkend='var-ROOTFS_POSTPROCESS_COMMAND'><filename>ROOTFS_POSTPROCESS_COMMAND</filename></link>.
-            This addition is now handled automatically when "package-management"
-            is not in
-            <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>.
-            If you have custom image recipes that make this addition,
-            you should remove the lines, as they are not needed and might
-            interfere with correct operation of postinstall scripts.
-        </para>
-    </section>
-
-    <section id='migration-1.5-images-now-rebuild-only-on-changes-instead-of-every-time'>
-        <title>Images Now Rebuild Only on Changes Instead of Every Time</title>
-
-        <para>
-            The
-            <link linkend='ref-tasks-rootfs'><filename>do_rootfs</filename></link>
-            and other related image
-            construction tasks are no longer marked as "nostamp".
-            Consequently, they will only be re-executed when their inputs have
-            changed.
-            Previous versions of the OpenEmbedded build system always rebuilt
-            the image when requested rather when necessary.
-        </para>
-    </section>
-
-    <section id='migration-1.5-task-recipes'>
-        <title>Task Recipes</title>
-
-        <para>
-            The previously deprecated <filename>task.bbclass</filename> has
-            now been dropped.
-            For recipes that previously inherited from this class, you should
-            rename them from <filename>task-*</filename> to
-            <filename>packagegroup-*</filename> and inherit packagegroup
-            instead.
-        </para>
-
-        <para>
-            For more information, see the
-            "<link linkend='ref-classes-packagegroup'><filename>packagegroup.bbclass</filename></link>"
-            section.
-        </para>
-    </section>
-
-    <section id='migration-1.5-busybox'>
-        <title>BusyBox</title>
-
-        <para>
-            By default, we now split BusyBox into two binaries:
-            one that is suid root for those components that need it, and
-            another for the rest of the components.
-            Splitting BusyBox allows for optimization that eliminates the
-            <filename>tinylogin</filename> recipe as recommended by upstream.
-            You can disable this split by setting
-            <link linkend='var-BUSYBOX_SPLIT_SUID'><filename>BUSYBOX_SPLIT_SUID</filename></link>
-            to "0".
-        </para>
-    </section>
-
-    <section id='migration-1.5-automated-image-testing'>
-        <title>Automated Image Testing</title>
-
-        <para>
-            A new automated image testing framework has been added
-            through the
-            <link linkend='ref-classes-testimage*'><filename>testimage.bbclass</filename></link>
-            class.
-            This framework replaces the older
-            <filename>imagetest-qemu</filename> framework.
-        </para>
-
-        <para>
-            You can learn more about performing automated image tests in the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#performing-automated-runtime-testing'>Performing Automated Runtime Testing</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id='migration-1.5-build-history'>
-        <title>Build History</title>
-
-        <para>
-            Following are changes to Build History:
-            <itemizedlist>
-                <listitem><para>
-                     Installed package sizes:
-                     <filename>installed-package-sizes.txt</filename> for an
-                     image now records the size of the files installed by each
-                     package instead of the size of each compressed package
-                     archive file.</para></listitem>
-                <listitem><para>
-                    The dependency graphs (<filename>depends*.dot</filename>)
-                    now use the actual package names instead of replacing
-                    dashes, dots and plus signs with underscores.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>buildhistory-diff</filename> and
-                    <filename>buildhistory-collect-srcrevs</filename>
-                    utilities have improved command-line handling.
-                    Use the <filename>--help</filename> option for
-                    each utility for more information on the new syntax.
-                    </para></listitem>
-            </itemizedlist>
-            For more information on Build History, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#maintaining-build-output-quality'>Maintaining Build Output Quality</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id='migration-1.5-udev'>
-        <title><filename>udev</filename></title>
-
-        <para>
-            Following are changes to <filename>udev</filename>:
-            <itemizedlist>
-                <listitem><para>
-                    <filename>udev</filename> no longer brings in
-                    <filename>udev-extraconf</filename> automatically
-                    through
-                    <link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link>,
-                    since this was originally intended to be optional.
-                    If you need the extra rules, then add
-                    <filename>udev-extraconf</filename> to your image.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>udev</filename> no longer brings in
-                    <filename>pciutils-ids</filename> or
-                    <filename>usbutils-ids</filename> through
-                    <filename>RRECOMMENDS</filename>.
-                    These are not needed by <filename>udev</filename> itself
-                    and removing them saves around 350KB.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.5-removed-renamed-recipes'>
-        <title>Removed and Renamed Recipes</title>
-
-        <itemizedlist>
-            <listitem><para>
-                The <filename>linux-yocto</filename> 3.2 kernel has been
-                removed.</para></listitem>
-            <listitem><para>
-                <filename>libtool-nativesdk</filename> has been renamed to
-                <filename>nativesdk-libtool</filename>.</para></listitem>
-            <listitem><para>
-                <filename>tinylogin</filename> has been removed.
-                It has been replaced by a suid portion of Busybox.
-                See the
-                "<link linkend='migration-1.5-busybox'>BusyBox</link>" section
-                for more information.</para></listitem>
-            <listitem><para>
-                <filename>external-python-tarball</filename> has been renamed
-                to <filename>buildtools-tarball</filename>.
-                </para></listitem>
-            <listitem><para>
-                <filename>web-webkit</filename> has been removed.
-                It has been functionally replaced by
-                <filename>midori</filename>.</para></listitem>
-            <listitem><para>
-                <filename>imake</filename> has been removed.
-                It is no longer needed by any other recipe.
-                </para></listitem>
-            <listitem><para>
-                <filename>transfig-native</filename> has been removed.
-                It is no longer needed by any other recipe.
-                </para></listitem>
-            <listitem><para>
-                <filename>anjuta-remote-run</filename> has been removed.
-                Anjuta IDE integration has not been officially supported for
-                several releases.</para></listitem>
-        </itemizedlist>
-    </section>
-
-    <section id='migration-1.5-other-changes'>
-        <title>Other Changes</title>
-
-        <para>
-            Following is a list of short entries describing other changes:
-            <itemizedlist>
-                <listitem><para>
-                    <filename>run-postinsts</filename>: Make this generic.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>base-files</filename>: Remove the unnecessary
-                    <filename>media/</filename><replaceable>xxx</replaceable> directories.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>alsa-state</filename>: Provide an empty
-                    <filename>asound.conf</filename> by default.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>classes/image</filename>: Ensure
-                    <link linkend='var-BAD_RECOMMENDATIONS'><filename>BAD_RECOMMENDATIONS</filename></link>
-                    supports pre-renamed package names.</para></listitem>
-                <listitem><para>
-                    <filename>classes/rootfs_rpm</filename>: Implement
-                    <filename>BAD_RECOMMENDATIONS</filename> for RPM.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>systemd</filename>: Remove
-                    <filename>systemd_unitdir</filename> if
-                    <filename>systemd</filename> is not in
-                    <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>systemd</filename>: Remove
-                    <filename>init.d</filename> dir if
-                    <filename>systemd</filename> unit file is present and
-                    <filename>sysvinit</filename> is not a distro feature.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libpam</filename>: Deny all services for the
-                    <filename>OTHER</filename> entries.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>image.bbclass</filename>: Move
-                    <filename>runtime_mapping_rename</filename> to avoid
-                    conflict with <filename>multilib</filename>.
-                    See
-                    <ulink url='https://bugzilla.yoctoproject.org/show_bug.cgi?id=4993'><filename>YOCTO #4993</filename></ulink>
-                    in Bugzilla for more information.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>linux-dtb</filename>: Use kernel build system
-                    to generate the <filename>dtb</filename> files.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>kern-tools</filename>: Switch from guilt to
-                    new <filename>kgit-s2q</filename> tool.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='moving-to-the-yocto-project-1.6-release'>
-    <title>Moving to the Yocto Project 1.6 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 1.6 Release from the prior release.
-    </para>
-
-
-    <section id='migration-1.6-archiver-class'>
-        <title><filename>archiver</filename> Class</title>
-
-        <para>
-            The
-            <link linkend='ref-classes-archiver'><filename>archiver</filename></link>
-            class has been rewritten and its configuration has been simplified.
-            For more details on the source archiver, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#maintaining-open-source-license-compliance-during-your-products-lifecycle'>Maintaining Open Source License Compliance During Your Product's Lifecycle</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id='migration-1.6-packaging-changes'>
-        <title>Packaging Changes</title>
-
-        <para>
-            The following packaging changes have been made:
-            <itemizedlist>
-                <listitem><para>
-                    The <filename>binutils</filename> recipe no longer produces
-                    a <filename>binutils-symlinks</filename> package.
-                    <filename>update-alternatives</filename> is now used to
-                    handle the preferred <filename>binutils</filename>
-                    variant on the target instead.
-                    </para></listitem>
-                <listitem><para>
-                    The tc (traffic control) utilities have been split out of
-                    the main <filename>iproute2</filename> package and put
-                    into the <filename>iproute2-tc</filename> package.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>gtk-engines</filename> schemas have been
-                    moved to a dedicated
-                    <filename>gtk-engines-schemas</filename> package.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>armv7a</filename> with thumb package
-                    architecture suffix has changed.
-                    The suffix for these packages with the thumb
-                    optimization enabled is "t2" as it should be.
-                    Use of this suffix was not the case in the 1.5 release.
-                    Architecture names will change within package feeds as a
-                    result.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.6-bitbake'>
-        <title>BitBake</title>
-
-        <para>
-            The following changes have been made to
-            <link linkend='bitbake-term'>BitBake</link>.
-        </para>
-
-        <section id='migration-1.6-matching-branch-requirement-for-git-fetching'>
-            <title>Matching Branch Requirement for Git Fetching</title>
-
-            <para>
-                When fetching source from a Git repository using
-                <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>,
-                BitBake will now validate the
-                <link linkend='var-SRCREV'><filename>SRCREV</filename></link>
-                value against the branch.
-                You can specify the branch using the following form:
-                <literallayout class='monospaced'>
-     SRC_URI = "git://server.name/repository;branch=<replaceable>branchname</replaceable>"
-                </literallayout>
-                If you do not specify a branch, BitBake looks
-                in the default "master" branch.
-            </para>
-
-            <para>
-                Alternatively, if you need to bypass this check (e.g.
-                if you are fetching a revision corresponding to a tag that
-                is not on any branch), you can add ";nobranch=1" to
-                the end of the URL within <filename>SRC_URI</filename>.
-            </para>
-        </section>
-
-        <section id='migration-1.6-bitbake-deps'>
-            <title>Python Definition substitutions</title>
-
-            <para>
-                BitBake had some previously deprecated Python definitions
-                within its <filename>bb</filename> module removed.
-                You should use their sub-module counterparts instead:
-                <itemizedlist>
-                    <listitem><para><filename>bb.MalformedUrl</filename>:
-                        Use <filename>bb.fetch.MalformedUrl</filename>.
-                        </para></listitem>
-                    <listitem><para><filename>bb.encodeurl</filename>:
-                        Use <filename>bb.fetch.encodeurl</filename>.
-                        </para></listitem>
-                    <listitem><para><filename>bb.decodeurl</filename>:
-                        Use <filename>bb.fetch.decodeurl</filename>
-                        </para></listitem>
-                    <listitem><para><filename>bb.mkdirhier</filename>:
-                        Use <filename>bb.utils.mkdirhier</filename>.
-                        </para></listitem>
-                    <listitem><para><filename>bb.movefile</filename>:
-                        Use <filename>bb.utils.movefile</filename>.
-                        </para></listitem>
-                    <listitem><para><filename>bb.copyfile</filename>:
-                        Use <filename>bb.utils.copyfile</filename>.
-                        </para></listitem>
-                    <listitem><para><filename>bb.which</filename>:
-                        Use <filename>bb.utils.which</filename>.
-                        </para></listitem>
-                    <listitem><para><filename>bb.vercmp_string</filename>:
-                        Use <filename>bb.utils.vercmp_string</filename>.
-                        </para></listitem>
-                    <listitem><para><filename>bb.vercmp</filename>:
-                        Use <filename>bb.utils.vercmp</filename>.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='migration-1.6-bitbake-fetcher'>
-            <title>SVK Fetcher</title>
-
-            <para>
-                The SVK fetcher has been removed from BitBake.
-            </para>
-        </section>
-
-        <section id='migration-1.6-bitbake-console-output'>
-            <title>Console Output Error Redirection</title>
-
-            <para>
-                The BitBake console UI will now output errors to
-                <filename>stderr</filename> instead of
-                <filename>stdout</filename>.
-                Consequently, if you are piping or redirecting the output of
-                <filename>bitbake</filename> to somewhere else, and you wish
-                to retain the errors, you will need to add
-                <filename>2>&amp;1</filename> (or something similar) to the
-                end of your <filename>bitbake</filename> command line.
-            </para>
-        </section>
-
-        <section id='migration-1.6-task-taskname-overrides'>
-            <title><filename>task-</filename><replaceable>taskname</replaceable> Overrides</title>
-
-            <para>
-                <filename>task-</filename><replaceable>taskname</replaceable> overrides have been
-                adjusted so that tasks whose names contain underscores have the
-                underscores replaced by hyphens for the override so that they
-                now function properly.
-                For example, the task override for
-                <link linkend='ref-tasks-populate_sdk'><filename>do_populate_sdk</filename></link>
-                is <filename>task-populate-sdk</filename>.
-            </para>
-        </section>
-    </section>
-
-    <section id='migration-1.6-variable-changes'>
-        <title>Changes to Variables</title>
-
-        <para>
-            The following variables have changed.
-            For information on the OpenEmbedded build system variables, see the
-            "<link linkend='ref-variables-glos'>Variables Glossary</link>" Chapter.
-        </para>
-
-        <section id='migration-1.6-variable-changes-TMPDIR'>
-            <title><filename>TMPDIR</filename></title>
-
-            <para>
-                <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>
-                can no longer be on an NFS mount.
-                NFS does not offer full POSIX locking and inode consistency
-                and can cause unexpected issues if used to store
-                <filename>TMPDIR</filename>.
-            </para>
-
-            <para>
-                The check for this occurs on startup.
-                If <filename>TMPDIR</filename> is detected on an NFS mount,
-                an error occurs.
-            </para>
-        </section>
-
-        <section id='migration-1.6-variable-changes-PRINC'>
-            <title><filename>PRINC</filename></title>
-
-            <para>
-                The <filename>PRINC</filename>
-                variable has been deprecated and triggers a warning if
-                detected during a build.
-                For
-                <link linkend='var-PR'><filename>PR</filename></link>
-                increments on changes, use the PR service instead.
-                You can find out more about this service in the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#working-with-a-pr-service'>Working With a PR Service</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-            </para>
-        </section>
-
-        <section id='migration-1.6-variable-changes-IMAGE_TYPES'>
-            <title><filename>IMAGE_TYPES</filename></title>
-
-            <para>
-                The "sum.jffs2" option for
-                <link linkend='var-IMAGE_TYPES'><filename>IMAGE_TYPES</filename></link>
-                has been replaced by the "jffs2.sum" option, which fits the
-                processing order.
-            </para>
-        </section>
-
-        <section id='migration-1.6-variable-changes-COPY_LIC_MANIFEST'>
-            <title><filename>COPY_LIC_MANIFEST</filename></title>
-
-            <para>
-                The
-                <link linkend='var-COPY_LIC_MANIFEST'><filename>COPY_LIC_MANIFEST</filename></link>
-                variable must
-                now be set to "1" rather than any value in order to enable
-                it.
-            </para>
-        </section>
-
-        <section id='migration-1.6-variable-changes-COPY_LIC_DIRS'>
-            <title><filename>COPY_LIC_DIRS</filename></title>
-
-            <para>
-                The
-                <link linkend='var-COPY_LIC_DIRS'><filename>COPY_LIC_DIRS</filename></link>
-                variable must
-                now be set to "1" rather than any value in order to enable
-                it.
-            </para>
-        </section>
-
-        <section id='migration-1.6-variable-changes-PACKAGE_GROUP'>
-            <title><filename>PACKAGE_GROUP</filename></title>
-
-            <para>
-                The
-                <filename>PACKAGE_GROUP</filename> variable has been renamed to
-                <link linkend='var-FEATURE_PACKAGES'><filename>FEATURE_PACKAGES</filename></link>
-                to more accurately reflect its purpose.
-                You can still use <filename>PACKAGE_GROUP</filename> but
-                the OpenEmbedded build system produces a warning message when
-                it encounters the variable.
-            </para>
-        </section>
-
-        <section id='migration-1.6-variable-changes-variable-entry-behavior'>
-            <title>Preprocess and Post Process Command Variable Behavior</title>
-
-            <para>
-                The following variables now expect a semicolon separated
-                list of functions to call and not arbitrary shell commands:
-                <literallayout class='monospaced'>
-     <link linkend='var-ROOTFS_PREPROCESS_COMMAND'>ROOTFS_PREPROCESS_COMMAND</link>
-     <link linkend='var-ROOTFS_POSTPROCESS_COMMAND'>ROOTFS_POSTPROCESS_COMMAND</link>
-     <link linkend='var-SDK_POSTPROCESS_COMMAND'>SDK_POSTPROCESS_COMMAND</link>
-     <link linkend='var-POPULATE_SDK_POST_TARGET_COMMAND'>POPULATE_SDK_POST_TARGET_COMMAND</link>
-     <link linkend='var-POPULATE_SDK_POST_HOST_COMMAND'>POPULATE_SDK_POST_HOST_COMMAND</link>
-     <link linkend='var-IMAGE_POSTPROCESS_COMMAND'>IMAGE_POSTPROCESS_COMMAND</link>
-     <link linkend='var-IMAGE_PREPROCESS_COMMAND'>IMAGE_PREPROCESS_COMMAND</link>
-     <link linkend='var-ROOTFS_POSTUNINSTALL_COMMAND'>ROOTFS_POSTUNINSTALL_COMMAND</link>
-     <link linkend='var-ROOTFS_POSTINSTALL_COMMAND'>ROOTFS_POSTINSTALL_COMMAND</link>
-                </literallayout>
-                For migration purposes, you can simply wrap shell commands in
-                a shell function and then call the function.
-                Here is an example:
-                <literallayout class='monospaced'>
-     my_postprocess_function() {
-        echo "hello" > ${IMAGE_ROOTFS}/hello.txt
-     }
-     ROOTFS_POSTPROCESS_COMMAND += "my_postprocess_function; "
-                </literallayout>
-            </para>
-        </section>
-    </section>
-
-    <section id='migration-1.6-package-test-ptest'>
-        <title>Package Test (ptest)</title>
-
-        <para>
-            Package Tests (ptest) are built but not installed by default.
-            For information on using Package Tests, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#testing-packages-with-ptest'>Testing Packages with ptest</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-            For information on the <filename>ptest</filename> class, see the
-            "<link linkend='ref-classes-ptest'><filename>ptest.bbclass</filename></link>"
-            section.
-        </para>
-    </section>
-
-    <section id='migration-1.6-build-changes'>
-        <title>Build Changes</title>
-
-        <para>
-            Separate build and source directories have been enabled
-            by default for selected recipes where it is known to work
-            (a whitelist) and for all recipes that inherit the
-            <link linkend='ref-classes-cmake'><filename>cmake</filename></link>
-            class.
-            In future releases the
-            <link linkend='ref-classes-autotools'><filename>autotools</filename></link>
-            class will enable a separate build directory by default as
-            well.
-            Recipes building Autotools-based
-            software that fails to build with a separate build directory
-            should be changed to inherit from the
-            <link linkend='ref-classes-autotools'><filename>autotools-brokensep</filename></link>
-            class instead of the <filename>autotools</filename> or
-            <filename>autotools_stage</filename>classes.
-        </para>
-    </section>
-
-    <section id='migration-1.6-building-qemu-native'>
-        <title><filename>qemu-native</filename></title>
-
-        <para>
-            <filename>qemu-native</filename> now builds without
-            SDL-based graphical output support by default.
-            The following additional lines are needed in your
-            <filename>local.conf</filename> to enable it:
-            <literallayout class='monospaced'>
-     PACKAGECONFIG_pn-qemu-native = "sdl"
-     ASSUME_PROVIDED += "libsdl-native"
-            </literallayout>
-            <note>
-                The default <filename>local.conf</filename>
-                contains these statements.
-                Consequently, if you are building a headless system and using
-                a default <filename>local.conf</filename> file, you will need
-                comment these two lines out.
-            </note>
-        </para>
-    </section>
-
-    <section id='migration-1.6-core-image-basic'>
-        <title><filename>core-image-basic</filename></title>
-
-        <para>
-            <filename>core-image-basic</filename> has been renamed to
-            <filename>core-image-full-cmdline</filename>.
-        </para>
-
-        <para>
-            In addition to <filename>core-image-basic</filename> being renamed,
-            <filename>packagegroup-core-basic</filename> has been renamed to
-            <filename>packagegroup-core-full-cmdline</filename> to match.
-        </para>
-    </section>
-
-    <section id='migration-1.6-licensing'>
-        <title>Licensing</title>
-
-        <para>
-            The top-level <filename>LICENSE</filename> file has been changed
-            to better describe the license of the various components of
-            <link linkend='oe-core'>OE-Core</link>.
-            However, the licensing itself remains unchanged.
-        </para>
-
-        <para>
-            Normally, this change would not cause any side-effects.
-            However, some recipes point to this file within
-            <link linkend='var-LIC_FILES_CHKSUM'><filename>LIC_FILES_CHKSUM</filename></link>
-            (as <filename>${COREBASE}/LICENSE</filename>) and thus the
-            accompanying checksum must be changed from
-            3f40d7994397109285ec7b81fdeb3b58 to
-            4d92cd373abda3937c2bc47fbc49d690.
-            A better alternative is to have
-            <filename>LIC_FILES_CHKSUM</filename> point to a file
-            describing the license that is distributed with the source
-            that the recipe is building, if possible, rather than pointing
-            to <filename>${COREBASE}/LICENSE</filename>.
-        </para>
-    </section>
-
-    <section id='migration-1.6-cflags-options'>
-        <title><filename>CFLAGS</filename> Options</title>
-
-        <para>
-            The "-fpermissive" option has been removed from the default
-            <link linkend='var-CFLAGS'><filename>CFLAGS</filename></link>
-            value.
-            You need to take action on individual recipes that fail when
-            building with this option.
-            You need to either patch the recipes to fix the issues reported by
-            the compiler, or you need to add "-fpermissive" to
-            <filename>CFLAGS</filename> in the recipes.
-        </para>
-    </section>
-
-    <section id='migration-1.6-custom-images'>
-        <title>Custom Image Output Types</title>
-
-        <para>
-            Custom image output types, as selected using
-            <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>,
-            must declare their dependencies on other image types (if any) using
-            a new
-            <link linkend='var-IMAGE_TYPEDEP'><filename>IMAGE_TYPEDEP</filename></link>
-            variable.
-        </para>
-    </section>
-
-    <section id='migration-1.6-do-package-write-task'>
-        <title>Tasks</title>
-
-        <para>
-            The <filename>do_package_write</filename> task has been removed.
-            The task is no longer needed.
-        </para>
-    </section>
-
-    <section id='migration-1.6-update-alternatives-provider'>
-        <title><filename>update-alternative</filename> Provider</title>
-
-        <para>
-            The default <filename>update-alternatives</filename> provider has
-            been changed from <filename>opkg</filename> to
-            <filename>opkg-utils</filename>.
-            This change resolves some troublesome circular dependencies.
-            The runtime package has also been renamed from
-            <filename>update-alternatives-cworth</filename>
-            to <filename>update-alternatives-opkg</filename>.
-        </para>
-    </section>
-
-    <section id='migration-1.6-virtclass-overrides'>
-        <title><filename>virtclass</filename> Overrides</title>
-
-        <para>
-            The <filename>virtclass</filename> overrides are now deprecated.
-            Use the equivalent class overrides instead (e.g.
-            <filename>virtclass-native</filename> becomes
-            <filename>class-native</filename>.)
-        </para>
-    </section>
-
-    <section id='migration-1.6-removed-renamed-recipes'>
-        <title>Removed and Renamed Recipes</title>
-
-        <para>
-            The following recipes have been removed:
-            <itemizedlist>
-                <listitem><para><filename>packagegroup-toolset-native</filename> -
-                    This recipe is largely unused.
-                    </para></listitem>
-                <listitem><para><filename>linux-yocto-3.8</filename> -
-                    Support for the Linux yocto 3.8 kernel has been dropped.
-                    Support for the 3.10 and 3.14 kernels have been added
-                    with the <filename>linux-yocto-3.10</filename> and
-                    <filename>linux-yocto-3.14</filename> recipes.
-                    </para></listitem>
-                <listitem><para><filename>ocf-linux</filename> -
-                    This recipe has been functionally replaced using
-                    <filename>cryptodev-linux</filename>.
-                    </para></listitem>
-                <listitem><para><filename>genext2fs</filename> -
-                    <filename>genext2fs</filename> is no longer used by the
-                    build system and is unmaintained upstream.
-                    </para></listitem>
-                <listitem><para><filename>js</filename> -
-                    This provided an ancient version of Mozilla's javascript
-                    engine that is no longer needed.
-                    </para></listitem>
-                <listitem><para><filename>zaurusd</filename> -
-                    The recipe has been moved to the
-                    <filename>meta-handheld</filename> layer.
-                    </para></listitem>
-                <listitem><para><filename>eglibc 2.17</filename> -
-                    Replaced by the <filename>eglibc 2.19</filename>
-                    recipe.
-                    </para></listitem>
-                <listitem><para><filename>gcc 4.7.2</filename> -
-                    Replaced by the now stable
-                    <filename>gcc 4.8.2</filename>.
-                    </para></listitem>
-                <listitem><para><filename>external-sourcery-toolchain</filename> -
-                    this recipe is now maintained in the
-                    <filename>meta-sourcery</filename> layer.
-                    </para></listitem>
-                <listitem><para><filename>linux-libc-headers-yocto 3.4+git</filename> -
-                    Now using version 3.10 of the
-                    <filename>linux-libc-headers</filename> by default.
-                    </para></listitem>
-                <listitem><para><filename>meta-toolchain-gmae</filename> -
-                    This recipe is obsolete.
-                    </para></listitem>
-                <listitem><para><filename>packagegroup-core-sdk-gmae</filename> -
-                    This recipe is obsolete.
-                    </para></listitem>
-                <listitem><para><filename>packagegroup-core-standalone-gmae-sdk-target</filename> -
-                    This recipe is obsolete.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.6-removed-classes'>
-        <title>Removed Classes</title>
-
-        <para>
-            The following classes have become obsolete and have been removed:
-            <itemizedlist>
-                <listitem><para><filename>module_strip</filename>
-                    </para></listitem>
-                <listitem><para><filename>pkg_metainfo</filename>
-                    </para></listitem>
-                <listitem><para><filename>pkg_distribute</filename>
-                    </para></listitem>
-                <listitem><para><filename>image-empty</filename>
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.6-reference-bsps'>
-        <title>Reference Board Support Packages (BSPs)</title>
-
-        <para>
-            The following reference BSPs changes occurred:
-            <itemizedlist>
-                <listitem><para>The BeagleBoard
-                    (<filename>beagleboard</filename>) ARM reference hardware
-                    has been replaced by the BeagleBone
-                    (<filename>beaglebone</filename>) hardware.
-                    </para></listitem>
-                <listitem><para>The RouterStation Pro
-                    (<filename>routerstationpro</filename>) MIPS reference
-                    hardware has been replaced by the EdgeRouter Lite
-                    (<filename>edgerouter</filename>) hardware.
-                    </para></listitem>
-            </itemizedlist>
-            The previous reference BSPs for the
-            <filename>beagleboard</filename> and
-            <filename>routerstationpro</filename> machines are still available
-            in a new <filename>meta-yocto-bsp-old</filename> layer in the
-            <ulink url='&YOCTO_GIT_URL;'>Source Repositories</ulink>
-            at
-            <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/meta-yocto-bsp-old/'>http://git.yoctoproject.org/cgit/cgit.cgi/meta-yocto-bsp-old/</ulink>.
-        </para>
-    </section>
-</section>
-
-<section id='moving-to-the-yocto-project-1.7-release'>
-    <title>Moving to the Yocto Project 1.7 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 1.7 Release from the prior release.
-    </para>
-
-    <section id='migration-1.7-changes-to-setting-qemu-packageconfig-options'>
-        <title>Changes to Setting QEMU <filename>PACKAGECONFIG</filename> Options in <filename>local.conf</filename></title>
-
-        <para>
-            The QEMU recipe now uses a number of
-            <link linkend='var-PACKAGECONFIG'><filename>PACKAGECONFIG</filename></link>
-            options to enable various optional features.
-            The method used to set defaults for these options means that
-            existing
-            <filename>local.conf</filename> files will need to be be
-            modified to append to <filename>PACKAGECONFIG</filename> for
-            <filename>qemu-native</filename> and
-            <filename>nativesdk-qemu</filename> instead of setting it.
-            In other words, to enable graphical output for QEMU, you should
-            now have these lines in <filename>local.conf</filename>:
-            <literallayout class='monospaced'>
-     PACKAGECONFIG_append_pn-qemu-native = " sdl"
-     PACKAGECONFIG_append_pn-nativesdk-qemu = " sdl"
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='migration-1.7-minimum-git-version'>
-        <title>Minimum Git version</title>
-
-        <para>
-            The minimum
-            <ulink url='&YOCTO_DOCS_OM_URL;#git'>Git</ulink> version
-            required on the build host is now 1.7.8 because the
-            <filename>--list</filename> option is now required by
-            BitBake's Git fetcher.
-            As always, if your host distribution does not provide a version of
-            Git that meets this requirement, you can use the
-            <filename>buildtools-tarball</filename> that does.
-            See the
-            "<link linkend='required-git-tar-python-and-gcc-versions'>Required Git, tar, Python and gcc Versions</link>"
-            section for more information.
-        </para>
-    </section>
-
-    <section id='migration-1.7-autotools-class-changes'>
-        <title>Autotools Class Changes</title>
-
-        <para>
-            The following
-            <link linkend='ref-classes-autotools'><filename>autotools</filename></link>
-            class changes occurred:
-            <itemizedlist>
-                <listitem><para><emphasis>
-                    A separate build directory is now used by default:</emphasis>
-                    The <filename>autotools</filename> class has been changed
-                    to use a directory for building
-                    (<link linkend='var-B'><filename>B</filename></link>),
-                    which is separate from the source directory
-                    (<link linkend='var-S'><filename>S</filename></link>).
-                    This is commonly referred to as
-                    <filename>B != S</filename>, or an out-of-tree build.</para>
-                    <para>If the software being built is already capable of
-                    building in a directory separate from the source, you
-                    do not need to do anything.
-                    However, if the software is not capable of being built
-                    in this manner, you will
-                    need to either patch the software so that it can build
-                    separately, or you will need to change the recipe to
-                    inherit the
-                    <link linkend='ref-classes-autotools'><filename>autotools-brokensep</filename></link>
-                    class instead of the <filename>autotools</filename> or
-                    <filename>autotools_stage</filename> classes.
-                    </para></listitem>
-                <listitem><para><emphasis>
-                    The <filename>--foreign</filename> option is
-                    no longer passed to <filename>automake</filename> when
-                    running <filename>autoconf</filename>:</emphasis>
-                    This option tells <filename>automake</filename> that a
-                    particular software package does not follow the GNU
-                    standards and therefore should not be expected
-                    to distribute certain files such as
-                    <filename>ChangeLog</filename>,
-                    <filename>AUTHORS</filename>, and so forth.
-                    Because the majority of upstream software packages already
-                    tell <filename>automake</filename> to enable foreign mode
-                    themselves, the option is mostly superfluous.
-                    However, some recipes will need patches for this change.
-                    You can easily make the change by patching
-                    <filename>configure.ac</filename> so that it passes
-                    "foreign" to <filename>AM_INIT_AUTOMAKE()</filename>.
-                    See
-                    <ulink url='http://cgit.openembedded.org/openembedded-core/commit/?id=01943188f85ce6411717fb5bf702d609f55813f2'>this commit</ulink>
-                    for an example showing how to make the patch.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.7-binary-configuration-scripts-disabled'>
-        <title>Binary Configuration Scripts Disabled</title>
-
-        <para>
-            Some of the core recipes that package binary configuration scripts
-            now disable the scripts due to the
-            scripts previously requiring error-prone path substitution.
-            Software that links against these libraries using these scripts
-            should use the much more robust <filename>pkg-config</filename>
-            instead.
-            The list of recipes changed in this version (and their
-            configuration scripts) is as follows:
-            <literallayout class='monospaced'>
-     directfb (directfb-config)
-     freetype (freetype-config)
-     gpgme (gpgme-config)
-     libassuan (libassuan-config)
-     libcroco (croco-6.0-config)
-     libgcrypt (libgcrypt-config)
-     libgpg-error (gpg-error-config)
-     libksba (ksba-config)
-     libpcap (pcap-config)
-     libpcre (pcre-config)
-     libpng (libpng-config, libpng16-config)
-     libsdl (sdl-config)
-     libusb-compat (libusb-config)
-     libxml2 (xml2-config)
-     libxslt (xslt-config)
-     ncurses (ncurses-config)
-     neon (neon-config)
-     npth (npth-config)
-     pth (pth-config)
-     taglib (taglib-config)
-            </literallayout>
-            Additionally, support for <filename>pkg-config</filename> has been
-            added to some recipes in the previous list in the rare cases
-            where the upstream software package does not already provide
-            it.
-        </para>
-    </section>
-
-    <section id='migration-1.7-glibc-replaces-eglibc'>
-        <title><filename>eglibc 2.19</filename> Replaced with <filename>glibc 2.20</filename></title>
-
-        <para>
-            Because <filename>eglibc</filename> and
-            <filename>glibc</filename> were already fairly close, this
-            replacement should not require any significant changes to other
-            software that links to <filename>eglibc</filename>.
-            However, there were a number of minor changes in
-            <filename>glibc 2.20</filename> upstream that could require
-            patching some software (e.g. the removal of the
-            <filename>_BSD_SOURCE</filename> feature test macro).
-        </para>
-
-        <para>
-            <filename>glibc 2.20</filename> requires version 2.6.32 or greater
-            of the Linux kernel.
-            Thus, older kernels will no longer be usable in conjunction with it.
-        </para>
-
-        <para>
-            For full details on the changes in <filename>glibc 2.20</filename>,
-            see the upstream release notes
-            <ulink url='https://sourceware.org/ml/libc-alpha/2014-09/msg00088.html'>here</ulink>.
-        </para>
-    </section>
-
-    <section id='migration-1.7-kernel-module-autoloading'>
-        <title>Kernel Module Autoloading</title>
-
-        <para>
-            The
-            <link linkend='var-module_autoload'><filename>module_autoload_*</filename></link>
-            variable is now deprecated and a new
-            <link linkend='var-KERNEL_MODULE_AUTOLOAD'><filename>KERNEL_MODULE_AUTOLOAD</filename></link>
-            variable should be used instead.
-            Also,
-            <link linkend='var-module_conf'><filename>module_conf_*</filename></link>
-            must now be used in conjunction with a new
-            <link linkend='var-KERNEL_MODULE_PROBECONF'><filename>KERNEL_MODULE_PROBECONF</filename></link>
-            variable.
-            The new variables no longer require you to specify the module name
-            as part of the variable name.
-            This change not only simplifies usage but also allows the values
-            of these variables to be appropriately incorporated into task
-            signatures and thus trigger the appropriate tasks to re-execute
-            when changed.
-            You should replace any references to
-            <filename>module_autoload_*</filename> with
-            <filename>KERNEL_MODULE_AUTOLOAD</filename>, and add any modules
-            for which <filename>module_conf_*</filename> is specified to
-            <filename>KERNEL_MODULE_PROBECONF</filename>.
-        </para>
-    </section>
-
-    <section id='migration-1.7-qa-check-changes'>
-        <title>QA Check Changes</title>
-
-        <para>
-            The following changes have occurred to the QA check process:
-            <itemizedlist>
-                <listitem><para>
-                    Additional QA checks <filename>file-rdeps</filename>
-                    and <filename>build-deps</filename> have been added in
-                    order to verify that file dependencies are satisfied
-                    (e.g. package contains a script requiring
-                    <filename>/bin/bash</filename>) and build-time dependencies
-                    are declared, respectively.
-                    For more information, please see the
-                    "<link linkend='ref-qa-checks'>QA Error and Warning Messages</link>"
-                    chapter.
-                    </para></listitem>
-                <listitem><para>
-                    Package QA checks are now performed during a new
-                    <link linkend='ref-tasks-package_qa'><filename>do_package_qa</filename></link>
-                    task rather than being part of the
-                    <link linkend='ref-tasks-package'><filename>do_package</filename></link>
-                    task.
-                    This allows more parallel execution.
-                    This change is unlikely to be an issue except for highly
-                    customized recipes that disable packaging tasks themselves
-                    by marking them as <filename>noexec</filename>.
-                    For those packages, you will need to disable the
-                    <filename>do_package_qa</filename> task as well.
-                    </para></listitem>
-                <listitem><para>
-                    Files being overwritten during the
-                    <link linkend='ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></link>
-                    task now trigger an error instead of a warning.
-                    Recipes should not be overwriting files written to the
-                    sysroot by other recipes.
-                    If you have these types of recipes, you need to alter them
-                    so that they do not overwrite these files.</para>
-                    <para>You might now receive this error after changes in
-                    configuration or metadata resulting in orphaned files
-                    being left in the sysroot.
-                    If you do receive this error, the way to resolve the issue
-                    is to delete your
-                    <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>
-                    or to move it out of the way and then re-start the build.
-                    Anything that has been fully built up to that point and
-                    does not need rebuilding will be restored from the shared
-                    state cache and the rest of the build will be able to
-                    proceed as normal.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.7-removed-recipes'>
-        <title>Removed Recipes</title>
-
-        <para>
-            The following recipes have been removed:
-            <itemizedlist>
-                <listitem><para>
-                    <filename>x-load</filename>:
-                    This recipe has been superseded by
-                    U-boot SPL for all Cortex-based TI SoCs.
-                    For legacy boards, the <filename>meta-ti</filename>
-                    layer, which contains a maintained recipe, should be used
-                    instead.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>ubootchart</filename>:
-                    This recipe is obsolete.
-                    A <filename>bootchart2</filename> recipe has been added
-                    to functionally replace it.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>linux-yocto 3.4</filename>:
-                    Support for the linux-yocto 3.4 kernel has been dropped.
-                    Support for the 3.10 and 3.14 kernels remains, while
-                    support for version 3.17 has been added.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>eglibc</filename> has been removed in favor of
-                    <filename>glibc</filename>.
-                    See the
-                    "<link linkend='migration-1.7-glibc-replaces-eglibc'><filename>eglibc 2.19</filename> Replaced with <filename>glibc 2.20</filename></link>"
-                    section for more information.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.7-miscellaneous-changes'>
-        <title>Miscellaneous Changes</title>
-
-        <para>
-            The following miscellaneous change occurred:
-            <itemizedlist>
-                <listitem><para>
-                    The build history feature now writes
-                    <filename>build-id.txt</filename> instead of
-                    <filename>build-id</filename>.
-                    Additionally, <filename>build-id.txt</filename>
-                    now contains the full build header as printed by
-                    BitBake upon starting the build.
-                    You should manually remove old "build-id" files from your
-                    existing build history repositories to avoid confusion.
-                    For information on the build history feature, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#maintaining-build-output-quality'>Maintaining Build Output Quality</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='moving-to-the-yocto-project-1.8-release'>
-    <title>Moving to the Yocto Project 1.8 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 1.8 Release from the prior release.
-    </para>
-
-    <section id='migration-1.8-removed-recipes'>
-        <title>Removed Recipes</title>
-
-        <para>
-            The following recipes have been removed:
-            <itemizedlist>
-                <listitem><para><filename>owl-video</filename>:
-                    Functionality replaced by <filename>gst-player</filename>.
-                    </para></listitem>
-                <listitem><para><filename>gaku</filename>:
-                    Functionality replaced by <filename>gst-player</filename>.
-                    </para></listitem>
-                <listitem><para><filename>gnome-desktop</filename>:
-                    This recipe is now available in
-                    <filename>meta-gnome</filename> and is no longer needed.
-                    </para></listitem>
-                <listitem><para><filename>gsettings-desktop-schemas</filename>:
-                    This recipe is now available in
-                    <filename>meta-gnome</filename> and is no longer needed.
-                    </para></listitem>
-                <listitem><para><filename>python-argparse</filename>:
-                    The <filename>argparse</filename> module is already
-                    provided in the default Python distribution in a
-                    package named <filename>python-argparse</filename>.
-                    Consequently, the separate
-                    <filename>python-argparse</filename> recipe is no
-                    longer needed.
-                    </para></listitem>
-                <listitem><para><filename>telepathy-python, libtelepathy, telepathy-glib, telepathy-idle, telepathy-mission-control</filename>:
-                    All these recipes have moved to
-                    <filename>meta-oe</filename> and are consequently no
-                    longer needed by any recipes in OpenEmbedded-Core.
-                    </para></listitem>
-                <listitem><para><filename>linux-yocto_3.10</filename> and <filename>linux-yocto_3.17</filename>:
-                    Support for the linux-yocto 3.10 and 3.17 kernels has been
-                    dropped.
-                    Support for the 3.14 kernel remains, while support for
-                    3.19 kernel has been added.
-                    </para></listitem>
-                <listitem><para><filename>poky-feed-config-opkg</filename>:
-                    This recipe has become obsolete and is no longer needed.
-                    Use <filename>distro-feed-config</filename> from
-                    <filename>meta-oe</filename> instead.
-                    </para></listitem>
-                <listitem><para><filename>libav 0.8.x</filename>:
-                    <filename>libav 9.x</filename> is now used.
-                    </para></listitem>
-                <listitem><para><filename>sed-native</filename>:
-                    No longer needed.
-                    A working version of <filename>sed</filename> is expected
-                    to be provided by the host distribution.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.8-bluez'>
-        <title>BlueZ 4.x / 5.x Selection</title>
-
-        <para>
-            Proper built-in support for selecting BlueZ 5.x in preference
-            to the default of 4.x now exists.
-            To use BlueZ 5.x, simply add "bluez5" to your
-            <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>
-            value.
-            If you had previously added append files
-            (<filename>*.bbappend</filename>) to make this selection, you can
-            now remove them.
-        </para>
-
-        <para>
-            Additionally, a <filename>bluetooth</filename> class has been added
-            to make selection of the appropriate bluetooth support within a
-            recipe a little easier.
-            If you wish to make use of this class in a recipe, add something
-            such as the following:
-            <literallayout class='monospaced'>
-     inherit bluetooth
-     PACKAGECONFIG ??= "${@bb.utils.contains('DISTRO_FEATURES', 'bluetooth', '${BLUEZ}', '', d)}"
-     PACKAGECONFIG[bluez4] = "--enable-bluetooth,--disable-bluetooth,bluez4"
-     PACKAGECONFIG[bluez5] = "--enable-bluez5,--disable-bluez5,bluez5"
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='migration-1.8-kernel-build-changes'>
-        <title>Kernel Build Changes</title>
-
-        <para>
-            The kernel build process was changed to place the source
-            in a common shared work area and to place build artifacts
-            separately in the source code tree.
-            In theory, migration paths have been provided for most common
-            usages in kernel recipes but this might not work in all cases.
-            In particular, users need to ensure that
-            <filename>${S}</filename> (source files) and
-            <filename>${B}</filename> (build artifacts) are used
-            correctly in functions such as
-            <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>
-            and
-            <link linkend='ref-tasks-install'><filename>do_install</filename></link>.
-            For kernel recipes that do not inherit from
-            <filename>kernel-yocto</filename> or include
-            <filename>linux-yocto.inc</filename>, you might wish to
-            refer to the <filename>linux.inc</filename> file in the
-            <filename>meta-oe</filename> layer for the kinds of changes you
-            need to make.
-            For reference, here is the
-            <ulink url='http://cgit.openembedded.org/meta-openembedded/commit/meta-oe/recipes-kernel/linux/linux.inc?id=fc7132ede27ac67669448d3d2845ce7d46c6a1ee'>commit</ulink>
-            where the <filename>linux.inc</filename> file in
-            <filename>meta-oe</filename> was updated.
-        </para>
-
-        <para>
-            Recipes that rely on the kernel source code and do not inherit
-            the module classes might need to add explicit dependencies on
-            the <filename>do_shared_workdir</filename> kernel task, for example:
-            <literallayout class='monospaced'>
-     do_configure[depends] += "virtual/kernel:do_shared_workdir"
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='migration-1.8-ssl'>
-        <title>SSL 3.0 is Now Disabled in OpenSSL</title>
-
-        <para>
-            SSL 3.0 is now disabled when building OpenSSL.
-            Disabling SSL 3.0 avoids any lingering instances of the POODLE
-            vulnerability.
-            If you feel you must re-enable SSL 3.0, then you can add an
-            append file (<filename>*.bbappend</filename>) for the
-            <filename>openssl</filename> recipe to remove "-no-ssl3"
-            from
-            <link linkend='var-EXTRA_OECONF'><filename>EXTRA_OECONF</filename></link>.
-        </para>
-    </section>
-
-    <section id='migration-1.8-default-sysroot-poisoning'>
-        <title>Default Sysroot Poisoning</title>
-
-        <para>
-            <filename>gcc's</filename> default sysroot and include directories
-            are now "poisoned".
-            In other words, the sysroot and include directories are being
-            redirected to a non-existent location in order to catch when
-            host directories are being used due to the correct options not
-            being passed.
-            This poisoning applies both to the cross-compiler used within the
-            build and to the cross-compiler produced in the SDK.
-        </para>
-
-        <para>
-            If this change causes something in the build to fail, it almost
-            certainly means the various compiler flags and commands are not
-            being passed correctly to the underlying piece of software.
-            In such cases, you need to take corrective steps.
-        </para>
-    </section>
-
-    <section id='migration-1.8-rebuild-improvements'>
-        <title>Rebuild Improvements</title>
-
-        <para>
-            Changes have been made to the
-            <link linkend='ref-classes-base'><filename>base</filename></link>,
-            <link linkend='ref-classes-autotools'><filename>autotools</filename></link>,
-            and
-            <link linkend='ref-classes-cmake'><filename>cmake</filename></link>
-            classes to clean out generated files when the
-            <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>
-            task needs to be re-executed.
-        </para>
-
-        <para>
-            One of the improvements is to attempt to run "make clean" during
-            the <filename>do_configure</filename> task if a
-            <filename>Makefile</filename> exists.
-            Some software packages do not provide a working clean target
-            within their make files.
-            If you have such recipes, you need to set
-            <link linkend='var-CLEANBROKEN'><filename>CLEANBROKEN</filename></link>
-            to "1" within the recipe, for example:
-            <literallayout class='monospaced'>
-     CLEANBROKEN = "1"
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='migration-1.8-qa-check-and-validation-changes'>
-        <title>QA Check and Validation Changes</title>
-
-        <para>
-            The following QA Check and Validation Changes have occurred:
-            <itemizedlist>
-                <listitem><para>
-                    Usage of <filename>PRINC</filename>
-                    previously triggered a warning.
-                    It now triggers an error.
-                    You should remove any remaining usage of
-                    <filename>PRINC</filename> in any recipe or append file.
-                    </para></listitem>
-                <listitem><para>
-                    An additional QA check has been added to detect usage of
-                    <filename>${D}</filename> in
-                    <link linkend='var-FILES'><filename>FILES</filename></link>
-                    values where
-                    <link linkend='var-D'><filename>D</filename></link> values
-                    should not be used at all.
-                    The same check ensures that <filename>$D</filename> is used
-                    in
-                    <filename>pkg_preinst/pkg_postinst/pkg_prerm/pkg_postrm</filename>
-                    functions instead of <filename>${D}</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <link linkend='var-S'><filename>S</filename></link> now
-                    needs to be set to a valid value within a recipe.
-                    If <filename>S</filename> is not set in the recipe, the
-                    directory is not automatically created.
-                    If <filename>S</filename> does not point to a directory
-                    that exists at the time the
-                    <link linkend='ref-tasks-unpack'><filename>do_unpack</filename></link>
-                    task finishes, a warning will be shown.
-                    </para></listitem>
-                <listitem><para>
-                    <link linkend='var-LICENSE'><filename>LICENSE</filename></link>
-                    is now validated for correct formatting of multiple
-                    licenses.
-                    If the format is invalid (e.g. multiple licenses are
-                    specified with no operators to specify how the multiple
-                    licenses interact), then a warning will be shown.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-1.8-miscellaneous-changes'>
-        <title>Miscellaneous Changes</title>
-
-        <para>
-            The following miscellaneous changes have occurred:
-            <itemizedlist>
-                <listitem><para>
-                    The <filename>send-error-report</filename> script now
-                    expects a "-s" option to be specified before the server
-                    address.
-                    This assumes a server address is being specified.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>oe-pkgdata-util</filename> script now
-                    expects a "-p" option to be specified before the
-                    <filename>pkgdata</filename> directory, which is now
-                    optional.
-                    If the <filename>pkgdata</filename> directory is not
-                    specified, the script will run BitBake to query
-                    <link linkend='var-PKGDATA_DIR'><filename>PKGDATA_DIR</filename></link>
-                    from the build environment.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='moving-to-the-yocto-project-2.0-release'>
-    <title>Moving to the Yocto Project 2.0 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 2.0 Release from the prior release.
-    </para>
-
-    <section id='migration-2.0-gcc-5'>
-        <title>GCC 5</title>
-
-        <para>
-            The default compiler is now GCC 5.2.
-            This change has required fixes for compilation errors in a number
-            of other recipes.
-        </para>
-
-        <para>
-            One important example is a fix for when the Linux kernel freezes at
-            boot time on ARM when built with GCC 5.
-            If you are using your own kernel recipe or source tree and
-            building for ARM, you will likely need to apply this
-            <ulink url='https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit?id=a077224fd35b2f7fbc93f14cf67074fc792fbac2'>patch</ulink>.
-            The standard <filename>linux-yocto</filename> kernel source tree
-            already has a workaround for the same issue.
-        </para>
-
-        <para>
-            For further details, see
-            <ulink url='https://gcc.gnu.org/gcc-5/changes.html'></ulink> and
-            the porting guide at
-            <ulink url='https://gcc.gnu.org/gcc-5/porting_to.html'></ulink>.
-        </para>
-
-        <para>
-            Alternatively, you can switch back to GCC 4.9 or 4.8 by
-            setting <filename>GCCVERSION</filename> in your configuration,
-            as follows:
-            <literallayout class='monospaced'>
-     GCCVERSION = "4.9%"
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='migration-2.0-Gstreamer-0.10-removed'>
-        <title>Gstreamer 0.10 Removed</title>
-
-        <para>
-            Gstreamer 0.10 has been removed in favor of Gstreamer 1.x.
-            As part of the change, recipes for Gstreamer 0.10 and related
-            software are now located
-            in <filename>meta-multimedia</filename>.
-            This change results in Qt4 having Phonon and Gstreamer
-            support in QtWebkit disabled by default.
-        </para>
-    </section>
-
-    <section id='migration-2.0-removed-recipes'>
-        <title>Removed Recipes</title>
-
-        <para>
-            The following recipes have been moved or removed:
-            <itemizedlist>
-                <listitem><para>
-                    <filename>bluez4</filename>: The recipe is obsolete and
-                    has been moved due to <filename>bluez5</filename>
-                    becoming fully integrated.
-                    The <filename>bluez4</filename> recipe now resides in
-                    <filename>meta-oe</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gamin</filename>: The recipe is obsolete and
-                    has been removed.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gnome-icon-theme</filename>: The recipe's
-                    functionally has been replaced by
-                    <filename>adwaita-icon-theme</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    Gstreamer 0.10 Recipes: Recipes for Gstreamer 0.10 have
-                    been removed in favor of the recipes for Gstreamer 1.x.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>insserv</filename>: The recipe is obsolete and
-                    has been removed.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libunique</filename>: The recipe is no longer
-                    used and has been moved to <filename>meta-oe</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>midori</filename>: The recipe's functionally
-                    has been replaced by <filename>epiphany</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>python-gst</filename>: The recipe is obsolete
-                    and has been removed since it only contains bindings for
-                    Gstreamer 0.10.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>qt-mobility</filename>: The recipe is obsolete and
-                    has been removed since it requires
-                    <filename>Gstreamer 0.10</filename>, which has been
-                    replaced.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>subversion</filename>: All 1.6.x versions of this
-                    recipe have been removed.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>webkit-gtk</filename>: The older 1.8.3 version
-                    of this recipe has been removed in favor of
-                    <filename>webkitgtk</filename>.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.0-bitbake-datastore-improvements'>
-        <title>BitBake datastore improvements</title>
-
-        <para>
-            The method by which BitBake's datastore handles overrides has
-            changed.
-            Overrides are now applied dynamically and
-            <filename>bb.data.update_data()</filename> is now a no-op.
-            Thus, <filename>bb.data.update_data()</filename> is no longer
-            required in order to apply the correct overrides.
-            In practice, this change is unlikely to require any changes to
-            Metadata.
-            However, these minor changes in behavior exist:
-            <itemizedlist>
-                <listitem><para>
-                    All potential overrides are now visible in the variable
-                    history as seen when you run the following:
-                    <literallayout class='monospaced'>
-     $ bitbake -e
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>d.delVar('</filename><replaceable>VARNAME</replaceable><filename>')</filename> and
-                    <filename>d.setVar('</filename><replaceable>VARNAME</replaceable><filename>', None)</filename>
-                    result in the variable and all of its overrides being
-                    cleared out.
-                    Before the change, only the non-overridden values
-                    were cleared.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.0-shell-message-function-changes'>
-        <title>Shell Message Function Changes</title>
-
-        <para>
-            The shell versions of the BitBake message functions (i.e.
-            <filename>bbdebug</filename>, <filename>bbnote</filename>,
-            <filename>bbwarn</filename>, <filename>bbplain</filename>,
-            <filename>bberror</filename>, and <filename>bbfatal</filename>)
-            are now connected through to their BitBake equivalents
-            <filename>bb.debug()</filename>, <filename>bb.note()</filename>,
-            <filename>bb.warn()</filename>, <filename>bb.plain()</filename>,
-            <filename>bb.error()</filename>, and
-            <filename>bb.fatal()</filename>, respectively.
-            Thus, those message functions that you would expect to be printed
-            by the BitBake UI are now actually printed.
-            In practice, this change means two things:
-            <itemizedlist>
-                <listitem><para>
-                    If you now see messages on the console that you did not
-                    previously see as a result of this change, you might
-                    need to clean up the calls to
-                    <filename>bbwarn</filename>, <filename>bberror</filename>,
-                    and so forth.
-                    Or, you might want to simply remove the calls.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>bbfatal</filename> message function now
-                    suppresses the full error log in the UI, which means any
-                    calls to <filename>bbfatal</filename> where you still
-                    wish to see the full error log should be replaced by
-                    <filename>die</filename> or
-                    <filename>bbfatal_log</filename>.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.0-extra-development-debug-package-cleanup'>
-        <title>Extra Development/Debug Package Cleanup</title>
-
-        <para>
-            The following recipes have had extra
-            <filename>dev/dbg</filename> packages removed:
-            <itemizedlist>
-                <listitem><para>
-                    <filename>acl</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>apmd</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>aspell</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>attr</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>augeas</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>bzip2</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>cogl</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>curl</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>elfutils</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gcc-target</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libgcc</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libtool</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libxmu</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>opkg</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>pciutils</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>rpm</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>sysfsutils</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>tiff</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>xz</filename>
-                    </para></listitem>
-            </itemizedlist>
-            All of the above recipes now conform to the standard packaging
-            scheme where a single <filename>-dev</filename>,
-            <filename>-dbg</filename>, and <filename>-staticdev</filename>
-            package exists per recipe.
-        </para>
-    </section>
-
-    <section id='migration-2.0-recipe-maintenance-tracking-data-moved-to-oe-core'>
-        <title>Recipe Maintenance Tracking Data Moved to OE-Core</title>
-
-        <para>
-            Maintenance tracking data for recipes that was previously part
-            of <filename>meta-yocto</filename> has been moved to
-            <link linkend='oe-core'>OE-Core</link>.
-            The change includes <filename>package_regex.inc</filename> and
-            <filename>distro_alias.inc</filename>, which are typically enabled
-            when using the <filename>distrodata</filename> class.
-            Additionally, the contents of
-            <filename>upstream_tracking.inc</filename> has now been split out
-            to the relevant recipes.
-        </para>
-    </section>
-
-    <section id='migration-2.0-automatic-stale-sysroot-file-cleanup'>
-        <title>Automatic Stale Sysroot File Cleanup</title>
-
-        <para>
-            Stale files from recipes that no longer exist in the current
-            configuration are now automatically removed from
-            sysroot as well as removed from
-            any other place managed by shared state.
-            This automatic cleanup means that the build system now properly
-            handles situations such as renaming the build system side of
-            recipes, removal of layers from
-            <filename>bblayers.conf</filename>, and
-            <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>
-            changes.
-        </para>
-
-        <para>
-            Additionally, work directories for old versions of recipes are
-            now pruned.
-            If you wish to disable pruning old work directories, you can set
-            the following variable in your configuration:
-            <literallayout class='monospaced'>
-     SSTATE_PRUNE_OBSOLETEWORKDIR = "0"
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='migration-2.0-linux-yocto-kernel-metadata-repository-now-split-from-source'>
-        <title><filename>linux-yocto</filename> Kernel Metadata Repository Now Split from Source</title>
-
-        <para>
-            The <filename>linux-yocto</filename> tree has up to now been a
-            combined set of kernel changes and configuration (meta) data
-            carried in a single tree.
-            While this format is effective at keeping kernel configuration and
-            source modifications synchronized, it is not always obvious to
-            developers how to manipulate the Metadata as compared to the
-            source.
-        </para>
-
-        <para>
-            Metadata processing has now been removed from the
-            <link linkend='ref-classes-kernel-yocto'><filename>kernel-yocto</filename></link>
-            class and the external Metadata repository
-            <filename>yocto-kernel-cache</filename>, which has always been used
-            to seed the <filename>linux-yocto</filename> "meta" branch.
-            This separate <filename>linux-yocto</filename> cache repository
-            is now the primary location for this data.
-            Due to this change, <filename>linux-yocto</filename> is no longer
-            able to process combined trees.
-            Thus, if you need to have your own combined kernel repository,
-            you must do the split there as well and update your recipes
-            accordingly.
-            See the <filename>meta/recipes-kernel/linux/linux-yocto_4.1.bb</filename>
-            recipe for an example.
-        </para>
-    </section>
-
-    <section id='migration-2.0-additional-qa-checks'>
-        <title>Additional QA checks</title>
-
-        <para>
-            The following QA checks have been added:
-            <itemizedlist>
-                <listitem><para>
-                    Added a "host-user-contaminated" check for ownership
-                    issues for packaged files outside of
-                    <filename>/home</filename>.
-                    The check looks for files that are incorrectly owned by the
-                    user that ran BitBake instead of owned by a valid user in
-                    the target system.
-                    </para></listitem>
-                <listitem><para>
-                    Added an "invalid-chars" check for invalid (non-UTF8)
-                    characters in recipe metadata variable values
-                    (i.e.
-                    <link linkend='var-DESCRIPTION'><filename>DESCRIPTION</filename></link>,
-                    <link linkend='var-SUMMARY'><filename>SUMMARY</filename></link>,
-                    <link linkend='var-LICENSE'><filename>LICENSE</filename></link>,
-                    and
-                    <link linkend='var-SECTION'><filename>SECTION</filename></link>).
-                    Some package managers do not support these characters.
-                    </para></listitem>
-                <listitem><para>
-                    Added an "invalid-packageconfig" check for any options
-                    specified in
-                    <link linkend='var-PACKAGECONFIG'><filename>PACKAGECONFIG</filename></link>
-                    that do not match any <filename>PACKAGECONFIG</filename>
-                    option defined for the recipe.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.0-miscellaneous'>
-        <title>Miscellaneous Changes</title>
-
-        <para>
-            These additional changes exist:
-            <itemizedlist>
-                <listitem><para>
-                    <filename>gtk-update-icon-cache</filename> has been
-                    renamed to <filename>gtk-icon-utils</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>tools-profile</filename>
-                    <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>
-                    item as well as its corresponding packagegroup and
-                    <filename>packagegroup-core-tools-profile</filename> no
-                    longer bring in <filename>oprofile</filename>.
-                    Bringing in <filename>oprofile</filename> was originally
-                    added to aid compilation on resource-constrained
-                    targets.
-                    However, this aid has not been widely used and is not
-                    likely to be used going forward due to the more powerful
-                    target platforms and the existence of better
-                    cross-compilation tools.
-                    </para></listitem>
-                <listitem><para>
-                    The
-                    <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>
-                    variable's default value now specifies
-                    <filename>ext4</filename> instead of
-                    <filename>ext3</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    All support for the <filename>PRINC</filename>
-                    variable has been removed.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>packagegroup-core-full-cmdline</filename>
-                    packagegroup no longer brings in
-                    <filename>lighttpd</filename> due to the fact that
-                    bringing in <filename>lighttpd</filename> is not really in
-                    line with the packagegroup's purpose, which is to add full
-                    versions of command-line tools that by default are
-                    provided by <filename>busybox</filename>.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='moving-to-the-yocto-project-2.1-release'>
-    <title>Moving to the Yocto Project 2.1 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 2.1 Release from the prior release.
-    </para>
-
-    <section id='migration-2.1-variable-expansion-in-python-functions'>
-        <title>Variable Expansion in Python Functions</title>
-
-        <para>
-            Variable expressions, such as
-            <filename>${</filename><replaceable>VARNAME</replaceable><filename>}</filename>
-            no longer expand automatically within Python functions.
-            Suppressing expansion was done to allow Python functions to
-            construct shell scripts or other code for situations in which you
-            do not want such expressions expanded.
-            For any existing code that relies on these expansions, you need to
-            change the expansions to expand the value of individual
-            variables through <filename>d.getVar()</filename>.
-            To alternatively expand more complex expressions,
-            use <filename>d.expand()</filename>.
-        </para>
-    </section>
-
-    <section id='migration-2.1-overrides-must-now-be-lower-case'>
-        <title>Overrides Must Now be Lower-Case</title>
-
-        <para>
-            The convention for overrides has always been for them to be
-            lower-case characters.
-            This practice is now a requirement as BitBake's datastore now
-            assumes lower-case characters in order to give a slight performance
-            boost during parsing.
-            In practical terms, this requirement means that anything that ends
-            up in
-            <link linkend='var-OVERRIDES'><filename>OVERRIDES</filename></link>
-            must now appear in lower-case characters (e.g. values for
-            <filename>MACHINE</filename>, <filename>TARGET_ARCH</filename>,
-            <filename>DISTRO</filename>, and also recipe names if
-            <filename>_pn-</filename><replaceable>recipename</replaceable>
-            overrides are to be effective).
-        </para>
-    </section>
-
-    <section id='migration-2.1-expand-parameter-to-getvar-and-getvarflag-now-mandatory'>
-        <title>Expand Parameter to <filename>getVar()</filename> and
-            <filename>getVarFlag()</filename> is Now Mandatory</title>
-
-        <para>
-            The expand parameter to <filename>getVar()</filename> and
-            <filename>getVarFlag()</filename> previously defaulted to
-            False if not specified.
-            Now, however, no default exists so one must be specified.
-            You must change any <filename>getVar()</filename> calls that
-            do not specify the final expand parameter to calls that do specify
-            the parameter.
-            You can run the following <filename>sed</filename> command at the
-            base of a layer to make this change:
-            <literallayout class='monospaced'>
-     sed -e 's:\(\.getVar([^,()]*\)):\1, False):g' -i `grep -ril getVar *`
-     sed -e 's:\(\.getVarFlag([^,()]*, [^,()]*\)):\1, False):g' -i `grep -ril getVarFlag *`
-            </literallayout>
-            <note>
-                The reason for this change is that it prepares the way for
-                changing the default to True in a future Yocto Project release.
-                This future change is a much more sensible default than False.
-                However, the change needs to be made gradually as a sudden
-                change of the default would potentially cause side-effects
-                that would be difficult to detect.
-            </note>
-        </para>
-    </section>
-
-    <section id='migration-2.1-makefile-environment-changes'>
-        <title>Makefile Environment Changes</title>
-
-        <para>
-            <link linkend='var-EXTRA_OEMAKE'><filename>EXTRA_OEMAKE</filename></link>
-            now defaults to "" instead of "-e MAKEFLAGS=".
-            Setting <filename>EXTRA_OEMAKE</filename> to "-e MAKEFLAGS=" by
-            default was a historical accident that has required many classes
-            (e.g. <filename>autotools</filename>, <filename>module</filename>)
-            and recipes to override this default in order to work with
-            sensible build systems.
-            When upgrading to the release, you must edit any recipe that
-            relies upon this old default by either setting
-            <filename>EXTRA_OEMAKE</filename> back to "-e MAKEFLAGS=" or by
-            explicitly setting any required variable value overrides using
-            <filename>EXTRA_OEMAKE</filename>, which is typically only needed
-            when a Makefile sets a default value for a variable that is
-            inappropriate for cross-compilation using the "=" operator rather
-            than the "?=" operator.
-        </para>
-    </section>
-
-    <section id='migration-2.1-libexecdir-reverted-to-prefix-libexec'>
-        <title><filename>libexecdir</filename> Reverted to <filename>${prefix}/libexec</filename></title>
-
-        <para>
-            The use of <filename>${libdir}/${BPN}</filename> as
-            <filename>libexecdir</filename> is different as compared to all
-            other mainstream distributions, which either uses
-            <filename>${prefix}/libexec</filename> or
-            <filename>${libdir}</filename>.
-            The use is also contrary to the GNU Coding Standards
-            (i.e. <ulink url='https://www.gnu.org/prep/standards/html_node/Directory-Variables.html'></ulink>)
-            that suggest <filename>${prefix}/libexec</filename> and also
-            notes that any package-specific nesting should be done by the
-            package itself.
-            Finally, having <filename>libexecdir</filename> change between
-            recipes makes it very difficult for different recipes to invoke
-            binaries that have been installed into
-            <filename>libexecdir</filename>.
-            The Filesystem Hierarchy Standard
-            (i.e. <ulink url='http://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch04s07.html'></ulink>)
-            now recognizes the use of <filename>${prefix}/libexec/</filename>,
-            giving distributions the choice between
-            <filename>${prefix}/lib</filename> or
-            <filename>${prefix}/libexec</filename> without breaking FHS.
-        </para>
-    </section>
-
-    <section id='migration-2.1-ac-cv-sizeof-off-t-no-longer-cached-in-site-files'>
-        <title><filename>ac_cv_sizeof_off_t</filename> is No Longer Cached in Site Files</title>
-
-        <para>
-            For recipes inheriting the
-            <link linkend='ref-classes-autotools'><filename>autotools</filename></link>
-            class, <filename>ac_cv_sizeof_off_t</filename> is no longer cached
-            in the site files for <filename>autoconf</filename>.
-            The reason for this change is because the
-            <filename>ac_cv_sizeof_off_t</filename> value is not necessarily
-            static per architecture as was previously assumed.
-            Rather, the value changes based on whether large file support is
-            enabled.
-            For most software that uses <filename>autoconf</filename>, this
-            change should not be a problem.
-            However, if you have a recipe that bypasses the standard
-            <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>
-            task from the <filename>autotools</filename> class and the software
-            the recipe is building uses a very old version of
-            <filename>autoconf</filename>, the recipe might be incapable of
-            determining the correct size of <filename>off_t</filename> during
-            <filename>do_configure</filename>.
-        </para>
-
-        <para>
-            The best course of action is to patch the software as necessary
-            to allow the default implementation from the
-            <filename>autotools</filename> class to work such that
-            <filename>autoreconf</filename> succeeds and produces a working
-            configure script, and to remove the
-            overridden <filename>do_configure</filename> task such that the
-            default implementation does get used.
-        </para>
-    </section>
-
-    <section id='migration-2.1-image-generation-split-out-from-filesystem-generation'>
-        <title>Image Generation is Now Split Out from Filesystem Generation</title>
-
-        <para>
-            Previously, for image recipes the
-            <link linkend='ref-tasks-rootfs'><filename>do_rootfs</filename></link>
-            task assembled the filesystem and then from that filesystem
-            generated images.
-            With this Yocto Project release, image generation is split into
-            separate
-            <link linkend='ref-tasks-image'><filename>do_image_*</filename></link>
-            tasks for clarity both in operation and in the code.
-        </para>
-
-        <para>
-            For most cases, this change does not present any problems.
-            However, if you have made customizations that directly modify the
-            <filename>do_rootfs</filename> task or that mention
-            <filename>do_rootfs</filename>, you might need to update those
-            changes.
-            In particular, if you had added any tasks after
-            <filename>do_rootfs</filename>, you should make edits so that
-            those tasks are after the
-            <link linkend='ref-tasks-image-complete'><filename>do_image_complete</filename></link>
-            task rather than after <filename>do_rootfs</filename>
-            so that the your added tasks
-            run at the correct time.
-        </para>
-
-        <para>
-            A minor part of this restructuring is that the post-processing
-            definitions and functions have been moved from the
-            <link linkend='ref-classes-image'><filename>image</filename></link>
-            class to the
-            <link linkend='ref-classes-rootfs*'><filename>rootfs-postcommands</filename></link>
-            class.
-            Functionally, however, they remain unchanged.
-        </para>
-    </section>
-
-    <section id='migration-2.1-removed-recipes'>
-        <title>Removed Recipes</title>
-
-        <para>
-            The following recipes have been removed in the 2.1 release:
-            <itemizedlist>
-                <listitem><para><filename>gcc</filename> version 4.8:
-                    Versions 4.9 and 5.3 remain.
-                    </para></listitem>
-                <listitem><para><filename>qt4</filename>:
-                    All support for Qt 4.x has been moved out to a separate
-                    <filename>meta-qt4</filename> layer because Qt 4 is no
-                    longer supported upstream.
-                    </para></listitem>
-                <listitem><para><filename>x11vnc</filename>:
-                    Moved to the <filename>meta-oe</filename> layer.
-                    </para></listitem>
-                <listitem><para><filename>linux-yocto-3.14</filename>:
-                    No longer supported.
-                    </para></listitem>
-                <listitem><para><filename>linux-yocto-3.19</filename>:
-                    No longer supported.
-                    </para></listitem>
-                <listitem><para><filename>libjpeg</filename>:
-                    Replaced by the <filename>libjpeg-turbo</filename> recipe.
-                    </para></listitem>
-                <listitem><para><filename>pth</filename>:
-                    Became obsolete.
-                    </para></listitem>
-                <listitem><para><filename>liboil</filename>:
-                    Recipe is no longer needed and has been moved to the
-                    <filename>meta-multimedia</filename> layer.
-                    </para></listitem>
-                <listitem><para><filename>gtk-theme-torturer</filename>:
-                    Recipe is no longer needed and has been moved to the
-                    <filename>meta-gnome</filename> layer.
-                    </para></listitem>
-                <listitem><para><filename>gnome-mime-data</filename>:
-                    Recipe is no longer needed and has been moved to the
-                    <filename>meta-gnome</filename> layer.
-                    </para></listitem>
-                <listitem><para><filename>udev</filename>:
-                    Replaced by the <filename>eudev</filename> recipe for
-                    compatibility when using <filename>sysvinit</filename>
-                    with newer kernels.
-                    </para></listitem>
-                <listitem><para><filename>python-pygtk</filename>:
-                    Recipe became obsolete.
-                    </para></listitem>
-                <listitem><para><filename>adt-installer</filename>:
-                    Recipe became obsolete.
-                    See the
-                    "<link linkend='migration-2.1-adt-removed'>ADT Removed</link>"
-                    section for more information.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.1-class-changes'>
-        <title>Class Changes</title>
-
-        <para>
-            The following classes have changed:
-            <itemizedlist>
-                <listitem><para><filename>autotools_stage</filename>:
-                    Removed because the
-                    <link linkend='ref-classes-autotools'><filename>autotools</filename></link>
-                    class now provides its functionality.
-                    Recipes that inherited from
-                    <filename>autotools_stage</filename> should now inherit
-                    from <filename>autotools</filename> instead.
-                    </para></listitem>
-                <listitem><para><filename>boot-directdisk</filename>:
-                    Merged into the <filename>image-vm</filename>
-                    class.
-                    The <filename>boot-directdisk</filename> class was rarely
-                    directly used.
-                    Consequently, this change should not cause any issues.
-                    </para></listitem>
-                <listitem><para><filename>bootimg</filename>:
-                    Merged into the
-                    <link linkend='ref-classes-image-live'><filename>image-live</filename></link>
-                    class.
-                    The <filename>bootimg</filename> class was rarely
-                    directly used.
-                    Consequently, this change should not cause any issues.
-                    </para></listitem>
-                <listitem><para><filename>packageinfo</filename>:
-                    Removed due to its limited use by the Hob UI, which has
-                    itself been removed.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.1-build-system-ui-changes'>
-        <title>Build System User Interface Changes</title>
-
-        <para>
-            The following changes have been made to the build system user
-            interface:
-            <itemizedlist>
-                <listitem><para><emphasis>Hob GTK+-based UI</emphasis>:
-                    Removed because it is unmaintained and based on the
-                    outdated GTK+ 2 library.
-                    The Toaster web-based UI is much more capable and is
-                    actively maintained.
-                    See the
-                    "<ulink url='&YOCTO_DOCS_TOAST_URL;#using-the-toaster-web-interface'>Using the Toaster Web Interface</ulink>"
-                    section in the Toaster User Manual for more
-                    information on this interface.
-                    </para></listitem>
-                <listitem><para><emphasis>"puccho" BitBake UI</emphasis>:
-                    Removed because is unmaintained and no longer useful.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.1-adt-removed'>
-        <title>ADT Removed</title>
-
-        <para>
-            The Application Development Toolkit (ADT) has been removed
-            because its functionality almost completely overlapped with the
-            <ulink url='&YOCTO_DOCS_SDK_URL;#sdk-using-the-standard-sdk'>standard SDK</ulink>
-            and the
-            <ulink url='&YOCTO_DOCS_SDK_URL;#sdk-extensible'>extensible SDK</ulink>.
-            For information on these SDKs and how to build and use them, see the
-            <ulink url='&YOCTO_DOCS_SDK_URL;'>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</ulink>
-            manual.
-            <note>
-                The Yocto Project Eclipse IDE Plug-in is still supported and
-                is not affected by this change.
-            </note>
-        </para>
-    </section>
-
-    <section id='migration-2.1-poky-reference-distribution-changes'>
-        <title>Poky Reference Distribution Changes</title>
-
-        <para>
-            The following changes have been made for the Poky distribution:
-            <itemizedlist>
-                <listitem><para>
-                    The <filename>meta-yocto</filename> layer has been renamed
-                    to <filename>meta-poky</filename> to better match its
-                    purpose, which is to provide the Poky reference
-                    distribution.
-                    The <filename>meta-yocto-bsp</filename> layer retains its
-                    original name since it provides reference machines for
-                    the Yocto Project and it is otherwise unrelated to Poky.
-                    References to <filename>meta-yocto</filename> in your
-                    <filename>conf/bblayers.conf</filename> should
-                    automatically be updated, so you should not need to change
-                    anything unless you are relying on this naming elsewhere.
-                    </para></listitem>
-                <listitem><para>
-                    The
-                    <link linkend='ref-classes-uninative'><filename>uninative</filename></link>
-                    class is now enabled by default in Poky.
-                    This class attempts to isolate the build system from the
-                    host distribution's C library and makes re-use of native
-                    shared state artifacts across different host distributions
-                    practical.
-                    With this class enabled, a tarball containing a pre-built
-                    C library is downloaded at the start of the build.</para>
-
-                    <para>The <filename>uninative</filename> class is enabled
-                    through the
-                    <filename>meta/conf/distro/include/yocto-uninative.inc</filename>
-                    file, which for those not using the Poky distribution, can
-                    include to easily enable the same functionality.</para>
-
-                    <para>Alternatively, if you wish to build your own
-                    <filename>uninative</filename> tarball, you can do so by
-                    building the <filename>uninative-tarball</filename> recipe,
-                    making it available to your build machines
-                    (e.g. over HTTP/HTTPS) and setting a similar configuration
-                    as the one set by <filename>yocto-uninative.inc</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    Static library generation, for most cases, is now disabled
-                    by default in the Poky distribution.
-                    Disabling this generation saves some build time as well
-                    as the size used for build output artifacts.</para>
-
-                    <para>Disabling this library generation is accomplished
-                    through a
-                    <filename>meta/conf/distro/include/no-static-libs.inc</filename>,
-                    which for those not using the Poky distribution can
-                    easily include to enable the same functionality.</para>
-
-                    <para>Any recipe that needs to opt-out of having the
-                    "--disable-static" option specified on the configure
-                    command line either because it is not a supported option
-                    for the configure script or because static libraries are
-                    needed should set the following variable:
-                    <literallayout class='monospaced'>
-     DISABLE_STATIC = ""
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    The separate <filename>poky-tiny</filename> distribution
-                    now uses the musl C library instead of a heavily pared
-                    down <filename>glibc</filename>.
-                    Using musl results in a smaller
-                    distribution and facilitates much greater maintainability
-                    because musl is designed to have a small footprint.</para>
-
-                    <para>If you have used <filename>poky-tiny</filename> and
-                    have customized the <filename>glibc</filename>
-                    configuration you will need to redo those customizations
-                    with musl when upgrading to the new release.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.1-packaging-changes'>
-        <title>Packaging Changes</title>
-
-        <para>
-            The following changes have been made to packaging:
-            <itemizedlist>
-                <listitem><para>
-                    The <filename>runuser</filename> and
-                    <filename>mountpoint</filename> binaries, which were
-                    previously in the main <filename>util-linux</filename>
-                    package, have been split out into the
-                    <filename>util-linux-runuser</filename> and
-                    <filename>util-linux-mountpoint</filename> packages,
-                    respectively.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>python-elementtree</filename> package has
-                    been merged into the <filename>python-xml</filename>
-                    package.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.1-tuning-file-changes'>
-        <title>Tuning File Changes</title>
-
-        <para>
-            The following changes have been made to the tuning files:
-            <itemizedlist>
-                <listitem><para>
-                    The "no-thumb-interwork" tuning feature has been dropped
-                    from the ARM tune include files.
-                    Because interworking is required for ARM EABI, attempting
-                    to disable it through a tuning feature no longer makes
-                    sense.
-                    <note>
-                        Support for ARM OABI was deprecated in gcc 4.7.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>tune-cortexm*.inc</filename> and
-                    <filename>tune-cortexr4.inc</filename> files have been
-                    removed because they are poorly tested.
-                    Until the OpenEmbedded build system officially gains
-                    support for CPUs without an MMU, these tuning files would
-                    probably be better maintained in a separate layer
-                    if needed.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.1-supporting-gobject-introspection'>
-        <title>Supporting GObject Introspection</title>
-
-        <para>
-            This release supports generation of GLib Introspective
-            Repository (GIR) files through GObject introspection, which is
-            the standard mechanism for accessing GObject-based software from
-            runtime environments.
-            You can enable, disable, and test the generation of this data.
-            See the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#enabling-gobject-introspection-support'>Enabling GObject Introspection Support</ulink>"
-            section in the Yocto Project Development Tasks Manual
-            for more information.
-        </para>
-    </section>
-
-    <section id='migration-2.1-miscellaneous-changes'>
-        <title>Miscellaneous Changes</title>
-
-        <para>
-            These additional changes exist:
-            <itemizedlist>
-                <listitem><para>
-                    The minimum Git version has been increased to 1.8.3.1.
-                    If your host distribution does not provide a sufficiently
-                    recent version, you can install the buildtools, which
-                    will provide it.
-                    See the
-                    "<link linkend='required-git-tar-python-and-gcc-versions'>Required Git, tar, Python and gcc Versions</link>"
-                    section for more information on the buildtools tarball.
-                    </para></listitem>
-                <listitem><para>
-                    The buggy and incomplete support for the RPM version 4
-                    package manager has been removed.
-                    The well-tested and maintained support for RPM version 5
-                    remains.
-                    </para></listitem>
-                <listitem><para>
-                    Previously, the following list of packages were removed
-                    if package-management was not in
-                    <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>,
-                    regardless of any dependencies:
-                    <literallayout class='monospaced'>
-     update-rc.d
-     base-passwd
-     shadow
-     update-alternatives
-     run-postinsts
-                    </literallayout>
-                    With the Yocto Project 2.1 release, these packages are only
-                    removed if "read-only-rootfs" is in
-                    <filename>IMAGE_FEATURES</filename>, since they might
-                    still be needed for a read-write image even in the absence
-                    of a package manager (e.g. if users need to be added,
-                    modified, or removed at runtime).
-                    </para></listitem>
-                <listitem><para>
-                    The
-                    <ulink url='&YOCTO_DOCS_SDK_URL;#sdk-devtool-use-devtool-modify-to-modify-the-source-of-an-existing-component'><filename>devtool modify</filename></ulink>
-                    command now defaults to extracting the source since that
-                    is most commonly expected.
-                    The "-x" or "--extract" options are now no-ops.
-                    If you wish to provide your own existing source tree, you
-                    will now need to specify either the "-n" or
-                    "--no-extract" options when running
-                    <filename>devtool modify</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    If the formfactor for a machine is either not supplied
-                    or does not specify whether a keyboard is attached, then
-                    the default is to assume a keyboard is attached rather
-                    than assume no keyboard.
-                    This change primarily affects the Sato UI.
-                   </para></listitem>
-                <listitem><para>
-                    The <filename>.debug</filename> directory packaging is
-                    now automatic.
-                    If your recipe builds software that installs binaries into
-                    directories other than the standard ones, you no longer
-                    need to take care of setting
-                    <filename>FILES_${PN}-dbg</filename> to pick up the
-                    resulting <filename>.debug</filename> directories as these
-                    directories are automatically found and added.
-                    </para></listitem>
-                <listitem><para>
-                    Inaccurate disk and CPU percentage data has been dropped
-                    from <filename>buildstats</filename> output.
-                    This data has been replaced with
-                    <filename>getrusage()</filename> data and corrected IO
-                    statistics.
-                    You will probably need to update any custom code that reads
-                    the <filename>buildstats</filename> data.
-                    </para></listitem>
-                <listitem><para>
-                    The
-                    <filename>meta/conf/distro/include/package_regex.inc</filename>
-                    is now deprecated.
-                    The contents of this file have been moved to individual
-                    recipes.
-                    <note><title>Tip</title>
-                        Because this file will likely be removed in a future
-                        Yocto Project release, it is suggested that you remove
-                        any references to the file that might be in your
-                        configuration.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>v86d/uvesafb</filename> has been removed from
-                    the <filename>genericx86</filename> and
-                    <filename>genericx86-64</filename> reference machines,
-                    which are provided by the
-                    <filename>meta-yocto-bsp</filename> layer.
-                    Most modern x86 boards do not rely on this file and it only
-                    adds kernel error messages during startup.
-                    If you do still need to support
-                    <filename>uvesafb</filename>, you can
-                    simply add <filename>v86d</filename> to your image.
-                    </para></listitem>
-                <listitem><para>
-                     Build sysroot paths are now removed from debug symbol
-                     files.
-                     Removing these paths means that remote GDB using an
-                     unstripped build system sysroot will no longer work
-                     (although this was never documented to work).
-                     The supported method to accomplish something similar is
-                     to set <filename>IMAGE_GEN_DEBUGFS</filename> to "1",
-                     which will generate a companion debug image
-                     containing unstripped binaries and associated debug
-                     sources alongside the image.
-                     </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='moving-to-the-yocto-project-2.2-release'>
-    <title>Moving to the Yocto Project 2.2 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 2.2 Release from the prior release.
-    </para>
-
-    <section id='migration-2.2-minimum-kernel-version'>
-        <title>Minimum Kernel Version</title>
-
-        <para>
-            The minimum kernel version for the target system and for SDK
-            is now 3.2.0, due to the upgrade
-            to <filename>glibc 2.24</filename>.
-            Specifically, for AArch64-based targets the version is
-            3.14.
-            For Nios II-based targets, the minimum kernel version is 3.19.
-            <note>
-                For x86 and x86_64, you can reset
-                <link linkend='var-OLDEST_KERNEL'><filename>OLDEST_KERNEL</filename></link>
-                to anything down to 2.6.32 if desired.
-            </note>
-        </para>
-    </section>
-
-    <section id='migration-2.2-staging-directories-in-sysroot-simplified'>
-        <title>Staging Directories in Sysroot Has Been Simplified</title>
-
-        <para>
-            The way directories are staged in sysroot has been simplified and
-            introduces the new
-            <link linkend='var-SYSROOT_DIRS'><filename>SYSROOT_DIRS</filename></link>,
-            <link linkend='var-SYSROOT_DIRS_NATIVE'><filename>SYSROOT_DIRS_NATIVE</filename></link>,
-            and
-            <link linkend='var-SYSROOT_DIRS_BLACKLIST'><filename>SYSROOT_DIRS_BLACKLIST</filename></link>.
-            See the
-            <ulink url='http://lists.openembedded.org/pipermail/openembedded-core/2016-May/121365.html'>v2 patch series on the OE-Core Mailing List</ulink>
-            for additional information.
-        </para>
-    </section>
-
-    <section id='migration-2.2-removal-of-old-images-from-tmp-deploy-now-enabled'>
-        <title>Removal of Old Images and Other Files in <filename>tmp/deploy</filename> Now Enabled</title>
-
-        <para>
-            Removal of old images and other files in
-            <filename>tmp/deploy/</filename> is now enabled by default due
-            to a new staging method used for those files.
-            As a result of this change, the
-            <filename>RM_OLD_IMAGE</filename> variable is now redundant.
-        </para>
-    </section>
-
-    <section id='migration-2.2-python-changes'>
-        <title>Python Changes</title>
-
-        <para>
-            The following changes for Python occurred:
-        </para>
-
-        <section id='migration-2.2-bitbake-now-requires-python-3.4'>
-            <title>BitBake Now Requires Python 3.4+</title>
-
-            <para>
-                BitBake requires Python 3.4 or greater.
-            </para>
-        </section>
-
-        <section id='migration-2.2-utf-8-locale-required-on-build-host'>
-            <title>UTF-8 Locale Required on Build Host</title>
-
-            <para>
-                A UTF-8 locale is required on the build host due to Python 3.
-                Since C.UTF-8 is not a standard, the default is en_US.UTF-8.
-            </para>
-        </section>
-
-        <section id='migration-2.2-metadata-now-must-use-python-3-syntax'>
-            <title>Metadata Must Now Use Python 3 Syntax</title>
-
-            <para>
-                The metadata is now required to use Python 3 syntax.
-                For help preparing metadata, see any of the many Python 3 porting
-                guides available.
-                Alternatively, you can reference the conversion commits for Bitbake
-                and you can use
-                <link linkend='oe-core'>OE-Core</link> as a guide for changes.
-                Following are particular areas of interest:
-                <literallayout class='monospaced'>
-     * subprocess command-line pipes needing locale decoding
-     * the syntax for octal values changed
-     * the <filename>iter*()</filename> functions changed name
-     * iterators now return views, not lists
-     * changed names for Python modules
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='migration-2.2-target-python-recipes-switched-to-python-3'>
-            <title>Target Python Recipes Switched to Python 3</title>
-
-            <para>
-                Most target Python recipes have now been switched to Python 3.
-                Unfortunately, systems using RPM as a package manager and
-                providing online package-manager support through SMART still
-                require Python 2.
-                <note>
-                    Python 2 and recipes that use it can still be built for the
-                    target as with previous versions.
-                </note>
-            </para>
-        </section>
-
-        <section id='migration-2.2-buildtools-tarball-includes-python-3'>
-            <title><filename>buildtools-tarball</filename> Includes Python 3</title>
-
-            <para>
-                <filename>buildtools-tarball</filename> now includes Python 3.
-            </para>
-        </section>
-    </section>
-
-    <section id='migration-2.2-uclibc-replaced-by-musl'>
-        <title>uClibc Replaced by musl</title>
-
-        <para>
-            uClibc has been removed in favor of musl.
-            Musl has matured, is better maintained, and is compatible with a
-            wider range of applications as compared to uClibc.
-        </para>
-    </section>
-
-    <section id='migration-2.2-B-no-longer-default-working-directory-for-tasks'>
-        <title><filename>${B}</filename> No Longer Default Working Directory for Tasks</title>
-
-        <para>
-            <filename>${</filename><link linkend='var-B'><filename>B</filename></link><filename>}</filename>
-            is no longer the default working directory for tasks.
-            Consequently, any custom tasks you define now need to either
-            have the
-            <filename>[</filename><ulink url='&YOCTO_DOCS_BB_URL;#variable-flags'><filename>dirs</filename></ulink><filename>]</filename> flag set, or the task needs to change into the
-            appropriate working directory manually (e.g using
-            <filename>cd</filename> for a shell task).
-            <note>
-                The preferred method is to use the
-                <filename>[dirs]</filename> flag.
-            </note>
-        </para>
-    </section>
-
-    <section id='migration-2.2-runqemu-ported-to-python'>
-        <title><filename>runqemu</filename> Ported to Python</title>
-
-        <para>
-            <filename>runqemu</filename> has been ported to Python and has
-            changed behavior in some cases.
-            Previous usage patterns continue to be supported.
-        </para>
-
-        <para>
-            The new <filename>runqemu</filename> is a Python script.
-            Machine knowledge is no longer hardcoded into
-            <filename>runqemu</filename>.
-            You can choose to use the <filename>qemuboot</filename>
-            configuration file to define the BSP's own arguments and to make
-            it bootable with <filename>runqemu</filename>.
-            If you use a configuration file, use the following form:
-            <literallayout class='monospaced'>
-     <replaceable>image-name</replaceable>-<replaceable>machine</replaceable>.qemuboot.conf
-            </literallayout>
-            The configuration file enables fine-grained tuning of options
-            passed to QEMU without the <filename>runqemu</filename> script
-            hard-coding any knowledge about different machines.
-            Using a configuration file is particularly convenient when trying
-            to use QEMU with machines other than the
-            <filename>qemu*</filename> machines in
-            <link linkend='oe-core'>OE-Core</link>.
-            The <filename>qemuboot.conf</filename> file is generated by the
-            <filename>qemuboot</filename>
-            class when the root filesystem is being build (i.e.
-            build rootfs).
-            QEMU boot arguments can be set in BSP's configuration file and
-            the <filename>qemuboot</filename> class will save them to
-            <filename>qemuboot.conf</filename>.
-        </para>
-
-
-        <para>
-            If you want to use <filename>runqemu</filename> without a
-            configuration file, use the following command form:
-            <literallayout class='monospaced'>
-     $ runqemu <replaceable>machine</replaceable> <replaceable>rootfs</replaceable> <replaceable>kernel</replaceable> [<replaceable>options</replaceable>]
-            </literallayout>
-            Supported <replaceable>machines</replaceable> are as follows:
-            <literallayout class='monospaced'>
-     qemuarm
-     qemuarm64
-     qemux86
-     qemux86-64
-     qemuppc
-     qemumips
-     qemumips64
-     qemumipsel
-     qemumips64el
-            </literallayout>
-            Consider the following example, which uses the
-            <filename>qemux86-64</filename> machine,
-            provides a root filesystem, provides an image, and uses
-            the <filename>nographic</filename> option:
-            <literallayout class='monospaced'>
-$ runqemu qemux86-64 tmp/deploy/images/qemux86-64/core-image-minimal-qemux86-64.ext4 tmp/deploy/images/qemux86-64/bzImage nographic
-            </literallayout>
-        </para>
-
-        <para>
-            Following is a list of variables that can be set in configuration
-            files such as <filename>bsp.conf</filename> to enable the BSP
-            to be booted by <filename>runqemu</filename>:
-            <note>
-                "QB" means "QEMU Boot".
-            </note>
-            <literallayout class='monospaced'>
-     QB_SYSTEM_NAME: QEMU name (e.g. "qemu-system-i386")
-     QB_OPT_APPEND: Options to append to QEMU (e.g. "-show-cursor")
-     QB_DEFAULT_KERNEL: Default kernel to boot (e.g. "bzImage")
-     QB_DEFAULT_FSTYPE: Default FSTYPE to boot (e.g. "ext4")
-     QB_MEM: Memory (e.g. "-m 512")
-     QB_MACHINE: QEMU machine (e.g. "-machine virt")
-     QB_CPU: QEMU cpu (e.g. "-cpu qemu32")
-     QB_CPU_KVM: Similar to QB_CPU except used for kvm support (e.g. "-cpu kvm64")
-     QB_KERNEL_CMDLINE_APPEND: Options to append to the kernel's -append
-                               option (e.g. "console=ttyS0 console=tty")
-     QB_DTB: QEMU dtb name
-     QB_AUDIO_DRV: QEMU audio driver (e.g. "alsa", set it when support audio)
-     QB_AUDIO_OPT: QEMU audio option (e.g. "-soundhw ac97,es1370"), which is used
-                   when QB_AUDIO_DRV is set.
-     QB_KERNEL_ROOT: Kernel's root (e.g. /dev/vda)
-     QB_TAP_OPT: Network option for 'tap' mode (e.g.
-                 "-netdev tap,id=net0,ifname=@TAP@,script=no,downscript=no -device virtio-net-device,netdev=net0").
-                  runqemu will replace "@TAP@" with the one that is used, such as tap0, tap1 ...
-     QB_SLIRP_OPT: Network option for SLIRP mode (e.g. "-netdev user,id=net0 -device virtio-net-device,netdev=net0")
-     QB_ROOTFS_OPT: Used as rootfs (e.g.
-                    "-drive id=disk0,file=@ROOTFS@,if=none,format=raw -device virtio-blk-device,drive=disk0").
-                    runqemu will replace "@ROOTFS@" with the one which is used, such as
-                    core-image-minimal-qemuarm64.ext4.
-     QB_SERIAL_OPT: Serial port (e.g. "-serial mon:stdio")
-     QB_TCPSERIAL_OPT: tcp serial port option (e.g.
-                       " -device virtio-serial-device -chardev socket,id=virtcon,port=@PORT@,host=127.0.0.1 -device      virtconsole,chardev=virtcon"
-                       runqemu will replace "@PORT@" with the port number which is used.
-            </literallayout>
-        </para>
-
-        <para>
-            To use <filename>runqemu</filename>, set
-            <link linkend='var-IMAGE_CLASSES'><filename>IMAGE_CLASSES</filename></link>
-            as follows and run <filename>runqemu</filename>:
-            <note>
-                For command-line syntax, use
-                <filename>runqemu help</filename>.
-            </note>
-            <literallayout class='monospaced'>
-     IMAGE_CLASSES += "qemuboot"
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='migration-2.2-default-linker-hash-style-changed'>
-        <title>Default Linker Hash Style Changed</title>
-
-        <para>
-            The default linker hash style for <filename>gcc-cross</filename>
-            is now "sysv" in order to catch recipes that are building software
-            without using the OpenEmbedded
-            <link linkend='var-LDFLAGS'><filename>LDFLAGS</filename></link>.
-            This change could result in seeing some "No GNU_HASH in the elf
-            binary" QA issues when building such recipes.
-            You need to fix these recipes so that they use the expected
-            <filename>LDFLAGS</filename>.
-            Depending on how the software is built, the build system used by
-            the software (e.g. a Makefile) might need to be patched.
-            However, sometimes making this fix is as simple as adding the
-            following to the recipe:
-            <literallayout class='monospaced'>
-     TARGET_CC_ARCH += "${LDFLAGS}"
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='migration-2.2-kernel-image-base-name-no-longer-uses-kernel-imagetype'>
-        <title><filename>KERNEL_IMAGE_BASE_NAME</filename> no Longer Uses <filename>KERNEL_IMAGETYPE</filename></title>
-
-        <para>
-            The
-            <filename>KERNEL_IMAGE_BASE_NAME</filename>
-            variable no longer uses the
-            <link linkend='var-KERNEL_IMAGETYPE'><filename>KERNEL_IMAGETYPE</filename></link>
-            variable to create the image's base name.
-            Because the OpenEmbedded build system can now build multiple kernel
-            image types, this part of the kernel image base name as been
-            removed leaving only the following:
-            <literallayout class='monospaced'>
-     KERNEL_IMAGE_BASE_NAME ?= "${PKGE}-${PKGV}-${PKGR}-${MACHINE}-${DATETIME}"
-            </literallayout>
-            If you have recipes or classes that use
-            <filename>KERNEL_IMAGE_BASE_NAME</filename> directly, you might
-            need to update the references to ensure they continue to work.
-        </para>
-    </section>
-
-    <section id='migration-2.2-bitbake-changes'>
-        <title>BitBake Changes</title>
-
-        <para>
-            The following changes took place for BitBake:
-            <itemizedlist>
-                <listitem><para>
-                    The "goggle" UI and standalone image-writer tool have
-                    been removed as they both require GTK+ 2.0 and
-                    were not being maintained.
-                    </para></listitem>
-                <listitem><para>
-                    The Perforce fetcher now supports
-                    <link linkend='var-SRCREV'><filename>SRCREV</filename></link>
-                    for specifying the source revision to use, be it
-                    <filename>${</filename><link linkend='var-AUTOREV'><filename>AUTOREV</filename></link><filename>}</filename>,
-                    changelist number, p4date, or label, in preference to
-                    separate
-                    <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>
-                    parameters to specify these.
-                    This change is more in-line with how the other fetchers
-                    work for source control systems.
-                    Recipes that fetch from Perforce will need to be updated
-                    to use <filename>SRCREV</filename> in place of specifying
-                    the source revision within
-                    <filename>SRC_URI</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    Some of BitBake's internal code structures for accessing
-                    the recipe cache needed to be changed to support the new
-                    multi-configuration functionality.
-                    These changes will affect external tools that use BitBake's
-                    tinfoil module.
-                    For information on these changes, see the changes made to
-                    the scripts supplied with OpenEmbedded-Core:
-                    <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=189371f8393971d00bca0fceffd67cc07784f6ee'>1</ulink>
-                    and
-                    <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=4a5aa7ea4d07c2c90a1654b174873abb018acc67'>2</ulink>.
-                    </para></listitem>
-                <listitem><para>
-                    The task management code has been rewritten to avoid using
-                    ID indirection in order to improve performance.
-                    This change is unlikely to cause any problems for most
-                    users.
-                    However, the setscene verification function as pointed to
-                    by <filename>BB_SETSCENE_VERIFY_FUNCTION</filename>
-                    needed to change signature.
-                    Consequently, a new variable named
-                    <filename>BB_SETSCENE_VERIFY_FUNCTION2</filename>
-                    has been added allowing multiple versions of BitBake
-                    to work with suitably written metadata, which includes
-                    OpenEmbedded-Core and Poky.
-                    Anyone with custom BitBake task scheduler code might also
-                    need to update the code to handle the new structure.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.2-swabber-has-been-removed'>
-        <title>Swabber has Been Removed</title>
-
-        <para>
-            Swabber, a tool that was intended to detect host contamination in
-            the build process, has been removed, as it has been unmaintained
-            and unused for some time and was never particularly effective.
-            The OpenEmbedded build system has since incorporated a number of
-            mechanisms including enhanced QA checks that mean that there is
-            less of a need for such a tool.
-        </para>
-    </section>
-
-    <section id='migration-2.2-removed-recipes'>
-        <title>Removed Recipes</title>
-
-        <para>
-            The following recipes have been removed:
-            <itemizedlist>
-                <listitem><para>
-                    <filename>augeas</filename>:
-                    No longer needed and has been moved to
-                    <filename>meta-oe</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>directfb</filename>:
-                    Unmaintained and has been moved to
-                    <filename>meta-oe</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gcc</filename>:
-                    Removed 4.9 version.
-                    Versions 5.4 and 6.2 are still present.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gnome-doc-utils</filename>:
-                    No longer needed.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gtk-doc-stub</filename>:
-                    Replaced by <filename>gtk-doc</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gtk-engines</filename>:
-                    No longer needed and has been moved to
-                    <filename>meta-gnome</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gtk-sato-engine</filename>:
-                    Became obsolete.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libglade</filename>:
-                    No longer needed and has been moved to
-                    <filename>meta-oe</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libmad</filename>:
-                    Unmaintained and functionally replaced by
-                    <filename>libmpg123</filename>.
-                    <filename>libmad</filename> has been moved to
-                    <filename>meta-oe</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libowl</filename>:
-                    Became obsolete.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libxsettings-client</filename>:
-                    No longer needed.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>oh-puzzles</filename>:
-                    Functionally replaced by
-                    <filename>puzzles</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>oprofileui</filename>:
-                    Became obsolete.
-                    OProfile has been largely supplanted by perf.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>packagegroup-core-directfb.bb</filename>:
-                    Removed.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>core-image-directfb.bb</filename>:
-                    Removed.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>pointercal</filename>:
-                    No longer needed and has been moved to
-                    <filename>meta-oe</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>python-imaging</filename>:
-                    No longer needed and moved to
-                    <filename>meta-python</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>python-pyrex</filename>:
-                    No longer needed and moved to
-                    <filename>meta-python</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>sato-icon-theme</filename>:
-                    Became obsolete.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>swabber-native</filename>:
-                    Swabber has been removed.
-                    See the
-                    <link linkend='migration-2.2-swabber-has-been-removed'>entry on Swabber</link>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>tslib</filename>:
-                    No longer needed and has been moved to
-                    <filename>meta-oe</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>uclibc</filename>:
-                    Removed in favor of musl.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>xtscal</filename>:
-                    No longer needed and moved to
-                    <filename>meta-oe</filename>
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.2-removed-classes'>
-        <title>Removed Classes</title>
-
-        <para>
-            The following classes have been removed:
-            <itemizedlist>
-                <listitem><para>
-                    <filename>distutils-native-base</filename>:
-                    No longer needed.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>distutils3-native-base</filename>:
-                    No longer needed.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>sdl</filename>:
-                    Only set
-                    <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>
-                    and
-                    <link linkend='var-SECTION'><filename>SECTION</filename></link>,
-                    which are better set within the recipe instead.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>sip</filename>:
-                    Mostly unused.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>swabber</filename>:
-                    See the
-                    <link linkend='migration-2.2-swabber-has-been-removed'>entry on Swabber</link>.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.2-minor-packaging-changes'>
-        <title>Minor Packaging Changes</title>
-
-        <para>
-            The following minor packaging changes have occurred:
-            <itemizedlist>
-                <listitem><para>
-                    <filename>grub</filename>:
-                    Split <filename>grub-editenv</filename> into its own
-                    package.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>systemd</filename>:
-                    Split container and vm related units into a new package,
-                    systemd-container.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>util-linux</filename>:
-                    Moved <filename>prlimit</filename> to a separate
-                    <filename>util-linux-prlimit</filename> package.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.2-miscellaneous-changes'>
-        <title>Miscellaneous Changes</title>
-
-        <para>
-            The following miscellaneous changes have occurred:
-            <itemizedlist>
-                <listitem><para>
-                    <filename>package_regex.inc</filename>:
-                    Removed because the definitions
-                    <filename>package_regex.inc</filename> previously contained
-                    have been moved to their respective recipes.
-                    </para></listitem>
-                <listitem><para>
-                    Both <filename>devtool add</filename> and
-                    <filename>recipetool create</filename> now use a fixed
-                    <link linkend='var-SRCREV'><filename>SRCREV</filename></link>
-                    by default when fetching from a Git repository.
-                    You can override this in either case to use
-                    <filename>${</filename><link linkend='var-AUTOREV'><filename>AUTOREV</filename></link><filename>}</filename>
-                    instead by using the <filename>-a</filename> or
-                    <filename>&dash;&dash;autorev</filename> command-line
-                    option
-                    </para></listitem>
-                <listitem><para>
-                    <filename>distcc</filename>:
-                    GTK+ UI is now disabled by default.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>packagegroup-core-tools-testapps</filename>:
-                    Removed Piglit.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>image.bbclass</filename>:
-                    Renamed COMPRESS(ION) to CONVERSION.
-                    This change means that
-                    <filename>COMPRESSIONTYPES</filename>,
-                    <filename>COMPRESS_DEPENDS</filename> and
-                    <filename>COMPRESS_CMD</filename> are deprecated in favor
-                    of <filename>CONVERSIONTYPES</filename>,
-                    <filename>CONVERSION_DEPENDS</filename> and
-                    <filename>CONVERSION_CMD</filename>.
-                    The <filename>COMPRESS*</filename> variable names will
-                    still work in the 2.2 release but metadata that does not
-                    need to be backwards-compatible should be changed to
-                    use the new names as the <filename>COMPRESS*</filename>
-                    ones will be removed in a future release.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gtk-doc</filename>:
-                    A full version of <filename>gtk-doc</filename> is now
-                    made available.
-                    However, some old software might not be capable of using
-                    the current version of <filename>gtk-doc</filename>
-                    to build documentation.
-                    You need to change recipes that build such software so that
-                    they explicitly disable building documentation with
-                    <filename>gtk-doc</filename>.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='moving-to-the-yocto-project-2.3-release'>
-    <title>Moving to the Yocto Project 2.3 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 2.3 Release from the prior release.
-    </para>
-
-    <section id='migration-2.3-recipe-specific-sysroots'>
-        <title>Recipe-specific Sysroots</title>
-
-        <para>
-            The OpenEmbedded build system now uses one sysroot per
-            recipe to resolve long-standing issues with configuration
-            script auto-detection of undeclared dependencies.
-            Consequently, you might find that some of your previously
-            written custom recipes are missing declared dependencies,
-            particularly those dependencies that are incidentally built
-            earlier in a typical build process and thus are already likely
-            to be present in the shared sysroot in previous releases.
-        </para>
-
-        <para>
-            Consider the following:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis>Declare Build-Time Dependencies:</emphasis>
-                    Because of this new feature, you must explicitly
-                    declare all build-time dependencies for your recipe.
-                    If you do not declare these dependencies, they are not
-                    populated into the sysroot for the recipe.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Specify Pre-Installation and Post-Installation
-                    Native Tool Dependencies:</emphasis>
-                    You must specifically specify any special native tool
-                    dependencies of <filename>pkg_preinst</filename> and
-                    <filename>pkg_postinst</filename> scripts by using the
-                    <link linkend='var-PACKAGE_WRITE_DEPS'><filename>PACKAGE_WRITE_DEPS</filename></link>
-                    variable.
-                    Specifying these dependencies ensures that these tools
-                    are available if these scripts need to be run on the
-                    build host during the
-                    <link linkend='ref-tasks-rootfs'><filename>do_rootfs</filename></link>
-                    task.</para>
-
-                    <para>As an example, see the <filename>dbus</filename>
-                    recipe.
-                    You will see that this recipe has a
-                    <filename>pkg_postinst</filename> that calls
-                    <filename>systemctl</filename> if "systemd" is in
-                    <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>.
-                    In the example,
-                    <filename>systemd-systemctl-native</filename> is added to
-                    <filename>PACKAGE_WRITE_DEPS</filename>, which is also
-                    conditional on "systemd" being in
-                    <filename>DISTRO_FEATURES</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Examine Recipes that Use
-                    <filename>SSTATEPOSTINSTFUNCS</filename>:</emphasis>
-                    You need to examine any recipe that uses
-                    <filename>SSTATEPOSTINSTFUNCS</filename> and determine
-                    steps to take.</para>
-
-                    <para>Functions added to
-                    <filename>SSTATEPOSTINSTFUNCS</filename> are still
-                    called as they were in previous Yocto Project releases.
-                    However, since a separate sysroot is now being populated
-                    for every recipe and if existing functions being called
-                    through <filename>SSTATEPOSTINSTFUNCS</filename> are
-                    doing relocation, then you will need to change these
-                    to use a post-installation script that is installed by a
-                    function added to
-                    <link linkend='var-SYSROOT_PREPROCESS_FUNCS'><filename>SYSROOT_PREPROCESS_FUNCS</filename></link>.
-                    </para>
-
-                    <para>For an example, see the
-                    <filename>pixbufcache</filename> class in
-                    <filename>meta/classes/</filename> in the Yocto Project
-                    <ulink url='&YOCTO_DOCS_OM_URL;#source-repositories'>Source Repositories</ulink>.
-                    <note>
-                        The <filename>SSTATEPOSTINSTFUNCS</filename> variable
-                        itself is now deprecated in favor of the
-                        <filename>do_populate_sysroot[postfuncs]</filename>
-                        task.
-                        Consequently, if you do still have any function or
-                        functions that need to be called after the sysroot
-                        component is created for a recipe, then you would be
-                        well advised to take steps to use a post installation
-                        script as described previously.
-                        Taking these steps prepares your code for when
-                        <filename>SSTATEPOSTINSTFUNCS</filename> is
-                        removed in a future Yocto Project release.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Specify the Sysroot when Using Certain
-                    External Scripts:</emphasis>
-                    Because the shared sysroot is now gone, the scripts
-                    <filename>oe-find-native-sysroot</filename> and
-                    <filename>oe-run-native</filename> have been changed such
-                    that you need to specify which recipe's
-                    <link linkend='var-STAGING_DIR_NATIVE'><filename>STAGING_DIR_NATIVE</filename></link>
-                    is used.
-                    </para></listitem>
-            </itemizedlist>
-            <note>
-                You can find more information on how recipe-specific sysroots
-                work in the
-                "<link linkend='ref-classes-staging'><filename>staging.bbclass</filename></link>"
-                section.
-            </note>
-        </para>
-    </section>
-
-    <section id='migration-2.3-path-variable'>
-        <title><filename>PATH</filename> Variable</title>
-
-        <para>
-            Within the environment used to run build tasks, the environment
-            variable <filename>PATH</filename> is now sanitized such that
-            the normal native binary paths
-            (<filename>/bin</filename>, <filename>/sbin</filename>,
-            <filename>/usr/bin</filename> and so forth) are
-            removed and a directory containing symbolic links linking only
-            to the binaries from the host mentioned in the
-            <link linkend='var-HOSTTOOLS'><filename>HOSTTOOLS</filename></link>
-            and
-            <link linkend='var-HOSTTOOLS_NONFATAL'><filename>HOSTTOOLS_NONFATAL</filename></link>
-            variables is added to <filename>PATH</filename>.
-        </para>
-
-        <para>
-            Consequently, any native binaries provided by the host that you
-            need to call needs to be in one of these two variables at
-            the configuration level.
-        </para>
-
-        <para>
-            Alternatively, you can add a native recipe (i.e.
-            <filename>-native</filename>) that provides the
-            binary to the recipe's
-            <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>
-            value.
-            <note>
-                <filename>PATH</filename> is not sanitized in the same way
-                within <filename>devshell</filename>.
-                If it were, you would have difficulty running host tools for
-                development and debugging within the shell.
-            </note>
-        </para>
-    </section>
-
-    <section id='migration-2.3-scripts'>
-        <title>Changes to Scripts</title>
-
-        <para>
-            The following changes to scripts took place:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>oe-find-native-sysroot</filename>:</emphasis>
-                    The usage for the
-                    <filename>oe-find-native-sysroot</filename> script has
-                    changed to the following:
-                    <literallayout class='monospaced'>
-     $ . oe-find-native-sysroot <replaceable>recipe</replaceable>
-                    </literallayout>
-                    You must now supply a recipe for
-                    <replaceable>recipe</replaceable> as part of the command.
-                    Prior to the Yocto Project &DISTRO; release, it was not
-                    necessary to provide the script with the command.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>oe-run-native</filename>:</emphasis>
-                    The usage for the
-                    <filename>oe-run-native</filename> script has changed
-                    to the following:
-                    <literallayout class='monospaced'>
-     $ oe-run-native <replaceable>native_recipe</replaceable> <replaceable>tool</replaceable>
-                    </literallayout>
-                    You must supply the name of the native recipe and the tool
-                    you want to run as part of the command.
-                    Prior to the Yocto Project &DISTRO; release, it was not
-                    necessary to provide the native recipe with the command.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>cleanup-workdir</filename>:</emphasis>
-                    The <filename>cleanup-workdir</filename> script has been
-                    removed because the script was found to be deleting
-                    files it should not have, which lead to broken build
-                    trees.
-                    Rather than trying to delete portions of
-                    <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>
-                    and getting it wrong, it is recommended that you
-                    delete <filename>TMPDIR</filename> and have it restored
-                    from shared state (sstate) on subsequent builds.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>wipe-sysroot</filename>:</emphasis>
-                    The <filename>wipe-sysroot</filename> script has been
-                    removed as it is no longer needed with recipe-specific
-                    sysroots.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.3-functions'>
-        <title>Changes to Functions</title>
-
-        <para>
-            The previously deprecated
-            <filename>bb.data.getVar()</filename>,
-            <filename>bb.data.setVar()</filename>, and
-            related functions have been removed in favor of
-            <filename>d.getVar()</filename>,
-            <filename>d.setVar()</filename>, and so forth.
-        </para>
-
-        <para>
-            You need to fix any references to these old functions.
-        </para>
-    </section>
-
-    <section id='migration-2.3-bitbake-changes'>
-        <title>BitBake Changes</title>
-
-        <para>
-            The following changes took place for BitBake:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis>BitBake's Graphical Dependency Explorer UI Replaced:</emphasis>
-                    BitBake's graphical dependency explorer UI
-                    <filename>depexp</filename> was replaced by
-                    <filename>taskexp</filename> ("Task Explorer"), which
-                    provides a graphical way of exploring the
-                    <filename>task-depends.dot</filename> file.
-                    The data presented by Task Explorer is much more
-                    accurate than the data that was presented by
-                    <filename>depexp</filename>.
-                    Being able to visualize the data is an often requested
-                    feature as standard <filename>*.dot</filename> file
-                    viewers cannot usual cope with the size of
-                    the <filename>task-depends.dot</filename> file.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>BitBake "-g" Output Changes:</emphasis>
-                    The <filename>package-depends.dot</filename> and
-                    <filename>pn-depends.dot</filename> files as previously
-                    generated using the <filename>bitbake -g</filename> command
-                    have been removed.
-                    A <filename>recipe-depends.dot</filename> file
-                    is now generated as a collapsed version of
-                    <filename>task-depends.dot</filename> instead.
-                    </para>
-
-                    <para>The reason for this change is because
-                    <filename>package-depends.dot</filename> and
-                    <filename>pn-depends.dot</filename> largely date back
-                    to a time before task-based execution and do not take
-                    into account task-level dependencies between recipes,
-                    which could be misleading.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Mirror Variable Splitting Changes:</emphasis>
-                    Mirror variables including
-                    <link linkend='var-MIRRORS'><filename>MIRRORS</filename></link>,
-                    <link linkend='var-PREMIRRORS'><filename>PREMIRRORS</filename></link>,
-                    and
-                    <link linkend='var-SSTATE_MIRRORS'><filename>SSTATE_MIRRORS</filename></link>
-                    can now separate values entirely with spaces.
-                    Consequently, you no longer need "\\n".
-                    BitBake looks for pairs of values, which simplifies usage.
-                    There should be no change required to existing mirror
-                    variable values themselves.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>The Subversion (SVN) Fetcher Uses an "ssh" Parameter and Not an "rsh" Parameter:</emphasis>
-                    The SVN fetcher now takes an "ssh" parameter instead of an
-                    "rsh" parameter.
-                    This new optional parameter is used when the "protocol"
-                    parameter is set to "svn+ssh".
-                    You can only use the new parameter to specify the
-                    <filename>ssh</filename> program used by SVN.
-                    The SVN fetcher passes the new parameter through the
-                    <filename>SVN_SSH</filename> environment variable during
-                    the
-                    <link linkend='ref-tasks-fetch'><filename>do_fetch</filename></link>
-                    task.</para>
-
-                    <para>See the
-                    "<ulink url='&YOCTO_DOCS_BB_URL;#svn-fetcher'>Subversion (SVN) Fetcher (svn://)</ulink>"
-                    section in the BitBake User Manual for additional
-                    information.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>BB_SETSCENE_VERIFY_FUNCTION</filename>
-                    and <filename>BB_SETSCENE_VERIFY_FUNCTION2</filename>
-                    Removed:</emphasis>
-                    Because the mechanism they were part of is no longer
-                    necessary with recipe-specific sysroots, the
-                    <filename>BB_SETSCENE_VERIFY_FUNCTION</filename> and
-                    <filename>BB_SETSCENE_VERIFY_FUNCTION2</filename>
-                    variables have been removed.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.3-absolute-symlinks'>
-        <title>Absolute Symbolic Links</title>
-
-        <para>
-            Absolute symbolic links (symlinks) within staged files are no
-            longer permitted and now trigger an error.
-            Any explicit creation of symlinks can use the
-            <filename>lnr</filename> script, which is a replacement for
-            <filename>ln -r</filename>.
-        </para>
-
-        <para>
-            If the build scripts in the software that the recipe is building
-            are creating a number of absolute symlinks that need to be
-            corrected, you can inherit
-            <filename>relative_symlinks</filename> within the recipe to turn
-            those absolute symlinks into relative symlinks.
-        </para>
-    </section>
-
-    <section id='migration-2.3-gplv2-and-gplv3-moves'>
-        <title>GPLv2 Versions of GPLv3 Recipes Moved</title>
-
-        <para>
-            Older GPLv2 versions of GPLv3 recipes have moved to a
-            separate <filename>meta-gplv2</filename> layer.
-        </para>
-
-        <para>
-            If you use
-            <link linkend='var-INCOMPATIBLE_LICENSE'><filename>INCOMPATIBLE_LICENSE</filename></link>
-            to exclude GPLv3 or set
-            <link linkend='var-PREFERRED_VERSION'><filename>PREFERRED_VERSION</filename></link>
-            to substitute a GPLv2 version of a GPLv3 recipe, then you must add
-            the <filename>meta-gplv2</filename> layer to your configuration.
-            <note>
-                You can find <filename>meta-gplv2</filename> layer in the
-                OpenEmbedded layer index at
-                <ulink url='https://layers.openembedded.org/layerindex/branch/master/layer/meta-gplv2/'></ulink>.
-            </note>
-        </para>
-
-        <para>
-            These relocated GPLv2 recipes do not receive the same level of
-            maintenance as other core recipes.
-            The recipes do not get security fixes and upstream no longer
-            maintains them.
-            In fact, the upstream community is actively hostile towards people
-            that use the old versions of the recipes.
-            Moving these recipes into a separate layer both makes the different
-            needs of the recipes clearer and clearly identifies the number of
-            these recipes.
-            <note>
-                The long-term solution might be to move to BSD-licensed
-                replacements of the GPLv3 components for those that need to
-                exclude GPLv3-licensed components from the target system.
-                This solution will be investigated for future Yocto
-                Project releases.
-            </note>
-        </para>
-    </section>
-
-    <section id='migration-2.3-package-management-changes'>
-        <title>Package Management Changes</title>
-
-        <para>
-            The following package management changes took place:
-            <itemizedlist>
-                <listitem><para>
-                    Smart package manager is replaced by DNF package manager.
-                    Smart has become unmaintained upstream, is not ported
-                    to Python 3.x.
-                    Consequently, Smart needed to be replaced.
-                    DNF is the only feasible candidate.</para>
-                    <para>The change in functionality is that the on-target
-                    runtime package management from remote package feeds is
-                    now done with a different tool that has a
-                    different set of command-line options.
-                    If you have scripts that call the
-                    tool directly, or use its API, they need to be fixed.</para>
-                    <para>For more information, see the
-                    <ulink url='http://dnf.readthedocs.io/en/latest/'>DNF Documentation</ulink>.
-                    </para></listitem>
-                <listitem><para>
-                    Rpm 5.x is replaced with Rpm 4.x.
-                    This is done for two major reasons:
-                    <itemizedlist>
-                        <listitem><para>
-                            DNF is API-incompatible with Rpm 5.x and porting
-                            it and maintaining the port is non-trivial.
-                            </para></listitem>
-                        <listitem><para>
-                            Rpm 5.x itself has limited maintenance upstream,
-                            and the Yocto Project is one of the very few
-                            remaining users.
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    Berkeley DB 6.x is removed and Berkeley DB 5.x becomes
-                    the default:
-                    <itemizedlist>
-                        <listitem><para>
-                            Version 6.x of Berkeley DB has largely been
-                            rejected by the open source community due to its
-                            AGPLv3 license.
-                            As a result, most mainstream open source projects
-                            that require DB are still developed and tested with
-                            DB 5.x.
-                            </para></listitem>
-                        <listitem><para>
-                            In OE-core, the only thing that was requiring
-                            DB 6.x was Rpm 5.x.
-                            Thus, no reason exists to continue carrying DB 6.x
-                            in OE-core.
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>createrepo</filename> is replaced with
-                    <filename>createrepo_c</filename>.</para>
-                    <para><filename>createrepo_c</filename> is the current
-                    incarnation of the tool that generates remote repository
-                    metadata.
-                    It is written in C as compared to
-                    <filename>createrepo</filename>, which is written in
-                    Python.
-                    <filename>createrepo_c</filename> is faster and is
-                    maintained.
-                    </para></listitem>
-                <listitem><para>
-                    Architecture-independent RPM packages are "noarch"
-                    instead of "all".</para>
-                    <para>This change was made because too many places in
-                    DNF/RPM4 stack already make that assumption.
-                    Only the filenames and the architecture tag has changed.
-                    Nothing else has changed in OE-core system, particularly
-                    in the
-                    <link linkend='ref-classes-allarch'><filename>allarch.bbclass</filename></link>
-                    class.
-                    </para></listitem>
-                <listitem><para>
-                    Signing of remote package feeds using
-                    <filename>PACKAGE_FEED_SIGN</filename>
-                    is not currently supported.
-                    This issue will be fully addressed in a future
-                    Yocto Project release.
-                    See <ulink url='https://bugzilla.yoctoproject.org/show_bug.cgi?id=11209'>defect 11209</ulink>
-                    for more information on a solution to package feed
-                    signing with RPM in the Yocto Project 2.3 release.
-                    </para></listitem>
-                <listitem><para>
-                    OPKG now uses the libsolv backend for resolving package
-                    dependencies by default.
-                    This is vastly superior to OPKG's internal ad-hoc solver
-                    that was previously used.
-                    This change does have a small impact on disk (around
-                    500 KB) and memory footprint.
-                    <note>
-                        For further details on this change, see the
-                        <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?
-id=f4d4f99cfbc2396e49c1613a7d237b9e57f06f81'>commit message</ulink>.
-                    </note>
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.3-removed-recipes'>
-        <title>Removed Recipes</title>
-
-        <para>
-            The following recipes have been removed:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>linux-yocto 4.8:</filename></emphasis>
-                    Version 4.8 has been removed.
-                    Versions 4.1 (LTSI), 4.4 (LTS), 4.9 (LTS/LTSI) and 4.10
-                    are now present.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>python-smartpm:</filename></emphasis>
-                    Functionally replaced by <filename>dnf</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>createrepo:</filename></emphasis>
-                    Replaced by the <filename>createrepo-c</filename> recipe.
-                    </para></listitem>
-                 <listitem><para>
-                    <emphasis><filename>rpmresolve:</filename></emphasis>
-                    No longer needed with the move to RPM 4 as RPM itself is
-                    used instead.
-                    </para></listitem>
-                 <listitem><para>
-                    <emphasis><filename>gstreamer:</filename></emphasis>
-                    Removed the GStreamer Git version recipes as they have
-                    been stale.
-                    <filename>1.10.</filename><replaceable>x</replaceable>
-                    recipes are still present.
-                    </para></listitem>
-                 <listitem><para>
-                    <emphasis><filename>alsa-conf-base:</filename></emphasis>
-                    Merged into <filename>alsa-conf</filename> since
-                    <filename>libasound</filename> depended on both.
-                    Essentially, no way existed to install only one of these.
-                    </para></listitem>
-                 <listitem><para>
-                    <emphasis><filename>tremor:</filename></emphasis>
-                    Moved to <filename>meta-multimedia</filename>.
-                    Fixed-integer Vorbis decoding is not
-                    needed by current hardware.
-                    Thus, GStreamer's ivorbis plugin has been disabled
-                    by default eliminating the need for the
-                    <filename>tremor</filename> recipe in
-                    <link linkend='oe-core'>OE-Core</link>.
-                    </para></listitem>
-                 <listitem><para>
-                    <emphasis><filename>gummiboot:</filename></emphasis>
-                    Replaced by <filename>systemd-boot</filename>.
-                    </para></listitem>
-           </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.3-wic-changes'>
-        <title>Wic Changes</title>
-
-        <para>
-            The following changes have been made to Wic:
-            <note>
-                For more information on Wic, see the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-partitioned-images-using-wic'>Creating Partitioned Images Using Wic</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-            </note>
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis>Default Output Directory Changed:</emphasis>
-                    Wic's default output directory is now the current directory
-                    by default instead of the unusual
-                    <filename>/var/tmp/wic</filename>.</para>
-
-                    <para>The "-o" and "--outdir" options remain unchanged
-                    and are used to specify your preferred output directory
-                    if you do not want to use the default directory.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>fsimage Plug-in Removed:</emphasis>
-                    The Wic fsimage plugin has been removed as it duplicates
-                    functionality of the rawcopy plugin.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.3-qa-changes'>
-        <title>QA Changes</title>
-
-        <para>
-            The following QA checks have changed:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>unsafe-references-in-binaries</filename>:</emphasis>
-                    The <filename>unsafe-references-in-binaries</filename>
-                    QA check, which was disabled by default, has now been
-                    removed.
-                    This check was intended to detect binaries in
-                    <filename>/bin</filename> that link to libraries in
-                    <filename>/usr/lib</filename> and have the case where
-                    the user has <filename>/usr</filename> on a separate
-                    filesystem to <filename>/</filename>.</para>
-
-                    <para>The removed QA check was buggy.
-                    Additionally, <filename>/usr</filename> residing on a
-                    separate partition from <filename>/</filename> is now
-                    a rare configuration.
-                    Consequently,
-                    <filename>unsafe-references-in-binaries</filename> was
-                    removed.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>file-rdeps</filename>:</emphasis>
-                    The <filename>file-rdeps</filename> QA check is now an
-                    error by default instead of a warning.
-                    Because it is an error instead of a warning, you need to
-                    address missing runtime dependencies.</para>
-
-                    <para>For additional information, see the
-                    <link linkend='ref-classes-insane'><filename>insane</filename></link>
-                    class and the
-                    "<link linkend='qa-errors-and-warnings'>Errors and Warnings</link>"
-                    section.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.3-miscellaneous-changes'>
-        <title>Miscellaneous Changes</title>
-
-        <para>
-            The following miscellaneous changes have occurred:
-            <itemizedlist>
-                <listitem><para>
-                    In this release, a number of recipes have been changed to
-                    ignore the <filename>largefile</filename>
-                    <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>
-                    item, enabling large file support unconditionally.
-                    This feature has always been enabled by default.
-                    Disabling the feature has not been widely tested.
-                    <note>
-                        Future releases of the Yocto Project will remove
-                        entirely the ability to disable the
-                        <filename>largefile</filename> feature,
-                        which would make it unconditionally enabled everywhere.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    If the
-                    <link linkend='var-DISTRO_VERSION'><filename>DISTRO_VERSION</filename></link>
-                    value contains the value of the
-                    <link linkend='var-DATE'><filename>DATE</filename></link>
-                    variable, which is the default between Poky releases,
-                    the <filename>DATE</filename> value is explicitly excluded
-                    from <filename>/etc/issue</filename> and
-                    <filename>/etc/issue.net</filename>, which is displayed at
-                    the login prompt, in order to avoid conflicts with
-                    Multilib enabled.
-                    Regardless, the <filename>DATE</filename> value is
-                    inaccurate if the <filename>base-files</filename>
-                    recipe is restored from shared state (sstate) rather
-                    than rebuilt.</para>
-
-                    <para>If you need the build date recorded in
-                    <filename>/etc/issue*</filename> or anywhere else in your
-                    image, a better method is to define a post-processing
-                    function to do it and have the function called from
-                    <link linkend='var-ROOTFS_POSTPROCESS_COMMAND'><filename>ROOTFS_POSTPROCESS_COMMAND</filename></link>.
-                    Doing so ensures the value is always up-to-date with the
-                    created image.
-                    </para></listitem>
-                <listitem><para>
-                    Dropbear's <filename>init</filename> script now disables
-                    DSA host keys by default.
-                    This change is in line with the systemd service
-                    file, which supports RSA keys only, and with recent
-                    versions of OpenSSH, which deprecates DSA host keys.
-                    </para></listitem>
-                <listitem><para>
-                    The
-                    <link linkend='ref-classes-buildhistory'><filename>buildhistory</filename></link>
-                    class now correctly uses tabs as separators between all
-                    columns in <filename>installed-package-sizes.txt</filename>
-                    in order to aid import into other tools.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>USE_LDCONFIG</filename> variable has been
-                    replaced with the "ldconfig"
-                    <filename>DISTRO_FEATURES</filename> feature.
-                    Distributions that previously set:
-                    <literallayout class='monospaced'>
-     USE_LDCONFIG = "0"
-                    </literallayout>
-                    should now instead use the following:
-                    <literallayout class='monospaced'>
-     DISTRO_FEATURES_BACKFILL_CONSIDERED_append = " ldconfig"
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    The default value of
-                    <link linkend='var-COPYLEFT_LICENSE_INCLUDE'><filename>COPYLEFT_LICENSE_INCLUDE</filename></link>
-                    now includes all versions of AGPL licenses in addition
-                    to GPL and LGPL.
-                    <note>
-                        The default list is not intended to be guaranteed
-                        as a complete safe list.
-                        You should seek legal advice based on what you are
-                        distributing if you are unsure.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    Kernel module packages are now suffixed with the kernel
-                    version in order to allow module packages from multiple
-                    kernel versions to co-exist on a target system.
-                    If you wish to return to the previous naming scheme
-                    that does not include the version suffix, use the
-                    following:
-                    <literallayout class='monospaced'>
-     KERNEL_MODULE_PACKAGE_SUFFIX to ""
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    Removal of <filename>libtool</filename>
-                    <filename>*.la</filename> files is now enabled by default.
-                    The <filename>*.la</filename> files are not actually
-                    needed on Linux and relocating them is an unnecessary
-                    burden.</para>
-
-                    <para>If you need to preserve these
-                    <filename>.la</filename> files (e.g. in a custom
-                    distribution), you must change
-                    <link linkend='var-INHERIT_DISTRO'><filename>INHERIT_DISTRO</filename></link>
-                    such that "remove-libtool" is not included in the value.
-                    </para></listitem>
-                <listitem><para>
-                    Extensible SDKs built for GCC 5+ now refuse to install on a
-                    distribution where the host GCC version is 4.8 or 4.9.
-                    This change resulted from the fact that the installation
-                    is known to fail due to the way the
-                    <filename>uninative</filename> shared state (sstate)
-                    package is built.
-                    See the
-                    <link linkend='ref-classes-uninative'><filename>uninative</filename></link>
-                    class for additional information.
-                    </para></listitem>
-                <listitem><para>
-                    All native and nativesdk recipes now use a separate
-                    <filename>DISTRO_FEATURES</filename> value instead of
-                    sharing the value used by recipes for the target, in order
-                    to avoid unnecessary rebuilds.</para>
-
-                    <para>The <filename>DISTRO_FEATURES</filename> for
-                    <filename>native</filename> recipes is
-                    <link linkend='var-DISTRO_FEATURES_NATIVE'><filename>DISTRO_FEATURES_NATIVE</filename></link>
-                    added to an intersection of
-                    <filename>DISTRO_FEATURES</filename> and
-                    <link linkend='var-DISTRO_FEATURES_FILTER_NATIVE'><filename>DISTRO_FEATURES_FILTER_NATIVE</filename></link>.
-                    </para>
-
-                    <para>For nativesdk recipes, the
-                    corresponding variables are
-                    <link linkend='var-DISTRO_FEATURES_NATIVESDK'><filename>DISTRO_FEATURES_NATIVESDK</filename></link>
-                    and
-                    <link linkend='var-DISTRO_FEATURES_FILTER_NATIVESDK'><filename>DISTRO_FEATURES_FILTER_NATIVESDK</filename></link>.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>FILESDIR</filename>
-                    variable, which was previously deprecated and rarely used,
-                    has now been removed.
-                    You should change any recipes that set
-                    <filename>FILESDIR</filename> to set
-                    <link linkend='var-FILESPATH'><filename>FILESPATH</filename></link>
-                    instead.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>MULTIMACH_HOST_SYS</filename>
-                    variable has been removed as it is no longer needed
-                    with recipe-specific sysroots.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='moving-to-the-yocto-project-2.4-release'>
-    <title>Moving to the Yocto Project 2.4 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 2.4 Release from the prior release.
-    </para>
-
-    <section id='migration-2.4-memory-resident-mode'>
-        <title>Memory Resident Mode</title>
-
-        <para>
-            A persistent mode is now available in BitBake's default operation,
-            replacing its previous "memory resident mode" (i.e.
-            <filename>oe-init-build-env-memres</filename>).
-            Now you only need to set
-            <link linkend='var-BB_SERVER_TIMEOUT'><filename>BB_SERVER_TIMEOUT</filename></link>
-            to a timeout (in seconds) and BitBake's server stays resident for
-            that amount of time between invocations.
-            The <filename>oe-init-build-env-memres</filename> script has been
-            removed since a separate environment setup script is no longer
-            needed.
-        </para>
-    </section>
-
-    <section id='migration-2.4-packaging-changes'>
-        <title>Packaging Changes</title>
-
-        <para>
-            This section provides information about packaging changes that have
-            occurred:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>python3</filename> Changes:</emphasis>
-                    <itemizedlist>
-                        <listitem><para>
-                            The main "python3" package now brings in all of the
-                            standard Python 3 distribution rather than a subset.
-                            This behavior matches what is expected based on
-                            traditional Linux distributions.
-                            If you wish to install a subset of Python 3, specify
-                            <filename>python-core</filename> plus one or more of
-                            the individual packages that are still produced.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis><filename>python3</filename>:</emphasis>
-                            The <filename>bz2.py</filename>,
-                            <filename>lzma.py</filename>, and
-                            <filename>_compression.py</filename> scripts have
-                            been moved from the
-                            <filename>python3-misc</filename> package to
-                            the <filename>python3-compression</filename> package.
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>binutils</filename>:</emphasis>
-                    The <filename>libbfd</filename> library is now packaged in
-                    a separate "libbfd" package.
-                    This packaging saves space when certain tools
-                    (e.g. <filename>perf</filename>) are installed.
-                    In such cases, the tools only need
-                    <filename>libbfd</filename> rather than all the packages in
-                    <filename>binutils</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>util-linux</filename> Changes:</emphasis>
-                    <itemizedlist>
-                        <listitem><para>
-                            The <filename>su</filename> program is now packaged
-                            in a separate "util-linux-su" package, which is only
-                            built when "pam" is listed in the
-                            <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>
-                            variable.
-                            <filename>util-linux</filename> should not be
-                            installed unless it is needed because
-                            <filename>su</filename> is normally provided through
-                            the shadow file format.
-                            The main <filename>util-linux</filename> package has
-                            runtime dependencies (i.e.
-                            <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>)
-                            on the <filename>util-linux-su</filename> package
-                            when "pam" is in
-                            <filename>DISTRO_FEATURES</filename>.
-                            </para></listitem>
-                        <listitem><para>
-                            The <filename>switch_root</filename> program is now
-                            packaged in a separate "util-linux-switch-root"
-                            package for small initramfs images that do not need
-                            the whole <filename>util-linux</filename> package or
-                            the busybox binary, which are both much larger than
-                            <filename>switch_root</filename>.
-                            The main <filename>util-linux</filename> package has
-                            a recommended runtime dependency (i.e.
-                            <link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link>)
-                            on the <filename>util-linux-switch-root</filename> package.
-                            </para></listitem>
-                        <listitem><para>
-                            The <filename>ionice</filename> program is now
-                            packaged in a separate "util-linux-ionice" package.
-                            The main <filename>util-linux</filename> package has
-                            a recommended runtime dependency (i.e.
-                            <filename>RRECOMMENDS</filename>)
-                            on the <filename>util-linux-ionice</filename> package.
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>initscripts</filename>:</emphasis>
-                    The <filename>sushell</filename> program is now packaged in
-                    a separate "initscripts-sushell" package.
-                    This packaging change allows systems to pull
-                    <filename>sushell</filename> in when
-                    <filename>selinux</filename> is enabled.
-                    The change also eliminates needing to pull in the entire
-                    <filename>initscripts</filename> package.
-                    The main <filename>initscripts</filename> package has a
-                    runtime dependency (i.e. <filename>RDEPENDS</filename>)
-                    on the <filename>sushell</filename> package when
-                    "selinux" is in <filename>DISTRO_FEATURES</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>glib-2.0</filename>:</emphasis>
-                    The <filename>glib-2.0</filename> package now has a
-                    recommended runtime dependency (i.e.
-                    <filename>RRECOMMENDS</filename>) on the
-                    <filename>shared-mime-info</filename> package, since large
-                    portions of GIO are not useful without the MIME database.
-                    You can remove the dependency by using the
-                    <link linkend='var-BAD_RECOMMENDATIONS'><filename>BAD_RECOMMENDATIONS</filename></link>
-                    variable if <filename>shared-mime-info</filename> is too
-                    large and is not required.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Go Standard Runtime:</emphasis>
-                    The Go standard runtime has been split out from the main
-                    <filename>go</filename> recipe into a separate
-                    <filename>go-runtime</filename> recipe.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.4-removed-recipes'>
-        <title>Removed Recipes</title>
-
-        <para>
-            The following recipes have been removed:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>acpitests</filename>:</emphasis>
-                    This recipe is not maintained.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>autogen-native</filename>:</emphasis>
-                    No longer required by Grub, oe-core, or meta-oe.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>bdwgc</filename>:</emphasis>
-                    Nothing in OpenEmbedded-Core requires this recipe.
-                    It has moved to meta-oe.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>byacc</filename>:</emphasis>
-                    This recipe was only needed by rpm 5.x and has moved to
-                    meta-oe.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>gcc (5.4)</filename>:</emphasis>
-                    The 5.4 series dropped the recipe in favor of 6.3 / 7.2.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>gnome-common</filename>:</emphasis>
-                    Deprecated upstream and no longer needed.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>go-bootstrap-native</filename>:</emphasis>
-                    Go 1.9 does its own bootstrapping so this recipe has been
-                    removed.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>guile</filename>:</emphasis>
-                    This recipe was only needed by
-                    <filename>autogen-native</filename> and
-                    <filename>remake</filename>.
-                    The recipe is no longer needed by either of these programs.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>libclass-isa-perl</filename>:</emphasis>
-                    This recipe was previously needed for LSB 4, no longer
-                    needed.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>libdumpvalue-perl</filename>:</emphasis>
-                    This recipe was previously needed for LSB 4, no longer
-                    needed.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>libenv-perl</filename>:</emphasis>
-                    This recipe was previously needed for LSB 4, no longer
-                    needed.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>libfile-checktree-perl</filename>:</emphasis>
-                    This recipe was previously needed for LSB 4, no longer
-                    needed.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>libi18n-collate-perl</filename>:</emphasis>
-                    This recipe was previously needed for LSB 4, no longer
-                    needed.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>libiconv</filename>:</emphasis>
-                    This recipe was only needed for <filename>uclibc</filename>,
-                    which was removed in the previous release.
-                    <filename>glibc</filename> and <filename>musl</filename>
-                    have their own implementations.
-                    <filename>meta-mingw</filename> still needs
-                    <filename>libiconv</filename>, so it has
-                    been moved to <filename>meta-mingw</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>libpng12</filename>:</emphasis>
-                    This recipe was previously needed for LSB. The current
-                    <filename>libpng</filename> is 1.6.x.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>libpod-plainer-perl</filename>:</emphasis>
-                    This recipe was previously needed for LSB 4, no longer
-                    needed.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>linux-yocto (4.1)</filename>:</emphasis>
-                    This recipe was removed in favor of 4.4, 4.9, 4.10 and 4.12.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>mailx</filename>:</emphasis>
-                    This recipe was previously only needed for LSB
-                    compatibility, and upstream is defunct.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>mesa (git version only)</filename>:</emphasis>
-                    The git version recipe was stale with respect to the release
-                    version.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>ofono (git version only)</filename>:</emphasis>
-                    The git version recipe was stale with respect to the release
-                    version.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>portmap</filename>:</emphasis>
-                    This recipe is obsolete and is superseded by
-                    <filename>rpcbind</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>python3-pygpgme</filename>:</emphasis>
-                    This recipe is old and unmaintained. It was previously
-                    required by <filename>dnf</filename>, which has switched
-                    to official <filename>gpgme</filename> Python bindings.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>python-async</filename>:</emphasis>
-                    This recipe has been removed in favor of the Python 3
-                    version.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>python-gitdb</filename>:</emphasis>
-                    This recipe has been removed in favor of the Python 3
-                    version.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>python-git</filename>:</emphasis>
-                    This recipe was removed in favor of the Python 3
-                    version.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>python-mako</filename>:</emphasis>
-                    This recipe was removed in favor of the Python 3
-                    version.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>python-pexpect</filename>:</emphasis>
-                    This recipe was removed in favor of the Python 3 version.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>python-ptyprocess</filename>:</emphasis>
-                    This recipe was removed in favor of Python the 3 version.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>python-pycurl</filename>:</emphasis>
-                    Nothing is using this recipe in OpenEmbedded-Core
-                    (i.e. <filename>meta-oe</filename>).
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>python-six</filename>:</emphasis>
-                    This recipe was removed in favor of the Python 3 version.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>python-smmap</filename>:</emphasis>
-                    This recipe was removed in favor of the Python 3 version.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>remake</filename>:</emphasis>
-                    Using <filename>remake</filename> as the provider of
-                    <filename>virtual/make</filename> is broken.
-                    Consequently, this recipe is not needed in OpenEmbedded-Core.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.4-kernel-device-tree-move'>
-        <title>Kernel Device Tree Move</title>
-
-        <para>
-            Kernel Device Tree support is now easier to enable in a kernel
-            recipe.
-            The Device Tree code has moved to a
-            <link linkend='ref-classes-kernel-devicetree'><filename>kernel-devicetree</filename></link>
-            class.
-            Functionality is automatically enabled for any recipe that inherits
-            the
-            <link linkend='ref-classes-kernel'><filename>kernel</filename></link>
-            class and sets the
-            <link linkend='var-KERNEL_DEVICETREE'><filename>KERNEL_DEVICETREE</filename></link>
-            variable.
-            The previous mechanism for doing this,
-            <filename>meta/recipes-kernel/linux/linux-dtb.inc</filename>,
-            is still available to avoid breakage, but triggers a
-            deprecation warning.
-            Future releases of the Yocto Project will remove
-            <filename>meta/recipes-kernel/linux/linux-dtb.inc</filename>.
-            It is advisable to remove any <filename>require</filename>
-            statements that request
-            <filename>meta/recipes-kernel/linux/linux-dtb.inc</filename>
-            from any custom kernel recipes you might have.
-            This will avoid breakage in post 2.4 releases.
-        </para>
-    </section>
-
-    <section id='migration-2.4-package-qa-changes'>
-        <title>Package QA Changes</title>
-
-        <para>
-            The following package QA changes took place:
-            <itemizedlist>
-                <listitem><para>
-                    The "unsafe-references-in-scripts" QA check has been
-                    removed.
-                    </para></listitem>
-                <listitem><para>
-                    If you refer to <filename>${COREBASE}/LICENSE</filename>
-                    within
-                    <link linkend='var-LIC_FILES_CHKSUM'><filename>LIC_FILES_CHKSUM</filename></link>
-                    you receive a warning because this file is a description of
-                    the license for OE-Core.
-                    Use <filename>${COMMON_LICENSE_DIR}/MIT</filename>
-                    if your recipe is MIT-licensed and you cannot use the
-                    preferred method of referring to a file within the source
-                    tree.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.4-readme-changes'>
-        <title><filename>README</filename> File Changes</title>
-
-        <para>
-            The following are changes to <filename>README</filename> files:
-            <itemizedlist>
-                <listitem><para>
-                    The main Poky <filename>README</filename> file has been
-                    moved to the <filename>meta-poky</filename> layer and
-                    has been renamed <filename>README.poky</filename>.
-                    A symlink has been created so that references to the old
-                    location work.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>README.hardware</filename> file has been moved
-                    to <filename>meta-yocto-bsp</filename>.
-                    A symlink has been created so that references to the old
-                    location work.
-                    </para></listitem>
-                <listitem><para>
-                    A <filename>README.qemu</filename> file has been created
-                    with coverage of the <filename>qemu*</filename> machines.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.4-miscellaneous-changes'>
-        <title>Miscellaneous Changes</title>
-
-        <para>
-            The following are additional changes:
-            <itemizedlist>
-                <listitem><para>
-                    The <filename>ROOTFS_PKGMANAGE_BOOTSTRAP</filename>
-                    variable and any references to it have been removed.
-                    You should remove this variable from any custom recipes.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>meta-yocto</filename> directory has been
-                    removed.
-                    <note>
-                        In the Yocto Project 2.1 release
-                        <filename>meta-yocto</filename> was renamed to
-                        <filename>meta-poky</filename> and the
-                        <filename>meta-yocto</filename> subdirectory remained
-                        to avoid breaking existing configurations.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>maintainers.inc</filename> file, which tracks
-                    maintainers by listing a primary person responsible for each
-                    recipe in OE-Core, has been moved from
-                    <filename>meta-poky</filename> to OE-Core (i.e. from
-                    <filename>meta-poky/conf/distro/include</filename> to
-                    <filename>meta/conf/distro/include</filename>).
-                    </para></listitem>
-                <listitem><para>
-                    The
-                    <link linkend='ref-classes-buildhistory'><filename>buildhistory</filename></link>
-                    class now makes a single commit per build rather than one
-                    commit per subdirectory in the repository.
-                    This behavior assumes the commits are enabled with
-                    <link linkend='var-BUILDHISTORY_COMMIT'><filename>BUILDHISTORY_COMMIT</filename></link>
-                    = "1", which is typical.
-                    Previously, the <filename>buildhistory</filename> class made
-                    one commit per subdirectory in the repository in order to
-                    make it easier to see the changes for a particular
-                    subdirectory.
-                    To view a particular change, specify that subdirectory as
-                    the last parameter on the <filename>git show</filename>
-                    or <filename>git diff</filename> commands.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>x86-base.inc</filename> file, which is
-                    included by all x86-based machine configurations, now sets
-                    <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>
-                    using <filename>?=</filename> to "live" rather than
-                    appending with <filename>+=</filename>.
-                    This change makes the default easier to override.
-                    </para></listitem>
-                <listitem><para>
-                    BitBake fires multiple "BuildStarted" events when
-                    multiconfig is enabled (one per configuration).
-                    For more information, see the
-                    "<ulink url='&YOCTO_DOCS_BB_URL;#events'>Events</ulink>"
-                    section in the BitBake User Manual.
-                    </para></listitem>
-                <listitem><para>
-                    By default, the <filename>security_flags.inc</filename> file
-                    sets a
-                    <link linkend='var-GCCPIE'><filename>GCCPIE</filename></link>
-                    variable with an option to enable Position Independent
-                    Executables (PIE) within <filename>gcc</filename>.
-                    Enabling PIE in the GNU C Compiler (GCC), makes Return
-                    Oriented Programming (ROP) attacks much more difficult to
-                    execute.
-                    </para></listitem>
-                <listitem><para>
-                    OE-Core now provides a
-                    <filename>bitbake-layers</filename> plugin that implements
-                    a "create-layer" subcommand.
-                    The implementation of this subcommand has resulted in the
-                    <filename>yocto-layer</filename> script being deprecated and
-                    will likely be removed in the next Yocto Project release.
-                    </para></listitem>
-                <listitem><para>
-                      The <filename>vmdk</filename>, <filename>vdi</filename>,
-                      and <filename>qcow2</filename> image file types are now
-                      used in conjunction with the "wic" image type through
-                      <filename>CONVERSION_CMD</filename>.
-                      Consequently, the equivalent image types are now
-                      <filename>wic.vmdk</filename>, <filename>wic.vdi</filename>,
-                      and <filename>wic.qcow2</filename>, respectively.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>do_image_&lt;type&gt;[depends]</filename> has
-                    replaced <filename>IMAGE_DEPENDS_&lt;type&gt;</filename>.
-                    If you have your own classes that implement custom image
-                    types, then you need to update them.
-                    </para></listitem>
-                <listitem><para>
-                    OpenSSL 1.1 has been introduced.
-                    However, the default is still 1.0.x through the
-                    <link linkend='var-PREFERRED_VERSION'><filename>PREFERRED_VERSION</filename></link>
-                    variable.
-                    This preference is set is due to the remaining compatibility
-                    issues with other software.
-                    The
-                    <link linkend='var-PROVIDES'><filename>PROVIDES</filename></link>
-                    variable  in the openssl 1.0 recipe now includes "openssl10"
-                    as a marker that can be used in
-                    <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>
-                    within recipes that build software that still depend on
-                    OpenSSL 1.0.
-                    </para></listitem>
-                <listitem><para>
-                    To ensure consistent behavior, BitBake's "-r" and "-R"
-                    options (i.e. prefile and postfile), which are used to
-                    read or post-read additional configuration files from the
-                    command line, now only affect the current BitBake command.
-                    Before these BitBake changes, these options would "stick"
-                    for future executions.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='moving-to-the-yocto-project-2.5-release'>
-    <title>Moving to the Yocto Project 2.5 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 2.5 Release from the prior release.
-    </para>
-
-    <section id='migration-2.5-packaging-changes'>
-        <title>Packaging Changes</title>
-
-        <para>
-            This section provides information about packaging changes that have
-            occurred:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>bind-libs</filename>:</emphasis>
-                    The libraries packaged by the bind recipe are in a
-                    separate <filename>bind-libs</filename> package.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>libfm-gtk</filename>:</emphasis>
-                    The <filename>libfm</filename> GTK+ bindings are split into
-                    a separate <filename>libfm-gtk</filename> package.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>flex-libfl</filename>:</emphasis>
-                    The flex recipe splits out libfl into a separate
-                    <filename>flex-libfl</filename> package to avoid too many
-                    dependencies being pulled in where only the library is
-                    needed.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>grub-efi</filename>:</emphasis>
-                    The <filename>grub-efi</filename> configuration is split
-                    into a separate <filename>grub-bootconf</filename>
-                    recipe.
-                    However, the dependency relationship from
-                    <filename>grub-efi</filename> is through a
-                    virtual/grub-bootconf provider making it possible to have
-                    your own recipe provide the dependency.
-                    Alternatively, you can use a BitBake append file to bring
-                    the configuration back into the
-                    <filename>grub-efi</filename> recipe.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>armv7a Legacy Package Feed Support:</emphasis>
-                    Legacy support is removed for transitioning from
-                    <filename>armv7a</filename> to
-                    <filename>armv7a-vfp-neon</filename> in package feeds,
-                    which was previously enabled by setting
-                    <filename>PKGARCHCOMPAT_ARMV7A</filename>.
-                    This transition occurred in 2011 and active package feeds
-                    should by now be updated to the new naming.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.5-removed-recipes'>
-        <title>Removed Recipes</title>
-
-        <para>
-            The following recipes have been removed:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>gcc</filename>:</emphasis>
-                    The version 6.4 recipes are replaced by 7.x.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>gst-player</filename>:</emphasis>
-                    Renamed to <filename>gst-examples</filename> as per
-                    upstream.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>hostap-utils</filename>:</emphasis>
-                    This software package is obsolete.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>latencytop</filename>:</emphasis>
-                    This recipe is no longer maintained upstream.
-                    The last release was in 2009.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>libpfm4</filename>:</emphasis>
-                    The only file that requires this recipe is
-                    <filename>oprofile</filename>, which has been removed.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>linux-yocto</filename>:</emphasis>
-                    The version 4.4, 4.9, and 4.10 recipes have been removed.
-                    Versions 4.12, 4.14, and 4.15 remain.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>man</filename>:</emphasis>
-                    This recipe has been replaced by modern
-                    <filename>man-db</filename>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>mkelfimage</filename>:</emphasis>
-                    This tool has been removed in the upstream coreboot project,
-                    and is no longer needed with the removal of the ELF image
-                    type.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>nativesdk-postinst-intercept</filename>:</emphasis>
-                    This recipe is not maintained.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>neon</filename>:</emphasis>
-                    This software package is no longer maintained upstream and
-                    is no longer needed by anything in OpenEmbedded-Core.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>oprofile</filename>:</emphasis>
-                    The functionality of this recipe is replaced by
-                    <filename>perf</filename> and keeping compatibility on
-                    an ongoing basis with <filename>musl</filename> is
-                    difficult.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>pax</filename>:</emphasis>
-                    This software package is obsolete.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>stat</filename>:</emphasis>
-                    This software package is not maintained upstream.
-                    <filename>coreutils</filename> provides a modern stat binary.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>zisofs-tools-native</filename>:</emphasis>
-                    This recipe is no longer needed because the compressed
-                    ISO image feature has been removed.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.5-scripts-and-tools-changes'>
-        <title>Scripts and Tools Changes</title>
-
-        <para>
-            The following are changes to scripts and tools:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>yocto-bsp</filename>,
-                    <filename>yocto-kernel</filename>, and
-                    <filename>yocto-layer</filename></emphasis>:
-                    The <filename>yocto-bsp</filename>,
-                    <filename>yocto-kernel</filename>, and
-                    <filename>yocto-layer</filename> scripts previously shipped
-                    with poky but not in OpenEmbedded-Core have been removed.
-                    These scripts are not maintained and are outdated.
-                    In many cases, they are also limited in scope.
-                    The <filename>bitbake-layers create-layer</filename> command
-                    is a direct replacement for <filename>yocto-layer</filename>.
-                    See the documentation to create a BSP or kernel recipe in
-                    the
-                    "<ulink url='&YOCTO_DOCS_BSP_URL;#bsp-kernel-recipe-example'>BSP Kernel Recipe Example</ulink>"
-                     section.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>devtool finish</filename>:</emphasis>
-                    <filename>devtool finish</filename> now exits with an error
-                    if there are uncommitted changes or a rebase/am in progress
-                    in the recipe's source repository.
-                    If this error occurs, there might be uncommitted changes
-                    that will not be included in updates to the patches applied
-                    by the recipe.
-                    A -f/--force option is provided for situations that the
-                    uncommitted changes are inconsequential and you want to
-                    proceed regardless.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>scripts/oe-setup-rpmrepo</filename> script:</emphasis>
-                    The functionality of
-                    <filename>scripts/oe-setup-rpmrepo</filename> is replaced by
-                    <filename>bitbake package-index</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>scripts/test-dependencies.sh</filename> script:</emphasis>
-                    The script is largely made obsolete by the
-                    recipe-specific sysroots functionality introduced in the
-                    previous release.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.5-bitbake-changes'>
-        <title>BitBake Changes</title>
-
-        <para>
-            The following are BitBake changes:
-            <itemizedlist>
-                <listitem><para>
-                    The <filename>--runall</filename> option has changed.
-                    There are two different behaviors people might want:
-                    <itemizedlist>
-                        <listitem><para>
-                            <emphasis>Behavior A:</emphasis>
-                            For a given target (or set of targets) look through
-                            the task graph and run task X only if it is present
-                            and will be built.
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis>Behavior B:</emphasis>
-                            For a given target (or set of targets) look through
-                            the task graph and run task X if any recipe in the
-                            taskgraph has such a target, even if it is not in
-                            the original task graph.
-                            </para></listitem>
-                    </itemizedlist>
-                    The <filename>--runall</filename> option now performs
-                    "Behavior B".
-                    Previously <filename>--runall</filename> behaved like
-                    "Behavior A".
-                    A <filename>--runonly</filename> option has been added to
-                    retain the ability to perform "Behavior A".
-                    </para></listitem>
-                <listitem><para>
-                    Several explicit "run this task for all recipes in the
-                    dependency tree" tasks have been removed (e.g.
-                    <filename>fetchall</filename>,
-                    <filename>checkuriall</filename>, and the
-                    <filename>*all</filename> tasks provided by the
-                    <filename>distrodata</filename> and
-                    <filename>archiver</filename> classes).
-                    There is a BitBake option to complete this for any arbitrary
-                    task. For example:
-                    <literallayout class='monospaced'>
-     bitbake &lt;target&gt; -c fetchall
-                    </literallayout>
-                    should now be replaced with:
-                    <literallayout class='monospaced'>
-     bitbake &lt;target&gt; --runall=fetch
-                    </literallayout>
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.5-python-and-python3-changes'>
-        <title>Python and Python 3 Changes</title>
-
-        <para>
-            The following are auto-packaging changes to Python and Python 3:
-        </para>
-        <para>
-            The script-managed <filename>python-*-manifest.inc</filename> files
-            that were previously used to generate Python and Python 3
-            packages have been replaced with a JSON-based file that is
-            easier to read and maintain.
-            A new task is available for maintainers of the Python recipes to
-            update the JSON file when upgrading to new Python versions.
-            You can now edit the file directly instead of having to edit a
-            script and run it to update the file.
-        </para>
-        <para>
-            One particular change to note is that the Python recipes no longer
-            have build-time provides for their packages.
-            This assumes <filename>python-foo</filename> is one of the packages
-            provided by the Python recipe.
-            You can no longer run <filename>bitbake python-foo</filename> or
-            have a <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPENDS'><filename>DEPENDS</filename></ulink> on
-            <filename>python-foo</filename>, but doing either of the following
-            causes the package to work as expected:
-            <literallayout class='monospaced'>
-     IMAGE_INSTALL_append = " python-foo"
-            </literallayout>
-            or
-            <literallayout class='monospaced'>
-     RDEPENDS_${PN} = "python-foo"
-            </literallayout>
-            The earlier build-time provides behavior was a quirk of the way the
-            Python manifest file was created.
-            For more information on this change please see
-            <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=8d94b9db221d1def42f091b991903faa2d1651ce'>this commit</ulink>.
-        </para>
-    </section>
-
-    <section id='migration-2.5-miscellaneous-changes'>
-        <title>Miscellaneous Changes</title>
-
-        <para>
-            The following are additional changes:
-            <itemizedlist>
-                <listitem><para>
-                    The <filename>kernel</filename> class supports building
-                    packages for multiple kernels.
-                    If your kernel recipe or <filename>.bbappend</filename> file
-                    mentions packaging at all, you should replace references to
-                    the kernel in package names with
-                    <filename>${KERNEL_PACKAGE_NAME}</filename>.
-                    For example, if you disable automatic installation of the
-                    kernel image using
-                    <filename>RDEPENDS_kernel-base = ""</filename> you can avoid
-                    warnings using
-                    <filename>RDEPENDS_${KERNEL_PACKAGE_NAME}-base = ""</filename>
-                    instead.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>buildhistory</filename> class commits changes
-                    to the repository by default so you no longer need to set
-                    <filename>BUILDHISTORY_COMMIT = "1"</filename>.
-                    If you want to disable commits you need to set
-                    <filename>BUILDHISTORY_COMMIT = "0"</filename> in your
-                    configuration.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>beaglebone</filename> reference machine has
-                    been renamed to <filename>beaglebone-yocto</filename>.
-                    The <filename>beaglebone-yocto</filename> BSP is a reference
-                    implementation using only mainline components available in
-                    OpenEmbedded-Core and <filename>meta-yocto-bsp</filename>,
-                    whereas Texas Instruments maintains a full-featured BSP in
-                    the <filename>meta-ti</filename> layer.
-                    This rename avoids the previous name clash that existed
-                    between the two BSPs.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>update-alternatives</filename> class no longer
-                    works with SysV <filename>init</filename> scripts because
-                    this usage has been problematic.
-                    Also, the <filename>sysklogd</filename> recipe no longer
-                    uses <filename>update-alternatives</filename> because it is
-                    incompatible with other implementations.
-                    </para></listitem>
-                <listitem><para>
-                    By default, the
-                    <link linkend='ref-classes-cmake'><filename>cmake</filename></link>
-                    class uses <filename>ninja</filename> instead of
-                    <filename>make</filename> for building.
-                    This improves build performance.
-                    If a recipe is broken with <filename>ninja</filename>, then
-                    the recipe can set
-                    <filename>OECMAKE_GENERATOR = "Unix Makefiles"</filename>
-                    to change back to <filename>make</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    The previously deprecated <filename>base_*</filename>
-                    functions have been removed in favor of their replacements
-                    in <filename>meta/lib/oe</filename> and
-                    <filename>bitbake/lib/bb</filename>.
-                    These are typically used from recipes and classes.
-                    Any references to the old functions must be updated.
-                    The following table shows the removed functions and their
-                    replacements:
-
-                    <literallayout class='monospaced'>
-     <emphasis>Removed</emphasis>                                 <emphasis>Replacement</emphasis>
-     ============================            ============================
-     base_path_join()                        oe.path.join()
-     base_path_relative()                    oe.path.relative()
-     base_path_out()                         oe.path.format_display()
-     base_read_file()                        oe.utils.read_file()
-     base_ifelse()                           oe.utils.ifelse()
-     base_conditional()                      oe.utils.conditional()
-     base_less_or_equal()                    oe.utils.less_or_equal()
-     base_version_less_or_equal()            oe.utils.version_less_or_equal()
-     base_contains()                         bb.utils.contains()
-     base_both_contain()                     oe.utils.both_contain()
-     base_prune_suffix()                     oe.utils.prune_suffix()
-     oe_filter()                             oe.utils.str_filter()
-     oe_filter_out()                         oe.utils.str_filter_out() (or use the _remove operator).
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    Using <filename>exit 1</filename> to explicitly defer a
-                    postinstall script until first boot is now deprecated since
-                    it is not an obvious mechanism and can mask actual errors.
-                    If you want to explicitly defer a postinstall to first boot
-                    on the target rather than at <filename>rootfs</filename>
-                    creation time, use
-                    <filename>pkg_postinst_ontarget()</filename>
-                    or call
-                    <filename>postinst_intercept delay_to_first_boot</filename>
-                    from <filename>pkg_postinst()</filename>.
-                    Any failure of a <filename>pkg_postinst()</filename>
-                    script (including <filename>exit 1</filename>)
-                    will trigger a warning during
-                    <filename>do_rootfs</filename>.</para>
-
-                    <para>For more information, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#new-recipe-post-installation-scripts'>Post-Installation Scripts</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>elf</filename> image type has been removed.
-                    This image type was removed because the
-                    <filename>mkelfimage</filename> tool
-                    that was required to create it is no longer provided by
-                    coreboot upstream and required updating every time
-                    <filename>binutils</filename> updated.
-                    </para></listitem>
-                <listitem><para>
-                    Support for .iso image compression (previously enabled
-                    through <filename>COMPRESSISO = "1"</filename>) has been
-                    removed.
-                    The userspace tools (<filename>zisofs-tools</filename>) are
-                    unmaintained and <filename>squashfs</filename> provides
-                    better performance and compression.
-                    In order to build a live image with squashfs+lz4 compression
-                    enabled you should now set
-                    <filename>LIVE_ROOTFS_TYPE = "squashfs-lz4"</filename>
-                    and ensure that <filename>live</filename>
-                    is in <filename>IMAGE_FSTYPES</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    Recipes with an unconditional dependency on
-                    <filename>libpam</filename> are only buildable with
-                    <filename>pam</filename> in
-                    <filename>DISTRO_FEATURES</filename>.
-                    If the dependency is truly optional then it is recommended
-                    that the dependency be conditional upon
-                    <filename>pam</filename> being in
-                    <filename>DISTRO_FEATURES</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    For EFI-based machines, the bootloader
-                    (<filename>grub-efi</filename> by default) is installed into
-                    the image at /boot.
-                    Wic can be used to split the bootloader into separate boot
-                    and rootfs partitions if necessary.
-                    </para></listitem>
-                <listitem><para>
-                    Patches whose context does not match exactly (i.e. where
-                    patch reports "fuzz" when applying) will generate a
-                    warning.
-                    For an example of this see
-                    <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=cc97bc08125b63821ce3f616771830f77c456f57'>this commit</ulink>.
-                    </para></listitem>
-                <listitem><para>
-                    Layers are expected to set
-                    <filename>LAYERSERIES_COMPAT_layername</filename>
-                    to match the version(s) of OpenEmbedded-Core they are
-                    compatible with.
-                    This is specified as codenames using spaces to separate
-                    multiple values (e.g. "rocko sumo").
-                    If a layer does not set
-                    <filename>LAYERSERIES_COMPAT_layername</filename>, a warning
-                    will is shown.
-                    If a layer sets a value that does not include the current
-                    version ("sumo" for the 2.5 release), then an error will be
-                    produced.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>TZ</filename> environment variable is set to
-                    "UTC" within the build environment in order to fix
-                    reproducibility problems in some recipes.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='moving-to-the-yocto-project-2.6-release'>
-    <title>Moving to the Yocto Project 2.6 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 2.6 Release from the prior release.
-    </para>
-
-    <section id='migration-2.6-gcc-changes'>
-        <title>GCC 8.2 is Now Used by Default</title>
-
-        <para>
-            The GNU Compiler Collection version 8.2 is now used by default
-            for compilation.
-            For more information on what has changed in the GCC 8.x release,
-            see
-            <ulink url='https://gcc.gnu.org/gcc-8/changes.html'></ulink>.
-        </para>
-
-        <para>
-            If you still need to compile with version 7.x, GCC 7.3 is
-            also provided.
-            You can select this version by setting the
-            and can be selected by setting the
-            <link linkend='var-GCCVERSION'><filename>GCCVERSION</filename></link>
-            variable to "7.%" in your configuration.
-        </para>
-    </section>
-
-    <section id='migration-2.6-removed-recipes'>
-        <title>Removed Recipes</title>
-
-        <para>
-            The following recipes have been removed:
-            <literallayout class='monospaced'>
-     <emphasis><filename>beecrypt</filename>:</emphasis> No longer needed since moving to RPM 4.
-     <emphasis><filename>bigreqsproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>calibrateproto</filename>:</emphasis> Removed in favor of <filename>xinput</filename>.
-     <emphasis><filename>compositeproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>damageproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>dmxproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>dri2proto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>dri3proto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>eee-acpi-scripts</filename>:</emphasis> Became obsolete.
-     <emphasis><filename>fixesproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>fontsproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>fstests</filename>:</emphasis> Became obsolete.
-     <emphasis><filename>gccmakedep</filename>:</emphasis> No longer used.
-     <emphasis><filename>glproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>gnome-desktop3</filename>:</emphasis> No longer needed.  This recipe has moved to <filename>meta-oe</filename>.
-     <emphasis><filename>icon-naming-utils</filename>:</emphasis> No longer used since the Sato theme was removed in 2016.
-     <emphasis><filename>inputproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>kbproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>libusb-compat</filename>:</emphasis> Became obsolete.
-     <emphasis><filename>libuser</filename>:</emphasis> Became obsolete.
-     <emphasis><filename>libnfsidmap</filename>:</emphasis> No longer an external requirement since <filename>nfs-utils</filename> 2.2.1.  <filename>libnfsidmap</filename> is now integrated.
-     <emphasis><filename>libxcalibrate</filename>:</emphasis> No longer needed with <filename>xinput</filename>
-     <emphasis><filename>mktemp</filename>:</emphasis> Became obsolete. The <filename>mktemp</filename> command is provided by both <filename>busybox</filename> and <filename>coreutils</filename>.
-     <emphasis><filename>ossp-uuid</filename>:</emphasis> Is not being maintained and has mostly been replaced by <filename>uuid.h</filename> in <filename>util-linux</filename>.
-     <emphasis><filename>pax-utils</filename>:</emphasis> No longer needed.  Previous QA tests that did use this recipe are now done at build time.
-     <emphasis><filename>pcmciautils</filename>:</emphasis> Became obsolete.
-     <emphasis><filename>pixz</filename>:</emphasis> No longer needed. <filename>xz</filename> now supports multi-threaded compression.
-     <emphasis><filename>presentproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>randrproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>recordproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>renderproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>resourceproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>scrnsaverproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>trace-cmd</filename>:</emphasis> Became obsolete.  <filename>perf</filename> replaced this recipe's functionally.
-     <emphasis><filename>videoproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>wireless-tools</filename>:</emphasis> Became obsolete.  Superseded by <filename>iw</filename>.
-     <emphasis><filename>xcmiscproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>xextproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>xf86dgaproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>xf86driproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>xf86miscproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>xf86-video-omapfb</filename>:</emphasis> Became obsolete.  Use kernel modesetting driver instead.
-     <emphasis><filename>xf86-video-omap</filename>:</emphasis> Became obsolete.  Use kernel modesetting driver instead.
-     <emphasis><filename>xf86vidmodeproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>xineramaproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>xproto</filename>:</emphasis> Replaced by <filename>xorgproto</filename>.
-     <emphasis><filename>yasm</filename>:</emphasis> No longer needed since previous usages are now satisfied by <filename>nasm</filename>.
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='migration-2.6-packaging-changes'>
-        <title>Packaging Changes</title>
-
-        <para>
-            The following packaging changes have been made:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>cmake</filename>:</emphasis>
-                    <filename>cmake.m4</filename> and
-                    <filename>toolchain</filename> files have been moved to the
-                    main package.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>iptables</filename>:</emphasis>
-                    The <filename>iptables</filename> modules have been split
-                    into separate packages.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>alsa-lib</filename>:</emphasis>
-                    <filename>libasound</filename> is now in the main
-                    <filename>alsa-lib</filename> package instead of
-                    <filename>libasound</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>glibc</filename>:</emphasis>
-                    <filename>libnss-db</filename> is now in its own package
-                    along with a <filename>/var/db/makedbs.sh</filename>
-                    script to update databases.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>python</filename> and <filename>python3</filename>:</emphasis>
-                    The main package has been removed from the recipe.
-                    You must install specific packages or
-                    <filename>python-modules</filename> /
-                    <filename>python3-modules</filename> for everything.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>systemtap</filename>:</emphasis>
-                    Moved <filename>systemtap-exporter</filename> into its own
-                    package.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.6-xorg-protocol-dependencies'>
-        <title>XOrg Protocol dependencies</title>
-
-        <para>
-            The "*proto" upstream repositories have been combined into one
-            "xorgproto" repository.
-            Thus, the corresponding recipes have also been combined into a
-            single <filename>xorgproto</filename> recipe.
-            Any recipes that depend upon the older <filename>*proto</filename>
-            recipes need to be changed to depend on the newer
-            <filename>xorgproto</filename> recipe instead.
-        </para>
-
-        <para>
-            For names of recipes removed because of this repository change,
-            see the
-            <link linkend="migration-2.6-removed-recipes">Removed Recipes</link>
-            section.
-        </para>
-    </section>
-
-    <section id='migration-2.6-distutils-distutils3-fetching-dependencies'>
-        <title><filename>distutils</filename> and <filename>distutils3</filename> Now Prevent Fetching Dependencies During the <filename>do_configure</filename> Task</title>
-
-        <para>
-            Previously, it was possible for Python recipes that inherited
-            the
-            <link linkend='ref-classes-distutils'><filename>distutils</filename></link>
-            and
-            <link linkend='ref-classes-distutils3'><filename>distutils3</filename></link>
-            classes to fetch code during the
-            <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>
-            task to satisfy dependencies mentioned in
-            <filename>setup.py</filename> if those dependencies were not
-            provided in the sysroot (i.e. recipes providing the dependencies
-            were missing from
-            <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>).
-            <note>
-                This change affects classes beyond just the two mentioned
-                (i.e. <filename>distutils</filename> and
-                <filename>distutils3</filename>).
-                Any recipe that inherits <filename>distutils*</filename>
-                classes are affected.
-                For example, the <filename>setuptools</filename> and
-                <filename>setuptools3</filename> recipes are affected since
-                they inherit the <filename>distutils*</filename> classes.
-            </note>
-        </para>
-
-        <para>
-            Fetching these types of dependencies that are not provided in the
-            sysroot negatively affects the ability to reproduce builds.
-            This type of fetching is now explicitly disabled.
-            Consequently, any missing dependencies in Python recipes that
-            use these classes now result in an error during the
-            <filename>do_configure</filename> task.
-        </para>
-    </section>
-
-    <section id='migration-2.6-linux-yocto-configuration-audit-issues-now-correctly-reported'>
-        <title><filename>linux-yocto</filename> Configuration Audit Issues Now Correctly Reported</title>
-
-        <para>
-            Due to a bug, the kernel configuration audit functionality was
-            not writing out any resulting warnings during the build.
-            This issue is now corrected.
-            You might notice these warnings now if you have a custom kernel
-            configuration with a <filename>linux-yocto</filename> style
-            kernel recipe.
-        </para>
-    </section>
-
-    <section id='migration-2.6-image-kernel-artifact-naming-changes'>
-        <title>Image/Kernel Artifact Naming Changes</title>
-
-        <para>
-            The following changes have been made:
-            <itemizedlist>
-                <listitem><para>
-                    Name variables (e.g.
-                    <link linkend='var-IMAGE_NAME'><filename>IMAGE_NAME</filename></link>)
-                    use a new <filename>IMAGE_VERSION_SUFFIX</filename>
-                    variable instead of
-                    <link linkend='var-DATETIME'><filename>DATETIME</filename></link>.
-                    Using <filename>IMAGE_VERSION_SUFFIX</filename> allows
-                    easier and more direct changes.</para>
-
-                    <para>The <filename>IMAGE_VERSION_SUFFIX</filename>
-                    variable is set in the
-                    <filename>bitbake.conf</filename> configuration file as
-                    follows:
-                    <literallayout class='monospaced'>
-     IMAGE_VERSION_SUFFIX = "-${DATETIME}"
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    Several variables have changed names for consistency:
-                    <literallayout class='monospaced'>
-    Old Variable Name               New Variable Name
-    ========================================================
-    KERNEL_IMAGE_BASE_NAME          <link linkend='var-KERNEL_IMAGE_NAME'>KERNEL_IMAGE_NAME</link>
-    KERNEL_IMAGE_SYMLINK_NAME       <link linkend='var-KERNEL_IMAGE_LINK_NAME'>KERNEL_IMAGE_LINK_NAME</link>
-    MODULE_TARBALL_BASE_NAME        <link linkend='var-MODULE_TARBALL_NAME'>MODULE_TARBALL_NAME</link>
-    MODULE_TARBALL_SYMLINK_NAME     <link linkend='var-MODULE_TARBALL_LINK_NAME'>MODULE_TARBALL_LINK_NAME</link>
-    INITRAMFS_BASE_NAME             <link linkend='var-INITRAMFS_NAME'>INITRAMFS_NAME</link>
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>MODULE_IMAGE_BASE_NAME</filename> variable
-                    has been removed.
-                    The module tarball name is now controlled directly with the
-                    <link linkend='var-MODULE_TARBALL_NAME'><filename>MODULE_TARBALL_NAME</filename></link>
-                    variable.
-                    </para></listitem>
-                <listitem><para>
-                    The
-                    <link linkend='var-KERNEL_DTB_NAME'><filename>KERNEL_DTB_NAME</filename></link>
-                    and
-                    <link linkend='var-KERNEL_DTB_LINK_NAME'><filename>KERNEL_DTB_LINK_NAME</filename></link>
-                    variables have been introduced to control kernel Device
-                    Tree Binary (DTB) artifact names instead of mangling
-                    <filename>KERNEL_IMAGE_*</filename> variables.
-                    </para></listitem>
-                <listitem><para>
-                    The
-                    <link linkend='var-KERNEL_FIT_NAME'><filename>KERNEL_FIT_NAME</filename></link>
-                    and
-                    <link linkend='var-KERNEL_FIT_LINK_NAME'><filename>KERNEL_FIT_LINK_NAME</filename></link>
-                    variables have been introduced to specify the name of
-                    flattened image tree (FIT) kernel images similar to other
-                    deployed artifacts.
-                    </para></listitem>
-                <listitem><para>
-                    The
-                    <link linkend='var-MODULE_TARBALL_NAME'><filename>MODULE_TARBALL_NAME</filename></link>
-                    and
-                    <link linkend='var-MODULE_TARBALL_LINK_NAME'><filename>MODULE_TARBALL_LINK_NAME</filename></link>
-                    variable values no longer include the "module-" prefix or
-                    ".tgz" suffix.
-                    These parts are now hardcoded so that the values are
-                    consistent with other artifact naming variables.
-                    </para></listitem>
-                <listitem><para>
-                    Added the
-                    <link linkend='var-INITRAMFS_LINK_NAME'><filename>INITRAMFS_LINK_NAME</filename></link>
-                    variable so that the symlink can be controlled similarly
-                    to other artifact types.
-                    </para></listitem>
-                <listitem><para>
-                    <link linkend='var-INITRAMFS_NAME'><filename>INITRAMFS_NAME</filename></link>
-                    now uses
-                    "${PKGE}-${PKGV}-${PKGR}-${MACHINE}${IMAGE_VERSION_SUFFIX}"
-                    instead of
-                    "${PV}-${PR}-${MACHINE}-${DATETIME}", which
-                    makes it consistent with other variables.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.6-serial-console-deprecated'>
-        <title><filename>SERIAL_CONSOLE</filename> Deprecated</title>
-
-        <para>
-            The
-            <link linkend='var-SERIAL_CONSOLE'><filename>SERIAL_CONSOLE</filename></link>
-            variable has been functionally replaced by the
-            <link linkend='var-SERIAL_CONSOLES'><filename>SERIAL_CONSOLES</filename></link>
-            variable for some time.
-            With the Yocto Project 2.6 release,
-            <filename>SERIAL_CONSOLE</filename> has been officially deprecated.
-        </para>
-
-        <para>
-            <filename>SERIAL_CONSOLE</filename> will continue to work as
-            before for the 2.6 release.
-            However, for the sake of future compatibility, it is recommended
-            that you replace all instances of
-            <filename>SERIAL_CONSOLE</filename> with
-            <filename>SERIAL_CONSOLES</filename>.
-            <note>
-                The only difference in usage is that
-                <filename>SERIAL_CONSOLES</filename> expects entries to be
-                separated using semicolons as compared to
-                <filename>SERIAL_CONSOLE</filename>, which expects spaces.
-            </note>
-        </para>
-    </section>
-
-    <section id='migration-2.6-poky-sets-unknown-configure-option-to-qa-error'>
-        <title>Configure Script Reports Unknown Options as Errors</title>
-
-        <para>
-            If the configure script reports an unknown option, this now
-            triggers a QA error instead of a warning.
-            Any recipes that previously got away with specifying such unknown
-            options now need to be fixed.
-        </para>
-    </section>
-
-    <section id='migration-2.6-override-changes'>
-        <title>Override Changes</title>
-
-        <para>
-            The following changes have occurred:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis>The <filename>virtclass-native</filename> and
-                    <filename>virtclass-nativesdk</filename> Overrides Have
-                    Been Removed:</emphasis>
-                    The <filename>virtclass-native</filename> and
-                    <filename>virtclass-nativesdk</filename> overrides have
-                    been deprecated since 2012 in favor of
-                    <filename>class-native</filename> and
-                    <filename>class-nativesdk</filename>, respectively.
-                    Both <filename>virtclass-native</filename> and
-                    <filename>virtclass-nativesdk</filename> are now dropped.
-                    <note>
-                        The <filename>virtclass-multilib-</filename> overrides
-                        for multilib are still valid.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>The <filename>forcevariable</filename>
-                    Override Now Has a Higher Priority Than
-                    <filename>libc</filename> Overrides:</emphasis>
-                    The <filename>forcevariable</filename> override is
-                    documented to be the highest priority override.
-                    However, due to a long-standing quirk of how
-                    <link linkend='var-OVERRIDES'><filename>OVERRIDES</filename></link>
-                    is set, the <filename>libc</filename> overrides (e.g.
-                    <filename>libc-glibc</filename>,
-                    <filename>libc-musl</filename>, and so forth) erroneously
-                    had a higher priority.
-                    This issue is now corrected.</para>
-
-                    <para>It is likely this change will not cause any
-                    problems.
-                    However, it is possible with some unusual configurations
-                    that you might see a change in behavior if you were
-                    relying on the previous behavior.
-                    Be sure to check how you use
-                    <filename>forcevariable</filename> and
-                    <filename>libc-*</filename> overrides in your custom
-                    layers and configuration files to ensure they make sense.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>The <filename>build-${BUILD_OS}</filename>
-                    Override Has Been Removed:</emphasis>
-                    The <filename>build-${BUILD_OS}</filename>, which is
-                    typically <filename>build-linux</filename>, override has
-                    been removed because building on a host operating system
-                    other than a recent version of Linux is neither supported
-                    nor recommended.
-                    Dropping the override avoids giving the impression that
-                    other host operating systems might be supported.
-                    </para></listitem>
-                <listitem><para>
-                    The "_remove" operator now preserves whitespace.
-                    Consequently, when specifying list items to remove, be
-                    aware that leading and trailing whitespace resulting from
-                    the removal is retained.</para>
-
-                    <para>See the
-                    "<ulink url='&YOCTO_DOCS_BB_URL;#removing-override-style-syntax'>Removal (Override Style Syntax)</ulink>"
-                    section in the BitBake User Manual for a detailed example.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.6-systemd-configuration-now-split-out-to-system-conf'>
-        <title><filename>systemd</filename> Configuration is Now Split Into <filename>systemd-conf</filename></title>
-
-        <para>
-            The configuration for the <filename>systemd</filename> recipe
-            has been moved into a <filename>system-conf</filename> recipe.
-            Moving this configuration to a separate recipe avoids the
-            <filename>systemd</filename> recipe from becoming machine-specific
-            for cases where machine-specific configurations need to be applied
-            (e.g. for <filename>qemu*</filename> machines).
-        </para>
-
-        <para>
-            Currently, the new recipe packages the following files:
-            <literallayout class='monospaced'>
-     ${sysconfdir}/machine-id
-     ${sysconfdir}/systemd/coredump.conf
-     ${sysconfdir}/systemd/journald.conf
-     ${sysconfdir}/systemd/logind.conf
-     ${sysconfdir}/systemd/system.conf
-     ${sysconfdir}/systemd/user.conf
-            </literallayout>
-            If you previously used bbappend files to append the
-            <filename>systemd</filename> recipe to change any of the
-            listed files, you must do so for the
-            <filename>systemd-conf</filename> recipe instead.
-        </para>
-    </section>
-
-    <section id='migration-2.6-automatic-testing-changes'>
-        <title>Automatic Testing Changes</title>
-
-        <para>
-            This section provides information about automatic testing
-            changes:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>TEST_IMAGE</filename> Variable Removed:</emphasis>
-                    Prior to this release, you set the
-                    <filename>TEST_IMAGE</filename> variable to "1" to
-                    enable automatic testing for successfully built images.
-                    The <filename>TEST_IMAGE</filename> variable no longer
-                    exists and has been replaced by the
-                    <link linkend='var-TESTIMAGE_AUTO'><filename>TESTIMAGE_AUTO</filename></link>
-                    variable.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Inheriting the <filename>testimage</filename> and
-                    <filename>testsdk</filename> Classes:</emphasis>
-                    Best practices now dictate that you use the
-                    <link linkend='var-IMAGE_CLASSES'><filename>IMAGE_CLASSES</filename></link>
-                    variable rather than the
-                    <link linkend='var-INHERIT'><filename>INHERIT</filename></link>
-                    variable when you inherit the
-                    <link linkend='ref-classes-testimage*'><filename>testimage</filename></link>
-                    and
-                    <link linkend='ref-classes-testsdk'><filename>testsdk</filename></link>
-                    classes used for automatic testing.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.6-openssl-changes'>
-        <title>OpenSSL Changes</title>
-
-        <para>
-            <ulink url='https://www.openssl.org/'>OpenSSL</ulink> has been
-            upgraded from 1.0 to 1.1.
-            By default, this upgrade could cause problems for recipes that
-            have both versions in their dependency chains.
-            The problem is that both versions cannot be installed together
-            at build time.
-            <note>
-                It is possible to have both versions of the library at runtime.
-            </note>
-        </para>
-    </section>
-
-    <section id='migration-2.6-bitbake-changes'>
-        <title>BitBake Changes</title>
-
-        <para>
-            The server logfile <filename>bitbake-cookerdaemon.log</filename> is
-            now always placed in the
-            <link linkend='build-directory'>Build Directory</link>
-            instead of the current directory.
-        </para>
-    </section>
-
-    <section id='migration-2.6-security-changes'>
-        <title>Security Changes</title>
-
-        <para>
-            The Poky distribution now uses security compiler flags by
-            default.
-            Inclusion of these flags could cause new failures due to stricter
-            checking for various potential security issues in code.
-        </para>
-    </section>
-
-    <section id='migration-2.6-post-installation-changes'>
-        <title>Post Installation Changes</title>
-
-        <para>
-            You must explicitly mark post installs to defer to the target.
-            If you want to explicitly defer a postinstall to first boot on
-            the target rather than at rootfs creation time, use
-            <filename>pkg_postinst_ontarget()</filename> or call
-            <filename>postinst_intercept delay_to_first_boot</filename> from
-            <filename>pkg_postinst()</filename>.
-            Any failure of a <filename>pkg_postinst()</filename> script
-            (including exit 1) triggers an error during the
-            <link linkend='ref-tasks-rootfs'><filename>do_rootfs</filename></link> task.
-        </para>
-
-        <para>
-            For more information on post-installation behavior, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#new-recipe-post-installation-scripts'>Post-Installation Scripts</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id='migration-2.6-python-3-profile-guided-optimizations'>
-        <title>Python 3 Profile-Guided Optimization</title>
-
-        <para>
-            The <filename>python3</filename> recipe now enables profile-guided
-            optimization.
-            Using this optimization requires a little extra build time in
-            exchange for improved performance on the target at runtime.
-            Additionally, the optimization is only enabled if the current
-            <link linkend='var-MACHINE'><filename>MACHINE</filename></link>
-            has support for user-mode emulation in QEMU (i.e. "qemu-usermode"
-            is in
-            <link linkend='var-MACHINE_FEATURES'><filename>MACHINE_FEATURES</filename></link>,
-            which it is by default).
-        </para>
-
-        <para>
-            If you wish to disable Python profile-guided optimization
-            regardless of the value of
-            <filename>MACHINE_FEATURES</filename>, then ensure that
-            <link linkend='var-PACKAGECONFIG'><filename>PACKAGECONFIG</filename></link>
-            for the <filename>python3</filename> recipe does not contain "pgo".
-            You could accomplish the latter using the following at the
-            configuration level:
-            <literallayout class='monospaced'>
-     PACKAGECONFIG_remove_pn-python3 = "pgo"
-            </literallayout>
-            Alternatively, you can set
-            <filename>PACKAGECONFIG</filename> using an append file for the
-            <filename>python3</filename> recipe.
-        </para>
-    </section>
-
-    <section id='migration-2.6-miscellaneous-changes'>
-        <title>Miscellaneous Changes</title>
-
-        <para>
-            The following miscellaneous changes occurred:
-            <itemizedlist>
-                <listitem><para>
-                    Default to using the Thumb-2 instruction set for armv7a
-                    and above.
-                    If you have any custom recipes that build software that
-                    needs to be built with the ARM instruction set, change the
-                    recipe to set the instruction set as follows:
-                    <literallayout class='monospaced'>
-     ARM_INSTRUCTION_SET = "arm"
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>run-postinsts</filename> no longer uses
-                    <filename>/etc/*-postinsts</filename> for
-                    <filename>dpkg/opkg</filename> in favor of built-in
-                    postinst support.
-                    RPM behavior remains unchanged.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>NOISO</filename> and
-                    <filename>NOHDD</filename> variables are no longer used.
-                    You now control building <filename>*.iso</filename> and
-                    <filename>*.hddimg</filename> image types directly
-                    by using the
-                    <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>
-                    variable.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>scripts/contrib/mkefidisk.sh</filename>
-                    has been removed in favor of Wic.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>kernel-modules</filename> has been removed from
-                    <link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link>
-                    for <filename>qemumips</filename> and
-                    <filename>qemumips64</filename> machines.
-                    Removal also impacts the <filename>x86-base.inc</filename>
-                    file.
-                    <note>
-                        <filename>genericx86</filename> and
-                        <filename>genericx86-64</filename> retain
-                        <filename>kernel-modules</filename> as part of the
-                        <filename>RRECOMMENDS</filename> variable setting.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>LGPLv2_WHITELIST_GPL-3.0</filename>
-                    variable has been removed.
-                    If you are setting this variable in your configuration,
-                    set or append it to the
-                    <filename>WHITELIST_GPL-3.0</filename> variable instead.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>${ASNEEDED}</filename> is now included in
-                    the
-                    <link linkend='var-TARGET_LDFLAGS'><filename>TARGET_LDFLAGS</filename></link>
-                    variable directly.
-                    The remaining definitions from
-                    <filename>meta/conf/distro/include/as-needed.inc</filename>
-                    have been moved to corresponding recipes.
-                    </para></listitem>
-                <listitem><para>
-                    Support for DSA host keys has been dropped from the
-                    OpenSSH recipes.
-                    If you are still using DSA keys, you must switch over to a
-                    more secure algorithm as recommended by OpenSSH upstream.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>dhcp</filename> recipe now uses the
-                    <filename>dhcpd6.conf</filename> configuration file in
-                    <filename>dhcpd6.service</filename> for IPv6 DHCP rather
-                    than re-using <filename>dhcpd.conf</filename>, which is
-                    now reserved for IPv4.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='moving-to-the-yocto-project-2.7-release'>
-    <title>Moving to the Yocto Project 2.7 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 2.7 Release from the prior release.
-    </para>
-
-    <section id='migration-2.7-bitbake-changes'>
-        <title>BitBake Changes</title>
-
-        <para>
-            The following changes have been made to BitBake:
-            <itemizedlist>
-                <listitem><para>
-                    BitBake now checks anonymous Python functions and pure
-                    Python functions (e.g. <filename>def funcname:</filename>)
-                    in the metadata for tab indentation.
-                    If found, BitBake  produces a warning.
-                    </para></listitem>
-                <listitem><para>
-                    Bitbake now checks
-                    <link linkend='var-BBFILE_COLLECTIONS'><filename>BBFILE_COLLECTIONS</filename></link>
-                    for duplicate entries and triggers an error if any are
-                    found.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.7-eclipse-support-dropped'>
-        <title><trademark class='trade'>Eclipse</trademark> Support Removed</title>
-
-        <para>
-            Support for the Eclipse IDE has been removed.
-            Support continues for those releases prior to 2.7 that did include
-            support.
-            The 2.7 release does not include the Eclipse Yocto plugin.
-        </para>
-    </section>
-
-    <section id='migration-2.7-qemu-native-splits-system-and-user-mode-parts'>
-        <title><filename>qemu-native</filename> Splits the System and User-Mode Parts</title>
-
-        <para>
-            The system and user-mode parts of <filename>qemu-native</filename>
-            are now split.
-            <filename>qemu-native</filename> provides the user-mode components
-            and <filename>qemu-system-native</filename> provides the system
-            components.
-            If you have recipes that depend on QEMU's system emulation
-            functionality at build time, they should now depend upon
-            <filename>qemu-system-native</filename> instead of
-            <filename>qemu-native</filename>.
-        </para>
-    </section>
-
-    <section id='migration-2.7-upstream-tracking.inc-removed'>
-        <title>The <filename>upstream-tracking.inc</filename> File Has Been Removed</title>
-
-        <para>
-            The previously deprecated <filename>upstream-tracking.inc</filename>
-            file is now removed.
-            Any <filename>UPSTREAM_TRACKING*</filename> variables are now set
-            in the corresponding recipes instead.
-        </para>
-
-        <para>
-            Remove any references you have to the
-            <filename>upstream-tracking.inc</filename> file in your
-            configuration.
-        </para>
-    </section>
-
-    <section id='migration-2.7-distro-features-libc-removed'>
-        <title>The <filename>DISTRO_FEATURES_LIBC</filename> Variable Has Been Removed</title>
-
-        <para>
-            The <filename>DISTRO_FEATURES_LIBC</filename> variable is no
-            longer used.
-            The ability to configure glibc using kconfig has been removed
-            for quite some time making the <filename>libc-*</filename> features
-            set no longer effective.
-        </para>
-
-        <para>
-            Remove any references you have to
-            <filename>DISTRO_FEATURES_LIBC</filename> in your own layers.
-        </para>
-    </section>
-
-    <section id='migration-2.7-license-values'>
-        <title>License Value Corrections</title>
-
-        <para>
-            The following corrections have been made to the
-            <link linkend='var-LICENSE'><filename>LICENSE</filename></link>
-            values set by recipes:
-            <literallayout class='monospaced'>
-     <emphasis>socat</emphasis>: Corrected <filename>LICENSE</filename> to be "GPLv2" rather than
-        "GPLv2+".
-
-     <emphasis>libgfortran</emphasis>: Set license to "GPL-3.0-with-GCC-exception".
-
-     <emphasis>elfutils</emphasis>: Removed "Elfutils-Exception" and set to "GPLv2" for shared
-        libraries
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='migration-2.7-packaging-changes'>
-        <title>Packaging Changes</title>
-
-        <para>
-            This section provides information about packaging changes.
-            <itemizedlist>
-                <listitem><para>
-                    <filename>bind</filename>: The
-                    <filename>nsupdate</filename> binary has been moved to
-                    the <filename>bind-utils</filename> package.
-                    </para></listitem>
-                <listitem><para>
-                    Debug split: The default debug split has been changed to
-                    create separate source packages (i.e.
-                    <replaceable>package_name</replaceable><filename>-dbg</filename>
-                    and
-                    <replaceable>package_name</replaceable><filename>-src</filename>).
-                    If you are currently using <filename>dbg-pkgs</filename>
-                    in
-                    <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>
-                    to bring in debug symbols and you still need the sources,
-                    you must now also add <filename>src-pkgs</filename> to
-                    <filename>IMAGE_FEATURES</filename>.
-                    Source packages remain in the target portion of the SDK
-                    by default, unless you have set your own value for
-                    <link linkend='var-SDKIMAGE_FEATURES'><filename>SDKIMAGE_FEATURES</filename></link>
-                    that does not include <filename>src-pkgs</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    Mount all using <filename>util-linux</filename>:
-                    <filename>/etc/default/mountall</filename> has
-                    moved into the -mount sub-package.
-                    </para></listitem>
-                <listitem><para>
-                    Splitting binaries using <filename>util-linux</filename>:
-                    <filename>util-linux</filename> now splits each binary into
-                    its own package for fine-grained control.
-                    The main <filename>util-linux</filename> package pulls in
-                    the individual binary packages using the
-                    <link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link>
-                    and
-                    <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>
-                    variables.
-                    As a result, existing images should not see any changes
-                    assuming
-                    <link linkend='var-NO_RECOMMENDATIONS'><filename>NO_RECOMMENDATIONS</filename></link>
-                    is not set.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>netbase/base-files</filename>:
-                    <filename>/etc/hosts</filename> has moved from
-                    <filename>netbase</filename> to
-                    <filename>base-files</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>tzdata</filename>: The main package has been
-                    converted to an empty meta package that pulls in all
-                    <filename>tzdata</filename> packages by default.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>lrzsz</filename>: This package has been removed
-                    from <filename>packagegroup-self-hosted</filename> and
-                    <filename>packagegroup-core-tools-testapps</filename>.
-                    The X/Y/ZModem support is less likely to be needed on
-                    modern systems.
-                    If you are relying on these packagegroups to include the
-                    <filename>lrzsz</filename> package in your image, you
-                    now need to explicitly add the package.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-2.7-removed-recipes'>
-        <title>Removed Recipes</title>
-
-        <para>
-            The following recipes have been removed:
-            <literallayout class='monospaced'>
-     <emphasis>gcc</emphasis>: Drop version 7.3 recipes. Version 8.3 now remains.
-
-     <emphasis>linux-yocto</emphasis>: Drop versions 4.14 and 4.18 recipes. Versions 4.19 and 5.0 remain.
-
-     <emphasis>go</emphasis>: Drop version 1.9 recipes. Versions 1.11 and 1.12 remain.
-
-     <emphasis>xvideo-tests</emphasis>: Became obsolete.
-
-     <emphasis>libart-lgpl</emphasis>: Became obsolete.
-
-     <emphasis>gtk-icon-utils-native</emphasis>: These tools are now provided by gtk+3-native
-
-     <emphasis>gcc-cross-initial</emphasis>: No longer needed. gcc-cross/gcc-crosssdk is now used instead.
-
-     <emphasis>gcc-crosssdk-initial</emphasis>: No longer needed. gcc-cross/gcc-crosssdk is now used instead.
-
-     <emphasis>glibc-initial</emphasis>: Removed because the benefits of having it for site_config are
-        currently outweighed by the cost of building the recipe.
-            </literallayout>
-         </para>
-    </section>
-
-    <section id='migration-2.7-removed-classes'>
-        <title>Removed Classes</title>
-
-        <para>
-            The following classes have been removed:
-            <literallayout class='monospaced'>
-     <emphasis>distutils-tools</emphasis>: This class was never used.
-
-     <emphasis>bugzilla.bbclass</emphasis>: Became obsolete.
-
-     <emphasis>distrodata</emphasis>: This functionally has been replaced by a more modern
-         tinfoil-based implementation.
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='migration-2.7-miscellaneous-changes'>
-        <title>Miscellaneous Changes</title>
-
-        <para>
-            The following miscellaneous changes occurred:
-            <itemizedlist>
-                <listitem><para>
-                    The <filename>distro</filename> subdirectory of the Poky
-                    repository has been removed from the top-level
-                    <filename>scripts</filename> directory.
-                    </para></listitem>
-                <listitem><para>
-                    Perl now builds for the target using
-                    <ulink url='http://arsv.github.io/perl-cross/'><filename>perl-cross</filename></ulink>
-                    for better maintainability and improved build performance.
-                    This change should not present any problems unless you have
-                    heavily customized your Perl recipe.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>arm-tunes</filename>: Removed the "-march"
-                    option if mcpu is already added.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>update-alternatives</filename>: Convert file
-                    renames to
-                    <link linkend='var-PACKAGE_PREPROCESS_FUNCS'><filename>PACKAGE_PREPROCESS_FUNCS</filename></link>
-                    </para></listitem>
-                <listitem><para>
-                    <filename>base/pixbufcache</filename>: Obsolete
-                    <filename>sstatecompletions</filename> code has been
-                    removed.
-                    </para></listitem>
-                <listitem><para>
-                    <link linkend='ref-classes-native'><filename>native</filename></link>
-                    class:
-                    <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>
-                    handling has been enabled.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>inetutils</filename>: This recipe has rsh
-                    disabled.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='moving-to-the-yocto-project-3.0-release'>
-    <title>Moving to the Yocto Project 3.0 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 3.0 Release from the prior release.
-    </para>
-
-    <section id='migration-3.0-init-system-selection'>
-        <title>Init System Selection</title>
-
-        <para>
-            Changing the init system manager previously required setting a
-            number of different variables.
-            You can now change the manager by setting the
-            <filename>INIT_MANAGER</filename> variable and the corresponding
-            include files
-            (i.e. <filename>conf/distro/include/init-manager-*.conf</filename>).
-            Include files are provided for four values: "none", "sysvinit",
-            "systemd", and "mdev-busybox".
-            The default value, "none", for <filename>INIT_MANAGER</filename>
-            should allow your current settings to continue working.
-            However, it is advisable to explicitly set
-            <filename>INIT_MANAGER</filename>.
-        </para>
-    </section>
-
-    <section id='migration-3.0-lsb-support-removed'>
-        <title>LSB Support Removed</title>
-
-        <para>
-            Linux Standard Base (LSB) as a standard is not current, and
-            is not well suited for embedded applications.
-            Support can be continued in a separate layer if needed.
-            However, presently LSB support has been removed from the core.
-        </para>
-
-        <para>
-            As a result of this change, the <filename>poky-lsb</filename>
-            derivative distribution configuration that was also used for
-            testing alternative configurations has been replaced with a
-            <filename>poky-altcfg</filename> distribution that has LSB
-            parts removed.
-        </para>
-    </section>
-
-    <section id='migration-3.0-removed-recipes'>
-        <title>Removed Recipes</title>
-
-        <para>
-            The following recipes have been removed.
-            <itemizedlist>
-                <listitem><para>
-                    <filename>core-image-lsb-dev</filename>: Part of removed
-                    LSB support.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>core-image-lsb</filename>: Part of removed
-                    LSB support.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>core-image-lsb-sdk</filename>: Part of removed
-                    LSB support.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>cve-check-tool</filename>: Functionally replaced
-                    by the <filename>cve-update-db</filename> recipe and
-                    <filename>cve-check</filename> class.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>eglinfo</filename>: No longer maintained.
-                    <filename>eglinfo</filename> from
-                    <filename>mesa-demos</filename> is an adequate and
-                    maintained alternative.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gcc-8.3</filename>: Version 8.3 removed.
-                    Replaced by 9.2.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gnome-themes-standard</filename>: Only needed
-                    by gtk+ 2.x, which has been removed.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>gtk+</filename>: GTK+ 2 is obsolete and has been
-                    replaced by gtk+3.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>irda-utils</filename>: Has become obsolete.
-                    IrDA support has been removed from the Linux kernel in
-                    version 4.17 and later.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libnewt-python</filename>:
-                    <filename>libnewt</filename> Python support merged into
-                    main <filename>libnewt</filename> recipe.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libsdl</filename>: Replaced by newer
-                    <filename>libsdl2</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libx11-diet</filename>: Became obsolete.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libxx86dga</filename>: Removed obsolete client
-                    library.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libxx86misc</filename>: Removed. Library is
-                    redundant.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>linux-yocto</filename>: Version 5.0 removed,
-                    which is now redundant (5.2 / 4.19 present).
-                    </para></listitem>
-                <listitem><para>
-                    <filename>lsbinitscripts</filename>: Part of removed LSB
-                    support.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>lsb</filename>: Part of removed LSB support.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>lsbtest</filename>: Part of removed LSB support.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>openssl10</filename>: Replaced by newer
-                    <filename>openssl</filename> version 1.1.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>packagegroup-core-lsb</filename>: Part of removed
-                    LSB support.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>python-nose</filename>: Removed the Python 2.x
-                    version of the recipe.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>python-numpy</filename>: Removed the Python 2.x
-                    version of the recipe.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>python-scons</filename>: Removed the Python 2.x
-                    version of the recipe.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>source-highlight</filename>: No longer needed.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>stress</filename>: Replaced by
-                    <filename>stress-ng</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>vulkan</filename>: Split into
-                    <filename>vulkan-loader</filename>,
-                    <filename>vulkan-headers</filename>, and
-                    <filename>vulkan-tools</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>weston-conf</filename>: Functionality moved to
-                    <filename>weston-init</filename>.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-3.0-packaging-changes'>
-        <title>Packaging Changes</title>
-
-        <para>
-            The following packaging changes have occurred.
-            <itemizedlist>
-                <listitem><para>
-                    The
-                    <ulink url='https://en.wikipedia.org/wiki/GNOME_Web'>Epiphany</ulink>
-                    browser has been dropped from
-                    <filename>packagegroup-self-hosted</filename> as it has
-                    not been needed inside
-                    <filename>build-appliance-image</filename> for
-                    quite some time and was causing resource problems.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libcap-ng</filename> Python support has been
-                    moved to a separate <filename>libcap-ng-python</filename>
-                    recipe to streamline the build process when the Python
-                    bindings are not needed.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>libdrm</filename> now packages the file
-                    <filename>amdgpu.ids</filename> into a separate
-                    <filename>libdrm-amdgpu</filename> package.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>python3</filename>: The
-                    <filename>runpy</filename> module is now in the
-                    <filename>python3-core</filename> package as it is
-                    required to support the common "python3 -m" command usage.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>distcc</filename> now provides separate
-                    <filename>distcc-client</filename> and
-                    <filename>distcc-server</filename> packages as typically
-                    one or the other are needed, rather than both.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>python*-setuptools</filename> recipes now
-                    separately package the <filename>pkg_resources</filename>
-                    module in a <filename>python-pkg-resources</filename> /
-                    <filename>python3-pkg-resources</filename> package as
-                    the module is useful independent of the rest of the
-                    setuptools package.
-                    The main <filename>python-setuptools</filename> /
-                    <filename>python3-setuptools</filename> package depends
-                    on this new package so you should only need to update
-                    dependencies unless you want to take advantage of the
-                    increased granularity.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-3.0-cve-checking'>
-        <title>CVE Checking</title>
-
-        <para>
-            <filename>cve-check-tool</filename> has been functionally replaced
-            by a new <filename>cve-update-db</filename> recipe and
-            functionality built into the <filename>cve-check</filename> class.
-            The result uses NVD JSON data feeds rather than the deprecated
-            XML feeds that <filename>cve-check-tool</filename> was using,
-            supports CVSSv3 scoring, and makes other improvements.
-        </para>
-
-        <para>
-            Additionally, the <filename>CVE_CHECK_CVE_WHITELIST</filename>
-            variable has been replaced by
-            <filename>CVE_CHECK_WHITELIST</filename>.
-        </para>
-    </section>
-
-    <section id='migration-3.0-bitbake-changes'>
-        <title>Bitbake Changes</title>
-
-        <para>
-            The following BitBake changes have occurred.
-            <itemizedlist>
-                <listitem><para>
-                    <filename>addtask</filename> statements now properly
-                    validate dependent tasks.
-                    Previously, an invalid task was silently ignored.
-                    With this change, the invalid task generates a warning.
-                    </para></listitem>
-                <listitem><para>
-                    Other invalid <filename>addtask</filename> and
-                    <filename>deltask</filename> usages now trigger these
-                    warnings: "multiple target tasks arguments with
-                    addtask / deltask", and "multiple before/after clauses".
-                    </para></listitem>
-                <listitem><para>
-                    The "multiconfig" prefix is now shortened to "mc".
-                    "multiconfig" will continue to work, however it may be
-                    removed in a future release.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>bitbake -g</filename> command no longer
-                    generates a <filename>recipe-depends.dot</filename> file
-                    as the contents (i.e. a reprocessed version of
-                    <filename>task-depends.dot</filename>) were confusing.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>bb.build.FuncFailed</filename> exception,
-                    previously raised by
-                    <filename>bb.build.exec_func()</filename> when certain
-                    other exceptions have occurred, has been removed.
-                    The real underlying exceptions will be raised instead.
-                    If you have calls to
-                    <filename>bb.build.exec_func()</filename> in custom classes
-                    or <filename>tinfoil-using</filename> scripts, any
-                    references to <filename>bb.build.FuncFailed</filename>
-                    should be cleaned up.
-                    </para></listitem>
-                <listitem><para>
-                    Additionally, the
-                    <filename>bb.build.exec_func()</filename> no longer accepts
-                    the "pythonexception" parameter.
-                    The function now always raises exceptions.
-                    Remove this argument in any calls to
-                    <filename>bb.build.exec_func()</filename> in custom classes
-                    or scripts.
-                    </para></listitem>
-                <listitem><para>
-                    The
-                    <ulink url='&YOCTO_DOCS_BB_URL;#var-bb-BB_SETSCENE_VERIFY_FUNCTION2'><filename>BB_SETSCENE_VERIFY_FUNCTION2</filename></ulink>
-                    is no longer used.
-                    In the unlikely event that you have any references to it,
-                    they should be removed.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>RunQueueExecuteScenequeue</filename> and
-                    <filename>RunQueueExecuteTasks</filename> events have been
-                    removed since setscene tasks are now executed as part of
-                    the normal runqueue.
-                    Any event handling code in custom classes or scripts that
-                    handles these two events need to be updated.
-                    </para></listitem>
-                <listitem><para>
-                    The arguments passed to functions used with
-                    <ulink url='&YOCTO_DOCS_BB_URL;#var-bb-BB_HASHCHECK_FUNCTION'><filename>BB_HASHCHECK_FUNCTION</filename></ulink>
-                    have changed.
-                    If you are using your own custom hash check function, see
-                    <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=40a5e193c4ba45c928fccd899415ea56b5417725'></ulink>
-                    for details.
-                    </para></listitem>
-                <listitem><para>
-                    Task specifications in <filename>BB_TASKDEPDATA</filename>
-                    and class implementations used in signature generator
-                    classes now use "&lt;fn&gt;:&lt;task&gt;" everywhere rather than
-                    the "." delimiter that was being used in some places.
-                    This change makes it consistent with all areas in the code.
-                    Custom signature generator classes and code that reads
-                    <filename>BB_TASKDEPDATA</filename> need to be updated to
-                    use ':' as a separator rather than '.'.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-3.0-sanity-checks'>
-        <title>Sanity Checks</title>
-
-        <para>
-            The following sanity check changes occurred.
-            <itemizedlist>
-                <listitem><para>
-                    <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>
-                    is now checked for usage of two problematic items:
-                    <itemizedlist>
-                        <listitem><para>
-                            "${PN}" prefix/suffix use - Warnings always appear
-                            if ${PN} is used.
-                            You must fix the issue regardless of whether
-                            multiconfig or anything else that would cause
-                            prefixing/suffixing to happen.
-                            </para></listitem>
-                        <listitem><para>
-                            Github archive tarballs - these are not guaranteed
-                            to be stable.
-                            Consequently, it is likely that the tarballs will
-                            be refreshed and thus the SRC_URI checksums
-                            will fail to apply.
-                            It is recommended that you fetch either an official
-                            release tarball or a specific revision from the
-                            actual Git repository instead.
-                            </para></listitem>
-                    </itemizedlist>
-                    Either one of these items now trigger a warning by default.
-                    If you wish to disable this check, remove
-                    <filename>src-uri-bad</filename> from
-                    <link linkend='var-WARN_QA'><filename>WARN_QA</filename></link>.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>file-rdeps</filename> runtime dependency
-                    check no longer expands
-                    <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>
-                    recursively as there is no mechanism to ensure they can be
-                    fully computed, and thus races sometimes result in errors
-                    either showing up or not.
-                    Thus, you might now see errors for missing runtime
-                    dependencies that were previously satisfied recursively.
-                    Here is an example: package A contains a shell script
-                    starting with <filename>#!/bin/bash</filename> but has no
-                    dependency on bash.
-                    However, package A depends on package B, which does depend
-                    on bash.
-                    You need to add the missing dependency or dependencies to
-                    resolve the warning.
-                    </para></listitem>
-                <listitem><para>
-                    Setting <filename>DEPENDS_${PN}</filename> anywhere
-                    (i.e. typically in a recipe) now triggers an error.
-                    The error is triggered because
-                    <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>
-                    is not a package-specific variable unlike RDEPENDS.
-                    You should set <filename>DEPENDS</filename> instead.
-                    </para></listitem>
-                <listitem><para>
-                    systemd currently does not work well with the musl C
-                    library because only upstream officially supports linking
-                    the library with glibc.
-                    Thus, a warning is shown when building systemd in
-                    conjunction with musl.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-3.0-miscellaneous-changes'>
-        <title>Miscellaneous Changes</title>
-
-        <para>
-            The following miscellaneous changes have occurred.
-            <itemizedlist>
-                <listitem><para>
-                    The <filename>gnome</filename>
-                    class has been removed because it now does very little.
-                    You should update recipes that previously inherited this
-                    class to do the following:
-                    <literallayout class='monospaced'>
-     inherit gnomebase gtk-icon-cache gconf mime
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    The
-                    <filename>meta/recipes-kernel/linux/linux-dtb.inc</filename>
-                    file has been removed.
-                    This file was previously deprecated in favor of setting
-                    <link linkend='var-KERNEL_DEVICETREE'><filename>KERNEL_DEVICETREE</filename></link>
-                    in any kernel recipe and only produced a warning.
-                    Remove any <filename>include</filename> or
-                    <filename>require</filename> statements pointing to this
-                    file.
-                    </para></listitem>
-                <listitem><para>
-                    <link linkend='var-TARGET_CFLAGS'><filename>TARGET_CFLAGS</filename></link>,
-                    <link linkend='var-TARGET_CPPFLAGS'><filename>TARGET_CPPFLAGS</filename></link>,
-                    <link linkend='var-TARGET_CXXFLAGS'><filename>TARGET_CXXFLAGS</filename></link>,
-                    and
-                    <link linkend='var-TARGET_LDFLAGS'><filename>TARGET_LDFLAGS</filename></link>
-                    are no longer exported to the external environment.
-                    This change did not require any changes to core recipes,
-                    which is a good indicator that no changes will be
-                    required.
-                    However, if for some reason the software being built by one
-                    of your recipes is expecting these variables to be set,
-                    then building the recipe will fail.
-                    In such cases, you must either export the variable or
-                    variables in the recipe or change the scripts so that
-                    exporting is not necessary.
-                    </para></listitem>
-                <listitem><para>
-                    You must change the host distro identifier used in
-                    <link linkend='var-NATIVELSBSTRING'><filename>NATIVELSBSTRING</filename></link>
-                    to use all lowercase characters even if it does not contain
-                    a version number.
-                    This change is necessary only if you are not using
-                    <filename>uninative</filename> and
-                    <link linkend='var-SANITY_TESTED_DISTROS'><filename>SANITY_TESTED_DISTROS</filename></link>.
-                    </para></listitem>
-                <listitem><para>
-                    In the <filename>base-files</filename> recipe, writing the
-                    hostname into <filename>/etc/hosts</filename> and
-                    <filename>/etc/hostname</filename> is now done within the
-                    main
-                    <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-                    function rather than in the
-                    <filename>do_install_basefilesissue</filename> function.
-                    The reason for the change is because
-                    <filename>do_install_basefilesissue</filename> is more
-                    easily overridden without having to duplicate the hostname
-                    functionality.
-                    If you have done the latter (e.g. in a
-                    <filename>base-files</filename> bbappend), then you should
-                    remove it from your customized
-                    <filename>do_install_basefilesissue</filename> function.
-                    </para></listitem>
-                <listitem><para>
-                    The <filename>wic --expand</filename> command now uses
-                    commas to separate "key:value" pairs rather than hyphens.
-                    <note>
-                        The wic command-line help is not updated.
-                    </note>
-                    You must update any scripts or commands where you use
-                    <filename>wic --expand</filename> with multiple
-                    "key:value" pairs.
-                    </para></listitem>
-                <listitem><para>
-                    UEFI image variable settings have been moved from various
-                    places to a central
-                    <filename>conf/image-uefi.conf</filename>.
-                    This change should not influence any existing configuration
-                    as the <filename>meta/conf/image-uefi.conf</filename>
-                    in the core metadata sets defaults that can be overridden
-                    in the same manner as before.
-                    </para></listitem>
-                <listitem><para>
-                    <filename>conf/distro/include/world-broken.inc</filename>
-                    has been removed.
-                    For cases where certain recipes need to be disabled when
-                    using the musl C library, these recipes now have
-                    <filename>COMPATIBLE_HOST_libc-musl</filename> set with a
-                    comment that explains why.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-
-<section id='moving-to-the-yocto-project-3.1-release'>
-    <title>Moving to the Yocto Project 3.1 Release</title>
-
-    <para>
-        This section provides migration information for moving to the
-        Yocto Project 3.1 Release from the prior release.
-    </para>
-
-    <section id='migration-3.1-minimum-system-requirements'>
-        <title>Minimum system requirements</title>
-
-        <para>
-            The following versions / requirements of build host components have been updated:
-            <itemizedlist>
-                <listitem><para>gcc 5.0</para></listitem>
-                <listitem><para>python 3.5</para></listitem>
-                <listitem><para>tar 1.28</para></listitem>
-                <listitem><para><filename>rpcgen</filename> is now required on the host (part of the <filename>libc-dev-bin</filename> package on Ubuntu, Debian and related distributions, and the <filename>glibc</filename> package on RPM-based distributions).</para></listitem>
-            </itemizedlist>
-            
-            Additionally, the <filename>makeinfo</filename> and <filename>pod2man</filename>
-            tools are <emphasis>no longer</emphasis> required on the host.
-        </para>
-    </section>
-
-    <section id='migration-3.1-mpc8315e-rdb-removed'>
-        <title>mpc8315e-rdb machine removed</title>
-
-        <para>
-            The MPC8315E-RDB machine is old/obsolete and unobtainable, thus given the maintenance burden
-            the <filename>mpc8315e-rdb</filename> machine configuration that supported it has been removed
-            in this release. The removal does leave a gap in official PowerPC reference hardware
-            support; this may change in future if a suitable machine with accompanying support resources
-            is found.
-        </para>
-    </section>
-    
-    <section id='migration-3.1-python-2-removed'>
-        <title>Python 2 removed</title>
-
-        <para>
-            Due to the expiration of upstream support in January 2020, support for Python 2 has now been removed; it is recommended that you use Python 3 instead. If absolutely needed there is a meta-python2 community layer containing Python 2, related classes and various Python 2-based modules, however it should not be considered as supported.
-        </para>
-    </section>
-
-    <section id='migration-3.1-reproducible-builds'>
-        <title>Reproducible builds now enabled by default</title>
-
-        <para>
-            In order to avoid unnecessary differences in output files (aiding binary reproducibility), the Poky distribution configuration (<filename><link linkend='var-DISTRO'>DISTRO</link> = "poky"</filename>) now inherits the <filename>reproducible_build</filename> class by default.
-        </para>
-    </section>
-    
-    <section id='migration-3.1-ptest-feature-impact'>
-        <title>Impact of ptest feature is now more significant</title>
-
-        <para>
-            The Poky distribution configuration (<filename><link linkend='var-DISTRO'>DISTRO</link> = "poky"</filename>) enables ptests by default to enable runtime testing of various components. In this release, a dependency needed to be added that has resulted in a significant increase in the number of components that will be built just when building a simple image such as core-image-minimal. If you do not need runtime tests enabled for core components, then it is recommended that you remove "ptest" from <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link> to save a significant amount of build time e.g. by adding the following in your configuration:
-
-            <literallayout class='monospaced'>
-      DISTRO_FEATURES_remove = "ptest"
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='migration-3.1-removed-recipes'>
-        <title>Removed recipes</title>
-
-        <para>
-            The following recipes have been removed:
-
-            <itemizedlist>
-                <listitem><para><filename>chkconfig</filename>: obsolete</para></listitem>
-                <listitem><para><filename>console-tools</filename>: obsolete</para></listitem>
-                <listitem><para><filename>enchant</filename>: replaced by <filename>enchant2</filename></para></listitem>
-                <listitem><para><filename>foomatic-filters</filename>: obsolete</para></listitem>
-                <listitem><para><filename>libidn</filename>: no longer needed, moved to meta-oe</para></listitem>
-                <listitem><para><filename>libmodulemd</filename>: replaced by <filename>libmodulemd-v1</filename></para></listitem>
-                <listitem><para><filename>linux-yocto</filename>: drop 4.19, 5.2 version recipes (5.4 now provided)</para></listitem>
-                <listitem><para><filename>nspr</filename>: no longer needed, moved to meta-oe</para></listitem>
-                <listitem><para><filename>nss</filename>: no longer needed, moved to meta-oe</para></listitem>
-                <listitem><para><filename>python</filename>: Python 2 removed (Python 3 preferred)</para></listitem>
-                <listitem><para><filename>python-setuptools</filename>: Python 2 version removed (python3-setuptools preferred)</para></listitem>
-                <listitem><para><filename>sysprof</filename>: no longer needed, moved to meta-oe</para></listitem>
-                <listitem><para><filename>texi2html</filename>: obsolete</para></listitem>
-                <listitem><para><filename>u-boot-fw-utils</filename>: functionally replaced by <filename>libubootenv</filename></para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-3.1-features-check'>
-        <title>features_check class replaces distro_features_check</title>
-
-        <para>
-            The <filename>distro_features_check</filename> class has had its functionality expanded, now supporting <filename>ANY_OF_MACHINE_FEATURES</filename>, <filename>REQUIRED_MACHINE_FEATURES</filename>, <filename>CONFLICT_MACHINE_FEATURES</filename>, <filename>ANY_OF_COMBINED_FEATURES</filename>, <filename>REQUIRED_COMBINED_FEATURES</filename>, <filename>CONFLICT_COMBINED_FEATURES</filename>. As a result the class has now been renamed to <filename>features_check</filename>; the <filename>distro_features_check</filename> class still exists but generates a warning and redirects to the new class. In preparation for a future removal of the old class it is recommended that you update recipes currently inheriting <filename>distro_features_check</filename> to inherit <filename>features_check</filename> instead.
-        </para>
-    </section>
-
-    <section id='migration-3.1-removed-classes'>
-        <title>Removed classes</title>
-
-        <para>
-            The following classes have been removed:
-
-            <itemizedlist>
-                <listitem><para><filename>distutils-base</filename>: moved to meta-python2</para></listitem>
-                <listitem><para><filename>distutils</filename>: moved to meta-python2</para></listitem>
-                <listitem><para><filename>libc-common</filename>: merged into the glibc recipe as nothing else used it.</para></listitem>
-                <listitem><para><filename>python-dir</filename>: moved to meta-python2</para></listitem>
-                <listitem><para><filename>pythonnative</filename>: moved to meta-python2</para></listitem>
-                <listitem><para><filename>setuptools</filename>: moved to meta-python2</para></listitem>
-                <listitem><para><filename>tinderclient</filename>: dropped as it was obsolete.</para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='migration-3.1-src-uri-checksums'>
-        <title>SRC_URI checksum behaviour</title>
-
-        <para>
-            Previously, recipes by tradition included both SHA256 and MD5 checksums for remotely fetched files in <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>, even though only one is actually mandated. However, the MD5 checksum does not add much given its inherent weakness; thus when a checksum fails only the SHA256 sum will now be printed. The md5sum will still be verified if it is specified.
-        </para>
-    </section>
-
-
-    <section id='migration-3.1-npm'>
-        <title>npm fetcher changes</title>
-
-        <para>
-            The npm fetcher has been completely reworked in this release. The npm fetcher now only fetches the package source itself and no longer the dependencies; there is now also an npmsw fetcher which explicitly fetches the shrinkwrap file and the dependencies. This removes the slightly awkward <filename>NPM_LOCKDOWN</filename> and <filename>NPM_SHRINKWRAP</filename> variables which pointed to local files; the lockdown file is no longer needed at all. Additionally, the package name in <filename>npm://</filename> entries in <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link> is now specified using a <filename>package</filename> parameter instead of the earlier <filename>name</filename> which overlapped with the generic <filename>name</filename> parameter. All recipes using the npm fetcher will need to be changed as a result. 
-        </para>
-        <para>
-            An example of the new scheme:
-            <literallayout class='monospaced'>
-SRC_URI = "npm://registry.npmjs.org;package=array-flatten;version=1.1.1 \
-           npmsw://${THISDIR}/npm-shrinkwrap.json"
-            </literallayout>
-            Another example where the sources are fetched from git rather than an npm repository:
-            <literallayout class='monospaced'>
-SRC_URI = "git://github.com/foo/bar.git;protocol=https \
-           npmsw://${THISDIR}/npm-shrinkwrap.json"
-            </literallayout>
-        </para>
-        <para>
-            devtool and recipetool have also been updated to match with the npm fetcher changes. Other than producing working and more complete recipes for npm sources, there is also a minor change to the command line for devtool: the <filename>--fetch-dev</filename> option has been renamed to <filename>--npm-dev</filename> as it is npm-specific.
-        </para>
-    </section>
-    
-    
-    <section id='migration-3.1-packaging-changes'>
-        <title>Packaging changes</title>
-
-        <para>
-            <itemizedlist>
-                <listitem><para><filename>intltool</filename> has been removed from <filename>packagegroup-core-sdk</filename> as it is rarely needed to build modern software - gettext can do most of the things it used to be needed for. <filename>intltool</filename> has also been removed from <filename>packagegroup-core-self-hosted</filename> as it is not needed to for standard builds.</para></listitem>
-                <listitem><para>git: <filename>git-am</filename>, <filename>git-difftool</filename>, <filename>git-submodule</filename>, and <filename>git-request-pull</filename> are no longer perl-based, so are now installed with the main <filename>git</filename> package instead of within <filename>git-perltools</filename>.</para></listitem>
-                <listitem><para>The <filename>ldconfig</filename> binary built as part of glibc has now been moved to its own <filename>ldconfig</filename> package (note no <filename>glibc-</filename> prefix). This package is in the <link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link> of the main <filename>glibc</filename> package if <filename>ldconfig</filename> is present in <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>.</para></listitem>
-                <listitem><para><filename>libevent</filename> now splits each shared library into its own package (as Debian does). Since these are shared libraries and will be pulled in through the normal shared library dependency handling, there should be no impact to existing configurations other than less unnecessary libraries being installed in some cases.</para></listitem>
-                <listitem><para>linux-firmware now has a new package for <filename>bcm4366c</filename> and includes available NVRAM config files into the <filename>bcm43340</filename>, <filename>bcm43362</filename>, <filename>bcm43430</filename> and <filename>bcm4356-pcie</filename> packages.</para></listitem>
-                <listitem><para><filename>harfbuzz</filename> now splits the new <filename>libharfbuzz-subset.so</filename> library into its own package to reduce the main package size in cases where <filename>libharfbuzz-subset.so</filename> is not needed.</para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-    
-    <section id='migration-3.1-package-qa-warnings'>
-        <title>Additional warnings</title>
-
-        <para>
-            Warnings will now be shown at <filename>do_package_qa</filename> time in the following circumstances:
-            
-            <itemizedlist>
-                <listitem><para>A recipe installs <filename>.desktop</filename> files containing <filename>MimeType</filename> keys but does not inherit the new <filename>mime-xdg</filename> class</para></listitem>
-                <listitem><para>A recipe installs <filename>.xml</filename> files into <filename>${datadir}/mime/packages</filename> but does not inherit the <filename>mime</filename> class</para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-        
-    <section id='migration-3.1-x86-live-wic'>
-        <title><filename>wic</filename> image type now used instead of <filename>live</filename> by default for x86</title>
-
-        <para>
-            <filename>conf/machine/include/x86-base.inc</filename> (inherited by most x86 machine configurations) now specifies <filename>wic</filename> instead of <filename>live</filename> by default in <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>. The <filename>live</filename> image type will likely be removed in a future release so it is recommended that you use <filename>wic</filename> instead.
-        </para>
-    </section>
-                
-    <section id='migration-3.1-misc'>
-        <title>Miscellaneous changes</title>
-
-        <para>
-            <itemizedlist>
-                <listitem><para>The undocumented <filename>SRC_DISTRIBUTE_LICENSES</filename> variable has now been removed in favour of a new <filename>AVAILABLE_LICENSES</filename> variable which is dynamically set based upon license files found in <filename>${COMMON_LICENSE_DIR}</filename> and <filename>${LICENSE_PATH}</filename>.</para></listitem>
-                <listitem><para>The tune definition for big-endian microblaze machines is now <filename>microblaze</filename> instead of <filename>microblazeeb</filename>.</para></listitem>
-                <listitem><para><filename>newlib</filename> no longer has built-in syscalls. <filename>libgloss</filename> should then provide the syscalls, <filename>crt0.o</filename> and other functions that are no longer part of <filename>newlib</filename> itself. If you are using <filename>TCLIBC = "newlib"</filename> this now means that you must link applications with both <filename>newlib</filename> and <filename>libgloss</filename>, whereas before <filename>newlib</filename> would run in many configurations by itself.</para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-</section>
-
-
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/ref-manual/ref-classes.rst b/poky/documentation/ref-manual/ref-classes.rst
index b007e34..756df2a 100644
--- a/poky/documentation/ref-manual/ref-classes.rst
+++ b/poky/documentation/ref-manual/ref-classes.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *******
 Classes
diff --git a/poky/documentation/ref-manual/ref-classes.xml b/poky/documentation/ref-manual/ref-classes.xml
deleted file mode 100644
index 1dcd5fd..0000000
--- a/poky/documentation/ref-manual/ref-classes.xml
+++ /dev/null
@@ -1,3974 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='ref-classes'>
-<title>Classes</title>
-
-<para>
-    Class files are used to abstract common functionality and share it amongst
-    multiple recipe (<filename>.bb</filename>) files.
-    To use a class file, you simply make sure the recipe inherits the class.
-    In most cases, when a recipe inherits a class it is enough to enable its
-    features.
-    There are cases, however, where in the recipe you might need to set
-    variables or override some default behavior.
-</para>
-
-<para>
-    Any <link linkend='metadata'>Metadata</link> usually
-    found in a recipe can also be placed in a class file.
-    Class files are identified by the extension <filename>.bbclass</filename>
-    and are usually placed in a <filename>classes/</filename> directory beneath
-    the <filename>meta*/</filename> directory found in the
-    <link linkend='source-directory'>Source Directory</link>.
-    Class files can also be pointed to by
-    <link linkend='var-BUILDDIR'><filename>BUILDDIR</filename></link>
-    (e.g. <filename>build/</filename>) in the same way as
-    <filename>.conf</filename> files in the <filename>conf</filename> directory.
-    Class files are searched for in
-    <link linkend='var-BBPATH'><filename>BBPATH</filename></link>
-    using the same method by which <filename>.conf</filename> files are
-    searched.
-</para>
-
-<para>
-    This chapter discusses only the most useful and important classes.
-    Other classes do exist within the <filename>meta/classes</filename>
-    directory in the Source Directory.
-    You can reference the <filename>.bbclass</filename> files directly
-    for more information.
-</para>
-
-<section id='ref-classes-allarch'>
-    <title><filename>allarch.bbclass</filename></title>
-
-    <para>
-        The <filename>allarch</filename> class is inherited
-        by recipes that do not produce architecture-specific output.
-        The class disables functionality that is normally needed for recipes
-        that produce executable binaries (such as building the cross-compiler
-        and a C library as pre-requisites, and splitting out of debug symbols
-        during packaging).
-        <note>
-            <para>Unlike some distro recipes (e.g. Debian), OpenEmbedded recipes
-            that produce packages that depend on tunings through use of the
-            <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>
-            and
-            <link linkend='var-TUNE_PKGARCH'><filename>TUNE_PKGARCH</filename></link>
-            variables, should never be configured for all architectures
-            using <filename>allarch</filename>.
-            This is the case even if the recipes do not produce
-            architecture-specific output.</para>
-            <para>Configuring such recipes for all architectures causes the
-            <link linkend='ref-tasks-package_write_deb'><filename>do_package_write_*</filename></link>
-            tasks to have different signatures for the machines with different
-            tunings.
-            Additionally, unnecessary rebuilds occur every time an
-            image for a different <filename>MACHINE</filename> is built
-            even when the recipe never changes.</para>
-        </note>
-    </para>
-
-    <para>
-        By default, all recipes inherit the
-        <link linkend='ref-classes-base'><filename>base</filename></link> and
-        <link linkend='ref-classes-package'><filename>package</filename></link>
-        classes, which enable functionality
-        needed for recipes that produce executable output.
-        If your recipe, for example, only produces packages that contain
-        configuration files, media files, or scripts (e.g. Python and Perl),
-        then it should inherit the <filename>allarch</filename> class.
-    </para>
-</section>
-
-<section id='ref-classes-archiver'>
-    <title><filename>archiver.bbclass</filename></title>
-
-    <para>
-        The <filename>archiver</filename> class supports releasing
-        source code and other materials with the binaries.
-    </para>
-
-    <para>
-        For more details on the source archiver, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#maintaining-open-source-license-compliance-during-your-products-lifecycle'>Maintaining Open Source License Compliance During Your Product's Lifecycle</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-        You can also see the
-        <link linkend='var-ARCHIVER_MODE'><filename>ARCHIVER_MODE</filename></link>
-        variable for information about the variable flags (varflags)
-        that help control archive creation.
-    </para>
-</section>
-
-<section id='ref-classes-autotools'>
-    <title><filename>autotools*.bbclass</filename></title>
-
-    <para>
-        The <filename>autotools*</filename> classes support Autotooled
-        packages.
-    </para>
-
-    <para>
-        The <filename>autoconf</filename>, <filename>automake</filename>,
-        and <filename>libtool</filename> packages bring standardization.
-        This class defines a set of tasks (e.g.
-        <filename>configure</filename>, <filename>compile</filename> and
-        so forth) that
-        work for all Autotooled packages.
-        It should usually be enough to define a few standard variables
-        and then simply <filename>inherit autotools</filename>.
-        These classes can also work with software that emulates Autotools.
-        For more information, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#new-recipe-autotooled-package'>Autotooled Package</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-
-    <para>
-        By default, the <filename>autotools*</filename> classes
-        use out-of-tree builds (i.e.
-        <filename>autotools.bbclass</filename> building with
-        <filename>B != S</filename>).
-    </para>
-
-    <para>
-        If the software being built by a recipe does not support
-        using out-of-tree builds, you should have the recipe inherit the
-        <filename>autotools-brokensep</filename> class.
-        The <filename>autotools-brokensep</filename> class behaves the same
-        as the <filename>autotools</filename> class but builds with
-        <link linkend='var-B'><filename>B</filename></link> ==
-        <link linkend='var-S'><filename>S</filename></link>.
-        This method is useful when out-of-tree build support is either not
-        present or is broken.
-        <note>
-            It is recommended that out-of-tree support be fixed and used
-            if at all possible.
-        </note>
-    </para>
-
-    <para>
-        It's useful to have some idea of how the tasks defined by
-        the <filename>autotools*</filename> classes work and what they do
-        behind the scenes.
-        <itemizedlist>
-            <listitem><para><link linkend='ref-tasks-configure'><filename>do_configure</filename></link> -
-                Regenerates the
-                configure script (using <filename>autoreconf</filename>) and
-                then launches it with a standard set of arguments used during
-                cross-compilation.
-                You can pass additional parameters to
-                <filename>configure</filename> through the
-                <filename><link linkend='var-EXTRA_OECONF'>EXTRA_OECONF</link></filename>
-                or
-                <link linkend='var-PACKAGECONFIG_CONFARGS'><filename>PACKAGECONFIG_CONFARGS</filename></link>
-                variables.
-                </para></listitem>
-            <listitem><para><link linkend='ref-tasks-compile'><filename>do_compile</filename></link> -
-                Runs <filename>make</filename> with arguments that specify the
-                compiler and linker.
-                You can pass additional arguments through
-                the <filename><link linkend='var-EXTRA_OEMAKE'>EXTRA_OEMAKE</link></filename>
-                variable.
-                </para></listitem>
-            <listitem><para><link linkend='ref-tasks-install'><filename>do_install</filename></link> -
-                Runs <filename>make install</filename> and passes in
-                <filename>${</filename><link linkend='var-D'><filename>D</filename></link><filename>}</filename>
-                as <filename>DESTDIR</filename>.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='ref-classes-base'>
-    <title><filename>base.bbclass</filename></title>
-
-    <para>
-        The <filename>base</filename> class is special in that every
-        <filename>.bb</filename> file implicitly inherits the class.
-        This class contains definitions for standard basic
-        tasks such as fetching, unpacking, configuring (empty by default),
-        compiling (runs any <filename>Makefile</filename> present), installing
-        (empty by default) and packaging (empty by default).
-        These classes are often overridden or extended by other classes
-        such as the
-        <link linkend='ref-classes-autotools'><filename>autotools</filename></link>
-        class or the
-        <link linkend='ref-classes-package'><filename>package</filename></link>
-        class.
-    </para>
-
-    <para>
-        The class also contains some commonly used functions such as
-        <filename>oe_runmake</filename>, which runs
-        <filename>make</filename> with the arguments specified in
-        <link linkend='var-EXTRA_OEMAKE'><filename>EXTRA_OEMAKE</filename></link>
-        variable as well as the arguments passed directly to
-        <filename>oe_runmake</filename>.
-    </para>
-</section>
-
-<section id='ref-classes-bash-completion'>
-    <title><filename>bash-completion.bbclass</filename></title>
-
-    <para>
-        Sets up packaging and dependencies appropriate for recipes that
-        build software that includes bash-completion data.
-    </para>
-</section>
-
-<section id='ref-classes-bin-package'>
-    <title><filename>bin_package.bbclass</filename></title>
-
-    <para>
-        The <filename>bin_package</filename> class is a
-        helper class for recipes that extract the contents of a binary package
-        (e.g. an RPM) and install those contents rather than building the
-        binary from source.
-        The binary package is extracted and new packages in the configured
-        output package format are created.
-        Extraction and installation of proprietary binaries is a good example
-        use for this class.
-        <note>
-            For RPMs and other packages that do not contain a subdirectory,
-            you should specify an appropriate fetcher parameter to point to
-            the subdirectory.
-            For example, if BitBake is using the Git fetcher
-            (<filename>git://</filename>), the "subpath" parameter limits
-            the checkout to a specific subpath of the tree.
-            Here is an example where <filename>${BP}</filename> is used so that
-            the files are extracted into the subdirectory expected by the
-            default value of
-            <link linkend='var-S'><filename>S</filename></link>:
-            <literallayout class='monospaced'>
-     SRC_URI = "git://example.com/downloads/somepackage.rpm;subpath=${BP}"
-            </literallayout>
-            See the
-            "<ulink url='&YOCTO_DOCS_BB_URL;#bb-fetchers'>Fetchers</ulink>"
-            section in the BitBake User Manual for more information on
-            supported BitBake Fetchers.
-        </note>
-    </para>
-</section>
-
-<section id='ref-classes-binconfig'>
-    <title><filename>binconfig.bbclass</filename></title>
-
-    <para>
-        The <filename>binconfig</filename> class helps to correct paths in
-        shell scripts.
-    </para>
-
-    <para>
-        Before <filename>pkg-config</filename> had become widespread, libraries
-        shipped shell scripts to give information about the libraries and
-        include paths needed to build software (usually named
-        <filename>LIBNAME-config</filename>).
-        This class assists any recipe using such scripts.
-    </para>
-
-    <para>
-        During staging, the OpenEmbedded build system installs such scripts
-        into the <filename>sysroots/</filename> directory.
-        Inheriting this class results in all paths in these scripts being
-        changed to point into the <filename>sysroots/</filename> directory so
-        that all builds that use the script use the correct directories
-        for the cross compiling layout.
-        See the
-        <link linkend='var-BINCONFIG_GLOB'><filename>BINCONFIG_GLOB</filename></link>
-        variable for more information.
-    </para>
-</section>
-
-<section id='ref-classes-binconfig-disabled'>
-    <title><filename>binconfig-disabled.bbclass</filename></title>
-
-    <para>
-        An alternative version of the
-        <link linkend='ref-classes-binconfig'><filename>binconfig</filename></link>
-        class, which disables binary configuration scripts by making them
-        return an error in favor of using <filename>pkg-config</filename>
-        to query the information.
-        The scripts to be disabled should be specified using the
-        <link linkend='var-BINCONFIG'><filename>BINCONFIG</filename></link>
-        variable within the recipe inheriting the class.
-    </para>
-</section>
-
-<section id='ref-classes-blacklist'>
-    <title><filename>blacklist.bbclass</filename></title>
-
-    <para>
-        The <filename>blacklist</filename> class prevents
-        the OpenEmbedded build system from building specific recipes
-        (blacklists them).
-        To use this class, inherit the class globally and set
-        <link linkend='var-PNBLACKLIST'><filename>PNBLACKLIST</filename></link>
-        for each recipe you wish to blacklist.
-        Specify the <link linkend='var-PN'><filename>PN</filename></link>
-        value as a variable flag (varflag) and provide a reason, which is
-        reported, if the package is requested to be built as the value.
-        For example, if you want to blacklist a recipe called "exoticware",
-        you add the following to your <filename>local.conf</filename>
-        or distribution configuration:
-        <literallayout class='monospaced'>
-     INHERIT += "blacklist"
-     PNBLACKLIST[exoticware] = "Not supported by our organization."
-        </literallayout>
-    </para>
-</section>
-
-<section id='ref-classes-buildhistory'>
-    <title><filename>buildhistory.bbclass</filename></title>
-
-    <para>
-        The <filename>buildhistory</filename> class records a
-        history of build output metadata, which can be used to detect possible
-        regressions as well as used for analysis of the build output.
-        For more information on using Build History, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#maintaining-build-output-quality'>Maintaining Build Output Quality</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-</section>
-
-<section id='ref-classes-buildstats'>
-    <title><filename>buildstats.bbclass</filename></title>
-
-    <para>
-        The <filename>buildstats</filename> class records
-        performance statistics about each task executed during the build
-        (e.g. elapsed time, CPU usage, and I/O usage).
-    </para>
-
-    <para>
-        When you use this class, the output goes into the
-        <link linkend='var-BUILDSTATS_BASE'><filename>BUILDSTATS_BASE</filename></link>
-        directory, which defaults to <filename>${TMPDIR}/buildstats/</filename>.
-        You can analyze the elapsed time using
-        <filename>scripts/pybootchartgui/pybootchartgui.py</filename>, which
-        produces a cascading chart of the entire build process and can be
-        useful for highlighting bottlenecks.
-    </para>
-
-    <para>
-        Collecting build statistics is enabled by default through the
-        <link linkend='var-USER_CLASSES'><filename>USER_CLASSES</filename></link>
-        variable from your <filename>local.conf</filename> file.
-        Consequently, you do not have to do anything to enable the class.
-        However, if you want to disable the class, simply remove "buildstats"
-        from the <filename>USER_CLASSES</filename> list.
-    </para>
-</section>
-
-<section id='ref-classes-buildstats-summary'>
-    <title><filename>buildstats-summary.bbclass</filename></title>
-
-    <para>
-        When inherited globally, prints statistics at the end of the build
-        on sstate re-use.
-        In order to function, this class requires the
-        <link linkend='ref-classes-buildstats'><filename>buildstats</filename></link>
-        class be enabled.
-    </para>
-</section>
-
-<section id='ref-classes-ccache'>
-    <title><filename>ccache.bbclass</filename></title>
-
-    <para>
-        The <filename>ccache</filename> class enables the C/C++ Compiler Cache
-        for the build.
-        This class is used to give a minor performance boost during the build.
-        However, using the class can lead to unexpected side-effects.
-        Thus, it is recommended that you do not use this class.
-        See <ulink url='http://ccache.samba.org/'></ulink> for information on
-        the C/C++ Compiler Cache.
-    </para>
-</section>
-
-<section id='ref-classes-chrpath'>
-    <title><filename>chrpath.bbclass</filename></title>
-
-    <para>
-        The <filename>chrpath</filename> class
-        is a wrapper around the "chrpath" utility, which is used during the
-        build process for <filename>nativesdk</filename>,
-        <filename>cross</filename>, and
-        <filename>cross-canadian</filename> recipes to change
-        <filename>RPATH</filename> records within binaries in order to make
-        them relocatable.
-    </para>
-</section>
-
-<section id='ref-classes-clutter'>
-    <title><filename>clutter.bbclass</filename></title>
-
-    <para>
-        The <filename>clutter</filename> class consolidates the
-        major and minor version naming and other common items used by Clutter
-        and related recipes.
-        <note>
-            Unlike some other classes related to specific libraries, recipes
-            building other software that uses Clutter do not need to
-            inherit this class unless they use the same recipe versioning
-            scheme that the Clutter and related recipes do.
-        </note>
-    </para>
-</section>
-
-<section id='ref-classes-cmake'>
-    <title><filename>cmake.bbclass</filename></title>
-
-    <para>
-        The <filename>cmake</filename> class allows for recipes that need to
-        build software using the
-        <ulink url='https://cmake.org/overview/'>CMake</ulink> build system.
-        You can use the
-        <link linkend='var-EXTRA_OECMAKE'><filename>EXTRA_OECMAKE</filename></link>
-        variable to specify additional configuration options to be passed
-        using the <filename>cmake</filename> command line.
-    </para>
-
-    <para>
-        On the occasion that you would be installing custom CMake toolchain
-        files supplied by the application being built, you should install them
-        to the preferred CMake Module directory:
-        <filename>${D}${datadir}/cmake/</filename> Modules during
-        <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>.
-    </para>
-</section>
-
-<section id='ref-classes-cml1'>
-    <title><filename>cml1.bbclass</filename></title>
-
-    <para>
-        The <filename>cml1</filename> class provides basic support for the
-        Linux kernel style build configuration system.
-    </para>
-</section>
-
-<section id='ref-classes-compress_doc'>
-    <title><filename>compress_doc.bbclass</filename></title>
-
-    <para>
-        Enables compression for man pages and info pages.
-        This class is intended to be inherited globally.
-        The default compression mechanism is gz (gzip) but you can
-        select an alternative mechanism by setting the
-        <link linkend='var-DOC_COMPRESS'><filename>DOC_COMPRESS</filename></link>
-        variable.
-    </para>
-</section>
-
-<section id='ref-classes-copyleft_compliance'>
-    <title><filename>copyleft_compliance.bbclass</filename></title>
-
-    <para>
-        The <filename>copyleft_compliance</filename> class
-        preserves source code for the purposes of license compliance.
-        This class is an alternative to the <filename>archiver</filename>
-        class and is still used by some users even though it has been
-        deprecated in favor of the
-        <link linkend='ref-classes-archiver'><filename>archiver</filename></link>
-        class.
-    </para>
-</section>
-
-<section id='ref-classes-copyleft_filter'>
-    <title><filename>copyleft_filter.bbclass</filename></title>
-
-    <para>
-        A class used by the
-        <link linkend='ref-classes-archiver'><filename>archiver</filename></link>
-        and
-        <link linkend='ref-classes-copyleft_compliance'><filename>copyleft_compliance</filename></link>
-        classes for filtering licenses.
-        The <filename>copyleft_filter</filename> class is an internal class
-        and is not intended to be used directly.
-    </para>
-</section>
-
-<section id='ref-classes-core-image'>
-    <title><filename>core-image.bbclass</filename></title>
-
-    <para>
-        The <filename>core-image</filename> class
-        provides common definitions for the
-        <filename>core-image-*</filename> image recipes, such as support for
-        additional
-        <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>.
-    </para>
-</section>
-
-<section id='ref-classes-cpan'>
-    <title><filename>cpan*.bbclass</filename></title>
-
-    <para>
-        The <filename>cpan*</filename> classes support Perl modules.
-    </para>
-
-    <para>
-        Recipes for Perl modules are simple.
-        These recipes usually only need to point to the source's archive and
-        then inherit the proper class file.
-        Building is split into two methods depending on which method the module
-        authors used.
-        <itemizedlist>
-            <listitem><para>Modules that use old
-                <filename>Makefile.PL</filename>-based build system require
-                <filename>cpan.bbclass</filename> in their recipes.
-                </para></listitem>
-            <listitem><para>Modules that use
-                <filename>Build.PL</filename>-based build system require
-                using <filename>cpan_build.bbclass</filename> in their recipes.
-                </para></listitem>
-        </itemizedlist>
-        Both build methods inherit the <filename>cpan-base</filename> class
-        for basic Perl support.
-    </para>
-</section>
-
-<section id='ref-classes-cross'>
-    <title><filename>cross.bbclass</filename></title>
-
-    <para>
-        The <filename>cross</filename> class provides support for the recipes
-        that build the cross-compilation tools.
-    </para>
-</section>
-
-<section id='ref-classes-cross-canadian'>
-    <title><filename>cross-canadian.bbclass</filename></title>
-
-    <para>
-        The <filename>cross-canadian</filename> class
-        provides support for the recipes that build the Canadian
-        Cross-compilation tools for SDKs.
-        See the
-        "<ulink url='&YOCTO_DOCS_OM_URL;#cross-development-toolchain-generation'>Cross-Development Toolchain Generation</ulink>"
-        section in the Yocto Project Overview and Concepts Manual for more
-        discussion on these cross-compilation tools.
-    </para>
-</section>
-
-<section id='ref-classes-crosssdk'>
-    <title><filename>crosssdk.bbclass</filename></title>
-
-    <para>
-        The <filename>crosssdk</filename> class
-        provides support for the recipes that build the cross-compilation
-        tools used for building SDKs.
-        See the
-        "<ulink url='&YOCTO_DOCS_OM_URL;#cross-development-toolchain-generation'>Cross-Development Toolchain Generation</ulink>"
-        section in the Yocto Project Overview and Concepts Manual for more
-        discussion on these cross-compilation tools.
-    </para>
-</section>
-
-<section id='ref-classes-debian'>
-    <title><filename>debian.bbclass</filename></title>
-
-    <para>
-        The <filename>debian</filename> class renames output packages so that
-        they follow the Debian naming policy (i.e. <filename>glibc</filename>
-        becomes <filename>libc6</filename> and <filename>glibc-devel</filename>
-        becomes <filename>libc6-dev</filename>.)
-        Renaming includes the library name and version as part of the package
-        name.
-    </para>
-
-    <para>
-        If a recipe creates packages for multiple libraries
-        (shared object files of <filename>.so</filename> type), use the
-        <link linkend='var-LEAD_SONAME'><filename>LEAD_SONAME</filename></link>
-        variable in the recipe to specify the library on which to apply the
-        naming scheme.
-    </para>
-</section>
-
-<section id='ref-classes-deploy'>
-    <title><filename>deploy.bbclass</filename></title>
-
-    <para>
-        The <filename>deploy</filename> class handles deploying files
-        to the
-        <link linkend='var-DEPLOY_DIR_IMAGE'><filename>DEPLOY_DIR_IMAGE</filename></link>
-        directory.
-        The main function of this class is to allow the deploy step to be
-        accelerated by shared state.
-        Recipes that inherit this class should define their own
-        <link linkend='ref-tasks-deploy'><filename>do_deploy</filename></link>
-        function to copy the files to be deployed to
-        <link linkend='var-DEPLOYDIR'><filename>DEPLOYDIR</filename></link>,
-        and use <filename>addtask</filename> to add the task at the appropriate
-        place, which is usually after
-        <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>
-        or
-        <link linkend='ref-tasks-install'><filename>do_install</filename></link>.
-        The class then takes care of staging the files from
-        <filename>DEPLOYDIR</filename> to
-        <filename>DEPLOY_DIR_IMAGE</filename>.
-    </para>
-</section>
-
-<section id='ref-classes-devshell'>
-    <title><filename>devshell.bbclass</filename></title>
-
-    <para>
-        The <filename>devshell</filename> class adds the
-        <filename>do_devshell</filename> task.
-        Distribution policy dictates whether to include this class.
-        See the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#platdev-appdev-devshell'>Using a Development Shell</ulink>" section
-        in the Yocto Project Development Tasks Manual for more information about
-        using <filename>devshell</filename>.
-    </para>
-</section>
-
-<section id='ref-classes-devupstream'>
-    <title><filename>devupstream.bbclass</filename></title>
-
-    <para>
-        The <filename>devupstream</filename> class uses
-        <link linkend='var-BBCLASSEXTEND'><filename>BBCLASSEXTEND</filename></link>
-        to add a variant of the recipe that fetches from an alternative URI
-        (e.g. Git) instead of a tarball.
-        Following is an example:
-        <literallayout class='monospaced'>
-     BBCLASSEXTEND = "devupstream:target"
-     SRC_URI_class-devupstream = "git://git.example.com/example"
-     SRCREV_class-devupstream = "abcd1234"
-        </literallayout>
-        Adding the above statements to your recipe creates a variant that has
-        <link linkend='var-DEFAULT_PREFERENCE'><filename>DEFAULT_PREFERENCE</filename></link>
-        set to "-1".
-        Consequently, you need to select the variant of the recipe to use it.
-        Any development-specific adjustments can be done by using the
-        <filename>class-devupstream</filename> override.
-        Here is an example:
-        <literallayout class='monospaced'>
-     DEPENDS_append_class-devupstream = " gperf-native"
-
-     do_configure_prepend_class-devupstream() {
-        touch ${S}/README
-     }
-        </literallayout>
-        The class currently only supports creating a development variant of
-        the target recipe, not <filename>native</filename> or
-        <filename>nativesdk</filename> variants.
-    </para>
-
-    <para>
-        The <filename>BBCLASSEXTEND</filename> syntax
-        (i.e. <filename>devupstream:target</filename>) provides support for
-        <filename>native</filename> and <filename>nativesdk</filename>
-        variants.
-        Consequently, this functionality can be added in a future release.
-    </para>
-
-    <para>
-        Support for other version control systems such as Subversion is
-        limited due to BitBake's automatic fetch dependencies (e.g.
-        <filename>subversion-native</filename>).
-    </para>
-</section>
-
-<section id='ref-classes-distro_features_check'>
-    <title><filename>distro_features_check.bbclass</filename></title>
-
-    <para>
-        The <filename>distro_features_check</filename> class
-        allows individual recipes to check for required and conflicting
-        <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>.
-    </para>
-
-    <para>
-        This class provides support for the
-        <link linkend='var-REQUIRED_DISTRO_FEATURES'><filename>REQUIRED_DISTRO_FEATURES</filename></link>
-        and
-        <link linkend='var-CONFLICT_DISTRO_FEATURES'><filename>CONFLICT_DISTRO_FEATURES</filename></link>
-        variables.
-        If any conditions specified in the recipe using the above variables are
-        not met, the recipe will be skipped.
-    </para>
-</section>
-
-<section id='ref-classes-distutils'>
-    <title><filename>distutils*.bbclass</filename></title>
-
-    <para>
-        The <filename>distutils*</filename> classes support recipes for Python
-        version 2.x extensions, which are simple.
-        These recipes usually only need to point to the source's archive and
-        then inherit the proper class.
-        Building is split into two methods depending on which method the
-        module authors used.
-        <itemizedlist>
-            <listitem><para>Extensions that use an Autotools-based build system
-                require Autotools and the classes based on
-                <filename>distutils</filename> in their recipes.
-                </para></listitem>
-            <listitem><para>Extensions that use build systems based on
-                <filename>distutils</filename> require
-                the <filename>distutils</filename> class in their recipes.
-                </para></listitem>
-            <listitem><para>Extensions that use build systems based on
-                <filename>setuptools</filename> require the
-                <link linkend='ref-classes-setuptools'><filename>setuptools</filename></link>
-                class in their recipes.
-                </para></listitem>
-        </itemizedlist>
-        The <filename>distutils-common-base</filename> class is required by
-        some of the <filename>distutils*</filename> classes to provide common
-        Python2 support.
-    </para>
-</section>
-
-<section id='ref-classes-distutils3'>
-    <title><filename>distutils3*.bbclass</filename></title>
-
-    <para>
-        The <filename>distutils3*</filename> classes support recipes for Python
-        version 3.x extensions, which are simple.
-        These recipes usually only need to point to the source's archive and
-        then inherit the proper class.
-        Building is split into three methods depending on which method the
-        module authors used.
-        <itemizedlist>
-            <listitem><para>Extensions that use an Autotools-based build system
-                require Autotools and
-                <filename>distutils</filename>-based classes in their recipes.
-                </para></listitem>
-            <listitem><para>Extensions that use
-                <filename>distutils</filename>-based build systems require
-                the <filename>distutils</filename> class in their recipes.
-                </para></listitem>
-            <listitem><para>Extensions that use build systems based on
-                <filename>setuptools3</filename> require the
-                <link linkend='ref-classes-setuptools'><filename>setuptools3</filename></link>
-                class in their recipes.
-                </para></listitem>
-        </itemizedlist>
-        The <filename>distutils3*</filename> classes either inherit their
-        corresponding <filename>distutils*</filename> class or replicate them
-        using a Python3 version instead (e.g.
-        <filename>distutils3-base</filename> inherits
-        <filename>distutils-common-base</filename>, which is the same as
-        <filename>distutils-base</filename> but inherits
-        <filename>python3native</filename> instead of
-        <filename>pythonnative</filename>).
-    </para>
-</section>
-
-<section id='ref-classes-externalsrc'>
-    <title><filename>externalsrc.bbclass</filename></title>
-
-    <para>
-        The <filename>externalsrc</filename> class supports building software
-        from source code that is external to the OpenEmbedded build system.
-        Building software from an external source tree means that the build
-        system's normal fetch, unpack, and patch process is not used.
-    </para>
-
-    <para>
-        By default, the OpenEmbedded build system uses the
-        <link linkend='var-S'><filename>S</filename></link> and
-        <link linkend='var-B'><filename>B</filename></link> variables to
-        locate unpacked recipe source code and to build it, respectively.
-        When your recipe inherits the <filename>externalsrc</filename> class,
-        you use the
-        <link linkend='var-EXTERNALSRC'><filename>EXTERNALSRC</filename></link>
-        and
-        <link linkend='var-EXTERNALSRC_BUILD'><filename>EXTERNALSRC_BUILD</filename></link>
-        variables to ultimately define <filename>S</filename> and
-        <filename>B</filename>.
-    </para>
-
-    <para>
-        By default, this class expects the source code to support recipe builds
-        that use the <link linkend='var-B'><filename>B</filename></link>
-        variable to point to the directory in which the OpenEmbedded build
-        system places the generated objects built from the recipes.
-        By default, the <filename>B</filename> directory is set to the
-        following, which is separate from the source directory
-        (<filename>S</filename>):
-        <literallayout class='monospaced'>
-     ${WORKDIR}/${BPN}/{PV}/
-        </literallayout>
-        See these variables for more information:
-        <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>,
-        <link linkend='var-BPN'><filename>BPN</filename></link>, and
-        <link linkend='var-PV'><filename>PV</filename></link>,
-    </para>
-
-    <para>
-        For more information on the
-        <filename>externalsrc</filename> class, see the comments in
-        <filename>meta/classes/externalsrc.bbclass</filename> in the
-        <link linkend='source-directory'>Source Directory</link>.
-        For information on how to use the <filename>externalsrc</filename>
-        class, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#building-software-from-an-external-source'>Building Software from an External Source</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-</section>
-
-<section id='ref-classes-extrausers'>
-    <title><filename>extrausers.bbclass</filename></title>
-
-    <para>
-        The <filename>extrausers</filename> class allows
-        additional user and group configuration to be applied at the image
-        level.
-        Inheriting this class either globally or from an image recipe allows
-        additional user and group operations to be performed using the
-        <link linkend='var-EXTRA_USERS_PARAMS'><filename>EXTRA_USERS_PARAMS</filename></link>
-        variable.
-        <note>
-            The user and group operations added using the
-            <filename>extrausers</filename> class are not tied to a specific
-            recipe outside of the recipe for the image.
-            Thus, the operations can be performed across the image as a whole.
-            Use the
-            <link linkend='ref-classes-useradd'><filename>useradd</filename></link>
-            class to add user and group configuration to a specific recipe.
-        </note>
-        Here is an example that uses this class in an image recipe:
-        <literallayout class='monospaced'>
-     inherit extrausers
-     EXTRA_USERS_PARAMS = "\
-         useradd -p '' tester; \
-         groupadd developers; \
-         userdel nobody; \
-         groupdel -g video; \
-         groupmod -g 1020 developers; \
-         usermod -s /bin/sh tester; \
-         "
-        </literallayout>
-        Here is an example that adds two users named "tester-jim" and
-        "tester-sue" and assigns passwords:
-        <literallayout class='monospaced'>
-     inherit extrausers
-     EXTRA_USERS_PARAMS = "\
-         useradd -P tester01 tester-jim; \
-         useradd -P tester01 tester-sue; \
-         "
-        </literallayout>
-        Finally, here is an example that sets the root password to
-        "1876*18":
-        <literallayout class='monospaced'>
-     inherit extrausers
-     EXTRA_USERS_PARAMS = "\
-         usermod -P 1876*18 root; \
-         "
-        </literallayout>
-    </para>
-</section>
-
-<section id='ref-classes-fontcache'>
-    <title><filename>fontcache.bbclass</filename></title>
-
-    <para>
-        The <filename>fontcache</filename> class generates the
-        proper post-install and post-remove (postinst and postrm)
-        scriptlets for font packages.
-        These scriptlets call <filename>fc-cache</filename> (part of
-        <filename>Fontconfig</filename>) to add the fonts to the font
-        information cache.
-        Since the cache files are architecture-specific,
-        <filename>fc-cache</filename> runs using QEMU if the postinst
-        scriptlets need to be run on the build host during image creation.
-    </para>
-
-    <para>
-        If the fonts being installed are in packages other than the main
-        package, set
-        <link linkend='var-FONT_PACKAGES'><filename>FONT_PACKAGES</filename></link>
-        to specify the packages containing the fonts.
-    </para>
-</section>
-
-<section id='ref-classes-fs-uuid'>
-    <title><filename>fs-uuid.bbclass</filename></title>
-
-    <para>
-        The <filename>fs-uuid</filename> class extracts UUID from
-        <filename>${</filename><link linkend='var-ROOTFS'><filename>ROOTFS</filename></link><filename>}</filename>,
-        which must have been built by the time that this function gets called.
-        The <filename>fs-uuid</filename> class only works on
-        <filename>ext</filename> file systems and depends on
-        <filename>tune2fs</filename>.
-    </para>
-</section>
-
-<section id='ref-classes-gconf'>
-    <title><filename>gconf.bbclass</filename></title>
-
-    <para>
-        The <filename>gconf</filename> class provides common
-        functionality for recipes that need to install GConf schemas.
-        The schemas will be put into a separate package
-        (<filename>${</filename><link linkend='var-PN'><filename>PN</filename></link><filename>}-gconf</filename>)
-        that is created automatically when this class is inherited.
-        This package uses the appropriate post-install and post-remove
-        (postinst/postrm) scriptlets to register and unregister the schemas
-        in the target image.
-    </para>
-</section>
-
-<section id='ref-classes-gettext'>
-    <title><filename>gettext.bbclass</filename></title>
-
-    <para>
-        The <filename>gettext</filename> class provides support for
-        building software that uses the GNU <filename>gettext</filename>
-        internationalization and localization system.
-        All recipes building software that use
-        <filename>gettext</filename> should inherit this class.
-    </para>
-</section>
-
-<section id='ref-classes-gnomebase'>
-    <title><filename>gnomebase.bbclass</filename></title>
-
-    <para>
-        The <filename>gnomebase</filename> class is the base
-        class for recipes that build software from the GNOME stack.
-        This class sets
-        <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link> to
-        download the source from the GNOME mirrors as well as extending
-        <link linkend='var-FILES'><filename>FILES</filename></link>
-        with the typical GNOME installation paths.
-    </para>
-</section>
-
-<section id='ref-classes-gobject-introspection'>
-    <title><filename>gobject-introspection.bbclass</filename></title>
-
-    <para>
-        Provides support for recipes building software that
-        supports GObject introspection.
-        This functionality is only enabled if the
-        "gobject-introspection-data" feature is in
-        <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>
-        as well as "qemu-usermode" being in
-        <link linkend='var-MACHINE_FEATURES'><filename>MACHINE_FEATURES</filename></link>.
-        <note>
-            This functionality is backfilled by default and,
-            if not applicable, should be disabled through
-            <link linkend='var-DISTRO_FEATURES_BACKFILL_CONSIDERED'><filename>DISTRO_FEATURES_BACKFILL_CONSIDERED</filename></link>
-            or
-            <link linkend='var-MACHINE_FEATURES_BACKFILL_CONSIDERED'><filename>MACHINE_FEATURES_BACKFILL_CONSIDERED</filename></link>,
-            respectively.
-        </note>
-    </para>
-</section>
-
-<section id='ref-classes-grub-efi'>
-    <title><filename>grub-efi.bbclass</filename></title>
-
-    <para>
-        The <filename>grub-efi</filename>
-        class provides <filename>grub-efi</filename>-specific functions for
-        building bootable images.
-    </para>
-
-    <para>
-        This class supports several variables:
-        <itemizedlist>
-            <listitem><para>
-                <link linkend='var-INITRD'><filename>INITRD</filename></link>:
-                Indicates list of filesystem images to concatenate and use
-                as an initial RAM disk (initrd) (optional).
-                </para></listitem>
-            <listitem><para>
-                <link linkend='var-ROOTFS'><filename>ROOTFS</filename></link>:
-                Indicates a filesystem image to include as the root filesystem
-                (optional).</para></listitem>
-            <listitem><para>
-                <link linkend='var-GRUB_GFXSERIAL'><filename>GRUB_GFXSERIAL</filename></link>:
-                Set this to "1" to have graphics and serial in the boot menu.
-                </para></listitem>
-            <listitem><para>
-                <link linkend='var-LABELS'><filename>LABELS</filename></link>:
-                A list of targets for the automatic configuration.
-                </para></listitem>
-            <listitem><para>
-                <link linkend='var-APPEND'><filename>APPEND</filename></link>:
-                An override list of append strings for each
-                <filename>LABEL</filename>.
-                </para></listitem>
-            <listitem><para>
-                <link linkend='var-GRUB_OPTS'><filename>GRUB_OPTS</filename></link>:
-                Additional options to add to the configuration (optional).
-                Options are delimited using semi-colon characters
-                (<filename>;</filename>).</para></listitem>
-            <listitem><para>
-                <link linkend='var-GRUB_TIMEOUT'><filename>GRUB_TIMEOUT</filename></link>:
-                Timeout before executing the default <filename>LABEL</filename>
-                (optional).
-                </para></listitem>
-       </itemizedlist>
-   </para>
-</section>
-
-<section id='ref-classes-gsettings'>
-    <title><filename>gsettings.bbclass</filename></title>
-
-    <para>
-        The <filename>gsettings</filename> class
-        provides common functionality for recipes that need to install
-        GSettings (glib) schemas.
-        The schemas are assumed to be part of the main package.
-        Appropriate post-install and post-remove (postinst/postrm)
-        scriptlets are added to register and unregister the schemas in the
-        target image.
-    </para>
-</section>
-
-<section id='ref-classes-gtk-doc'>
-    <title><filename>gtk-doc.bbclass</filename></title>
-
-    <para>
-        The <filename>gtk-doc</filename> class
-        is a helper class to pull in the appropriate
-        <filename>gtk-doc</filename> dependencies and disable
-        <filename>gtk-doc</filename>.
-    </para>
-</section>
-
-<section id='ref-classes-gtk-icon-cache'>
-    <title><filename>gtk-icon-cache.bbclass</filename></title>
-
-    <para>
-        The <filename>gtk-icon-cache</filename> class
-        generates the proper post-install and post-remove (postinst/postrm)
-        scriptlets for packages that use GTK+ and install icons.
-        These scriptlets call <filename>gtk-update-icon-cache</filename> to add
-        the fonts to GTK+'s icon cache.
-        Since the cache files are architecture-specific,
-        <filename>gtk-update-icon-cache</filename> is run using QEMU if the
-        postinst scriptlets need to be run on the build host during image
-        creation.
-    </para>
-</section>
-
-<section id='ref-classes-gtk-immodules-cache'>
-    <title><filename>gtk-immodules-cache.bbclass</filename></title>
-
-    <para>
-        The <filename>gtk-immodules-cache</filename> class
-        generates the proper post-install and post-remove (postinst/postrm)
-        scriptlets for packages that install GTK+ input method modules for
-        virtual keyboards.
-        These scriptlets call <filename>gtk-update-icon-cache</filename> to add
-        the input method modules to the cache.
-        Since the cache files are architecture-specific,
-        <filename>gtk-update-icon-cache</filename> is run using QEMU if the
-        postinst scriptlets need to be run on the build host during image
-        creation.
-    </para>
-
-    <para>
-        If the input method modules being installed are in packages other than
-        the main package, set
-        <link linkend='var-GTKIMMODULES_PACKAGES'><filename>GTKIMMODULES_PACKAGES</filename></link>
-        to specify the packages containing the modules.
-    </para>
-</section>
-
-<section id='ref-classes-gzipnative'>
-    <title><filename>gzipnative.bbclass</filename></title>
-
-    <para>
-        The <filename>gzipnative</filename> class enables the use of
-        different native versions of <filename>gzip</filename>
-        and <filename>pigz</filename> rather than the versions of these tools
-        from the build host.
-    </para>
-</section>
-
-<section id='ref-classes-icecc'>
-    <title><filename>icecc.bbclass</filename></title>
-
-    <para>
-        The <filename>icecc</filename> class supports
-        <ulink url='https://github.com/icecc/icecream'>Icecream</ulink>, which
-        facilitates taking compile jobs and distributing them among remote
-        machines.
-    </para>
-
-    <para>
-        The class stages directories with symlinks from <filename>gcc</filename>
-        and <filename>g++</filename> to <filename>icecc</filename>, for both
-        native and cross compilers.
-        Depending on each configure or compile, the OpenEmbedded build system
-        adds the directories at the head of the <filename>PATH</filename> list
-        and then sets the <filename>ICECC_CXX</filename> and
-        <filename>ICEC_CC</filename> variables, which are the paths to the
-        <filename>g++</filename> and <filename>gcc</filename> compilers,
-        respectively.
-    </para>
-
-    <para>
-        For the cross compiler, the class creates a <filename>tar.gz</filename>
-        file that contains the Yocto Project toolchain and sets
-        <filename>ICECC_VERSION</filename>, which is the version of the
-        cross-compiler used in the cross-development toolchain, accordingly.
-    </para>
-
-    <para>
-        The class handles all three different compile stages
-        (i.e native ,cross-kernel and target) and creates the necessary
-        environment <filename>tar.gz</filename> file to be used by the remote
-        machines.
-        The class also supports SDK generation.
-    </para>
-
-    <para>
-        If <link linkend='var-ICECC_PATH'><filename>ICECC_PATH</filename></link>
-        is not set in your <filename>local.conf</filename> file, then the
-        class tries to locate the <filename>icecc</filename> binary
-        using <filename>which</filename>.
-
-        If
-        <link linkend='var-ICECC_ENV_EXEC'><filename>ICECC_ENV_EXEC</filename></link>
-        is set in your <filename>local.conf</filename> file, the variable should
-        point to the <filename>icecc-create-env</filename> script
-        provided by the user.
-        If you do not point to a user-provided script, the build system
-        uses the default script provided by the recipe
-        <filename>icecc-create-env-native.bb</filename>.
-        <note>
-            This script is a modified version and not the one that comes with
-            <filename>icecc</filename>.
-        </note>
-    </para>
-
-    <para>
-        If you do not want the Icecream distributed compile support to apply
-        to specific recipes or classes, you can effectively "blacklist" them
-        by listing the recipes and classes using the
-        <link linkend='var-ICECC_USER_PACKAGE_BL'><filename>ICECC_USER_PACKAGE_BL</filename></link>
-        and
-        <link linkend='var-ICECC_USER_CLASS_BL'><filename>ICECC_USER_CLASS_BL</filename></link>,
-        variables, respectively, in your <filename>local.conf</filename> file.
-        Doing so causes the OpenEmbedded build system to handle these
-        compilations locally.
-    </para>
-
-    <para>
-        Additionally, you can list recipes using the
-        <link linkend='var-ICECC_USER_PACKAGE_WL'><filename>ICECC_USER_PACKAGE_WL</filename></link>
-        variable in your <filename>local.conf</filename> file to force
-        <filename>icecc</filename> to be enabled for recipes using an empty
-        <link linkend='var-PARALLEL_MAKE'><filename>PARALLEL_MAKE</filename></link>
-        variable.
-    </para>
-
-    <para>
-        Inheriting the <filename>icecc</filename> class changes all sstate
-        signatures.
-        Consequently, if a development team has a dedicated build system
-        that populates
-        <link linkend='var-SSTATE_MIRRORS'><filename>STATE_MIRRORS</filename></link>
-        and they want to reuse sstate from
-        <filename>STATE_MIRRORS</filename>, then all developers and the
-        build system need to either inherit the <filename>icecc</filename>
-        class or nobody should.
-    </para>
-
-    <para>
-        At the distribution level, you can inherit the
-        <filename>icecc</filename> class to be sure that all builders start
-        with the same sstate signatures.
-        After inheriting the class, you can then disable the feature by setting
-        the
-        <link linkend='var-ICECC_DISABLED'><filename>ICECC_DISABLED</filename></link>
-        variable to "1" as follows:
-        <literallayout class='monospaced'>
-     INHERIT_DISTRO_append = " icecc"
-     ICECC_DISABLED ??= "1"
-        </literallayout>
-        This practice makes sure everyone is using the same signatures but also
-        requires individuals that do want to use Icecream to enable the feature
-        individually as follows in your <filename>local.conf</filename> file:
-        <literallayout class='monospaced'>
-     ICECC_DISABLED = ""
-        </literallayout>
-    </para>
-</section>
-
-<section id='ref-classes-image'>
-    <title><filename>image.bbclass</filename></title>
-
-    <para>
-        The <filename>image</filename> class helps support creating images
-        in different formats.
-        First, the root filesystem is created from packages using
-        one of the <filename>rootfs*.bbclass</filename>
-        files (depending on the package format used) and then one or more image
-        files are created.
-        <itemizedlist>
-            <listitem><para>The
-                <filename><link linkend='var-IMAGE_FSTYPES'>IMAGE_FSTYPES</link></filename>
-                variable controls the types of images to generate.
-                </para></listitem>
-            <listitem><para>The
-                <filename><link linkend='var-IMAGE_INSTALL'>IMAGE_INSTALL</link></filename>
-                variable controls the list of packages to install into the
-                image.</para></listitem>
-        </itemizedlist>
-        For information on customizing images, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#usingpoky-extend-customimage'>Customizing Images</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-        For information on how images are created, see the
-        "<ulink url='&YOCTO_DOCS_OM_URL;#images-dev-environment'>Images</ulink>"
-        section in the Yocto Project Overview and Concpets Manual.
-    </para>
-</section>
-
-<section id='ref-classes-image-buildinfo'>
-    <title><filename>image-buildinfo.bbclass</filename></title>
-
-    <para>
-        The <filename>image-buildinfo</filename> class writes information
-        to the target filesystem on <filename>/etc/build</filename>.
-    </para>
-</section>
-
-<section id='ref-classes-image_types'>
-    <title><filename>image_types.bbclass</filename></title>
-
-    <para>
-        The <filename>image_types</filename> class defines all of the
-        standard image output types that you can enable through the
-        <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>
-        variable.
-        You can use this class as a reference on how to add support for
-        custom image output types.
-    </para>
-
-    <para>
-        By default, the
-        <link linkend='ref-classes-image'><filename>image</filename></link>
-        class automatically enables the <filename>image_types</filename> class.
-        The <filename>image</filename> class uses the
-        <filename>IMGCLASSES</filename> variable as follows:
-        <literallayout class='monospaced'>
-     IMGCLASSES = "rootfs_${IMAGE_PKGTYPE} image_types ${IMAGE_CLASSES}"
-     IMGCLASSES += "${@['populate_sdk_base', 'populate_sdk_ext']['linux' in d.getVar("SDK_OS")]}"
-     IMGCLASSES += "${@bb.utils.contains_any('IMAGE_FSTYPES', 'live iso hddimg', 'image-live', '', d)}"
-     IMGCLASSES += "${@bb.utils.contains('IMAGE_FSTYPES', 'container', 'image-container', '', d)}"
-     IMGCLASSES += "image_types_wic"
-     IMGCLASSES += "rootfs-postcommands"
-     IMGCLASSES += "image-postinst-intercepts"
-     inherit ${IMGCLASSES}
-        </literallayout>
-    </para>
-
-    <para>
-        The <filename>image_types</filename> class also handles conversion and
-        compression of images.
-        <note>
-            To build a VMware VMDK image, you need to add "wic.vmdk" to
-            <filename>IMAGE_FSTYPES</filename>.
-            This would also be similar for Virtual Box Virtual Disk Image
-            ("vdi") and QEMU Copy On Write Version 2 ("qcow2") images.
-        </note>
-    </para>
-</section>
-
-<section id='ref-classes-image-live'>
-    <title><filename>image-live.bbclass</filename></title>
-
-    <para>
-        This class controls building "live" (i.e. HDDIMG and ISO) images.
-        Live images contain syslinux for legacy booting, as well as the
-        bootloader specified by
-        <link linkend='var-EFI_PROVIDER'><filename>EFI_PROVIDER</filename></link>
-        if
-        <link linkend='var-MACHINE_FEATURES'><filename>MACHINE_FEATURES</filename></link>
-        contains "efi".
-    </para>
-
-    <para>
-        Normally, you do not use this class directly.
-        Instead, you add "live" to
-        <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>.
-    </para>
-</section>
-
-<section id='ref-classes-image-mklibs'>
-    <title><filename>image-mklibs.bbclass</filename></title>
-
-    <para>
-        The <filename>image-mklibs</filename> class
-        enables the use of the <filename>mklibs</filename> utility during the
-        <link linkend='ref-tasks-rootfs'><filename>do_rootfs</filename></link>
-        task, which optimizes the size of
-        libraries contained in the image.
-    </para>
-
-    <para>
-        By default, the class is enabled in the
-        <filename>local.conf.template</filename> using the
-        <link linkend='var-USER_CLASSES'><filename>USER_CLASSES</filename></link>
-        variable as follows:
-        <literallayout class='monospaced'>
-     USER_CLASSES ?= "buildstats image-mklibs image-prelink"
-        </literallayout>
-    </para>
-</section>
-
-<section id='ref-classes-image-prelink'>
-    <title><filename>image-prelink.bbclass</filename></title>
-
-    <para>
-        The <filename>image-prelink</filename> class
-        enables the use of the <filename>prelink</filename> utility during
-        the
-        <link linkend='ref-tasks-rootfs'><filename>do_rootfs</filename></link>
-        task, which optimizes the dynamic
-        linking of shared libraries to reduce executable startup time.
-    </para>
-
-    <para>
-        By default, the class is enabled in the
-        <filename>local.conf.template</filename> using the
-        <link linkend='var-USER_CLASSES'><filename>USER_CLASSES</filename></link>
-        variable as follows:
-        <literallayout class='monospaced'>
-     USER_CLASSES ?= "buildstats image-mklibs image-prelink"
-        </literallayout>
-    </para>
-</section>
-
-<section id='ref-classes-insane'>
-    <title><filename>insane.bbclass</filename></title>
-
-    <para>
-        The <filename>insane</filename> class adds a step to the package
-        generation process so that output quality assurance checks are
-        generated by the OpenEmbedded build system.
-        A range of checks are performed that check the build's output
-        for common problems that show up during runtime.
-        Distribution policy usually dictates whether to include this class.
-    </para>
-
-    <para>
-        You can configure the sanity checks so that specific test failures
-        either raise a warning or an error message.
-        Typically, failures for new tests generate a warning.
-        Subsequent failures for the same test would then generate an error
-        message once the metadata is in a known and good condition.
-        See the
-        "<link linkend='ref-qa-checks'>QA Error and Warning Messages</link>"
-        Chapter for a list of all the warning and error messages
-        you might encounter using a default configuration.
-    </para>
-
-    <para>
-        Use the
-        <link linkend='var-WARN_QA'><filename>WARN_QA</filename></link> and
-        <link linkend='var-ERROR_QA'><filename>ERROR_QA</filename></link>
-        variables to control the behavior of
-        these checks at the global level (i.e. in your custom distro
-        configuration).
-        However, to skip one or more checks in recipes, you should use
-        <link linkend='var-INSANE_SKIP'><filename>INSANE_SKIP</filename></link>.
-        For example, to skip the check for symbolic link
-        <filename>.so</filename> files in the main package of a recipe,
-        add the following to the recipe.
-        You need to realize that the package name override, in this example
-        <filename>${PN}</filename>, must be used:
-        <literallayout class='monospaced'>
-     INSANE_SKIP_${PN} += "dev-so"
-        </literallayout>
-        Please keep in mind that the QA checks exist in order to detect real
-        or potential problems in the packaged output.
-        So exercise caution when disabling these checks.
-    </para>
-
-    <para>
-        The following list shows the tests you can list with the
-        <filename>WARN_QA</filename> and <filename>ERROR_QA</filename>
-        variables:
-        <itemizedlist>
-            <listitem><para><emphasis><filename>already-stripped:</filename></emphasis>
-                Checks that produced binaries have not already been
-                stripped prior to the build system extracting debug symbols.
-                It is common for upstream software projects to default to
-                stripping debug symbols for output binaries.
-                In order for debugging to work on the target using
-                <filename>-dbg</filename> packages, this stripping must be
-                disabled.
-                </para></listitem>
-            <listitem><para><emphasis><filename>arch:</filename></emphasis>
-                Checks the Executable and Linkable Format (ELF) type, bit size,
-                and endianness of any binaries to ensure they match the target
-                architecture.
-                This test fails if any binaries do not match the type since
-                there would be an incompatibility.
-                The test could indicate that the
-                wrong compiler or compiler options have been used.
-                Sometimes software, like bootloaders, might need to bypass
-                this check.
-                </para></listitem>
-            <listitem><para><emphasis><filename>buildpaths:</filename></emphasis>
-                Checks for paths to locations on the build host inside the
-                output files.
-                Currently, this test triggers too many false positives and
-                thus is not normally enabled.
-                </para></listitem>
-            <listitem><para><emphasis><filename>build-deps:</filename></emphasis>
-                Determines if a build-time dependency that is specified through
-                <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>,
-                explicit
-                <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>,
-                or task-level dependencies exists to match any runtime
-                dependency.
-                This determination is particularly useful to discover where
-                runtime dependencies are detected and added during packaging.
-                If no explicit dependency has been specified within the
-                metadata, at the packaging stage it is too late to ensure that
-                the dependency is built, and thus you can end up with an
-                error when the package is installed into the image during the
-                <link linkend='ref-tasks-rootfs'><filename>do_rootfs</filename></link>
-                task because the auto-detected dependency was not satisfied.
-                An example of this would be where the
-                <link linkend='ref-classes-update-rc.d'><filename>update-rc.d</filename></link>
-                class automatically adds a dependency on the
-                <filename>initscripts-functions</filename> package to packages
-                that install an initscript that refers to
-                <filename>/etc/init.d/functions</filename>.
-                The recipe should really have an explicit
-                <filename>RDEPENDS</filename> for the package in question on
-                <filename>initscripts-functions</filename> so that the
-                OpenEmbedded build system is able to ensure that the
-                <filename>initscripts</filename> recipe is actually built and
-                thus the <filename>initscripts-functions</filename> package is
-                made available.
-                </para></listitem>
-            <listitem><para><emphasis><filename>compile-host-path:</filename></emphasis>
-                Checks the
-                <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>
-                log for indications
-                that paths to locations on the build host were used.
-                Using such paths might result in host contamination of the
-                build output.
-                </para></listitem>
-            <listitem><para><emphasis><filename>debug-deps:</filename></emphasis>
-                Checks that all packages except <filename>-dbg</filename>
-                packages do not depend on <filename>-dbg</filename>
-                packages, which would cause a packaging bug.
-                </para></listitem>
-            <listitem><para><emphasis><filename>debug-files:</filename></emphasis>
-                Checks for <filename>.debug</filename> directories in anything but the
-                <filename>-dbg</filename> package.
-                The debug files should all be in the <filename>-dbg</filename> package.
-                Thus, anything packaged elsewhere is incorrect packaging.</para></listitem>
-            <listitem><para><emphasis><filename>dep-cmp:</filename></emphasis>
-                Checks for invalid version comparison statements in runtime
-                dependency relationships between packages (i.e. in
-                <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>,
-                <link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link>,
-                <link linkend='var-RSUGGESTS'><filename>RSUGGESTS</filename></link>,
-                <link linkend='var-RPROVIDES'><filename>RPROVIDES</filename></link>,
-                <link linkend='var-RREPLACES'><filename>RREPLACES</filename></link>,
-                and
-                <link linkend='var-RCONFLICTS'><filename>RCONFLICTS</filename></link>
-                variable values).
-                Any invalid comparisons might trigger failures or undesirable
-                behavior when passed to the package manager.
-                </para></listitem>
-            <listitem><para><emphasis><filename>desktop:</filename></emphasis>
-                Runs the <filename>desktop-file-validate</filename> program
-                against any <filename>.desktop</filename> files to validate
-                their contents against the specification for
-                <filename>.desktop</filename> files.</para></listitem>
-            <listitem><para><emphasis><filename>dev-deps:</filename></emphasis>
-                Checks that all packages except <filename>-dev</filename>
-                or <filename>-staticdev</filename> packages do not depend on
-                <filename>-dev</filename> packages, which would be a
-                packaging bug.</para></listitem>
-            <listitem><para><emphasis><filename>dev-so:</filename></emphasis>
-                Checks that the <filename>.so</filename> symbolic links are in the
-                <filename>-dev</filename> package and not in any of the other packages.
-                In general, these symlinks are only useful for development purposes.
-                Thus, the <filename>-dev</filename> package is the correct location for
-                them.
-                Some very rare cases do exist for dynamically loaded modules where
-                these symlinks are needed instead in the main package.
-                </para></listitem>
-            <listitem><para><emphasis><filename>file-rdeps:</filename></emphasis>
-                Checks that file-level dependencies identified by the
-                OpenEmbedded build system at packaging time are satisfied.
-                For example, a shell script might start with the line
-                <filename>#!/bin/bash</filename>.
-                This line would translate to a file dependency on
-                <filename>/bin/bash</filename>.
-                Of the three package managers that the OpenEmbedded build
-                system supports, only RPM directly handles file-level
-                dependencies, resolving them automatically to packages
-                providing the files.
-                However, the lack of that functionality in the other two
-                package managers does not mean the dependencies do not still
-                need resolving.
-                This QA check attempts to ensure that explicitly declared
-                <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>
-                exist to handle any file-level dependency detected in
-                packaged files.
-                </para></listitem>
-            <listitem><para><emphasis><filename>files-invalid:</filename></emphasis>
-                Checks for
-                <link linkend='var-FILES'><filename>FILES</filename></link>
-                variable values that contain "//", which is invalid.
-                </para></listitem>
-            <listitem><para id='insane-host-user-contaminated'>
-                <emphasis><filename>host-user-contaminated:</filename></emphasis>
-                Checks that no package produced by the recipe contains any
-                files outside of <filename>/home</filename> with a user or
-                group ID that matches the user running BitBake.
-                A match usually indicates that the files are being installed
-                with an incorrect UID/GID, since target IDs are independent
-                from host IDs.
-                For additional information, see the section describing the
-                <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-                task.
-                </para></listitem>
-            <listitem><para><emphasis><filename>incompatible-license:</filename></emphasis>
-                Report when packages are excluded from being created due to
-                being marked with a license that is in
-                <link linkend='var-INCOMPATIBLE_LICENSE'><filename>INCOMPATIBLE_LICENSE</filename></link>.
-                </para></listitem>
-            <listitem><para><emphasis><filename>install-host-path:</filename></emphasis>
-                Checks the
-                <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-                log for indications
-                that paths to locations on the build host were used.
-                Using such paths might result in host contamination of the
-                build output.
-                </para></listitem>
-            <listitem><para><emphasis><filename>installed-vs-shipped:</filename></emphasis>
-                Reports when files have been installed within
-                <filename>do_install</filename> but have not been included in
-                any package by way of the
-                <link linkend='var-FILES'><filename>FILES</filename></link>
-                variable.
-                Files that do not appear in any package cannot be present in
-                an image later on in the build process.
-                Ideally, all installed files should be packaged or not
-                installed at all.
-                These files can be deleted at the end of
-                <filename>do_install</filename> if the files are not
-                needed in any package.
-                </para></listitem>
-            <listitem><para><emphasis><filename>invalid-chars:</filename></emphasis>
-                Checks that the recipe metadata variables
-                <link linkend='var-DESCRIPTION'><filename>DESCRIPTION</filename></link>,
-                <link linkend='var-SUMMARY'><filename>SUMMARY</filename></link>,
-                <link linkend='var-LICENSE'><filename>LICENSE</filename></link>,
-                and
-                <link linkend='var-SECTION'><filename>SECTION</filename></link>
-                do not contain non-UTF-8 characters.
-                Some package managers do not support such characters.
-                </para></listitem>
-            <listitem><para><emphasis><filename>invalid-packageconfig:</filename></emphasis>
-                Checks that no undefined features are being added to
-                <link linkend='var-PACKAGECONFIG'><filename>PACKAGECONFIG</filename></link>.
-                For example, any name "foo" for which the following form
-                does not exist:
-                <literallayout class='monospaced'>
-     PACKAGECONFIG[foo] = "..."
-                </literallayout>
-                </para></listitem>
-            <listitem><para><emphasis><filename>la:</filename></emphasis>
-                Checks <filename>.la</filename> files for any <filename>TMPDIR</filename>
-                paths.
-                Any <filename>.la</filename> file containing these paths is incorrect since
-                <filename>libtool</filename> adds the correct sysroot prefix when using the
-                files automatically itself.</para></listitem>
-            <listitem><para><emphasis><filename>ldflags:</filename></emphasis>
-                Ensures that the binaries were linked with the
-                <link linkend='var-LDFLAGS'><filename>LDFLAGS</filename></link>
-                options provided by the build system.
-                If this test fails, check that the <filename>LDFLAGS</filename> variable
-                is being passed to the linker command.</para></listitem>
-            <listitem><para><emphasis><filename>libdir:</filename></emphasis>
-                Checks for libraries being installed into incorrect
-                (possibly hardcoded) installation paths.
-                For example, this test will catch recipes that install
-                <filename>/lib/bar.so</filename> when
-                <filename>${base_libdir}</filename> is "lib32".
-                Another example is when recipes install
-                <filename>/usr/lib64/foo.so</filename> when
-                <filename>${libdir}</filename> is "/usr/lib".
-                </para></listitem>
-            <listitem><para><emphasis><filename>libexec:</filename></emphasis>
-                Checks if a package contains files in
-                <filename>/usr/libexec</filename>.
-                This check is not performed if the
-                <filename>libexecdir</filename> variable has been set
-                explicitly to <filename>/usr/libexec</filename>.
-                </para></listitem>
-            <listitem><para><emphasis><filename>packages-list:</filename></emphasis>
-                Checks for the same package being listed multiple times through
-                the <link linkend='var-PACKAGES'><filename>PACKAGES</filename></link>
-                variable value.
-                Installing the package in this manner can cause errors during
-                packaging.
-                </para></listitem>
-            <listitem><para><emphasis><filename>perm-config:</filename></emphasis>
-                Reports lines in <filename>fs-perms.txt</filename> that have
-                an invalid format.
-                </para></listitem>
-            <listitem><para><emphasis><filename>perm-line:</filename></emphasis>
-                Reports lines in <filename>fs-perms.txt</filename> that have
-                an invalid format.
-                </para></listitem>
-            <listitem><para><emphasis><filename>perm-link:</filename></emphasis>
-                Reports lines in <filename>fs-perms.txt</filename> that
-                specify 'link' where the specified target already exists.
-                </para></listitem>
-            <listitem><para><emphasis><filename>perms:</filename></emphasis>
-                Currently, this check is unused but reserved.
-                </para></listitem>
-            <listitem><para><emphasis><filename>pkgconfig:</filename></emphasis>
-                Checks <filename>.pc</filename> files for any
-                <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>/<link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>
-                paths.
-                Any <filename>.pc</filename> file containing these paths is incorrect
-                since <filename>pkg-config</filename> itself adds the correct sysroot prefix
-                when the files are accessed.</para></listitem>
-            <listitem><para><emphasis><filename>pkgname:</filename></emphasis>
-                Checks that all packages in
-                <link linkend='var-PACKAGES'><filename>PACKAGES</filename></link>
-                have names that do not contain invalid characters (i.e.
-                characters other than 0-9, a-z, ., +, and -).
-                </para></listitem>
-            <listitem><para><emphasis><filename>pkgv-undefined:</filename></emphasis>
-                Checks to see if the <filename>PKGV</filename> variable
-                is undefined during
-                <link linkend='ref-tasks-package'><filename>do_package</filename></link>.
-                </para></listitem>
-            <listitem><para><emphasis><filename>pkgvarcheck:</filename></emphasis>
-                Checks through the variables
-                <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>,
-                <link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link>,
-                <link linkend='var-RSUGGESTS'><filename>RSUGGESTS</filename></link>,
-                <link linkend='var-RCONFLICTS'><filename>RCONFLICTS</filename></link>,
-                <link linkend='var-RPROVIDES'><filename>RPROVIDES</filename></link>,
-                <link linkend='var-RREPLACES'><filename>RREPLACES</filename></link>,
-                <link linkend='var-FILES'><filename>FILES</filename></link>,
-                <link linkend='var-ALLOW_EMPTY'><filename>ALLOW_EMPTY</filename></link>,
-                <filename>pkg_preinst</filename>,
-                <filename>pkg_postinst</filename>,
-                <filename>pkg_prerm</filename>
-                and <filename>pkg_postrm</filename>, and reports if there are
-                variable sets that are not package-specific.
-                Using these variables without a package suffix is bad practice,
-                and might unnecessarily complicate dependencies of other packages
-                within the same recipe or have other unintended consequences.
-                </para></listitem>
-            <listitem><para><emphasis><filename>pn-overrides:</filename></emphasis>
-                Checks that a recipe does not have a name
-                (<link linkend='var-PN'><filename>PN</filename></link>) value
-                that appears in
-                <link linkend='var-OVERRIDES'><filename>OVERRIDES</filename></link>.
-                If a recipe is named such that its <filename>PN</filename>
-                value matches something already in
-                <filename>OVERRIDES</filename> (e.g. <filename>PN</filename>
-                happens to be the same as
-                <link linkend='var-MACHINE'><filename>MACHINE</filename></link>
-                or
-                <link linkend='var-DISTRO'><filename>DISTRO</filename></link>),
-                it can have unexpected consequences.
-                For example, assignments such as
-                <filename>FILES_${PN} = "xyz"</filename> effectively turn into
-                <filename>FILES = "xyz"</filename>.
-                </para></listitem>
-           <listitem><para><emphasis><filename>rpaths:</filename></emphasis>
-                Checks for rpaths in the binaries that contain build system paths such
-                as <filename>TMPDIR</filename>.
-                If this test fails, bad <filename>-rpath</filename> options are being
-                passed to the linker commands and your binaries have potential security
-                issues.</para></listitem>
-            <listitem><para><emphasis><filename>split-strip:</filename></emphasis>
-                Reports that splitting or stripping debug symbols from binaries
-                has failed.
-                </para></listitem>
-            <listitem><para><emphasis><filename>staticdev:</filename></emphasis>
-                Checks for static library files (<filename>*.a</filename>) in
-                non-<filename>staticdev</filename> packages.
-                </para></listitem>
-            <listitem><para><emphasis><filename>symlink-to-sysroot:</filename></emphasis>
-                Checks for symlinks in packages that point into
-                <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>
-                on the host.
-                Such symlinks will work on the host, but are clearly invalid
-                when running on the target.
-                </para></listitem>
-            <listitem><para><emphasis><filename>textrel:</filename></emphasis>
-                Checks for ELF binaries that contain relocations in their
-                <filename>.text</filename> sections, which can result in a
-                performance impact at runtime.
-                See the explanation for the
-                <link linkend='qa-issue-textrel'><filename>ELF binary</filename></link>
-                message for more information regarding runtime performance issues.
-                </para></listitem>
-<!--
-This check was removed for YP 2.3 release
-
-            <listitem><para><emphasis><filename>unsafe-references-in-binaries:</filename></emphasis>
-                Reports when a binary installed in
-                <filename>${base_libdir}</filename>,
-                <filename>${base_bindir}</filename>, or
-                <filename>${base_sbindir}</filename>, depends on another
-                binary installed under <filename>${exec_prefix}</filename>.
-                This dependency is a concern if you want the system to remain
-                basically operable if <filename>/usr</filename> is mounted
-                separately and is not mounted.
-                <note>
-                    Defaults for binaries installed in
-                    <filename>${base_libdir}</filename>,
-                    <filename>${base_bindir}</filename>, and
-                    <filename>${base_sbindir}</filename> are
-                    <filename>/lib</filename>, <filename>/bin</filename>, and
-                    <filename>/sbin</filename>, respectively.
-                    The default for a binary installed
-                    under <filename>${exec_prefix}</filename> is
-                    <filename>/usr</filename>.
-                </note>
-                </para></listitem>
--->
-            <listitem><para><emphasis><filename>unlisted-pkg-lics:</filename></emphasis>
-                Checks that all declared licenses applying for a package are also
-                declared on the recipe level (i.e. any license in
-                <filename>LICENSE_*</filename> should appear in
-                <link linkend='var-LICENSE'><filename>LICENSE</filename></link>).
-                </para></listitem>
-            <listitem><para><emphasis><filename>useless-rpaths:</filename></emphasis>
-                Checks for dynamic library load paths (rpaths) in the binaries that
-                by default on a standard system are searched by the linker (e.g.
-                <filename>/lib</filename> and <filename>/usr/lib</filename>).
-                While these paths will not cause any breakage, they do waste space and
-                are unnecessary.</para></listitem>
-            <listitem><para><emphasis><filename>var-undefined:</filename></emphasis>
-                Reports when variables fundamental to packaging (i.e.
-                <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>,
-                <link linkend='var-DEPLOY_DIR'><filename>DEPLOY_DIR</filename></link>,
-                <link linkend='var-D'><filename>D</filename></link>,
-                <link linkend='var-PN'><filename>PN</filename></link>, and
-                <link linkend='var-PKGD'><filename>PKGD</filename></link>) are
-                undefined during
-                <link linkend='ref-tasks-package'><filename>do_package</filename></link>.
-                </para></listitem>
-            <listitem><para><emphasis><filename>version-going-backwards:</filename></emphasis>
-                If Build History is enabled, reports when a package
-                being written out has a lower version than the previously
-                written package under the same name.
-                If you are placing output packages into a feed and
-                upgrading packages on a target system using that feed, the
-                version of a package going backwards can result in the target
-                system not correctly upgrading to the "new" version of the
-                package.
-                <note>
-                    If you are not using runtime package management on your
-                    target system, then you do not need to worry about
-                    this situation.
-                </note>
-                </para></listitem>
-            <listitem><para><emphasis><filename>xorg-driver-abi:</filename></emphasis>
-                Checks that all packages containing Xorg drivers have ABI
-                dependencies.
-                The <filename>xserver-xorg</filename> recipe provides driver
-                ABI names.
-                All drivers should depend on the ABI versions that they have
-                been built against.
-                Driver recipes that include
-                <filename>xorg-driver-input.inc</filename>
-                or <filename>xorg-driver-video.inc</filename> will
-                automatically get these versions.
-                Consequently, you should only need to explicitly add
-                dependencies to binary driver recipes.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='ref-classes-insserv'>
-    <title><filename>insserv.bbclass</filename></title>
-
-    <para>
-        The <filename>insserv</filename> class
-        uses the <filename>insserv</filename> utility to update the order of
-        symbolic links in <filename>/etc/rc?.d/</filename> within an image
-        based on dependencies specified by LSB headers in the
-        <filename>init.d</filename> scripts themselves.
-    </para>
-</section>
-
-<section id='ref-classes-kernel'>
-    <title><filename>kernel.bbclass</filename></title>
-
-    <para>
-        The <filename>kernel</filename> class handles building Linux kernels.
-        The class contains code to build all kernel trees.
-        All needed headers are staged into the
-        <filename><link linkend='var-STAGING_KERNEL_DIR'>STAGING_KERNEL_DIR</link></filename>
-        directory to allow out-of-tree module builds using
-        the
-        <link linkend='ref-classes-module'><filename>module</filename></link>
-        class.
-    </para>
-
-    <para>
-        This means that each built kernel module is packaged separately and
-        inter-module dependencies are created by parsing the
-        <filename>modinfo</filename> output.
-        If all modules are required, then installing the
-        <filename>kernel-modules</filename> package installs all packages with
-        modules and various other kernel packages such as
-        <filename>kernel-vmlinux</filename>.
-    </para>
-
-    <para>
-        The <filename>kernel</filename> class contains logic that allows
-        you to embed an initial RAM filesystem (initramfs) image when
-        you build the kernel image.
-        For information on how to build an initramfs, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#building-an-initramfs-image'>Building an Initial RAM Filesystem (initramfs) Image</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-
-    <para>
-        Various other classes are used by the <filename>kernel</filename>
-        and <filename>module</filename> classes internally including the
-        <link linkend='ref-classes-kernel-arch'><filename>kernel-arch</filename></link>,
-        <link linkend='ref-classes-module-base'><filename>module-base</filename></link>,
-        and
-        <link linkend='ref-classes-linux-kernel-base'><filename>linux-kernel-base</filename></link>
-        classes.
-    </para>
-</section>
-
-<section id='ref-classes-kernel-arch'>
-    <title><filename>kernel-arch.bbclass</filename></title>
-
-    <para>
-        The <filename>kernel-arch</filename> class
-        sets the <filename>ARCH</filename> environment variable for Linux
-        kernel compilation (including modules).
-    </para>
-</section>
-
-<section id='ref-classes-kernel-devicetree'>
-    <title><filename>kernel-devicetree.bbclass</filename></title>
-
-    <para>
-        The <filename>kernel-devicetree</filename> class, which is inherited by
-        the
-        <link linkend='ref-classes-kernel'><filename>kernel</filename></link>
-        class, supports device tree generation.
-    </para>
-</section>
-
-<section id='ref-classes-kernel-fitimage'>
-    <title><filename>kernel-fitimage.bbclass</filename></title>
-
-    <para>
-        The <filename>kernel-fitimage</filename> class provides support to
-        pack a kernel Image, device trees and a RAM disk into a single
-        FIT image. In theory, a FIT image can support any number of kernels,
-        RAM disks and device-trees.
-        However, <filename>kernel-fitimage</filename> currently only supports
-        limited usescases: just one kernel image, an optional RAM disk, and
-        any number of device tree.
-    </para>
-
-    <para>
-        To create a FIT image, it is required that
-        <filename><link linkend='var-KERNEL_CLASSES'>KERNEL_CLASSES</link></filename>
-        is set to "kernel-fitimage" and
-        <filename><link linkend='var-KERNEL_IMAGETYPE'>KERNEL_IMAGETYPE</link></filename>
-        is set to "fitImage".
-    </para>
-
-    <para>
-        The options for the device tree compiler passed to mkimage -D feature
-        when creating the FIT image are specified using the
-        <filename><link linkend='var-UBOOT_MKIMAGE_DTCOPTS'>UBOOT_MKIMAGE_DTCOPTS</link></filename>
-        variable.
-    </para>
-
-    <para>
-        Only a single kernel can be added to the FIT image created by
-        <filename>kernel-fitimage</filename> and the kernel image in FIT is
-        mandatory.
-        The address where the kernel image is to be loaded by U-boot is
-        specified by
-        <filename><link linkend='var-UBOOT_LOADADDRESS'>UBOOT_LOADADDRESS</link></filename>
-        and the entrypoint by
-        <filename><link linkend='var-UBOOT_ENTRYPOINT'>UBOOT_ENTRYPOINT</link></filename>.
-    </para>
-
-    <para>
-        Multiple device trees can be added to the FIT image created by
-        <filename>kernel-fitimage</filename> and the device tree is optional.
-        The address where the device tree is to be loaded by U-boot is
-        specified by
-        <filename><link linkend='var-UBOOT_DTBO_LOADADDRESS'>UBOOT_DTBO_LOADADDRESS</link></filename>
-        for device tree overlays and by
-        <filename><link linkend='var-UBOOT_DTB_LOADADDRESS'>UBOOT_DTB_LOADADDRESS</link></filename>
-        for device tree binaries.
-    </para>
-
-    <para>
-        Only a single RAM disk can be added to the FIT image created by
-        <filename>kernel-fitimage</filename> and the RAM disk in FIT is
-        optional.
-        The address where the RAM disk image is to be loaded by U-boot
-        is specified by
-        <filename><link linkend='var-UBOOT_RD_LOADADDRESS'>UBOOT_RD_LOADADDRESS</link></filename>
-        and the entrypoint by
-        <filename><link linkend='var-UBOOT_RD_ENTRYPOINT'>UBOOT_RD_ENTRYPOINT</link></filename>.
-        The ramdisk is added to FIT image when
-        <filename><link linkend='var-INITRAMFS_IMAGE'>INITRAMFS_IMAGE</link></filename>
-        is specified.
-    </para>
-
-    <para>
-        The FIT image generated by <filename>kernel-fitimage</filename> class
-        is signed when the variables
-        <filename><link linkend='var-UBOOT_SIGN_ENABLE'>UBOOT_SIGN_ENABLE</link></filename>,
-        <filename><link linkend='var-UBOOT_MKIMAGE_DTCOPTS'>UBOOT_MKIMAGE_DTCOPTS</link></filename>,
-        <filename><link linkend='var-UBOOT_SIGN_KEYDIR'>UBOOT_SIGN_KEYDIR</link></filename>
-        and
-        <filename><link linkend='var-UBOOT_SIGN_KEYNAME'>UBOOT_SIGN_KEYNAME</link></filename>
-        are set appropriately.
-        The default values used for
-        <filename><link linkend='var-FIT_HASH_ALG'>FIT_HASH_ALG</link></filename>
-        and
-        <filename><link linkend='var-FIT_SIGN_ALG'>FIT_SIGN_ALG</link></filename>
-        in <filename>kernel-fitimage</filename> are "sha256" and "rsa2048"
-        respectively.
-    </para>
-
-</section>
-
-<section id='ref-classes-kernel-grub'>
-    <title><filename>kernel-grub.bbclass</filename></title>
-
-    <para>
-        The <filename>kernel-grub</filename> class updates the boot area and
-        the boot menu with the kernel as the priority boot mechanism while
-        installing a RPM to update the kernel on a deployed target.
-    </para>
-</section>
-
-<section id='ref-classes-kernel-module-split'>
-    <title><filename>kernel-module-split.bbclass</filename></title>
-
-    <para>
-        The <filename>kernel-module-split</filename> class
-        provides common functionality for splitting Linux kernel modules into
-        separate packages.
-    </para>
-</section>
-
-<section id='ref-classes-kernel-uboot'>
-    <title><filename>kernel-uboot.bbclass</filename></title>
-
-    <para>
-        The <filename>kernel-uboot</filename> class provides support for
-        building from vmlinux-style kernel sources.
-    </para>
-</section>
-
-<section id='ref-classes-kernel-uimage'>
-    <title><filename>kernel-uimage.bbclass</filename></title>
-
-    <para>
-        The <filename>kernel-uimage</filename> class provides support to
-        pack uImage.
-    </para>
-</section>
-
-<section id='ref-classes-kernel-yocto'>
-    <title><filename>kernel-yocto.bbclass</filename></title>
-
-    <para>
-        The <filename>kernel-yocto</filename> class
-        provides common functionality for building from linux-yocto style
-        kernel source repositories.
-    </para>
-</section>
-
-<section id='ref-classes-kernelsrc'>
-    <title><filename>kernelsrc.bbclass</filename></title>
-
-    <para>
-        The <filename>kernelsrc</filename> class sets the Linux kernel
-        source and version.
-    </para>
-</section>
-
-<section id='ref-classes-lib_package'>
-    <title><filename>lib_package.bbclass</filename></title>
-
-    <para>
-        The <filename>lib_package</filename> class
-        supports recipes that build libraries and produce executable
-        binaries, where those binaries should not be installed by default
-        along with the library.
-        Instead, the binaries are added to a separate
-        <filename>${</filename><link linkend='var-PN'><filename>PN</filename></link><filename>}-bin</filename>
-        package to make their installation optional.
-    </para>
-</section>
-
-<section id='ref-classes-libc*'>
-    <title><filename>libc*.bbclass</filename></title>
-
-    <para>
-        The <filename>libc*</filename> classes support recipes that build
-        packages with <filename>libc</filename>:
-        <itemizedlist>
-            <listitem><para>The <filename>libc-common</filename> class
-                provides common support for building with
-                <filename>libc</filename>.
-                </para></listitem>
-            <listitem><para>The <filename>libc-package</filename> class
-                supports packaging up <filename>glibc</filename> and
-                <filename>eglibc</filename>.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='ref-classes-license'>
-    <title><filename>license.bbclass</filename></title>
-
-    <para>
-        The <filename>license</filename> class provides license
-        manifest creation and license exclusion.
-        This class is enabled by default using the default value for the
-        <link linkend='var-INHERIT_DISTRO'><filename>INHERIT_DISTRO</filename></link>
-        variable.
-    </para>
-</section>
-
-<section id='ref-classes-linux-kernel-base'>
-    <title><filename>linux-kernel-base.bbclass</filename></title>
-
-    <para>
-        The <filename>linux-kernel-base</filename> class
-        provides common functionality for recipes that build out of the Linux
-        kernel source tree.
-        These builds goes beyond the kernel itself.
-        For example, the Perf recipe also inherits this class.
-    </para>
-</section>
-
-<section id='ref-classes-linuxloader'>
-    <title><filename>linuxloader.bbclass</filename></title>
-
-    <para>
-        Provides the function <filename>linuxloader()</filename>, which gives
-        the value of the dynamic loader/linker provided on the platform.
-        This value is used by a number of other classes.
-    </para>
-</section>
-
-<section id='ref-classes-logging'>
-    <title><filename>logging.bbclass</filename></title>
-
-    <para>
-        The <filename>logging</filename> class provides the standard
-        shell functions used to log messages for various BitBake severity levels
-        (i.e. <filename>bbplain</filename>, <filename>bbnote</filename>,
-        <filename>bbwarn</filename>, <filename>bberror</filename>,
-        <filename>bbfatal</filename>, and <filename>bbdebug</filename>).
-    </para>
-
-    <para>
-        This class is enabled by default since it is inherited by
-        the <filename>base</filename> class.
-    </para>
-</section>
-
-<section id='ref-classes-meta'>
-    <title><filename>meta.bbclass</filename></title>
-
-    <para>
-        The <filename>meta</filename> class is inherited by recipes
-        that do not build any output packages themselves, but act as a "meta"
-        target for building other recipes.
-    </para>
-</section>
-
-<section id='ref-classes-metadata_scm'>
-    <title><filename>metadata_scm.bbclass</filename></title>
-
-    <para>
-        The <filename>metadata_scm</filename> class provides functionality for
-        querying the branch and revision of a Source Code Manager (SCM)
-        repository.
-    </para>
-
-    <para>
-        The <link linkend='ref-classes-base'><filename>base</filename></link>
-        class uses this class to print the revisions of each layer before
-        starting every build.
-        The <filename>metadata_scm</filename> class is enabled by default
-        because it is inherited by the <filename>base</filename> class.
-    </para>
-</section>
-
-<section id='ref-classes-migrate_localcount'>
-    <title><filename>migrate_localcount.bbclass</filename></title>
-
-    <para>
-        The <filename>migrate_localcount</filename> class verifies a recipe's
-        localcount data and increments it appropriately.
-    </para>
-</section>
-
-<section id='ref-classes-mime'>
-    <title><filename>mime.bbclass</filename></title>
-
-    <para>
-        The <filename>mime</filename> class generates the proper
-        post-install and post-remove (postinst/postrm) scriptlets for packages
-        that install MIME type files.
-        These scriptlets call <filename>update-mime-database</filename> to add
-        the MIME types to the shared database.
-    </para>
-</section>
-
-<section id='ref-classes-mirrors'>
-    <title><filename>mirrors.bbclass</filename></title>
-
-    <para>
-        The <filename>mirrors</filename> class sets up some standard
-        <link linkend='var-MIRRORS'><filename>MIRRORS</filename></link> entries
-        for source code mirrors.
-        These mirrors provide a fall-back path in case the upstream source
-        specified in
-        <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>
-        within recipes is unavailable.
-    </para>
-
-    <para>
-        This class is enabled by default since it is inherited by the
-        <link linkend='ref-classes-base'><filename>base</filename></link> class.
-    </para>
-</section>
-
-<section id='ref-classes-module'>
-    <title><filename>module.bbclass</filename></title>
-
-    <para>
-        The <filename>module</filename> class provides support for building
-        out-of-tree Linux kernel modules.
-        The class inherits the
-        <link linkend='ref-classes-module-base'><filename>module-base</filename></link>
-        and
-        <link linkend='ref-classes-kernel-module-split'><filename>kernel-module-split</filename></link>
-        classes, and implements the
-        <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>
-        and
-        <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-        tasks.
-        The class provides everything needed to build and package a kernel
-        module.
-    </para>
-
-    <para>
-        For general information on out-of-tree Linux kernel modules, see the
-        "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#incorporating-out-of-tree-modules'>Incorporating Out-of-Tree Modules</ulink>"
-        section in the Yocto Project Linux Kernel Development Manual.
-    </para>
-</section>
-
-<section id='ref-classes-module-base'>
-    <title><filename>module-base.bbclass</filename></title>
-
-    <para>
-        The <filename>module-base</filename> class provides the base
-        functionality for building Linux kernel modules.
-        Typically, a recipe that builds software that includes one or
-        more kernel modules and has its own means of building
-        the module inherits this class as opposed to inheriting the
-        <link linkend='ref-classes-module'><filename>module</filename></link>
-        class.
-    </para>
-</section>
-
-<section id='ref-classes-multilib*'>
-    <title><filename>multilib*.bbclass</filename></title>
-
-    <para>
-        The <filename>multilib*</filename> classes provide support
-        for building libraries with different target optimizations or target
-        architectures and installing them side-by-side in the same image.
-    </para>
-
-    <para>
-        For more information on using the Multilib feature, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#combining-multiple-versions-library-files-into-one-image'>Combining Multiple Versions of Library Files into One Image</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-</section>
-
-<section id='ref-classes-native'>
-    <title><filename>native.bbclass</filename></title>
-
-    <para>
-        The <filename>native</filename> class provides common
-        functionality for recipes that build tools to run on the
-        <link linkend='hardware-build-system-term'>build host</link>
-        (i.e. tools that use the compiler or other tools from the
-        build host).
-    </para>
-
-    <para>
-        You can create a recipe that builds tools that run natively on the
-        host a couple different ways:
-        <itemizedlist>
-            <listitem><para>
-                Create a
-                <replaceable>myrecipe</replaceable><filename>-native.bb</filename>
-                recipe that inherits the <filename>native</filename> class.
-                If you use this method, you must order the inherit statement
-                in the recipe after all other inherit statements so that the
-                <filename>native</filename> class is inherited last.
-                <note><title>Warning</title>
-                    When creating a recipe this way, the recipe name must
-                    follow this naming convention:
-                    <literallayout class='monospaced'>
-     <replaceable>myrecipe</replaceable>-native.bb
-                    </literallayout>
-                    Not using this naming convention can lead to subtle
-                    problems caused by existing code that depends on that
-                    naming convention.
-                </note>
-                </para></listitem>
-            <listitem><para>
-                Create or modify a target recipe that contains the following:
-                <literallayout class='monospaced'>
-     <link linkend='var-BBCLASSEXTEND'><filename>BBCLASSEXTEND</filename></link> = "native"
-                </literallayout>
-                Inside the recipe, use <filename>_class-native</filename> and
-                <filename>_class-target</filename> overrides to specify any
-                functionality specific to the respective native or target
-                case.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        Although applied differently, the <filename>native</filename> class is
-        used with both methods.
-        The advantage of the second method is that you do not need to have two
-        separate recipes (assuming you need both) for native and target.
-        All common parts of the recipe are automatically shared.
-    </para>
-</section>
-
-<section id='ref-classes-nativesdk'>
-    <title><filename>nativesdk.bbclass</filename></title>
-
-    <para>
-        The <filename>nativesdk</filename> class provides common
-        functionality for recipes that wish to build tools to run as part of
-        an SDK (i.e. tools that run on
-        <link linkend='var-SDKMACHINE'><filename>SDKMACHINE</filename></link>).
-    </para>
-
-    <para>
-        You can create a recipe that builds tools that run on the SDK machine
-        a couple different ways:
-        <itemizedlist>
-            <listitem><para>Create a
-                <filename>nativesdk-</filename><replaceable>myrecipe</replaceable><filename>.bb</filename>
-                recipe that inherits the <filename>nativesdk</filename> class.
-                If you use this method, you must order the inherit statement
-                in the recipe after all other inherit statements so that the
-                <filename>nativesdk</filename> class is inherited last.
-                </para></listitem>
-            <listitem><para>Create a <filename>nativesdk</filename> variant
-                of any recipe by adding the following:
-                <literallayout class='monospaced'>
-     <link linkend='var-BBCLASSEXTEND'><filename>BBCLASSEXTEND</filename></link> = "nativesdk"
-                </literallayout>
-                Inside the recipe, use <filename>_class-nativesdk</filename> and
-                <filename>_class-target</filename> overrides to specify any
-                functionality specific to the respective SDK machine or target
-                case.</para></listitem>
-        </itemizedlist>
-        <note><title>Warning</title>
-            When creating a recipe, you must follow this naming convention:
-            <literallayout class='monospaced'>
-     nativesdk-<replaceable>myrecipe</replaceable>.bb
-            </literallayout>
-            Not doing so can lead to subtle problems because code exists
-            that depends on the naming convention.
-        </note>
-    </para>
-
-    <para>
-        Although applied differently, the <filename>nativesdk</filename> class
-        is used with both methods.
-        The advantage of the second method is that you do not need to have two
-        separate recipes (assuming you need both) for the SDK machine and the
-        target.
-        All common parts of the recipe are automatically shared.
-    </para>
-</section>
-
-<section id='ref-classes-nopackages'>
-    <title><filename>nopackages.bbclass</filename></title>
-
-    <para>
-        Disables packaging tasks for those recipes and classes where
-        packaging is not needed.
-    </para>
-</section>
-
-<section id='ref-classes-npm'>
-    <title><filename>npm.bbclass</filename></title>
-
-    <para>
-        Provides support for building Node.js software fetched using the
-        <ulink url='https://en.wikipedia.org/wiki/Npm_(software)'>node package manager (NPM)</ulink>.
-        <note>
-            Currently, recipes inheriting this class must use the
-            <filename>npm://</filename> fetcher to have dependencies fetched
-            and packaged automatically.
-        </note>
-        For information on how to create NPM packages, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-node-package-manager-npm-packages'>Creating Node Package Manager (NPM) Packages</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-</section>
-
-<section id='ref-classes-oelint'>
-    <title><filename>oelint.bbclass</filename></title>
-
-    <para>
-        The <filename>oelint</filename> class is an
-        obsolete lint checking tool that exists in
-        <filename>meta/classes</filename> in the
-        <link linkend='source-directory'>Source Directory</link>.
-    </para>
-
-    <para>
-        A number of classes exist that could be generally useful in
-        OE-Core but are never actually used within OE-Core itself.
-        The <filename>oelint</filename> class is one such example.
-        However, being aware of this class can reduce the proliferation of
-        different versions of similar classes across multiple layers.
-    </para>
-</section>
-
-<section id='ref-classes-own-mirrors'>
-    <title><filename>own-mirrors.bbclass</filename></title>
-
-    <para>
-        The <filename>own-mirrors</filename> class makes it
-        easier to set up your own
-        <link linkend='var-PREMIRRORS'><filename>PREMIRRORS</filename></link>
-        from which to first fetch source before attempting to fetch it from the
-        upstream specified in
-        <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>
-        within each recipe.
-    </para>
-
-    <para>
-        To use this class, inherit it globally and specify
-        <link linkend='var-SOURCE_MIRROR_URL'><filename>SOURCE_MIRROR_URL</filename></link>.
-        Here is an example:
-        <literallayout class='monospaced'>
-     INHERIT += "own-mirrors"
-     SOURCE_MIRROR_URL = "http://example.com/my-source-mirror"
-        </literallayout>
-        You can specify only a single URL in
-        <filename>SOURCE_MIRROR_URL</filename>.
-    </para>
-</section>
-
-<section id='ref-classes-package'>
-    <title><filename>package.bbclass</filename></title>
-
-    <para>
-        The <filename>package</filename> class supports generating
-        packages from a build's output.
-        The core generic functionality is in
-        <filename>package.bbclass</filename>.
-        The code specific to particular package types resides in these
-        package-specific classes:
-        <link linkend='ref-classes-package_deb'><filename>package_deb</filename></link>,
-        <link linkend='ref-classes-package_rpm'><filename>package_rpm</filename></link>,
-        <link linkend='ref-classes-package_ipk'><filename>package_ipk</filename></link>,
-        and
-        <link linkend='ref-classes-package_tar'><filename>package_tar</filename></link>.
-        <note><title>Warning</title>
-            The <filename>package_tar</filename> class is broken and not
-            supported.
-            It is recommended that you do not use this class.
-        </note>
-    </para>
-
-    <para>
-        You can control the list of resulting package formats by using the
-        <filename><link linkend='var-PACKAGE_CLASSES'>PACKAGE_CLASSES</link></filename>
-        variable defined in your <filename>conf/local.conf</filename>
-        configuration file, which is located in the
-        <link linkend='build-directory'>Build Directory</link>.
-        When defining the variable, you can specify one or more package types.
-        Since images are generated from packages, a packaging class is
-        needed to enable image generation.
-        The first class listed in this variable is used for image generation.
-    </para>
-
-    <para>
-        If you take the optional step to set up a repository (package feed)
-        on the development host that can be used by DNF, you can
-        install packages from the feed while you are running the image
-        on the target (i.e. runtime installation of packages).
-        For more information, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#using-runtime-package-management'>Using Runtime Package Management</ulink>"
-         section in the Yocto Project Development Tasks Manual.
-    </para>
-
-    <para>
-        The package-specific class you choose can affect build-time performance
-        and has space ramifications.
-        In general, building a package with IPK takes about thirty percent less
-        time as compared to using RPM to build the same or similar package.
-        This comparison takes into account a complete build of the package with
-        all dependencies previously built.
-        The reason for this discrepancy is because the RPM package manager
-        creates and processes more
-        <link linkend='metadata'>Metadata</link> than the
-        IPK package manager.
-        Consequently, you might consider setting
-        <filename>PACKAGE_CLASSES</filename> to "package_ipk" if you are
-        building smaller systems.
-    </para>
-
-    <para>
-        Before making your package manager decision, however, you should
-        consider some further things about using RPM:
-        <itemizedlist>
-            <listitem><para>
-                RPM starts to provide more abilities than IPK due to
-                the fact that it processes more Metadata.
-                For example, this information includes individual file types,
-                file checksum generation and evaluation on install, sparse file
-                support, conflict detection and resolution for Multilib systems,
-                ACID style upgrade, and repackaging abilities for rollbacks.
-                </para></listitem>
-            <listitem><para>
-                For smaller systems, the extra space used for the Berkeley
-                Database and the amount of metadata when using RPM can affect
-                your ability to perform on-device upgrades.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        You can find additional information on the effects of the package
-        class at these two Yocto Project mailing list links:
-        <itemizedlist>
-            <listitem><para><ulink url='&YOCTO_LISTS_URL;/pipermail/poky/2011-May/006362.html'>
-                https://lists.yoctoproject.org/pipermail/poky/2011-May/006362.html</ulink></para></listitem>
-            <listitem><para><ulink url='&YOCTO_LISTS_URL;/pipermail/poky/2011-May/006363.html'>
-                https://lists.yoctoproject.org/pipermail/poky/2011-May/006363.html</ulink></para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='ref-classes-package_deb'>
-    <title><filename>package_deb.bbclass</filename></title>
-
-    <para>
-        The <filename>package_deb</filename> class
-        provides support for creating packages that use the Debian
-        (i.e. <filename>.deb</filename>) file format.
-        The class ensures the packages are written out in a
-        <filename>.deb</filename> file format to the
-        <filename>${</filename><link linkend='var-DEPLOY_DIR_DEB'><filename>DEPLOY_DIR_DEB</filename></link><filename>}</filename>
-        directory.
-    </para>
-
-    <para>
-        This class inherits the
-        <link linkend='ref-classes-package'><filename>package</filename></link>
-        class and is enabled through the
-        <link linkend='var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></link>
-        variable in the <filename>local.conf</filename> file.
-    </para>
-</section>
-
-<section id='ref-classes-package_ipk'>
-    <title><filename>package_ipk.bbclass</filename></title>
-
-    <para>
-        The <filename>package_ipk</filename> class
-        provides support for creating packages that use the IPK
-        (i.e. <filename>.ipk</filename>) file format.
-        The class ensures the packages are written out in a
-        <filename>.ipk</filename> file format to the
-        <filename>${</filename><link linkend='var-DEPLOY_DIR_IPK'><filename>DEPLOY_DIR_IPK</filename></link><filename>}</filename>
-        directory.
-    </para>
-
-    <para>
-        This class inherits the
-        <link linkend='ref-classes-package'><filename>package</filename></link>
-        class and is enabled through the
-        <link linkend='var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></link>
-        variable in the <filename>local.conf</filename> file.
-    </para>
-</section>
-
-<section id='ref-classes-package_rpm'>
-    <title><filename>package_rpm.bbclass</filename></title>
-
-    <para>
-        The <filename>package_rpm</filename> class
-        provides support for creating packages that use the RPM
-        (i.e. <filename>.rpm</filename>) file format.
-        The class ensures the packages are written out in a
-        <filename>.rpm</filename> file format to the
-        <filename>${</filename><link linkend='var-DEPLOY_DIR_RPM'><filename>DEPLOY_DIR_RPM</filename></link><filename>}</filename>
-        directory.
-    </para>
-
-    <para>
-        This class inherits the
-        <link linkend='ref-classes-package'><filename>package</filename></link>
-        class and is enabled through the
-        <link linkend='var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></link>
-        variable in the <filename>local.conf</filename> file.
-    </para>
-</section>
-
-<section id='ref-classes-package_tar'>
-    <title><filename>package_tar.bbclass</filename></title>
-
-    <para>
-        The <filename>package_tar</filename> class
-        provides support for creating tarballs.
-        The class ensures the packages are written out in a
-        tarball format to the
-        <filename>${</filename><link linkend='var-DEPLOY_DIR_TAR'><filename>DEPLOY_DIR_TAR</filename></link><filename>}</filename>
-        directory.
-    </para>
-
-    <para>
-        This class inherits the
-        <link linkend='ref-classes-package'><filename>package</filename></link>
-        class and is enabled through the
-        <link linkend='var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></link>
-        variable in the <filename>local.conf</filename> file.
-        <note>
-            You cannot specify the <filename>package_tar</filename> class
-            first using the <filename>PACKAGE_CLASSES</filename> variable.
-            You must use <filename>.deb</filename>,
-            <filename>.ipk</filename>, or <filename>.rpm</filename> file
-            formats for your image or SDK.
-        </note>
-    </para>
-</section>
-
-<section id='ref-classes-packagedata'>
-    <title><filename>packagedata.bbclass</filename></title>
-
-    <para>
-        The <filename>packagedata</filename> class provides
-        common functionality for reading <filename>pkgdata</filename> files
-        found in
-        <link linkend='var-PKGDATA_DIR'><filename>PKGDATA_DIR</filename></link>.
-        These files contain information about each output package produced by
-        the OpenEmbedded build system.
-    </para>
-
-    <para>
-        This class is enabled by default because it is inherited by the
-        <link linkend='ref-classes-package'><filename>package</filename></link>
-        class.
-    </para>
-</section>
-
-<section id='ref-classes-packagegroup'>
-    <title><filename>packagegroup.bbclass</filename></title>
-
-    <para>
-        The <filename>packagegroup</filename> class sets default values
-        appropriate for package group recipes (e.g.
-        <filename><link linkend='var-PACKAGES'>PACKAGES</link></filename>,
-        <filename><link linkend='var-PACKAGE_ARCH'>PACKAGE_ARCH</link></filename>,
-        <filename><link linkend='var-ALLOW_EMPTY'>ALLOW_EMPTY</link></filename>,
-        and so forth).
-        It is highly recommended that all package group recipes inherit this class.
-    </para>
-
-    <para>
-        For information on how to use this class, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#usingpoky-extend-customimage-customtasks'>Customizing Images Using Custom Package Groups</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-
-    <para>
-        Previously, this class was called the <filename>task</filename> class.
-    </para>
-</section>
-
-<section id='ref-classes-patch'>
-    <title><filename>patch.bbclass</filename></title>
-
-    <para>
-        The <filename>patch</filename> class provides all functionality for
-        applying patches during the
-        <link linkend='ref-tasks-patch'><filename>do_patch</filename></link>
-        task.
-    </para>
-
-    <para>
-        This class is enabled by default because it is inherited by the
-        <link linkend='ref-classes-base'><filename>base</filename></link>
-        class.
-    </para>
-</section>
-
-<section id='ref-classes-perlnative'>
-    <title><filename>perlnative.bbclass</filename></title>
-
-    <para>
-        When inherited by a recipe, the <filename>perlnative</filename> class
-        supports using the native version of Perl built by the build system
-        rather than using the version provided by the build host.
-    </para>
-</section>
-
-<section id='ref-classes-pixbufcache'>
-    <title><filename>pixbufcache.bbclass</filename></title>
-
-    <para>
-        The <filename>pixbufcache</filename> class generates the proper
-        post-install and post-remove (postinst/postrm) scriptlets for packages
-        that install pixbuf loaders, which are used with
-        <filename>gdk-pixbuf</filename>.
-        These scriptlets call <filename>update_pixbuf_cache</filename>
-        to add the pixbuf loaders to the cache.
-        Since the cache files are architecture-specific,
-        <filename>update_pixbuf_cache</filename> is run using QEMU if the
-        postinst scriptlets need to be run on the build host during image
-        creation.
-    </para>
-
-    <para>
-        If the pixbuf loaders being installed are in packages other
-        than the recipe's main package, set
-        <link linkend='var-PIXBUF_PACKAGES'><filename>PIXBUF_PACKAGES</filename></link>
-        to specify the packages containing the loaders.
-    </para>
-</section>
-
-<section id='ref-classes-pkgconfig'>
-    <title><filename>pkgconfig.bbclass</filename></title>
-
-    <para>
-        The <filename>pkgconfig</filename> class provides a standard way to get
-        header and library information by using <filename>pkg-config</filename>.
-        This class aims to smooth integration of
-        <filename>pkg-config</filename> into libraries that use it.
-    </para>
-
-    <para>
-        During staging, BitBake installs <filename>pkg-config</filename>
-        data into the <filename>sysroots/</filename> directory.
-        By making use of sysroot functionality within
-        <filename>pkg-config</filename>, the <filename>pkgconfig</filename>
-        class no longer has to manipulate the files.
-    </para>
-</section>
-
-<section id='ref-classes-populate-sdk'>
-    <title><filename>populate_sdk.bbclass</filename></title>
-
-    <para>
-        The <filename>populate_sdk</filename> class provides support for
-        SDK-only recipes.
-        For information on advantages gained when building a cross-development
-        toolchain using the
-        <link linkend='ref-tasks-populate_sdk'><filename>do_populate_sdk</filename></link>
-        task, see the
-        "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-building-an-sdk-installer'>Building an SDK Installer</ulink>"
-        section in the Yocto Project Application Development and the
-        Extensible Software Development Kit (eSDK) manual.
-    </para>
-</section>
-
-<section id='ref-classes-populate-sdk-*'>
-    <title><filename>populate_sdk_*.bbclass</filename></title>
-
-    <para>
-        The <filename>populate_sdk_*</filename> classes support SDK creation
-        and consist of the following classes:
-        <itemizedlist>
-            <listitem><para><emphasis><filename>populate_sdk_base</filename>:</emphasis>
-                The base class supporting SDK creation under all package
-                managers (i.e. DEB, RPM, and opkg).</para></listitem>
-            <listitem><para><emphasis><filename>populate_sdk_deb</filename>:</emphasis>
-                Supports creation of the SDK given the Debian package manager.
-                </para></listitem>
-            <listitem><para><emphasis><filename>populate_sdk_rpm</filename>:</emphasis>
-                Supports creation of the SDK given the RPM package manager.
-                </para></listitem>
-            <listitem><para><emphasis><filename>populate_sdk_ipk</filename>:</emphasis>
-                Supports creation of the SDK given the opkg (IPK format)
-                package manager.
-                </para></listitem>
-            <listitem><para><emphasis><filename>populate_sdk_ext</filename>:</emphasis>
-                Supports extensible SDK creation under all package managers.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        The <filename>populate_sdk_base</filename> class inherits the
-        appropriate <filename>populate_sdk_*</filename> (i.e.
-        <filename>deb</filename>, <filename>rpm</filename>, and
-        <filename>ipk</filename>) based on
-        <link linkend='var-IMAGE_PKGTYPE'><filename>IMAGE_PKGTYPE</filename></link>.
-    </para>
-
-    <para>
-        The base class ensures all source and destination directories are
-        established and then populates the SDK.
-        After populating the SDK, the <filename>populate_sdk_base</filename>
-        class constructs two sysroots:
-        <filename>${</filename><link linkend='var-SDK_ARCH'><filename>SDK_ARCH</filename></link><filename>}-nativesdk</filename>,
-        which contains the cross-compiler and associated tooling, and the
-        target, which contains a target root filesystem that is configured for
-        the SDK usage.
-        These two images reside in
-        <link linkend='var-SDK_OUTPUT'><filename>SDK_OUTPUT</filename></link>,
-        which consists of the following:
-        <literallayout class='monospaced'>
-     ${SDK_OUTPUT}/${SDK_ARCH}<replaceable>-nativesdk-pkgs</replaceable>
-     ${SDK_OUTPUT}/${SDKTARGETSYSROOT}/<replaceable>target-pkgs</replaceable>
-        </literallayout>
-    </para>
-
-    <para>
-        Finally, the base populate SDK class creates the toolchain
-        environment setup script, the tarball of the SDK, and the installer.
-    </para>
-
-    <para>
-        The respective <filename>populate_sdk_deb</filename>,
-        <filename>populate_sdk_rpm</filename>, and
-        <filename>populate_sdk_ipk</filename> classes each support the
-        specific type of SDK.
-        These classes are inherited by and used with the
-        <filename>populate_sdk_base</filename> class.
-    </para>
-
-    <para>
-        For more information on the cross-development toolchain
-        generation, see the
-        "<ulink url='&YOCTO_DOCS_OM_URL;#cross-development-toolchain-generation'>Cross-Development Toolchain Generation</ulink>"
-        section in the Yocto Project Overview and Concepts Manual.
-        For information on advantages gained when building a
-        cross-development toolchain using the
-        <link linkend='ref-tasks-populate_sdk'><filename>do_populate_sdk</filename></link>
-        task, see the
-        "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-building-an-sdk-installer'>Building an SDK Installer</ulink>"
-        section in the Yocto Project Application Development and the
-        Extensible Software Development Kit (eSDK) manual.
-    </para>
-</section>
-
-<section id='ref-classes-prexport'>
-    <title><filename>prexport.bbclass</filename></title>
-
-    <para>
-        The <filename>prexport</filename> class provides functionality for
-        exporting
-        <link linkend='var-PR'><filename>PR</filename></link> values.
-        <note>
-            This class is not intended to be used directly.
-            Rather, it is enabled when using
-            "<filename>bitbake-prserv-tool export</filename>".
-        </note>
-    </para>
-</section>
-
-<section id='ref-classes-primport'>
-    <title><filename>primport.bbclass</filename></title>
-
-    <para>
-        The <filename>primport</filename> class provides functionality for
-        importing
-        <link linkend='var-PR'><filename>PR</filename></link> values.
-        <note>
-            This class is not intended to be used directly.
-            Rather, it is enabled when using
-            "<filename>bitbake-prserv-tool import</filename>".
-        </note>
-    </para>
-</section>
-
-<section id='ref-classes-prserv'>
-    <title><filename>prserv.bbclass</filename></title>
-
-    <para>
-        The <filename>prserv</filename> class provides functionality for
-        using a
-        <ulink url='&YOCTO_DOCS_DEV_URL;#working-with-a-pr-service'>PR service</ulink>
-        in order to automatically manage the incrementing of the
-        <link linkend='var-PR'><filename>PR</filename></link> variable for
-        each recipe.
-    </para>
-
-    <para>
-        This class is enabled by default because it is inherited by the
-        <link linkend='ref-classes-package'><filename>package</filename></link>
-        class.
-        However, the OpenEmbedded build system will not enable the
-        functionality of this class unless
-        <link linkend='var-PRSERV_HOST'><filename>PRSERV_HOST</filename></link>
-        has been set.
-    </para>
-</section>
-
-<section id='ref-classes-ptest'>
-    <title><filename>ptest.bbclass</filename></title>
-
-    <para>
-        The <filename>ptest</filename> class provides functionality for
-        packaging and installing runtime tests for recipes that build software
-        that provides these tests.
-    </para>
-
-    <para>
-        This class is intended to be inherited by individual recipes.
-        However, the class' functionality is largely disabled unless "ptest"
-        appears in
-        <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>.
-        See the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#testing-packages-with-ptest'>Testing Packages With ptest</ulink>"
-        section in the Yocto Project Development Tasks Manual for more
-        information on ptest.
-    </para>
-</section>
-
-<section id='ref-classes-ptest-gnome'>
-    <title><filename>ptest-gnome.bbclass</filename></title>
-
-    <para>
-        Enables package tests (ptests) specifically for GNOME packages,
-        which have tests intended to be executed with
-        <filename>gnome-desktop-testing</filename>.
-    </para>
-
-    <para>
-        For information on setting up and running ptests, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#testing-packages-with-ptest'>Testing Packages With ptest</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-</section>
-
-<section id='ref-classes-python-dir'>
-    <title><filename>python-dir.bbclass</filename></title>
-
-    <para>
-        The <filename>python-dir</filename> class provides the base version,
-        location, and site package location for Python.
-    </para>
-</section>
-
-<section id='ref-classes-python3native'>
-    <title><filename>python3native.bbclass</filename></title>
-
-    <para>
-        The <filename>python3native</filename> class supports using the
-        native version of Python 3 built by the build system rather than
-        support of the version provided by the build host.
-    </para>
-</section>
-
-<section id='ref-classes-pythonnative'>
-    <title><filename>pythonnative.bbclass</filename></title>
-
-    <para>
-        When inherited by a recipe, the <filename>pythonnative</filename> class
-        supports using the native version of Python built by the build system
-        rather than using the version provided by the build host.
-    </para>
-</section>
-
-<section id='ref-classes-qemu'>
-    <title><filename>qemu.bbclass</filename></title>
-
-    <para>
-        The <filename>qemu</filename> class provides functionality for recipes
-        that either need QEMU or test for the existence of QEMU.
-        Typically, this class is used to run programs for a target system on
-        the build host using QEMU's application emulation mode.
-    </para>
-</section>
-
-<section id='ref-classes-recipe_sanity'>
-    <title><filename>recipe_sanity.bbclass</filename></title>
-
-    <para>
-        The <filename>recipe_sanity</filename> class checks for the presence
-        of any host system recipe prerequisites that might affect the
-        build (e.g. variables that are set or software that is present).
-    </para>
-</section>
-
-<section id='ref-classes-relocatable'>
-    <title><filename>relocatable.bbclass</filename></title>
-
-    <para>
-        The <filename>relocatable</filename> class enables relocation of
-        binaries when they are installed into the sysroot.
-    </para>
-
-    <para>
-        This class makes use of the
-        <link linkend='ref-classes-chrpath'><filename>chrpath</filename></link>
-        class and is used by both the
-        <link linkend='ref-classes-cross'><filename>cross</filename></link>
-        and
-        <link linkend='ref-classes-native'><filename>native</filename></link>
-        classes.
-    </para>
-</section>
-
-<section id='ref-classes-remove-libtool'>
-    <title><filename>remove-libtool.bbclass</filename></title>
-
-    <para>
-        The <filename>remove-libtool</filename> class adds a post function
-        to the
-        <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-        task to remove all <filename>.la</filename> files installed by
-        <filename>libtool</filename>.
-        Removing these files results in them being absent from both the
-        sysroot and target packages.
-    </para>
-
-    <para>
-        If a recipe needs the <filename>.la</filename> files to be installed,
-        then the recipe can override the removal by setting
-        <filename>REMOVE_LIBTOOL_LA</filename> to "0" as follows:
-        <literallayout class='monospaced'>
-     REMOVE_LIBTOOL_LA = "0"
-        </literallayout>
-        <note>
-            The <filename>remove-libtool</filename> class is not enabled by
-            default.
-        </note>
-    </para>
-</section>
-
-<section id='ref-classes-report-error'>
-    <title><filename>report-error.bbclass</filename></title>
-
-    <para>
-        The <filename>report-error</filename> class supports enabling the
-        <ulink url='&YOCTO_DOCS_DEV_URL;#using-the-error-reporting-tool'>error reporting tool</ulink>,
-        which allows you to submit build error information to a central
-        database.
-    </para>
-
-    <para>
-        The class collects debug information for recipe, recipe version, task,
-        machine, distro, build system, target system, host distro, branch,
-        commit, and log.
-        From the information, report files using a JSON format are created and
-        stored in
-        <filename>${</filename><link linkend='var-LOG_DIR'><filename>LOG_DIR</filename></link><filename>}/error-report</filename>.
-    </para>
-</section>
-
-<section id='ref-classes-rm-work'>
-    <title><filename>rm_work.bbclass</filename></title>
-
-    <para>
-        The <filename>rm_work</filename> class supports deletion of temporary
-        workspace, which can ease your hard drive demands during builds.
-    </para>
-
-    <para>
-        The OpenEmbedded build system can use a substantial amount of disk
-        space during the build process.
-        A portion of this space is the work files under the
-        <filename>${TMPDIR}/work</filename> directory for each recipe.
-        Once the build system generates the packages for a recipe, the work
-        files for that recipe are no longer needed.
-        However, by default, the build system preserves these files
-        for inspection and possible debugging purposes.
-        If you would rather have these files deleted to save disk space
-        as the build progresses, you can enable <filename>rm_work</filename>
-        by adding the following to your <filename>local.conf</filename> file,
-        which is found in the
-        <link linkend='build-directory'>Build Directory</link>.
-        <literallayout class='monospaced'>
-    INHERIT += "rm_work"
-        </literallayout>
-        If you are modifying and building source code out of the work directory
-        for a recipe, enabling <filename>rm_work</filename> will potentially
-        result in your changes to the source being lost.
-        To exclude some recipes from having their work directories deleted by
-        <filename>rm_work</filename>, you can add the names of the recipe or
-        recipes you are working on to the <filename>RM_WORK_EXCLUDE</filename>
-        variable, which can also be set in your <filename>local.conf</filename>
-        file.
-        Here is an example:
-        <literallayout class='monospaced'>
-    RM_WORK_EXCLUDE += "busybox glibc"
-        </literallayout>
-    </para>
-</section>
-
-<section id='ref-classes-rootfs*'>
-    <title><filename>rootfs*.bbclass</filename></title>
-
-    <para>
-        The <filename>rootfs*</filename> classes support creating
-        the root filesystem for an image and consist of the following classes:
-        <itemizedlist>
-            <listitem><para>
-                The <filename>rootfs-postcommands</filename> class, which
-                defines filesystem post-processing functions for image recipes.
-                </para></listitem>
-            <listitem><para>
-                The <filename>rootfs_deb</filename> class, which supports
-                creation of root filesystems for images built using
-                <filename>.deb</filename> packages.</para></listitem>
-            <listitem><para>
-                The <filename>rootfs_rpm</filename> class, which supports
-                creation of root filesystems for images built using
-                <filename>.rpm</filename> packages.</para></listitem>
-            <listitem><para>
-                The <filename>rootfs_ipk</filename> class, which supports
-                creation of root filesystems for images built using
-                <filename>.ipk</filename> packages.</para></listitem>
-            <listitem><para>
-                The <filename>rootfsdebugfiles</filename> class, which installs
-                additional files found on the build host directly into the
-                root filesystem.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        The root filesystem is created from packages using one of the
-        <filename>rootfs*.bbclass</filename> files as determined by the
-        <link linkend='var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></link>
-        variable.
-    </para>
-
-    <para>
-        For information on how root filesystem images are created, see the
-        "<ulink url='&YOCTO_DOCS_OM_URL;#image-generation-dev-environment'>Image Generation</ulink>"
-        section in the Yocto Project Overview and Concepts Manual.
-    </para>
-</section>
-
-<section id='ref-classes-sanity'>
-    <title><filename>sanity.bbclass</filename></title>
-
-    <para>
-        The <filename>sanity</filename> class checks to see if prerequisite
-        software is present on the host system so that users can be notified
-        of potential problems that might affect their build.
-        The class also performs basic user configuration checks from
-        the <filename>local.conf</filename> configuration file to
-        prevent common mistakes that cause build failures.
-        Distribution policy usually determines whether to include this class.
-    </para>
-</section>
-
-<section id='ref-classes-scons'>
-    <title><filename>scons.bbclass</filename></title>
-
-    <para>
-        The <filename>scons</filename> class supports recipes that need to
-        build software that uses the SCons build system.
-        You can use the
-        <link linkend='var-EXTRA_OESCONS'><filename>EXTRA_OESCONS</filename></link>
-        variable to specify additional configuration options you want to pass
-        SCons command line.
-    </para>
-</section>
-
-<section id='ref-classes-sdl'>
-    <title><filename>sdl.bbclass</filename></title>
-
-    <para>
-        The <filename>sdl</filename> class supports recipes that need to build
-        software that uses the Simple DirectMedia Layer (SDL) library.
-    </para>
-</section>
-
-<section id='ref-classes-setuptools'>
-    <title><filename>setuptools.bbclass</filename></title>
-
-    <para>
-        The <filename>setuptools</filename> class supports Python
-        version 2.x extensions that use build systems based on
-        <filename>setuptools</filename>.
-        If your recipe uses these build systems, the recipe needs to
-        inherit the <filename>setuptools</filename> class.
-    </para>
-</section>
-
-<section id='ref-classes-setuptools3'>
-    <title><filename>setuptools3.bbclass</filename></title>
-
-    <para>
-        The <filename>setuptools3</filename> class supports Python
-        version 3.x extensions that use build systems based on
-        <filename>setuptools3</filename>.
-        If your recipe uses these build systems, the recipe needs to
-        inherit the <filename>setuptools3</filename> class.
-    </para>
-</section>
-
-<section id='ref-classes-sign_rpm'>
-    <title><filename>sign_rpm.bbclass</filename></title>
-
-    <para>
-        The <filename>sign_rpm</filename> class supports generating signed
-        RPM packages.
-    </para>
-</section>
-
-<section id='ref-classes-sip'>
-    <title><filename>sip.bbclass</filename></title>
-
-    <para>
-        The <filename>sip</filename> class
-        supports recipes that build or package SIP-based Python bindings.
-    </para>
-</section>
-
-<section id='ref-classes-siteconfig'>
-    <title><filename>siteconfig.bbclass</filename></title>
-
-    <para>
-        The <filename>siteconfig</filename> class
-        provides functionality for handling site configuration.
-        The class is used by the
-        <link linkend='ref-classes-autotools'><filename>autotools</filename></link>
-        class to accelerate the
-        <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>
-        task.
-    </para>
-</section>
-
-<section id='ref-classes-siteinfo'>
-    <title><filename>siteinfo.bbclass</filename></title>
-
-    <para>
-        The <filename>siteinfo</filename> class provides information about
-        the targets that might be needed by other classes or recipes.
-    </para>
-
-    <para>
-        As an example, consider Autotools, which can require tests that must
-        execute on the target hardware.
-        Since this is not possible in general when cross compiling, site
-        information is used to provide cached test results so these tests can
-        be skipped over but still make the correct values available.
-        The
-        <filename><link linkend='structure-meta-site'>meta/site directory</link></filename>
-        contains test results sorted into different categories such as
-        architecture, endianness, and the <filename>libc</filename> used.
-        Site information provides a list of files containing data relevant to
-        the current build in the
-        <filename><link linkend='var-CONFIG_SITE'>CONFIG_SITE</link></filename> variable
-        that Autotools automatically picks up.
-    </para>
-
-    <para>
-        The class also provides variables like
-        <filename><link linkend='var-SITEINFO_ENDIANNESS'>SITEINFO_ENDIANNESS</link></filename>
-        and <filename><link linkend='var-SITEINFO_BITS'>SITEINFO_BITS</link></filename>
-        that can be used elsewhere in the metadata.
-    </para>
-</section>
-
-<section id='ref-classes-spdx'>
-    <title><filename>spdx.bbclass</filename></title>
-
-    <para>
-        The <filename>spdx</filename> class integrates real-time license
-        scanning, generation of SPDX standard output, and verification
-        of license information during the build.
-        <note>
-            This class is currently at the prototype stage in the 1.6
-            release.
-        </note>
-    </para>
-</section>
-
-<section id='ref-classes-sstate'>
-    <title><filename>sstate.bbclass</filename></title>
-
-    <para>
-        The <filename>sstate</filename> class provides support for Shared
-        State (sstate).
-        By default, the class is enabled through the
-        <link linkend='var-INHERIT_DISTRO'><filename>INHERIT_DISTRO</filename></link>
-        variable's default value.
-    </para>
-
-    <para>
-        For more information on sstate, see the
-        "<ulink url='&YOCTO_DOCS_OM_URL;#shared-state-cache'>Shared State Cache</ulink>"
-        section in the Yocto Project Overview and Concepts Manual.
-    </para>
-</section>
-
-<section id='ref-classes-staging'>
-    <title><filename>staging.bbclass</filename></title>
-
-    <para>
-        The <filename>staging</filename> class installs files into individual
-        recipe work directories for sysroots.
-        The class contains the following key tasks:
-        <itemizedlist>
-            <listitem><para>
-                The
-                <link linkend='ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></link>
-                task, which is responsible for handing the files that end up
-                in the recipe sysroots.
-                </para></listitem>
-            <listitem><para>
-                The
-                <link linkend='ref-tasks-prepare_recipe_sysroot'><filename>do_prepare_recipe_sysroot</filename></link>
-                task (a "partner" task to the
-                <filename>populate_sysroot</filename> task), which installs
-                the files into the individual recipe work directories (i.e.
-                <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>).
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        The code in the <filename>staging</filename> class is complex and
-        basically works in two stages:
-        <itemizedlist>
-            <listitem><para>
-                <emphasis>Stage One:</emphasis>
-                The first stage addresses recipes that have files they want
-                to share with other recipes that have dependencies on the
-                originating recipe.
-                Normally these dependencies are installed through the
-                <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-                task into
-                <filename>${</filename><link linkend='var-D'><filename>D</filename></link><filename>}</filename>.
-                The <filename>do_populate_sysroot</filename> task copies
-                a subset of these files into
-                <filename>${SYSROOT_DESTDIR}</filename>.
-                This subset of files is controlled by the
-                <link linkend='var-SYSROOT_DIRS'><filename>SYSROOT_DIRS</filename></link>,
-                <link linkend='var-SYSROOT_DIRS_NATIVE'><filename>SYSROOT_DIRS_NATIVE</filename></link>,
-                and
-                <link linkend='var-SYSROOT_DIRS_BLACKLIST'><filename>SYSROOT_DIRS_BLACKLIST</filename></link>
-                variables.
-                <note>
-                    Additionally, a recipe can customize the files further by
-                declaring a processing function in the
-                    <link linkend='var-SYSROOT_PREPROCESS_FUNCS'><filename>SYSROOT_PREPROCESS_FUNCS</filename></link>
-                    variable.
-                </note>
-                </para>
-
-                <para>
-                A shared state (sstate) object is built from these files
-                and the files are placed into a subdirectory of
-                <link linkend='structure-build-tmp-sysroots-components'><filename>tmp/sysroots-components/</filename></link>.
-                The files are scanned for hardcoded paths to the original
-                installation location.
-                If the location is found in text files, the hardcoded
-                locations are replaced by tokens and a list of the files
-                needing such replacements is created.
-                These adjustments are referred to as "FIXMEs".
-                The list of files that are scanned for paths is controlled by
-                the
-                <link linkend='var-SSTATE_SCAN_FILES'><filename>SSTATE_SCAN_FILES</filename></link>
-                variable.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Stage Two:</emphasis>
-                The second stage addresses recipes that want to use something
-                from another recipe and declare a dependency on that recipe
-                through the
-                <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>
-                variable.
-                The recipe will have a
-                <link linkend='ref-tasks-prepare_recipe_sysroot'><filename>do_prepare_recipe_sysroot</filename></link>
-                task and when
-                this task executes, it creates the
-                <filename>recipe-sysroot</filename> and
-                <filename>recipe-sysroot-native</filename> in the recipe
-                work directory (i.e.
-                <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>).
-                The OpenEmbedded build system creates hard links to copies of the
-                relevant files from <filename>sysroots-components</filename>
-                into the recipe work directory.
-                <note>
-                    If hard links are not possible, the build system uses
-                    actual copies.
-                </note>
-                The build system then addresses any "FIXMEs" to paths as
-                defined from the list created in the first stage.
-                </para>
-
-                <para>
-                Finally, any files in <filename>${bindir}</filename>
-                within the sysroot that have the prefix
-                "<filename>postinst-</filename>" are executed.
-                <note>
-                    Although such sysroot post installation scripts are not
-                    recommended for general use, the files do allow some issues
-                    such as user creation and module indexes to be addressed.
-                </note>
-                </para>
-
-                <para>
-                Because recipes can have other dependencies outside of
-                <filename>DEPENDS</filename> (e.g.
-                <filename>do_unpack[depends] += "tar-native:do_populate_sysroot"</filename>),
-                the sysroot creation function
-                <filename>extend_recipe_sysroot</filename> is also added as
-                a pre-function for those tasks whose dependencies are not
-                through <filename>DEPENDS</filename> but operate similarly.
-                </para>
-
-                <para>
-                When installing dependencies into the sysroot, the code
-                traverses the dependency graph and processes dependencies
-                in exactly the same way as the dependencies would or would not
-                be when installed from sstate.
-                This processing means, for example, a native tool would have
-                its native dependencies added but a target library would not
-                have its dependencies traversed or installed.
-                The same sstate dependency code is used so that
-                builds should be identical regardless of whether sstate
-                was used or not.
-                For a closer look, see the
-                <filename>setscene_depvalid()</filename> function in the
-                <link linkend='ref-classes-sstate'><filename>sstate</filename></link>
-                class.
-                </para>
-
-                <para>
-                The build system is careful to maintain manifests of the files
-                it installs so that any given dependency can be installed as
-                needed.
-                The sstate hash of the installed item is also stored so that
-                if it changes, the build system can reinstall it.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='ref-classes-syslinux'>
-    <title><filename>syslinux.bbclass</filename></title>
-
-    <para>
-        The <filename>syslinux</filename> class provides syslinux-specific
-        functions for building bootable images.
-    </para>
-
-    <para>
-        The class supports the following variables:
-        <itemizedlist>
-            <listitem><para><link linkend='var-INITRD'><filename>INITRD</filename></link>:
-                Indicates list of filesystem images to concatenate and use as
-                an initial RAM disk (initrd).
-                This variable is optional.</para></listitem>
-            <listitem><para><link linkend='var-ROOTFS'><filename>ROOTFS</filename></link>:
-                Indicates a filesystem image to include as the root filesystem.
-                This variable is optional.</para></listitem>
-            <listitem><para><link linkend='var-AUTO_SYSLINUXMENU'><filename>AUTO_SYSLINUXMENU</filename></link>:
-                Enables creating an automatic menu when set to "1".
-                </para></listitem>
-            <listitem><para><link linkend='var-LABELS'><filename>LABELS</filename></link>:
-                Lists targets for automatic configuration.
-                </para></listitem>
-            <listitem><para><link linkend='var-APPEND'><filename>APPEND</filename></link>:
-                Lists append string overrides for each label.
-                </para></listitem>
-            <listitem><para><link linkend='var-SYSLINUX_OPTS'><filename>SYSLINUX_OPTS</filename></link>:
-                Lists additional options to add to the syslinux file.
-                Semicolon characters separate multiple options.
-                </para></listitem>
-            <listitem><para><link linkend='var-SYSLINUX_SPLASH'><filename>SYSLINUX_SPLASH</filename></link>:
-                Lists a background for the VGA boot menu when you are using the
-                boot menu.</para></listitem>
-            <listitem><para><link linkend='var-SYSLINUX_DEFAULT_CONSOLE'><filename>SYSLINUX_DEFAULT_CONSOLE</filename></link>:
-                Set to "console=ttyX" to change kernel boot default console.
-                </para></listitem>
-            <listitem><para><link linkend='var-SYSLINUX_SERIAL'><filename>SYSLINUX_SERIAL</filename></link>:
-                Sets an alternate serial port.
-                Or, turns off serial when the variable is set with an
-                empty string.</para></listitem>
-            <listitem><para><link linkend='var-SYSLINUX_SERIAL_TTY'><filename>SYSLINUX_SERIAL_TTY</filename></link>:
-                Sets an alternate "console=tty..." kernel boot argument.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='ref-classes-systemd'>
-    <title><filename>systemd.bbclass</filename></title>
-
-    <para>
-        The <filename>systemd</filename> class provides support for recipes
-        that install systemd unit files.
-    </para>
-
-    <para>
-        The functionality for this class is disabled unless you have "systemd"
-        in
-        <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>.
-    </para>
-
-    <para>
-        Under this class, the recipe or Makefile (i.e. whatever the recipe is
-        calling during the
-        <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-        task) installs unit files into
-        <filename>${</filename><link linkend='var-D'><filename>D</filename></link><filename>}${systemd_unitdir}/system</filename>.
-        If the unit files being installed go into packages other than the
-        main package, you need to set
-        <link linkend='var-SYSTEMD_PACKAGES'><filename>SYSTEMD_PACKAGES</filename></link>
-        in your recipe to identify the packages in which the files will be
-        installed.
-    </para>
-
-    <para>
-        You should set
-        <link linkend='var-SYSTEMD_SERVICE'><filename>SYSTEMD_SERVICE</filename></link>
-        to the name of the service file.
-        You should also use a package name override to indicate the package
-        to which the value applies.
-        If the value applies to the recipe's main package, use
-        <filename>${</filename><link linkend='var-PN'><filename>PN</filename></link><filename>}</filename>.
-        Here is an example from the connman recipe:
-        <literallayout class='monospaced'>
-     SYSTEMD_SERVICE_${PN} = "connman.service"
-        </literallayout>
-        Services are set up to start on boot automatically unless
-        you have set
-        <link linkend='var-SYSTEMD_AUTO_ENABLE'><filename>SYSTEMD_AUTO_ENABLE</filename></link>
-        to "disable".
-    </para>
-
-    <para>
-        For more information on <filename>systemd</filename>, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#selecting-an-initialization-manager'>Selecting an Initialization Manager</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-</section>
-
-<section id='ref-classes-systemd-boot'>
-    <title><filename>systemd-boot.bbclass</filename></title>
-
-    <para>
-        The <filename>systemd-boot</filename> class provides functions specific
-        to the systemd-boot bootloader for building bootable images.
-        This is an internal class and is not intended to be used directly.
-        <note>
-            The <filename>systemd-boot</filename> class is a result from
-            merging the <filename>gummiboot</filename> class used in previous
-            Yocto Project releases with the <filename>systemd</filename>
-            project.
-        </note>
-        Set the
-        <link linkend='var-EFI_PROVIDER'><filename>EFI_PROVIDER</filename></link>
-        variable to "systemd-boot" to use this class.
-        Doing so creates a standalone EFI bootloader that is not dependent
-        on systemd.
-    </para>
-
-    <para>
-        For information on more variables used and supported in this class,
-        see the
-        <link linkend='var-SYSTEMD_BOOT_CFG'><filename>SYSTEMD_BOOT_CFG</filename></link>,
-        <link linkend='var-SYSTEMD_BOOT_ENTRIES'><filename>SYSTEMD_BOOT_ENTRIES</filename></link>,
-        and
-        <link linkend='var-SYSTEMD_BOOT_TIMEOUT'><filename>SYSTEMD_BOOT_TIMEOUT</filename></link>
-        variables.
-    </para>
-
-    <para>
-        You can also see the
-        <ulink url='http://www.freedesktop.org/wiki/Software/systemd/systemd-boot/'>Systemd-boot documentation</ulink>
-        for more information.
-    </para>
-</section>
-
-<section id='ref-classes-terminal'>
-    <title><filename>terminal.bbclass</filename></title>
-
-    <para>
-        The <filename>terminal</filename> class provides support for starting
-        a terminal session.
-        The
-        <link linkend='var-OE_TERMINAL'><filename>OE_TERMINAL</filename></link>
-        variable controls which terminal emulator is used for the session.
-    </para>
-
-    <para>
-        Other classes use the <filename>terminal</filename> class anywhere a
-        separate terminal session needs to be started.
-        For example, the
-        <link linkend='ref-classes-patch'><filename>patch</filename></link>
-        class assuming
-        <link linkend='var-PATCHRESOLVE'><filename>PATCHRESOLVE</filename></link>
-        is set to "user", the
-        <link linkend='ref-classes-cml1'><filename>cml1</filename></link>
-        class, and the
-        <link linkend='ref-classes-devshell'><filename>devshell</filename></link>
-        class all use the <filename>terminal</filename> class.
-    </para>
-</section>
-
-<section id='ref-classes-testimage*'>
-    <title><filename>testimage*.bbclass</filename></title>
-
-    <para>
-        The <filename>testimage*</filename> classes support running
-        automated tests against images using QEMU and on actual hardware.
-        The classes handle loading the tests and starting the image.
-        To use the classes, you need to perform steps to set up the
-        environment.
-        <note><title>Tip</title>
-            Best practices include using
-            <link linkend='var-IMAGE_CLASSES'><filename>IMAGE_CLASSES</filename></link>
-            rather than
-            <link linkend='var-INHERIT'><filename>INHERIT</filename></link> to
-            inherit the <filename>testimage</filename> class for automated
-            image testing.
-        </note>
-    </para>
-
-    <para>
-        The tests are commands that run on the target system over
-        <filename>ssh</filename>.
-        Each test is written in Python and makes use of the
-        <filename>unittest</filename> module.
-    </para>
-
-    <para>
-        The <filename>testimage.bbclass</filename> runs tests on an image
-        when called using the following:
-        <literallayout class='monospaced'>
-     $ bitbake -c testimage <replaceable>image</replaceable>
-        </literallayout>
-        The <filename>testimage-auto</filename> class runs tests on an image
-        after the image is constructed (i.e.
-        <link linkend='var-TESTIMAGE_AUTO'><filename>TESTIMAGE_AUTO</filename></link>
-        must be set to "1").
-    </para>
-
-    <para>
-        For information on how to enable, run, and create new tests, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#performing-automated-runtime-testing'>Performing Automated Runtime Testing</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-</section>
-
-<section id='ref-classes-testsdk'>
-    <title><filename>testsdk.bbclass</filename></title>
-
-    <para>
-        This class supports running automated tests against
-        software development kits (SDKs).
-        The <filename>testsdk</filename> class runs tests on an SDK when
-        called using the following:
-        <literallayout class='monospaced'>
-     $ bitbake -c testsdk image
-        </literallayout>
-        <note><title>Tip</title>
-            Best practices include using
-            <link linkend='var-IMAGE_CLASSES'><filename>IMAGE_CLASSES</filename></link>
-            rather than
-            <link linkend='var-INHERIT'><filename>INHERIT</filename></link> to
-            inherit the <filename>testsdk</filename> class for automated
-            SDK testing.
-        </note>
-    </para>
-</section>
-
-<section id='ref-classes-texinfo'>
-    <title><filename>texinfo.bbclass</filename></title>
-
-    <para>
-        This class should be inherited by recipes whose upstream packages
-        invoke the <filename>texinfo</filename> utilities at build-time.
-        Native and cross recipes are made to use the dummy scripts provided
-        by <filename>texinfo-dummy-native</filename>, for improved performance.
-        Target architecture recipes use the genuine
-        Texinfo utilities.
-        By default, they use the Texinfo utilities on the host system.
-        <note>
-            If you want to use the Texinfo recipe shipped with the build
-            system, you can remove "texinfo-native" from
-            <link linkend='var-ASSUME_PROVIDED'><filename>ASSUME_PROVIDED</filename></link>
-            and makeinfo from
-            <link linkend='var-SANITY_REQUIRED_UTILITIES'><filename>SANITY_REQUIRED_UTILITIES</filename></link>.
-        </note>
-    </para>
-</section>
-
-<section id='ref-classes-tinderclient'>
-    <title><filename>tinderclient.bbclass</filename></title>
-
-    <para>
-        The <filename>tinderclient</filename> class submits build results to
-        an external Tinderbox instance.
-        <note>
-            This class is currently unmaintained.
-        </note>
-    </para>
-</section>
-
-<section id='ref-classes-toaster'>
-    <title><filename>toaster.bbclass</filename></title>
-
-    <para>
-        The <filename>toaster</filename> class collects information about
-        packages and images and sends them as events that the BitBake
-        user interface can receive.
-        The class is enabled when the Toaster user interface is running.
-    </para>
-
-    <para>
-        This class is not intended to be used directly.
-    </para>
-</section>
-
-<section id='ref-classes-toolchain-scripts'>
-    <title><filename>toolchain-scripts.bbclass</filename></title>
-
-    <para>
-        The <filename>toolchain-scripts</filename> class provides the scripts
-        used for setting up the environment for installed SDKs.
-    </para>
-</section>
-
-<section id='ref-classes-typecheck'>
-    <title><filename>typecheck.bbclass</filename></title>
-
-    <para>
-        The <filename>typecheck</filename> class provides support for
-        validating the values of variables set at the configuration level
-        against their defined types.
-        The OpenEmbedded build system allows you to define the type of a
-        variable using the "type" varflag.
-        Here is an example:
-        <literallayout class='monospaced'>
-     IMAGE_FEATURES[type] = "list"
-        </literallayout>
-    </para>
-</section>
-
-<section id='ref-classes-uboot-config'>
-    <title><filename>uboot-config.bbclass</filename></title>
-
-    <para>
-        The <filename>uboot-config</filename> class provides support for
-        U-Boot configuration for a machine.
-        Specify the machine in your recipe as follows:
-        <literallayout class='monospaced'>
-     UBOOT_CONFIG ??= &lt;default&gt;
-     UBOOT_CONFIG[foo] = "config,images"
-        </literallayout>
-        You can also specify the machine using this method:
-        <literallayout class='monospaced'>
-     UBOOT_MACHINE = "config"
-        </literallayout>
-        See the
-        <link linkend='var-UBOOT_CONFIG'><filename>UBOOT_CONFIG</filename></link>
-        and
-        <link linkend='var-UBOOT_MACHINE'><filename>UBOOT_MACHINE</filename></link>
-        variables for additional information.
-    </para>
-</section>
-
-<section id='ref-classes-uninative'>
-    <title><filename>uninative.bbclass</filename></title>
-
-    <para>
-        Attempts to isolate the build system from the host
-        distribution's C library in order to make re-use of native shared state
-        artifacts across different host distributions practical.
-        With this class enabled, a tarball containing a pre-built C library
-        is downloaded at the start of the build.
-        In the Poky reference distribution this is enabled by default
-        through
-        <filename>meta/conf/distro/include/yocto-uninative.inc</filename>.
-        Other distributions that do not derive from poky can also
-        "<filename>require conf/distro/include/yocto-uninative.inc</filename>"
-        to use this.
-        Alternatively if you prefer, you can build the uninative-tarball recipe
-        yourself, publish the resulting tarball (e.g. via HTTP) and set
-        <filename>UNINATIVE_URL</filename> and
-        <filename>UNINATIVE_CHECKSUM</filename> appropriately.
-        For an example, see the
-        <filename>meta/conf/distro/include/yocto-uninative.inc</filename>.
-    </para>
-
-    <para>
-        The <filename>uninative</filename> class is also used unconditionally
-        by the extensible SDK.
-        When building the extensible SDK,
-        <filename>uninative-tarball</filename> is built and the resulting
-        tarball is included within the SDK.
-    </para>
-</section>
-
-<section id='ref-classes-update-alternatives'>
-    <title><filename>update-alternatives.bbclass</filename></title>
-
-    <para>
-        The <filename>update-alternatives</filename> class helps the
-        alternatives system when multiple sources provide the same command.
-        This situation occurs when several programs that have the same or
-        similar function are installed with the same name.
-        For example, the <filename>ar</filename> command is available from the
-        <filename>busybox</filename>, <filename>binutils</filename> and
-        <filename>elfutils</filename> packages.
-        The <filename>update-alternatives</filename> class handles
-        renaming the binaries so that multiple packages can be installed
-        without conflicts.
-        The <filename>ar</filename> command still works regardless of which
-        packages are installed or subsequently removed.
-        The class renames the conflicting binary in each package and symlinks
-        the highest priority binary during installation or removal of packages.
-    </para>
-
-    <para>
-        To use this class, you need to define a number of variables:
-        <itemizedlist>
-            <listitem><para><link linkend='var-ALTERNATIVE'><filename>ALTERNATIVE</filename></link>
-                </para></listitem>
-            <listitem><para><link linkend='var-ALTERNATIVE_LINK_NAME'><filename>ALTERNATIVE_LINK_NAME</filename></link>
-                </para></listitem>
-            <listitem><para><link linkend='var-ALTERNATIVE_TARGET'><filename>ALTERNATIVE_TARGET</filename></link>
-                </para></listitem>
-            <listitem><para><link linkend='var-ALTERNATIVE_PRIORITY'><filename>ALTERNATIVE_PRIORITY</filename></link>
-                </para></listitem>
-        </itemizedlist>
-        These variables list alternative commands needed by a package,
-        provide pathnames for links, default links for targets, and
-        so forth.
-        For details on how to use this class, see the comments in the
-        <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta/classes/update-alternatives.bbclass'><filename>update-alternatives.bbclass</filename></ulink>
-        file.
-    </para>
-
-    <note>
-        You can use the <filename>update-alternatives</filename> command
-        directly in your recipes.
-        However, this class simplifies things in most cases.
-    </note>
-</section>
-
-<section id='ref-classes-update-rc.d'>
-    <title><filename>update-rc.d.bbclass</filename></title>
-
-    <para>
-        The <filename>update-rc.d</filename> class uses
-        <filename>update-rc.d</filename> to safely install an
-        initialization script on behalf of the package.
-        The OpenEmbedded build system takes care of details such as making
-        sure the script is stopped before a package is removed and started when
-        the package is installed.
-    </para>
-
-    <para>
-        Three variables control this class:
-        <filename><link linkend='var-INITSCRIPT_PACKAGES'>INITSCRIPT_PACKAGES</link></filename>,
-        <filename><link linkend='var-INITSCRIPT_NAME'>INITSCRIPT_NAME</link></filename> and
-        <filename><link linkend='var-INITSCRIPT_PARAMS'>INITSCRIPT_PARAMS</link></filename>.
-        See the variable links for details.
-    </para>
-</section>
-
-<section id='ref-classes-useradd'>
-    <title><filename>useradd*.bbclass</filename></title>
-
-    <para>
-        The <filename>useradd*</filename> classes support the addition of users
-        or groups for usage by the package on the target.
-        For example, if you have packages that contain system services that
-        should be run under their own user or group, you can use these classes
-        to enable creation of the user or group.
-        The
-        <filename>meta-skeleton/recipes-skeleton/useradd/useradd-example.bb</filename>
-        recipe in the <link linkend='source-directory'>Source Directory</link>
-        provides a simple example that shows how to add three
-        users and groups to two packages.
-        See the <filename>useradd-example.bb</filename> recipe for more
-        information on how to use these classes.
-    </para>
-
-    <para>
-        The <filename>useradd_base</filename> class provides basic
-        functionality for user or groups settings.
-    </para>
-
-    <para>
-        The <filename>useradd*</filename> classes support the
-        <link linkend='var-USERADD_PACKAGES'><filename>USERADD_PACKAGES</filename></link>,
-        <link linkend='var-USERADD_PARAM'><filename>USERADD_PARAM</filename></link>,
-        <link linkend='var-GROUPADD_PARAM'><filename>GROUPADD_PARAM</filename></link>,
-        and
-        <link linkend='var-GROUPMEMS_PARAM'><filename>GROUPMEMS_PARAM</filename></link>
-        variables.
-    </para>
-
-    <para>
-        The <filename>useradd-staticids</filename> class supports the addition
-        of users or groups that have static user identification
-        (<filename>uid</filename>) and group identification
-        (<filename>gid</filename>) values.
-    </para>
-
-    <para>
-        The default behavior of the OpenEmbedded build system for assigning
-        <filename>uid</filename> and <filename>gid</filename> values when
-        packages add users and groups during package install time is to
-        add them dynamically.
-        This works fine for programs that do not care what the values of the
-        resulting users and groups become.
-        In these cases, the order of the installation determines the final
-        <filename>uid</filename> and <filename>gid</filename> values.
-        However, if non-deterministic
-        <filename>uid</filename> and <filename>gid</filename> values are a
-        problem, you can override the default, dynamic application of these
-        values by setting static values.
-        When you set static values, the OpenEmbedded build system looks in
-        <link linkend='var-BBPATH'><filename>BBPATH</filename></link> for
-        <filename>files/passwd</filename> and <filename>files/group</filename>
-        files for the values.
-    </para>
-
-    <para>
-        To use static <filename>uid</filename> and <filename>gid</filename>
-        values, you need to set some variables.
-        See the
-        <link linkend='var-USERADDEXTENSION'><filename>USERADDEXTENSION</filename></link>,
-        <link linkend='var-USERADD_UID_TABLES'><filename>USERADD_UID_TABLES</filename></link>,
-        <link linkend='var-USERADD_GID_TABLES'><filename>USERADD_GID_TABLES</filename></link>,
-        and
-        <link linkend='var-USERADD_ERROR_DYNAMIC'><filename>USERADD_ERROR_DYNAMIC</filename></link>
-        variables.
-        You can also see the
-        <link linkend='ref-classes-useradd'><filename>useradd</filename></link>
-        class for additional information.
-    </para>
-
-    <note><title>Notes</title>
-        You do not use the <filename>useradd-staticids</filename>
-        class directly.
-        You either enable or disable the class by setting the
-        <filename>USERADDEXTENSION</filename> variable.
-        If you enable or disable the class in a configured system,
-        <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>
-        might contain incorrect <filename>uid</filename> and
-        <filename>gid</filename> values.
-        Deleting the <filename>TMPDIR</filename> directory
-        will correct this condition.
-    </note>
-</section>
-
-<section id='ref-classes-utility-tasks'>
-    <title><filename>utility-tasks.bbclass</filename></title>
-
-    <para>
-        The <filename>utility-tasks</filename> class provides support for
-        various "utility" type tasks that are applicable to all recipes,
-        such as
-        <link linkend='ref-tasks-clean'><filename>do_clean</filename></link> and
-        <link linkend='ref-tasks-listtasks'><filename>do_listtasks</filename></link>.
-    </para>
-
-    <para>
-        This class is enabled by default because it is inherited by
-        the
-        <link linkend='ref-classes-base'><filename>base</filename></link>
-        class.
-    </para>
-</section>
-
-<section id='ref-classes-utils'>
-    <title><filename>utils.bbclass</filename></title>
-
-    <para>
-        The <filename>utils</filename> class provides some useful Python
-        functions that are typically used in inline Python expressions
-        (e.g. <filename>${@...}</filename>).
-        One example use is for <filename>bb.utils.contains()</filename>.
-    </para>
-
-    <para>
-        This class is enabled by default because it is inherited by the
-        <link linkend='ref-classes-base'><filename>base</filename></link>
-        class.
-    </para>
-</section>
-
-<section id='ref-classes-vala'>
-    <title><filename>vala.bbclass</filename></title>
-
-    <para>
-        The <filename>vala</filename> class supports recipes that need to
-        build software written using the Vala programming language.
-    </para>
-</section>
-
-<section id='ref-classes-waf'>
-    <title><filename>waf.bbclass</filename></title>
-
-    <para>
-        The <filename>waf</filename> class supports recipes that need to build
-        software that uses the Waf build system.
-        You can use the
-        <link linkend='var-EXTRA_OECONF'><filename>EXTRA_OECONF</filename></link>
-        or
-        <link linkend='var-PACKAGECONFIG_CONFARGS'><filename>PACKAGECONFIG_CONFARGS</filename></link>
-        variables to specify additional configuration options to be passed on
-        the Waf command line.
-    </para>
-</section>
-
-<!-- Undocumented classes are:
-        image-empty.bbclass (possibly being dropped)
-        migrate_localcount.bbclass (still need a description)
--->
-
-
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/ref-manual/ref-devtool-reference.rst b/poky/documentation/ref-manual/ref-devtool-reference.rst
index eaca45a..1fe8997 100644
--- a/poky/documentation/ref-manual/ref-devtool-reference.rst
+++ b/poky/documentation/ref-manual/ref-devtool-reference.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ***************************
 ``devtool`` Quick Reference
diff --git a/poky/documentation/ref-manual/ref-devtool-reference.xml b/poky/documentation/ref-manual/ref-devtool-reference.xml
deleted file mode 100644
index 6c3ccc3..0000000
--- a/poky/documentation/ref-manual/ref-devtool-reference.xml
+++ /dev/null
@@ -1,842 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='ref-devtool-reference'>
-    <title><filename>devtool</filename> Quick Reference</title>
-
-    <para>
-        The <filename>devtool</filename> command-line tool provides a number
-        of features that help you build, test, and package software.
-        This command is available alongside the <filename>bitbake</filename>
-        command.
-        Additionally, the <filename>devtool</filename> command is a key
-        part of the extensible SDK.
-    </para>
-
-    <para>
-        This chapter provides a Quick Reference for the
-        <filename>devtool</filename> command.
-        For more information on how to apply the command when using the
-        extensible SDK, see the
-        "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-extensible'>Using the Extensible SDK</ulink>"
-        chapter in the Yocto Project Application Development and the
-        Extensible Software Development Kit (eSDK) manual.
-    </para>
-
-    <section id='devtool-getting-help'>
-        <title>Getting Help</title>
-
-        <para>
-            The <filename>devtool</filename> command line is organized
-            similarly to Git in that it has a number of sub-commands for
-            each function.
-            You can run <filename>devtool --help</filename> to see all
-            the commands:
-            <literallayout class='monospaced'>
-     $ devtool -h
-     NOTE: Starting bitbake server...
-     usage: devtool [--basepath BASEPATH] [--bbpath BBPATH] [-d] [-q]
-                    [--color COLOR] [-h]
-                    &lt;subcommand&gt; ...
-
-     OpenEmbedded development tool
-
-     options:
-       --basepath BASEPATH   Base directory of SDK / build directory
-       --bbpath BBPATH       Explicitly specify the BBPATH, rather than getting it
-                             from the metadata
-       -d, --debug           Enable debug output
-       -q, --quiet           Print only errors
-       --color COLOR         Colorize output (where COLOR is auto, always, never)
-       -h, --help            show this help message and exit
-
-     subcommands:
-       Beginning work on a recipe:
-         add                   Add a new recipe
-         modify                Modify the source for an existing recipe
-         upgrade               Upgrade an existing recipe
-       Getting information:
-         status                Show workspace status
-         search                Search available recipes
-         latest-version        Report the latest version of an existing recipe
-         check-upgrade-status  Report upgradability for multiple (or all) recipes
-       Working on a recipe in the workspace:
-         build                 Build a recipe
-         rename                Rename a recipe file in the workspace
-         edit-recipe           Edit a recipe file
-         find-recipe           Find a recipe file
-         configure-help        Get help on configure script options
-         update-recipe         Apply changes from external source tree to recipe
-         reset                 Remove a recipe from your workspace
-         finish                Finish working on a recipe in your workspace
-       Testing changes on target:
-         deploy-target         Deploy recipe output files to live target machine
-         undeploy-target       Undeploy recipe output files in live target machine
-         build-image           Build image including workspace recipe packages
-       Advanced:
-         create-workspace      Set up workspace in an alternative location
-         export                Export workspace into a tar archive
-         import                Import exported tar archive into workspace
-         extract               Extract the source for an existing recipe
-         sync                  Synchronize the source tree for an existing recipe
-     Use devtool &lt;subcommand&gt; --help to get help on a specific command
-            </literallayout>
-            As directed in the general help output, you can get more syntax
-            on a specific command by providing the command name and using
-            "--help":
-            <literallayout class='monospaced'>
-     $ devtool add --help
-     NOTE: Starting bitbake server...
-     usage: devtool add [-h] [--same-dir | --no-same-dir] [--fetch URI]
-                        [--fetch-dev] [--version VERSION] [--no-git]
-                        [--srcrev SRCREV | --autorev] [--srcbranch SRCBRANCH]
-                        [--binary] [--also-native] [--src-subdir SUBDIR]
-                        [--mirrors] [--provides PROVIDES]
-                        [recipename] [srctree] [fetchuri]
-
-     Adds a new recipe to the workspace to build a specified source tree. Can
-     optionally fetch a remote URI and unpack it to create the source tree.
-
-     arguments:
-       recipename            Name for new recipe to add (just name - no version,
-                             path or extension). If not specified, will attempt to
-                             auto-detect it.
-       srctree               Path to external source tree. If not specified, a
-                             subdirectory of
-                             /home/scottrif/poky/build/workspace/sources will be
-                             used.
-       fetchuri              Fetch the specified URI and extract it to create the
-                             source tree
-
-     options:
-       -h, --help            show this help message and exit
-       --same-dir, -s        Build in same directory as source
-       --no-same-dir         Force build in a separate build directory
-       --fetch URI, -f URI   Fetch the specified URI and extract it to create the
-                             source tree (deprecated - pass as positional argument
-                             instead)
-       --fetch-dev           For npm, also fetch devDependencies
-       --version VERSION, -V VERSION
-                             Version to use within recipe (PV)
-       --no-git, -g          If fetching source, do not set up source tree as a git
-                             repository
-       --srcrev SRCREV, -S SRCREV
-                             Source revision to fetch if fetching from an SCM such
-                             as git (default latest)
-       --autorev, -a         When fetching from a git repository, set SRCREV in the
-                             recipe to a floating revision instead of fixed
-       --srcbranch SRCBRANCH, -B SRCBRANCH
-                             Branch in source repository if fetching from an SCM
-                             such as git (default master)
-       --binary, -b          Treat the source tree as something that should be
-                             installed verbatim (no compilation, same directory
-                             structure). Useful with binary packages e.g. RPMs.
-       --also-native         Also add native variant (i.e. support building recipe
-                             for the build host as well as the target machine)
-       --src-subdir SUBDIR   Specify subdirectory within source tree to use
-       --mirrors             Enable PREMIRRORS and MIRRORS for source tree fetching
-                             (disable by default).
-       --provides PROVIDES, -p PROVIDES
-                             Specify an alias for the item provided by the recipe.
-                             E.g. virtual/libgl
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='devtool-the-workspace-layer-structure'>
-        <title>The Workspace Layer Structure</title>
-
-        <para>
-            <filename>devtool</filename> uses a "Workspace" layer
-            in which to accomplish builds.
-            This layer is not specific to any single
-            <filename>devtool</filename> command but is rather a common
-            working area used across the tool.
-        </para>
-
-        <para>
-            The following figure shows the workspace structure:
-        </para>
-
-        <para>
-            <imagedata fileref="figures/build-workspace-directory.png"
-                width="6in" depth="5in" align="left" scale="70" />
-        </para>
-
-        <para>
-            <literallayout class='monospaced'>
-     attic - A directory created if devtool believes it must preserve
-             anything when you run "devtool reset".  For example, if you
-             run "devtool add", make changes to the recipe, and then
-             run "devtool reset", devtool takes notice that the file has
-             been changed and moves it into the attic should you still
-             want the recipe.
-
-     README - Provides information on what is in workspace layer and how to
-              manage it.
-
-     .devtool_md5 - A checksum file used by devtool.
-
-     appends - A directory that contains *.bbappend files, which point to
-               external source.
-
-     conf - A configuration directory that contains the layer.conf file.
-
-     recipes - A directory containing recipes.  This directory contains a
-               folder for each directory added whose name matches that of the
-               added recipe.  devtool places the <replaceable>recipe</replaceable>.bb file
-               within that sub-directory.
-
-     sources - A directory containing a working copy of the source files used
-               when building the recipe.  This is the default directory used
-               as the location of the source tree when you do not provide a
-               source tree path.  This directory contains a folder for each
-               set of source files matched to a corresponding recipe.
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='devtool-adding-a-new-recipe-to-the-workspace'>
-        <title>Adding a New Recipe to the Workspace Layer</title>
-
-        <para>
-            Use the <filename>devtool add</filename> command to add a new recipe
-            to the workspace layer.
-            The recipe you add should not exist -
-            <filename>devtool</filename> creates it for you.
-            The source files the recipe uses should exist in an external
-            area.
-        </para>
-
-        <para>
-            The following example creates and adds a new recipe named
-            <filename>jackson</filename> to a workspace layer the tool creates.
-            The source code built by the recipes resides in
-            <filename>/home/<replaceable>user</replaceable>/sources/jackson</filename>:
-            <literallayout class='monospaced'>
-     $ devtool add jackson /home/<replaceable>user</replaceable>/sources/jackson
-            </literallayout>
-        </para>
-
-        <para>
-            If you add a recipe and the workspace layer does not exist,
-            the command creates the layer and populates it as
-            described in
-            "<link linkend='devtool-the-workspace-layer-structure'>The Workspace Layer Structure</link>"
-            section.
-        </para>
-
-        <para>
-            Running <filename>devtool add</filename> when the
-            workspace layer exists causes the tool to add the recipe,
-            append files, and source files into the existing workspace layer.
-            The <filename>.bbappend</filename> file is created to point
-            to the external source tree.
-            <note>
-                If your recipe has runtime dependencies defined, you must be sure
-                that these packages exist on the target hardware before attempting
-                to run your application.
-                If dependent packages (e.g. libraries) do not exist on the target,
-                your application, when run, will fail to find those functions.
-                For more information, see the
-                "<link linkend='devtool-deploying-your-software-on-the-target-machine'>Deploying Your Software on the Target Machine</link>"
-                section.
-            </note>
-        </para>
-
-        <para>
-            By default, <filename>devtool add</filename> uses the latest
-            revision (i.e. master) when unpacking files from a remote URI.
-            In some cases, you might want to specify a source revision by
-            branch, tag, or commit hash. You can specify these options when
-            using the <filename>devtool add</filename> command:
-            <itemizedlist>
-                <listitem><para>
-                    To specify a source branch, use the
-                    <filename>--srcbranch</filename> option:
-                    <literallayout class='monospaced'>
-     $ devtool add --srcbranch &DISTRO_NAME_NO_CAP; jackson /home/<replaceable>user</replaceable>/sources/jackson
-                    </literallayout>
-                    In the previous example, you are checking out the
-                    &DISTRO_NAME_NO_CAP; branch.
-                    </para></listitem>
-                <listitem><para>
-                    To specify a specific tag or commit hash, use the
-                    <filename>--srcrev</filename> option:
-                    <literallayout class='monospaced'>
-     $ devtool add --srcrev &DISTRO_REL_TAG; jackson /home/<replaceable>user</replaceable>/sources/jackson
-     $ devtool add --srcrev <replaceable>some_commit_hash</replaceable> /home/<replaceable>user</replaceable>/sources/jackson
-                    </literallayout>
-                    The previous examples check out the &DISTRO_REL_TAG; tag
-                    and the commit associated with the
-                    <replaceable>some_commit_hash</replaceable> hash.
-                    </para></listitem>
-            </itemizedlist>
-            <note>
-                If you prefer to use the latest revision every time the recipe is
-                built, use the options <filename>--autorev</filename>
-                or <filename>-a</filename>.
-            </note>
-        </para>
-    </section>
-
-    <section id='devtool-extracting-the-source-for-an-existing-recipe'>
-        <title>Extracting the Source for an Existing Recipe</title>
-
-        <para>
-            Use the <filename>devtool extract</filename> command to
-            extract the source for an existing recipe.
-            When you use this command, you must supply the root name
-            of the recipe (i.e. no version, paths, or extensions), and
-            you must supply the directory to which you want the source
-            extracted.
-        </para>
-
-        <para>
-            Additional command options let you control the name of a
-            development branch into which you can checkout the source
-            and whether or not to keep a temporary directory, which is
-            useful for debugging.
-        </para>
-    </section>
-
-    <section id='devtool-synchronizing-a-recipes-extracted-source-tree'>
-        <title>Synchronizing a Recipe's Extracted Source Tree</title>
-
-        <para>
-            Use the <filename>devtool sync</filename> command to
-            synchronize a previously extracted source tree for an
-            existing recipe.
-            When you use this command, you must supply the root name
-            of the recipe (i.e. no version, paths, or extensions), and
-            you must supply the directory to which you want the source
-            extracted.
-        </para>
-
-        <para>
-            Additional command options let you control the name of a
-            development branch into which you can checkout the source
-            and whether or not to keep a temporary directory, which is
-            useful for debugging.
-        </para>
-    </section>
-
-    <section id='devtool-modifying-a-recipe'>
-        <title>Modifying an Existing Recipe</title>
-
-        <para>
-            Use the <filename>devtool modify</filename> command to begin
-            modifying the source of an existing recipe.
-            This command is very similar to the
-            <link linkend='devtool-adding-a-new-recipe-to-the-workspace'><filename>add</filename></link>
-            command except that it does not physically create the
-            recipe in the workspace layer because the recipe already
-            exists in an another layer.
-        </para>
-
-        <para>
-            The <filename>devtool modify</filename> command extracts the
-            source for a recipe, sets it up as a Git repository if the
-            source had not already been fetched from Git, checks out a
-            branch for development, and applies any patches from the recipe
-            as commits on top.
-            You can use the following command to checkout the source
-            files:
-            <literallayout class='monospaced'>
-     $ devtool modify <replaceable>recipe</replaceable>
-            </literallayout>
-            Using the above command form, <filename>devtool</filename> uses
-            the existing recipe's
-            <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>
-            statement to locate the upstream source, extracts the source
-            into the default sources location in the workspace.
-            The default development branch used is "devtool".
-        </para>
-    </section>
-
-    <section id='devtool-edit-an-existing-recipe'>
-        <title>Edit an Existing Recipe</title>
-
-        <para>
-            Use the <filename>devtool edit-recipe</filename> command
-            to run the default editor, which is identified using the
-            <filename>EDITOR</filename> variable, on the specified recipe.
-        </para>
-
-        <para>
-            When you use the <filename>devtool edit-recipe</filename>
-            command, you must supply the root name of the recipe
-            (i.e. no version, paths, or extensions).
-            Also, the recipe file itself must reside in the workspace
-            as a result of the <filename>devtool add</filename> or
-            <filename>devtool upgrade</filename> commands.
-            However, you can override that requirement by using the
-            "-a" or "--any-recipe" option.
-            Using either of these options allows you to edit any recipe
-            regardless of its location.
-        </para>
-    </section>
-
-    <section id='devtool-updating-a-recipe'>
-        <title>Updating a Recipe</title>
-
-        <para>
-            Use the <filename>devtool update-recipe</filename> command to
-            update your recipe with patches that reflect changes you make
-            to the source files.
-            For example, if you know you are going to work on some
-            code, you could first use the
-            <link linkend='devtool-modifying-a-recipe'><filename>devtool modify</filename></link>
-            command to extract the code and set up the workspace.
-            After which, you could modify, compile, and test the code.
-        </para>
-
-        <para>
-            When you are satisfied with the results and you have committed
-            your changes to the Git repository, you can then
-            run the <filename>devtool update-recipe</filename> to create the
-            patches and update the recipe:
-            <literallayout class='monospaced'>
-     $ devtool update-recipe <replaceable>recipe</replaceable>
-            </literallayout>
-            If you run the <filename>devtool update-recipe</filename>
-            without committing your changes, the command ignores the
-            changes.
-        </para>
-
-        <para>
-            Often, you might want to apply customizations made to your
-            software in your own layer rather than apply them to the
-            original recipe.
-            If so, you can use the
-            <filename>-a</filename> or <filename>--append</filename>
-            option with the <filename>devtool update-recipe</filename>
-            command.
-            These options allow you to specify the layer into which to
-            write an append file:
-            <literallayout class='monospaced'>
-     $ devtool update-recipe <replaceable>recipe</replaceable> -a <replaceable>base-layer-directory</replaceable>
-            </literallayout>
-            The <filename>*.bbappend</filename> file is created at the
-            appropriate path within the specified layer directory, which
-            may or may not be in your <filename>bblayers.conf</filename>
-            file.
-            If an append file already exists, the command updates it
-            appropriately.
-        </para>
-    </section>
-
-    <section id='devtool-checking-on-the-upgrade-status-of-a-recipe'>
-        <title>Checking on the Upgrade Status of a Recipe</title>
-
-        <para>
-            Upstream recipes change over time.
-            Consequently, you might find that you need to determine if you
-            can upgrade a recipe to a newer version.
-        </para>
-
-        <para>
-            To check on the upgrade status of a recipe, use the
-            <filename>devtool check-upgrade-status</filename> command.
-            The command displays a table of your current recipe versions,
-            the latest upstream versions, the email address of the recipe's
-            maintainer, and any additional information such as commit hash
-            strings and reasons you might not be able to upgrade a particular
-            recipe.
-            <note><title>NOTES:</title>
-                <itemizedlist>
-                    <listitem><para>
-                        For the <filename>oe-core</filename> layer, recipe
-                        maintainers come from the
-                        <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/meta/conf/distro/include/maintainers.inc'><filename>maintainers.inc</filename></ulink>
-                        file.
-                        </para></listitem>
-                    <listitem><para>
-                        If the recipe is using the
-                        <ulink url='&YOCTO_DOCS_BB_URL;#git-fetcher'>Git fetcher</ulink>
-                        rather than a tarball, the commit hash points to the
-                        commit that matches the recipe's latest version tag.
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-        </para>
-
-        <para>
-            As with all <filename>devtool</filename> commands, you can get
-            help on the individual command:
-            <literallayout class='monospaced'>
-     $ devtool check-upgrade-status -h
-     NOTE: Starting bitbake server...
-     usage: devtool check-upgrade-status [-h] [--all] [recipe [recipe ...]]
-
-     Prints a table of recipes together with versions currently provided by
-     recipes, and latest upstream versions, when there is a later version available
-
-     arguments:
-       recipe      Name of the recipe to report (omit to report upgrade info for
-                   all recipes)
-
-     options:
-      -h, --help  show this help message and exit
-       --all, -a   Show all recipes, not just recipes needing upgrade
-            </literallayout>
-        </para>
-
-        <para>
-            Unless you provide a specific recipe name on the command line,
-            the command checks all recipes in all configured layers.
-        </para>
-
-        <para>
-            Following is a partial example table that reports on all the
-            recipes.
-            Notice the reported reason for not upgrading the
-            <filename>base-passwd</filename> recipe.
-            In this example, while a new version is available upstream,
-            you do not want to use it because the dependency on
-            <filename>cdebconf</filename> is not easily satisfied.
-            <note>
-                When a reason for not upgrading displays, the reason is
-                usually written into the recipe using the
-                <filename>RECIPE_NO_UPDATE_REASON</filename> variable.
-                See the
-                <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/meta/recipes-core/base-passwd/base-passwd_3.5.29.bb'><filename>base-passwd.bb</filename></ulink>
-                recipe for an example.
-            </note>
-            <literallayout class='monospaced'>
-     $ devtool check-upgrade-status
-         ...
-         NOTE: acpid                     2.0.30          2.0.31
-     Ross Burton &lt;ross.burton@intel.com&gt;
-         NOTE: u-boot-fw-utils           2018.11         2019.01
-     Marek Vasut &lt;marek.vasut@gmail.com&gt;
-     d3689267f92c5956e09cc7d1baa4700141662bff
-         NOTE: u-boot-tools              2018.11         2019.01
-     Marek Vasut &lt;marek.vasut@gmail.com&gt;
-     d3689267f92c5956e09cc7d1baa4700141662bff
-          .
-          .
-          .
-         NOTE: base-passwd               3.5.29          3.5.45
-     Anuj Mittal &lt;anuj.mittal@intel.com&gt;  cannot be updated due to: Version
-     3.5.38 requires cdebconf for update-passwd utility
-         NOTE: busybox                   1.29.2          1.30.0
-     Andrej Valek &lt;andrej.valek@siemens.com&gt;
-         NOTE: dbus-test                 1.12.10         1.12.12
-     Chen Qi &lt;Qi.Chen@windriver.com&gt;
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='devtool-upgrading-a-recipe'>
-        <title>Upgrading a Recipe</title>
-
-        <para>
-            As software matures, upstream recipes are upgraded to newer
-            versions.
-            As a developer, you need to keep your local recipes up-to-date
-            with the upstream version releases.
-            Several methods exist by which you can upgrade recipes.
-            You can read about them in the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#gs-upgrading-recipes'>Upgrading Recipes</ulink>"
-            section of the Yocto Project Development Tasks Manual.
-            This section overviews the <filename>devtool upgrade</filename>
-            command.
-            <note>
-                Before you upgrade a recipe, you can check on its upgrade
-                status.
-                See the
-                "<link linkend='devtool-checking-on-the-upgrade-status-of-a-recipe'>Checking on the Upgrade Status of a Recipe</link>"
-                for more information.
-            </note>
-        </para>
-
-        <para>
-            The <filename>devtool upgrade</filename> command
-            upgrades an existing recipe to a more recent version of the
-            recipe upstream.
-            The command puts the upgraded recipe file along with any associated
-            files into a "workspace" and, if necessary, extracts the source
-            tree to a specified location.
-            During the upgrade, patches associated with the recipe are
-            rebased or added as needed.
-        </para>
-
-        <para>
-            When you use the <filename>devtool upgrade</filename> command,
-            you must supply the root name of the recipe (i.e. no version,
-            paths, or extensions), and you must supply the directory
-            to which you want the source extracted.
-            Additional command options let you control things such as
-            the version number to which you want to upgrade (i.e. the
-            <link linkend='var-PV'><filename>PV</filename></link>),
-            the source revision to which you want to upgrade (i.e. the
-            <link linkend='var-SRCREV'><filename>SRCREV</filename></link>),
-            whether or not to apply patches, and so forth.
-        </para>
-
-        <para>
-            You can read more on the <filename>devtool upgrade</filename>
-            workflow in the
-            "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-devtool-use-devtool-upgrade-to-create-a-version-of-the-recipe-that-supports-a-newer-version-of-the-software'>Use <filename>devtool upgrade</filename> to Create a Version of the Recipe that Supports a Newer Version of the Software</ulink>"
-            section in the Yocto Project Application Development and the
-            Extensible Software Development Kit (eSDK) manual.
-            You can also see an example of how to use
-            <filename>devtool upgrade</filename> in the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#gs-using-devtool-upgrade'>Using <filename>devtool upgrade</filename></ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id='devtool-resetting-a-recipe'>
-        <title>Resetting a Recipe</title>
-
-        <para>
-            Use the <filename>devtool reset</filename> command to remove a
-            recipe and its configuration (e.g. the corresponding
-            <filename>.bbappend</filename> file) from the workspace layer.
-            Realize that this command deletes the recipe and the
-            append file.
-            The command does not physically move them for you.
-            Consequently, you must be sure to physically relocate your
-            updated recipe and the append file outside of the workspace
-            layer before running the <filename>devtool reset</filename>
-            command.
-        </para>
-
-        <para>
-            If the <filename>devtool reset</filename> command detects that
-            the recipe or the append files have been modified, the
-            command preserves the modified files in a separate "attic"
-            subdirectory under the workspace layer.
-        </para>
-
-        <para>
-            Here is an example that resets the workspace directory that
-            contains the <filename>mtr</filename> recipe:
-            <literallayout class='monospaced'>
-     $ devtool reset mtr
-     NOTE: Cleaning sysroot for recipe mtr...
-     NOTE: Leaving source tree /home/scottrif/poky/build/workspace/sources/mtr as-is; if you no
-        longer need it then please delete it manually
-     $
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='devtool-building-your-recipe'>
-        <title>Building Your Recipe</title>
-
-        <para>
-            Use the <filename>devtool build</filename> command to build your
-            recipe.
-            The <filename>devtool build</filename> command is equivalent to
-            the <filename>bitbake -c populate_sysroot</filename> command.
-        </para>
-
-        <para>
-            When you use the <filename>devtool build</filename> command,
-            you must supply the root name of the recipe (i.e. do not provide
-            versions, paths, or extensions).
-            You can use either the "-s" or the "--disable-parallel-make"
-            options to disable parallel makes during the build.
-            Here is an example:
-            <literallayout class='monospaced'>
-     $ devtool build <replaceable>recipe</replaceable>
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='devtool-building-your-image'>
-        <title>Building Your Image</title>
-
-        <para>
-            Use the <filename>devtool build-image</filename> command
-            to build an image, extending it to include packages from
-            recipes in the workspace.
-            Using this command is useful when you want an image that
-            ready for immediate deployment onto a device for testing.
-            For proper integration into a final image, you need to
-            edit your custom image recipe appropriately.
-        </para>
-
-        <para>
-            When you use the <filename>devtool build-image</filename>
-            command, you must supply the name of the image.
-            This command has no command line options:
-            <literallayout class='monospaced'>
-     $ devtool build-image <replaceable>image</replaceable>
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='devtool-deploying-your-software-on-the-target-machine'>
-        <title>Deploying Your Software on the Target Machine</title>
-
-        <para>
-            Use the <filename>devtool deploy-target</filename> command to
-            deploy the recipe's build output to the live target machine:
-            <literallayout class='monospaced'>
-     $ devtool deploy-target <replaceable>recipe</replaceable>&nbsp;<replaceable>target</replaceable>
-            </literallayout>
-            The <replaceable>target</replaceable> is the address of the
-            target machine, which must be running an SSH server (i.e.
-            <filename>user@hostname[:destdir]</filename>).
-        </para>
-
-        <para>
-            This command deploys all files installed during the
-            <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-            task.
-            Furthermore, you do not need to have package management enabled
-            within the target machine.
-            If you do, the package manager is bypassed.
-            <note><title>Notes</title>
-                <para>
-                    The <filename>deploy-target</filename>
-                    functionality is for development only.
-                    You should never use it to update an image that will be
-                    used in production.
-                </para>
-            </note>
-        </para>
-
-        <para>
-            Some conditions exist that could prevent a deployed application
-            from behaving as expected.
-            When both of the following conditions exist, your application has
-            the potential to not behave correctly when run on the target:
-            <itemizedlist>
-                <listitem><para>
-                    You are deploying a new application to the target and
-                    the recipe you used to build the application had
-                    correctly defined runtime dependencies.
-                    </para></listitem>
-                <listitem><para>
-                    The target does not physically have the packages on which
-                    the application depends installed.
-                    </para></listitem>
-            </itemizedlist>
-            If both of these conditions exist, your application will not
-            behave as expected.
-            The reason for this misbehavior is because the
-            <filename>devtool deploy-target</filename> command does not deploy
-            the packages (e.g. libraries) on which your new application
-            depends.
-            The assumption is that the packages are already on the target.
-            Consequently, when a runtime call is made in the application
-            for a dependent function (e.g. a library call), the function
-            cannot be found.
-        </para>
-
-        <para>
-            To be sure you have all the dependencies local to the target, you
-            need to be sure that the packages are pre-deployed (installed)
-            on the target before attempting to run your application.
-        </para>
-    </section>
-
-    <section id='devtool-removing-your-software-from-the-target-machine'>
-        <title>Removing Your Software from the Target Machine</title>
-
-        <para>
-            Use the <filename>devtool undeploy-target</filename> command to
-            remove deployed build output from the target machine.
-            For the <filename>devtool undeploy-target</filename> command to
-            work, you must have previously used the
-            <link linkend='devtool-deploying-your-software-on-the-target-machine'><filename>devtool deploy-target</filename></link>
-            command.
-            <literallayout class='monospaced'>
-     $ devtool undeploy-target <replaceable>recipe</replaceable>&nbsp;<replaceable>target</replaceable>
-            </literallayout>
-            The <replaceable>target</replaceable> is the address of the
-            target machine, which must be running an SSH server (i.e.
-            <filename>user@hostname</filename>).
-        </para>
-    </section>
-
-    <section id='devtool-creating-the-workspace'>
-        <title>Creating the Workspace Layer in an Alternative Location</title>
-
-        <para>
-            Use the <filename>devtool create-workspace</filename> command to
-            create a new workspace layer in your
-            <link linkend='build-directory'>Build Directory</link>.
-            When you create a new workspace layer, it is populated with the
-            <filename>README</filename> file and the
-            <filename>conf</filename> directory only.
-        </para>
-
-        <para>
-            The following example creates a new workspace layer in your
-            current working and by default names the workspace layer
-            "workspace":
-            <literallayout class='monospaced'>
-     $ devtool create-workspace
-            </literallayout>
-        </para>
-
-        <para>
-            You can create a workspace layer anywhere by supplying
-            a pathname with the command.
-            The following command creates a new workspace layer named
-            "new-workspace":
-            <literallayout class='monospaced'>
-     $ devtool create-workspace /home/scottrif/new-workspace
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='devtool-get-the-status-of-the-recipes-in-your-workspace'>
-        <title>Get the Status of the Recipes in Your Workspace</title>
-
-        <para>
-            Use the <filename>devtool status</filename> command to
-            list the recipes currently in your workspace.
-            Information includes the paths to their respective
-            external source trees.
-        </para>
-
-        <para>
-            The <filename>devtool status</filename> command has no
-            command-line options:
-            <literallayout class='monospaced'>
-     $ devtool status
-            </literallayout>
-            Following is sample output after using
-            <link linkend='devtool-adding-a-new-recipe-to-the-workspace'><filename>devtool add</filename></link>
-            to create and add the <filename>mtr_0.86.bb</filename> recipe
-            to the <filename>workspace</filename> directory:
-            <literallayout class='monospaced'>
-     $ devtool status
-     mtr: /home/scottrif/poky/build/workspace/sources/mtr (/home/scottrif/poky/build/workspace/recipes/mtr/mtr_0.86.bb)
-     $
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='devtool-search-for-available-target-recipes'>
-        <title>Search for Available Target Recipes</title>
-
-        <para>
-            Use the <filename>devtool search</filename> command to
-            search for available target recipes.
-            The command matches the recipe name, package name,
-            description, and installed files.
-            The command displays the recipe name as a result of a
-            match.
-        </para>
-
-        <para>
-            When you use the <filename>devtool search</filename> command,
-            you must supply a <replaceable>keyword</replaceable>.
-            The command uses the <replaceable>keyword</replaceable> when
-            searching for a match.
-        </para>
-    </section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/ref-manual/ref-features.rst b/poky/documentation/ref-manual/ref-features.rst
index ae5a0e3..60d905d 100644
--- a/poky/documentation/ref-manual/ref-features.rst
+++ b/poky/documentation/ref-manual/ref-features.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ********
 Features
diff --git a/poky/documentation/ref-manual/ref-features.xml b/poky/documentation/ref-manual/ref-features.xml
deleted file mode 100644
index 8cab5ec..0000000
--- a/poky/documentation/ref-manual/ref-features.xml
+++ /dev/null
@@ -1,461 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='ref-features'>
-    <title>Features</title>
-
-    <para>
-        This chapter provides a reference of shipped machine and distro features
-        you can include as part of your image, a reference on image features you can
-        select, and a reference on feature backfilling.
-    </para>
-
-    <para>
-        Features provide a mechanism for working out which packages
-        should be included in the generated images.
-        Distributions can select which features they want to support through the
-        <filename><link linkend='var-DISTRO_FEATURES'>DISTRO_FEATURES</link></filename>
-        variable, which is set or appended to in a distribution's configuration file such as
-        <filename>poky.conf</filename>,
-        <filename>poky-tiny.conf</filename>,
-        <filename>poky-lsb.conf</filename> and so forth.
-        Machine features are set in the
-        <filename><link linkend='var-MACHINE_FEATURES'>MACHINE_FEATURES</link></filename>
-        variable, which is set in the machine configuration file and
-        specifies the hardware features for a given machine.
-    </para>
-
-    <para>
-        These two variables combine to work out which kernel modules,
-        utilities, and other packages to include.
-        A given distribution can support a selected subset of features so some machine features might not
-        be included if the distribution itself does not support them.
-    </para>
-
-    <para>
-        One method you can use to determine which recipes are checking to see if a
-        particular feature is contained or not is to <filename>grep</filename> through
-        the <link linkend='metadata'>Metadata</link>
-        for the feature.
-        Here is an example that discovers the recipes whose build is potentially
-        changed based on a given feature:
-        <literallayout class='monospaced'>
-     $ cd poky
-     $ git grep 'contains.*MACHINE_FEATURES.*<replaceable>feature</replaceable>'
-        </literallayout>
-    </para>
-
-    <section id='ref-features-machine'>
-        <title>Machine Features</title>
-
-        <para>
-            The items below are features you can use with
-            <link linkend='var-MACHINE_FEATURES'><filename>MACHINE_FEATURES</filename></link>.
-            Features do not have a one-to-one correspondence to packages, and they can
-            go beyond simply controlling the installation of a package or packages.
-            Sometimes a feature can influence how certain recipes are built.
-            For example, a feature might determine whether a particular configure option
-            is specified within the
-            <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>
-            task for a particular recipe.
-        </para>
-
-        <para>
-            This feature list only represents features as shipped with the Yocto Project metadata:
-            <itemizedlist>
-                <listitem><para><emphasis>acpi:</emphasis> Hardware has ACPI (x86/x86_64 only)
-                    </para></listitem>
-                <listitem><para><emphasis>alsa:</emphasis> Hardware has ALSA audio drivers
-                    </para></listitem>
-                <listitem><para><emphasis>apm:</emphasis> Hardware uses APM (or APM emulation)
-                    </para></listitem>
-                <listitem><para><emphasis>bluetooth:</emphasis> Hardware has integrated BT
-                    </para></listitem>
-                <listitem><para><emphasis>efi:</emphasis> Support for booting through EFI
-                    </para></listitem>
-                <listitem><para><emphasis>ext2:</emphasis> Hardware HDD or Microdrive
-                    </para></listitem>
-                <listitem><para><emphasis>keyboard:</emphasis> Hardware has a keyboard
-                    </para></listitem>
-                <listitem><para><emphasis>pcbios:</emphasis> Support for booting through BIOS
-                    </para></listitem>
-                <listitem><para><emphasis>pci:</emphasis> Hardware has a PCI bus
-                    </para></listitem>
-                <listitem><para><emphasis>pcmcia:</emphasis> Hardware has PCMCIA or CompactFlash sockets
-                    </para></listitem>
-                <listitem><para><emphasis>phone:</emphasis> Mobile phone (voice) support
-                    </para></listitem>
-                <listitem><para><emphasis>qvga:</emphasis> Machine has a QVGA (320x240) display
-                    </para></listitem>
-                <listitem><para><emphasis>rtc:</emphasis> Machine has a Real-Time Clock
-                    </para></listitem>
-                <listitem><para><emphasis>screen:</emphasis> Hardware has a screen
-                    </para></listitem>
-                <listitem><para><emphasis>serial:</emphasis> Hardware has serial support (usually RS232)
-                    </para></listitem>
-                <listitem><para><emphasis>touchscreen:</emphasis> Hardware has a touchscreen
-                    </para></listitem>
-                <listitem><para><emphasis>usbgadget:</emphasis> Hardware is USB gadget device capable
-                    </para></listitem>
-                <listitem><para><emphasis>usbhost:</emphasis> Hardware is USB Host capable
-                    </para></listitem>
-                <listitem><para><emphasis>vfat:</emphasis> FAT file system support
-                    </para></listitem>
-                <listitem><para><emphasis>wifi:</emphasis> Hardware has integrated WiFi
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='ref-features-distro'>
-        <title>Distro Features</title>
-
-        <para>
-            The items below are features you can use with
-            <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>
-            to enable features across your distribution.
-            Features do not have a one-to-one correspondence to packages,
-            and they can go beyond simply controlling the installation of a
-            package or packages.
-            In most cases, the presence or absence of a feature translates to
-            the appropriate option supplied to the configure script during the
-            <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>
-            task for the recipes that optionally
-            support the feature.
-        </para>
-
-        <para>
-            Some distro features are also machine features.
-            These select features make sense to be controlled both at
-            the machine and distribution configuration level.
-            See the
-            <link linkend='var-COMBINED_FEATURES'><filename>COMBINED_FEATURES</filename></link>
-            variable for more information.
-        </para>
-
-        <para>
-            This list only represents features as shipped with the Yocto Project metadata:
-            <itemizedlist>
-                <listitem><para><emphasis>alsa:</emphasis> Include ALSA support
-                    (OSS compatibility kernel modules installed if available).
-                    </para></listitem>
-                <listitem><para><emphasis>api-documentation:</emphasis>
-                    Enables generation of API documentation during recipe
-                    builds.
-                    The resulting documentation is added to SDK tarballs
-                    when the
-                    <filename>bitbake -c populate_sdk</filename> command
-                    is used.
-                    See the
-                    "<ulink url='&YOCTO_DOCS_SDK_URL;#adding-api-documentation-to-the-standard-sdk'>Adding API Documentation to the Standard SDK</ulink>"
-                    section in the Yocto Project Application Development and
-                    the Extensible Software Development Kit (eSDK) manual.
-                    </para></listitem>
-                <listitem><para><emphasis>bluetooth:</emphasis> Include
-                    bluetooth support (integrated BT only).</para></listitem>
-                <listitem><para><emphasis>cramfs:</emphasis> Include CramFS
-                    support.</para></listitem>
-                <listitem><para><emphasis>directfb:</emphasis>
-                    Include DirectFB support.
-                    </para></listitem>
-                <listitem><para><emphasis>ext2:</emphasis> Include tools for
-                    supporting for devices with internal HDD/Microdrive for
-                    storing files (instead of Flash only devices).
-                    </para></listitem>
-                <listitem><para><emphasis>ipsec:</emphasis> Include IPSec
-                    support.</para></listitem>
-                <listitem><para><emphasis>ipv6:</emphasis> Include IPv6 support.
-                    </para></listitem>
-                <listitem><para><emphasis>keyboard:</emphasis> Include keyboard
-                    support (e.g. keymaps will be loaded during boot).
-                    </para></listitem>
-                <listitem><para><emphasis>ldconfig:</emphasis>
-                    Include support for ldconfig and
-                    <filename>ld.so.conf</filename> on the target.
-                    </para></listitem>
-                <listitem><para><emphasis>nfs:</emphasis> Include NFS client
-                    support (for mounting NFS exports on device).
-                    </para></listitem>
-                <listitem><para><emphasis>opengl:</emphasis>
-                    Include the Open Graphics Library, which is a
-                    cross-language, multi-platform application programming
-                    interface used for rendering two and three-dimensional
-                    graphics.</para></listitem>
-                <listitem><para><emphasis>pci:</emphasis> Include PCI bus
-                    support.</para></listitem>
-                <listitem><para><emphasis>pcmcia:</emphasis> Include
-                    PCMCIA/CompactFlash support.</para></listitem>
-                <listitem><para><emphasis>ppp:</emphasis> Include PPP dialup
-                    support.</para></listitem>
-                <listitem><para><emphasis>ptest:</emphasis> Enables building
-                    the package tests where supported by individual recipes.
-                    For more information on package tests, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#testing-packages-with-ptest'>Testing Packages With ptest</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    </para></listitem>
-                <listitem><para><emphasis>smbfs:</emphasis> Include SMB networks
-                    client support (for mounting Samba/Microsoft Windows shares
-                    on device).</para></listitem>
-                <listitem><para><emphasis>systemd:</emphasis> Include support
-                    for this <filename>init</filename> manager, which is a full
-                    replacement of for <filename>init</filename> with parallel
-                    starting of services, reduced shell overhead, and other
-                    features.
-                    This <filename>init</filename> manager is used by many
-                    distributions.</para></listitem>
-                <listitem><para><emphasis>usbgadget:</emphasis> Include USB
-                    Gadget Device support (for USB networking/serial/storage).
-                    </para></listitem>
-                <listitem><para><emphasis>usbhost:</emphasis> Include USB Host
-                    support (allows to connect external keyboard, mouse,
-                    storage, network etc).</para></listitem>
-                <listitem><para><emphasis>usrmerge:</emphasis> Merges the 
-                    <filename>/bin</filename>, <filename>/sbin</filename>, 
-                    <filename>/lib</filename>, and <filename>/lib64</filename>       
-                    directories into their respective counterparts in the 
-                    <filename>/usr</filename> directory to provide better package 
-                   and application compatibility.</para></listitem>
-                <listitem><para><emphasis>wayland:</emphasis> Include the
-                    Wayland display server protocol and the library that
-                    supports it.</para></listitem>
-                <listitem><para><emphasis>wifi:</emphasis> Include WiFi support
-                    (integrated only).</para></listitem>
-                <listitem><para><emphasis>x11:</emphasis> Include the X server
-                    and libraries.</para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='ref-features-image'>
-        <title>Image Features</title>
-
-        <para>
-            The contents of images generated by the OpenEmbedded build system
-            can be controlled by the
-            <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>
-            and
-            <link linkend='var-EXTRA_IMAGE_FEATURES'><filename>EXTRA_IMAGE_FEATURES</filename></link>
-            variables that you typically configure in your image recipes.
-            Through these variables, you can add several different
-            predefined packages such as development utilities or packages with
-            debug information needed to investigate application problems or
-            profile applications.
-        </para>
-
-        <para>
-            The following image features are available for all images:
-            <itemizedlist>
-                <listitem><para><emphasis>allow-empty-password:</emphasis>
-                    Allows Dropbear and OpenSSH to accept root logins
-                    and logins from accounts having an empty password string.
-                    </para></listitem>
-                <listitem><para><emphasis>dbg-pkgs:</emphasis>
-                    Installs debug symbol packages for all packages installed
-                    in a given image.
-                    </para></listitem>
-                <listitem><para><emphasis>debug-tweaks:</emphasis>
-                    Makes an image suitable for development (e.g.
-                    allows root logins without passwords and enables
-                    post-installation logging).
-                    See the 'allow-empty-password', 'empty-root-password',
-                    and 'post-install-logging' features in this list for
-                    additional information.
-                    </para></listitem>
-                <listitem><para><emphasis>dev-pkgs:</emphasis>
-                    Installs development packages (headers and extra library
-                    links) for all packages installed in a given image.
-                    </para></listitem>
-                <listitem><para><emphasis>doc-pkgs:</emphasis> Installs
-                    documentation packages for all packages installed in a
-                    given image.
-                    </para></listitem>
-                <listitem><para><emphasis>empty-root-password:</emphasis>
-                    Sets the root password to an empty string, which allows
-                    logins with a blank password.
-                    </para></listitem>
-                <listitem><para><emphasis>package-management:</emphasis>
-                    Installs package management tools and preserves the package
-                    manager database.
-                    </para></listitem>
-                <listitem><para><emphasis>post-install-logging:</emphasis>
-                    Enables logging postinstall script runs to
-                    the <filename>/var/log/postinstall.log</filename> file
-                    on first boot of the image on the target system.
-                    <note>
-                        To make the <filename>/var/log</filename> directory
-                        on the target persistent, use the
-                        <link linkend='var-VOLATILE_LOG_DIR'><filename>VOLATILE_LOG_DIR</filename></link>
-                        variable by setting it to "no".
-                    </note>
-                    </para></listitem>
-                <listitem><para><emphasis>ptest-pkgs:</emphasis>
-                    Installs ptest packages for all ptest-enabled recipes.
-                    </para></listitem>
-                <listitem><para><emphasis>read-only-rootfs:</emphasis>
-                    Creates an image whose root filesystem is read-only.
-                    See the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-a-read-only-root-filesystem'>Creating a Read-Only Root Filesystem</ulink>"
-                    section in the Yocto Project Development Tasks Manual for
-                    more information.
-                    </para></listitem>
-                <listitem><para><emphasis>splash:</emphasis>
-                    Enables showing a splash screen during boot.
-                    By default, this screen is provided by
-                    <filename>psplash</filename>, which does allow
-                    customization.
-                    If you prefer to use an alternative splash screen package,
-                    you can do so by setting the <filename>SPLASH</filename>
-                    variable to a different package name (or names) within the
-                    image recipe or at the distro configuration level.
-                    </para></listitem>
-                <listitem><para><emphasis>staticdev-pkgs:</emphasis>
-                    Installs static development packages, which are
-                    static libraries (i.e. <filename>*.a</filename> files), for
-                    all packages installed in a given image.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            Some image features are available only when you inherit the
-            <link linkend='ref-classes-core-image'><filename>core-image</filename></link>
-            class.
-            The current list of these valid features is as follows:
-            <itemizedlist>
-                <listitem><para><emphasis>hwcodecs:</emphasis> Installs
-                    hardware acceleration codecs.
-                    </para></listitem>
-                <listitem><para><emphasis>nfs-server:</emphasis>
-                    Installs an NFS server.
-                    </para></listitem>
-                <listitem><para><emphasis>perf:</emphasis>
-                    Installs profiling tools such as
-                    <filename>perf</filename>, <filename>systemtap</filename>,
-                    and <filename>LTTng</filename>.
-                    For general information on user-space tools, see the
-                    <ulink url='&YOCTO_DOCS_SDK_URL;'>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</ulink>
-                    manual.
-                    </para></listitem>
-                <listitem><para><emphasis>ssh-server-dropbear:</emphasis>
-                    Installs the Dropbear minimal SSH server.
-                    </para></listitem>
-                <listitem><para><emphasis>ssh-server-openssh:</emphasis>
-                    Installs the OpenSSH SSH server, which is more
-                    full-featured than Dropbear.
-                    Note that if both the OpenSSH SSH server and the Dropbear
-                    minimal SSH server are present in
-                    <filename>IMAGE_FEATURES</filename>, then OpenSSH will take
-                    precedence and Dropbear will not be installed.
-                    </para></listitem>
-                <listitem><para><emphasis>tools-debug:</emphasis>
-                    Installs debugging tools such as
-                    <filename>strace</filename> and <filename>gdb</filename>.
-                    For information on GDB, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#platdev-gdb-remotedebug'>Debugging With the GNU Project Debugger (GDB) Remotely</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    For information on tracing and profiling, see the
-                    <ulink url='&YOCTO_DOCS_PROF_URL;'>Yocto Project Profiling and Tracing Manual</ulink>.
-                    </para></listitem>
-                <listitem><para><emphasis>tools-sdk:</emphasis>
-                    Installs a full SDK that runs on the device.
-                    </para></listitem>
-                <listitem><para><emphasis>tools-testapps:</emphasis>
-                    Installs device testing tools (e.g. touchscreen debugging).
-                    </para></listitem>
-                <listitem><para><emphasis>x11:</emphasis>
-                    Installs the X server.
-                    </para></listitem>
-                <listitem><para><emphasis>x11-base:</emphasis>
-                    Installs the X server with a minimal environment.
-                    </para></listitem>
-                <listitem><para><emphasis>x11-sato:</emphasis>
-                    Installs the OpenedHand Sato environment.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-    </section>
-
-    <section id='ref-features-backfill'>
-        <title>Feature Backfilling</title>
-
-        <para>
-            Sometimes it is necessary in the OpenEmbedded build system to extend
-            <link linkend='var-MACHINE_FEATURES'><filename>MACHINE_FEATURES</filename></link>
-            or <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>
-            to control functionality that was previously enabled and not able
-            to be disabled.
-            For these cases, we need to add an
-            additional feature item to appear in one of these variables,
-            but we do not want to force developers who have existing values
-            of the variables in their configuration to add the new feature
-            in order to retain the same overall level of functionality.
-            Thus, the OpenEmbedded build system has a mechanism to
-            automatically "backfill" these added features into existing
-            distro or machine configurations.
-            You can see the list of features for which this is done by
-            finding the
-            <link linkend='var-DISTRO_FEATURES_BACKFILL'><filename>DISTRO_FEATURES_BACKFILL</filename></link>
-            and <link linkend='var-MACHINE_FEATURES_BACKFILL'><filename>MACHINE_FEATURES_BACKFILL</filename></link>
-            variables in the <filename>meta/conf/bitbake.conf</filename> file.
-        </para>
-
-        <para>
-            Because such features are backfilled by default into all
-            configurations as described in the previous paragraph, developers
-            who wish to disable the new features need to be able to selectively
-            prevent the backfilling from occurring.
-            They can do this by adding the undesired feature or features to the
-            <link linkend='var-DISTRO_FEATURES_BACKFILL_CONSIDERED'><filename>DISTRO_FEATURES_BACKFILL_CONSIDERED</filename></link>
-            or <link linkend='var-MACHINE_FEATURES_BACKFILL_CONSIDERED'><filename>MACHINE_FEATURES_BACKFILL_CONSIDERED</filename></link>
-            variables for distro features and machine features respectively.
-        </para>
-
-        <para>
-            Here are two examples to help illustrate feature backfilling:
-            <itemizedlist>
-                <listitem><para><emphasis>The "pulseaudio" distro feature option</emphasis>:
-                    Previously, PulseAudio support was enabled within the Qt and
-                    GStreamer frameworks.
-                    Because of this, the feature is backfilled and thus
-                    enabled for all distros through the
-                    <filename>DISTRO_FEATURES_BACKFILL</filename>
-                    variable in the <filename>meta/conf/bitbake.conf</filename> file.
-                    However, your distro needs to disable the feature.
-                    You can disable the feature without affecting
-                    other existing distro configurations that need PulseAudio support
-                    by adding "pulseaudio" to
-                    <filename>DISTRO_FEATURES_BACKFILL_CONSIDERED</filename>
-                    in your distro's <filename>.conf</filename> file.
-                    Adding the feature to this variable when it also
-                    exists in the <filename>DISTRO_FEATURES_BACKFILL</filename>
-                    variable prevents the build system from adding the feature to
-                    your configuration's <filename>DISTRO_FEATURES</filename>, effectively disabling
-                    the feature for that particular distro.</para></listitem>
-                <listitem><para><emphasis>The "rtc" machine feature option</emphasis>:
-                    Previously, real time clock (RTC) support was enabled for all
-                    target devices.
-                    Because of this, the feature is backfilled and thus enabled
-                    for all machines through the <filename>MACHINE_FEATURES_BACKFILL</filename>
-                    variable in the <filename>meta/conf/bitbake.conf</filename> file.
-                    However, your target device does not have this capability.
-                    You can disable RTC support for your device without
-                    affecting other machines that need RTC support
-                    by adding the feature to your machine's
-                    <filename>MACHINE_FEATURES_BACKFILL_CONSIDERED</filename>
-                    list in the machine's <filename>.conf</filename> file.
-                    Adding the feature to this variable when it also
-                    exists in the <filename>MACHINE_FEATURES_BACKFILL</filename>
-                    variable prevents the build system from adding the feature to
-                    your configuration's <filename>MACHINE_FEATURES</filename>, effectively
-                    disabling RTC support for that particular machine.</para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</chapter>
-
-<!--
-vim: expandtab tw=80 ts=4 spell spelllang=en_gb
--->
diff --git a/poky/documentation/ref-manual/ref-images.rst b/poky/documentation/ref-manual/ref-images.rst
index c88d4d7..eaa6c49 100644
--- a/poky/documentation/ref-manual/ref-images.rst
+++ b/poky/documentation/ref-manual/ref-images.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ******
 Images
diff --git a/poky/documentation/ref-manual/ref-images.xml b/poky/documentation/ref-manual/ref-images.xml
deleted file mode 100644
index 6f10a6f..0000000
--- a/poky/documentation/ref-manual/ref-images.xml
+++ /dev/null
@@ -1,170 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='ref-images'>
-    <title>Images</title>
-
-    <para>
-        The OpenEmbedded build system provides several example
-        images to satisfy different needs.
-        When you issue the <filename>bitbake</filename> command you provide a "top-level" recipe
-        that essentially begins the build for the type of image you want.
-    </para>
-
-    <note>
-        Building an image without GNU General Public License Version 3 (GPLv3),
-        GNU Lesser General Public License Version 3 (LGPLv3), and the
-        GNU Affero General Public License Version 3 (AGPL-3.0) components
-        is only supported for minimal and base images.
-        Furthermore, if you are going to build an image using non-GPLv3 and
-        similarly licensed components, you must make the following changes in
-        the <filename>local.conf</filename> file before using the BitBake
-        command to build the minimal or base image:
-        <literallayout class='monospaced'>
-     1. Comment out the EXTRA_IMAGE_FEATURES line
-     2. Set INCOMPATIBLE_LICENSE = "GPL-3.0 LGPL-3.0 AGPL-3.0"
-        </literallayout>
-    </note>
-
-    <para>
-        From within the <filename>poky</filename> Git repository, you can use
-        the following command to display the list of directories within the
-        <link linkend='source-directory'>Source Directory</link>
-        that contain image recipe files:
-        <literallayout class='monospaced'>
-     $ ls meta*/recipes*/images/*.bb
-        </literallayout>
-    </para>
-
-    <para>
-        Following is a list of supported recipes:
-        <itemizedlist>
-            <listitem><para>
-                <filename>build-appliance-image</filename>:
-                An example virtual machine that contains all the pieces
-                required to run builds using the build system as well as the
-                build system itself.
-                You can boot and run the image using either the
-                <ulink url='http://www.vmware.com/products/player/overview.html'>VMware Player</ulink>
-                or
-                <ulink url='http://www.vmware.com/products/workstation/overview.html'>VMware Workstation</ulink>.
-                For more information on this image, see the
-                <ulink url='&YOCTO_HOME_URL;/software-item/build-appliance/'>Build Appliance</ulink>
-                page on the Yocto Project website.
-                </para></listitem>
-            <listitem><para><filename>core-image-base</filename>:
-                A console-only image that fully supports the target device hardware.</para></listitem>
-            <listitem><para><filename>core-image-clutter</filename>:
-                An image with support for the Open GL-based toolkit Clutter, which enables development of
-                rich and animated graphical user interfaces.</para></listitem>
-            <listitem><para><filename>core-image-full-cmdline</filename>:
-                A console-only image with more full-featured Linux system
-                functionality installed.</para></listitem>
-                <listitem><para><filename>core-image-lsb</filename>:
-                An image that conforms to the Linux Standard Base (LSB)
-                specification.
-                This image requires a distribution configuration that
-                enables LSB compliance (e.g. <filename>poky-lsb</filename>).
-                If you build <filename>core-image-lsb</filename> without that
-                configuration, the image will not be LSB-compliant.
-                </para></listitem>
-            <listitem><para><filename>core-image-lsb-dev</filename>:
-                A <filename>core-image-lsb</filename> image that is suitable for development work
-                using the host.
-                The image includes headers and libraries you can use in a host development
-                environment.
-                This image requires a distribution configuration that
-                enables LSB compliance (e.g. <filename>poky-lsb</filename>).
-                If you build <filename>core-image-lsb-dev</filename> without that
-                configuration, the image will not be LSB-compliant.
-                </para></listitem>
-            <listitem><para><filename>core-image-lsb-sdk</filename>:
-                A <filename>core-image-lsb</filename> that includes everything in
-                the cross-toolchain but also includes development headers and libraries
-                to form a complete standalone SDK.
-                This image requires a distribution configuration that
-                enables LSB compliance (e.g. <filename>poky-lsb</filename>).
-                If you build <filename>core-image-lsb-sdk</filename> without that
-                configuration, the image will not be LSB-compliant.
-                This image is suitable for development using the target.</para></listitem>
-            <listitem><para><filename>core-image-minimal</filename>:
-                A small image just capable of allowing a device to boot.</para></listitem>
-            <listitem><para><filename>core-image-minimal-dev</filename>:
-                A <filename>core-image-minimal</filename> image suitable for development work
-                using the host.
-                The image includes headers and libraries you can use in a host development
-                environment.
-                </para></listitem>
-            <listitem><para id='images-core-image-minimal-initramfs'><filename>core-image-minimal-initramfs</filename>:
-                A <filename>core-image-minimal</filename> image that has the Minimal RAM-based
-                Initial Root Filesystem (initramfs) as part of the kernel,
-                which allows the system to find the first "init" program more efficiently.
-                See the
-                <link linkend='var-PACKAGE_INSTALL'><filename>PACKAGE_INSTALL</filename></link>
-                variable for additional information helpful when working with
-                initramfs images.
-                </para></listitem>
-            <listitem><para><filename>core-image-minimal-mtdutils</filename>:
-                A <filename>core-image-minimal</filename> image that has support
-                for the Minimal MTD Utilities, which let the user interact with the
-                MTD subsystem in the kernel to perform operations on flash devices.
-                </para></listitem>
-            <listitem><para><filename>core-image-rt</filename>:
-                A <filename>core-image-minimal</filename> image plus a real-time test suite and
-                tools appropriate for real-time use.</para></listitem>
-            <listitem><para><filename>core-image-rt-sdk</filename>:
-                A <filename>core-image-rt</filename> image that includes everything in
-                the cross-toolchain.
-                The image also includes development headers and libraries to form a complete
-                stand-alone SDK and is suitable for development using the target.
-                </para></listitem>
-            <listitem><para><filename>core-image-sato</filename>:
-                An image with Sato support, a mobile environment and visual style that works well
-                with mobile devices.
-                The image supports X11 with a Sato theme and applications such as
-                a terminal, editor, file manager, media player, and so forth.
-                </para></listitem>
-            <listitem><para><filename>core-image-sato-dev</filename>:
-                A <filename>core-image-sato</filename> image suitable for development
-                using the host.
-                The image includes libraries needed to build applications on the device itself,
-                testing and profiling tools, and debug symbols.
-                This image was formerly <filename>core-image-sdk</filename>.
-                </para></listitem>
-            <listitem><para><filename>core-image-sato-sdk</filename>:
-                A <filename>core-image-sato</filename> image that includes everything in
-                the cross-toolchain.
-                The image also includes development headers and libraries to form a complete standalone SDK
-                and is suitable for development using the target.</para></listitem>
-            <listitem><para><filename>core-image-testmaster</filename>:
-                A "master" image designed to be used for automated runtime testing.
-                Provides a "known good" image that is deployed to a separate
-                partition so that you can boot into it and use it to deploy a
-                second image to be tested.
-                You can find more information about runtime testing in the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#performing-automated-runtime-testing'>Performing Automated Runtime Testing</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-                </para></listitem>
-            <listitem><para><filename>core-image-testmaster-initramfs</filename>:
-                A RAM-based Initial Root Filesystem (initramfs) image tailored for
-                use with the <filename>core-image-testmaster</filename> image.
-                </para></listitem>
-            <listitem><para><filename>core-image-weston</filename>:
-                A very basic Wayland image with a terminal.
-                This image provides the Wayland protocol libraries and the
-                reference Weston compositor.
-                For more information, see the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-using-wayland-and-weston'>Using Wayland and Weston</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-                </para></listitem>
-            <listitem><para><filename>core-image-x11</filename>:
-                A very basic X11 image with a terminal.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/ref-manual/ref-kickstart.rst b/poky/documentation/ref-manual/ref-kickstart.rst
index 45222de..c031ef2 100644
--- a/poky/documentation/ref-manual/ref-kickstart.rst
+++ b/poky/documentation/ref-manual/ref-kickstart.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *******************************************
 OpenEmbedded Kickstart (``.wks``) Reference
diff --git a/poky/documentation/ref-manual/ref-kickstart.xml b/poky/documentation/ref-manual/ref-kickstart.xml
deleted file mode 100644
index 45db1c0..0000000
--- a/poky/documentation/ref-manual/ref-kickstart.xml
+++ /dev/null
@@ -1,335 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='ref-kickstart'>
-<title>OpenEmbedded Kickstart (<filename>.wks</filename>) Reference</title>
-
-    <section id='openembedded-kickstart-wks-reference'>
-        <title>Introduction</title>
-
-        <para>
-            The current Wic implementation supports only the basic kickstart
-            partitioning commands:
-            <filename>partition</filename> (or <filename>part</filename>
-            for short) and <filename>bootloader</filename>.
-            <note>
-                Future updates will implement more commands and options.
-                If you use anything that is not specifically supported, results
-                can be unpredictable.
-            </note>
-        </para>
-
-        <para>
-            This chapter provides a reference on the available kickstart
-            commands.
-            The information lists the commands, their syntax, and meanings.
-            Kickstart commands are based on the Fedora kickstart versions but
-            with modifications to reflect Wic capabilities.
-            You can see the original documentation for those commands at the
-            following link:
-            <literallayout class='monospaced'>
-     <ulink url='http://pykickstart.readthedocs.io/en/latest/kickstart-docs.html'>http://pykickstart.readthedocs.io/en/latest/kickstart-docs.html</ulink>
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='command-part-or-partition'>
-        <title>Command: part or partition</title>
-
-        <para>
-            Either of these commands creates a partition on the system and uses
-            the following syntax:
-            <literallayout class='monospaced'>
-     part [<replaceable>mntpoint</replaceable>]
-     partition [<replaceable>mntpoint</replaceable>]
-            </literallayout>
-            If you do not provide <replaceable>mntpoint</replaceable>, Wic
-            creates a partition but does not mount it.
-        </para>
-
-        <para>
-            The <filename><replaceable>mntpoint</replaceable></filename> is
-            where the partition is mounted and must be in one of the
-            following forms:
-            <itemizedlist>
-                <listitem><para>
-                    <filename>/<replaceable>path</replaceable></filename>:
-                    For example, "/", "/usr", or "/home"
-                    </para></listitem>
-                <listitem><para>
-                    <filename>swap</filename>:
-                    The created partition is used as swap space
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            Specifying a <replaceable>mntpoint</replaceable> causes the
-            partition to automatically be mounted.
-            Wic achieves this by adding entries to the filesystem table (fstab)
-            during image generation.
-            In order for Wic to generate a valid fstab, you must also provide
-            one of the <filename>--ondrive</filename>,
-            <filename>--ondisk</filename>, or
-            <filename>--use-uuid</filename> partition options as part of the
-            command.
-            <note>
-                The mount program must understand the PARTUUID syntax you use
-                with <filename>--use-uuid</filename> and non-root
-                <replaceable>mountpoint</replaceable>, including swap.
-                The busybox versions of these application are currently
-                excluded.
-            </note>
-            Here is an example that uses "/" as the
-            <replaceable>mountpoint</replaceable>.
-            The command uses <filename>--ondisk</filename> to force the
-            partition onto the
-            <filename>sdb</filename> disk:
-            <literallayout class='monospaced'>
-     part / --source rootfs --ondisk sdb --fstype=ext3 --label platform --align 1024
-            </literallayout>
-        </para>
-
-        <para>
-            Here is a list that describes other supported options you can use
-            with the <filename>part</filename> and
-            <filename>partition</filename> commands:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>--size</filename>:</emphasis>
-                    The minimum partition size in MBytes.
-                    Specify an integer value such as 500.
-                    Do not append the number with "MB".
-                    You do not need this option if you use
-                    <filename>--source</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--fixed-size</filename>:</emphasis>
-                    The exact partition size in MBytes.
-                    You cannot specify with <filename>--size</filename>.
-                    An error occurs when assembling the disk image if the
-                    partition data is larger than
-                    <filename>--fixed-size</filename>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--source</filename>:</emphasis>
-                    This option is a Wic-specific option that names the source
-                    of the data that populates the partition.
-                    The most common value for this option is "rootfs", but you
-                    can use any value that maps to a valid source plugin.
-                    For information on the source plugins, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#wic-using-the-wic-plugin-interface'>Using the Wic Plugins Interface</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    </para>
-
-                    <para>If you use <filename>--source rootfs</filename>, Wic
-                    creates a partition as large as needed and fills it with
-                    the contents of the root filesystem pointed to by the
-                    <filename>-r</filename> command-line option or the
-                    equivalent rootfs derived from the <filename>-e</filename>
-                    command-line option.
-                    The filesystem type used to create the partition is driven
-                    by the value of the <filename>--fstype</filename> option
-                    specified for the partition.
-                    See the entry on <filename>--fstype</filename> that follows
-                    for more information.</para>
-
-                    <para>If you use
-                    <filename>--source <replaceable>plugin-name</replaceable></filename>,
-                    Wic creates a partition as large as needed and fills it
-                    with the contents of the partition that is generated by the
-                    specified plugin name using the data pointed to by the
-                    <filename>-r</filename> command-line option or the
-                    equivalent rootfs derived from the <filename>-e</filename>
-                    command-line option.
-                    Exactly what those contents are and filesystem type used are
-                    dependent on the given plugin implementation.
-                    </para>
-
-                    <para>If you do not use the <filename>--source</filename>
-                    option, the <filename>wic</filename> command creates an
-                    empty partition.
-                    Consequently, you must use the <filename>--size</filename>
-                    option to specify the size of the empty partition.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--ondisk</filename> or <filename>--ondrive</filename>:</emphasis>
-                    Forces the partition to be created on a particular disk.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--fstype</filename>:</emphasis>
-                    Sets the file system type for the partition.
-                    Valid values are:
-                    <itemizedlist>
-                        <listitem><para>
-                            <filename>ext4</filename>
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>ext3</filename>
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>ext2</filename>
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>btrfs</filename>
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>squashfs</filename>
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>swap</filename>
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--fsoptions</filename>:</emphasis>
-                    Specifies a free-form string of options to be used when
-                    mounting the filesystem.
-                    This string is copied into the
-                    <filename>/etc/fstab</filename> file of the installed
-                    system and should be enclosed in quotes.
-                    If not specified, the default string is "defaults".
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--label label</filename>:</emphasis>
-                    Specifies the label to give to the filesystem to be made on
-                    the partition.
-                    If the given label is already in use by another filesystem,
-                    a new label is created for the partition.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--active</filename>:</emphasis>
-                    Marks the partition as active.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--align (in KBytes)</filename>:</emphasis>
-                    This option is a Wic-specific option that says to start
-                    partitions on boundaries given
-                    <replaceable>x</replaceable> KBytes.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--no-table</filename>:</emphasis>
-                    This option is a Wic-specific option.
-                    Using the option reserves space for the partition and
-                    causes it to become populated.
-                    However, the partition is not added to the partition table.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--exclude-path</filename>:</emphasis>
-                    This option is a Wic-specific option that excludes the given
-                    relative path from the resulting image.
-                    This option is only effective with the rootfs source
-                    plugin.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--extra-space</filename>:</emphasis>
-                    This option is a Wic-specific option that adds extra space
-                    after the space filled by the content of the partition.
-                    The final size can exceed the size specified by the
-                    <filename>--size</filename> option.
-                    The default value is 10 Mbytes.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--overhead-factor</filename>:</emphasis>
-                    This option is a Wic-specific option that multiplies the
-                    size of the partition by the option's value.
-                    You must supply a value greater than or equal to "1".
-                    The default value is "1.3".
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--part-name</filename>:</emphasis>
-                    This option is a Wic-specific option that specifies a name
-                    for GPT partitions.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--part-type</filename>:</emphasis>
-                    This option is a Wic-specific option that specifies the
-                    partition type globally unique identifier (GUID) for GPT
-                    partitions.
-                    You can find the list of partition type GUIDs at
-                    <ulink url='http://en.wikipedia.org/wiki/GUID_Partition_Table#Partition_type_GUIDs'></ulink>.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--use-uuid</filename>:</emphasis>
-                    This option is a Wic-specific option that causes Wic to
-                    generate a random GUID for the partition.
-                    The generated identifier is used in the bootloader
-                    configuration to specify the root partition.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--uuid</filename>:</emphasis>
-                    This option is a Wic-specific option that specifies the
-                    partition UUID.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--fsuuid</filename>:</emphasis>
-                    This option is a Wic-specific option that specifies the
-                    filesystem UUID.
-                    You can generate or modify
-                    <link linkend='var-WKS_FILE'><filename>WKS_FILE</filename></link>
-                    with this option if a preconfigured filesystem UUID is
-                    added to the kernel command line in the bootloader
-                    configuration before you run Wic.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--system-id</filename>:</emphasis>
-                    This option is a Wic-specific option that specifies the
-                    partition system ID, which is a one byte long, hexadecimal
-                    parameter with or without the 0x prefix.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--mkfs-extraopts</filename>:</emphasis>
-                    This option specifies additional options to pass to the
-                    <filename>mkfs</filename> utility.
-                    Some default options for certain filesystems do not take
-                    effect.
-                    See Wic's help on kickstart
-                    (i.e. <filename>wic help kickstart</filename>).
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='command-bootloader'>
-    <title>Command: bootloader</title>
-
-        <para>
-            This command specifies how the bootloader should be configured and
-            supports the following options:
-            <note>
-                Bootloader functionality and boot partitions are implemented by
-                the various <filename>--source</filename> plugins that
-                implement bootloader functionality.
-                The bootloader command essentially provides a means of
-                modifying bootloader configuration.
-            </note>
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>--timeout</filename>:</emphasis>
-                    Specifies the number of seconds before the bootloader times
-                    out and boots the default option.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--append</filename>:</emphasis>
-                    Specifies kernel parameters.
-                    These parameters will be added to the syslinux
-                    <filename>APPEND</filename> or <filename>grub</filename>
-                    kernel command line.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>--configfile</filename>:</emphasis>
-                    Specifies a user-defined configuration file for the
-                    bootloader.
-                    You can provide a full pathname for the file or a file that
-                    exists in the <filename>canned-wks</filename> folder.
-                    This option overrides all other bootloader options.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/ref-manual/ref-manual-customization.xsl b/poky/documentation/ref-manual/ref-manual-customization.xsl
deleted file mode 100644
index 3181f61..0000000
--- a/poky/documentation/ref-manual/ref-manual-customization.xsl
+++ /dev/null
@@ -1,31 +0,0 @@
-<?xml version='1.0'?>
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
-
-  <xsl:import href="http://downloads.yoctoproject.org/mirror/docbook-mirror/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-<!--
-
-  <xsl:import href="../template/1.76.1/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-  <xsl:import href="http://docbook.sourceforge.net/release/xsl/1.76.1/xhtml/docbook.xsl" />
-
--->
-
-  <xsl:include href="../template/permalinks.xsl"/>
-  <xsl:include href="../template/section.title.xsl"/>
-  <xsl:include href="../template/component.title.xsl"/>
-  <xsl:include href="../template/division.title.xsl"/>
-  <xsl:include href="../template/formal.object.heading.xsl"/>
-  <xsl:include href="../template/gloss-permalinks.xsl"/>
-  <xsl:include href="../template/qa-code-permalinks.xsl"/>
-
-  <xsl:param name="html.stylesheet" select="'ref-style.css'" />
-  <xsl:param name="chapter.autolabel" select="1" />
-  <xsl:param name="appendix.autolabel" select="A" />
-  <xsl:param name="section.autolabel" select="1" />
-  <xsl:param name="section.label.includes.component.label" select="1" />
-  <xsl:param name="generate.id.attributes" select="1" />
-
-</xsl:stylesheet>
diff --git a/poky/documentation/ref-manual/ref-manual.rst b/poky/documentation/ref-manual/ref-manual.rst
index a106af2..033f4ba 100644
--- a/poky/documentation/ref-manual/ref-manual.rst
+++ b/poky/documentation/ref-manual/ref-manual.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ==============================
 Yocto Project Reference Manual
diff --git a/poky/documentation/ref-manual/ref-manual.xml b/poky/documentation/ref-manual/ref-manual.xml
deleted file mode 100755
index 9a914f1..0000000
--- a/poky/documentation/ref-manual/ref-manual.xml
+++ /dev/null
@@ -1,232 +0,0 @@
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-
-<book id='ref-manual' lang='en'
-      xmlns:xi="http://www.w3.org/2003/XInclude"
-      xmlns="http://docbook.org/ns/docbook"
-      >
-    <bookinfo>
-
-        <mediaobject>
-            <imageobject>
-                <imagedata fileref='figures/poky-title.png'
-                    format='SVG'
-                    align='left' scalefit='1' width='100%'/>
-            </imageobject>
-        </mediaobject>
-
-        <title>
-            Yocto Project Reference Manual
-        </title>
-
-        <authorgroup>
-            <author>
-                <affiliation>
-                    <orgname>&ORGNAME;</orgname>
-                </affiliation>
-                <email>&ORGEMAIL;</email>
-            </author>
-
-        </authorgroup>
-
-        <revhistory>
-            <revision>
-                <revnumber>4.0+git</revnumber>
-                <date>November 2010</date>
-                <revremark>The initial document released with the Yocto Project 0.9 Release</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.0</revnumber>
-                <date>April 2011</date>
-                <revremark>Released with the Yocto Project 1.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.1</revnumber>
-                <date>October 2011</date>
-                <revremark>Released with the Yocto Project 1.1 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.2</revnumber>
-                <date>April 2012</date>
-                <revremark>Released with the Yocto Project 1.2 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.3</revnumber>
-                <date>October 2012</date>
-                <revremark>Released with the Yocto Project 1.3 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.4</revnumber>
-                <date>April 2013</date>
-                <revremark>Released with the Yocto Project 1.4 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.5</revnumber>
-                <date>October 2013</date>
-                <revremark>Released with the Yocto Project 1.5 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.6</revnumber>
-                <date>April 2014</date>
-                <revremark>Released with the Yocto Project 1.6 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.7</revnumber>
-                <date>October 2014</date>
-                <revremark>Released with the Yocto Project 1.7 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>1.8</revnumber>
-                <date>April 2015</date>
-                <revremark>Released with the Yocto Project 1.8 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.0</revnumber>
-                <date>October 2015</date>
-                <revremark>Released with the Yocto Project 2.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.1</revnumber>
-                <date>April 2016</date>
-                <revremark>Released with the Yocto Project 2.1 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.2</revnumber>
-                <date>October 2016</date>
-                <revremark>Released with the Yocto Project 2.2 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.3</revnumber>
-                <date>May 2017</date>
-                <revremark>Released with the Yocto Project 2.3 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.4</revnumber>
-                <date>October 2017</date>
-                <revremark>Released with the Yocto Project 2.4 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.5</revnumber>
-                <date>May 2018</date>
-                <revremark>Released with the Yocto Project 2.5 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.6</revnumber>
-                <date>November 2018</date>
-                <revremark>Released with the Yocto Project 2.6 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.7</revnumber>
-                <date>May 2019</date>
-                <revremark>Released with the Yocto Project 2.7 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>3.0</revnumber>
-                <date>October 2019</date>
-                <revremark>Released with the Yocto Project 3.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>3.1</revnumber>
-                <date>&REL_MONTH_YEAR;</date>
-                <revremark>Released with the Yocto Project 3.1 Release.</revremark>
-            </revision>
-        </revhistory>
-
-    <copyright>
-      <year>&COPYRIGHT_YEAR;</year>
-      <holder>Linux Foundation</holder>
-    </copyright>
-
-    <legalnotice>
-      <para>
-        Permission is granted to copy, distribute and/or modify this document under
-        the terms of the <ulink type="http" url="http://creativecommons.org/licenses/by-sa/2.0/uk/">Creative Commons Attribution-Share Alike 2.0 UK: England &amp; Wales</ulink> as published by Creative Commons.
-      </para>
-           <note><title>Manual Notes</title>
-               <itemizedlist>
-                   <listitem><para>
-                       This version of the
-                       <emphasis>Yocto Project Reference Manual</emphasis>
-                       is for the &YOCTO_DOC_VERSION; release of the
-                       Yocto Project.
-                       To be sure you have the latest version of the manual
-                       for this release, go to the
-                       <ulink url='&YOCTO_DOCS_URL;'>Yocto Project documentation page</ulink>
-                       and select the manual from that site.
-                       Manuals from the site are more up-to-date than manuals
-                       derived from the Yocto Project released TAR files.
-                       </para></listitem>
-                   <listitem><para>
-                       If you located this manual through a web search, the
-                       version of the manual might not be the one you want
-                       (e.g. the search might have returned a manual much
-                       older than the Yocto Project version with which you
-                       are working).
-                       You can see all Yocto Project major releases by
-                       visiting the
-                       <ulink url='&YOCTO_WIKI_URL;/wiki/Releases'>Releases</ulink>
-                       page.
-                       If you need a version of this manual for a different
-                       Yocto Project release, visit the
-                       <ulink url='&YOCTO_DOCS_URL;'>Yocto Project documentation page</ulink>
-                       and select the manual set by using the
-                       "ACTIVE RELEASES DOCUMENTATION" or "DOCUMENTS ARCHIVE"
-                       pull-down menus.
-                       </para></listitem>
-                   <listitem>
-                       <para>
-                       To report any inaccuracies or problems with this
-                       (or any other Yocto Project) manual, send an email to
-                       the Yocto Project documentation mailing list at
-                       <filename>docs@lists.yoctoproject.org</filename> or
-                       log into the freenode <filename>#yocto</filename> channel.
-                       </para>
-                   </listitem>
-               </itemizedlist>
-           </note>
-    </legalnotice>
-
-    </bookinfo>
-
-    <xi:include href="ref-system-requirements.xml"/>
-
-    <xi:include href="ref-terms.xml"/>
-
-    <xi:include href="ref-release-process.xml"/>
-
-    <xi:include href="migration.xml"/>
-
-    <xi:include href="ref-structure.xml"/>
-
-    <xi:include href="ref-classes.xml"/>
-
-    <xi:include href="ref-tasks.xml"/>
-
-    <xi:include href="ref-devtool-reference.xml"/>
-
-    <xi:include href="ref-kickstart.xml"/>
-
-    <xi:include href="ref-qa-checks.xml"/>
-
-    <xi:include href="ref-images.xml"/>
-
-    <xi:include href="ref-features.xml"/>
-
-    <xi:include href="ref-variables.xml"/>
-
-    <xi:include href="ref-varlocality.xml"/>
-
-    <xi:include href="faq.xml"/>
-
-    <xi:include href="resources.xml"/>
-
-<!--    <index id='index'>
-      <title>Index</title>
-    </index>
--->
-
-</book>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/ref-manual/ref-qa-checks.rst b/poky/documentation/ref-manual/ref-qa-checks.rst
index 3e76ac1..4ac65c0 100644
--- a/poky/documentation/ref-manual/ref-qa-checks.rst
+++ b/poky/documentation/ref-manual/ref-qa-checks.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *****************************
 QA Error and Warning Messages
diff --git a/poky/documentation/ref-manual/ref-qa-checks.xml b/poky/documentation/ref-manual/ref-qa-checks.xml
deleted file mode 100644
index 0071e4a..0000000
--- a/poky/documentation/ref-manual/ref-qa-checks.xml
+++ /dev/null
@@ -1,1225 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='ref-qa-checks'>
-<title>QA Error and Warning Messages</title>
-
-<section id='qa-introduction'>
-    <title>Introduction</title>
-
-    <para>
-        When building a recipe, the OpenEmbedded build system performs
-        various QA checks on the output to ensure that common issues are
-        detected and reported.
-        Sometimes when you create a new recipe to build new software,
-        it will build with no problems.
-        When this is not the case, or when you have QA issues building any
-        software, it could take a little time to resolve them.
-    </para>
-
-    <para>
-        While it is tempting to ignore a QA message or even to
-        disable QA checks, it is best to try and resolve any
-        reported QA issues.
-        This chapter provides a list of the QA messages and brief explanations
-        of the issues you could encounter so that you can properly resolve
-        problems.
-    </para>
-
-    <para>
-        The next section provides a list of all QA error and warning
-        messages based on a default configuration.
-        Each entry provides the message or error form along with an
-        explanation.
-        <note>
-            <title>Notes</title>
-            <itemizedlist>
-                <listitem><para>
-                    At the end of each message, the name of the associated
-                    QA test (as listed in the
-                    "<link linkend='ref-classes-insane'><filename>insane.bbclass</filename></link>"
-                    section) appears within square brackets.
-                    </para></listitem>
-                <listitem><para>
-                    As mentioned, this list of error and warning messages is for
-                    QA checks only.
-                    The list does not cover all possible build errors or
-                    warnings you could encounter.
-                    </para></listitem>
-                <listitem><para>
-                    Because some QA checks are disabled by default, this list
-                    does not include all possible QA check errors and warnings.
-                    </para></listitem>
-            </itemizedlist>
-        </note>
-    </para>
-</section>
-
-<section id='qa-errors-and-warnings'>
-    <title>Errors and Warnings</title>
-
-<!--
-This section uses the <para><code> construct to enable permalinks for the
-various QA issue and warning messages.  The file templates/qa-code-permalinks.xsl
-is used to locate the construct and generate the permalink.  This solution
-leverages the fact that right now this section in the ref-manual is the only
-place is all the YP docs that uses the <para><code> construct.  If, in the
-future, that construct were to appear in the ref-manual, a generic permalink
-would be generated for the text between <code></code>.  If a better solution
-can be found then it should be implemented.  I can't find one at the moment.
--->
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-libexec'>
-                    <code>
-     &lt;packagename&gt;: &lt;path&gt; is using libexec please relocate to &lt;libexecdir&gt; [libexec]
-                    </code>
-                </para>
-
-                <para>
-                    The specified package contains files in
-                    <filename>/usr/libexec</filename> when the distro
-                    configuration uses a different path for
-                    <filename>&lt;libexecdir&gt;</filename>
-                    By default, <filename>&lt;libexecdir&gt;</filename> is
-                    <filename>$prefix/libexec</filename>.
-                    However, this default can be changed (e.g.
-                    <filename>${libdir}</filename>).
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-rpaths'>
-                    <code>
-     package &lt;packagename&gt; contains bad RPATH &lt;rpath&gt; in file &lt;file&gt; [rpaths]
-                    </code>
-                </para>
-
-                <para>
-                    The specified binary produced by the recipe contains dynamic
-                    library load paths (rpaths) that contain build system paths
-                    such as
-                    <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>,
-                    which are incorrect for the target and could potentially
-                    be a security issue.
-                    Check for bad <filename>-rpath</filename> options being
-                    passed to the linker in your
-                    <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>
-                    log.
-                    Depending on the build system used by the software being
-                    built, there might be a configure option to disable rpath
-                    usage completely within the build of the software.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-useless-rpaths'>
-                    <code>
-     &lt;packagename&gt;: &lt;file&gt; contains probably-redundant RPATH &lt;rpath&gt; [useless-rpaths]
-                    </code>
-                </para>
-
-                <para>
-                    The specified binary produced by the recipe contains dynamic
-                    library load paths (rpaths) that on a standard system are
-                    searched by default by the linker (e.g.
-                    <filename>/lib</filename> and <filename>/usr/lib</filename>).
-                    While these paths will not cause any breakage, they do waste
-                    space and are unnecessary.
-                    Depending on the build system used by the software being
-                    built, there might be a configure option to disable rpath
-                    usage completely within the build of the software.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-file-rdeps'>
-                    <code>
-     &lt;packagename&gt; requires &lt;files&gt;, but no providers in its RDEPENDS [file-rdeps]
-                    </code>
-                </para>
-
-                <para>
-                    A file-level dependency has been identified from the
-                    specified package on the specified files, but there is
-                    no explicit corresponding entry in
-                    <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>.
-                    If particular files are required at runtime then
-                    <filename>RDEPENDS</filename> should be declared in the
-                    recipe to ensure the packages providing them are built.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-build-deps'>
-                    <code>
-     &lt;packagename1&gt; rdepends on &lt;packagename2&gt;, but it isn't a build dependency? [build-deps]
-                    </code>
-                </para>
-
-                <para>
-                    A runtime dependency exists between the two specified
-                    packages, but there is nothing explicit within the recipe
-                    to enable the OpenEmbedded build system to ensure that
-                    dependency is satisfied.
-                    This condition is usually triggered by an
-                    <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>
-                    value being added at the packaging stage rather than up
-                    front, which is usually automatic based on the contents of
-                    the package.
-                    In most cases, you should change the recipe to add an
-                    explicit <filename>RDEPENDS</filename> for the dependency.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-dev-so'>
-                    <code>
-     non -dev/-dbg/nativesdk- package contains symlink .so: &lt;packagename&gt; path '&lt;path&gt;' [dev-so]
-                    </code>
-                </para>
-
-                <para>
-                    Symlink <filename>.so</filename> files are for development
-                    only, and should therefore go into the
-                    <filename>-dev</filename> package.
-                    This situation might occur if you add
-                    <filename>*.so*</filename> rather than
-                    <filename>*.so.*</filename> to a non-dev package.
-                    Change
-                    <link linkend='var-FILES'><filename>FILES</filename></link>
-                    (and possibly
-                    <link linkend='var-PACKAGES'><filename>PACKAGES</filename></link>)
-                    such that the specified <filename>.so</filename> file goes
-                    into an appropriate <filename>-dev</filename> package.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-staticdev'>
-                    <code>
-     non -staticdev package contains static .a library: &lt;packagename&gt; path '&lt;path&gt;' [staticdev]
-                    </code>
-                </para>
-
-                <para>
-                    Static <filename>.a</filename> library files should go into
-                    a <filename>-staticdev</filename> package.
-                    Change
-                    <link linkend='var-FILES'><filename>FILES</filename></link>
-                    (and possibly
-                    <link linkend='var-PACKAGES'><filename>PACKAGES</filename></link>)
-                    such that the specified <filename>.a</filename> file goes
-                    into an appropriate <filename>-staticdev</filename> package.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-libdir'>
-                    <code>
-     &lt;packagename&gt;: found library in wrong location [libdir]
-                    </code>
-                </para>
-
-                <para>
-                    The specified file may have been installed into an incorrect
-                    (possibly hardcoded) installation path.
-                    For example, this test will catch recipes that install
-                    <filename>/lib/bar.so</filename> when
-                    <filename>${base_libdir}</filename> is "lib32".
-                    Another example is when recipes install
-                    <filename>/usr/lib64/foo.so</filename> when
-                    <filename>${libdir}</filename> is "/usr/lib".
-                    False positives occasionally exist.
-                    For these cases add "libdir" to
-                    <link linkend='var-INSANE_SKIP'><filename>INSANE_SKIP</filename></link>
-                    for the package.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-debug-files'>
-                    <code>
-     non debug package contains .debug directory: &lt;packagename&gt; path &lt;path&gt; [debug-files]
-                    </code>
-                </para>
-
-                <para>
-                    The specified package contains a
-                    <filename>.debug</filename> directory, which should not
-                    appear in anything but the <filename>-dbg</filename>
-                    package.
-                    This situation might occur if you add a path which contains
-                    a <filename>.debug</filename> directory and do not
-                    explicitly add the <filename>.debug</filename> directory
-                    to the <filename>-dbg</filename> package.
-                    If this is the case, add the <filename>.debug</filename>
-                    directory explicitly to
-                    <filename>FILES_${PN}-dbg</filename>.
-                    See
-                    <link linkend='var-FILES'><filename>FILES</filename></link>
-                    for additional information on <filename>FILES</filename>.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-arch'>
-                    <code>
-     Architecture did not match (&lt;machine_arch&gt; to &lt;file_arch&gt;) on &lt;file&gt; [arch]
-                    </code>
-                </para>
-
-                <para>
-                    By default, the OpenEmbedded build system checks the
-                    Executable and Linkable Format (ELF) type, bit size, and
-                    endianness of any binaries to ensure they match the
-                    target architecture.
-                    This test fails if any binaries do not match the type since
-                    there would be an incompatibility.
-                    The test could indicate that the wrong compiler or compiler
-                    options have been used.
-                    Sometimes software, like bootloaders, might need to
-                    bypass this check.
-                    If the file you receive the error for is firmware
-                    that is not intended to be executed within the target
-                    operating system or is intended to run on a separate
-                    processor within the device, you can add "arch" to
-                    <link linkend='var-INSANE_SKIP'><filename>INSANE_SKIP</filename></link>
-                    for the package.
-                    Another option is to check the
-                    <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>
-                    log and verify that the compiler options being used
-                    are correct.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-arch-bit-size-no-match'>
-                    <code>
-     Bit size did not match (&lt;machine_bits&gt; to &lt;file_bits&gt;) &lt;recipe&gt; on &lt;file&gt; [arch]
-                    </code>
-                </para>
-
-                <para>
-                    By default, the OpenEmbedded build system checks
-                    the Executable and Linkable Format (ELF) type,
-                    bit size, and endianness of any binaries to ensure
-                    they match the target architecture.
-                    This test fails if any binaries do not match the type since
-                    there would be an incompatibility.
-                    The test could indicate that the wrong compiler or compiler
-                    options have been used.
-                    Sometimes software, like bootloaders, might need to
-                    bypass this check.
-                    If the file you receive the error for is firmware that
-                    is not intended to be executed within the target
-                    operating system or is intended to run on a separate
-                    processor within the device, you can add "arch" to
-                    <link linkend='var-INSANE_SKIP'><filename>INSANE_SKIP</filename></link>
-                    for the package.
-                    Another option is to check the
-                    <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>
-                    log and verify that the compiler options being used are
-                    correct.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-arch-endianness-no-match'>
-                    <code>
-     Endianness did not match (&lt;machine_endianness&gt; to &lt;file_endianness&gt;) on &lt;file&gt; [arch]
-                    </code>
-                </para>
-
-                <para>
-                    By default, the OpenEmbedded build system checks
-                    the Executable and Linkable Format (ELF) type, bit
-                    size, and endianness of any binaries to ensure they
-                    match the target architecture.
-                    This test fails if any binaries do not match the type since
-                    there would be an incompatibility.
-                    The test could indicate that the wrong compiler or compiler
-                    options have been used.
-                    Sometimes software, like bootloaders, might need to
-                    bypass this check.
-                    If the file you receive the error for is firmware
-                    that is not intended to be executed within the target
-                    operating system or is intended to run on a separate
-                    processor within the device, you can add "arch" to
-                    <link linkend='var-INSANE_SKIP'><filename>INSANE_SKIP</filename></link>
-                    for the package.
-                    Another option is to check the
-                    <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>
-                    log and verify that the compiler options being used
-                    are correct.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-textrel'>
-                    <code>
-     ELF binary '&lt;file&gt;' has relocations in .text [textrel]
-                    </code>
-                </para>
-
-                <para>
-                    The specified ELF binary contains relocations in its
-                    <filename>.text</filename> sections.
-                    This situation can result in a performance impact
-                    at runtime.
-                </para>
-
-                <para>
-                    Typically, the way to solve this performance issue is to
-                    add "-fPIC" or "-fpic" to the compiler command-line
-                    options.
-                    For example, given software that reads
-                    <link linkend='var-CFLAGS'><filename>CFLAGS</filename></link>
-                    when you build it, you could add the following to your
-                    recipe:
-                    <literallayout class='monospaced'>
-     CFLAGS_append = " -fPIC "
-                    </literallayout>
-                </para>
-
-                <para>
-                    For more information on text relocations at runtime, see
-                    <ulink url='http://www.akkadia.org/drepper/textrelocs.html'></ulink>.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-ldflags'>
-                    <code>
-     No GNU_HASH in the elf binary: '&lt;file&gt;' [ldflags]
-                    </code>
-                </para>
-
-                <para>
-                    This indicates that binaries produced when building the
-                    recipe have not been linked with the
-                    <link linkend='var-LDFLAGS'><filename>LDFLAGS</filename></link>
-                    options provided by the build system.
-                    Check to be sure that the <filename>LDFLAGS</filename>
-                    variable is being passed to the linker command.
-                    A common workaround for this situation is to pass in
-                    <filename>LDFLAGS</filename> using
-                    <link linkend='var-TARGET_CC_ARCH'><filename>TARGET_CC_ARCH</filename></link>
-                    within the recipe as follows:
-                    <literallayout class='monospaced'>
-     TARGET_CC_ARCH += "${LDFLAGS}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-xorg-driver-abi'>
-                    <code>
-     Package &lt;packagename&gt; contains Xorg driver (&lt;driver&gt;) but no xorg-abi- dependencies [xorg-driver-abi]
-                    </code>
-                </para>
-
-                <para>
-                    The specified package contains an Xorg driver, but does not
-                    have a corresponding ABI package dependency.
-                    The xserver-xorg recipe provides driver ABI names.
-                    All drivers should depend on the ABI versions that they have
-                    been built against.
-                    Driver recipes that include
-                    <filename>xorg-driver-input.inc</filename> or
-                    <filename>xorg-driver-video.inc</filename> will
-                    automatically get these versions.
-                    Consequently, you should only need to explicitly add
-                    dependencies to binary driver recipes.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-infodir'>
-                    <code>
-     The /usr/share/info/dir file is not meant to be shipped in a particular package. [infodir]
-                    </code>
-                </para>
-
-                <para>
-                    The <filename>/usr/share/info/dir</filename> should not be
-                    packaged.
-                    Add the following line to your
-                    <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-                    task or to your <filename>do_install_append</filename>
-                    within the recipe as follows:
-                    <literallayout class='monospaced'>
-     rm ${D}${infodir}/dir
-                    </literallayout>
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-symlink-to-sysroot'>
-                    <code>
-     Symlink &lt;path&gt; in &lt;packagename&gt; points to TMPDIR [symlink-to-sysroot]
-                    </code>
-                </para>
-
-                <para>
-                    The specified symlink points into
-                    <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>
-                    on the host.
-                    Such symlinks will work on the host.
-                    However, they are clearly invalid when running on
-                    the target.
-                    You should either correct the symlink to use a relative
-                    path or remove the symlink.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-la'>
-                    <code>
-     &lt;file&gt; failed sanity test (workdir) in path &lt;path&gt; [la]
-                    </code>
-                </para>
-
-                <para>
-                    The specified <filename>.la</filename> file contains
-                    <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>
-                    paths.
-                    Any <filename>.la</filename> file containing these paths
-                    is incorrect since <filename>libtool</filename> adds the
-                    correct sysroot prefix when using the files automatically
-                    itself.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-pkgconfig'>
-                    <code>
-     &lt;file&gt; failed sanity test (tmpdir) in path &lt;path&gt; [pkgconfig]
-                    </code>
-                </para>
-
-                <para>
-                    The specified <filename>.pc</filename> file contains
-                    <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link><filename>/</filename><link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>
-                    paths.
-                    Any <filename>.pc</filename> file containing these paths is
-                    incorrect since <filename>pkg-config</filename> itself adds
-                    the correct sysroot prefix when the files are accessed.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-debug-deps'>
-                    <code>
-     &lt;packagename&gt; rdepends on &lt;debug_packagename&gt; [debug-deps]
-                    </code>
-                </para>
-
-                <para>
-                    A dependency exists between the specified non-dbg package
-                    (i.e. a package whose name does not end in
-                    <filename>-dbg</filename>) and a package that is a
-                    <filename>dbg</filename> package.
-                    The <filename>dbg</filename> packages contain
-                    debug symbols and are brought in using several
-                    different methods:
-                    <itemizedlist>
-                        <listitem><para>
-                            Using the <filename>dbg-pkgs</filename>
-                            <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>
-                            value.
-                            </para></listitem>
-                        <listitem><para>
-                            Using
-                            <link linkend='var-IMAGE_INSTALL'><filename>IMAGE_INSTALL</filename></link>.
-                            </para></listitem>
-                        <listitem><para>
-                            As a dependency of another
-                            <filename>dbg</filename> package that was brought
-                            in using one of the above methods.
-                            </para></listitem>
-                    </itemizedlist>
-                    The dependency might have been automatically added
-                    because the <filename>dbg</filename> package erroneously
-                    contains files that it should not contain (e.g. a
-                    non-symlink <filename>.so</filename> file) or it might
-                    have been added manually (e.g. by adding to
-                    <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>).
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-dev-deps'>
-                    <code>
-     &lt;packagename&gt; rdepends on &lt;dev_packagename&gt; [dev-deps]
-                    </code>
-                </para>
-
-                <para>
-                    A dependency exists between the specified non-dev package
-                    (a package whose name does not end in
-                    <filename>-dev</filename>) and a package that is a
-                    <filename>dev</filename> package.
-                    The <filename>dev</filename> packages contain development
-                    headers and are usually brought in using several different
-                    methods:
-                    <itemizedlist>
-                        <listitem><para>
-                            Using the <filename>dev-pkgs</filename>
-                            <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>
-                            value.
-                            </para></listitem>
-                        <listitem><para>
-                            Using
-                            <link linkend='var-IMAGE_INSTALL'><filename>IMAGE_INSTALL</filename></link>.
-                            </para></listitem>
-                        <listitem><para>
-                            As a dependency of another
-                            <filename>dev</filename> package that was brought
-                            in using one of the above methods.
-                            </para></listitem>
-                    </itemizedlist>
-                    The dependency might have been automatically added (because
-                    the <filename>dev</filename> package erroneously contains
-                    files that it should not have (e.g. a non-symlink
-                    <filename>.so</filename> file) or it might have been added
-                    manually (e.g. by adding to
-                    <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>).
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-dep-cmp'>
-                    <code>
-     &lt;var&gt;_&lt;packagename&gt; is invalid: &lt;comparison&gt; (&lt;value&gt;)   only comparisons &lt;, =, &gt;, &lt;=, and &gt;= are allowed [dep-cmp]
-                    </code>
-                </para>
-
-                <para>
-                    If you are adding a versioned dependency relationship to one
-                    of the dependency variables
-                    (<link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>,
-                    <link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link>,
-                    <link linkend='var-RSUGGESTS'><filename>RSUGGESTS</filename></link>,
-                    <link linkend='var-RPROVIDES'><filename>RPROVIDES</filename></link>,
-                    <link linkend='var-RREPLACES'><filename>RREPLACES</filename></link>,
-                    or
-                    <link linkend='var-RCONFLICTS'><filename>RCONFLICTS</filename></link>),
-                    you must only use the named comparison operators.
-                    Change the versioned dependency values you are adding
-                    to match those listed in the message.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-compile-host-path'>
-                    <code>
-     &lt;recipename&gt;: The compile log indicates that host include and/or library paths were used. Please check the log '&lt;logfile&gt;' for more information. [compile-host-path]
-                    </code>
-                </para>
-
-                <para>
-                    The log for the
-                    <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>
-                    task indicates that paths on the host were searched
-                    for files, which is not appropriate when cross-compiling.
-                    Look for "is unsafe for cross-compilation" or "CROSS COMPILE
-                    Badness" in the specified log file.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-install-host-path'>
-                    <code>
-     &lt;recipename&gt;: The install log indicates that host include and/or library paths were used. Please check the log '&lt;logfile&gt;' for more information. [install-host-path]
-                    </code>
-                </para>
-
-                <para>
-                    The log for the
-                    <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-                    task indicates that paths on the host were searched
-                    for files, which is not appropriate when cross-compiling.
-                    Look for "is unsafe for cross-compilation"
-                    or "CROSS COMPILE Badness" in the specified log file.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-autoconf-log'>
-                    <code>
-     This autoconf log indicates errors, it looked at host include and/or library paths while determining system capabilities. Rerun configure task after fixing this. The path was '&lt;path&gt;'
-                    </code>
-                </para>
-
-                <para>
-                    The log for the
-                    <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>
-                    task indicates that paths on the host were searched
-                    for files, which is not appropriate when cross-compiling.
-                    Look for "is unsafe for cross-compilation" or
-                    "CROSS COMPILE Badness" in the specified log file.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-pkgname'>
-                    <code>
-     &lt;packagename&gt; doesn't match the [a-z0-9.+-]+ regex [pkgname]
-                    </code>
-                </para>
-
-                <para>
-                    The convention within the OpenEmbedded build system
-                    (sometimes enforced by the package manager itself) is to
-                    require that package names are all lower case
-                    and to allow a restricted set of characters.
-                    If your recipe name does not match this, or you add
-                    packages to
-                    <link linkend='var-PACKAGES'><filename>PACKAGES</filename></link>
-                    that do not conform to the convention, then you
-                    will receive this error.
-                    Rename your recipe.
-                    Or, if you have added a non-conforming package name to
-                    <filename>PACKAGES</filename>, change the package name
-                    appropriately.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-unknown-configure-option'>
-                    <code>
-     &lt;recipe&gt;: configure was passed unrecognized options: &lt;options&gt; [unknown-configure-option]
-                    </code>
-                </para>
-
-                <para>
-                    The configure script is reporting that the specified
-                    options are unrecognized.
-                    This situation could be because the options
-                    were previously valid but have been removed from the
-                    configure script.
-                    Or, there was a mistake when the options were added
-                    and there is another option that should be used instead.
-                    If you are unsure, consult the upstream build
-                    documentation, the
-                    <filename>./configure --help</filename> output,
-                    and the upstream change log or release notes.
-                    Once you have worked out what the appropriate
-                    change is, you can update
-                    <link linkend='var-EXTRA_OECONF'><filename>EXTRA_OECONF</filename></link>,
-                    <link linkend='var-PACKAGECONFIG_CONFARGS'><filename>PACKAGECONFIG_CONFARGS</filename></link>,
-                    or the individual
-                    <link linkend='var-PACKAGECONFIG'><filename>PACKAGECONFIG</filename></link>
-                    option values accordingly.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-pn-overrides'>
-                    <code>
-     Recipe &lt;recipefile&gt; has PN of "&lt;recipename&gt;" which is in OVERRIDES, this can result in unexpected behavior. [pn-overrides]
-                    </code>
-                </para>
-
-                <para>
-                    The specified recipe has a name
-                    (<link linkend='var-PN'><filename>PN</filename></link>)
-                    value that appears in
-                    <link linkend='var-OVERRIDES'><filename>OVERRIDES</filename></link>.
-                    If a recipe is named such that its <filename>PN</filename>
-                    value matches something already in
-                    <filename>OVERRIDES</filename> (e.g. <filename>PN</filename>
-                    happens to be the same as
-                    <link linkend='var-MACHINE'><filename>MACHINE</filename></link>
-                    or
-                    <link linkend='var-DISTRO'><filename>DISTRO</filename></link>),
-                    it can have unexpected consequences.
-                    For example, assignments such as
-                    <filename>FILES_${PN} = "xyz"</filename> effectively
-                    turn into <filename>FILES = "xyz"</filename>.
-                    Rename your recipe (or if <filename>PN</filename> is being
-                    set explicitly, change the <filename>PN</filename> value) so
-                    that the conflict does not occur.
-                    See
-                    <link linkend='var-FILES'><filename>FILES</filename></link>
-                    for additional information.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-pkgvarcheck'>
-                    <code>
-     &lt;recipefile&gt;: Variable &lt;variable&gt; is set as not being package specific, please fix this. [pkgvarcheck]
-                    </code>
-                </para>
-
-                <para>
-                    Certain variables
-                    (<link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>,
-                    <link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link>,
-                    <link linkend='var-RSUGGESTS'><filename>RSUGGESTS</filename></link>,
-                    <link linkend='var-RCONFLICTS'><filename>RCONFLICTS</filename></link>,
-                    <link linkend='var-RPROVIDES'><filename>RPROVIDES</filename></link>,
-                    <link linkend='var-RREPLACES'><filename>RREPLACES</filename></link>,
-                    <link linkend='var-FILES'><filename>FILES</filename></link>,
-                    <filename>pkg_preinst</filename>,
-                    <filename>pkg_postinst</filename>,
-                    <filename>pkg_prerm</filename>,
-                    <filename>pkg_postrm</filename>, and
-                    <link linkend='var-ALLOW_EMPTY'><filename>ALLOW_EMPTY</filename></link>)
-                    should always be set specific to a package (i.e. they
-                    should be set with a package name override such as
-                    <filename>RDEPENDS_${PN} = "value"</filename> rather than
-                    <filename>RDEPENDS = "value"</filename>).
-                    If you receive this error, correct any assignments to these
-                    variables within your recipe.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-already-stripped'>
-                    <code>
-     File '&lt;file&gt;' from &lt;recipename&gt; was already stripped, this will prevent future debugging! [already-stripped]
-                    </code>
-                </para>
-
-                <para>
-                    Produced binaries have already been stripped prior to the
-                    build system extracting debug symbols.
-                    It is common for upstream software projects to default to
-                    stripping debug symbols for output binaries.
-                    In order for debugging to work on the target using
-                    <filename>-dbg</filename> packages, this stripping must be
-                    disabled.
-                </para>
-
-                <para>
-                    Depending on the build system used by the software being
-                    built, disabling this stripping could be as easy as
-                    specifying an additional configure option.
-                    If not, disabling stripping might involve patching
-                    the build scripts.
-                    In the latter case, look for references to "strip" or
-                    "STRIP", or the "-s" or "-S" command-line options being
-                    specified on the linker command line (possibly
-                    through the compiler command line if preceded with "-Wl,").
-                    <note>
-                        Disabling stripping here does not mean that the final
-                        packaged binaries will be unstripped.
-                        Once the OpenEmbedded build system splits out debug
-                        symbols to the <filename>-dbg</filename> package,
-                        it will then strip the symbols from the binaries.
-                    </note>
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-packages-list'>
-                    <code>
-     &lt;packagename&gt; is listed in PACKAGES multiple times, this leads to packaging errors. [packages-list]
-                    </code>
-                </para>
-
-                <para>
-                    Package names must appear only once in the
-                    <link linkend='var-PACKAGES'><filename>PACKAGES</filename></link>
-                    variable.
-                    You might receive this error if you are attempting to add a
-                    package to <filename>PACKAGES</filename> that is
-                    already in the variable's value.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-files-invalid'>
-                    <code>
-     FILES variable for package &lt;packagename&gt; contains '//' which is invalid. Attempting to fix this but you should correct the metadata. [files-invalid]
-                    </code>
-                </para>
-
-                <para>
-                    The string "//" is invalid in a Unix path.
-                    Correct all occurrences where this string appears in a
-                    <link linkend='var-FILES'><filename>FILES</filename></link>
-                    variable so that there is only a single "/".
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-installed-vs-shipped'>
-                    <code>
-      &lt;recipename&gt;: Files/directories were installed but not shipped in any package [installed-vs-shipped]
-                    </code>
-                </para>
-
-                <para>
-                    Files have been installed within the
-                    <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-                    task but have not been included in any package by way of the
-                    <link linkend='var-FILES'><filename>FILES</filename></link>
-                    variable.
-                    Files that do not appear in any package cannot be present in
-                    an image later on in the build process.
-                    You need to do one of the following:
-                    <itemizedlist>
-                        <listitem><para>
-                            Add the files to <filename>FILES</filename> for the
-                            package you want them to appear in (e.g.
-                            <filename>FILES_${</filename><link linkend='var-PN'><filename>PN</filename></link><filename>}</filename> for the main
-                            package).
-                            </para></listitem>
-                        <listitem><para>
-                            Delete the files at the end of the
-                            <filename>do_install</filename> task if the files
-                            are not needed in any package.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-old-and-new-package-and-version-names'>
-                    <code>
-     &lt;oldpackage&gt;-&lt;oldpkgversion&gt; was registered as shlib provider for &lt;library&gt;, changing it to &lt;newpackage&gt;-&lt;newpkgversion&gt; because it was built later
-                    </code>
-                </para>
-
-                <para>
-                    This message means that both
-                    <filename>&lt;oldpackage&gt;</filename> and
-                    <filename>&lt;newpackage&gt;</filename> provide the specified
-                    shared library.
-                    You can expect this message when a recipe has been renamed.
-                    However, if that is not the case, the message might indicate
-                    that a private version of a library is being erroneously
-                    picked up as the provider for a common library.
-                    If that is the case, you should add the library's
-                    <filename>.so</filename> file name to
-                    <link linkend='var-PRIVATE_LIBS'><filename>PRIVATE_LIBS</filename></link>
-                    in the recipe that provides
-                    the private version of the library.
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        <itemizedlist>
-            <listitem>
-                <para id='qa-issue-unlisted-pkg-lics'>
-                    <code>
-     LICENSE_&lt;packagename&gt; includes licenses (&lt;licenses&gt;) that are not listed in LICENSE [unlisted-pkg-lics]
-                    </code>
-                </para>
-
-                <para>
-                    The <link linkend='var-LICENSE'><filename>LICENSE</filename></link>
-		    of the recipe should be a superset of all the licenses of
-		    all packages produced by this recipe.
-		    In other words, any license in <filename>LICENSE_*</filename>
-		    should also appear in
-                    <link linkend='var-LICENSE'><filename>LICENSE</filename></link>.
-                </para>
-
-                <para>
-                    &nbsp;
-                </para>
-            </listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='configuring-and-disabling-qa-checks'>
-    <title>Configuring and Disabling QA Checks</title>
-
-    <para>
-        You can configure the QA checks globally so that specific check
-        failures either raise a warning or an error message, using the
-        <link linkend='var-WARN_QA'><filename>WARN_QA</filename></link> and
-        <link linkend='var-ERROR_QA'><filename>ERROR_QA</filename></link>
-        variables, respectively.
-        You can also disable checks within a particular recipe using
-        <link linkend='var-INSANE_SKIP'><filename>INSANE_SKIP</filename></link>.
-        For information on how to work with the QA checks, see the
-        "<link linkend='ref-classes-insane'><filename>insane.bbclass</filename></link>"
-        section.
-        <note><title>Tip</title>
-            Please keep in mind that the QA checks exist in order to
-            detect real or potential problems in the packaged output.
-            So exercise caution when disabling these checks.
-        </note>
-    </para>
-</section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/ref-manual/ref-release-process.rst b/poky/documentation/ref-manual/ref-release-process.rst
index be041e7..172385c 100644
--- a/poky/documentation/ref-manual/ref-release-process.rst
+++ b/poky/documentation/ref-manual/ref-release-process.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *****************************************************
 Yocto Project Releases and the Stable Release Process
diff --git a/poky/documentation/ref-manual/ref-release-process.xml b/poky/documentation/ref-manual/ref-release-process.xml
deleted file mode 100644
index 87f5308..0000000
--- a/poky/documentation/ref-manual/ref-release-process.xml
+++ /dev/null
@@ -1,256 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='ref-release-process'>
-<title>Yocto Project Releases and the Stable Release Process</title>
-
-<para>
-    The Yocto Project release process is predictable and consists of both
-    major and minor (point) releases.
-    This brief chapter provides information on how releases are named, their
-    life cycle, and their stability.
-</para>
-
-<section id='major-and-minor-release-cadence'>
-    <title>Major and Minor Release Cadence</title>
-
-    <para>
-        The Yocto Project delivers major releases (e.g. &DISTRO;) using a six
-        month cadence roughly timed each April and October of the year.
-        Following are examples of some major YP releases with their codenames
-        also shown.
-        See the
-        "<link linkend='major-release-codenames'>Major Release Codenames</link>"
-        section for information on codenames used with major releases.
-        <literallayout class='monospaced'>
-    2.2 (Morty)
-    2.1 (Krogoth)
-    2.0 (Jethro)
-        </literallayout>
-        While the cadence is never perfect, this timescale facilitates
-        regular releases that have strong QA cycles while not overwhelming
-        users with too many new releases.
-        The cadence is predictable and avoids many major holidays in various
-        geographies.
-    </para>
-
-    <para>
-        The Yocto project delivers minor (point) releases on an unscheduled
-        basis and are usually driven by the accumulation of enough significant
-        fixes or enhancements to the associated major release.
-        Following are some example past point releases:
-        <literallayout class='monospaced'>
-    2.1.1
-    2.1.2
-    2.2.1
-        </literallayout>
-        The point release indicates a point in the major release branch where
-        a full QA cycle and release process validates the content of the new
-        branch.
-        <note>
-            Realize that there can be patches merged onto the stable release
-            branches as and when they become available.
-        </note>
-    </para>
-</section>
-
-<section id='major-release-codenames'>
-    <title>Major Release Codenames</title>
-
-    <para>
-        Each major release receives a codename that identifies the release in
-        the
-        <ulink url='&YOCTO_DOCS_OM_URL;#yocto-project-repositories'>Yocto Project Source Repositories</ulink>.
-        The concept is that branches of
-        <link linkend='metadata'>Metadata</link>
-        with the same codename are likely to be compatible and thus
-        work together.
-        <note>
-            Codenames are associated with major releases because a Yocto
-            Project release number (e.g. &DISTRO;) could conflict with
-            a given layer or company versioning scheme.
-            Codenames are unique, interesting, and easily identifiable.
-        </note>
-        Releases are given a nominal release version as well but the codename
-        is used in repositories for this reason.
-        You can find information on Yocto Project releases and codenames at
-        <ulink url='https://wiki.yoctoproject.org/wiki/Releases'></ulink>.
-    </para>
-</section>
-
-<section id='stable-release-process'>
-    <title>Stable Release Process</title>
-
-    <para>
-        Once released, the release enters the stable release process at which
-        time a person is assigned as the maintainer for that stable release.
-        This maintainer monitors activity for the release by investigating
-        and handling nominated patches and backport activity.
-        Only fixes and enhancements that have first been applied on the
-        "master" branch (i.e. the current, in-development branch) are
-        considered for backporting to a stable release.
-        <note>
-            The current Yocto Project policy regarding backporting is to
-            consider bug fixes and security fixes only.
-            Policy dictates that features are not backported to a stable
-            release.
-            This policy means generic recipe version upgrades are unlikely to
-            be accepted for backporting.
-            The exception to this policy occurs when a strong reason exists
-            such as the fix happens to also be the preferred upstream approach.
-        </note>
-    </para>
-
-    <para>
-        Stable release branches have strong maintenance for about a year after
-        their initial release.
-        Should significant issues be found for any release regardless of its
-        age, fixes could be backported to older releases.
-        For issues that are not backported given an older release,
-        Community LTS trees and branches exist where
-        community members share patches for older releases.
-        However, these types of patches do not go through the same release
-        process as do point releases.
-        You can find more information about stable branch maintenance at
-        <ulink url='https://wiki.yoctoproject.org/wiki/Stable_branch_maintenance'></ulink>.
-    </para>
-</section>
-
-<section id='testing-and-quality-assurance'>
-    <title>Testing and Quality Assurance</title>
-
-    <para>
-        Part of the Yocto Project development and release process is quality
-        assurance through the execution of test strategies.
-        Test strategies provide the Yocto Project team a way to ensure a
-        release is validated.
-        Additionally, because the test strategies are visible to you as a
-        developer, you can validate your projects.
-        This section overviews the available test infrastructure used in the
-        Yocto Project.
-        For information on how to run available tests on your projects, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#performing-automated-runtime-testing'>Performing Automated Runtime Testing</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-
-    <para>
-        The QA/testing infrastructure is woven into the project to the point
-        where core developers take some of it for granted.
-        The infrastructure consists of the following pieces:
-        <itemizedlist>
-            <listitem><para>
-                <filename>bitbake-selftest</filename>:
-                A standalone command that runs unit tests on key pieces of
-                BitBake and its fetchers.
-                </para></listitem>
-            <listitem><para>
-                <link linkend='ref-classes-sanity'><filename>sanity.bbclass</filename></link>:
-                This automatically included class checks the build environment
-                for missing tools (e.g. <filename>gcc</filename>) or common
-                misconfigurations such as
-                <link linkend='var-MACHINE'><filename>MACHINE</filename></link>
-                set incorrectly.
-                </para></listitem>
-            <listitem><para>
-                <link linkend='ref-classes-insane'><filename>insane.bbclass</filename></link>:
-                This class checks the generated output from builds for sanity.
-                For example, if building for an ARM target, did the build
-                produce ARM binaries.
-                If, for example, the build produced PPC binaries then there
-                is a problem.
-                </para></listitem>
-            <listitem><para>
-                <link linkend='ref-classes-testimage*'><filename>testimage.bbclass</filename></link>:
-                This class performs runtime testing of images after they are
-                built.
-                The tests are usually used with
-                <ulink url='&YOCTO_DOCS_DEV_URL;#dev-manual-qemu'>QEMU</ulink>
-                to boot the images and check the combined runtime result
-                boot operation and functions.
-                However, the test can also use the IP address of a machine to
-                test.
-                </para></listitem>
-            <listitem><para>
-                <ulink url='&YOCTO_DOCS_DEV_URL;#testing-packages-with-ptest'><filename>ptest</filename></ulink>:
-                Runs tests against packages produced during the build for a
-                given piece of software.
-                The test allows the packages to be be run within a target
-                image.
-                </para></listitem>
-            <listitem><para>
-                <filename>oe-selftest</filename>:
-                Tests combination BitBake invocations.
-                These tests operate outside the OpenEmbedded build system
-                itself.
-                The <filename>oe-selftest</filename> can run all tests by
-                default or can run selected tests or test suites.
-                <note>
-                    Running <filename>oe-selftest</filename> requires
-                    host packages beyond the "Essential" grouping.
-                    See the
-                    "<link linkend='required-packages-for-the-build-host'>Required Packages for the Build Host</link>"
-                    section for more information.
-                </note>
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        Originally, much of this testing was done manually.
-        However, significant effort has been made to automate the tests so
-        that more people can use them and the Yocto Project development team
-        can run them faster and more efficiently.
-    </para>
-
-    <para>
-        The Yocto Project's main Autobuilder
-        (<filename>autobuilder.yoctoproject.org</filename>) publicly tests
-        each Yocto Project release's code in the
-        <link linkend='oe-core'>OE-Core</link>, Poky, and BitBake
-        repositories.
-        The testing occurs for both the current state of the
-        "master" branch and also for submitted patches.
-        Testing for submitted patches usually occurs in the
-        "ross/mut" branch in the <filename>poky-contrib</filename> repository
-        (i.e. the master-under-test branch) or in the "master-next" branch
-        in the <filename>poky</filename> repository.
-        <note>
-            You can find all these branches in the Yocto Project
-            <ulink url='&YOCTO_DOCS_OM_URL;#source-repositories'>Source Repositories</ulink>.
-        </note>
-        Testing within these public branches ensures in a publicly visible way
-        that all of the main supposed architectures and recipes in OE-Core
-        successfully build and behave properly.
-    </para>
-
-    <para>
-        Various features such as <filename>multilib</filename>, sub
-        architectures (e.g. <filename>x32</filename>,
-        <filename>poky-tiny</filename>, <filename>musl</filename>,
-        <filename>no-x11</filename> and and so forth),
-        <filename>bitbake-selftest</filename>, and
-        <filename>oe-selftest</filename> are tested as part of
-        the QA process of a release.
-        Complete testing and validation for a release takes the Autobuilder
-        workers several hours.
-        <note>
-            The Autobuilder workers are non-homogeneous, which means regular
-            testing across a variety of Linux distributions occurs.
-            The Autobuilder is limited to only testing QEMU-based setups and
-            not real hardware.
-        </note>
-    </para>
-
-    <para>
-        Finally, in addition to the Autobuilder's tests, the Yocto Project
-        QA team also performs testing on a variety of platforms, which includes
-        actual hardware, to ensure expected results.
-    </para>
-</section>
-
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/ref-manual/ref-structure.rst b/poky/documentation/ref-manual/ref-structure.rst
index 48a4433..ef07354 100644
--- a/poky/documentation/ref-manual/ref-structure.rst
+++ b/poky/documentation/ref-manual/ref-structure.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 **************************
 Source Directory Structure
diff --git a/poky/documentation/ref-manual/ref-structure.xml b/poky/documentation/ref-manual/ref-structure.xml
deleted file mode 100644
index 8588e9c..0000000
--- a/poky/documentation/ref-manual/ref-structure.xml
+++ /dev/null
@@ -1,1123 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='ref-structure'>
-
-<title>Source Directory Structure</title>
-
-<para>
-    The <link linkend='source-directory'>Source Directory</link>
-    consists of numerous files, directories and subdirectories;
-    understanding their locations and contents is key to using the
-    Yocto Project effectively.
-    This chapter describes the Source Directory and gives information about
-    those files and directories.
-</para>
-
-<para>
-    For information on how to establish a local Source Directory on your
-    development system, see the
-    "<ulink url='&YOCTO_DOCS_DEV_URL;#locating-yocto-project-source-files'>Locating Yocto Project Source Files</ulink>"
-    section in the Yocto Project Development Tasks Manual.
-</para>
-
-    <note>
-        The OpenEmbedded build system does not support file or directory names that
-        contain spaces.
-        Be sure that the Source Directory you use does not contain these types
-        of names.
-    </note>
-
-<section id='structure-core'>
-    <title>Top-Level Core Components</title>
-
-    <para>
-        This section describes the top-level components of the
-        <link linkend='source-directory'>Source Directory</link>.
-    </para>
-
-    <section id='structure-core-bitbake'>
-        <title><filename>bitbake/</filename></title>
-
-        <para>
-            This directory includes a copy of BitBake for ease of use.
-            The copy usually matches the current stable BitBake release from
-            the BitBake project.
-            BitBake, a
-            <link linkend='metadata'>Metadata</link>
-            interpreter, reads the Yocto Project Metadata and runs the tasks
-            defined by that data.
-            Failures are usually caused by errors in your Metadata and not from BitBake itself;
-            consequently, most users do not need to worry about BitBake.
-        </para>
-
-        <para>
-            When you run the <filename>bitbake</filename> command, the
-            main BitBake executable (which resides in the
-            <filename>bitbake/bin/</filename> directory) starts.
-            Sourcing the environment setup script (i.e.
-            <link linkend="structure-core-script"><filename>&OE_INIT_FILE;</filename></link>)
-            places the <filename>scripts/</filename> and
-            <filename>bitbake/bin/</filename> directories (in that order) into
-            the shell's <filename>PATH</filename> environment variable.
-        </para>
-
-        <para>
-            For more information on BitBake, see the
-            <ulink url='&YOCTO_DOCS_BB_URL;'>BitBake User Manual</ulink>.
-        </para>
-    </section>
-
-    <section id='structure-core-build'>
-        <title><filename>build/</filename></title>
-
-        <para>
-            This directory contains user configuration files and the output
-            generated by the OpenEmbedded build system in its standard configuration where
-            the source tree is combined with the output.
-            The
-            <link linkend='build-directory'>Build Directory</link>
-            is created initially when you <filename>source</filename>
-            the OpenEmbedded build environment setup script
-            (i.e.
-            <link linkend='structure-core-script'><filename>&OE_INIT_FILE;</filename></link>).
-        </para>
-
-        <para>
-            It is also possible to place output and configuration
-            files in a directory separate from the
-            <link linkend='source-directory'>Source Directory</link>
-            by providing a directory name when you <filename>source</filename>
-            the setup script.
-            For information on separating output from your local
-            Source Directory files (commonly described as an "out of tree" build), see the
-            "<link linkend='structure-core-script'><filename>&OE_INIT_FILE;</filename></link>"
-            section.
-        </para>
-    </section>
-
-    <section id='handbook'>
-        <title><filename>documentation/</filename></title>
-
-        <para>
-            This directory holds the source for the Yocto Project documentation
-            as well as templates and tools that allow you to generate PDF and HTML
-            versions of the manuals.
-            Each manual is contained in its own sub-folder;
-            for example, the files for this reference manual reside in
-            the <filename>ref-manual/</filename> directory.
-        </para>
-    </section>
-
-    <section id='structure-core-meta'>
-        <title><filename>meta/</filename></title>
-
-        <para>
-            This directory contains the minimal, underlying OpenEmbedded-Core metadata.
-            The directory holds recipes, common classes, and machine
-            configuration for strictly emulated targets (<filename>qemux86</filename>,
-            <filename>qemuarm</filename>, and so forth.)
-        </para>
-    </section>
-
-    <section id='structure-core-meta-poky'>
-        <title><filename>meta-poky/</filename></title>
-
-        <para>
-            Designed above the <filename>meta/</filename> content, this directory
-            adds just enough metadata to define the Poky reference distribution.
-        </para>
-    </section>
-
-    <section id='structure-core-meta-yocto-bsp'>
-        <title><filename>meta-yocto-bsp/</filename></title>
-
-        <para>
-            This directory contains the Yocto Project reference
-            hardware Board Support Packages (BSPs).
-            For more information on BSPs, see the
-            <ulink url='&YOCTO_DOCS_BSP_URL;'>Yocto Project Board Support Package (BSP) Developer's Guide</ulink>.
-        </para>
-    </section>
-
-    <section id='structure-meta-selftest'>
-        <title><filename>meta-selftest/</filename></title>
-
-        <para>
-            This directory adds additional recipes and append files
-            used by the OpenEmbedded selftests to verify the behavior
-            of the build system.
-            You do not have to add this layer to your
-            <filename>bblayers.conf</filename> file unless you want to run the
-            selftests.
-        </para>
-    </section>
-
-    <section id='structure-meta-skeleton'>
-        <title><filename>meta-skeleton/</filename></title>
-
-        <para>
-            This directory contains template recipes for BSP and kernel development.
-        </para>
-    </section>
-
-    <section id='structure-core-scripts'>
-        <title><filename>scripts/</filename></title>
-
-        <para>
-            This directory contains various integration scripts that implement
-            extra functionality in the Yocto Project environment (e.g. QEMU scripts).
-            The <link linkend="structure-core-script"><filename>&OE_INIT_FILE;</filename></link>
-            script prepends this directory to the shell's
-            <filename>PATH</filename> environment variable.
-        </para>
-
-        <para>
-            The <filename>scripts</filename> directory has useful scripts that assist in contributing
-            back to the Yocto Project, such as <filename>create-pull-request</filename> and
-            <filename>send-pull-request</filename>.
-        </para>
-    </section>
-
-    <section id='structure-core-script'>
-        <title><filename>&OE_INIT_FILE;</filename></title>
-
-        <para>
-            This script sets up the OpenEmbedded build environment.
-            Running this script with the <filename>source</filename> command in
-            a shell makes changes to <filename>PATH</filename> and sets other
-            core BitBake variables based on the current working directory.
-            You need to run an environment setup script before running BitBake
-            commands.
-            The script uses other scripts within the
-            <filename>scripts</filename> directory to do the bulk of the work.
-        </para>
-
-        <para>
-            When you run this script, your Yocto Project environment is set
-            up, a
-            <link linkend='build-directory'>Build Directory</link>
-            is created, your working directory becomes the Build Directory,
-            and you are presented with some simple suggestions as to what to do
-            next, including a list of some possible targets to build.
-            Here is an example:
-            <literallayout class='monospaced'>
-     $ source oe-init-build-env
-
-     ### Shell environment set up for builds. ###
-
-     You can now run 'bitbake &lt;target&gt;'
-
-     Common targets are:
-         core-image-minimal
-         core-image-sato
-         meta-toolchain
-         meta-ide-support
-
-     You can also run generated qemu images with a command like 'runqemu qemux86-64'
-            </literallayout>
-            The default output of the <filename>oe-init-build-env</filename> script
-            is from the <filename>conf-notes.txt</filename> file, which is found in the
-            <filename>meta-poky</filename> directory within the
-            <link linkend='source-directory'>Source Directory</link>.
-            If you design a custom distribution, you can include your own version
-            of this configuration file to mention the targets defined by your
-            distribution.
-            See the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-a-custom-template-configuration-directory'>Creating a Custom Template Configuration Directory</ulink>"
-            section in the Yocto Project Development Tasks Manual for more
-            information.
-        </para>
-
-        <para>
-            By default, running this script without a Build Directory
-            argument creates the <filename>build/</filename> directory
-            in your current working directory.
-            If you provide a Build Directory argument when you
-            <filename>source</filename> the script, you direct the OpenEmbedded
-            build system to create a Build Directory of your choice.
-            For example, the following command creates a Build Directory named
-            <filename>mybuilds/</filename> that is outside of the
-            <link linkend='source-directory'>Source Directory</link>:
-            <literallayout class='monospaced'>
-     $ source &OE_INIT_FILE; ~/mybuilds
-            </literallayout>
-            The OpenEmbedded build system uses the template configuration
-            files, which are found by default in the
-            <filename>meta-poky/conf/</filename> directory in the
-            Source Directory.
-            See the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-a-custom-template-configuration-directory'>Creating a Custom Template Configuration Directory</ulink>"
-            section in the Yocto Project Development Tasks Manual for more
-            information.
-            <note>
-                The OpenEmbedded build system does not support file or directory names that
-                contain spaces.
-                If you attempt to run the <filename>&OE_INIT_FILE;</filename> script
-                from a Source Directory that contains spaces in either the filenames
-                or directory names, the script returns an error indicating no such
-                file or directory.
-                Be sure to use a Source Directory free of names containing spaces.
-            </note>
-        </para>
-    </section>
-
-    <section id='structure-basic-top-level'>
-        <title><filename>LICENSE, README, and README.hardware</filename></title>
-
-        <para>
-            These files are standard top-level files.
-        </para>
-    </section>
-</section>
-
-<section id='structure-build'>
-    <title>The Build Directory - <filename>build/</filename></title>
-
-    <para>
-        The OpenEmbedded build system creates the
-        <link linkend='build-directory'>Build Directory</link>
-        when you run the build environment setup script
-        <link
-linkend='structure-core-script'><filename>&OE_INIT_FILE;</filename></link>.
-        If you do not give the Build Directory a specific name when you run
-        the setup script, the name defaults to <filename>build/</filename>.
-    </para>
-
-    <para>
-        For subsequent parsing and processing, the name of the Build
-        directory is available via the
-        <link linkend='var-TOPDIR'><filename>TOPDIR</filename></link> variable.
-    </para>
-
-    <section id='structure-build-buildhistory'>
-        <title><filename>build/buildhistory/</filename></title>
-
-        <para>
-            The OpenEmbedded build system creates this directory when you
-            enable build history via the <filename>buildhistory</filename> class file.
-            The directory organizes build information into image, packages, and
-            SDK subdirectories.
-            For information on the build history feature, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#maintaining-build-output-quality'>Maintaining Build Output Quality</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id='structure-build-conf-local.conf'>
-        <title><filename>build/conf/local.conf</filename></title>
-
-        <para>
-            This configuration file contains all the local user configurations
-            for your build environment.
-            The <filename>local.conf</filename> file contains documentation on
-            the various configuration options.
-            Any variable set here overrides any variable set elsewhere within
-            the environment unless that variable is hard-coded within a file
-            (e.g. by using '=' instead of '?=').
-            Some variables are hard-coded for various reasons but such
-            variables are relatively rare.
-        </para>
-
-        <para>
-            At a minimum, you would normally edit this file to select the target
-            <filename><link linkend='var-MACHINE'>MACHINE</link></filename>,
-            which package types you wish to use
-            (<link linkend='var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></link>),
-            and the location from which you want to access downloaded files
-            (<filename><link linkend='var-DL_DIR'>DL_DIR</link></filename>).
-        </para>
-
-        <para>
-            If <filename>local.conf</filename> is not present when you
-            start the build, the OpenEmbedded build system creates it from
-            <filename>local.conf.sample</filename> when
-            you <filename>source</filename> the top-level build environment
-            setup script
-            <link linkend='structure-core-script'><filename>&OE_INIT_FILE;</filename></link>.
-        </para>
-
-        <para>
-            The source <filename>local.conf.sample</filename> file used
-            depends on the <filename>$TEMPLATECONF</filename> script variable,
-            which defaults to <filename>meta-poky/conf/</filename>
-            when you are building from the Yocto Project development
-            environment, and to <filename>meta/conf/</filename> when
-            you are building from the OpenEmbedded-Core environment.
-            Because the script variable points to the source of the
-            <filename>local.conf.sample</filename> file, this implies that
-            you can configure your build environment from any layer by setting
-            the variable in the top-level build environment setup script as
-            follows:
-            <literallayout class='monospaced'>
-     TEMPLATECONF=<replaceable>your_layer</replaceable>/conf
-            </literallayout>
-            Once the build process gets the sample file, it uses
-            <filename>sed</filename> to substitute final
-            <filename>${</filename><link linkend='var-OEROOT'><filename>OEROOT</filename></link><filename>}</filename>
-            values for all <filename>##OEROOT##</filename> values.
-            <note>
-                You can see how the <filename>TEMPLATECONF</filename> variable
-                is used by looking at the
-                <filename>scripts/oe-setup-builddir</filename> script in the
-                <link linkend='source-directory'>Source Directory</link>.
-                You can find the Yocto Project version of the
-                <filename>local.conf.sample</filename> file in the
-                <filename>meta-poky/conf</filename> directory.
-            </note>
-        </para>
-    </section>
-
-    <section id='structure-build-conf-bblayers.conf'>
-        <title><filename>build/conf/bblayers.conf</filename></title>
-
-        <para>
-            This configuration file defines
-            <ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>layers</ulink>,
-            which are directory trees, traversed (or walked) by BitBake.
-            The <filename>bblayers.conf</filename> file uses the
-            <link linkend='var-BBLAYERS'><filename>BBLAYERS</filename></link>
-            variable to list the layers BitBake tries to find.
-        </para>
-
-        <para>
-            If <filename>bblayers.conf</filename> is not present when you
-            start the build, the OpenEmbedded build system creates it from
-            <filename>bblayers.conf.sample</filename> when
-            you <filename>source</filename> the top-level build environment
-            setup script (i.e.
-            <link linkend='structure-core-script'><filename>&OE_INIT_FILE;</filename></link>).
-        </para>
-
-        <para>
-            As with the <filename>local.conf</filename> file,
-            the source <filename>bblayers.conf.sample</filename> file used
-            depends on the <filename>$TEMPLATECONF</filename> script variable,
-            which defaults to <filename>meta-poky/conf/</filename>
-            when you are building from the Yocto Project development
-            environment, and to <filename>meta/conf/</filename> when
-            you are building from the OpenEmbedded-Core environment.
-            Because the script variable points to the source of the
-            <filename>bblayers.conf.sample</filename> file, this implies that
-            you can base your build from any layer by setting the variable in
-            the top-level build environment setup script as follows:
-            <literallayout class='monospaced'>
-     TEMPLATECONF=<replaceable>your_layer</replaceable>/conf
-            </literallayout>
-            Once the build process gets the sample file, it uses
-            <filename>sed</filename> to substitute final
-            <filename>${</filename><link linkend='var-OEROOT'><filename>OEROOT</filename></link><filename>}</filename>
-            values for all <filename>##OEROOT##</filename> values.
-            <note>
-                You can see how the <filename>TEMPLATECONF</filename> variable
-                <filename>scripts/oe-setup-builddir</filename> script in the
-                <link linkend='source-directory'>Source Directory</link>.
-                You can find the Yocto Project version of the
-                <filename>bblayers.conf.sample</filename> file in the
-                <filename>meta-poky/conf/</filename> directory.
-            </note>
-        </para>
-    </section>
-
-    <section id='structure-build-conf-sanity_info'>
-        <title><filename>build/cache/sanity_info</filename></title>
-
-        <para>
-            This file indicates the state of the sanity checks and is created
-            during the build.
-        </para>
-    </section>
-
-    <section id='structure-build-downloads'>
-        <title><filename>build/downloads/</filename></title>
-
-        <para>
-            This directory contains downloaded upstream source tarballs.
-            You can reuse the directory for multiple builds or move
-            the directory to another location.
-            You can control the location of this directory through the
-            <filename><link linkend='var-DL_DIR'>DL_DIR</link></filename> variable.
-        </para>
-    </section>
-
-    <section id='structure-build-sstate-cache'>
-        <title><filename>build/sstate-cache/</filename></title>
-
-        <para>
-            This directory contains the shared state cache.
-            You can reuse the directory for multiple builds or move
-            the directory to another location.
-            You can control the location of this directory through the
-            <filename><link linkend='var-SSTATE_DIR'>SSTATE_DIR</link></filename> variable.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp'>
-        <title><filename>build/tmp/</filename></title>
-
-        <para>
-            The OpenEmbedded build system creates and uses this directory
-            for all the build system's output.
-            The
-            <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>
-            variable points to this directory.
-        </para>
-
-        <para>
-            BitBake creates this directory if it does not exist.
-            As a last resort, to clean up a build and start it from scratch
-            (other than the downloads), you can remove everything in the
-            <filename>tmp</filename> directory or get rid of the
-            directory completely.
-            If you do, you should also completely remove the
-            <filename>build/sstate-cache</filename> directory.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-buildstats'>
-        <title><filename>build/tmp/buildstats/</filename></title>
-
-        <para>
-            This directory stores the build statistics.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-cache'>
-        <title><filename>build/tmp/cache/</filename></title>
-
-        <para>
-            When BitBake parses the metadata (recipes and configuration files),
-            it caches the results in <filename>build/tmp/cache/</filename>
-            to speed up future builds.
-            The results are stored on a per-machine basis.
-        </para>
-
-        <para>
-            During subsequent builds, BitBake checks each recipe (together
-            with, for example, any files included or appended to it) to see
-            if they have been modified.
-            Changes can be detected, for example, through file modification
-            time (mtime) changes and hashing of file contents.
-            If no changes to the file are detected, then the parsed result
-            stored in the cache is reused.
-            If the file has changed, it is reparsed.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-deploy'>
-        <title><filename>build/tmp/deploy/</filename></title>
-
-        <para>
-            This directory contains any "end result" output from the
-            OpenEmbedded build process.
-            The <link linkend='var-DEPLOY_DIR'><filename>DEPLOY_DIR</filename></link>
-            variable points to this directory.
-            For more detail on the contents of the <filename>deploy</filename>
-            directory, see the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#images-dev-environment'>Images</ulink>"
-            and
-            "<ulink url='&YOCTO_DOCS_OM_URL;#sdk-dev-environment'>Application Development SDK</ulink>"
-            sections in the Yocto Project Overview and Concepts Manual.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-deploy-deb'>
-        <title><filename>build/tmp/deploy/deb/</filename></title>
-
-        <para>
-            This directory receives any <filename>.deb</filename> packages produced by
-            the build process.
-            The packages are sorted into feeds for different architecture types.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-deploy-rpm'>
-        <title><filename>build/tmp/deploy/rpm/</filename></title>
-
-        <para>
-            This directory receives any <filename>.rpm</filename> packages produced by
-            the build process.
-            The packages are sorted into feeds for different architecture types.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-deploy-ipk'>
-        <title><filename>build/tmp/deploy/ipk/</filename></title>
-
-        <para>
-            This directory receives <filename>.ipk</filename> packages produced by
-            the build process.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-deploy-licenses'>
-        <title><filename>build/tmp/deploy/licenses/</filename></title>
-
-        <para>
-            This directory receives package licensing information.
-            For example, the directory contains sub-directories for <filename>bash</filename>,
-            <filename>busybox</filename>, and <filename>glibc</filename> (among others) that in turn
-            contain appropriate <filename>COPYING</filename> license files with other licensing information.
-            For information on licensing, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#maintaining-open-source-license-compliance-during-your-products-lifecycle'>Maintaining Open Source License Compliance During Your Product's Lifecycle</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-deploy-images'>
-        <title><filename>build/tmp/deploy/images/</filename></title>
-
-        <para>
-            This directory is populated with the basic output objects of the
-            build (think of them as the "generated artifacts" of the build process),
-            including things like the boot loader image, kernel, root filesystem and more.
-            If you want to flash the resulting image from a build onto a device,
-            look here for the necessary components.
-        </para>
-
-        <para>
-            Be careful when deleting files in this directory.
-            You can safely delete old images from this directory (e.g.
-            <filename>core-image-*</filename>).
-            However, the kernel (<filename>*zImage*</filename>, <filename>*uImage*</filename>, etc.),
-            bootloader and other supplementary files might be deployed here prior to building an
-            image.
-            Because these files are not directly produced from the image, if you
-            delete them they will not be automatically re-created when you build the image again.
-        </para>
-
-        <para>
-            If you do accidentally delete files here, you will need to force them to be
-            re-created.
-            In order to do that, you will need to know the target that produced them.
-            For example, these commands rebuild and re-create the kernel files:
-            <literallayout class='monospaced'>
-     $ bitbake -c clean virtual/kernel
-     $ bitbake virtual/kernel
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-deploy-sdk'>
-        <title><filename>build/tmp/deploy/sdk/</filename></title>
-
-        <para>
-            The OpenEmbedded build system creates this directory to hold
-            toolchain installer scripts which, when executed, install the
-            sysroot that matches your target hardware.
-            You can find out more about these installers in the
-            "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-building-an-sdk-installer'>Building an SDK Installer</ulink>"
-            section in the Yocto Project Application Development and the
-            Extensible Software Development Kit (eSDK) manual.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-sstate-control'>
-        <title><filename>build/tmp/sstate-control/</filename></title>
-
-        <para>
-            The OpenEmbedded build system uses this directory for the
-            shared state manifest files.
-            The shared state code uses these files to record the files
-            installed by each sstate task so that the files can be removed
-            when cleaning the recipe or when a newer version is about to
-            be installed.
-            The build system also uses the manifests to detect and produce
-            a warning when files from one task are overwriting those from
-            another.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-sysroots-components'>
-        <title><filename>build/tmp/sysroots-components/</filename></title>
-
-        <para>
-            This directory is the location of the sysroot contents that the
-            task
-            <link linkend='ref-tasks-prepare_recipe_sysroot'><filename>do_prepare_recipe_sysroot</filename></link>
-            links or copies into the recipe-specific sysroot for each
-            recipe listed in
-            <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>.
-            Population of this directory is handled through shared state, while
-            the path is specified by the
-            <link linkend='var-COMPONENTS_DIR'><filename>COMPONENTS_DIR</filename></link>
-            variable. Apart from a few unusual circumstances, handling of the
-            <filename>sysroots-components</filename> directory should be
-            automatic, and recipes should not directly reference
-            <filename>build/tmp/sysroots-components</filename>.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-sysroots'>
-        <title><filename>build/tmp/sysroots/</filename></title>
-
-        <para>
-            Previous versions of the OpenEmbedded build system used to
-            create a global shared sysroot per machine along with a native
-            sysroot.
-            Beginning with the &DISTRO; version of the Yocto Project,
-            sysroots exist in recipe-specific
-            <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>
-            directories.
-            Thus, the <filename>build/tmp/sysroots/</filename> directory
-            is unused.
-            <note>
-                The <filename>build/tmp/sysroots/</filename> directory
-                can still be populated using the
-                <filename>bitbake build-sysroots</filename> command and can
-                be used for compatibility in some cases.
-                However, in general it is not recommended to populate
-                this directory.
-                Individual recipe-specific sysroots should be used.
-            </note>
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-stamps'>
-        <title><filename>build/tmp/stamps/</filename></title>
-
-        <para>
-            This directory holds information that BitBake uses for
-            accounting purposes to track what tasks have run and when they
-            have run.
-            The directory is sub-divided by architecture, package name, and
-            version.
-            Following is an example:
-            <literallayout class='monospaced'>
-     stamps/all-poky-linux/distcc-config/1.0-r0.do_build-2fdd....2do
-            </literallayout>
-            Although the files in the directory are empty of data,
-            BitBake uses the filenames and timestamps for tracking purposes.
-        </para>
-
-        <para>
-            For information on how BitBake uses stamp files to determine if
-            a task should be rerun, see the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#stamp-files-and-the-rerunning-of-tasks'>Stamp Files and the Rerunning of Tasks</ulink>"
-            section in the Yocto Project Overview and Concepts Manual.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-log'>
-        <title><filename>build/tmp/log/</filename></title>
-
-        <para>
-            This directory contains general logs that are not otherwise placed using the
-            package's <filename><link linkend='var-WORKDIR'>WORKDIR</link></filename>.
-            Examples of logs are the output from the
-            <filename>do_check_pkg</filename> or
-            <filename>do_distro_check</filename> tasks.
-            Running a build does not necessarily mean this directory is created.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-work'>
-        <title><filename>build/tmp/work/</filename></title>
-
-        <para>
-            This directory contains architecture-specific work sub-directories
-            for packages built by BitBake.
-            All tasks execute from the appropriate work directory.
-            For example, the source for a particular package is unpacked,
-            patched, configured and compiled all within its own work directory.
-            Within the work directory, organization is based on the package group
-            and version for which the source is being compiled
-            as defined by the
-            <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>.
-        </para>
-
-        <para>
-            It is worth considering the structure of a typical work directory.
-            As an example, consider <filename>linux-yocto-kernel-3.0</filename>
-            on the machine <filename>qemux86</filename>
-            built within the Yocto Project.
-            For this package, a work directory of
-            <filename>tmp/work/qemux86-poky-linux/linux-yocto/3.0+git1+&lt;.....&gt;</filename>,
-            referred to as the <filename>WORKDIR</filename>, is created.
-            Within this directory, the source is unpacked to
-            <filename>linux-qemux86-standard-build</filename> and then patched by Quilt.
-            (See the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#using-a-quilt-workflow'>Using Quilt in Your Workflow</ulink>"
-            section in the Yocto Project Development Tasks Manual for more
-            information.)
-            Within the <filename>linux-qemux86-standard-build</filename> directory,
-            standard Quilt directories <filename>linux-3.0/patches</filename>
-            and <filename>linux-3.0/.pc</filename> are created,
-            and standard Quilt commands can be used.
-        </para>
-
-        <para>
-            There are other directories generated within <filename>WORKDIR</filename>.
-            The most important directory is <filename>WORKDIR/temp/</filename>,
-            which has log files for each task (<filename>log.do_*.pid</filename>)
-            and contains the scripts BitBake runs for each task
-            (<filename>run.do_*.pid</filename>).
-            The <filename>WORKDIR/image/</filename> directory is where "make
-            install" places its output that is then split into sub-packages
-            within <filename>WORKDIR/packages-split/</filename>.
-        </para>
-    </section>
-
-    <section id='structure-build-tmp-work-tunearch-recipename-version'>
-        <title><filename>build/tmp/work/<replaceable>tunearch</replaceable>/<replaceable>recipename</replaceable>/<replaceable>version</replaceable>/</filename></title>
-
-        <para>
-            The recipe work directory - <filename>${WORKDIR}</filename>.
-        </para>
-
-        <para>
-            As described earlier in the
-            "<link linkend='structure-build-tmp-sysroots'><filename>build/tmp/sysroots/</filename></link>"
-            section, beginning with the &DISTRO; release of the Yocto
-            Project, the OpenEmbedded build system builds each recipe in its
-            own work directory (i.e.
-            <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>).
-            The path to the work directory is constructed using the
-            architecture of the given build (e.g.
-            <link linkend='var-TUNE_PKGARCH'><filename>TUNE_PKGARCH</filename></link>,
-            <link linkend='var-MACHINE_ARCH'><filename>MACHINE_ARCH</filename></link>,
-            or "allarch"), the recipe name, and the version of the recipe (i.e.
-            <link linkend='var-PE'><filename>PE</filename></link><filename>:</filename><link linkend='var-PV'><filename>PV</filename></link><filename>-</filename><link linkend='var-PR'><filename>PR</filename></link>).
-        </para>
-
-        <para>
-            A number of key subdirectories exist within each recipe
-            work directory:
-            <itemizedlist>
-                <listitem><para>
-                    <filename>${WORKDIR}/temp</filename>:
-                    Contains the log files of each task executed for this
-                    recipe, the "run" files for each executed task, which
-                    contain the code run, and a
-                    <filename>log.task_order</filename> file, which lists the
-                    order in which tasks were executed.
-                   </para></listitem>
-                <listitem><para>
-                    <filename>${WORKDIR}/image</filename>:
-                    Contains the output of the
-                    <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-                    task, which corresponds to the
-                    <filename>${</filename><link linkend='var-D'><filename>D</filename></link><filename>}</filename>
-                    variable in that task.
-                   </para></listitem>
-                <listitem><para>
-                    <filename>${WORKDIR}/pseudo</filename>:
-                    Contains the pseudo database and log for any tasks executed
-                    under pseudo for the recipe.
-                   </para></listitem>
-                <listitem><para>
-                    <filename>${WORKDIR}/sysroot-destdir</filename>:
-                    Contains the output of the
-                    <link linkend='ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></link>
-                    task.
-                   </para></listitem>
-                <listitem><para>
-                    <filename>${WORKDIR}/package</filename>:
-                    Contains the output of the
-                    <link linkend='ref-tasks-package'><filename>do_package</filename></link>
-                    task before the output is split into individual packages.
-                   </para></listitem>
-                <listitem><para>
-                    <filename>${WORKDIR}/packages-split</filename>:
-                    Contains the output of the <filename>do_package</filename>
-                    task after the output has been split into individual
-                    packages.
-                    Subdirectories exist for each individual package created
-                    by the recipe.
-                   </para></listitem>
-                <listitem><para>
-                    <filename>${WORKDIR}/recipe-sysroot</filename>:
-                    A directory populated with the target dependencies of the
-                    recipe.
-                    This directory looks like the target filesystem and
-                    contains libraries that the recipe might need to link
-                    against (e.g. the C library).
-                   </para></listitem>
-                <listitem><para>
-                    <filename>${WORKDIR}/recipe-sysroot-native</filename>:
-                    A directory populated with the native dependencies of the
-                    recipe.
-                    This directory contains the tools the recipe needs to build
-                    (e.g. the compiler, Autoconf, libtool, and so forth).
-                   </para></listitem>
-                <listitem><para>
-                    <filename>${WORKDIR}/build</filename>:
-                    This subdirectory applies only to recipes that support
-                    builds where the source is separate from the
-                    build artifacts.
-                    The OpenEmbedded build system uses this directory as a
-                    separate build directory (i.e.
-                    <filename>${</filename><link linkend='var-B'><filename>B</filename></link><filename>}</filename>).
-                   </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='structure-build-work-shared'>
-        <title><filename>build/tmp/work-shared/</filename></title>
-
-        <para>
-            For efficiency, the OpenEmbedded build system creates and uses
-            this directory to hold recipes that share a work directory with
-            other recipes.
-            In practice, this is only used for <filename>gcc</filename>
-            and its variants (e.g. <filename>gcc-cross</filename>,
-            <filename>libgcc</filename>, <filename>gcc-runtime</filename>,
-            and so forth).
-        </para>
-    </section>
-</section>
-
-<section id='structure-meta'>
-    <title>The Metadata - <filename>meta/</filename></title>
-
-    <para>
-        As mentioned previously,
-        <link linkend='metadata'>Metadata</link> is the core
-        of the Yocto Project.
-        Metadata has several important subdivisions:
-    </para>
-
-    <section id='structure-meta-classes'>
-        <title><filename>meta/classes/</filename></title>
-
-        <para>
-            This directory contains the <filename>*.bbclass</filename> files.
-            Class files are used to abstract common code so it can be reused by multiple
-            packages.
-            Every package inherits the <filename>base.bbclass</filename> file.
-            Examples of other important classes are <filename>autotools.bbclass</filename>, which
-            in theory allows any Autotool-enabled package to work with the Yocto Project with minimal effort.
-            Another example is <filename>kernel.bbclass</filename> that contains common code and functions
-            for working with the Linux kernel.
-            Functions like image generation or packaging also have their specific class files
-            such as <filename>image.bbclass</filename>, <filename>rootfs_*.bbclass</filename> and
-            <filename>package*.bbclass</filename>.
-        </para>
-
-        <para>
-            For reference information on classes, see the
-            "<link linkend='ref-classes'>Classes</link>" chapter.
-        </para>
-    </section>
-
-    <section id='structure-meta-conf'>
-        <title><filename>meta/conf/</filename></title>
-
-        <para>
-            This directory contains the core set of configuration files that start from
-            <filename>bitbake.conf</filename> and from which all other configuration
-            files are included.
-            See the include statements at the end of the
-            <filename>bitbake.conf</filename> file and you will note that even
-            <filename>local.conf</filename> is loaded from there.
-            While <filename>bitbake.conf</filename> sets up the defaults, you can often override
-            these by using the (<filename>local.conf</filename>) file, machine file or
-            the distribution configuration file.
-        </para>
-    </section>
-
-    <section id='structure-meta-conf-machine'>
-        <title><filename>meta/conf/machine/</filename></title>
-
-        <para>
-            This directory contains all the machine configuration files.
-            If you set <filename>MACHINE = "qemux86"</filename>,
-            the OpenEmbedded build system looks for a <filename>qemux86.conf</filename> file in this
-            directory.
-            The <filename>include</filename> directory contains various data common to multiple machines.
-            If you want to add support for a new machine to the Yocto Project, look in this directory.
-        </para>
-    </section>
-
-    <section id='structure-meta-conf-distro'>
-        <title><filename>meta/conf/distro/</filename></title>
-
-        <para>
-            The contents of this directory controls any distribution-specific
-            configurations.
-            For the Yocto Project, the <filename>defaultsetup.conf</filename> is the main file here.
-            This directory includes the versions and the
-            <filename>SRCDATE</filename> definitions for applications that are configured here.
-            An example of an alternative configuration might be <filename>poky-bleeding.conf</filename>.
-            Although this file mainly inherits its configuration from Poky.
-        </para>
-    </section>
-
-    <section id='structure-meta-conf-machine-sdk'>
-        <title><filename>meta/conf/machine-sdk/</filename></title>
-
-        <para>
-            The OpenEmbedded build system searches this directory for
-            configuration files that correspond to the value of
-            <link linkend='var-SDKMACHINE'><filename>SDKMACHINE</filename></link>.
-            By default, 32-bit and 64-bit x86 files ship with the Yocto
-            Project that support some SDK hosts.
-            However, it is possible to extend that support to other SDK hosts
-            by adding additional configuration files in this subdirectory
-            within another layer.
-        </para>
-    </section>
-
-    <section id='structure-meta-files'>
-        <title><filename>meta/files/</filename></title>
-
-        <para>
-            This directory contains common license files and several text files
-            used by the build system.
-            The text files contain minimal device information and
-            lists of files and directories with known permissions.
-        </para>
-    </section>
-
-    <section id='structure-meta-lib'>
-        <title><filename>meta/lib/</filename></title>
-
-        <para>
-            This directory contains OpenEmbedded Python library code
-            used during the build process.
-        </para>
-    </section>
-
-    <section id='structure-meta-recipes-bsp'>
-        <title><filename>meta/recipes-bsp/</filename></title>
-
-        <para>
-            This directory contains anything linking to specific hardware or hardware
-            configuration information such as "u-boot" and "grub".
-        </para>
-    </section>
-
-    <section id='structure-meta-recipes-connectivity'>
-        <title><filename>meta/recipes-connectivity/</filename></title>
-
-        <para>
-            This directory contains libraries and applications related to communication with other devices.
-        </para>
-    </section>
-
-    <section id='structure-meta-recipes-core'>
-        <title><filename>meta/recipes-core/</filename></title>
-
-        <para>
-            This directory contains what is needed to build a basic working Linux image
-            including commonly used dependencies.
-        </para>
-    </section>
-
-    <section id='structure-meta-recipes-devtools'>
-        <title><filename>meta/recipes-devtools/</filename></title>
-
-        <para>
-            This directory contains tools that are primarily used by the build system.
-            The tools, however, can also be used on targets.
-        </para>
-    </section>
-
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--->
diff --git a/poky/documentation/ref-manual/ref-style.css b/poky/documentation/ref-manual/ref-style.css
deleted file mode 100644
index 622ceb8..0000000
--- a/poky/documentation/ref-manual/ref-style.css
+++ /dev/null
@@ -1,1035 +0,0 @@
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diff --git a/poky/documentation/ref-manual/ref-system-requirements.rst b/poky/documentation/ref-manual/ref-system-requirements.rst
index 56218e4..54f38f6 100644
--- a/poky/documentation/ref-manual/ref-system-requirements.rst
+++ b/poky/documentation/ref-manual/ref-system-requirements.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *******************
 System Requirements
diff --git a/poky/documentation/ref-manual/ref-system-requirements.xml b/poky/documentation/ref-manual/ref-system-requirements.xml
deleted file mode 100644
index ac8b003..0000000
--- a/poky/documentation/ref-manual/ref-system-requirements.xml
+++ /dev/null
@@ -1,577 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='ref-manual-system-requirements'>
-<title>System Requirements</title>
-
-    <para>
-        Welcome to the Yocto Project Reference Manual!
-        This manual provides reference information for the current release
-        of the Yocto Project, and
-        is most effectively used after you have an understanding
-        of the basics of the Yocto Project.
-        The manual is neither meant to be read as a starting point to the
-        Yocto Project, nor read from start to finish.
-        Rather, use this manual to find variable definitions, class
-        descriptions, and so forth as needed during the course of using
-        the Yocto Project.
-    </para>
-
-    <para>
-        For introductory information on the Yocto Project, see the
-        <ulink url='&YOCTO_HOME_URL;'>Yocto Project Website</ulink> and the
-        "<ulink url='&YOCTO_DOCS_OM_URL;#overview-development-environment'>Yocto Project Development Environment</ulink>"
-        chapter in the Yocto Project Overview and Concepts Manual.
-    </para>
-
-    <para>
-        If you want to use the Yocto Project to quickly build an image
-        without having to understand concepts, work through the
-        <ulink url='&YOCTO_DOCS_BRIEF_URL;'>Yocto Project Quick Build</ulink>
-        document.
-        You can find "how-to" information in the
-        <ulink url='&YOCTO_DOCS_DEV_URL;'>Yocto Project Development Tasks Manual</ulink>.
-        You can find Yocto Project overview and conceptual information in the
-        <ulink url='&YOCTO_DOCS_OM_URL;'>Yocto Project Overview and Concepts Manual</ulink>.
-        <note><title>Tip</title>
-            For more information about the Yocto Project Documentation set,
-            see the
-            "<link linkend='resources-links-and-related-documentation'>Links and Related Documentation</link>"
-            section.
-        </note>
-    </para>
-
-    <section id='detailed-supported-distros'>
-        <title>Supported Linux Distributions</title>
-
-        <para>
-            Currently, the Yocto Project is supported on the following
-            distributions:
-            <note><title>Notes</title>
-                <itemizedlist>
-                    <listitem><para>
-                        Yocto Project releases are tested against the stable
-                        Linux distributions in the following list.
-                        The Yocto Project should work on other distributions but
-                        validation is not performed against them.
-                        </para></listitem>
-                    <listitem><para>
-                        In particular, the Yocto Project does not support
-                        and currently has no plans to support
-                        rolling-releases or development distributions due to
-                        their constantly changing nature.
-                        We welcome patches and bug reports, but keep in mind
-                        that our priority is on the supported platforms listed
-                        below.
-                        </para></listitem>
-                    <listitem><para>
-                        You may use Windows Subsystem For Linux v2 to set up a build
-                        host using Windows 10, but validation is not performed
-                        against build hosts using WSLv2.
-                        <note>
-                          The Yocto Project is not compatible with WSLv1, it is
-                          compatible but not officially supported nor validated
-                          with WSLv2, if you still decide to use WSL please upgrade
-                          to WSLv2.
-                        </note>
-                        </para></listitem>
-                    <listitem><para>
-                        If you encounter problems, please go to
-                        <ulink url='&YOCTO_BUGZILLA_URL;'>Yocto Project Bugzilla</ulink>
-                        and submit a bug.
-                        We are interested in hearing about your experience.
-                        For information on how to submit a bug, see the
-                        Yocto Project
-                        <ulink url='&YOCTO_WIKI_URL;/wiki/Bugzilla_Configuration_and_Bug_Tracking'>Bugzilla wiki page</ulink>
-                        and the
-                        "<ulink url='&YOCTO_DOCS_DEV_URL;#submitting-a-defect-against-the-yocto-project'>Submitting a Defect Against the Yocto Project</ulink>"
-                        section in the Yocto Project Development Tasks Manual.
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-            <itemizedlist>
-                <listitem><para>Ubuntu 16.04 (LTS)</para></listitem>
-                <listitem><para>Ubuntu 18.04 (LTS)</para></listitem>
-                <listitem><para>Ubuntu 20.04</para></listitem>
-                <listitem><para>Fedora 30</para></listitem>
-                <listitem><para>Fedora 31</para></listitem>
-                <listitem><para>Fedora 32</para></listitem>
-                <listitem><para>CentOS 7.x</para></listitem>
-                <listitem><para>CentOS 8.x</para></listitem>
-                <listitem><para>Debian GNU/Linux 8.x (Jessie)</para></listitem>
-                <listitem><para>Debian GNU/Linux 9.x (Stretch)</para></listitem>
-                <listitem><para>Debian GNU/Linux 10.x (Buster)</para></listitem>
-                <listitem><para>OpenSUSE Leap 15.1</para></listitem>
-            </itemizedlist>
-        </para>
-
-        <note>
-            While the Yocto Project Team attempts to ensure all Yocto Project
-            releases are one hundred percent compatible with each officially
-            supported Linux distribution, instances might exist where you
-            encounter a problem while using the Yocto Project on a specific
-            distribution.
-        </note>
-    </section>
-
-    <section id='required-packages-for-the-build-host'>
-    <title>Required Packages for the Build Host</title>
-
-        <para>
-            The list of packages you need on the host development system can
-            be large when covering all build scenarios using the Yocto Project.
-            This section describes required packages according to
-            Linux distribution and function.
-        </para>
-
-        <section id='ubuntu-packages'>
-            <title>Ubuntu and Debian</title>
-
-            <para>
-                The following list shows the required packages by function
-                given a supported Ubuntu or Debian Linux distribution:
-                <note><title>Notes</title>
-                    <itemizedlist>
-                        <listitem><para>
-                            If your build system has the
-                            <filename>oss4-dev</filename> package installed, you
-                            might experience QEMU build failures due to the package
-                            installing its own custom
-                            <filename>/usr/include/linux/soundcard.h</filename> on
-                            the Debian system.
-                            If you run into this situation, either of the following
-                            solutions exist:
-                            <literallayout class='monospaced'>
-     $ sudo apt-get build-dep qemu
-     $ sudo apt-get remove oss4-dev
-                            </literallayout>
-                        </para></listitem>
-                        <listitem><para>
-                            For Debian-8, <filename>python3-git</filename> and <filename>pylint3</filename> are no longer available via <filename>apt-get</filename>.
-                            <literallayout class='monospaced'>
-     $ sudo pip3 install GitPython pylint==1.9.5
-                            </literallayout>
-                        </para></listitem>
-                    </itemizedlist>
-                 </note>
-                <itemizedlist>
-                    <listitem><para><emphasis>Essentials:</emphasis>
-                        Packages needed to build an image on a headless
-                        system:
-                        <literallayout class='monospaced'>
-     $ sudo apt-get install &UBUNTU_HOST_PACKAGES_ESSENTIAL;
-                        </literallayout></para></listitem>
-                    <listitem><para><emphasis>Documentation:</emphasis>
-                        Packages needed if you are going to build out the
-                        Yocto Project documentation manuals:
-                        <literallayout class='monospaced'>
-     $ sudo apt-get install make xsltproc docbook-utils fop dblatex xmlto
-                        </literallayout></para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='fedora-packages'>
-            <title>Fedora Packages</title>
-
-            <para>
-                The following list shows the required packages by function
-                given a supported Fedora Linux distribution:
-                <itemizedlist>
-                    <listitem><para><emphasis>Essentials:</emphasis>
-                        Packages needed to build an image for a headless
-                        system:
-                        <literallayout class='monospaced'>
-     $ sudo dnf install &FEDORA_HOST_PACKAGES_ESSENTIAL;
-                        </literallayout></para></listitem>
-                    <listitem><para><emphasis>Documentation:</emphasis>
-                        Packages needed if you are going to build out the
-                        Yocto Project documentation manuals:
-                        <literallayout class='monospaced'>
-     $ sudo dnf install docbook-style-dsssl docbook-style-xsl \
-     docbook-dtds docbook-utils fop libxslt dblatex xmlto
-                        </literallayout></para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='opensuse-packages'>
-            <title>openSUSE Packages</title>
-
-            <para>
-                The following list shows the required packages by function
-                given a supported openSUSE Linux distribution:
-                <itemizedlist>
-                    <listitem><para><emphasis>Essentials:</emphasis>
-                        Packages needed to build an image for a headless
-                        system:
-                        <literallayout class='monospaced'>
-     $ sudo zypper install &OPENSUSE_HOST_PACKAGES_ESSENTIAL;
-                        </literallayout></para></listitem>
-                    <listitem><para><emphasis>Documentation:</emphasis>
-                        Packages needed if you are going to build out the
-                        Yocto Project documentation manuals:
-                        <literallayout class='monospaced'>
-     $ sudo zypper install dblatex xmlto
-                        </literallayout></para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='centos-7-packages'>
-            <title>CentOS-7 Packages</title>
-
-            <para>
-                The following list shows the required packages by function
-                given a supported CentOS-7 Linux distribution:
-                <itemizedlist>
-                    <listitem><para><emphasis>Essentials:</emphasis>
-                        Packages needed to build an image for a headless
-                        system:
-                        <literallayout class='monospaced'>
-     $ sudo yum install &CENTOS7_HOST_PACKAGES_ESSENTIAL;
-                        </literallayout>
-                        <note><title>Notes</title>
-                            <itemizedlist>
-                                <listitem><para>
-                                    Extra Packages for Enterprise Linux
-                                    (i.e. <filename>epel-release</filename>)
-                                    is a collection of packages from Fedora
-                                    built on RHEL/CentOS for easy installation
-                                    of packages not included in enterprise
-                                    Linux by default.
-                                    You need to install these packages
-                                    separately.
-                                </para></listitem>
-                                <listitem><para>
-                                    The <filename>makecache</filename> command
-                                    consumes additional Metadata from
-                                    <filename>epel-release</filename>.
-                                </para></listitem>
-                            </itemizedlist>
-                        </note>
-                    </para></listitem>
-                    <listitem><para><emphasis>Documentation:</emphasis>
-                        Packages needed if you are going to build out the
-                        Yocto Project documentation manuals:
-                        <literallayout class='monospaced'>
-     $ sudo yum install docbook-style-dsssl docbook-style-xsl \
-     docbook-dtds docbook-utils fop libxslt dblatex xmlto
-                        </literallayout>
-                    </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='centos-8-packages'>
-            <title>CentOS-8 Packages</title>
-
-            <para>
-                The following list shows the required packages by function
-                given a supported CentOS-8 Linux distribution:
-                <itemizedlist>
-                    <listitem><para><emphasis>Essentials:</emphasis>
-                        Packages needed to build an image for a headless
-                        system:
-                        <literallayout class='monospaced'>
-     $ sudo dnf install &CENTOS8_HOST_PACKAGES_ESSENTIAL;
-                        </literallayout>
-                        <note><title>Notes</title>
-                            <itemizedlist>
-                                <listitem><para>
-                                    Extra Packages for Enterprise Linux
-                                    (i.e. <filename>epel-release</filename>)
-                                    is a collection of packages from Fedora
-                                    built on RHEL/CentOS for easy installation
-                                    of packages not included in enterprise
-                                    Linux by default.
-                                    You need to install these packages
-                                    separately.
-                                </para></listitem>
-                                <listitem><para>
-                                    The <filename>PowerTools</filename> repo
-                                    provides additional packages such as
-                                    <filename>rpcgen</filename> and
-                                    <filename>texinfo</filename>.
-                                </para></listitem>
-                                <listitem><para>
-                                    The <filename>makecache</filename> command
-                                    consumes additional Metadata from
-                                    <filename>epel-release</filename>.
-                                </para></listitem>
-                            </itemizedlist>
-                        </note>
-                    </para></listitem>
-                    <listitem><para><emphasis>Documentation:</emphasis>
-                        Packages needed if you are going to build out the
-                        Yocto Project documentation manuals:
-                        <literallayout class='monospaced'>
-     $ sudo dnf install docbook-style-dsssl docbook-style-xsl \
-     docbook-dtds docbook-utils fop libxslt dblatex xmlto
-                        </literallayout>
-                    </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-    </section>
-
-    <section id='required-git-tar-python-and-gcc-versions'>
-        <title>Required Git, tar, Python and gcc Versions</title>
-
-        <para>
-            In order to use the build system, your host development system
-            must meet the following version requirements for Git, tar, and
-            Python:
-            <itemizedlist>
-                <listitem><para>Git 1.8.3.1 or greater</para></listitem>
-                <listitem><para>tar 1.28 or greater</para></listitem>
-                <listitem><para>Python 3.5.0 or greater</para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            If your host development system does not meet all these requirements,
-            you can resolve this by installing a <filename>buildtools</filename>
-            tarball that contains these tools.
-            You can get the tarball one of two ways: download a pre-built
-            tarball or use BitBake to build the tarball.
-        </para>
-
-        <para>
-            In addition, your host development system must meet the following
-            version requirement for gcc:
-            <itemizedlist>
-                <listitem><para>gcc 5.0 or greater</para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            If your host development system does not meet this requirement,
-            you can resolve this by installing a <filename>buildtools-extended</filename>
-            tarball that contains additional tools, the equivalent of <filename>buildtools-essential</filename>.
-        </para>
-        <section id='installing-a-pre-built-buildtools-tarball-with-install-buildtools-script'>
-            <title>Installing a Pre-Built <filename>buildtools</filename> Tarball with <filename>install-buildtools</filename> script</title>
-
-            <para>
-                The <filename>install-buildtools</filename> script is the easiest
-                of the three methods by which you can get these tools. It downloads
-                a pre-built buildtools installer and automatically installs the tools
-                for you:
-            <orderedlist>
-                <listitem><para>
-                    Execute the <filename>install-buildtools</filename> script.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     $ cd poky
-     $ scripts/install-buildtools --without-extended-buildtools \
-       --base-url &YOCTO_DL_URL;/releases/yocto \
-       --release yocto-&DISTRO; \
-       --installer-version &DISTRO;
-                    </literallayout>
-                    <para>
-                        During execution, the buildtools tarball will be downloaded,
-                        the checksum of the download will be verified, the installer
-                        will be run for you, and some basic checks will be run to
-                        to make sure the installation is functional.
-                    </para>
-                    <para>
-                        To avoid the need of <filename>sudo</filename> privileges,
-                        the <filename>install-buildtools</filename> script will
-                        by default tell the installer to install in:
-                        <literallayout class='monospaced'>
-     <replaceable>/path/to/</replaceable>poky/buildtools
-                        </literallayout>
-                    </para>
-                    <para>
-                        If your host development system needs the additional tools
-                        provided in the <filename>buildtools-extended</filename>
-                        tarball, you can instead execute the
-                        <filename>install-buildtools</filename> script with the
-                        default parameters:
-                        <literallayout class='monospaced'>
-     $ cd poky
-     $ scripts/install-buildtools
-                        </literallayout>
-                    </para>
-                </para></listitem>
-                <listitem><para>
-                    Source the tools environment setup script by using a
-                    command like the following:
-                    <literallayout class='monospaced'>
-     $ source <replaceable>/path/to/</replaceable>poky/buildtools/environment-setup-x86_64-pokysdk-linux
-                    </literallayout>
-                    Of course, you need to supply your installation directory and be
-                    sure to use the right file (i.e. i586 or x86_64).
-                </para>
-                <para>
-                    After you have sourced the setup script,
-                    the tools are added to <filename>PATH</filename>
-                    and any other environment variables required to run the
-                    tools are initialized.
-                    The results are working versions versions of Git, tar,
-                    Python and <filename>chrpath</filename>. And in the case of
-                    the <filename>buildtools-extended</filename> tarball, additional
-                    working versions of tools including <filename>gcc</filename>,
-                    <filename>make</filename> and the other tools included in
-                    <filename>packagegroup-core-buildessential</filename>.
-                </para></listitem>
-            </orderedlist>
-            </para>
-        </section>
-
-        <section id='downloading-a-pre-built-buildtools-tarball'>
-            <title>Downloading a Pre-Built <filename>buildtools</filename> Tarball</title>
-
-            <para>
-                Downloading and running a pre-built buildtools installer is
-                the easiest of the two methods by which you can get these tools:
-                <orderedlist>
-                    <listitem><para>
-                        Locate and download the <filename>*.sh</filename> at
-                        <ulink url='&YOCTO_RELEASE_DL_URL;/buildtools/'></ulink>.
-                        </para></listitem>
-                    <listitem><para>
-                        Execute the installation script.
-                        Here is an example for the traditional installer:
-                        <literallayout class='monospaced'>
-     $ sh ~/Downloads/x86_64-buildtools-nativesdk-standalone-&DISTRO;.sh
-                        </literallayout>
-                        Here is an example for the extended installer:
-                        <literallayout class='monospaced'>
-     $ sh ~/Downloads/x86_64-buildtools-extended-nativesdk-standalone-&DISTRO;.sh
-                        </literallayout>
-                        During execution, a prompt appears that allows you to
-                        choose the installation directory.
-                        For example, you could choose the following:
-                        <literallayout class='monospaced'>
-     /home/<replaceable>your-username</replaceable>/buildtools
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        Source the tools environment setup script by using a
-                        command like the following:
-                        <literallayout class='monospaced'>
-     $ source /home/<replaceable>your_username</replaceable>/buildtools/environment-setup-i586-poky-linux
-                        </literallayout>
-                        Of course, you need to supply your installation directory and be
-                        sure to use the right file (i.e. i585 or x86-64).
-                        </para>
-                        <para>
-                        After you have sourced the setup script,
-                        the tools are added to <filename>PATH</filename>
-                        and any other environment variables required to run the
-                        tools are initialized.
-                        The results are working versions versions of Git, tar,
-                        Python and <filename>chrpath</filename>. And in the case of
-                        the <filename>buildtools-extended</filename> tarball, additional
-                        working versions of tools including <filename>gcc</filename>,
-                        <filename>make</filename> and the other tools included in
-                        <filename>packagegroup-core-buildessential</filename>.
-                        </para></listitem>
-                </orderedlist>
-            </para>
-        </section>
-
-        <section id='building-your-own-buildtools-tarball'>
-            <title>Building Your Own <filename>buildtools</filename> Tarball</title>
-
-            <para>
-                Building and running your own buildtools installer applies
-                only when you have a build host that can already run BitBake.
-                In this case, you use that machine to build the
-                <filename>.sh</filename> file and then
-                take steps to transfer and run it on a
-                machine that does not meet the minimal Git, tar, and Python
-                (or gcc) requirements.
-            </para>
-
-            <para>
-                Here are the steps to take to build and run your own
-                buildtools installer:
-                <orderedlist>
-                    <listitem><para>
-                        On the machine that is able to run BitBake,
-                        be sure you have set up your build environment with
-                        the setup script
-                        (<link linkend='structure-core-script'><filename>&OE_INIT_FILE;</filename></link>).
-                        </para></listitem>
-                    <listitem><para>
-                        Run the BitBake command to build the tarball:
-                        <literallayout class='monospaced'>
-     $ bitbake buildtools-tarball
-                        </literallayout>
-                        or run the BitBake command to build the extended tarball:
-                        <literallayout class='monospaced'>
-     $ bitbake buildtools-extended-tarball
-                        </literallayout>
-                        <note>
-                        The
-                        <link linkend='var-SDKMACHINE'><filename>SDKMACHINE</filename></link>
-                        variable in your <filename>local.conf</filename> file
-                        determines whether you build tools for a 32-bit
-                        or 64-bit system.
-                       </note>
-                       Once the build completes, you can find the
-                       <filename>.sh</filename> file that installs
-                       the tools in the <filename>tmp/deploy/sdk</filename>
-                       subdirectory of the
-                       <link linkend='build-directory'>Build Directory</link>.
-                       The installer file has the string "buildtools"
-                       (or "buildtools-extended") in the name.
-                       </para></listitem>
-                   <listitem><para>
-                       Transfer the <filename>.sh</filename> file from the
-                       build host to the machine that does not meet the
-                       Git, tar, or Python (or gcc) requirements.
-                       </para></listitem>
-                   <listitem><para>
-                       On the machine that does not meet the requirements,
-                       run the <filename>.sh</filename> file
-                       to install the tools.
-                       Here is an example for the traditional installer:
-                       <literallayout class='monospaced'>
-     $ sh ~/Downloads/x86_64-buildtools-nativesdk-standalone-&DISTRO;.sh
-                       </literallayout>
-                       Here is an example for the extended installer:
-                       <literallayout class='monospaced'>
-     $ sh ~/Downloads/x86_64-buildtools-extended-nativesdk-standalone-&DISTRO;.sh
-                       </literallayout>
-                       During execution, a prompt appears that allows you to
-                       choose the installation directory.
-                       For example, you could choose the following:
-                       <literallayout class='monospaced'>
-     /home/<replaceable>your_username</replaceable>/buildtools
-                       </literallayout>
-                       </para></listitem>
-                    <listitem><para>
-                        Source the tools environment setup script by using a
-                        command like the following:
-                        <literallayout class='monospaced'>
-     $ source /home/<replaceable>your_username</replaceable>/buildtools/environment-setup-x86_64-poky-linux
-                        </literallayout>
-                        Of course, you need to supply your installation directory and be
-                        sure to use the right file (i.e. i586 or x86_64).
-                        </para>
-                        <para>
-                        After you have sourced the setup script,
-                        the tools are added to <filename>PATH</filename>
-                        and any other environment variables required to run the
-                        tools are initialized.
-                        The results are working versions versions of Git, tar,
-                        Python and <filename>chrpath</filename>. And in the case of
-                        the <filename>buildtools-extended</filename> tarball, additional
-                        working versions of tools including <filename>gcc</filename>,
-                        <filename>make</filename> and the other tools included in
-                        <filename>packagegroup-core-buildessential</filename>.
-                        </para></listitem>
-                </orderedlist>
-            </para>
-        </section>
-    </section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/ref-manual/ref-tasks.rst b/poky/documentation/ref-manual/ref-tasks.rst
index dcdff05..2569306 100644
--- a/poky/documentation/ref-manual/ref-tasks.rst
+++ b/poky/documentation/ref-manual/ref-tasks.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *****
 Tasks
diff --git a/poky/documentation/ref-manual/ref-tasks.xml b/poky/documentation/ref-manual/ref-tasks.xml
deleted file mode 100644
index 5b09b3f..0000000
--- a/poky/documentation/ref-manual/ref-tasks.xml
+++ /dev/null
@@ -1,1131 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='ref-tasks'>
-<title>Tasks</title>
-
-<para>
-    Tasks are units of execution for BitBake.
-    Recipes (<filename>.bb</filename> files) use tasks to complete
-    configuring, compiling, and packaging software.
-    This chapter provides a reference of the tasks defined in the
-    OpenEmbedded build system.
-</para>
-
-<section id='normal-recipe-build-tasks'>
-    <title>Normal Recipe Build Tasks</title>
-
-    <para>
-        The following sections describe normal tasks associated with building
-        a recipe.
-        For more information on tasks and dependencies, see the
-        "<ulink url='&YOCTO_DOCS_BB_URL;#tasks'>Tasks</ulink>" and
-        "<ulink url='&YOCTO_DOCS_BB_URL;#dependencies'>Dependencies</ulink>"
-        sections in the BitBake User Manual.
-    </para>
-
-    <section id='ref-tasks-build'>
-        <title><filename>do_build</filename></title>
-
-        <para>
-            The default task for all recipes.
-            This task depends on all other normal tasks
-            required to build a recipe.
-        </para>
-    </section>
-
-    <section id='ref-tasks-compile'>
-        <title><filename>do_compile</filename></title>
-
-        <para>
-            Compiles the source code.
-            This task runs with the current working directory set
-            to
-            <filename>${</filename><link linkend='var-B'><filename>B</filename></link><filename>}</filename>.
-        </para>
-
-        <para>
-            The default behavior of this task is to run the
-            <filename>oe_runmake</filename> function if a makefile
-            (<filename>Makefile</filename>, <filename>makefile</filename>,
-            or <filename>GNUmakefile</filename>) is found.
-            If no such file is found, the <filename>do_compile</filename>
-            task does nothing.
-        </para>
-    </section>
-
-    <section id='ref-tasks-compile_ptest_base'>
-        <title><filename>do_compile_ptest_base</filename></title>
-
-        <para>
-            Compiles the runtime test suite included in the software being
-            built.
-        </para>
-    </section>
-
-    <section id='ref-tasks-configure'>
-        <title><filename>do_configure</filename></title>
-
-        <para>
-            Configures the source by enabling and disabling any build-time and
-            configuration options for the software being built.
-            The task runs with the current working directory set to
-            <filename>${</filename><link linkend='var-B'><filename>B</filename></link><filename>}</filename>.
-        </para>
-
-        <para>
-            The default behavior of this task is to run
-            <filename>oe_runmake clean</filename> if a makefile
-            (<filename>Makefile</filename>, <filename>makefile</filename>,
-            or <filename>GNUmakefile</filename>) is found and
-            <link linkend='var-CLEANBROKEN'><filename>CLEANBROKEN</filename></link>
-            is not set to "1".
-            If no such file is found or the <filename>CLEANBROKEN</filename>
-            variable is set to "1", the <filename>do_configure</filename>
-            task does nothing.
-        </para>
-    </section>
-
-    <section id='ref-tasks-configure_ptest_base'>
-        <title><filename>do_configure_ptest_base</filename></title>
-
-        <para>
-            Configures the runtime test suite included in the software being
-            built.
-        </para>
-    </section>
-
-    <section id='ref-tasks-deploy'>
-        <title><filename>do_deploy</filename></title>
-
-        <para>
-            Writes output files that are to be deployed to
-            <filename>${</filename><link linkend='var-DEPLOY_DIR_IMAGE'><filename>DEPLOY_DIR_IMAGE</filename></link><filename>}</filename>.
-            The task runs with the current working directory set to
-            <filename>${</filename><link linkend='var-B'><filename>B</filename></link><filename>}</filename>.
-        </para>
-
-        <para>
-            Recipes implementing this task should inherit the
-            <link linkend='ref-classes-deploy'><filename>deploy</filename></link>
-            class and should write the output to
-            <filename>${</filename><link linkend='var-DEPLOYDIR'><filename>DEPLOYDIR</filename></link><filename>}</filename>,
-            which is not to be confused with <filename>${DEPLOY_DIR}</filename>.
-            The <filename>deploy</filename> class sets up
-            <filename>do_deploy</filename> as a shared state (sstate) task that
-            can be accelerated through sstate use.
-            The sstate mechanism takes care of copying the output from
-            <filename>${DEPLOYDIR}</filename> to
-            <filename>${DEPLOY_DIR_IMAGE}</filename>.
-            <note>
-            <title>Caution</title>
-                Do not write the output directly to
-                <filename>${DEPLOY_DIR_IMAGE}</filename>, as this causes
-                the sstate mechanism to malfunction.
-            </note>
-        </para>
-
-        <para>
-            The <filename>do_deploy</filename> task is not added as a task
-            by default and consequently needs to be added manually.
-            If you want the task to run after
-            <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>,
-            you can add it by doing the following:
-            <literallayout class='monospaced'>
-     addtask deploy after do_compile
-            </literallayout>
-            Adding <filename>do_deploy</filename> after other tasks works the
-            same way.
-            <note>
-                You do not need to add <filename>before do_build</filename>
-                to the <filename>addtask</filename> command (though it is
-                harmless), because the
-                <link linkend='ref-classes-base'><filename>base</filename></link>
-                class contains the following:
-                <literallayout class='monospaced'>
-     do_build[recrdeptask] += "do_deploy"
-                </literallayout>
-                See the
-                "<ulink url='&YOCTO_DOCS_BB_URL;#dependencies'>Dependencies</ulink>"
-                section in the BitBake User Manual for more information.
-            </note>
-        </para>
-
-        <para>
-            If the <filename>do_deploy</filename> task re-executes, any
-            previous output is removed (i.e. "cleaned").
-        </para>
-    </section>
-
-    <section id='ref-tasks-fetch'>
-        <title><filename>do_fetch</filename></title>
-
-        <para>
-            Fetches the source code.
-            This task uses the
-            <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>
-            variable and the argument's prefix to determine the correct
-            <ulink url='&YOCTO_DOCS_BB_URL;#bb-fetchers'>fetcher</ulink>
-            module.
-        </para>
-    </section>
-
-    <section id='ref-tasks-image'>
-        <title><filename>do_image</filename></title>
-
-        <para>
-            Starts the image generation process.
-            The <filename>do_image</filename> task runs after the
-            OpenEmbedded build system has run the
-            <link linkend='ref-tasks-rootfs'><filename>do_rootfs</filename></link>
-            task during which packages are identified for installation into
-            the image and the root filesystem is created, complete with
-            post-processing.
-        </para>
-
-        <para>
-            The <filename>do_image</filename> task performs pre-processing
-            on the image through the
-            <link linkend='var-IMAGE_PREPROCESS_COMMAND'><filename>IMAGE_PREPROCESS_COMMAND</filename></link>
-            and dynamically generates supporting
-            <filename>do_image_*</filename> tasks as needed.
-        </para>
-
-        <para>
-            For more information on image creation, see the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#image-generation-dev-environment'>Image Generation</ulink>"
-            section in the Yocto Project Overview and Concepts Manual.
-        </para>
-    </section>
-
-    <section id='ref-tasks-image-complete'>
-        <title><filename>do_image_complete</filename></title>
-
-        <para>
-            Completes the image generation process.
-            The <filename>do_image_complete</filename> task runs after the
-            OpenEmbedded build system has run the
-            <link linkend='ref-tasks-image'><filename>do_image</filename></link>
-            task during which image pre-processing occurs and through
-            dynamically generated <filename>do_image_*</filename> tasks the
-            image is constructed.
-        </para>
-
-        <para>
-            The <filename>do_image_complete</filename> task performs
-            post-processing on the image through the
-            <link linkend='var-IMAGE_POSTPROCESS_COMMAND'><filename>IMAGE_POSTPROCESS_COMMAND</filename></link>.
-        </para>
-
-        <para>
-            For more information on image creation, see the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#image-generation-dev-environment'>Image Generation</ulink>"
-            section in the Yocto Project Overview and Concepts Manual.
-        </para>
-    </section>
-
-    <section id='ref-tasks-install'>
-        <title><filename>do_install</filename></title>
-
-        <para>
-            Copies files that are to be packaged into the holding area
-            <filename>${</filename><link linkend='var-D'><filename>D</filename></link><filename>}</filename>.
-            This task runs with the current working directory set to
-            <filename>${</filename><link linkend='var-B'><filename>B</filename></link><filename>}</filename>,
-            which is the compilation directory.
-            The <filename>do_install</filename> task, as well as other tasks
-            that either directly or indirectly depend on the installed files
-            (e.g.
-            <link linkend='ref-tasks-package'><filename>do_package</filename></link>,
-            <link linkend='ref-tasks-package_write_deb'><filename>do_package_write_*</filename></link>,
-            and
-            <link linkend='ref-tasks-rootfs'><filename>do_rootfs</filename></link>),
-            run under
-            <ulink url='&YOCTO_DOCS_OM_URL;#fakeroot-and-pseudo'>fakeroot</ulink>.
-            <note>
-                <title>Caution</title>
-
-                <para>
-                    When installing files, be careful not to set the owner and
-                    group IDs of the installed files to unintended values.
-                    Some methods of copying files, notably when using the
-                    recursive <filename>cp</filename> command, can preserve the
-                    UID and/or GID of the original file, which is usually not
-                    what you want.
-                    The
-                    <link linkend='insane-host-user-contaminated'><filename>host-user-contaminated</filename></link>
-                    QA check checks for files that probably have the wrong
-                    ownership.
-                </para>
-
-                <para>
-                    Safe methods for installing files include the following:
-                    <itemizedlist>
-                        <listitem><para>
-                            The <filename>install</filename> utility.
-                            This utility is the preferred method.
-                            </para></listitem>
-                        <listitem><para>
-                            The <filename>cp</filename> command with the
-                            "--no-preserve=ownership" option.
-                            </para></listitem>
-                        <listitem><para>
-                            The <filename>tar</filename> command with the
-                            "--no-same-owner" option.
-                            See the <filename>bin_package.bbclass</filename>
-                            file in the <filename>meta/classes</filename>
-                            directory of the
-                            <link linkend='source-directory'>Source Directory</link>
-                            for an example.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </note>
-        </para>
-    </section>
-
-    <section id='ref-tasks-install_ptest_base'>
-        <title><filename>do_install_ptest_base</filename></title>
-
-        <para>
-            Copies the runtime test suite files from the compilation directory
-            to a holding area.
-        </para>
-    </section>
-
-    <section id='ref-tasks-package'>
-        <title><filename>do_package</filename></title>
-
-        <para>
-            Analyzes the content of the holding area
-            <filename>${</filename><link linkend='var-D'><filename>D</filename></link><filename>}</filename>
-            and splits the content into subsets based on available packages
-            and files.
-            This task makes use of the
-            <link linkend='var-PACKAGES'><filename>PACKAGES</filename></link>
-            and
-            <link linkend='var-FILES'><filename>FILES</filename></link>
-            variables.
-        </para>
-
-        <para>
-            The <filename>do_package</filename> task, in conjunction with the
-            <link linkend='ref-tasks-packagedata'><filename>do_packagedata</filename></link>
-            task, also saves some important package metadata.
-            For additional information, see the
-            <link linkend='var-PKGDESTWORK'><filename>PKGDESTWORK</filename></link>
-            variable and the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#automatically-added-runtime-dependencies'>Automatically Added Runtime Dependencies</ulink>"
-            section in the Yocto Project Overview and Concepts Manual.
-        </para>
-    </section>
-
-    <section id='ref-tasks-package_qa'>
-        <title><filename>do_package_qa</filename></title>
-
-        <para>
-            Runs QA checks on packaged files.
-            For more information on these checks, see the
-            <link linkend='ref-classes-insane'><filename>insane</filename></link>
-            class.
-        </para>
-    </section>
-
-    <section id='ref-tasks-package_write_deb'>
-        <title><filename>do_package_write_deb</filename></title>
-
-        <para>
-            Creates Debian packages (i.e. <filename>*.deb</filename> files) and
-            places them in the
-            <filename>${</filename><link linkend='var-DEPLOY_DIR_DEB'><filename>DEPLOY_DIR_DEB</filename></link><filename>}</filename>
-            directory in the package feeds area.
-            For more information, see the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#package-feeds-dev-environment'>Package Feeds</ulink>"
-            section in the Yocto Project Overview and Concepts Manual.
-        </para>
-    </section>
-
-    <section id='ref-tasks-package_write_ipk'>
-        <title><filename>do_package_write_ipk</filename></title>
-
-        <para>
-            Creates IPK packages (i.e. <filename>*.ipk</filename> files) and
-            places them in the
-            <filename>${</filename><link linkend='var-DEPLOY_DIR_IPK'><filename>DEPLOY_DIR_IPK</filename></link><filename>}</filename>
-            directory in the package feeds area.
-            For more information, see the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#package-feeds-dev-environment'>Package Feeds</ulink>"
-            section in the Yocto Project Overview and Concepts Manual.
-        </para>
-    </section>
-
-    <section id='ref-tasks-package_write_rpm'>
-        <title><filename>do_package_write_rpm</filename></title>
-
-        <para>
-            Creates RPM packages (i.e. <filename>*.rpm</filename> files) and
-            places them in the
-            <filename>${</filename><link linkend='var-DEPLOY_DIR_RPM'><filename>DEPLOY_DIR_RPM</filename></link><filename>}</filename>
-            directory in the package feeds area.
-            For more information, see the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#package-feeds-dev-environment'>Package Feeds</ulink>"
-            section in the Yocto Project Overview and Concepts Manual.
-        </para>
-    </section>
-
-    <section id='ref-tasks-package_write_tar'>
-        <title><filename>do_package_write_tar</filename></title>
-
-        <para>
-            Creates tarballs and places them in the
-            <filename>${</filename><link linkend='var-DEPLOY_DIR_TAR'><filename>DEPLOY_DIR_TAR</filename></link><filename>}</filename>
-            directory in the package feeds area.
-            For more information, see the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#package-feeds-dev-environment'>Package Feeds</ulink>"
-            section in the Yocto Project Overview and Concepts Manual.
-        </para>
-    </section>
-
-    <section id='ref-tasks-packagedata'>
-        <title><filename>do_packagedata</filename></title>
-
-        <para>
-            Saves package metadata generated by the
-            <link linkend='ref-tasks-package'><filename>do_package</filename></link>
-            task in
-            <link linkend='var-PKGDATA_DIR'><filename>PKGDATA_DIR</filename></link>
-            to make it available globally.
-        </para>
-    </section>
-
-    <section id='ref-tasks-patch'>
-        <title><filename>do_patch</filename></title>
-
-        <para>
-            Locates patch files and applies them to the source code.
-        </para>
-
-        <para>
-            After fetching and unpacking source files, the build system
-            uses the recipe's
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-            statements to locate and apply patch files to the source code.
-            <note>
-                The build system uses the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILESPATH'><filename>FILESPATH</filename></ulink>
-                variable to determine the default set of directories when
-                searching for patches.
-            </note>
-            Patch files, by default, are <filename>*.patch</filename> and
-            <filename>*.diff</filename> files created and kept in a
-            subdirectory of the directory holding the recipe file.
-            For example, consider the
-            <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta/recipes-connectivity/bluez5'><filename>bluez5</filename></ulink>
-            recipe from the OE-Core layer (i.e.
-            <filename>poky/meta</filename>):
-            <literallayout class='monospaced'>
-     poky/meta/recipes-connectivity/bluez5
-            </literallayout>
-            This recipe has two patch files located here:
-            <literallayout class='monospaced'>
-     poky/meta/recipes-connectivity/bluez5/bluez5
-            </literallayout>
-        </para>
-
-        <para>
-            In the <filename>bluez5</filename> recipe, the
-            <filename>SRC_URI</filename> statements point to the source and
-            patch files needed to build the package.
-            <note>
-                In the case for the <filename>bluez5_5.48.bb</filename>
-                recipe, the <filename>SRC_URI</filename> statements are from an
-                include file <filename>bluez5.inc</filename>.
-            </note>
-        </para>
-
-        <para>
-            As mentioned earlier, the build system treats files whose file
-            types are <filename>.patch</filename> and
-            <filename>.diff</filename> as patch files.
-            However, you can use the "apply=yes" parameter with the
-            <filename>SRC_URI</filename> statement to indicate any file as a
-            patch file:
-            <literallayout class='monospaced'>
-     SRC_URI = " \
-          git://<replaceable>path_to_repo</replaceable>/<replaceable>some_package</replaceable> \
-          file://<replaceable>file</replaceable>;apply=yes \
-     "
-            </literallayout>
-        </para>
-
-        <para>
-            Conversely, if you have a directory full of patch files and you
-            want to exclude some so that the <filename>do_patch</filename>
-            task does not apply them during the patch phase, you can use
-            the "apply=no" parameter with the <filename>SRC_URI</filename>
-            statement:
-            <literallayout class='monospaced'>
-     SRC_URI = " \
-          git://<replaceable>path_to_repo</replaceable>/<replaceable>some_package</replaceable> \
-          file://<replaceable>path_to_lots_of_patch_files</replaceable> \
-          file://<replaceable>path_to_lots_of_patch_files</replaceable>/<replaceable>patch_file5</replaceable>;apply=no \
-     "
-            </literallayout>
-            In the previous example, assuming all the files in the directory
-            holding the patch files end with either <filename>.patch</filename>
-            or <filename>.diff</filename>, every file would be applied as a
-            patch by default except for the
-            <replaceable>patch_file5</replaceable> patch.
-        </para>
-
-        <para>
-            You can find out more about the patching process in the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#patching-dev-environment'>Patching</ulink>"
-            section in the Yocto Project Overview and Concepts Manual and the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#new-recipe-patching-code'>Patching Code</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id='ref-tasks-populate_lic'>
-        <title><filename>do_populate_lic</filename></title>
-
-        <para>
-            Writes license information for the recipe that is collected later
-            when the image is constructed.
-        </para>
-    </section>
-
-    <section id='ref-tasks-populate_sdk'>
-        <title><filename>do_populate_sdk</filename></title>
-
-        <para>
-            Creates the file and directory structure for an installable SDK.
-            See the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#sdk-generation-dev-environment'>SDK Generation</ulink>"
-            section in the Yocto Project Overview and Concepts Manual for more
-            information.
-        </para>
-    </section>
-
-    <section id='ref-tasks-populate_sysroot'>
-        <title><filename>do_populate_sysroot</filename></title>
-
-        <para>
-            Stages (copies) a subset of the files installed by the
-            <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-            task into the appropriate sysroot.
-            For information on how to access these files from other recipes,
-            see the
-            <link linkend='var-STAGING_DIR_HOST'><filename>STAGING_DIR*</filename></link>
-            variables.
-            Directories that would typically not be needed by other recipes at
-            build time (e.g. <filename>/etc</filename>) are not copied by
-            default.
-        </para>
-
-        <para>
-            For information on what directories are copied by default, see the
-            <link linkend='var-SYSROOT_DIRS'><filename>SYSROOT_DIRS*</filename></link>
-            variables.
-            You can change these variables inside your recipe if you need
-            to make additional (or fewer) directories available to other
-            recipes at build time.
-        </para>
-
-        <para>
-            The <filename>do_populate_sysroot</filename> task is a
-            shared state (sstate) task, which means that the task can
-            be accelerated through sstate use.
-            Realize also that if the task is re-executed, any previous output
-            is removed (i.e. "cleaned").
-        </para>
-    </section>
-
-    <section id='ref-tasks-prepare_recipe_sysroot'>
-        <title><filename>do_prepare_recipe_sysroot</filename></title>
-
-        <para>
-            Installs the files into the individual recipe specific sysroots
-            (i.e. <filename>recipe-sysroot</filename> and
-            <filename>recipe-sysroot-native</filename> under
-            <filename>${</filename><link linkend='var-WORKDIR'><filename>WORKDIR</filename></link><filename>}</filename>
-            based upon the dependencies specified by
-            <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>).
-            See the
-            "<link linkend='ref-classes-staging'><filename>staging</filename></link>"
-            class for more information.
-        </para>
-    </section>
-
-    <section id='ref-tasks-rm_work'>
-        <title><filename>do_rm_work</filename></title>
-
-        <para>
-            Removes work files after the OpenEmbedded build system has
-            finished with them.
-            You can learn more by looking at the
-            "<link linkend='ref-classes-rm-work'><filename>rm_work.bbclass</filename></link>"
-            section.
-        </para>
-    </section>
-
-    <section id='ref-tasks-unpack'>
-        <title><filename>do_unpack</filename></title>
-
-        <para>
-            Unpacks the source code into a working directory pointed to
-            by
-            <filename>${</filename><link linkend='var-WORKDIR'><filename>WORKDIR</filename></link><filename>}</filename>.
-            The
-            <link linkend='var-S'><filename>S</filename></link> variable also
-            plays a role in where unpacked source files ultimately reside.
-            For more information on how source files are unpacked, see the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#source-fetching-dev-environment'>Source Fetching</ulink>"
-            section in the Yocto Project Overview and Concepts Manual and also
-            see the <filename>WORKDIR</filename> and
-            <filename>S</filename> variable descriptions.
-        </para>
-    </section>
-</section>
-
-<section id='manually-called-tasks'>
-    <title>Manually Called Tasks</title>
-
-    <para>
-        These tasks are typically manually triggered (e.g. by using the
-        <filename>bitbake -c</filename> command-line option):
-    </para>
-
-    <section id='ref-tasks-checkpkg'>
-        <title><filename>do_checkpkg</filename></title>
-
-        <para>
-            Provides information about the recipe including its upstream
-            version and status.
-            The upstream version and status reveals whether or not a version
-            of the recipe exists upstream and a status of not updated, updated,
-            or unknown.
-        </para>
-
-        <para>
-            To check the upstream version and status of a recipe, use the
-            following devtool commands:
-            <literallayout class='monospaced'>
-     $ devtool latest-version
-     $ devtool check-upgrade-status
-            </literallayout>
-            See the
-            "<link linkend='ref-devtool-reference'><filename>devtool</filename> Quick Reference</link>"
-            chapter for more information on <filename>devtool</filename>.
-            See the
-            "<ulink url='&YOCTO_DOCS_REF_URL;#devtool-checking-on-the-upgrade-status-of-a-recipe'>Checking on the Upgrade Status of a Recipe</ulink>"
-            section for information on checking the upgrade status of a recipe.
-        </para>
-
-        <para>
-            To build the <filename>checkpkg</filename> task, use the
-            <filename>bitbake</filename> command with the "-c" option and
-            task name:
-            <literallayout class='monospaced'>
-     $ bitbake core-image-minimal -c checkpkg
-            </literallayout>
-            By default, the results are stored in
-            <link linkend='var-LOG_DIR'><filename>$LOG_DIR</filename></link>
-            (e.g. <filename>$BUILD_DIR/tmp/log</filename>).
-        </para>
-    </section>
-
-    <section id='ref-tasks-checkuri'>
-        <title><filename>do_checkuri</filename></title>
-
-        <para>
-            Validates the
-            <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>
-            value.
-        </para>
-    </section>
-
-    <section id='ref-tasks-clean'>
-        <title><filename>do_clean</filename></title>
-
-        <para>
-            Removes all output files for a target from the
-            <link linkend='ref-tasks-unpack'><filename>do_unpack</filename></link>
-            task forward (i.e. <filename>do_unpack</filename>,
-            <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>,
-            <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>,
-            <link linkend='ref-tasks-install'><filename>do_install</filename></link>,
-            and
-            <link linkend='ref-tasks-package'><filename>do_package</filename></link>).
-        </para>
-
-        <para>
-            You can run this task using BitBake as follows:
-            <literallayout class='monospaced'>
-     $ bitbake -c clean <replaceable>recipe</replaceable>
-            </literallayout>
-        </para>
-
-        <para>
-            Running this task does not remove the
-            <ulink url='&YOCTO_DOCS_OM_URL;#shared-state-cache'>sstate</ulink>
-            cache files.
-            Consequently, if no changes have been made and the recipe is
-            rebuilt after cleaning, output files are simply restored from the
-            sstate cache.
-            If you want to remove the sstate cache files for the recipe,
-            you need to use the
-            <link linkend='ref-tasks-cleansstate'><filename>do_cleansstate</filename></link>
-            task instead (i.e. <filename>bitbake -c cleansstate</filename> <replaceable>recipe</replaceable>).
-        </para>
-    </section>
-
-    <section id='ref-tasks-cleanall'>
-        <title><filename>do_cleanall</filename></title>
-
-        <para>
-            Removes all output files, shared state
-            (<ulink url='&YOCTO_DOCS_OM_URL;#shared-state-cache'>sstate</ulink>)
-            cache, and downloaded source files for a target (i.e. the contents
-            of
-            <link linkend='var-DL_DIR'><filename>DL_DIR</filename></link>).
-            Essentially, the <filename>do_cleanall</filename> task is
-            identical to the
-            <link linkend='ref-tasks-cleansstate'><filename>do_cleansstate</filename></link>
-            task with the added removal of downloaded source files.
-        </para>
-
-        <para>
-            You can run this task using BitBake as follows:
-            <literallayout class='monospaced'>
-     $ bitbake -c cleanall <replaceable>recipe</replaceable>
-            </literallayout>
-        </para>
-
-        <para>
-            Typically, you would not normally use the
-            <filename>cleanall</filename> task.
-            Do so only if you want to start fresh with the
-            <link linkend='ref-tasks-fetch'><filename>do_fetch</filename></link>
-            task.
-        </para>
-    </section>
-
-    <section id='ref-tasks-cleansstate'>
-        <title><filename>do_cleansstate</filename></title>
-
-        <para>
-            Removes all output files and shared state
-            (<ulink url='&YOCTO_DOCS_OM_URL;#shared-state-cache'>sstate</ulink>)
-            cache for a target.
-            Essentially, the <filename>do_cleansstate</filename> task is
-            identical to the
-            <link linkend='ref-tasks-clean'><filename>do_clean</filename></link>
-            task with the added removal of shared state
-            (<ulink url='&YOCTO_DOCS_OM_URL;#shared-state-cache'>sstate</ulink>)
-            cache.
-        </para>
-
-        <para>
-            You can run this task using BitBake as follows:
-            <literallayout class='monospaced'>
-     $ bitbake -c cleansstate <replaceable>recipe</replaceable>
-            </literallayout>
-        </para>
-
-        <para>
-            When you run the <filename>do_cleansstate</filename> task,
-            the OpenEmbedded build system no longer uses any
-            sstate.
-            Consequently, building the recipe from scratch is guaranteed.
-            <note>
-                The <filename>do_cleansstate</filename> task cannot remove
-                sstate from a remote sstate mirror.
-                If you need to build a target from scratch using remote
-                mirrors, use the "-f" option as follows:
-                <literallayout class='monospaced'>
-     $ bitbake -f -c do_cleansstate <replaceable>target</replaceable>
-                </literallayout>
-            </note>
-        </para>
-     </section>
-
-    <section id='ref-tasks-devpyshell'>
-        <title><filename>do_devpyshell</filename></title>
-
-        <para>
-            Starts a shell in which an interactive Python interpreter allows
-            you to interact with the BitBake build environment.
-            From within this shell, you can directly examine and set
-            bits from the data store and execute functions as if within
-            the BitBake environment.
-            See the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#platdev-appdev-devpyshell'>Using a Development Python Shell</ulink>"
-            section in the Yocto Project Development Tasks Manual for more
-            information about using <filename>devpyshell</filename>.
-        </para>
-    </section>
-
-    <section id='ref-tasks-devshell'>
-        <title><filename>do_devshell</filename></title>
-
-        <para>
-            Starts a shell whose environment is set up for
-            development, debugging, or both.
-            See the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#platdev-appdev-devshell'>Using a Development Shell</ulink>"
-            section in the Yocto Project Development Tasks Manual for more
-            information about using <filename>devshell</filename>.
-        </para>
-    </section>
-
-    <section id='ref-tasks-listtasks'>
-        <title><filename>do_listtasks</filename></title>
-
-        <para>
-            Lists all defined tasks for a target.
-        </para>
-    </section>
-
-    <section id='ref-tasks-package_index'>
-        <title><filename>do_package_index</filename></title>
-
-        <para>
-            Creates or updates the index in the
-            <ulink url='&YOCTO_DOCS_OM_URL;#package-feeds-dev-environment'>Package Feeds</ulink>
-            area.
-            <note>
-                This task is not triggered with the
-                <filename>bitbake -c</filename> command-line option as
-                are the other tasks in this section.
-                Because this task is specifically for the
-                <filename>package-index</filename> recipe,
-                you run it using
-                <filename>bitbake package-index</filename>.
-            </note>
-        </para>
-    </section>
-</section>
-
-<section id='image-related-tasks'>
-    <title>Image-Related Tasks</title>
-
-    <para>
-        The following tasks are applicable to image recipes.
-    </para>
-
-    <section id='ref-tasks-bootimg'>
-        <title><filename>do_bootimg</filename></title>
-
-        <para>
-            Creates a bootable live image.
-            See the
-            <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>
-            variable for additional information on live image types.
-        </para>
-    </section>
-
-    <section id='ref-tasks-bundle_initramfs'>
-        <title><filename>do_bundle_initramfs</filename></title>
-
-        <para>
-            Combines an initial RAM disk (initramfs) image and kernel
-            together to form a single image.
-            The
-            <link linkend='var-CONFIG_INITRAMFS_SOURCE'><filename>CONFIG_INITRAMFS_SOURCE</filename></link>
-            variable has some more information about these types of images.
-        </para>
-    </section>
-
-    <section id='ref-tasks-rootfs'>
-        <title><filename>do_rootfs</filename></title>
-
-        <para>
-            Creates the root filesystem (file and directory structure) for an
-            image.
-            See the
-            "<ulink url='&YOCTO_DOCS_OM_URL;#image-generation-dev-environment'>Image Generation</ulink>"
-            section in the Yocto Project Overview and Concepts Manual for more
-            information on how the root filesystem is created.
-        </para>
-    </section>
-
-    <section id='ref-tasks-testimage'>
-        <title><filename>do_testimage</filename></title>
-
-        <para>
-            Boots an image and performs runtime tests within the image.
-            For information on automatically testing images, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#performing-automated-runtime-testing'>Performing Automated Runtime Testing</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-
-    <section id='ref-tasks-testimage_auto'>
-        <title><filename>do_testimage_auto</filename></title>
-
-        <para>
-            Boots an image and performs runtime tests within the image
-            immediately after it has been built.
-            This task is enabled when you set
-            <link linkend='var-TESTIMAGE_AUTO'><filename>TESTIMAGE_AUTO</filename></link>
-            equal to "1".
-        </para>
-
-        <para>
-            For information on automatically testing images, see the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#performing-automated-runtime-testing'>Performing Automated Runtime Testing</ulink>"
-            section in the Yocto Project Development Tasks Manual.
-        </para>
-    </section>
-</section>
-
-<section id='kernel-related-tasks'>
-    <title>Kernel-Related Tasks</title>
-
-    <para>
-        The following tasks are applicable to kernel recipes.
-        Some of these tasks (e.g. the
-        <link linkend='ref-tasks-menuconfig'><filename>do_menuconfig</filename></link>
-        task) are also applicable to recipes that use
-        Linux kernel style configuration such as the BusyBox recipe.
-    </para>
-
-    <section id='ref-tasks-compile_kernelmodules'>
-        <title><filename>do_compile_kernelmodules</filename></title>
-
-        <para>
-            Runs the step that builds the kernel modules (if needed).
-            Building a kernel consists of two steps: 1) the kernel
-            (<filename>vmlinux</filename>) is built, and 2) the modules
-            are built (i.e. <filename>make modules</filename>).
-        </para>
-    </section>
-
-    <section id='ref-tasks-diffconfig'>
-        <title><filename>do_diffconfig</filename></title>
-
-        <para>
-            When invoked by the user, this task creates a file containing the
-            differences between the original config as produced by
-            <link linkend='ref-tasks-kernel_configme'><filename>do_kernel_configme</filename></link>
-            task and the changes made by the user with other methods
-            (i.e. using
-            (<link linkend='ref-tasks-kernel_menuconfig'><filename>do_kernel_menuconfig</filename></link>).
-            Once the file of differences is created, it can be used to create
-            a config fragment that only contains the differences.
-            You can invoke this task from the command line as follows:
-            <literallayout class='monospaced'>
-     $ bitbake linux-yocto -c diffconfig
-            </literallayout>
-            For more information, see the
-            "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#creating-config-fragments'>Creating Configuration Fragments</ulink>"
-            section in the Yocto Project Linux Kernel Development Manual.
-        </para>
-    </section>
-
-    <section id='ref-tasks-kernel_checkout'>
-        <title><filename>do_kernel_checkout</filename></title>
-
-        <para>
-            Converts the newly unpacked kernel source into a form with which
-            the OpenEmbedded build system can work.
-            Because the kernel source can be fetched in several different ways,
-            the <filename>do_kernel_checkout</filename> task makes sure that
-            subsequent tasks are given a clean working tree copy of the kernel
-            with the correct branches checked out.
-        </para>
-    </section>
-
-    <section id='ref-tasks-kernel_configcheck'>
-        <title><filename>do_kernel_configcheck</filename></title>
-
-        <para>
-            Validates the configuration produced by the
-            <link linkend='ref-tasks-kernel_menuconfig'><filename>do_kernel_menuconfig</filename></link>
-            task.
-            The <filename>do_kernel_configcheck</filename> task produces
-            warnings when a requested configuration does not appear in the
-            final <filename>.config</filename> file or when you override a
-            policy configuration in a hardware configuration fragment.
-            You can run this task explicitly and view the output by using
-            the following command:
-            <literallayout class='monospaced'>
-     $ bitbake linux-yocto -c kernel_configcheck -f
-            </literallayout>
-            For more information, see the
-            "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#validating-configuration'>Validating Configuration</ulink>"
-            section in the Yocto Project Linux Kernel Development Manual.
-        </para>
-    </section>
-
-    <section id='ref-tasks-kernel_configme'>
-        <title><filename>do_kernel_configme</filename></title>
-
-        <para>
-            After the kernel is patched by the
-            <link linkend='ref-tasks-patch'><filename>do_patch</filename></link>
-            task, the <filename>do_kernel_configme</filename> task assembles
-            and merges all the kernel config fragments into a merged
-            configuration that can then be passed to the kernel configuration
-            phase proper.
-            This is also the time during which user-specified defconfigs
-            are applied if present, and where configuration modes such as
-            <filename>--allnoconfig</filename> are applied.
-        </para>
-    </section>
-
-    <section id='ref-tasks-kernel_menuconfig'>
-        <title><filename>do_kernel_menuconfig</filename></title>
-
-        <para>
-            Invoked by the user to manipulate the
-            <filename>.config</filename> file used to build a linux-yocto
-            recipe.
-            This task starts the Linux kernel configuration tool, which you
-            then use to modify the kernel configuration.
-            <note>
-                You can also invoke this tool from the command line as
-                follows:
-                <literallayout class='monospaced'>
-     $ bitbake linux-yocto -c menuconfig
-                </literallayout>
-            </note>
-            See the
-            "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#using-menuconfig'>Using <filename>menuconfig</filename></ulink>"
-            section in the Yocto Project Linux Kernel Development Manual
-            for more information on this configuration tool.
-        </para>
-    </section>
-
-    <section id='ref-tasks-kernel_metadata'>
-        <title><filename>do_kernel_metadata</filename></title>
-
-        <para>
-            Collects all the features required for a given kernel build,
-            whether the features come from
-            <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>
-            or from Git repositories.
-            After collection, the <filename>do_kernel_metadata</filename> task
-            processes the features into a series of config fragments and
-            patches, which can then be applied by subsequent tasks such as
-            <link linkend='ref-tasks-patch'><filename>do_patch</filename></link>
-            and
-            <link linkend='ref-tasks-kernel_configme'><filename>do_kernel_configme</filename></link>.
-        </para>
-    </section>
-
-    <section id='ref-tasks-menuconfig'>
-        <title><filename>do_menuconfig</filename></title>
-
-        <para>
-            Runs <filename>make menuconfig</filename> for the kernel.
-            For information on <filename>menuconfig</filename>, see the
-            "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#using-menuconfig'>Using&nbsp;&nbsp;<filename>menuconfig</filename></ulink>"
-            section in the Yocto Project Linux Kernel Development Manual.
-        </para>
-    </section>
-
-    <section id='ref-tasks-savedefconfig'>
-        <title><filename>do_savedefconfig</filename></title>
-
-        <para>
-            When invoked by the user, creates a defconfig file that can be
-            used instead of the default defconfig.
-            The saved defconfig contains the differences between the default
-            defconfig and the changes made by the user using other methods
-            (i.e. the
-            <link linkend='ref-tasks-kernel_menuconfig'><filename>do_kernel_menuconfig</filename></link>
-            task.
-            You can invoke the task using the following command:
-            <literallayout class='monospaced'>
-     $ bitbake linux-yocto -c savedefconfig
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='ref-tasks-shared_workdir'>
-        <title><filename>do_shared_workdir</filename></title>
-
-        <para>
-            After the kernel has been compiled but before the kernel modules
-            have been compiled, this task copies files required for module
-            builds and which are generated from the  kernel build into the
-            shared work directory.
-            With these copies successfully copied, the
-            <link linkend='ref-tasks-compile_kernelmodules'><filename>do_compile_kernelmodules</filename></link>
-            task can successfully build the kernel modules in the next step
-            of the build.
-        </para>
-    </section>
-
-    <section id='ref-tasks-sizecheck'>
-        <title><filename>do_sizecheck</filename></title>
-
-        <para>
-            After the kernel has been built, this task checks the size of the
-            stripped kernel image against
-            <link linkend='var-KERNEL_IMAGE_MAXSIZE'><filename>KERNEL_IMAGE_MAXSIZE</filename></link>.
-            If that variable was set and the size of the stripped kernel
-            exceeds that size, the kernel build produces a warning to that
-            effect.
-        </para>
-    </section>
-
-    <section id='ref-tasks-strip'>
-        <title><filename>do_strip</filename></title>
-
-        <para>
-            If
-            <filename>KERNEL_IMAGE_STRIP_EXTRA_SECTIONS</filename> is defined,
-            this task strips the sections named in that variable from
-            <filename>vmlinux</filename>.
-            This stripping is typically used to remove nonessential sections
-            such as <filename>.comment</filename> sections from a
-            size-sensitive configuration.
-        </para>
-    </section>
-
-    <section id='ref-tasks-validate_branches'>
-        <title><filename>do_validate_branches</filename></title>
-
-        <para>
-            After the kernel is unpacked but before it is patched, this task
-            makes sure that the machine and metadata branches as specified
-            by the <link linkend='var-SRCREV'><filename>SRCREV</filename></link>
-            variables actually exist on the specified branches.
-            If these branches do not exist and
-            <link linkend='var-AUTOREV'><filename>AUTOREV</filename></link>
-            is not being used, the <filename>do_validate_branches</filename>
-            task fails during the build.
-        </para>
-    </section>
-</section>
-
-<section id='miscellaneous-tasks'>
-    <title>Miscellaneous Tasks</title>
-
-    <para>
-        The following sections describe miscellaneous tasks.
-    </para>
-
-    <section id='ref-tasks-spdx'>
-        <title><filename>do_spdx</filename></title>
-
-        <para>
-            A build stage that takes the source code and scans it on a remote
-            FOSSOLOGY server in order to produce an SPDX document.
-            This task applies only to the
-            <link linkend='ref-classes-spdx'><filename>spdx</filename></link>
-            class.
-        </para>
-    </section>
-</section>
-
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/ref-manual/ref-terms.rst b/poky/documentation/ref-manual/ref-terms.rst
index 600cc23..556bc6b 100644
--- a/poky/documentation/ref-manual/ref-terms.rst
+++ b/poky/documentation/ref-manual/ref-terms.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *******************
 Yocto Project Terms
diff --git a/poky/documentation/ref-manual/ref-terms.xml b/poky/documentation/ref-manual/ref-terms.xml
deleted file mode 100644
index 2a0452b..0000000
--- a/poky/documentation/ref-manual/ref-terms.xml
+++ /dev/null
@@ -1,525 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='ref-terms'>
-<title>Yocto Project Terms</title>
-
-    <para>
-        Following is a list of terms and definitions users new to the Yocto
-        Project development environment might find helpful.
-        While some of these terms are universal, the list includes them
-        just in case:
-        <itemizedlist>
-            <listitem><para>
-                <emphasis>Append Files:</emphasis>
-                Files that append build information to a recipe file.
-                Append files are known as BitBake append files and
-                <filename>.bbappend</filename> files.
-                The OpenEmbedded build system expects every append file to have
-                a corresponding recipe (<filename>.bb</filename>) file.
-                Furthermore, the append file and corresponding recipe file
-                must use the same root filename.
-                The filenames can differ only in the file type suffix used
-                (e.g.
-                <filename>formfactor_0.0.bb</filename> and
-                <filename>formfactor_0.0.bbappend</filename>).</para>
-
-                <para>Information in append files extends or overrides the
-                information in the similarly-named recipe file.
-                For an example of an append file in use, see the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#using-bbappend-files'>Using .bbappend Files in Your Layer</ulink>"
-                section in the Yocto Project Development Tasks Manual.</para>
-
-                <para>When you name an append file, you can use the
-                "<filename>%</filename>" wildcard character to allow for
-                matching recipe names.
-                For example, suppose you have an append file named as follows:
-                <literallayout class='monospaced'>
-     busybox_1.21.%.bbappend
-                </literallayout>
-                That append file would match any
-                <filename>busybox_1.21.</filename><replaceable>x</replaceable><filename>.bb</filename>
-                version of the recipe.
-                So, the append file would match any of the following recipe names:
-                <literallayout class='monospaced'>
-     busybox_1.21.1.bb
-     busybox_1.21.2.bb
-     busybox_1.21.3.bb
-     busybox_1.21.10.bb
-     busybox_1.21.25.bb
-                </literallayout>
-                <note><title>Important</title>
-                    The use of the "<filename>%</filename>" character
-                    is limited in that it only works directly in front of the
-                    <filename>.bbappend</filename> portion of the append file's
-                    name.
-                    You cannot use the wildcard character in any other
-                    location of the name.
-                </note>
-                </para></listitem>
-            <listitem><para id='bitbake-term'>
-                <emphasis>BitBake:</emphasis>
-                The task executor and scheduler used by the OpenEmbedded build
-                system to build images.
-                For more information on BitBake, see the
-                <ulink url='&YOCTO_DOCS_BB_URL;'>BitBake User Manual</ulink>.
-                </para></listitem>
-            <listitem><para id='board-support-package-bsp-term'>
-                <emphasis>Board Support Package (BSP):</emphasis>
-                A group of drivers, definitions, and other components that
-                provide support for a specific hardware configuration.
-                For more information on BSPs, see the
-                <ulink url='&YOCTO_DOCS_BSP_URL;'>Yocto Project Board Support Package (BSP) Developer's Guide</ulink>.
-                </para></listitem>
-            <listitem>
-                <para id='build-directory'>
-                <emphasis>Build Directory:</emphasis>
-                This term refers to the area used by the OpenEmbedded build
-                system for builds.
-                The area is created when you <filename>source</filename> the
-                setup environment script that is found in the Source Directory
-                (i.e. <link linkend='structure-core-script'><filename>&OE_INIT_FILE;</filename></link>).
-                The
-                <link linkend='var-TOPDIR'><filename>TOPDIR</filename></link>
-                variable points to the Build Directory.</para>
-
-                <para>You have a lot of flexibility when creating the Build
-                Directory.
-                Following are some examples that show how to create the
-                directory.
-                The examples assume your
-                <link linkend='source-directory'>Source Directory</link> is
-                named <filename>poky</filename>:
-                <itemizedlist>
-                    <listitem><para>Create the Build Directory inside your
-                        Source Directory and let the name of the Build
-                        Directory default to <filename>build</filename>:
-                        <literallayout class='monospaced'>
-     $ cd $HOME/poky
-     $ source &OE_INIT_FILE;
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>Create the Build Directory inside your
-                        home directory and specifically name it
-                        <filename>test-builds</filename>:
-                        <literallayout class='monospaced'>
-     $ cd $HOME
-     $ source poky/&OE_INIT_FILE; test-builds
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        Provide a directory path and specifically name the
-                        Build Directory.
-                        Any intermediate folders in the pathname must exist.
-                        This next example creates a Build Directory named
-                        <filename>YP-&POKYVERSION;</filename>
-                        in your home directory within the existing
-                        directory <filename>mybuilds</filename>:
-                        <literallayout class='monospaced'>
-     $ cd $HOME
-     $ source $HOME/poky/&OE_INIT_FILE; $HOME/mybuilds/YP-&POKYVERSION;
-                        </literallayout>
-                        </para></listitem>
-                </itemizedlist>
-                <note>
-                    By default, the Build Directory contains
-                    <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>,
-                    which is a temporary directory the build system uses for
-                    its work.
-                    <filename>TMPDIR</filename> cannot be under NFS.
-                    Thus, by default, the Build Directory cannot be under NFS.
-                    However, if you need the Build Directory to be under NFS,
-                    you can set this up by setting <filename>TMPDIR</filename>
-                    in your <filename>local.conf</filename> file
-                    to use a local drive.
-                    Doing so effectively separates <filename>TMPDIR</filename>
-                    from <filename>TOPDIR</filename>, which is the Build
-                    Directory.
-                </note>
-                </para></listitem>
-            <listitem><para id='hardware-build-system-term'>
-                <emphasis>Build Host:</emphasis>
-                The system used to build images in a Yocto Project
-                Development environment.
-                The build system is sometimes referred to as the
-                <firstterm>development host</firstterm>.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Classes:</emphasis>
-                Files that provide for logic encapsulation and inheritance so
-                that commonly used patterns can be defined once and then
-                easily used in multiple recipes.
-                For reference information on the Yocto Project classes, see the
-                "<link linkend='ref-classes'>Classes</link>" chapter.
-                Class files end with the <filename>.bbclass</filename>
-                filename extension.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Configuration File:</emphasis>
-                Files that hold global definitions of variables,
-                user-defined variables, and hardware configuration
-                information.
-                These files tell the OpenEmbedded build system what to
-                build and what to put into the image to support a
-                particular platform.</para>
-
-                <para>Configuration files end with a <filename>.conf</filename>
-                filename extension.
-                The <filename>conf/local.conf</filename> configuration file in
-                the
-                <link linkend='build-directory'>Build Directory</link>
-                contains user-defined variables that affect every build.
-                The <filename>meta-poky/conf/distro/poky.conf</filename>
-                configuration file defines Yocto "distro" configuration
-                variables used only when building with this policy.
-                Machine configuration files, which
-                are located throughout the
-                <link linkend='source-directory'>Source Directory</link>, define
-                variables for specific hardware and are only used when building
-                for that target (e.g. the
-                <filename>machine/beaglebone.conf</filename> configuration
-                file defines variables for the Texas Instruments ARM Cortex-A8
-                development board).
-                </para></listitem>
-            <listitem><para id='term-container-layer'>
-                <emphasis>Container Layer:</emphasis>
-                Layers that hold other layers.
-                An example of a container layer is OpenEmbedded's
-                <ulink url='https://github.com/openembedded/meta-openembedded'><filename>meta-openembedded</filename></ulink>
-                layer.
-                The <filename>meta-openembedded</filename> layer contains
-                many <filename>meta-*</filename> layers.
-                </para></listitem>
-            <listitem><para id='cross-development-toolchain'>
-                <emphasis>Cross-Development Toolchain:</emphasis>
-                In general, a cross-development toolchain is a collection of
-                software development tools and utilities that run on one
-                architecture and allow you to develop software for a
-                different, or targeted, architecture.
-                These toolchains contain cross-compilers, linkers, and
-                debuggers that are specific to the target architecture.</para>
-
-                <para>The Yocto Project supports two different cross-development
-                toolchains:
-                <itemizedlist>
-                    <listitem><para>
-                        A toolchain only used by and within
-                        BitBake when building an image for a target
-                        architecture.
-                        </para></listitem>
-                    <listitem><para>A relocatable toolchain used outside of
-                        BitBake by developers when developing applications
-                        that will run on a targeted device.
-                        </para></listitem>
-                </itemizedlist></para>
-
-                <para>Creation of these toolchains is simple and automated.
-                For information on toolchain concepts as they apply to the
-                Yocto Project, see the
-                "<ulink url='&YOCTO_DOCS_OM_URL;#cross-development-toolchain-generation'>Cross-Development Toolchain Generation</ulink>"
-                section in the Yocto Project Overview and Concepts Manual.
-                You can also find more information on using the
-                relocatable toolchain in the
-                <ulink url='&YOCTO_DOCS_SDK_URL;'>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</ulink>
-                manual.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Extensible Software Development Kit (eSDK):</emphasis>
-                A custom SDK for application developers.
-                This eSDK allows developers to incorporate their library
-                and programming changes back into the image to make
-                their code available to other application developers.</para>
-
-                <para>For information on the eSDK, see the
-                <ulink url='&YOCTO_DOCS_SDK_URL;'>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</ulink>
-                manual.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Image:</emphasis>
-                An image is an artifact of the BitBake build process given
-                a collection of recipes and related Metadata.
-                Images are the binary output that run on specific hardware or
-                QEMU and are used for specific use-cases.
-                For a list of the supported image types that the Yocto Project
-                provides, see the
-                "<link linkend='ref-images'>Images</link>"
-                chapter.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Layer:</emphasis>
-                A collection of related recipes.
-                Layers allow you to consolidate related metadata to
-                customize your build.
-                Layers also isolate information used when building
-                for multiple architectures.
-                Layers are hierarchical in their ability to override
-                previous specifications.
-                You can include any number of available layers from the
-                Yocto Project and customize the build by adding your
-                layers after them.
-                You can search the Layer Index for layers used within
-                Yocto Project.</para>
-
-                <para>For introductory information on layers, see the
-                "<ulink url='&YOCTO_DOCS_OM_URL;#the-yocto-project-layer-model'>The Yocto Project Layer Model</ulink>"
-                section in the Yocto Project Overview and Concepts Manual.
-                For more detailed information on layers, see the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and Creating Layers</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-                For a discussion specifically on BSP Layers, see the
-                "<ulink url='&YOCTO_DOCS_BSP_URL;#bsp-layers'>BSP Layers</ulink>"
-                section in the Yocto Project Board Support Packages (BSP)
-                Developer's Guide.
-                </para></listitem>
-            <listitem><para id='metadata'>
-                <emphasis>Metadata:</emphasis>
-                A key element of the Yocto Project is the Metadata that
-                is used to construct a Linux distribution and is contained
-                in the files that the
-                <link linkend='build-system-term'>OpenEmbedded build system</link>
-                parses when building an image.
-                In general, Metadata includes recipes, configuration
-                files, and other information that refers to the build
-                instructions themselves, as well as the data used to
-                control what things get built and the effects of the
-                build.
-                Metadata also includes commands and data used to
-                indicate what versions of software are used, from
-                where they are obtained, and changes or additions to the
-                software itself (patches or auxiliary files) that
-                are used to fix bugs or customize the software for use
-                in a particular situation.
-                OpenEmbedded-Core is an important set of validated
-                metadata.</para>
-
-                <para>In the context of the kernel ("kernel Metadata"), the
-                term refers to the kernel config fragments and features
-                contained in the
-                <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/yocto-kernel-cache'><filename>yocto-kernel-cache</filename></ulink>
-                Git repository.
-                </para></listitem>
-            <listitem><para id='oe-core'>
-                <emphasis>OpenEmbedded-Core (OE-Core):</emphasis>
-                OE-Core is metadata comprised of foundational recipes,
-                classes, and associated files that are meant to be
-                common among many different OpenEmbedded-derived systems,
-                including the Yocto Project.
-                OE-Core is a curated subset of an original repository
-                developed by the OpenEmbedded community that has been
-                pared down into a smaller, core set of continuously
-                validated recipes.
-                The result is a tightly controlled and an quality-assured
-                core set of recipes.</para>
-
-                <para>You can see the Metadata in the
-                <filename>meta</filename> directory of the Yocto Project
-                <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi'>Source Repositories</ulink>.
-                </para></listitem>
-            <listitem><para id='build-system-term'>
-                <emphasis>OpenEmbedded Build System:</emphasis>
-                The build system specific to the Yocto Project.
-                The OpenEmbedded build system is based on another project known
-                as "Poky", which uses
-                <link linkend='bitbake-term'>BitBake</link> as the task
-                executor.
-                Throughout the Yocto Project documentation set, the
-                OpenEmbedded build system is sometimes referred to simply
-                as "the build system".
-                If other build systems, such as a host or target build system
-                are referenced, the documentation clearly states the
-                difference.
-                <note>
-                    For some historical information about Poky, see the
-                    <link linkend='poky'>Poky</link> term.
-                </note>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Package:</emphasis>
-                In the context of the Yocto Project, this term refers to a
-                recipe's packaged output produced by BitBake (i.e. a
-                "baked recipe").
-                A package is generally the compiled binaries produced from the
-                recipe's sources.
-                You "bake" something by running it through BitBake.</para>
-
-                <para>It is worth noting that the term "package" can,
-                in general, have subtle meanings.
-                For example, the packages referred to in the
-                "<link linkend='required-packages-for-the-build-host'>Required Packages for the Build Host</link>"
-                section are compiled binaries that, when installed, add
-                functionality to your Linux distribution.</para>
-
-                <para>Another point worth noting is that historically within
-                the Yocto Project, recipes were referred to as packages - thus,
-                the existence of several BitBake variables that are seemingly
-                mis-named,
-                (e.g. <link linkend='var-PR'><filename>PR</filename></link>,
-                <link linkend='var-PV'><filename>PV</filename></link>, and
-                <link linkend='var-PE'><filename>PE</filename></link>).
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Package Groups:</emphasis>
-                Arbitrary groups of software Recipes.
-                You use package groups to hold recipes that, when built,
-                usually accomplish a single task.
-                For example, a package group could contain the recipes for a
-                company's proprietary or value-add software.
-                Or, the package group could contain the recipes that enable
-                graphics.
-                A package group is really just another recipe.
-                Because package group files are recipes, they end with the
-                <filename>.bb</filename> filename extension.
-                </para></listitem>
-            <listitem><para id='poky'>
-                <emphasis>Poky:</emphasis>
-                Poky, which is pronounced <emphasis>Pock</emphasis>-ee,
-                is a reference embedded distribution and a reference
-                test configuration.
-                Poky provides the following:
-                <itemizedlist>
-                    <listitem><para>
-                        A base-level functional distro used to illustrate
-                        how to customize a distribution.
-                        </para></listitem>
-                    <listitem><para>
-                        A means by which to test the Yocto Project
-                        components (i.e. Poky is used to validate
-                        the Yocto Project).
-                        </para></listitem>
-                    <listitem><para>
-                        A vehicle through which you can download
-                        the Yocto Project.
-                        </para></listitem>
-                </itemizedlist>
-                Poky is not a product level distro.
-                Rather, it is a good starting point for customization.
-                <note>
-                    Poky began as an open-source
-                    project initially developed by OpenedHand.
-                    OpenedHand developed Poky from the existing
-                    OpenEmbedded build system to create a commercially
-                    supportable build system for embedded Linux.
-                    After Intel Corporation acquired OpenedHand, the
-                    poky project became the basis for the Yocto Project's
-                    build system.
-                </note>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Recipe:</emphasis>
-                A set of instructions for building packages.
-                A recipe describes where you get source code, which patches
-                to apply, how to configure the source, how to compile it and so on.
-                Recipes also describe dependencies for libraries or for other
-                recipes.
-                Recipes represent the logical unit of execution, the software
-                to build, the images to build, and use the
-                <filename>.bb</filename> file extension.
-                </para></listitem>
-            <listitem><para id='reference-kit-term'>
-                <emphasis>Reference Kit:</emphasis>
-                A working example of a system, which includes a
-                <link linkend='board-support-package-bsp-term'>BSP</link>
-                as well as a
-                <link linkend='hardware-build-system-term'>build host</link>
-                and other components, that can work on specific hardware.
-                </para></listitem>
-            <listitem>
-                <para id='source-directory'>
-                <emphasis>Source Directory:</emphasis>
-                This term refers to the directory structure created as a result
-                of creating a local copy of the <filename>poky</filename> Git
-                repository <filename>git://git.yoctoproject.org/poky</filename>
-                or expanding a released <filename>poky</filename> tarball.
-                <note>
-                    Creating a local copy of the <filename>poky</filename>
-                    Git repository is the recommended method for setting up
-                    your Source Directory.
-                </note>
-                Sometimes you might hear the term "poky directory" used to refer
-                to this directory structure.
-                <note>
-                    The OpenEmbedded build system does not support file or
-                    directory names that contain spaces.
-                    Be sure that the Source Directory you use does not contain
-                    these types of names.
-                </note></para>
-
-                <para>The Source Directory contains BitBake, Documentation,
-                Metadata and other files that all support the Yocto Project.
-                Consequently, you must have the Source Directory in place on
-                your development system in order to do any development using
-                the Yocto Project.</para>
-
-                <para>When you create a local copy of the Git repository, you
-                can name the repository anything you like.
-                Throughout much of the documentation, "poky"
-                is used as the name of the top-level folder of the local copy of
-                the poky Git repository.
-                So, for example, cloning the <filename>poky</filename> Git
-                repository results in a local Git repository whose top-level
-                folder is also named "poky".</para>
-
-                <para>While it is not recommended that you use tarball expansion
-                to set up the Source Directory, if you do, the top-level
-                directory name of the Source Directory is derived from the
-                Yocto Project release tarball.
-                For example, downloading and unpacking
-                <filename>&YOCTO_POKY_TARBALL;</filename> results in a
-                Source Directory whose root folder is named
-                <filename>&YOCTO_POKY;</filename>.</para>
-
-                <para>It is important to understand the differences between the
-                Source Directory created by unpacking a released tarball as
-                compared to cloning
-                <filename>git://git.yoctoproject.org/poky</filename>.
-                When you unpack a tarball, you have an exact copy of the files
-                based on the time of release - a fixed release point.
-                Any changes you make to your local files in the Source Directory
-                are on top of the release and will remain local only.
-                On the other hand, when you clone the <filename>poky</filename>
-                Git repository, you have an active development repository with
-                access to the upstream repository's branches and tags.
-                In this case, any local changes you make to the local
-                Source Directory can be later applied to active development
-                branches of the upstream <filename>poky</filename> Git
-                repository.</para>
-
-                <para>For more information on concepts related to Git
-                repositories, branches, and tags, see the
-                "<ulink url='&YOCTO_DOCS_OM_URL;#repositories-tags-and-branches'>Repositories, Tags, and Branches</ulink>"
-                section in the Yocto Project Overview and Concepts Manual.
-                </para></listitem>
-            <listitem><para><emphasis>Task:</emphasis>
-                A unit of execution for BitBake (e.g.
-                <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>,
-                <link linkend='ref-tasks-fetch'><filename>do_fetch</filename></link>,
-                <link linkend='ref-tasks-patch'><filename>do_patch</filename></link>,
-                and so forth).
-                </para></listitem>
-            <listitem><para id='toaster-term'><emphasis>Toaster:</emphasis>
-                A web interface to the Yocto Project's
-                <link linkend='build-system-term'>OpenEmbedded Build System</link>.
-                The interface enables you to configure and run your builds.
-                Information about builds is collected and stored in a database.
-                For information on Toaster, see the
-                <ulink url='&YOCTO_DOCS_TOAST_URL;'>Toaster User Manual</ulink>.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Upstream:</emphasis>
-                A reference to source code or repositories
-                that are not local to the development system but located in a
-                master area that is controlled by the maintainer of the source
-                code.
-                For example, in order for a developer to work on a particular
-                piece of code, they need to first get a copy of it from an
-                "upstream" source.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/ref-manual/ref-variables.rst b/poky/documentation/ref-manual/ref-variables.rst
index 2d6719d..316e8aa 100644
--- a/poky/documentation/ref-manual/ref-variables.rst
+++ b/poky/documentation/ref-manual/ref-variables.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ******************
 Variables Glossary
@@ -7,18 +7,18 @@
 This chapter lists common variables used in the OpenEmbedded build
 system and gives an overview of their function and contents.
 
-`A <#var-ABIEXTENSION>`__ :term:`B` `C <#var-CACHE>`__
-:term:`D` `E <#var-EFI_PROVIDER>`__ `F <#var-FEATURE_PACKAGES>`__
-`G <#var-GCCPIE>`__ `H <#var-HOMEPAGE>`__ `I <#var-ICECC_DISABLED>`__
-`K <#var-KARCH>`__ `L <#var-LABELS>`__ `M <#var-MACHINE>`__
-`N <#var-NATIVELSBSTRING>`__ `O <#var-OBJCOPY>`__ :term:`P`
-`R <#var-RANLIB>`__ :term:`S` :term:`T`
-`U <#var-UBOOT_CONFIG>`__ `V <#var-VOLATILE_LOG_DIR>`__
-`W <#var-WARN_QA>`__ `X <#var-XSERVER>`__
+:term:`A <ABIEXTENSION>` :term:`B` :term:`C <CACHE>`
+:term:`D` :term:`E <EFI_PROVIDER>` :term:`F <FEATURE_PACKAGES>`
+:term:`G <GCCPIE>` :term:`H <HOMEPAGE>` :term:`I <ICECC_DISABLED>`
+:term:`K <KARCH>` :term:`L <LABELS>` :term:`M <MACHINE>`
+:term:`N <NATIVELSBSTRING>` :term:`O <OBJCOPY>` :term:`P`
+:term:`R <RANLIB>` :term:`S` :term:`T`
+:term:`U <UBOOT_CONFIG>` :term:`V <VOLATILE_LOG_DIR>`
+:term:`W <WARN_QA>` :term:`X <XSERVER>`
 
 .. glossary::
 
-   ABIEXTENSION
+   :term:`ABIEXTENSION`
       Extension to the Application Binary Interface (ABI) field of the GNU
       canonical architecture name (e.g. "eabi").
 
@@ -29,7 +29,7 @@
 
          ABIEXTENSION = "eabi"
 
-   ALLOW_EMPTY
+   :term:`ALLOW_EMPTY`
       Specifies whether to produce an output package even if it is empty.
       By default, BitBake does not produce empty packages. This default
       behavior can cause issues when there is an
@@ -44,7 +44,7 @@
          ALLOW_EMPTY_${PN}-dev = "1"
          ALLOW_EMPTY_${PN}-staticdev = "1"
 
-   ALTERNATIVE
+   :term:`ALTERNATIVE`
       Lists commands in a package that need an alternative binary naming
       scheme. Sometimes the same command is provided in multiple packages.
       When this occurs, the OpenEmbedded build system needs to use the
@@ -63,7 +63,7 @@
       ":ref:`update-alternatives.bbclass <ref-classes-update-alternatives>`"
       section.
 
-   ALTERNATIVE_LINK_NAME
+   :term:`ALTERNATIVE_LINK_NAME`
       Used by the alternatives system to map duplicated commands to actual
       locations. For example, if the ``bracket`` command provided by the
       ``busybox`` package is duplicated through another package, you must
@@ -84,7 +84,7 @@
       ":ref:`update-alternatives.bbclass <ref-classes-update-alternatives>`"
       section.
 
-   ALTERNATIVE_PRIORITY
+   :term:`ALTERNATIVE_PRIORITY`
       Used by the alternatives system to create default priorities for
       duplicated commands. You can use the variable to create a single
       default regardless of the command name or package, a default for
@@ -101,7 +101,7 @@
       ":ref:`update-alternatives.bbclass <ref-classes-update-alternatives>`"
       section.
 
-   ALTERNATIVE_TARGET
+   :term:`ALTERNATIVE_TARGET`
       Used by the alternatives system to create default link locations for
       duplicated commands. You can use the variable to create a single
       default location for all duplicated commands regardless of the
@@ -132,17 +132,17 @@
       ":ref:`update-alternatives.bbclass <ref-classes-update-alternatives>`"
       section.
 
-   APPEND
+   :term:`APPEND`
       An override list of append strings for each target specified with
       :term:`LABELS`.
 
       See the :ref:`grub-efi <ref-classes-grub-efi>` class for more
       information on how this variable is used.
 
-   AR
+   :term:`AR`
       The minimal command and arguments used to run ``ar``.
 
-   ARCHIVER_MODE
+   :term:`ARCHIVER_MODE`
       When used with the :ref:`archiver <ref-classes-archiver>` class,
       determines the type of information used to create a released archive.
       You can use this variable to create archives of patched source,
@@ -162,10 +162,10 @@
       For information on how the variable works, see the
       ``meta/classes/archiver.bbclass`` file in the :term:`Source Directory`.
 
-   AS
+   :term:`AS`
       Minimal command and arguments needed to run the assembler.
 
-   ASSUME_PROVIDED
+   :term:`ASSUME_PROVIDED`
       Lists recipe names (:term:`PN` values) BitBake does not
       attempt to build. Instead, BitBake assumes these recipes have already
       been built.
@@ -175,7 +175,7 @@
       when specified, allows for the Git binary from the host to be used
       rather than building ``git-native``.
 
-   ASSUME_SHLIBS
+   :term:`ASSUME_SHLIBS`
       Provides additional ``shlibs`` provider mapping information, which
       adds to or overwrites the information provided automatically by the
       system. Separate multiple entries using spaces.
@@ -192,11 +192,11 @@
 
          ASSUME_SHLIBS = "libEGL.so.1:libegl-implementation"
 
-   AUTHOR
+   :term:`AUTHOR`
       The email address used to contact the original author or authors in
       order to send patches and forward bugs.
 
-   AUTO_LIBNAME_PKGS
+   :term:`AUTO_LIBNAME_PKGS`
       When the :ref:`debian <ref-classes-debian>` class is inherited,
       which is the default behavior, ``AUTO_LIBNAME_PKGS`` specifies which
       packages should be checked for libraries and renamed according to
@@ -205,12 +205,12 @@
       The default value is "${PACKAGES}", which causes the debian class to
       act on all packages that are explicitly generated by the recipe.
 
-   AUTO_SYSLINUXMENU
+   :term:`AUTO_SYSLINUXMENU`
       Enables creating an automatic menu for the syslinux bootloader. You
       must set this variable in your recipe. The
       :ref:`syslinux <ref-classes-syslinux>` class checks this variable.
 
-   AUTOREV
+   :term:`AUTOREV`
       When ``SRCREV`` is set to the value of this variable, it specifies to
       use the latest source revision in the repository. Here is an example:
       ::
@@ -230,7 +230,7 @@
       ":ref:`dev-manual/dev-manual-common-tasks:automatically incrementing a package version number`"
       section in the Yocto Project Development Tasks Manual.
 
-   AVAILABLE_LICENSES
+   :term:`AVAILABLE_LICENSES`
       List of licenses found in the directories specified by
       :term:`COMMON_LICENSE_DIR` and
       :term:`LICENSE_PATH`.
@@ -247,7 +247,7 @@
          license.bbclass
          ).
 
-   AVAILTUNES
+   :term:`AVAILTUNES`
       The list of defined CPU and Application Binary Interface (ABI)
       tunings (i.e. "tunes") available for use by the OpenEmbedded build
       system.
@@ -264,7 +264,7 @@
       ":ref:`Basic Syntax <bitbake:bitbake-user-manual/bitbake-user-manual-metadata:basic syntax>`" section in the BitBake
       User Manual for more information.
 
-   B
+   :term:`B`
       The directory within the :term:`Build Directory` in
       which the OpenEmbedded build system places generated objects during a
       recipe's build process. By default, this directory is the same as the
@@ -278,7 +278,7 @@
       separating these directories. The build system defaults to using
       separate directories for ``gcc`` and some kernel recipes.
 
-   BAD_RECOMMENDATIONS
+   :term:`BAD_RECOMMENDATIONS`
       Lists "recommended-only" packages to not install. Recommended-only
       packages are packages installed only through the
       :term:`RRECOMMENDS` variable. You can prevent any
@@ -308,7 +308,7 @@
       :term:`PACKAGE_EXCLUDE` variables for related
       information.
 
-   BASE_LIB
+   :term:`BASE_LIB`
       The library directory name for the CPU or Application Binary
       Interface (ABI) tune. The ``BASE_LIB`` applies only in the Multilib
       context. See the ":ref:`dev-manual/dev-manual-common-tasks:combining multiple versions of library files into one image`"
@@ -319,11 +319,11 @@
       the :term:`Source Directory`. If Multilib is not
       being used, the value defaults to "lib".
 
-   BASE_WORKDIR
+   :term:`BASE_WORKDIR`
       Points to the base of the work directory for all recipes. The default
       value is "${TMPDIR}/work".
 
-   BB_ALLOWED_NETWORKS
+   :term:`BB_ALLOWED_NETWORKS`
       Specifies a space-delimited list of hosts that the fetcher is allowed
       to use to obtain the required source code. Following are
       considerations surrounding this variable:
@@ -362,7 +362,7 @@
       host listed in ``SRC_URI`` after a successful fetch from the
       ``PREMIRRORS`` occurs.
 
-   BB_DANGLINGAPPENDS_WARNONLY
+   :term:`BB_DANGLINGAPPENDS_WARNONLY`
       Defines how BitBake handles situations where an append file
       (``.bbappend``) has no corresponding recipe file (``.bb``). This
       condition often occurs when layers get out of sync (e.g. ``oe-core``
@@ -381,7 +381,7 @@
 
          BB_DANGLINGAPPENDS_WARNONLY = "1"
 
-   BB_DISKMON_DIRS
+   :term:`BB_DISKMON_DIRS`
       Monitors disk space and available inodes during the build and allows
       you to control the build based on these parameters.
 
@@ -453,7 +453,7 @@
       free inodes in the ``${TMPDIR}`` directory drops below 100 Kbytes. No
       disk space monitoring for the directory itself occurs in this case.
 
-   BB_DISKMON_WARNINTERVAL
+   :term:`BB_DISKMON_WARNINTERVAL`
       Defines the disk space and free inode warning intervals. To set these
       intervals, define the variable in your ``conf/local.conf`` file in
       the :term:`Build Directory`.
@@ -503,7 +503,7 @@
       a respective interval is reached beyond the initial warning (i.e. 1
       Gbytes and 100 Kbytes).
 
-   BB_GENERATE_MIRROR_TARBALLS
+   :term:`BB_GENERATE_MIRROR_TARBALLS`
       Causes tarballs of the source control repositories (e.g. Git
       repositories), including metadata, to be placed in the
       :term:`DL_DIR` directory.
@@ -522,7 +522,7 @@
       clean up your ``DL_DIR`` directory by deleting any Git or other
       source control work directories.
 
-   BB_NUMBER_THREADS
+   :term:`BB_NUMBER_THREADS`
       The maximum number of tasks BitBake should run in parallel at any one
       time. The OpenEmbedded build system automatically configures this
       variable to be equal to the number of cores on the build system. For
@@ -540,7 +540,7 @@
       ":ref:`dev-manual/dev-manual-common-tasks:speeding up a build`"
       section in the Yocto Project Development Tasks Manual.
 
-   BB_SERVER_TIMEOUT
+   :term:`BB_SERVER_TIMEOUT`
       Specifies the time (in seconds) after which to unload the BitBake
       server due to inactivity. Set ``BB_SERVER_TIMEOUT`` to determine how
       long the BitBake server stays resident between invocations.
@@ -554,7 +554,7 @@
       If you want the server to never be unloaded,
       set ``BB_SERVER_TIMEOUT`` to "-1".
 
-   BBCLASSEXTEND
+   :term:`BBCLASSEXTEND`
       Allows you to extend a recipe so that it builds variants of the
       software. Common variants for recipes exist such as "natives" like
       ``quilt-native``, which is a copy of Quilt built to run on the build
@@ -585,18 +585,18 @@
          since ``include`` statements are processed when the recipe is
          parsed.
 
-   BBFILE_COLLECTIONS
+   :term:`BBFILE_COLLECTIONS`
       Lists the names of configured layers. These names are used to find
       the other ``BBFILE_*`` variables. Typically, each layer will append
       its name to this variable in its ``conf/layer.conf`` file.
 
-   BBFILE_PATTERN
+   :term:`BBFILE_PATTERN`
       Variable that expands to match files from
       :term:`BBFILES` in a particular layer. This variable
       is used in the ``conf/layer.conf`` file and must be suffixed with the
       name of the specific layer (e.g. ``BBFILE_PATTERN_emenlow``).
 
-   BBFILE_PRIORITY
+   :term:`BBFILE_PRIORITY`
       Assigns the priority for recipe files in each layer.
 
       This variable is useful in situations where the same recipe appears
@@ -623,7 +623,7 @@
          bitbake-layers show-layers
          to list all configured layers along with their priorities.
 
-   BBFILES
+   :term:`BBFILES`
       A space-separated list of recipe files BitBake uses to build
       software.
 
@@ -632,7 +632,7 @@
       For details on the syntax, see the documentation by following the
       previous link.
 
-   BBFILES_DYNAMIC
+   :term:`BBFILES_DYNAMIC`
       Activates content when identified layers are present. You identify
       the layers by the collections that the layers define.
 
@@ -659,16 +659,16 @@
              /work/my-layer/bbappends/meta-security-isafw/*/*/*.bbappend
              /work/my-layer/bbappends/openembedded-core/meta/*/*/*.bbappend
 
-   BBINCLUDELOGS
+   :term:`BBINCLUDELOGS`
       Variable that controls how BitBake displays logs on build failure.
 
-   BBINCLUDELOGS_LINES
+   :term:`BBINCLUDELOGS_LINES`
       If :term:`BBINCLUDELOGS` is set, specifies the
       maximum number of lines from the task log file to print when
       reporting a failed task. If you do not set ``BBINCLUDELOGS_LINES``,
       the entire log is printed.
 
-   BBLAYERS
+   :term:`BBLAYERS`
       Lists the layers to enable during the build. This variable is defined
       in the ``bblayers.conf`` configuration file in the :term:`Build Directory`.
       Here is an example:
@@ -683,7 +683,7 @@
       This example enables four layers, one of which is a custom,
       user-defined layer named ``meta-mykernel``.
 
-   BBMASK
+   :term:`BBMASK`
       Prevents BitBake from processing recipes and recipe append files.
 
       You can use the ``BBMASK`` variable to "hide" these ``.bb`` and
@@ -720,7 +720,7 @@
          When specifying a directory name, use the trailing slash character
          to ensure you match just that directory name.
 
-   BBMULTICONFIG
+   :term:`BBMULTICONFIG`
       Specifies each additional separate configuration when you are
       building targets with multiple configurations. Use this variable in
       your ``conf/local.conf`` configuration file. Specify a
@@ -740,7 +740,7 @@
       ":ref:`dev-building-images-for-multiple-targets-using-multiple-configurations`"
       section in the Yocto Project Development Tasks Manual.
 
-   BBPATH
+   :term:`BBPATH`
       Used by BitBake to locate ``.bbclass`` and configuration files. This
       variable is analogous to the ``PATH`` variable.
 
@@ -759,7 +759,7 @@
                  $ bitbake target
 
 
-   BBSERVER
+   :term:`BBSERVER`
       If defined in the BitBake environment, ``BBSERVER`` points to the
       BitBake remote server.
 
@@ -774,7 +774,7 @@
       Consequently, ``BBSERVER`` is excluded from checksum and dependency
       data.
 
-   BINCONFIG
+   :term:`BINCONFIG`
       When inheriting the
       :ref:`binconfig-disabled <ref-classes-binconfig-disabled>` class,
       this variable specifies binary configuration scripts to disable in
@@ -789,7 +789,7 @@
 
          BINCONFIG = "${bindir}/libpng-config ${bindir}/libpng16-config"
 
-   BINCONFIG_GLOB
+   :term:`BINCONFIG_GLOB`
       When inheriting the :ref:`binconfig <ref-classes-binconfig>` class,
       this variable specifies a wildcard for configuration scripts that
       need editing. The scripts are edited to correct any paths that have
@@ -816,7 +816,7 @@
       information on the class in the
       ":ref:`binconfig.bbclass <ref-classes-binconfig>`" section.
 
-   BP
+   :term:`BP`
       The base recipe name and version but without any special recipe name
       suffix (i.e. ``-native``, ``lib64-``, and so forth). ``BP`` is
       comprised of the following:
@@ -824,7 +824,7 @@
 
          ${BPN}-${PV}
 
-   BPN
+   :term:`BPN`
       This variable is a version of the :term:`PN` variable with
       common prefixes and suffixes removed, such as ``nativesdk-``,
       ``-cross``, ``-native``, and multilib's ``lib64-`` and ``lib32-``.
@@ -833,73 +833,73 @@
       :term:`SPECIAL_PKGSUFFIX` variables,
       respectively.
 
-   BUGTRACKER
+   :term:`BUGTRACKER`
       Specifies a URL for an upstream bug tracking website for a recipe.
       The OpenEmbedded build system does not use this variable. Rather, the
       variable is a useful pointer in case a bug in the software being
       built needs to be manually reported.
 
-   BUILD_ARCH
+   :term:`BUILD_ARCH`
       Specifies the architecture of the build host (e.g. ``i686``). The
       OpenEmbedded build system sets the value of ``BUILD_ARCH`` from the
       machine name reported by the ``uname`` command.
 
-   BUILD_AS_ARCH
+   :term:`BUILD_AS_ARCH`
       Specifies the architecture-specific assembler flags for the build
       host. By default, the value of ``BUILD_AS_ARCH`` is empty.
 
-   BUILD_CC_ARCH
+   :term:`BUILD_CC_ARCH`
       Specifies the architecture-specific C compiler flags for the build
       host. By default, the value of ``BUILD_CC_ARCH`` is empty.
 
-   BUILD_CCLD
+   :term:`BUILD_CCLD`
       Specifies the linker command to be used for the build host when the C
       compiler is being used as the linker. By default, ``BUILD_CCLD``
       points to GCC and passes as arguments the value of
       :term:`BUILD_CC_ARCH`, assuming
       ``BUILD_CC_ARCH`` is set.
 
-   BUILD_CFLAGS
+   :term:`BUILD_CFLAGS`
       Specifies the flags to pass to the C compiler when building for the
       build host. When building in the ``-native`` context,
       :term:`CFLAGS` is set to the value of this variable by
       default.
 
-   BUILD_CPPFLAGS
+   :term:`BUILD_CPPFLAGS`
       Specifies the flags to pass to the C preprocessor (i.e. to both the C
       and the C++ compilers) when building for the build host. When
       building in the ``-native`` context, :term:`CPPFLAGS`
       is set to the value of this variable by default.
 
-   BUILD_CXXFLAGS
+   :term:`BUILD_CXXFLAGS`
       Specifies the flags to pass to the C++ compiler when building for the
       build host. When building in the ``-native`` context,
       :term:`CXXFLAGS` is set to the value of this variable
       by default.
 
-   BUILD_FC
+   :term:`BUILD_FC`
       Specifies the Fortran compiler command for the build host. By
       default, ``BUILD_FC`` points to Gfortran and passes as arguments the
       value of :term:`BUILD_CC_ARCH`, assuming
       ``BUILD_CC_ARCH`` is set.
 
-   BUILD_LD
+   :term:`BUILD_LD`
       Specifies the linker command for the build host. By default,
       ``BUILD_LD`` points to the GNU linker (ld) and passes as arguments
       the value of :term:`BUILD_LD_ARCH`, assuming
       ``BUILD_LD_ARCH`` is set.
 
-   BUILD_LD_ARCH
+   :term:`BUILD_LD_ARCH`
       Specifies architecture-specific linker flags for the build host. By
       default, the value of ``BUILD_LD_ARCH`` is empty.
 
-   BUILD_LDFLAGS
+   :term:`BUILD_LDFLAGS`
       Specifies the flags to pass to the linker when building for the build
       host. When building in the ``-native`` context,
       :term:`LDFLAGS` is set to the value of this variable
       by default.
 
-   BUILD_OPTIMIZATION
+   :term:`BUILD_OPTIMIZATION`
       Specifies the optimization flags passed to the C compiler when
       building for the build host or the SDK. The flags are passed through
       the :term:`BUILD_CFLAGS` and
@@ -908,25 +908,25 @@
       The default value of the ``BUILD_OPTIMIZATION`` variable is "-O2
       -pipe".
 
-   BUILD_OS
+   :term:`BUILD_OS`
       Specifies the operating system in use on the build host (e.g.
       "linux"). The OpenEmbedded build system sets the value of
       ``BUILD_OS`` from the OS reported by the ``uname`` command - the
       first word, converted to lower-case characters.
 
-   BUILD_PREFIX
+   :term:`BUILD_PREFIX`
       The toolchain binary prefix used for native recipes. The OpenEmbedded
       build system uses the ``BUILD_PREFIX`` value to set the
       :term:`TARGET_PREFIX` when building for
       ``native`` recipes.
 
-   BUILD_STRIP
+   :term:`BUILD_STRIP`
       Specifies the command to be used to strip debugging symbols from
       binaries produced for the build host. By default, ``BUILD_STRIP``
       points to
       ``${``\ :term:`BUILD_PREFIX`\ ``}strip``.
 
-   BUILD_SYS
+   :term:`BUILD_SYS`
       Specifies the system, including the architecture and the operating
       system, to use when building for the build host (i.e. when building
       ``native`` recipes).
@@ -937,11 +937,11 @@
       :term:`BUILD_OS`. You do not need to set the
       ``BUILD_SYS`` variable yourself.
 
-   BUILD_VENDOR
+   :term:`BUILD_VENDOR`
       Specifies the vendor name to use when building for the build host.
       The default value is an empty string ("").
 
-   BUILDDIR
+   :term:`BUILDDIR`
       Points to the location of the :term:`Build Directory`.
       You can define this directory indirectly through the
       ````` <#structure-core-script>`__ script by passing in a Build
@@ -949,7 +949,7 @@
       not provide a Build Directory path, the ``BUILDDIR`` defaults to
       ``build`` in the current directory.
 
-   BUILDHISTORY_COMMIT
+   :term:`BUILDHISTORY_COMMIT`
       When inheriting the :ref:`buildhistory <ref-classes-buildhistory>`
       class, this variable specifies whether or not to commit the build
       history output in a local Git repository. If set to "1", this local
@@ -965,7 +965,7 @@
 
          BUILDHISTORY_COMMIT ?= "0"
 
-   BUILDHISTORY_COMMIT_AUTHOR
+   :term:`BUILDHISTORY_COMMIT_AUTHOR`
       When inheriting the :ref:`buildhistory <ref-classes-buildhistory>`
       class, this variable specifies the author to use for each Git commit.
       In order for the ``BUILDHISTORY_COMMIT_AUTHOR`` variable to work, the
@@ -982,7 +982,7 @@
 
          BUILDHISTORY_COMMIT_AUTHOR ?= "buildhistory <buildhistory@${DISTRO}>"
 
-   BUILDHISTORY_DIR
+   :term:`BUILDHISTORY_DIR`
       When inheriting the :ref:`buildhistory <ref-classes-buildhistory>`
       class, this variable specifies the directory in which build history
       information is kept. For more information on how the variable works,
@@ -993,7 +993,7 @@
 
          BUILDHISTORY_DIR ?= "${TOPDIR}/buildhistory"
 
-   BUILDHISTORY_FEATURES
+   :term:`BUILDHISTORY_FEATURES`
       When inheriting the :ref:`buildhistory <ref-classes-buildhistory>`
       class, this variable specifies the build history features to be
       enabled. For more information on how build history works, see the
@@ -1022,7 +1022,7 @@
 
          BUILDHISTORY_FEATURES ?= "image package sdk"
 
-   BUILDHISTORY_IMAGE_FILES
+   :term:`BUILDHISTORY_IMAGE_FILES`
       When inheriting the :ref:`buildhistory <ref-classes-buildhistory>`
       class, this variable specifies a list of paths to files copied from
       the image contents into the build history directory under an
@@ -1039,7 +1039,7 @@
 
          BUILDHISTORY_IMAGE_FILES ?= "/etc/passwd /etc/group"
 
-   BUILDHISTORY_PUSH_REPO
+   :term:`BUILDHISTORY_PUSH_REPO`
       When inheriting the :ref:`buildhistory <ref-classes-buildhistory>`
       class, this variable optionally specifies a remote repository to
       which build history pushes Git changes. In order for
@@ -1057,38 +1057,38 @@
 
          BUILDHISTORY_PUSH_REPO ?= ""
 
-   BUILDSDK_CFLAGS
+   :term:`BUILDSDK_CFLAGS`
       Specifies the flags to pass to the C compiler when building for the
       SDK. When building in the ``nativesdk-`` context,
       :term:`CFLAGS` is set to the value of this variable by
       default.
 
-   BUILDSDK_CPPFLAGS
+   :term:`BUILDSDK_CPPFLAGS`
       Specifies the flags to pass to the C pre-processor (i.e. to both the
       C and the C++ compilers) when building for the SDK. When building in
       the ``nativesdk-`` context, :term:`CPPFLAGS` is set
       to the value of this variable by default.
 
-   BUILDSDK_CXXFLAGS
+   :term:`BUILDSDK_CXXFLAGS`
       Specifies the flags to pass to the C++ compiler when building for the
       SDK. When building in the ``nativesdk-`` context,
       :term:`CXXFLAGS` is set to the value of this variable
       by default.
 
-   BUILDSDK_LDFLAGS
+   :term:`BUILDSDK_LDFLAGS`
       Specifies the flags to pass to the linker when building for the SDK.
       When building in the ``nativesdk-`` context,
       :term:`LDFLAGS` is set to the value of this variable
       by default.
 
-   BUILDSTATS_BASE
+   :term:`BUILDSTATS_BASE`
       Points to the location of the directory that holds build statistics
       when you use and enable the
       :ref:`buildstats <ref-classes-buildstats>` class. The
       ``BUILDSTATS_BASE`` directory defaults to
       ``${``\ :term:`TMPDIR`\ ``}/buildstats/``.
 
-   BUSYBOX_SPLIT_SUID
+   :term:`BUSYBOX_SPLIT_SUID`
       For the BusyBox recipe, specifies whether to split the output
       executable file into two parts: one for features that require
       ``setuid root``, and one for the remaining features (i.e. those that
@@ -1098,15 +1098,15 @@
       splitting the output executable file. Set the variable to "0" to get
       a single output executable file.
 
-   CACHE
+   :term:`CACHE`
       Specifies the directory BitBake uses to store a cache of the
       :term:`Metadata` so it does not need to be parsed every time
       BitBake is started.
 
-   CC
+   :term:`CC`
       The minimal command and arguments used to run the C compiler.
 
-   CFLAGS
+   :term:`CFLAGS`
       Specifies the flags to pass to the C compiler. This variable is
       exported to an environment variable and thus made visible to the
       software being built during the compilation step.
@@ -1123,7 +1123,7 @@
       -  :term:`BUILDSDK_CFLAGS` when building for
          an SDK (i.e. ``nativesdk-``)
 
-   CLASSOVERRIDE
+   :term:`CLASSOVERRIDE`
       An internal variable specifying the special class override that
       should currently apply (e.g. "class-target", "class-native", and so
       forth). The classes that use this variable (e.g.
@@ -1158,14 +1158,14 @@
       that it is included in the default value of
       :term:`OVERRIDES`.
 
-   CLEANBROKEN
+   :term:`CLEANBROKEN`
       If set to "1" within a recipe, ``CLEANBROKEN`` specifies that the
       ``make clean`` command does not work for the software being built.
       Consequently, the OpenEmbedded build system will not try to run
       ``make clean`` during the :ref:`ref-tasks-configure`
       task, which is the default behavior.
 
-   COMBINED_FEATURES
+   :term:`COMBINED_FEATURES`
       Provides a list of hardware features that are enabled in both
       :term:`MACHINE_FEATURES` and
       :term:`DISTRO_FEATURES`. This select list of
@@ -1175,12 +1175,12 @@
       optional at the distribution level, in case the hardware supports
       Bluetooth but you do not ever intend to use it.
 
-   COMMON_LICENSE_DIR
+   :term:`COMMON_LICENSE_DIR`
       Points to ``meta/files/common-licenses`` in the
       :term:`Source Directory`, which is where generic license
       files reside.
 
-   COMPATIBLE_HOST
+   :term:`COMPATIBLE_HOST`
       A regular expression that resolves to one or more hosts (when the
       recipe is native) or one or more targets (when the recipe is
       non-native) with which a recipe is compatible. The regular expression
@@ -1191,7 +1191,7 @@
       parsing speed since the build system skips parsing recipes not
       compatible with the current system.
 
-   COMPATIBLE_MACHINE
+   :term:`COMPATIBLE_MACHINE`
       A regular expression that resolves to one or more target machines
       with which a recipe is compatible. The regular expression is matched
       against :term:`MACHINEOVERRIDES`. You can use
@@ -1201,7 +1201,7 @@
       speed since the build system skips parsing recipes not compatible
       with the current machine.
 
-   COMPLEMENTARY_GLOB
+   :term:`COMPLEMENTARY_GLOB`
       Defines wildcards to match when installing a list of complementary
       packages for all the packages explicitly (or implicitly) installed in
       an image.
@@ -1230,7 +1230,7 @@
 
          COMPLEMENTARY_GLOB[dev-pkgs] = '*-dev'
 
-   COMPONENTS_DIR
+   :term:`COMPONENTS_DIR`
       Stores sysroot components for each recipe. The OpenEmbedded build
       system uses ``COMPONENTS_DIR`` when constructing recipe-specific
       sysroots for other recipes.
@@ -1240,12 +1240,12 @@
       (i.e.
       "``${``\ :term:`TMPDIR`\ ``}/sysroots-components``").
 
-   CONF_VERSION
+   :term:`CONF_VERSION`
       Tracks the version of the local configuration file (i.e.
       ``local.conf``). The value for ``CONF_VERSION`` increments each time
       ``build/conf/`` compatibility changes.
 
-   CONFFILES
+   :term:`CONFFILES`
       Identifies editable or configurable files that are part of a package.
       If the Package Management System (PMS) is being used to update
       packages on the target system, it is possible that configuration
@@ -1291,7 +1291,7 @@
          Source Directory
          .
 
-   CONFIG_INITRAMFS_SOURCE
+   :term:`CONFIG_INITRAMFS_SOURCE`
       Identifies the initial RAM filesystem (initramfs) source files. The
       OpenEmbedded build system receives and uses this kernel Kconfig
       variable as an environment variable. By default, the variable is set
@@ -1312,15 +1312,15 @@
       ":ref:`building-an-initramfs-image`" section
       in the Yocto Project Development Tasks Manual.
 
-   CONFIG_SITE
+   :term:`CONFIG_SITE`
       A list of files that contains ``autoconf`` test results relevant to
       the current build. This variable is used by the Autotools utilities
       when running ``configure``.
 
-   CONFIGURE_FLAGS
+   :term:`CONFIGURE_FLAGS`
       The minimal arguments for GNU configure.
 
-   CONFLICT_DISTRO_FEATURES
+   :term:`CONFLICT_DISTRO_FEATURES`
       When inheriting the
       :ref:`distro_features_check <ref-classes-distro_features_check>`
       class, this variable identifies distribution features that would be
@@ -1329,7 +1329,7 @@
       appears in ``DISTRO_FEATURES`` within the current configuration, an
       error occurs and the build stops.
 
-   COPYLEFT_LICENSE_EXCLUDE
+   :term:`COPYLEFT_LICENSE_EXCLUDE`
       A space-separated list of licenses to exclude from the source
       archived by the :ref:`archiver <ref-classes-archiver>` class. In
       other words, if a license in a recipe's
@@ -1350,7 +1350,7 @@
       :ref:`copyleft_filter <ref-classes-copyleft_filter>` class, which
       is inherited by the ``archiver`` class.
 
-   COPYLEFT_LICENSE_INCLUDE
+   :term:`COPYLEFT_LICENSE_INCLUDE`
       A space-separated list of licenses to include in the source archived
       by the :ref:`archiver <ref-classes-archiver>` class. In other
       words, if a license in a recipe's :term:`LICENSE`
@@ -1362,7 +1362,7 @@
       is inherited by the ``archiver`` class. The default value includes
       "GPL*", "LGPL*", and "AGPL*".
 
-   COPYLEFT_PN_EXCLUDE
+   :term:`COPYLEFT_PN_EXCLUDE`
       A list of recipes to exclude in the source archived by the
       :ref:`archiver <ref-classes-archiver>` class. The
       ``COPYLEFT_PN_EXCLUDE`` variable overrides the license inclusion and
@@ -1376,7 +1376,7 @@
       :ref:`copyleft_filter <ref-classes-copyleft_filter>` class, which
       is inherited by the ``archiver`` class.
 
-   COPYLEFT_PN_INCLUDE
+   :term:`COPYLEFT_PN_INCLUDE`
       A list of recipes to include in the source archived by the
       :ref:`archiver <ref-classes-archiver>` class. The
       ``COPYLEFT_PN_INCLUDE`` variable overrides the license inclusion and
@@ -1390,7 +1390,7 @@
       :ref:`copyleft_filter <ref-classes-copyleft_filter>` class, which
       is inherited by the ``archiver`` class.
 
-   COPYLEFT_RECIPE_TYPES
+   :term:`COPYLEFT_RECIPE_TYPES`
       A space-separated list of recipe types to include in the source
       archived by the :ref:`archiver <ref-classes-archiver>` class.
       Recipe types are ``target``, ``native``, ``nativesdk``, ``cross``,
@@ -1400,7 +1400,7 @@
       is set by the :ref:`copyleft_filter <ref-classes-copyleft_filter>`
       class, which is inherited by the ``archiver`` class.
 
-   COPY_LIC_DIRS
+   :term:`COPY_LIC_DIRS`
       If set to "1" along with the
       :term:`COPY_LIC_MANIFEST` variable, the
       OpenEmbedded build system copies into the image the license files,
@@ -1421,7 +1421,7 @@
          " section in the Yocto Project Development Tasks Manual for
          information on providing license text.
 
-   COPY_LIC_MANIFEST
+   :term:`COPY_LIC_MANIFEST`
       If set to "1", the OpenEmbedded build system copies the license
       manifest for the image to
       ``/usr/share/common-licenses/license.manifest`` within the image
@@ -1440,7 +1440,7 @@
          " section in the Yocto Project Development Tasks Manual for
          information on providing license text.
 
-   CORE_IMAGE_EXTRA_INSTALL
+   :term:`CORE_IMAGE_EXTRA_INSTALL`
       Specifies the list of packages to be added to the image. You should
       only set this variable in the ``local.conf`` configuration file found
       in the :term:`Build Directory`.
@@ -1448,7 +1448,7 @@
       This variable replaces ``POKY_EXTRA_INSTALL``, which is no longer
       supported.
 
-   COREBASE
+   :term:`COREBASE`
       Specifies the parent directory of the OpenEmbedded-Core Metadata
       layer (i.e. ``meta``).
 
@@ -1459,7 +1459,7 @@
       points to the ``poky`` folder because it is the parent directory of
       the ``poky/meta`` layer.
 
-   COREBASE_FILES
+   :term:`COREBASE_FILES`
       Lists files from the :term:`COREBASE` directory that
       should be copied other than the layers listed in the
       ``bblayers.conf`` file. The ``COREBASE_FILES`` variable exists for
@@ -1472,10 +1472,10 @@
       of ``COREBASE_FILES`` is used in order to only copy the files that
       are actually needed.
 
-   CPP
+   :term:`CPP`
       The minimal command and arguments used to run the C preprocessor.
 
-   CPPFLAGS
+   :term:`CPPFLAGS`
       Specifies the flags to pass to the C pre-processor (i.e. to both the
       C and the C++ compilers). This variable is exported to an environment
       variable and thus made visible to the software being built during the
@@ -1493,7 +1493,7 @@
       -  :term:`BUILDSDK_CPPFLAGS` when building
          for an SDK (i.e. ``nativesdk-``)
 
-   CROSS_COMPILE
+   :term:`CROSS_COMPILE`
       The toolchain binary prefix for the target tools. The
       ``CROSS_COMPILE`` variable is the same as the
       :term:`TARGET_PREFIX` variable.
@@ -1505,14 +1505,14 @@
          variable only in certain contexts (e.g. when building for kernel
          and kernel module recipes).
 
-   CVSDIR
+   :term:`CVSDIR`
       The directory in which files checked out under the CVS system are
       stored.
 
-   CXX
+   :term:`CXX`
       The minimal command and arguments used to run the C++ compiler.
 
-   CXXFLAGS
+   :term:`CXXFLAGS`
       Specifies the flags to pass to the C++ compiler. This variable is
       exported to an environment variable and thus made visible to the
       software being built during the compilation step.
@@ -1529,7 +1529,7 @@
       -  :term:`BUILDSDK_CXXFLAGS` when building
          for an SDK (i.e. ``nativesdk-``)
 
-   D
+   :term:`D`
       The destination directory. The location in the :term:`Build Directory`
       where components are installed by the
       :ref:`ref-tasks-install` task. This location defaults
@@ -1544,15 +1544,15 @@
          fakeroot
          .
 
-   DATE
+   :term:`DATE`
       The date the build was started. Dates appear using the year, month,
       and day (YMD) format (e.g. "20150209" for February 9th, 2015).
 
-   DATETIME
+   :term:`DATETIME`
       The date and time on which the current build started. The format is
       suitable for timestamps.
 
-   DEBIAN_NOAUTONAME
+   :term:`DEBIAN_NOAUTONAME`
       When the :ref:`debian <ref-classes-debian>` class is inherited,
       which is the default behavior, ``DEBIAN_NOAUTONAME`` specifies a
       particular package should not be renamed according to Debian library
@@ -1562,7 +1562,7 @@
 
          DEBIAN_NOAUTONAME_fontconfig-utils = "1"
 
-   DEBIANNAME
+   :term:`DEBIANNAME`
       When the :ref:`debian <ref-classes-debian>` class is inherited,
       which is the default behavior, ``DEBIANNAME`` allows you to override
       the library name for an individual package. Overriding the library
@@ -1573,16 +1573,16 @@
 
          DEBIANNAME_${PN} = "dbus-1"
 
-   DEBUG_BUILD
+   :term:`DEBUG_BUILD`
       Specifies to build packages with debugging information. This
       influences the value of the ``SELECTED_OPTIMIZATION`` variable.
 
-   DEBUG_OPTIMIZATION
+   :term:`DEBUG_OPTIMIZATION`
       The options to pass in ``TARGET_CFLAGS`` and ``CFLAGS`` when
       compiling a system for debugging. This variable defaults to "-O
       -fno-omit-frame-pointer ${DEBUG_FLAGS} -pipe".
 
-   DEFAULT_PREFERENCE
+   :term:`DEFAULT_PREFERENCE`
       Specifies a weak bias for recipe selection priority.
 
       The most common usage of this is variable is to set it to "-1" within
@@ -1600,7 +1600,7 @@
          if that variable is different between two layers that contain
          different versions of the same recipe.
 
-   DEFAULTTUNE
+   :term:`DEFAULTTUNE`
       The default CPU and Application Binary Interface (ABI) tunings (i.e.
       the "tune") used by the OpenEmbedded build system. The
       ``DEFAULTTUNE`` helps define
@@ -1611,7 +1611,7 @@
       the setting using available tunes as defined with
       :term:`AVAILTUNES`.
 
-   DEPENDS
+   :term:`DEPENDS`
       Lists a recipe's build-time dependencies. These are dependencies on
       other recipes whose contents (e.g. headers and shared libraries) are
       needed by the recipe at build time.
@@ -1686,7 +1686,7 @@
       BitBake User Manual for additional information on tasks and
       dependencies.
 
-   DEPLOY_DIR
+   :term:`DEPLOY_DIR`
       Points to the general area that the OpenEmbedded build system uses to
       place images, packages, SDKs, and other output files that are ready
       to be used outside of the build system. By default, this directory
@@ -1701,7 +1701,7 @@
       ":ref:`sdk-dev-environment`" sections all in the
       Yocto Project Overview and Concepts Manual.
 
-   DEPLOY_DIR_DEB
+   :term:`DEPLOY_DIR_DEB`
       Points to the area that the OpenEmbedded build system uses to place
       Debian packages that are ready to be used outside of the build
       system. This variable applies only when
@@ -1723,7 +1723,7 @@
       Feeds <package-feeds-dev-environment>`" section
       in the Yocto Project Overview and Concepts Manual.
 
-   DEPLOY_DIR_IMAGE
+   :term:`DEPLOY_DIR_IMAGE`
       Points to the area that the OpenEmbedded build system uses to place
       images and other associated output files that are ready to be
       deployed onto the target machine. The directory is machine-specific
@@ -1738,7 +1738,7 @@
       ":ref:`sdk-dev-environment`" sections both in
       the Yocto Project Overview and Concepts Manual.
 
-   DEPLOY_DIR_IPK
+   :term:`DEPLOY_DIR_IPK`
       Points to the area that the OpenEmbedded build system uses to place
       IPK packages that are ready to be used outside of the build system.
       This variable applies only when
@@ -1759,7 +1759,7 @@
       Feeds <package-feeds-dev-environment>`" section
       in the Yocto Project Overview and Concepts Manual.
 
-   DEPLOY_DIR_RPM
+   :term:`DEPLOY_DIR_RPM`
       Points to the area that the OpenEmbedded build system uses to place
       RPM packages that are ready to be used outside of the build system.
       This variable applies only when
@@ -1780,7 +1780,7 @@
       Feeds <package-feeds-dev-environment>`" section
       in the Yocto Project Overview and Concepts Manual.
 
-   DEPLOY_DIR_TAR
+   :term:`DEPLOY_DIR_TAR`
       Points to the area that the OpenEmbedded build system uses to place
       tarballs that are ready to be used outside of the build system. This
       variable applies only when
@@ -1801,7 +1801,7 @@
       Feeds <package-feeds-dev-environment>`" section
       in the Yocto Project Overview and Concepts Manual.
 
-   DEPLOYDIR
+   :term:`DEPLOYDIR`
       When inheriting the :ref:`deploy <ref-classes-deploy>` class, the
       ``DEPLOYDIR`` points to a temporary work area for deployed files that
       is set in the ``deploy`` class as follows:
@@ -1814,12 +1814,12 @@
       them into :term:`DEPLOY_DIR_IMAGE`
       afterwards.
 
-   DESCRIPTION
+   :term:`DESCRIPTION`
       The package description used by package managers. If not set,
       ``DESCRIPTION`` takes the value of the :term:`SUMMARY`
       variable.
 
-   DISTRO
+   :term:`DISTRO`
       The short name of the distribution. For information on the long name
       of the distribution, see the :term:`DISTRO_NAME`
       variable.
@@ -1851,10 +1851,10 @@
          meta/conf/distro/defaultsetup.conf
          also in the Source Directory.
 
-   DISTRO_CODENAME
+   :term:`DISTRO_CODENAME`
       Specifies a codename for the distribution being built.
 
-   DISTRO_EXTRA_RDEPENDS
+   :term:`DISTRO_EXTRA_RDEPENDS`
       Specifies a list of distro-specific packages to add to all images.
       This variable takes affect through ``packagegroup-base`` so the
       variable only really applies to the more full-featured images that
@@ -1862,13 +1862,13 @@
       distro policy out of generic images. As with all other distro
       variables, you set this variable in the distro ``.conf`` file.
 
-   DISTRO_EXTRA_RRECOMMENDS
+   :term:`DISTRO_EXTRA_RRECOMMENDS`
       Specifies a list of distro-specific packages to add to all images if
       the packages exist. The packages might not exist or be empty (e.g.
       kernel modules). The list of packages are automatically installed but
       you can remove them.
 
-   DISTRO_FEATURES
+   :term:`DISTRO_FEATURES`
       The software support you want in your distribution for various
       features. You define your distribution features in the distribution
       configuration file.
@@ -1887,7 +1887,7 @@
       provide with this variable, see the "`Distro
       Features <#ref-features-distro>`__" section.
 
-   DISTRO_FEATURES_BACKFILL
+   :term:`DISTRO_FEATURES_BACKFILL`
       Features to be added to ``DISTRO_FEATURES`` if not also present in
       ``DISTRO_FEATURES_BACKFILL_CONSIDERED``.
 
@@ -1898,13 +1898,13 @@
       Backfilling <#ref-features-backfill>`__" section for more
       information.
 
-   DISTRO_FEATURES_BACKFILL_CONSIDERED
+   :term:`DISTRO_FEATURES_BACKFILL_CONSIDERED`
       Features from ``DISTRO_FEATURES_BACKFILL`` that should not be
       backfilled (i.e. added to ``DISTRO_FEATURES``) during the build. See
       the "`Feature Backfilling <#ref-features-backfill>`__" section for
       more information.
 
-   DISTRO_FEATURES_DEFAULT
+   :term:`DISTRO_FEATURES_DEFAULT`
       A convenience variable that gives you the default list of distro
       features with the exception of any features specific to the C library
       (``libc``).
@@ -1918,7 +1918,7 @@
 
          DISTRO_FEATURES ?= "${DISTRO_FEATURES_DEFAULT} myfeature"
 
-   DISTRO_FEATURES_FILTER_NATIVE
+   :term:`DISTRO_FEATURES_FILTER_NATIVE`
       Specifies a list of features that if present in the target
       :term:`DISTRO_FEATURES` value should be
       included in ``DISTRO_FEATURES`` when building native recipes. This
@@ -1926,7 +1926,7 @@
       :term:`DISTRO_FEATURES_NATIVE`
       variable.
 
-   DISTRO_FEATURES_FILTER_NATIVESDK
+   :term:`DISTRO_FEATURES_FILTER_NATIVESDK`
       Specifies a list of features that if present in the target
       :term:`DISTRO_FEATURES` value should be
       included in ``DISTRO_FEATURES`` when building nativesdk recipes. This
@@ -1934,7 +1934,7 @@
       :term:`DISTRO_FEATURES_NATIVESDK`
       variable.
 
-   DISTRO_FEATURES_NATIVE
+   :term:`DISTRO_FEATURES_NATIVE`
       Specifies a list of features that should be included in
       :term:`DISTRO_FEATURES` when building native
       recipes. This variable is used in addition to the features filtered
@@ -1942,7 +1942,7 @@
       :term:`DISTRO_FEATURES_FILTER_NATIVE`
       variable.
 
-   DISTRO_FEATURES_NATIVESDK
+   :term:`DISTRO_FEATURES_NATIVESDK`
       Specifies a list of features that should be included in
       :term:`DISTRO_FEATURES` when building
       nativesdk recipes. This variable is used in addition to the features
@@ -1950,7 +1950,7 @@
       :term:`DISTRO_FEATURES_FILTER_NATIVESDK`
       variable.
 
-   DISTRO_NAME
+   :term:`DISTRO_NAME`
       The long name of the distribution. For information on the short name
       of the distribution, see the :term:`DISTRO` variable.
 
@@ -1980,10 +1980,10 @@
          meta/conf/distro/defaultsetup.conf
          also in the Source Directory.
 
-   DISTRO_VERSION
+   :term:`DISTRO_VERSION`
       The version of the distribution.
 
-   DISTROOVERRIDES
+   :term:`DISTROOVERRIDES`
       A colon-separated list of overrides specific to the current
       distribution. By default, this list includes the value of
       :term:`DISTRO`.
@@ -1995,7 +1995,7 @@
       is included in the default value of
       :term:`OVERRIDES`.
 
-   DL_DIR
+   :term:`DL_DIR`
       The central download directory used by the build process to store
       downloads. By default, ``DL_DIR`` gets files suitable for mirroring
       for everything except Git repositories. If you want tarballs of Git
@@ -2034,7 +2034,7 @@
       ":yocto_wiki:`Working Behind a Network Proxy </wiki/Working_Behind_a_Network_Proxy>`"
       Wiki page.
 
-   DOC_COMPRESS
+   :term:`DOC_COMPRESS`
       When inheriting the :ref:`compress_doc <ref-classes-compress_doc>`
       class, this variable sets the compression policy used when the
       OpenEmbedded build system compresses man pages and info pages. By
@@ -2044,7 +2044,7 @@
       For information on policies and on how to use this variable, see the
       comments in the ``meta/classes/compress_doc.bbclass`` file.
 
-   EFI_PROVIDER
+   :term:`EFI_PROVIDER`
       When building bootable images (i.e. where ``hddimg``, ``iso``, or
       ``wic.vmdk`` is in :term:`IMAGE_FSTYPES`), the
       ``EFI_PROVIDER`` variable specifies the EFI bootloader to use. The
@@ -2054,12 +2054,12 @@
       :ref:`image-live <ref-classes-image-live>` classes for more
       information.
 
-   ENABLE_BINARY_LOCALE_GENERATION
+   :term:`ENABLE_BINARY_LOCALE_GENERATION`
       Variable that controls which locales for ``glibc`` are generated
       during the build (useful if the target device has 64Mbytes of RAM or
       less).
 
-   ERR_REPORT_DIR
+   :term:`ERR_REPORT_DIR`
       When used with the :ref:`report-error <ref-classes-report-error>`
       class, specifies the path used for storing the debug files created by
       the :ref:`error reporting
@@ -2075,14 +2075,14 @@
 
          ERR_REPORT_DIR = "path"
 
-   ERROR_QA
+   :term:`ERROR_QA`
       Specifies the quality assurance checks whose failures are reported as
       errors by the OpenEmbedded build system. You set this variable in
       your distribution configuration file. For a list of the checks you
       can control with this variable, see the
       ":ref:`insane.bbclass <ref-classes-insane>`" section.
 
-   EXCLUDE_FROM_SHLIBS
+   :term:`EXCLUDE_FROM_SHLIBS`
       Triggers the OpenEmbedded build system's shared libraries resolver to
       exclude an entire package when scanning for shared libraries.
 
@@ -2106,7 +2106,7 @@
 
          EXCLUDE_FROM_SHLIBS = "1"
 
-   EXCLUDE_FROM_WORLD
+   :term:`EXCLUDE_FROM_WORLD`
       Directs BitBake to exclude a recipe from world builds (i.e.
       ``bitbake world``). During world builds, BitBake locates, parses and
       builds all recipes found in every layer exposed in the
@@ -2125,7 +2125,7 @@
          only ensures that the recipe is not explicitly added to the list
          of build targets in a world build.
 
-   EXTENDPE
+   :term:`EXTENDPE`
       Used with file and pathnames to create a prefix for a recipe's
       version based on the recipe's :term:`PE` value. If ``PE``
       is set and greater than zero for a recipe, ``EXTENDPE`` becomes that
@@ -2135,7 +2135,7 @@
 
       See the :term:`STAMP` variable for an example.
 
-   EXTENDPKGV
+   :term:`EXTENDPKGV`
       The full package version specification as it appears on the final
       packages produced by a recipe. The variable's value is normally used
       to fix a runtime dependency to the exact same version of another
@@ -2147,7 +2147,7 @@
       The dependency relationships are intended to force the package
       manager to upgrade these types of packages in lock-step.
 
-   EXTERNAL_KERNEL_TOOLS
+   :term:`EXTERNAL_KERNEL_TOOLS`
       When set, the ``EXTERNAL_KERNEL_TOOLS`` variable indicates that these
       tools are not in the source tree.
 
@@ -2158,7 +2158,7 @@
       :ref:`kernel-yocto <ref-classes-kernel-yocto>` class in
       ``meta/classes`` to see how the variable is used.
 
-   EXTERNALSRC
+   :term:`EXTERNALSRC`
       When inheriting the :ref:`externalsrc <ref-classes-externalsrc>`
       class, this variable points to the source tree, which is outside of
       the OpenEmbedded build system. When set, this variable sets the
@@ -2171,7 +2171,7 @@
       ":ref:`dev-manual/dev-manual-common-tasks:building software from an external source`"
       section in the Yocto Project Development Tasks Manual.
 
-   EXTERNALSRC_BUILD
+   :term:`EXTERNALSRC_BUILD`
       When inheriting the :ref:`externalsrc <ref-classes-externalsrc>`
       class, this variable points to the directory in which the recipe's
       source code is built, which is outside of the OpenEmbedded build
@@ -2185,7 +2185,7 @@
       ":ref:`dev-manual/dev-manual-common-tasks:building software from an external source`"
       section in the Yocto Project Development Tasks Manual.
 
-   EXTRA_AUTORECONF
+   :term:`EXTRA_AUTORECONF`
       For recipes inheriting the :ref:`autotools <ref-classes-autotools>`
       class, you can use ``EXTRA_AUTORECONF`` to specify extra options to
       pass to the ``autoreconf`` command that is executed during the
@@ -2193,7 +2193,7 @@
 
       The default value is "--exclude=autopoint".
 
-   EXTRA_IMAGE_FEATURES
+   :term:`EXTRA_IMAGE_FEATURES`
       A list of additional features to include in an image. When listing
       more than one feature, separate them with a space.
 
@@ -2237,7 +2237,7 @@
       variable, see the ":ref:`usingpoky-extend-customimage-imagefeatures`"
       section in the Yocto Project Development Tasks Manual.
 
-   EXTRA_IMAGECMD
+   :term:`EXTRA_IMAGECMD`
       Specifies additional options for the image creation command that has
       been specified in :term:`IMAGE_CMD`. When setting
       this variable, use an override for the associated image type. Here is
@@ -2246,7 +2246,7 @@
 
          EXTRA_IMAGECMD_ext3 ?= "-i 4096"
 
-   EXTRA_IMAGEDEPENDS
+   :term:`EXTRA_IMAGEDEPENDS`
       A list of recipes to build that do not provide packages for
       installing into the root filesystem.
 
@@ -2261,7 +2261,7 @@
          \*RDEPENDS and \*RRECOMMENDS
          variables.
 
-   EXTRANATIVEPATH
+   :term:`EXTRANATIVEPATH`
       A list of subdirectories of
       ``${``\ :term:`STAGING_BINDIR_NATIVE`\ ``}``
       added to the beginning of the environment variable ``PATH``. As an
@@ -2272,16 +2272,16 @@
 
          EXTRANATIVEPATH = "foo bar"
 
-   EXTRA_OECMAKE
+   :term:`EXTRA_OECMAKE`
       Additional `CMake <https://cmake.org/overview/>`__ options. See the
       :ref:`cmake <ref-classes-cmake>` class for additional information.
 
-   EXTRA_OECONF
+   :term:`EXTRA_OECONF`
       Additional ``configure`` script options. See
       :term:`PACKAGECONFIG_CONFARGS` for
       additional information on passing configure script options.
 
-   EXTRA_OEMAKE
+   :term:`EXTRA_OEMAKE`
       Additional GNU ``make`` options.
 
       Because the ``EXTRA_OEMAKE`` defaults to "", you need to set the
@@ -2291,12 +2291,12 @@
       :term:`PARALLEL_MAKEINST` also make use of
       ``EXTRA_OEMAKE`` to pass the required flags.
 
-   EXTRA_OESCONS
+   :term:`EXTRA_OESCONS`
       When inheriting the :ref:`scons <ref-classes-scons>` class, this
       variable specifies additional configuration options you want to pass
       to the ``scons`` command line.
 
-   EXTRA_USERS_PARAMS
+   :term:`EXTRA_USERS_PARAMS`
       When inheriting the :ref:`extrausers <ref-classes-extrausers>`
       class, this variable provides image level user and group operations.
       This is a more global method of providing user and group
@@ -2318,7 +2318,7 @@
          # usermod -s /bin/sh tester; \
          # "
 
-   FEATURE_PACKAGES
+   :term:`FEATURE_PACKAGES`
       Defines one or more packages to include in an image when a specific
       item is included in :term:`IMAGE_FEATURES`.
       When setting the value, ``FEATURE_PACKAGES`` should have the name of
@@ -2340,7 +2340,7 @@
          variable with package groups, which are discussed elsewhere in the
          documentation.
 
-   FEED_DEPLOYDIR_BASE_URI
+   :term:`FEED_DEPLOYDIR_BASE_URI`
       Points to the base URL of the server and location within the
       document-root that provides the metadata and packages required by
       OPKG to support runtime package management of IPK packages. You set
@@ -2358,7 +2358,7 @@
       a set of configuration files for you in your target that work with
       the feed.
 
-   FILES
+   :term:`FILES`
       The list of files and directories that are placed in a package. The
       :term:`PACKAGES` variable lists the packages
       generated by a recipe.
@@ -2395,7 +2395,7 @@
       the :term:`CONFFILES` variable for information on
       how to identify these files to the PMS.
 
-   FILES_SOLIBSDEV
+   :term:`FILES_SOLIBSDEV`
       Defines the file specification to match
       :term:`SOLIBSDEV`. In other words,
       ``FILES_SOLIBSDEV`` defines the full path name of the development
@@ -2407,7 +2407,7 @@
 
          FILES_SOLIBSDEV ?= "${base_libdir}/lib*${SOLIBSDEV} ${libdir}/lib*${SOLIBSDEV}"
 
-   FILESEXTRAPATHS
+   :term:`FILESEXTRAPATHS`
       Extends the search path the OpenEmbedded build system uses when
       looking for files and patches as it processes recipes and append
       files. The default directories BitBake uses when it processes recipes
@@ -2479,7 +2479,7 @@
       files that reside in different layers but are used for the same
       recipe to correctly extend the path.
 
-   FILESOVERRIDES
+   :term:`FILESOVERRIDES`
       A subset of :term:`OVERRIDES` used by the
       OpenEmbedded build system for creating
       :term:`FILESPATH`. The ``FILESOVERRIDES`` variable
@@ -2503,7 +2503,7 @@
          variable. The values match up with expected overrides and are used
          in an expected manner by the build system.
 
-   FILESPATH
+   :term:`FILESPATH`
       The default set of directories the OpenEmbedded build system uses
       when searching for patches and files.
 
@@ -2562,7 +2562,7 @@
       the Yocto Project Development Tasks Manual. See the
       :ref:`ref-tasks-patch` task as well.
 
-   FILESYSTEM_PERMS_TABLES
+   :term:`FILESYSTEM_PERMS_TABLES`
       Allows you to define your own file permissions settings table as part
       of your configuration for the packaging process. For example, suppose
       you need a consistent set of custom permissions for a set of groups
@@ -2585,42 +2585,42 @@
       For guidance on how to create your own file permissions settings
       table file, examine the existing ``fs-perms.txt``.
 
-   FIT_GENERATE_KEYS
+   :term:`FIT_GENERATE_KEYS`
       Decides whether to generate the keys for signing fitImage if they
       don't already exist. The keys are created in ``UBOOT_SIGN_KEYDIR``.
       The default value is 0.
 
-   FIT_HASH_ALG
+   :term:`FIT_HASH_ALG`
       Specifies the hash algorithm used in creating the FIT Image. For e.g. sha256.
 
-   FIT_KEY_GENRSA_ARGS
+   :term:`FIT_KEY_GENRSA_ARGS`
       Arguments to openssl genrsa for generating RSA private key for signing
       fitImage. The default value is "-F4". i.e. the public exponent 65537 to
       use.
 
-   FIT_KEY_REQ_ARGS
+   :term:`FIT_KEY_REQ_ARGS`
       Arguments to openssl req for generating certificate for signing fitImage.
       The default value is "-batch -new". batch for non interactive mode
       and new for generating new keys.
 
-   FIT_KEY_SIGN_PKCS
+   :term:`FIT_KEY_SIGN_PKCS`
       Format for public key ceritifcate used in signing fitImage.
       The default value is "x509".
 
-   FIT_SIGN_ALG
+   :term:`FIT_SIGN_ALG`
       Specifies the signature algorithm used in creating the FIT Image.
       For e.g. rsa2048.
 
-   FIT_SIGN_NUMBITS
+   :term:`FIT_SIGN_NUMBITS`
       Size of private key in number of bits used in fitImage. The default
       value is "2048".
 
-   FONT_EXTRA_RDEPENDS
+   :term:`FONT_EXTRA_RDEPENDS`
       When inheriting the :ref:`fontcache <ref-classes-fontcache>` class,
       this variable specifies the runtime dependencies for font packages.
       By default, the ``FONT_EXTRA_RDEPENDS`` is set to "fontconfig-utils".
 
-   FONT_PACKAGES
+   :term:`FONT_PACKAGES`
       When inheriting the :ref:`fontcache <ref-classes-fontcache>` class,
       this variable identifies packages containing font files that need to
       be cached by Fontconfig. By default, the ``fontcache`` class assumes
@@ -2628,18 +2628,18 @@
       ``${``\ :term:`PN`\ ``}``). Use this variable if fonts you
       need are in a package other than that main package.
 
-   FORCE_RO_REMOVE
+   :term:`FORCE_RO_REMOVE`
       Forces the removal of the packages listed in ``ROOTFS_RO_UNNEEDED``
       during the generation of the root filesystem.
 
       Set the variable to "1" to force the removal of these packages.
 
-   FULL_OPTIMIZATION
+   :term:`FULL_OPTIMIZATION`
       The options to pass in ``TARGET_CFLAGS`` and ``CFLAGS`` when
       compiling an optimized system. This variable defaults to "-O2 -pipe
       ${DEBUG_FLAGS}".
 
-   GCCPIE
+   :term:`GCCPIE`
       Enables Position Independent Executables (PIE) within the GNU C
       Compiler (GCC). Enabling PIE in the GCC makes Return Oriented
       Programming (ROP) attacks much more difficult to execute.
@@ -2650,7 +2650,7 @@
 
          GCCPIE ?= "--enable-default-pie"
 
-   GCCVERSION
+   :term:`GCCVERSION`
       Specifies the default version of the GNU C Compiler (GCC) used for
       compilation. By default, ``GCCVERSION`` is set to "8.x" in the
       ``meta/conf/distro/include/tcmode-default.inc`` include file:
@@ -2661,14 +2661,14 @@
       You can override this value by setting it in a
       configuration file such as the ``local.conf``.
 
-   GDB
+   :term:`GDB`
       The minimal command and arguments to run the GNU Debugger.
 
-   GITDIR
+   :term:`GITDIR`
       The directory in which a local copy of a Git repository is stored
       when it is cloned.
 
-   GLIBC_GENERATE_LOCALES
+   :term:`GLIBC_GENERATE_LOCALES`
       Specifies the list of GLIBC locales to generate should you not wish
       to generate all LIBC locals, which can be time consuming.
 
@@ -2686,7 +2686,7 @@
 
          GLIBC_GENERATE_LOCALES = "en_GB.UTF-8 en_US.UTF-8"
 
-   GROUPADD_PARAM
+   :term:`GROUPADD_PARAM`
       When inheriting the :ref:`useradd <ref-classes-useradd>` class,
       this variable specifies for a package what parameters should be
       passed to the ``groupadd`` command if you wish to add a group to the
@@ -2700,7 +2700,7 @@
       For information on the standard Linux shell command
       ``groupadd``, see http://linux.die.net/man/8/groupadd.
 
-   GROUPMEMS_PARAM
+   :term:`GROUPMEMS_PARAM`
       When inheriting the :ref:`useradd <ref-classes-useradd>` class,
       this variable specifies for a package what parameters should be
       passed to the ``groupmems`` command if you wish to modify the members
@@ -2709,7 +2709,7 @@
       For information on the standard Linux shell command ``groupmems``,
       see http://linux.die.net/man/8/groupmems.
 
-   GRUB_GFXSERIAL
+   :term:`GRUB_GFXSERIAL`
       Configures the GNU GRand Unified Bootloader (GRUB) to have graphics
       and serial in the boot menu. Set this variable to "1" in your
       ``local.conf`` or distribution configuration file to enable graphics
@@ -2718,7 +2718,7 @@
       See the :ref:`grub-efi <ref-classes-grub-efi>` class for more
       information on how this variable is used.
 
-   GRUB_OPTS
+   :term:`GRUB_OPTS`
       Additional options to add to the GNU GRand Unified Bootloader (GRUB)
       configuration. Use a semi-colon character (``;``) to separate
       multiple options.
@@ -2727,7 +2727,7 @@
       :ref:`grub-efi <ref-classes-grub-efi>` class for more information
       on how this variable is used.
 
-   GRUB_TIMEOUT
+   :term:`GRUB_TIMEOUT`
       Specifies the timeout before executing the default ``LABEL`` in the
       GNU GRand Unified Bootloader (GRUB).
 
@@ -2735,18 +2735,18 @@
       :ref:`grub-efi <ref-classes-grub-efi>` class for more information
       on how this variable is used.
 
-   GTKIMMODULES_PACKAGES
+   :term:`GTKIMMODULES_PACKAGES`
       When inheriting the
       :ref:`gtk-immodules-cache <ref-classes-gtk-immodules-cache>` class,
       this variable specifies the packages that contain the GTK+ input
       method modules being installed when the modules are in packages other
       than the main package.
 
-   HOMEPAGE
+   :term:`HOMEPAGE`
       Website where more information about the software the recipe is
       building can be found.
 
-   HOST_ARCH
+   :term:`HOST_ARCH`
       The name of the target architecture, which is normally the same as
       :term:`TARGET_ARCH`. The OpenEmbedded build system
       supports many architectures. Here is an example list of architectures
@@ -2761,7 +2761,7 @@
       - mips
       - mipsel
 
-   HOST_CC_ARCH
+   :term:`HOST_CC_ARCH`
       Specifies architecture-specific compiler flags that are passed to the
       C compiler.
 
@@ -2777,18 +2777,18 @@
       -  ``BUILDSDK_CC_ARCH`` when building for an SDK (i.e.
          ``nativesdk-``)
 
-   HOST_OS
+   :term:`HOST_OS`
       Specifies the name of the target operating system, which is normally
       the same as the :term:`TARGET_OS`. The variable can
       be set to "linux" for ``glibc``-based systems and to "linux-musl" for
       ``musl``. For ARM/EABI targets, there are also "linux-gnueabi" and
       "linux-musleabi" values possible.
 
-   HOST_PREFIX
+   :term:`HOST_PREFIX`
       Specifies the prefix for the cross-compile toolchain. ``HOST_PREFIX``
       is normally the same as :term:`TARGET_PREFIX`.
 
-   HOST_SYS
+   :term:`HOST_SYS`
       Specifies the system, including the architecture and the operating
       system, for which the build is occurring in the context of the
       current recipe.
@@ -2810,7 +2810,7 @@
       -  Given a recipe being built for a little-endian MIPS target running
          Linux, the value might be "mipsel-linux".
 
-   HOSTTOOLS
+   :term:`HOSTTOOLS`
       A space-separated list (filter) of tools on the build host that
       should be allowed to be called from within build tasks. Using this
       filter helps reduce the possibility of host contamination. If a tool
@@ -2821,7 +2821,7 @@
       For additional information, see
       :term:`HOSTTOOLS_NONFATAL`.
 
-   HOSTTOOLS_NONFATAL
+   :term:`HOSTTOOLS_NONFATAL`
       A space-separated list (filter) of tools on the build host that
       should be allowed to be called from within build tasks. Using this
       filter helps reduce the possibility of host contamination. Unlike
@@ -2830,11 +2830,11 @@
       ``HOSTTOOLS_NONFATAL`` is not found on the build host. Thus, you can
       use ``HOSTTOOLS_NONFATAL`` to filter optional host tools.
 
-   HOST_VENDOR
+   :term:`HOST_VENDOR`
       Specifies the name of the vendor. ``HOST_VENDOR`` is normally the
       same as :term:`TARGET_VENDOR`.
 
-   ICECC_DISABLED
+   :term:`ICECC_DISABLED`
       Disables or enables the ``icecc`` (Icecream) function. For more
       information on this function and best practices for using this
       variable, see the ":ref:`icecc.bbclass <ref-classes-icecc>`"
@@ -2851,7 +2851,7 @@
 
          ICECC_DISABLED = ""
 
-   ICECC_ENV_EXEC
+   :term:`ICECC_ENV_EXEC`
       Points to the ``icecc-create-env`` script that you provide. This
       variable is used by the :ref:`icecc <ref-classes-icecc>` class. You
       set this variable in your ``local.conf`` file.
@@ -2861,7 +2861,7 @@
       ``icecc-create-env.bb`` recipe, which is a modified version and not
       the one that comes with ``icecc``.
 
-   ICECC_PARALLEL_MAKE
+   :term:`ICECC_PARALLEL_MAKE`
       Extra options passed to the ``make`` command during the
       :ref:`ref-tasks-compile` task that specify parallel
       compilation. This variable usually takes the form of "-j x", where x
@@ -2887,13 +2887,13 @@
       use it (i.e. the system does not detect and assign the number of
       cores as is done with ``PARALLEL_MAKE``).
 
-   ICECC_PATH
+   :term:`ICECC_PATH`
       The location of the ``icecc`` binary. You can set this variable in
       your ``local.conf`` file. If your ``local.conf`` file does not define
       this variable, the :ref:`icecc <ref-classes-icecc>` class attempts
       to define it by locating ``icecc`` using ``which``.
 
-   ICECC_USER_CLASS_BL
+   :term:`ICECC_USER_CLASS_BL`
       Identifies user classes that you do not want the Icecream distributed
       compile support to consider. This variable is used by the
       :ref:`icecc <ref-classes-icecc>` class. You set this variable in
@@ -2903,7 +2903,7 @@
       them from distributed compilation across remote hosts. Any classes
       you list will be distributed and compiled locally.
 
-   ICECC_USER_PACKAGE_BL
+   :term:`ICECC_USER_PACKAGE_BL`
       Identifies user recipes that you do not want the Icecream distributed
       compile support to consider. This variable is used by the
       :ref:`icecc <ref-classes-icecc>` class. You set this variable in
@@ -2913,7 +2913,7 @@
       them from distributed compilation across remote hosts. Any packages
       you list will be distributed and compiled locally.
 
-   ICECC_USER_PACKAGE_WL
+   :term:`ICECC_USER_PACKAGE_WL`
       Identifies user recipes that use an empty
       :term:`PARALLEL_MAKE` variable that you want to
       force remote distributed compilation on using the Icecream
@@ -2921,11 +2921,11 @@
       :ref:`icecc <ref-classes-icecc>` class. You set this variable in
       your ``local.conf`` file.
 
-   IMAGE_BASENAME
+   :term:`IMAGE_BASENAME`
       The base name of image output files. This variable defaults to the
       recipe name (``${``\ :term:`PN`\ ``}``).
 
-   IMAGE_EFI_BOOT_FILES
+   :term:`IMAGE_EFI_BOOT_FILES`
       A space-separated list of files installed into the boot partition
       when preparing an image using the Wic tool with the
       ``bootimg-efi`` source plugin. By default,
@@ -2961,7 +2961,7 @@
       material for Wic is located in the
       ":doc:`../ref-manual/ref-kickstart`" chapter.
 
-   IMAGE_BOOT_FILES
+   :term:`IMAGE_BOOT_FILES`
       A space-separated list of files installed into the boot partition
       when preparing an image using the Wic tool with the
       ``bootimg-partition`` source plugin. By default,
@@ -2997,7 +2997,7 @@
       material for Wic is located in the
       ":doc:`../ref-manual/ref-kickstart`" chapter.
 
-   IMAGE_CLASSES
+   :term:`IMAGE_CLASSES`
       A list of classes that all images should inherit. You typically use
       this variable to specify the list of classes that register the
       different types of images the OpenEmbedded build system creates.
@@ -3009,7 +3009,7 @@
       For more information, see ``meta/classes/image_types.bbclass`` in the
       :term:`Source Directory`.
 
-   IMAGE_CMD
+   :term:`IMAGE_CMD`
       Specifies the command to create the image file for a specific image
       type, which corresponds to the value set set in
       :term:`IMAGE_FSTYPES`, (e.g. ``ext3``,
@@ -3026,7 +3026,7 @@
       variable, see the :ref:`image_types <ref-classes-image_types>`
       class file, which is ``meta/classes/image_types.bbclass``.
 
-   IMAGE_DEVICE_TABLES
+   :term:`IMAGE_DEVICE_TABLES`
       Specifies one or more files that contain custom device tables that
       are passed to the ``makedevs`` command as part of creating an image.
       These files list basic device nodes that should be created under
@@ -3036,7 +3036,7 @@
       device table files, see ``meta/files/device_table-minimal.txt`` as an
       example.
 
-   IMAGE_FEATURES
+   :term:`IMAGE_FEATURES`
       The primary list of features to include in an image. Typically, you
       configure this variable in an image recipe. Although you can use this
       variable from your ``local.conf`` file, which is found in the
@@ -3056,7 +3056,7 @@
       variable, see the ":ref:`usingpoky-extend-customimage-imagefeatures`"
       section in the Yocto Project Development Tasks Manual.
 
-   IMAGE_FSTYPES
+   :term:`IMAGE_FSTYPES`
       Specifies the formats the OpenEmbedded build system uses during the
       build when creating the root filesystem. For example, setting
       ``IMAGE_FSTYPES`` as follows causes the build system to create root
@@ -3079,7 +3079,7 @@
             or ``_prepend``. You must use the ``+=`` operator to add one or
             more options to the ``IMAGE_FSTYPES`` variable.
 
-   IMAGE_INSTALL
+   :term:`IMAGE_INSTALL`
       Used by recipes to specify the packages to install into an image
       through the :ref:`image <ref-classes-image>` class. Use the
       ``IMAGE_INSTALL`` variable with care to avoid ordering issues.
@@ -3129,7 +3129,7 @@
             specific situation. In both these cases, the behavior is
             contrary to how most users expect the ``+=`` operator to work.
 
-   IMAGE_LINGUAS
+   :term:`IMAGE_LINGUAS`
       Specifies the list of locales to install into the image during the
       root filesystem construction process. The OpenEmbedded build system
       automatically splits locale files, which are used for localization,
@@ -3151,7 +3151,7 @@
       See the :term:`GLIBC_GENERATE_LOCALES`
       variable for information on generating GLIBC locales.
 
-   IMAGE_MANIFEST
+   :term:`IMAGE_MANIFEST`
       The manifest file for the image. This file lists all the installed
       packages that make up the image. The file contains package
       information on a line-per-package basis as follows:
@@ -3171,7 +3171,7 @@
       information on how the image is created in the ":ref:`image-generation-dev-environment`"
       section in the Yocto Project Overview and Concepts Manual.
 
-   IMAGE_NAME
+   :term:`IMAGE_NAME`
       The name of the output image files minus the extension. This variable
       is derived using the :term:`IMAGE_BASENAME`,
       :term:`MACHINE`, and :term:`DATETIME`
@@ -3180,7 +3180,7 @@
 
          IMAGE_NAME = "${IMAGE_BASENAME}-${MACHINE}-${DATETIME}"
 
-   IMAGE_OVERHEAD_FACTOR
+   :term:`IMAGE_OVERHEAD_FACTOR`
       Defines a multiplier that the build system applies to the initial
       image size for cases when the multiplier times the returned disk
       usage value for the image is greater than the sum of
@@ -3209,7 +3209,7 @@
       added to the image by using the ``IMAGE_ROOTFS_EXTRA_SPACE``
       variable.
 
-   IMAGE_PKGTYPE
+   :term:`IMAGE_PKGTYPE`
       Defines the package type (i.e. DEB, RPM, IPK, or TAR) used by the
       OpenEmbedded build system. The variable is defined appropriately by
       the :ref:`package_deb <ref-classes-package_deb>`,
@@ -3242,7 +3242,7 @@
          format are never used as a substitute packaging format for DEB,
          RPM, and IPK formatted files for your image or SDK.
 
-   IMAGE_POSTPROCESS_COMMAND
+   :term:`IMAGE_POSTPROCESS_COMMAND`
       Specifies a list of functions to call once the OpenEmbedded build
       system creates the final image output files. You can specify
       functions separated by semicolons:
@@ -3256,7 +3256,7 @@
       :term:`IMAGE_ROOTFS` variable for more
       information.
 
-   IMAGE_PREPROCESS_COMMAND
+   :term:`IMAGE_PREPROCESS_COMMAND`
       Specifies a list of functions to call before the OpenEmbedded build
       system creates the final image output files. You can specify
       functions separated by semicolons:
@@ -3270,19 +3270,19 @@
       :term:`IMAGE_ROOTFS` variable for more
       information.
 
-   IMAGE_ROOTFS
+   :term:`IMAGE_ROOTFS`
       The location of the root filesystem while it is under construction
       (i.e. during the :ref:`ref-tasks-rootfs` task). This
       variable is not configurable. Do not change it.
 
-   IMAGE_ROOTFS_ALIGNMENT
+   :term:`IMAGE_ROOTFS_ALIGNMENT`
       Specifies the alignment for the output image file in Kbytes. If the
       size of the image is not a multiple of this value, then the size is
       rounded up to the nearest multiple of the value. The default value is
       "1". See :term:`IMAGE_ROOTFS_SIZE` for
       additional information.
 
-   IMAGE_ROOTFS_EXTRA_SPACE
+   :term:`IMAGE_ROOTFS_EXTRA_SPACE`
       Defines additional free disk space created in the image in Kbytes. By
       default, this variable is set to "0". This free disk space is added
       to the image after the build system determines the image size as
@@ -3302,7 +3302,7 @@
 
          IMAGE_ROOTFS_EXTRA_SPACE = "41943040"
 
-   IMAGE_ROOTFS_SIZE
+   :term:`IMAGE_ROOTFS_SIZE`
       Defines the size in Kbytes for the generated image. The OpenEmbedded
       build system determines the final size for the generated image using
       an algorithm that takes into account the initial disk space used for
@@ -3327,7 +3327,7 @@
       and :term:`IMAGE_ROOTFS_EXTRA_SPACE`
       variables for related information.
 
-   IMAGE_TYPEDEP
+   :term:`IMAGE_TYPEDEP`
       Specifies a dependency from one image type on another. Here is an
       example from the :ref:`image-live <ref-classes-image-live>` class:
       ::
@@ -3340,7 +3340,7 @@
       one of the components of the live image is an ``ext3`` formatted
       partition containing the root filesystem.
 
-   IMAGE_TYPES
+   :term:`IMAGE_TYPES`
       Specifies the complete list of supported image types by default:
 
       - btrfs
@@ -3385,7 +3385,7 @@
       For more information about these types of images, see
       ``meta/classes/image_types*.bbclass`` in the :term:`Source Directory`.
 
-   INC_PR
+   :term:`INC_PR`
       Helps define the recipe revision for recipes that share a common
       ``include`` file. You can think of this variable as part of the
       recipe revision as set from within an include file.
@@ -3423,7 +3423,7 @@
       lines in the example are from individual recipes and show how the
       ``PR`` value is set.
 
-   INCOMPATIBLE_LICENSE
+   :term:`INCOMPATIBLE_LICENSE`
       Specifies a space-separated list of license names (as they would
       appear in :term:`LICENSE`) that should be excluded
       from the build. Recipes that provide no alternatives to listed
@@ -3465,7 +3465,7 @@
          COMPATIBLE_LICENSES
          , thus only allowing the latter licences to be used.
 
-   INHERIT
+   :term:`INHERIT`
       Causes the named class or classes to be inherited globally. Anonymous
       functions in the class or classes are not executed for the base
       configuration and in each individual recipe. The OpenEmbedded build
@@ -3475,7 +3475,7 @@
       :ref:`bitbake:bitbake-user-manual/bitbake-user-manual-metadata:\`\`inherit\`\` configuration directive`"
       section in the Bitbake User Manual.
 
-   INHERIT_DISTRO
+   :term:`INHERIT_DISTRO`
       Lists classes that will be inherited at the distribution level. It is
       unlikely that you want to edit this variable.
 
@@ -3485,7 +3485,7 @@
 
          INHERIT_DISTRO ?= "debian devshell sstate license"
 
-   INHIBIT_DEFAULT_DEPS
+   :term:`INHIBIT_DEFAULT_DEPS`
       Prevents the default dependencies, namely the C compiler and standard
       C library (libc), from being added to :term:`DEPENDS`.
       This variable is usually used within recipes that do not require any
@@ -3494,7 +3494,7 @@
       Set the variable to "1" to prevent the default dependencies from
       being added.
 
-   INHIBIT_PACKAGE_DEBUG_SPLIT
+   :term:`INHIBIT_PACKAGE_DEBUG_SPLIT`
       Prevents the OpenEmbedded build system from splitting out debug
       information during packaging. By default, the build system splits out
       debugging information during the
@@ -3510,7 +3510,7 @@
 
          INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
 
-   INHIBIT_PACKAGE_STRIP
+   :term:`INHIBIT_PACKAGE_STRIP`
       If set to "1", causes the build to not strip binaries in resulting
       packages and prevents the ``-dbg`` package from containing the source
       files.
@@ -3520,7 +3520,7 @@
       Consequently, you should not set ``INHIBIT_PACKAGE_STRIP`` when you
       plan to debug in general.
 
-   INHIBIT_SYSROOT_STRIP
+   :term:`INHIBIT_SYSROOT_STRIP`
       If set to "1", causes the build to not strip binaries in the
       resulting sysroot.
 
@@ -3544,7 +3544,7 @@
          strippable, other files exist that are needed for the build that
          are not strippable.
 
-   INITRAMFS_FSTYPES
+   :term:`INITRAMFS_FSTYPES`
       Defines the format for the output image of an initial RAM filesystem
       (initramfs), which is used during boot. Supported formats are the
       same as those supported by the
@@ -3557,7 +3557,7 @@
       `initrd <https://en.wikipedia.org/wiki/Initrd>`__ mechanism, expects
       an optionally compressed cpio archive.
 
-   INITRAMFS_IMAGE
+   :term:`INITRAMFS_IMAGE`
       Specifies the :term:`PROVIDES` name of an image
       recipe that is used to build an initial RAM filesystem (initramfs)
       image. In other words, the ``INITRAMFS_IMAGE`` variable causes an
@@ -3598,7 +3598,7 @@
       image, see the ":ref:`building-an-initramfs-image`" section
       in the Yocto Project Development Tasks Manual.
 
-   INITRAMFS_IMAGE_BUNDLE
+   :term:`INITRAMFS_IMAGE_BUNDLE`
       Controls whether or not the image recipe specified by
       :term:`INITRAMFS_IMAGE` is run through an
       extra pass
@@ -3648,7 +3648,7 @@
       initramfs, see the ":ref:`building-an-initramfs-image`" section
       in the Yocto Project Development Tasks Manual.
 
-   INITRAMFS_LINK_NAME
+   :term:`INITRAMFS_LINK_NAME`
       The link name of the initial RAM filesystem image. This variable is
       set in the ``meta/classes/kernel-artifact-names.bbclass`` file as
       follows:
@@ -3666,7 +3666,7 @@
       See the :term:`MACHINE` variable for additional
       information.
 
-   INITRAMFS_NAME
+   :term:`INITRAMFS_NAME`
       The base name of the initial RAM filesystem image. This variable is
       set in the ``meta/classes/kernel-artifact-names.bbclass`` file as
       follows:
@@ -3680,14 +3680,14 @@
 
          KERNEL_ARTIFACT_NAME ?= "${PKGE}-${PKGV}-${PKGR}-${MACHINE}${IMAGE_VERSION_SUFFIX}"
 
-   INITRD
+   :term:`INITRD`
       Indicates list of filesystem images to concatenate and use as an
       initial RAM disk (``initrd``).
 
       The ``INITRD`` variable is an optional variable used with the
       :ref:`image-live <ref-classes-image-live>` class.
 
-   INITRD_IMAGE
+   :term:`INITRD_IMAGE`
       When building a "live" bootable image (i.e. when
       :term:`IMAGE_FSTYPES` contains "live"),
       ``INITRD_IMAGE`` specifies the image recipe that should be built to
@@ -3697,14 +3697,14 @@
       See the :ref:`image-live <ref-classes-image-live>` class for more
       information.
 
-   INITSCRIPT_NAME
+   :term:`INITSCRIPT_NAME`
       The filename of the initialization script as installed to
       ``${sysconfdir}/init.d``.
 
       This variable is used in recipes when using ``update-rc.d.bbclass``.
       The variable is mandatory.
 
-   INITSCRIPT_PACKAGES
+   :term:`INITSCRIPT_PACKAGES`
       A list of the packages that contain initscripts. If multiple packages
       are specified, you need to append the package name to the other
       ``INITSCRIPT_*`` as an override.
@@ -3713,7 +3713,7 @@
       The variable is optional and defaults to the :term:`PN`
       variable.
 
-   INITSCRIPT_PARAMS
+   :term:`INITSCRIPT_PARAMS`
       Specifies the options to pass to ``update-rc.d``. Here is an example:
       ::
 
@@ -3730,7 +3730,7 @@
       please see the ``update-rc.d`` manual page at
       https://manpages.debian.org/buster/init-system-helpers/update-rc.d.8.en.html
 
-   INSANE_SKIP
+   :term:`INSANE_SKIP`
       Specifies the QA checks to skip for a specific package within a
       recipe. For example, to skip the check for symbolic link ``.so``
       files in the main package of a recipe, add the following to the
@@ -3743,19 +3743,19 @@
       See the ":ref:`insane.bbclass <ref-classes-insane>`" section for a
       list of the valid QA checks you can specify using this variable.
 
-   INSTALL_TIMEZONE_FILE
+   :term:`INSTALL_TIMEZONE_FILE`
       By default, the ``tzdata`` recipe packages an ``/etc/timezone`` file.
       Set the ``INSTALL_TIMEZONE_FILE`` variable to "0" at the
       configuration level to disable this behavior.
 
-   IPK_FEED_URIS
+   :term:`IPK_FEED_URIS`
       When the IPK backend is in use and package management is enabled on
       the target, you can use this variable to set up ``opkg`` in the
       target image to point to package feeds on a nominated server. Once
       the feed is established, you can perform installations or upgrades
       using the package manager at runtime.
 
-   KARCH
+   :term:`KARCH`
       Defines the kernel architecture used when assembling the
       configuration. Architectures supported for this release are:
 
@@ -3768,7 +3768,7 @@
 
       You define the ``KARCH`` variable in the :ref:`kernel-dev/kernel-dev-advanced:bsp descriptions`.
 
-   KBRANCH
+   :term:`KBRANCH`
       A regular expression used by the build process to explicitly identify
       the kernel branch that is validated, patched, and configured during a
       build. You must set this variable to ensure the exact kernel branch
@@ -3803,7 +3803,7 @@
       identify the kernel branch to use when building for each supported
       BSP.
 
-   KBUILD_DEFCONFIG
+   :term:`KBUILD_DEFCONFIG`
       When used with the :ref:`kernel-yocto <ref-classes-kernel-yocto>`
       class, specifies an "in-tree" kernel configuration file for use
       during a kernel build.
@@ -3839,12 +3839,12 @@
       ":ref:`kernel-dev/kernel-dev-common:using an "in-tree" \`\`defconfig\`\` file`"
       section in the Yocto Project Linux Kernel Development Manual.
 
-   KERNEL_ALT_IMAGETYPE
+   :term:`KERNEL_ALT_IMAGETYPE`
       Specifies an alternate kernel image type for creation in addition to
       the kernel image type specified using the
       :term:`KERNEL_IMAGETYPE` variable.
 
-   KERNEL_ARTIFACT_NAME
+   :term:`KERNEL_ARTIFACT_NAME`
       Specifies the name of all of the build artifacts. You can change the
       name of the artifacts by changing the ``KERNEL_ARTIFACT_NAME``
       variable.
@@ -3863,7 +3863,7 @@
 
          The IMAGE_VERSION_SUFFIX variable is set to DATETIME.
 
-   KERNEL_CLASSES
+   :term:`KERNEL_CLASSES`
       A list of classes defining kernel image types that the
       :ref:`kernel <ref-classes-kernel>` class should inherit. You
       typically append this variable to enable extended image types. An
@@ -3872,7 +3872,7 @@
       custom kernel image types with the ``kernel`` class using this
       variable.
 
-   KERNEL_DEVICETREE
+   :term:`KERNEL_DEVICETREE`
       Specifies the name of the generated Linux kernel device tree (i.e.
       the ``.dtb``) file.
 
@@ -3885,7 +3885,7 @@
       :ref:`kernel-devicetree <ref-classes-kernel-devicetree>` class must
       be inherited.
 
-   KERNEL_DTB_LINK_NAME
+   :term:`KERNEL_DTB_LINK_NAME`
       The link name of the kernel device tree binary (DTB). This variable
       is set in the ``meta/classes/kernel-artifact-names.bbclass`` file as
       follows:
@@ -3903,7 +3903,7 @@
       See the :term:`MACHINE` variable for additional
       information.
 
-   KERNEL_DTB_NAME
+   :term:`KERNEL_DTB_NAME`
       The base name of the kernel device tree binary (DTB). This variable
       is set in the ``meta/classes/kernel-artifact-names.bbclass`` file as
       follows:
@@ -3917,11 +3917,11 @@
 
          KERNEL_ARTIFACT_NAME ?= "${PKGE}-${PKGV}-${PKGR}-${MACHINE}${IMAGE_VERSION_SUFFIX}"
 
-   KERNEL_EXTRA_ARGS
+   :term:`KERNEL_EXTRA_ARGS`
       Specifies additional ``make`` command-line arguments the OpenEmbedded
       build system passes on when compiling the kernel.
 
-   KERNEL_FEATURES
+   :term:`KERNEL_FEATURES`
       Includes additional kernel metadata. In the OpenEmbedded build
       system, the default Board Support Packages (BSPs)
       :term:`Metadata` is provided through the
@@ -3948,7 +3948,7 @@
          KERNEL_FEATURES_append_qemux86 = " cfg/sound.scc cfg/paravirt_kvm.scc"
          KERNEL_FEATURES_append_qemux86-64 = "cfg/sound.scc"
 
-   KERNEL_FIT_LINK_NAME
+   :term:`KERNEL_FIT_LINK_NAME`
       The link name of the kernel flattened image tree (FIT) image. This
       variable is set in the ``meta/classes/kernel-artifact-names.bbclass``
       file as follows:
@@ -3966,7 +3966,7 @@
       See the :term:`MACHINE` variable for additional
       information.
 
-   KERNEL_FIT_NAME
+   :term:`KERNEL_FIT_NAME`
       The base name of the kernel flattened image tree (FIT) image. This
       variable is set in the ``meta/classes/kernel-artifact-names.bbclass``
       file as follows:
@@ -3980,7 +3980,7 @@
 
          KERNEL_ARTIFACT_NAME ?= "${PKGE}-${PKGV}-${PKGR}-${MACHINE}${IMAGE_VERSION_SUFFIX}"
 
-   KERNEL_IMAGE_LINK_NAME
+   :term:`KERNEL_IMAGE_LINK_NAME`
       The link name for the kernel image. This variable is set in the
       ``meta/classes/kernel-artifact-names.bbclass`` file as follows:
       ::
@@ -3997,7 +3997,7 @@
       See the :term:`MACHINE` variable for additional
       information.
 
-   KERNEL_IMAGE_MAXSIZE
+   :term:`KERNEL_IMAGE_MAXSIZE`
       Specifies the maximum size of the kernel image file in kilobytes. If
       ``KERNEL_IMAGE_MAXSIZE`` is set, the size of the kernel image file is
       checked against the set value during the
@@ -4010,7 +4010,7 @@
       By default, this variable is not set, which means the size of the
       kernel image is not checked.
 
-   KERNEL_IMAGE_NAME
+   :term:`KERNEL_IMAGE_NAME`
       The base name of the kernel image. This variable is set in the
       ``meta/classes/kernel-artifact-names.bbclass`` file as follows:
       ::
@@ -4024,7 +4024,7 @@
 
          KERNEL_ARTIFACT_NAME ?= "${PKGE}-${PKGV}-${PKGR}-${MACHINE}${IMAGE_VERSION_SUFFIX}"
 
-   KERNEL_IMAGETYPE
+   :term:`KERNEL_IMAGETYPE`
       The type of kernel to build for a device, usually set by the machine
       configuration files and defaults to "zImage". This variable is used
       when building the kernel and is passed to ``make`` as the target to
@@ -4033,7 +4033,7 @@
       If you want to build an alternate kernel image type, use the
       :term:`KERNEL_ALT_IMAGETYPE` variable.
 
-   KERNEL_MODULE_AUTOLOAD
+   :term:`KERNEL_MODULE_AUTOLOAD`
       Lists kernel modules that need to be auto-loaded during boot.
 
       .. note::
@@ -4065,14 +4065,14 @@
       For information on how to populate the ``modname.conf`` file with
       ``modprobe.d`` syntax lines, see the :term:`KERNEL_MODULE_PROBECONF` variable.
 
-   KERNEL_MODULE_PROBECONF
+   :term:`KERNEL_MODULE_PROBECONF`
       Provides a list of modules for which the OpenEmbedded build system
       expects to find ``module_conf_``\ modname values that specify
       configuration for each of the modules. For information on how to
       provide those module configurations, see the
       :term:`module_conf_* <module_conf>` variable.
 
-   KERNEL_PATH
+   :term:`KERNEL_PATH`
       The location of the kernel sources. This variable is set to the value
       of the :term:`STAGING_KERNEL_DIR` within
       the :ref:`module <ref-classes-module>` class. For information on
@@ -4086,7 +4086,7 @@
       the ``KERNEL_PATH`` variable. Both variables are common variables
       used by external Makefiles to point to the kernel source directory.
 
-   KERNEL_SRC
+   :term:`KERNEL_SRC`
       The location of the kernel sources. This variable is set to the value
       of the :term:`STAGING_KERNEL_DIR` within
       the :ref:`module <ref-classes-module>` class. For information on
@@ -4100,14 +4100,14 @@
       to the ``KERNEL_SRC`` variable. Both variables are common variables
       used by external Makefiles to point to the kernel source directory.
 
-   KERNEL_VERSION
+   :term:`KERNEL_VERSION`
       Specifies the version of the kernel as extracted from ``version.h``
       or ``utsrelease.h`` within the kernel sources. Effects of setting
       this variable do not take affect until the kernel has been
       configured. Consequently, attempting to refer to this variable in
       contexts prior to configuration will not work.
 
-   KERNELDEPMODDEPEND
+   :term:`KERNELDEPMODDEPEND`
       Specifies whether the data referenced through
       :term:`PKGDATA_DIR` is needed or not. The
       ``KERNELDEPMODDEPEND`` does not control whether or not that data
@@ -4116,7 +4116,7 @@
       ``initramfs`` recipe. Setting the variable there when the data is not
       needed avoids a potential dependency loop.
 
-   KFEATURE_DESCRIPTION
+   :term:`KFEATURE_DESCRIPTION`
       Provides a short description of a configuration fragment. You use
       this variable in the ``.scc`` file that describes a configuration
       fragment file. Here is the variable used in a file named ``smp.scc``
@@ -4125,7 +4125,7 @@
 
           define KFEATURE_DESCRIPTION "Enable SMP"
 
-   KMACHINE
+   :term:`KMACHINE`
       The machine as known by the kernel. Sometimes the machine name used
       by the kernel does not match the machine name used by the
       OpenEmbedded build system. For example, the machine name that the
@@ -4153,7 +4153,7 @@
       However, the OpenEmbedded build system understands the machine as
       "core2-32-intel-common".
 
-   KTYPE
+   :term:`KTYPE`
       Defines the kernel type to be used in assembling the configuration.
       The linux-yocto recipes define "standard", "tiny", and "preempt-rt"
       kernel types. See the ":ref:`kernel-dev/kernel-dev-advanced:kernel types`"
@@ -4167,13 +4167,13 @@
       :term:`LINUX_KERNEL_TYPE` value used by the
       kernel recipe.
 
-   LABELS
+   :term:`LABELS`
       Provides a list of targets for automatic configuration.
 
       See the :ref:`grub-efi <ref-classes-grub-efi>` class for more
       information on how this variable is used.
 
-   LAYERDEPENDS
+   :term:`LAYERDEPENDS`
       Lists the layers, separated by spaces, on which this recipe depends.
       Optionally, you can specify a specific layer version for a dependency
       by adding it to the end of the layer name. Here is an example:
@@ -4190,13 +4190,13 @@
       the ``conf/layer.conf`` file and must be suffixed with the name of
       the specific layer (e.g. ``LAYERDEPENDS_mylayer``).
 
-   LAYERDIR
+   :term:`LAYERDIR`
       When used inside the ``layer.conf`` configuration file, this variable
       provides the path of the current layer. This variable is not
       available outside of ``layer.conf`` and references are expanded
       immediately when parsing of the file completes.
 
-   LAYERRECOMMENDS
+   :term:`LAYERRECOMMENDS`
       Lists the layers, separated by spaces, recommended for use with this
       layer.
 
@@ -4214,7 +4214,7 @@
       suffixed with the name of the specific layer (e.g.
       ``LAYERRECOMMENDS_mylayer``).
 
-   LAYERSERIES_COMPAT
+   :term:`LAYERSERIES_COMPAT`
       Lists the versions of the :term:`OpenEmbedded-Core (OE-Core)` for which
       a layer is compatible. Using the ``LAYERSERIES_COMPAT`` variable
       allows the layer maintainer to indicate which combinations of the
@@ -4243,7 +4243,7 @@
       See the ":ref:`dev-manual/dev-manual-common-tasks:creating your own layer`"
       section in the Yocto Project Development Tasks Manual.
 
-   LAYERVERSION
+   :term:`LAYERVERSION`
       Optionally specifies the version of a layer as a single number. You
       can use this within :term:`LAYERDEPENDS` for
       another layer in order to depend on a specific version of the layer.
@@ -4251,10 +4251,10 @@
       suffixed with the name of the specific layer (e.g.
       ``LAYERVERSION_mylayer``).
 
-   LD
+   :term:`LD`
       The minimal command and arguments used to run the linker.
 
-   LDFLAGS
+   :term:`LDFLAGS`
       Specifies the flags to pass to the linker. This variable is exported
       to an environment variable and thus made visible to the software
       being built during the compilation step.
@@ -4271,14 +4271,14 @@
       -  :term:`BUILDSDK_LDFLAGS` when building for
          an SDK (i.e. ``nativesdk-``)
 
-   LEAD_SONAME
+   :term:`LEAD_SONAME`
       Specifies the lead (or primary) compiled library file (i.e. ``.so``)
       that the :ref:`debian <ref-classes-debian>` class applies its
       naming policy to given a recipe that packages multiple libraries.
 
       This variable works in conjunction with the ``debian`` class.
 
-   LIC_FILES_CHKSUM
+   :term:`LIC_FILES_CHKSUM`
       Checksums of the license text in the recipe source code.
 
       This variable tracks changes in license text of the source code
@@ -4292,7 +4292,7 @@
       For more information, see the ":ref:`usingpoky-configuring-lic_files_chksum`"
       section in the Yocto Project Development Tasks Manual.
 
-   LICENSE
+   :term:`LICENSE`
       The list of source licenses for the recipe. Follow these rules:
 
       -  Do not use spaces within individual license names.
@@ -4335,7 +4335,7 @@
          LICENSE_${PN} = "GPLv2"
          LICENSE_${PN}-doc = "GFDL-1.2"
 
-   LICENSE_CREATE_PACKAGE
+   :term:`LICENSE_CREATE_PACKAGE`
       Setting ``LICENSE_CREATE_PACKAGE`` to "1" causes the OpenEmbedded
       build system to create an extra package (i.e.
       ``${``\ :term:`PN`\ ``}-lic``) for each recipe and to add
@@ -4358,7 +4358,7 @@
       ":ref:`dev-manual/dev-manual-common-tasks:providing license text`"
       section in the Yocto Project Development Tasks Manual.
 
-   LICENSE_FLAGS
+   :term:`LICENSE_FLAGS`
       Specifies additional flags for a recipe you must whitelist through
       :term:`LICENSE_FLAGS_WHITELIST` in
       order to allow the recipe to be built. When providing multiple flags,
@@ -4371,7 +4371,7 @@
       ":ref:`dev-manual/dev-manual-common-tasks:enabling commercially licensed recipes`"
       section in the Yocto Project Development Tasks Manual.
 
-   LICENSE_FLAGS_WHITELIST
+   :term:`LICENSE_FLAGS_WHITELIST`
       Lists license flags that when specified in
       :term:`LICENSE_FLAGS` within a recipe should not
       prevent that recipe from being built. This practice is otherwise
@@ -4379,7 +4379,7 @@
       ":ref:`dev-manual/dev-manual-common-tasks:enabling commercially licensed recipes`"
       section in the Yocto Project Development Tasks Manual.
 
-   LICENSE_PATH
+   :term:`LICENSE_PATH`
       Path to additional licenses used during the build. By default, the
       OpenEmbedded build system uses ``COMMON_LICENSE_DIR`` to define the
       directory that holds common license text used during the build. The
@@ -4389,7 +4389,7 @@
 
          LICENSE_PATH += "path-to-additional-common-licenses"
 
-   LINUX_KERNEL_TYPE
+   :term:`LINUX_KERNEL_TYPE`
       Defines the kernel type to be used in assembling the configuration.
       The linux-yocto recipes define "standard", "tiny", and "preempt-rt"
       kernel types. See the ":ref:`kernel-dev/kernel-dev-advanced:kernel types`"
@@ -4404,7 +4404,7 @@
       kernel :term:`Metadata` with which to build out the sources
       and configuration.
 
-   LINUX_VERSION
+   :term:`LINUX_VERSION`
       The Linux version from ``kernel.org`` on which the Linux kernel image
       being built using the OpenEmbedded build system is based. You define
       this variable in the kernel recipe. For example, the
@@ -4420,7 +4420,7 @@
 
          PV = "${LINUX_VERSION}+git${SRCPV}"
 
-   LINUX_VERSION_EXTENSION
+   :term:`LINUX_VERSION_EXTENSION`
       A string extension compiled into the version string of the Linux
       kernel built with the OpenEmbedded build system. You define this
       variable in the kernel recipe. For example, the linux-yocto kernel
@@ -4438,14 +4438,14 @@
          $ uname -r
          3.7.0-rc8-custom
 
-   LOG_DIR
+   :term:`LOG_DIR`
       Specifies the directory to which the OpenEmbedded build system writes
       overall log files. The default directory is ``${TMPDIR}/log``.
 
       For the directory containing logs specific to each task, see the
       :term:`T` variable.
 
-   MACHINE
+   :term:`MACHINE`
       Specifies the target device for which the image is built. You define
       ``MACHINE`` in the ``local.conf`` file found in the
       :term:`Build Directory`. By default, ``MACHINE`` is set to
@@ -4488,13 +4488,13 @@
          MACHINE
          .
 
-   MACHINE_ARCH
+   :term:`MACHINE_ARCH`
       Specifies the name of the machine-specific architecture. This
       variable is set automatically from :term:`MACHINE` or
       :term:`TUNE_PKGARCH`. You should not hand-edit
       the ``MACHINE_ARCH`` variable.
 
-   MACHINE_ESSENTIAL_EXTRA_RDEPENDS
+   :term:`MACHINE_ESSENTIAL_EXTRA_RDEPENDS`
       A list of required machine-specific packages to install as part of
       the image being built. The build process depends on these packages
       being present. Furthermore, because this is a "machine-essential"
@@ -4517,7 +4517,7 @@
 
          MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "example-init"
 
-   MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS
+   :term:`MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS`
       A list of recommended machine-specific packages to install as part of
       the image being built. The build process does not depend on these
       packages being present. However, because this is a
@@ -4562,7 +4562,7 @@
       Some examples of these machine essentials are flash, screen,
       keyboard, mouse, or touchscreen drivers (depending on the machine).
 
-   MACHINE_EXTRA_RDEPENDS
+   :term:`MACHINE_EXTRA_RDEPENDS`
       A list of machine-specific packages to install as part of the image
       being built that are not essential for the machine to boot. However,
       the build process for more fully-featured images depends on the
@@ -4589,7 +4589,7 @@
 
          MACHINE_EXTRA_RDEPENDS += "wifidriver-firmware"
 
-   MACHINE_EXTRA_RRECOMMENDS
+   :term:`MACHINE_EXTRA_RRECOMMENDS`
       A list of machine-specific packages to install as part of the image
       being built that are not essential for booting the machine. The image
       being built has no build dependency on this list of packages.
@@ -4616,7 +4616,7 @@
 
          MACHINE_EXTRA_RRECOMMENDS += "kernel-module-examplewifi"
 
-   MACHINE_FEATURES
+   :term:`MACHINE_FEATURES`
       Specifies the list of hardware features the
       :term:`MACHINE` is capable of supporting. For related
       information on enabling features, see the
@@ -4628,7 +4628,7 @@
       shipped, see the "`Machine Features <#ref-features-machine>`__"
       section.
 
-   MACHINE_FEATURES_BACKFILL
+   :term:`MACHINE_FEATURES_BACKFILL`
       Features to be added to ``MACHINE_FEATURES`` if not also present in
       ``MACHINE_FEATURES_BACKFILL_CONSIDERED``.
 
@@ -4639,13 +4639,13 @@
       Backfilling <#ref-features-backfill>`__" section for more
       information.
 
-   MACHINE_FEATURES_BACKFILL_CONSIDERED
+   :term:`MACHINE_FEATURES_BACKFILL_CONSIDERED`
       Features from ``MACHINE_FEATURES_BACKFILL`` that should not be
       backfilled (i.e. added to ``MACHINE_FEATURES``) during the build. See
       the "`Feature Backfilling <#ref-features-backfill>`__" section for
       more information.
 
-   MACHINEOVERRIDES
+   :term:`MACHINEOVERRIDES`
       A colon-separated list of overrides that apply to the current
       machine. By default, this list includes the value of
       :term:`MACHINE`.
@@ -4673,10 +4673,10 @@
       ``MACHINEOVERRIDES`` is simply that it is included in the default
       value of :term:`OVERRIDES`.
 
-   MAINTAINER
+   :term:`MAINTAINER`
       The email address of the distribution maintainer.
 
-   MIRRORS
+   :term:`MIRRORS`
       Specifies additional paths from which the OpenEmbedded build system
       gets source code. When the build system searches for source code, it
       first tries the local download directory. If that location fails, the
@@ -4688,7 +4688,7 @@
       the default value for ``MIRRORS`` is defined in the
       ``conf/distro/poky.conf`` file in the ``meta-poky`` Git repository.
 
-   MLPREFIX
+   :term:`MLPREFIX`
       Specifies a prefix has been added to :term:`PN` to create a
       special version of a recipe or package (i.e. a Multilib version). The
       variable is used in places where the prefix needs to be added to or
@@ -4775,12 +4775,12 @@
       For information on how to specify kernel modules to auto-load on
       boot, see the :term:`KERNEL_MODULE_AUTOLOAD` variable.
 
-   MODULE_TARBALL_DEPLOY
+   :term:`MODULE_TARBALL_DEPLOY`
       Controls creation of the ``modules-*.tgz`` file. Set this variable to
       "0" to disable creation of this file, which contains all of the
       kernel modules resulting from a kernel build.
 
-   MODULE_TARBALL_LINK_NAME
+   :term:`MODULE_TARBALL_LINK_NAME`
       The link name of the kernel module tarball. This variable is set in
       the ``meta/classes/kernel-artifact-names.bbclass`` file as follows:
       ::
@@ -4796,7 +4796,7 @@
 
       See the :term:`MACHINE` variable for additional information.
 
-   MODULE_TARBALL_NAME
+   :term:`MODULE_TARBALL_NAME`
       The base name of the kernel module tarball. This variable is set in
       the ``meta/classes/kernel-artifact-names.bbclass`` file as follows:
       ::
@@ -4809,7 +4809,7 @@
 
          KERNEL_ARTIFACT_NAME ?= "${PKGE}-${PKGV}-${PKGR}-${MACHINE}${IMAGE_VERSION_SUFFIX}"
 
-   MULTIMACH_TARGET_SYS
+   :term:`MULTIMACH_TARGET_SYS`
       Uniquely identifies the type of the target system for which packages
       are being built. This variable allows output for different types of
       target systems to be put into different subdirectories of the same
@@ -4827,7 +4827,7 @@
       See the :term:`STAMP` variable for an example. See the
       :term:`STAGING_DIR_TARGET` variable for more information.
 
-   NATIVELSBSTRING
+   :term:`NATIVELSBSTRING`
       A string identifying the host distribution. Strings consist of the
       host distributor ID followed by the release, as reported by the
       ``lsb_release`` tool or as read from ``/etc/lsb-release``. For
@@ -4842,10 +4842,10 @@
       :term:`SANITY_TESTED_DISTROS` if that
       variable is set.
 
-   NM
+   :term:`NM`
       The minimal command and arguments to run ``nm``.
 
-   NO_GENERIC_LICENSE
+   :term:`NO_GENERIC_LICENSE`
       Avoids QA errors when you use a non-common, non-CLOSED license in a
       recipe. Packages exist, such as the linux-firmware package, with many
       licenses that are not in any way common. Also, new licenses are added
@@ -4867,7 +4867,7 @@
 
          NO_GENERIC_LICENSE[Firmware-Abilis] = "LICENSE.Abilis.txt"
 
-   NO_RECOMMENDATIONS
+   :term:`NO_RECOMMENDATIONS`
       Prevents installation of all "recommended-only" packages.
       Recommended-only packages are packages installed only through the
       :term:`RRECOMMENDS` variable). Setting the
@@ -4900,7 +4900,7 @@
       the :term:`PACKAGE_EXCLUDE` variables for
       related information.
 
-   NOAUTOPACKAGEDEBUG
+   :term:`NOAUTOPACKAGEDEBUG`
       Disables auto package from splitting ``.debug`` files. If a recipe
       requires ``FILES_${PN}-dbg`` to be set manually, the
       ``NOAUTOPACKAGEDEBUG`` can be defined allowing you to define the
@@ -4912,13 +4912,13 @@
          FILES_${PN}-dbg = "/usr/src/debug/"
          FILES_${QT_BASE_NAME}-demos-doc = "${docdir}/${QT_DIR_NAME}/qch/qt.qch"
 
-   OBJCOPY
+   :term:`OBJCOPY`
       The minimal command and arguments to run ``objcopy``.
 
-   OBJDUMP
+   :term:`OBJDUMP`
       The minimal command and arguments to run ``objdump``.
 
-   OE_BINCONFIG_EXTRA_MANGLE
+   :term:`OE_BINCONFIG_EXTRA_MANGLE`
       When inheriting the :ref:`binconfig <ref-classes-binconfig>` class,
       this variable specifies additional arguments passed to the "sed"
       command. The sed command alters any paths in configuration scripts
@@ -4933,7 +4933,7 @@
       information on the ``binconfig`` class, see the
       ":ref:`binconfig.bbclass <ref-classes-binconfig>`" section.
 
-   OE_IMPORTS
+   :term:`OE_IMPORTS`
       An internal variable used to tell the OpenEmbedded build system what
       Python modules to import for every Python function run by the system.
 
@@ -4941,7 +4941,7 @@
 
          Do not set this variable. It is for internal use only.
 
-   OE_INIT_ENV_SCRIPT
+   :term:`OE_INIT_ENV_SCRIPT`
       The name of the build environment setup script for the purposes of
       setting up the environment within the extensible SDK. The default
       value is "oe-init-build-env".
@@ -4949,7 +4949,7 @@
       If you use a custom script to set up your build environment, set the
       ``OE_INIT_ENV_SCRIPT`` variable to its name.
 
-   OE_TERMINAL
+   :term:`OE_TERMINAL`
       Controls how the OpenEmbedded build system spawns interactive
       terminals on the host development system (e.g. using the BitBake
       command with the ``-c devshell`` command-line option). For more
@@ -4966,7 +4966,7 @@
       - konsole
       - none
 
-   OEROOT
+   :term:`OEROOT`
       The directory from which the top-level build environment setup script
       is sourced. The Yocto Project provides a top-level build environment
       setup script: ````` <#structure-core-script>`__. When you run this
@@ -4976,7 +4976,7 @@
       For additional information on how this variable is used, see the
       initialization script.
 
-   OLDEST_KERNEL
+   :term:`OLDEST_KERNEL`
       Declares the oldest version of the Linux kernel that the produced
       binaries must support. This variable is passed into the build of the
       Embedded GNU C Library (``glibc``).
@@ -4986,7 +4986,7 @@
       default by setting the variable in a custom distribution
       configuration file.
 
-   OVERRIDES
+   :term:`OVERRIDES`
       A colon-separated list of overrides that currently apply. Overrides
       are a BitBake mechanism that allows variables to be selectively
       overridden at the end of parsing. The set of overrides in
@@ -5029,13 +5029,13 @@
          " section in the Yocto Project Development Tasks Manual for more
          information.
 
-   P
+   :term:`P`
       The recipe name and version. ``P`` is comprised of the following:
       ::
 
          ${PN}-${PV}
 
-   PACKAGE_ADD_METADATA
+   :term:`PACKAGE_ADD_METADATA`
       This variable defines additional metdata to add to packages.
 
       You may find you need to inject additional metadata into packages.
@@ -5051,7 +5051,7 @@
       ":ref:`dev-manual/dev-manual-common-tasks:adding custom metadata to packages`"
       section in the Yocto Project Development Tasks Manual.
 
-   PACKAGE_ARCH
+   :term:`PACKAGE_ARCH`
       The architecture of the resulting package or packages.
 
       By default, the value of this variable is set to
@@ -5074,19 +5074,19 @@
 
          PACKAGE_ARCH = "${MACHINE_ARCH}"
 
-   PACKAGE_ARCHS
+   :term:`PACKAGE_ARCHS`
       Specifies a list of architectures compatible with the target machine.
       This variable is set automatically and should not normally be
       hand-edited. Entries are separated using spaces and listed in order
       of priority. The default value for ``PACKAGE_ARCHS`` is "all any
       noarch ${PACKAGE_EXTRA_ARCHS} ${MACHINE_ARCH}".
 
-   PACKAGE_BEFORE_PN
+   :term:`PACKAGE_BEFORE_PN`
       Enables easily adding packages to ``PACKAGES`` before ``${PN}`` so
       that those added packages can pick up files that would normally be
       included in the default package.
 
-   PACKAGE_CLASSES
+   :term:`PACKAGE_CLASSES`
       This variable, which is set in the ``local.conf`` configuration file
       found in the ``conf`` folder of the
       :term:`Build Directory`, specifies the package manager the
@@ -5119,7 +5119,7 @@
       result of the package manager in use, see the
       ":ref:`package.bbclass <ref-classes-package>`" section.
 
-   PACKAGE_DEBUG_SPLIT_STYLE
+   :term:`PACKAGE_DEBUG_SPLIT_STYLE`
       Determines how to split up the binary and debug information when
       creating ``*-dbg`` packages to be used with the GNU Project Debugger
       (GDB).
@@ -5152,7 +5152,7 @@
       ":ref:`platdev-gdb-remotedebug`" section
       in the Yocto Project Development Tasks Manual.
 
-   PACKAGE_EXCLUDE_COMPLEMENTARY
+   :term:`PACKAGE_EXCLUDE_COMPLEMENTARY`
       Prevents specific packages from being installed when you are
       installing complementary packages.
 
@@ -5164,7 +5164,7 @@
       use the ``PACKAGE_EXCLUDE_COMPLEMENTARY`` variable to specify regular
       expressions to match the packages you want to exclude.
 
-   PACKAGE_EXCLUDE
+   :term:`PACKAGE_EXCLUDE`
       Lists packages that should not be installed into an image. For
       example:
       ::
@@ -5193,12 +5193,12 @@
       :term:`BAD_RECOMMENDATIONS` variables for
       related information.
 
-   PACKAGE_EXTRA_ARCHS
+   :term:`PACKAGE_EXTRA_ARCHS`
       Specifies the list of architectures compatible with the device CPU.
       This variable is useful when you build for several different devices
       that use miscellaneous processors such as XScale and ARM926-EJS.
 
-   PACKAGE_FEED_ARCHS
+   :term:`PACKAGE_FEED_ARCHS`
       Optionally specifies the package architectures used as part of the
       package feed URIs during the build. When used, the
       ``PACKAGE_FEED_ARCHS`` variable is appended to the final package feed
@@ -5239,7 +5239,7 @@
          https://example.com/packagerepos/updates/rpm-dev/all
          https://example.com/packagerepos/updates/rpm-dev/core2-64
 
-   PACKAGE_FEED_BASE_PATHS
+   :term:`PACKAGE_FEED_BASE_PATHS`
       Specifies the base path used when constructing package feed URIs. The
       ``PACKAGE_FEED_BASE_PATHS`` variable makes up the middle portion of a
       package feed URI used by the OpenEmbedded build system. The base path
@@ -5268,7 +5268,7 @@
          https://example.com/packagerepos/updates/rpm-dev/all
          https://example.com/packagerepos/updates/rpm-dev/core2-64
 
-   PACKAGE_FEED_URIS
+   :term:`PACKAGE_FEED_URIS`
       Specifies the front portion of the package feed URI used by the
       OpenEmbedded build system. Each final package feed URI is comprised
       of ``PACKAGE_FEED_URIS``,
@@ -5297,7 +5297,7 @@
          https://example.com/packagerepos/updates/rpm-dev/all
          https://example.com/packagerepos/updates/rpm-dev/core2-64
 
-   PACKAGE_INSTALL
+   :term:`PACKAGE_INSTALL`
       The final list of packages passed to the package manager for
       installation into the image.
 
@@ -5315,18 +5315,18 @@
       initramfs, see the ":ref:`building-an-initramfs-image`" section
       in the Yocto Project Development Tasks Manual.
 
-   PACKAGE_INSTALL_ATTEMPTONLY
+   :term:`PACKAGE_INSTALL_ATTEMPTONLY`
       Specifies a list of packages the OpenEmbedded build system attempts
       to install when creating an image. If a listed package fails to
       install, the build system does not generate an error. This variable
       is generally not user-defined.
 
-   PACKAGE_PREPROCESS_FUNCS
+   :term:`PACKAGE_PREPROCESS_FUNCS`
       Specifies a list of functions run to pre-process the
       :term:`PKGD` directory prior to splitting the files out
       to individual packages.
 
-   PACKAGE_WRITE_DEPS
+   :term:`PACKAGE_WRITE_DEPS`
       Specifies a list of dependencies for post-installation and
       pre-installation scripts on native/cross tools. If your
       post-installation or pre-installation script can execute at rootfs
@@ -5338,7 +5338,7 @@
       ":ref:`dev-manual/dev-manual-common-tasks:post-installation scripts`"
       section in the Yocto Project Development Tasks Manual.
 
-   PACKAGECONFIG
+   :term:`PACKAGECONFIG`
       This variable provides a means of enabling or disabling features of a
       recipe on a per-recipe basis. ``PACKAGECONFIG`` blocks are defined in
       recipes when you specify features and then arguments that define
@@ -5430,7 +5430,7 @@
 
             PACKAGECONFIG_append_pn-recipename = " f4"
 
-   PACKAGECONFIG_CONFARGS
+   :term:`PACKAGECONFIG_CONFARGS`
       A space-separated list of configuration options generated from the
       :term:`PACKAGECONFIG` setting.
 
@@ -5441,7 +5441,7 @@
       handles the ``do_configure`` task, then you need to use
       ``PACKAGECONFIG_CONFARGS`` appropriately.
 
-   PACKAGEGROUP_DISABLE_COMPLEMENTARY
+   :term:`PACKAGEGROUP_DISABLE_COMPLEMENTARY`
       For recipes inheriting the
       :ref:`packagegroup <ref-classes-packagegroup>` class, setting
       ``PACKAGEGROUP_DISABLE_COMPLEMENTARY`` to "1" specifies that the
@@ -5449,7 +5449,7 @@
       should not be automatically created by the ``packagegroup`` recipe,
       which is the default behavior.
 
-   PACKAGES
+   :term:`PACKAGES`
       The list of packages the recipe creates. The default value is the
       following:
       ::
@@ -5469,7 +5469,7 @@
       unless generation is forced through the
       :term:`ALLOW_EMPTY` variable.
 
-   PACKAGES_DYNAMIC
+   :term:`PACKAGES_DYNAMIC`
       A promise that your recipe satisfies runtime dependencies for
       optional modules that are found in other recipes.
       ``PACKAGES_DYNAMIC`` does not actually satisfy the dependencies, it
@@ -5492,7 +5492,7 @@
       ":ref:`dev-manual/dev-manual-common-tasks:handling optional module packaging`"
       section in the Yocto Project Development Tasks Manual.
 
-   PACKAGESPLITFUNCS
+   :term:`PACKAGESPLITFUNCS`
       Specifies a list of functions run to perform additional splitting of
       files into individual packages. Recipes can either prepend to this
       variable or prepend to the ``populate_packages`` function in order to
@@ -5502,7 +5502,7 @@
       other packaging variables appropriately in order to perform the
       desired splitting.
 
-   PARALLEL_MAKE
+   :term:`PARALLEL_MAKE`
       Extra options passed to the ``make`` command during the
       :ref:`ref-tasks-compile` task in order to specify
       parallel compilation on the local build host. This variable is
@@ -5548,7 +5548,7 @@
       ":ref:`dev-manual/dev-manual-common-tasks:speeding up a build`"
       section in the Yocto Project Development Tasks Manual.
 
-   PARALLEL_MAKEINST
+   :term:`PARALLEL_MAKEINST`
       Extra options passed to the ``make install`` command during the
       :ref:`ref-tasks-install` task in order to specify
       parallel installation. This variable defaults to the value of
@@ -5568,7 +5568,7 @@
          ":ref:`dev-manual/dev-manual-common-tasks:debugging parallel make races`"
          section in the Yocto Project Development Tasks Manual.
 
-   PATCHRESOLVE
+   :term:`PATCHRESOLVE`
       Determines the action to take when a patch fails. You can set this
       variable to one of two values: "noop" and "user".
 
@@ -5580,7 +5580,7 @@
 
       Set this variable in your ``local.conf`` file.
 
-   PATCHTOOL
+   :term:`PATCHTOOL`
       Specifies the utility used to apply patches for a recipe during the
       :ref:`ref-tasks-patch` task. You can specify one of
       three utilities: "patch", "quilt", or "git". The default utility used
@@ -5596,20 +5596,20 @@
          PATCHTOOL = "quilt"
          PATCHTOOL = "git"
 
-   PE
+   :term:`PE`
       The epoch of the recipe. By default, this variable is unset. The
       variable is used to make upgrades possible when the versioning scheme
       changes in some backwards incompatible way.
 
       ``PE`` is the default value of the :term:`PKGE` variable.
 
-   PF
+   :term:`PF`
       Specifies the recipe or package name and includes all version and
       revision numbers (i.e. ``glibc-2.13-r20+svnr15508/`` and
       ``bash-4.2-r1/``). This variable is comprised of the following:
       ${:term:`PN`}-${:term:`EXTENDPE`}${:term:`PV`}-${:term:`PR`}
 
-   PIXBUF_PACKAGES
+   :term:`PIXBUF_PACKAGES`
       When inheriting the :ref:`pixbufcache <ref-classes-pixbufcache>`
       class, this variable identifies packages that contain the pixbuf
       loaders used with ``gdk-pixbuf``. By default, the ``pixbufcache``
@@ -5617,7 +5617,7 @@
       ``${``\ :term:`PN`\ ``}``). Use this variable if the
       loaders you need are in a package other than that main package.
 
-   PKG
+   :term:`PKG`
       The name of the resulting package created by the OpenEmbedded build
       system.
 
@@ -5631,11 +5631,11 @@
       renames the output package, it does so by setting
       ``PKG_packagename``.
 
-   PKG_CONFIG_PATH
+   :term:`PKG_CONFIG_PATH`
       The path to ``pkg-config`` files for the current build context.
       ``pkg-config`` reads this variable from the environment.
 
-   PKGD
+   :term:`PKGD`
       Points to the destination directory for files to be packaged before
       they are split into individual packages. This directory defaults to
       the following:
@@ -5645,7 +5645,7 @@
 
       Do not change this default.
 
-   PKGDATA_DIR
+   :term:`PKGDATA_DIR`
       Points to a shared, global-state directory that holds data generated
       during the packaging process. During the packaging process, the
       :ref:`ref-tasks-packagedata` task packages data
@@ -5664,7 +5664,7 @@
       information on the shared, global-state directory, see
       :term:`STAGING_DIR_HOST`.
 
-   PKGDEST
+   :term:`PKGDEST`
       Points to the parent directory for files to be packaged after they
       have been split into individual packages. This directory defaults to
       the following:
@@ -5676,7 +5676,7 @@
       package specified in :term:`PACKAGES`. Do not change
       this default.
 
-   PKGDESTWORK
+   :term:`PKGDESTWORK`
       Points to a temporary work area where the
       :ref:`ref-tasks-package` task saves package metadata.
       The ``PKGDESTWORK`` location defaults to the following:
@@ -5690,19 +5690,19 @@
       package metadata from ``PKGDESTWORK`` to
       :term:`PKGDATA_DIR` to make it available globally.
 
-   PKGE
+   :term:`PKGE`
       The epoch of the package(s) built by the recipe. By default, ``PKGE``
       is set to :term:`PE`.
 
-   PKGR
+   :term:`PKGR`
       The revision of the package(s) built by the recipe. By default,
       ``PKGR`` is set to :term:`PR`.
 
-   PKGV
+   :term:`PKGV`
       The version of the package(s) built by the recipe. By default,
       ``PKGV`` is set to :term:`PV`.
 
-   PN
+   :term:`PN`
       This variable can have two separate functions depending on the
       context: a recipe name or a resulting package name.
 
@@ -5721,7 +5721,7 @@
       packages for the target and for Multilib, ``PN`` would be ``bash``
       and ``lib64-bash``, respectively.
 
-   PNBLACKLIST
+   :term:`PNBLACKLIST`
       Lists recipes you do not want the OpenEmbedded build system to build.
       This variable works in conjunction with the
       :ref:`blacklist <ref-classes-blacklist>` class, which is inherited
@@ -5734,7 +5734,7 @@
 
          PNBLACKLIST[myrecipe] = "Not supported by our organization."
 
-   POPULATE_SDK_POST_HOST_COMMAND
+   :term:`POPULATE_SDK_POST_HOST_COMMAND`
       Specifies a list of functions to call once the OpenEmbedded build
       system has created the host part of the SDK. You can specify
       functions separated by semicolons:
@@ -5747,7 +5747,7 @@
       the OpenEmbedded build system when creating SDK output. See the
       :term:`SDK_DIR` variable for more information.
 
-   POPULATE_SDK_POST_TARGET_COMMAND
+   :term:`POPULATE_SDK_POST_TARGET_COMMAND`
       Specifies a list of functions to call once the OpenEmbedded build
       system has created the target part of the SDK. You can specify
       functions separated by semicolons:
@@ -5760,7 +5760,7 @@
       the OpenEmbedded build system when creating SDK output. See the
       :term:`SDK_DIR` variable for more information.
 
-   PR
+   :term:`PR`
       The revision of the recipe. The default value for this variable is
       "r0". Subsequent revisions of the recipe conventionally have the
       values "r1", "r2", and so forth. When :term:`PV` increases,
@@ -5799,7 +5799,7 @@
       ":ref:`dev-manual/dev-manual-common-tasks:working with a pr service`" section
       in the Yocto Project Development Tasks Manual for more information.
 
-   PREFERRED_PROVIDER
+   :term:`PREFERRED_PROVIDER`
       If multiple recipes provide the same item, this variable determines
       which recipe is preferred and thus provides the item (i.e. the
       preferred provider). You should always suffix this variable with the
@@ -5838,7 +5838,7 @@
          mechanism is designed to select between mutually exclusive
          alternative providers.
 
-   PREFERRED_VERSION
+   :term:`PREFERRED_VERSION`
       If multiple versions of recipes exist, this variable determines which
       version is given preference. You must always suffix the variable with
       the :term:`PN` you want to select, and you should set the
@@ -5900,7 +5900,7 @@
          The \_forcevariable override is not handled specially. This override
          only works because the default value of OVERRIDES includes "forcevariable".
 
-   PREMIRRORS
+   :term:`PREMIRRORS`
       Specifies additional paths from which the OpenEmbedded build system
       gets source code. When the build system searches for source code, it
       first tries the local download directory. If that location fails, the
@@ -5930,7 +5930,7 @@
       ``file://`` URLs to point to local directories or network shares as
       well.
 
-   PRIORITY
+   :term:`PRIORITY`
       Indicates the importance of a package.
 
       ``PRIORITY`` is considered to be part of the distribution policy
@@ -5941,7 +5941,7 @@
       You can set ``PRIORITY`` to "required", "standard", "extra", and
       "optional", which is the default.
 
-   PRIVATE_LIBS
+   :term:`PRIVATE_LIBS`
       Specifies libraries installed within a recipe that should be ignored
       by the OpenEmbedded build system's shared library resolver. This
       variable is typically used when software being built by a recipe has
@@ -5967,7 +5967,7 @@
       ":ref:`overview-manual/overview-manual-concepts:automatically added runtime dependencies`"
       section in the Yocto Project Overview and Concepts Manual.
 
-   PROVIDES
+   :term:`PROVIDES`
       A list of aliases by which a particular recipe can be known. By
       default, a recipe's own ``PN`` is implicitly already in its
       ``PROVIDES`` list and therefore does not need to mention that it
@@ -6030,7 +6030,7 @@
                  VIRTUAL-RUNTIME_dev_manager = "udev"
 
 
-   PRSERV_HOST
+   :term:`PRSERV_HOST`
       The network based :term:`PR` service host and port.
 
       The ``conf/local.conf.sample.extended`` configuration file in the
@@ -6045,7 +6045,7 @@
       service <dev-manual/dev-manual-common-tasks:working with a pr service>`. You can
       set ``PRSERV_HOST`` to other values to use a remote PR service.
 
-   PTEST_ENABLED
+   :term:`PTEST_ENABLED`
       Specifies whether or not :ref:`Package
       Test <dev-manual/dev-manual-common-tasks:testing packages with ptest>` (ptest)
       functionality is enabled when building a recipe. You should not set
@@ -6053,7 +6053,7 @@
       at build time should be done by adding "ptest" to (or removing it
       from) :term:`DISTRO_FEATURES`.
 
-   PV
+   :term:`PV`
       The version of the recipe. The version is normally extracted from the
       recipe filename. For example, if the recipe is named
       ``expat_2.0.1.bb``, then the default value of ``PV`` will be "2.0.1".
@@ -6063,7 +6063,7 @@
 
       ``PV`` is the default value of the :term:`PKGV` variable.
 
-   PYTHON_ABI
+   :term:`PYTHON_ABI`
       When used by recipes that inherit the
       :ref:`distutils3 <ref-classes-distutils3>`,
       :ref:`setuptools3 <ref-classes-setuptools3>`,
@@ -6081,7 +6081,7 @@
       use this variable to locate the headers and libraries of the
       appropriate Python that the extension is targeting.
 
-   PYTHON_PN
+   :term:`PYTHON_PN`
       When used by recipes that inherit the
       `distutils3 <ref-classes-distutils3>`,
       :ref:`setuptools3 <ref-classes-setuptools3>`,
@@ -6100,10 +6100,10 @@
       In the previous example,
       the version of the dependency is ``PYTHON_PN``.
 
-   RANLIB
+   :term:`RANLIB`
       The minimal command and arguments to run ``ranlib``.
 
-   RCONFLICTS
+   :term:`RCONFLICTS`
       The list of packages that conflict with packages. Note that packages
       will not be installed if conflicting packages are not first removed.
 
@@ -6129,7 +6129,7 @@
 
          RCONFLICTS_${PN} = "foo (>= 1.2)"
 
-   RDEPENDS
+   :term:`RDEPENDS`
       Lists runtime dependencies of a package. These dependencies are other
       packages that must be installed in order for the package to function
       correctly. As an example, the following assignment declares that the
@@ -6241,7 +6241,7 @@
       BitBake User Manual for additional information on tasks and
       dependencies.
 
-   REQUIRED_DISTRO_FEATURES
+   :term:`REQUIRED_DISTRO_FEATURES`
       When inheriting the
       :ref:`distro_features_check <ref-classes-distro_features_check>`
       class, this variable identifies distribution features that must exist
@@ -6251,13 +6251,13 @@
       appear in ``DISTRO_FEATURES`` within the current configuration, an
       error occurs and the build stops.
 
-   RM_WORK_EXCLUDE
+   :term:`RM_WORK_EXCLUDE`
       With ``rm_work`` enabled, this variable specifies a list of recipes
       whose work directories should not be removed. See the
       ":ref:`rm_work.bbclass <ref-classes-rm-work>`" section for more
       details.
 
-   ROOT_HOME
+   :term:`ROOT_HOME`
       Defines the root home directory. By default, this directory is set as
       follows in the BitBake configuration file:
       ::
@@ -6283,13 +6283,13 @@
       override examples use ``/root``, which is probably the most commonly
       used override.
 
-   ROOTFS
+   :term:`ROOTFS`
       Indicates a filesystem image to include as the root filesystem.
 
       The ``ROOTFS`` variable is an optional variable used with the
       :ref:`image-live <ref-classes-image-live>` class.
 
-   ROOTFS_POSTINSTALL_COMMAND
+   :term:`ROOTFS_POSTINSTALL_COMMAND`
       Specifies a list of functions to call after the OpenEmbedded build
       system has installed packages. You can specify functions separated by
       semicolons:
@@ -6303,7 +6303,7 @@
       :term:`IMAGE_ROOTFS` variable for more
       information.
 
-   ROOTFS_POSTPROCESS_COMMAND
+   :term:`ROOTFS_POSTPROCESS_COMMAND`
       Specifies a list of functions to call once the OpenEmbedded build
       system has created the root filesystem. You can specify functions
       separated by semicolons:
@@ -6317,7 +6317,7 @@
       :term:`IMAGE_ROOTFS` variable for more
       information.
 
-   ROOTFS_POSTUNINSTALL_COMMAND
+   :term:`ROOTFS_POSTUNINSTALL_COMMAND`
       Specifies a list of functions to call after the OpenEmbedded build
       system has removed unnecessary packages. When runtime package
       management is disabled in the image, several packages are removed
@@ -6333,7 +6333,7 @@
       :term:`IMAGE_ROOTFS` variable for more
       information.
 
-   ROOTFS_PREPROCESS_COMMAND
+   :term:`ROOTFS_PREPROCESS_COMMAND`
       Specifies a list of functions to call before the OpenEmbedded build
       system has created the root filesystem. You can specify functions
       separated by semicolons:
@@ -6347,7 +6347,7 @@
       :term:`IMAGE_ROOTFS` variable for more
       information.
 
-   RPROVIDES
+   :term:`RPROVIDES`
       A list of package name aliases that a package also provides. These
       aliases are useful for satisfying runtime dependencies of other
       packages both during the build and on the target (as specified by
@@ -6366,7 +6366,7 @@
 
          RPROVIDES_${PN} = "widget-abi-2"
 
-   RRECOMMENDS
+   :term:`RRECOMMENDS`
       A list of packages that extends the usability of a package being
       built. The package being built does not depend on this list of
       packages in order to successfully build, but rather uses them for
@@ -6426,7 +6426,7 @@
 
          RRECOMMENDS_${PN} = "foo (>= 1.2)"
 
-   RREPLACES
+   :term:`RREPLACES`
       A list of packages replaced by a package. The package manager uses
       this variable to determine which package should be installed to
       replace other package(s) during an upgrade. In order to also have the
@@ -6462,7 +6462,7 @@
 
           RREPLACES_${PN} = "foo (>= 1.2)"
 
-   RSUGGESTS
+   :term:`RSUGGESTS`
       A list of additional packages that you can suggest for installation
       by the package manager at the time a package is installed. Not all
       package managers support this functionality.
@@ -6474,7 +6474,7 @@
 
          RSUGGESTS_${PN} = "useful_package another_package"
 
-   S
+   :term:`S`
       The location in the :term:`Build Directory` where
       unpacked recipe source code resides. By default, this directory is
       ``${``\ :term:`WORKDIR`\ ``}/${``\ :term:`BPN`\ ``}-${``\ :term:`PV`\ ``}``,
@@ -6505,13 +6505,13 @@
          SRC_URI = "git://path/to/repo.git"
          S = "${WORKDIR}/git"
 
-   SANITY_REQUIRED_UTILITIES
+   :term:`SANITY_REQUIRED_UTILITIES`
       Specifies a list of command-line utilities that should be checked for
       during the initial sanity checking process when running BitBake. If
       any of the utilities are not installed on the build host, then
       BitBake immediately exits with an error.
 
-   SANITY_TESTED_DISTROS
+   :term:`SANITY_TESTED_DISTROS`
       A list of the host distribution identifiers that the build system has
       been tested against. Identifiers consist of the host distributor ID
       followed by the release, as reported by the ``lsb_release`` tool or
@@ -6522,11 +6522,11 @@
       list, then the build system reports a warning that indicates the
       current host distribution has not been tested as a build host.
 
-   SDK_ARCH
+   :term:`SDK_ARCH`
       The target architecture for the SDK. Typically, you do not directly
       set this variable. Instead, use :term:`SDKMACHINE`.
 
-   SDK_DEPLOY
+   :term:`SDK_DEPLOY`
       The directory set up and used by the
       :ref:`populate_sdk_base <ref-classes-populate-sdk>` class to which
       the SDK is deployed. The ``populate_sdk_base`` class defines
@@ -6535,7 +6535,7 @@
 
          SDK_DEPLOY = "${TMPDIR}/deploy/sdk"
 
-   SDK_DIR
+   :term:`SDK_DIR`
       The parent directory used by the OpenEmbedded build system when
       creating SDK output. The
       :ref:`populate_sdk_base <ref-classes-populate-sdk-*>` class defines
@@ -6554,7 +6554,7 @@
          SDK_DEPLOY
          .
 
-   SDK_EXT_TYPE
+   :term:`SDK_EXT_TYPE`
       Controls whether or not shared state artifacts are copied into the
       extensible SDK. The default value of "full" copies all of the
       required shared state artifacts into the extensible SDK. The value
@@ -6567,7 +6567,7 @@
          is set in the SDK's configuration to enable the artifacts to be
          fetched as needed.
 
-   SDK_HOST_MANIFEST
+   :term:`SDK_HOST_MANIFEST`
       The manifest file for the host part of the SDK. This file lists all
       the installed packages that make up the host part of the SDK. The
       file contains package information on a line-per-package basis as
@@ -6585,7 +6585,7 @@
       The location is derived using the :term:`SDK_DEPLOY` and
       :term:`TOOLCHAIN_OUTPUTNAME` variables.
 
-   SDK_INCLUDE_PKGDATA
+   :term:`SDK_INCLUDE_PKGDATA`
       When set to "1", specifies to include the packagedata for all recipes
       in the "world" target in the extensible SDK. Including this data
       allows the ``devtool search`` command to find these recipes in search
@@ -6600,7 +6600,7 @@
          needs to be built. Enabling the variable also slightly increases
          the size of the extensible SDK.
 
-   SDK_INCLUDE_TOOLCHAIN
+   :term:`SDK_INCLUDE_TOOLCHAIN`
       When set to "1", specifies to include the toolchain in the extensible
       SDK. Including the toolchain is useful particularly when
       :term:`SDK_EXT_TYPE` is set to "minimal" to keep
@@ -6613,7 +6613,7 @@
       ``SDK_EXT_TYPE`` is set to "minimal", and defaults to "1" if
       ``SDK_EXT_TYPE`` is set to "full".
 
-   SDK_INHERIT_BLACKLIST
+   :term:`SDK_INHERIT_BLACKLIST`
       A list of classes to remove from the :term:`INHERIT`
       value globally within the extensible SDK configuration. The
       :ref:`populate-sdk-ext <ref-classes-populate-sdk-*>` class sets the
@@ -6631,7 +6631,7 @@
       section in the Yocto Project Application Development and the
       Extensible Software Development Kit (eSDK) manual.
 
-   SDK_LOCAL_CONF_BLACKLIST
+   :term:`SDK_LOCAL_CONF_BLACKLIST`
       A list of variables not allowed through from the OpenEmbedded build
       system configuration into the extensible SDK configuration. Usually,
       these are variables that are specific to the machine on which the
@@ -6657,7 +6657,7 @@
       section in the Yocto Project Application Development and the
       Extensible Software Development Kit (eSDK) manual.
 
-   SDK_LOCAL_CONF_WHITELIST
+   :term:`SDK_LOCAL_CONF_WHITELIST`
       A list of variables allowed through from the OpenEmbedded build
       system configuration into the extensible SDK configuration. By
       default, the list of variables is empty and is set in the
@@ -6676,7 +6676,7 @@
       section in the Yocto Project Application Development and the
       Extensible Software Development Kit (eSDK) manual.
 
-   SDK_NAME
+   :term:`SDK_NAME`
       The base name for SDK output files. The name is derived from the
       :term:`DISTRO`, :term:`TCLIBC`,
       :term:`SDK_ARCH`,
@@ -6686,11 +6686,11 @@
 
          SDK_NAME = "${DISTRO}-${TCLIBC}-${SDK_ARCH}-${IMAGE_BASENAME}-${TUNE_PKGARCH}"
 
-   SDK_OS
+   :term:`SDK_OS`
       Specifies the operating system for which the SDK will be built. The
       default value is the value of :term:`BUILD_OS`.
 
-   SDK_OUTPUT
+   :term:`SDK_OUTPUT`
       The location used by the OpenEmbedded build system when creating SDK
       output. The :ref:`populate_sdk_base <ref-classes-populate-sdk-*>`
       class defines the variable as follows:
@@ -6706,14 +6706,14 @@
          WORKDIR by way of SDK_DIR. The final output directory is
          SDK_DEPLOY.
 
-   SDK_PACKAGE_ARCHS
+   :term:`SDK_PACKAGE_ARCHS`
       Specifies a list of architectures compatible with the SDK machine.
       This variable is set automatically and should not normally be
       hand-edited. Entries are separated using spaces and listed in order
       of priority. The default value for ``SDK_PACKAGE_ARCHS`` is "all any
       noarch ${SDK_ARCH}-${SDKPKGSUFFIX}".
 
-   SDK_POSTPROCESS_COMMAND
+   :term:`SDK_POSTPROCESS_COMMAND`
       Specifies a list of functions to call once the OpenEmbedded build
       system creates the SDK. You can specify functions separated by
       semicolons: SDK_POSTPROCESS_COMMAND += "function; ... "
@@ -6723,13 +6723,13 @@
       the OpenEmbedded build system when creating SDK output. See the
       :term:`SDK_DIR` variable for more information.
 
-   SDK_PREFIX
+   :term:`SDK_PREFIX`
       The toolchain binary prefix used for ``nativesdk`` recipes. The
       OpenEmbedded build system uses the ``SDK_PREFIX`` value to set the
       :term:`TARGET_PREFIX` when building
       ``nativesdk`` recipes. The default value is "${SDK_SYS}-".
 
-   SDK_RECRDEP_TASKS
+   :term:`SDK_RECRDEP_TASKS`
       A list of shared state tasks added to the extensible SDK. By default,
       the following tasks are added:
 
@@ -6745,7 +6745,7 @@
       tasks that are needed in order to build
       :term:`SDK_TARGETS`).
 
-   SDK_SYS
+   :term:`SDK_SYS`
       Specifies the system, including the architecture and the operating
       system, for which the SDK will be built.
 
@@ -6755,7 +6755,7 @@
       :term:`SDK_OS`. You do not need to set the ``SDK_SYS``
       variable yourself.
 
-   SDK_TARGET_MANIFEST
+   :term:`SDK_TARGET_MANIFEST`
       The manifest file for the target part of the SDK. This file lists all
       the installed packages that make up the target part of the SDK. The
       file contains package information on a line-per-package basis as
@@ -6773,7 +6773,7 @@
       The location is derived using the :term:`SDK_DEPLOY` and
       :term:`TOOLCHAIN_OUTPUTNAME` variables.
 
-   SDK_TARGETS
+   :term:`SDK_TARGETS`
       A list of targets to install from shared state as part of the
       standard or extensible SDK installation. The default value is "${PN}"
       (i.e. the image from which the SDK is built).
@@ -6781,7 +6781,7 @@
       The ``SDK_TARGETS`` variable is an internal variable and typically
       would not be changed.
 
-   SDK_TITLE
+   :term:`SDK_TITLE`
       The title to be printed when running the SDK installer. By default,
       this title is based on the :term:`DISTRO_NAME` or
       :term:`DISTRO` variable and is set in the
@@ -6799,15 +6799,15 @@
       section in the Yocto Project Application Development and the
       Extensible Software Development Kit (eSDK) manual.
 
-   SDK_UPDATE_URL
+   :term:`SDK_UPDATE_URL`
       An optional URL for an update server for the extensible SDK. If set,
       the value is used as the default update server when running
       ``devtool sdk-update`` within the extensible SDK.
 
-   SDK_VENDOR
+   :term:`SDK_VENDOR`
       Specifies the name of the SDK vendor.
 
-   SDK_VERSION
+   :term:`SDK_VERSION`
       Specifies the version of the SDK. The distribution configuration file
       (e.g. ``/meta-poky/conf/distro/poky.conf``) defines the
       ``SDK_VERSION`` as follows:
@@ -6819,7 +6819,7 @@
       :term:`DISTRO_VERSION` and
       :term:`DATE` variables.
 
-   SDKEXTPATH
+   :term:`SDKEXTPATH`
       The default installation directory for the Extensible SDK. By
       default, this directory is based on the :term:`DISTRO`
       variable and is set in the
@@ -6837,14 +6837,14 @@
       section in the Yocto Project Application Development and the
       Extensible Software Development Kit (eSDK) manual.
 
-   SDKIMAGE_FEATURES
+   :term:`SDKIMAGE_FEATURES`
       Equivalent to ``IMAGE_FEATURES``. However, this variable applies to
       the SDK generated from an image using the following command:
       ::
 
          $ bitbake -c populate_sdk imagename
 
-   SDKMACHINE
+   :term:`SDKMACHINE`
       The machine for which the SDK is built. In other words, the SDK is
       built such that it runs on the target you specify with the
       ``SDKMACHINE`` value. The value points to a corresponding ``.conf``
@@ -6864,23 +6864,23 @@
          variable in your distribution configuration file. If you do, the
          configuration will not take affect.
 
-   SDKPATH
+   :term:`SDKPATH`
       Defines the path offered to the user for installation of the SDK that
       is generated by the OpenEmbedded build system. The path appears as
       the default location for installing the SDK when you run the SDK's
       installation script. You can override the offered path when you run
       the script.
 
-   SDKTARGETSYSROOT
+   :term:`SDKTARGETSYSROOT`
       The full path to the sysroot used for cross-compilation within an SDK
       as it will be when installed into the default
       :term:`SDKPATH`.
 
-   SECTION
+   :term:`SECTION`
       The section in which packages should be categorized. Package
       management utilities can make use of this variable.
 
-   SELECTED_OPTIMIZATION
+   :term:`SELECTED_OPTIMIZATION`
       Specifies the optimization flags passed to the C compiler when
       building for the target. The flags are passed through the default
       value of the :term:`TARGET_CFLAGS` variable.
@@ -6889,7 +6889,7 @@
       ``FULL_OPTIMIZATION`` unless ``DEBUG_BUILD`` = "1". If that is the
       case, the value of ``DEBUG_OPTIMIZATION`` is used.
 
-   SERIAL_CONSOLE
+   :term:`SERIAL_CONSOLE`
       Defines a serial console (TTY) to enable using
       `getty <https://en.wikipedia.org/wiki/Getty_(Unix)>`__. Provide a
       value that specifies the baud rate followed by the TTY device name
@@ -6906,7 +6906,7 @@
          SERIAL_CONSOLES
          variable.
 
-   SERIAL_CONSOLES
+   :term:`SERIAL_CONSOLES`
       Defines a serial console (TTY) to enable using
       `getty <https://en.wikipedia.org/wiki/Getty_(Unix)>`__. Provide a
       value that specifies the baud rate followed by the TTY device name
@@ -6915,7 +6915,7 @@
 
          SERIAL_CONSOLES = "115200;ttyS0 115200;ttyS1"
 
-   SERIAL_CONSOLES_CHECK
+   :term:`SERIAL_CONSOLES_CHECK`
       Specifies serial consoles, which must be listed in
       :term:`SERIAL_CONSOLES`, to check against
       ``/proc/console`` before enabling them using getty. This variable
@@ -6928,7 +6928,7 @@
       This variable is currently only supported with SysVinit (i.e. not
       with systemd).
 
-   SIGGEN_EXCLUDE_SAFE_RECIPE_DEPS
+   :term:`SIGGEN_EXCLUDE_SAFE_RECIPE_DEPS`
       A list of recipe dependencies that should not be used to determine
       signatures of tasks from one recipe when they depend on tasks from
       another recipe. For example: ::
@@ -6956,7 +6956,7 @@
          the software might break during runtime if the interface of the
          second recipe was changed after the first recipe had been built.
 
-   SIGGEN_EXCLUDERECIPES_ABISAFE
+   :term:`SIGGEN_EXCLUDERECIPES_ABISAFE`
       A list of recipes that are completely stable and will never change.
       The ABI for the recipes in the list are presented by output from the
       tasks run to build the recipe. Use of this variable is one way to
@@ -6969,15 +6969,15 @@
          might break at runtime if the interface of the recipe was changed
          after the other had been built.
 
-   SITEINFO_BITS
+   :term:`SITEINFO_BITS`
       Specifies the number of bits for the target system CPU. The value
       should be either "32" or "64".
 
-   SITEINFO_ENDIANNESS
+   :term:`SITEINFO_ENDIANNESS`
       Specifies the endian byte order of the target system. The value
       should be either "le" for little-endian or "be" for big-endian.
 
-   SKIP_FILEDEPS
+   :term:`SKIP_FILEDEPS`
       Enables removal of all files from the "Provides" section of an RPM
       package. Removal of these files is required for packages containing
       prebuilt binaries and libraries such as ``libstdc++`` and ``glibc``.
@@ -6989,7 +6989,7 @@
 
          SKIP_FILEDEPS = "1"
 
-   SOC_FAMILY
+   :term:`SOC_FAMILY`
       Groups together machines based upon the same family of SOC (System On
       Chip). You typically set this variable in a common ``.inc`` file that
       you include in the configuration files of all the machines.
@@ -7002,7 +7002,7 @@
          MACHINEOVERRIDES
          .
 
-   SOLIBS
+   :term:`SOLIBS`
       Defines the suffix for shared libraries used on the target platform.
       By default, this suffix is ".so.*" for all Linux-based systems and is
       defined in the ``meta/conf/bitbake.conf`` configuration file.
@@ -7010,7 +7010,7 @@
       You will see this variable referenced in the default values of
       ``FILES_${PN}``.
 
-   SOLIBSDEV
+   :term:`SOLIBSDEV`
       Defines the suffix for the development symbolic link (symlink) for
       shared libraries on the target platform. By default, this suffix is
       ".so" for Linux-based systems and is defined in the
@@ -7019,7 +7019,7 @@
       You will see this variable referenced in the default values of
       ``FILES_${PN}-dev``.
 
-   SOURCE_MIRROR_FETCH
+   :term:`SOURCE_MIRROR_FETCH`
       When you are fetching files to create a mirror of sources (i.e.
       creating a source mirror), setting ``SOURCE_MIRROR_FETCH`` to "1" in
       your ``local.conf`` configuration file ensures the source for all
@@ -7038,7 +7038,7 @@
          variable unless you are creating a source mirror. In other words,
          do not set the variable during a normal build.
 
-   SOURCE_MIRROR_URL
+   :term:`SOURCE_MIRROR_URL`
       Defines your own :term:`PREMIRRORS` from which to
       first fetch source before attempting to fetch from the upstream
       specified in :term:`SRC_URI`.
@@ -7057,7 +7057,7 @@
          SOURCE_MIRROR_URL
          .
 
-   SPDXLICENSEMAP
+   :term:`SPDXLICENSEMAP`
       Maps commonly used license names to their SPDX counterparts found in
       ``meta/files/common-licenses/``. For the default ``SPDXLICENSEMAP``
       mappings, see the ``meta/conf/licenses.conf`` file.
@@ -7065,13 +7065,13 @@
       For additional information, see the :term:`LICENSE`
       variable.
 
-   SPECIAL_PKGSUFFIX
+   :term:`SPECIAL_PKGSUFFIX`
       A list of prefixes for :term:`PN` used by the OpenEmbedded
       build system to create variants of recipes or packages. The list
       specifies the prefixes to strip off during certain circumstances such
       as the generation of the :term:`BPN` variable.
 
-   SPL_BINARY
+   :term:`SPL_BINARY`
       The file type for the Secondary Program Loader (SPL). Some devices
       use an SPL from which to boot (e.g. the BeagleBone development
       board). For such cases, you can declare the file type of the SPL
@@ -7099,7 +7099,7 @@
       section in the Yocto Project Board Support Package Developer's Guide
       for additional information.
 
-   SRC_URI
+   :term:`SRC_URI`
       The list of source files - local or remote. This variable tells the
       OpenEmbedded build system which bits to pull in for the build and how
       to pull them in. For example, if the recipe or append file only needs
@@ -7242,18 +7242,18 @@
       -  ``downloadfilename`` - Specifies the filename used when storing
          the downloaded file.
 
-   SRC_URI_OVERRIDES_PACKAGE_ARCH
+   :term:`SRC_URI_OVERRIDES_PACKAGE_ARCH`
       By default, the OpenEmbedded build system automatically detects
       whether ``SRC_URI`` contains files that are machine-specific. If so,
       the build system automatically changes ``PACKAGE_ARCH``. Setting this
       variable to "0" disables this behavior.
 
-   SRCDATE
+   :term:`SRCDATE`
       The date of the source code used to build the package. This variable
       applies only if the source was fetched from a Source Code Manager
       (SCM).
 
-   SRCPV
+   :term:`SRCPV`
       Returns the version string of the current package. This string is
       used to help define the value of :term:`PV`.
 
@@ -7272,7 +7272,7 @@
 
          PV = "0.12-git${SRCPV}"
 
-   SRCREV
+   :term:`SRCREV`
       The revision of the source code used to build the package. This
       variable applies to Subversion, Git, Mercurial, and Bazaar only. Note
       that if you want to build a fixed revision and you want to avoid
@@ -7291,10 +7291,10 @@
          Automatically Incrementing a Binary Package Revision Number
          " section, which is in the Yocto Project Development Tasks Manual.
 
-   SSTATE_DIR
+   :term:`SSTATE_DIR`
       The directory for the shared state cache.
 
-   SSTATE_MIRROR_ALLOW_NETWORK
+   :term:`SSTATE_MIRROR_ALLOW_NETWORK`
       If set to "1", allows fetches from mirrors that are specified in
       :term:`SSTATE_MIRRORS` to work even when
       fetching from the network is disabled by setting ``BB_NO_NETWORK`` to
@@ -7303,7 +7303,7 @@
       your shared state cache, but you want to disable any other fetching
       from the network.
 
-   SSTATE_MIRRORS
+   :term:`SSTATE_MIRRORS`
       Configures the OpenEmbedded build system to search other mirror
       locations for prebuilt cache data objects before building out the
       data. This variable works like fetcher :term:`MIRRORS`
@@ -7337,7 +7337,7 @@
              file://.* http://someserver.tld/share/sstate/PATH;downloadfilename=PATH \n \
              file://.* file:///some-local-dir/sstate/PATH"
 
-   SSTATE_SCAN_FILES
+   :term:`SSTATE_SCAN_FILES`
       Controls the list of files the OpenEmbedded build system scans for
       hardcoded installation paths. The variable uses a space-separated
       list of filenames (not paths) with standard wildcard characters
@@ -7356,21 +7356,21 @@
       For details on the process, see the
       :ref:`staging <ref-classes-staging>` class.
 
-   STAGING_BASE_LIBDIR_NATIVE
+   :term:`STAGING_BASE_LIBDIR_NATIVE`
       Specifies the path to the ``/lib`` subdirectory of the sysroot
       directory for the build host.
 
-   STAGING_BASELIBDIR
+   :term:`STAGING_BASELIBDIR`
       Specifies the path to the ``/lib`` subdirectory of the sysroot
       directory for the target for which the current recipe is being built
       (:term:`STAGING_DIR_HOST`).
 
-   STAGING_BINDIR
+   :term:`STAGING_BINDIR`
       Specifies the path to the ``/usr/bin`` subdirectory of the sysroot
       directory for the target for which the current recipe is being built
       (:term:`STAGING_DIR_HOST`).
 
-   STAGING_BINDIR_CROSS
+   :term:`STAGING_BINDIR_CROSS`
       Specifies the path to the directory containing binary configuration
       scripts. These scripts provide configuration information for other
       software that wants to make use of libraries or include files
@@ -7387,20 +7387,20 @@
          pkg-config
          instead of a provided configuration script.
 
-   STAGING_BINDIR_NATIVE
+   :term:`STAGING_BINDIR_NATIVE`
       Specifies the path to the ``/usr/bin`` subdirectory of the sysroot
       directory for the build host.
 
-   STAGING_DATADIR
+   :term:`STAGING_DATADIR`
       Specifies the path to the ``/usr/share`` subdirectory of the sysroot
       directory for the target for which the current recipe is being built
       (:term:`STAGING_DIR_HOST`).
 
-   STAGING_DATADIR_NATIVE
+   :term:`STAGING_DATADIR_NATIVE`
       Specifies the path to the ``/usr/share`` subdirectory of the sysroot
       directory for the build host.
 
-   STAGING_DIR
+   :term:`STAGING_DIR`
       Helps construct the ``recipe-sysroots`` directory, which is used
       during packaging.
 
@@ -7426,7 +7426,7 @@
          task and then the OpenEmbedded build system will stage a subset of
          those files into the sysroot.
 
-   STAGING_DIR_HOST
+   :term:`STAGING_DIR_HOST`
       Specifies the path to the sysroot directory for the system on which
       the component is built to run (the system that hosts the component).
       For most recipes, this sysroot is the one in which that recipe's
@@ -7464,11 +7464,11 @@
             for ``-native`` recipes, as they make use of host headers and
             libraries.
 
-   STAGING_DIR_NATIVE
+   :term:`STAGING_DIR_NATIVE`
       Specifies the path to the sysroot directory used when building
       components that run on the build host itself.
 
-   STAGING_DIR_TARGET
+   :term:`STAGING_DIR_TARGET`
       Specifies the path to the sysroot used for the system for which the
       component generates code. For components that do not generate code,
       which is the majority, ``STAGING_DIR_TARGET`` is set to match
@@ -7484,45 +7484,45 @@
       for the "HOST" system, while ``STAGING_DIR_TARGET`` points to the
       sysroot used for the "TARGET" system.
 
-   STAGING_ETCDIR_NATIVE
+   :term:`STAGING_ETCDIR_NATIVE`
       Specifies the path to the ``/etc`` subdirectory of the sysroot
       directory for the build host.
 
-   STAGING_EXECPREFIXDIR
+   :term:`STAGING_EXECPREFIXDIR`
       Specifies the path to the ``/usr`` subdirectory of the sysroot
       directory for the target for which the current recipe is being built
       (:term:`STAGING_DIR_HOST`).
 
-   STAGING_INCDIR
+   :term:`STAGING_INCDIR`
       Specifies the path to the ``/usr/include`` subdirectory of the
       sysroot directory for the target for which the current recipe being
       built (:term:`STAGING_DIR_HOST`).
 
-   STAGING_INCDIR_NATIVE
+   :term:`STAGING_INCDIR_NATIVE`
       Specifies the path to the ``/usr/include`` subdirectory of the
       sysroot directory for the build host.
 
-   STAGING_KERNEL_BUILDDIR
+   :term:`STAGING_KERNEL_BUILDDIR`
       Points to the directory containing the kernel build artifacts.
       Recipes building software that needs to access kernel build artifacts
       (e.g. ``systemtap-uprobes``) can look in the directory specified with
       the ``STAGING_KERNEL_BUILDDIR`` variable to find these artifacts
       after the kernel has been built.
 
-   STAGING_KERNEL_DIR
+   :term:`STAGING_KERNEL_DIR`
       The directory with kernel headers that are required to build
       out-of-tree modules.
 
-   STAGING_LIBDIR
+   :term:`STAGING_LIBDIR`
       Specifies the path to the ``/usr/lib`` subdirectory of the sysroot
       directory for the target for which the current recipe is being built
       (:term:`STAGING_DIR_HOST`).
 
-   STAGING_LIBDIR_NATIVE
+   :term:`STAGING_LIBDIR_NATIVE`
       Specifies the path to the ``/usr/lib`` subdirectory of the sysroot
       directory for the build host.
 
-   STAMP
+   :term:`STAMP`
       Specifies the base path used to create recipe stamp files. The path
       to an actual stamp file is constructed by evaluating this string and
       then appending additional information. Currently, the default
@@ -7543,26 +7543,26 @@
       :term:`PV`, and :term:`PR` for related variable
       information.
 
-   STAMPS_DIR
+   :term:`STAMPS_DIR`
       Specifies the base directory in which the OpenEmbedded build system
       places stamps. The default directory is ``${TMPDIR}/stamps``.
 
-   STRIP
+   :term:`STRIP`
       The minimal command and arguments to run ``strip``, which is used to
       strip symbols.
 
-   SUMMARY
+   :term:`SUMMARY`
       The short (72 characters or less) summary of the binary package for
       packaging systems such as ``opkg``, ``rpm``, or ``dpkg``. By default,
       ``SUMMARY`` is used to define the
       :term:`DESCRIPTION` variable if ``DESCRIPTION`` is
       not set in the recipe.
 
-   SVNDIR
+   :term:`SVNDIR`
       The directory in which files checked out of a Subversion system are
       stored.
 
-   SYSLINUX_DEFAULT_CONSOLE
+   :term:`SYSLINUX_DEFAULT_CONSOLE`
       Specifies the kernel boot default console. If you want to use a
       console other than the default, set this variable in your recipe as
       follows where "X" is the console number you want to use:
@@ -7573,7 +7573,7 @@
       The :ref:`syslinux <ref-classes-syslinux>` class initially sets
       this variable to null but then checks for a value later.
 
-   SYSLINUX_OPTS
+   :term:`SYSLINUX_OPTS`
       Lists additional options to add to the syslinux file. You need to set
       this variable in your recipe. If you want to list multiple options,
       separate the options with a semicolon character (``;``).
@@ -7581,7 +7581,7 @@
       The :ref:`syslinux <ref-classes-syslinux>` class uses this variable
       to create a set of options.
 
-   SYSLINUX_SERIAL
+   :term:`SYSLINUX_SERIAL`
       Specifies the alternate serial port or turns it off. To turn off
       serial, set this variable to an empty string in your recipe. The
       variable's default value is set in the
@@ -7592,15 +7592,7 @@
 
       The class checks for and uses the variable as needed.
 
-   SYSLINUX_SPLASH
-      An ``.LSS`` file used as the background for the VGA boot menu when
-      you use the boot menu. You need to set this variable in your recipe.
-
-      The :ref:`syslinux <ref-classes-syslinux>` class checks for this
-      variable and if found, the OpenEmbedded build system installs the
-      splash screen.
-
-   SYSLINUX_SERIAL_TTY
+   :term:`SYSLINUX_SERIAL_TTY`
       Specifies the alternate console=tty... kernel boot argument. The
       variable's default value is set in the
       :ref:`syslinux <ref-classes-syslinux>` class as follows:
@@ -7610,13 +7602,21 @@
 
       The class checks for and uses the variable as needed.
 
-   SYSROOT_DESTDIR
+   :term:`SYSLINUX_SPLASH`
+      An ``.LSS`` file used as the background for the VGA boot menu when
+      you use the boot menu. You need to set this variable in your recipe.
+
+      The :ref:`syslinux <ref-classes-syslinux>` class checks for this
+      variable and if found, the OpenEmbedded build system installs the
+      splash screen.
+
+   :term:`SYSROOT_DESTDIR`
       Points to the temporary directory under the work directory (default
       "``${``\ :term:`WORKDIR`\ ``}/sysroot-destdir``")
       where the files populated into the sysroot are assembled during the
       :ref:`ref-tasks-populate_sysroot` task.
 
-   SYSROOT_DIRS
+   :term:`SYSROOT_DIRS`
       Directories that are staged into the sysroot by the
       :ref:`ref-tasks-populate_sysroot` task. By
       default, the following directories are staged:
@@ -7630,7 +7630,7 @@
              ${datadir} \
              "
 
-   SYSROOT_DIRS_BLACKLIST
+   :term:`SYSROOT_DIRS_BLACKLIST`
       Directories that are not staged into the sysroot by the
       :ref:`ref-tasks-populate_sysroot` task. You
       can use this variable to exclude certain subdirectories of
@@ -7648,7 +7648,7 @@
              ${datadir}/pixmaps \
              "
 
-   SYSROOT_DIRS_NATIVE
+   :term:`SYSROOT_DIRS_NATIVE`
       Extra directories staged into the sysroot by the
       :ref:`ref-tasks-populate_sysroot` task for
       ``-native`` recipes, in addition to those specified in
@@ -7675,12 +7675,12 @@
          ), which is why additional directories containing program
          executables and supporting files need to be staged.
 
-   SYSROOT_PREPROCESS_FUNCS
+   :term:`SYSROOT_PREPROCESS_FUNCS`
       A list of functions to execute after files are staged into the
       sysroot. These functions are usually used to apply additional
       processing on the staged files, or to stage additional files.
 
-   SYSTEMD_AUTO_ENABLE
+   :term:`SYSTEMD_AUTO_ENABLE`
       When inheriting the :ref:`systemd <ref-classes-systemd>` class,
       this variable specifies whether the specified service in
       :term:`SYSTEMD_SERVICE` should start
@@ -7693,7 +7693,7 @@
 
       You can disable the service by setting the variable to "disable".
 
-   SYSTEMD_BOOT_CFG
+   :term:`SYSTEMD_BOOT_CFG`
       When :term:`EFI_PROVIDER` is set to
       "systemd-boot", the ``SYSTEMD_BOOT_CFG`` variable specifies the
       configuration file that should be used. By default, the
@@ -7706,7 +7706,7 @@
       For information on Systemd-boot, see the `Systemd-boot
       documentation <http://www.freedesktop.org/wiki/Software/systemd/systemd-boot/>`__.
 
-   SYSTEMD_BOOT_ENTRIES
+   :term:`SYSTEMD_BOOT_ENTRIES`
       When :term:`EFI_PROVIDER` is set to
       "systemd-boot", the ``SYSTEMD_BOOT_ENTRIES`` variable specifies a
       list of entry files (``*.conf``) to install that contain one boot
@@ -7720,7 +7720,7 @@
       For information on Systemd-boot, see the `Systemd-boot
       documentation <http://www.freedesktop.org/wiki/Software/systemd/systemd-boot/>`__.
 
-   SYSTEMD_BOOT_TIMEOUT
+   :term:`SYSTEMD_BOOT_TIMEOUT`
       When :term:`EFI_PROVIDER` is set to
       "systemd-boot", the ``SYSTEMD_BOOT_TIMEOUT`` variable specifies the
       boot menu timeout in seconds. By default, the
@@ -7733,7 +7733,7 @@
       For information on Systemd-boot, see the `Systemd-boot
       documentation <http://www.freedesktop.org/wiki/Software/systemd/systemd-boot/>`__.
 
-   SYSTEMD_PACKAGES
+   :term:`SYSTEMD_PACKAGES`
       When inheriting the :ref:`systemd <ref-classes-systemd>` class,
       this variable locates the systemd unit files when they are not found
       in the main recipe's package. By default, the ``SYSTEMD_PACKAGES``
@@ -7747,7 +7747,7 @@
       to use ``SYSTEMD_PACKAGES`` to list the package or packages in which
       the build system can find the systemd unit files.
 
-   SYSTEMD_SERVICE
+   :term:`SYSTEMD_SERVICE`
       When inheriting the :ref:`systemd <ref-classes-systemd>` class,
       this variable specifies the systemd service name for a package.
 
@@ -7758,7 +7758,7 @@
 
          SYSTEMD_SERVICE_${PN} = "connman.service"
 
-   SYSVINIT_ENABLED_GETTYS
+   :term:`SYSVINIT_ENABLED_GETTYS`
       When using
       :ref:`SysVinit <dev-manual/dev-manual-common-tasks:enabling system services>`,
       specifies a space-separated list of the virtual terminals that should
@@ -7769,7 +7769,7 @@
       The default value for ``SYSVINIT_ENABLED_GETTYS`` is "1" (i.e. only
       run a getty on the first virtual terminal).
 
-   T
+   :term:`T`
       This variable points to a directory were BitBake places temporary
       files, which consist mostly of task logs and scripts, when building a
       particular recipe. The variable is typically set as follows:
@@ -7786,7 +7786,7 @@
       the directory tree where BitBake places the output of an entire
       build.
 
-   TARGET_ARCH
+   :term:`TARGET_ARCH`
       The target machine's architecture. The OpenEmbedded build system
       supports many architectures. Here is an example list of architectures
       supported. This list is by no means complete as the architecture is
@@ -7803,7 +7803,7 @@
       For additional information on machine architectures, see the
       :term:`TUNE_ARCH` variable.
 
-   TARGET_AS_ARCH
+   :term:`TARGET_AS_ARCH`
       Specifies architecture-specific assembler flags for the target
       system. ``TARGET_AS_ARCH`` is initialized from
       :term:`TUNE_ASARGS` by default in the BitBake
@@ -7812,7 +7812,7 @@
 
          TARGET_AS_ARCH = "${TUNE_ASARGS}"
 
-   TARGET_CC_ARCH
+   :term:`TARGET_CC_ARCH`
       Specifies architecture-specific C compiler flags for the target
       system. ``TARGET_CC_ARCH`` is initialized from
       :term:`TUNE_CCARGS` by default.
@@ -7828,7 +7828,7 @@
          LDFLAGS
          variable.
 
-   TARGET_CC_KERNEL_ARCH
+   :term:`TARGET_CC_KERNEL_ARCH`
       This is a specific kernel compiler flag for a CPU or Application
       Binary Interface (ABI) tune. The flag is used rarely and only for
       cases where a userspace :term:`TUNE_CCARGS` is not
@@ -7838,7 +7838,7 @@
       ``meta/conf/machine/include/arm/feature-arm-thumb.inc`` file in the
       :term:`Source Directory` for an example.
 
-   TARGET_CFLAGS
+   :term:`TARGET_CFLAGS`
       Specifies the flags to pass to the C compiler when building for the
       target. When building in the target context,
       :term:`CFLAGS` is set to the value of this variable by
@@ -7848,7 +7848,7 @@
       variable in the environment to the ``TARGET_CFLAGS`` value so that
       executables built using the SDK also have the flags applied.
 
-   TARGET_CPPFLAGS
+   :term:`TARGET_CPPFLAGS`
       Specifies the flags to pass to the C pre-processor (i.e. to both the
       C and the C++ compilers) when building for the target. When building
       in the target context, :term:`CPPFLAGS` is set to the
@@ -7859,7 +7859,7 @@
       value so that executables built using the SDK also have the flags
       applied.
 
-   TARGET_CXXFLAGS
+   :term:`TARGET_CXXFLAGS`
       Specifies the flags to pass to the C++ compiler when building for the
       target. When building in the target context,
       :term:`CXXFLAGS` is set to the value of this variable
@@ -7870,13 +7870,13 @@
       value so that executables built using the SDK also have the flags
       applied.
 
-   TARGET_FPU
+   :term:`TARGET_FPU`
       Specifies the method for handling FPU code. For FPU-less targets,
       which include most ARM CPUs, the variable must be set to "soft". If
       not, the kernel emulation gets used, which results in a performance
       penalty.
 
-   TARGET_LD_ARCH
+   :term:`TARGET_LD_ARCH`
       Specifies architecture-specific linker flags for the target system.
       ``TARGET_LD_ARCH`` is initialized from
       :term:`TUNE_LDARGS` by default in the BitBake
@@ -7885,7 +7885,7 @@
 
          TARGET_LD_ARCH = "${TUNE_LDARGS}"
 
-   TARGET_LDFLAGS
+   :term:`TARGET_LDFLAGS`
       Specifies the flags to pass to the linker when building for the
       target. When building in the target context,
       :term:`LDFLAGS` is set to the value of this variable
@@ -7896,13 +7896,13 @@
       ``TARGET_LDFLAGS`` value so that executables built using the SDK also
       have the flags applied.
 
-   TARGET_OS
+   :term:`TARGET_OS`
       Specifies the target's operating system. The variable can be set to
       "linux" for glibc-based systems (GNU C Library) and to "linux-musl"
       for musl libc. For ARM/EABI targets, "linux-gnueabi" and
       "linux-musleabi" possible values exist.
 
-   TARGET_PREFIX
+   :term:`TARGET_PREFIX`
       Specifies the prefix used for the toolchain binary target tools.
 
       Depending on the type of recipe and the build target,
@@ -7917,7 +7917,7 @@
       -  For native SDK recipes (``nativesdk``), the build system sets the
          variable to the value of ``SDK_PREFIX``.
 
-   TARGET_SYS
+   :term:`TARGET_SYS`
       Specifies the system, including the architecture and the operating
       system, for which the build is occurring in the context of the
       current recipe.
@@ -7939,17 +7939,17 @@
       -  Given a recipe being built for a little-endian, MIPS target
          running Linux, the value might be "mipsel-linux".
 
-   TARGET_VENDOR
+   :term:`TARGET_VENDOR`
       Specifies the name of the target vendor.
 
-   TCLIBC
+   :term:`TCLIBC`
       Specifies the GNU standard C library (``libc``) variant to use during
       the build process. This variable replaces ``POKYLIBC``, which is no
       longer supported.
 
       You can select "glibc", "musl", "newlib", or "baremetal"
 
-   TCLIBCAPPEND
+   :term:`TCLIBCAPPEND`
       Specifies a suffix to be appended onto the
       :term:`TMPDIR` value. The suffix identifies the
       ``libc`` variant for building. When you are building for multiple
@@ -7963,7 +7963,7 @@
       ``TCLIBCAPPEND`` to "" in their distro configuration file resulting
       in no suffix being applied.
 
-   TCMODE
+   :term:`TCMODE`
       Specifies the toolchain selector. ``TCMODE`` controls the
       characteristics of the generated packages and images by telling the
       OpenEmbedded build system which toolchain profile to use. By default,
@@ -8007,7 +8007,7 @@
       toolchain. You can use ``meta-sourcery`` as a template for adding
       support for other external toolchains.
 
-   TEST_EXPORT_DIR
+   :term:`TEST_EXPORT_DIR`
       The location the OpenEmbedded build system uses to export tests when
       the :term:`TEST_EXPORT_ONLY` variable is set
       to "1".
@@ -8015,12 +8015,12 @@
       The ``TEST_EXPORT_DIR`` variable defaults to
       ``"${TMPDIR}/testimage/${PN}"``.
 
-   TEST_EXPORT_ONLY
+   :term:`TEST_EXPORT_ONLY`
       Specifies to export the tests only. Set this variable to "1" if you
       do not want to run the tests but you want them to be exported in a
       manner that you to run them outside of the build system.
 
-   TEST_LOG_DIR
+   :term:`TEST_LOG_DIR`
       Holds the SSH log and the boot log for QEMU machines. The
       ``TEST_LOG_DIR`` variable defaults to ``"${WORKDIR}/testimage"``.
 
@@ -8032,7 +8032,7 @@
          ${WORKDIR}/temp/
          directory.
 
-   TEST_POWERCONTROL_CMD
+   :term:`TEST_POWERCONTROL_CMD`
       For automated hardware testing, specifies the command to use to
       control the power of the target machine under test. Typically, this
       command would point to a script that performs the appropriate action
@@ -8041,7 +8041,7 @@
       "cycle" specifying to power off, on, or cycle (power off and then
       power on) the device, respectively.
 
-   TEST_POWERCONTROL_EXTRA_ARGS
+   :term:`TEST_POWERCONTROL_EXTRA_ARGS`
       For automated hardware testing, specifies additional arguments to
       pass through to the command specified in
       :term:`TEST_POWERCONTROL_CMD`. Setting
@@ -8049,7 +8049,7 @@
       wish, for example, to separate the machine-specific and
       non-machine-specific parts of the arguments.
 
-   TEST_QEMUBOOT_TIMEOUT
+   :term:`TEST_QEMUBOOT_TIMEOUT`
       The time in seconds allowed for an image to boot before automated
       runtime tests begin to run against an image. The default timeout
       period to allow the boot process to reach the login prompt is 500
@@ -8060,7 +8060,7 @@
       ":ref:`dev-manual/dev-manual-common-tasks:performing automated runtime testing`"
       section in the Yocto Project Development Tasks Manual.
 
-   TEST_SERIALCONTROL_CMD
+   :term:`TEST_SERIALCONTROL_CMD`
       For automated hardware testing, specifies the command to use to
       connect to the serial console of the target machine under test. This
       command simply needs to connect to the serial console and forward
@@ -8073,7 +8073,7 @@
 
          TEST_SERIALCONTROL_CMD = "picocom /dev/ttyUSB0 -b 115200"
 
-   TEST_SERIALCONTROL_EXTRA_ARGS
+   :term:`TEST_SERIALCONTROL_EXTRA_ARGS`
       For automated hardware testing, specifies additional arguments to
       pass through to the command specified in
       :term:`TEST_SERIALCONTROL_CMD`. Setting
@@ -8081,7 +8081,7 @@
       wish, for example, to separate the machine-specific and
       non-machine-specific parts of the command.
 
-   TEST_SERVER_IP
+   :term:`TEST_SERVER_IP`
       The IP address of the build machine (host machine). This IP address
       is usually automatically detected. However, if detection fails, this
       variable needs to be set to the IP address of the build machine (i.e.
@@ -8096,61 +8096,7 @@
          WORKDIR/oe-rootfs-repo
          .
 
-   TEST_TARGET
-      Specifies the target controller to use when running tests against a
-      test image. The default controller to use is "qemu":
-      ::
-
-         TEST_TARGET = "qemu"
-
-      A target controller is a class that defines how an image gets
-      deployed on a target and how a target is started. A layer can extend
-      the controllers by adding a module in the layer's
-      ``/lib/oeqa/controllers`` directory and by inheriting the
-      ``BaseTarget`` class, which is an abstract class that cannot be used
-      as a value of ``TEST_TARGET``.
-
-      You can provide the following arguments with ``TEST_TARGET``:
-
-      -  *"qemu":* Boots a QEMU image and runs the tests. See the
-         ":ref:`qemu-image-enabling-tests`" section
-         in the Yocto Project Development Tasks Manual for more
-         information.
-
-      -  *"simpleremote":* Runs the tests on target hardware that is
-         already up and running. The hardware can be on the network or it
-         can be a device running an image on QEMU. You must also set
-         :term:`TEST_TARGET_IP` when you use
-         "simpleremote".
-
-         .. note::
-
-            This argument is defined in
-            meta/lib/oeqa/controllers/simpleremote.py
-            .
-
-      For information on running tests on hardware, see the
-      ":ref:`hardware-image-enabling-tests`"
-      section in the Yocto Project Development Tasks Manual.
-
-   TEST_TARGET_IP
-      The IP address of your hardware under test. The ``TEST_TARGET_IP``
-      variable has no effect when :term:`TEST_TARGET` is
-      set to "qemu".
-
-      When you specify the IP address, you can also include a port. Here is
-      an example:
-      ::
-
-         TEST_TARGET_IP = "192.168.1.4:2201"
-
-      Specifying a port is
-      useful when SSH is started on a non-standard port or in cases when
-      your hardware under test is behind a firewall or network that is not
-      directly accessible from your host and you need to do port address
-      translation.
-
-   TEST_SUITES
+   :term:`TEST_SUITES`
       An ordered list of tests (modules) to run against an image when
       performing automated runtime testing.
 
@@ -8193,7 +8139,61 @@
       ":ref:`dev-manual/dev-manual-common-tasks:performing automated runtime testing`"
       section in the Yocto Project Development Tasks Manual.
 
-   TESTIMAGE_AUTO
+   :term:`TEST_TARGET`
+      Specifies the target controller to use when running tests against a
+      test image. The default controller to use is "qemu":
+      ::
+
+         TEST_TARGET = "qemu"
+
+      A target controller is a class that defines how an image gets
+      deployed on a target and how a target is started. A layer can extend
+      the controllers by adding a module in the layer's
+      ``/lib/oeqa/controllers`` directory and by inheriting the
+      ``BaseTarget`` class, which is an abstract class that cannot be used
+      as a value of ``TEST_TARGET``.
+
+      You can provide the following arguments with ``TEST_TARGET``:
+
+      -  *"qemu":* Boots a QEMU image and runs the tests. See the
+         ":ref:`qemu-image-enabling-tests`" section
+         in the Yocto Project Development Tasks Manual for more
+         information.
+
+      -  *"simpleremote":* Runs the tests on target hardware that is
+         already up and running. The hardware can be on the network or it
+         can be a device running an image on QEMU. You must also set
+         :term:`TEST_TARGET_IP` when you use
+         "simpleremote".
+
+         .. note::
+
+            This argument is defined in
+            meta/lib/oeqa/controllers/simpleremote.py
+            .
+
+      For information on running tests on hardware, see the
+      ":ref:`hardware-image-enabling-tests`"
+      section in the Yocto Project Development Tasks Manual.
+
+   :term:`TEST_TARGET_IP`
+      The IP address of your hardware under test. The ``TEST_TARGET_IP``
+      variable has no effect when :term:`TEST_TARGET` is
+      set to "qemu".
+
+      When you specify the IP address, you can also include a port. Here is
+      an example:
+      ::
+
+         TEST_TARGET_IP = "192.168.1.4:2201"
+
+      Specifying a port is
+      useful when SSH is started on a non-standard port or in cases when
+      your hardware under test is behind a firewall or network that is not
+      directly accessible from your host and you need to do port address
+      translation.
+
+   :term:`TESTIMAGE_AUTO`
       Automatically runs the series of automated tests for images when an
       image is successfully built. Setting ``TESTIMAGE_AUTO`` to "1" causes
       any image that successfully builds to automatically boot under QEMU.
@@ -8215,16 +8215,16 @@
       section in the Yocto Project Development Tasks Manual and the
       ":ref:`testimage*.bbclass <ref-classes-testimage*>`" section.
 
-   THISDIR
+   :term:`THISDIR`
       The directory in which the file BitBake is currently parsing is
       located. Do not manually set this variable.
 
-   TIME
+   :term:`TIME`
       The time the build was started. Times appear using the hour, minute,
       and second (HMS) format (e.g. "140159" for one minute and fifty-nine
       seconds past 1400 hours).
 
-   TMPDIR
+   :term:`TMPDIR`
       This variable is the base directory the OpenEmbedded build system
       uses for all build output and intermediate files (other than the
       shared state cache). By default, the ``TMPDIR`` variable points to
@@ -8246,7 +8246,7 @@
       implementations, NFS does not meet this minimum requirement.
       Consequently, ``TMPDIR`` cannot be on NFS.
 
-   TOOLCHAIN_HOST_TASK
+   :term:`TOOLCHAIN_HOST_TASK`
       This variable lists packages the OpenEmbedded build system uses when
       building an SDK, which contains a cross-development environment. The
       packages specified by this variable are part of the toolchain set
@@ -8271,7 +8271,7 @@
       information on setting up a cross-development environment, see the
       :doc:`../sdk-manual/sdk-manual` manual.
 
-   TOOLCHAIN_OUTPUTNAME
+   :term:`TOOLCHAIN_OUTPUTNAME`
       This variable defines the name used for the toolchain output. The
       :ref:`populate_sdk_base <ref-classes-populate-sdk-*>` class sets
       the ``TOOLCHAIN_OUTPUTNAME`` variable as follows:
@@ -8284,7 +8284,7 @@
       :term:`SDK_VERSION` variables for additional
       information.
 
-   TOOLCHAIN_TARGET_TASK
+   :term:`TOOLCHAIN_TARGET_TASK`
       This variable lists packages the OpenEmbedded build system uses when
       it creates the target part of an SDK (i.e. the part built for the
       target hardware), which includes libraries and headers. Use this
@@ -8301,12 +8301,12 @@
       information on setting up a cross-development environment, see the
       :doc:`../sdk-manual/sdk-manual` manual.
 
-   TOPDIR
+   :term:`TOPDIR`
       The top-level :term:`Build Directory`. BitBake
       automatically sets this variable when you initialize your build
       environment using ````` <#structure-core-script>`__.
 
-   TRANSLATED_TARGET_ARCH
+   :term:`TRANSLATED_TARGET_ARCH`
       A sanitized version of :term:`TARGET_ARCH`. This
       variable is used where the architecture is needed in a value where
       underscores are not allowed, for example within package filenames. In
@@ -8315,7 +8315,7 @@
 
       Do not edit this variable.
 
-   TUNE_ARCH
+   :term:`TUNE_ARCH`
       The GNU canonical architecture for a specific architecture (i.e.
       ``arm``, ``armeb``, ``mips``, ``mips64``, and so forth). BitBake uses
       this value to setup configuration.
@@ -8347,7 +8347,7 @@
       - mips
       - mipsel
 
-   TUNE_ASARGS
+   :term:`TUNE_ASARGS`
       Specifies architecture-specific assembler flags for the target
       system. The set of flags is based on the selected tune features.
       ``TUNE_ASARGS`` is set using the tune include files, which are
@@ -8365,7 +8365,7 @@
          in turn, affects the tune variables themselves (i.e. the tune can
          supply its own set of flags).
 
-   TUNE_CCARGS
+   :term:`TUNE_CCARGS`
       Specifies architecture-specific C compiler flags for the target
       system. The set of flags is based on the selected tune features.
       ``TUNE_CCARGS`` is set using the tune include files, which are
@@ -8378,7 +8378,24 @@
          in turn, affects the tune variables themselves (i.e. the tune can
          supply its own set of flags).
 
-   TUNE_LDARGS
+   :term:`TUNE_FEATURES`
+      Features used to "tune" a compiler for optimal use given a specific
+      processor. The features are defined within the tune files and allow
+      arguments (i.e. ``TUNE_*ARGS``) to be dynamically generated based on
+      the features.
+
+      The OpenEmbedded build system verifies the features to be sure they
+      are not conflicting and that they are supported.
+
+      The BitBake configuration file (``meta/conf/bitbake.conf``) defines
+      ``TUNE_FEATURES`` as follows:
+      ::
+
+         TUNE_FEATURES ??= "${TUNE_FEATURES_tune-${DEFAULTTUNE}}"
+
+      See the :term:`DEFAULTTUNE` variable for more information.
+
+   :term:`TUNE_LDARGS`
       Specifies architecture-specific linker flags for the target system.
       The set of flags is based on the selected tune features.
       ``TUNE_LDARGS`` is set using the tune include files, which are
@@ -8396,24 +8413,7 @@
          in turn, affects the tune variables themselves (i.e. the tune can
          supply its own set of flags).
 
-   TUNE_FEATURES
-      Features used to "tune" a compiler for optimal use given a specific
-      processor. The features are defined within the tune files and allow
-      arguments (i.e. ``TUNE_*ARGS``) to be dynamically generated based on
-      the features.
-
-      The OpenEmbedded build system verifies the features to be sure they
-      are not conflicting and that they are supported.
-
-      The BitBake configuration file (``meta/conf/bitbake.conf``) defines
-      ``TUNE_FEATURES`` as follows:
-      ::
-
-         TUNE_FEATURES ??= "${TUNE_FEATURES_tune-${DEFAULTTUNE}}"
-
-      See the :term:`DEFAULTTUNE` variable for more information.
-
-   TUNE_PKGARCH
+   :term:`TUNE_PKGARCH`
       The package architecture understood by the packaging system to define
       the architecture, ABI, and tuning of output packages. The specific
       tune is defined using the "_tune" override as follows:
@@ -8428,7 +8428,7 @@
 
          TUNE_PKGARCH_tune-core2-32 = "core2-32"
 
-   TUNEABI
+   :term:`TUNEABI`
       An underlying Application Binary Interface (ABI) used by a particular
       tuning in a given toolchain layer. Providers that use prebuilt
       libraries can use the ``TUNEABI``,
@@ -8440,7 +8440,7 @@
       :ref:`sanity <ref-classes-sanity>` class to see how the variable is
       used.
 
-   TUNEABI_OVERRIDE
+   :term:`TUNEABI_OVERRIDE`
       If set, the OpenEmbedded system ignores the
       :term:`TUNEABI_WHITELIST` variable.
       Providers that use prebuilt libraries can use the
@@ -8451,7 +8451,7 @@
       See the :ref:`sanity <ref-classes-sanity>` class to see how the
       variable is used.
 
-   TUNEABI_WHITELIST
+   :term:`TUNEABI_WHITELIST`
       A whitelist of permissible :term:`TUNEABI` values. If
       ``TUNEABI_WHITELIST`` is not set, all tunes are allowed. Providers
       that use prebuilt libraries can use the ``TUNEABI_WHITELIST``,
@@ -8462,7 +8462,7 @@
       See the :ref:`sanity <ref-classes-sanity>` class to see how the
       variable is used.
 
-   TUNECONFLICTS[feature]
+   :term:`TUNECONFLICTS[feature]`
       Specifies CPU or Application Binary Interface (ABI) tuning features
       that conflict with feature.
 
@@ -8475,7 +8475,7 @@
 
          TUNECONFLICTS[n32] = "o32 n64"
 
-   TUNEVALID[feature]
+   :term:`TUNEVALID[feature]`
       Specifies a valid CPU or Application Binary Interface (ABI) tuning
       feature. The specified feature is stored as a flag. Valid features
       are specified in the machine include files (e.g.
@@ -8488,7 +8488,7 @@
       See the machine include files in the :term:`Source Directory`
       for these features.
 
-   UBOOT_CONFIG
+   :term:`UBOOT_CONFIG`
       Configures the :term:`UBOOT_MACHINE` and can
       also define :term:`IMAGE_FSTYPES` for individual
       cases.
@@ -8510,30 +8510,30 @@
       :ref:`uboot-config <ref-classes-uboot-config>`
       class.
 
-   UBOOT_DTB_LOADADDRESS
+   :term:`UBOOT_DTB_LOADADDRESS`
       Specifies the load address for the dtb image used by U-boot. During FIT
       image creation, the ``UBOOT_DTB_LOADADDRESS`` variable is used in
       :ref:`kernel-fitimage <ref-classes-kernel-fitimage>` class to specify
       the load address to be used in
       creating the dtb sections of Image Tree Source for the FIT image.
 
-   UBOOT_DTBO_LOADADDRESS
+   :term:`UBOOT_DTBO_LOADADDRESS`
       Specifies the load address for the dtbo image used by U-boot.  During FIT
       image creation, the ``UBOOT_DTBO_LOADADDRESS`` variable is used in
       :ref:`kernel-fitimage <ref-classes-kernel-fitimage>` class to specify the load address to be used in
       creating the dtbo sections of Image Tree Source for the FIT image.
 
-   UBOOT_ENTRYPOINT
+   :term:`UBOOT_ENTRYPOINT`
       Specifies the entry point for the U-Boot image. During U-Boot image
       creation, the ``UBOOT_ENTRYPOINT`` variable is passed as a
       command-line parameter to the ``uboot-mkimage`` utility.
 
-   UBOOT_LOADADDRESS
+   :term:`UBOOT_LOADADDRESS`
       Specifies the load address for the U-Boot image. During U-Boot image
       creation, the ``UBOOT_LOADADDRESS`` variable is passed as a
       command-line parameter to the ``uboot-mkimage`` utility.
 
-   UBOOT_LOCALVERSION
+   :term:`UBOOT_LOCALVERSION`
       Appends a string to the name of the local version of the U-Boot
       image. For example, assuming the version of the U-Boot image built
       was "2013.10", the full version string reported by U-Boot would be
@@ -8542,7 +8542,7 @@
 
          UBOOT_LOCALVERSION = "-yocto"
 
-   UBOOT_MACHINE
+   :term:`UBOOT_MACHINE`
       Specifies the value passed on the ``make`` command line when building
       a U-Boot image. The value indicates the target platform
       configuration. You typically set this variable from the machine
@@ -8551,23 +8551,15 @@
       Please see the "Selection of Processor Architecture and Board Type"
       section in the U-Boot README for valid values for this variable.
 
-   UBOOT_MAKE_TARGET
+   :term:`UBOOT_MAKE_TARGET`
       Specifies the target called in the ``Makefile``. The default target
       is "all".
 
-   UBOOT_MKIMAGE_DTCOPTS
+   :term:`UBOOT_MKIMAGE_DTCOPTS`
       Options for the device tree compiler passed to mkimage '-D'
       feature while creating FIT image in :ref:`kernel-fitimage <ref-classes-kernel-fitimage>` class.
 
-   UBOOT_RD_LOADADDRESS
-      Specifies the load address for the RAM disk image.
-      During FIT image creation, the
-      ``UBOOT_RD_LOADADDRESS`` variable is used
-      in :ref:`kernel-fitimage <ref-classes-kernel-fitimage>` class to specify the
-      load address to be used in creating the Image Tree Source for
-      the FIT image.
-
-   UBOOT_RD_ENTRYPOINT
+   :term:`UBOOT_RD_ENTRYPOINT`
       Specifies the entrypoint for the RAM disk image.
       During FIT image creation, the
       ``UBOOT_RD_ENTRYPOINT`` variable is used
@@ -8575,33 +8567,41 @@
       entrypoint to be used in creating the Image Tree Source for
       the FIT image.
 
-   UBOOT_SIGN_ENABLE
+   :term:`UBOOT_RD_LOADADDRESS`
+      Specifies the load address for the RAM disk image.
+      During FIT image creation, the
+      ``UBOOT_RD_LOADADDRESS`` variable is used
+      in :ref:`kernel-fitimage <ref-classes-kernel-fitimage>` class to specify the
+      load address to be used in creating the Image Tree Source for
+      the FIT image.
+
+   :term:`UBOOT_SIGN_ENABLE`
       Enable signing of FIT image. The default value is "0".
 
-   UBOOT_SIGN_KEYDIR
+   :term:`UBOOT_SIGN_KEYDIR`
       Location of the directory containing the RSA key and
       certificate used for signing FIT image.
 
-   UBOOT_SIGN_KEYNAME
+   :term:`UBOOT_SIGN_KEYNAME`
       The name of keys used for signing U-boot FIT image stored in
       :term:`UBOOT_SIGN_KEYDIR` directory. For e.g. dev.key key and dev.crt
       certificate stored in :term:`UBOOT_SIGN_KEYDIR` directory will have
       :term:`UBOOT_SIGN_KEYNAME` set to "dev".
 
-   UBOOT_SUFFIX
+   :term:`UBOOT_SUFFIX`
       Points to the generated U-Boot extension. For example, ``u-boot.sb``
       has a ``.sb`` extension.
 
       The default U-Boot extension is ``.bin``
 
-   UBOOT_TARGET
+   :term:`UBOOT_TARGET`
       Specifies the target used for building U-Boot. The target is passed
       directly as part of the "make" command (e.g. SPL and AIS). If you do
       not specifically set this variable, the OpenEmbedded build process
       passes and uses "all" for the target during the U-Boot building
       process.
 
-   UNKNOWN_CONFIGURE_WHITELIST
+   :term:`UNKNOWN_CONFIGURE_WHITELIST`
       Specifies a list of options that, if reported by the configure script
       as being invalid, should not generate a warning during the
       :ref:`ref-tasks-configure` task. Normally, invalid
@@ -8619,7 +8619,7 @@
       :ref:`insane <ref-classes-insane>` class and is only enabled if the
       recipe inherits the :ref:`autotools <ref-classes-autotools>` class.
 
-   UPDATERCPN
+   :term:`UPDATERCPN`
       For recipes inheriting the
       :ref:`update-rc.d <ref-classes-update-rc.d>` class, ``UPDATERCPN``
       specifies the package that contains the initscript that is enabled.
@@ -8628,7 +8628,7 @@
       install initscripts package them in the main package for the recipe,
       you rarely need to set this variable in individual recipes.
 
-   UPSTREAM_CHECK_GITTAGREGEX
+   :term:`UPSTREAM_CHECK_GITTAGREGEX`
       You can perform a per-recipe check for what the latest upstream
       source code version is by calling ``bitbake -c checkpkg`` recipe. If
       the recipe source code is provided from Git repositories, the
@@ -8642,7 +8642,7 @@
 
          UPSTREAM_CHECK_GITTAGREGEX = "git_tag_regex"
 
-   UPSTREAM_CHECK_REGEX
+   :term:`UPSTREAM_CHECK_REGEX`
       Use the ``UPSTREAM_CHECK_REGEX`` variable to specify a different
       regular expression instead of the default one when the package
       checking system is parsing the page found using
@@ -8651,7 +8651,7 @@
 
          UPSTREAM_CHECK_REGEX = "package_regex"
 
-   UPSTREAM_CHECK_URI
+   :term:`UPSTREAM_CHECK_URI`
       You can perform a per-recipe check for what the latest upstream
       source code version is by calling ``bitbake -c checkpkg`` recipe. If
       the source code is provided from tarballs, the latest version is
@@ -8663,7 +8663,7 @@
 
          UPSTREAM_CHECK_URI = "recipe_url"
 
-   USE_DEVFS
+   :term:`USE_DEVFS`
       Determines if ``devtmpfs`` is used for ``/dev`` population. The
       default value used for ``USE_DEVFS`` is "1" when no value is
       specifically set. Typically, you would set ``USE_DEVFS`` to "0" for a
@@ -8673,7 +8673,7 @@
       the Yocto Project Development Tasks Manual for information on how to
       use this variable.
 
-   USE_VT
+   :term:`USE_VT`
       When using
       :ref:`SysVinit <new-recipe-enabling-system-services>`,
       determines whether or not to run a
@@ -8687,7 +8687,7 @@
       display attached and therefore do not need virtual terminal
       functionality.
 
-   USER_CLASSES
+   :term:`USER_CLASSES`
       A list of classes to globally inherit. These classes are used by the
       OpenEmbedded build system to enable extra features (e.g.
       ``buildstats``, ``image-mklibs``, and so forth).
@@ -8700,7 +8700,7 @@
       For more information, see
       ``meta-poky/conf/local.conf.sample`` in the :term:`Source Directory`.
 
-   USERADD_ERROR_DYNAMIC
+   :term:`USERADD_ERROR_DYNAMIC`
       If set to ``error``, forces the OpenEmbedded build system to produce
       an error if the user identification (``uid``) and group
       identification (``gid``) values are not defined in any of the files
@@ -8745,7 +8745,7 @@
          This saves you from having to add static IDs for recipes that you
          know will never be built.
 
-   USERADD_GID_TABLES
+   :term:`USERADD_GID_TABLES`
       Specifies a password file to use for obtaining static group
       identification (``gid``) values when the OpenEmbedded build system
       adds a group to the system during package installation.
@@ -8768,7 +8768,7 @@
          gid
          values.
 
-   USERADD_PACKAGES
+   :term:`USERADD_PACKAGES`
       When inheriting the :ref:`useradd <ref-classes-useradd>` class,
       this variable specifies the individual packages within the recipe
       that require users and/or groups to be added.
@@ -8792,7 +8792,7 @@
          GROUPMEMS_PARAM
          variables.
 
-   USERADD_PARAM
+   :term:`USERADD_PARAM`
       When inheriting the :ref:`useradd <ref-classes-useradd>` class,
       this variable specifies for a package what parameters should pass to
       the ``useradd`` command if you add a user to the system when the
@@ -8809,7 +8809,7 @@
       standard Linux shell command ``useradd``, see
       http://linux.die.net/man/8/useradd.
 
-   USERADD_UID_TABLES
+   :term:`USERADD_UID_TABLES`
       Specifies a password file to use for obtaining static user
       identification (``uid``) values when the OpenEmbedded build system
       adds a user to the system during package installation.
@@ -8831,7 +8831,7 @@
          uid
          values.
 
-   USERADDEXTENSION
+   :term:`USERADDEXTENSION`
       When set to "useradd-staticids", causes the OpenEmbedded build system
       to base all user and group additions on a static ``passwd`` and
       ``group`` files found in :term:`BBPATH`.
@@ -8857,7 +8857,7 @@
       Additionally, you should also set the
       :term:`USERADD_ERROR_DYNAMIC` variable.
 
-   VOLATILE_LOG_DIR
+   :term:`VOLATILE_LOG_DIR`
       Specifies the persistence of the target's ``/var/log`` directory,
       which is used to house postinstall target log files.
 
@@ -8865,14 +8865,23 @@
       file is not persistent. You can override this setting by setting the
       variable to "no" to make the log directory persistent.
 
-   WARN_QA
+   :term:`WARN_QA`
       Specifies the quality assurance checks whose failures are reported as
       warnings by the OpenEmbedded build system. You set this variable in
       your distribution configuration file. For a list of the checks you
       can control with this variable, see the
       ":ref:`insane.bbclass <ref-classes-insane>`" section.
 
-   WKS_FILE_DEPENDS
+   :term:`WKS_FILE`
+      Specifies the location of the Wic kickstart file that is used by the
+      OpenEmbedded build system to create a partitioned image
+      (image\ ``.wic``). For information on how to create a partitioned
+      image, see the
+      ":ref:`dev-manual/dev-manual-common-tasks:creating partitioned images using wic`"
+      section in the Yocto Project Development Tasks Manual. For details on
+      the kickstart file format, see the ":doc:`../ref-manual/ref-kickstart`" Chapter.
+
+   :term:`WKS_FILE_DEPENDS`
       When placed in the recipe that builds your image, this variable lists
       build-time dependencies. The ``WKS_FILE_DEPENDS`` variable is only
       applicable when Wic images are active (i.e. when
@@ -8897,16 +8906,7 @@
       previous example, some-native-tool would be replaced with an actual
       native tool on which the build would depend.
 
-   WKS_FILE
-      Specifies the location of the Wic kickstart file that is used by the
-      OpenEmbedded build system to create a partitioned image
-      (image\ ``.wic``). For information on how to create a partitioned
-      image, see the
-      ":ref:`dev-manual/dev-manual-common-tasks:creating partitioned images using wic`"
-      section in the Yocto Project Development Tasks Manual. For details on
-      the kickstart file format, see the ":doc:`../ref-manual/ref-kickstart`" Chapter.
-
-   WORKDIR
+   :term:`WORKDIR`
       The pathname of the work directory in which the OpenEmbedded build
       system builds a recipe. This directory is located within the
       :term:`TMPDIR` directory structure and is specific to
@@ -8946,7 +8946,7 @@
 
          poky/build/tmp/work/qemux86-poky-linux/foo/1.3.0-r0
 
-   XSERVER
+   :term:`XSERVER`
       Specifies the packages that should be installed to provide an X
       server and drivers for the current machine, assuming your image
       directly includes ``packagegroup-core-x11-xserver`` or, perhaps
diff --git a/poky/documentation/ref-manual/ref-variables.xml b/poky/documentation/ref-manual/ref-variables.xml
deleted file mode 100644
index a506480..0000000
--- a/poky/documentation/ref-manual/ref-variables.xml
+++ /dev/null
@@ -1,16877 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<!-- Dummy chapter -->
-<chapter id='ref-variables-glos'>
-
-<title>Variables Glossary</title>
-
-<para>
-    This chapter lists common variables used in the OpenEmbedded build system and gives an overview
-    of their function and contents.
-</para>
-
-<glossary id='ref-variables-glossary'>
-
-
-    <para>
-       <link linkend='var-ABIEXTENSION'>A</link>
-       <link linkend='var-B'>B</link>
-       <link linkend='var-CACHE'>C</link>
-       <link linkend='var-D'>D</link>
-       <link linkend='var-EFI_PROVIDER'>E</link>
-       <link linkend='var-FEATURE_PACKAGES'>F</link>
-       <link linkend='var-GCCPIE'>G</link>
-       <link linkend='var-HOMEPAGE'>H</link>
-       <link linkend='var-ICECC_DISABLED'>I</link>
-<!--               <link linkend='var-glossary-j'>J</link> -->
-       <link linkend='var-KARCH'>K</link>
-       <link linkend='var-LABELS'>L</link>
-       <link linkend='var-MACHINE'>M</link>
-       <link linkend='var-NATIVELSBSTRING'>N</link>
-       <link linkend='var-OBJCOPY'>O</link>
-       <link linkend='var-P'>P</link>
-<!--               <link linkend='var-glossary-q'>Q</link> -->
-       <link linkend='var-RANLIB'>R</link>
-       <link linkend='var-S'>S</link>
-       <link linkend='var-T'>T</link>
-       <link linkend='var-UBOOT_CONFIG'>U</link>
-       <link linkend='var-VOLATILE_LOG_DIR'>V</link>
-       <link linkend='var-WARN_QA'>W</link>
-       <link linkend='var-XSERVER'>X</link>
-<!--               <link linkend='var-glossary-y'>Y</link> -->
-<!--               <link linkend='var-glossary-z'>Z</link>-->
-    </para>
-
-    <glossdiv id='var-glossary-a'><title>A</title>
-
-        <glossentry id='var-ABIEXTENSION'><glossterm>ABIEXTENSION</glossterm>
-            <info>
-                ABIEXTENSION[doc] = "Extension to the Application Binary Interface (ABI) field of the GNU canonical architecture name (e.g. "eabi")."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Extension to the Application Binary Interface (ABI)
-                    field of the GNU canonical architecture name
-                    (e.g. "eabi").
-                </para>
-
-                <para>
-                   ABI extensions are set in the machine include files.
-                   For example, the
-                   <filename>meta/conf/machine/include/arm/arch-arm.inc</filename>
-                   file sets the following extension:
-                   <literallayout class='monospaced'>
-     ABIEXTENSION = "eabi"
-                   </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ALLOW_EMPTY'><glossterm>ALLOW_EMPTY</glossterm>
-            <info>
-                ALLOW_EMPTY[doc] = "Specifies whether to produce an output package even if it is empty."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                   Specifies whether to produce an output package even if it is
-                   empty.
-                   By default, BitBake does not produce empty packages.
-                   This default behavior can cause issues when there is an
-                   <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link> or
-                   some other hard runtime requirement on the existence of the package.
-                </para>
-
-                <para>
-                   Like all package-controlling variables, you must always use them in
-                   conjunction with a package name override, as in:
-                   <literallayout class='monospaced'>
-     ALLOW_EMPTY_${PN} = "1"
-     ALLOW_EMPTY_${PN}-dev = "1"
-     ALLOW_EMPTY_${PN}-staticdev = "1"
-                   </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ALTERNATIVE'><glossterm>ALTERNATIVE</glossterm>
-            <info>
-                ALTERNATIVE[doc] = "Lists commands in a package that need an alternative binary naming scheme."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists commands in a package that need an alternative
-                    binary naming scheme.
-                    Sometimes the same command is provided in multiple packages.
-                    When this occurs, the OpenEmbedded build system needs to
-                    use the alternatives system to create a different binary
-                    naming scheme so the commands can co-exist.
-                </para>
-
-                <para>
-                    To use the variable, list out the package's commands
-                    that also exist as part of another package.
-                    For example, if the <filename>busybox</filename> package
-                    has four commands that also exist as part of another
-                    package, you identify them as follows:
-                    <literallayout class='monospaced'>
-     ALTERNATIVE_busybox = "sh sed test bracket"
-                    </literallayout>
-                    For more information on the alternatives system, see the
-                    "<link linkend='ref-classes-update-alternatives'><filename>update-alternatives.bbclass</filename></link>"
-                    section.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ALTERNATIVE_LINK_NAME'><glossterm>ALTERNATIVE_LINK_NAME</glossterm>
-            <info>
-                ALTERNATIVE_LINK_NAME[doc] = "Used by the alternatives system to map duplicated commands to actual locations."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Used by the alternatives system to map duplicated commands
-                    to actual locations.
-                    For example, if the <filename>bracket</filename> command
-                    provided by the <filename>busybox</filename> package is
-                    duplicated through another package, you must use the
-                    <filename>ALTERNATIVE_LINK_NAME</filename> variable to
-                    specify the actual location:
-                    <literallayout class='monospaced'>
-     ALTERNATIVE_LINK_NAME[bracket] = "/usr/bin/["
-                    </literallayout>
-                </para>
-
-                <para>
-                    In this example, the binary for the
-                    <filename>bracket</filename> command (i.e.
-                    <filename>[</filename>) from the
-                    <filename>busybox</filename> package resides in
-                    <filename>/usr/bin/</filename>.
-                    <note>
-                        If <filename>ALTERNATIVE_LINK_NAME</filename> is not
-                        defined, it defaults to
-                        <filename>${bindir}/<replaceable>name</replaceable></filename>.
-                    </note>
-                </para>
-
-                <para>
-                    For more information on the alternatives system, see the
-                    "<link linkend='ref-classes-update-alternatives'><filename>update-alternatives.bbclass</filename></link>"
-                    section.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ALTERNATIVE_PRIORITY'><glossterm>ALTERNATIVE_PRIORITY</glossterm>
-            <info>
-                ALTERNATIVE_PRIORITY[doc] = "Used by the alternatives system to create default priorities for duplicated commands."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Used by the alternatives system to create default
-                    priorities for duplicated commands.
-                    You can use the variable to create a single default
-                    regardless of the command name or package, a default for
-                    specific duplicated commands regardless of the package, or
-                    a default for specific commands tied to particular packages.
-                    Here are the available syntax forms:
-                    <literallayout class='monospaced'>
-     ALTERNATIVE_PRIORITY = "<replaceable>priority</replaceable>"
-     ALTERNATIVE_PRIORITY[<replaceable>name</replaceable>] = "<replaceable>priority</replaceable>"
-     ALTERNATIVE_PRIORITY_<replaceable>pkg</replaceable>[<replaceable>name</replaceable>] = "<replaceable>priority</replaceable>"
-                    </literallayout>
-                </para>
-
-                <para>
-                    For more information on the alternatives system, see the
-                    "<link linkend='ref-classes-update-alternatives'><filename>update-alternatives.bbclass</filename></link>"
-                    section.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ALTERNATIVE_TARGET'><glossterm>ALTERNATIVE_TARGET</glossterm>
-            <info>
-                ALTERNATIVE_TARGET[doc] = "Used by the alternatives system to create default link locations for duplicated commands."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Used by the alternatives system to create default link
-                    locations for duplicated commands.
-                    You can use the variable to create a single default
-                    location for all duplicated commands regardless of the
-                    command name or package, a default for
-                    specific duplicated commands regardless of the package, or
-                    a default for specific commands tied to particular packages.
-                    Here are the available syntax forms:
-                    <literallayout class='monospaced'>
-     ALTERNATIVE_TARGET = "<replaceable>target</replaceable>"
-     ALTERNATIVE_TARGET[<replaceable>name</replaceable>] = "<replaceable>target</replaceable>"
-     ALTERNATIVE_TARGET_<replaceable>pkg</replaceable>[<replaceable>name</replaceable>] = "<replaceable>target</replaceable>"
-                    </literallayout>
-                    <note>
-                        <para>
-                            If <filename>ALTERNATIVE_TARGET</filename> is not
-                            defined, it inherits the value from the
-                            <link linkend='var-ALTERNATIVE_LINK_NAME'><filename>ALTERNATIVE_LINK_NAME</filename></link>
-                            variable.
-                        </para>
-
-                        <para>
-                            If <filename>ALTERNATIVE_LINK_NAME</filename> and
-                            <filename>ALTERNATIVE_TARGET</filename> are the
-                            same, the target for
-                            <filename>ALTERNATIVE_TARGET</filename>
-                            has "<filename>.{BPN}</filename>" appended to it.
-                        </para>
-
-                        <para>
-                            Finally, if the file referenced has not been
-                            renamed, the alternatives system will rename it to
-                            avoid the need to rename alternative files in the
-                            <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-                            task while
-                            retaining support for the command if necessary.
-                        </para>
-                    </note>
-                </para>
-
-                <para>
-                    For more information on the alternatives system, see the
-                    "<link linkend='ref-classes-update-alternatives'><filename>update-alternatives.bbclass</filename></link>"
-                    section.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-APPEND'><glossterm>APPEND</glossterm>
-            <info>
-                APPEND[doc] = "An override list of append strings for target specified using LABELS."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    An override list of append strings for each target
-                    specified with
-                    <link linkend='var-LABELS'><filename>LABELS</filename></link>.
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='ref-classes-grub-efi'><filename>grub-efi</filename></link>
-                    class for more information on how this variable is used.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-AR'><glossterm>AR</glossterm>
-            <info>
-                AR[doc] = "Minimal command and arguments to run 'ar'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The minimal command and arguments used to run
-                    <filename>ar</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ARCHIVER_MODE'><glossterm>ARCHIVER_MODE</glossterm>
-            <info>
-                ARCHIVER_MODE[doc] = "Controls archive creation used when releasing source files."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When used with the
-                    <link linkend='ref-classes-archiver'><filename>archiver</filename></link>
-                    class, determines the type of information used to create
-                    a released archive.
-                    You can use this variable to create archives of patched
-                    source, original source, configured source, and so forth
-                    by employing the following variable flags (varflags):
-                    <literallayout class='monospaced'>
-     ARCHIVER_MODE[src] = "original"                 # Uses original (unpacked) source
-                                                     # files.
-
-     ARCHIVER_MODE[src] = "patched"                  # Uses patched source files. This is
-                                                     # the default.
-
-     ARCHIVER_MODE[src] = "configured"               # Uses configured source files.
-
-     ARCHIVER_MODE[diff] = "1"                       # Uses patches between do_unpack and
-                                                     # do_patch.
-
-     ARCHIVER_MODE[diff-exclude] ?= "<replaceable>file</replaceable> <replaceable>file</replaceable> ..."  # Lists files and directories to
-                                                     # exclude from diff.
-
-     ARCHIVER_MODE[dumpdata] = "1"                   # Uses environment data.
-
-     ARCHIVER_MODE[recipe] = "1"                     # Uses recipe and include files.
-
-     ARCHIVER_MODE[srpm] = "1"                       # Uses RPM package files.
-                    </literallayout>
-                    For information on how the variable works, see the
-                    <filename>meta/classes/archiver.bbclass</filename> file
-                    in the
-                    <link linkend='source-directory'>Source Directory</link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-AS'><glossterm>AS</glossterm>
-            <info>
-                AS[doc] = "Minimal command and arguments to run the assembler."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Minimal command and arguments needed to run the
-                    assembler.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ASSUME_PROVIDED'><glossterm>ASSUME_PROVIDED</glossterm>
-            <info>
-                ASSUME_PROVIDED[doc] = "Lists recipe names (PN values) BitBake does not attempt to build."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists recipe names
-                    (<link linkend='var-PN'><filename>PN</filename></link>
-                    values) BitBake does not attempt to build.
-                    Instead, BitBake assumes these recipes have already been
-                    built.
-                </para>
-
-                <para>
-                    In OpenEmbedded-Core, <filename>ASSUME_PROVIDED</filename>
-                    mostly specifies native tools that should not be built.
-                    An example is <filename>git-native</filename>, which when
-                    specified, allows for the Git binary from the host to be
-                    used rather than building <filename>git-native</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ASSUME_SHLIBS'><glossterm>ASSUME_SHLIBS</glossterm>
-            <info>
-                ASSUME_SHLIBS[doc] = "Provides additional shlibs provider mapping information, which adds to or overwrites the information provided automatically by the system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Provides additional <filename>shlibs</filename> provider
-                    mapping information, which adds to or overwrites the
-                    information provided automatically by the system.
-                    Separate multiple entries using spaces.
-                </para>
-
-                <para>
-                    As an example, use the following form to add an
-                    <filename>shlib</filename> provider of
-                    <replaceable>shlibname</replaceable> in
-                    <replaceable>packagename</replaceable> with the optional
-                    <replaceable>version</replaceable>:
-                    <literallayout class='monospaced'>
-     <replaceable>shlibname:packagename</replaceable>[_<replaceable>version</replaceable>]
-                    </literallayout>
-                </para>
-
-                <para>
-                    Here is an example that adds a shared library named
-                    <filename>libEGL.so.1</filename> as being provided by
-                    the <filename>libegl-implementation</filename> package:
-                    <literallayout class='monospaced'>
-     ASSUME_SHLIBS = "libEGL.so.1:libegl-implementation"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-AUTHOR'><glossterm>AUTHOR</glossterm>
-            <info>
-                AUTHOR[doc] = "Email address used to contact the original author or authors in order to send patches and forward bugs."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The email address used to contact the original author
-                    or authors in order to send patches and forward bugs.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-AUTO_LIBNAME_PKGS'><glossterm>AUTO_LIBNAME_PKGS</glossterm>
-            <info>
-                AUTO_LIBNAME_PKGS[doc] = "Specifies which packages should be checked for libraries and renamed according to Debian library package naming."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When the
-                    <link linkend='ref-classes-debian'><filename>debian</filename></link>
-                    class is inherited, which is the default behavior,
-                    <filename>AUTO_LIBNAME_PKGS</filename> specifies which
-                    packages should be checked for libraries and renamed
-                    according to Debian library package naming.
-                </para>
-
-                <para>
-                    The default value is "${PACKAGES}", which causes the
-                    debian class to act on all packages that are
-                    explicitly generated by the recipe.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-AUTO_SYSLINUXMENU'><glossterm>AUTO_SYSLINUXMENU</glossterm>
-            <info>
-                AUTO_SYSLINUXMENU[doc] = "Enables creating an automatic menu for the syslinux bootloader."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Enables creating an automatic menu for the syslinux
-                    bootloader.
-                    You must set this variable in your recipe.
-                    The
-                    <link linkend='ref-classes-syslinux'><filename>syslinux</filename></link>
-                    class checks this variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-AUTOREV'><glossterm>AUTOREV</glossterm>
-            <info>
-                AUTOREV[doc] = "When SRCREV is set to the value of this variable, it specifies to use the latest source revision in the repository."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When
-                    <filename><link linkend='var-SRCREV'>SRCREV</link></filename>
-                    is set to the value of this variable, it specifies to use
-                    the latest source revision in the repository.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     SRCREV = "${AUTOREV}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    If you use the previous statement to retrieve the latest
-                    version of software, you need to be sure
-                    <link linkend='var-PV'><filename>PV</filename></link>
-                    contains
-                    <filename>${</filename><link linkend='var-SRCPV'><filename>SRCPV</filename></link><filename>}</filename>.
-                    For example, suppose you have a kernel recipe that
-                    inherits the
-                    <link linkend='ref-classes-kernel'>kernel</link> class
-                    and you use the previous statement.
-                    In this example, <filename>${SRCPV}</filename> does not
-                    automatically get into <filename>PV</filename>.
-                    Consequently, you need to change <filename>PV</filename>
-                    in your recipe so that it does contain
-                    <filename>${SRCPV}</filename>.
-                </para>
-
-                <para>
-                    For more information see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#automatically-incrementing-a-binary-package-revision-number'>Automatically Incrementing a Binary Package Revision Number</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-AVAILABLE_LICENSES'><glossterm>AVAILABLE_LICENSES</glossterm>
-            <info>
-                AVAILABLE_LICENSES[doc] = "List of licenses found in the directories specified by COMMON_LICENSE_DIR and LICENSE_PATH."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-
-                    List of licenses found in the directories specified
-                    by <link linkend='var-COMMON_LICENSE_DIR'><filename>COMMON_LICENSE_DIR</filename></link>
-                    and <link linkend='var-LICENSE_PATH'><filename>LICENSE_PATH</filename></link>.
-
-                    <note>
-                        It is assumed that all changes
-                        to <filename>COMMON_LICENSE_DIR</filename>
-                        and <filename>LICENSE_PATH</filename> have been done
-                        before <filename>AVAILABLE_LICENSES</filename> is
-                        defined
-                        (in <link linkend='ref-classes-license'>license.bbclass</link>).
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-AVAILTUNES'><glossterm>AVAILTUNES</glossterm>
-            <info>
-                AVAILTUNES[doc] = "The list of defined CPU and Application Binary Interface (ABI) tunings (i.e.  "tunes") available for use by the OpenEmbedded build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The list of defined CPU and Application Binary Interface
-                    (ABI) tunings (i.e.  "tunes") available for use by the
-                    OpenEmbedded build system.
-                </para>
-
-                <para>
-                    The list simply presents the tunes that are available.
-                    Not all tunes may be compatible with a particular
-                    machine configuration, or with each other in a
-                    <ulink url='&YOCTO_DOCS_DEV_URL;#combining-multiple-versions-library-files-into-one-image'>Multilib</ulink>
-                    configuration.
-                </para>
-
-                <para>
-                    To add a tune to the list, be sure to append it with
-                    spaces using the "+=" BitBake operator.
-                    Do not simply replace the list by using the "=" operator.
-                    See the
-                    "<ulink url='&YOCTO_DOCS_BB_URL;#basic-syntax'>Basic Syntax</ulink>"
-                    section in the BitBake User Manual for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-b'><title>B</title>
-
-        <glossentry id='var-B'><glossterm>B</glossterm>
-            <info>
-                B[doc] = "The Build Directory. The OpenEmbedded build system places generated objects into the Build Directory during a recipe's build process."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The directory within the
-                    <link linkend='build-directory'>Build Directory</link>
-                    in which the OpenEmbedded build system places generated
-                    objects during a recipe's build process.
-                    By default, this directory is the same as the <link linkend='var-S'><filename>S</filename></link>
-                    directory, which is defined as:
-                    <literallayout class='monospaced'>
-     S = "${WORKDIR}/${BP}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    You can separate the (<filename>S</filename>) directory
-                    and the directory pointed to by the <filename>B</filename>
-                    variable.
-                    Most Autotools-based recipes support separating these
-                    directories.
-                    The build system defaults to using separate directories for
-                    <filename>gcc</filename> and some kernel recipes.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BAD_RECOMMENDATIONS'><glossterm>BAD_RECOMMENDATIONS</glossterm>
-            <info>
-                BAD_RECOMMENDATIONS[doc] = "A list of packages not to install despite being recommended by a recipe. Support for this variable exists only when using the IPK packaging backend."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists "recommended-only" packages to not install.
-                    Recommended-only packages are packages installed only
-                    through the
-                    <link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link>
-                    variable.
-                    You can prevent any of these "recommended" packages from
-                    being installed by listing them with the
-                    <filename>BAD_RECOMMENDATIONS</filename> variable:
-                    <literallayout class='monospaced'>
-     BAD_RECOMMENDATIONS = "<replaceable>package_name</replaceable> <replaceable>package_name</replaceable> <replaceable>package_name</replaceable> ..."
-                    </literallayout>
-                </para>
-
-                <para>
-                    You can set this variable globally in your
-                    <filename>local.conf</filename> file or you can attach it to
-                    a specific image recipe by using the recipe name override:
-                    <literallayout class='monospaced'>
-     BAD_RECOMMENDATIONS_pn-<replaceable>target_image</replaceable> = "<replaceable>package_name</replaceable>"
-                    </literallayout>
-                </para>
-
-                <para>
-                    It is important to realize that if you choose to not install
-                    packages using this variable and some other packages are
-                    dependent on them (i.e. listed in a recipe's
-                    <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>
-                    variable), the OpenEmbedded build system ignores your
-                    request and will install the packages to avoid dependency
-                    errors.
-                </para>
-
-                <para>
-                    Support for this variable exists only when using the
-                    IPK and RPM packaging backend.
-                    Support does not exist for DEB.
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='var-NO_RECOMMENDATIONS'><filename>NO_RECOMMENDATIONS</filename></link>
-                    and the
-                    <link linkend='var-PACKAGE_EXCLUDE'><filename>PACKAGE_EXCLUDE</filename></link>
-                    variables for related information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BASE_LIB'><glossterm>BASE_LIB</glossterm>
-            <info>
-                BASE_LIB[doc] = "The library directory name for the CPU or Application Binary Interface (ABI) tune."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The library directory name for the CPU or Application
-                    Binary Interface (ABI) tune.
-                    The <filename>BASE_LIB</filename> applies only in the
-                    Multilib context.
-                    See the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#combining-multiple-versions-library-files-into-one-image'>Combining Multiple Versions of Library Files into One Image</ulink>"
-                    section in the Yocto Project Development Tasks Manual for
-                    information on Multilib.
-                </para>
-
-                <para>
-                    The <filename>BASE_LIB</filename> variable is defined in
-                    the machine include files in the
-                    <link linkend='source-directory'>Source Directory</link>.
-                    If Multilib is not being used, the value defaults to "lib".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BASE_WORKDIR'><glossterm>BASE_WORKDIR</glossterm>
-            <info>
-                BASE_WORKDIR[doc] = "Points to the base of the work directory for all recipes."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the base of the work directory for all recipes.
-                    The default value is "${TMPDIR}/work".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BB_ALLOWED_NETWORKS'><glossterm>BB_ALLOWED_NETWORKS</glossterm>
-            <info>
-                BB_ALLOWED_NETWORKS[doc] = "A list of hosts that the fetcher is allowed to use to obtain the required source code."
-            </info>
-            <glossdef>
-                <para>
-                    Specifies a space-delimited list of hosts that the fetcher
-                    is allowed to use to obtain the required source code.
-                    Following are considerations surrounding this variable:
-                    <itemizedlist>
-                        <listitem><para>
-                            This host list is only used if
-                            <filename>BB_NO_NETWORK</filename> is either not
-                            set or set to "0".
-                            </para></listitem>
-                        <listitem><para>
-                            Limited support for wildcard matching against the
-                            beginning of host names exists.
-                            For example, the following setting matches
-                            <filename>git.gnu.org</filename>,
-                            <filename>ftp.gnu.org</filename>, and
-                            <filename>foo.git.gnu.org</filename>.
-                            <literallayout class='monospaced'>
-     BB_ALLOWED_NETWORKS = "*.gnu.org"
-                            </literallayout>
-                            <note><title>Important</title>
-                                <para>The use of the "<filename>*</filename>"
-                                character only works at the beginning of
-                                a host name and it must be isolated from
-                                the remainder of the host name.
-                                You cannot use the wildcard character in any
-                                other location of the name or combined with
-                                the front part of the name.</para>
-
-                                <para>For example,
-                                <filename>*.foo.bar</filename> is supported,
-                                while <filename>*aa.foo.bar</filename> is not.
-                                </para>
-                            </note>
-                            </para></listitem>
-                        <listitem><para>
-                            Mirrors not in the host list are skipped and
-                            logged in debug.
-                            </para></listitem>
-                        <listitem><para>
-                            Attempts to access networks not in the host list
-                            cause a failure.
-                            </para></listitem>
-                    </itemizedlist>
-                    Using <filename>BB_ALLOWED_NETWORKS</filename> in
-                    conjunction with
-                    <link linkend='var-PREMIRRORS'><filename>PREMIRRORS</filename></link>
-                    is very useful.
-                    Adding the host you want to use to
-                    <filename>PREMIRRORS</filename> results in the source code
-                    being fetched from an allowed location and avoids raising
-                    an error when a host that is not allowed is in a
-                    <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>
-                    statement.
-                    This is because the fetcher does not attempt to use the
-                    host listed in <filename>SRC_URI</filename> after a
-                    successful fetch from the
-                    <filename>PREMIRRORS</filename> occurs.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BB_DANGLINGAPPENDS_WARNONLY'><glossterm>BB_DANGLINGAPPENDS_WARNONLY</glossterm>
-            <info>
-                BB_DANGLINGAPPENDS_WARNONLY[doc] = "Defines how BitBake handles situations where an append file (.bbappend) has no corresponding recipe file (.bb)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines how BitBake handles situations where an append
-                    file (<filename>.bbappend</filename>) has no
-                    corresponding recipe file (<filename>.bb</filename>).
-                    This condition often occurs when layers get out of sync
-                    (e.g. <filename>oe-core</filename> bumps a
-                    recipe version and the old recipe no longer exists and the
-                    other layer has not been updated to the new version
-                    of the recipe yet).
-                </para>
-
-                <para>
-                    The default fatal behavior is safest because it is
-                    the sane reaction given something is out of sync.
-                    It is important to realize when your changes are no longer
-                    being applied.
-                </para>
-
-                <para>
-                    You can change the default behavior by setting this
-                    variable to "1", "yes", or "true"
-                    in your <filename>local.conf</filename> file, which is
-                    located in the
-                    <link linkend='build-directory'>Build Directory</link>:
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     BB_DANGLINGAPPENDS_WARNONLY = "1"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BB_DISKMON_DIRS'><glossterm>BB_DISKMON_DIRS</glossterm>
-            <info>
-                BB_DISKMON_DIRS[doc] = "Monitors disk space and available inodes during the build and allows you to control the build based on these parameters."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Monitors disk space and available inodes during the build
-                    and allows you to control the build based on these
-                    parameters.
-                </para>
-
-                <para>
-                    Disk space monitoring is disabled by default.
-                    To enable monitoring, add the <filename>BB_DISKMON_DIRS</filename>
-                    variable to your <filename>conf/local.conf</filename> file found in the
-                    <link linkend='build-directory'>Build Directory</link>.
-                    Use the following form:
-                    <literallayout class='monospaced'>
-     BB_DISKMON_DIRS = "<replaceable>action</replaceable>,<replaceable>dir</replaceable>,<replaceable>threshold</replaceable> [...]"
-
-     where:
-
-        <replaceable>action</replaceable> is:
-           ABORT:     Immediately abort the build when
-                      a threshold is broken.
-           STOPTASKS: Stop the build after the currently
-                      executing tasks have finished when
-                      a threshold is broken.
-           WARN:      Issue a warning but continue the
-                      build when a threshold is broken.
-                      Subsequent warnings are issued as
-                      defined by the BB_DISKMON_WARNINTERVAL
-                      variable, which must be defined in
-                      the conf/local.conf file.
-
-        <replaceable>dir</replaceable> is:
-           Any directory you choose. You can specify one or
-           more directories to monitor by separating the
-           groupings with a space.  If two directories are
-           on the same device, only the first directory
-           is monitored.
-
-        <replaceable>threshold</replaceable> is:
-           Either the minimum available disk space,
-           the minimum number of free inodes, or
-           both.  You must specify at least one.  To
-           omit one or the other, simply omit the value.
-           Specify the threshold using G, M, K for Gbytes,
-           Mbytes, and Kbytes, respectively. If you do
-           not specify G, M, or K, Kbytes is assumed by
-           default.  Do not use GB, MB, or KB.
-                    </literallayout>
-                </para>
-
-                <para>
-                    Here are some examples:
-                    <literallayout class='monospaced'>
-     BB_DISKMON_DIRS = "ABORT,${TMPDIR},1G,100K WARN,${SSTATE_DIR},1G,100K"
-     BB_DISKMON_DIRS = "STOPTASKS,${TMPDIR},1G"
-     BB_DISKMON_DIRS = "ABORT,${TMPDIR},,100K"
-                    </literallayout>
-                    The first example works only if you also provide
-                    the <link linkend='var-BB_DISKMON_WARNINTERVAL'><filename>BB_DISKMON_WARNINTERVAL</filename></link> variable
-                    in the <filename>conf/local.conf</filename>.
-                    This example causes the build system to immediately
-                    abort when either the disk space in <filename>${TMPDIR}</filename> drops
-                    below 1 Gbyte or the available free inodes drops below
-                    100 Kbytes.
-                    Because two directories are provided with the variable, the
-                    build system also issue a
-                    warning when the disk space in the
-                    <filename>${SSTATE_DIR}</filename> directory drops
-                    below 1 Gbyte or the number of free inodes drops
-                    below 100 Kbytes.
-                    Subsequent warnings are issued during intervals as
-                    defined by the <filename>BB_DISKMON_WARNINTERVAL</filename>
-                    variable.
-                </para>
-
-                <para>
-                    The second example stops the build after all currently
-                    executing tasks complete when the minimum disk space
-                    in the <filename>${<link linkend='var-TMPDIR'>TMPDIR</link>}</filename>
-                    directory drops below 1 Gbyte.
-                    No disk monitoring occurs for the free inodes in this case.
-                </para>
-
-                <para>
-                    The final example immediately aborts the build when the
-                    number of free inodes in the <filename>${TMPDIR}</filename> directory
-                    drops below 100 Kbytes.
-                    No disk space monitoring for the directory itself occurs
-                    in this case.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BB_DISKMON_WARNINTERVAL'><glossterm>BB_DISKMON_WARNINTERVAL</glossterm>
-            <info>
-                BB_DISKMON_WARNINTERVAL[doc] = "Defines the disk space and free inode warning intervals. To set these intervals, define the variable in the conf/local.conf file in the Build Directory."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines the disk space and free inode warning intervals.
-                    To set these intervals, define the variable in your
-                    <filename>conf/local.conf</filename> file in the
-                    <link linkend='build-directory'>Build Directory</link>.
-                </para>
-
-                <para>
-                    If you are going to use the
-                    <filename>BB_DISKMON_WARNINTERVAL</filename> variable, you must
-                    also use the
-                    <link linkend='var-BB_DISKMON_DIRS'><filename>BB_DISKMON_DIRS</filename></link> variable
-                    and define its action as "WARN".
-                    During the build, subsequent warnings are issued each time
-                    disk space or number of free inodes further reduces by
-                    the respective interval.
-                </para>
-
-                <para>
-                    If you do not provide a <filename>BB_DISKMON_WARNINTERVAL</filename>
-                    variable and you do use <filename>BB_DISKMON_DIRS</filename> with
-                    the "WARN" action, the disk monitoring interval defaults to
-                    the following:
-                    <literallayout class='monospaced'>
-     BB_DISKMON_WARNINTERVAL = "50M,5K"
-                    </literallayout>
-                </para>
-
-                <para>
-                    When specifying the variable in your configuration file,
-                    use the following form:
-                    <literallayout class='monospaced'>
-     BB_DISKMON_WARNINTERVAL = "<replaceable>disk_space_interval</replaceable>,<replaceable>disk_inode_interval</replaceable>"
-
-     where:
-
-        <replaceable>disk_space_interval</replaceable> is:
-           An interval of memory expressed in either
-           G, M, or K for Gbytes, Mbytes, or Kbytes,
-           respectively. You cannot use GB, MB, or KB.
-
-        <replaceable>disk_inode_interval</replaceable> is:
-           An interval of free inodes expressed in either
-           G, M, or K for Gbytes, Mbytes, or Kbytes,
-           respectively. You cannot use GB, MB, or KB.
-                    </literallayout>
-                </para>
-
-                <para>
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     BB_DISKMON_DIRS = "WARN,${SSTATE_DIR},1G,100K"
-     BB_DISKMON_WARNINTERVAL = "50M,5K"
-                    </literallayout>
-                    These variables cause the OpenEmbedded build system to
-                    issue subsequent warnings each time the available
-                    disk space further reduces by 50 Mbytes or the number
-                    of free inodes further reduces by 5 Kbytes in the
-                    <filename>${SSTATE_DIR}</filename> directory.
-                    Subsequent warnings based on the interval occur each time
-                    a respective interval is reached beyond the initial warning
-                    (i.e. 1 Gbytes and 100 Kbytes).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BB_GENERATE_MIRROR_TARBALLS'><glossterm>BB_GENERATE_MIRROR_TARBALLS</glossterm>
-            <info>
-                BB_GENERATE_MIRROR_TARBALLS[doc] = "Causes tarballs of the source control repositories to be placed in the DL_DIR directory."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Causes tarballs of the source control repositories
-                    (e.g. Git repositories), including metadata, to be placed
-                    in the
-                    <link linkend='var-DL_DIR'><filename>DL_DIR</filename></link>
-                    directory.
-                </para>
-
-                <para>
-                    For performance reasons, creating and placing tarballs of
-                    these repositories is not the default action by the
-                    OpenEmbedded build system.
-                    <literallayout class='monospaced'>
-     BB_GENERATE_MIRROR_TARBALLS = "1"
-                    </literallayout>
-                    Set this variable in your <filename>local.conf</filename>
-                    file in the
-                    <link linkend='build-directory'>Build Directory</link>.
-                </para>
-
-                <para>
-                    Once you have the tarballs containing your source files,
-                    you can clean up your <filename>DL_DIR</filename>
-                    directory by deleting any Git or other source control
-                    work directories.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BB_NUMBER_THREADS'><glossterm>BB_NUMBER_THREADS</glossterm>
-            <info>
-                BB_NUMBER_THREADS[doc] = "The maximum number of tasks BitBake should run in parallel at any one time. This variable is automatically configured to be equal to the number of build system cores."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The maximum number of tasks BitBake should run in parallel
-                    at any one time.
-                    The OpenEmbedded build system automatically configures
-                    this variable to be equal to the number of cores on the
-                    build system.
-                    For example, a system with a dual core processor that
-                    also uses hyper-threading causes the
-                    <filename>BB_NUMBER_THREADS</filename> variable to default
-                    to "4".
-                </para>
-
-                <para>
-                    For single socket systems (i.e. one CPU), you should not
-                    have to override this variable to gain optimal parallelism
-                    during builds.
-                    However, if you have very large systems that employ
-                    multiple physical CPUs, you might want to make sure the
-                    <filename>BB_NUMBER_THREADS</filename> variable is not
-                    set higher than "20".
-                </para>
-
-                <para>
-                    For more information on speeding up builds, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#speeding-up-a-build'>Speeding Up a Build</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BB_SERVER_TIMEOUT'><glossterm>BB_SERVER_TIMEOUT</glossterm>
-            <info>
-                BB_SERVER_TIMEOUT [doc] = "Specifies the time (in seconds) after which to unload the BitBake server due to inactivity."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the time (in seconds) after which to unload the
-                    BitBake server due to inactivity.
-                    Set <filename>BB_SERVER_TIMEOUT</filename> to determine how
-                    long the BitBake server stays resident between invocations.
-                </para>
-
-                <para>
-                    For example, the following statement in your
-                    <filename>local.conf</filename> file instructs the server
-                    to be unloaded after 20 seconds of inactivity:
-                    <literallayout class='monospaced'>
-     BB_SERVER_TIMEOUT = "20"
-                    </literallayout>
-                    If you want the server to never be unloaded, set
-                    <filename>BB_SERVER_TIMEOUT</filename> to "-1".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BBCLASSEXTEND'><glossterm>BBCLASSEXTEND</glossterm>
-            <info>
-                BBCLASSEXTEND[doc] = "Allows you to extend a recipe so that it builds variants of the software. Common variants for recipes are 'native', 'cross', 'nativesdk', and multilibs."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Allows you to extend a recipe so that it builds variants of the software.
-                    Common variants for recipes exist such as "natives" like <filename>quilt-native</filename>,
-                    which is a copy of Quilt built to run on the build system;
-                    "crosses" such as <filename>gcc-cross</filename>,
-                    which is a compiler built to run on the build machine but produces binaries
-                    that run on the target <link linkend='var-MACHINE'><filename>MACHINE</filename></link>;
-                    "nativesdk", which targets the SDK machine instead of <filename>MACHINE</filename>;
-                    and "mulitlibs" in the form "<filename>multilib:</filename><replaceable>multilib_name</replaceable>".
-                </para>
-
-                <para>
-                    To build a different variant of the recipe with a minimal amount of code, it usually
-                    is as simple as adding the following to your recipe:
-                    <literallayout class='monospaced'>
-     BBCLASSEXTEND =+ "native nativesdk"
-     BBCLASSEXTEND =+ "multilib:<replaceable>multilib_name</replaceable>"
-                    </literallayout>
-                    <note>
-                        <para>
-                        Internally, the <filename>BBCLASSEXTEND</filename>
-                        mechanism generates recipe variants by rewriting
-                        variable values and applying overrides such as
-                        <filename>_class-native</filename>.
-                        For example, to generate a native version of a recipe,
-                        a
-                        <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>
-                        on "foo" is rewritten to a <filename>DEPENDS</filename>
-                        on "foo-native".
-                        </para>
-
-                        <para>
-                        Even when using <filename>BBCLASSEXTEND</filename>, the
-                        recipe is only parsed once.
-                        Parsing once adds some limitations.
-                        For example, it is not possible to
-                        include a different file depending on the variant,
-                        since <filename>include</filename> statements are
-                        processed when the recipe is parsed.
-                        </para>
-                    </note>
-                </para>
-             </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BBFILE_COLLECTIONS'><glossterm>BBFILE_COLLECTIONS</glossterm>
-            <info>
-                BBFILE_COLLECTIONS[doc] = "Lists the names of configured layers. These names are used to find the other BBFILE_* variables."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists the names of configured layers.
-                    These names are used to find the other <filename>BBFILE_*</filename>
-                    variables.
-                    Typically, each layer will append its name to this variable in its
-                    <filename>conf/layer.conf</filename> file.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BBFILE_PATTERN'><glossterm>BBFILE_PATTERN</glossterm>
-            <info>
-                BBFILE_PATTERN[doc] = "Variable that expands to match files from BBFILES in a particular layer. This variable is used in the layer.conf file and must be suffixed with the name of a layer."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Variable that expands to match files from
-                    <link linkend='var-BBFILES'><filename>BBFILES</filename></link>
-                    in a particular layer.
-                    This variable is used in the <filename>conf/layer.conf</filename> file and must
-                    be suffixed with the name of the specific layer (e.g.
-                    <filename>BBFILE_PATTERN_emenlow</filename>).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BBFILE_PRIORITY'><glossterm>BBFILE_PRIORITY</glossterm>
-            <info>
-                BBFILE_PRIORITY[doc] = "Assigns the priority for recipe files in each layer. Setting this variable allows you to prioritize a layer against other layers that contain the same recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Assigns the priority for recipe files in each layer.
-                </para>
-
-                <para>
-                    This variable is useful in situations where the same recipe appears in
-                    more than one layer.
-                    Setting this variable allows you to prioritize a
-                    layer against other layers that contain the same recipe - effectively
-                    letting you control the precedence for the multiple layers.
-                    The precedence established through this variable stands regardless of a
-                    recipe's version
-                    (<link linkend='var-PV'><filename>PV</filename></link> variable).
-                    For example, a layer that has a recipe with a higher <filename>PV</filename> value but for
-                    which the <filename>BBFILE_PRIORITY</filename> is set to have a lower precedence still has a
-                    lower precedence.
-                </para>
-
-                <para>
-                    A larger value for the <filename>BBFILE_PRIORITY</filename> variable results in a higher
-                    precedence.
-                    For example, the value 6 has a higher precedence than the value 5.
-                    If not specified, the <filename>BBFILE_PRIORITY</filename> variable is set based on layer
-                    dependencies (see the
-                    <filename><link linkend='var-LAYERDEPENDS'>LAYERDEPENDS</link></filename> variable for
-                    more information.
-                    The default priority, if unspecified
-                    for a layer with no dependencies, is the lowest defined priority + 1
-                    (or 1 if no priorities are defined).
-                </para>
-                <tip>
-                    You can use the command <filename>bitbake-layers show-layers</filename> to list
-                    all configured layers along with their priorities.
-                </tip>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BBFILES'><glossterm>BBFILES</glossterm>
-            <info>
-                BBFILES[doc] = "A space-separated list of recipe files BitBake uses to build software."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A space-separated list of recipe files BitBake uses to
-                    build software.
-                </para>
-
-                <para>
-                    When specifying recipe files, you can pattern match using
-                    Python's
-                    <ulink url='https://docs.python.org/3/library/glob.html'><filename>glob</filename></ulink>
-                    syntax.
-                    For details on the syntax, see the documentation by
-                    following the previous link.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BBFILES_DYNAMIC'><glossterm>BBFILES_DYNAMIC</glossterm>
-            <info>
-                BBFILES_DYNAMIC[doc] = "Activates content when identified layers are present."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Activates content when identified layers are present.
-                    You identify the layers by the collections that the layers
-                    define.
-                </para>
-
-                <para>
-                    Use the <filename>BBFILES_DYNAMIC</filename> variable to
-                    avoid <filename>.bbappend</filename> files whose
-                    corresponding <filename>.bb</filename> file is in a layer
-                    that attempts to modify other layers through
-                    <filename>.bbappend</filename> but does not want to
-                    introduce a hard dependency on those other layers.
-                </para>
-
-                <para>
-                    Use the following form for
-                    <filename>BBFILES_DYNAMIC</filename>:
-                    <literallayout class='monospaced'>
-     <replaceable>collection_name</replaceable>:<replaceable>filename_pattern</replaceable>
-                    </literallayout>
-                    The following example identifies two collection names and
-                    two filename patterns:
-                    <literallayout class='monospaced'>
-     BBFILES_DYNAMIC += " \
-         clang-layer:${LAYERDIR}/bbappends/meta-clang/*/*/*.bbappend \
-         core:${LAYERDIR}/bbappends/openembedded-core/meta/*/*/*.bbappend \
-     "
-                    </literallayout>
-                    This next example shows an error message that occurs
-                    because invalid entries are found, which cause parsing to
-                    abort:
-                    <literallayout class='monospaced'>
-     ERROR: BBFILES_DYNAMIC entries must be of the form &lt;collection name&gt;:&lt;filename pattern&gt;, not:
-         /work/my-layer/bbappends/meta-security-isafw/*/*/*.bbappend
-         /work/my-layer/bbappends/openembedded-core/meta/*/*/*.bbappend
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BBINCLUDELOGS'><glossterm>BBINCLUDELOGS</glossterm>
-            <info>
-                BBINCLUDELOGS[doc] = "Variable that controls how BitBake displays logs on build failure."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Variable that controls how BitBake displays logs on build failure.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BBINCLUDELOGS_LINES'><glossterm>BBINCLUDELOGS_LINES</glossterm>
-            <info>
-                BBINCLUDELOGS_LINES[doc] = "Amount of log lines printed on failure."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    If
-                    <link linkend='var-BBINCLUDELOGS'><filename>BBINCLUDELOGS</filename></link>
-                    is set, specifies the maximum number of lines from the
-                    task log file to print when reporting a failed task.
-                    If you do not set <filename>BBINCLUDELOGS_LINES</filename>,
-                    the entire log is printed.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BBLAYERS'><glossterm>BBLAYERS</glossterm>
-            <info>
-                BBLAYERS[doc] = "Lists the layers to enable during the build. This variable is defined in the bblayers.conf configuration file."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists the layers to enable during the build.
-                    This variable is defined in the <filename>bblayers.conf</filename> configuration
-                    file in the
-                    <link linkend='build-directory'>Build Directory</link>.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     BBLAYERS = " \
-       /home/scottrif/poky/meta \
-       /home/scottrif/poky/meta-poky \
-       /home/scottrif/poky/meta-yocto-bsp \
-       /home/scottrif/poky/meta-mykernel \
-       "
-                    </literallayout>
-                </para>
-
-                <para>
-                    This example enables four layers, one of which is a custom, user-defined layer
-                    named <filename>meta-mykernel</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BBMASK'><glossterm>BBMASK</glossterm>
-            <info>
-                BBMASK[doc] = "Prevents BitBake from processing specific recipes or recipe append files."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Prevents BitBake from processing recipes and recipe
-                    append files.
-                </para>
-
-                <para>
-                    You can use the <filename>BBMASK</filename> variable
-                    to "hide" these <filename>.bb</filename> and
-                    <filename>.bbappend</filename> files.
-                    BitBake ignores any recipe or recipe append files that
-                    match any of the expressions.
-                    It is as if BitBake does not see them at all.
-                    Consequently, matching files are not parsed or otherwise
-                    used by BitBake.
-                </para>
-
-                <para>
-                    The values you provide are passed to Python's regular
-                    expression compiler.
-                    Consequently, the syntax follows Python's Regular
-                    Expression (re) syntax.
-                    The expressions are compared against the full paths to
-                    the files.
-                    For complete syntax information, see Python's
-                    documentation at
-                    <ulink url='http://docs.python.org/3/library/re.html#re'></ulink>.
-                </para>
-
-                <para>
-                    The following example uses a complete regular expression
-                    to tell BitBake to ignore all recipe and recipe append
-                    files in the <filename>meta-ti/recipes-misc/</filename>
-                    directory:
-                    <literallayout class='monospaced'>
-     BBMASK = "meta-ti/recipes-misc/"
-                    </literallayout>
-                    If you want to mask out multiple directories or recipes,
-                    you can specify multiple regular expression fragments.
-                    This next example masks out multiple directories and
-                    individual recipes:
-                    <literallayout class='monospaced'>
-     BBMASK += "/meta-ti/recipes-misc/ meta-ti/recipes-ti/packagegroup/"
-     BBMASK += "/meta-oe/recipes-support/"
-     BBMASK += "/meta-foo/.*/openldap"
-     BBMASK += "opencv.*\.bbappend"
-     BBMASK += "lzma"
-                    </literallayout>
-                    <note>
-                        When specifying a directory name, use the trailing
-                        slash character to ensure you match just that directory
-                        name.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BBMULTICONFIG'><glossterm>BBMULTICONFIG</glossterm>
-            <info>
-                BBMULTICONFIG[doc] = "Specifies each additional separate configuration when you are building targets with multiple configurations."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies each additional separate configuration when you
-                    are building targets with multiple configurations.
-                    Use this variable in your
-                    <filename>conf/local.conf</filename> configuration file.
-                    Specify a <replaceable>multiconfigname</replaceable> for
-                    each configuration file you are using.
-                    For example, the following line specifies three
-                    configuration files:
-                    <literallayout class='monospaced'>
-     BBMULTICONFIG = "configA configB configC"
-                    </literallayout>
-                    Each configuration file you use must reside in the
-                    <link linkend='build-directory'>Build Directory</link>
-                    <filename>conf/multiconfig</filename> directory
-                    (e.g.
-                    <replaceable>build_directory</replaceable><filename>/conf/multiconfig/configA.conf</filename>).
-                </para>
-
-                <para>
-                    For information on how to use
-                    <filename>BBMULTICONFIG</filename> in an environment that
-                    supports building targets with multiple configurations,
-                    see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-building-images-for-multiple-targets-using-multiple-configurations'>Building Images for Multiple Targets Using Multiple Configurations</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BBPATH'><glossterm>BBPATH</glossterm>
-            <info>
-                BBPATH[doc] = "Used by BitBake to locate .bbclass and configuration files. This variable is analogous to the PATH variable."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Used by BitBake to locate
-                    <filename>.bbclass</filename> and configuration files.
-                    This variable is analogous to the
-                    <filename>PATH</filename> variable.
-                    <note>
-                        If you run BitBake from a directory outside of the
-                        <link linkend='build-directory'>Build Directory</link>,
-                        you must be sure to set
-                        <filename>BBPATH</filename> to point to the
-                        Build Directory.
-                        Set the variable as you would any environment variable
-                        and then run BitBake:
-                        <literallayout class='monospaced'>
-     $ BBPATH = "<replaceable>build_directory</replaceable>"
-     $ export BBPATH
-     $ bitbake <replaceable>target</replaceable>
-                        </literallayout>
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BBSERVER'><glossterm>BBSERVER</glossterm>
-            <info>
-                BBSERVER[doc] = "Points to the BitBake remote server."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    If defined in the BitBake environment,
-                    <filename>BBSERVER</filename> points to the BitBake
-                    remote server.
-                </para>
-
-                <para>
-                    Use the following format to export the variable to the
-                    BitBake environment:
-                    <literallayout class='monospaced'>
-     export BBSERVER=localhost:$port
-                    </literallayout>
-                </para>
-
-                <para>
-                    By default, <filename>BBSERVER</filename> also appears in
-                    <ulink url='&YOCTO_DOCS_BB_URL;#var-BB_HASHBASE_WHITELIST'><filename>BB_HASHBASE_WHITELIST</filename></ulink>.
-                    Consequently, <filename>BBSERVER</filename> is excluded
-                    from checksum and dependency data.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BINCONFIG'><glossterm>BINCONFIG</glossterm>
-            <info>
-                BINCONFIG[doc] = "When inheriting the binconfig-disabled class, this variable specifies binary configuration scripts to disable in favor of using pkg-config to query the information."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-binconfig-disabled'><filename>binconfig-disabled</filename></link>
-                    class, this variable specifies binary configuration
-                    scripts to disable in favor of using
-                    <filename>pkg-config</filename> to query the information.
-                    The <filename>binconfig-disabled</filename> class will
-                    modify the specified scripts to return an error so that
-                    calls to them can be easily found and replaced.
-                </para>
-
-                <para>
-                    To add multiple scripts, separate them by spaces.
-                    Here is an example from the <filename>libpng</filename>
-                    recipe:
-                    <literallayout class='monospaced'>
-     BINCONFIG = "${bindir}/libpng-config ${bindir}/libpng16-config"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BINCONFIG_GLOB'><glossterm>BINCONFIG_GLOB</glossterm>
-            <info>
-                BINCONFIG_GLOB[doc] = "When inheriting binconfig.bbclass from a recipe, this variable specifies a wildcard for configuration scripts that need editing."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-binconfig'><filename>binconfig</filename></link>
-                    class, this variable specifies a wildcard for
-                    configuration scripts that need editing.
-                    The scripts are edited to correct any paths that have been
-                    set up during compilation so that they are correct for
-                    use when installed into the sysroot and called by the
-                    build processes of other recipes.
-                    <note>
-                        The <filename>BINCONFIG_GLOB</filename> variable
-                        uses
-                        <ulink url='http://tldp.org/LDP/abs/html/globbingref.html'>shell globbing</ulink>,
-                        which is recognition and expansion of wildcards during
-                        pattern matching.
-                        Shell globbing is very similar to
-                        <ulink url='https://docs.python.org/2/library/fnmatch.html#module-fnmatch'><filename>fnmatch</filename></ulink>
-                        and
-                        <ulink url='https://docs.python.org/2/library/glob.html'><filename>glob</filename></ulink>.
-                    </note>
-                </para>
-
-                <para>
-                    For more information on how this variable works, see
-                    <filename>meta/classes/binconfig.bbclass</filename> in the
-                    <link linkend='source-directory'>Source Directory</link>.
-                    You can also find general information on the class in the
-                    "<link linkend='ref-classes-binconfig'><filename>binconfig.bbclass</filename></link>"
-                    section.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BP'><glossterm>BP</glossterm>
-            <info>
-                BP[doc] = "The base recipe name and version but without any special recipe name suffix (i.e. -native, lib64-, and so forth). BP is comprised of ${BPN}-${PV}"
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The base recipe name and version but without any special
-                    recipe name suffix (i.e. <filename>-native</filename>, <filename>lib64-</filename>,
-                    and so forth).
-                    <filename>BP</filename> is comprised of the following:
-                    <literallayout class="monospaced">
-     ${BPN}-${PV}
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BPN'><glossterm>BPN</glossterm>
-            <info>
-                BPN[doc] = "This variable is a version of the PN variable but removes common suffixes and prefixes."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    This variable is a version of the
-                    <link linkend='var-PN'><filename>PN</filename></link>
-                    variable with common prefixes and suffixes
-                    removed, such as <filename>nativesdk-</filename>,
-                    <filename>-cross</filename>,
-                    <filename>-native</filename>, and multilib's
-                    <filename>lib64-</filename> and
-                    <filename>lib32-</filename>.
-                    The exact lists of prefixes and suffixes removed are
-                    specified by the
-                    <link linkend='var-MLPREFIX'><filename>MLPREFIX</filename></link>
-                    and
-                    <link linkend='var-SPECIAL_PKGSUFFIX'><filename>SPECIAL_PKGSUFFIX</filename></link>
-                    variables, respectively.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUGTRACKER'><glossterm>BUGTRACKER</glossterm>
-            <info>
-                BUGTRACKER[doc] = "Specifies a URL for an upstream bug tracking website for a recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a URL for an upstream bug tracking website for
-                    a recipe.
-                    The OpenEmbedded build system does not use this variable.
-                    Rather, the variable is a useful pointer in case a bug
-                    in the software being built needs to be manually reported.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_ARCH'><glossterm>BUILD_ARCH</glossterm>
-            <info>
-                BUILD_ARCH[doc] = "The name of the building architecture (e.g. i686)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the architecture of the build host
-                    (e.g. <filename>i686</filename>).
-                    The OpenEmbedded build system sets the value of
-                    <filename>BUILD_ARCH</filename> from the machine name
-                    reported by the <filename>uname</filename> command.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_AS_ARCH'><glossterm>BUILD_AS_ARCH</glossterm>
-            <info>
-                BUILD_AS_ARCH[doc] = "Specifies the architecture-specific assembler flags for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the architecture-specific assembler flags for
-                    the build host. By default, the value of
-                    <filename>BUILD_AS_ARCH</filename> is empty.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_CC_ARCH'><glossterm>BUILD_CC_ARCH</glossterm>
-            <info>
-                BUILD_CC_ARCH[doc] = "Specifies the architecture-specific C compiler flags for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the architecture-specific C compiler flags for
-                    the build host. By default, the value of
-                    <filename>BUILD_CC_ARCH</filename> is empty.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_CCLD'><glossterm>BUILD_CCLD</glossterm>
-            <info>
-                BUILD_CCLD[doc] = "Specifies the linker command to be used for the build host when the C compiler is being used as the linker."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the linker command to be used for the build host
-                    when the C compiler is being used as the linker. By default,
-                    <filename>BUILD_CCLD</filename> points to GCC and passes as
-                    arguments the value of
-                    <link linkend='var-BUILD_CC_ARCH'><filename>BUILD_CC_ARCH</filename></link>,
-                    assuming <filename>BUILD_CC_ARCH</filename> is set.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_CFLAGS'><glossterm>BUILD_CFLAGS</glossterm>
-            <info>
-                BUILD_CFLAGS[doc] = "Specifies the flags to pass to the C compiler when building for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the C compiler when building
-                    for the build host.
-                    When building in the <filename>-native</filename> context,
-                    <link linkend='var-CFLAGS'><filename>CFLAGS</filename></link>
-                    is set to the value of this variable by default.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_CPPFLAGS'><glossterm>BUILD_CPPFLAGS</glossterm>
-            <info>
-                BUILD_CPPFLAGS[doc] = "Specifies the flags to pass to the C preprocessor (i.e. to both the C and the C++ compilers) when building for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the C preprocessor
-                    (i.e. to both the C and the C++ compilers) when building
-                    for the build host.
-                    When building in the <filename>-native</filename> context,
-                    <link linkend='var-CPPFLAGS'><filename>CPPFLAGS</filename></link>
-                    is set to the value of this variable by default.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_CXXFLAGS'><glossterm>BUILD_CXXFLAGS</glossterm>
-            <info>
-                BUILD_CXXFLAGS[doc] = "Specifies the flags to pass to the C++ compiler when building for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the C++ compiler when
-                    building for the build host.
-                    When building in the <filename>-native</filename> context,
-                    <link linkend='var-CXXFLAGS'><filename>CXXFLAGS</filename></link>
-                    is set to the value of this variable by default.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_FC'><glossterm>BUILD_FC</glossterm>
-            <info>
-                BUILD_FC[doc] = "Specifies the Fortran compiler command for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the Fortran compiler command for the build host.
-                    By default, <filename>BUILD_FC</filename> points to
-                    Gfortran and passes as arguments the value of
-                    <link linkend='var-BUILD_CC_ARCH'><filename>BUILD_CC_ARCH</filename></link>,
-                    assuming <filename>BUILD_CC_ARCH</filename> is set.
-               </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_LD'><glossterm>BUILD_LD</glossterm>
-            <info>
-                BUILD_LD[doc] = "Specifies the linker command for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the linker command for the build host. By default,
-                    <filename>BUILD_LD</filename> points to the GNU linker (ld)
-                    and passes as arguments the value of
-                    <link linkend='var-BUILD_LD_ARCH'><filename>BUILD_LD_ARCH</filename></link>,
-                    assuming <filename>BUILD_LD_ARCH</filename> is set.
-               </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_LD_ARCH'><glossterm>BUILD_LD_ARCH</glossterm>
-            <info>
-                BUILD_LD_ARCH[doc] = "Specifies architecture-specific linker flags for the build."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies architecture-specific linker flags for the build
-                    host. By default, the value of
-                    <filename>BUILD_LD_ARCH</filename> is empty.
-               </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_LDFLAGS'><glossterm>BUILD_LDFLAGS</glossterm>
-            <info>
-                BUILD_LDFLAGS[doc] = "Specifies the flags to pass to the linker when building for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the linker when building
-                    for the build host.
-                    When building in the <filename>-native</filename> context,
-                    <link linkend='var-LDFLAGS'><filename>LDFLAGS</filename></link>
-                    is set to the value of this variable by default.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_OPTIMIZATION'><glossterm>BUILD_OPTIMIZATION</glossterm>
-            <info>
-                BUILD_OPTIMIZATION[doc] = "Specifies the optimization flags passed to the C compiler when building for the build host or the SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the optimization flags passed to the C compiler
-                    when building for the build host or the SDK.
-                    The flags are passed through the
-                    <link linkend='var-BUILD_CFLAGS'><filename>BUILD_CFLAGS</filename></link>
-                    and
-                    <link linkend='var-BUILDSDK_CFLAGS'><filename>BUILDSDK_CFLAGS</filename></link>
-                    default values.
-                </para>
-
-                <para>
-                    The default value of the
-                    <filename>BUILD_OPTIMIZATION</filename> variable is
-                    "-O2 -pipe".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_OS'><glossterm>BUILD_OS</glossterm>
-            <info>
-                BUILD_OS[doc] = "The operating system (in lower case) of the building architecture (e.g. Linux)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the operating system in use on the build
-                    host (e.g. "linux").
-                    The OpenEmbedded build system sets the value of
-                    <filename>BUILD_OS</filename> from the OS reported by
-                    the <filename>uname</filename> command - the first word,
-                    converted to lower-case characters.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_PREFIX'><glossterm>BUILD_PREFIX</glossterm>
-            <info>
-                BUILD_PREFIX[doc] = "The toolchain binary prefix used for native recipes."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The toolchain binary prefix used for native recipes.
-                    The OpenEmbedded build system uses the
-                    <filename>BUILD_PREFIX</filename> value to set the
-                    <link linkend='var-TARGET_PREFIX'><filename>TARGET_PREFIX</filename></link>
-                    when building for <filename>native</filename> recipes.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_STRIP'><glossterm>BUILD_STRIP</glossterm>
-            <info>
-                BUILD_STRIP[doc] = "Specifies the command to be used to strip debugging symbols from binaries produced for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the command to be used to strip debugging symbols
-                    from binaries produced for the build host. By default,
-                    <filename>BUILD_STRIP</filename> points to
-                    <filename>${</filename><link linkend='var-BUILD_PREFIX'><filename>BUILD_PREFIX</filename></link><filename>}strip</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_SYS'><glossterm>BUILD_SYS</glossterm>
-            <info>
-                BUILD_SYS[doc] = "The toolchain binary prefix used for native recipes."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the system, including the architecture and
-                    the operating system, to use when building for the build
-                    host (i.e. when building <filename>native</filename>
-                    recipes).
-                </para>
-
-                <para>
-                    The OpenEmbedded build system automatically sets this
-                    variable based on
-                    <link linkend='var-BUILD_ARCH'><filename>BUILD_ARCH</filename></link>,
-                    <link linkend='var-BUILD_VENDOR'><filename>BUILD_VENDOR</filename></link>,
-                    and
-                    <link linkend='var-BUILD_OS'><filename>BUILD_OS</filename></link>.
-                    You do not need to set the <filename>BUILD_SYS</filename>
-                    variable yourself.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILD_VENDOR'><glossterm>BUILD_VENDOR</glossterm>
-            <info>
-         BUILD_VENDOR[doc] = "The vendor name to use when building for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the vendor name to use when building for the
-                    build host.
-                    The default value is an empty string ("").
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILDDIR'><glossterm>BUILDDIR</glossterm>
-            <info>
-                BUILDDIR[doc] = "Points to the location of the Build Directory."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the location of the
-                    <link linkend='build-directory'>Build Directory</link>.
-                    You can define this directory indirectly through the
-                    <link linkend='structure-core-script'><filename>&OE_INIT_FILE;</filename></link>
-                    script by passing in a Build Directory path when you run
-                    the script.
-                    If you run the script and do not provide a Build Directory
-                    path, the <filename>BUILDDIR</filename> defaults to
-                    <filename>build</filename> in the current directory.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILDHISTORY_COMMIT'><glossterm>BUILDHISTORY_COMMIT</glossterm>
-            <info>
-                BUILDHISTORY_COMMIT[doc] = "When inheriting the buildhistory class, this variable specifies whether or not to commit the build history output in a local Git repository."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-buildhistory'><filename>buildhistory</filename></link>
-                    class, this variable specifies whether or not to commit the
-                    build history output in a local Git repository.
-                    If set to "1", this local repository will be maintained
-                    automatically by the
-                    <filename>buildhistory</filename>
-                    class and a commit will be created on every
-                    build for changes to each top-level subdirectory of the
-                    build history output (images, packages, and sdk).
-                    If you want to track changes to build history over
-                    time, you should set this value to "1".
-                </para>
-
-                <para>
-                    By default, the <filename>buildhistory</filename> class
-                    does not commit the build history output in a local
-                    Git repository:
-                    <literallayout class='monospaced'>
-     BUILDHISTORY_COMMIT ?= "0"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILDHISTORY_COMMIT_AUTHOR'><glossterm>BUILDHISTORY_COMMIT_AUTHOR</glossterm>
-            <info>
-                BUILDHISTORY_COMMIT_AUTHOR[doc] = "When inheriting the buildhistory class, this variable specifies the author to use for each Git commit."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-buildhistory'><filename>buildhistory</filename></link>
-                    class, this variable specifies the author to use for each
-                    Git commit.
-                    In order for the <filename>BUILDHISTORY_COMMIT_AUTHOR</filename>
-                    variable to work, the
-                    <link linkend='var-BUILDHISTORY_COMMIT'><filename>BUILDHISTORY_COMMIT</filename></link>
-                    variable must be set to "1".
-                </para>
-
-                <para>
-                    Git requires that the value you provide for the
-                    <filename>BUILDHISTORY_COMMIT_AUTHOR</filename> variable
-                    takes the form of "name <replaceable>email@host</replaceable>".
-                    Providing an email address or host that is not valid does
-                    not produce an error.
-                </para>
-
-                <para>
-                    By default, the <filename>buildhistory</filename> class
-                    sets the variable as follows:
-                    <literallayout class='monospaced'>
-     BUILDHISTORY_COMMIT_AUTHOR ?= "buildhistory &lt;buildhistory@${DISTRO}&gt;"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILDHISTORY_DIR'><glossterm>BUILDHISTORY_DIR</glossterm>
-            <info>
-                BUILDHISTORY_DIR[doc] = "When inheriting the buildhistory class, this variable specifies the directory in which build history information is kept."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-buildhistory'><filename>buildhistory</filename></link>
-                    class, this variable specifies the directory in which
-                    build history information is kept.
-                    For more information on how the variable works, see the
-                    <filename>buildhistory.class</filename>.
-                </para>
-
-                <para>
-                    By default, the <filename>buildhistory</filename> class
-                    sets the directory as follows:
-                    <literallayout class='monospaced'>
-     BUILDHISTORY_DIR ?= "${TOPDIR}/buildhistory"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILDHISTORY_FEATURES'><glossterm>BUILDHISTORY_FEATURES</glossterm>
-            <info>
-                BUILDHISTORY_FEATURES[doc] = "When inheriting the buildhistory class, this variable specifies the build history features to be enabled."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-buildhistory'><filename>buildhistory</filename></link>
-                    class, this variable specifies the build history features
-                    to be enabled.
-                    For more information on how build history works, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#maintaining-build-output-quality'>Maintaining Build Output Quality</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-
-                <para>
-                    You can specify these features in the form of a
-                    space-separated list:
-                    <itemizedlist>
-                        <listitem><para><emphasis>image:</emphasis>
-                            Analysis of the contents of images, which
-                            includes the list of installed packages among other
-                            things.
-                            </para></listitem>
-                        <listitem><para><emphasis>package:</emphasis>
-                            Analysis of the contents of individual packages.
-                            </para></listitem>
-                        <listitem><para><emphasis>sdk:</emphasis>
-                            Analysis of the contents of the software
-                            development kit (SDK).
-                            </para></listitem>
-                        <listitem><para><emphasis>task:</emphasis>
-                            Save output file signatures for
-                            <ulink url='&YOCTO_DOCS_OM_URL;#shared-state-cache'>shared state</ulink>
-                            (sstate) tasks.
-                            This saves one file per task and lists the SHA-256
-                            checksums for each file staged (i.e. the output of
-                            the task).
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    By default, the <filename>buildhistory</filename> class
-                    enables the following features:
-                    <literallayout class='monospaced'>
-     BUILDHISTORY_FEATURES ?= "image package sdk"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILDHISTORY_IMAGE_FILES'><glossterm>BUILDHISTORY_IMAGE_FILES</glossterm>
-            <info>
-                BUILDHISTORY_IMAGE_FILES[doc] = "When inheriting the buildhistory class, this variable specifies a list of paths to files copied from the image contents into the build history directory under an "image-files" directory in the directory for the image, so that you can track the contents of each file."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-buildhistory'><filename>buildhistory</filename></link>
-                    class, this variable specifies a list of paths to files
-                    copied from the
-                    image contents into the build history directory under
-                    an "image-files" directory in the directory for
-                    the image, so that you can track the contents of each file.
-                    The default is to copy <filename>/etc/passwd</filename>
-                    and <filename>/etc/group</filename>, which allows you to
-                    monitor for changes in user and group entries.
-                    You can modify the list to include any file.
-                    Specifying an invalid path does not produce an error.
-                    Consequently, you can include files that might
-                    not always be present.
-                </para>
-
-                <para>
-                    By default, the <filename>buildhistory</filename> class
-                    provides paths to the following files:
-                    <literallayout class='monospaced'>
-     BUILDHISTORY_IMAGE_FILES ?= "/etc/passwd /etc/group"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILDHISTORY_PUSH_REPO'><glossterm>BUILDHISTORY_PUSH_REPO</glossterm>
-            <info>
-                BUILDHISTORY_PUSH_REPO[doc] = "When inheriting the buildhistory class, this variable optionally specifies a remote repository to which build history pushes Git changes."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-buildhistory'><filename>buildhistory</filename></link>
-                    class, this variable optionally specifies a remote
-                    repository to which build history pushes Git changes.
-                    In order for <filename>BUILDHISTORY_PUSH_REPO</filename>
-                    to work,
-                    <link linkend='var-BUILDHISTORY_COMMIT'><filename>BUILDHISTORY_COMMIT</filename></link>
-                    must be set to "1".
-                </para>
-
-                <para>
-                    The repository should correspond to a remote
-                    address that specifies a repository as understood by
-                    Git, or alternatively to a remote name that you have
-                    set up manually using <filename>git remote</filename>
-                    within the local repository.
-                </para>
-
-                <para>
-                    By default, the <filename>buildhistory</filename> class
-                    sets the variable as follows:
-                    <literallayout class='monospaced'>
-     BUILDHISTORY_PUSH_REPO ?= ""
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILDSDK_CFLAGS'><glossterm>BUILDSDK_CFLAGS</glossterm>
-            <info>
-                BUILDSDK_CFLAGS[doc] = "Specifies the flags to pass to the C compiler when building for the SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the C compiler when building
-                    for the SDK.
-                    When building in the <filename>nativesdk-</filename>
-                    context,
-                    <link linkend='var-CFLAGS'><filename>CFLAGS</filename></link>
-                    is set to the value of this variable by default.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILDSDK_CPPFLAGS'><glossterm>BUILDSDK_CPPFLAGS</glossterm>
-            <info>
-                BUILDSDK_CPPFLAGS[doc] = "Specifies the flags to pass to the C pre-processor (i.e. to both the C and the C++ compilers) when building for the SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the C pre-processor
-                    (i.e. to both the C and the C++ compilers) when building
-                    for the SDK.
-                    When building in the <filename>nativesdk-</filename>
-                    context,
-                    <link linkend='var-CPPFLAGS'><filename>CPPFLAGS</filename></link>
-                    is set to the value of this variable by default.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILDSDK_CXXFLAGS'><glossterm>BUILDSDK_CXXFLAGS</glossterm>
-            <info>
-                BUILDSDK_CXXFLAGS[doc] = "Specifies the flags to pass to the C++ compiler when building for the SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the C++ compiler when
-                    building for the SDK.
-                    When building in the <filename>nativesdk-</filename>
-                    context,
-                    <link linkend='var-CXXFLAGS'><filename>CXXFLAGS</filename></link>
-                    is set to the value of this variable by default.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILDSDK_LDFLAGS'><glossterm>BUILDSDK_LDFLAGS</glossterm>
-            <info>
-                BUILDSDK_LDFLAGS[doc] = "Specifies the flags to pass to the linker when building for the SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the linker when building
-                    for the SDK.
-                    When building in the <filename>nativesdk-</filename>
-                    context,
-                    <link linkend='var-LDFLAGS'><filename>LDFLAGS</filename></link>
-                    is set to the value of this variable by default.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUILDSTATS_BASE'><glossterm>BUILDSTATS_BASE</glossterm>
-            <info>
-                BUILDSTATS_BASE[doc] = "Points to the location of the directory that holds build statistics when you use and enable the buildstats class."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the location of the directory that holds build
-                    statistics when you use and enable the
-                    <link linkend='ref-classes-buildstats'><filename>buildstats</filename></link>
-                    class.
-                    The <filename>BUILDSTATS_BASE</filename> directory defaults
-                    to
-                    <filename>${</filename><link linkend='var-TMPDIR'><filename>TMPDIR</filename></link><filename>}/buildstats/</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-BUSYBOX_SPLIT_SUID'><glossterm>BUSYBOX_SPLIT_SUID</glossterm>
-            <info>
-                BUSYBOX_SPLIT_SUID[doc] = "For the BusyBox recipe, specifies whether to split the output executable file into two parts: one for features that require setuid root, and one for the remaining features."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    For the BusyBox recipe, specifies whether to split the
-                    output executable file into two parts: one for features
-                    that require <filename>setuid root</filename>, and one for
-                    the remaining features (i.e. those that do not require
-                    <filename>setuid root</filename>).
-                </para>
-
-                <para>
-                    The <filename>BUSYBOX_SPLIT_SUID</filename> variable
-                    defaults to "1", which results in splitting the output
-                    executable file.
-                    Set the variable to "0" to get a single output executable
-                    file.
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-c'><title>C</title>
-
-        <glossentry id='var-CACHE'><glossterm>CACHE</glossterm>
-            <info>
-                CACHE[doc]  = "The directory BitBake uses to store a cache of the metadata."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the directory BitBake uses to store a cache
-                    of the
-                    <link linkend='metadata'>Metadata</link>
-                    so it does not need to be parsed every time BitBake is
-                    started.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CC'><glossterm>CC</glossterm>
-            <info>
-                CC[doc] = "Minimum command and arguments to run the C compiler."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The minimal command and arguments used to run the C
-                    compiler.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CFLAGS'><glossterm>CFLAGS</glossterm>
-            <info>
-                CFLAGS[doc] = "Flags passed to the C compiler for the target system. This variable evaluates to the same as TARGET_CFLAGS."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the C compiler.
-                    This variable is exported to an environment
-                    variable and thus made visible to the software being
-                    built during the compilation step.
-                </para>
-
-                <para>
-                    Default initialization for <filename>CFLAGS</filename>
-                    varies depending on what is being built:
-                    <itemizedlist>
-                        <listitem><para>
-                            <link linkend='var-TARGET_CFLAGS'><filename>TARGET_CFLAGS</filename></link>
-                            when building for the target
-                            </para></listitem>
-                        <listitem><para>
-                            <link linkend='var-BUILD_CFLAGS'><filename>BUILD_CFLAGS</filename></link>
-                            when building for the build host (i.e.
-                            <filename>-native</filename>)
-                            </para></listitem>
-                        <listitem><para>
-                            <link linkend='var-BUILDSDK_CFLAGS'><filename>BUILDSDK_CFLAGS</filename></link>
-                            when building for an SDK (i.e.
-                            <filename>nativesdk-</filename>)
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CLASSOVERRIDE'><glossterm>CLASSOVERRIDE</glossterm>
-            <info>
-                CLASSOVERRIDE[doc] = "An internal variable specifying the special class override that should currently apply (e.g. "class-target", "class-native", and so forth)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    An internal variable specifying the special class override
-                    that should currently apply (e.g. "class-target",
-                    "class-native", and so forth).
-                    The classes that use this variable (e.g.
-                    <link linkend='ref-classes-native'><filename>native</filename></link>,
-                    <link linkend='ref-classes-nativesdk'><filename>nativesdk</filename></link>,
-                    and so forth) set the variable to appropriate values.
-                    <note>
-                        <filename>CLASSOVERRIDE</filename> gets its default
-                        "class-target" value from the
-                        <filename>bitbake.conf</filename> file.
-                    </note>
-                </para>
-
-                <para>
-                    As an example, the following override allows you to install
-                    extra files, but only when building for the target:
-                    <literallayout class='monospaced'>
-     do_install_append_class-target() {
-         install my-extra-file ${D}${sysconfdir}
-     }
-                    </literallayout>
-                    Here is an example where <filename>FOO</filename>
-                    is set to "native" when building for the build host, and
-                    to "other" when not building for the build host:
-                    <literallayout class='monospaced'>
-     FOO_class-native = "native"
-     FOO = "other"
-                    </literallayout>
-                    The underlying mechanism behind
-                    <filename>CLASSOVERRIDE</filename> is simply that it is
-                    included in the default value of
-                    <link linkend='var-OVERRIDES'><filename>OVERRIDES</filename></link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CLEANBROKEN'><glossterm>CLEANBROKEN</glossterm>
-            <info>
-                CLEANBROKEN[doc] = "Prevents the build system from running 'make clean' during the do_configure task."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    If set to "1" within a recipe,
-                    <filename>CLEANBROKEN</filename> specifies that
-                    the <filename>make clean</filename> command does
-                    not work for the software being built.
-                    Consequently, the OpenEmbedded build system will not try
-                    to run <filename>make clean</filename> during the
-                    <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>
-                    task, which is the default behavior.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COMBINED_FEATURES'><glossterm>COMBINED_FEATURES</glossterm>
-            <info>
-                COMBINED_FEATURES[doc] = "A set of features common between MACHINE_FEATURES and DISTRO_FEATURES."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Provides a list of hardware features that are enabled in
-                    both
-                    <link linkend='var-MACHINE_FEATURES'><filename>MACHINE_FEATURES</filename></link>
-                    and
-                    <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>.
-                    This select list of features contains features that make
-                    sense to be controlled both at the machine and distribution
-                    configuration level.
-                    For example, the "bluetooth" feature requires hardware
-                    support but should also be optional at the distribution
-                    level, in case the hardware supports Bluetooth but you
-                    do not ever intend to use it.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COMMON_LICENSE_DIR'><glossterm>COMMON_LICENSE_DIR</glossterm>
-            <info>
-                COMMON_LICENSE_DIR[doc] = "Points to meta/files/common-licenses in the Source Directory, which is where generic license files reside."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to <filename>meta/files/common-licenses</filename>
-                    in the
-                    <link linkend='source-directory'>Source Directory</link>,
-                    which is where generic license files reside.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COMPATIBLE_HOST'><glossterm>COMPATIBLE_HOST</glossterm>
-            <info>
-                COMPATIBLE_HOST[doc] = "A regular expression that resolves to one or more hosts (when the recipe is native) or one or more targets (when the recipe is non-native) with which a recipe is compatible."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A regular expression that resolves to one or more hosts
-                    (when the recipe is native) or one or more targets (when
-                    the recipe is non-native) with which a recipe is compatible.
-                    The regular expression is matched against
-                    <link linkend="var-HOST_SYS"><filename>HOST_SYS</filename></link>.
-                    You can use the variable to stop recipes from being built
-                    for classes of systems with which the recipes are not
-                    compatible.
-                    Stopping these builds is particularly useful with kernels.
-                    The variable also helps to increase parsing speed
-                    since the build system skips parsing recipes not
-                    compatible with the current system.
-               </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COMPATIBLE_MACHINE'><glossterm>COMPATIBLE_MACHINE</glossterm>
-            <info>
-                COMPATIBLE_MACHINE[doc] = "A regular expression that resolves to one or more target machines with which a recipe is compatible."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A regular expression that resolves to one or more
-                    target machines with which a recipe is compatible.
-                    The regular expression is matched against
-                    <link linkend="var-MACHINEOVERRIDES"><filename>MACHINEOVERRIDES</filename></link>.
-                    You can use the variable to stop recipes from being built
-                    for machines with which the recipes are not compatible.
-                    Stopping these builds is particularly useful with kernels.
-                    The variable also helps to increase parsing speed
-                    since the build system skips parsing recipes not
-                    compatible with the current machine.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COMPLEMENTARY_GLOB'><glossterm>COMPLEMENTARY_GLOB</glossterm>
-            <info>
-                COMPLEMENTARY_GLOB[doc] = "Defines wildcards to match when installing a list of complementary packages for all the packages installed in an image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines wildcards to match when installing a list of
-                    complementary packages for all the packages explicitly
-                    (or implicitly) installed in an image.
-                    <note>
-                        The <filename>COMPLEMENTARY_GLOB</filename> variable
-                        uses Unix filename pattern matching
-                        (<ulink url='https://docs.python.org/2/library/fnmatch.html#module-fnmatch'><filename>fnmatch</filename></ulink>),
-                        which is similar to the Unix style pathname pattern
-                        expansion
-                        (<ulink url='https://docs.python.org/2/library/glob.html'><filename>glob</filename></ulink>).
-                    </note>
-                    The resulting list of complementary packages is associated
-                    with an item that can be added to
-                    <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>.
-                    An example usage of this is the "dev-pkgs" item that when
-                    added to <filename>IMAGE_FEATURES</filename> will
-                    install -dev packages (containing headers and other
-                    development files) for every package in the image.
-                </para>
-
-                <para>
-                    To add a new feature item pointing to a wildcard, use a
-                    variable flag to specify the feature item name and
-                    use the value to specify the wildcard.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     COMPLEMENTARY_GLOB[dev-pkgs] = '*-dev'
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COMPONENTS_DIR'><glossterm>COMPONENTS_DIR</glossterm>
-            <info>
-                COMPONENTS_DIR[doc] = "Stores sysroot components for each recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Stores sysroot components for each recipe.
-                    The OpenEmbedded build system uses
-                    <filename>COMPONENTS_DIR</filename> when constructing
-                    recipe-specific sysroots for other recipes.
-                </para>
-
-                <para>
-                    The default is
-                    "<filename>${</filename><link linkend='var-STAGING_DIR'><filename>STAGING_DIR</filename></link><filename>}-components</filename>."
-                    (i.e. "<filename>${</filename><link linkend='var-TMPDIR'><filename>TMPDIR</filename></link><filename>}/sysroots-components</filename>").
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CONF_VERSION'><glossterm>CONF_VERSION</glossterm>
-            <info>
-                CONF_VERSION[doc] = "Tracks the version of local.conf.  Increased each time build/conf/ changes incompatibly."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Tracks the version of the local configuration file
-                    (i.e. <filename>local.conf</filename>).
-                    The value for <filename>CONF_VERSION</filename>
-                    increments each time <filename>build/conf/</filename>
-                    compatibility changes.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CONFFILES'><glossterm>CONFFILES</glossterm>
-            <info>
-                CONFFILES[doc] = "Identifies editable or configurable files that are part of a package."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Identifies editable or configurable files that are part of a package.
-                    If the Package Management System (PMS) is being used to update
-                    packages on the target system, it is possible that
-                    configuration files you have changed after the original installation
-                    and that you now want to remain unchanged are overwritten.
-                    In other words, editable files might exist in the package that you do not
-                    want reset as part of the package update process.
-                    You can use the <filename>CONFFILES</filename> variable to list the files in the
-                    package that you wish to prevent the PMS from overwriting during this update process.
-                </para>
-
-                <para>
-                    To use the <filename>CONFFILES</filename> variable, provide a package name
-                    override that identifies the resulting package.
-                    Then, provide a space-separated list of files.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     CONFFILES_${PN} += "${sysconfdir}/file1 \
-        ${sysconfdir}/file2 ${sysconfdir}/file3"
-                    </literallayout>
-                </para>
-
-                <para>
-                    A relationship exists between the <filename>CONFFILES</filename> and
-                    <filename><link linkend='var-FILES'>FILES</link></filename> variables.
-                    The files listed within <filename>CONFFILES</filename> must be a subset of
-                    the files listed within <filename>FILES</filename>.
-                    Because the configuration files you provide with <filename>CONFFILES</filename>
-                    are simply being identified so that the PMS will not overwrite them,
-                    it makes sense that
-                    the files must already be included as part of the package through the
-                    <filename>FILES</filename> variable.
-                </para>
-
-                <note>
-                    When specifying paths as part of the <filename>CONFFILES</filename> variable,
-                    it is good practice to use appropriate path variables.
-                    For example, <filename>${sysconfdir}</filename> rather than
-                    <filename>/etc</filename> or <filename>${bindir}</filename> rather
-                    than <filename>/usr/bin</filename>.
-                    You can find a list of these variables at the top of the
-                    <filename>meta/conf/bitbake.conf</filename> file in the
-                    <link linkend='source-directory'>Source Directory</link>.
-                </note>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CONFIG_INITRAMFS_SOURCE'><glossterm>CONFIG_INITRAMFS_SOURCE</glossterm>
-            <info>
-                CONFIG_INITRAMFS_SOURCE[doc] = "Identifies the initial RAM filesystem (initramfs) source files. The OpenEmbedded build system receives and uses this kernel Kconfig variable as an environment variable."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Identifies the initial RAM filesystem (initramfs) source
-                    files.
-                    The OpenEmbedded build system receives and uses
-                    this kernel Kconfig variable as an environment variable.
-                    By default, the variable is set to null ("").
-                </para>
-
-                <para>
-                    The <filename>CONFIG_INITRAMFS_SOURCE</filename> can be
-                    either a single cpio archive with a
-                    <filename>.cpio</filename> suffix or a
-                    space-separated list of directories and files for building
-                    the initramfs image.
-                    A cpio archive should contain a filesystem archive
-                    to be used as an initramfs image.
-                    Directories should contain a filesystem layout to be
-                    included in the initramfs image.
-                    Files should contain entries according to the format
-                    described by the
-                    <filename>usr/gen_init_cpio</filename> program in the
-                    kernel tree.
-                </para>
-
-                <para>
-                    If you specify multiple directories and files, the
-                    initramfs image will be the aggregate of all of them.
-                </para>
-
-                <para>
-                    For information on creating an initramfs, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#building-an-initramfs-image'>Building an Initial RAM Filesystem (initramfs) Image</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CONFIG_SITE'><glossterm>CONFIG_SITE</glossterm>
-            <info>
-                CONFIG_SITE[doc] = "A list of files that contains autoconf test results relevant to the current build. This variable is used by the Autotools utilities when running configure."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of files that contains <filename>autoconf</filename> test results relevant
-                    to the current build.
-                    This variable is used by the Autotools utilities when running
-                    <filename>configure</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CONFIGURE_FLAGS'><glossterm>CONFIGURE_FLAGS</glossterm>
-            <info>
-                CONFIGURE_FLAGS[doc] = "The minimal arguments for GNU configure."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The minimal arguments for GNU configure.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CONFLICT_DISTRO_FEATURES'><glossterm>CONFLICT_DISTRO_FEATURES</glossterm>
-            <info>
-                CONFLICT_DISTRO_FEATURES[doc] = "When a recipe inherits the distro_features_check class, this variable identifies distribution features that would be in conflict should the recipe be built."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-distro_features_check'><filename>distro_features_check</filename></link>
-                    class, this
-                    variable identifies distribution features that would
-                    be in conflict should the recipe
-                    be built.
-                    In other words, if the
-                    <filename>CONFLICT_DISTRO_FEATURES</filename> variable
-                    lists a feature that also appears in
-                    <filename>DISTRO_FEATURES</filename> within the
-                    current configuration, an error occurs and the
-                    build stops.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COPYLEFT_LICENSE_EXCLUDE'><glossterm>COPYLEFT_LICENSE_EXCLUDE</glossterm>
-            <info>
-                COPYLEFT_LICENSE_EXCLUDE[doc] = "Licenses to exclude in the source archived by the archiver class."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A space-separated list of licenses to exclude from the
-                    source archived by the
-                    <link linkend='ref-classes-archiver'><filename>archiver</filename></link>
-                    class.
-                    In other words, if a license in a recipe's
-                    <link linkend='var-LICENSE'><filename>LICENSE</filename></link>
-                    value is in the value of
-                    <filename>COPYLEFT_LICENSE_EXCLUDE</filename>, then its
-                    source is not archived by the class.
-                    <note>
-                        The <filename>COPYLEFT_LICENSE_EXCLUDE</filename>
-                        variable takes precedence over the
-                        <link linkend='var-COPYLEFT_LICENSE_INCLUDE'><filename>COPYLEFT_LICENSE_INCLUDE</filename></link>
-                        variable.
-                    </note>
-                    The default value, which is "CLOSED Proprietary", for
-                    <filename>COPYLEFT_LICENSE_EXCLUDE</filename> is set
-                    by the
-                    <link linkend='ref-classes-copyleft_filter'><filename>copyleft_filter</filename></link>
-                    class, which is inherited by the
-                    <filename>archiver</filename> class.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COPYLEFT_LICENSE_INCLUDE'><glossterm>COPYLEFT_LICENSE_INCLUDE</glossterm>
-            <info>
-                COPYLEFT_LICENSE_INCLUDE[doc] = "Licenses to include in the source archived by the archiver class."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A space-separated list of licenses to include in the
-                    source archived by the
-                    <link linkend='ref-classes-archiver'><filename>archiver</filename></link>
-                    class.
-                    In other words, if a license in a recipe's
-                    <link linkend='var-LICENSE'><filename>LICENSE</filename></link>
-                    value is in the value of
-                    <filename>COPYLEFT_LICENSE_INCLUDE</filename>, then its
-                    source is archived by the class.
-                </para>
-
-                <para>
-                    The default value is set by the
-                    <link linkend='ref-classes-copyleft_filter'><filename>copyleft_filter</filename></link>
-                    class, which is inherited by the
-                    <filename>archiver</filename> class.
-                    The default value includes "GPL*", "LGPL*", and "AGPL*".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COPYLEFT_PN_EXCLUDE'><glossterm>COPYLEFT_PN_EXCLUDE</glossterm>
-            <info>
-                COPYLEFT_PN_EXCLUDE[doc] = "Recipes to exclude in the source archived by the archiver class."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of recipes to exclude in the source archived
-                    by the
-                    <link linkend='ref-classes-archiver'><filename>archiver</filename></link>
-                    class.
-                    The <filename>COPYLEFT_PN_EXCLUDE</filename> variable
-                    overrides the license inclusion and exclusion caused
-                    through the
-                    <link linkend='var-COPYLEFT_LICENSE_INCLUDE'><filename>COPYLEFT_LICENSE_INCLUDE</filename></link>
-                    and
-                    <link linkend='var-COPYLEFT_LICENSE_EXCLUDE'><filename>COPYLEFT_LICENSE_EXCLUDE</filename></link>
-                    variables, respectively.
-                </para>
-
-                <para>
-                    The default value, which is "" indicating to not explicitly
-                    exclude any recipes by name, for
-                    <filename>COPYLEFT_PN_EXCLUDE</filename> is set
-                    by the
-                    <link linkend='ref-classes-copyleft_filter'><filename>copyleft_filter</filename></link>
-                    class, which is inherited by the
-                    <filename>archiver</filename> class.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COPYLEFT_PN_INCLUDE'><glossterm>COPYLEFT_PN_INCLUDE</glossterm>
-            <info>
-                COPYLEFT_PN_INCLUDE[doc] = "Recipes to include in the source archived by the archiver class."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of recipes to include in the source archived
-                    by the
-                    <link linkend='ref-classes-archiver'><filename>archiver</filename></link>
-                    class.
-                    The <filename>COPYLEFT_PN_INCLUDE</filename> variable
-                    overrides the license inclusion and exclusion caused
-                    through the
-                    <link linkend='var-COPYLEFT_LICENSE_INCLUDE'><filename>COPYLEFT_LICENSE_INCLUDE</filename></link>
-                    and
-                    <link linkend='var-COPYLEFT_LICENSE_EXCLUDE'><filename>COPYLEFT_LICENSE_EXCLUDE</filename></link>
-                    variables, respectively.
-                </para>
-
-                <para>
-                    The default value, which is "" indicating to not explicitly
-                    include any recipes by name, for
-                    <filename>COPYLEFT_PN_INCLUDE</filename> is set
-                    by the
-                    <link linkend='ref-classes-copyleft_filter'><filename>copyleft_filter</filename></link>
-                    class, which is inherited by the
-                    <filename>archiver</filename> class.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COPYLEFT_RECIPE_TYPES'><glossterm>COPYLEFT_RECIPE_TYPES</glossterm>
-            <info>
-                COPYLEFT_RECIPE_TYPES[doc] = "Recipe types to include in the source archived by the archiver class."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A space-separated list of recipe types to include
-                    in the source archived by the
-                    <link linkend='ref-classes-archiver'><filename>archiver</filename></link>
-                    class.
-                    Recipe types are <filename>target</filename>,
-                    <filename>native</filename>,
-                    <filename>nativesdk</filename>,
-                    <filename>cross</filename>,
-                    <filename>crosssdk</filename>, and
-                    <filename>cross-canadian</filename>.
-                </para>
-
-                <para>
-                    The default value, which is "target*", for
-                    <filename>COPYLEFT_RECIPE_TYPES</filename> is set
-                    by the
-                    <link linkend='ref-classes-copyleft_filter'><filename>copyleft_filter</filename></link>
-                    class, which is inherited by the
-                    <filename>archiver</filename> class.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COPY_LIC_DIRS'><glossterm>COPY_LIC_DIRS</glossterm>
-            <info>
-                COPY_LIC_DIRS[doc] = "If set to "1" along with the COPY_LIC_MANIFEST variable, the OpenEmbedded build system copies into the image the license files, which are located in /usr/share/common-licenses, for each package."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    If set to "1" along with the
-                    <link linkend='var-COPY_LIC_MANIFEST'><filename>COPY_LIC_MANIFEST</filename></link>
-                    variable, the OpenEmbedded build system copies
-                    into the image the license files, which are located in
-                    <filename>/usr/share/common-licenses</filename>,
-                    for each package.
-                    The license files are placed
-                    in directories within the image itself during build time.
-                    <note>
-                        The <filename>COPY_LIC_DIRS</filename> does not
-                        offer a path for adding licenses for newly installed
-                        packages to an image, which might be most suitable
-                        for read-only filesystems that cannot be upgraded.
-                        See the
-                        <link linkend='var-LICENSE_CREATE_PACKAGE'><filename>LICENSE_CREATE_PACKAGE</filename></link>
-                        variable for additional information.
-                        You can also reference the
-                        "<ulink url='&YOCTO_DOCS_DEV_URL;#providing-license-text'>Providing License Text</ulink>"
-                        section in the Yocto Project Development Tasks Manual
-                        for information on providing license text.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COPY_LIC_MANIFEST'><glossterm>COPY_LIC_MANIFEST</glossterm>
-            <info>
-                COPY_LIC_MANIFEST[doc] = "If set to "1", the OpenEmbedded build system copies the license manifest for the image to /usr/share/common-licenses/license.manifest within the image itself."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    If set to "1", the OpenEmbedded build system copies
-                    the license manifest for the image to
-                    <filename>/usr/share/common-licenses/license.manifest</filename>
-                    within the image itself during build time.
-                    <note>
-                        The <filename>COPY_LIC_MANIFEST</filename> does not
-                        offer a path for adding licenses for newly installed
-                        packages to an image, which might be most suitable
-                        for read-only filesystems that cannot be upgraded.
-                        See the
-                        <link linkend='var-LICENSE_CREATE_PACKAGE'><filename>LICENSE_CREATE_PACKAGE</filename></link>
-                        variable for additional information.
-                        You can also reference the
-                        "<ulink url='&YOCTO_DOCS_DEV_URL;#providing-license-text'>Providing License Text</ulink>"
-                        section in the Yocto Project Development Tasks Manual
-                        for information on providing license text.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CORE_IMAGE_EXTRA_INSTALL'><glossterm>CORE_IMAGE_EXTRA_INSTALL</glossterm>
-            <info>
-                CORE_IMAGE_EXTRA_INSTALL[doc] = "Specifies the list of packages to be added to the image. You should only set this variable in the conf/local.conf file in the Build Directory."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the list of packages to be added to the image.
-                    You should only set this variable in the
-                    <filename>local.conf</filename> configuration file found
-                    in the
-                    <link linkend='build-directory'>Build Directory</link>.
-                </para>
-
-                <para>
-                    This variable replaces <filename>POKY_EXTRA_INSTALL</filename>, which is no longer supported.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COREBASE'><glossterm>COREBASE</glossterm>
-            <info>
-                COREBASE[doc] = "Specifies the parent directory of the OpenEmbedded-Core Metadata layer (i.e. meta)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the parent directory of the OpenEmbedded-Core
-                    Metadata layer (i.e. <filename>meta</filename>).
-                </para>
-
-                <para>
-                    It is an important distinction that
-                    <filename>COREBASE</filename> points to the parent of this
-                    layer and not the layer itself.
-                    Consider an example where you have cloned the Poky Git
-                    repository and retained the <filename>poky</filename>
-                    name for your local copy of the repository.
-                    In this case, <filename>COREBASE</filename> points to
-                    the <filename>poky</filename> folder because it is the
-                    parent directory of the <filename>poky/meta</filename>
-                    layer.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-COREBASE_FILES'><glossterm>COREBASE_FILES</glossterm>
-            <info>
-                COREBASE_FILES[doc] = "Lists files from the COREBASE directory that should be copied other than the layers listed in the bblayers.conf file."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists files from the
-                    <link linkend='var-COREBASE'><filename>COREBASE</filename></link>
-                    directory that should be copied other than the layers
-                    listed in the <filename>bblayers.conf</filename> file.
-                    The <filename>COREBASE_FILES</filename> variable exists
-                    for the purpose of copying metadata from the
-                    OpenEmbedded build system into the extensible
-                    SDK.
-                </para>
-
-                <para>
-                    Explicitly listing files in <filename>COREBASE</filename>
-                    is needed because it typically contains build
-                    directories and other files that should not normally
-                    be copied into the extensible SDK.
-                    Consequently, the value of
-                    <filename>COREBASE_FILES</filename> is used in order to
-                    only copy the files that are actually needed.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CPP'><glossterm>CPP</glossterm>
-            <info>
-                CPP[doc] = "Minimum command and arguments to run the C preprocessor."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The minimal command and arguments used to run the C
-                    preprocessor.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CPPFLAGS'><glossterm>CPPFLAGS</glossterm>
-            <info>
-                CPPFLAGS[doc] = "Specifies the flags to pass to the C pre-processor (i.e. to both the C and the C++ compilers)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the C pre-processor
-                    (i.e. to both the C and the C++ compilers).
-                    This variable is exported to an environment
-                    variable and thus made visible to the software being
-                    built during the compilation step.
-                </para>
-
-                <para>
-                    Default initialization for <filename>CPPFLAGS</filename>
-                    varies depending on what is being built:
-                    <itemizedlist>
-                        <listitem><para>
-                            <link linkend='var-TARGET_CPPFLAGS'><filename>TARGET_CPPFLAGS</filename></link>
-                            when building for the target
-                            </para></listitem>
-                        <listitem><para>
-                            <link linkend='var-BUILD_CPPFLAGS'><filename>BUILD_CPPFLAGS</filename></link>
-                            when building for the build host (i.e.
-                            <filename>-native</filename>)
-                            </para></listitem>
-                        <listitem><para>
-                            <link linkend='var-BUILDSDK_CPPFLAGS'><filename>BUILDSDK_CPPFLAGS</filename></link>
-                            when building for an SDK (i.e.
-                            <filename>nativesdk-</filename>)
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CROSS_COMPILE'><glossterm>CROSS_COMPILE</glossterm>
-            <info>
-                CROSS_COMPILE[doc] = "The toolchain binary prefix for the target tools."
-            </info>
-            <glossdef>
-               <para role="glossdeffirst">
-                    The toolchain binary prefix for the target tools.
-                    The <filename>CROSS_COMPILE</filename> variable is the
-                    same as the
-                    <link linkend='var-TARGET_PREFIX'><filename>TARGET_PREFIX</filename></link>
-                    variable.
-                    <note>
-                        The OpenEmbedded build system sets the
-                        <filename>CROSS_COMPILE</filename> variable only in
-                        certain contexts (e.g. when building for kernel
-                        and kernel module recipes).
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CVSDIR'><glossterm>CVSDIR</glossterm>
-            <info>
-                CVSDIR[doc] = "The directory where cvs checkouts will be stored in."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The directory in which files checked out under the
-                    CVS system are stored.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CXX'><glossterm>CXX</glossterm>
-            <info>
-                CXX[doc] = "Minimum command and arguments to run the C++ compiler."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The minimal command and arguments used to run the C++
-                    compiler.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-CXXFLAGS'><glossterm>CXXFLAGS</glossterm>
-            <info>
-                CXXFLAGS[doc] = "Specifies the flags to pass to the C++ compiler."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the C++ compiler.
-                    This variable is exported to an environment
-                    variable and thus made visible to the software being
-                    built during the compilation step.
-                </para>
-
-                <para>
-                    Default initialization for <filename>CXXFLAGS</filename>
-                    varies depending on what is being built:
-                    <itemizedlist>
-                        <listitem><para>
-                            <link linkend='var-TARGET_CXXFLAGS'><filename>TARGET_CXXFLAGS</filename></link>
-                            when building for the target
-                            </para></listitem>
-                        <listitem><para>
-                            <link linkend='var-BUILD_CXXFLAGS'><filename>BUILD_CXXFLAGS</filename></link>
-                            when building for the build host (i.e.
-                            <filename>-native</filename>)
-                            </para></listitem>
-                        <listitem><para>
-                            <link linkend='var-BUILDSDK_CXXFLAGS'><filename>BUILDSDK_CXXFLAGS</filename></link>
-                            when building for an SDK (i.e.
-                            <filename>nativesdk-</filename>)
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-d'><title>D</title>
-
-        <glossentry id='var-D'><glossterm>D</glossterm>
-            <info>
-                D[doc] = "The destination directory."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The destination directory.
-                    The location in the
-                    <link linkend='build-directory'>Build Directory</link>
-                    where components are installed by the
-                    <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-                    task.
-                    This location defaults to:
-                    <literallayout class='monospaced'>
-     ${WORKDIR}/image
-                    </literallayout>
-                    <note><title>Caution</title>
-                        Tasks that read from or write to this directory should
-                        run under
-                        <ulink url='&YOCTO_DOCS_OM_URL;#fakeroot-and-pseudo'>fakeroot</ulink>.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DATE'><glossterm>DATE</glossterm>
-            <info>
-                DATE[doc] = "The date the build was started using YMD format."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The date the build was started.
-                    Dates appear using the year, month, and day (YMD) format
-                    (e.g. "20150209" for February 9th, 2015).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DATETIME'><glossterm>DATETIME</glossterm>
-            <info>
-                DATETIME[doc] = "The date and time the build was started."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The date and time on which the current build started.
-                    The format is suitable for timestamps.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DEBIAN_NOAUTONAME'><glossterm>DEBIAN_NOAUTONAME</glossterm>
-            <info>
-                DEBIAN_NOAUTONAME[doc] = "Prevents a particular package from being renamed according to Debian package naming."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When the
-                    <link linkend='ref-classes-debian'><filename>debian</filename></link>
-                    class is inherited, which is the default behavior,
-                    <filename>DEBIAN_NOAUTONAME</filename> specifies a
-                    particular package should not be renamed according to
-                    Debian library package naming.
-                    You must use the package name as an override when you
-                    set this variable.
-                    Here is an example from the <filename>fontconfig</filename>
-                    recipe:
-                    <literallayout class='monospaced'>
-     DEBIAN_NOAUTONAME_fontconfig-utils = "1"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DEBIANNAME'><glossterm>DEBIANNAME</glossterm>
-            <info>
-                DEBIANNAME[doc] = "Allows you to override the library name for an individual package for Debian library package renaming."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When the
-                    <link linkend='ref-classes-debian'><filename>debian</filename></link>
-                    class is inherited, which is the default behavior,
-                    <filename>DEBIANNAME</filename> allows you to override the
-                    library name for an individual package.
-                    Overriding the library name in these cases is rare.
-                    You must use the package name as an override when you
-                    set this variable.
-                    Here is an example from the <filename>dbus</filename>
-                    recipe:
-                    <literallayout class='monospaced'>
-     DEBIANNAME_${PN} = "dbus-1"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DEBUG_BUILD'><glossterm>DEBUG_BUILD</glossterm>
-            <info>
-                DEBUG_BUILD[doc] = "Specifies to build packages with debugging information. This influences the value of the SELECTED_OPTIMIZATION variable."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies to build packages with debugging information.
-                    This influences the value of the
-                    <filename><link linkend='var-SELECTED_OPTIMIZATION'>SELECTED_OPTIMIZATION</link></filename>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DEBUG_OPTIMIZATION'><glossterm>DEBUG_OPTIMIZATION</glossterm>
-            <info>
-                DEBUG_OPTIMIZATION[doc] = "The options to pass in TARGET_CFLAGS and CFLAGS when compiling a system for debugging. This variable defaults to '-O -fno-omit-frame-pointer -g'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The options to pass in
-                    <filename><link linkend='var-TARGET_CFLAGS'>TARGET_CFLAGS</link></filename>
-                    and <filename><link linkend='var-CFLAGS'>CFLAGS</link></filename> when compiling
-                    a system for debugging.
-                    This variable defaults to "-O -fno-omit-frame-pointer ${DEBUG_FLAGS} -pipe".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DEFAULT_PREFERENCE'><glossterm>DEFAULT_PREFERENCE</glossterm>
-            <info>
-                DEFAULT_PREFERENCE[doc] = "Specifies a weak bias for recipe selection priority."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a weak bias for recipe selection priority.
-                </para>
-
-                <para>
-                    The most common usage of this is variable is to set
-                    it to "-1" within a recipe for a development version of a
-                    piece of software.
-                    Using the variable in this way causes the stable version
-                    of the recipe to build by default in the absence of
-                    <filename><link linkend='var-PREFERRED_VERSION'>PREFERRED_VERSION</link></filename>
-                    being used to build the development version.
-                </para>
-
-                <note>
-                    The bias provided by <filename>DEFAULT_PREFERENCE</filename>
-                    is weak and is overridden by
-                    <filename><link linkend='var-BBFILE_PRIORITY'>BBFILE_PRIORITY</link></filename>
-                    if that variable is different between two layers
-                    that contain different versions of the same recipe.
-                </note>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DEFAULTTUNE'><glossterm>DEFAULTTUNE</glossterm>
-            <info>
-                DEFAULTTUNE[doc] = "The default CPU and Application Binary Interface (ABI) tunings (i.e.  the "tune") used by the OpenEmbedded build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The default CPU and Application Binary Interface (ABI)
-                    tunings (i.e.  the "tune") used by the OpenEmbedded build
-                    system.
-                    The <filename>DEFAULTTUNE</filename> helps define
-                    <link linkend='var-TUNE_FEATURES'><filename>TUNE_FEATURES</filename></link>.
-                </para>
-
-                <para>
-                    The default tune is either implicitly or explicitly set
-                    by the machine
-                    (<link linkend='var-MACHINE'><filename>MACHINE</filename></link>).
-                    However, you can override the setting using available tunes
-                    as defined with
-                    <link linkend='var-AVAILTUNES'><filename>AVAILTUNES</filename></link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DEPENDS'><glossterm>DEPENDS</glossterm>
-            <info>
-                DEPENDS[doc] = "Lists a recipe's build-time dependencies (i.e. other recipe files)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists a recipe's build-time dependencies.
-                    These are dependencies on other recipes whose
-                    contents (e.g. headers and shared libraries) are needed
-                    by the recipe at build time.
-                </para>
-
-                <para>
-                    As an example, consider a recipe <filename>foo</filename>
-                    that contains the following assignment:
-                    <literallayout class='monospaced'>
-     DEPENDS = "bar"
-                    </literallayout>
-                    The practical effect of the previous assignment is that
-                    all files installed by bar will be available in the
-                    appropriate staging sysroot, given by the
-                    <link linkend='var-STAGING_DIR'><filename>STAGING_DIR*</filename></link>
-                    variables, by the time the
-                    <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>
-                    task for <filename>foo</filename> runs.
-                    This mechanism is implemented by having
-                    <filename>do_configure</filename> depend on the
-                    <link linkend='ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></link>
-                    task of each recipe listed in <filename>DEPENDS</filename>,
-                    through a
-                    <filename>[</filename><ulink url='&YOCTO_DOCS_BB_URL;#variable-flags'><filename>deptask</filename></ulink><filename>]</filename>
-                    declaration in the
-                    <link linkend='ref-classes-base'><filename>base</filename></link>
-                    class.
-                    <note>
-                        It seldom is necessary to reference, for example,
-                        <filename>STAGING_DIR_HOST</filename> explicitly.
-                        The standard classes and build-related variables are
-                        configured to automatically use the appropriate staging
-                        sysroots.
-                    </note>
-                    As another example, <filename>DEPENDS</filename> can also
-                    be used to add utilities that run on the build machine
-                    during the build.
-                    For example, a recipe that makes use of a code generator
-                    built by the recipe <filename>codegen</filename> might have
-                    the following:
-                    <literallayout class='monospaced'>
-     DEPENDS = "codegen-native"
-                    </literallayout>
-                    For more information, see the
-                    <link linkend='ref-classes-native'><filename>native</filename></link>
-                    class and the
-                    <link linkend='var-EXTRANATIVEPATH'><filename>EXTRANATIVEPATH</filename></link>
-                    variable.
-                    <note>
-                        <title>Notes</title>
-                        <itemizedlist>
-                            <listitem><para>
-                                <filename>DEPENDS</filename> is a list of
-                                recipe names.
-                                Or, to be more precise, it is a list of
-                                <link linkend='var-PROVIDES'><filename>PROVIDES</filename></link>
-                                names, which usually match recipe names.
-                                Putting a package name such as "foo-dev" in
-                                <filename>DEPENDS</filename> does not make
-                                sense.
-                                Use "foo" instead, as this will put files
-                                from all the packages that make up
-                                <filename>foo</filename>, which includes
-                                those from <filename>foo-dev</filename>, into
-                                the sysroot.
-                                </para></listitem>
-                            <listitem><para>
-                                One recipe having another recipe in
-                                <filename>DEPENDS</filename> does not by itself
-                                add any runtime dependencies between the
-                                packages produced by the two recipes.
-                                However, as explained in the
-                                "<ulink url='&YOCTO_DOCS_OM_URL;#automatically-added-runtime-dependencies'>Automatically Added Runtime Dependencies</ulink>"
-                                section in the Yocto Project Overview and
-                                Concepts Manual, runtime dependencies will
-                                often be added automatically, meaning
-                                <filename>DEPENDS</filename> alone is
-                                sufficient for most recipes.
-                                </para></listitem>
-                            <listitem><para>
-                                Counterintuitively,
-                                <filename>DEPENDS</filename> is often necessary
-                                even for recipes that install precompiled
-                                components.
-                                For example, if <filename>libfoo</filename>
-                                is a precompiled library that links against
-                                <filename>libbar</filename>, then
-                                linking against <filename>libfoo</filename>
-                                requires both <filename>libfoo</filename>
-                                and <filename>libbar</filename> to be available
-                                in the sysroot.
-                                Without a <filename>DEPENDS</filename> from the
-                                recipe that installs <filename>libfoo</filename>
-                                to the recipe that installs
-                                <filename>libbar</filename>, other recipes might
-                                fail to link against
-                                <filename>libfoo</filename>.
-                                </para></listitem>
-                        </itemizedlist>
-                    </note>
-                </para>
-
-                <para>
-                    For information on runtime dependencies, see the
-                    <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>
-                    variable.
-                    You can also see the
-                    "<ulink url='&YOCTO_DOCS_BB_URL;#tasks'>Tasks</ulink>" and
-                    "<ulink url='&YOCTO_DOCS_BB_URL;#dependencies'>Dependencies</ulink>"
-                    sections in the BitBake User Manual for additional
-                    information on tasks and dependencies.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DEPLOY_DIR'><glossterm>DEPLOY_DIR</glossterm>
-            <info>
-                DEPLOY_DIR[doc] = "Points to the general area that the OpenEmbedded build system uses to place images, packages, SDKs, and other output files that are ready to be used outside of the build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the general area that the OpenEmbedded build
-                    system uses to place images, packages, SDKs, and other output
-                    files that are ready to be used outside of the build system.
-                    By default, this directory resides within the
-                    <link linkend='build-directory'>Build Directory</link>
-                    as <filename>${TMPDIR}/deploy</filename>.
-                </para>
-
-                <para>
-                    For more information on the structure of the Build
-                    Directory, see
-                    "<link linkend='structure-build'>The Build Directory - <filename>build/</filename></link>"
-                    section.
-                    For more detail on the contents of the
-                    <filename>deploy</filename> directory, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#images-dev-environment'>Images</ulink>",
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#package-feeds-dev-environment'>Package Feeds</ulink>",
-                    and
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#sdk-dev-environment'>Application Development SDK</ulink>"
-                    sections all in the Yocto Project Overview and Concepts
-                    Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DEPLOY_DIR_DEB'><glossterm>DEPLOY_DIR_DEB</glossterm>
-            <info>
-                DEPLOY_DIR_DEB[doc] = "Points to a Debian-specific area that the OpenEmbedded build system uses to place images, packages, SDKs, and other output files that are ready to be used outside of the build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the area that the OpenEmbedded build system uses
-                    to place Debian packages that are ready to be used outside
-                    of the build system.
-                    This variable applies only when
-                    <link linkend='var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></link>
-                    contains "package_deb".
-                </para>
-
-                <para>
-                    The BitBake configuration file initially defines the
-                    <filename>DEPLOY_DIR_DEB</filename> variable as a
-                    sub-folder of
-                    <link linkend='var-DEPLOY_DIR'><filename>DEPLOY_DIR</filename></link>:
-                    <literallayout class='monospaced'>
-     DEPLOY_DIR_DEB = "${DEPLOY_DIR}/deb"
-                    </literallayout>
-                </para>
-
-                <para>
-                    The
-                    <link linkend='ref-classes-package_deb'><filename>package_deb</filename></link>
-                    class uses the
-                    <filename>DEPLOY_DIR_DEB</filename> variable to make sure
-                    the
-                    <link linkend='ref-tasks-package_write_deb'><filename>do_package_write_deb</filename></link>
-                    task writes Debian packages into the appropriate folder.
-                    For more information on how packaging works, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#package-feeds-dev-environment'>Package Feeds</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DEPLOY_DIR_IMAGE'><glossterm>DEPLOY_DIR_IMAGE</glossterm>
-            <info>
-                DEPLOY_DIR_IMAGE[doc] = "Points to the area that the OpenEmbedded build system uses to place images and other associated output files that are ready to be deployed onto the target machine."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the area that the OpenEmbedded build system uses
-                    to place images and other associated output files that are
-                    ready to be deployed onto the target machine.
-                    The directory is machine-specific as it contains the
-                    <filename>${MACHINE}</filename> name.
-                    By default, this directory resides within the
-                    <link linkend='build-directory'>Build Directory</link>
-                    as <filename>${DEPLOY_DIR}/images/${MACHINE}/</filename>.
-                </para>
-
-                <para>
-                    For more information on the structure of the Build
-                    Directory, see
-                    "<link linkend='structure-build'>The Build Directory - <filename>build/</filename></link>"
-                    section.
-                    For more detail on the contents of the
-                    <filename>deploy</filename> directory, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#images-dev-environment'>Images</ulink>"
-                    and
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#sdk-dev-environment'>Application Development SDK</ulink>"
-                    sections both in the Yocto Project Overview and Concepts
-                    Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DEPLOY_DIR_IPK'><glossterm>DEPLOY_DIR_IPK</glossterm>
-            <info>
-                DEPLOY_DIR_IPK[doc] = "Points to a IPK-specific area that the OpenEmbedded build system uses to place images, packages, SDKs, and other output files that are ready to be used outside of the build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the area that the OpenEmbedded build system uses
-                    to place IPK packages that are ready to be used outside of
-                    the build system.
-                    This variable applies only when
-                    <link linkend='var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></link>
-                    contains "package_ipk".
-                </para>
-
-                <para>
-                    The BitBake configuration file initially defines this
-                    variable as a sub-folder of
-                    <link linkend='var-DEPLOY_DIR'><filename>DEPLOY_DIR</filename></link>:
-                    <literallayout class='monospaced'>
-     DEPLOY_DIR_IPK = "${DEPLOY_DIR}/ipk"
-                    </literallayout>
-                </para>
-
-                <para>
-                    The
-                    <link linkend='ref-classes-package_ipk'><filename>package_ipk</filename></link>
-                    class uses the
-                    <filename>DEPLOY_DIR_IPK</filename> variable to make sure
-                    the
-                    <link linkend='ref-tasks-package_write_ipk'><filename>do_package_write_ipk</filename></link>
-                    task writes IPK packages into the appropriate folder.
-                    For more information on how packaging works, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#package-feeds-dev-environment'>Package Feeds</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DEPLOY_DIR_RPM'><glossterm>DEPLOY_DIR_RPM</glossterm>
-            <info>
-                DEPLOY_DIR_RPM[doc] = "Points to a RPM-specific area that the OpenEmbedded build system uses to place images, packages, SDKs, and other output files that are ready to be used outside of the build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the area that the OpenEmbedded build system uses
-                    to place RPM packages that are ready to be used outside
-                    of the build system.
-                    This variable applies only when
-                    <link linkend='var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></link>
-                    contains "package_rpm".
-                </para>
-
-                <para>
-                    The BitBake configuration file initially defines this
-                    variable as a sub-folder of
-                    <link linkend='var-DEPLOY_DIR'><filename>DEPLOY_DIR</filename></link>:
-                    <literallayout class='monospaced'>
-     DEPLOY_DIR_RPM = "${DEPLOY_DIR}/rpm"
-                    </literallayout>
-                </para>
-
-                <para>
-                    The
-                    <link linkend='ref-classes-package_rpm'><filename>package_rpm</filename></link>
-                    class uses the
-                    <filename>DEPLOY_DIR_RPM</filename> variable to make sure
-                    the
-                    <link linkend='ref-tasks-package_write_rpm'><filename>do_package_write_rpm</filename></link>
-                    task writes RPM packages into the appropriate folder.
-                    For more information on how packaging works, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#package-feeds-dev-environment'>Package Feeds</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DEPLOY_DIR_TAR'><glossterm>DEPLOY_DIR_TAR</glossterm>
-            <info>
-                DEPLOY_DIR_TAR[doc] = "Points to a tarball area that the OpenEmbedded build system uses to place images, packages, SDKs, and other output files that are ready to be used outside of the build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the area that the OpenEmbedded build system uses
-                    to place tarballs that are ready to be used outside of
-                    the build system.
-                    This variable applies only when
-                    <link linkend='var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></link>
-                    contains "package_tar".
-                </para>
-
-                <para>
-                    The BitBake configuration file initially defines this
-                    variable as a sub-folder of
-                    <link linkend='var-DEPLOY_DIR'><filename>DEPLOY_DIR</filename></link>:
-                    <literallayout class='monospaced'>
-     DEPLOY_DIR_TAR = "${DEPLOY_DIR}/tar"
-                    </literallayout>
-                </para>
-
-                <para>
-                    The
-                    <link linkend='ref-classes-package_tar'><filename>package_tar</filename></link>
-                    class uses the
-                    <filename>DEPLOY_DIR_TAR</filename> variable to make sure
-                    the
-                    <link linkend='ref-tasks-package_write_tar'><filename>do_package_write_tar</filename></link>
-                    task writes TAR packages into the appropriate folder.
-                    For more information on how packaging works, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#package-feeds-dev-environment'>Package Feeds</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DEPLOYDIR'><glossterm>DEPLOYDIR</glossterm>
-            <info>
-                DEPLOYDIR[doc] = "For recipes that inherit the deploy class, the DEPLOYDIR points to a temporary work area for deployed files."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-deploy'><filename>deploy</filename></link>
-                    class, the <filename>DEPLOYDIR</filename> points to a
-                    temporary work area for deployed files that is set in the
-                    <filename>deploy</filename> class as follows:
-                    <literallayout class='monospaced'>
-     DEPLOYDIR = "${WORKDIR}/deploy-${<link linkend='var-PN'><filename>PN</filename></link>}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    Recipes inheriting the <filename>deploy</filename> class
-                    should copy files to be deployed into
-                    <filename>DEPLOYDIR</filename>, and the class will take
-                    care of copying them into
-                    <link linkend='var-DEPLOY_DIR_IMAGE'><filename>DEPLOY_DIR_IMAGE</filename></link>
-                    afterwards.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DESCRIPTION'><glossterm>DESCRIPTION</glossterm>
-            <info>
-                DESCRIPTION[doc] = "The package description used by package managers. If not set, DESCRIPTION takes the value of the SUMMARY variable."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The package description used by package managers.
-                    If not set, <filename>DESCRIPTION</filename> takes
-                    the value of the
-                    <link linkend='var-SUMMARY'><filename>SUMMARY</filename></link>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DISTRO'><glossterm>DISTRO</glossterm>
-            <info>
-                DISTRO[doc] = "The short name of the distribution. If the variable is blank, meta/conf/distro/defaultsetup.conf will be used."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The short name of the distribution.
-                    For information on the long name of the distribution, see
-                    the
-                    <link linkend='var-DISTRO_NAME'><filename>DISTRO_NAME</filename></link>
-                    variable.
-                </para>
-
-                <para>
-                    The <filename>DISTRO</filename> variable corresponds to a
-                    distribution configuration file whose root name is the
-                    same as the variable's argument and whose filename
-                    extension is <filename>.conf</filename>.
-                    For example, the distribution configuration file for the
-                    Poky distribution is named <filename>poky.conf</filename>
-                    and resides in the
-                    <filename>meta-poky/conf/distro</filename> directory of
-                    the
-                    <link linkend='source-directory'>Source Directory</link>.
-                </para>
-
-                <para>
-                    Within that <filename>poky.conf</filename> file, the
-                    <filename>DISTRO</filename> variable is set as follows:
-                    <literallayout class='monospaced'>
-     DISTRO = "poky"
-                    </literallayout>
-                </para>
-
-                <para>
-                    Distribution configuration files are located in a
-                    <filename>conf/distro</filename> directory within the
-                    <link linkend='metadata'>Metadata</link>
-                    that contains the distribution configuration.
-                    The value for <filename>DISTRO</filename> must not contain
-                    spaces, and is typically all lower-case.
-                    <note>
-                        If the <filename>DISTRO</filename> variable is blank,
-                        a set of default configurations are used, which are
-                        specified within
-                        <filename>meta/conf/distro/defaultsetup.conf</filename>
-                        also in the Source Directory.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DISTRO_CODENAME'><glossterm>DISTRO_CODENAME</glossterm>
-            <info>
-                DISTRO_CODENAME[doc] = "Specifies a codename for the distribution being built."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a codename for the distribution being built.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DISTRO_EXTRA_RDEPENDS'><glossterm>DISTRO_EXTRA_RDEPENDS</glossterm>
-            <info>
-                DISTRO_EXTRA_RDEPENDS[doc] = "Specifies a list of distro-specific packages to add to all images. The variable only applies to the images that include packagegroup-base."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of distro-specific packages to add to all images.
-                    This variable takes affect through
-                    <filename>packagegroup-base</filename> so the
-                    variable only really applies to the more full-featured
-                    images that include <filename>packagegroup-base</filename>.
-                    You can use this variable to keep distro policy out of
-                    generic images.
-                    As with all other distro variables, you set this variable
-                    in the distro <filename>.conf</filename> file.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DISTRO_EXTRA_RRECOMMENDS'><glossterm>DISTRO_EXTRA_RRECOMMENDS</glossterm>
-            <info>
-                DISTRO_EXTRA_RRECOMMENDS[doc] = "Specifies a list of distro-specific packages to add to all images if the packages exist. The list of packages are automatically installed but you can remove them."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of distro-specific packages to add to all images
-                    if the packages exist.
-                    The packages might not exist or be empty (e.g. kernel modules).
-                    The list of packages are automatically installed but you can
-                    remove them.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DISTRO_FEATURES'><glossterm>DISTRO_FEATURES</glossterm>
-            <info>
-                DISTRO_FEATURES[doc] = "The features enabled for the distribution."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The software support you want in your distribution for
-                    various features.
-                    You define your distribution features in the distribution
-                    configuration file.
-                </para>
-
-                <para>
-                    In most cases, the presence or absence of a feature in
-                    <filename>DISTRO_FEATURES</filename> is translated to the
-                    appropriate option supplied to the configure script
-                    during the
-                    <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>
-                    task for recipes that optionally support the feature.
-                    For example, specifying "x11" in
-                    <filename>DISTRO_FEATURES</filename>, causes
-                    every piece of software built for the target that can
-                    optionally support X11 to have its X11 support enabled.
-                </para>
-
-                <para>
-                    Two more examples are Bluetooth and NFS support.
-                    For a more complete list of features that ships with the
-                    Yocto Project and that you can provide with this variable,
-                    see the
-                    "<link linkend='ref-features-distro'>Distro Features</link>"
-                    section.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DISTRO_FEATURES_BACKFILL'><glossterm>DISTRO_FEATURES_BACKFILL</glossterm>
-            <info>
-                DISTRO_FEATURES_BACKFILL[doc] = "Features to be added to DISTRO_FEATURES if not also present in DISTRO_FEATURES_BACKFILL_CONSIDERED. This variable is set in the meta/conf/bitbake.conf file and it is not intended to be user-configurable."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Features to be added to
-                    <filename><link linkend='var-DISTRO_FEATURES'>DISTRO_FEATURES</link></filename>
-                    if not also present in
-                    <filename><link linkend='var-DISTRO_FEATURES_BACKFILL_CONSIDERED'>DISTRO_FEATURES_BACKFILL_CONSIDERED</link></filename>.
-                </para>
-
-                <para>
-                    This variable is set in the <filename>meta/conf/bitbake.conf</filename> file.
-                    It is not intended to be user-configurable.
-                    It is best to just reference the variable to see which distro features are
-                    being backfilled for all distro configurations.
-                    See the "<link linkend='ref-features-backfill'>Feature Backfilling</link>" section for
-                    more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DISTRO_FEATURES_BACKFILL_CONSIDERED'><glossterm>DISTRO_FEATURES_BACKFILL_CONSIDERED</glossterm>
-            <info>
-                DISTRO_FEATURES_BACKFILL_CONSIDERED[doc] = "Features from DISTRO_FEATURES_BACKFILL that should not be backfilled (i.e. added to DISTRO_FEATURES) during the build."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Features from
-                    <filename><link linkend='var-DISTRO_FEATURES_BACKFILL'>DISTRO_FEATURES_BACKFILL</link></filename>
-                    that should not be backfilled (i.e. added to
-                    <filename><link linkend='var-DISTRO_FEATURES'>DISTRO_FEATURES</link></filename>)
-                    during the build.
-                    See the "<link linkend='ref-features-backfill'>Feature Backfilling</link>" section for
-                    more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DISTRO_FEATURES_DEFAULT'><glossterm>DISTRO_FEATURES_DEFAULT</glossterm>
-            <info>
-                DISTRO_FEATURES_DEFAULT[doc] = "Provides the default list of distro features with the exception of any libc-specific features."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A convenience variable that gives you the default
-                    list of distro features with the exception of any
-                    features specific to the C library
-                    (<filename>libc</filename>).
-                </para>
-
-                <para>
-                    When creating a custom distribution, you might find it
-                    useful to be able to reuse the default
-                    <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>
-                    options without the need to write out the full set.
-                    Here is an example that uses
-                    <filename>DISTRO_FEATURES_DEFAULT</filename> from a
-                    custom distro configuration file:
-                    <literallayout class='monospaced'>
-     DISTRO_FEATURES ?= "${DISTRO_FEATURES_DEFAULT} myfeature"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DISTRO_FEATURES_FILTER_NATIVE'><glossterm>DISTRO_FEATURES_FILTER_NATIVE</glossterm>
-            <info>
-                DISTRO_FEATURES_FILTER_NATIVE[doc] = "Specifies a list of features that if present in the target DISTRO_FEATURES value should be included in DISTRO_FEATURES when building native recipes."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of features that if present in
-                    the target
-                    <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>
-                    value should be included in
-                    <filename>DISTRO_FEATURES</filename> when building native
-                    recipes.
-                    This variable is used in addition to the features
-                    filtered using the
-                    <link linkend='var-DISTRO_FEATURES_NATIVE'><filename>DISTRO_FEATURES_NATIVE</filename></link>
-                    variable.
-               </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DISTRO_FEATURES_FILTER_NATIVESDK'><glossterm>DISTRO_FEATURES_FILTER_NATIVESDK</glossterm>
-            <info>
-                DISTRO_FEATURES_FILTER_NATIVESDK[doc] = "Specifies a list of features that if present in the target DISTRO_FEATURES value should be included in DISTRO_FEATURES when building nativesdk recipes."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of features that if present in the target
-                    <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>
-                    value should be included in
-                    <filename>DISTRO_FEATURES</filename> when building
-                    nativesdk recipes.
-                    This variable is used in addition to the features
-                    filtered using the
-                    <link linkend='var-DISTRO_FEATURES_NATIVESDK'><filename>DISTRO_FEATURES_NATIVESDK</filename></link>
-                    variable.
-               </para>
-            </glossdef>
-        </glossentry>
-
-<!--
-        <glossentry id='var-DISTRO_FEATURES_LIBC'><glossterm>DISTRO_FEATURES_LIBC</glossterm>
-            <info>
-                DISTRO_FEATURES_LIBC[doc] = "Specifies the list of distro features that are specific to the C library (libc)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A convenience variable that specifies the list of distro
-                    features that are specific to the C library
-                    (<filename>libc</filename>).
-                    Typically, these features are prefixed with "libc-" and
-                    control which features are enabled at during the build
-                    within the C library itself.
-                </para>
-            </glossdef>
-        </glossentry>
--->
-
-        <glossentry id='var-DISTRO_FEATURES_NATIVE'><glossterm>DISTRO_FEATURES_NATIVE</glossterm>
-            <info>
-                DISTRO_FEATURES_NATIVE[doc] = "Specifies a list of features that should be included in DISTRO_FEATURES when building native recipes."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of features that should be included in
-                    <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>
-                    when building native recipes.
-                    This variable is used in addition to the features
-                    filtered using the
-                    <link linkend='var-DISTRO_FEATURES_FILTER_NATIVE'><filename>DISTRO_FEATURES_FILTER_NATIVE</filename></link>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DISTRO_FEATURES_NATIVESDK'><glossterm>DISTRO_FEATURES_NATIVESDK</glossterm>
-            <info>
-                DISTRO_FEATURES_NATIVESDK[doc] = "Specifies a list of features that should be included in DISTRO_FEATURES when building nativesdk recipes."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of features that should be included in
-                    <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>
-                    when building nativesdk recipes.
-                    This variable is used in addition to the features
-                    filtered using the
-                    <link linkend='var-DISTRO_FEATURES_FILTER_NATIVESDK'><filename>DISTRO_FEATURES_FILTER_NATIVESDK</filename></link>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DISTRO_NAME'><glossterm>DISTRO_NAME</glossterm>
-            <info>
-                DISTRO_NAME[doc] = "The long name of the distribution."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The long name of the distribution.
-                    For information on the short name of the distribution, see
-                    the
-                    <link linkend='var-DISTRO'><filename>DISTRO</filename></link>
-                    variable.
-                </para>
-
-                <para>
-                    The <filename>DISTRO_NAME</filename> variable corresponds
-                    to a distribution configuration file whose root name is the
-                    same as the variable's argument and whose filename
-                    extension is <filename>.conf</filename>.
-                    For example, the distribution configuration file for the
-                    Poky distribution is named <filename>poky.conf</filename>
-                    and resides in the
-                    <filename>meta-poky/conf/distro</filename> directory of
-                    the
-                    <link linkend='source-directory'>Source Directory</link>.
-                </para>
-
-                <para>
-                    Within that <filename>poky.conf</filename> file, the
-                    <filename>DISTRO_NAME</filename> variable is set as
-                    follows:
-                    <literallayout class='monospaced'>
-     DISTRO_NAME = "Poky (Yocto Project Reference Distro)"
-                    </literallayout>
-                </para>
-
-                <para>
-                    Distribution configuration files are located in a
-                    <filename>conf/distro</filename> directory within the
-                    <link linkend='metadata'>Metadata</link>
-                    that contains the distribution configuration.
-                    <note>
-                        If the <filename>DISTRO_NAME</filename> variable is
-                        blank, a set of default configurations are used, which
-                        are specified within
-                        <filename>meta/conf/distro/defaultsetup.conf</filename>
-                        also in the Source Directory.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DISTRO_VERSION'><glossterm>DISTRO_VERSION</glossterm>
-            <info>
-                DISTRO_VERSION[doc] = "The version of the distribution."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The version of the distribution.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DISTROOVERRIDES'><glossterm>DISTROOVERRIDES</glossterm>
-            <info>
-                DISTROOVERRIDES[doc] = "A colon-separated list of overrides specific to the current distribution."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A colon-separated list of overrides specific to the
-                    current distribution.
-                    By default, this list includes the value of
-                    <link linkend='var-DISTRO'><filename>DISTRO</filename></link>.
-                </para>
-
-                <para>
-                    You can extend <filename>DISTROOVERRIDES</filename>
-                    to add extra overrides that should apply to
-                    the distribution.
-                </para>
-
-                <para>
-                    The underlying mechanism behind
-                    <filename>DISTROOVERRIDES</filename> is simply that it
-                    is included in the default value of
-                    <link linkend='var-OVERRIDES'><filename>OVERRIDES</filename></link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DL_DIR'><glossterm>DL_DIR</glossterm>
-            <info>
-                DL_DIR[doc] = "The central download directory used by the build process to store downloads. By default, the directory is 'downloads' in the Build Directory."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The central download directory used by the build process to
-                    store downloads.
-                    By default, <filename>DL_DIR</filename> gets files
-                    suitable for mirroring for everything except Git
-                    repositories.
-                    If you want tarballs of Git repositories, use the
-                    <link linkend='var-BB_GENERATE_MIRROR_TARBALLS'><filename>BB_GENERATE_MIRROR_TARBALLS</filename></link>
-                    variable.
-                </para>
-
-                <para>
-                    You can set this directory by defining the
-                    <filename>DL_DIR</filename> variable in the
-                    <filename>conf/local.conf</filename> file.
-                    This directory is self-maintaining and you should not have
-                    to touch it.
-                    By default, the directory is <filename>downloads</filename>
-                    in the
-                    <link linkend='build-directory'>Build Directory</link>.
-                    <literallayout class='monospaced'>
-     #DL_DIR ?= "${TOPDIR}/downloads"
-                    </literallayout>
-                    To specify a different download directory, simply remove
-                    the comment from the line and provide your directory.
-                </para>
-
-                <para>
-                    During a first build, the system downloads many different
-                    source code tarballs from various upstream projects.
-                    Downloading can take a while, particularly if your network
-                    connection is slow.
-                    Tarballs are all stored in the directory defined by
-                    <filename>DL_DIR</filename> and the build system looks there
-                    first to find source tarballs.
-                    <note>
-                        When wiping and rebuilding, you can preserve this
-                        directory to speed up this part of subsequent
-                        builds.
-                    </note>
-                </para>
-
-                <para>
-                    You can safely share this directory between multiple builds
-                    on the same development machine.
-                    For additional information on how the build process gets
-                    source files when working behind a firewall or proxy server,
-                    see this specific question in the
-                    "<link linkend='how-does-the-yocto-project-obtain-source-code-and-will-it-work-behind-my-firewall-or-proxy-server'>FAQ</link>"
-                    chapter.
-                    You can also refer to the
-                    "<ulink url='&YOCTO_WIKI_URL;/wiki/Working_Behind_a_Network_Proxy'>Working Behind a Network Proxy</ulink>"
-                    Wiki page.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-DOC_COMPRESS'><glossterm>DOC_COMPRESS</glossterm>
-            <info>
-                DOC_COMPRESS[doc] = "When inheriting the compress_doc class, this variable sets the compression policy used when the OpenEmbedded build system compresses man pages and info pages."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-compress_doc'><filename>compress_doc</filename></link>
-                    class, this variable sets the compression policy used when
-                    the OpenEmbedded build system compresses man pages and info
-                    pages.
-                    By default, the compression method used is gz (gzip).
-                    Other policies available are xz and bz2.
-                </para>
-
-                <para>
-                    For information on policies and on how to use this
-                    variable, see the comments in the
-                    <filename>meta/classes/compress_doc.bbclass</filename> file.
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-e'><title>E</title>
-
-        <glossentry id='var-EFI_PROVIDER'><glossterm>EFI_PROVIDER</glossterm>
-            <info>
-                EFI_PROVIDER[doc] = "When building bootable images (i.e. where hddimg, iso, or wic.vmdk is in IMAGE_FSTYPES), the EFI_PROVIDER variable specifies the EFI bootloader to use."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When building bootable images (i.e. where
-                    <filename>hddimg</filename>, <filename>iso</filename>,
-                    or <filename>wic.vmdk</filename> is in
-                    <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>),
-                    the <filename>EFI_PROVIDER</filename> variable specifies
-                    the EFI bootloader to use.
-                    The default is "grub-efi", but "systemd-boot" can be used
-                    instead.
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='ref-classes-systemd-boot'><filename>systemd-boot</filename></link>
-                    and
-                    <link linkend='ref-classes-image-live'><filename>image-live</filename></link>
-                    classes for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ENABLE_BINARY_LOCALE_GENERATION'><glossterm>ENABLE_BINARY_LOCALE_GENERATION</glossterm>
-            <info>
-                ENABLE_BINARY_LOCALE_GENERATION[doc] = "Controls which locales for glibc are generated during the build. The variable is useful if the target device has 64Mbytes of RAM or less."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Variable that controls which locales for
-                    <filename>glibc</filename> are generated during the
-                    build (useful if the target device has 64Mbytes
-                    of RAM or less).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ERR_REPORT_DIR'><glossterm>ERR_REPORT_DIR</glossterm>
-            <info>
-                ERR_REPORT_DIR[doc] = "When used with the report-error class, specifies the path used for storing the debug files created by the error reporting tool, which allows you to submit build errors you encounter to a central database."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When used with the
-                    <link linkend='ref-classes-report-error'><filename>report-error</filename></link>
-                    class, specifies the path used for storing the debug files
-                    created by the
-                    <ulink url='&YOCTO_DOCS_DEV_URL;#using-the-error-reporting-tool'>error reporting tool</ulink>,
-                    which allows you to submit build errors you encounter to a
-                    central database.
-                    By default, the value of this variable is
-                    <filename>${</filename><link linkend='var-LOG_DIR'><filename>LOG_DIR</filename></link><filename>}/error-report</filename>.
-                </para>
-
-                <para>
-                    You can set <filename>ERR_REPORT_DIR</filename> to the path
-                    you want the error reporting tool to store the debug files
-                    as follows in your <filename>local.conf</filename> file:
-                    <literallayout class='monospaced'>
-     ERR_REPORT_DIR = "<replaceable>path</replaceable>"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ERROR_QA'><glossterm>ERROR_QA</glossterm>
-            <info>
-                ERROR_QA[doc] = "Specifies the quality assurance checks whose failures are reported as errors by the OpenEmbedded build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the quality assurance checks whose failures are
-                    reported as errors by the OpenEmbedded build system.
-                    You set this variable in your distribution configuration
-                    file.
-                    For a list of the checks you can control with this variable,
-                    see the
-                    "<link linkend='ref-classes-insane'><filename>insane.bbclass</filename></link>"
-                    section.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXCLUDE_FROM_SHLIBS'><glossterm>EXCLUDE_FROM_SHLIBS</glossterm>
-            <info>
-                EXCLUDE_FROM_SHLIBS[doc] = "Causes the OpenEmbedded build system's shared libraries resolver to exclude an entire package when scanning for shared libraries."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Triggers the OpenEmbedded build system's shared libraries
-                    resolver to exclude an entire package when scanning for
-                    shared libraries.
-                    <note>
-                        The shared libraries resolver's functionality results
-                        in part from the internal function
-                        <filename>package_do_shlibs</filename>, which is part of
-                        the
-                        <link linkend='ref-tasks-package'><filename>do_package</filename></link>
-                        task.
-                        You should be aware that the shared libraries resolver
-                        might implicitly define some dependencies between
-                        packages.
-                    </note>
-                    The <filename>EXCLUDE_FROM_SHLIBS</filename> variable is
-                    similar to the
-                    <link linkend='var-PRIVATE_LIBS'><filename>PRIVATE_LIBS</filename></link>
-                    variable, which excludes a package's particular libraries
-                    only and not the whole package.
-                </para>
-
-                <para>
-                    Use the
-                    <filename>EXCLUDE_FROM_SHLIBS</filename> variable by
-                    setting it to "1" for a particular package:
-                    <literallayout class='monospaced'>
-     EXCLUDE_FROM_SHLIBS = "1"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXCLUDE_FROM_WORLD'><glossterm>EXCLUDE_FROM_WORLD</glossterm>
-            <info>
-                EXCLUDE_FROM_WORLD[doc] = "Directs BitBake to exclude a recipe from world builds (i.e. bitbake world)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Directs BitBake to exclude a recipe from world builds (i.e.
-                    <filename>bitbake world</filename>).
-                    During world builds, BitBake locates, parses and builds all
-                    recipes found in every layer exposed in the
-                    <filename>bblayers.conf</filename> configuration file.
-                </para>
-
-                <para>
-                    To exclude a recipe from a world build using this variable,
-                    set the variable to "1" in the recipe.
-                </para>
-
-                <note>
-                    Recipes added to <filename>EXCLUDE_FROM_WORLD</filename>
-                    may still be built during a world build in order to satisfy
-                    dependencies of other recipes.
-                    Adding a recipe to <filename>EXCLUDE_FROM_WORLD</filename>
-                    only ensures that the recipe is not explicitly added
-                    to the list of build targets in a world build.
-                </note>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTENDPE'><glossterm>EXTENDPE</glossterm>
-            <info>
-                EXTENDPE[doc] = "Used with file and pathnames to create a prefix for a recipe's version based on the recipe's PE value. If PE is set and greater than zero for a recipe, EXTENDPE becomes that value."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Used with file and pathnames to create a prefix for a recipe's
-                    version based on the recipe's
-                    <link linkend='var-PE'><filename>PE</filename></link> value.
-                    If <filename>PE</filename> is set and greater than zero for a recipe,
-                    <filename>EXTENDPE</filename> becomes that value (e.g if
-                    <filename>PE</filename> is equal to "1" then <filename>EXTENDPE</filename>
-                    becomes "1_").
-                    If a recipe's <filename>PE</filename> is not set (the default) or is equal to
-                    zero, <filename>EXTENDPE</filename> becomes "".</para>
-                    <para>See the <link linkend='var-STAMP'><filename>STAMP</filename></link>
-                    variable for an example.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTENDPKGV'><glossterm>EXTENDPKGV</glossterm>
-            <info>
-                EXTENDPKGV[doc] = "The full package version specification as it appears on the final packages produced by a recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The full package version specification as it appears on the
-                    final packages produced by a recipe.
-                    The variable's value is normally used to fix a runtime
-                    dependency to the exact same version of another package
-                    in the same recipe:
-                    <literallayout class='monospaced'>
-     RDEPENDS_${PN}-additional-module = "${PN} (= ${EXTENDPKGV})"
-                    </literallayout>
-                </para>
-
-                <para>
-                    The dependency relationships are intended to force the
-                    package manager to upgrade these types of packages in
-                    lock-step.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTERNAL_KERNEL_TOOLS'><glossterm>EXTERNAL_KERNEL_TOOLS</glossterm>
-            <info>
-                EXTERNAL_KERNEL_TOOLS[doc] = "Indicates kernel tools are external to the source tree."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When set, the <filename>EXTERNAL_KERNEL_TOOLS</filename>
-                    variable indicates that these tools are not in the
-                    source tree.
-                </para>
-
-                <para>
-                    When kernel tools are available in the tree, they are
-                    preferred over any externally installed tools.
-                    Setting the <filename>EXTERNAL_KERNEL_TOOLS</filename>
-                    variable tells the OpenEmbedded build system to prefer
-                    the installed external tools.
-                    See the
-                    <link linkend='ref-classes-kernel-yocto'><filename>kernel-yocto</filename></link>
-                    class in <filename>meta/classes</filename> to see how
-                    the variable is used.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTERNALSRC'><glossterm>EXTERNALSRC</glossterm>
-            <info>
-                EXTERNALSRC[doc] = "If externalsrc.bbclass is inherited, this variable points to the source tree, which is outside of the OpenEmbedded build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-externalsrc'><filename>externalsrc</filename></link>
-                    class, this variable points to the source tree, which is
-                    outside of the OpenEmbedded build system.
-                    When set, this variable sets the
-                    <link linkend='var-S'><filename>S</filename></link>
-                    variable, which is what the OpenEmbedded build system uses
-                    to locate unpacked recipe source code.
-                </para>
-
-                <para>
-                    For more information on
-                    <filename>externalsrc.bbclass</filename>, see the
-                    "<link linkend='ref-classes-externalsrc'><filename>externalsrc.bbclass</filename></link>"
-                    section.
-                    You can also find information on how to use this variable
-                    in the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#building-software-from-an-external-source'>Building Software from an External Source</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTERNALSRC_BUILD'><glossterm>EXTERNALSRC_BUILD</glossterm>
-            <info>
-                EXTERNALSRC_BUILD[doc] = "If externalsrc.bbclass is inherited, this variable points to the directory in which the recipe's source code is built, which is outside of the OpenEmbedded build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-externalsrc'><filename>externalsrc</filename></link>
-                    class, this variable points to the directory in which the
-                    recipe's source code is built, which is outside of the
-                    OpenEmbedded build system.
-                    When set, this variable sets the
-                    <link linkend='var-B'><filename>B</filename></link>
-                    variable, which is what the OpenEmbedded build system uses
-                    to locate the Build Directory.
-                </para>
-
-                <para>
-                    For more information on
-                    <filename>externalsrc.bbclass</filename>, see the
-                    "<link linkend='ref-classes-externalsrc'><filename>externalsrc.bbclass</filename></link>"
-                    section.
-                    You can also find information on how to use this variable
-                    in the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#building-software-from-an-external-source'>Building Software from an External Source</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTRA_AUTORECONF'><glossterm>EXTRA_AUTORECONF</glossterm>
-            <info>
-                EXTRA_AUTORECONF[doc] = "Extra options passed to the autoreconf command, which is executed during do_configure."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    For recipes inheriting the
-                    <link linkend='ref-classes-autotools'><filename>autotools</filename></link>
-                    class, you can use <filename>EXTRA_AUTORECONF</filename> to
-                    specify extra options to pass to the
-                    <filename>autoreconf</filename> command that is
-                    executed during the
-                    <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>
-                    task.
-                </para>
-
-                <para>
-                    The default value is "--exclude=autopoint".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTRA_IMAGE_FEATURES'><glossterm>EXTRA_IMAGE_FEATURES</glossterm>
-            <info>
-                EXTRA_IMAGE_FEATURES[doc] = "The list of additional features to include in an image. Configure this variable in the conf/local.conf file in the Build Directory."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of additional features to include in an image.
-                    When listing more than one feature, separate them with
-                    a space.
-                </para>
-
-                <para>
-                    Typically, you configure this variable in your
-                    <filename>local.conf</filename> file, which is found in the
-                    <link linkend='build-directory'>Build Directory</link>.
-                    Although you can use this variable from within a recipe,
-                    best practices dictate that you do not.
-                    <note>
-                        To enable primary features from within the image
-                        recipe, use the
-                        <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>
-                        variable.
-                    </note>
-                </para>
-
-                <para>
-                    Here are some examples of features you can add:
-                    <literallayout class='monospaced'>
-"dbg-pkgs" - Adds -dbg packages for all installed packages
-             including symbol information for debugging and
-             profiling.
-
-"debug-tweaks" - Makes an image suitable for debugging.
-                 For example, allows root logins without
-                 passwords and enables post-installation
-                 logging. See the 'allow-empty-password'
-                 and 'post-install-logging' features in
-                 the "<link linkend='ref-features-image'>Image Features</link>" section for
-                 more information.
-
-"dev-pkgs" - Adds -dev packages for all installed packages.
-             This is useful if you want to develop against
-             the libraries in the image.
-
-"read-only-rootfs" - Creates an image whose root
-                     filesystem is read-only. See the
-                     "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-a-read-only-root-filesystem'>Creating a Read-Only Root Filesystem</ulink>"
-                     section in the Yocto Project
-                     Development Tasks Manual for
-                     more information
-
-"tools-debug" - Adds debugging tools such as gdb and
-                strace.
-
-"tools-sdk" - Adds development tools such as gcc, make,
-              pkgconfig and so forth.
-
-"tools-testapps" - Adds useful testing tools such as
-                   ts_print, aplay, arecord and so
-                   forth.
-
-                    </literallayout>
-                </para>
-
-                <para>
-                    For a complete list of image features that ships with the
-                    Yocto Project, see the
-                    "<link linkend="ref-features-image">Image Features</link>"
-                    section.
-                </para>
-
-                <para>
-                    For an example that shows how to customize your image by
-                    using this variable, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#usingpoky-extend-customimage-imagefeatures'>Customizing Images Using Custom <filename>IMAGE_FEATURES</filename> and <filename>EXTRA_IMAGE_FEATURES</filename></ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTRA_IMAGECMD'><glossterm>EXTRA_IMAGECMD</glossterm>
-            <info>
-                EXTRA_IMAGECMD[doc] = "Specifies additional options for the image creation command that has been specified in IMAGE_CMD. When setting this variable, you should use an override for the associated image type."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies additional options for the image
-                    creation command that has been specified in
-                    <link linkend='var-IMAGE_CMD'><filename>IMAGE_CMD</filename></link>.
-                    When setting this variable, use an override for the
-                    associated image type.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     EXTRA_IMAGECMD_ext3 ?= "-i 4096"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTRA_IMAGEDEPENDS'><glossterm>EXTRA_IMAGEDEPENDS</glossterm>
-            <info>
-                EXTRA_IMAGEDEPENDS[doc] = "A list of recipes to build that do not provide packages for installing into the root filesystem. Use this variable to list recipes that are required to build the final image, but not needed in the root filesystem."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of recipes to build that do not provide packages
-                    for installing into the root filesystem.
-                </para>
-
-                <para>
-                    Sometimes a recipe is required to build the final image but is not
-                    needed in the root filesystem.
-                    You can use the <filename>EXTRA_IMAGEDEPENDS</filename> variable to
-                    list these recipes and thus specify the dependencies.
-                    A typical example is a required bootloader in a machine configuration.
-                </para>
-
-                <note>
-                    To add packages to the root filesystem, see the various
-                    <filename>*<link linkend='var-RDEPENDS'>RDEPENDS</link></filename>
-                    and <filename>*<link linkend='var-RRECOMMENDS'>RRECOMMENDS</link></filename>
-                    variables.
-                </note>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTRANATIVEPATH'><glossterm>EXTRANATIVEPATH</glossterm>
-            <info>
-                EXTRANATIVEPATH[doc] = "A list of subdirectories of ${STAGING_BINDIR_NATIVE} added to the beginning of the environment variable PATH."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of subdirectories of
-                    <filename>${</filename><link linkend='var-STAGING_BINDIR_NATIVE'><filename>STAGING_BINDIR_NATIVE</filename></link><filename>}</filename>
-                    added to the beginning of the environment variable
-                    <filename>PATH</filename>.
-                    As an example, the following prepends
-                    "${STAGING_BINDIR_NATIVE}/foo:${STAGING_BINDIR_NATIVE}/bar:"
-                    to <filename>PATH</filename>:
-                    <literallayout class='monospaced'>
-     EXTRANATIVEPATH = "foo bar"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTRA_OECMAKE'><glossterm>EXTRA_OECMAKE</glossterm>
-            <info>
-                EXTRA_OECMAKE[doc] = "Additional cmake options."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Additional
-                    <ulink url='https://cmake.org/overview/'>CMake</ulink>
-                    options.
-                    See the
-                    <link linkend='ref-classes-cmake'><filename>cmake</filename></link>
-                    class for additional information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTRA_OECONF'><glossterm>EXTRA_OECONF</glossterm>
-            <info>
-                EXTRA_OECONF[doc] = "Additional configure script options."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Additional <filename>configure</filename> script options.
-                    See
-                    <link linkend='var-PACKAGECONFIG_CONFARGS'><filename>PACKAGECONFIG_CONFARGS</filename></link>
-                    for additional information on passing configure script
-                    options.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTRA_OEMAKE'><glossterm>EXTRA_OEMAKE</glossterm>
-            <info>
-                EXTRA_OEMAKE[doc] = "Additional GNU make options."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Additional GNU <filename>make</filename> options.
-                </para>
-
-                <para>
-                    Because the <filename>EXTRA_OEMAKE</filename> defaults to
-                    "", you need to set the variable to specify any required
-                    GNU options.
-                </para>
-
-                <para>
-                    <link linkend='var-PARALLEL_MAKE'><filename>PARALLEL_MAKE</filename></link>
-                    and
-                    <link linkend='var-PARALLEL_MAKEINST'><filename>PARALLEL_MAKEINST</filename></link>
-                    also make use of
-                    <filename>EXTRA_OEMAKE</filename> to pass the required
-                    flags.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTRA_OESCONS'><glossterm>EXTRA_OESCONS</glossterm>
-            <info>
-                EXTRA_OESCONS[doc] = "When a recipe inherits the scons class, this variable specifies additional configuration options you want to pass to the scons command line."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-scons'><filename>scons</filename></link>
-                    class, this variable specifies additional configuration
-                    options you want to pass to the
-                    <filename>scons</filename> command line.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-EXTRA_USERS_PARAMS'><glossterm>EXTRA_USERS_PARAMS</glossterm>
-            <info>
-                EXTRA_USERS_PARAMS[doc] = "When a recipe inherits the extrausers class, this variable provides image level user and group operations."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-extrausers'><filename>extrausers</filename></link>
-                    class, this variable provides image level user and group
-                    operations.
-                    This is a more global method of providing user and group
-                    configuration as compared to using the
-                    <link linkend='ref-classes-useradd'><filename>useradd</filename></link>
-                    class, which ties user and group configurations to a
-                    specific recipe.
-                </para>
-
-                <para>
-                    The set list of commands you can configure using the
-                    <filename>EXTRA_USERS_PARAMS</filename> is shown in the
-                    <filename>extrausers</filename> class.
-                    These commands map to the normal Unix commands of the same
-                    names:
-                    <literallayout class='monospaced'>
-     # EXTRA_USERS_PARAMS = "\
-     # useradd -p '' tester; \
-     # groupadd developers; \
-     # userdel nobody; \
-     # groupdel -g video; \
-     # groupmod -g 1020 developers; \
-     # usermod -s /bin/sh tester; \
-     # "
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-f'><title>F</title>
-
-        <glossentry id='var-FEATURE_PACKAGES'><glossterm>FEATURE_PACKAGES</glossterm>
-            <info>
-                FEATURE_PACKAGES[doc] = "Defines one or more packages to include in an image when a specific item is included in IMAGE_FEATURES. When setting the value, FEATURE_PACKAGES should have the name of the feature item as an override."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines one or more packages to include in an image when
-                    a specific item is included in
-                    <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>.
-                    When setting the value, <filename>FEATURE_PACKAGES</filename>
-                    should have the name of the feature item as an override.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     FEATURE_PACKAGES_widget = "<replaceable>package1</replaceable> <replaceable>package2</replaceable>"
-                    </literallayout>
-                </para>
-
-                <para>
-                    In this example, if "widget" were added to
-                    <filename>IMAGE_FEATURES</filename>, <replaceable>package1</replaceable> and
-                    <replaceable>package2</replaceable> would be included in the image.
-                    <note>
-                        Packages installed by features defined through
-                        <filename>FEATURE_PACKAGES</filename> are often package
-                        groups.
-                        While similarly named, you should not confuse the
-                        <filename>FEATURE_PACKAGES</filename> variable with
-                        package groups, which are discussed elsewhere in the
-                        documentation.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-FEED_DEPLOYDIR_BASE_URI'><glossterm>FEED_DEPLOYDIR_BASE_URI</glossterm>
-            <info>
-                FEED_DEPLOYDIR_BASE_URI[doc] = "Allow to serve ipk deploy directory as an ad hoc feed (bogofeed). Set to base URL of the directory as exported by HTTP. Set of ad hoc feed configs will be generated in the image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the base URL of the server and location within
-                    the document-root that provides the metadata and
-                    packages required by OPKG to support runtime package
-                    management of IPK packages.
-                    You set this variable in your
-                    <filename>local.conf</filename> file.
-                </para>
-
-                <para>
-                    Consider the following example:
-                    <literallayout class='monospaced'>
-     FEED_DEPLOYDIR_BASE_URI = "http://192.168.7.1/BOARD-dir"
-                    </literallayout>
-                    This example assumes you are serving your packages over
-                    HTTP and your databases are located in a directory
-                    named <filename>BOARD-dir</filename>, which is underneath
-                    your HTTP server's document-root.
-                    In this case, the OpenEmbedded build system generates a set
-                    of configuration files for you in your target that work
-                    with the feed.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-FILES'><glossterm>FILES</glossterm>
-            <info>
-                FILES[doc] = "The list of directories or files that are placed in a package."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The list of files and directories that are placed in a
-                    package.
-                    The
-                    <link linkend='var-PACKAGES'><filename>PACKAGES</filename></link>
-                    variable lists the packages generated by a recipe.
-                </para>
-
-                <para>
-                    To use the <filename>FILES</filename> variable, provide a
-                    package name override that identifies the resulting package.
-                    Then, provide a space-separated list of files or paths
-                    that identify the files you want included as part of the
-                    resulting package.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     FILES_${PN} += "${bindir}/mydir1 ${bindir}/mydir2/myfile"
-                    </literallayout>
-                    <note><title>Notes</title>
-                        <itemizedlist>
-                            <listitem><para>
-                                When specifying files or paths, you can pattern
-                                match using Python's
-                                <ulink url='https://docs.python.org/2/library/glob.html'><filename>glob</filename></ulink>
-                                syntax.
-                                For details on the syntax, see the
-                                documentation by following the previous link.
-                                </para></listitem>
-                            <listitem><para>
-                                When specifying paths as part of the
-                                <filename>FILES</filename> variable, it is
-                                good practice to use appropriate path
-                                variables.
-                                For example, use <filename>${sysconfdir}</filename>
-                                rather than <filename>/etc</filename>, or
-                                <filename>${bindir}</filename> rather than
-                                <filename>/usr/bin</filename>.
-                                You can find a list of these variables at the
-                                top of the
-                                <filename>meta/conf/bitbake.conf</filename>
-                                file in the
-                                <link linkend='source-directory'>Source Directory</link>.
-                                You will also find the default values of the
-                                various <filename>FILES_*</filename> variables
-                                in this file.
-                                </para></listitem>
-                        </itemizedlist>
-                    </note>
-                </para>
-
-                <para>
-                    If some of the files you provide with the
-                    <filename>FILES</filename> variable are editable and you
-                    know they should not be overwritten during the package
-                    update process by the Package Management System (PMS), you
-                    can identify these files so that the PMS will not
-                    overwrite them.
-                    See the
-                    <link linkend='var-CONFFILES'><filename>CONFFILES</filename></link>
-                    variable for information on how to identify these files to
-                    the PMS.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-FILES_SOLIBSDEV'><glossterm>FILES_SOLIBSDEV</glossterm>
-            <info>
-                FILES_SOLIBSDEV[doc] = "Defines the full path name of the development symbolic link (symlink) for shared libraries on the target platform."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines the file specification to match
-                    <link linkend='var-SOLIBSDEV'><filename>SOLIBSDEV</filename></link>.
-                    In other words, <filename>FILES_SOLIBSDEV</filename>
-                    defines the full path name of the development symbolic link
-                    (symlink) for shared libraries on the target platform.
-                </para>
-
-                <para>
-                    The following statement from the
-                    <filename>bitbake.conf</filename> shows how it is set:
-                    <literallayout class='monospaced'>
-     FILES_SOLIBSDEV ?= "${base_libdir}/lib*${SOLIBSDEV} ${libdir}/lib*${SOLIBSDEV}"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-FILESEXTRAPATHS'><glossterm>FILESEXTRAPATHS</glossterm>
-            <info>
-                FILESEXTRAPATHS[doc] = "Extends the search path the OpenEmbedded build system uses when looking for files and patches as it processes recipes and append files."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Extends the search path the OpenEmbedded build system uses
-                    when looking for files and patches as it processes recipes
-                    and append files.
-                    The default directories BitBake uses when it processes
-                    recipes are initially defined by the
-                    <link linkend='var-FILESPATH'><filename>FILESPATH</filename></link>
-                    variable.
-                    You can extend <filename>FILESPATH</filename> variable
-                    by using <filename>FILESEXTRAPATHS</filename>.
-                </para>
-
-                <para>
-                    Best practices dictate that you accomplish this by using
-                    <filename>FILESEXTRAPATHS</filename> from within a
-                    <filename>.bbappend</filename> file and that you prepend
-                    paths as follows:
-                    <literallayout class='monospaced'>
-     FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-                    </literallayout>
-                    In the above example, the build system first looks for files
-                    in a directory that has the same name as the corresponding
-                    append file.
-                    <note>
-                        <para>When extending
-                        <filename>FILESEXTRAPATHS</filename>,
-                        be sure to use the immediate expansion
-                        (<filename>:=</filename>) operator.
-                        Immediate expansion makes sure that BitBake evaluates
-                        <link linkend='var-THISDIR'><filename>THISDIR</filename></link>
-                        at the time the directive is encountered rather than at
-                        some later time when expansion might result in a
-                        directory that does not contain the files you need.
-                        </para>
-
-                        <para>Also, include the trailing separating colon
-                        character if you are prepending.
-                        The trailing colon character is necessary because you
-                        are directing BitBake to extend the path by prepending
-                        directories to the search path.</para>
-                    </note>
-                    Here is another common use:
-                    <literallayout class='monospaced'>
-     FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
-                    </literallayout>
-                    In this example, the build system extends the
-                    <filename>FILESPATH</filename> variable to include a
-                    directory named <filename>files</filename> that is in the
-                    same directory as the corresponding append file.
-                </para>
-
-                <para>
-                    This next example specifically adds three paths:
-                    <literallayout class='monospaced'>
-     FILESEXTRAPATHS_prepend := "path_1:path_2:path_3:"
-                    </literallayout>
-                </para>
-
-                <para>
-                    A final example shows how you can extend the search path
-                    and include a
-                    <link linkend='var-MACHINE'><filename>MACHINE</filename></link>-specific
-                    override, which is useful in a BSP layer:
-                    <literallayout class='monospaced'>
-     FILESEXTRAPATHS_prepend_intel-x86-common := "${THISDIR}/${PN}:"
-                    </literallayout>
-                    The previous statement appears in the
-                    <filename>linux-yocto-dev.bbappend</filename> file, which
-                    is found in the Yocto Project
-                    <ulink url='&YOCTO_DOCS_OM_URL;#source-repositories'>Source Repositories</ulink>
-                    in
-                    <filename>meta-intel/common/recipes-kernel/linux</filename>.
-                    Here, the machine override is a special
-                    <link linkend='var-PACKAGE_ARCH'><filename>PACKAGE_ARCH</filename></link>
-                    definition for multiple <filename>meta-intel</filename>
-                    machines.
-                    <note>
-                        For a layer that supports a single BSP, the override
-                        could just be the value of <filename>MACHINE</filename>.
-                    </note>
-                </para>
-
-                <para>
-                    By prepending paths in <filename>.bbappend</filename>
-                    files, you allow multiple append files that reside in
-                    different layers but are used for the same recipe to
-                    correctly extend the path.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-FILESOVERRIDES'><glossterm>FILESOVERRIDES</glossterm>
-            <info>
-                FILESOVERRIDES[doc] = "A subset of OVERRIDES used by the OpenEmbedded build system for creating FILESPATH."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A subset of <link linkend='var-OVERRIDES'><filename>OVERRIDES</filename></link>
-                    used by the OpenEmbedded build system for creating
-                    <link linkend='var-FILESPATH'><filename>FILESPATH</filename></link>.
-                    The <filename>FILESOVERRIDES</filename> variable uses
-                    overrides to automatically extend the
-                    <link linkend='var-FILESPATH'><filename>FILESPATH</filename></link>
-                    variable.
-                    For an example of how that works, see the
-                    <link linkend='var-FILESPATH'><filename>FILESPATH</filename></link>
-                    variable description.
-                    Additionally, you find more information on how overrides
-                    are handled in the
-                    "<ulink url='&YOCTO_DOCS_BB_URL;#conditional-syntax-overrides'>Conditional Syntax (Overrides)</ulink>"
-                    section of the BitBake User Manual.
-                </para>
-
-                <para>
-                    By default, the <filename>FILESOVERRIDES</filename>
-                    variable is defined as:
-                    <literallayout class='monospaced'>
-     FILESOVERRIDES = "${TRANSLATED_TARGET_ARCH}:${MACHINEOVERRIDES}:${DISTROOVERRIDES}"
-                    </literallayout>
-
-                    <note>
-                        Do not hand-edit the <filename>FILESOVERRIDES</filename>
-                        variable.
-                        The values match up with expected overrides and are
-                        used in an expected manner by the build system.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-FILESPATH'><glossterm>FILESPATH</glossterm>
-            <info>
-                FILESPATH[doc] = "The default set of directories the OpenEmbedded build system uses when searching for patches and files. It is defined in the base.bbclass class found in meta/classes in the Source Directory. Do not hand-edit the FILESPATH variable."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The default set of directories the OpenEmbedded build
-                    system uses when searching for patches and files.
-                </para>
-
-                <para>
-                    During the build process, BitBake searches each directory
-                    in <filename>FILESPATH</filename> in the specified order
-                    when looking for files and patches specified by each
-                    <filename>file://</filename> URI in a recipe's
-                    <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>
-                    statements.
-                </para>
-
-                <para>
-                    The default value for the <filename>FILESPATH</filename>
-                    variable is defined in the <filename>base.bbclass</filename>
-                    class found in <filename>meta/classes</filename> in the
-                    <link linkend='source-directory'>Source Directory</link>:
-                    <literallayout class='monospaced'>
-     FILESPATH = "${@base_set_filespath(["${FILE_DIRNAME}/${BP}", \
-        "${FILE_DIRNAME}/${BPN}", "${FILE_DIRNAME}/files"], d)}"
-                    </literallayout>
-                    The <filename>FILESPATH</filename> variable is automatically
-                    extended using the overrides from the
-                    <link linkend='var-FILESOVERRIDES'><filename>FILESOVERRIDES</filename></link>
-                    variable.
-                    <note><title>Notes</title>
-                        <itemizedlist>
-                            <listitem><para>
-                                Do not hand-edit the
-                                <filename>FILESPATH</filename> variable.
-                                If you want the build system to look in
-                                directories other than the defaults, extend the
-                                <filename>FILESPATH</filename> variable by
-                                using the
-                                <link linkend='var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></link>
-                                variable.
-                                </para></listitem>
-                            <listitem><para>
-                                Be aware that the default
-                                <filename>FILESPATH</filename> directories do
-                                not map to directories in custom layers
-                                where append files
-                                (<filename>.bbappend</filename>) are used.
-                                If you want the build system to find patches
-                                or files that reside with your append files,
-                                you need to extend the
-                                <filename>FILESPATH</filename> variable by
-                                using the <filename>FILESEXTRAPATHS</filename>
-                                variable.
-                                </para></listitem>
-                        </itemizedlist>
-                    </note>
-                </para>
-
-                <para>
-                    You can take advantage of this searching behavior in
-                    useful ways.
-                    For example, consider a case where the following
-                    directory structure exists for general and machine-specific
-                    configurations:
-                    <literallayout class='monospaced'>
-     files/defconfig
-     files/MACHINEA/defconfig
-     files/MACHINEB/defconfig
-                    </literallayout>
-                    Also in the example, the <filename>SRC_URI</filename>
-                    statement contains "file://defconfig".
-                    Given this scenario, you can set
-                    <link linkend='var-MACHINE'><filename>MACHINE</filename></link>
-                    to "MACHINEA" and cause the build system to use files
-                    from <filename>files/MACHINEA</filename>.
-                    Set <filename>MACHINE</filename> to "MACHINEB" and the
-                    build system uses files from
-                    <filename>files/MACHINEB</filename>.
-                    Finally, for any machine other than "MACHINEA" and
-                    "MACHINEB", the build system uses files from
-                    <filename>files/defconfig</filename>.
-                </para>
-
-                <para>
-                    You can find out more about the patching process in the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#patching-dev-environment'>Patching</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual
-                    and the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#new-recipe-patching-code'>Patching Code</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    See the
-                    <link linkend='ref-tasks-patch'><filename>do_patch</filename></link>
-                    task as well.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-FILESYSTEM_PERMS_TABLES'><glossterm>FILESYSTEM_PERMS_TABLES</glossterm>
-            <info>
-                FILESYSTEM_PERMS_TABLES[doc] = "Allows you to define your own file permissions settings table as part of your configuration for the packaging process."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Allows you to define your own file permissions settings table as part of
-                    your configuration for the packaging process.
-                    For example, suppose you need a consistent set of custom permissions for
-                    a set of groups and users across an entire work project.
-                    It is best to do this in the packages themselves but this is not always
-                    possible.
-                </para>
-
-                <para>
-                    By default, the OpenEmbedded build system uses the <filename>fs-perms.txt</filename>, which
-                    is located in the <filename>meta/files</filename> folder in the
-                    <link linkend='source-directory'>Source Directory</link>.
-                    If you create your own file permissions setting table, you should place it in your
-                    layer or the distro's layer.
-                </para>
-
-                <para>
-                    You define the <filename>FILESYSTEM_PERMS_TABLES</filename> variable in the
-                    <filename>conf/local.conf</filename> file, which is found in the
-                    <link linkend='build-directory'>Build Directory</link>, to
-                    point to your custom <filename>fs-perms.txt</filename>.
-                    You can specify more than a single file permissions setting table.
-                    The paths you specify to these files must be defined within the
-                    <link linkend='var-BBPATH'><filename>BBPATH</filename></link> variable.
-                </para>
-
-                <para>
-                    For guidance on how to create your own file permissions settings table file,
-                    examine the existing <filename>fs-perms.txt</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-FIT_HASH_ALG'><glossterm>FIT_HASH_ALG</glossterm>
-            <info>
-               FIT_HASH_ALG[doc] = "Specifies the hash algorithm used in creating the FIT Image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the hash algorithm used in creating the FIT Image.
-                    For e.g. sha256.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-FIT_SIGN_ALG'><glossterm>FIT_SIGN_ALG</glossterm>
-            <info>
-               FIT_SIGN_ALG[doc] = "Specifies the signature algorithm used in creating the FIT Image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the signature algorithm used in creating the FIT Image.
-                    For e.g. rsa2048.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-FONT_EXTRA_RDEPENDS'><glossterm>FONT_EXTRA_RDEPENDS</glossterm>
-            <info>
-                FONT_EXTRA_RDEPENDS[doc] = "When a recipe inherits the fontcache class, this variable specifies runtime dependencies for font packages. This variable defaults to 'fontconfig-utils'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-fontcache'><filename>fontcache</filename></link>
-                    class, this variable specifies the runtime dependencies
-                    for font packages.
-                    By default, the <filename>FONT_EXTRA_RDEPENDS</filename>
-                    is set to "fontconfig-utils".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-FONT_PACKAGES'><glossterm>FONT_PACKAGES</glossterm>
-            <info>
-                FONT_PACKAGES[doc] = "When a recipe inherits the fontcache class, this variable identifies packages containing font files that need to be cached by Fontconfig."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-fontcache'><filename>fontcache</filename></link>
-                    class, this variable identifies packages containing font
-                    files that need to be cached by Fontconfig.
-                    By default, the <filename>fontcache</filename> class assumes
-                    that fonts are in the recipe's main package
-                    (i.e. <filename>${</filename><link linkend='var-PN'><filename>PN</filename></link><filename>}</filename>).
-                    Use this variable if fonts you need are in a package
-                    other than that main package.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-FORCE_RO_REMOVE'><glossterm>FORCE_RO_REMOVE</glossterm>
-            <info>
-                FORCE_RO_REMOVE[doc] = "Forces the removal of the packages listed in ROOTFS_RO_UNNEEDED during the generation of the root filesystem."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Forces the removal of the packages listed in
-                    <filename>ROOTFS_RO_UNNEEDED</filename> during the
-                    generation of the root filesystem.
-                </para>
-
-                <para>
-                    Set the variable to "1" to force the removal of these
-                    packages.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-FULL_OPTIMIZATION'><glossterm>FULL_OPTIMIZATION</glossterm>
-            <info>
-                FULL_OPTIMIZATION[doc]= "The options to pass in TARGET_CFLAGS and CFLAGS when compiling an optimized system. This variable defaults to '-fexpensive-optimizations -fomit-frame-pointer -frename-registers -O2'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The options to pass in
-                    <filename><link linkend='var-TARGET_CFLAGS'>TARGET_CFLAGS</link></filename>
-                    and <filename><link linkend='var-CFLAGS'>CFLAGS</link></filename>
-                    when compiling an optimized system.
-                    This variable defaults to
-                    "-O2 -pipe ${DEBUG_FLAGS}".
-                </para>
-            </glossdef>
-        </glossentry>
-    </glossdiv>
-
-    <glossdiv id='var-glossary-g'><title>G</title>
-
-        <glossentry id='var-GCCPIE'><glossterm>GCCPIE</glossterm>
-            <info>
-                GCCPIE[doc] = "Enables Position Independent Executables (PIE) within the GNU C Compiler (GCC)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Enables Position Independent Executables (PIE) within the
-                    GNU C Compiler (GCC).
-                    Enabling PIE in the GCC makes Return Oriented Programming
-                    (ROP) attacks much more difficult to
-                    execute.
-                </para>
-
-                <para>
-                    By default the <filename>security_flags.inc</filename>
-                    file enables PIE by setting the variable as follows:
-                    <literallayout class='monospaced'>
-     GCCPIE ?= "--enable-default-pie"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-GCCVERSION'><glossterm>GCCVERSION</glossterm>
-            <info>
-                GCCVERSION[doc] = "Specifies the default version of the GNU C Compiler (GCC) to use."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the default version of the GNU C Compiler (GCC)
-                    used for compilation.
-                    By default, <filename>GCCVERSION</filename> is set to
-                    "8.x" in the
-                    <filename>meta/conf/distro/include/tcmode-default.inc</filename>
-                    include file:
-                    <literallayout class='monospaced'>
-     GCCVERSION ?= "8.%"
-                    </literallayout>
-                    You can override this value by setting it in a configuration
-                    file such as the <filename>local.conf</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-GDB'><glossterm>GDB</glossterm>
-            <info>
-                GDB[doc] = "The minimal command and arguments to run the GNU Debugger."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The minimal command and arguments to run the GNU Debugger.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-GITDIR'><glossterm>GITDIR</glossterm>
-            <info>
-                GITDIR[doc] = "The directory where Git clones will be stored."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The directory in which a local copy of a Git repository
-                    is stored when it is cloned.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-GLIBC_GENERATE_LOCALES'><glossterm>GLIBC_GENERATE_LOCALES</glossterm>
-            <info>
-                GLIBC_GENERATE_LOCALES[doc]= "Specifies the list of GLIBC locales to generate should you not wish to generate all LIBC locals, which can be time consuming."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the list of GLIBC locales to generate should you
-                    not wish to generate all LIBC locals, which can be time
-                    consuming.
-                    <note>
-                        If you specifically remove the locale
-                        <filename>en_US.UTF-8</filename>, you must set
-                        <link linkend='var-IMAGE_LINGUAS'><filename>IMAGE_LINGUAS</filename></link>
-                        appropriately.
-                    </note>
-                </para>
-
-                <para>
-                    You can set <filename>GLIBC_GENERATE_LOCALES</filename>
-                    in your <filename>local.conf</filename> file.
-                    By default, all locales are generated.
-                    <literallayout class='monospaced'>
-      GLIBC_GENERATE_LOCALES = "en_GB.UTF-8 en_US.UTF-8"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-GROUPADD_PARAM'><glossterm>GROUPADD_PARAM</glossterm>
-            <info>
-                GROUPADD_PARAM[doc] = "When a recipe inherits the useradd class, this variable specifies for a package what parameters should be passed to the groupadd command if you wish to add a group to the system when the package is installed."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-useradd'><filename>useradd</filename></link>
-                    class, this variable
-                    specifies for a package what parameters should be passed
-                    to the <filename>groupadd</filename> command
-                    if you wish to add a group to the system when the package
-                    is installed.
-                </para>
-
-                <para>
-                    Here is an example from the <filename>dbus</filename>
-                    recipe:
-                    <literallayout class='monospaced'>
-     GROUPADD_PARAM_${PN} = "-r netdev"
-                    </literallayout>
-                    For information on the standard Linux shell command
-                    <filename>groupadd</filename>, see
-                    <ulink url='http://linux.die.net/man/8/groupadd'></ulink>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-GROUPMEMS_PARAM'><glossterm>GROUPMEMS_PARAM</glossterm>
-            <info>
-                GROUPMEMS_PARAM[doc] = "When a recipe inherits the useradd class, this variable specifies for a package what parameters should be passed to the groupmems command if you wish to modify the members of a group when the package is installed."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-useradd'><filename>useradd</filename></link>
-                    class, this variable
-                    specifies for a package what parameters should be passed
-                    to the <filename>groupmems</filename> command
-                    if you wish to modify the members of a group when the
-                    package is installed.
-                </para>
-
-                <para>
-                    For information on the standard Linux shell command
-                    <filename>groupmems</filename>, see
-                    <ulink url='http://linux.die.net/man/8/groupmems'></ulink>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-GRUB_GFXSERIAL'><glossterm>GRUB_GFXSERIAL</glossterm>
-            <info>
-                GRUB_GFXSERIAL[doc] = "Configures the GNU GRand Unified Bootloader (GRUB) to have graphics and serial in the boot menu."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Configures the GNU GRand Unified Bootloader (GRUB) to have
-                    graphics and serial in the boot menu.
-                    Set this variable to "1" in your
-                    <filename>local.conf</filename> or distribution
-                    configuration file to enable graphics and serial
-                    in the menu.
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='ref-classes-grub-efi'><filename>grub-efi</filename></link>
-                    class for more information on how this variable is used.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-GRUB_OPTS'><glossterm>GRUB_OPTS</glossterm>
-            <info>
-                GRUB_OPTS[doc] = "Additional options to add to the GNU GRand Unified Bootloader (GRUB) configuration."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Additional options to add to the GNU GRand Unified
-                    Bootloader (GRUB) configuration.
-                    Use a semi-colon character (<filename>;</filename>) to
-                    separate multiple options.
-                </para>
-
-                <para>
-                    The <filename>GRUB_OPTS</filename> variable is optional.
-                    See the
-                    <link linkend='ref-classes-grub-efi'><filename>grub-efi</filename></link>
-                    class for more information on how this variable is used.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-GRUB_TIMEOUT'><glossterm>GRUB_TIMEOUT</glossterm>
-            <info>
-                GRUB_TIMEOUT[doc] = "Specifies the timeout before executing the default LABEL in the GNU GRand Unified Bootloader (GRUB)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the timeout before executing the default
-                    <filename>LABEL</filename> in the GNU GRand Unified
-                    Bootloader (GRUB).
-                </para>
-
-                <para>
-                    The <filename>GRUB_TIMEOUT</filename> variable is optional.
-                    See the
-                    <link linkend='ref-classes-grub-efi'><filename>grub-efi</filename></link>
-                    class for more information on how this variable is used.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-GTKIMMODULES_PACKAGES'><glossterm>GTKIMMODULES_PACKAGES</glossterm>
-            <info>
-                GTKIMMODULES_PACKAGES[doc] = "For recipes that inherit the gtk-immodules-cache class, this variable specifies the packages that contain the GTK+ input method modules being installed when the modules are in packages other than the main package."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-gtk-immodules-cache'><filename>gtk-immodules-cache</filename></link>
-                    class, this variable specifies the packages that contain the
-                    GTK+ input method modules being installed when the modules
-                    are in packages other than the main package.
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-h'><title>H</title>
-
-        <glossentry id='var-HOMEPAGE'><glossterm>HOMEPAGE</glossterm>
-            <info>
-                HOMEPAGE[doc] = "Website where more information about the software the recipe is building can be found."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Website where more information about the software the recipe is building
-                    can be found.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-HOST_ARCH'><glossterm>HOST_ARCH</glossterm>
-            <info>
-                HOST_ARCH[doc] = "The name of the target architecture. Normally same as the TARGET_ARCH."
-
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The name of the target architecture, which is normally
-                    the same as
-                    <link linkend='var-TARGET_ARCH'><filename>TARGET_ARCH</filename></link>.
-                    The OpenEmbedded build system supports many
-                    architectures.
-                    Here is an example list of architectures supported.
-                    This list is by no means complete as the architecture
-                    is configurable:
-                    <literallayout class='monospaced'>
-     arm
-     i586
-     x86_64
-     powerpc
-     powerpc64
-     mips
-     mipsel
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-HOST_CC_ARCH'><glossterm>HOST_CC_ARCH</glossterm>
-            <info>
-                HOST_CC_ARCH[doc] = "The name of the host architecture. Normally same as the TARGET_CC_ARCH."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies architecture-specific compiler flags that are
-                    passed to the C compiler.
-                </para>
-
-                <para>
-                    Default initialization for <filename>HOST_CC_ARCH</filename>
-                    varies depending on what is being built:
-                    <itemizedlist>
-                        <listitem><para>
-                            <link linkend='var-TARGET_CC_ARCH'><filename>TARGET_CC_ARCH</filename></link>
-                            when building for the target
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>BUILD_CC_ARCH</filename>
-                            when building for the build host (i.e.
-                            <filename>-native</filename>)
-                            </para></listitem>
-                        <listitem><para>
-                            <filename>BUILDSDK_CC_ARCH</filename>
-                            when building for an SDK (i.e.
-                            <filename>nativesdk-</filename>)
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-HOST_OS'><glossterm>HOST_OS</glossterm>
-            <info>
-                HOST_OS[doc] = "The name of the target operating system. Normally the same as the TARGET_OS."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the name of the target operating system, which
-                    is normally the same as the
-                    <link linkend='var-TARGET_OS'><filename>TARGET_OS</filename></link>.
-                    The variable can be set to "linux" for <filename>glibc</filename>-based systems and
-                    to "linux-musl" for <filename>musl</filename>.
-                    For ARM/EABI targets, there are also "linux-gnueabi" and
-                    "linux-musleabi" values possible.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-HOST_PREFIX'><glossterm>HOST_PREFIX</glossterm>
-            <info>
-                HOST_PREFIX[doc] = "The prefix for the cross compile toolchain. Normally same as the TARGET_PREFIX."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the prefix for the cross-compile toolchain.
-                    <filename>HOST_PREFIX</filename> is normally the same as
-                    <link linkend='var-TARGET_PREFIX'><filename>TARGET_PREFIX</filename></link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-HOST_SYS'><glossterm>HOST_SYS</glossterm>
-            <info>
-                HOST_SYS[doc] = "Specifies the system, including the architecture and the operating system, for which the build is occurring in the context of the current recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the system, including the architecture and the
-                    operating system, for which the build is occurring
-                    in the context of the current recipe.
-                </para>
-
-                <para>
-                    The OpenEmbedded build system automatically sets this
-                    variable based on
-                    <link linkend='var-HOST_ARCH'><filename>HOST_ARCH</filename></link>,
-                    <link linkend='var-HOST_VENDOR'><filename>HOST_VENDOR</filename></link>,
-                    and
-                    <link linkend='var-HOST_OS'><filename>HOST_OS</filename></link>
-                    variables.
-                    <note>
-                        You do not need to set the variable yourself.
-                    </note>
-                </para>
-
-                <para>
-                    Consider these two examples:
-                    <itemizedlist>
-                        <listitem><para>Given a native recipe on a 32-bit
-                            x86 machine running Linux, the value is
-                            "i686-linux".
-                            </para></listitem>
-                        <listitem><para>Given a recipe being built for a
-                            little-endian MIPS target running Linux,
-                            the value might be "mipsel-linux".
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-HOSTTOOLS'><glossterm>HOSTTOOLS</glossterm>
-            <info>
-                HOSTTOOLS[doc] = "A space-separated list (filter) of tools on the build host that should be allowed to be called from within build tasks."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A space-separated list (filter) of tools on the build host
-                    that should be allowed to be called from within build tasks.
-                    Using this filter helps reduce the possibility of host
-                    contamination.
-                    If a tool specified in the value of
-                    <filename>HOSTTOOLS</filename> is not found on the
-                    build host, the OpenEmbedded build system produces
-                    an error and the build is not started.
-                </para>
-
-                <para>
-                    For additional information, see
-                    <link linkend='var-HOSTTOOLS_NONFATAL'><filename>HOSTTOOLS_NONFATAL</filename></link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-HOSTTOOLS_NONFATAL'><glossterm>HOSTTOOLS_NONFATAL</glossterm>
-            <info>
-                HOSTTOOLS_NONFATAL[doc] = "A space-separated list (filter) of tools on the build host that should be allowed to be called from within build tasks."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A space-separated list (filter) of tools on the build host
-                    that should be allowed to be called from within build tasks.
-                    Using this filter helps reduce the possibility of host
-                    contamination.
-                    Unlike
-                    <link linkend='var-HOSTTOOLS'><filename>HOSTTOOLS</filename></link>,
-                    the OpenEmbedded build system does not produce an error
-                    if a tool specified in the value of
-                    <filename>HOSTTOOLS_NONFATAL</filename> is not found on the
-                    build host.
-                    Thus, you can use <filename>HOSTTOOLS_NONFATAL</filename>
-                    to filter optional host tools.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-HOST_VENDOR'><glossterm>HOST_VENDOR</glossterm>
-            <info>
-                HOST_VENDOR[doc] = "The name of the vendor. Normally same as the TARGET_VENDOR."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the name of the vendor.
-                    <filename>HOST_VENDOR</filename> is normally the same as
-                    <link linkend='var-TARGET_VENDOR'><filename>TARGET_VENDOR</filename></link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-i'><title>I</title>
-
-        <glossentry id='var-ICECC_DISABLED'><glossterm>ICECC_DISABLED</glossterm>
-            <info>
-                ICECC_DISABLED[doc] = "Disables or enables the icecc (Icecream) function."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Disables or enables the <filename>icecc</filename>
-                    (Icecream) function.
-                    For more information on this function and best practices
-                    for using this variable, see the
-                    "<link linkend='ref-classes-icecc'><filename>icecc.bbclass</filename></link>"
-                    section.
-                </para>
-
-                <para>
-                    Setting this variable to "1" in your
-                    <filename>local.conf</filename> disables the function:
-                    <literallayout class='monospaced'>
-     ICECC_DISABLED ??= "1"
-                    </literallayout>
-                    To enable the function, set the variable as follows:
-                    <literallayout class='monospaced'>
-     ICECC_DISABLED = ""
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ICECC_ENV_EXEC'><glossterm>ICECC_ENV_EXEC</glossterm>
-            <info>
-                ICECC_ENV_EXEC[doc] = "Points to the icecc-create-env script that you provide."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the <filename>icecc-create-env</filename> script
-                    that you provide.
-                    This variable is used by the
-                    <link linkend='ref-classes-icecc'><filename>icecc</filename></link>
-                    class.
-                    You set this variable in your
-                    <filename>local.conf</filename> file.
-                </para>
-
-                <para>
-                    If you do not point to a script that you provide, the
-                    OpenEmbedded build system uses the default script provided
-                    by the <filename>icecc-create-env.bb</filename> recipe,
-                    which is a modified version and not the one that comes with
-                    <filename>icecc</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ICECC_PARALLEL_MAKE'><glossterm>ICECC_PARALLEL_MAKE</glossterm>
-            <info>
-                ICECC_PARALLEL_MAKE[doc] = "Extra options passed to the make command during the do_compile task that specify parallel compilation."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Extra options passed to the <filename>make</filename>
-                    command during the
-                    <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>
-                    task that specify parallel compilation.
-                    This variable usually takes the form of
-                    "-j <replaceable>x</replaceable>", where
-                    <replaceable>x</replaceable> represents the maximum
-                    number of parallel threads <filename>make</filename> can
-                    run.
-                    <note>
-                        The options passed affect builds on all enabled
-                        machines on the network, which are machines running the
-                        <filename>iceccd</filename> daemon.
-                    </note>
-                </para>
-
-                <para>
-                    If your enabled machines support multiple cores,
-                    coming up with the maximum number of parallel threads
-                    that gives you the best performance could take some
-                    experimentation since machine speed, network lag,
-                    available memory, and existing machine loads can all
-                    affect build time.
-                    Consequently, unlike the
-                    <link linkend='var-PARALLEL_MAKE'><filename>PARALLEL_MAKE</filename></link>
-                    variable, there is no rule-of-thumb for setting
-                    <filename>ICECC_PARALLEL_MAKE</filename> to achieve
-                    optimal performance.
-                </para>
-
-                <para>
-                    If you do not set <filename>ICECC_PARALLEL_MAKE</filename>,
-                    the build system does not use it (i.e. the system does
-                    not detect and assign the number of cores as is done with
-                    <filename>PARALLEL_MAKE</filename>).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ICECC_PATH'><glossterm>ICECC_PATH</glossterm>
-            <info>
-                ICECC_PATH[doc] = "The location of the icecc binary."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The location of the <filename>icecc</filename> binary.
-                    You can set this variable in your
-                    <filename>local.conf</filename> file.
-                    If your <filename>local.conf</filename> file does not define
-                    this variable, the
-                    <link linkend='ref-classes-icecc'><filename>icecc</filename></link>
-                    class attempts to define it by locating
-                    <filename>icecc</filename> using <filename>which</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ICECC_USER_CLASS_BL'><glossterm>ICECC_USER_CLASS_BL</glossterm>
-            <info>
-                ICECC_USER_CLASS_BL[doc] = "Identifies user classes that you do not want the Icecream distributed compile support to consider."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Identifies user classes that you do not want the
-                    Icecream distributed compile support to consider.
-                    This variable is used by the
-                    <link linkend='ref-classes-icecc'><filename>icecc</filename></link>
-                    class.
-                    You set this variable in your
-                    <filename>local.conf</filename> file.
-                </para>
-
-                <para>
-                    When you list classes using this variable, you are
-                    "blacklisting" them from distributed compilation across
-                    remote hosts.
-                    Any classes you list will be distributed and compiled
-                    locally.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ICECC_USER_PACKAGE_BL'><glossterm>ICECC_USER_PACKAGE_BL</glossterm>
-            <info>
-                ICECC_USER_PACKAGE_BL[doc] = "Identifies user recipes that you do not want the Icecream distributed compile support to consider."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Identifies user recipes that you do not want the
-                    Icecream distributed compile support to consider.
-                    This variable is used by the
-                    <link linkend='ref-classes-icecc'><filename>icecc</filename></link>
-                    class.
-                    You set this variable in your
-                    <filename>local.conf</filename> file.
-                </para>
-
-                <para>
-                    When you list packages using this variable, you are
-                    "blacklisting" them from distributed compilation across
-                    remote hosts.
-                    Any packages you list will be distributed and compiled
-                    locally.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ICECC_USER_PACKAGE_WL'><glossterm>ICECC_USER_PACKAGE_WL</glossterm>
-            <info>
-                ICECC_USER_PACKAGE_WL[doc] = "Identifies user recipes that use an empty PARALLEL_MAKE variable that you want to force remote distributed compilation on using the Icecream distributed compile support."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Identifies user recipes that use an empty
-                    <link linkend='var-PARALLEL_MAKE'><filename>PARALLEL_MAKE</filename></link>
-                    variable that you want to force remote distributed
-                    compilation on using the Icecream distributed compile
-                    support.
-                    This variable is used by the
-                    <link linkend='ref-classes-icecc'><filename>icecc</filename></link>
-                    class.
-                    You set this variable in your
-                    <filename>local.conf</filename> file.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_BASENAME'><glossterm>IMAGE_BASENAME</glossterm>
-            <info>
-                IMAGE_BASENAME[doc] = "The base name of image output files."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The base name of image output files.
-                    This variable defaults to the recipe name
-                    (<filename>${</filename><link linkend='var-PN'><filename>PN</filename></link><filename>}</filename>).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_BOOT_FILES'><glossterm>IMAGE_BOOT_FILES</glossterm>
-            <info>
-                IMAGE_BOOT_FILES[doc] = "A space-separated list of files from ${DEPLOY_DIR_IMAGE} to place in boot partition."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A space-separated list of files installed into the
-                    boot partition when preparing an image using the Wic tool
-                    with the <filename>bootimg-partition</filename> or <filename>bootimg-efi</filename> source
-                    plugin.
-                    By default, the files are installed under the same name as
-                    the source files.
-                    To change the installed name, separate it from the
-                    original name with a semi-colon (;).
-                    Source files need to be located in
-                    <link linkend='var-DEPLOY_DIR_IMAGE'><filename>DEPLOY_DIR_IMAGE</filename></link>.
-                    Here are two examples:
-
-                    <literallayout class="monospaced">
-     IMAGE_BOOT_FILES = "u-boot.img uImage;kernel"
-     IMAGE_BOOT_FILES = "u-boot.${UBOOT_SUFFIX} ${KERNEL_IMAGETYPE}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    Alternatively, source files can be picked up using
-                    a glob pattern.
-                    In this case, the destination file must have the same name
-                    as the base name of the source file path.
-                    To install files into a directory within the
-                    target location, pass its name after a semi-colon
-                    (;).
-                    Here are two examples:
-                    <literallayout class="monospaced">
-     IMAGE_BOOT_FILES = "bcm2835-bootfiles/*"
-     IMAGE_BOOT_FILES = "bcm2835-bootfiles/*;boot/"
-                    </literallayout>
-                    The first example installs all files from
-                    <filename>${DEPLOY_DIR_IMAGE}/bcm2835-bootfiles</filename>
-                    into the root of the target partition.
-                    The second example installs the same files into a
-                    <filename>boot</filename> directory within the
-                    target partition.
-                </para>
-
-                <para>
-                    You can find information on how to use the Wic tool in the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-partitioned-images-using-wic'>Creating Partitioned Images Using Wic</ulink>"
-                    section of the Yocto Project Development Tasks Manual.
-                    Reference material for Wic is located in the
-                    "<ulink url='&YOCTO_DOCS_REF_URL;#ref-kickstart'>OpenEmbedded Kickstart (.wks) Reference</ulink>"
-                    chapter.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_CLASSES'><glossterm>IMAGE_CLASSES</glossterm>
-            <info>
-                IMAGE_CLASSES[doc] = "A list of classes that all images should inherit."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of classes that all images should inherit.
-                    You typically use this variable to specify the list of
-                    classes that register the different types of images
-                    the OpenEmbedded build system creates.
-                </para>
-
-                <para>
-                    The default value for <filename>IMAGE_CLASSES</filename> is
-                    <filename>image_types</filename>.
-                    You can set this variable in your
-                    <filename>local.conf</filename> or in a distribution
-                    configuration file.
-                </para>
-
-                <para>
-                    For more information, see
-                    <filename>meta/classes/image_types.bbclass</filename> in the
-                    <link linkend='source-directory'>Source Directory</link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_CMD'><glossterm>IMAGE_CMD</glossterm>
-            <info>
-                IMAGE_CMD[doc] = "Specifies the command to create the image file for a specific image type, which corresponds to the value set set in IMAGE_FSTYPES, (e.g. ext3, btrfs, and so forth)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the command to create the image file for a
-                    specific image type, which corresponds to the value set
-                    set in
-                    <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>,
-                    (e.g. <filename>ext3</filename>,
-                    <filename>btrfs</filename>, and so forth).
-                    When setting this variable, you should use
-                    an override for the associated type.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     IMAGE_CMD_jffs2 = "mkfs.jffs2 --root=${IMAGE_ROOTFS} \
-        --faketime --output=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.jffs2 \
-        ${EXTRA_IMAGECMD}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    You typically do not need to set this variable unless
-                    you are adding support for a new image type.
-                    For more examples on how to set this variable, see the
-                    <link linkend='ref-classes-image_types'><filename>image_types</filename></link>
-                    class file, which is
-                    <filename>meta/classes/image_types.bbclass</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_DEVICE_TABLES'><glossterm>IMAGE_DEVICE_TABLES</glossterm>
-            <info>
-                IMAGE_DEVICE_TABLES[doc] = "Specifies one or more files that contain custom device tables that are passed to the makedevs command as part of creating an image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies one or more files that contain custom device
-                    tables that are passed to the
-                    <filename>makedevs</filename> command as part of creating
-                    an image.
-                    These files list basic device nodes that should be
-                    created under <filename>/dev</filename> within the image.
-                    If <filename>IMAGE_DEVICE_TABLES</filename> is not set,
-                    <filename>files/device_table-minimal.txt</filename> is
-                    used, which is located by
-                    <link linkend='var-BBPATH'><filename>BBPATH</filename></link>.
-                    For details on how you should write device table files,
-                    see <filename>meta/files/device_table-minimal.txt</filename>
-                    as an example.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_FEATURES'><glossterm>IMAGE_FEATURES</glossterm>
-            <info>
-                IMAGE_FEATURES[doc] = "The primary list of features to include in an image. Configure this variable in an image recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The primary list of features to include in an image.
-                    Typically, you configure this variable in an image recipe.
-                    Although you can use this variable from your
-                    <filename>local.conf</filename> file, which is found in the
-                    <link linkend='build-directory'>Build Directory</link>,
-                    best practices dictate that you do not.
-                    <note>
-                        To enable extra features from outside the image recipe,
-                        use the
-                        <filename><link linkend='var-EXTRA_IMAGE_FEATURES'>EXTRA_IMAGE_FEATURES</link></filename> variable.
-                    </note>
-                </para>
-
-                <para>
-                    For a list of image features that ships with the Yocto
-                    Project, see the
-                    "<link linkend="ref-features-image">Image Features</link>"
-                    section.
-                </para>
-
-                <para>
-                    For an example that shows how to customize your image by
-                    using this variable, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#usingpoky-extend-customimage-imagefeatures'>Customizing Images Using Custom <filename>IMAGE_FEATURES</filename> and <filename>EXTRA_IMAGE_FEATURES</filename></ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_FSTYPES'><glossterm>IMAGE_FSTYPES</glossterm>
-            <info>
-                IMAGE_FSTYPES[doc] = "Formats of root filesystem images that you want to have created."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the formats the OpenEmbedded build system uses
-                    during the build when creating the root filesystem.
-                    For example, setting <filename>IMAGE_FSTYPES</filename>
-                    as follows causes the build system to create root
-                    filesystems using two formats: <filename>.ext3</filename>
-                    and <filename>.tar.bz2</filename>:
-                    <literallayout class='monospaced'>
-     IMAGE_FSTYPES = "ext3 tar.bz2"
-                    </literallayout>
-                </para>
-
-                <para>
-                    For the complete list of supported image formats from which
-                    you can choose, see
-                    <link linkend='var-IMAGE_TYPES'><filename>IMAGE_TYPES</filename></link>.
-                </para>
-
-                <note><title>Notes</title>
-                    <itemizedlist>
-                        <listitem><para>
-                            If an image recipe uses the "inherit image" line
-                            and you are setting
-                            <filename>IMAGE_FSTYPES</filename> inside the
-                            recipe, you must set
-                            <filename>IMAGE_FSTYPES</filename> prior to
-                            using the "inherit image" line.
-                            </para></listitem>
-                        <listitem><para>
-                            Due to the way the OpenEmbedded build system
-                            processes this variable, you cannot update its
-                            contents by using <filename>_append</filename> or
-                            <filename>_prepend</filename>.
-                            You must use the <filename>+=</filename>
-                            operator to add one or more options to the
-                            <filename>IMAGE_FSTYPES</filename> variable.
-                            </para></listitem>
-                    </itemizedlist>
-                </note>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_INSTALL'><glossterm>IMAGE_INSTALL</glossterm>
-            <info>
-                IMAGE_INSTALL[doc] = "Used by recipes to specify the packages to install into an image through image.bbclass."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Used by recipes to specify the packages to install into an
-                    image through the
-                    <link linkend='ref-classes-image'><filename>image</filename></link>
-                    class.
-                    Use the <filename>IMAGE_INSTALL</filename> variable with
-                    care to avoid ordering issues.
-                </para>
-
-                <para>
-                    Image recipes set <filename>IMAGE_INSTALL</filename>
-                    to specify the packages to install into an image through
-                    <filename>image.bbclass</filename>.
-                    Additionally, "helper" classes such as the
-                    <link linkend='ref-classes-core-image'><filename>core-image</filename></link>
-                    class exist that can take lists used with
-                    <filename><link linkend='var-IMAGE_FEATURES'>IMAGE_FEATURES</link></filename>
-                    and turn them into auto-generated entries in
-                    <filename>IMAGE_INSTALL</filename> in addition to its
-                    default contents.
-                </para>
-
-                <para>
-                    When you use this variable, it is best to use it as follows:
-                    <literallayout class='monospaced'>
-     IMAGE_INSTALL_append = " <replaceable>package-name</replaceable>"
-                    </literallayout>
-                    Be sure to include the space between the quotation character
-                    and the start of the package name or names.
-                    <note><title>Caution</title>
-                        <itemizedlist>
-                            <listitem><para>
-                                When working with a
-                                <link linkend='images-core-image-minimal-initramfs'><filename>core-image-minimal-initramfs</filename></link>
-                                image, do not use the
-                                <filename>IMAGE_INSTALL</filename> variable to
-                                specify packages for installation.
-                                Instead, use the
-                                <link linkend='var-PACKAGE_INSTALL'><filename>PACKAGE_INSTALL</filename></link>
-                                variable, which allows the initial RAM
-                                filesystem (initramfs) recipe to use a fixed
-                                set of packages and not be affected by
-                                <filename>IMAGE_INSTALL</filename>.
-                                For information on creating an initramfs, see
-                                the
-                                "<ulink url='&YOCTO_DOCS_DEV_URL;#building-an-initramfs-image'>Building an Initial RAM Filesystem (initramfs) Image</ulink>"
-                                section in the Yocto Project Development Tasks
-                                Manual.
-                                </para></listitem>
-                            <listitem><para>
-                                Using <filename>IMAGE_INSTALL</filename> with
-                                the
-                                <ulink url='&YOCTO_DOCS_BB_URL;#appending-and-prepending'><filename>+=</filename></ulink>
-                                BitBake operator within the
-                                <filename>/conf/local.conf</filename> file or
-                                from within an image recipe is not recommended.
-                                Use of this operator in these ways can cause
-                                ordering issues.
-                                Since <filename>core-image.bbclass</filename>
-                                sets <filename>IMAGE_INSTALL</filename> to a
-                                default value using the
-                                <ulink url='&YOCTO_DOCS_BB_URL;#setting-a-default-value'><filename>?=</filename></ulink>
-                                operator, using a <filename>+=</filename>
-                                operation against
-                                <filename>IMAGE_INSTALL</filename> results in
-                                unexpected behavior when used within
-                                <filename>conf/local.conf</filename>.
-                                Furthermore, the same operation from within
-                                an image recipe may or may not succeed
-                                depending on the specific situation.
-                                In both these cases, the behavior is contrary
-                                to how most users expect the
-                                <filename>+=</filename> operator to work.
-                                </para></listitem>
-                        </itemizedlist>
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_LINGUAS'><glossterm>IMAGE_LINGUAS</glossterm>
-            <info>
-                IMAGE_LINGUAS[doc] = "Specifies the list of locales to install into the image during the root filesystem construction process."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the list of locales to install into the image
-                    during the root filesystem construction process.
-                    The OpenEmbedded build system automatically splits locale
-                    files, which are used for localization, into separate
-                    packages.
-                    Setting the <filename>IMAGE_LINGUAS</filename> variable
-                    ensures that any locale packages that correspond to packages
-                    already selected for installation into the image are also
-                    installed.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     IMAGE_LINGUAS = "pt-br de-de"
-                    </literallayout>
-                </para>
-
-                <para>
-                    In this example, the build system ensures any Brazilian
-                    Portuguese and German locale files that correspond to
-                    packages in the image are installed (i.e.
-                    <filename>*-locale-pt-br</filename>
-                    and <filename>*-locale-de-de</filename> as well as
-                    <filename>*-locale-pt</filename>
-                    and <filename>*-locale-de</filename>, since some software
-                    packages only provide locale files by language and not by
-                    country-specific language).
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='var-GLIBC_GENERATE_LOCALES'><filename>GLIBC_GENERATE_LOCALES</filename></link>
-                    variable for information on generating GLIBC locales.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_MANIFEST'><glossterm>IMAGE_MANIFEST</glossterm>
-            <info>
-                IMAGE_MANIFEST[doc] = "The manifest file for the image. This file lists all the installed packages that make up the image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The manifest file for the image.
-                    This file lists all the installed packages that make up
-                    the image.
-                    The file contains package information on a line-per-package
-                    basis as follows:
-                    <literallayout class='monospaced'>
-     <replaceable>packagename</replaceable> <replaceable>packagearch</replaceable> <replaceable>version</replaceable>
-                    </literallayout>
-                </para>
-
-                <para>
-                    The
-                    <link linkend='ref-classes-image'><filename>image</filename></link>
-                    class defines the manifest file as follows:
-                    <literallayout class='monospaced'>
-     IMAGE_MANIFEST = "${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.manifest"
-                    </literallayout>
-                    The location is derived using the
-                    <link linkend='var-DEPLOY_DIR_IMAGE'><filename>DEPLOY_DIR_IMAGE</filename></link>
-                    and
-                    <link linkend='var-IMAGE_NAME'><filename>IMAGE_NAME</filename></link>
-                    variables.
-                    You can find information on how the image
-                    is created in the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#image-generation-dev-environment'>Image Generation</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_NAME'><glossterm>IMAGE_NAME</glossterm>
-            <info>
-                IMAGE_NAME[doc] = "The name of the output image files minus the extension."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The name of the output image files minus the extension.
-                    This variable is derived using the
-                    <link linkend='var-IMAGE_BASENAME'><filename>IMAGE_BASENAME</filename></link>,
-                    <link linkend='var-MACHINE'><filename>MACHINE</filename></link>,
-                    and
-                    <link linkend='var-DATETIME'><filename>DATETIME</filename></link>
-                    variables:
-                    <literallayout class='monospaced'>
-     IMAGE_NAME = "${IMAGE_BASENAME}-${MACHINE}-${DATETIME}"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_OVERHEAD_FACTOR'><glossterm>IMAGE_OVERHEAD_FACTOR</glossterm>
-            <info>
-                IMAGE_OVERHEAD_FACTOR[doc] = "Defines a multiplier that the build system applies to the initial image size for cases when the multiplier times the returned disk usage value for the image is greater than the sum of IMAGE_ROOTFS_SIZE and IMAGE_ROOTFS_EXTRA_SPACE."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines a multiplier that the build system applies to the initial image
-                    size for cases when the multiplier times the returned disk usage value
-                    for the image is greater than the sum of
-                    <filename><link linkend='var-IMAGE_ROOTFS_SIZE'>IMAGE_ROOTFS_SIZE</link></filename>
-                    and
-                    <filename><link linkend='var-IMAGE_ROOTFS_EXTRA_SPACE'>IMAGE_ROOTFS_EXTRA_SPACE</link></filename>.
-                    The result of the multiplier applied to the initial image size creates
-                    free disk space in the image as overhead.
-                    By default, the build process uses a multiplier of 1.3 for this variable.
-                    This default value results in 30% free disk space added to the image when this
-                    method is used to determine the final generated image size.
-                    You should be aware that post install scripts and the package management
-                    system uses disk space inside this overhead area.
-                    Consequently, the multiplier does not produce an image with
-                    all the theoretical free disk space.
-                    See <filename><link linkend='var-IMAGE_ROOTFS_SIZE'>IMAGE_ROOTFS_SIZE</link></filename>
-                    for information on how the build system determines the overall image size.
-                </para>
-
-                <para>
-                    The default 30% free disk space typically gives the image enough room to boot
-                    and allows for basic post installs while still leaving a small amount of
-                    free disk space.
-                    If 30% free space is inadequate, you can increase the default value.
-                    For example, the following setting gives you 50% free space added to the image:
-                    <literallayout class='monospaced'>
-     IMAGE_OVERHEAD_FACTOR = "1.5"
-                    </literallayout>
-                </para>
-
-                <para>
-                    Alternatively, you can ensure a specific amount of free disk space is added
-                    to the image by using the
-                    <filename><link linkend='var-IMAGE_ROOTFS_EXTRA_SPACE'>IMAGE_ROOTFS_EXTRA_SPACE</link></filename>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_PKGTYPE'><glossterm>IMAGE_PKGTYPE</glossterm>
-            <info>
-                IMAGE_PKGTYPE[doc] = "Defines the package type (i.e. DEB, RPM, IPK, or TAR) used by the OpenEmbedded build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines the package type (i.e. DEB, RPM, IPK, or TAR) used
-                    by the OpenEmbedded build system.
-                    The variable is defined appropriately by the
-                    <link linkend='ref-classes-package_deb'><filename>package_deb</filename></link>,
-                    <link linkend='ref-classes-package_rpm'><filename>package_rpm</filename></link>,
-                    <link linkend='ref-classes-package_ipk'><filename>package_ipk</filename></link>,
-                    or
-                    <link linkend='ref-classes-package_tar'><filename>package_tar</filename></link>
-                    class.
-                    <note><title>Warning</title>
-                        The <filename>package_tar</filename> class is broken
-                        and is not supported.
-                        It is recommended that you do not use it.
-                    </note>
-                </para>
-
-                <para>
-                    The
-                    <link linkend='ref-classes-populate-sdk-*'><filename>populate_sdk_*</filename></link>
-                    and
-                    <link linkend='ref-classes-image'><filename>image</filename></link>
-                    classes use the <filename>IMAGE_PKGTYPE</filename> for
-                    packaging up images and SDKs.
-                </para>
-
-                <para>
-                    You should not set the <filename>IMAGE_PKGTYPE</filename>
-                    manually.
-                    Rather, the variable is set indirectly through the
-                    appropriate
-                    <link linkend='ref-classes-package'><filename>package_*</filename></link>
-                    class using the
-                    <link linkend='var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></link>
-                    variable.
-                    The OpenEmbedded build system uses the first package type
-                    (e.g. DEB, RPM, or IPK) that appears with the variable
-                    <note>
-                        Files using the <filename>.tar</filename> format are
-                        never used as a substitute packaging format for DEB,
-                        RPM, and IPK formatted files for your image or SDK.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_POSTPROCESS_COMMAND'><glossterm>IMAGE_POSTPROCESS_COMMAND</glossterm>
-            <info>
-                IMAGE_POSTPROCESS_COMMAND[doc] = "Specifies a list of functions to call once the OpenEmbedded build system creates the final image output files."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of functions to call once the
-                    OpenEmbedded build system creates the final image
-                    output files.
-                    You can specify functions separated by semicolons:
-                    <literallayout class='monospaced'>
-     IMAGE_POSTPROCESS_COMMAND += "<replaceable>function</replaceable>; ... "
-                    </literallayout>
-                </para>
-
-                <para>
-                    If you need to pass the root filesystem path to a command
-                    within the function, you can use
-                    <filename>${IMAGE_ROOTFS}</filename>, which points to
-                    the directory that becomes the root filesystem image.
-                    See the
-                    <link linkend='var-IMAGE_ROOTFS'><filename>IMAGE_ROOTFS</filename></link>
-                    variable for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_PREPROCESS_COMMAND'><glossterm>IMAGE_PREPROCESS_COMMAND</glossterm>
-            <info>
-                IMAGE_PREPROCESS_COMMAND[doc] = "Specifies a list of functions to call before the OpenEmbedded build system creates the final image output files."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of functions to call before the
-                    OpenEmbedded build system creates the final image
-                    output files.
-                    You can specify functions separated by semicolons:
-                    <literallayout class='monospaced'>
-     IMAGE_PREPROCESS_COMMAND += "<replaceable>function</replaceable>; ... "
-                    </literallayout>
-                </para>
-
-                <para>
-                    If you need to pass the root filesystem path to a command
-                    within the function, you can use
-                    <filename>${IMAGE_ROOTFS}</filename>, which points to
-                    the directory that becomes the root filesystem image.
-                    See the
-                    <link linkend='var-IMAGE_ROOTFS'><filename>IMAGE_ROOTFS</filename></link>
-                    variable for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_ROOTFS'><glossterm>IMAGE_ROOTFS</glossterm>
-            <info>
-                IMAGE_ROOTFS[doc] = "The location of the root filesystem while it is under construction (i.e. during do_rootfs)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The location of the root filesystem while it is under
-                    construction (i.e. during the
-                    <link linkend='ref-tasks-rootfs'><filename>do_rootfs</filename></link>
-                    task).
-                    This variable is not configurable.
-                    Do not change it.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_ROOTFS_ALIGNMENT'><glossterm>IMAGE_ROOTFS_ALIGNMENT</glossterm>
-            <info>
-                IMAGE_ROOTFS_ALIGNMENT[doc] = "Specifies the alignment for the output image file in Kbytes."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the alignment for the output image file in
-                    Kbytes.
-                    If the size of the image is not a multiple of
-                    this value, then the size is rounded up to the nearest
-                    multiple of the value.
-                    The default value is "1".
-                    See
-                    <link linkend='var-IMAGE_ROOTFS_SIZE'><filename>IMAGE_ROOTFS_SIZE</filename></link>
-                    for additional information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_ROOTFS_EXTRA_SPACE'><glossterm>IMAGE_ROOTFS_EXTRA_SPACE</glossterm>
-            <info>
-                IMAGE_ROOTFS_EXTRA_SPACE[doc] = "Defines additional free disk space created in the image in Kbytes. By default, this variable is set to '0'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines additional free disk space created in the image in Kbytes.
-                    By default, this variable is set to "0".
-                    This free disk space is added to the image after the build system determines
-                    the image size as described in
-                    <filename><link linkend='var-IMAGE_ROOTFS_SIZE'>IMAGE_ROOTFS_SIZE</link></filename>.
-                </para>
-
-                <para>
-                    This variable is particularly useful when you want to ensure that a
-                    specific amount of free disk space is available on a device after an image
-                    is installed and running.
-                    For example, to be sure 5 Gbytes of free disk space is available, set the
-                    variable as follows:
-                    <literallayout class='monospaced'>
-     IMAGE_ROOTFS_EXTRA_SPACE = "5242880"
-                    </literallayout>
-                </para>
-
-                <para>
-                    For example, the Yocto Project Build Appliance specifically requests 40 Gbytes
-                    of extra space with the line:
-                    <literallayout class='monospaced'>
-     IMAGE_ROOTFS_EXTRA_SPACE = "41943040"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_ROOTFS_SIZE'><glossterm>IMAGE_ROOTFS_SIZE</glossterm>
-            <info>
-                IMAGE_ROOTFS_SIZE[doc] = "Defines the size in Kbytes for the generated image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines the size in Kbytes for the generated image.
-                    The OpenEmbedded build system determines the final size for the generated
-                    image using an algorithm that takes into account the initial disk space used
-                    for the generated image, a requested size for the image, and requested
-                    additional free disk space to be added to the image.
-                    Programatically, the build system determines the final size of the
-                    generated image as follows:
-                    <literallayout class='monospaced'>
-    if (image-du * overhead) &lt; rootfs-size:
-	internal-rootfs-size = rootfs-size + xspace
-    else:
-	internal-rootfs-size = (image-du * overhead) + xspace
-
-    where:
-
-      image-du = Returned value of the du command on
-                 the image.
-
-      overhead = IMAGE_OVERHEAD_FACTOR
-
-      rootfs-size = IMAGE_ROOTFS_SIZE
-
-      internal-rootfs-size = Initial root filesystem
-                             size before any modifications.
-
-      xspace = IMAGE_ROOTFS_EXTRA_SPACE
-                    </literallayout>
-                </para>
-
-                <para>
-                    See the <link linkend='var-IMAGE_OVERHEAD_FACTOR'><filename>IMAGE_OVERHEAD_FACTOR</filename></link>
-                    and <link linkend='var-IMAGE_ROOTFS_EXTRA_SPACE'><filename>IMAGE_ROOTFS_EXTRA_SPACE</filename></link>
-                    variables for related information.
-<!--                    In the above example, <filename>overhead</filename> is defined by the
-                    <filename><link linkend='var-IMAGE_OVERHEAD_FACTOR'>IMAGE_OVERHEAD_FACTOR</link></filename>
-                    variable, <filename>xspace</filename> is defined by the
-                    <filename><link linkend='var-IMAGE_ROOTFS_EXTRA_SPACE'>IMAGE_ROOTFS_EXTRA_SPACE</link></filename>
-                    variable, and <filename>du</filename> is the results of the disk usage command
-                    on the initially generated image. -->
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_TYPEDEP'><glossterm>IMAGE_TYPEDEP</glossterm>
-            <info>
-                IMAGE_TYPEDEP[doc] = "Specifies a dependency from one image type on another."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a dependency from one image type on another.
-                    Here is an example from the
-                    <link linkend='ref-classes-image-live'><filename>image-live</filename></link>
-                    class:
-                    <literallayout class='monospaced'>
-     IMAGE_TYPEDEP_live = "ext3"
-                    </literallayout>
-                </para>
-
-                <para>
-                    In the previous example, the variable ensures that when
-                    "live" is listed with the
-                    <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>
-                    variable, the OpenEmbedded build system produces an
-                    <filename>ext3</filename> image first since one of the
-                    components of the live
-                    image is an <filename>ext3</filename>
-                    formatted partition containing the root
-                    filesystem.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IMAGE_TYPES'><glossterm>IMAGE_TYPES</glossterm>
-            <info>
-                IMAGE_TYPES[doc] = "Specifies the complete list of supported image types by default."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the complete list of supported image types
-                    by default:
-                    <literallayout class='monospaced'>
-     btrfs
-     container
-     cpio
-     cpio.gz
-     cpio.lz4
-     cpio.lzma
-     cpio.xz
-     cramfs
-     ext2
-     ext2.bz2
-     ext2.gz
-     ext2.lzma
-     ext3
-     ext3.gz
-     ext4
-     ext4.gz
-     f2fs
-     hddimg
-     iso
-     jffs2
-     jffs2.sum
-     multiubi
-     squashfs
-     squashfs-lz4
-     squashfs-lzo
-     squashfs-xz
-     tar
-     tar.bz2
-     tar.gz
-     tar.lz4
-     tar.xz
-     tar.zst
-     ubi
-     ubifs
-     wic
-     wic.bz2
-     wic.gz
-     wic.lzma
-                    </literallayout>
-                </para>
-
-                <para>
-                    For more information about these types of images, see
-                    <filename>meta/classes/image_types*.bbclass</filename>
-                    in the
-                    <link linkend='source-directory'>Source Directory</link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INC_PR'><glossterm>INC_PR</glossterm>
-            <info>
-                INC_PR[doc] = "Helps define the recipe revision for recipes that share a common include file."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Helps define the recipe revision for recipes that share
-                    a common <filename>include</filename> file.
-                    You can think of this variable as part of the recipe revision
-                    as set from within an include file.
-                </para>
-
-                <para>
-                    Suppose, for example, you have a set of recipes that
-                    are used across several projects.
-                    And, within each of those recipes the revision
-                    (its <link linkend='var-PR'><filename>PR</filename></link>
-                    value) is set accordingly.
-                    In this case, when the revision of those recipes changes,
-                    the burden is on you to find all those recipes and
-                    be sure that they get changed to reflect the updated
-                    version of the recipe.
-                    In this scenario, it can get complicated when recipes
-                    that are used in many places and provide common functionality
-                    are upgraded to a new revision.
-                </para>
-
-                <para>
-                    A more efficient way of dealing with this situation is
-                    to set the <filename>INC_PR</filename> variable inside
-                    the <filename>include</filename> files that the recipes
-                    share and then expand the <filename>INC_PR</filename>
-                    variable within the recipes to help
-                    define the recipe revision.
-                </para>
-
-                <para>
-                    The following provides an example that shows how to use
-                    the <filename>INC_PR</filename> variable
-                    given a common <filename>include</filename> file that
-                    defines the variable.
-                    Once the variable is defined in the
-                    <filename>include</filename> file, you can use the
-                    variable to set the <filename>PR</filename> values in
-                    each recipe.
-                    You will notice that when you set a recipe's
-                    <filename>PR</filename> you can provide more granular
-                    revisioning by appending values to the
-                    <filename>INC_PR</filename> variable:
-                    <literallayout class='monospaced'>
-     recipes-graphics/xorg-font/xorg-font-common.inc:INC_PR = "r2"
-     recipes-graphics/xorg-font/encodings_1.0.4.bb:PR = "${INC_PR}.1"
-     recipes-graphics/xorg-font/font-util_1.3.0.bb:PR = "${INC_PR}.0"
-     recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
-                    </literallayout>
-                    The first line of the example establishes the baseline
-                    revision to be used for all recipes that use the
-                    <filename>include</filename> file.
-                    The remaining lines in the example are from individual
-                    recipes and show how the <filename>PR</filename> value
-                    is set.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INCOMPATIBLE_LICENSE'><glossterm>INCOMPATIBLE_LICENSE</glossterm>
-            <info>
-                INCOMPATIBLE_LICENSE[doc] = "Specifies a space-separated list of license names (as they would appear in LICENSE) that should be excluded from the build."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a space-separated list of license names
-                    (as they would appear in
-                    <link linkend='var-LICENSE'><filename>LICENSE</filename></link>)
-                    that should be excluded from the build.
-                    Recipes that provide no alternatives to listed incompatible
-                    licenses are not built.
-                    Packages that are individually licensed with the specified
-                    incompatible licenses will be deleted.
-                </para>
-
-                <note>
-                    This functionality is only regularly tested using
-                    the following setting:
-                    <literallayout class='monospaced'>
-     INCOMPATIBLE_LICENSE = "GPL-3.0 LGPL-3.0 AGPL-3.0"
-                    </literallayout>
-                    Although you can use other settings, you might be required
-                    to remove dependencies on or provide alternatives to
-                    components that are required to produce a functional system
-                    image.
-                </note>
-
-                <note><title>Tips</title>
-                    It is possible to define a list of licenses that are allowed
-                    to be used instead of the licenses that are excluded. To do
-                    this, define a
-                    variable <filename>COMPATIBLE_LICENSES</filename> with the
-                    names of the licences that are allowed. Then
-                    define <filename>INCOMPATIBLE_LICENSE</filename> as:
-                    <literallayout class='monospaced'>
-     INCOMPATIBLE_LICENSE = "${@' '.join(sorted(set(d.getVar('AVAILABLE_LICENSES').split()) - set(d.getVar('COMPATIBLE_LICENSES').split())))}"
-                    </literallayout>
-                    This will result
-                    in <filename>INCOMPATIBLE_LICENSE</filename> containing the
-                    names of all licences
-                    from <link linkend='var-AVAILABLE_LICENSES'><filename>AVAILABLE_LICENSES</filename></link>
-                    except the ones specified
-                    in <filename>COMPATIBLE_LICENSES</filename>, thus only
-                    allowing the latter licences to be used.
-                </note>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INHERIT'><glossterm>INHERIT</glossterm>
-            <info>
-                INHERIT[doc] = "Causes the named class or classes to be inherited globally."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Causes the named class or classes to be inherited globally.
-                    Anonymous functions in the class or classes
-                    are not executed for the
-                    base configuration and in each individual recipe.
-                    The OpenEmbedded build system ignores changes to
-                    <filename>INHERIT</filename> in individual recipes.
-                </para>
-
-                <para>
-                    For more information on <filename>INHERIT</filename>, see
-                    the
-                    "<ulink url="&YOCTO_DOCS_BB_URL;#inherit-configuration-directive"><filename>INHERIT</filename> Configuration Directive</ulink>"
-                    section in the Bitbake User Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INHERIT_DISTRO'><glossterm>INHERIT_DISTRO</glossterm>
-            <info>
-                INHERIT_DISTRO[doc] = "Lists classes that will be inherited at the distribution level. It is unlikely that you want to edit this variable."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists classes that will be inherited at the
-                    distribution level.
-                    It is unlikely that you want to edit this variable.
-                </para>
-
-                <para>
-                    The default value of the variable is set as follows in the
-                    <filename>meta/conf/distro/defaultsetup.conf</filename>
-                    file:
-                    <literallayout class='monospaced'>
-     INHERIT_DISTRO ?= "debian devshell sstate license"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INHIBIT_DEFAULT_DEPS'><glossterm>INHIBIT_DEFAULT_DEPS</glossterm>
-            <info>
-                INHIBIT_DEFAULT_DEPS[doc] = "Prevents the default dependencies, namely the C compiler and standard C library (libc), from being added to DEPENDS."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Prevents the default dependencies, namely the C compiler
-                    and standard C library (libc), from being added to
-                    <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>.
-                    This variable is usually used within recipes that do not
-                    require any compilation using the C compiler.
-                </para>
-
-                <para>
-                    Set the variable to "1" to prevent the default dependencies
-                    from being added.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INHIBIT_PACKAGE_DEBUG_SPLIT'><glossterm>INHIBIT_PACKAGE_DEBUG_SPLIT</glossterm>
-            <info>
-                INHIBIT_PACKAGE_DEBUG_SPLIT[doc] = "If set to "1", prevents the OpenEmbedded build system from splitting out debug information during packaging"
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Prevents the OpenEmbedded build system from splitting
-                    out debug information during packaging.
-                    By default, the build system splits out debugging
-                    information during the
-                    <link linkend='ref-tasks-package'><filename>do_package</filename></link>
-                    task.
-                    For more information on how debug information is split out,
-                    see the
-                    <link linkend='var-PACKAGE_DEBUG_SPLIT_STYLE'><filename>PACKAGE_DEBUG_SPLIT_STYLE</filename></link>
-                    variable.
-                </para>
-
-                <para>
-                    To prevent the build system from splitting out
-                    debug information during packaging, set the
-                    <filename>INHIBIT_PACKAGE_DEBUG_SPLIT</filename> variable
-                    as follows:
-                    <literallayout class='monospaced'>
-     INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INHIBIT_PACKAGE_STRIP'><glossterm>INHIBIT_PACKAGE_STRIP</glossterm>
-            <info>
-                INHIBIT_PACKAGE_STRIP[doc] = "If set to "1", causes the build to not strip binaries in resulting packages."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    If set to "1", causes the build to not strip binaries in
-                    resulting packages and prevents the
-                    <filename>-dbg</filename> package from containing the
-                    source files.
-                </para>
-
-                <para>
-                     By default, the OpenEmbedded build system strips
-                     binaries and puts the debugging symbols into
-                     <filename>${</filename><link linkend='var-PN'><filename>PN</filename></link><filename>}-dbg</filename>.
-                     Consequently, you should not set
-                     <filename>INHIBIT_PACKAGE_STRIP</filename> when you plan
-                     to debug in general.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INHIBIT_SYSROOT_STRIP'><glossterm>INHIBIT_SYSROOT_STRIP</glossterm>
-            <info>
-                INHIBIT_SYSROOT_STRIP[doc] = "If set to "1", causes the build to not strip binaries in the resulting sysroot."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    If set to "1", causes the build to not strip binaries in
-                    the resulting sysroot.
-                </para>
-
-                <para>
-                    By default, the OpenEmbedded build system strips
-                    binaries in the resulting sysroot.
-                    When you specifically set the
-                    <filename>INHIBIT_SYSROOT_STRIP</filename> variable to
-                    "1" in your recipe, you inhibit this stripping.
-                </para>
-
-                <para>
-                    If you want to use this variable, include the
-                    <link linkend='ref-classes-staging'><filename>staging</filename></link>
-                    class.
-                    This class uses a <filename>sys_strip()</filename>
-                    function to test for the variable and acts accordingly.
-                    <note>
-                        Use of the <filename>INHIBIT_SYSROOT_STRIP</filename>
-                        variable occurs in rare and special circumstances.
-                        For example, suppose you are building bare-metal
-                        firmware by using an external GCC toolchain.
-                        Furthermore, even if the toolchain's binaries are
-                        strippable, other files exist that are needed for the
-                        build that are not strippable.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INITRAMFS_FSTYPES'><glossterm>INITRAMFS_FSTYPES</glossterm>
-            <info>
-                INITRAMFS_FSTYPES[doc] = "Defines the format for the output image of an initial RAM filesystem (initramfs), which is used during boot."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines the format for the output image of an initial
-                    RAM filesystem (initramfs), which is used during boot.
-                    Supported formats are the same as those supported by the
-                    <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>
-                    variable.
-                </para>
-
-                <para>
-                    The default value of this variable, which is set in the
-                    <filename>meta/conf/bitbake.conf</filename> configuration
-                    file in the
-                    <link linkend='source-directory'>Source Directory</link>,
-                    is "cpio.gz".
-                    The Linux kernel's initramfs mechanism, as opposed to the
-                    initial RAM filesystem
-                    <ulink url='https://en.wikipedia.org/wiki/Initrd'>initrd</ulink>
-                    mechanism, expects an optionally compressed cpio
-                    archive.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INITRAMFS_IMAGE'><glossterm>INITRAMFS_IMAGE</glossterm>
-            <info>
-                INITRAMFS_IMAGE[doc] = "Specifies the PROVIDES name of an image recipe that is used to build an initial RAM filesystem (initramfs) image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the
-                    <link linkend='var-PROVIDES'><filename>PROVIDES</filename></link>
-                    name of an image recipe that is used to build an initial
-                    RAM filesystem (initramfs) image.
-                    In other words, the <filename>INITRAMFS_IMAGE</filename>
-                    variable causes an additional recipe to be built as
-                    a dependency to whatever root filesystem recipe you
-                    might be using (e.g. <filename>core-image-sato</filename>).
-                    The initramfs image recipe you provide should set
-                    <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>
-                    to
-                    <link linkend='var-INITRAMFS_FSTYPES'><filename>INITRAMFS_FSTYPES</filename></link>.
-                </para>
-
-                <para>
-                    An initramfs image provides a temporary root filesystem
-                    used for early system initialization (e.g. loading of
-                    modules needed to locate and mount the "real" root
-                    filesystem).
-                    <note>
-                        See the <filename>meta/recipes-core/images/core-image-minimal-initramfs.bb</filename>
-                        recipe in the
-                        <link linkend='source-directory'>Source Directory</link>
-                        for an example initramfs recipe.
-                        To select this sample recipe as the one built
-                        to provide the initramfs image,
-                        set <filename>INITRAMFS_IMAGE</filename> to
-                        "core-image-minimal-initramfs".
-                    </note>
-                </para>
-
-                <para>
-                    You can also find more information by referencing the
-                    <filename>meta-poky/conf/local.conf.sample.extended</filename>
-                    configuration file in the Source Directory,
-                    the
-                    <link linkend='ref-classes-image'><filename>image</filename></link>
-                    class, and the
-                    <link linkend='ref-classes-kernel'><filename>kernel</filename></link>
-                    class to see how to use the
-                    <filename>INITRAMFS_IMAGE</filename> variable.
-                </para>
-
-                <para>
-                    If <filename>INITRAMFS_IMAGE</filename> is empty, which is
-                    the default, then no initramfs image is built.
-                </para>
-
-                <para>
-                    For more information, you can also see the
-                    <link linkend='var-INITRAMFS_IMAGE_BUNDLE'><filename>INITRAMFS_IMAGE_BUNDLE</filename></link>
-                    variable, which allows the generated image to be bundled
-                    inside the kernel image.
-                    Additionally, for information on creating an initramfs
-                    image, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#building-an-initramfs-image'>Building an Initial RAM Filesystem (initramfs) Image</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INITRAMFS_IMAGE_BUNDLE'><glossterm>INITRAMFS_IMAGE_BUNDLE</glossterm>
-            <info>
-                INITRAMFS_IMAGE_BUNDLE[doc] = "Controls whether or not the image recipe specified by INITRAMFS_IMAGE is run through an extra pass (do_bundle_initramfs) during kernel compilation in order to build a single binary that contains both the kernel image and the initial RAM filesystem (initramfs)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Controls whether or not the image recipe specified by
-                    <link linkend='var-INITRAMFS_IMAGE'><filename>INITRAMFS_IMAGE</filename></link>
-                    is run through an extra pass
-                    (<link linkend='ref-tasks-bundle_initramfs'><filename>do_bundle_initramfs</filename></link>)
-                    during kernel compilation in order to build a single binary
-                    that contains both the kernel image and the initial RAM
-                    filesystem (initramfs) image.
-                    This makes use of the
-                    <link linkend='var-CONFIG_INITRAMFS_SOURCE'><filename>CONFIG_INITRAMFS_SOURCE</filename></link>
-                    kernel feature.
-                    <note>
-                        Using an extra compilation pass to bundle the initramfs
-                        avoids a circular dependency between the kernel recipe and
-                        the initramfs recipe should the initramfs include kernel
-                        modules.
-                        Should that be the case, the initramfs recipe depends on
-                        the kernel for the kernel modules, and the kernel depends
-                        on the initramfs recipe since the initramfs is bundled
-                        inside the kernel image.
-                    </note>
-                </para>
-
-                <para>
-                    The combined binary is deposited into the
-                    <filename>tmp/deploy</filename> directory, which is part
-                    of the
-                    <link linkend='build-directory'>Build Directory</link>.
-                </para>
-
-                <para>
-                    Setting the variable to "1" in a configuration file causes the
-                    OpenEmbedded build system to generate a kernel image with the
-                    initramfs specified in <filename>INITRAMFS_IMAGE</filename>
-                    bundled within:
-                    <literallayout class='monospaced'>
-     INITRAMFS_IMAGE_BUNDLE = "1"
-                    </literallayout>
-                    By default, the
-                    <link linkend='ref-classes-kernel'><filename>kernel</filename></link>
-                    class sets this variable to a null string as follows:
-                    <literallayout class='monospaced'>
-     INITRAMFS_IMAGE_BUNDLE ?= ""
-                    </literallayout>
-                    <note>
-                        You must set the
-                        <filename>INITRAMFS_IMAGE_BUNDLE</filename> variable in
-                        a configuration file.
-                        You cannot set the variable in a recipe file.
-                    </note>
-                    See the
-                    <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta-poky/conf/local.conf.sample.extended'><filename>local.conf.sample.extended</filename></ulink>
-                    file for additional information.
-                    Also, for information on creating an initramfs, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#building-an-initramfs-image'>Building an Initial RAM Filesystem (initramfs) Image</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INITRAMFS_LINK_NAME'><glossterm>INITRAMFS_LINK_NAME</glossterm>
-            <info>
-                INITRAMFS_LINK_NAME[doc] = "The link name of the initial RAM filesystem image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The link name of the initial RAM filesystem image.
-                    This variable is set in the
-                    <filename>meta/classes/kernel-artifact-names.bbclass</filename>
-                    file as follows:
-                    <literallayout class='monospaced'>
-     INITRAMFS_LINK_NAME ?= "initramfs-${KERNEL_ARTIFACT_LINK_NAME}"
-                    </literallayout>
-                    The value of the <filename>KERNEL_ARTIFACT_LINK_NAME</filename>
-                    variable, which is set in the same file, has the following
-                    value:
-                    <literallayout class='monospaced'>
-     KERNEL_ARTIFACT_LINK_NAME ?= "${MACHINE}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='var-MACHINE'><filename>MACHINE</filename></link>
-                    variable for additional information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INITRAMFS_NAME'><glossterm>INITRAMFS_NAME</glossterm>
-            <info>
-                INITRAMFS_NAME[doc] = "The base name of the initial RAM filesystem image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The base name of the initial RAM filesystem image.
-                    This variable is set in the
-                    <filename>meta/classes/kernel-artifact-names.bbclass</filename>
-                    file as follows:
-                    <literallayout class='monospaced'>
-     INITRAMFS_NAME ?= "initramfs-${KERNEL_ARTIFACT_NAME}"
-                    </literallayout>
-                    The value of the
-                    <link linkend='var-KERNEL_ARTIFACT_NAME'><filename>KERNEL_ARTIFACT_NAME</filename></link>
-                    variable, which is set in the same file, has the following
-                    value:
-                    <literallayout class='monospaced'>
-     KERNEL_ARTIFACT_NAME ?= "${PKGE}-${PKGV}-${PKGR}-${MACHINE}${IMAGE_VERSION_SUFFIX}"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INITRD'><glossterm>INITRD</glossterm>
-            <info>
-                INITRD[doc] = "Indicates a list of filesystem images to concatenate and use as an initial RAM disk (initrd)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Indicates list of filesystem images to concatenate and use
-                    as an initial RAM disk (<filename>initrd</filename>).
-                </para>
-
-                <para>
-                    The <filename>INITRD</filename> variable is an optional
-                    variable used with the
-                    <link linkend='ref-classes-image-live'><filename>image-live</filename></link>
-                    class.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INITRD_IMAGE'><glossterm>INITRD_IMAGE</glossterm>
-            <info>
-                INITRD_IMAGE[doc] = "When building a "live" bootable image (i.e. when IMAGE_FSTYPES contains "live"), INITRD_IMAGE specifies the image recipe that should be built to provide the initial RAM disk image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When building a "live" bootable image (i.e. when
-                    <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>
-                    contains "live"), <filename>INITRD_IMAGE</filename>
-                    specifies the image recipe that should be built
-                    to provide the initial RAM disk image.
-                    The default value is "core-image-minimal-initramfs".
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='ref-classes-image-live'><filename>image-live</filename></link>
-                    class for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INITSCRIPT_NAME'><glossterm>INITSCRIPT_NAME</glossterm>
-            <info>
-                INITSCRIPT_NAME[doc] = "The filename of the initialization script as installed to ${sysconfdir}/init.d."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The filename of the initialization script as installed to
-                    <filename>${sysconfdir}/init.d</filename>.
-                </para>
-
-                <para>
-                    This variable is used in recipes when using <filename>update-rc.d.bbclass</filename>.
-                    The variable is mandatory.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INITSCRIPT_PACKAGES'><glossterm>INITSCRIPT_PACKAGES</glossterm>
-            <info>
-                INITSCRIPT_PACKAGES[doc] = "A list of the packages that contain initscripts. This variable is used in recipes when using update-rc.d.bbclass. The variable is optional and defaults to the PN variable."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of the packages that contain initscripts.
-                    If multiple packages are specified, you need to append the package name
-                    to the other <filename>INITSCRIPT_*</filename> as an override.
-                 </para>
-
-                 <para>
-                    This variable is used in recipes when using <filename>update-rc.d.bbclass</filename>.
-                    The variable is optional and defaults to the
-                    <link linkend='var-PN'><filename>PN</filename></link> variable.
-                </para>
-           </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INITSCRIPT_PARAMS'><glossterm>INITSCRIPT_PARAMS</glossterm>
-            <info>
-                INITSCRIPT_PARAMS[doc] = "Specifies the options to pass to update-rc.d. The variable is mandatory and is used in recipes when using update-rc.d.bbclass."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the options to pass to <filename>update-rc.d</filename>.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     INITSCRIPT_PARAMS = "start 99 5 2 . stop 20 0 1 6 ."
-                    </literallayout>
-                </para>
-
-                <para>
-                    In this example, the script has a runlevel of 99,
-                    starts the script in initlevels 2 and 5, and
-                    stops the script in levels 0, 1 and 6.
-                </para>
-
-                <para>
-                    The variable's default value is "defaults", which is
-                    set in the
-                    <link linkend='ref-classes-update-rc.d'><filename>update-rc.d</filename></link>
-                    class.
-                </para>
-
-                <para>
-                    The value in
-                    <filename>INITSCRIPT_PARAMS</filename> is passed through
-                    to the <filename>update-rc.d</filename> command.
-                    For more information on valid parameters, please see the
-                    <filename>update-rc.d</filename> manual page at
-                    <ulink url='http://www.tin.org/bin/man.cgi?section=8&amp;topic=update-rc.d'></ulink>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INSANE_SKIP'><glossterm>INSANE_SKIP</glossterm>
-            <info>
-                INSANE_SKIP[doc] = "Specifies the QA checks to skip for a specific package within a recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the QA checks to skip for a specific package
-                    within a recipe.
-                    For example, to skip the check for symbolic link
-                    <filename>.so</filename> files in the main package of a
-                    recipe, add the following to the recipe.
-                    The package name override must be used, which in this
-                    example is <filename>${PN}</filename>:
-                    <literallayout class='monospaced'>
-     INSANE_SKIP_${PN} += "dev-so"
-                    </literallayout>
-                </para>
-
-                <para>
-                    See the "<link linkend='ref-classes-insane'><filename>insane.bbclass</filename></link>"
-                    section for a list of the valid QA checks you can
-                    specify using this variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-INSTALL_TIMEZONE_FILE'><glossterm>INSTALL_TIMEZONE_FILE</glossterm>
-            <info>
-                INSTALL_TIMEZONE_FILE[doc] = "Enables installation of the /etc/timezone file."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    By default, the <filename>tzdata</filename> recipe packages
-                    an <filename>/etc/timezone</filename> file.
-                    Set the <filename>INSTALL_TIMEZONE_FILE</filename>
-                    variable to "0" at the configuration level to disable this
-                    behavior.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-IPK_FEED_URIS'><glossterm>IPK_FEED_URIS</glossterm>
-            <info>
-                IPK_FEED_URIS[doc] = "List of ipkg feed records to put into generated image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When the IPK backend is in use and package management
-                    is enabled on the target, you can use this variable to
-                    set up <filename>opkg</filename> in the target image
-                    to point to package feeds on a nominated server.
-                    Once the feed is established, you can perform
-                    installations or upgrades using the package manager
-                    at runtime.
-                </para>
-            </glossdef>
-        </glossentry>
-
-<!--
-        <glossentry id='var-INTERCEPT_DIR'><glossterm>INTERCEPT_DIR</glossterm>
-            <glossdef>
-                <para>
-                    An environment variable that defines the directory where
-                    post installation hooks are installed for the
-                    post install environment.
-                    This variable is fixed as follows:
-                    <literallayout class='monospaced'>
-     ${WORKDIR}/intercept_scripts
-                    </literallayout>
-                </para>
-
-                <para>
-                    After installation of a target's root filesystem,
-                    post installation scripts, which are essentially bash scripts,
-                    are all executed just a single time.
-                    Limiting execution of these scripts minimizes installation
-                    time that would be lengthened due to  certain packages
-                    triggering redundant operations.
-                    For example, consider the installation of font packages
-                    as a common example.
-                    Without limiting the execution of post installation scripts,
-                    all font directories would be rescanned to create the
-                    cache after each individual font package was installed.
-                </para>
-
-                <para>
-                    Do not edit the <filename>INTERCEPT_DIR</filename>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
--->
-
-    </glossdiv>
-
-<!--            <glossdiv id='var-glossary-j'><title>J</title>-->
-<!--            </glossdiv>-->
-
-   <glossdiv id='var-glossary-k'><title>K</title>
-
-        <glossentry id='var-KARCH'><glossterm>KARCH</glossterm>
-            <info>
-                KARCH[doc] = "Defines the kernel architecture used when assembling the configuration. You define the KARCH variable in the BSP Descriptions."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines the kernel architecture used when assembling
-                    the configuration.
-                    Architectures supported for this release are:
-                    <literallayout class='monospaced'>
-     powerpc
-     i386
-     x86_64
-     arm
-     qemu
-     mips
-                    </literallayout>
-                </para>
-
-                <para>
-                    You define the <filename>KARCH</filename> variable in the
-                    <ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#bsp-descriptions'>BSP Descriptions</ulink>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KBRANCH'><glossterm>KBRANCH</glossterm>
-            <info>
-                KBRANCH[doc] = "A regular expression used by the build process to explicitly identify the kernel branch that is validated, patched, and configured during a build."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A regular expression used by the build process to explicitly
-                    identify the kernel branch that is validated, patched,
-                    and configured during a build.
-                    You must set this variable to ensure the exact kernel
-                    branch you want is being used by the build process.
-                </para>
-
-                <para>
-                    Values for this variable are set in the kernel's recipe
-                    file and the kernel's append file.
-                    For example, if you are using the
-                    <filename>linux-yocto_4.12</filename> kernel, the kernel
-                    recipe file is the
-                    <filename>meta/recipes-kernel/linux/linux-yocto_4.12.bb</filename>
-                    file.
-                    <filename>KBRANCH</filename> is set as follows in that
-                    kernel recipe file:
-                    <literallayout class='monospaced'>
-     KBRANCH ?= "standard/base"
-                    </literallayout>
-                </para>
-
-                <para>
-                    This variable is also used from the kernel's append file
-                    to identify the kernel branch specific to a particular
-                    machine or target hardware.
-                    Continuing with the previous kernel example, the kernel's
-                    append file (i.e.
-                    <filename>linux-yocto_4.12.bbappend</filename>) is located
-                    in the BSP layer for a given machine.
-                    For example, the append file for the Beaglebone,
-                    EdgeRouter, and generic versions of both 32 and 64-bit IA
-                    machines (<filename>meta-yocto-bsp</filename>) is named
-                    <filename>meta-yocto-bsp/recipes-kernel/linux/linux-yocto_4.12.bbappend</filename>.
-                    Here are the related statements from that append file:
-                    <literallayout class='monospaced'>
-     KBRANCH_genericx86  = "standard/base"
-     KBRANCH_genericx86-64  = "standard/base"
-     KBRANCH_edgerouter = "standard/edgerouter"
-     KBRANCH_beaglebone = "standard/beaglebone"
-                    </literallayout>
-                        The <filename>KBRANCH</filename> statements identify
-                        the kernel branch to use when building for each
-                        supported BSP.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KBUILD_DEFCONFIG'><glossterm>KBUILD_DEFCONFIG</glossterm>
-            <info>
-                KBUILD_DEFCONFIG[doc] = "Specifies an "in-tree" kernel configuration file for use during a kernel build."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When used with the
-                    <link linkend='ref-classes-kernel-yocto'><filename>kernel-yocto</filename></link>
-                    class, specifies an "in-tree" kernel configuration file
-                    for use during a kernel build.
-                </para>
-
-                <para>
-                    Typically, when using a <filename>defconfig</filename> to
-                    configure a kernel during a build, you place the
-                    file in your layer in the same manner as you would
-                    place patch files and configuration fragment files (i.e.
-                    "out-of-tree").
-                    However, if you want to use a <filename>defconfig</filename>
-                    file that is part of the kernel tree (i.e. "in-tree"),
-                    you can use the
-                    <filename>KBUILD_DEFCONFIG</filename> variable and append
-                    the
-                    <link linkend='var-KMACHINE'><filename>KMACHINE</filename></link>
-                    variable to point to the <filename>defconfig</filename>
-                    file.
-                </para>
-
-                <para>
-                    To use the variable, set it in the append file for your
-                    kernel recipe using the following form:
-                    <literallayout class='monospaced'>
-     KBUILD_DEFCONFIG_<replaceable>KMACHINE</replaceable> ?= <replaceable>defconfig_file</replaceable>
-                    </literallayout>
-                    Here is an example from a "raspberrypi2"
-                    <filename>KMACHINE</filename> build that uses a
-                    <filename>defconfig</filename> file named
-                    "bcm2709_defconfig":
-                    <literallayout class='monospaced'>
-     KBUILD_DEFCONFIG_raspberrypi2 = "bcm2709_defconfig"
-                    </literallayout>
-                    As an alternative, you can use the following within your
-                    append file:
-                    <literallayout class='monospaced'>
-     KBUILD_DEFCONFIG_pn-linux-yocto ?= <replaceable>defconfig_file</replaceable>
-                    </literallayout>
-                    For more information on how to use the
-                    <filename>KBUILD_DEFCONFIG</filename> variable, see the
-                    "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#using-an-in-tree-defconfig-file'>Using an "In-Tree" <filename>defconfig</filename> File</ulink>"
-                    section in the Yocto Project Linux Kernel Development
-                    Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_ALT_IMAGETYPE'><glossterm>KERNEL_ALT_IMAGETYPE</glossterm>
-            <info>
-                KERNEL_ALT_IMAGETYPE[doc] = "Specifies an alternate kernel image type for creation."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies an alternate kernel image type for creation in
-                    addition to the kernel image type specified using the
-                    <link linkend='var-KERNEL_IMAGETYPE'><filename>KERNEL_IMAGETYPE</filename></link>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_ARTIFACT_NAME'><glossterm>KERNEL_ARTIFACT_NAME</glossterm>
-            <info>
-                KERNEL_ARTIFACT_NAME[doc] = "Specifies the name of all of the build artifacts."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the name of all of the build artifacts.
-                    You can change the name of the artifacts by changing the
-                    <filename>KERNEL_ARTIFACT_NAME</filename> variable.
-                </para>
-
-                <para>
-                    The value of <filename>KERNEL_ARTIFACT_NAME</filename>,
-                    which is set in the
-                    <filename> meta/classes/kernel-artifact-names.bbclass</filename>
-                    file, has the following default value:
-                    <literallayout class='monospaced'>
-     KERNEL_ARTIFACT_NAME ?= "${PKGE}-${PKGV}-${PKGR}-${MACHINE}${IMAGE_VERSION_SUFFIX}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='var-PKGE'><filename>PKGE</filename></link>,
-                    <link linkend='var-PKGV'><filename>PKGV</filename></link>,
-                    <link linkend='var-PKGR'><filename>PKGR</filename></link>,
-                    and
-                    <link linkend='var-MACHINE'><filename>MACHINE</filename></link>
-                    variables for additional information.
-                    <note>
-                        The <filename>IMAGE_VERSION_SUFFIX</filename> variable
-                        is set to
-                        <link linkend='var-DATETIME'><filename>DATETIME</filename></link>.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_CLASSES'><glossterm>KERNEL_CLASSES</glossterm>
-            <info>
-                KERNEL_CLASSES[doc] = "A list of classes defining kernel image types that kernel class should inherit."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of classes defining kernel image types that the
-                    <link linkend='ref-classes-kernel'><filename>kernel</filename></link>
-                    class should inherit.
-                    You typically append this variable to enable extended image
-                    types.
-                    An example is the "kernel-fitimage", which enables
-                    fitImage support and resides in
-                    <filename>meta/classes/kernel-fitimage.bbclass</filename>.
-                    You can register custom kernel image types with the
-                    <filename>kernel</filename> class using this variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_DEVICETREE'><glossterm>KERNEL_DEVICETREE</glossterm>
-            <info>
-                KERNEL_DEVICETREE[doc] = "Specifies the name of the generated Linux kernel device tree (i.e. the .dtb) file."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the name of the generated Linux kernel device tree
-                    (i.e. the <filename>.dtb</filename>) file.
-                    <note>
-                        Legacy support exists for specifying the full path
-                        to the device tree.
-                        However, providing just the <filename>.dtb</filename>
-                        file is preferred.
-                    </note>
-                    In order to use this variable, the
-                    <link linkend='ref-classes-kernel-devicetree'><filename>kernel-devicetree</filename></link>
-                    class must be inherited.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_DTB_LINK_NAME'><glossterm>KERNEL_DTB_LINK_NAME</glossterm>
-            <info>
-                KERNEL_DTB_LINK_NAME[doc] = "The link name of the kernel device tree binary (DTB)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The link name of the kernel device tree binary (DTB).
-                    This variable is set in the
-                    <filename>meta/classes/kernel-artifact-names.bbclass</filename>
-                    file as follows:
-                    <literallayout class='monospaced'>
-     KERNEL_DTB_LINK_NAME ?= "${KERNEL_ARTIFACT_LINK_NAME}"
-                    </literallayout>
-                    The value of the <filename>KERNEL_ARTIFACT_LINK_NAME</filename>
-                    variable, which is set in the same file, has the following
-                    value:
-                    <literallayout class='monospaced'>
-     KERNEL_ARTIFACT_LINK_NAME ?= "${MACHINE}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='var-MACHINE'><filename>MACHINE</filename></link>
-                    variable for additional information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_DTB_NAME'><glossterm>KERNEL_DTB_NAME</glossterm>
-            <info>
-                KERNEL_DTB_NAME[doc] = "The base name of the kernel device tree binary (DTB)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The base name of the kernel device tree binary (DTB).
-                    This variable is set in the
-                    <filename>meta/classes/kernel-artifact-names.bbclass</filename>
-                    file as follows:
-                    <literallayout class='monospaced'>
-     KERNEL_DTB_NAME ?= "${KERNEL_ARTIFACT_NAME}"
-                    </literallayout>
-                    The value of the
-                    <link linkend='var-KERNEL_ARTIFACT_NAME'><filename>KERNEL_ARTIFACT_NAME</filename></link>
-                    variable, which is set in the same file, has the following
-                    value:
-                    <literallayout class='monospaced'>
-     KERNEL_ARTIFACT_NAME ?= "${PKGE}-${PKGV}-${PKGR}-${MACHINE}${IMAGE_VERSION_SUFFIX}"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_EXTRA_ARGS'><glossterm>KERNEL_EXTRA_ARGS</glossterm>
-            <info>
-                KERNEL_EXTRA_ARGS[doc] = "Specifies additional make command-line arguments the OpenEmbedded build system passes on when compiling the kernel."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies additional <filename>make</filename>
-                    command-line arguments the OpenEmbedded build system
-                    passes on when compiling the kernel.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_FEATURES'><glossterm>KERNEL_FEATURES</glossterm>
-            <info>
-                KERNEL_FEATURES[doc] = "Includes additional kernel metadata. The metadata you add through this variable includes config fragments and features descriptions."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Includes additional kernel metadata.
-                    In the OpenEmbedded build system, the default Board Support
-                    Packages (BSPs)
-                    <link linkend='metadata'>Metadata</link>
-                    is provided through
-                    the <link linkend='var-KMACHINE'><filename>KMACHINE</filename></link>
-                    and
-                    <link linkend='var-KBRANCH'><filename>KBRANCH</filename></link>
-                    variables.
-                    You can use the <filename>KERNEL_FEATURES</filename>
-                    variable from within the kernel recipe or kernel append
-                    file to further add metadata for all BSPs or specific
-                    BSPs.
-                </para>
-
-                <para>
-                    The metadata you add through this variable includes config
-                    fragments and features descriptions,
-                    which usually includes patches as well as config fragments.
-                    You typically override the
-                    <filename>KERNEL_FEATURES</filename> variable for a
-                    specific machine.
-                    In this way, you can provide validated, but optional,
-                    sets of kernel configurations and features.
-                </para>
-
-                <para>
-                    For example, the following example from the
-                    <filename>linux-yocto-rt_4.12</filename> kernel recipe
-                    adds "netfilter" and "taskstats" features to all BSPs
-                    as well as "virtio" configurations to all QEMU machines.
-                    The last two statements add specific configurations to
-                    targeted machine types:
-                    <literallayout class='monospaced'>
-     KERNEL_EXTRA_FEATURES ?= "features/netfilter/netfilter.scc features/taskstats/taskstats.scc"
-     KERNEL_FEATURES_append = " ${KERNEL_EXTRA_FEATURES}"
-     KERNEL_FEATURES_append_qemuall = " cfg/virtio.scc"
-     KERNEL_FEATURES_append_qemux86 = " cfg/sound.scc cfg/paravirt_kvm.scc"
-     KERNEL_FEATURES_append_qemux86-64 = " cfg/sound.scc"                    </literallayout></para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_FIT_LINK_NAME'><glossterm>KERNEL_FIT_LINK_NAME</glossterm>
-            <info>
-                KERNEL_FIT_LINK_NAME[doc] = "The link name of the kernel flattened image tree (FIT) image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The link name of the kernel flattened image tree (FIT) image.
-                    This variable is set in the
-                    <filename>meta/classes/kernel-artifact-names.bbclass</filename>
-                    file as follows:
-                    <literallayout class='monospaced'>
-     KERNEL_FIT_LINK_NAME ?= "${KERNEL_ARTIFACT_LINK_NAME}"
-                    </literallayout>
-                    The value of the <filename>KERNEL_ARTIFACT_LINK_NAME</filename>
-                    variable, which is set in the same file, has the following
-                    value:
-                    <literallayout class='monospaced'>
-     KERNEL_ARTIFACT_LINK_NAME ?= "${MACHINE}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='var-MACHINE'><filename>MACHINE</filename></link>
-                    variable for additional information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_FIT_NAME'><glossterm>KERNEL_FIT_NAME</glossterm>
-            <info>
-                KERNEL_FIT_NAME[doc] = "The base name of the kernel flattened image tree (FIT) image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The base name of the kernel flattened image tree (FIT) image.
-                    This variable is set in the
-                    <filename>meta/classes/kernel-artifact-names.bbclass</filename>
-                    file as follows:
-                    <literallayout class='monospaced'>
-     KERNEL_FIT_NAME ?= "${KERNEL_ARTIFACT_NAME}"
-                    </literallayout>
-                    The value of the
-                    <link linkend='var-KERNEL_ARTIFACT_NAME'><filename>KERNEL_ARTIFACT_NAME</filename></link>
-                    variable, which is set in the same file, has the following
-                    value:
-                    <literallayout class='monospaced'>
-     KERNEL_ARTIFACT_NAME ?= "${PKGE}-${PKGV}-${PKGR}-${MACHINE}${IMAGE_VERSION_SUFFIX}"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_IMAGE_LINK_NAME'><glossterm>KERNEL_IMAGE_LINK_NAME</glossterm>
-            <info>
-                KERNEL_IMAGE_LINK_NAME[doc] = "The link name for the kernel image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The link name for the kernel image.
-                    This variable is set in the
-                    <filename>meta/classes/kernel-artifact-names.bbclass</filename>
-                    file as follows:
-                    <literallayout class='monospaced'>
-     KERNEL_IMAGE_LINK_NAME ?= "${KERNEL_ARTIFACT_LINK_NAME}"
-                    </literallayout>
-                    The value of the <filename>KERNEL_ARTIFACT_LINK_NAME</filename>
-                    variable, which is set in the same file, has the following
-                    value:
-                    <literallayout class='monospaced'>
-     KERNEL_ARTIFACT_LINK_NAME ?= "${MACHINE}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='var-MACHINE'><filename>MACHINE</filename></link>
-                    variable for additional information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_IMAGE_MAXSIZE'><glossterm>KERNEL_IMAGE_MAXSIZE</glossterm>
-            <info>
-                KERNEL_IMAGE_MAXSIZE[doc] = "The maximum allowable size in kilobytes of the kernel image file."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the maximum size of the kernel image file in
-                    kilobytes.
-                    If <filename>KERNEL_IMAGE_MAXSIZE</filename> is set,
-                    the size of the kernel image file is checked against
-                    the set value during the
-                    <link linkend='ref-tasks-sizecheck'><filename>do_sizecheck</filename></link>
-                    task.
-                    The task fails if the kernel image file is larger than
-                    the setting.
-                </para>
-
-                <para>
-                    <filename>KERNEL_IMAGE_MAXSIZE</filename> is useful for
-                    target devices that have a limited amount of space in
-                    which the kernel image must be stored.
-                </para>
-
-                <para>
-                    By default, this variable is not set, which means the
-                    size of the kernel image is not checked.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_IMAGE_NAME'><glossterm>KERNEL_IMAGE_NAME</glossterm>
-            <info>
-                KERNEL_IMAGE_NAME[doc] = "The base name of the kernel image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The base name of the kernel image.
-                    This variable is set in the
-                    <filename>meta/classes/kernel-artifact-names.bbclass</filename>
-                    file as follows:
-                    <literallayout class='monospaced'>
-     KERNEL_IMAGE_NAME ?= "${KERNEL_ARTIFACT_NAME}"
-                    </literallayout>
-                    The value of the
-                    <link linkend='var-KERNEL_ARTIFACT_NAME'><filename>KERNEL_ARTIFACT_NAME</filename></link>
-                    variable, which is set in the same file, has the following
-                    value:
-                    <literallayout class='monospaced'>
-     KERNEL_ARTIFACT_NAME ?= "${PKGE}-${PKGV}-${PKGR}-${MACHINE}${IMAGE_VERSION_SUFFIX}"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_IMAGETYPE'><glossterm>KERNEL_IMAGETYPE</glossterm>
-            <info>
-                KERNEL_IMAGETYPE[doc] = "The type of kernel to build for a device, usually set by the machine configuration files and defaults to 'zImage'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The type of kernel to build for a device, usually set by the
-                    machine configuration files and defaults to "zImage".
-                    This variable is used
-                    when building the kernel and is passed to <filename>make</filename> as the target to
-                    build.
-                </para>
-
-                <para>
-                    If you want to build an alternate kernel image type, use the
-                    <link linkend='var-KERNEL_ALT_IMAGETYPE'><filename>KERNEL_ALT_IMAGETYPE</filename></link>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_MODULE_AUTOLOAD'><glossterm>KERNEL_MODULE_AUTOLOAD</glossterm>
-            <info>
-                KERNEL_MODULE_AUTOLOAD[doc] = "Lists kernel modules that need to be auto-loaded during boot"
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists kernel modules that need to be auto-loaded during
-                    boot.
-                    <note>
-                        This variable replaces the deprecated
-                        <link linkend='var-module_autoload'><filename>module_autoload</filename></link>
-                        variable.
-                    </note>
-                </para>
-
-                <para>
-                    You can use the <filename>KERNEL_MODULE_AUTOLOAD</filename>
-                    variable anywhere that it can be
-                    recognized by the kernel recipe or by an out-of-tree kernel
-                    module recipe (e.g. a machine configuration file, a
-                    distribution configuration file, an append file for the
-                    recipe, or the recipe itself).
-                </para>
-
-                <para>
-                    Specify it as follows:
-                    <literallayout class='monospaced'>
-     KERNEL_MODULE_AUTOLOAD += "<replaceable>module_name1</replaceable> <replaceable>module_name2</replaceable> <replaceable>module_name3</replaceable>"
-                    </literallayout>
-                </para>
-
-                <para>
-                    Including <filename>KERNEL_MODULE_AUTOLOAD</filename> causes
-                    the OpenEmbedded build system to populate the
-                    <filename>/etc/modules-load.d/modname.conf</filename>
-                    file with the list of modules to be auto-loaded on boot.
-                    The modules appear one-per-line in the file.
-                    Here is an example of the most common use case:
-                    <literallayout class='monospaced'>
-     KERNEL_MODULE_AUTOLOAD += "<replaceable>module_name</replaceable>"
-                    </literallayout>
-                </para>
-
-                <para>
-                    For information on how to populate the
-                    <filename>modname.conf</filename> file with
-                    <filename>modprobe.d</filename> syntax lines, see the
-                    <link linkend='var-KERNEL_MODULE_PROBECONF'><filename>KERNEL_MODULE_PROBECONF</filename></link>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_MODULE_PROBECONF'><glossterm>KERNEL_MODULE_PROBECONF</glossterm>
-            <info>
-                KERNEL_MODULE_PROBECONF[doc] = "Lists kernel modules for which the build system expects to find module_conf_* values that specify configuration for each of the modules."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Provides a list of modules for which the OpenEmbedded
-                    build system expects to find
-                    <filename>module_conf_</filename><replaceable>modname</replaceable>
-                    values that specify configuration for each of the modules.
-                    For information on how to provide those module
-                    configurations, see the
-                    <link linkend='var-module_conf'><filename>module_conf_*</filename></link>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_PATH'><glossterm>KERNEL_PATH</glossterm>
-            <info>
-                KERNEL_PATH[doc] = "The location of the kernel sources. This variable is set to the value of the STAGING_KERNEL_DIR within the module class (module.bbclass)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The location of the kernel sources.
-                    This variable is set to the value of the
-                    <link linkend='var-STAGING_KERNEL_DIR'><filename>STAGING_KERNEL_DIR</filename></link>
-                    within the
-                    <link linkend='ref-classes-module'><filename>module</filename></link>
-                    class.
-                    For information on how this variable is used, see the
-                    "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#incorporating-out-of-tree-modules'>Incorporating Out-of-Tree Modules</ulink>"
-                    section in the Yocto Project Linux Kernel Development
-                    Manual.
-                </para>
-
-                <para>
-                    To help maximize compatibility with out-of-tree drivers
-                    used to build modules, the OpenEmbedded build system also
-                    recognizes and uses the
-                    <link linkend='var-KERNEL_SRC'><filename>KERNEL_SRC</filename></link>
-                    variable, which is identical to the
-                    <filename>KERNEL_PATH</filename> variable.
-                    Both variables are common variables used by external
-                    Makefiles to point to the kernel source directory.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_SRC'><glossterm>KERNEL_SRC</glossterm>
-            <info>
-                KERNEL_SRC[doc] = "The location of the kernel sources. This variable is set to the value of the STAGING_KERNEL_DIR within the module class (module.bbclass)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The location of the kernel sources.
-                    This variable is set to the value of the
-                    <link linkend='var-STAGING_KERNEL_DIR'><filename>STAGING_KERNEL_DIR</filename></link>
-                    within the
-                    <link linkend='ref-classes-module'><filename>module</filename></link>
-                    class.
-                    For information on how this variable is used, see the
-                    "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#incorporating-out-of-tree-modules'>Incorporating Out-of-Tree Modules</ulink>"
-                    section in the Yocto Project Linux Kernel Development
-                    Manual.
-                </para>
-
-                <para>
-                    To help maximize compatibility with out-of-tree drivers
-                    used to build modules, the OpenEmbedded build system also
-                    recognizes and uses the
-                    <link linkend='var-KERNEL_PATH'><filename>KERNEL_PATH</filename></link>
-                    variable, which is identical to the
-                    <filename>KERNEL_SRC</filename> variable.
-                    Both variables are common variables used by external
-                    Makefiles to point to the kernel source directory.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNEL_VERSION'><glossterm>KERNEL_VERSION</glossterm>
-            <info>
-                KERNEL_VERSION[doc] = "Specifies the version of the kernel as extracted from version.h or utsrelease.h within the kernel sources."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the version of the kernel as extracted from
-                    <filename>version.h</filename> or
-                    <filename>utsrelease.h</filename> within the kernel sources.
-                    Effects of setting this variable do not take affect until
-                    the kernel has been configured.
-                    Consequently, attempting to refer to this variable in
-                    contexts prior to configuration will not work.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KERNELDEPMODDEPEND'><glossterm>KERNELDEPMODDEPEND</glossterm>
-            <info>
-                KERNELDEPMODDEPEND[doc] = "Specifies whether or not to use the data referenced through the PKGDATA_DIR directory."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies whether the data referenced through
-                    <link linkend='var-PKGDATA_DIR'><filename>PKGDATA_DIR</filename></link>
-                    is needed or not.
-                    The <filename>KERNELDEPMODDEPEND</filename> does not
-                    control whether or not that data exists,
-                    but simply whether or not it is used.
-                    If you do not need to use the data, set the
-                    <filename>KERNELDEPMODDEPEND</filename> variable in your
-                    <filename>initramfs</filename> recipe.
-                    Setting the variable there when the data is not needed
-                    avoids a potential dependency loop.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KFEATURE_DESCRIPTION'><glossterm>KFEATURE_DESCRIPTION</glossterm>
-            <info>
-                KFEATURE_DESCRIPTION[doc] = "Provides a short description of a configuration fragment. You use this variable in the .scc file that describes a configuration fragment file."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Provides a short description of a configuration fragment.
-                    You use this variable in the <filename>.scc</filename>
-                    file that describes a configuration fragment file.
-                    Here is the variable used in a file named
-                    <filename>smp.scc</filename> to describe SMP being
-                    enabled:
-                    <literallayout class='monospaced'>
-     define KFEATURE_DESCRIPTION "Enable SMP"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KMACHINE'><glossterm>KMACHINE</glossterm>
-            <info>
-                KMACHINE[doc] = "The machine as known by the kernel."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The machine as known by the kernel.
-                    Sometimes the machine name used by the kernel does not
-                    match the machine name used by the OpenEmbedded build
-                    system.
-                    For example, the machine name that the OpenEmbedded build
-                    system understands as
-                    <filename>core2-32-intel-common</filename> goes by a
-                    different name in the Linux Yocto kernel.
-                    The kernel understands that machine as
-                    <filename>intel-core2-32</filename>.
-                    For cases like these, the <filename>KMACHINE</filename>
-                    variable maps the kernel machine name to the OpenEmbedded
-                    build system machine name.
-                </para>
-
-                <para>
-                    These mappings between different names occur in the
-                    Yocto Linux Kernel's <filename>meta</filename> branch.
-                    As an example take a look in the
-                    <filename>common/recipes-kernel/linux/linux-yocto_3.19.bbappend</filename>
-                    file:
-                    <literallayout class='monospaced'>
-     LINUX_VERSION_core2-32-intel-common = "3.19.0"
-     COMPATIBLE_MACHINE_core2-32-intel-common = "${MACHINE}"
-     SRCREV_meta_core2-32-intel-common = "8897ef68b30e7426bc1d39895e71fb155d694974"
-     SRCREV_machine_core2-32-intel-common = "43b9eced9ba8a57add36af07736344dcc383f711"
-     KMACHINE_core2-32-intel-common = "intel-core2-32"
-     KBRANCH_core2-32-intel-common = "standard/base"
-     KERNEL_FEATURES_append_core2-32-intel-common = "${KERNEL_FEATURES_INTEL_COMMON}"
-                    </literallayout>
-                    The <filename>KMACHINE</filename> statement says that
-                    the kernel understands the machine name as
-                    "intel-core2-32".
-                    However, the OpenEmbedded build system understands the
-                    machine as "core2-32-intel-common".
-                </para>
-
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-KTYPE'><glossterm>KTYPE</glossterm>
-            <info>
-                KTYPE[doc] = "Defines the kernel type to be used in assembling the configuration."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines the kernel type to be used in assembling the
-                    configuration.
-                    The linux-yocto recipes define "standard", "tiny",
-                    and "preempt-rt" kernel types.
-                    See the
-                    "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#kernel-types'>Kernel Types</ulink>"
-                    section in the Yocto Project Linux Kernel Development
-                    Manual for more information on kernel types.
-                </para>
-
-                <para>
-                    You define the <filename>KTYPE</filename> variable in the
-                    <ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#bsp-descriptions'>BSP Descriptions</ulink>.
-                    The value you use must match the value used for the
-                    <link linkend='var-LINUX_KERNEL_TYPE'><filename>LINUX_KERNEL_TYPE</filename></link>
-                    value used by the kernel recipe.
-                </para>
-            </glossdef>
-        </glossentry>
-   </glossdiv>
-
-    <glossdiv id='var-glossary-l'><title>L</title>
-
-        <glossentry id='var-LABELS'><glossterm>LABELS</glossterm>
-            <info>
-                LABELS[doc] = "Provides a list of targets for automatic configuration."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Provides a list of targets for automatic configuration.
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='ref-classes-grub-efi'><filename>grub-efi</filename></link>
-                    class for more information on how this variable is used.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LAYERDEPENDS'><glossterm>LAYERDEPENDS</glossterm>
-            <info>
-                LAYERDEPENDS[doc] = "Lists the layers, separated by spaces, on which this recipe depends. This variable is used in the conf/layer.conf file and must be suffixed with the name of the specific layer."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists the layers, separated by spaces, on which this
-                    recipe depends.
-                    Optionally, you can specify a specific layer version for a
-                    dependency by adding it to the end of the layer name.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     LAYERDEPENDS_mylayer = "anotherlayer (=3)"
-                    </literallayout>
-                    In this previous example, version 3 of "anotherlayer"
-                    is compared against
-                    <link linkend='var-LAYERVERSION'><filename>LAYERVERSION</filename></link><filename>_anotherlayer</filename>.
-                </para>
-
-                <para>
-                    An error is produced if any dependency is missing or
-                    the version numbers (if specified) do not match exactly.
-                    This variable is used in the
-                    <filename>conf/layer.conf</filename> file and must be
-                    suffixed with the name of the specific layer (e.g.
-                    <filename>LAYERDEPENDS_mylayer</filename>).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LAYERDIR'><glossterm>LAYERDIR</glossterm>
-            <info>
-                LAYERDIR[doc] = "When used inside the layer.conf configuration file, this variable provides the path of the current layer."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When used inside the <filename>layer.conf</filename> configuration
-                    file, this variable provides the path of the current layer.
-                    This variable is not available outside of <filename>layer.conf</filename>
-                    and references are expanded immediately when parsing of the file completes.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LAYERRECOMMENDS'><glossterm>LAYERRECOMMENDS</glossterm>
-            <info>
-                LAYERRECOMMENDS[doc] = "Lists the layers, separated by spaces, recommended for use with this layer."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists the layers, separated by spaces, recommended for
-                    use with this layer.
-                </para>
-
-                <para>
-                    Optionally, you can specify a specific layer version for a
-                    recommendation by adding the version to the end of the
-                    layer name.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     LAYERRECOMMENDS_mylayer = "anotherlayer (=3)"
-                    </literallayout>
-                    In this previous example, version 3 of "anotherlayer" is
-                    compared against
-                    <filename>LAYERVERSION_anotherlayer</filename>.
-                </para>
-
-                <para>
-                    This variable is used in the
-                    <filename>conf/layer.conf</filename> file and must be
-                    suffixed with the name of the specific layer (e.g.
-                    <filename>LAYERRECOMMENDS_mylayer</filename>).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LAYERSERIES_COMPAT'><glossterm>LAYERSERIES_COMPAT</glossterm>
-            <info>
-                LAYERSERIES_COMPAT[doc] = "Lists the OpenEmbedded-Core versions for which a layer is compatible."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists the versions of the
-                    <link linkend='oe-core'>OpenEmbedded-Core</link> for which
-                    a layer is compatible.
-                    Using the <filename>LAYERSERIES_COMPAT</filename> variable
-                    allows the layer maintainer to indicate which combinations
-                    of the layer and OE-Core can be expected to work.
-                    The variable gives the system a way to detect when a layer
-                    has not been tested with new releases of OE-Core (e.g.
-                    the layer is not maintained).
-                </para>
-
-                <para>
-                    To specify the OE-Core versions for which a layer is
-                    compatible, use this variable in your layer's
-                    <filename>conf/layer.conf</filename> configuration file.
-                    For the list, use the Yocto Project
-                    <ulink url='https://wiki.yoctoproject.org/wiki/Releases'>Release Name</ulink>
-                    (e.g. &DISTRO_NAME_NO_CAP;).
-                    To specify multiple OE-Core versions for the layer,
-                    use a space-separated list:
-                    <literallayout class='monospaced'>
-     LAYERSERIES_COMPAT_<replaceable>layer_root_name</replaceable> = "&DISTRO_NAME_NO_CAP; &DISTRO_NAME_NO_CAP_MINUS_ONE;"
-                    </literallayout>
-                    <note>
-                        Setting <filename>LAYERSERIES_COMPAT</filename> is
-                        required by the Yocto Project Compatible version 2
-                        standard.
-                        The OpenEmbedded build system produces a warning if
-                        the variable is not set for any given layer.
-                    </note>
-                </para>
-
-                <para>
-                    See the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-your-own-layer'>Creating Your Own Layer</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LAYERVERSION'><glossterm>LAYERVERSION</glossterm>
-            <info>
-                LAYERVERSION[doc] = "Optionally specifies the version of a layer as a single number. This variable is used in the conf/layer.conf file and must be suffixed with the name of the specific layer."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Optionally specifies the version of a layer as a single number.
-                    You can use this within
-                    <link linkend='var-LAYERDEPENDS'><filename>LAYERDEPENDS</filename></link>
-                    for another layer in order to depend on a specific version
-                    of the layer.
-                    This variable is used in the <filename>conf/layer.conf</filename> file
-                    and must be suffixed with the name of the specific layer (e.g.
-                    <filename>LAYERVERSION_mylayer</filename>).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LD'><glossterm>LD</glossterm>
-            <info>
-                LD[doc] = "Minimal command and arguments to run the linker."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The minimal command and arguments used to run the
-                    linker.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LDFLAGS'><glossterm>LDFLAGS</glossterm>
-            <info>
-                LDFLAGS[doc] = "Specifies the flags to pass to the linker."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the linker.
-                    This variable is exported to an environment
-                    variable and thus made visible to the software being
-                    built during the compilation step.
-                </para>
-
-                <para>
-                    Default initialization for <filename>LDFLAGS</filename>
-                    varies depending on what is being built:
-                    <itemizedlist>
-                        <listitem><para>
-                            <link linkend='var-TARGET_LDFLAGS'><filename>TARGET_LDFLAGS</filename></link>
-                            when building for the target
-                            </para></listitem>
-                        <listitem><para>
-                            <link linkend='var-BUILD_LDFLAGS'><filename>BUILD_LDFLAGS</filename></link>
-                            when building for the build host (i.e.
-                            <filename>-native</filename>)
-                            </para></listitem>
-                        <listitem><para>
-                            <link linkend='var-BUILDSDK_LDFLAGS'><filename>BUILDSDK_LDFLAGS</filename></link>
-                            when building for an SDK (i.e.
-                            <filename>nativesdk-</filename>)
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LEAD_SONAME'><glossterm>LEAD_SONAME</glossterm>
-            <info>
-                LEAD_SONAME[doc] = "Specifies the lead (or primary) compiled library file (i.e. .so) that the debian class applies its naming policy to given a recipe that packages multiple libraries."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the lead (or primary) compiled library file
-                    (i.e. <filename>.so</filename>) that the
-                    <link linkend='ref-classes-debian'><filename>debian</filename></link>
-                    class applies its naming policy to given a recipe that
-                    packages multiple libraries.
-                </para>
-
-                <para>
-                    This variable works in conjunction with the
-                    <filename>debian</filename> class.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LIC_FILES_CHKSUM'><glossterm>LIC_FILES_CHKSUM</glossterm>
-            <info>
-                LIC_FILES_CHKSUM[doc] = "Checksums of the license text in the recipe source code."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Checksums of the license text in the recipe source code.
-                </para>
-
-                <para>
-                    This variable tracks changes in license text of the source
-                    code files.
-                    If the license text is changed, it will trigger a build
-                    failure, which gives the developer an opportunity to review any
-                    license change.
-                </para>
-
-                <para>
-                    This variable must be defined for all recipes (unless
-                    <link linkend='var-LICENSE'><filename>LICENSE</filename></link>
-                    is set to "CLOSED").</para>
-                <para>For more information, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#usingpoky-configuring-LIC_FILES_CHKSUM'>Tracking License Changes</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LICENSE'><glossterm>LICENSE</glossterm>
-            <info>
-                LICENSE[doc] = "The list of source licenses for the recipe. The logical operators &amp;, '|', and parentheses can be used."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The list of source licenses for the recipe.
-                    Follow these rules:
-                    <itemizedlist>
-                        <listitem><para>Do not use spaces within individual
-                            license names.</para></listitem>
-                        <listitem><para>Separate license names using
-                            | (pipe) when there is a choice between licenses.
-                            </para></listitem>
-                        <listitem><para>Separate license names using
-                            &amp; (ampersand) when multiple licenses exist
-                            that cover different parts of the source.
-                            </para></listitem>
-                        <listitem><para>You can use spaces between license
-                            names.</para></listitem>
-                        <listitem><para>For standard licenses, use the names
-                            of the files in
-                            <filename>meta/files/common-licenses/</filename>
-                            or the
-                            <link linkend='var-SPDXLICENSEMAP'><filename>SPDXLICENSEMAP</filename></link>
-                            flag names defined in
-                            <filename>meta/conf/licenses.conf</filename>.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    Here are some examples:
-                    <literallayout class='monospaced'>
-     LICENSE = "LGPLv2.1 | GPLv3"
-     LICENSE = "MPL-1 &amp; LGPLv2.1"
-     LICENSE = "GPLv2+"
-                    </literallayout>
-                    The first example is from the recipes for Qt, which the user
-                    may choose to distribute under either the LGPL version
-                    2.1 or GPL version 3.
-                    The second example is from Cairo where two licenses cover
-                    different parts of the source code.
-                    The final example is from <filename>sysstat</filename>,
-                    which presents a single license.
-                </para>
-
-                <para>
-                    You can also specify licenses on a per-package basis to
-                    handle situations where components of the output have
-                    different licenses.
-                    For example, a piece of software whose code is
-                    licensed under GPLv2 but has accompanying documentation
-                    licensed under the GNU Free Documentation License 1.2 could
-                    be specified as follows:
-                    <literallayout class='monospaced'>
-     LICENSE = "GFDL-1.2 &amp; GPLv2"
-     LICENSE_${PN} = "GPLv2"
-     LICENSE_${PN}-doc = "GFDL-1.2"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LICENSE_CREATE_PACKAGE'><glossterm>LICENSE_CREATE_PACKAGE</glossterm>
-            <info>
-                LICENSE_CREATE_PACKAGE[doc] = "Creates an extra package (i.e. ${PN}-lic) for each recipe and adds that package to the RRECOMMENDS+${PN}."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                        Setting <filename>LICENSE_CREATE_PACKAGE</filename>
-                        to "1" causes the OpenEmbedded build system to create
-                        an extra package (i.e.
-                        <filename>${</filename><link linkend='var-PN'><filename>PN</filename></link><filename>}-lic</filename>)
-                        for each recipe and to add those packages to the
-                        <link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link><filename>_${PN}</filename>.
-                </para>
-
-                <para>
-                    The <filename>${PN}-lic</filename> package installs a
-                    directory in <filename>/usr/share/licenses</filename>
-                    named <filename>${PN}</filename>, which is the recipe's
-                    base name, and installs files in that directory that
-                    contain license and copyright information (i.e. copies of
-                    the appropriate license files from
-                    <filename>meta/common-licenses</filename> that match the
-                    licenses specified in the
-                    <link linkend='var-LICENSE'><filename>LICENSE</filename></link>
-                    variable of the recipe metadata and copies of files marked
-                    in
-                    <link linkend='var-LIC_FILES_CHKSUM'><filename>LIC_FILES_CHKSUM</filename></link>
-                    as containing license text).
-                </para>
-
-                <para>
-                    For related information on providing license text, see the
-                    <link linkend='var-COPY_LIC_DIRS'><filename>COPY_LIC_DIRS</filename></link>
-                    variable, the
-                    <link linkend='var-COPY_LIC_MANIFEST'><filename>COPY_LIC_MANIFEST</filename></link>
-                    variable, and the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#providing-license-text'>Providing License Text</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LICENSE_FLAGS'><glossterm>LICENSE_FLAGS</glossterm>
-            <info>
-                LICENSE_FLAGS[doc] = "Specifies additional flags for a recipe you must whitelist through LICENSE_FLAGS_WHITELIST in order to allow the recipe to be built."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies additional flags for a recipe you must
-                    whitelist through
-                    <link linkend='var-LICENSE_FLAGS_WHITELIST'><filename>LICENSE_FLAGS_WHITELIST</filename></link>
-                    in order to allow the recipe to be built.
-                    When providing multiple flags, separate them with
-                    spaces.
-                </para>
-
-                <para>
-                    This value is independent of
-                    <link linkend='var-LICENSE'><filename>LICENSE</filename></link>
-                    and is typically used to mark recipes that might
-                    require additional licenses in order to be used in a
-                    commercial product.
-                    For more information, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#enabling-commercially-licensed-recipes'>Enabling Commercially Licensed Recipes</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LICENSE_FLAGS_WHITELIST'><glossterm>LICENSE_FLAGS_WHITELIST</glossterm>
-            <info>
-                LICENSE_FLAGS_WHITELIST[doc] = "Lists license flags that when specified in LICENSE_FLAGS within a recipe should not prevent that recipe from being built."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists license flags that when specified in
-                    <link linkend='var-LICENSE_FLAGS'><filename>LICENSE_FLAGS</filename></link>
-                    within a recipe should not prevent that recipe from being
-                    built.
-                    This practice is otherwise known as "whitelisting"
-                    license flags.
-                    For more information, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#enabling-commercially-licensed-recipes'>Enabling Commercially Licensed Recipes</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LICENSE_PATH'><glossterm>LICENSE_PATH</glossterm>
-            <info>
-                LICENSE_PATH[doc] = "Path to additional licenses used during the build."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Path to additional licenses used during the build.
-                    By default, the OpenEmbedded build system uses <filename>COMMON_LICENSE_DIR</filename>
-                    to define the directory that holds common license text used during the build.
-                    The <filename>LICENSE_PATH</filename> variable allows you to extend that
-                    location to other areas that have additional licenses:
-                    <literallayout class='monospaced'>
-     LICENSE_PATH += "<replaceable>path-to-additional-common-licenses</replaceable>"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LINUX_KERNEL_TYPE'><glossterm>LINUX_KERNEL_TYPE</glossterm>
-            <info>
-                LINUX_KERNEL_TYPE[doc] = "Defines the kernel type to be used in assembling the configuration."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines the kernel type to be used in assembling the
-                    configuration.
-                    The linux-yocto recipes define "standard", "tiny", and
-                    "preempt-rt" kernel types.
-                    See the
-                    "<ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;#kernel-types'>Kernel Types</ulink>"
-                    section in the Yocto Project Linux Kernel Development
-                    Manual for more information on kernel types.
-                </para>
-
-                <para>
-                    If you do not specify a
-                    <filename>LINUX_KERNEL_TYPE</filename>, it defaults to
-                    "standard".
-                    Together with
-                    <link linkend='var-KMACHINE'><filename>KMACHINE</filename></link>,
-                    the <filename>LINUX_KERNEL_TYPE</filename> variable
-                    defines the search
-                    arguments used by the kernel tools to find the appropriate
-                    description within the kernel
-                    <link linkend='metadata'>Metadata</link>
-                    with which to build out the sources and configuration.
-                    </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LINUX_VERSION'><glossterm>LINUX_VERSION</glossterm>
-            <info>
-                LINUX_VERSION[doc] = "The Linux version from kernel.org on which the Linux kernel image being built using the OpenEmbedded build system is based. You define this variable in the kernel recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The Linux version from <filename>kernel.org</filename>
-                    on which the Linux kernel image being built using the
-                    OpenEmbedded build system is based.
-                    You define this variable in the kernel recipe.
-                    For example, the <filename>linux-yocto-3.4.bb</filename>
-                    kernel recipe found in
-                    <filename>meta/recipes-kernel/linux</filename>
-                    defines the variables as follows:
-                    <literallayout class='monospaced'>
-     LINUX_VERSION ?= "3.4.24"
-                    </literallayout>
-                </para>
-
-                <para>
-                    The <filename>LINUX_VERSION</filename> variable is used to
-                    define <link linkend='var-PV'><filename>PV</filename></link>
-                    for the recipe:
-                    <literallayout class='monospaced'>
-     PV = "${LINUX_VERSION}+git${SRCPV}"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LINUX_VERSION_EXTENSION'><glossterm>LINUX_VERSION_EXTENSION</glossterm>
-            <info>
-                LINUX_VERSION_EXTENSION[doc] = "A string extension compiled into the version string of the Linux kernel built with the OpenEmbedded build system. You define this variable in the kernel recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A string extension compiled into the version
-                    string of the Linux kernel built with the OpenEmbedded
-                    build system.
-                    You define this variable in the kernel recipe.
-                    For example, the linux-yocto kernel recipes all define
-                    the variable as follows:
-                    <literallayout class='monospaced'>
-     LINUX_VERSION_EXTENSION ?= "-yocto-${<link linkend='var-LINUX_KERNEL_TYPE'>LINUX_KERNEL_TYPE</link>}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    Defining this variable essentially sets the
-                    Linux kernel configuration item
-                    <filename>CONFIG_LOCALVERSION</filename>, which is visible
-                    through the <filename>uname</filename> command.
-                    Here is an example that shows the extension assuming it
-                    was set as previously shown:
-                    <literallayout class='monospaced'>
-     $ uname -r
-     3.7.0-rc8-custom
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-LOG_DIR'><glossterm>LOG_DIR</glossterm>
-            <info>
-                LOG_DIR[doc] = "Specifies the directory to which the OpenEmbedded build system writes overall log files. The default directory is ${TMPDIR}/log"
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the directory to which the OpenEmbedded build
-                    system writes overall log files.
-                    The default directory is <filename>${TMPDIR}/log</filename>.
-                </para>
-
-                <para>
-                    For the directory containing logs specific to each task,
-                    see the <link linkend='var-T'><filename>T</filename></link>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-m'><title>M</title>
-
-         <glossentry id='var-MACHINE'><glossterm>MACHINE</glossterm>
-            <info>
-                MACHINE[doc] = "Specifies the target device for which the image is built. You define MACHINE in the conf/local.conf file in the Build Directory."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the target device for which the image is built.
-                    You define <filename>MACHINE</filename> in the
-                    <filename>local.conf</filename> file found in the
-                    <link linkend='build-directory'>Build Directory</link>.
-                    By default, <filename>MACHINE</filename> is set to
-                    "qemux86", which is an x86-based architecture machine to
-                    be emulated using QEMU:
-                    <literallayout class='monospaced'>
-     MACHINE ?= "qemux86"
-                    </literallayout>
-                </para>
-
-                <para>
-                    The variable corresponds to a machine configuration file of the
-                    same name, through which machine-specific configurations are set.
-                    Thus, when <filename>MACHINE</filename> is set to "qemux86" there
-                    exists the corresponding <filename>qemux86.conf</filename> machine
-                    configuration file, which can be found in the
-                    <link linkend='source-directory'>Source Directory</link>
-                    in <filename>meta/conf/machine</filename>.
-                </para>
-
-                <para>
-                    The list of machines supported by the Yocto Project as
-                    shipped include the following:
-                    <literallayout class='monospaced'>
-     MACHINE ?= "qemuarm"
-     MACHINE ?= "qemuarm64"
-     MACHINE ?= "qemumips"
-     MACHINE ?= "qemumips64"
-     MACHINE ?= "qemuppc"
-     MACHINE ?= "qemux86"
-     MACHINE ?= "qemux86-64"
-     MACHINE ?= "genericx86"
-     MACHINE ?= "genericx86-64"
-     MACHINE ?= "beaglebone"
-     MACHINE ?= "edgerouter"
-                    </literallayout>
-                    The last five are Yocto Project reference hardware boards, which
-                    are provided in the <filename>meta-yocto-bsp</filename> layer.
-                    <note>Adding additional Board Support Package (BSP) layers
-                        to your configuration adds new possible settings for
-                        <filename>MACHINE</filename>.
-                    </note>
-                </para>
-            </glossdef>
-         </glossentry>
-
-         <glossentry id='var-MACHINE_ARCH'><glossterm>MACHINE_ARCH</glossterm>
-            <info>
-                MACHINE_ARCH[doc] = "Specifies the name of the machine-specific architecture. This variable is set automatically from MACHINE or TUNE_PKGARCH."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the name of the machine-specific architecture.
-                    This variable is set automatically from
-                    <link linkend='var-MACHINE'><filename>MACHINE</filename></link>
-                    or
-                    <link linkend='var-TUNE_PKGARCH'><filename>TUNE_PKGARCH</filename></link>.
-                    You should not hand-edit the
-                    <filename>MACHINE_ARCH</filename> variable.
-                </para>
-            </glossdef>
-         </glossentry>
-
-         <glossentry id='var-MACHINE_ESSENTIAL_EXTRA_RDEPENDS'><glossterm>MACHINE_ESSENTIAL_EXTRA_RDEPENDS</glossterm>
-            <info>
-                MACHINE_ESSENTIAL_EXTRA_RDEPENDS[doc] = "A list of required machine-specific packages to install as part of the image being built. Because this is a 'machine-essential' variable, the list of packages are essential for the machine to boot."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of required machine-specific packages to install as part of
-                    the image being built.
-                    The build process depends on these packages being present.
-                    Furthermore, because this is a "machine-essential" variable, the list of
-                    packages are essential for the machine to boot.
-                    The impact of this variable affects images based on
-                    <filename>packagegroup-core-boot</filename>,
-                    including the <filename>core-image-minimal</filename> image.
-                </para>
-
-                <para>
-                    This variable is similar to the
-                    <filename><link linkend='var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS'>MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</link></filename>
-                    variable with the exception that the image being built has a build
-                    dependency on the variable's list of packages.
-                    In other words, the image will not build if a file in this list is not found.
-                </para>
-
-                <para>
-                    As an example, suppose the machine for which you are building requires
-                    <filename>example-init</filename> to be run during boot to initialize the hardware.
-                    In this case, you would use the following in the machine's
-                    <filename>.conf</filename> configuration file:
-                    <literallayout class='monospaced'>
-     MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "example-init"
-                    </literallayout>
-                </para>
-            </glossdef>
-         </glossentry>
-
-         <glossentry id='var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS'><glossterm>MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</glossterm>
-            <info>
-                MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS[doc] = "A list of recommended machine-specific packages to install as part of the image being built. Because this is a 'machine-essential' variable, the list of packages are essential for the machine to boot."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of recommended machine-specific packages to install as part of
-                    the image being built.
-                    The build process does not depend on these packages being present.
-                    However, because this is a "machine-essential" variable, the list of
-                    packages are essential for the machine to boot.
-                    The impact of this variable affects images based on
-                    <filename>packagegroup-core-boot</filename>,
-                    including the <filename>core-image-minimal</filename> image.
-                </para>
-
-                <para>
-                    This variable is similar to the
-                    <filename><link linkend='var-MACHINE_ESSENTIAL_EXTRA_RDEPENDS'>MACHINE_ESSENTIAL_EXTRA_RDEPENDS</link></filename>
-                    variable with the exception that the image being built does not have a build
-                    dependency on the variable's list of packages.
-                    In other words, the image will still build if a package in this list is not found.
-                    Typically, this variable is used to handle essential kernel modules, whose
-                    functionality may be selected to be built into the kernel rather than as a module,
-                    in which case a package will not be produced.
-                </para>
-
-                <para>
-                    Consider an example where you have a custom kernel where a specific touchscreen
-                    driver is required for the machine to be usable.
-                    However, the driver can be built as a module or
-                    into the kernel depending on the kernel configuration.
-                    If the driver is built as a module, you want it to be installed.
-                    But, when the driver is built into the kernel, you still want the
-                    build to succeed.
-                    This variable sets up a "recommends" relationship so that in the latter case,
-                    the build will not fail due to the missing package.
-                    To accomplish this, assuming the package for the module was called
-                    <filename>kernel-module-ab123</filename>, you would use the
-                    following in the machine's <filename>.conf</filename> configuration
-                    file:
-                    <literallayout class='monospaced'>
-     MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS += "kernel-module-ab123"
-                    </literallayout>
-                    <note>
-                        In this example, the
-                        <filename>kernel-module-ab123</filename> recipe
-                        needs to explicitly set its
-                        <link linkend='var-PACKAGES'><filename>PACKAGES</filename></link>
-                        variable to ensure that BitBake does not use the
-                        kernel recipe's
-                        <link linkend='var-PACKAGES_DYNAMIC'><filename>PACKAGES_DYNAMIC</filename></link>
-                        variable to satisfy the dependency.
-                    </note>
-                </para>
-
-                <para>
-                    Some examples of these machine essentials are flash, screen, keyboard, mouse,
-                    or touchscreen drivers (depending on the machine).
-                </para>
-            </glossdef>
-        </glossentry>
-
-         <glossentry id='var-MACHINE_EXTRA_RDEPENDS'><glossterm>MACHINE_EXTRA_RDEPENDS</glossterm>
-            <info>
-                MACHINE_EXTRA_RDEPENDS[doc] = "A list of machine-specific packages to install as part of the image being built that are not essential for the machine to boot. However, the build process for more fully-featured images depends on the packages being present."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of machine-specific packages to install as part of the
-                    image being built that are not essential for the machine to boot.
-                    However, the build process for more fully-featured images
-                    depends on the packages being present.
-                </para>
-
-                <para>
-                    This variable affects all images based on
-                    <filename>packagegroup-base</filename>, which does not include the
-                    <filename>core-image-minimal</filename> or <filename>core-image-full-cmdline</filename>
-                    images.
-                </para>
-
-                <para>
-                    The variable is similar to the
-                    <filename><link linkend='var-MACHINE_EXTRA_RRECOMMENDS'>MACHINE_EXTRA_RRECOMMENDS</link></filename>
-                    variable with the exception that the image being built has a build
-                    dependency on the variable's list of packages.
-                    In other words, the image will not build if a file in this list is not found.
-                </para>
-
-                <para>
-                    An example is a machine that has WiFi capability but is not
-                    essential for the machine to boot the image.
-                    However, if you are building a more fully-featured image, you want to enable
-                    the WiFi.
-                    The package containing the firmware for the WiFi hardware is always
-                    expected to exist, so it is acceptable for the build process to depend upon
-                    finding the package.
-                    In this case, assuming the package for the firmware was called
-                    <filename>wifidriver-firmware</filename>, you would use the following in the
-                    <filename>.conf</filename> file for the machine:
-                    <literallayout class='monospaced'>
-     MACHINE_EXTRA_RDEPENDS += "wifidriver-firmware"
-                    </literallayout>
-                </para>
-            </glossdef>
-         </glossentry>
-
-         <glossentry id='var-MACHINE_EXTRA_RRECOMMENDS'><glossterm>MACHINE_EXTRA_RRECOMMENDS</glossterm>
-            <info>
-                MACHINE_EXTRA_RRECOMMENDS[doc] = "A list of machine-specific packages to install as part of the image being built that are not essential for booting the machine. The image being built has no build dependencies on the packages in this list."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of machine-specific packages to install as part of the
-                    image being built that are not essential for booting the machine.
-                    The image being built has no build dependency on this list of packages.
-                </para>
-
-                <para>
-                    This variable affects only images based on
-                    <filename>packagegroup-base</filename>, which does not include the
-                    <filename>core-image-minimal</filename> or <filename>core-image-full-cmdline</filename>
-                    images.
-                </para>
-
-                <para>
-                    This variable is similar to the
-                    <filename><link linkend='var-MACHINE_EXTRA_RDEPENDS'>MACHINE_EXTRA_RDEPENDS</link></filename>
-                    variable with the exception that the image being built does not have a build
-                    dependency on the variable's list of packages.
-                    In other words, the image will build if a file in this list is not found.
-                </para>
-
-                <para>
-                    An example is a machine that has WiFi capability but is not essential
-                    For the machine to boot the image.
-                    However, if you are building a more fully-featured image, you want to enable
-                    WiFi.
-                    In this case, the package containing the WiFi kernel module will not be produced
-                    if the WiFi driver is built into the kernel, in which case you still want the
-                    build to succeed instead of failing as a result of the package not being found.
-                    To accomplish this, assuming the package for the module was called
-                    <filename>kernel-module-examplewifi</filename>, you would use the
-                    following in the <filename>.conf</filename> file for the machine:
-                    <literallayout class='monospaced'>
-     MACHINE_EXTRA_RRECOMMENDS += "kernel-module-examplewifi"
-                    </literallayout>
-                </para>
-            </glossdef>
-         </glossentry>
-
-         <glossentry id='var-MACHINE_FEATURES'><glossterm>MACHINE_FEATURES</glossterm>
-            <info>
-                MACHINE_FEATURES[doc] = "Specifies the list of hardware features the MACHINE supports."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the list of hardware features the
-                    <link linkend='var-MACHINE'><filename>MACHINE</filename></link> is capable
-                    of supporting.
-                    For related information on enabling features, see the
-                    <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>,
-                    <link linkend='var-COMBINED_FEATURES'><filename>COMBINED_FEATURES</filename></link>,
-                    and
-                    <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>
-                    variables.
-                </para>
-
-                <para>
-                    For a list of hardware features supported by the Yocto
-                    Project as shipped, see the
-                    "<link linkend='ref-features-machine'>Machine Features</link>"
-                    section.
-                </para>
-            </glossdef>
-         </glossentry>
-
-        <glossentry id='var-MACHINE_FEATURES_BACKFILL'><glossterm>MACHINE_FEATURES_BACKFILL</glossterm>
-            <info>
-                MACHINE_FEATURES_BACKFILL[doc] = "Features to be added to MACHINE_FEATURES if not also present in MACHINE_FEATURES_BACKFILL_CONSIDERED. This variable is set in the meta/conf/bitbake.conf file and is not intended to be user-configurable."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Features to be added to
-                    <filename><link linkend='var-MACHINE_FEATURES'>MACHINE_FEATURES</link></filename>
-                    if not also present in
-                    <filename><link linkend='var-MACHINE_FEATURES_BACKFILL_CONSIDERED'>MACHINE_FEATURES_BACKFILL_CONSIDERED</link></filename>.
-                </para>
-
-                <para>
-                    This variable is set in the <filename>meta/conf/bitbake.conf</filename> file.
-                    It is not intended to be user-configurable.
-                    It is best to just reference the variable to see which machine features are
-                    being backfilled for all machine configurations.
-                    See the "<link linkend='ref-features-backfill'>Feature Backfilling</link>" section for
-                    more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-MACHINE_FEATURES_BACKFILL_CONSIDERED'><glossterm>MACHINE_FEATURES_BACKFILL_CONSIDERED</glossterm>
-            <info>
-                MACHINE_FEATURES_BACKFILL_CONSIDERED[doc] = "Features from MACHINE_FEATURES_BACKFILL that should not be backfilled (i.e. added to MACHINE_FEATURES) during the build."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Features from
-                    <filename><link linkend='var-MACHINE_FEATURES_BACKFILL'>MACHINE_FEATURES_BACKFILL</link></filename>
-                    that should not be backfilled (i.e. added to
-                    <filename><link linkend='var-MACHINE_FEATURES'>MACHINE_FEATURES</link></filename>)
-                    during the build.
-                    See the "<link linkend='ref-features-backfill'>Feature Backfilling</link>" section for
-                    more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-MACHINEOVERRIDES'><glossterm>MACHINEOVERRIDES</glossterm>
-            <info>
-                MACHINEOVERRIDES[doc] = "A colon-separated list of overrides that apply to the current machine."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A colon-separated list of overrides that apply to the
-                    current machine.
-                    By default, this list includes the value of
-                    <link linkend='var-MACHINE'><filename>MACHINE</filename></link>.
-                </para>
-
-                <para>
-                    You can extend <filename>MACHINEOVERRIDES</filename>
-                    to add extra overrides that should apply to a machine.
-                    For example, all machines emulated in QEMU (e.g.
-                    <filename>qemuarm</filename>, <filename>qemux86</filename>,
-                    and so forth) include a file named
-                    <filename>meta/conf/machine/include/qemu.inc</filename>
-                    that prepends the following override to
-                    <filename>MACHINEOVERRIDES</filename>:
-                    <literallayout class='monospaced'>
-     MACHINEOVERRIDES =. "qemuall:"
-                    </literallayout>
-                    This override allows variables to be overriden for all
-                    machines emulated in QEMU, like in the following example
-                    from the <filename>connman-conf</filename> recipe:
-                    <literallayout class='monospaced'>
-     SRC_URI_append_qemuall = "file://wired.config \
-                               file://wired-setup \
-                              "
-                    </literallayout>
-                    The underlying mechanism behind
-                    <filename>MACHINEOVERRIDES</filename> is simply that it is
-                    included in the default value of
-                    <link linkend='var-OVERRIDES'><filename>OVERRIDES</filename></link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-MAINTAINER'><glossterm>MAINTAINER</glossterm>
-            <info>
-                MAINTAINER[doc] = "The email address of the distribution maintainer."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The email address of the distribution maintainer.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-MIRRORS'><glossterm>MIRRORS</glossterm>
-            <info>
-                MIRRORS[doc] = "Specifies additional paths from which the OpenEmbedded build system gets source code."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies additional paths from which the OpenEmbedded
-                    build system gets source code.
-                    When the build system searches for source code, it first
-                    tries the local download directory.
-                    If that location fails, the build system tries locations
-                    defined by
-                    <link linkend='var-PREMIRRORS'><filename>PREMIRRORS</filename></link>,
-                    the upstream source, and then locations specified by
-                    <filename>MIRRORS</filename> in that order.
-                </para>
-
-                <para>
-                    Assuming your distribution
-                    (<link linkend='var-DISTRO'><filename>DISTRO</filename></link>)
-                    is "poky", the default value for
-                    <filename>MIRRORS</filename> is defined in the
-                    <filename>conf/distro/poky.conf</filename> file in the
-                    <filename>meta-poky</filename> Git repository.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-MLPREFIX'><glossterm>MLPREFIX</glossterm>
-            <info>
-                MLPREFIX[doc] = "Specifies a prefix has been added to PN to create a special version of a recipe or package (i.e. a Multilib version)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a prefix has been added to
-                    <link linkend='var-PN'><filename>PN</filename></link> to create a special version
-                    of a recipe or package (i.e. a Multilib version).
-                    The variable is used in places where the prefix needs to be
-                    added to or removed from a the name (e.g. the
-                    <link linkend='var-BPN'><filename>BPN</filename></link> variable).
-                    <filename>MLPREFIX</filename> gets set when a prefix has been
-                    added to <filename>PN</filename>.
-                    <note>
-                        The "ML" in <filename>MLPREFIX</filename> stands for
-                        "MultiLib".
-                        This representation is historical and comes from
-                        a time when <filename>nativesdk</filename> was a suffix
-                        rather than a prefix on the recipe name.
-                        When <filename>nativesdk</filename> was turned into a
-                        prefix, it made sense to set
-                        <filename>MLPREFIX</filename> for it as well.
-                    </note>
-                </para>
-
-                <para>
-                    To help understand when <filename>MLPREFIX</filename>
-                    might be needed, consider when
-                    <link linkend='var-BBCLASSEXTEND'><filename>BBCLASSEXTEND</filename></link>
-                    is used to provide a <filename>nativesdk</filename> version
-                    of a recipe in addition to the target version.
-                    If that recipe declares build-time dependencies on tasks in
-                    other recipes by using
-                    <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>,
-                    then a dependency on "foo" will automatically get rewritten
-                    to a dependency on "nativesdk-foo".
-                    However, dependencies like the following will not get
-                    rewritten automatically:
-                    <literallayout class='monospaced'>
-     do_foo[depends] += "<replaceable>recipe</replaceable>:do_foo"
-                    </literallayout>
-                    If you want such a dependency to also get transformed,
-                    you can do the following:
-                    <literallayout class='monospaced'>
-     do_foo[depends] += "${MLPREFIX}<replaceable>recipe</replaceable>:do_foo"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-module_autoload'><glossterm>module_autoload</glossterm>
-            <info>
-                module_autoload[doc] = "This variable has been replaced by the KERNEL_MODULE_AUTOLOAD variable. You should replace all occurrences of module_autoload with additions to KERNEL_MODULE_AUTOLOAD."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    This variable has been replaced by the
-                    <filename>KERNEL_MODULE_AUTOLOAD</filename> variable.
-                    You should replace all occurrences of
-                    <filename>module_autoload</filename> with additions to
-                    <filename>KERNEL_MODULE_AUTOLOAD</filename>, for example:
-                    <literallayout class='monospaced'>
-     module_autoload_rfcomm = "rfcomm"
-                    </literallayout>
-                </para>
-
-                <para>
-                    should now be replaced with:
-                    <literallayout class='monospaced'>
-     KERNEL_MODULE_AUTOLOAD += "rfcomm"
-                    </literallayout>
-                    See the
-                    <link linkend='var-KERNEL_MODULE_AUTOLOAD'><filename>KERNEL_MODULE_AUTOLOAD</filename></link>
-                    variable for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-module_conf'><glossterm>module_conf</glossterm>
-            <info>
-                module_conf[doc] = "Specifies modprobe.d syntax lines for inclusion in the /etc/modprobe.d/modname.conf file."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies
-                    <ulink url='http://linux.die.net/man/5/modprobe.d'><filename>modprobe.d</filename></ulink>
-                    syntax lines for inclusion in the
-                    <filename>/etc/modprobe.d/modname.conf</filename> file.
-                </para>
-
-                <para>
-                    You can use this variable anywhere that it can be
-                    recognized by the kernel recipe or out-of-tree kernel
-                    module recipe (e.g. a machine configuration file, a
-                    distribution configuration file, an append file for the
-                    recipe, or the recipe itself).
-                    If you use this variable, you must also be sure to list
-                    the module name in the
-                    <link linkend='var-KERNEL_MODULE_AUTOLOAD'><filename>KERNEL_MODULE_AUTOLOAD</filename></link>
-                    variable.
-                </para>
-
-                <para>
-                    Here is the general syntax:
-                    <literallayout class='monospaced'>
-     module_conf_<replaceable>module_name</replaceable> = "<replaceable>modprobe.d-syntax</replaceable>"
-                    </literallayout>
-                    You must use the kernel module name override.
-                </para>
-
-                <para>
-                    Run <filename>man modprobe.d</filename> in the shell to
-                    find out more information on the exact syntax
-                    you want to provide with <filename>module_conf</filename>.
-                </para>
-
-                <para>
-                    Including <filename>module_conf</filename> causes the
-                    OpenEmbedded build system to populate the
-                    <filename>/etc/modprobe.d/modname.conf</filename>
-                    file with <filename>modprobe.d</filename> syntax lines.
-                    Here is an example that adds the options
-                    <filename>arg1</filename> and <filename>arg2</filename>
-                    to a module named <filename>mymodule</filename>:
-                    <literallayout class='monospaced'>
-     module_conf_mymodule = "options mymodule arg1=val1 arg2=val2"
-                    </literallayout>
-                </para>
-
-                <para>
-                    For information on how to specify kernel modules to
-                    auto-load on boot, see the
-                    <link linkend='var-KERNEL_MODULE_AUTOLOAD'><filename>KERNEL_MODULE_AUTOLOAD</filename></link>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-MODULE_TARBALL_DEPLOY'><glossterm>MODULE_TARBALL_DEPLOY</glossterm>
-            <info>
-                MODULE_TARBALL_DEPLOY[doc] = "Controls creation of the modules-*.tgz file. Set this variable to "0" to disable creation of this file, which contains all of the kernel modules resulting from a kernel build."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Controls creation of the <filename>modules-*.tgz</filename>
-                    file.
-                    Set this variable to "0" to disable creation of this
-                    file, which contains all of the kernel modules resulting
-                    from a kernel build.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-MODULE_TARBALL_LINK_NAME'><glossterm>MODULE_TARBALL_LINK_NAME</glossterm>
-            <info>
-                MODULE_TARBALL_LINK_NAME[doc] = "The link name of the kernel module tarball."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The link name of the kernel module tarball.
-                    This variable is set in the
-                    <filename>meta/classes/kernel-artifact-names.bbclass</filename>
-                    file as follows:
-                    <literallayout class='monospaced'>
-     MODULE_TARBALL_LINK_NAME ?= "${KERNEL_ARTIFACT_LINK_NAME}"
-                    </literallayout>
-                    The value of the <filename>KERNEL_ARTIFACT_LINK_NAME</filename>
-                    variable, which is set in the same file, has the following
-                    value:
-                    <literallayout class='monospaced'>
-     KERNEL_ARTIFACT_LINK_NAME ?= "${MACHINE}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='var-MACHINE'><filename>MACHINE</filename></link>
-                    variable for additional information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-MODULE_TARBALL_NAME'><glossterm>MODULE_TARBALL_NAME</glossterm>
-            <info>
-                MODULE_TARBALL_NAME[doc] = "The base name of the kernel module tarball."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The base name of the kernel module tarball.
-                    This variable is set in the
-                    <filename>meta/classes/kernel-artifact-names.bbclass</filename>
-                    file as follows:
-                    <literallayout class='monospaced'>
-     MODULE_TARBALL_NAME ?= "${KERNEL_ARTIFACT_NAME}"
-                    </literallayout>
-                    The value of the
-                    <link linkend='var-KERNEL_ARTIFACT_NAME'><filename>KERNEL_ARTIFACT_NAME</filename></link>
-                    variable, which is set in the same file, has the following
-                    value:
-                    <literallayout class='monospaced'>
-     KERNEL_ARTIFACT_NAME ?= "${PKGE}-${PKGV}-${PKGR}-${MACHINE}${IMAGE_VERSION_SUFFIX}"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-<!--
-        <glossentry id='var-MULTIMACH_HOST_SYS'><glossterm>MULTIMACH_HOST_SYS</glossterm>
-            <info>
-                MULTIMACH_HOST_SYS[doc] = "Separates files for different machines such that you can build for multiple host machines using the same output directories."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
--->
-<!--
-                    Serves the same purpose as
-                    <link linkend='var-MULTIMACH_TARGET_SYS'><filename>MULTIMACH_TARGET_SYS</filename></link>,
-                    but for the "HOST" system, in situations that involve a
-                    "HOST" and a "TARGET" system.
-                    See the
-                    <link linkend='var-STAGING_DIR_TARGET'><filename>STAGING_DIR_TARGET</filename></link>
-                    variable for more information.
-                </para>
-
-                <para>
-                    The default value of this variable is:
-                    <literallayout class='monospaced'>
-     ${PACKAGE_ARCH}${HOST_VENDOR}-${HOST_OS}
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
--->
-
-        <glossentry id='var-MULTIMACH_TARGET_SYS'><glossterm>MULTIMACH_TARGET_SYS</glossterm>
-            <info>
-                MULTIMACH_TARGET_SYS[doc] = "Separates files for different machines such that you can build for multiple target machines using the same output directories."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Uniquely identifies the type of the target system for
-                    which packages are being built.
-                    This variable allows output for different types of target
-                    systems to be put into different subdirectories of the same
-                    output directory.
-                </para>
-
-                <para>
-                    The default value of this variable is:
-                    <literallayout class='monospaced'>
-     ${PACKAGE_ARCH}${TARGET_VENDOR}-${TARGET_OS}
-                    </literallayout>
-                    Some classes (e.g.
-                    <link linkend='ref-classes-cross-canadian'><filename>cross-canadian</filename></link>)
-                    modify the <filename>MULTIMACH_TARGET_SYS</filename> value.
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='var-STAMP'><filename>STAMP</filename></link>
-                    variable for an example.
-                    See the
-                    <link linkend='var-STAGING_DIR_TARGET'><filename>STAGING_DIR_TARGET</filename></link>
-                    variable for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-n'><title>N</title>
-
-        <glossentry id='var-NATIVELSBSTRING'><glossterm>NATIVELSBSTRING</glossterm>
-            <info>
-                NATIVELSBSTRING[doc] = "A string identifying the host distribution."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A string identifying the host distribution.
-                    Strings consist of the host distributor ID
-                    followed by the release, as reported by the
-                    <filename>lsb_release</filename> tool
-                    or as read from <filename>/etc/lsb-release</filename>.
-                    For example, when running a build on Ubuntu 12.10, the value
-                    is "Ubuntu-12.10".
-                    If this information is unable to be determined, the value
-                    resolves to "Unknown".
-                </para>
-
-                <para>
-                    This variable is used by default to isolate native shared
-                    state packages for different distributions (e.g. to avoid
-                    problems with <filename>glibc</filename> version
-                    incompatibilities).
-                    Additionally, the variable is checked against
-                    <link linkend='var-SANITY_TESTED_DISTROS'><filename>SANITY_TESTED_DISTROS</filename></link>
-                    if that variable is set.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-NM'><glossterm>NM</glossterm>
-            <info>
-                NM[doc] = "Minimal command and arguments to run 'nm'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The minimal command and arguments to run
-                    <filename>nm</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-NO_GENERIC_LICENSE'><glossterm>NO_GENERIC_LICENSE</glossterm>
-            <info>
-                NO_GENERIC_LICENSE[doc] = "Used to allow copying a license that does not exist in common licenses."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Avoids QA errors when you use a non-common, non-CLOSED
-                    license in a recipe.
-                    Packages exist, such as the linux-firmware package, with
-                    many licenses that are not in any way common.
-                    Also, new licenses are added occasionally to avoid
-                    introducing a lot of common license files, which are only
-                    applicable to a specific package.
-                    <filename>NO_GENERIC_LICENSE</filename> is used to allow
-                    copying a license that does not exist in common licenses.
-                </para>
-
-                <para>
-                    The following example shows how to add
-                    <filename>NO_GENERIC_LICENSE</filename> to a recipe:
-                    <literallayout class='monospaced'>
-     NO_GENERIC_LICENSE[<replaceable>license_name</replaceable>] = "<replaceable>license_file_in_fetched_source</replaceable>"
-                    </literallayout>
-                    The following is an example that uses the
-                    <filename>LICENSE.Abilis.txt</filename> file as the license
-                    from the fetched source:
-                    <literallayout class='monospaced'>
-     NO_GENERIC_LICENSE[Firmware-Abilis] = "LICENSE.Abilis.txt"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-NO_RECOMMENDATIONS'><glossterm>NO_RECOMMENDATIONS</glossterm>
-            <info>
-                NO_RECOMMENDATIONS[doc] = "When set to '1', no recommended packages will be installed. Some recommended packages might be required for certain system functionality, such as kernel-modules. It is up to the user to add packages to IMAGE_INSTALL as needed."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Prevents installation of all "recommended-only" packages.
-                    Recommended-only packages are packages installed only
-                    through the
-                    <link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link>
-                    variable).
-                    Setting the <filename>NO_RECOMMENDATIONS</filename> variable
-                    to "1" turns this feature on:
-                    <literallayout class='monospaced'>
-     NO_RECOMMENDATIONS = "1"
-                    </literallayout>
-                </para>
-
-                <para>
-                    You can set this variable globally in your
-                    <filename>local.conf</filename> file or you can attach it to
-                    a specific image recipe by using the recipe name override:
-                    <literallayout class='monospaced'>
-     NO_RECOMMENDATIONS_pn-<replaceable>target_image</replaceable> = "1"
-                    </literallayout>
-                </para>
-
-                <para>
-                    It is important to realize that if you choose to not install
-                    packages using this variable and some other packages are
-                    dependent on them (i.e. listed in a recipe's
-                    <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>
-                    variable), the OpenEmbedded build system ignores your
-                    request and will install the packages to avoid dependency
-                    errors.
-                    <note>
-                        Some recommended packages might be required for certain
-                        system functionality, such as kernel modules.
-                        It is up to you to add packages with the
-                        <link linkend='var-IMAGE_INSTALL'><filename>IMAGE_INSTALL</filename></link>
-                        variable.
-                    </note>
-                </para>
-
-                <para>
-                    Support for this variable exists only when using the
-                    IPK and RPM packaging backend.
-                    Support does not exist for DEB.
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='var-BAD_RECOMMENDATIONS'><filename>BAD_RECOMMENDATIONS</filename></link>
-                    and the
-                    <link linkend='var-PACKAGE_EXCLUDE'><filename>PACKAGE_EXCLUDE</filename></link>
-                    variables for related information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-NOAUTOPACKAGEDEBUG'><glossterm>NOAUTOPACKAGEDEBUG</glossterm>
-            <info>
-                NOAUTOPACKAGEDEBUG[doc] = "Disables auto package from splitting .debug files."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Disables auto package from splitting
-                    <filename>.debug</filename> files. If a recipe requires
-                    <filename>FILES_${PN}-dbg</filename> to be set manually,
-                    the <filename>NOAUTOPACKAGEDEBUG</filename> can be defined
-                    allowing you to define the content of the debug package.
-                    For example:
-                    <literallayout class='monospaced'>
-     NOAUTOPACKAGEDEBUG = "1"
-     FILES_${PN}-dev = "${includedir}/${QT_DIR_NAME}/Qt/*"
-     FILES_${PN}-dbg = "/usr/src/debug/"
-     FILES_${QT_BASE_NAME}-demos-doc = "${docdir}/${QT_DIR_NAME}/qch/qt.qch"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-    </glossdiv>
-
-    <glossdiv id='var-glossary-o'><title>O</title>
-
-        <glossentry id='var-OBJCOPY'><glossterm>OBJCOPY</glossterm>
-            <info>
-                OBJCOPY[doc] = "Minimal command and arguments to run 'objcopy'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The minimal command and arguments to run
-                    <filename>objcopy</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-OBJDUMP'><glossterm>OBJDUMP</glossterm>
-            <info>
-                OBJDUMP[doc] = "Minimal command and arguments to run 'objdump'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The minimal command and arguments to run
-                    <filename>objdump</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-OE_BINCONFIG_EXTRA_MANGLE'><glossterm>OE_BINCONFIG_EXTRA_MANGLE</glossterm>
-            <info>
-                OE_BINCONFIG_EXTRA_MANGLE[doc] = "When a recipe inherits the binconfig.bbclass class, this variable specifies additional arguments passed to the "sed" command."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-binconfig'><filename>binconfig</filename></link>
-                    class, this variable
-                    specifies additional arguments passed to the "sed" command.
-                    The sed command alters any paths in configuration scripts
-                    that have been set up during compilation.
-                    Inheriting this class results in all paths in these scripts
-                    being changed to point into the
-                    <filename>sysroots/</filename> directory so that all builds
-                    that use the script will use the correct directories
-                    for the cross compiling layout.
-                </para>
-
-                <para>
-                    See the <filename>meta/classes/binconfig.bbclass</filename>
-                    in the
-                    <link linkend='source-directory'>Source Directory</link>
-                    for details on how this class applies these additional
-                    sed command arguments.
-                    For general information on the
-                    <filename>binconfig</filename> class, see the
-                    "<link linkend='ref-classes-binconfig'><filename>binconfig.bbclass</filename></link>"
-                    section.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-OE_IMPORTS'><glossterm>OE_IMPORTS</glossterm>
-            <info>
-                OE_IMPORTS[doc] = "An internal variable used to tell the OpenEmbedded build system what Python modules to import for every Python function run by the system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    An internal variable used to tell the OpenEmbedded build
-                    system what Python modules to import for every Python
-                    function run by the system.
-                </para>
-
-                <note>
-                    Do not set this variable.
-                    It is for internal use only.
-                </note>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-OE_INIT_ENV_SCRIPT'><glossterm>OE_INIT_ENV_SCRIPT</glossterm>
-            <info>
-                OE_INIT_ENV_SCRIPT[doc] = "The name of the build environment setup script for the purposes of setting up the environment within the extensible SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The name of the build environment setup script for the
-                    purposes of setting up the environment within the
-                    extensible SDK.
-                    The default value is "oe-init-build-env".
-                </para>
-
-                <para>
-                    If you use a custom script to set up your build
-                    environment, set the
-                    <filename>OE_INIT_ENV_SCRIPT</filename> variable to its
-                    name.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-OE_TERMINAL'><glossterm>OE_TERMINAL</glossterm>
-            <info>
-                OE_TERMINAL[doc] = "Controls how the OpenEmbedded build system spawns interactive terminals on the host development system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Controls how the OpenEmbedded build system spawns
-                    interactive terminals on the host development system
-                    (e.g. using the BitBake command with the
-                    <filename>-c devshell</filename> command-line option).
-                    For more information, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#platdev-appdev-devshell'>Using a Development Shell</ulink>" section
-                    in the Yocto Project Development Tasks Manual.
-                 </para>
-
-                 <para>
-                    You can use the following values for the
-                    <filename>OE_TERMINAL</filename> variable:
-                    <literallayout class='monospaced'>
-     auto
-     gnome
-     xfce
-     rxvt
-     screen
-     konsole
-     none
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-OEROOT'><glossterm>OEROOT</glossterm>
-            <info>
-                OEROOT[doc] = "The directory from which the top-level build environment setup script is sourced."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The directory from which the top-level build environment
-                    setup script is sourced.
-                    The Yocto Project provides a top-level build environment
-                    setup script:
-                    <link linkend='structure-core-script'><filename>&OE_INIT_FILE;</filename></link>.
-                    When you run this script, the
-                    <filename>OEROOT</filename> variable resolves to the
-                    directory that contains the script.
-                </para>
-
-                <para>
-                    For additional information on how this variable is used,
-                    see the initialization script.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-OLDEST_KERNEL'><glossterm>OLDEST_KERNEL</glossterm>
-            <info>
-                OLDEST_KERNEL[doc] = "Declares the oldest version of the Linux kernel that the produced binaries must support."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Declares the oldest version of the Linux kernel that the
-                    produced binaries must support.
-                    This variable is passed into the build of the Embedded
-                    GNU C Library (<filename>glibc</filename>).
-                </para>
-
-                <para>
-                    The default for this variable comes from the
-                    <filename>meta/conf/bitbake.conf</filename> configuration
-                    file.
-                    You can override this default by setting the variable
-                    in a custom distribution configuration file.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-OVERRIDES'><glossterm>OVERRIDES</glossterm>
-            <info>
-                OVERRIDES[doc] = "A colon-separated list of overrides that currently apply."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A colon-separated list of overrides that currently apply.
-                    Overrides are a BitBake mechanism that allows variables to
-                    be selectively overridden at the end of parsing.
-                    The set of overrides in <filename>OVERRIDES</filename>
-                    represents the "state" during building, which includes
-                    the current recipe being built, the machine for which
-                    it is being built, and so forth.
-                </para>
-
-                <para>
-                    As an example, if the string "an-override" appears as an
-                    element in the colon-separated list in
-                    <filename>OVERRIDES</filename>, then the following
-                    assignment will override <filename>FOO</filename> with the
-                    value "overridden" at the end of parsing:
-                    <literallayout class='monospaced'>
-     FOO_an-override = "overridden"
-                    </literallayout>
-                    See the
-                    "<ulink url='&YOCTO_DOCS_BB_URL;#conditional-syntax-overrides'>Conditional Syntax (Overrides)</ulink>"
-                    section in the BitBake User Manual for more information on
-                    the overrides mechanism.
-                </para>
-
-                <para>
-                    The default value of <filename>OVERRIDES</filename>
-                    includes the values of the
-                    <link linkend='var-CLASSOVERRIDE'><filename>CLASSOVERRIDE</filename></link>,
-                    <link linkend='var-MACHINEOVERRIDES'><filename>MACHINEOVERRIDES</filename></link>,
-                    and
-                    <link linkend='var-DISTROOVERRIDES'><filename>DISTROOVERRIDES</filename></link>
-                    variables.
-                    Another important override included by default is
-                    <filename>pn-${PN}</filename>.
-                    This override allows variables to be set for a single
-                    recipe within configuration (<filename>.conf</filename>)
-                    files.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     FOO_pn-myrecipe = "myrecipe-specific value"
-                    </literallayout>
-                    <note><title>Tip</title>
-                        An easy way to see what overrides apply is to search for
-                        <filename>OVERRIDES</filename> in the output of the
-                        <filename>bitbake -e</filename> command.
-                        See the
-                        "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-debugging-viewing-variable-values'>Viewing Variable Values</ulink>"
-                        section in the Yocto Project Development Tasks
-                        Manual for more information.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-    </glossdiv>
-
-    <glossdiv id='var-glossary-p'><title>P</title>
-
-        <glossentry id='var-P'><glossterm>P</glossterm>
-            <info>
-                P[doc] = "The recipe name and version. P is comprised of ${PN}-${PV}."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The recipe name and version.
-                    <filename>P</filename> is comprised of the following:
-                    <literallayout class='monospaced'>
-     ${PN}-${PV}
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_ADD_METADATA'><glossterm>PACKAGE_ADD_METADATA</glossterm>
-            <info>
-                PACKAGE_ADD_METADATA[doc] = "This variable defines additional metadata to add to packages."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-<!--                <para role="glossdeffirst"><imagedata fileref="figures/define-generic.png" /> -->
-                    This variable defines additional metdata to add to packages.
-                </para>
-
-                <para>
-                    You may find you need to inject additional metadata into
-                    packages. This variable allows you to do that by setting
-                    the injected data as the value. Multiple fields can be
-                    added by splitting the content with the literal separator
-                    "\n".
-                </para>
-
-                <para>
-                    The suffixes '_IPK', '_DEB', or '_RPM' can be applied to
-                    the variable to do package type specific settings. It can
-                    also be made package specific by using the package name as
-                    a suffix.
-                </para>
-
-                <para>
-                    You can find out more about applying this variable in
-                    the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#adding-custom-metadata-to-packages'>Adding custom metadata to packages</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_ARCH'><glossterm>PACKAGE_ARCH</glossterm>
-            <info>
-                PACKAGE_ARCH[doc] = "The architecture of the resulting package or packages."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The architecture of the resulting package or packages.
-                </para>
-
-                <para>
-                    By default, the value of this variable is set to
-                    <link linkend='var-TUNE_PKGARCH'><filename>TUNE_PKGARCH</filename></link>
-                    when building for the target,
-                    <link linkend='var-BUILD_ARCH'><filename>BUILD_ARCH</filename></link>
-                    when building for the
-                    build host, and "${SDK_ARCH}-${SDKPKGSUFFIX}" when building
-                    for the SDK.
-                    <note>
-                        See
-                        <link linkend='var-SDK_ARCH'><filename>SDK_ARCH</filename></link>
-                        for more information.
-                    </note>
-                    However, if your recipe's output packages are built
-                    specific to the target machine rather than generally for
-                    the architecture of the machine, you should set
-                    <filename>PACKAGE_ARCH</filename> to the value of
-                    <link linkend='var-MACHINE_ARCH'><filename>MACHINE_ARCH</filename></link>
-                    in the recipe as follows:
-                    <literallayout class='monospaced'>
-     PACKAGE_ARCH = "${MACHINE_ARCH}"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_ARCHS'><glossterm>PACKAGE_ARCHS</glossterm>
-            <info>
-                PACKAGE_ARCHS[doc] = "A list of architectures compatible with the given target in order of priority."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of architectures compatible with
-                    the target machine.
-                    This variable is set automatically and should not
-                    normally be hand-edited.
-                    Entries are separated using spaces and listed in order
-                    of priority.
-                    The default value for
-                    <filename>PACKAGE_ARCHS</filename> is "all any noarch
-                    ${PACKAGE_EXTRA_ARCHS} ${MACHINE_ARCH}".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_BEFORE_PN'><glossterm>PACKAGE_BEFORE_PN</glossterm>
-            <info>
-                PACKAGE_BEFORE_PN[doc] = "Enables easily adding packages to PACKAGES before ${PN} so that the packages can pick up files that would normally be included in the default package."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Enables easily adding packages to
-                    <filename><link linkend='var-PACKAGES'>PACKAGES</link></filename>
-                    before <filename>${<link linkend='var-PN'>PN</link>}</filename>
-                    so that those added packages can pick up files that would normally be
-                    included in the default package.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_CLASSES'><glossterm>PACKAGE_CLASSES</glossterm>
-            <info>
-                PACKAGE_CLASSES[doc] = "This variable specifies the package manager to use when packaging data. It is set in the conf/local.conf file in the Build Directory."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    This variable, which is set in the
-                    <filename>local.conf</filename> configuration file found in
-                    the <filename>conf</filename> folder of the
-                    <link linkend='build-directory'>Build Directory</link>,
-                    specifies the package manager the OpenEmbedded build system
-                    uses when packaging data.
-                </para>
-
-                <para>
-                    You can provide one or more of the following arguments for
-                    the variable:
-                    <literallayout class='monospaced'>
-     PACKAGE_CLASSES ?= "package_rpm package_deb package_ipk package_tar"
-                    </literallayout>
-                    <note><title>Warning</title>
-                        While it is a legal option, the
-                        <filename>package_tar</filename> class has limited
-                        functionality due to no support for package
-                        dependencies by that backend.
-                        Therefore, it is recommended that you do not use it.
-                    </note>
-                    The build system uses only the first argument in the list
-                    as the package manager when creating your image or SDK.
-                    However, packages will be created using any additional
-                    packaging classes you specify.
-                    For example, if you use the following in your
-                    <filename>local.conf</filename> file:
-                    <literallayout class='monospaced'>
-     PACKAGE_CLASSES ?= "package_ipk"
-                    </literallayout>
-                    The OpenEmbedded build system uses the IPK package manager
-                    to create your image or SDK.
-                </para>
-
-                <para>
-                    For information on packaging and build performance effects
-                    as a result of the package manager in use, see the
-                    "<link linkend='ref-classes-package'><filename>package.bbclass</filename></link>"
-                    section.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_DEBUG_SPLIT_STYLE'><glossterm>PACKAGE_DEBUG_SPLIT_STYLE</glossterm>
-            <info>
-                PACKAGE_DEBUG_SPLIT_STYLE[doc] = "Determines how to split up the binary and debug information when creating *-dbg packages to be used with the GNU Project Debugger (GDB)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Determines how to split up the binary and debug information
-                    when creating <filename>*-dbg</filename> packages to be
-                    used with the GNU Project Debugger (GDB).
-                </para>
-
-                <para>
-                    With the
-                    <filename>PACKAGE_DEBUG_SPLIT_STYLE</filename> variable,
-                    you can control where debug information, which can include
-                    or exclude source files, is stored:
-                    <itemizedlist>
-                        <listitem><para>
-                            ".debug": Debug symbol files are placed next
-                            to the binary in a <filename>.debug</filename>
-                            directory on the target.
-                            For example, if a binary is installed into
-                            <filename>/bin</filename>, the corresponding debug
-                            symbol files are installed in
-                            <filename>/bin/.debug</filename>.
-                            Source files are placed in
-                            <filename>/usr/src/debug</filename>.
-                            </para></listitem>
-                        <listitem><para>
-                            "debug-file-directory": Debug symbol files are
-                            placed under <filename>/usr/lib/debug</filename>
-                            on the target, and separated by the path from where
-                            the binary is installed.
-                            For example, if a binary is installed in
-                            <filename>/bin</filename>, the corresponding debug
-                            symbols are installed in
-                            <filename>/usr/lib/debug/bin</filename>.
-                            Source files are placed in
-                            <filename>/usr/src/debug</filename>.
-                            </para></listitem>
-                        <listitem><para>
-                            "debug-without-src": The same behavior as
-                            ".debug" previously described with the exception
-                            that no source files are installed.
-                            </para></listitem>.
-                        <listitem><para>
-                            "debug-with-srcpkg": The same behavior as
-                            ".debug" previously described with the exception
-                            that all source files are placed in a separate
-                            <filename>*-src</filename> pkg.
-                            This is the default behavior.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    You can find out more about debugging using GDB by reading
-                    the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#platdev-gdb-remotedebug'>Debugging With the GNU Project Debugger (GDB) Remotely</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_EXCLUDE_COMPLEMENTARY'><glossterm>PACKAGE_EXCLUDE_COMPLEMENTARY</glossterm>
-            <info>
-                PACKAGE_EXCLUDE_COMPLEMENTARY[doc] = "Prevents specific packages from being installed when you are installing complementary packages."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Prevents specific packages from being installed when
-                    you are installing complementary packages.
-                </para>
-
-                <para>
-                    You might find that you want to prevent installing certain
-                    packages when you are installing complementary packages.
-                    For example, if you are using
-                    <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>
-                    to install <filename>dev-pkgs</filename>, you might not want
-                    to install all packages from a particular multilib.
-                    If you find yourself in this situation, you can use the
-                    <filename>PACKAGE_EXCLUDE_COMPLEMENTARY</filename> variable
-                    to specify regular expressions to match the packages you
-                    want to exclude.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_EXCLUDE'><glossterm>PACKAGE_EXCLUDE</glossterm>
-            <info>
-                PACKAGE_EXCLUDE[doc] = "Packages to exclude from the installation. If a listed package is required, an error is generated."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists packages that should not be installed into an image.
-                    For example:
-                    <literallayout class='monospaced'>
-     PACKAGE_EXCLUDE = "<replaceable>package_name</replaceable> <replaceable>package_name</replaceable> <replaceable>package_name</replaceable> ..."
-                    </literallayout>
-                </para>
-
-                <para>
-                    You can set this variable globally in your
-                    <filename>local.conf</filename> file or you can attach it to
-                    a specific image recipe by using the recipe name override:
-                    <literallayout class='monospaced'>
-     PACKAGE_EXCLUDE_pn-<replaceable>target_image</replaceable> = "<replaceable>package_name</replaceable>"
-                    </literallayout>
-                </para>
-
-                <para>
-                    If you choose to not install
-                    a package using this variable and some other package is
-                    dependent on it (i.e. listed in a recipe's
-                    <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>
-                    variable), the OpenEmbedded build system generates a fatal
-                    installation error.
-                    Because the build system halts the process with a fatal
-                    error, you can use the variable with an iterative
-                    development process to remove specific components from a
-                    system.
-                </para>
-
-                <para>
-                    Support for this variable exists only when using the
-                    IPK and RPM packaging backend.
-                    Support does not exist for DEB.
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='var-NO_RECOMMENDATIONS'><filename>NO_RECOMMENDATIONS</filename></link>
-                    and the
-                    <link linkend='var-BAD_RECOMMENDATIONS'><filename>BAD_RECOMMENDATIONS</filename></link>
-                    variables for related information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_EXTRA_ARCHS'><glossterm>PACKAGE_EXTRA_ARCHS</glossterm>
-            <info>
-                PACKAGE_EXTRA_ARCHS[doc] = "Specifies the list of architectures compatible with the device CPU. This variable is useful when you build for several different devices that use miscellaneous processors."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the list of architectures compatible with the device CPU.
-                    This variable is useful when you build for several different devices that use
-                    miscellaneous processors such as XScale and ARM926-EJS.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_FEED_ARCHS'><glossterm>PACKAGE_FEED_ARCHS</glossterm>
-            <info>
-                PACKAGE_FEED_ARCHS[doc] = "Optionally specifies user-defined package architectures when constructing package feed URIs."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Optionally specifies the package architectures used as
-                    part of the package feed URIs during the build.
-                    When used, the <filename>PACKAGE_FEED_ARCHS</filename>
-                    variable is appended to the final package feed URI, which
-                    is constructed using the
-                    <link linkend='var-PACKAGE_FEED_URIS'><filename>PACKAGE_FEED_URIS</filename></link>
-                    and
-                    <link linkend='var-PACKAGE_FEED_BASE_PATHS'><filename>PACKAGE_FEED_BASE_PATHS</filename></link>
-                    variables.
-                    <note><title>Tip</title>
-                        You can use the <filename>PACKAGE_FEEDS_ARCHS</filename>
-                        variable to whitelist specific package architectures.
-                        If you do not need to whitelist specific architectures,
-                        which is a common case, you can omit this variable.
-                        Omitting the variable results in all available
-                        architectures for the current machine being included
-                        into remote package feeds.
-                    </note>
-                </para>
-
-                <para>
-                    Consider the following example where the
-                    <filename>PACKAGE_FEED_URIS</filename>,
-                    <filename>PACKAGE_FEED_BASE_PATHS</filename>, and
-                    <filename>PACKAGE_FEED_ARCHS</filename> variables are
-                    defined in your <filename>local.conf</filename> file:
-                    <literallayout class='monospaced'>
-     PACKAGE_FEED_URIS = "https://example.com/packagerepos/release \
-                          https://example.com/packagerepos/updates"
-     PACKAGE_FEED_BASE_PATHS = "rpm rpm-dev"
-     PACKAGE_FEED_ARCHS = "all core2-64"
-                    </literallayout>
-                    Given these settings, the resulting package feeds are
-                    as follows:
-                    <literallayout class='monospaced'>
-     https://example.com/packagerepos/release/rpm/all
-     https://example.com/packagerepos/release/rpm/core2-64
-     https://example.com/packagerepos/release/rpm-dev/all
-     https://example.com/packagerepos/release/rpm-dev/core2-64
-     https://example.com/packagerepos/updates/rpm/all
-     https://example.com/packagerepos/updates/rpm/core2-64
-     https://example.com/packagerepos/updates/rpm-dev/all
-     https://example.com/packagerepos/updates/rpm-dev/core2-64
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_FEED_BASE_PATHS'><glossterm>PACKAGE_FEED_BASE_PATHS</glossterm>
-            <info>
-                PACKAGE_FEED_BASE_PATHS[doc] = "Specifies base path used when constructing package feed URIs."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the base path used when constructing package feed
-                    URIs.
-                    The <filename>PACKAGE_FEED_BASE_PATHS</filename> variable
-                    makes up the middle portion of a package feed URI used
-                    by the OpenEmbedded build system.
-                    The base path lies between the
-                    <link linkend='var-PACKAGE_FEED_URIS'><filename>PACKAGE_FEED_URIS</filename></link>
-                    and
-                    <link linkend='var-PACKAGE_FEED_ARCHS'><filename>PACKAGE_FEED_ARCHS</filename></link>
-                    variables.
-                </para>
-
-                <para>
-                    Consider the following example where the
-                    <filename>PACKAGE_FEED_URIS</filename>,
-                    <filename>PACKAGE_FEED_BASE_PATHS</filename>, and
-                    <filename>PACKAGE_FEED_ARCHS</filename> variables are
-                    defined in your <filename>local.conf</filename> file:
-                    <literallayout class='monospaced'>
-     PACKAGE_FEED_URIS = "https://example.com/packagerepos/release \
-                          https://example.com/packagerepos/updates"
-     PACKAGE_FEED_BASE_PATHS = "rpm rpm-dev"
-     PACKAGE_FEED_ARCHS = "all core2-64"
-                    </literallayout>
-                    Given these settings, the resulting package feeds are
-                    as follows:
-                    <literallayout class='monospaced'>
-     https://example.com/packagerepos/release/rpm/all
-     https://example.com/packagerepos/release/rpm/core2-64
-     https://example.com/packagerepos/release/rpm-dev/all
-     https://example.com/packagerepos/release/rpm-dev/core2-64
-     https://example.com/packagerepos/updates/rpm/all
-     https://example.com/packagerepos/updates/rpm/core2-64
-     https://example.com/packagerepos/updates/rpm-dev/all
-     https://example.com/packagerepos/updates/rpm-dev/core2-64
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_FEED_URIS'><glossterm>PACKAGE_FEED_URIS</glossterm>
-            <info>
-                PACKAGE_FEED_URIS[doc] = "Specifies the front portion of the package feed URI used by the OpenEmbedded build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the front portion of the package feed URI
-                    used by the OpenEmbedded build system.
-                    Each final package feed URI is comprised of
-                    <filename>PACKAGE_FEED_URIS</filename>,
-                    <link linkend='var-PACKAGE_FEED_BASE_PATHS'><filename>PACKAGE_FEED_BASE_PATHS</filename></link>,
-                    and
-                    <link linkend='var-PACKAGE_FEED_ARCHS'><filename>PACKAGE_FEED_ARCHS</filename></link>
-                    variables.
-                </para>
-
-                <para>
-                    Consider the following example where the
-                    <filename>PACKAGE_FEED_URIS</filename>,
-                    <filename>PACKAGE_FEED_BASE_PATHS</filename>, and
-                    <filename>PACKAGE_FEED_ARCHS</filename> variables are
-                    defined in your <filename>local.conf</filename> file:
-                    <literallayout class='monospaced'>
-     PACKAGE_FEED_URIS = "https://example.com/packagerepos/release \
-                          https://example.com/packagerepos/updates"
-     PACKAGE_FEED_BASE_PATHS = "rpm rpm-dev"
-     PACKAGE_FEED_ARCHS = "all core2-64"
-                    </literallayout>
-                    Given these settings, the resulting package feeds are
-                    as follows:
-                    <literallayout class='monospaced'>
-     https://example.com/packagerepos/release/rpm/all
-     https://example.com/packagerepos/release/rpm/core2-64
-     https://example.com/packagerepos/release/rpm-dev/all
-     https://example.com/packagerepos/release/rpm-dev/core2-64
-     https://example.com/packagerepos/updates/rpm/all
-     https://example.com/packagerepos/updates/rpm/core2-64
-     https://example.com/packagerepos/updates/rpm-dev/all
-     https://example.com/packagerepos/updates/rpm-dev/core2-64
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_INSTALL'><glossterm>PACKAGE_INSTALL</glossterm>
-            <info>
-                PACKAGE_INSTALL[doc] = "List of the packages to be installed into the image. The variable is generally not user-defined and uses IMAGE_INSTALL as part of the list."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The final list of packages passed to the package manager
-                    for installation into the image.
-                </para>
-
-                <para>
-                    Because the package manager controls actual installation
-                    of all packages, the list of packages passed using
-                    <filename>PACKAGE_INSTALL</filename> is not the final list
-                    of packages that are actually installed.
-                    This variable is internal to the image construction
-                    code.
-                    Consequently, in general, you should use the
-                    <link linkend='var-IMAGE_INSTALL'><filename>IMAGE_INSTALL</filename></link>
-                    variable to specify packages for installation.
-                    The exception to this is when working with
-                    the
-                    <link linkend='images-core-image-minimal-initramfs'><filename>core-image-minimal-initramfs</filename></link>
-                    image.
-                    When working with an initial RAM filesystem (initramfs)
-                    image, use the <filename>PACKAGE_INSTALL</filename>
-                    variable.
-                    For information on creating an initramfs, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#building-an-initramfs-image'>Building an Initial RAM Filesystem (initramfs) Image</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_INSTALL_ATTEMPTONLY'><glossterm>PACKAGE_INSTALL_ATTEMPTONLY</glossterm>
-            <info>
-                PACKAGE_INSTALL_ATTEMPTONLY[doc] = "List of packages attempted to be installed when creating an image. If a listed package fails to install, the build system does not generate an error. This variable is generally not user-defined."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of packages the OpenEmbedded build
-                    system attempts to install when creating an image.
-                    If a listed package fails to install, the build system
-                    does not generate an error.
-                    This variable is generally not user-defined.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_PREPROCESS_FUNCS'><glossterm>PACKAGE_PREPROCESS_FUNCS</glossterm>
-            <info>
-                PACKAGE_PREPROCESS_FUNCS[doc] = "Specifies a list of functions run to pre-process the PKGD directory prior to splitting the files out to individual packages."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of functions run to pre-process the
-                    <link linkend='var-PKGD'><filename>PKGD</filename></link>
-                    directory prior to splitting the files out to individual
-                    packages.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGE_WRITE_DEPS'><glossterm>PACKAGE_WRITE_DEPS</glossterm>
-            <info>
-                PACKAGE_WRITE_DEPS[doc] = "Specifies post-installation and pre-installation script dependencies on native/cross tools."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of dependencies for post-installation and
-                    pre-installation scripts on native/cross tools.
-                    If your post-installation or pre-installation script can
-                    execute at rootfs creation time rather than on the
-                    target but depends on a native tool in order to execute,
-                    you need to list the tools in
-                    <filename>PACKAGE_WRITE_DEPS</filename>.
-                </para>
-
-                <para>
-                    For information on running post-installation scripts, see
-                    the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#new-recipe-post-installation-scripts'>Post-Installation Scripts</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGECONFIG'><glossterm>PACKAGECONFIG</glossterm>
-            <info>
-                PACKAGECONFIG[doc] = "This variable provides a means of enabling or disabling features of a recipe on a per-recipe basis."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    This variable provides a means of enabling or disabling
-                    features of a recipe on a per-recipe basis.
-                    <filename>PACKAGECONFIG</filename> blocks are defined
-                    in recipes when you specify features and then arguments
-                    that define feature behaviors.
-                    Here is the basic block structure (broken over multiple
-                    lines for readability):
-                    <literallayout class='monospaced'>
-     PACKAGECONFIG ??= "f1 f2 f3 ..."
-     PACKAGECONFIG[f1] = "\
-                          --with-f1, \
-                          --without-f1, \
-                          build-deps-for-f1, \
-                          runtime-deps-for-f1, \
-                          runtime-recommends-for-f1, \
-                          packageconfig-conflicts-for-f1 \
-                          "
-     PACKAGECONFIG[f2] = "\
-                         ... and so on and so on ...
-                    </literallayout>
-                </para>
-
-                <para>
-                    The <filename>PACKAGECONFIG</filename>
-                    variable itself specifies a space-separated list of the
-                    features to enable.
-                    Following the features, you can determine the behavior of
-                    each feature by providing up to six order-dependent
-                    arguments, which are separated by commas.
-                    You can omit any argument you like but must retain the
-                    separating commas.
-                    The order is important and specifies the following:
-                    <orderedlist>
-                        <listitem><para>Extra arguments
-                            that should be added to the configure script
-                            argument list
-                            (<link linkend='var-EXTRA_OECONF'><filename>EXTRA_OECONF</filename></link>
-                            or
-                            <link linkend='var-PACKAGECONFIG_CONFARGS'><filename>PACKAGECONFIG_CONFARGS</filename></link>)
-                            if the feature is enabled.</para></listitem>
-                        <listitem><para>Extra arguments
-                            that should be added to <filename>EXTRA_OECONF</filename>
-                            or <filename>PACKAGECONFIG_CONFARGS</filename>
-                            if the feature is disabled.
-                            </para></listitem>
-                        <listitem><para>Additional build dependencies
-                            (<link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>)
-                            that should be added if the feature is enabled.
-                            </para></listitem>
-                        <listitem><para>Additional runtime dependencies
-                            (<link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>)
-                            that should be added if the feature is enabled.
-                            </para></listitem>
-                        <listitem><para>Additional runtime recommendations
-                            (<link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link>)
-                            that should be added if the feature is enabled.
-                            </para></listitem>
-                        <listitem><para>Any conflicting (that is, mutually
-                            exclusive) <filename>PACKAGECONFIG</filename>
-                            settings for this feature.
-                            </para></listitem>
-                    </orderedlist>
-                </para>
-
-                <para>
-                    Consider the following
-                    <filename>PACKAGECONFIG</filename> block taken from the
-                    <filename>librsvg</filename> recipe.
-                    In this example the feature is <filename>gtk</filename>,
-                    which has three arguments that determine the feature's
-                    behavior.
-                    <literallayout class='monospaced'>
-     PACKAGECONFIG[gtk] = "--with-gtk3,--without-gtk3,gtk+3"
-                    </literallayout>
-                    The <filename>--with-gtk3</filename> and
-                    <filename>gtk+3</filename> arguments apply only if
-                    the feature is enabled.
-                    In this case, <filename>--with-gtk3</filename> is
-                    added to the configure script argument list and
-                    <filename>gtk+3</filename> is added to
-                    <filename>DEPENDS</filename>.
-                    On the other hand, if the feature is disabled say through
-                    a <filename>.bbappend</filename> file in another layer, then
-                    the second argument <filename>--without-gtk3</filename> is
-                    added to the configure script instead.
-                </para>
-
-                <para>
-                    The basic <filename>PACKAGECONFIG</filename> structure
-                    previously described holds true regardless of whether you
-                    are creating a block or changing a block.
-                    When creating a block, use the structure inside your
-                    recipe.
-                </para>
-
-                <para>
-                    If you want to change an existing
-                    <filename>PACKAGECONFIG</filename> block, you can do so
-                    one of two ways:
-                    <itemizedlist>
-                        <listitem><para><emphasis>Append file:</emphasis>
-                            Create an append file named
-                            <replaceable>recipename</replaceable><filename>.bbappend</filename>
-                            in your layer and override the value of
-                            <filename>PACKAGECONFIG</filename>.
-                            You can either completely override the variable:
-                            <literallayout class='monospaced'>
-      PACKAGECONFIG = "f4 f5"
-                            </literallayout>
-                            Or, you can just append the variable:
-                            <literallayout class='monospaced'>
-     PACKAGECONFIG_append = " f4"
-                            </literallayout></para></listitem>
-                        <listitem><para><emphasis>Configuration file:</emphasis>
-                            This method is identical to changing the block
-                            through an append file except you edit your
-                            <filename>local.conf</filename> or
-                            <filename><replaceable>mydistro</replaceable>.conf</filename> file.
-                            As with append files previously described,
-                            you can either completely override the variable:
-                            <literallayout class='monospaced'>
-     PACKAGECONFIG_pn-<replaceable>recipename</replaceable> = "f4 f5"
-                            </literallayout>
-                            Or, you can just amend the variable:
-                            <literallayout class='monospaced'>
-     PACKAGECONFIG_append_pn-<replaceable>recipename</replaceable> = " f4"
-                            </literallayout></para></listitem>
-                    </itemizedlist>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGECONFIG_CONFARGS'><glossterm>PACKAGECONFIG_CONFARGS</glossterm>
-            <info>
-                PACKAGECONFIG_CONFARGS[doc] = "A space-separated list of configuration options generated from the PACKAGECONFIG setting."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A space-separated list of configuration options generated
-                    from the
-                    <link linkend='var-PACKAGECONFIG'><filename>PACKAGECONFIG</filename></link>
-                    setting.
-                </para>
-
-                <para>
-                    Classes such as
-                    <link linkend='ref-classes-autotools'><filename>autotools</filename></link>
-                    and
-                    <link linkend='ref-classes-cmake'><filename>cmake</filename></link>
-                    use <filename>PACKAGECONFIG_CONFARGS</filename> to pass
-                    <filename>PACKAGECONFIG</filename> options to
-                    <filename>configure</filename> and
-                    <filename>cmake</filename>, respectively.
-                    If you are using
-                    <filename>PACKAGECONFIG</filename> but not a class that
-                    handles the <filename>do_configure</filename> task, then
-                    you need to use
-                    <filename>PACKAGECONFIG_CONFARGS</filename> appropriately.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGEGROUP_DISABLE_COMPLEMENTARY'><glossterm>PACKAGEGROUP_DISABLE_COMPLEMENTARY</glossterm>
-            <info>
-                PACKAGEGROUP_DISABLE_COMPLEMENTARY[doc] = "Prevents automatic creation of the normal complementary packages such as -dev and -dbg in a packagegroup recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    For recipes inheriting the
-                    <link linkend='ref-classes-packagegroup'><filename>packagegroup</filename></link>
-                    class, setting
-                    <filename>PACKAGEGROUP_DISABLE_COMPLEMENTARY</filename> to
-                    "1" specifies that the normal complementary packages
-                    (i.e. <filename>-dev</filename>,
-                    <filename>-dbg</filename>, and so forth) should not be
-                    automatically created by the
-                    <filename>packagegroup</filename> recipe, which is the
-                    default behavior.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGES'><glossterm>PACKAGES</glossterm>
-            <info>
-                PACKAGES[doc] = "The list of packages the recipe creates."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The list of packages the recipe creates.
-                    The default value is the following:
-                    <literallayout class='monospaced'>
-     ${PN}-dbg ${PN}-staticdev ${PN}-dev ${PN}-doc ${PN}-locale ${PACKAGE_BEFORE_PN} ${PN}
-                    </literallayout>
-                </para>
-
-                <para>
-                    During packaging, the
-                    <link linkend='ref-tasks-package'><filename>do_package</filename></link>
-                    task goes through <filename>PACKAGES</filename> and uses
-                    the
-                    <link linkend='var-FILES'><filename>FILES</filename></link>
-                    variable corresponding to each package to assign files to
-                    the package.
-                    If a file matches the <filename>FILES</filename> variable
-                    for more than one package in <filename>PACKAGES</filename>,
-                    it will be assigned to the earliest (leftmost) package.
-                </para>
-
-                <para>
-                    Packages in the variable's list that are empty (i.e. where
-                    none of the patterns in
-                    <filename>FILES_</filename><replaceable>pkg</replaceable>
-                    match any files installed by the
-                    <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-                    task) are not generated, unless generation is forced through
-                    the
-                    <link linkend='var-ALLOW_EMPTY'><filename>ALLOW_EMPTY</filename></link>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGES_DYNAMIC'><glossterm>PACKAGES_DYNAMIC</glossterm>
-            <info>
-                PACKAGES_DYNAMIC[doc] = "A promise that your recipe satisfies runtime dependencies for optional modules that are found in other recipes."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A promise that your recipe satisfies runtime dependencies
-                    for optional modules that are found in other recipes.
-                    <filename>PACKAGES_DYNAMIC</filename>
-                    does not actually satisfy the dependencies, it only states that
-                    they should be satisfied.
-                    For example, if a hard, runtime dependency
-                    (<link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>)
-                    of another package is satisfied
-                    at build time through the <filename>PACKAGES_DYNAMIC</filename>
-                    variable, but a package with the module name is never actually
-                    produced, then the other package will be broken.
-                    Thus, if you attempt to include that package in an image,
-                    you will get a dependency failure from the packaging system
-                    during the
-                    <link linkend='ref-tasks-rootfs'><filename>do_rootfs</filename></link>
-                    task.
-                </para>
-
-                <para>
-                    Typically, if there is a chance that such a situation can
-                    occur and the package that is not created is valid
-                    without the dependency being satisfied, then you should use
-                    <link linkend='var-RRECOMMENDS'><filename>RRECOMMENDS</filename></link>
-                    (a soft runtime dependency) instead of
-                    <filename>RDEPENDS</filename>.
-                </para>
-
-                <para>
-                    For an example of how to use the <filename>PACKAGES_DYNAMIC</filename>
-                    variable when you are splitting packages, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#handling-optional-module-packaging'>Handling Optional Module Packaging</ulink>" section
-                    in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PACKAGESPLITFUNCS'><glossterm>PACKAGESPLITFUNCS</glossterm>
-            <info>
-                PACKAGESPLITFUNCS[doc] = "Specifies a list of functions run to perform additional splitting of files into individual packages."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of functions run to perform additional
-                    splitting of files into individual packages.
-                    Recipes can either prepend to this variable or prepend
-                    to the <filename>populate_packages</filename> function
-                    in order to perform additional package splitting.
-                    In either case, the function should set
-                    <link linkend='var-PACKAGES'><filename>PACKAGES</filename></link>,
-                    <link linkend='var-FILES'><filename>FILES</filename></link>,
-                    <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link>
-                    and other packaging variables appropriately in order to
-                    perform the desired splitting.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PARALLEL_MAKE'><glossterm>PARALLEL_MAKE</glossterm>
-            <info>
-                PARALLEL_MAKE[doc] = "Specifies extra options that are passed to the make command during the compile tasks. This variable is usually in the form -j x, where x represents the maximum number of parallel threads make can run."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Extra options passed to the <filename>make</filename>
-                    command during the
-                    <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>
-                    task in order to specify parallel compilation on the local
-                    build host.
-                    This variable is usually in the form "-j <replaceable>x</replaceable>",
-                    where <replaceable>x</replaceable> represents the maximum
-                    number of parallel threads <filename>make</filename> can
-                    run.
-                    <note><title>Caution</title>
-                        In order for <filename>PARALLEL_MAKE</filename> to be
-                        effective, <filename>make</filename> must be called
-                        with
-                        <filename>${</filename><link linkend='var-EXTRA_OEMAKE'><filename>EXTRA_OEMAKE</filename></link><filename>}</filename>.
-                        An easy way to ensure this is to use the
-                        <filename>oe_runmake</filename> function.
-                    </note>
-                </para>
-
-                <para>
-                    By default, the OpenEmbedded build system automatically
-                    sets this variable to be equal to the number of cores the
-                    build system uses.
-                    <note>
-                        If the software being built experiences dependency
-                        issues during the <filename>do_compile</filename>
-                        task that result in race conditions, you can clear
-                        the <filename>PARALLEL_MAKE</filename> variable within
-                        the recipe as a workaround.
-                        For information on addressing race conditions, see the
-                        "<ulink url='&YOCTO_DOCS_DEV_URL;#debugging-parallel-make-races'>Debugging Parallel Make Races</ulink>"
-                        section in the Yocto Project Development Tasks Manual.
-                    </note>
-                    For single socket systems (i.e. one CPU), you should not
-                    have to override this variable to gain optimal parallelism
-                    during builds.
-                    However, if you have very large systems that employ
-                    multiple physical CPUs, you might want to make sure the
-                    <filename>PARALLEL_MAKE</filename> variable is not
-                    set higher than "-j 20".
-                </para>
-
-                <para>
-                    For more information on speeding up builds, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#speeding-up-a-build'>Speeding Up a Build</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PARALLEL_MAKEINST'><glossterm>PARALLEL_MAKEINST</glossterm>
-            <info>
-                PARALLEL_MAKEINST[doc] = "Extra options passed to the make install command during the do_install task in order to specify parallel installation."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Extra options passed to the
-                    <filename>make install</filename> command during the
-                    <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-                    task in order to specify parallel installation.
-                    This variable defaults to the value of
-                    <link linkend='var-PARALLEL_MAKE'><filename>PARALLEL_MAKE</filename></link>.
-                    <note><title>Notes and Cautions</title>
-                        <para>In order for <filename>PARALLEL_MAKEINST</filename>
-                        to be
-                        effective, <filename>make</filename> must be called
-                        with
-                        <filename>${</filename><link linkend='var-EXTRA_OEMAKE'><filename>EXTRA_OEMAKE</filename></link><filename>}</filename>.
-                        An easy way to ensure this is to use the
-                        <filename>oe_runmake</filename> function.</para>
-
-                        <para>If the software being built experiences
-                        dependency issues during the
-                        <filename>do_install</filename> task that result in
-                        race conditions, you can clear the
-                        <filename>PARALLEL_MAKEINST</filename> variable within
-                        the recipe as a workaround.
-                        For information on addressing race conditions, see the
-                        "<ulink url='&YOCTO_DOCS_DEV_URL;#debugging-parallel-make-races'>Debugging Parallel Make Races</ulink>"
-                        section in the Yocto Project Development Tasks Manual.
-                        </para>
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PATCHRESOLVE'><glossterm>PATCHRESOLVE</glossterm>
-            <info>
-                PATCHRESOLVE[doc] = "Enable or disable interactive patch resolution."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Determines the action to take when a patch fails.
-                    You can set this variable to one of two values: "noop" and
-                    "user".
-                </para>
-
-                <para>
-                    The default value of "noop" causes the build to simply fail
-                    when the OpenEmbedded build system cannot successfully
-                    apply a patch.
-                    Setting the value to "user" causes the build system to
-                    launch a shell and places you in the right location so that
-                    you can manually resolve the conflicts.
-                </para>
-
-                <para>
-                    Set this variable in your
-                    <filename>local.conf</filename> file.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PATCHTOOL'><glossterm>PATCHTOOL</glossterm>
-            <info>
-                PATCHTOOL[doc] = "Specifies the utility used to apply patches for a recipe during do_patch."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the utility used to apply patches for a recipe
-                    during the
-                    <link linkend='ref-tasks-patch'><filename>do_patch</filename></link>
-                    task.
-                    You can specify one of three utilities: "patch", "quilt", or
-                    "git".
-                    The default utility used is "quilt" except for the
-                    quilt-native recipe itself.
-                    Because the quilt tool is not available at the
-                    time quilt-native is being patched, it uses "patch".
-                </para>
-
-                <para>
-                    If you wish to use an alternative patching tool, set the
-                    variable in the recipe using one of the following:
-                    <literallayout class='monospaced'>
-     PATCHTOOL = "patch"
-     PATCHTOOL = "quilt"
-     PATCHTOOL = "git"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PE'><glossterm>PE</glossterm>
-            <info>
-                PE[doc] = "The epoch of the recipe. The default value is '0'. The field is used to make upgrades possible when the versioning scheme changes in some backwards incompatible way."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The epoch of the recipe.
-                    By default, this variable is unset.
-                    The variable is used to make upgrades possible when the
-                    versioning scheme changes in some backwards incompatible
-                    way.
-                </para>
-
-                <para>
-                    <filename>PE</filename> is the default value of the
-                    <link linkend='var-PKGE'><filename>PKGE</filename></link>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PF'><glossterm>PF</glossterm>
-            <info>
-                PF[doc] = "Specifies the recipe or package name and includes all version and revision numbers. This variable is comprised of ${PN}-${EXTENDPE}${PV}-${PR}."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the recipe or package name and includes all version and revision
-                    numbers (i.e. <filename>glibc-2.13-r20+svnr15508/</filename> and
-                    <filename>bash-4.2-r1/</filename>).
-                    This variable is comprised of the following:
-                    <literallayout class='monospaced'>
-     ${<link linkend='var-PN'>PN</link>}-${<link linkend='var-EXTENDPE'>EXTENDPE</link>}${<link linkend='var-PV'>PV</link>}-${<link linkend='var-PR'>PR</link>}
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PIXBUF_PACKAGES'><glossterm>PIXBUF_PACKAGES</glossterm>
-            <info>
-                PIXBUF_PACKAGES[doc] = "When a recipe inherits the pixbufcache class, this variable identifies packages that contain the pixbuf loaders used with gdk-pixbuf."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-pixbufcache'><filename>pixbufcache</filename></link>
-                    class, this variable identifies packages that contain
-                    the pixbuf loaders used with
-                    <filename>gdk-pixbuf</filename>.
-                    By default, the <filename>pixbufcache</filename> class
-                    assumes that the loaders are in the recipe's main package
-                    (i.e. <filename>${</filename><link linkend='var-PN'><filename>PN</filename></link><filename>}</filename>).
-                    Use this variable if the loaders you need are in a package
-                    other than that main package.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PKG'><glossterm>PKG</glossterm>
-            <info>
-                PKG[doc] = "The name of the resulting package created by the OpenEmbedded build system. When you use this variable, you must use a package name override."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The name of the resulting package created by the
-                    OpenEmbedded build system.
-                    <note>
-                        When using the <filename>PKG</filename> variable, you
-                        must use a package name override.
-                    </note>
-                </para>
-
-                <para>
-                    For example, when the
-                    <link linkend='ref-classes-debian'><filename>debian</filename></link>
-                    class renames the output package, it does so by setting
-                    <filename>PKG_<replaceable>packagename</replaceable></filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PKG_CONFIG_PATH'><glossterm>PKG_CONFIG_PATH</glossterm>
-            <info>
-                PKG_CONFIG_PATH[doc] = "Path to pkg-config files for the current build context."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The path to <filename>pkg-config</filename> files for the
-                    current build context.
-                    <filename>pkg-config</filename> reads this variable
-                    from the environment.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PKGD'><glossterm>PKGD</glossterm>
-            <info>
-                PKGD[doc] = "Points to the destination directory for files to be packaged before they are split into individual packages."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the destination directory for files to be
-                    packaged before they are split into individual packages.
-                    This directory defaults to the following:
-                    <literallayout class='monospaced'>
-     ${WORKDIR}/package
-                    </literallayout>
-                </para>
-
-                <para>
-                    Do not change this default.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PKGDATA_DIR'><glossterm>PKGDATA_DIR</glossterm>
-            <info>
-                PKGDATA_DIR[doc] = "Points to a shared, global-state directory that holds data generated during the packaging process."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to a shared, global-state directory that holds data
-                    generated during the packaging process.
-                    During the packaging process, the
-                    <link linkend='ref-tasks-packagedata'><filename>do_packagedata</filename></link>
-                    task packages data for each recipe and installs it into
-                    this temporary, shared area.
-                    This directory defaults to the following, which you should
-                    not change:
-                    <literallayout class='monospaced'>
-     ${STAGING_DIR_HOST}/pkgdata
-                    </literallayout>
-                    For examples of how this data is used, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#automatically-added-runtime-dependencies'>Automatically Added Runtime Dependencies</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual
-                    and the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#viewing-package-information-with-oe-pkgdata-util'>Viewing Package Information with <filename>oe-pkgdata-util</filename></ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    For more information on the shared, global-state directory,
-                    see
-                    <link linkend='var-STAGING_DIR_HOST'><filename>STAGING_DIR_HOST</filename></link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PKGDEST'><glossterm>PKGDEST</glossterm>
-            <info>
-                PKGDEST[doc] = "Points to the parent directory for files to be packaged after they have been split into individual packages."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the parent directory for files to be packaged
-                    after they have been split into individual packages.
-                    This directory defaults to the following:
-                    <literallayout class='monospaced'>
-     ${WORKDIR}/packages-split
-                    </literallayout>
-                </para>
-
-                <para>
-                    Under this directory, the build system creates
-                    directories for each package specified in
-                    <link linkend='var-PACKAGES'><filename>PACKAGES</filename></link>.
-                    Do not change this default.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PKGDESTWORK'><glossterm>PKGDESTWORK</glossterm>
-            <info>
-                PKGDESTWORK[doc] = "Points to a temporary work area where the do_package task saves package metadata."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to a temporary work area where the
-                    <link linkend='ref-tasks-package'><filename>do_package</filename></link>
-                    task saves package metadata.
-                    The <filename>PKGDESTWORK</filename> location defaults to
-                    the following:
-                    <literallayout class='monospaced'>
-     ${WORKDIR}/pkgdata
-                    </literallayout>
-                    Do not change this default.
-                </para>
-
-                <para>
-                    The
-                    <link linkend='ref-tasks-packagedata'><filename>do_packagedata</filename></link>
-                    task copies the package metadata from
-                    <filename>PKGDESTWORK</filename> to
-                    <link linkend='var-PKGDATA_DIR'><filename>PKGDATA_DIR</filename></link>
-                    to make it available globally.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PKGE'><glossterm>PKGE</glossterm>
-            <info>
-                PKGE[doc] = "The epoch of the package(s) built by the recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The epoch of the package(s) built by the recipe.
-                    By default, <filename>PKGE</filename> is set to
-                    <link linkend='var-PE'><filename>PE</filename></link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PKGR'><glossterm>PKGR</glossterm>
-            <info>
-                PKGR[doc] = "The revision of the package(s) built by the recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The revision of the package(s) built by the recipe.
-                    By default, <filename>PKGR</filename> is set to
-                    <link linkend='var-PR'><filename>PR</filename></link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PKGV'><glossterm>PKGV</glossterm>
-            <info>
-                PKGV[doc] = "The version of the package(s) built by the recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The version of the package(s) built by the
-                    recipe.
-                    By default, <filename>PKGV</filename> is set to
-                    <link linkend='var-PV'><filename>PV</filename></link>.
-                 </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PN'><glossterm>PN</glossterm>
-            <info>
-                PN[doc] = "PN refers to a recipe name in the context of a file used by the OpenEmbedded build system as input to create a package."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    This variable can have two separate functions depending on the context: a recipe
-                    name or a resulting package name.
-                </para>
-
-                <para>
-                    <filename>PN</filename> refers to a recipe name in the context of a file used
-                    by the OpenEmbedded build system as input to create a package.
-                    The name is normally extracted from the recipe file name.
-                    For example, if the recipe is named
-                    <filename>expat_2.0.1.bb</filename>, then the default value of <filename>PN</filename>
-                    will be "expat".
-                </para>
-
-                <para>
-                    The variable refers to a package name in the context of a file created or produced by the
-                    OpenEmbedded build system.
-                </para>
-
-                <para>
-                    If applicable, the <filename>PN</filename> variable also contains any special
-                    suffix or prefix.
-                    For example, using <filename>bash</filename> to build packages for the native
-                    machine, <filename>PN</filename> is <filename>bash-native</filename>.
-                    Using <filename>bash</filename> to build packages for the target and for Multilib,
-                    <filename>PN</filename> would be <filename>bash</filename> and
-                    <filename>lib64-bash</filename>, respectively.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PNBLACKLIST'><glossterm>PNBLACKLIST</glossterm>
-            <info>
-                PNBLACKLIST[doc] = "Lists recipes you do not want the OpenEmbedded build system to build."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists recipes you do not want the OpenEmbedded build system
-                    to build.
-                    This variable works in conjunction with the
-                    <link linkend='ref-classes-blacklist'><filename>blacklist</filename></link>
-                    class, which is inherited globally.
-                </para>
-
-                <para>
-                    To prevent a recipe from being built, use the
-                    <filename>PNBLACKLIST</filename> variable in your
-                    <filename>local.conf</filename> file.
-                    Here is an example that prevents
-                    <filename>myrecipe</filename> from being built:
-                    <literallayout class='monospaced'>
-     PNBLACKLIST[myrecipe] = "Not supported by our organization."
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-POPULATE_SDK_POST_HOST_COMMAND'><glossterm>POPULATE_SDK_POST_HOST_COMMAND</glossterm>
-            <info>
-                POPULATE_SDK_POST_HOST_COMMAND[doc] = "Specifies a list of functions to call once the OpenEmbedded build system has created host part of the SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of functions to call once the
-                    OpenEmbedded build system has created the host part of
-                    the SDK.
-                    You can specify functions separated by semicolons:
-                    <literallayout class='monospaced'>
-     POPULATE_SDK_POST_HOST_COMMAND += "<replaceable>function</replaceable>; ... "
-                    </literallayout>
-                </para>
-
-                <para>
-                    If you need to pass the SDK path to a command
-                    within a function, you can use
-                    <filename>${SDK_DIR}</filename>, which points to
-                    the parent directory used by the OpenEmbedded build
-                    system when creating SDK output.
-                    See the
-                    <link linkend='var-SDK_DIR'><filename>SDK_DIR</filename></link>
-                    variable for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-POPULATE_SDK_POST_TARGET_COMMAND'><glossterm>POPULATE_SDK_POST_TARGET_COMMAND</glossterm>
-            <info>
-                POPULATE_SDK_POST_TARGET_COMMAND[doc] = "Specifies a list of functions to call once the OpenEmbedded build system has created target part of the SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of functions to call once the
-                    OpenEmbedded build system has created the target part of
-                    the SDK.
-                    You can specify functions separated by semicolons:
-                    <literallayout class='monospaced'>
-     POPULATE_SDK_POST_TARGET_COMMAND += "<replaceable>function</replaceable>; ... "
-                    </literallayout>
-                </para>
-
-                <para>
-                    If you need to pass the SDK path to a command
-                    within a function, you can use
-                    <filename>${SDK_DIR}</filename>, which points to
-                    the parent directory used by the OpenEmbedded build
-                    system when creating SDK output.
-                    See the
-                    <link linkend='var-SDK_DIR'><filename>SDK_DIR</filename></link>
-                    variable for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PR'><glossterm>PR</glossterm>
-            <info>
-                PR[doc] = "The revision of the recipe. The default value for this variable is 'r0'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The revision of the recipe. The default value for this
-                    variable is "r0".
-                    Subsequent revisions of the recipe conventionally have the
-                    values "r1", "r2", and so forth.
-                    When
-                    <link linkend='var-PV'><filename>PV</filename></link>
-                    increases, <filename>PR</filename> is conventionally reset
-                    to "r0".
-                    <note>
-                        The OpenEmbedded build system does not need the aid of
-                        <filename>PR</filename> to know when to rebuild a
-                        recipe.
-                        The build system uses the task
-                        <ulink url='&YOCTO_DOCS_OM_URL;#overview-checksums'>input checksums</ulink>
-                        along with the
-                        <link linkend='structure-build-tmp-stamps'>stamp</link>
-                        and
-                        <ulink url='&YOCTO_DOCS_OM_URL;#shared-state-cache'>shared state cache</ulink>
-                        mechanisms.
-                    </note>
-                    The <filename>PR</filename> variable primarily becomes
-                    significant when a package manager dynamically installs
-                    packages on an already built image.
-                    In this case, <filename>PR</filename>, which is the default
-                    value of
-                    <link linkend='var-PKGR'><filename>PKGR</filename></link>,
-                    helps the package manager distinguish which package is the
-                    most recent one in cases where many packages have the same
-                    <filename>PV</filename> (i.e. <filename>PKGV</filename>).
-                    A component having many packages with the same
-                    <filename>PV</filename> usually means that the packages all
-                    install the same upstream version, but with later
-                    (<filename>PR</filename>) version packages including
-                    packaging fixes.
-                    <note>
-                        <filename>PR</filename> does not need to be increased
-                        for changes that do not change the package contents or
-                        metadata.
-                    </note>
-                    Because manually managing <filename>PR</filename> can be
-                    cumbersome and error-prone, an automated solution exists.
-                    See the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#working-with-a-pr-service'>Working With a PR Service</ulink>"
-                    section in the Yocto Project Development Tasks Manual
-                    for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PREFERRED_PROVIDER'><glossterm>PREFERRED_PROVIDER</glossterm>
-            <info>
-                PREFERRED_PROVIDER[doc] = "If multiple recipes provide an item, this variable determines which recipe should be given preference."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    If multiple recipes provide the same item, this variable
-                    determines which recipe is preferred and thus provides
-                    the item (i.e. the preferred provider).
-                    You should always suffix this variable with the name of the
-                    provided item.
-                    And, you should define the variable using the preferred
-                    recipe's name
-                    (<link linkend='var-PN'><filename>PN</filename></link>).
-                    Here is a common example:
-                    <literallayout class='monospaced'>
-     PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
-                    </literallayout>
-                    In the previous example, multiple recipes are providing
-                    "virtual/kernel".
-                    The <filename>PREFERRED_PROVIDER</filename> variable is
-                    set with the name (<filename>PN</filename>) of the recipe
-                    you prefer to provide "virtual/kernel".
-                </para>
-
-                <para>
-                    Following are more examples:
-                    <literallayout class='monospaced'>
-     PREFERRED_PROVIDER_virtual/xserver = "xserver-xf86"
-     PREFERRED_PROVIDER_virtual/libgl ?= "mesa"
-                    </literallayout>
-                    For more information, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#metadata-virtual-providers'>Using Virtual Providers</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    <note>
-                        If you use a <filename>virtual/*</filename> item
-                        with <filename>PREFERRED_PROVIDER</filename>, then any
-                        recipe that
-                        <link linkend='var-PROVIDES'><filename>PROVIDES</filename></link>
-                        that item but is not selected (defined) by
-                        <filename>PREFERRED_PROVIDER</filename> is prevented
-                        from building, which is usually desirable since this
-                        mechanism is designed to select between mutually
-                        exclusive alternative providers.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PREFERRED_VERSION'><glossterm>PREFERRED_VERSION</glossterm>
-            <info>
-                PREFERRED_VERSION[doc] = "If there are multiple versions of recipes available, this variable determines which recipe should be given preference."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    If multiple versions of recipes exist, this
-                    variable determines which version is given preference.
-                    You must always suffix the variable with the
-                    <link linkend='var-PN'><filename>PN</filename></link>
-                    you want to select, and you should set the
-                    <link linkend='var-PV'><filename>PV</filename></link>
-                    accordingly for precedence.
-                </para>
-
-                <para>
-                    The <filename>PREFERRED_VERSION</filename> variable
-                    supports limited wildcard use through the
-                    "<filename>%</filename>" character.
-                    You can use the character to match any number of
-                    characters, which can be useful when specifying versions
-                    that contain long revision numbers that potentially change.
-                    Here are two examples:
-                    <literallayout class='monospaced'>
-     PREFERRED_VERSION_python = "3.4.0"
-     PREFERRED_VERSION_linux-yocto = "5.0%"
-                    </literallayout>
-                    <note><title>Important</title>
-                        The use of the "<filename>%</filename>" character
-                        is limited in that it only works at the end of the
-                        string.
-                        You cannot use the wildcard character in any other
-                        location of the string.
-                    </note>
-                </para>
-
-                <para>
-                    The specified version is matched against
-                    <link linkend='var-PV'><filename>PV</filename></link>,
-                    which does not necessarily match the version part of
-                    the recipe's filename.
-                    For example, consider two recipes
-                    <filename>foo_1.2.bb</filename> and
-                    <filename>foo_git.bb</filename> where
-                    <filename>foo_git.bb</filename> contains the following
-                    assignment:
-                    <literallayout class='monospaced'>
-     PV = "1.1+git${SRCPV}"
-                    </literallayout>
-                    In this case, the correct way to select
-                    <filename>foo_git.bb</filename> is by using an
-                    assignment such as the following:
-                    <literallayout class='monospaced'>
-     PREFERRED_VERSION_foo = "1.1+git%"
-                    </literallayout>
-                    Compare that previous example against the following
-                    incorrect example, which does not work:
-                    <literallayout class='monospaced'>
-     PREFERRED_VERSION_foo = "git"
-                    </literallayout>
-                </para>
-
-                <para>
-                    Sometimes the <filename>PREFERRED_VERSION</filename>
-                    variable can be set by configuration files in a way that
-                    is hard to change.
-                    You can use
-                    <link linkend='var-OVERRIDES'><filename>OVERRIDES</filename></link>
-                    to set a machine-specific override.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     PREFERRED_VERSION_linux-yocto_qemux86 = "5.0%"
-                    </literallayout>
-                    Although not recommended, worst case, you can also use the
-                    "forcevariable" override, which is the strongest override
-                    possible.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     PREFERRED_VERSION_linux-yocto_forcevariable = "5.0%"
-                    </literallayout>
-                    <note>
-                        The <filename>_forcevariable</filename> override is
-                        not handled specially.
-                        This override only works because the default value of
-                        <filename>OVERRIDES</filename> includes
-                        "forcevariable".
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PREMIRRORS'><glossterm>PREMIRRORS</glossterm>
-            <info>
-                PREMIRRORS[doc] = "Specifies additional paths from which the OpenEmbedded build system gets source code."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies additional paths from which the OpenEmbedded
-                    build system gets source code.
-                    When the build system searches for source code, it first
-                    tries the local download directory.
-                    If that location fails, the build system tries locations
-                    defined by <filename>PREMIRRORS</filename>, the upstream
-                    source, and then locations specified by
-                    <link linkend='var-MIRRORS'><filename>MIRRORS</filename></link>
-                    in that order.
-                </para>
-
-                <para>
-                    Assuming your distribution
-                    (<link linkend='var-DISTRO'><filename>DISTRO</filename></link>)
-                    is "poky", the default value for
-                    <filename>PREMIRRORS</filename> is defined in the
-                    <filename>conf/distro/poky.conf</filename> file in the
-                    <filename>meta-poky</filename> Git repository.
-                </para>
-
-                <para>
-                    Typically, you could add a specific server for the
-                    build system to attempt before any others by adding
-                    something like the following to the
-                    <filename>local.conf</filename> configuration file in the
-                    <link linkend='build-directory'>Build Directory</link>:
-                    <literallayout class='monospaced'>
-     PREMIRRORS_prepend = "\
-     git://.*/.* http://www.yoctoproject.org/sources/ \n \
-     ftp://.*/.* http://www.yoctoproject.org/sources/ \n \
-     http://.*/.* http://www.yoctoproject.org/sources/ \n \
-     https://.*/.* http://www.yoctoproject.org/sources/ \n"
-                    </literallayout>
-                    These changes cause the build system to intercept
-                    Git, FTP, HTTP, and HTTPS requests and direct them to
-                    the <filename>http://</filename> sources mirror.
-                    You can use <filename>file://</filename> URLs to point
-                    to local directories or network shares as well.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PRIORITY'><glossterm>PRIORITY</glossterm>
-            <info>
-                PRIORITY[doc] = "Indicates the importance of a package.  The default value is 'optional'.  Other standard values are 'required', 'standard', and 'extra'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Indicates the importance of a package.
-                </para>
-
-                <para>
-                    <filename>PRIORITY</filename> is considered to be part of
-                    the distribution policy because the importance of any given
-                    recipe depends on the purpose for which the distribution
-                    is being produced.
-                    Thus, <filename>PRIORITY</filename> is not normally set
-                    within recipes.
-                </para>
-
-                <para>
-                    You can set <filename>PRIORITY</filename> to "required",
-                    "standard", "extra", and "optional", which is the default.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PRIVATE_LIBS'><glossterm>PRIVATE_LIBS</glossterm>
-            <info>
-                PRIVATE_LIBS[doc] = "Specifies libraries installed within a recipe that should be ignored by the OpenEmbedded build system's shared library resolver."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies libraries installed within a recipe that
-                    should be ignored by the OpenEmbedded build system's
-                    shared library resolver.
-                    This variable is typically used when software being
-                    built by a recipe has its own private versions of a
-                    library normally provided by another recipe.
-                    In this case, you would not want the package containing
-                    the private libraries to be set as a dependency on other
-                    unrelated packages that should instead depend on the
-                    package providing the standard version of the library.
-                </para>
-
-                <para>
-                    Libraries specified in this variable should be specified
-                    by their file name.
-                    For example, from the Firefox recipe in meta-browser:
-                    <literallayout class='monospaced'>
-     PRIVATE_LIBS = "libmozjs.so \
-                     libxpcom.so \
-                     libnspr4.so \
-                     libxul.so \
-                     libmozalloc.so \
-                     libplc4.so \
-                     libplds4.so"
-                    </literallayout>
-                </para>
-
-                <para>
-                    For more information, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#automatically-added-runtime-dependencies'>Automatically Added Runtime Dependencies</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PROVIDES'><glossterm>PROVIDES</glossterm>
-            <info>
-                PROVIDES[doc] = "A list of aliases that a recipe also provides. These aliases are useful for satisfying dependencies of other recipes during the build as specified by DEPENDS."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of aliases by which a particular recipe can be
-                    known.
-                    By default, a recipe's own
-                    <filename><link linkend='var-PN'>PN</link></filename>
-                    is implicitly already in its <filename>PROVIDES</filename>
-                    list and therefore does not need to mention that it provides itself.
-                    If a recipe uses <filename>PROVIDES</filename>, the
-                    additional aliases are synonyms for the recipe and can
-                    be useful for satisfying dependencies of other recipes during
-                    the build as specified by
-                    <filename><link linkend='var-DEPENDS'>DEPENDS</link></filename>.
-                </para>
-
-                <para>
-                    Consider the following example
-                    <filename>PROVIDES</filename> statement from the recipe
-                    file <filename>eudev_3.2.9.bb</filename>:
-                    <literallayout class='monospaced'>
-     PROVIDES = "udev"
-                    </literallayout>
-                    The <filename>PROVIDES</filename> statement results in
-                    the "eudev" recipe also being available as simply "udev".
-
-                    <note>
-                        Given that a recipe's own recipe name is already
-                        implicitly in its own <filename>PROVIDES</filename> list,
-                        it is unnecessary to add aliases with the "+=" operator;
-                        using a simple assignment will be sufficient. In other
-                        words, while you could write:
-                        <literallayout class='monospaced'>
-     PROVIDES += "udev"
-                        </literallayout>
-                        in the above, the "+=" is overkill and unnecessary.
-                    </note>
-                </para>
-
-                <para>
-                    In addition to providing recipes under alternate names,
-                    the <filename>PROVIDES</filename> mechanism is also used
-                    to implement virtual targets.
-                    A virtual target is a name that corresponds to some
-                    particular functionality (e.g. a Linux kernel).
-                    Recipes that provide the functionality in question list the
-                    virtual target in <filename>PROVIDES</filename>.
-                    Recipes that depend on the functionality in question can
-                    include the virtual target in <filename>DEPENDS</filename>
-                    to leave the choice of provider open.
-                </para>
-
-                <para>
-                    Conventionally, virtual targets have names on the form
-                    "virtual/function" (e.g. "virtual/kernel").
-                    The slash is simply part of the name and has no
-                    syntactical significance.
-                </para>
-
-                <para>
-                    The
-                    <link linkend='var-PREFERRED_PROVIDER'><filename>PREFERRED_PROVIDER</filename></link>
-                    variable is used to select which particular recipe
-                    provides a virtual target.
-                    <note>
-                        <para>A corresponding mechanism for virtual runtime
-                        dependencies (packages) exists.
-                        However, the mechanism does not depend on any special
-                        functionality beyond ordinary variable assignments.
-                        For example,
-                        <filename>VIRTUAL-RUNTIME_dev_manager</filename>
-                        refers to the package of the component that manages
-                        the <filename>/dev</filename> directory.</para>
-
-                        <para>Setting the "preferred provider" for runtime
-                        dependencies is as simple as using the following
-                        assignment in a configuration file:</para>
-                        <literallayout class='monospaced'>
-     VIRTUAL-RUNTIME_dev_manager = "udev"
-                        </literallayout>
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PRSERV_HOST'><glossterm>PRSERV_HOST</glossterm>
-            <info>
-                PRSERV_HOST[doc] = "The network based PR service host and port."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The network based
-                    <link linkend='var-PR'><filename>PR</filename></link>
-                    service host and port.
-                </para>
-
-                <para>
-                    The <filename>conf/local.conf.sample.extended</filename>
-                    configuration file in the
-                    <link linkend='source-directory'>Source Directory</link>
-                    shows how the <filename>PRSERV_HOST</filename> variable is
-                    set:
-                    <literallayout class='monospaced'>
-     PRSERV_HOST = "localhost:0"
-                    </literallayout>
-                    You must set the variable if you want to automatically
-                    start a local
-                    <ulink url='&YOCTO_DOCS_DEV_URL;#working-with-a-pr-service'>PR service</ulink>.
-                    You can set <filename>PRSERV_HOST</filename> to other
-                    values to use a remote PR service.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PTEST_ENABLED'><glossterm>PTEST_ENABLED</glossterm>
-            <info>
-                PRSERV_HOST[doc] = "Specifies whether or not Package Test (ptest) functionality is enabled when building a recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies whether or not
-                    <ulink url='&YOCTO_DOCS_DEV_URL;#testing-packages-with-ptest'>Package Test</ulink>
-                    (ptest) functionality is enabled when building a recipe.
-                    You should not set this variable directly.
-                    Enabling and disabling building Package Tests
-                    at build time should be done by adding "ptest" to (or
-                    removing it from)
-                    <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>.
-                 </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PV'><glossterm>PV</glossterm>
-            <info>
-                PV[doc] = "The version of the recipe. The version is normally extracted from the recipe filename."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The version of the recipe.
-                    The version is normally extracted from the recipe filename.
-                    For example, if the recipe is named
-                    <filename>expat_2.0.1.bb</filename>, then the default value
-                    of <filename>PV</filename> will be "2.0.1".
-                    <filename>PV</filename> is generally not overridden within
-                    a recipe unless it is building an unstable (i.e.
-                    development) version from a source code repository
-                    (e.g. Git or Subversion).
-                 </para>
-
-                 <para>
-                     <filename>PV</filename> is the default value of the
-                     <link linkend='var-PKGV'><filename>PKGV</filename></link>
-                     variable.
-                 </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PYTHON_ABI'><glossterm>PYTHON_ABI</glossterm>
-            <info>
-                PYTHON_ABI[doc] = "When used by recipes that inherit the distutils3, setuptools3, distutils, or setuptools classes, denotes the Application Binary Interface (ABI) currently in use for Python."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When used by recipes that inherit the
-                    <link linkend='ref-classes-distutils3'><filename>distutils3</filename></link>,
-                    <link linkend='ref-classes-setuptools3'><filename>setuptools3</filename></link>,
-                    <link linkend='ref-classes-distutils'><filename>distutils</filename></link>,
-                    or
-                    <link linkend='ref-classes-setuptools'><filename>setuptools</filename></link>
-                    classes, denotes the Application Binary Interface (ABI)
-                    currently in use for Python.
-                    By default, the ABI is "m".
-                    You do not have to set this variable as the OpenEmbedded
-                    build system sets it for you.
-                </para>
-
-                <para>
-                    The OpenEmbedded build system uses the ABI to construct
-                    directory names used when installing the Python headers
-                    and libraries in sysroot
-                    (e.g. <filename>.../python3.3m/...</filename>).
-                </para>
-
-                <para>
-                    Recipes that inherit the <filename>distutils</filename>
-                    class during cross-builds also use this variable to
-                    locate the headers and libraries of the appropriate Python
-                    that the extension is targeting.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-PYTHON_PN'><glossterm>PYTHON_PN</glossterm>
-            <info>
-                PYTHON_PN[doc] = "When used by recipes that inherit the distutils3, setuptools3, distutils, or setuptools classes, specifies the major Python version being built."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When used by recipes that inherit the
-                    <link linkend='ref-classes-distutils3'><filename>distutils3</filename></link>,
-                    <link linkend='ref-classes-setuptools3'><filename>setuptools3</filename></link>,
-                    <link linkend='ref-classes-distutils'><filename>distutils</filename></link>,
-                    or
-                    <link linkend='ref-classes-setuptools'><filename>setuptools</filename></link>
-                    classes, specifies the major Python version being built.
-                    For Python 3.x, <filename>PYTHON_PN</filename> would be
-                    "python3".
-                    You do not have to set this variable as the
-                    OpenEmbedded build system automatically sets it for you.
-                </para>
-
-                <para>
-                    The variable allows recipes to use common infrastructure
-                    such as the following:
-                    <literallayout class='monospaced'>
-     DEPENDS += "${PYTHON_PN}-native"
-                    </literallayout>
-                    In the previous example, the version of the dependency
-                    is <filename>PYTHON_PN</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-r'><title>R</title>
-
-        <glossentry id='var-RANLIB'><glossterm>RANLIB</glossterm>
-            <info>
-                RANLIB[doc] = "Minimal command and arguments to run 'ranlib'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The minimal command and arguments to run
-                    <filename>ranlib</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-RCONFLICTS'><glossterm>RCONFLICTS</glossterm>
-            <info>
-                RCONFLICTS[doc] = "The list of packages that conflict with another package. Note that the package will not be installed if the conflicting packages are not first removed."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The list of packages that conflict with packages.
-                    Note that packages will not be installed if conflicting
-                    packages are not first removed.
-                </para>
-
-                <para>
-                   Like all package-controlling variables, you must always use
-                   them in conjunction with a package name override.
-                   Here is an example:
-                   <literallayout class='monospaced'>
-     RCONFLICTS_${PN} = "<replaceable>another_conflicting_package_name</replaceable>"
-                   </literallayout>
-                </para>
-
-                <para>
-                    BitBake, which the OpenEmbedded build system uses, supports
-                    specifying versioned dependencies.
-                    Although the syntax varies depending on the packaging
-                    format, BitBake hides these differences from you.
-                    Here is the general syntax to specify versions with
-                    the <filename>RCONFLICTS</filename> variable:
-                    <literallayout class='monospaced'>
-     RCONFLICTS_${PN} = "<replaceable>package</replaceable> (<replaceable>operator</replaceable> <replaceable>version</replaceable>)"
-                    </literallayout>
-                    For <filename>operator</filename>, you can specify the
-                    following:
-                    <literallayout class='monospaced'>
-     =
-     &lt;
-     &gt;
-     &lt;=
-     &gt;=
-                    </literallayout>
-                    For example, the following sets up a dependency on version
-                    1.2 or greater of the package <filename>foo</filename>:
-                    <literallayout class='monospaced'>
-     RCONFLICTS_${PN} = "foo (>= 1.2)"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-RDEPENDS'><glossterm>RDEPENDS</glossterm>
-            <info>
-                RDEPENDS[doc] = "Lists runtime dependencies of a package."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists runtime dependencies of a package.
-                    These dependencies are other packages that must be
-                    installed in order for the package to function correctly.
-                    As an example, the following assignment declares that the
-                    package <filename>foo</filename> needs the packages
-                    <filename>bar</filename> and <filename>baz</filename> to
-                    be installed:
-                    <literallayout class='monospaced'>
-     RDEPENDS_foo = "bar baz"
-                    </literallayout>
-                    The most common types of package runtime dependencies are
-                    automatically detected and added.
-                    Therefore, most recipes do not need to set
-                    <filename>RDEPENDS</filename>.
-                    For more information, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#automatically-added-runtime-dependencies'>Automatically Added Runtime Dependencies</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual.
-                </para>
-
-                <para>
-                    The practical effect of the above
-                    <filename>RDEPENDS</filename> assignment is that
-                    <filename>bar</filename> and <filename>baz</filename>
-                    will be declared as dependencies inside the package
-                    <filename>foo</filename> when it is written out by one of
-                    the
-                    <link linkend='ref-tasks-package_write_deb'><filename>do_package_write_*</filename></link>
-                    tasks.
-                    Exactly how this is done depends on which package format
-                    is used, which is determined by
-                    <link linkend='var-PACKAGE_CLASSES'><filename>PACKAGE_CLASSES</filename></link>.
-                    When the corresponding package manager installs the
-                    package, it will know to also install the packages on
-                    which it depends.
-                </para>
-
-                <para>
-                    To ensure that the packages <filename>bar</filename> and
-                    <filename>baz</filename> get built, the previous
-                    <filename>RDEPENDS</filename> assignment also causes a task
-                    dependency to be added.
-                    This dependency is from the recipe's
-                    <link linkend='ref-tasks-build'><filename>do_build</filename></link>
-                    (not to be confused with
-                    <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>)
-                    task to the <filename>do_package_write_*</filename>
-                    task of the recipes that build <filename>bar</filename> and
-                    <filename>baz</filename>.
-                </para>
-
-                <para>
-                    The names of the packages you list within
-                    <filename>RDEPENDS</filename> must be the names of other
-                    packages - they cannot be recipe names.
-                    Although package names and recipe names usually match,
-                    the important point here is that you are
-                    providing package names within the
-                    <filename>RDEPENDS</filename> variable.
-                    For an example of the default list of packages created from
-                    a recipe, see the
-                    <link linkend='var-PACKAGES'><filename>PACKAGES</filename></link>
-                    variable.
-                </para>
-
-                <para>
-                    Because the <filename>RDEPENDS</filename> variable applies
-                    to packages being built, you should always use the variable
-                    in a form with an attached package name (remember that a
-                    single recipe can build multiple packages).
-                    For example, suppose you are building a development package
-                    that depends on the <filename>perl</filename> package.
-                    In this case, you would use the following
-                    <filename>RDEPENDS</filename> statement:
-                    <literallayout class='monospaced'>
-     RDEPENDS_${PN}-dev += "perl"
-                    </literallayout>
-                    In the example, the development package depends on
-                    the <filename>perl</filename> package.
-                    Thus, the <filename>RDEPENDS</filename> variable has the
-                    <filename>${PN}-dev</filename> package name as part of the
-                    variable.
-                    <note>
-                        <title>Caution</title>
-                        <filename>RDEPENDS_${PN}-dev</filename> includes
-                        <filename>${</filename><link linkend='var-PN'><filename>PN</filename></link><filename>}</filename>
-                        by default.
-                        This default is set in the BitBake configuration file
-                        (<filename>meta/conf/bitbake.conf</filename>).
-                        Be careful not to accidentally remove
-                        <filename>${PN}</filename> when modifying
-                        <filename>RDEPENDS_${PN}-dev</filename>.
-                        Use the "+=" operator rather than the "=" operator.
-                    </note>
-                </para>
-
-                <para>
-                    The package names you use with
-                    <filename>RDEPENDS</filename> must appear as they would in
-                    the <filename>PACKAGES</filename> variable.
-                    The
-                    <link linkend='var-PKG'><filename>PKG</filename></link>
-                    variable allows a different name to be used for
-                    the final package (e.g. the
-                    <link linkend='ref-classes-debian'><filename>debian</filename></link>
-                    class uses this to rename packages), but this final package
-                    name cannot be used with <filename>RDEPENDS</filename>,
-                    which makes sense as <filename>RDEPENDS</filename> is meant
-                    to be independent of the package format used.
-                </para>
-
-                <para>
-                    BitBake, which the OpenEmbedded build system uses, supports
-                    specifying versioned dependencies.
-                    Although the syntax varies depending on the packaging
-                    format, BitBake hides these differences from you.
-                    Here is the general syntax to specify versions with
-                    the <filename>RDEPENDS</filename> variable:
-                    <literallayout class='monospaced'>
-     RDEPENDS_${PN} = "<replaceable>package</replaceable> (<replaceable>operator</replaceable> <replaceable>version</replaceable>)"
-                    </literallayout>
-                    For <replaceable>operator</replaceable>, you can specify the
-                    following:
-                    <literallayout class='monospaced'>
-     =
-     &lt;
-     &gt;
-     &lt;=
-     &gt;=
-                    </literallayout>
-                    For <replaceable>version</replaceable>, provide the version
-                    number.
-                    <note><title>Tip</title>
-                        You can use
-                        <link linkend='var-EXTENDPKGV'><filename>EXTENDPKGV</filename></link>
-                        to provide a full package version specification.
-                    </note>
-                    For example, the following sets up a dependency on version
-                    1.2 or greater of the package <filename>foo</filename>:
-                    <literallayout class='monospaced'>
-     RDEPENDS_${PN} = "foo (>= 1.2)"
-                    </literallayout>
-                </para>
-
-                <para>
-                    For information on build-time dependencies, see the
-                    <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>
-                    variable.
-                    You can also see the
-                    "<ulink url='&YOCTO_DOCS_BB_URL;#tasks'>Tasks</ulink>" and
-                    "<ulink url='&YOCTO_DOCS_BB_URL;#dependencies'>Dependencies</ulink>"
-                    sections in the BitBake User Manual for additional
-                    information on tasks and dependencies.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-REQUIRED_DISTRO_FEATURES'><glossterm>REQUIRED_DISTRO_FEATURES</glossterm>
-            <info>
-                REQUIRED_DISTRO_FEATURES[doc] = "When a recipe inherits the distro_features_check class, this variable identifies distribution features that must exist in the current configuration in order for the OpenEmbedded build system to build the recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-distro_features_check'><filename>distro_features_check</filename></link>
-                    class, this
-                    variable identifies distribution features that must
-                    exist in the current configuration in order for the
-                    OpenEmbedded build system to build the recipe.
-                    In other words, if the
-                    <filename>REQUIRED_DISTRO_FEATURES</filename> variable
-                    lists a feature that does not appear in
-                    <filename>DISTRO_FEATURES</filename> within the
-                    current configuration, an error occurs and the
-                    build stops.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-RM_WORK_EXCLUDE'><glossterm>RM_WORK_EXCLUDE</glossterm>
-            <info>
-                RM_WORK_EXCLUDE[doc] = "With rm_work enabled, this variable specifies a list of packages whose work directories should not be removed."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    With <filename>rm_work</filename> enabled, this
-                    variable specifies a list of recipes whose work directories
-                    should not be removed.
-                    See the "<link linkend='ref-classes-rm-work'><filename>rm_work.bbclass</filename></link>"
-                    section for more details.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ROOT_HOME'><glossterm>ROOT_HOME</glossterm>
-            <info>
-                ROOT_HOME[doc] = "Defines the root home directory."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines the root home directory.
-                    By default, this directory is set as follows in the
-                    BitBake configuration file:
-                    <literallayout class='monospaced'>
-     ROOT_HOME ??= "/home/root"
-                    </literallayout>
-                    <note>
-                        This default value is likely used because some
-                        embedded solutions prefer to have a read-only root
-                        filesystem and prefer to keep writeable data in one
-                        place.
-                    </note>
-                </para>
-
-                <para>
-                    You can override the default by setting the variable
-                    in any layer or in the <filename>local.conf</filename> file.
-                    Because the default is set using a "weak" assignment
-                    (i.e. "??="), you can use either of the following forms
-                    to define your override:
-                    <literallayout class='monospaced'>
-     ROOT_HOME = "/root"
-     ROOT_HOME ?= "/root"
-                    </literallayout>
-                    These override examples use <filename>/root</filename>,
-                    which is probably the most commonly used override.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ROOTFS'><glossterm>ROOTFS</glossterm>
-            <info>
-                ROOTFS[doc] = "Indicates a filesystem image to include as the root filesystem."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Indicates a filesystem image to include as the root
-                    filesystem.
-                </para>
-
-                <para>
-                    The <filename>ROOTFS</filename> variable is an optional
-                    variable used with the
-                    <link linkend='ref-classes-image-live'><filename>image-live</filename></link>
-                    class.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ROOTFS_POSTINSTALL_COMMAND'><glossterm>ROOTFS_POSTINSTALL_COMMAND</glossterm>
-            <info>
-                ROOTFS_POSTINSTALL_COMMAND[doc] = "Specifies a list of functions to call after installing packages."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of functions to call after the
-                    OpenEmbedded build system has installed packages.
-                    You can specify functions separated by semicolons:
-                    <literallayout class='monospaced'>
-     ROOTFS_POSTINSTALL_COMMAND += "<replaceable>function</replaceable>; ... "
-                    </literallayout>
-                </para>
-
-                <para>
-                    If you need to pass the root filesystem path to a command
-                    within a function, you can use
-                    <filename>${IMAGE_ROOTFS}</filename>, which points to
-                    the directory that becomes the root filesystem image.
-                    See the
-                    <link linkend='var-IMAGE_ROOTFS'><filename>IMAGE_ROOTFS</filename></link>
-                    variable for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ROOTFS_POSTPROCESS_COMMAND'><glossterm>ROOTFS_POSTPROCESS_COMMAND</glossterm>
-            <info>
-                ROOTFS_POSTPROCESS_COMMAND[doc] = "Specifies a list of functions to call once the OpenEmbedded build system has created the root filesystem."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of functions to call once the
-                    OpenEmbedded build system has created the root filesystem.
-                    You can specify functions separated by semicolons:
-                    <literallayout class='monospaced'>
-     ROOTFS_POSTPROCESS_COMMAND += "<replaceable>function</replaceable>; ... "
-                    </literallayout>
-                </para>
-
-                <para>
-                    If you need to pass the root filesystem path to a command
-                    within a function, you can use
-                    <filename>${IMAGE_ROOTFS}</filename>, which points to
-                    the directory that becomes the root filesystem image.
-                    See the
-                    <link linkend='var-IMAGE_ROOTFS'><filename>IMAGE_ROOTFS</filename></link>
-                    variable for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ROOTFS_POSTUNINSTALL_COMMAND'><glossterm>ROOTFS_POSTUNINSTALL_COMMAND</glossterm>
-            <info>
-                ROOTFS_POSTUNINSTALL_COMMAND[doc] = "Specifies a list of functions to call after removal of unneeded packages."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of functions to call after the
-                    OpenEmbedded build system has removed unnecessary
-                    packages.
-                    When runtime package management is disabled in the
-                    image, several packages are removed including
-                    <filename>base-passwd</filename>,
-                    <filename>shadow</filename>, and
-                    <filename>update-alternatives</filename>.
-                    You can specify functions separated by semicolons:
-                    <literallayout class='monospaced'>
-     ROOTFS_POSTUNINSTALL_COMMAND += "<replaceable>function</replaceable>; ... "
-                    </literallayout>
-                </para>
-
-                <para>
-                    If you need to pass the root filesystem path to a command
-                    within a function, you can use
-                    <filename>${IMAGE_ROOTFS}</filename>, which points to
-                    the directory that becomes the root filesystem image.
-                    See the
-                    <link linkend='var-IMAGE_ROOTFS'><filename>IMAGE_ROOTFS</filename></link>
-                    variable for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-ROOTFS_PREPROCESS_COMMAND'><glossterm>ROOTFS_PREPROCESS_COMMAND</glossterm>
-            <info>
-                ROOTFS_PREPROCESS_COMMAND[doc] = "Specifies a list of functions to call before the OpenEmbedded build system has created the root filesystem."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of functions to call before the
-                    OpenEmbedded build system has created the root filesystem.
-                    You can specify functions separated by semicolons:
-                    <literallayout class='monospaced'>
-     ROOTFS_PREPROCESS_COMMAND += "<replaceable>function</replaceable>; ... "
-                    </literallayout>
-                </para>
-
-                <para>
-                    If you need to pass the root filesystem path to a command
-                    within a function, you can use
-                    <filename>${IMAGE_ROOTFS}</filename>, which points to
-                    the directory that becomes the root filesystem image.
-                    See the
-                    <link linkend='var-IMAGE_ROOTFS'><filename>IMAGE_ROOTFS</filename></link>
-                    variable for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-RPROVIDES'><glossterm>RPROVIDES</glossterm>
-            <info>
-                RPROVIDES[doc] = "A list of package name aliases that a package also provides. These aliases are useful for satisfying runtime dependencies of other packages both during the build and on the target."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of package name aliases that a package also provides.
-                    These aliases are useful for satisfying runtime dependencies
-                    of other packages both during the build and on the target
-                    (as specified by
-                    <filename><link linkend='var-RDEPENDS'>RDEPENDS</link></filename>).
-                    <note>
-                        A package's own name is implicitly already in its
-                        <filename>RPROVIDES</filename> list.
-                    </note>
-                </para>
-
-                <para>
-                   As with all package-controlling variables, you must always
-                   use the variable in conjunction with a package name override.
-                   Here is an example:
-                   <literallayout class='monospaced'>
-     RPROVIDES_${PN} = "widget-abi-2"
-                   </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-RRECOMMENDS'><glossterm>RRECOMMENDS</glossterm>
-            <info>
-                RRECOMMENDS[doc] = "A list of packages that extends the usability of a package being built. The package being built does not depend on this list of packages in order to successfully build, but needs them for the extended usability."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of packages that extends the usability of a package
-                    being built.
-                    The package being built does not depend on this list of
-                    packages in order to successfully build, but rather
-                    uses them for extended usability.
-                    To specify runtime dependencies for packages, see the
-                    <filename><link linkend='var-RDEPENDS'>RDEPENDS</link></filename>
-                    variable.
-                </para>
-
-                <para>
-                    The package manager will automatically install the
-                    <filename>RRECOMMENDS</filename> list of packages when
-                    installing the built package.
-                    However, you can prevent listed packages from being
-                    installed by using the
-                    <link linkend='var-BAD_RECOMMENDATIONS'><filename>BAD_RECOMMENDATIONS</filename></link>,
-                    <link linkend='var-NO_RECOMMENDATIONS'><filename>NO_RECOMMENDATIONS</filename></link>,
-                    and
-                    <link linkend='var-PACKAGE_EXCLUDE'><filename>PACKAGE_EXCLUDE</filename></link>
-                    variables.
-                </para>
-
-                <para>
-                    Packages specified in
-                    <filename>RRECOMMENDS</filename> need not actually be
-                    produced.
-                    However, a recipe must exist that provides each package,
-                    either through the
-                    <link linkend='var-PACKAGES'><filename>PACKAGES</filename></link>
-                    or
-                    <link linkend='var-PACKAGES_DYNAMIC'><filename>PACKAGES_DYNAMIC</filename></link>
-                    variables or the
-                    <link linkend='var-RPROVIDES'><filename>RPROVIDES</filename></link>
-                    variable, or an error will occur during the build.
-                    If such a recipe does exist and the package is not produced,
-                    the build continues without error.
-                </para>
-
-                <para>
-                    Because the <filename>RRECOMMENDS</filename> variable
-                    applies to packages being built, you should always attach
-                    an override to the variable to specify the particular
-                    package whose usability is being extended.
-                    For example, suppose you are building a development package
-                    that is extended to support wireless functionality.
-                    In this case, you would use the following:
-                    <literallayout class='monospaced'>
-     RRECOMMENDS_${PN}-dev += "<replaceable>wireless_package_name</replaceable>"
-                    </literallayout>
-                    In the example, the package name
-                    (<filename>${<link linkend='var-PN'>PN</link>}-dev</filename>)
-                    must appear as it would in the
-                    <filename>PACKAGES</filename> namespace before any renaming
-                    of the output package by classes such as
-                    <filename>debian.bbclass</filename>.
-                </para>
-
-                <para>
-                    BitBake, which the OpenEmbedded build system uses, supports
-                    specifying versioned recommends.
-                    Although the syntax varies depending on the packaging
-                    format, BitBake hides these differences from you.
-                    Here is the general syntax to specify versions with
-                    the <filename>RRECOMMENDS</filename> variable:
-                    <literallayout class='monospaced'>
-     RRECOMMENDS_${PN} = "<replaceable>package</replaceable> (<replaceable>operator</replaceable> <replaceable>version</replaceable>)"
-                    </literallayout>
-                    For <filename>operator</filename>, you can specify the
-                    following:
-                    <literallayout class='monospaced'>
-     =
-     &lt;
-     &gt;
-     &lt;=
-     &gt;=
-                    </literallayout>
-                    For example, the following sets up a recommend on version
-                    1.2 or greater of the package <filename>foo</filename>:
-                    <literallayout class='monospaced'>
-     RRECOMMENDS_${PN} = "foo (>= 1.2)"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-RREPLACES'><glossterm>RREPLACES</glossterm>
-            <info>
-                RREPLACES[doc] = "A list of packages replaced by a package. The package manager uses this variable to determine which package should be installed to replace other package(s) during an upgrade."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of packages replaced by a package.
-                    The package manager uses this variable to determine which
-                    package should be installed to replace other package(s)
-                    during an upgrade.
-                    In order to also have the other package(s) removed at the
-                    same time, you must add the name of the other
-                    package to the
-                    <filename><link linkend='var-RCONFLICTS'>RCONFLICTS</link></filename> variable.
-                </para>
-
-                <para>
-                   As with all package-controlling variables, you must use
-                   this variable in conjunction with a package name
-                   override.
-                   Here is an example:
-                   <literallayout class='monospaced'>
-     RREPLACES_${PN} = "<replaceable>other_package_being_replaced</replaceable>"
-                   </literallayout>
-                </para>
-
-                <para>
-                    BitBake, which the OpenEmbedded build system uses, supports
-                    specifying versioned replacements.
-                    Although the syntax varies depending on the packaging
-                    format, BitBake hides these differences from you.
-                    Here is the general syntax to specify versions with
-                    the <filename>RREPLACES</filename> variable:
-                    <literallayout class='monospaced'>
-     RREPLACES_${PN} = "<replaceable>package</replaceable> (<replaceable>operator</replaceable> <replaceable>version</replaceable>)"
-                    </literallayout>
-                    For <filename>operator</filename>, you can specify the
-                    following:
-                    <literallayout class='monospaced'>
-     =
-     &lt;
-     &gt;
-     &lt;=
-     &gt;=
-                    </literallayout>
-                    For example, the following sets up a replacement using
-                    version 1.2 or greater of the package
-                    <filename>foo</filename>:
-                    <literallayout class='monospaced'>
-     RREPLACES_${PN} = "foo (>= 1.2)"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-RSUGGESTS'><glossterm>RSUGGESTS</glossterm>
-            <info>
-                RSUGGESTS[doc] = "A list of additional packages that you can suggest for installation by the package manager at the time a package is installed. Not all package managers support this functionality."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of additional packages that you can suggest for
-                    installation by the package manager at the time a package
-                    is installed.
-                    Not all package managers support this functionality.
-                </para>
-
-                <para>
-                   As with all package-controlling variables, you must always
-                   use this variable in conjunction with a package name
-                   override.
-                   Here is an example:
-                   <literallayout class='monospaced'>
-     RSUGGESTS_${PN} = "<replaceable>useful_package</replaceable> <replaceable>another_package</replaceable>"
-                   </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-s'><title>S</title>
-
-        <glossentry id='var-S'><glossterm>S</glossterm>
-            <info>
-                S[doc] = "The location in the Build Directory where unpacked package source code resides."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The location in the
-                    <link linkend='build-directory'>Build Directory</link>
-                    where unpacked recipe source code resides.
-                    By default, this directory is
-                    <filename>${</filename><link linkend='var-WORKDIR'><filename>WORKDIR</filename></link><filename>}/${</filename><link linkend='var-BPN'><filename>BPN</filename></link><filename>}-${</filename><link linkend='var-PV'><filename>PV</filename></link><filename>}</filename>,
-                    where <filename>${BPN}</filename> is the base recipe name
-                    and <filename>${PV}</filename> is the recipe version.
-                    If the source tarball extracts the code to a directory
-                    named anything other than <filename>${BPN}-${PV}</filename>,
-                    or if the source code is fetched from an SCM such as
-                    Git or Subversion, then you must set <filename>S</filename>
-                    in the recipe so that the OpenEmbedded build system
-                    knows where to find the unpacked source.
-                </para>
-
-                <para>
-                    As an example, assume a
-                    <link linkend='source-directory'>Source Directory</link>
-                    top-level folder named <filename>poky</filename> and a
-                    default Build Directory at <filename>poky/build</filename>.
-                    In this case, the work directory the build system uses
-                    to keep the unpacked recipe for <filename>db</filename>
-                    is the following:
-                    <literallayout class='monospaced'>
-     poky/build/tmp/work/qemux86-poky-linux/db/5.1.19-r3/db-5.1.19
-                    </literallayout>
-                    The unpacked source code resides in the
-                    <filename>db-5.1.19</filename> folder.
-                </para>
-
-                <para>
-                    This next example assumes a Git repository.
-                    By default, Git repositories are cloned to
-                    <filename>${WORKDIR}/git</filename> during
-                    <link linkend='ref-tasks-fetch'><filename>do_fetch</filename></link>.
-                    Since this path is different from the default value of
-                    <filename>S</filename>, you must set it specifically
-                    so the source can be located:
-                    <literallayout class='monospaced'>
-     SRC_URI = "git://path/to/repo.git"
-     S = "${WORKDIR}/git"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SANITY_REQUIRED_UTILITIES'><glossterm>SANITY_REQUIRED_UTILITIES</glossterm>
-            <info>
-                SANITY_REQUIRED_UTILITIES[doc] = "Specifies a list of command-line utilities that should be checked for during the initial sanity checking process when running BitBake."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of command-line utilities that should be
-                    checked for during the initial sanity checking process when
-                    running BitBake.
-                    If any of the utilities are not installed on the build host,
-                    then BitBake immediately exits with an error.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SANITY_TESTED_DISTROS'><glossterm>SANITY_TESTED_DISTROS</glossterm>
-            <info>
-                SANITY_TESTED_DISTROS[doc] = "A list of the host distribution identifiers that the build system has been tested against."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of the host distribution identifiers that the
-                    build system has been tested against.
-                    Identifiers consist of the host distributor ID
-                    followed by the release,
-                    as reported by the <filename>lsb_release</filename> tool
-                    or as read from <filename>/etc/lsb-release</filename>.
-                    Separate the list items with explicit newline
-                    characters (<filename>\n</filename>).
-                    If <filename>SANITY_TESTED_DISTROS</filename> is not empty
-                    and the current value of
-                    <link linkend='var-NATIVELSBSTRING'><filename>NATIVELSBSTRING</filename></link>
-                    does not appear in the list, then the build system reports
-                    a warning that indicates the current host distribution has
-                    not been tested as a build host.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_ARCH'><glossterm>SDK_ARCH</glossterm>
-            <info>
-                SDK_ARCH[doc] = "The target architecture for the SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The target architecture for the SDK.
-                    Typically, you do not directly set this variable.
-                    Instead, use
-                    <link linkend='var-SDKMACHINE'><filename>SDKMACHINE</filename></link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_DEPLOY'><glossterm>SDK_DEPLOY</glossterm>
-            <info>
-                SDK_DEPLOY[doc] = "The directory set up and used by the populate_sdk_base to which the SDK is deployed."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The directory set up and used by the
-                    <link linkend='ref-classes-populate-sdk'><filename>populate_sdk_base</filename></link>
-                    class to which the SDK is deployed.
-                    The <filename>populate_sdk_base</filename> class defines
-                    <filename>SDK_DEPLOY</filename> as follows:
-                    <literallayout class='monospaced'>
-     SDK_DEPLOY = "${TMPDIR}/deploy/sdk"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_DIR'><glossterm>SDK_DIR</glossterm>
-            <info>
-                SDK_DIR[doc] = "The parent directory used by the OpenEmbedded build system when creating SDK output."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The parent directory used by the OpenEmbedded build system
-                    when creating SDK output.
-                    The
-                    <link linkend='ref-classes-populate-sdk-*'><filename>populate_sdk_base</filename></link>
-                    class defines the variable as follows:
-                    <literallayout class='monospaced'>
-     SDK_DIR = "${WORKDIR}/sdk"
-                    </literallayout>
-                    <note>
-                        The <filename>SDK_DIR</filename> directory is a
-                        temporary directory as it is part of
-                        <filename>WORKDIR</filename>.
-                        The final output directory is
-                        <link linkend='var-SDK_DEPLOY'><filename>SDK_DEPLOY</filename></link>.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_EXT_TYPE'><glossterm>SDK_EXT_TYPE</glossterm>
-            <info>
-                SDK_EXT_TYPE[doc] = "Controls whether or not shared state artifacts are copied into the extensible SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Controls whether or not shared state artifacts are copied
-                    into the extensible SDK.
-                    The default value of "full" copies all of the required
-                    shared state artifacts into the extensible SDK.
-                    The value "minimal" leaves these artifacts out of the
-                    SDK.
-                    <note>
-                        If you set the variable to "minimal", you need to
-                        ensure
-                        <link linkend='var-SSTATE_MIRRORS'><filename>SSTATE_MIRRORS</filename></link>
-                        is set in the SDK's configuration to enable the
-                        artifacts to be fetched as needed.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_HOST_MANIFEST'><glossterm>SDK_HOST_MANIFEST</glossterm>
-            <info>
-                SDK_HOST_MANIFEST[doc] = "The manifest file for the host part of the SDK. This file lists all the installed packages that make up the host part of the SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The manifest file for the host part of the SDK.
-                    This file lists all the installed packages that make up
-                    the host part of the SDK.
-                    The file contains package information on a line-per-package
-                    basis as follows:
-                    <literallayout class='monospaced'>
-     <replaceable>packagename</replaceable> <replaceable>packagearch</replaceable> <replaceable>version</replaceable>
-                    </literallayout>
-                </para>
-
-                <para>
-                    The
-                    <link linkend='ref-classes-populate-sdk-*'><filename>populate_sdk_base</filename></link>
-                    class defines the manifest file as follows:
-                    <literallayout class='monospaced'>
-     SDK_HOST_MANIFEST = "${SDK_DEPLOY}/${TOOLCHAIN_OUTPUTNAME}.host.manifest"
-                    </literallayout>
-                    The location is derived using the
-                    <link linkend='var-SDK_DEPLOY'><filename>SDK_DEPLOY</filename></link>
-                    and
-                    <link linkend='var-TOOLCHAIN_OUTPUTNAME'><filename>TOOLCHAIN_OUTPUTNAME</filename></link>
-                    variables.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_INCLUDE_PKGDATA'><glossterm>SDK_INCLUDE_PKGDATA</glossterm>
-            <info>
-                SDK_INCLUDE_PKGDATA[doc] = "When set to "1", specifies to include the packagedata for all recipes in the "world" target in the extensible SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When set to "1", specifies to include the packagedata for
-                    all recipes in the "world" target in the extensible SDK.
-                    Including this data allows the
-                    <filename>devtool search</filename> command to find these
-                    recipes in search results, as well as allows the
-                    <filename>devtool add</filename> command to map
-                    dependencies more effectively.
-                    <note>
-                        Enabling the <filename>SDK_INCLUDE_PKGDATA</filename>
-                        variable significantly increases build time because
-                        all of world needs to be built.
-                        Enabling the variable also slightly increases the size
-                        of the extensible SDK.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_INCLUDE_TOOLCHAIN'><glossterm>SDK_INCLUDE_TOOLCHAIN</glossterm>
-            <info>
-                SDK_INCLUDE_TOOLCHAIN[doc] = "When set to "1", specifies to include the toolchain in the extensible SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When set to "1", specifies to include the toolchain in the
-                    extensible SDK.
-                    Including the toolchain is useful particularly when
-                    <link linkend='var-SDK_EXT_TYPE'><filename>SDK_EXT_TYPE</filename></link>
-                    is set to "minimal" to keep the SDK reasonably small
-                    but you still want to provide a usable toolchain.
-                    For example, suppose you want to use the toolchain from an
-                    IDE or from other tools and you do not
-                    want to perform additional steps to install the toolchain.
-                </para>
-
-                <para>
-                    The <filename>SDK_INCLUDE_TOOLCHAIN</filename> variable
-                    defaults to "0" if <filename>SDK_EXT_TYPE</filename>
-                    is set to "minimal", and defaults to "1" if
-                    <filename>SDK_EXT_TYPE</filename> is set to "full".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_INHERIT_BLACKLIST'><glossterm>SDK_INHERIT_BLACKLIST</glossterm>
-            <info>
-                SDK_INHERIT_BLACKLIST[doc] = "A list of classes to remove from the INHERIT value globally within the extensible SDK configuration."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of classes to remove from the
-                    <link linkend='var-INHERIT'><filename>INHERIT</filename></link>
-                    value globally within the extensible SDK configuration.
-                    The
-                    <link linkend='ref-classes-populate-sdk-*'><filename>populate-sdk-ext</filename></link>
-                    class sets the default value:
-                    <literallayout class='monospaced'>
-     SDK_INHERIT_BLACKLIST ?= "buildhistory icecc"
-                    </literallayout>
-                </para>
-
-                <para>
-                    Some classes are not generally applicable within
-                    the extensible SDK context.
-                    You can use this variable to disable those classes.
-                </para>
-
-                <para>
-                    For additional information on how to customize the
-                    extensible SDK's configuration, see the
-                    "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-configuring-the-extensible-sdk'>Configuring the Extensible SDK</ulink>"
-                    section in the Yocto Project Application Development and
-                    the Extensible Software Development Kit (eSDK) manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_LOCAL_CONF_BLACKLIST'><glossterm>SDK_LOCAL_CONF_BLACKLIST</glossterm>
-            <info>
-                SDK_LOCAL_CONF_BLACKLIST[doc] = "A list of variables not allowed through from the build system configuration into the extensible SDK configuration."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of variables not allowed through from the
-                    OpenEmbedded build system configuration into the extensible
-                    SDK configuration.
-                    Usually, these are variables that are specific to the
-                    machine on which the build system is running and thus
-                    would be potentially problematic within the extensible SDK.
-                    </para>
-
-                    <para>By default,
-                    <filename>SDK_LOCAL_CONF_BLACKLIST</filename> is set in the
-                    <link linkend='ref-classes-populate-sdk-*'><filename>populate-sdk-ext</filename></link>
-                    class and excludes the following variables:
-                    <literallayout class='monospaced'>
-     <link linkend='var-CONF_VERSION'>CONF_VERSION</link>
-     <link linkend='var-BB_NUMBER_THREADS'>BB_NUMBER_THREADS</link>
-     <ulink url='&YOCTO_DOCS_BB_URL;#var-BB_NUMBER_PARSE_THREADS'>BB_NUMBER_PARSE_THREADS</ulink>
-     <link linkend='var-PARALLEL_MAKE'>PARALLEL_MAKE</link>
-     <link linkend='var-PRSERV_HOST'>PRSERV_HOST</link>
-     <link linkend='var-SSTATE_MIRRORS'>SSTATE_MIRRORS</link>
-     <link linkend='var-DL_DIR'>DL_DIR</link>
-     <link linkend='var-SSTATE_DIR'>SSTATE_DIR</link>
-     <link linkend='var-TMPDIR'>TMPDIR</link>
-     <link linkend='var-BB_SERVER_TIMEOUT'>BB_SERVER_TIMEOUT</link>
-                    </literallayout>
-                </para>
-
-                <para>
-                    For additional information on how to customize the
-                    extensible SDK's configuration, see the
-                    "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-configuring-the-extensible-sdk'>Configuring the Extensible SDK</ulink>"
-                    section in the Yocto Project Application Development and
-                    the Extensible Software Development Kit (eSDK) manual.
-                </para>
-
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_LOCAL_CONF_WHITELIST'><glossterm>SDK_LOCAL_CONF_WHITELIST</glossterm>
-            <info>
-                SDK_LOCAL_CONF_WHITELIST[doc] = "A list of variables allowed through from the build system configuration into the extensible SDK configuration."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of variables allowed through from the OpenEmbedded
-                    build system configuration into the extensible SDK
-                    configuration.
-                    By default, the list of variables is empty and is set in
-                    the
-                    <link linkend='ref-classes-populate-sdk-*'><filename>populate-sdk-ext</filename></link>
-                    class.
-                </para>
-
-                <para>
-                    This list overrides the variables specified using the
-                    <link linkend='var-SDK_LOCAL_CONF_BLACKLIST'><filename>SDK_LOCAL_CONF_BLACKLIST</filename></link>
-                    variable as well as any variables identified by automatic
-                    blacklisting due to the "/" character being found at the
-                    start of the value, which is usually indicative of being a
-                    path and thus might not be valid on the system where the
-                    SDK is installed.
-                </para>
-
-                <para>
-                    For additional information on how to customize the
-                    extensible SDK's configuration, see the
-                    "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-configuring-the-extensible-sdk'>Configuring the Extensible SDK</ulink>"
-                    section in the Yocto Project Application Development and
-                    the Extensible Software Development Kit (eSDK) manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_NAME'><glossterm>SDK_NAME</glossterm>
-            <info>
-                SDK_NAME[doc] = "The base name for SDK output files."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The base name for SDK output files.
-                    The name is derived from the
-                    <link linkend='var-DISTRO'><filename>DISTRO</filename></link>,
-                    <link linkend='var-TCLIBC'><filename>TCLIBC</filename></link>,
-                    <link linkend='var-SDK_ARCH'><filename>SDK_ARCH</filename></link>,
-                    <link linkend='var-IMAGE_BASENAME'><filename>IMAGE_BASENAME</filename></link>,
-                    and
-                    <link linkend='var-TUNE_PKGARCH'><filename>TUNE_PKGARCH</filename></link>
-                    variables:
-                    <literallayout class='monospaced'>
-     SDK_NAME = "${DISTRO}-${TCLIBC}-${SDK_ARCH}-${IMAGE_BASENAME}-${TUNE_PKGARCH}"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_OS'><glossterm>SDK_OS</glossterm>
-            <info>
-                SDK_OS[doc] = "The operating system for which the SDK will be built."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the operating system for which the SDK
-                    will be built.
-                    The default value is the value of
-                    <link linkend='var-BUILD_OS'><filename>BUILD_OS</filename></link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_OUTPUT'><glossterm>SDK_OUTPUT</glossterm>
-            <info>
-                SDK_OUTPUT[doc] = "The location used by the OpenEmbedded build system when creating SDK output."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The location used by the OpenEmbedded build system when
-                    creating SDK output.
-                    The
-                    <link linkend='ref-classes-populate-sdk-*'><filename>populate_sdk_base</filename></link>
-                    class defines the variable as follows:
-                    <literallayout class='monospaced'>
-     SDK_DIR = "${WORKDIR}/sdk"
-     SDK_OUTPUT = "${SDK_DIR}/image"
-     SDK_DEPLOY = "${DEPLOY_DIR}/sdk"
-                    </literallayout>
-                    <note>
-                        The <filename>SDK_OUTPUT</filename> directory is a
-                        temporary directory as it is part of
-                        <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>
-                        by way of
-                        <link linkend='var-SDK_DIR'><filename>SDK_DIR</filename></link>.
-                        The final output directory is
-                        <link linkend='var-SDK_DEPLOY'><filename>SDK_DEPLOY</filename></link>.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_PACKAGE_ARCHS'><glossterm>SDK_PACKAGE_ARCHS</glossterm>
-            <info>
-                SDK_PACKAGE_ARCHS[doc] = "Specifies a list of architectures compatible with the SDK machine. This variable is set automatically and should not normally be hand-edited."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of architectures compatible with
-                    the SDK machine.
-                    This variable is set automatically and should not
-                    normally be hand-edited.
-                    Entries are separated using spaces and listed in order
-                    of priority.
-                    The default value for
-                    <filename>SDK_PACKAGE_ARCHS</filename> is "all any noarch
-                    ${SDK_ARCH}-${SDKPKGSUFFIX}".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_POSTPROCESS_COMMAND'><glossterm>SDK_POSTPROCESS_COMMAND</glossterm>
-            <info>
-                SDK_POSTPROCESS_COMMAND[doc] = "Specifies a list of functions to call once the OpenEmbedded build system creates the SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of functions to call once the
-                    OpenEmbedded build system creates the SDK.
-                    You can specify functions separated by semicolons:
-                    <literallayout class='monospaced'>
-     SDK_POSTPROCESS_COMMAND += "<replaceable>function</replaceable>; ... "
-                    </literallayout>
-                </para>
-
-                <para>
-                    If you need to pass an SDK path to a command within a
-                    function, you can use
-                    <filename>${SDK_DIR}</filename>, which points to
-                    the parent directory used by the OpenEmbedded build system
-                    when creating SDK output.
-                    See the
-                    <link linkend='var-SDK_DIR'><filename>SDK_DIR</filename></link>
-                    variable for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_PREFIX'><glossterm>SDK_PREFIX</glossterm>
-            <info>
-                SDK_PREFIX[doc] = "The toolchain binary prefix used for nativesdk recipes."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The toolchain binary prefix used for
-                    <filename>nativesdk</filename> recipes.
-                    The OpenEmbedded build system uses the
-                    <filename>SDK_PREFIX</filename> value to set the
-                    <link linkend='var-TARGET_PREFIX'><filename>TARGET_PREFIX</filename></link>
-                    when building <filename>nativesdk</filename> recipes.
-                    The default value is "${SDK_SYS}-".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_RECRDEP_TASKS'><glossterm>SDK_RECRDEP_TASKS</glossterm>
-            <info>
-                SDK_RECRDEP_TASKS[doc] = "A list of shared state tasks added to the extensible SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of shared state tasks added to the extensible SDK.
-                    By default, the following tasks are added:
-                    <literallayout class='monospaced'>
-     do_populate_lic
-     do_package_qa
-     do_populate_sysroot
-     do_deploy
-                    </literallayout>
-                    Despite the default value of "" for the
-                    <filename>SDK_RECRDEP_TASKS</filename> variable, the
-                    above four tasks are always added to the SDK.
-                    To specify tasks beyond these four, you need to use
-                    the <filename>SDK_RECRDEP_TASKS</filename> variable (e.g.
-                    you are defining additional tasks that are needed in
-                    order to build
-                    <link linkend='var-SDK_TARGETS'><filename>SDK_TARGETS</filename></link>).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_SYS'><glossterm>SDK_SYS</glossterm>
-            <info>
-                SDK_SYS[doc] = "Specifies the system, including the architecture and the operating system, for which the SDK will be built."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the system, including the architecture and the
-                    operating system, for which the SDK will be built.
-                </para>
-
-                <para>
-                    The OpenEmbedded build system automatically sets this
-                    variable based on
-                    <link linkend='var-SDK_ARCH'><filename>SDK_ARCH</filename></link>,
-                    <link linkend='var-SDK_VENDOR'><filename>SDK_VENDOR</filename></link>,
-                    and
-                    <link linkend='var-SDK_OS'><filename>SDK_OS</filename></link>.
-                    You do not need to set the <filename>SDK_SYS</filename>
-                    variable yourself.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_TARGET_MANIFEST'><glossterm>SDK_TARGET_MANIFEST</glossterm>
-            <info>
-                SDK_TARGET_MANIFEST[doc] = "The manifest file for the target part of the SDK. This file lists all the installed packages that make up the target part of the SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The manifest file for the target part of the SDK.
-                    This file lists all the installed packages that make up
-                    the target part of the SDK.
-                    The file contains package information on a line-per-package
-                    basis as follows:
-                    <literallayout class='monospaced'>
-     <replaceable>packagename</replaceable> <replaceable>packagearch</replaceable> <replaceable>version</replaceable>
-                    </literallayout>
-                </para>
-
-                <para>
-                    The
-                    <link linkend='ref-classes-populate-sdk-*'><filename>populate_sdk_base</filename></link>
-                    class defines the manifest file as follows:
-                    <literallayout class='monospaced'>
-     SDK_TARGET_MANIFEST = "${SDK_DEPLOY}/${TOOLCHAIN_OUTPUTNAME}.target.manifest"
-                    </literallayout>
-                    The location is derived using the
-                    <link linkend='var-SDK_DEPLOY'><filename>SDK_DEPLOY</filename></link>
-                    and
-                    <link linkend='var-TOOLCHAIN_OUTPUTNAME'><filename>TOOLCHAIN_OUTPUTNAME</filename></link>
-                    variables.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_TARGETS'><glossterm>SDK_TARGETS</glossterm>
-            <info>
-                SDK_TARGETS[doc] = "A list of targets to install from shared state as part of the standard or extensible SDK installation."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of targets to install from shared state as part of
-                    the standard or extensible SDK installation.
-                    The default value is "${PN}" (i.e. the image from which
-                    the SDK is built).
-                </para>
-
-                <para>
-                    The <filename>SDK_TARGETS</filename> variable is an
-                    internal variable and typically would not be changed.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_TITLE'><glossterm>SDK_TITLE</glossterm>
-            <info>
-                SDK_TITLE[doc] = "The title to be printed when running the SDK installer."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The title to be printed when running the SDK installer.
-                    By default, this title is based on the
-                    <link linkend='var-DISTRO_NAME'><filename>DISTRO_NAME</filename></link>
-                    or
-                    <link linkend='var-DISTRO'><filename>DISTRO</filename></link>
-                    variable and is set in the
-                    <link linkend='ref-classes-populate-sdk-*'><filename>populate_sdk_base</filename></link>
-                    class as follows:
-                    <literallayout class='monospaced'>
-     SDK_TITLE ??= "${@d.getVar('DISTRO_NAME') or d.getVar('DISTRO')} SDK"
-                    </literallayout>
-                    For the default distribution "poky",
-                    <filename>SDK_TITLE</filename> is set to
-                    "Poky (Yocto Project Reference Distro)".
-                </para>
-
-                <para>
-                    For information on how to change this default title,
-                    see the
-                    "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-changing-the-sdk-installer-title'>Changing the Extensible SDK Installer Title</ulink>"
-                    section in the Yocto Project Application Development and
-                    the Extensible Software Development Kit (eSDK) manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_UPDATE_URL'><glossterm>SDK_UPDATE_URL</glossterm>
-            <info>
-                SDK_UPDATE_URL[doc] = "An optional URL for an update server for the extensible SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    An optional URL for an update server for the extensible
-                    SDK.
-                    If set, the value is used as the default update server when
-                    running <filename>devtool sdk-update</filename> within the
-                    extensible SDK.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_VENDOR'><glossterm>SDK_VENDOR</glossterm>
-            <info>
-                SDK_VENDOR[doc] = "Specifies the name of the SDK vendor."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the name of the SDK vendor.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDK_VERSION'><glossterm>SDK_VERSION</glossterm>
-            <info>
-                SDK_VERSION[doc] = "Specifies the version for the SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the version of the SDK.
-                    The distribution configuration file (e.g.
-                    <filename>/meta-poky/conf/distro/poky.conf</filename>)
-                    defines the <filename>SDK_VERSION</filename> as follows:
-                    <literallayout class='monospaced'>
-     SDK_VERSION = "${@d.getVar('DISTRO_VERSION').replace('snapshot-${DATE}','snapshot')}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    For additional information, see the
-                    <link linkend='var-DISTRO_VERSION'><filename>DISTRO_VERSION</filename></link>
-                    and
-                    <link linkend='var-DATE'><filename>DATE</filename></link>
-                    variables.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDKEXTPATH'><glossterm>SDKEXTPATH</glossterm>
-            <info>
-                SDKEXTPATH[doc] = "The default installation directory for the extensible SDK."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The default installation directory for the Extensible SDK.
-                    By default, this directory is based on the
-                    <link linkend='var-DISTRO'><filename>DISTRO</filename></link>
-                    variable and is set in the
-                    <link linkend='ref-classes-populate-sdk-*'><filename>populate_sdk_base</filename></link>
-                    class as follows:
-                    <literallayout class='monospaced'>
-     SDKEXTPATH ??= "~/${@d.getVar('DISTRO')}_sdk"
-                    </literallayout>
-                    For the default distribution "poky", the
-                    <filename>SDKEXTPATH</filename> is set to "poky_sdk".
-                </para>
-
-                <para>
-                    For information on how to change this default directory,
-                    see the
-                    "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-changing-the-default-sdk-installation-directory'>Changing the Default SDK Installation Directory</ulink>"
-                    section in the Yocto Project Application Development and
-                    the Extensible Software Development Kit (eSDK) manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDKIMAGE_FEATURES'><glossterm>SDKIMAGE_FEATURES</glossterm>
-            <info>
-                SDKIMAGE_FEATURES[doc] = "Equivalent to IMAGE_FEATURES. However, this variable applies to the SDK generated from an image using the command 'bitbake -c populate_sdk imagename'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Equivalent to
-                    <filename><link linkend='var-IMAGE_FEATURES'>IMAGE_FEATURES</link></filename>.
-                    However, this variable applies to the SDK generated from an
-                    image using the following command:
-                    <literallayout class='monospaced'>
-     $ bitbake -c populate_sdk <replaceable>imagename</replaceable>
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDKMACHINE'><glossterm>SDKMACHINE</glossterm>
-            <info>
-                SDKMACHINE[doc] = "Specifies the architecture (i.e. i686 or x86_64) for which to build SDK items."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The machine for which the SDK is built.
-                    In other words, the SDK is built such that it
-                    runs on the target you specify with the
-                    <filename>SDKMACHINE</filename> value.
-                    The value points to a corresponding
-                    <filename>.conf</filename> file under
-                    <filename>conf/machine-sdk/</filename>.
-                </para>
-
-                <para>
-                     You can use "i686" and "x86_64" as possible values
-                     for this variable. The variable defaults to "i686"
-                     and is set in the local.conf file in the Build Directory.
-                     <literallayout class='monospaced'>
-     SDKMACHINE ?= "i686"
-                     </literallayout>
-                     <note>
-                         You cannot set the <filename>SDKMACHINE</filename>
-                         variable in your distribution configuration file.
-                         If you do, the configuration will not take affect.
-                     </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDKPATH'><glossterm>SDKPATH</glossterm>
-            <info>
-                SDKPATH[doc] = "Defines the path offered to the user for installation of the SDK that is generated by the OpenEmbedded build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines the path offered to the user for installation
-                    of the SDK that is generated by the OpenEmbedded build
-                    system.
-                    The path appears as the default location for installing
-                    the SDK when you run the SDK's installation script.
-                    You can override the offered path when you run the
-                    script.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SDKTARGETSYSROOT'><glossterm>SDKTARGETSYSROOT</glossterm>
-            <info>
-                SDKTARGETSYSROOT[doc] = "Full path to the sysroot used for cross-compilation within an SDK as it will be when installed into the default SDKPATH."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The full path to the sysroot used for cross-compilation
-                    within an SDK as it will be when installed into the
-                    default
-                    <link linkend='var-SDKPATH'><filename>SDKPATH</filename></link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SECTION'><glossterm>SECTION</glossterm>
-            <info>
-                SECTION[doc] = "The section in which packages should be categorized. Package management utilities can make use of this variable."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The section in which packages should be categorized.
-                    Package management utilities can make use of this variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SELECTED_OPTIMIZATION'><glossterm>SELECTED_OPTIMIZATION</glossterm>
-            <info>
-                SELECTED_OPTIMIZATION[doc] = "The variable takes the value of FULL_OPTIMIZATION unless DEBUG_BUILD = '1'. In this case, the value of DEBUG_OPTIMIZATION is used."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the optimization flags passed to the C compiler
-                    when building for the target.
-                    The flags are passed through the default value of the
-                    <link linkend='var-TARGET_CFLAGS'><filename>TARGET_CFLAGS</filename></link>
-                    variable.
-                </para>
-
-                <para>
-                    The <filename>SELECTED_OPTIMIZATION</filename> variable
-                    takes the value of
-                    <filename><link linkend='var-FULL_OPTIMIZATION'>FULL_OPTIMIZATION</link></filename>
-                    unless <filename><link linkend='var-DEBUG_BUILD'>DEBUG_BUILD</link></filename> = "1".
-                    If that is the case, the value of
-                    <filename><link linkend='var-DEBUG_OPTIMIZATION'>DEBUG_OPTIMIZATION</link></filename> is used.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SERIAL_CONSOLE'><glossterm>SERIAL_CONSOLE</glossterm>
-            <info>
-                SERIAL_CONSOLE[doc] = "Defines the serial consoles (TTYs) to enable using getty."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines a serial console (TTY) to enable using
-                    <ulink url='https://en.wikipedia.org/wiki/Getty_(Unix)'>getty</ulink>.
-                    Provide a value that specifies the baud rate followed by
-                    the TTY device name separated by a space.
-                    You cannot specify more than one TTY device:
-                    <literallayout class='monospaced'>
-     SERIAL_CONSOLE = "115200 ttyS0"
-                    </literallayout>
-                    <note>
-                        The <filename>SERIAL_CONSOLE</filename> variable
-                        is deprecated.
-                        Please use the
-                        <link linkend='var-SERIAL_CONSOLES'><filename>SERIAL_CONSOLES</filename></link>
-                        variable.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SERIAL_CONSOLES'><glossterm>SERIAL_CONSOLES</glossterm>
-            <info>
-                SERIAL_CONSOLES[doc] = "Defines the serial consoles (TTYs) to enable using getty."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines a serial console (TTY) to enable using
-                    <ulink url='https://en.wikipedia.org/wiki/Getty_(Unix)'>getty</ulink>.
-                    Provide a value that specifies the baud rate followed by
-                    the TTY device name separated by a semicolon.
-                    Use spaces to separate multiple devices:
-                    <literallayout class='monospaced'>
-     SERIAL_CONSOLES = "115200;ttyS0 115200;ttyS1"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SERIAL_CONSOLES_CHECK'><glossterm>SERIAL_CONSOLES_CHECK</glossterm>
-            <info>
-                SERIAL_CONSOLES_CHECK[doc] = "Selected SERIAL_CONSOLES to check against /proc/console before enabling using getty. Supported only by SysVinit."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies serial consoles, which must be listed in
-                    <link linkend='var-SERIAL_CONSOLES'><filename>SERIAL_CONSOLES</filename></link>,
-                    to check against <filename>/proc/console</filename>
-                    before enabling them using getty.
-                    This variable allows aliasing in the format:
-                    &lt;device&gt;:&lt;alias&gt;.
-                    If a device was listed as "sclp_line0"
-                    in <filename>/dev/</filename> and "ttyS0" was listed
-                    in <filename>/proc/console</filename>, you would do the
-                    following:
-                    <literallayout class='monospaced'>
-     SERIAL_CONSOLES_CHECK = "slcp_line0:ttyS0"
-                    </literallayout>
-                    This variable is currently only supported with SysVinit
-                    (i.e. not with systemd).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SIGGEN_EXCLUDE_SAFE_RECIPE_DEPS'><glossterm>SIGGEN_EXCLUDE_SAFE_RECIPE_DEPS</glossterm>
-            <info>
-                SIGGEN_EXCLUDE_SAFE_RECIPE_DEPS[doc] = "A list of recipe dependencies that should not be used to determine signatures of tasks from one recipe when they depend on tasks from another recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of recipe dependencies that should not be used to
-                    determine signatures of tasks from one recipe when they
-                    depend on tasks from another recipe.
-                    For example:
-                    <literallayout class='monospaced'>
-    SIGGEN_EXCLUDE_SAFE_RECIPE_DEPS += "intone->mplayer2"
-                    </literallayout>
-                </para>
-
-                <para>
-                    In the previous example, <filename>intone</filename>
-                    depends on <filename>mplayer2</filename>.
-                </para>
-
-                <para>
-                    You can use the special token <filename>"*"</filename> on
-                    the left-hand side of the dependency to match all
-                    recipes except the one on the right-hand side.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-    SIGGEN_EXCLUDE_SAFE_RECIPE_DEPS += "*->quilt-native"
-                    </literallayout>
-                </para>
-
-                <para>
-                    In the previous example, all recipes except
-                    <filename>quilt-native</filename> ignore task
-                    signatures from the <filename>quilt-native</filename>
-                    recipe when determining their task signatures.
-                </para>
-
-                <para>
-                    Use of this variable is one mechanism to remove dependencies
-                    that affect task signatures and thus force rebuilds when a
-                    recipe changes.
-                    <note><title>Caution</title>
-                        If you add an inappropriate dependency for a recipe
-                        relationship, the software might break during
-                        runtime if the interface of the second recipe was
-                        changed after the first recipe had been built.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SIGGEN_EXCLUDERECIPES_ABISAFE'><glossterm>SIGGEN_EXCLUDERECIPES_ABISAFE</glossterm>
-            <info>
-                SIGGEN_EXCLUDERECIPES_ABISAFE[doc] = "A list of recipes that are completely stable and will never change."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of recipes that are completely stable and will
-                    never change.
-                    The ABI for the recipes in the list are presented by
-                    output from the tasks run to build the recipe.
-                    Use of this variable is one way to remove dependencies from
-                    one recipe on another that affect task signatures and
-                    thus force rebuilds when the recipe changes.
-                    <note><title>Caution</title>
-                        If you add an inappropriate variable to this list,
-                        the software might break at runtime if the
-                        interface of the recipe was changed after the other
-                        had been built.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SITEINFO_BITS'><glossterm>SITEINFO_BITS</glossterm>
-            <info>
-                SITEINFO_BITS[doc] = "Specifies the number of bits for the target system CPU."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the number of bits for the target system CPU.
-                    The value should be either "32" or "64".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SITEINFO_ENDIANNESS'><glossterm>SITEINFO_ENDIANNESS</glossterm>
-            <info>
-                SITEINFO_ENDIANNESS[doc] = "Specifies the endian byte order of the target system. The value should be either 'le' for 'little-endian' or 'be' for 'big-endian'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the endian byte order of the target system.
-                    The value should be either "le" for little-endian or "be" for big-endian.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SKIP_FILEDEPS'><glossterm>SKIP_FILEDEPS</glossterm>
-            <info>
-                SKIP_FILEDEPS[doc] = "Enables you to remove all files from the 'Provides' section of an RPM package."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Enables removal of all files from the "Provides" section of
-                    an RPM package.
-                    Removal of these files is required for packages containing
-                    prebuilt binaries and libraries such as
-                    <filename>libstdc++</filename> and
-                    <filename>glibc</filename>.
-                </para>
-
-                <para>
-                    To enable file removal, set the variable to "1" in your
-                    <filename>conf/local.conf</filename> configuration file
-                    in your:
-                    <link linkend='build-directory'>Build Directory</link>.
-                    <literallayout class='monospaced'>
-     SKIP_FILEDEPS = "1"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SOC_FAMILY'><glossterm>SOC_FAMILY</glossterm>
-            <info>
-                SOC_FAMILY[doc] = "Groups together machines based upon the same family of SOC (System On Chip). You typically set this variable in a common .inc file that you include in the configuration files of all the machines."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Groups together machines based upon the same family
-                    of SOC (System On Chip).
-                    You typically set this variable in a common
-                    <filename>.inc</filename> file that you include in the
-                    configuration files of all the machines.
-                    <note>
-                        You must include
-                        <filename>conf/machine/include/soc-family.inc</filename>
-                        for this variable to appear in
-                        <link linkend='var-MACHINEOVERRIDES'><filename>MACHINEOVERRIDES</filename></link>.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SOLIBS'><glossterm>SOLIBS</glossterm>
-            <info>
-                SOLIBS[doc] = "Defines the suffix for shared libraries used on the target platform."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines the suffix for shared libraries used on the
-                    target platform.
-                    By default, this suffix is ".so.*" for all Linux-based
-                    systems and is defined in the
-                    <filename>meta/conf/bitbake.conf</filename> configuration
-                    file.
-                </para>
-
-                <para>
-                    You will see this variable referenced in the default values
-                    of <filename>FILES_${PN}</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SOLIBSDEV'><glossterm>SOLIBSDEV</glossterm>
-            <info>
-                SOLIBSDEV[doc] = "Defines the suffix for the development symbolic link (symlink) for shared libraries on the target platform."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines the suffix for the development symbolic link
-                    (symlink) for shared libraries on the target platform.
-                    By default, this suffix is ".so" for Linux-based
-                    systems and is defined in the
-                    <filename>meta/conf/bitbake.conf</filename> configuration
-                    file.
-                </para>
-
-                <para>
-                    You will see this variable referenced in the default values
-                    of <filename>FILES_${PN}-dev</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SOURCE_MIRROR_FETCH'><glossterm>SOURCE_MIRROR_FETCH</glossterm>
-            <info>
-                SOURCE_MIRROR_FETCH[doc] = "Set as part of a source mirror generation script to skip COMPATIBLE_MACHINE and COMPATIBLE_HOST checks."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When you are fetching files to create a mirror of sources
-                    (i.e. creating a source mirror), setting
-                    <filename>SOURCE_MIRROR_FETCH</filename> to "1" in your
-                    <filename>local.conf</filename> configuration file ensures
-                    the source for all recipes are fetched regardless of
-                    whether or not a recipe is compatible with the
-                    configuration.
-                    A recipe is considered incompatible with the currently
-                    configured machine when either or both the
-                    <link linkend='var-COMPATIBLE_MACHINE'><filename>COMPATIBLE_MACHINE</filename></link>
-                    variable and
-                    <link linkend='var-COMPATIBLE_HOST'><filename>COMPATIBLE_HOST</filename></link>
-                    variables specify compatibility with a machine other
-                    than that of the current machine or host.
-                    <note><title>Warning</title>
-                        Do not set the
-                        <filename>SOURCE_MIRROR_FETCH</filename> variable
-                        unless you are creating a source mirror.
-                        In other words, do not set the variable during a
-                        normal build.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SOURCE_MIRROR_URL'><glossterm>SOURCE_MIRROR_URL</glossterm>
-            <info>
-                SOURCE_MIRROR_URL[doc] = "URL to source mirror that will be used before fetching from original SRC_URI."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Defines your own
-                    <link linkend='var-PREMIRRORS'><filename>PREMIRRORS</filename></link>
-                    from which to first fetch source before attempting to fetch
-                    from the upstream specified in
-                    <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>.
-                </para>
-
-                <para>
-                    To use this variable, you must globally inherit the
-                    <link linkend='ref-classes-own-mirrors'><filename>own-mirrors</filename></link>
-                    class and then provide the URL to your mirrors.
-                    Here is the general syntax:
-                    <literallayout class='monospaced'>
-     INHERIT += "own-mirrors"
-     SOURCE_MIRROR_URL = "http://<replaceable>example</replaceable>.com/<replaceable>my_source_mirror</replaceable>"
-                    </literallayout>
-                    <note>
-                        You can specify only a single URL in
-                        <filename>SOURCE_MIRROR_URL</filename>.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SPDXLICENSEMAP'><glossterm>SPDXLICENSEMAP</glossterm>
-            <info>
-                SPDXLICENSEMAP[doc] = "Maps commonly used license names to their SPDX counterparts found in meta/files/common-licenses/."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Maps commonly used license names to their SPDX counterparts
-                    found in <filename>meta/files/common-licenses/</filename>.
-                    For the default <filename>SPDXLICENSEMAP</filename>
-                    mappings, see the
-                    <filename>meta/conf/licenses.conf</filename> file.
-                </para>
-
-                <para>
-                    For additional information, see the
-                    <link linkend='var-LICENSE'><filename>LICENSE</filename></link>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SPECIAL_PKGSUFFIX'><glossterm>SPECIAL_PKGSUFFIX</glossterm>
-            <info>
-                SPECIAL_PKGSUFFIX[doc] = "A list of prefixes for PN used by the OpenEmbedded build system to create variants of recipes or packages. The list specifies the prefixes to strip off during certain circumstances such as the generation of the BPN variable."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of prefixes for <link linkend='var-PN'><filename>PN</filename></link> used by the
-                    OpenEmbedded build system to create variants of recipes or packages.
-                    The list specifies the prefixes to strip off during certain circumstances
-                    such as the generation of the <link linkend='var-BPN'><filename>BPN</filename></link> variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SPL_BINARY'><glossterm>SPL_BINARY</glossterm>
-            <info>
-                SPL_BINARY[doc] = "The file type of the Secondary Program Loader (SPL)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The file type for the Secondary Program Loader (SPL).
-                    Some devices use an SPL from which to boot (e.g. the
-                    BeagleBone development board).
-                    For such cases, you can declare the file type of the
-                    SPL binary in the <filename>u-boot.inc</filename> include
-                    file, which is used in the U-Boot recipe.
-                </para>
-
-                <para>
-                    The SPL file type is set to "null" by default in the
-                    <filename>u-boot.inc</filename> file as follows:
-                    <literallayout class='monospaced'>
-     # Some versions of u-boot build an SPL (Second Program Loader) image that
-     # should be packaged along with the u-boot binary as well as placed in the
-     # deploy directory.  For those versions they can set the following variables
-     # to allow packaging the SPL.
-     SPL_BINARY ?= ""
-     SPL_BINARYNAME ?= "${@os.path.basename(d.getVar("SPL_BINARY"))}"
-     SPL_IMAGE ?= "${SPL_BINARYNAME}-${MACHINE}-${PV}-${PR}"
-     SPL_SYMLINK ?= "${SPL_BINARYNAME}-${MACHINE}"
-                    </literallayout>
-                    The <filename>SPL_BINARY</filename> variable helps form
-                    various <filename>SPL_*</filename> variables used by
-                    the OpenEmbedded build system.
-                </para>
-
-                <para>
-                    See the BeagleBone machine configuration example in the
-                    "<ulink url='&YOCTO_DOCS_BSP_URL;#creating-a-new-bsp-layer-using-the-bitbake-layers-script'>Creating a new BSP Layer Using the <filename>bitbake-layers</filename> Script</ulink>"
-                    section in the Yocto Project Board Support Package
-                    Developer's Guide for additional information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SRC_URI'><glossterm>SRC_URI</glossterm>
-            <info>
-                SRC_URI[doc] = "The list of source files - local or remote. This variable tells the OpenEmbedded build system what bits to pull in for the build and how to pull them in."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The list of source files - local or remote.
-                    This variable tells the OpenEmbedded build system which bits
-                    to pull in for the build and how to pull them in.
-                    For example, if the recipe or append file only needs to
-                    fetch a tarball from the Internet, the recipe or
-                    append file uses a single <filename>SRC_URI</filename>
-                    entry.
-                    On the other hand, if the recipe or append file needs to
-                    fetch a tarball, apply two patches, and include a custom
-                    file, the recipe or append file would include four
-                    instances of the variable.
-                </para>
-
-                <para>
-                    The following list explains the available URI protocols.
-                    URI protocols are highly dependent on particular BitBake
-                    Fetcher submodules.
-                    Depending on the fetcher BitBake uses, various URL
-                    parameters are employed.
-                    For specifics on the supported Fetchers, see the
-                    "<ulink url='&YOCTO_DOCS_BB_URL;#bb-fetchers'>Fetchers</ulink>"
-                    section in the BitBake User Manual.
-                    <itemizedlist>
-                        <listitem><para><emphasis><filename>file://</filename> -</emphasis>
-                            Fetches files, which are usually files shipped with
-                            the
-                            <link linkend='metadata'>Metadata</link>,
-                            from the local machine (e.g.
-                            <ulink url='&YOCTO_DOCS_OM_URL;#patching-dev-environment'>patch</ulink>
-                            files).
-                            The path is relative to the
-                            <link linkend='var-FILESPATH'><filename>FILESPATH</filename></link>
-                            variable.
-                            Thus, the build system searches, in order, from the
-                            following directories, which are assumed to be a
-                            subdirectories of the directory in which the
-                            recipe file (<filename>.bb</filename>) or
-                            append file (<filename>.bbappend</filename>)
-                            resides:
-                            <itemizedlist>
-                                <listitem><para><emphasis><filename>${BPN}</filename> -</emphasis>
-                                    The base recipe name without any special
-                                    suffix or version numbers.
-                                    </para></listitem>
-                                <listitem><para><emphasis><filename>${BP}</filename> -</emphasis>
-                                    <filename>${<link linkend='var-BPN'>BPN</link>}-${PV}</filename>.
-                                    The base recipe name and version but without
-                                    any special package name suffix.
-                                    </para></listitem>
-                                <listitem><para><emphasis>files -</emphasis>
-                                    Files within a directory, which is named
-                                    <filename>files</filename> and is also
-                                    alongside the recipe or append file.
-                                    </para></listitem>
-                            </itemizedlist>
-                            <note>
-                                If you want the build system to pick up files
-                                specified through a
-                                <filename>SRC_URI</filename>
-                                statement from your append file, you need to be
-                                sure to extend the
-                                <filename>FILESPATH</filename>
-                                variable by also using the
-                                <link linkend='var-FILESEXTRAPATHS'><filename>FILESEXTRAPATHS</filename></link>
-                                variable from within your append file.
-                            </note>
-                            </para></listitem>
-                        <listitem><para><emphasis><filename>bzr://</filename> -</emphasis> Fetches files from a
-                            Bazaar revision control repository.</para></listitem>
-                        <listitem><para><emphasis><filename>git://</filename> -</emphasis> Fetches files from a
-                            Git revision control repository.</para></listitem>
-                        <listitem><para><emphasis><filename>osc://</filename> -</emphasis> Fetches files from
-                            an OSC (OpenSUSE Build service) revision control repository.</para></listitem>
-                        <listitem><para><emphasis><filename>repo://</filename> -</emphasis> Fetches files from
-                            a repo (Git) repository.</para></listitem>
-                        <listitem><para><emphasis><filename>ccrc://</filename> -</emphasis>
-                            Fetches files from a ClearCase repository.
-                            </para></listitem>
-                        <listitem><para><emphasis><filename>http://</filename> -</emphasis> Fetches files from
-                            the Internet using <filename>http</filename>.</para></listitem>
-                        <listitem><para><emphasis><filename>https://</filename> -</emphasis> Fetches files
-                            from the Internet using <filename>https</filename>.</para></listitem>
-                        <listitem><para><emphasis><filename>ftp://</filename> -</emphasis> Fetches files
-                            from the Internet using <filename>ftp</filename>.</para></listitem>
-                        <listitem><para><emphasis><filename>cvs://</filename> -</emphasis> Fetches files from
-                            a CVS revision control repository.</para></listitem>
-                        <listitem><para><emphasis><filename>hg://</filename> -</emphasis> Fetches files from
-                            a Mercurial (<filename>hg</filename>) revision control repository.</para></listitem>
-                        <listitem><para><emphasis><filename>p4://</filename> -</emphasis> Fetches files from
-                            a Perforce (<filename>p4</filename>) revision control repository.</para></listitem>
-                        <listitem><para><emphasis><filename>ssh://</filename> -</emphasis> Fetches files from
-                            a secure shell.</para></listitem>
-                        <listitem><para><emphasis><filename>svn://</filename> -</emphasis> Fetches files from
-                            a Subversion (<filename>svn</filename>) revision control repository.</para></listitem>
-                        <listitem><para><emphasis><filename>npm://</filename> -</emphasis> Fetches JavaScript
-                            modules from a registry.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    Standard and recipe-specific options for <filename>SRC_URI</filename> exist.
-                    Here are standard options:
-                    <itemizedlist>
-                        <listitem><para><emphasis><filename>apply</filename> -</emphasis> Whether to apply
-                            the patch or not.
-                            The default action is to apply the patch.</para></listitem>
-                        <listitem><para><emphasis><filename>striplevel</filename> -</emphasis> Which
-                            striplevel to use when applying the patch.
-                            The default level is 1.</para></listitem>
-                        <listitem><para><emphasis><filename>patchdir</filename> -</emphasis> Specifies
-                            the directory in which the patch should be applied.
-                            The default is <filename>${</filename><link linkend='var-S'><filename>S</filename></link><filename>}</filename>.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    Here are options specific to recipes building code from a revision control system:
-                    <itemizedlist>
-                        <listitem><para><emphasis><filename>mindate</filename> -</emphasis>
-                            Apply the patch only if
-                            <link linkend='var-SRCDATE'><filename>SRCDATE</filename></link>
-                            is equal to or greater than <filename>mindate</filename>.
-                            </para></listitem>
-                        <listitem><para><emphasis><filename>maxdate</filename> -</emphasis>
-                            Apply the patch only if <filename>SRCDATE</filename>
-                            is not later than <filename>maxdate</filename>.
-                            </para></listitem>
-                        <listitem><para><emphasis><filename>minrev</filename> -</emphasis>
-                            Apply the patch only if <filename>SRCREV</filename>
-                            is equal to or greater than <filename>minrev</filename>.
-                            </para></listitem>
-                        <listitem><para><emphasis><filename>maxrev</filename> -</emphasis>
-                            Apply the patch only if <filename>SRCREV</filename>
-                            is not later than <filename>maxrev</filename>.
-                            </para></listitem>
-                        <listitem><para><emphasis><filename>rev</filename> -</emphasis>
-                            Apply the patch only if <filename>SRCREV</filename>
-                            is equal to <filename>rev</filename>.
-                            </para></listitem>
-                        <listitem><para><emphasis><filename>notrev</filename> -</emphasis>
-                            Apply the patch only if <filename>SRCREV</filename>
-                            is not equal to <filename>rev</filename>.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    Here are some additional options worth mentioning:
-                    <itemizedlist>
-                        <listitem><para><emphasis><filename>unpack</filename> -</emphasis> Controls
-                            whether or not to unpack the file if it is an archive.
-                            The default action is to unpack the file.</para></listitem>
-                        <listitem><para><emphasis><filename>destsuffix</filename> -</emphasis> Places the file
-                            (or extracts its contents) into the specified
-                            subdirectory of <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>
-                            when the Git fetcher is used.
-                            </para></listitem>
-                        <listitem><para><emphasis><filename>subdir</filename> -</emphasis> Places the file
-                            (or extracts its contents) into the specified
-                            subdirectory of <filename>WORKDIR</filename>
-                            when the local (<filename>file://</filename>)
-                            fetcher is used.
-                            </para></listitem>
-                        <listitem><para><emphasis><filename>localdir</filename> -</emphasis> Places the file
-                            (or extracts its contents) into the specified
-                            subdirectory of <filename>WORKDIR</filename> when
-                            the CVS fetcher is used.
-                            </para></listitem>
-                        <listitem><para><emphasis><filename>subpath</filename> -</emphasis>
-                            Limits the checkout to a specific subpath of the
-                            tree when using the Git fetcher is used.
-                            </para></listitem>
-                        <listitem><para><emphasis><filename>name</filename> -</emphasis> Specifies a
-                            name to be used for association with <filename>SRC_URI</filename> checksums
-                            when you have more than one file specified in <filename>SRC_URI</filename>.
-                            </para></listitem>
-                        <listitem><para><emphasis><filename>downloadfilename</filename> -</emphasis> Specifies
-                            the filename used when storing the downloaded file.</para></listitem>
-                    </itemizedlist>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SRC_URI_OVERRIDES_PACKAGE_ARCH'><glossterm>SRC_URI_OVERRIDES_PACKAGE_ARCH</glossterm>
-            <info>
-                SRC_URI_OVERRIDES_PACKAGE_ARCH[doc] = "By default, the OpenEmbedded build system automatically detects whether SRC_URI contains files that are machine-specific. If so, the build system automatically changes PACKAGE_ARCH. Setting this variable to '0' disables this behavior."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    By default, the OpenEmbedded build system automatically detects whether
-                    <filename><link linkend='var-SRC_URI'>SRC_URI</link></filename>
-                    contains files that are machine-specific.
-                    If so, the build system automatically changes
-                    <filename><link linkend='var-PACKAGE_ARCH'>PACKAGE_ARCH</link></filename>.
-                    Setting this variable to "0" disables this behavior.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SRCDATE'><glossterm>SRCDATE</glossterm>
-            <info>
-                SRCDATE[doc] = "The date of the source code used to build the package. This variable applies only if the source was fetched from a Source Code Manager (SCM)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The date of the source code used to build the package.
-                    This variable applies only if the source was fetched from a Source Code Manager (SCM).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SRCPV'><glossterm>SRCPV</glossterm>
-            <info>
-                SRCPV[doc] = "Returns the version string of the current package. This string is used to help define the value of PV."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Returns the version string of the current package.
-                    This string is used to help define the value of
-                    <link linkend='var-PV'><filename>PV</filename></link>.
-                </para>
-
-                <para>
-                    The <filename>SRCPV</filename> variable is defined in the
-                    <filename>meta/conf/bitbake.conf</filename> configuration
-                    file in the
-                    <link linkend='source-directory'>Source Directory</link>
-                    as follows:
-                    <literallayout class='monospaced'>
-     SRCPV = "${@bb.fetch2.get_srcrev(d)}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    Recipes that need to define <filename>PV</filename> do so
-                    with the help of the <filename>SRCPV</filename>.
-                    For example, the <filename>ofono</filename> recipe
-                    (<filename>ofono_git.bb</filename>) located in
-                    <filename>meta/recipes-connectivity</filename> in the
-                    Source Directory defines <filename>PV</filename> as
-                    follows:
-                    <literallayout class='monospaced'>
-     PV = "0.12-git${SRCPV}"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SRCREV'><glossterm>SRCREV</glossterm>
-            <info>
-                SRCREV[doc] = "The revision of the source code used to build the package. This variable applies to Subversion, Git, Mercurial, and Bazaar only."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The revision of the source code used to build the package.
-                    This variable applies to Subversion, Git, Mercurial, and
-                    Bazaar only.
-                    Note that if you want to build a fixed revision and you
-                    want to avoid performing a query on the remote repository
-                    every time BitBake parses your recipe, you should specify
-                    a <filename>SRCREV</filename> that is a
-                    full revision identifier and not just a tag.
-                    <note>
-                        For information on limitations when inheriting the
-                        latest revision of software using
-                        <filename>SRCREV</filename>, see the
-                        <link linkend='var-AUTOREV'><filename>AUTOREV</filename></link>
-                        variable description and the
-                        "<ulink url='&YOCTO_DOCS_DEV_URL;#automatically-incrementing-a-binary-package-revision-number'>Automatically Incrementing a Binary Package Revision Number</ulink>"
-                        section, which is in the Yocto Project Development
-                        Tasks Manual.
-                    </note>
-                </para>
-
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SSTATE_DIR'><glossterm>SSTATE_DIR</glossterm>
-            <info>
-                SSTATE_DIR[doc] = "The directory for the shared state cache."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The directory for the shared state cache.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SSTATE_MIRROR_ALLOW_NETWORK'><glossterm>SSTATE_MIRROR_ALLOW_NETWORK</glossterm>
-            <info>
-                SSTATE_MIRROR_ALLOW_NETWORK[doc] = "If set to "1", allows fetches from mirrors that are specified in SSTATE_MIRRORS to work even when fetching from the network is disabled by setting BB_NO_NETWORK to "1"."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    If set to "1", allows fetches from
-                    mirrors that are specified in
-                    <link linkend='var-SSTATE_MIRRORS'><filename>SSTATE_MIRRORS</filename></link>
-                    to work even when fetching from the network is
-                    disabled by setting <filename>BB_NO_NETWORK</filename>
-                    to "1".
-                    Using the
-                    <filename>SSTATE_MIRROR_ALLOW_NETWORK</filename>
-                    variable is useful if you have set
-                    <filename>SSTATE_MIRRORS</filename> to point to an
-                    internal server for your shared state cache, but
-                    you want to disable any other fetching from the network.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SSTATE_MIRRORS'><glossterm>SSTATE_MIRRORS</glossterm>
-            <info>
-                SSTATE_MIRRORS[doc] = "Configures the OpenEmbedded build system to search other mirror locations for prebuilt cache data objects before building out the data. You can specify a filesystem directory or a remote URL such as HTTP or FTP."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Configures the OpenEmbedded build system to search other
-                    mirror locations for prebuilt cache data objects before
-                    building out the data.
-                    This variable works like fetcher
-                    <link linkend='var-MIRRORS'><filename>MIRRORS</filename></link>
-                    and <link linkend='var-PREMIRRORS'><filename>PREMIRRORS</filename></link>
-                    and points to the cache locations to check for the shared
-                    state (sstate) objects.
-                </para>
-
-                <para>
-                    You can specify a filesystem directory or a remote URL such
-                    as HTTP or FTP.
-                    The locations you specify need to contain the shared state
-                    cache (sstate-cache) results from previous builds.
-                    The sstate-cache you point to can also be from builds on
-                    other machines.
-                </para>
-
-                <para>
-                    When pointing to sstate build artifacts on another machine
-                    that uses a different GCC version for native builds,
-                    you must configure <filename>SSTATE_MIRRORS</filename>
-                    with a regular expression that maps local search paths
-                    to server paths.
-                    The paths need to take into account
-                    <link linkend='var-NATIVELSBSTRING'><filename>NATIVELSBSTRING</filename></link>
-                    set by the
-                    <link linkend='ref-classes-uninative'><filename>uninative</filename></link>
-                    class.
-                    For example, the following maps the local search path
-                    <filename>universal-4.9</filename> to the server-provided
-                    path <replaceable>server_url_sstate_path</replaceable>:
-                    <literallayout class='monospaced'>
-     SSTATE_MIRRORS ?= file://universal-4.9/(.*) http://<replaceable>server_url_sstate_path</replaceable>/universal-4.8/\1 \n
-                    </literallayout>
-                </para>
-
-                <para>
-                    If a mirror uses the same structure as
-                    <link linkend='var-SSTATE_DIR'><filename>SSTATE_DIR</filename></link>,
-                    you need to add
-                    "PATH" at the end as shown in the examples below.
-                    The build system substitutes the correct path within the
-                    directory structure.
-                    <literallayout class='monospaced'>
-     SSTATE_MIRRORS ?= "\
-     file://.* http://<replaceable>someserver</replaceable>.tld/share/sstate/PATH;downloadfilename=PATH \n \
-     file://.* file:///<replaceable>some-local-dir</replaceable>/sstate/PATH"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SSTATE_SCAN_FILES'><glossterm>SSTATE_SCAN_FILES</glossterm>
-            <info>
-                SSTATE_SCAN_FILES[doc] = "Controls the list of files the OpenEmbedded build system scans for hardcoded installation paths."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Controls the list of files the OpenEmbedded build system
-                    scans for hardcoded installation paths. The variable uses a
-                    space-separated list of filenames (not paths) with standard
-                    wildcard characters allowed.
-                </para>
-
-                <para>
-                    During a build, the OpenEmbedded build system creates a
-                    shared state (sstate) object during the first stage of
-                    preparing the sysroots. That object is scanned for
-                    hardcoded paths for original installation locations.
-                    The list of files that are scanned for paths is controlled
-                    by the <filename>SSTATE_SCAN_FILES</filename> variable.
-                    Typically, recipes add files they want to be scanned to the
-                    value of <filename>SSTATE_SCAN_FILES</filename> rather than
-                    the variable being comprehensively set. The
-                    <link linkend='ref-classes-sstate'><filename>sstate</filename></link>
-                    class specifies the default list of files.
-                </para>
-
-                <para>
-                    For details on the process, see the
-                    <link linkend='ref-classes-staging'><filename>staging</filename></link>
-                    class.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_BASE_LIBDIR_NATIVE'><glossterm>STAGING_BASE_LIBDIR_NATIVE</glossterm>
-            <info>
-                STAGING_BASE_LIBDIR_NATIVE[doc] = "Specifies the path to the /lib subdirectory of the sysroot directory for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the <filename>/lib</filename>
-                    subdirectory of the sysroot directory for the
-                    build host.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_BASELIBDIR'><glossterm>STAGING_BASELIBDIR</glossterm>
-            <info>
-                STAGING_BASELIBDIR[doc] = "Specifies the path to the /lib subdirectory of the sysroot directory for the target for which the current recipe is being built (STAGING_DIR_HOST)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the <filename>/lib</filename>
-                    subdirectory of the sysroot directory for the target
-                    for which the current recipe is being built
-                    (<link linkend='var-STAGING_DIR_HOST'><filename>STAGING_DIR_HOST</filename></link>).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_BINDIR'><glossterm>STAGING_BINDIR</glossterm>
-            <info>
-                STAGING_BINDIR[doc] = "Specifies the path to the /usr/bin subdirectory of the sysroot directory for the target for which the current recipe is being built (STAGING_DIR_HOST)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the
-                    <filename>/usr/bin</filename> subdirectory of the
-                    sysroot directory for the target for which the current
-                    recipe is being built
-                    (<link linkend='var-STAGING_DIR_HOST'><filename>STAGING_DIR_HOST</filename></link>).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_BINDIR_CROSS'><glossterm>STAGING_BINDIR_CROSS</glossterm>
-            <info>
-                STAGING_BINDIR_CROSS[doc] = "Specifies the path to the directory containing binary configuration scripts. These scripts provide configuration information for other software that wants to make use of libraries or include files provided by the software associated with the script."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the directory containing binary
-                    configuration scripts.
-                    These scripts provide configuration information for
-                    other software that wants to make use of libraries or
-                    include files provided by the software associated with
-                    the script.
-                    <note>
-                        This style of build configuration has been largely
-                        replaced by <filename>pkg-config</filename>.
-                        Consequently, if <filename>pkg-config</filename>
-                        is supported by the library to which you are linking,
-                        it is recommended you use
-                        <filename>pkg-config</filename> instead of a
-                        provided configuration script.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_BINDIR_NATIVE'><glossterm>STAGING_BINDIR_NATIVE</glossterm>
-            <info>
-                STAGING_BINDIR_NATIVE[doc] = "Specifies the path to the /usr/bin subdirectory of the sysroot directory for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the
-                    <filename>/usr/bin</filename> subdirectory of the
-                    sysroot directory for the build host.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_DATADIR'><glossterm>STAGING_DATADIR</glossterm>
-            <info>
-                STAGING_DATADIR[doc] = "Specifies the path to the /usr/share subdirectory of the sysroot directory for the target for which the current recipe is being built (STAGING_DIR_HOST)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                     Specifies the path to the <filename>/usr/share</filename>
-                     subdirectory of the sysroot directory for the target
-                     for which the current recipe is being built
-                     (<link linkend='var-STAGING_DIR_HOST'><filename>STAGING_DIR_HOST</filename></link>).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_DATADIR_NATIVE'><glossterm>STAGING_DATADIR_NATIVE</glossterm>
-            <info>
-                STAGING_DATADIR_NATIVE[doc] = "Specifies the path to the /usr/share subdirectory of the sysroot directory for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the <filename>/usr/share</filename>
-                    subdirectory of the sysroot directory for the build host.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_DIR'><glossterm>STAGING_DIR</glossterm>
-            <info>
-                STAGING_DIR[doc] = "Helps construct the recipe-sysroots directory, which is used during packaging."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Helps construct the <filename>recipe-sysroots</filename>
-                    directory, which is used during packaging.
-                </para>
-
-                <para>
-                    For information on how staging for recipe-specific
-                    sysroots occurs, see the
-                    <link linkend='ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></link>
-                    task, the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#new-sharing-files-between-recipes'>Sharing Files Between Recipes</ulink>"
-                    section in the Yocto Project Development Tasks Manual, the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#configuration-compilation-and-staging-dev-environment'>Configuration, Compilation, and Staging</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual,
-                    and the
-                    <link linkend='var-SYSROOT_DIRS'><filename>SYSROOT_DIRS</filename></link>
-                    variable.
-                    <note>
-                        Recipes should never write files directly under
-                        the <filename>STAGING_DIR</filename> directory because
-                        the OpenEmbedded build system
-                        manages the directory automatically.
-                        Instead, files should be installed to
-                        <filename>${</filename><link linkend='var-D'><filename>D</filename></link><filename>}</filename>
-                        within your recipe's
-                        <link linkend='ref-tasks-install'><filename>do_install</filename></link>
-                        task and then the OpenEmbedded build system will
-                        stage a subset of those files into the sysroot.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_DIR_HOST'><glossterm>STAGING_DIR_HOST</glossterm>
-            <info>
-                STAGING_DIR_HOST[doc] = "Specifies the path to the sysroot directory for the system that the component is built to run on."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the sysroot directory for the system
-                    on which the component is built to run (the system that
-                    hosts the component).
-                    For most recipes, this sysroot is the one in which that
-                    recipe's
-                    <link linkend='ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></link>
-                    task copies files.
-                    Exceptions include <filename>-native</filename> recipes,
-                    where the <filename>do_populate_sysroot</filename> task
-                    instead uses
-                    <link linkend='var-STAGING_DIR_NATIVE'><filename>STAGING_DIR_NATIVE</filename></link>.
-                    Depending on the type of recipe and the build target,
-                    <filename>STAGING_DIR_HOST</filename> can have the
-                    following values:
-                    <itemizedlist>
-                        <listitem><para>
-                            For recipes building for the target machine, the
-                            value is
-                            "${<link linkend='var-STAGING_DIR'>STAGING_DIR</link>}/${<link linkend='var-MACHINE'>MACHINE</link>}".
-                            </para></listitem>
-                        <listitem><para>
-                            For native recipes building for the build host, the
-                            value is empty given the assumption that when
-                            building for the build host, the build host's own
-                            directories should be used.
-                            <note>
-                                <para><filename>-native</filename> recipes are
-                                not installed into host paths like such as
-                                <filename>/usr</filename>.
-                                Rather, these recipes are installed into
-                                <filename>STAGING_DIR_NATIVE</filename>.
-                                When compiling <filename>-native</filename>
-                                recipes, standard build environment variables
-                                such as
-                                <link linkend='var-CPPFLAGS'><filename>CPPFLAGS</filename></link>
-                                and
-                                <link linkend='var-CFLAGS'><filename>CFLAGS</filename></link>
-                                are set up so that both host paths and
-                                <filename>STAGING_DIR_NATIVE</filename> are
-                                searched for libraries and headers using, for
-                                example, GCC's <filename>-isystem</filename>
-                                option.</para>
-
-                                <para>Thus, the emphasis is that the
-                                <filename>STAGING_DIR*</filename> variables
-                                should be viewed as input variables by tasks
-                                such as
-                                <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>,
-                                <link linkend='ref-tasks-compile'><filename>do_compile</filename></link>,
-                                and
-                                <link linkend='ref-tasks-install'><filename>do_install</filename></link>.
-                                Having the real system root correspond to
-                                <filename>STAGING_DIR_HOST</filename> makes
-                                conceptual sense for
-                                <filename>-native</filename> recipes, as
-                                they make use of host headers and libraries.
-                                </para>
-                            </note>
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_DIR_NATIVE'><glossterm>STAGING_DIR_NATIVE</glossterm>
-            <info>
-                STAGING_DIR_NATIVE[doc] = "Specifies the path to the sysroot directory used when building components that run on the build host itself."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the sysroot directory used when
-                    building components that run on the build host itself.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_DIR_TARGET'><glossterm>STAGING_DIR_TARGET</glossterm>
-            <info>
-                STAGING_DIR_TARGET[doc] = "Specifies the path to the sysroot used for the system for which the component generates code."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the sysroot used for the system for
-                    which the component generates code.
-                    For components that do not generate code, which is the
-                    majority, <filename>STAGING_DIR_TARGET</filename> is set
-                    to match
-                    <link linkend='var-STAGING_DIR_HOST'><filename>STAGING_DIR_HOST</filename></link>.
-                </para>
-
-                <para>
-                    Some recipes build binaries that can run on the target
-                    system but those binaries in turn generate code for
-                    another different system (e.g. cross-canadian recipes).
-                    Using terminology from GNU, the primary system is referred
-                    to as the "HOST" and the secondary, or different, system is
-                    referred to as the "TARGET".
-                    Thus, the binaries run on the "HOST" system
-                    and generate binaries for the "TARGET" system.
-                    The <filename>STAGING_DIR_HOST</filename> variable points
-                    to the sysroot used for the "HOST" system, while
-                    <filename>STAGING_DIR_TARGET</filename>
-                    points to the sysroot used for the "TARGET" system.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_ETCDIR_NATIVE'><glossterm>STAGING_ETCDIR_NATIVE</glossterm>
-            <info>
-                STAGING_ETCDIR_NATIVE[doc] = "Specifies the path to the /etc subdirectory of the sysroot directory for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the <filename>/etc</filename>
-                    subdirectory of the sysroot directory for the
-                    build host.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_EXECPREFIXDIR'><glossterm>STAGING_EXECPREFIXDIR</glossterm>
-            <info>
-                STAGING_EXECPREFIXDIR[doc] = "Specifies the path to the /usr subdirectory of the sysroot directory for the target for which the current recipe is being built (STAGING_DIR_HOST)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the <filename>/usr</filename>
-                    subdirectory of the sysroot directory for the target
-                    for which the current recipe is being built
-                    (<link linkend='var-STAGING_DIR_HOST'><filename>STAGING_DIR_HOST</filename></link>).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_INCDIR'><glossterm>STAGING_INCDIR</glossterm>
-            <info>
-                STAGING_INCDIR[doc] = "Specifies the path to the /usr/include subdirectory of the sysroot directory for the target for which the current recipe being built (STAGING_DIR_HOST)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the
-                    <filename>/usr/include</filename> subdirectory of the
-                    sysroot directory for the target for which the current
-                    recipe being built
-                    (<link linkend='var-STAGING_DIR_HOST'><filename>STAGING_DIR_HOST</filename></link>).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_INCDIR_NATIVE'><glossterm>STAGING_INCDIR_NATIVE</glossterm>
-            <info>
-                STAGING_INCDIR_NATIVE[doc] = "Specifies the path to the /usr/include subdirectory of the sysroot directory for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the <filename>/usr/include</filename>
-                    subdirectory of the sysroot directory for the build host.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_KERNEL_BUILDDIR'><glossterm>STAGING_KERNEL_BUILDDIR</glossterm>
-            <info>
-                STAGING_KERNEL_BUILDDIR[doc] = "Points to the directory containing the kernel build artifacts."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the directory containing the kernel build
-                    artifacts.
-                    Recipes building software that needs to access kernel
-                    build artifacts
-                    (e.g. <filename>systemtap-uprobes</filename>) can look in
-                    the directory specified with the
-                    <filename>STAGING_KERNEL_BUILDDIR</filename> variable to
-                    find these artifacts after the kernel has been built.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_KERNEL_DIR'><glossterm>STAGING_KERNEL_DIR</glossterm>
-            <info>
-                STAGING_KERNEL_DIR[doc] = "The directory with kernel headers that are required to build out-of-tree modules."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The directory with kernel headers that are required to build out-of-tree
-                    modules.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_LIBDIR'><glossterm>STAGING_LIBDIR</glossterm>
-            <info>
-                STAGING_LIBDIR[doc] = "Specifies the path to the /usr/lib subdirectory of the sysroot directory for the target for which the current recipe is being built (STAGING_DIR_HOST)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the <filename>/usr/lib</filename>
-                    subdirectory of the sysroot directory for the target for
-                    which the current recipe is being built
-                    (<link linkend='var-STAGING_DIR_HOST'><filename>STAGING_DIR_HOST</filename></link>).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAGING_LIBDIR_NATIVE'><glossterm>STAGING_LIBDIR_NATIVE</glossterm>
-            <info>
-                STAGING_LIBDIR_NATIVE[doc] = "Specifies the path to the /usr/lib subdirectory of the sysroot directory for the build host."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the path to the <filename>/usr/lib</filename>
-                    subdirectory of the sysroot directory for the build host.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAMP'><glossterm>STAMP</glossterm>
-            <info>
-                STAMP[doc] = "Specifies the base path used to create recipe stamp files. The path to an actual stamp file is constructed by evaluating this string and then appending additional information."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the base path used to create recipe stamp files.
-                    The path to an actual stamp file is constructed by evaluating this
-                    string and then appending additional information.
-                    Currently, the default assignment for <filename>STAMP</filename>
-                    as set in the <filename>meta/conf/bitbake.conf</filename> file
-                    is:
-                    <literallayout class='monospaced'>
-     STAMP = "${STAMPS_DIR}/${MULTIMACH_TARGET_SYS}/${PN}/${EXTENDPE}${PV}-${PR}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    For information on how BitBake uses stamp files to determine
-                    if a task should be rerun, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#stamp-files-and-the-rerunning-of-tasks'>Stamp Files and the Rerunning of Tasks</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual.
-                </para>
-
-                <para>
-                    See <link linkend='var-STAMPS_DIR'><filename>STAMPS_DIR</filename></link>,
-                    <link linkend='var-MULTIMACH_TARGET_SYS'><filename>MULTIMACH_TARGET_SYS</filename></link>,
-                    <link linkend='var-PN'><filename>PN</filename></link>,
-                    <link linkend='var-EXTENDPE'><filename>EXTENDPE</filename></link>,
-                    <link linkend='var-PV'><filename>PV</filename></link>, and
-                    <link linkend='var-PR'><filename>PR</filename></link> for related variable
-                    information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STAMPS_DIR'><glossterm>STAMPS_DIR</glossterm>
-            <info>
-                STAMPS_DIR[doc] = "Specifies the base directory in which the OpenEmbedded build system places stamps."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the base directory in which the OpenEmbedded
-                    build system places stamps.
-                    The default directory is
-                    <filename>${TMPDIR}/stamps</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-STRIP'><glossterm>STRIP</glossterm>
-            <info>
-                STRIP[doc] = "Minimal command and arguments to run 'strip' (strip symbols)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The minimal command and arguments to run
-                    <filename>strip</filename>, which is used to strip
-                    symbols.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SUMMARY'><glossterm>SUMMARY</glossterm>
-            <info>
-                SUMMARY[doc] = "The short (80 characters or less) summary of the binary package for packaging systems such as opkg, rpm, or dpkg. By default, SUMMARY is used to define the DESCRIPTION variable if DESCRIPTION is not set in the recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The short (72 characters or less) summary of the binary package for packaging
-                    systems such as <filename>opkg</filename>, <filename>rpm</filename>, or
-                    <filename>dpkg</filename>.
-                    By default, <filename>SUMMARY</filename> is used to define
-                    the <link linkend='var-DESCRIPTION'><filename>DESCRIPTION</filename></link>
-                    variable if <filename>DESCRIPTION</filename> is not set
-                    in the recipe.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SVNDIR'><glossterm>SVNDIR</glossterm>
-            <info>
-                SVNDIR[doc] = "The directory where Subversion checkouts are stored."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The directory in which files checked out of a Subversion
-                    system are stored.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSLINUX_DEFAULT_CONSOLE'><glossterm>SYSLINUX_DEFAULT_CONSOLE</glossterm>
-            <info>
-                SYSLINUX_DEFAULT_CONSOLE[doc] = "Specifies the kernel boot default console."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the kernel boot default console.
-                    If you want to use a console other than the default,
-                    set this variable in your recipe as follows where "X" is
-                    the console number you want to use:
-                    <literallayout class='monospaced'>
-     SYSLINUX_DEFAULT_CONSOLE = "console=ttyX"
-                    </literallayout>
-                </para>
-
-                <para>
-                    The
-                    <link linkend='ref-classes-syslinux'><filename>syslinux</filename></link>
-                    class initially sets this variable to null but then checks
-                    for a value later.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSLINUX_OPTS'><glossterm>SYSLINUX_OPTS</glossterm>
-            <info>
-                SYSLINUX_OPTS[doc] = "Lists additional options to add to the syslinux file."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Lists additional options to add to the syslinux file.
-                    You need to set this variable in your recipe.
-                    If you want to list multiple options, separate the options
-                    with a semicolon character (<filename>;</filename>).
-                </para>
-
-                <para>
-                    The
-                    <link linkend='ref-classes-syslinux'><filename>syslinux</filename></link>
-                    class uses this variable to create a set of options.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSLINUX_SERIAL'><glossterm>SYSLINUX_SERIAL</glossterm>
-            <info>
-                SYSLINUX_SERIAL[doc] = "Specifies the alternate serial port or turns it off."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the alternate serial port or turns it off.
-                    To turn off serial, set this variable to an empty string
-                    in your recipe.
-                    The variable's default value is set in the
-                    <link linkend='ref-classes-syslinux'><filename>syslinux</filename></link>
-                    class as follows:
-                    <literallayout class='monospaced'>
-     SYSLINUX_SERIAL ?= "0 115200"
-                    </literallayout>
-                </para>
-
-                <para>
-                    The class checks for and uses the variable as needed.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSLINUX_SPLASH'><glossterm>SYSLINUX_SPLASH</glossterm>
-            <info>
-                SYSLINUX_SPLASH[doc] = "An .LSS file used as the background for the VGA boot menu when you use the boot menu."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    An <filename>.LSS</filename> file used as the background
-                    for the VGA boot menu when you use the boot menu.
-                    You need to set this variable in your recipe.
-                </para>
-
-                <para>
-                    The
-                    <link linkend='ref-classes-syslinux'><filename>syslinux</filename></link>
-                    class checks for this variable and if found, the
-                    OpenEmbedded build system installs the splash screen.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSLINUX_SERIAL_TTY'><glossterm>SYSLINUX_SERIAL_TTY</glossterm>
-            <info>
-                SYSLINUX_SERIAL_TTY[doc] = "Specifies the alternate console=tty... kernel boot argument."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the alternate console=tty... kernel boot argument.
-                    The variable's default value is set in the
-                    <link linkend='ref-classes-syslinux'><filename>syslinux</filename></link>
-                    class as follows:
-                    <literallayout class='monospaced'>
-     SYSLINUX_SERIAL_TTY ?= "console=ttyS0,115200"
-                    </literallayout>
-                </para>
-
-                <para>
-                    The class checks for and uses the variable as needed.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSROOT_DESTDIR'><glossterm>SYSROOT_DESTDIR</glossterm>
-            <info>
-                SYSROOT_DESTDIR[doc] = "Points to the temporary work directory (default ${WORKDIR}/sysroot-destdir) where the files populated into the sysroot are assembled during the do_populate_sysroot task."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the temporary directory under the work directory
-                    (default
-                    "<filename>${</filename><link linkend='var-WORKDIR'><filename>WORKDIR</filename></link><filename>}/sysroot-destdir</filename>")
-                    where the files populated into the sysroot are assembled
-                    during the
-                    <link linkend='ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></link>
-                    task.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSROOT_DIRS'><glossterm>SYSROOT_DIRS</glossterm>
-            <info>
-                SYSROOT_DIRS[doc] = "Directories that are staged into the sysroot by the do_populate_sysroot task."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Directories that are staged into the sysroot by the
-                    <link linkend='ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></link>
-                    task.
-                    By default, the following directories are staged:
-                    <literallayout class='monospaced'>
-     SYSROOT_DIRS = " \
-         ${includedir} \
-         ${libdir} \
-         ${base_libdir} \
-         ${nonarch_base_libdir} \
-         ${datadir} \
-     "
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSROOT_DIRS_BLACKLIST'><glossterm>SYSROOT_DIRS_BLACKLIST</glossterm>
-            <info>
-                SYSROOT_DIRS_BLACKLIST[doc] = "Directories that are not staged into the sysroot by the do_populate_sysroot task."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Directories that are not staged into the sysroot by the
-                    <link linkend='ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></link>
-                    task.
-                    You can use this variable to exclude certain subdirectories
-                    of directories listed in
-                    <link linkend='var-SYSROOT_DIRS'><filename>SYSROOT_DIRS</filename></link>
-                    from staging.
-                    By default, the following directories are not staged:
-                    <literallayout class='monospaced'>
-     SYSROOT_DIRS_BLACKLIST = " \
-         ${mandir} \
-         ${docdir} \
-         ${infodir} \
-         ${datadir}/locale \
-         ${datadir}/applications \
-         ${datadir}/fonts \
-         ${datadir}/pixmaps \
-     "
-                     </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSROOT_DIRS_NATIVE'><glossterm>SYSROOT_DIRS_NATIVE</glossterm>
-            <info>
-                SYSROOT_DIRS_NATIVE[doc] = "Extra directories staged into the sysroot by the do_populate_sysroot task for -native recipes, in addition to those specified in SYSROOT_DIRS."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Extra directories staged into the sysroot by the
-                    <link linkend='ref-tasks-populate_sysroot'><filename>do_populate_sysroot</filename></link>
-                    task for <filename>-native</filename> recipes, in addition
-                    to those specified in
-                    <link linkend='var-SYSROOT_DIRS'><filename>SYSROOT_DIRS</filename></link>.
-                    By default, the following extra directories are staged:
-                    <literallayout class='monospaced'>
-     SYSROOT_DIRS_NATIVE = " \
-         ${bindir} \
-         ${sbindir} \
-         ${base_bindir} \
-         ${base_sbindir} \
-         ${libexecdir} \
-         ${sysconfdir} \
-         ${localstatedir} \
-     "
-                    </literallayout>
-                    <note>
-                        Programs built by <filename>-native</filename> recipes
-                        run directly from the sysroot
-                        (<link linkend='var-STAGING_DIR_NATIVE'><filename>STAGING_DIR_NATIVE</filename></link>),
-                        which is why additional directories containing program
-                        executables and supporting files need to be staged.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSROOT_PREPROCESS_FUNCS'><glossterm>SYSROOT_PREPROCESS_FUNCS</glossterm>
-            <info>
-                SYSROOT_PREPROCESS_FUNCS[doc] = "A list of functions to execute after files are staged into the sysroot. These functions are usually used to apply additional processing on the staged files, or to stage additional files."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of functions to execute after files are staged into
-                    the sysroot.
-                    These functions are usually used to apply additional
-                    processing on the staged files, or to stage additional
-                    files.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSTEMD_AUTO_ENABLE'><glossterm>SYSTEMD_AUTO_ENABLE</glossterm>
-            <info>
-                SYSTEMD_AUTO_ENABLE[doc] = "For recipes that inherit the systemd class, this variable specifies whether the specified service in SYSTEMD_SERVICE should start automatically or not."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-systemd'><filename>systemd</filename></link>
-                    class, this variable specifies whether the specified service
-                    in
-                    <link linkend='var-SYSTEMD_SERVICE'><filename>SYSTEMD_SERVICE</filename></link>
-                    should start automatically or not.
-                    By default, the service is enabled to automatically start
-                    at boot time.
-                    The default setting is in the
-                    <link linkend='ref-classes-systemd'><filename>systemd</filename></link>
-                    class as follows:
-                    <literallayout class='monospaced'>
-     SYSTEMD_AUTO_ENABLE ??= "enable"
-                    </literallayout>
-                </para>
-
-                <para>
-                    You can disable the service by setting the variable to
-                    "disable".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSTEMD_BOOT_CFG'><glossterm>SYSTEMD_BOOT_CFG</glossterm>
-            <info>
-                SYSTEMD_BOOT_CFG[doc] = "When EFI_PROVIDER is set to "systemd-boot", the SYSTEMD_BOOT_CFG variable specifies the configuration file that should be used."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When
-                    <link linkend='var-EFI_PROVIDER'><filename>EFI_PROVIDER</filename></link>
-                    is set to "systemd-boot", the
-                    <filename>SYSTEMD_BOOT_CFG</filename> variable specifies the
-                    configuration file that should be used.
-                    By default, the
-                    <link linkend='ref-classes-systemd-boot'><filename>systemd-boot</filename></link>
-                    class sets the <filename>SYSTEMD_BOOT_CFG</filename> as
-                    follows:
-                    <literallayout class='monospaced'>
-     SYSTEMD_BOOT_CFG ?= "${<link linkend='var-S'>S</link>}/loader.conf"
-                    </literallayout>
-                </para>
-
-                <para>
-                    For information on Systemd-boot, see the
-                    <ulink url='http://www.freedesktop.org/wiki/Software/systemd/systemd-boot/'>Systemd-boot documentation</ulink>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSTEMD_BOOT_ENTRIES'><glossterm>SYSTEMD_BOOT_ENTRIES</glossterm>
-            <info>
-                SYSTEMD_BOOT_ENTRIES[doc] = "When EFI_PROVIDER is set to "systemd-boot", the SYSTEMD_BOOT_ENTRIES variable specifies a list of entry files (*.conf) to install that contain one boot entry per file."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When
-                    <link linkend='var-EFI_PROVIDER'><filename>EFI_PROVIDER</filename></link>
-                    is set to "systemd-boot", the
-                    <filename>SYSTEMD_BOOT_ENTRIES</filename> variable specifies
-                    a list of entry files
-                    (<filename>*.conf</filename>) to install that contain
-                    one boot entry per file.
-                    By default, the
-                    <link linkend='ref-classes-systemd-boot'><filename>systemd-boot</filename></link>
-                    class sets the <filename>SYSTEMD_BOOT_ENTRIES</filename> as
-                    follows:
-                    <literallayout class='monospaced'>
-     SYSTEMD_BOOT_ENTRIES ?= ""
-                    </literallayout>
-                </para>
-
-                <para>
-                    For information on Systemd-boot, see the
-                    <ulink url='http://www.freedesktop.org/wiki/Software/systemd/systemd-boot/'>Systemd-boot documentation</ulink>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSTEMD_BOOT_TIMEOUT'><glossterm>SYSTEMD_BOOT_TIMEOUT</glossterm>
-            <info>
-                SYSTEMD_BOOT_TIMEOUT[doc] = "When EFI_PROVIDER is set to "systemd-boot", the SYSTEMD_BOOT_TIMEOUT variable specifies the boot menu timeout in seconds."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When
-                    <link linkend='var-EFI_PROVIDER'><filename>EFI_PROVIDER</filename></link>
-                    is set to "systemd-boot", the
-                    <filename>SYSTEMD_BOOT_TIMEOUT</filename> variable specifies
-                    the boot menu timeout in seconds.
-                    By default, the
-                    <link linkend='ref-classes-systemd-boot'><filename>systemd-boot</filename></link>
-                    class sets the <filename>SYSTEMD_BOOT_TIMEOUT</filename> as
-                    follows:
-                    <literallayout class='monospaced'>
-     SYSTEMD_BOOT_TIMEOUT ?= "10"
-                    </literallayout>
-                </para>
-
-                <para>
-                    For information on Systemd-boot, see the
-                    <ulink url='http://www.freedesktop.org/wiki/Software/systemd/systemd-boot/'>Systemd-boot documentation</ulink>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSTEMD_PACKAGES'><glossterm>SYSTEMD_PACKAGES</glossterm>
-            <info>
-                SYSTEMD_PACKAGES[doc] = "For recipes that inherit the systemd class, this variable locates the systemd unit files when they are not found in the main recipe's package."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-systemd'><filename>systemd</filename></link>
-                    class, this variable locates the systemd unit files when
-                    they are not found in the main recipe's package.
-                    By default, the
-                    <filename>SYSTEMD_PACKAGES</filename> variable is set
-                    such that the systemd unit files are assumed to reside in
-                    the recipes main package:
-                    <literallayout class='monospaced'>
-     SYSTEMD_PACKAGES ?= "${PN}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    If these unit files are not in this recipe's main
-                    package, you need to use
-                    <filename>SYSTEMD_PACKAGES</filename> to list the package
-                    or packages in which the build system can find the systemd
-                    unit files.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSTEMD_SERVICE'><glossterm>SYSTEMD_SERVICE</glossterm>
-            <info>
-                SYSTEMD_SERVICE[doc] = "For recipes that inherit the systemd class, this variable specifies the systemd service name for a package."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-systemd'><filename>systemd</filename></link>
-                    class, this variable specifies the systemd service name for
-                    a package.
-                </para>
-
-                <para>
-                    When you specify this file in your recipe, use a package
-                    name override to indicate the package to which the value
-                    applies.
-                    Here is an example from the connman recipe:
-                    <literallayout class='monospaced'>
-     SYSTEMD_SERVICE_${PN} = "connman.service"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-SYSVINIT_ENABLED_GETTYS'><glossterm>SYSVINIT_ENABLED_GETTYS</glossterm>
-            <info>
-                SYSVINIT_ENABLED_GETTYS[doc] = "Specifies which virtual terminals should run a getty, the default is '1'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When using
-                    <ulink url='&YOCTO_DOCS_DEV_URL;#new-recipe-enabling-system-services'>SysVinit</ulink>,
-                    specifies a space-separated list of the virtual terminals
-                    that should run a
-                    <ulink url='http://en.wikipedia.org/wiki/Getty_%28Unix%29'>getty</ulink>
-                    (allowing login), assuming
-                    <link linkend='var-USE_VT'><filename>USE_VT</filename></link>
-                    is not set to "0".
-                </para>
-
-                <para>
-                    The default value for
-                    <filename>SYSVINIT_ENABLED_GETTYS</filename> is "1"
-                    (i.e. only run a getty on the first virtual terminal).
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-t'><title>T</title>
-
-        <glossentry id='var-T'><glossterm>T</glossterm>
-            <info>
-                T[doc] = "This variable points to a directory were BitBake places temporary files, which consist mostly of task logs and scripts, when building a particular recipe."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    This variable points to a directory were BitBake places
-                    temporary files, which consist mostly of task logs and
-                    scripts, when building a particular recipe.
-                    The variable is typically set as follows:
-                    <literallayout class='monospaced'>
-     T = "${WORKDIR}/temp"
-                    </literallayout>
-                </para>
-
-                <para>
-                    The <link linkend='var-WORKDIR'><filename>WORKDIR</filename></link>
-                    is the directory into which BitBake unpacks and builds the
-                    recipe.
-                    The default <filename>bitbake.conf</filename> file sets this variable.</para>
-                    <para>The <filename>T</filename> variable is not to be confused with
-                    the <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link> variable,
-                    which points to the root of the directory tree where BitBake
-                    places the output of an entire build.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TARGET_ARCH'><glossterm>TARGET_ARCH</glossterm>
-            <info>
-                TARGET_ARCH[doc] = "The architecture of the device being built. The OpenEmbedded build system supports the following architectures: arm, mips, ppc, x86, x86-64."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The target machine's architecture.
-                    The OpenEmbedded build system supports many
-                    architectures.
-                    Here is an example list of architectures supported.
-                    This list is by no means complete as the architecture
-                    is configurable:
-                    <literallayout class='monospaced'>
-     arm
-     i586
-     x86_64
-     powerpc
-     powerpc64
-     mips
-     mipsel
-                    </literallayout>
-                </para>
-
-                <para>
-                    For additional information on machine architectures, see
-                    the
-                    <link linkend='var-TUNE_ARCH'><filename>TUNE_ARCH</filename></link>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TARGET_AS_ARCH'><glossterm>TARGET_AS_ARCH</glossterm>
-            <info>
-                TARGET_AS_ARCH[doc] = "Specifies architecture-specific assembler flags for the target system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies architecture-specific assembler flags for the
-                    target system.
-                    <filename>TARGET_AS_ARCH</filename> is initialized from
-                    <link linkend='var-TUNE_ASARGS'><filename>TUNE_ASARGS</filename></link>
-                    by default in the BitBake configuration file
-                    (<filename>meta/conf/bitbake.conf</filename>):
-                    <literallayout class='monospaced'>
-     TARGET_AS_ARCH = "${TUNE_ASARGS}"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TARGET_CC_ARCH'><glossterm>TARGET_CC_ARCH</glossterm>
-            <info>
-                TARGET_CC_ARCH[doc] = "Specifies architecture-specific C compiler flags for the target system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies architecture-specific C compiler flags for the
-                    target system.
-                    <filename>TARGET_CC_ARCH</filename> is initialized from
-                    <link linkend='var-TUNE_CCARGS'><filename>TUNE_CCARGS</filename></link>
-                    by default.
-                    <note>
-                        It is a common workaround to append
-                        <link linkend='var-LDFLAGS'><filename>LDFLAGS</filename></link>
-                        to <filename>TARGET_CC_ARCH</filename>
-                        in recipes that build software for the target that
-                        would not otherwise respect the exported
-                        <filename>LDFLAGS</filename> variable.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TARGET_CC_KERNEL_ARCH'><glossterm>TARGET_CC_KERNEL_ARCH</glossterm>
-            <info>
-                TARGET_CC_KERNEL_ARCH[doc] = "This is a specific kernel compiler flag for a CPU or Application Binary Interface (ABI) tune."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    This is a specific kernel compiler flag for a CPU or
-                    Application Binary Interface (ABI) tune.
-                    The flag is used rarely and only for cases where a
-                    userspace
-                    <link linkend='var-TUNE_CCARGS'><filename>TUNE_CCARGS</filename></link>
-                    is not compatible with the kernel compilation.
-                    The <filename>TARGET_CC_KERNEL_ARCH</filename> variable
-                    allows the kernel (and associated modules) to use a
-                    different configuration.
-                    See the
-                    <filename>meta/conf/machine/include/arm/feature-arm-thumb.inc</filename>
-                    file in the
-                    <link linkend='source-directory'>Source Directory</link>
-                    for an example.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TARGET_CFLAGS'><glossterm>TARGET_CFLAGS</glossterm>
-            <info>
-                TARGET_CFLAGS[doc] = "Flags passed to the C compiler for the target system. This variable evaluates to the same as CFLAGS."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the C compiler when building
-                    for the target.
-                    When building in the target context,
-                    <link linkend='var-CFLAGS'><filename>CFLAGS</filename></link>
-                    is set to the value of this variable by default.
-                </para>
-
-                <para>
-                    Additionally, the SDK's environment setup script sets
-                    the <filename>CFLAGS</filename> variable in the environment
-                    to the <filename>TARGET_CFLAGS</filename> value so that
-                    executables built using the SDK also have the flags
-                    applied.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TARGET_CPPFLAGS'><glossterm>TARGET_CPPFLAGS</glossterm>
-            <info>
-                TARGET_CPPFLAGS[doc] = "Specifies the flags to pass to the C pre-processor (i.e. to both the C and the C++ compilers) when building for the target."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the C pre-processor
-                    (i.e. to both the C and the C++ compilers) when building
-                    for the target.
-                    When building in the target context,
-                    <link linkend='var-CPPFLAGS'><filename>CPPFLAGS</filename></link>
-                    is set to the value of this variable by default.
-                </para>
-
-                <para>
-                    Additionally, the SDK's environment setup script sets
-                    the <filename>CPPFLAGS</filename> variable in the
-                    environment to the <filename>TARGET_CPPFLAGS</filename>
-                    value so that executables built using the SDK also have
-                    the flags applied.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TARGET_CXXFLAGS'><glossterm>TARGET_CXXFLAGS</glossterm>
-            <info>
-                TARGET_CXXFLAGS[doc] = "Specifies the flags to pass to the C++ compiler when building for the target."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the C++ compiler when
-                    building for the target.
-                    When building in the target context,
-                    <link linkend='var-CXXFLAGS'><filename>CXXFLAGS</filename></link>
-                    is set to the value of this variable by default.
-                </para>
-
-                <para>
-                    Additionally, the SDK's environment setup script sets
-                    the <filename>CXXFLAGS</filename> variable in the
-                    environment to the <filename>TARGET_CXXFLAGS</filename>
-                    value so that executables built using the SDK also have
-                    the flags applied.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TARGET_FPU'><glossterm>TARGET_FPU</glossterm>
-            <info>
-                TARGET_FPU[doc] = "Specifies the method for handling FPU code. For FPU-less targets, which include most ARM CPUs, the variable must be set to 'soft'. If not, the kernel emulation gets used, which results in a performance penalty."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the method for handling FPU code.
-                    For FPU-less targets, which include most ARM CPUs, the variable must be
-                    set to "soft".
-                    If not, the kernel emulation gets used, which results in a performance penalty.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TARGET_LD_ARCH'><glossterm>TARGET_LD_ARCH</glossterm>
-            <info>
-                TARGET_LD_ARCH[doc] = "Specifies architecture-specific linker flags for the target system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies architecture-specific linker flags for the
-                    target system.
-                    <filename>TARGET_LD_ARCH</filename> is initialized from
-                    <link linkend='var-TUNE_LDARGS'><filename>TUNE_LDARGS</filename></link>
-                    by default in the BitBake configuration file
-                    (<filename>meta/conf/bitbake.conf</filename>):
-                    <literallayout class='monospaced'>
-     TARGET_LD_ARCH = "${TUNE_LDARGS}"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TARGET_LDFLAGS'><glossterm>TARGET_LDFLAGS</glossterm>
-            <info>
-                TARGET_LDFLAGS[doc] = "Specifies the flags to pass to the linker when building for the target."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the flags to pass to the linker when building
-                    for the target.
-                    When building in the target context,
-                    <link linkend='var-LDFLAGS'><filename>LDFLAGS</filename></link>
-                    is set to the value of this variable by default.
-                </para>
-
-                <para>
-                    Additionally, the SDK's environment setup script sets
-                    the
-                    <link linkend='var-LDFLAGS'><filename>LDFLAGS</filename></link>
-                    variable in the environment to the
-                    <filename>TARGET_LDFLAGS</filename> value so that
-                    executables built using the SDK also have the flags
-                    applied.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TARGET_OS'><glossterm>TARGET_OS</glossterm>
-            <info>
-                TARGET_OS[doc] = "Specifies the target's operating system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the target's operating system.
-                    The variable can be set to "linux" for glibc-based systems
-                    (GNU C Library) and to "linux-musl" for musl libc.
-                    For ARM/EABI targets, "linux-gnueabi" and "linux-musleabi"
-                    possible values exist.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TARGET_PREFIX'><glossterm>TARGET_PREFIX</glossterm>
-            <info>
-                TARGET_PREFIX[doc] = "The prefix used for the toolchain binary target tools."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the prefix used for the toolchain binary target
-                    tools.
-                </para>
-
-                <para>
-                    Depending on the type of recipe and the build target,
-                    <filename>TARGET_PREFIX</filename> is set as follows:
-                    <itemizedlist>
-                        <listitem><para>
-                            For recipes building for the target machine,
-                            the value is
-                            "${<link linkend='var-TARGET_SYS'>TARGET_SYS</link>}-".
-                            </para></listitem>
-                        <listitem><para>
-                            For native recipes, the build system sets the
-                            variable to the value of
-                            <filename>BUILD_PREFIX</filename>.
-                            </para></listitem>
-                        <listitem><para>
-                            For native SDK recipes
-                            (<filename>nativesdk</filename>), the
-                            build system sets the variable to the value of
-                            <filename>SDK_PREFIX</filename>.
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TARGET_SYS'><glossterm>TARGET_SYS</glossterm>
-            <info>
-                TARGET_SYS[doc] = "The target system is comprised of TARGET_ARCH,TARGET_VENDOR and TARGET_OS."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the system, including the architecture and the
-                    operating system, for which the build is occurring in
-                    the context of the current recipe.
-                </para>
-
-                <para>
-                    The OpenEmbedded build system automatically sets this
-                    variable based on
-                    <link linkend='var-TARGET_ARCH'><filename>TARGET_ARCH</filename></link>,
-                    <link linkend='var-TARGET_VENDOR'><filename>TARGET_VENDOR</filename></link>,
-                    and
-                    <link linkend='var-TARGET_OS'><filename>TARGET_OS</filename></link>
-                    variables.
-                    <note>
-                        You do not need to set the
-                        <filename>TARGET_SYS</filename> variable yourself.
-                    </note>
-                </para>
-
-                <para>
-                    Consider these two examples:
-                    <itemizedlist>
-                        <listitem><para>
-                            Given a native recipe on a 32-bit, x86 machine
-                            running Linux, the value is "i686-linux".
-                            </para></listitem>
-                        <listitem><para>
-                            Given a recipe being built for a little-endian,
-                            MIPS target running Linux, the value might be
-                            "mipsel-linux".
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TARGET_VENDOR'><glossterm>TARGET_VENDOR</glossterm>
-            <info>
-                TARGET_VENDOR[doc] = "The name of the target vendor."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the name of the target vendor.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TCLIBC'><glossterm>TCLIBC</glossterm>
-            <info>
-                TCLIBC[doc] = "Specifies GNU standard C library (libc) variant to use during the build process. You can select 'glibc', 'musl' or 'newlib'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the GNU standard C library
-                    (<filename>libc</filename>) variant to use during the
-                    build process.
-                    This variable replaces <filename>POKYLIBC</filename>,
-                    which is no longer supported.
-                </para>
-
-                <para>
-                    You can select "glibc", "musl", "newlib", or "baremetal"
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TCLIBCAPPEND'><glossterm>TCLIBCAPPEND</glossterm>
-            <info>
-                TCLIBCAPPEND[doc] = "Specifies a suffix appended to TMPDIR that identifies the libc variant for the build."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a suffix to be appended onto the
-                    <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>
-                    value.
-                    The suffix identifies the <filename>libc</filename> variant
-                    for building.
-                    When you are building for multiple variants with the same
-                    <link linkend='build-directory'>Build Directory</link>,
-                    this mechanism ensures that output for different
-                    <filename>libc</filename> variants is kept separate to
-                    avoid potential conflicts.
-                </para>
-
-                <para>
-                    In the <filename>defaultsetup.conf</filename> file, the
-                    default value of <filename>TCLIBCAPPEND</filename> is
-                    "-${TCLIBC}".
-                    However, distros such as poky, which normally only support
-                    one <filename>libc</filename> variant, set
-                    <filename>TCLIBCAPPEND</filename> to "" in their distro
-                    configuration file resulting in no suffix being applied.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TCMODE'><glossterm>TCMODE</glossterm>
-            <info>
-                TCMODE[doc] = "Enables an external toolchain (where provided by an additional layer) if set to a value other than 'default'."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the toolchain selector.
-                    <filename>TCMODE</filename> controls the characteristics
-                    of the generated packages and images by telling the
-                    OpenEmbedded build system which toolchain profile to use.
-                    By default, the OpenEmbedded build system builds its own
-                    internal toolchain.
-                    The variable's default value is "default", which uses
-                    that internal toolchain.
-                    <note>
-                        If <filename>TCMODE</filename> is set to a value
-                        other than "default", then it is your responsibility
-                        to ensure that the toolchain is compatible with the
-                        default toolchain.
-                        Using older or newer versions of these components
-                        might cause build problems.
-                        See the Release Notes for the Yocto Project release
-                        for the specific components with which the toolchain
-                        must be compatible.
-                        To access the Release Notes, go to the
-                        <ulink url='&YOCTO_HOME_URL;/software-overview/downloads/'>Downloads</ulink>
-                        page on the Yocto Project website and click on the
-                        "RELEASE INFORMATION" link for the appropriate
-                        release.
-                    </note>
-                </para>
-
-                <para>
-                    The <filename>TCMODE</filename> variable is similar to
-                    <link linkend='var-TCLIBC'><filename>TCLIBC</filename></link>,
-                    which controls the variant of the GNU standard C library
-                    (<filename>libc</filename>) used during the build process:
-                    <filename>glibc</filename> or <filename>musl</filename>.
-                </para>
-
-                <para>
-                    With additional layers, it is possible to use a pre-compiled
-                    external toolchain.
-                    One example is the Sourcery G++ Toolchain.
-                    The support for this toolchain resides in the separate
-                    <trademark class='registered'>Mentor Graphics</trademark>
-                    <filename>meta-sourcery</filename> layer at
-                    <ulink url='http://github.com/MentorEmbedded/meta-sourcery/'></ulink>.
-                </para>
-
-                <para>
-                    The layer's <filename>README</filename> file contains
-                    information on how to use the Sourcery G++ Toolchain as
-                    an external toolchain.
-                    In summary, you must be sure to add the layer to your
-                    <filename>bblayers.conf</filename> file in front of the
-                    <filename>meta</filename> layer and then set the
-                    <filename>EXTERNAL_TOOLCHAIN</filename>
-                    variable in your <filename>local.conf</filename> file
-                    to the location in which you installed the toolchain.
-                </para>
-
-                <para>
-                    The fundamentals used for this example apply to any
-                    external toolchain.
-                    You can use <filename>meta-sourcery</filename> as a
-                    template for adding support for other external toolchains.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TEST_EXPORT_DIR'><glossterm>TEST_EXPORT_DIR</glossterm>
-            <info>
-                TEST_EXPORT_DIR[doc] = "The location the OpenEmbedded build system uses to export tests when the TEST_EXPORT_ONLY variable is set to "1"."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The location the OpenEmbedded build system uses to export
-                    tests when the
-                    <link linkend='var-TEST_EXPORT_ONLY'><filename>TEST_EXPORT_ONLY</filename></link>
-                    variable is set to "1".
-                </para>
-
-                <para>
-                    The <filename>TEST_EXPORT_DIR</filename> variable defaults
-                    to <filename>"${TMPDIR}/testimage/${PN}"</filename>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TEST_EXPORT_ONLY'><glossterm>TEST_EXPORT_ONLY</glossterm>
-            <info>
-                TEST_EXPORT_ONLY[doc] = "Specifies to export the tests only. Set this variable to "1" if you do not want to run the tests but you want them to be exported in a manner that you to run them outside of the build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies to export the tests only.
-                    Set this variable to "1" if you do not want to run the
-                    tests but you want them to be exported in a manner that
-                    you to run them outside of the build system.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TEST_LOG_DIR'><glossterm>TEST_LOG_DIR</glossterm>
-            <info>
-                TEST_LOG_DIR[doc] = "Holds the SSH log and the boot log for QEMU machines. The TEST_LOG_DIR variable defaults to "${WORKDIR}/testimage"."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Holds the SSH log and the boot log for QEMU machines.
-                    The <filename>TEST_LOG_DIR</filename> variable defaults
-                    to <filename>"${WORKDIR}/testimage"</filename>.
-                    <note>
-                        Actual test results reside in the task log
-                        (<filename>log.do_testimage</filename>), which is in
-                        the <filename>${WORKDIR}/temp/</filename> directory.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TEST_POWERCONTROL_CMD'><glossterm>TEST_POWERCONTROL_CMD</glossterm>
-            <info>
-                TEST_POWERCONTROL_CMD[doc] = "For automated hardware testing, specifies the command to use to control the power of the target machine under test"
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    For automated hardware testing, specifies the command to
-                    use to control the power of the target machine under test.
-                    Typically, this command would point to a script that
-                    performs the appropriate action (e.g. interacting
-                    with a web-enabled power strip).
-                    The specified command should expect to receive as the last
-                    argument "off", "on" or "cycle" specifying to power off,
-                    on, or cycle (power off and then power on) the device,
-                    respectively.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TEST_POWERCONTROL_EXTRA_ARGS'><glossterm>TEST_POWERCONTROL_EXTRA_ARGS</glossterm>
-            <info>
-                TEST_POWERCONTROL_EXTRA_ARGS[doc] = "For automated hardware testing, specifies additional arguments to pass through to the command specified in TEST_POWERCONTROL_CMD"
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    For automated hardware testing, specifies additional
-                    arguments to pass through to the command specified in
-                    <link linkend='var-TEST_POWERCONTROL_CMD'><filename>TEST_POWERCONTROL_CMD</filename></link>.
-                    Setting <filename>TEST_POWERCONTROL_EXTRA_ARGS</filename>
-                    is optional.
-                    You can use it if you wish, for example, to separate the
-                    machine-specific and non-machine-specific parts of the
-                    arguments.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TEST_QEMUBOOT_TIMEOUT'><glossterm>TEST_QEMUBOOT_TIMEOUT</glossterm>
-            <info>
-                TEST_QEMUBOOT_TIMEOUT[doc] = "The time in seconds allowed for an image to boot before automated runtime tests begin to run against an image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The time in seconds allowed for an image to boot before
-                    automated runtime tests begin to run against an
-                    image.
-                    The default timeout period to allow the boot process to
-                    reach the login prompt is 500 seconds.
-                    You can specify a different value in the
-                    <filename>local.conf</filename> file.
-                </para>
-
-                <para>
-                    For more information on testing images, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#performing-automated-runtime-testing'>Performing Automated Runtime Testing</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TEST_SERIALCONTROL_CMD'><glossterm>TEST_SERIALCONTROL_CMD</glossterm>
-            <info>
-                TEST_SERIALCONTROL_CMD[doc] = "For automated hardware testing, specifies the command to use to connect to the serial console of the target machine under test."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    For automated hardware testing, specifies the command
-                    to use to connect to the serial console of the target
-                    machine under test.
-                    This command simply needs to connect to the serial console
-                    and forward that connection to standard input and output
-                    as any normal terminal program does.
-                </para>
-
-                <para>
-                    For example, to use the Picocom terminal program on
-                    serial device <filename>/dev/ttyUSB0</filename> at
-                    115200bps, you would set the variable as follows:
-                    <literallayout class='monospaced'>
-     TEST_SERIALCONTROL_CMD = "picocom /dev/ttyUSB0 -b 115200"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TEST_SERIALCONTROL_EXTRA_ARGS'><glossterm>TEST_SERIALCONTROL_EXTRA_ARGS</glossterm>
-            <info>
-                TEST_SERIALCONTROL_EXTRA_ARGS[doc] = "For automated hardware testing, specifies additional arguments to pass through to the command specified in TEST_SERIALCONTROL_CMD."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    For automated hardware testing, specifies additional
-                    arguments to pass through to the command specified in
-                    <link linkend='var-TEST_SERIALCONTROL_CMD'><filename>TEST_SERIALCONTROL_CMD</filename></link>.
-                    Setting <filename>TEST_SERIALCONTROL_EXTRA_ARGS</filename>
-                    is optional.
-                    You can use it if you wish, for example, to separate the
-                    machine-specific and non-machine-specific parts of the
-                    command.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TEST_SERVER_IP'><glossterm>TEST_SERVER_IP</glossterm>
-            <info>
-                TEST_SERVER_IP[doc] = "The IP address of the build machine (host machine). This IP address is usually automatically detected."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The IP address of the build machine (host machine).
-                    This IP address is usually automatically detected.
-                    However, if detection fails, this variable needs to be set
-                    to the IP address of the build machine (i.e. where
-                    the build is taking place).
-                    <note>
-                        The <filename>TEST_SERVER_IP</filename> variable
-                        is only used for a small number of tests such as
-                        the "dnf" test suite, which needs to download
-                        packages from
-                        <filename>WORKDIR/oe-rootfs-repo</filename>.
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TEST_TARGET'><glossterm>TEST_TARGET</glossterm>
-            <info>
-                TEST_TARGET[doc] = "For automated runtime testing, specifies the method of deploying the image and running tests on the target machine."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the target controller to use when running tests
-                    against a test image.
-                    The default controller to use is "qemu":
-                    <literallayout class='monospaced'>
-     TEST_TARGET = "qemu"
-                    </literallayout>
-                </para>
-
-                <para>
-                    A target controller is a class that defines how an
-                    image gets deployed on a target and how a target is started.
-                    A layer can extend the controllers by adding a module
-                    in the layer's <filename>/lib/oeqa/controllers</filename>
-                    directory and by inheriting the
-                    <filename>BaseTarget</filename> class, which is an abstract
-                    class that cannot be used as a value of
-                    <filename>TEST_TARGET</filename>.
-                </para>
-
-                <para>
-                    You can provide the following arguments with
-                    <filename>TEST_TARGET</filename>:
-                    <itemizedlist>
-                        <listitem><para><emphasis>"qemu":</emphasis>
-                            Boots a QEMU image and runs the tests.
-                            See the
-                            "<ulink url='&YOCTO_DOCS_DEV_URL;#qemu-image-enabling-tests'>Enabling Runtime Tests on QEMU</ulink>"
-                            section in the Yocto Project Development Tasks
-                            Manual for more information.
-                            </para></listitem>
-                        <listitem><para><emphasis>"simpleremote":</emphasis>
-                            Runs the tests on target hardware that is already
-                            up and running.
-                            The hardware can be on the network or it can be
-                            a device running an image on QEMU.
-                            You must also set
-                            <link linkend='var-TEST_TARGET_IP'><filename>TEST_TARGET_IP</filename></link>
-                            when you use "simpleremote".
-                            <note>
-                                This argument is defined in
-                                <filename>meta/lib/oeqa/controllers/simpleremote.py</filename>.
-                            </note>
-                            </para></listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    For information on running tests on hardware, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#hardware-image-enabling-tests'>Enabling Runtime Tests on Hardware</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TEST_TARGET_IP'><glossterm>TEST_TARGET_IP</glossterm>
-            <info>
-                TEST_TARGET_IP[doc] = "The IP address of your hardware under test."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The IP address of your hardware under test.
-                    The <filename>TEST_TARGET_IP</filename> variable has no
-                    effect when
-                    <link linkend='var-TEST_TARGET'><filename>TEST_TARGET</filename></link>
-                    is set to "qemu".
-                </para>
-
-                <para>
-                    When you specify the IP address, you can also include a
-                    port.
-                    Here is an example:
-                    <literallayout class='monospaced'>
-     TEST_TARGET_IP = "192.168.1.4:2201"
-                    </literallayout>
-                    Specifying a port is useful when SSH is started on a
-                    non-standard port or in cases when your hardware under test
-                    is behind a firewall or network that is not directly
-                    accessible from your host and you need to do port address
-                    translation.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TEST_SUITES'><glossterm>TEST_SUITES</glossterm>
-            <info>
-                TEST_SUITES[doc] = "An ordered list of tests (modules) to run against an image when performing automated runtime testing."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    An ordered list of tests (modules) to run against
-                    an image when performing automated runtime testing.
-                </para>
-
-                <para>
-                    The OpenEmbedded build system provides a core set of tests
-                    that can be used against images.
-                    <note>
-                        Currently, there is only support for running these tests
-                        under QEMU.
-                    </note>
-                    Tests include <filename>ping</filename>,
-                    <filename>ssh</filename>, <filename>df</filename> among
-                    others.
-                    You can add your own tests to the list of tests by
-                    appending <filename>TEST_SUITES</filename> as follows:
-                    <literallayout class='monospaced'>
-     TEST_SUITES_append = " <replaceable>mytest</replaceable>"
-                    </literallayout>
-                    Alternatively, you can provide the "auto" option to
-                    have all applicable tests run against the image.
-                    <literallayout class='monospaced'>
-     TEST_SUITES_append = " auto"
-                    </literallayout>
-                    Using this option causes the build system to automatically
-                    run tests that are applicable to the image.
-                    Tests that are not applicable are skipped.
-                </para>
-
-                <para>
-                    The order in which tests are run is important.
-                    Tests that depend on another test must appear later in the
-                    list than the test on which they depend.
-                    For example, if you append the list of tests with two
-                    tests (<filename>test_A</filename> and
-                    <filename>test_B</filename>) where
-                    <filename>test_B</filename> is dependent on
-                    <filename>test_A</filename>, then you must order the tests
-                    as follows:
-                    <literallayout class='monospaced'>
-     TEST_SUITES = " test_A test_B"
-                    </literallayout>
-                </para>
-
-                <para>
-                    For more information on testing images, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#performing-automated-runtime-testing'>Performing Automated Runtime Testing</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TESTIMAGE_AUTO'><glossterm>TESTIMAGE_AUTO</glossterm>
-            <info>
-                TESTIMAGE_AUTO[doc] = "Enables automatic testing of an image once it is built."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Automatically runs the series of automated tests for
-                    images when an image is successfully built.
-                    Setting <filename>TESTIMAGE_AUTO</filename> to "1"
-                    causes any image that successfully builds to automatically
-                    boot under QEMU.
-                    Using the variable also adds in dependencies so that any
-                    SDK for which testing is requested is automatically built
-                    first.
-                </para>
-
-                <para>
-                    These tests are written in Python making use of the
-                    <filename>unittest</filename> module, and the majority of
-                    them run commands on the target system over
-                    <filename>ssh</filename>.
-                    You can set this variable to "1" in your
-                    <filename>local.conf</filename> file in the
-                    <link linkend='build-directory'>Build Directory</link>
-                    to have the OpenEmbedded build system automatically run
-                    these tests after an image successfully builds:
-                    <literallayout class='monospaced'>
-     TESTIMAGE_AUTO = "1"
-                    </literallayout>
-                    For more information on enabling, running, and writing
-                    these tests, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#performing-automated-runtime-testing'>Performing Automated Runtime Testing</ulink>"
-                    section in the Yocto Project Development Tasks Manual and
-                    the
-                    "<link linkend='ref-classes-testimage*'><filename>testimage*.bbclass</filename></link>"
-                    section.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-THISDIR'><glossterm>THISDIR</glossterm>
-            <info>
-                THISDIR[doc] = "The directory in which the file BitBake is currently parsing is located."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The directory in which the file BitBake is currently
-                    parsing is located.
-                    Do not manually set this variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TIME'><glossterm>TIME</glossterm>
-            <info>
-                TIME[doc] = "The time the build was started using HMS format."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The time the build was started.
-                    Times appear using the hour, minute, and second (HMS)
-                    format (e.g. "140159" for one minute and fifty-nine
-                    seconds past 1400 hours).
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TMPDIR'><glossterm>TMPDIR</glossterm>
-            <info>
-                TMPDIR[doc] = "The temporary directory the OpenEmbedded build system uses when it does its work building images. By default, the TMPDIR variable is named tmp within the Build Directory."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    This variable is the base directory the OpenEmbedded
-                    build system uses for all build output and intermediate
-                    files (other than the shared state cache).
-                    By default, the <filename>TMPDIR</filename> variable points
-                    to <filename>tmp</filename> within the
-                    <link linkend='build-directory'>Build Directory</link>.
-                </para>
-
-                <para>
-                    If you want to establish this directory in a location other
-                    than the default, you can uncomment and edit the following
-                    statement in the
-                    <filename>conf/local.conf</filename> file in the
-                    <link linkend='source-directory'>Source Directory</link>:
-                    <literallayout class='monospaced'>
-     #TMPDIR = "${TOPDIR}/tmp"
-                    </literallayout>
-                    An example use for this scenario is to set
-                    <filename>TMPDIR</filename> to a local disk, which does
-                    not use NFS, while having the Build Directory use NFS.
-                </para>
-
-                <para>
-                    The filesystem used by <filename>TMPDIR</filename> must
-                    have standard filesystem semantics (i.e. mixed-case files
-                    are unique, POSIX file locking, and persistent inodes).
-                    Due to various issues with NFS and bugs in some
-                    implementations, NFS does not meet this minimum
-                    requirement.
-                    Consequently, <filename>TMPDIR</filename> cannot be on
-                    NFS.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TOOLCHAIN_HOST_TASK'><glossterm>TOOLCHAIN_HOST_TASK</glossterm>
-            <info>
-                TOOLCHAIN_HOST_TASK[doc] = "This variable lists packages the OpenEmbedded build system uses when building an SDK, which contains a cross-development environment."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    This variable lists packages the OpenEmbedded build system
-                    uses when building an SDK, which contains a
-                    cross-development environment.
-                    The packages specified by this variable are part of the
-                    toolchain set that runs on the
-                    <link linkend='var-SDKMACHINE'><filename>SDKMACHINE</filename></link>,
-                    and each package should usually have the prefix
-                    <filename>nativesdk-</filename>.
-                    For example, consider the following command when
-                    building an SDK:
-                    <literallayout class='monospaced'>
-     $ bitbake -c populate_sdk <replaceable>imagename</replaceable>
-                    </literallayout>
-                    In this case, a default list of packages is set in this
-                    variable, but you can add additional packages to the list.
-                    See the
-                    "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-adding-individual-packages'>Adding Individual Packages to the Standard SDK</ulink>"
-                    section in the Yocto Project Application Development and
-                    the Extensible Software Development Kit (eSDK) manual
-                    for more information.
-                </para>
-
-                <para>
-                    For background information on cross-development toolchains
-                    in the Yocto Project development environment, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#cross-development-toolchain-generation'>Cross-Development Toolchain Generation</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual.
-                    For information on setting up a cross-development
-                    environment, see the
-                    <ulink url='&YOCTO_DOCS_SDK_URL;'>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</ulink>
-                    manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TOOLCHAIN_OUTPUTNAME'><glossterm>TOOLCHAIN_OUTPUTNAME</glossterm>
-            <info>
-                TOOLCHAIN_OUTPUTNAME[doc] = "Defines the name used for the toolchain output."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    This variable defines the name used for the toolchain
-                    output.
-                    The
-                    <link linkend='ref-classes-populate-sdk-*'><filename>populate_sdk_base</filename></link>
-                    class sets the
-                    <filename>TOOLCHAIN_OUTPUTNAME</filename> variable as
-                    follows:
-                    <literallayout class='monospaced'>
-     TOOLCHAIN_OUTPUTNAME ?= "${SDK_NAME}-toolchain-${SDK_VERSION}"
-                    </literallayout>
-                    See the
-                    <link linkend='var-SDK_NAME'><filename>SDK_NAME</filename></link>
-                    and
-                    <link linkend='var-SDK_VERSION'><filename>SDK_VERSION</filename></link>
-                    variables for additional information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TOOLCHAIN_TARGET_TASK'><glossterm>TOOLCHAIN_TARGET_TASK</glossterm>
-            <info>
-                TOOLCHAIN_TARGET_TASK[doc] = "This variable lists packages the OpenEmbedded build system uses when it creates the target part of an SDK, which includes libraries and headers."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    This variable lists packages the OpenEmbedded build system
-                    uses when it creates the target part of an SDK
-                    (i.e. the part built for the target hardware), which
-                    includes libraries and headers.
-                    Use this variable to add individual packages to the
-                    part of the SDK that runs on the target.
-                    See the
-                    "<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-adding-individual-packages'>Adding Individual Packages to the Standard SDK</ulink>"
-                    section in the Yocto Project Application Development and
-                    the Extensible Software Development Kit (eSDK) manual for
-                    more information.
-                </para>
-
-                <para>
-                    For background information on cross-development toolchains
-                    in the Yocto Project development environment, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#cross-development-toolchain-generation'>Cross-Development Toolchain Generation</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual.
-                    For information on setting up a cross-development
-                    environment, see the
-                    <ulink url='&YOCTO_DOCS_SDK_URL;'>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</ulink>
-                    manual.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TOPDIR'><glossterm>TOPDIR</glossterm>
-            <info>
-                TOPDIR[doc] = "The Build Directory. BitBake automatically sets this variable. The OpenEmbedded build system uses the Build Directory when building images."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The top-level
-                    <link linkend='build-directory'>Build Directory</link>.
-                    BitBake automatically sets this variable when you
-                    initialize your build environment using
-                    <link linkend='structure-core-script'><filename>&OE_INIT_FILE;</filename></link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TRANSLATED_TARGET_ARCH'><glossterm>TRANSLATED_TARGET_ARCH</glossterm>
-            <info>
-                TRANSLATED_TARGET_ARCH[doc] = "A sanitized version of TARGET_ARCH. This variable is used where the architecture is needed in a value where underscores are not allowed."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A sanitized version of
-                    <link linkend='var-TARGET_ARCH'><filename>TARGET_ARCH</filename></link>.
-                    This variable is used where the architecture is needed in
-                    a value where underscores are not allowed, for example
-                    within package filenames.
-                    In this case, dash characters replace any underscore
-                    characters used in <filename>TARGET_ARCH</filename>.
-                </para>
-
-                <para>
-                    Do not edit this variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TUNE_ARCH'><glossterm>TUNE_ARCH</glossterm>
-            <info>
-                TUNE_ARCH[doc] = "The GNU canonical architecture for a specific architecture (i.e. arm, armeb, mips, mips64, and so forth)."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The GNU canonical architecture for a specific architecture
-                    (i.e. <filename>arm</filename>,
-                    <filename>armeb</filename>,
-                    <filename>mips</filename>,
-                    <filename>mips64</filename>, and so forth).
-                    BitBake uses this value to setup configuration.
-                </para>
-
-                <para>
-                    <filename>TUNE_ARCH</filename> definitions are specific to
-                    a given architecture.
-                    The definitions can be a single static definition, or
-                    can be dynamically adjusted.
-                    You can see details for a given CPU family by looking at
-                    the architecture's <filename>README</filename> file.
-                    For example, the
-                    <filename>meta/conf/machine/include/mips/README</filename>
-                    file in the
-                    <link linkend='source-directory'>Source Directory</link>
-                    provides information for <filename>TUNE_ARCH</filename>
-                    specific to the <filename>mips</filename> architecture.
-                </para>
-
-                <para>
-                    <filename>TUNE_ARCH</filename> is tied closely to
-                    <link linkend='var-TARGET_ARCH'><filename>TARGET_ARCH</filename></link>,
-                    which defines the target machine's architecture.
-                    The BitBake configuration file
-                    (<filename>meta/conf/bitbake.conf</filename>) sets
-                    <filename>TARGET_ARCH</filename> as follows:
-                    <literallayout class='monospaced'>
-     TARGET_ARCH = "${TUNE_ARCH}"
-                    </literallayout>
-                </para>
-
-                <para>
-                    The following list, which is by no means complete since
-                    architectures are configurable, shows supported machine
-                    architectures:
-                    <literallayout class='monospaced'>
-     arm
-     i586
-     x86_64
-     powerpc
-     powerpc64
-     mips
-     mipsel
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TUNE_ASARGS'><glossterm>TUNE_ASARGS</glossterm>
-            <info>
-                TUNE_ASARGS[doc] = "Specifies architecture-specific assembler flags for the target system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies architecture-specific assembler flags for
-                    the target system.
-                    The set of flags is based on the selected tune features.
-                    <filename>TUNE_ASARGS</filename> is set using
-                    the tune include files, which are typically under
-                    <filename>meta/conf/machine/include/</filename> and are
-                    influenced through
-                    <link linkend='var-TUNE_FEATURES'><filename>TUNE_FEATURES</filename></link>.
-                    For example, the
-                    <filename>meta/conf/machine/include/x86/arch-x86.inc</filename>
-                    file defines the flags for the x86 architecture as follows:
-                    <literallayout class='monospaced'>
-     TUNE_ASARGS += "${@bb.utils.contains("TUNE_FEATURES", "mx32", "-x32", "", d)}"
-                    </literallayout>
-                    <note>
-                        Board Support Packages (BSPs) select the tune.
-                        The selected tune, in turn, affects the tune variables
-                        themselves (i.e. the tune can supply its own
-                        set of flags).
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TUNE_CCARGS'><glossterm>TUNE_CCARGS</glossterm>
-            <info>
-                TUNE_CCARGS[doc] = "Specifies architecture-specific C compiler flags for the target system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies architecture-specific C compiler flags for
-                    the target system.
-                    The set of flags is based on the selected tune features.
-                    <filename>TUNE_CCARGS</filename> is set using
-                    the tune include files, which are typically under
-                    <filename>meta/conf/machine/include/</filename> and are
-                    influenced through
-                    <link linkend='var-TUNE_FEATURES'><filename>TUNE_FEATURES</filename></link>.
-                    <note>
-                        Board Support Packages (BSPs) select the tune.
-                        The selected tune, in turn, affects the tune variables
-                        themselves (i.e. the tune can supply its own
-                        set of flags).
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TUNE_LDARGS'><glossterm>TUNE_LDARGS</glossterm>
-            <info>
-                TUNE_LDARGS[doc] = "Specifies architecture-specific linker flags for the target system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies architecture-specific linker flags for
-                    the target system.
-                    The set of flags is based on the selected tune features.
-                    <filename>TUNE_LDARGS</filename> is set using
-                    the tune include files, which are typically under
-                    <filename>meta/conf/machine/include/</filename> and are
-                    influenced through
-                    <link linkend='var-TUNE_FEATURES'><filename>TUNE_FEATURES</filename></link>.
-                    For example, the
-                    <filename>meta/conf/machine/include/x86/arch-x86.inc</filename>
-                    file defines the flags for the x86 architecture as follows:
-                    <literallayout class='monospaced'>
-     TUNE_LDARGS += "${@bb.utils.contains("TUNE_FEATURES", "mx32", "-m elf32_x86_64", "", d)}"
-                    </literallayout>
-                    <note>
-                        Board Support Packages (BSPs) select the tune.
-                        The selected tune, in turn, affects the tune variables
-                        themselves (i.e. the tune can supply its own
-                        set of flags).
-                    </note>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TUNE_FEATURES'><glossterm>TUNE_FEATURES</glossterm>
-            <info>
-                TUNE_FEATURES[doc] = "Features used to "tune" a compiler for optimal use given a specific processor."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Features used to "tune" a compiler for optimal use
-                    given a specific processor.
-                    The features are defined within the tune files and allow
-                    arguments (i.e. <filename>TUNE_*ARGS</filename>) to be
-                    dynamically generated based on the features.
-                </para>
-
-                <para>
-                    The OpenEmbedded build system verifies the features
-                    to be sure they are not conflicting and that they are
-                    supported.
-                </para>
-
-                <para>
-                    The BitBake configuration file
-                    (<filename>meta/conf/bitbake.conf</filename>) defines
-                    <filename>TUNE_FEATURES</filename> as follows:
-                    <literallayout class='monospaced'>
-     TUNE_FEATURES ??= "${TUNE_FEATURES_tune-${DEFAULTTUNE}}"
-                    </literallayout>
-                    See the
-                    <link linkend='var-DEFAULTTUNE'><filename>DEFAULTTUNE</filename></link>
-                    variable for more information.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TUNE_PKGARCH'><glossterm>TUNE_PKGARCH</glossterm>
-            <info>
-                TUNE_PKGARCH[doc] = "The package architecture understood by the packaging system to define the architecture, ABI, and tuning of output packages."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The package architecture understood by the packaging
-                    system to define the architecture, ABI, and tuning of
-                    output packages.
-                    The specific tune is defined using the "_tune" override
-                    as follows:
-                    <literallayout class='monospaced'>
-     TUNE_PKGARCH_tune-<replaceable>tune</replaceable> = "<replaceable>tune</replaceable>"
-                    </literallayout>
-                </para>
-
-                <para>
-                    These tune-specific package architectures are defined in
-                    the machine include files.
-                    Here is an example of the "core2-32" tuning as used
-                    in the
-                    <filename>meta/conf/machine/include/tune-core2.inc</filename>
-                    file:
-                    <literallayout class='monospaced'>
-     TUNE_PKGARCH_tune-core2-32 = "core2-32"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TUNEABI'><glossterm>TUNEABI</glossterm>
-            <info>
-                TUNEABI[doc] = "An underlying ABI used by a particular tuning in a given toolchain layer. This feature allows providers using prebuilt libraries to check compatibility of a tuning against their selection of libraries."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    An underlying Application Binary Interface (ABI) used by
-                    a particular tuning in a given toolchain layer.
-                    Providers that use prebuilt libraries can use the
-                    <filename>TUNEABI</filename>,
-                    <link linkend='var-TUNEABI_OVERRIDE'><filename>TUNEABI_OVERRIDE</filename></link>,
-                    and
-                    <link linkend='var-TUNEABI_WHITELIST'><filename>TUNEABI_WHITELIST</filename></link>
-                    variables to check compatibility of tunings against their
-                    selection of libraries.
-                </para>
-
-                <para>
-                    If <filename>TUNEABI</filename> is undefined, then every
-                    tuning is allowed.
-                    See the
-                    <link linkend='ref-classes-sanity'><filename>sanity</filename></link>
-                    class to see how the variable is used.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TUNEABI_OVERRIDE'><glossterm>TUNEABI_OVERRIDE</glossterm>
-            <info>
-                TUNEABI_OVERRIDE[doc] = "If set, ignores TUNEABI_WHITELIST."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    If set, the OpenEmbedded system ignores the
-                    <link linkend='var-TUNEABI_WHITELIST'><filename>TUNEABI_WHITELIST</filename></link>
-                    variable.
-                    Providers that use prebuilt libraries can use the
-                    <filename>TUNEABI_OVERRIDE</filename>,
-                    <filename>TUNEABI_WHITELIST</filename>,
-                    and
-                    <link linkend='var-TUNEABI'><filename>TUNEABI</filename></link>
-                    variables to check compatibility of a tuning against their
-                    selection of libraries.
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='ref-classes-sanity'><filename>sanity</filename></link>
-                    class to see how the variable is used.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TUNEABI_WHITELIST'><glossterm>TUNEABI_WHITELIST</glossterm>
-            <info>
-                TUNEABI_WHITELIST[doc] = "A whitelist of permissible TUNEABI values.  If the variable is not set, all values are allowed."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A whitelist of permissible
-                    <link linkend='var-TUNEABI'><filename>TUNEABI</filename></link>
-                    values.
-                    If <filename>TUNEABI_WHITELIST</filename> is not set,
-                    all tunes are allowed.
-                    Providers that use prebuilt libraries can use the
-                    <filename>TUNEABI_WHITELIST</filename>,
-                    <link linkend='var-TUNEABI_OVERRIDE'><filename>TUNEABI_OVERRIDE</filename></link>,
-                    and <filename>TUNEABI</filename> variables to check
-                    compatibility of a tuning against their selection of
-                    libraries.
-                </para>
-
-                <para>
-                    See the
-                    <link linkend='ref-classes-sanity'><filename>sanity</filename></link>
-                    class to see how the variable is used.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TUNECONFLICTS'><glossterm>TUNECONFLICTS[<replaceable>feature</replaceable>]</glossterm>
-            <info>
-                TUNECONFLICTS[doc] = "Specifies CPU or Application Binary Interface (ABI) tuning features that conflict with specified feature."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies CPU or Application Binary Interface (ABI)
-                    tuning features that conflict with <replaceable>feature</replaceable>.
-                </para>
-
-                <para>
-                    Known tuning conflicts are specified in the machine include
-                    files in the
-                    <link linkend='source-directory'>Source Directory</link>.
-                    Here is an example from the
-                    <filename>meta/conf/machine/include/mips/arch-mips.inc</filename>
-                    include file that lists the "o32" and "n64" features as
-                    conflicting with the "n32" feature:
-                    <literallayout class='monospaced'>
-     TUNECONFLICTS[n32] = "o32 n64"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-TUNEVALID'><glossterm>TUNEVALID[<replaceable>feature</replaceable>]</glossterm>
-            <info>
-               TUNEVALID[doc] = "Descriptions, stored as flags, of valid tuning features."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a valid CPU or Application Binary Interface (ABI)
-                    tuning feature.
-                    The specified feature is stored as a flag.
-                    Valid features are specified in the machine include files
-                    (e.g. <filename>meta/conf/machine/include/arm/arch-arm.inc</filename>).
-                    Here is an example from that file:
-                    <literallayout class='monospaced'>
-     TUNEVALID[bigendian] = "Enable big-endian mode."
-                    </literallayout>
-                </para>
-
-                <para>
-                    See the machine include files in the
-                    <link linkend='source-directory'>Source Directory</link>
-                    for these features.
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-u'><title>U</title>
-
-        <glossentry id='var-UBOOT_CONFIG'><glossterm>UBOOT_CONFIG</glossterm>
-            <info>
-               UBOOT_CONFIG[doc] = "Configures the UBOOT_MACHINE and can also define IMAGE_FSTYPES for individual cases."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Configures the
-                    <link linkend='var-UBOOT_MACHINE'><filename>UBOOT_MACHINE</filename></link>
-                    and can also define
-                    <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>
-                    for individual cases.
-                </para>
-
-                <para>
-                    Following is an example from the
-                    <filename>meta-fsl-arm</filename> layer.
-                    <literallayout class='monospaced'>
-     UBOOT_CONFIG ??= "sd"
-     UBOOT_CONFIG[sd] = "mx6qsabreauto_config,sdcard"
-     UBOOT_CONFIG[eimnor] = "mx6qsabreauto_eimnor_config"
-     UBOOT_CONFIG[nand] = "mx6qsabreauto_nand_config,ubifs"
-     UBOOT_CONFIG[spinor] = "mx6qsabreauto_spinor_config"
-                    </literallayout>
-                    In this example, "sd" is selected as the configuration
-                    of the possible four for the
-                    <filename>UBOOT_MACHINE</filename>.
-                    The "sd" configuration defines "mx6qsabreauto_config"
-                    as the value for <filename>UBOOT_MACHINE</filename>, while
-                    the "sdcard" specifies the
-                    <filename>IMAGE_FSTYPES</filename> to use for the U-boot
-                    image.
-                </para>
-
-                <para>
-                    For more information on how the
-                    <filename>UBOOT_CONFIG</filename> is handled, see the
-                    <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/meta/classes/uboot-config.bbclass'><filename>uboot-config</filename></ulink>
-                    class.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_DTB_LOADADDRESS'><glossterm>UBOOT_DTB_LOADADDRESS</glossterm>
-            <info>
-               UBOOT_DTB_LOADADDRESS[doc] = "Specifies the load address for the dtb."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the load address for the dtb image used by U-boot.
-                    During FIT image creation, the
-                    <filename>UBOOT_DTB_LOADADDRESS</filename> variable is used
-                    in <filename>kernel-fitimage</filename> class to specify the
-                    load address to be used in creating the dtb sections of
-                    Image Tree Source for the FIT image.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_DTBO_LOADADDRESS'><glossterm>UBOOT_DTBO_LOADADDRESS</glossterm>
-            <info>
-               UBOOT_DTBO_LOADADDRESS[doc] = "Specifies the load address for the dtbo."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the load address for the dtbo image used by U-boot.
-                    During FIT image creation, the
-                    <filename>UBOOT_DTBO_LOADADDRESS</filename> variable is used
-                    in <filename>kernel-fitimage</filename> class to specify the
-                    load address to be used in creating the dtbo sections of
-                    Image Tree Source for the FIT image.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_ENTRYPOINT'><glossterm>UBOOT_ENTRYPOINT</glossterm>
-            <info>
-               UBOOT_ENTRYPOINT[doc] = "Specifies the entry point for the U-Boot image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the entry point for the U-Boot image.
-                    During U-Boot image creation, the
-                    <filename>UBOOT_ENTRYPOINT</filename> variable is passed
-                    as a command-line parameter to the
-                    <filename>uboot-mkimage</filename> utility.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_LOADADDRESS'><glossterm>UBOOT_LOADADDRESS</glossterm>
-            <info>
-               UBOOT_LOADADDRESS[doc] = "Specifies the load address for the U-Boot image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the load address for the U-Boot image.
-                    During U-Boot image creation, the
-                    <filename>UBOOT_LOADADDRESS</filename> variable is passed
-                    as a command-line parameter to the
-                    <filename>uboot-mkimage</filename> utility.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_LOCALVERSION'><glossterm>UBOOT_LOCALVERSION</glossterm>
-            <info>
-               UBOOT_LOCALVERSION[doc] = "Appends a string to the name of the local version of the U-Boot image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Appends a string to the name of the local version of the
-                    U-Boot image.
-                    For example, assuming the version of the U-Boot image
-                    built was "2013.10", the full version string reported by
-                    U-Boot would be "2013.10-yocto" given the following
-                    statement:
-                    <literallayout class='monospaced'>
-     UBOOT_LOCALVERSION = "-yocto"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_MACHINE'><glossterm>UBOOT_MACHINE</glossterm>
-            <info>
-               UBOOT_MACHINE[doc] = "Specifies the value passed on the make command line when building a U-Boot image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the value passed on the
-                    <filename>make</filename> command line when building
-                    a U-Boot image.
-                    The value indicates the target platform configuration.
-                    You typically set this variable from the machine
-                    configuration file (i.e.
-                    <filename>conf/machine/<replaceable>machine_name</replaceable>.conf</filename>).
-                </para>
-
-                <para>
-                    Please see the "Selection of Processor Architecture and
-                    Board Type" section in the U-Boot README for valid values
-                    for this variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_MAKE_TARGET'><glossterm>UBOOT_MAKE_TARGET</glossterm>
-            <info>
-               UBOOT_MAKE_TARGET[doc] = "Specifies the target called in the Makefile."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the target called in the
-                    <filename>Makefile</filename>.
-                    The default target is "all".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_MKIMAGE_DTCOPTS'><glossterm>UBOOT_MKIMAGE_DTCOPTS</glossterm>
-            <info>
-               UBOOT_MKIMAGE_DTCOPTS[doc] = "Options for the device tree compiler passed to mkimage '-D' feature."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Options for the device tree compiler passed to mkimage '-D'
-                    feature while creating FIT image in
-                    <filename>kernel-fitimage</filename> class.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_RD_LOADADDRESS'><glossterm>UBOOT_RD_LOADADDRESS</glossterm>
-            <info>
-               UBOOT_RD_LOADADDRESS[doc] = "Specifies the load address for the ramdisk image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the load address for the RAM disk image.
-                    During FIT image creation, the
-                    <filename>UBOOT_RD_LOADADDRESS</filename> variable is used
-                    in <filename>kernel-fitimage</filename> class to specify the
-                    load address to be used in creating the Image Tree Source for
-                    the FIT image.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_RD_ENTRYPOINT'><glossterm>UBOOT_RD_ENTRYPOINT</glossterm>
-            <info>
-               UBOOT_RD_ENTRYPOINT[doc] = "Specifies the entrypoint for the ramdisk image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the entrypoint for the RAM disk image.
-                    During FIT image creation, the
-                    <filename>UBOOT_RD_ENTRYPOINT</filename> variable is used
-                    in <filename>kernel-fitimage</filename> class to specify the
-                    entrypoint to be used in creating the Image Tree Source for
-                    the FIT image.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_SUFFIX'><glossterm>UBOOT_SUFFIX</glossterm>
-            <info>
-               UBOOT_SUFFIX[doc] = "Points to the generated U-Boot extension."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Points to the generated U-Boot extension.
-                    For example, <filename>u-boot.sb</filename> has a
-                    <filename>.sb</filename> extension.
-                </para>
-
-                <para>
-                    The default U-Boot extension is
-                    <filename>.bin</filename>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_SIGN_ENABLE'><glossterm>UBOOT_SIGN_ENABLE</glossterm>
-            <info>
-               UBOOT_SIGN_KEYDIR[doc] = "Enable signing of FIT image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Enable signing of FIT image. The default value is "0".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_SIGN_KEYDIR'><glossterm>UBOOT_SIGN_KEYDIR</glossterm>
-            <info>
-               UBOOT_SIGN_KEYDIR[doc] = "Location of the directory containing the RSA key and certificate used for signing FIT image."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Location of the directory containing the RSA key and
-                    certificate used for signing FIT image.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_SIGN_KEYNAME'><glossterm>UBOOT_SIGN_KEYNAME</glossterm>
-            <info>
-               UBOOT_SIGN_KEYNAME[doc] = "The name of keys used for signing U-boot FIT image"
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The name of keys used for signing U-boot FIT image stored in
-                    <filename><link linkend='var-UBOOT_SIGN_KEYDIR'>UBOOT_SIGN_KEYDIR</link></filename>
-                    directory. For e.g. dev.key key and dev.crt certificate
-                    stored in
-                    <filename><link linkend='var-UBOOT_SIGN_KEYDIR'>UBOOT_SIGN_KEYDIR</link></filename>
-                    directory will have
-                    <filename><link linkend='var-UBOOT_SIGN_KEYNAME'>UBOOT_SIGN_KEYNAME</link></filename>
-                    set to "dev".
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UBOOT_TARGET'><glossterm>UBOOT_TARGET</glossterm>
-            <info>
-               UBOOT_TARGET[doc] = "Specifies the target used for building U-Boot."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the target used for building U-Boot.
-                    The target is passed directly as part of the "make" command
-                    (e.g. SPL and AIS).
-                    If you do not specifically set this variable, the
-                    OpenEmbedded build process passes and uses "all" for the
-                    target during the U-Boot building process.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UNKNOWN_CONFIGURE_WHITELIST'><glossterm>UNKNOWN_CONFIGURE_WHITELIST</glossterm>
-            <info>
-               UNKNOWN_CONFIGURE_WHITELIST[doc] = "Specifies a list of options that, if reported by the configure script as being invalid, should not generate a warning during the do_configure task."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a list of options that, if reported by the
-                    configure script as being invalid, should not generate a
-                    warning during the
-                    <link linkend='ref-tasks-configure'><filename>do_configure</filename></link>
-                    task.
-                    Normally, invalid configure options are simply not passed
-                    to the configure script (e.g. should be removed from
-                    <link linkend='var-EXTRA_OECONF'><filename>EXTRA_OECONF</filename></link>
-                    or
-                    <link linkend='var-PACKAGECONFIG_CONFARGS'><filename>PACKAGECONFIG_CONFARGS</filename></link>).
-                    However, common options, for example, exist that are passed
-                    to all configure scripts at a class level that might not
-                    be valid for some configure scripts.
-                    It follows that no benefit exists in seeing a warning about
-                    these options.
-                    For these cases, the options are added to
-                    <filename>UNKNOWN_CONFIGURE_WHITELIST</filename>.
-                </para>
-
-                <para>
-                    The configure arguments check that uses
-                    <filename>UNKNOWN_CONFIGURE_WHITELIST</filename> is part
-                    of the
-                    <link linkend='ref-classes-insane'><filename>insane</filename></link>
-                    class and is only enabled if the recipe inherits the
-                    <link linkend='ref-classes-autotools'><filename>autotools</filename></link>
-                    class.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UPDATERCPN'><glossterm>UPDATERCPN</glossterm>
-            <info>
-               UPDATERCPN[doc] = "Specifies the package that contains the initscript that is enabled."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    For recipes inheriting the
-                    <link linkend='ref-classes-update-rc.d'><filename>update-rc.d</filename></link>
-                    class, <filename>UPDATERCPN</filename> specifies
-                    the package that contains the initscript that is
-                    enabled.
-                </para>
-
-                <para>
-                    The default value is "${PN}".
-                    Given that almost all recipes that install initscripts
-                    package them in the main package for the recipe, you
-                    rarely need to set this variable in individual recipes.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UPSTREAM_CHECK_GITTAGREGEX'><glossterm>UPSTREAM_CHECK_GITTAGREGEX</glossterm>
-            <info>
-               UPSTREAM_CHECK_GITTAGREGEX[doc] = "Filters relevant Git tags when fetching source from an upstream Git repository."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    You can perform a per-recipe check for what the latest
-                    upstream source code version is by calling
-                    <filename>bitbake -c checkpkg</filename> <replaceable>recipe</replaceable>.
-                    If the recipe source code is provided from Git
-                    repositories, the OpenEmbedded build system determines the
-                    latest upstream version by picking the latest tag from the
-                    list of all repository tags.
-                </para>
-
-                <para>
-                    You can use the
-                    <filename>UPSTREAM_CHECK_GITTAGREGEX</filename>
-                    variable to provide a regular expression to filter only the
-                    relevant tags should the default filter not work
-                    correctly.
-                    <literallayout class='monospaced'>
-     UPSTREAM_CHECK_GITTAGREGEX = "git_tag_regex"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UPSTREAM_CHECK_REGEX'><glossterm>UPSTREAM_CHECK_REGEX</glossterm>
-            <info>
-               UPSTREAM_CHECK_REGEX[doc] = "The regular expression the package checking system uses to parse the page pointed to by UPSTREAM_CHECK_URI."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Use the <filename>UPSTREAM_CHECK_REGEX</filename> variable
-                    to specify a different regular expression instead of the
-                    default one when the package checking system is parsing
-                    the page found using
-                    <link linkend='var-UPSTREAM_CHECK_URI'><filename>UPSTREAM_CHECK_URI</filename></link>.
-                    <literallayout class='monospaced'>
-     UPSTREAM_CHECK_REGEX = "package_regex"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-UPSTREAM_CHECK_URI'><glossterm>UPSTREAM_CHECK_URI</glossterm>
-            <info>
-               UPSTREAM_CHECK_URI[doc] = "The URL used by the package checking system to get the latest version of the package when source files are fetched from an upstream Git repository."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    You can perform a per-recipe check for what the latest
-                    upstream source code version is by calling
-                    <filename>bitbake -c checkpkg</filename> <replaceable>recipe</replaceable>.
-                    If the source code is provided from tarballs, the latest
-                    version is determined by fetching the directory listing
-                    where the tarball is and attempting to find a later tarball.
-                    When this approach does not work, you can use
-                    <filename>UPSTREAM_CHECK_URI</filename> to
-                    provide a different URI that contains the link to the
-                    latest tarball.
-                    <literallayout class='monospaced'>
-     UPSTREAM_CHECK_URI = "recipe_url"
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-USE_DEVFS'><glossterm>USE_DEVFS</glossterm>
-            <info>
-               USE_DEVFS[doc] = "Determines if devtmpfs is used for /dev population."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Determines if <filename>devtmpfs</filename> is used for
-                    <filename>/dev</filename> population.
-                    The default value used for <filename>USE_DEVFS</filename>
-                    is "1" when no value is specifically set.
-                    Typically, you would set <filename>USE_DEVFS</filename>
-                    to "0" for a statically populated <filename>/dev</filename>
-                    directory.
-                </para>
-
-                <para>
-                    See the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#selecting-dev-manager'>Selecting a Device Manager</ulink>"
-                    section in the Yocto Project Development Tasks Manual for
-                    information on how to use this variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-USE_VT'><glossterm>USE_VT</glossterm>
-            <info>
-               USE_VT[doc] = "When using SysVinit, determines whether or not to run a getty on any virtual terminals in order to enable logging in through those terminals."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When using
-                    <ulink url='&YOCTO_DOCS_DEV_URL;#new-recipe-enabling-system-services'>SysVinit</ulink>,
-                    determines whether or not to run a
-                    <ulink url='http://en.wikipedia.org/wiki/Getty_%28Unix%29'>getty</ulink>
-                    on any virtual terminals in order to enable logging in
-                    through those terminals.
-                </para>
-
-                <para>
-                    The default value used for <filename>USE_VT</filename>
-                    is "1" when no default value is specifically set.
-                    Typically, you would set <filename>USE_VT</filename>
-                    to "0" in the machine configuration file for machines
-                    that do not have a graphical display attached and
-                    therefore do not need virtual terminal functionality.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-USER_CLASSES'><glossterm>USER_CLASSES</glossterm>
-            <info>
-               USER_CLASSES[doc] = "List of additional classes to use when building images that enable extra features."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    A list of classes to globally inherit.
-                    These classes are used by the OpenEmbedded build system
-                    to enable extra features (e.g.
-                    <filename>buildstats</filename>,
-                    <filename>image-mklibs</filename>, and so forth).
-                </para>
-
-                <para>
-                    The default list is set in your
-                    <filename>local.conf</filename> file:
-                    <literallayout class='monospaced'>
-     USER_CLASSES ?= "buildstats image-mklibs image-prelink"
-                    </literallayout>
-                    For more information, see
-                    <filename>meta-poky/conf/local.conf.sample</filename> in
-                    the
-                    <link linkend='source-directory'>Source Directory</link>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-USERADD_ERROR_DYNAMIC'><glossterm>USERADD_ERROR_DYNAMIC</glossterm>
-            <info>
-               USERADD_ERROR_DYNAMIC[doc] = "If set to 'error', forces the OpenEmbedded build system to produce an error if the user identification (uid) and group identification (gid) values are not defined in any of the files listed in USERADD_UID_TABLES and USERADD_GID_TABLES. If set to 'warn', a warning will be issued instead."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-
-                    If set to <filename>error</filename>, forces the
-                    OpenEmbedded build system to produce an error if the user
-                    identification (<filename>uid</filename>) and group
-                    identification (<filename>gid</filename>) values are not
-                    defined in any of the files listed
-                    in <link linkend='var-USERADD_UID_TABLES'><filename>USERADD_UID_TABLES</filename></link>
-                    and <link linkend='var-USERADD_GID_TABLES'><filename>USERADD_GID_TABLES</filename></link>. If
-                    set to <filename>warn</filename>, a warning will be issued
-                    instead.
-                </para>
-
-                <para>
-                    The default behavior for the build system is to dynamically
-                    apply <filename>uid</filename> and
-                    <filename>gid</filename> values.
-                    Consequently, the <filename>USERADD_ERROR_DYNAMIC</filename>
-                    variable is by default not set.
-                    If you plan on using statically assigned
-                    <filename>gid</filename> and <filename>uid</filename>
-                    values, you should set
-                    the <filename>USERADD_ERROR_DYNAMIC</filename> variable in
-                    your <filename>local.conf</filename> file as
-                    follows:
-                    <literallayout class='monospaced'>
-     USERADD_ERROR_DYNAMIC = "error"
-                    </literallayout>
-                    Overriding the default behavior implies you are going to
-                    also take steps to set static <filename>uid</filename> and
-                    <filename>gid</filename> values through use of the
-                    <link linkend='var-USERADDEXTENSION'><filename>USERADDEXTENSION</filename></link>,
-                    <link linkend='var-USERADD_UID_TABLES'><filename>USERADD_UID_TABLES</filename></link>,
-                    and
-                    <link linkend='var-USERADD_GID_TABLES'><filename>USERADD_GID_TABLES</filename></link>
-                    variables.
-                </para>
-
-                <note>
-                    There is a difference in behavior between
-                    setting <filename>USERADD_ERROR_DYNAMIC</filename>
-                    to <filename>error</filename> and setting it
-                    to <filename>warn</filename>. When it is set
-                    to <filename>warn</filename>, the build system will report a
-                    warning for every undefined <filename>uid</filename> and
-                    <filename>gid</filename> in any recipe. But when it is set
-                    to <filename>error</filename>, it will only report errors
-                    for recipes that are actually built. This saves you from
-                    having to add static IDs for recipes that you know will
-                    never be built.
-                </note>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-USERADD_GID_TABLES'><glossterm>USERADD_GID_TABLES</glossterm>
-            <info>
-               USERADD_GID_TABLES[doc] = "Specifies a password file to use for obtaining static group identification (gid) values when the OpenEmbedded build system adds a group to the system during package installation."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a password file to use for obtaining static
-                    group identification (<filename>gid</filename>) values
-                    when the OpenEmbedded build system adds a group to the
-                    system during package installation.
-                </para>
-
-                <para>
-                    When applying static group identification
-                    (<filename>gid</filename>) values, the OpenEmbedded build
-                    system looks in
-                    <link linkend='var-BBPATH'><filename>BBPATH</filename></link>
-                    for a <filename>files/group</filename> file and then applies
-                    those <filename>uid</filename> values.
-                    Set the variable as follows in your
-                    <filename>local.conf</filename> file:
-                    <literallayout class='monospaced'>
-     USERADD_GID_TABLES = "files/group"
-                    </literallayout>
-                </para>
-
-                <note>
-                    Setting the
-                    <link linkend='var-USERADDEXTENSION'><filename>USERADDEXTENSION</filename></link>
-                    variable to "useradd-staticids" causes the build system
-                    to use static <filename>gid</filename> values.
-                </note>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-USERADD_PACKAGES'><glossterm>USERADD_PACKAGES</glossterm>
-            <info>
-               USERADD_PACKAGES[doc] = "When a recipe inherits the useradd class, this variable specifies the individual packages within the recipe that require users and/or groups to be added."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-useradd'><filename>useradd</filename></link>
-                    class, this variable
-                    specifies the individual packages within the recipe that
-                    require users and/or groups to be added.
-                </para>
-
-                <para>
-                    You must set this variable if the recipe inherits the
-                    class.
-                    For example, the following enables adding a user for the
-                    main package in a recipe:
-                    <literallayout class='monospaced'>
-     USERADD_PACKAGES = "${PN}"
-                    </literallayout>
-                    <note>
-                        It follows that if you are going to use the
-                        <filename>USERADD_PACKAGES</filename> variable,
-                        you need to set one or more of the
-                        <link linkend='var-USERADD_PARAM'><filename>USERADD_PARAM</filename></link>,
-                        <link linkend='var-GROUPADD_PARAM'><filename>GROUPADD_PARAM</filename></link>,
-                        or
-                        <link linkend='var-GROUPMEMS_PARAM'><filename>GROUPMEMS_PARAM</filename></link>
-                        variables.
-                    </note>
-                </para>
-
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-USERADD_PARAM'><glossterm>USERADD_PARAM</glossterm>
-            <info>
-               USERADD_PARAM[doc] = "When a recipe inherits the useradd class, this variable specifies for a package what parameters should pass to the useradd command if you add a user to the system when the package is installed."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When inheriting the
-                    <link linkend='ref-classes-useradd'><filename>useradd</filename></link>
-                    class, this variable
-                    specifies for a package what parameters should pass
-                    to the <filename>useradd</filename> command
-                    if you add a user to the system when the package
-                    is installed.
-                </para>
-
-                <para>
-                    Here is an example from the <filename>dbus</filename>
-                    recipe:
-                    <literallayout class='monospaced'>
-     USERADD_PARAM_${PN} = "--system --home ${localstatedir}/lib/dbus \
-                            --no-create-home --shell /bin/false \
-                            --user-group messagebus"
-                    </literallayout>
-                    For information on the standard Linux shell command
-                    <filename>useradd</filename>, see
-                    <ulink url='http://linux.die.net/man/8/useradd'></ulink>.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-USERADD_UID_TABLES'><glossterm>USERADD_UID_TABLES</glossterm>
-            <info>
-               USERADD_UID_TABLES[doc] = "Specifies a password file to use for obtaining static user identification (uid) values when the OpenEmbedded build system adds a user to the system during package installation."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies a password file to use for obtaining static
-                    user identification (<filename>uid</filename>) values
-                    when the OpenEmbedded build system adds a user to the
-                    system during package installation.
-                </para>
-
-                <para>
-                    When applying static user identification
-                    (<filename>uid</filename>) values, the OpenEmbedded build
-                    system looks in
-                    <link linkend='var-BBPATH'><filename>BBPATH</filename></link>
-                    for a <filename>files/passwd</filename> file and then applies
-                    those <filename>uid</filename> values.
-                    Set the variable as follows in your
-                    <filename>local.conf</filename> file:
-                    <literallayout class='monospaced'>
-     USERADD_UID_TABLES = "files/passwd"
-                    </literallayout>
-                </para>
-
-                <note>
-                    Setting the
-                    <link linkend='var-USERADDEXTENSION'><filename>USERADDEXTENSION</filename></link>
-                    variable to "useradd-staticids" causes the build system
-                    to use static <filename>uid</filename> values.
-                </note>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-USERADDEXTENSION'><glossterm>USERADDEXTENSION</glossterm>
-            <info>
-               USERADDEXTENSION[doc] = "When set to 'useradd-staticids', causes the OpenEmbedded build system to base all user and group additions on a static passwd and group files found in BBPATH."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When set to "useradd-staticids", causes the
-                    OpenEmbedded build system to base all user and group
-                    additions on a static
-                    <filename>passwd</filename> and
-                    <filename>group</filename> files found in
-                    <link linkend='var-BBPATH'><filename>BBPATH</filename></link>.
-                </para>
-
-                <para>
-                    To use static user identification (<filename>uid</filename>)
-                    and group identification (<filename>gid</filename>)
-                    values, set the variable
-                    as follows in your <filename>local.conf</filename> file:
-                    <literallayout class='monospaced'>
-     USERADDEXTENSION = "useradd-staticids"
-                    </literallayout>
-                    <note>
-                        Setting this variable to use static
-                        <filename>uid</filename> and <filename>gid</filename>
-                        values causes the OpenEmbedded build system to employ
-                        the
-                        <link linkend='ref-classes-useradd'><filename>useradd-staticids</filename></link>
-                        class.
-                    </note>
-                </para>
-
-                <para>
-                    If you use static <filename>uid</filename> and
-                    <filename>gid</filename> information, you must also
-                    specify the <filename>files/passwd</filename> and
-                    <filename>files/group</filename> files by setting the
-                    <link linkend='var-USERADD_UID_TABLES'><filename>USERADD_UID_TABLES</filename></link>
-                    and
-                    <link linkend='var-USERADD_GID_TABLES'><filename>USERADD_GID_TABLES</filename></link>
-                    variables.
-                    Additionally, you should also set the
-                    <link linkend='var-USERADD_ERROR_DYNAMIC'><filename>USERADD_ERROR_DYNAMIC</filename></link>
-                    variable.
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-v'><title>V</title>
-
-        <glossentry id='var-VOLATILE_LOG_DIR'><glossterm>VOLATILE_LOG_DIR</glossterm>
-            <info>
-               VOLATILE_LOG_DIR[doc] = "Specifies the persistence of the target's /var/log directory, which is used to house postinstall target log files."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the persistence of the target's
-                    <filename>/var/log</filename> directory, which is used to
-                    house postinstall target log files.
-                </para>
-
-                <para>
-                    By default, <filename>VOLATILE_LOG_DIR</filename> is set
-                    to "yes", which means the file is not persistent.
-                    You can override this setting by setting the
-                    variable to "no" to make the log directory persistent.
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-w'><title>W</title>
-
-        <glossentry id='var-WARN_QA'><glossterm>WARN_QA</glossterm>
-            <info>
-               WARN_QA[doc] = "Specifies the quality assurance checks whose failures are reported as warnings by the OpenEmbedded build system."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the quality assurance checks whose failures are
-                    reported as warnings by the OpenEmbedded build system.
-                    You set this variable in your distribution configuration
-                    file.
-                    For a list of the checks you can control with this variable,
-                    see the
-                    "<link linkend='ref-classes-insane'><filename>insane.bbclass</filename></link>"
-                    section.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-WKS_FILE_DEPENDS'><glossterm>WKS_FILE_DEPENDS</glossterm>
-            <info>
-               WKS_FILE_DEPENDS[doc] = "Lists a recipe's build-time dependencies specific to Wic."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    When placed in the recipe that builds your image, this
-                    variable lists build-time dependencies.
-                    The <filename>WKS_FILE_DEPENDS</filename> variable is only
-                    applicable when Wic images are active (i.e. when
-                    <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>
-                    contains entries related to Wic).
-                    If your recipe does not create Wic images, the variable
-                    has no effect.
-                </para>
-
-                <para>
-                    The <filename>WKS_FILE_DEPENDS</filename> variable is
-                    similar to the
-                    <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link>
-                    variable.
-                    When you use the variable in your recipe that builds the
-                    Wic image, dependencies you list in the
-                    <filename>WIC_FILE_DEPENDS</filename> variable are added to
-                    the <filename>DEPENDS</filename> variable.
-                </para>
-
-                <para>
-                    With the <filename>WKS_FILE_DEPENDS</filename> variable,
-                    you have the possibility to specify a list of additional
-                    dependencies (e.g. native tools, bootloaders, and so forth),
-                    that are required to build Wic images.
-                    Following is an example:
-                    <literallayout class='monospaced'>
-     WKS_FILE_DEPENDS = "<replaceable>some-native-tool</replaceable>"
-                    </literallayout>
-                    In the previous example,
-                    <replaceable>some-native-tool</replaceable> would be
-                    replaced with an actual native tool on which the build
-                    would depend.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-WKS_FILE'><glossterm>WKS_FILE</glossterm>
-            <info>
-               WKS_FILE[doc] = "Specifies the name of the wic kickstart file."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the location of the Wic
-                    kickstart file that is used by the OpenEmbedded build
-                    system to create a partitioned image
-                    (<replaceable>image</replaceable><filename>.wic</filename>).
-                    For information on how to create a partitioned image, see
-                    the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#creating-partitioned-images-using-wic'>Creating Partitioned Images Using Wic</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                    For details on the kickstart file format, see the
-                    "<link linkend='ref-kickstart'>OpenEmbedded Kickstart (<filename>.wks</filename>) Reference</link>"
-                    Chapter.
-                </para>
-            </glossdef>
-        </glossentry>
-
-        <glossentry id='var-WORKDIR'><glossterm>WORKDIR</glossterm>
-            <info>
-               WORKDIR[doc] = "The pathname of the working directory in which the OpenEmbedded build system builds a recipe. This directory is located within the TMPDIR directory structure and changes as different packages are built."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    The pathname of the work directory in which the OpenEmbedded
-                    build system builds a recipe.
-                    This directory is located within the
-                    <link linkend='var-TMPDIR'><filename>TMPDIR</filename></link>
-                    directory structure and is specific to the recipe being
-                    built and the system for which it is being built.
-                </para>
-
-                <para>
-                    The <filename>WORKDIR</filename> directory is defined as
-                    follows:
-                    <literallayout class='monospaced'>
-     ${TMPDIR}/work/${MULTIMACH_TARGET_SYS}/${PN}/${EXTENDPE}${PV}-${PR}
-                    </literallayout>
-                    The actual directory depends on several things:
-                    <itemizedlist>
-                        <listitem><filename>TMPDIR</filename>:
-                            The top-level build output directory</listitem>
-                        <listitem><link linkend='var-MULTIMACH_TARGET_SYS'><filename>MULTIMACH_TARGET_SYS</filename></link>:
-                            The target system identifier</listitem>
-                        <listitem><link linkend='var-PN'><filename>PN</filename></link>:
-                            The recipe name</listitem>
-                        <listitem><link linkend='var-EXTENDPE'><filename>EXTENDPE</filename></link>:
-                            The epoch - (if
-                            <link linkend='var-PE'><filename>PE</filename></link>
-                            is not specified, which is usually the case for most
-                            recipes, then <filename>EXTENDPE</filename> is blank)</listitem>
-                        <listitem><link linkend='var-PV'><filename>PV</filename></link>:
-                            The recipe version</listitem>
-                        <listitem><link linkend='var-PR'><filename>PR</filename></link>:
-                            The recipe revision</listitem>
-                    </itemizedlist>
-                </para>
-
-                <para>
-                    As an example, assume a Source Directory top-level folder
-                    name <filename>poky</filename>, a default Build Directory at
-                    <filename>poky/build</filename>, and a
-                    <filename>qemux86-poky-linux</filename> machine target
-                    system.
-                    Furthermore, suppose your recipe is named
-                    <filename>foo_1.3.0-r0.bb</filename>.
-                    In this case, the work directory the build system uses to
-                    build the package would be as follows:
-                    <literallayout class='monospaced'>
-     poky/build/tmp/work/qemux86-poky-linux/foo/1.3.0-r0
-                    </literallayout>
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-    <glossdiv id='var-glossary-x'><title>X</title>
-
-        <glossentry id='var-XSERVER'><glossterm>XSERVER</glossterm>
-            <info>
-               XSERVER[doc] = "Specifies the packages that should be installed to provide an X server and drivers for the current machine."
-            </info>
-            <glossdef>
-                <para role="glossdeffirst">
-                    Specifies the packages that should be installed to
-                    provide an X server and drivers for the current machine,
-                    assuming your image directly includes
-                    <filename>packagegroup-core-x11-xserver</filename> or,
-                    perhaps indirectly, includes "x11-base" in
-                    <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>.
-                </para>
-
-                <para>
-                    The default value of <filename>XSERVER</filename>, if not
-                    specified in the machine configuration, is
-                    "xserver-xorg xf86-video-fbdev xf86-input-evdev".
-                </para>
-            </glossdef>
-        </glossentry>
-
-    </glossdiv>
-
-<!--            <glossdiv id='var-glossary-y'><title>Y</title>-->
-<!--            </glossdiv>-->
-
-<!--            <glossdiv id='var-glossary-z'><title>Z</title>-->
-<!--            </glossdiv>-->
-
-</glossary>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/ref-manual/ref-varlocality.rst b/poky/documentation/ref-manual/ref-varlocality.rst
index a95504b..5f7dba8 100644
--- a/poky/documentation/ref-manual/ref-varlocality.rst
+++ b/poky/documentation/ref-manual/ref-varlocality.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ****************
 Variable Context
diff --git a/poky/documentation/ref-manual/ref-varlocality.xml b/poky/documentation/ref-manual/ref-varlocality.xml
deleted file mode 100644
index a2436fb..0000000
--- a/poky/documentation/ref-manual/ref-varlocality.xml
+++ /dev/null
@@ -1,199 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='ref-varlocality'>
-    <title>Variable Context</title>
-
-    <para>
-        While you can use most variables in almost any context such as
-        <filename>.conf</filename>, <filename>.bbclass</filename>,
-        <filename>.inc</filename>, and <filename>.bb</filename> files,
-        some variables are often associated with a particular locality or context.
-        This chapter describes some common associations.
-    </para>
-
-    <section id='ref-varlocality-configuration'>
-        <title>Configuration</title>
-
-        <para>
-            The following subsections provide lists of variables whose context is
-            configuration: distribution, machine, and local.
-        </para>
-
-        <section id='ref-varlocality-config-distro'>
-            <title>Distribution (Distro)</title>
-
-            <para>
-               This section lists variables whose configuration context is the
-               distribution, or distro.
-               <itemizedlist>
-                   <listitem><para><filename><link linkend='var-DISTRO'>DISTRO</link></filename></para></listitem>
-                   <listitem><para><filename><link linkend='var-DISTRO_NAME'>DISTRO_NAME</link></filename>
-                       </para></listitem>
-                   <listitem><para><filename><link linkend='var-DISTRO_VERSION'>DISTRO_VERSION</link>
-                       </filename></para></listitem>
-                   <listitem><para><filename><link linkend='var-MAINTAINER'>MAINTAINER</link></filename>
-                       </para></listitem>
-                   <listitem><para><filename><link linkend='var-PACKAGE_CLASSES'>PACKAGE_CLASSES</link>
-                       </filename></para></listitem>
-                   <listitem><para><filename><link linkend='var-TARGET_OS'>TARGET_OS</link></filename>
-                       </para></listitem>
-                   <listitem><para><filename><link linkend='var-TARGET_FPU'>TARGET_FPU</link></filename>
-                       </para></listitem>
-                   <listitem><para><filename><link linkend='var-TCMODE'>TCMODE</link></filename>
-                       </para></listitem>
-                   <listitem><para><filename><link linkend='var-TCLIBC'>TCLIBC</link></filename>
-                       </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='ref-varlocality-config-machine'>
-            <title>Machine</title>
-
-            <para>
-                This section lists variables whose configuration context is the
-                machine.
-                <itemizedlist>
-                    <listitem><para><filename><link linkend='var-TARGET_ARCH'>TARGET_ARCH</link></filename>
-                        </para></listitem>
-                    <listitem><para><filename><link linkend='var-SERIAL_CONSOLES'>SERIAL_CONSOLES</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-PACKAGE_EXTRA_ARCHS'>PACKAGE_EXTRA_ARCHS</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-IMAGE_FSTYPES'>IMAGE_FSTYPES</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-MACHINE_FEATURES'>MACHINE_FEATURES</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-MACHINE_EXTRA_RDEPENDS'>MACHINE_EXTRA_RDEPENDS
-                        </link></filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-MACHINE_EXTRA_RRECOMMENDS'>MACHINE_EXTRA_RRECOMMENDS
-                        </link></filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-MACHINE_ESSENTIAL_EXTRA_RDEPENDS'>MACHINE_ESSENTIAL_EXTRA_RDEPENDS
-                        </link></filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS'>
-                        MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS</link></filename></para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='ref-varlocality-config-local'>
-            <title>Local</title>
-
-            <para>
-                This section lists variables whose configuration context is the
-                local configuration through the <filename>local.conf</filename>
-                file.
-                <itemizedlist>
-                    <listitem><para><filename><link linkend='var-DISTRO'>DISTRO</link></filename>
-                        </para></listitem>
-                    <listitem><para><filename><link linkend='var-MACHINE'>MACHINE</link></filename>
-                        </para></listitem>
-                    <listitem><para><filename><link linkend='var-DL_DIR'>DL_DIR</link></filename>
-                        </para></listitem>
-                    <listitem><para><filename><link linkend='var-BBFILES'>BBFILES</link></filename>
-                        </para></listitem>
-                    <listitem><para><filename><link linkend='var-EXTRA_IMAGE_FEATURES'>EXTRA_IMAGE_FEATURES
-                        </link></filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-PACKAGE_CLASSES'>PACKAGE_CLASSES</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-BB_NUMBER_THREADS'>BB_NUMBER_THREADS</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-BBINCLUDELOGS'>BBINCLUDELOGS</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-ENABLE_BINARY_LOCALE_GENERATION'>
-                        ENABLE_BINARY_LOCALE_GENERATION</link></filename></para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-    </section>
-
-    <section id='ref-varlocality-recipes'>
-        <title>Recipes</title>
-
-        <para>
-            The following subsections provide lists of variables whose context is
-            recipes: required, dependencies, path, and extra build information.
-        </para>
-
-        <section id='ref-varlocality-recipe-required'>
-            <title>Required</title>
-
-            <para>
-                This section lists variables that are required for recipes.
-                <itemizedlist>
-                    <listitem><para><filename><link linkend='var-LICENSE'>LICENSE</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-LIC_FILES_CHKSUM'>LIC_FILES_CHKSUM</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-SRC_URI'>SRC_URI</link></filename> - used
-                        in recipes that fetch local or remote files.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='ref-varlocality-recipe-dependencies'>
-            <title>Dependencies</title>
-
-            <para>
-                This section lists variables that define recipe dependencies.
-                <itemizedlist>
-                    <listitem><para><filename><link linkend='var-DEPENDS'>DEPENDS</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-RDEPENDS'>RDEPENDS</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-RRECOMMENDS'>RRECOMMENDS</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-RCONFLICTS'>RCONFLICTS</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-RREPLACES'>RREPLACES</link>
-                        </filename></para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='ref-varlocality-recipe-paths'>
-            <title>Paths</title>
-
-            <para>
-                This section lists variables that define recipe paths.
-                <itemizedlist>
-                    <listitem><para><filename><link linkend='var-WORKDIR'>WORKDIR</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-S'>S</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-FILES'>FILES</link>
-                        </filename></para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='ref-varlocality-recipe-build'>
-            <title>Extra Build Information</title>
-
-            <para>
-                This section lists variables that define extra build information for recipes.
-                <itemizedlist>
-                    <listitem><para><filename><link linkend='var-DEFAULT_PREFERENCE'>DEFAULT_PREFERENCE
-                        </link></filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-EXTRA_OECMAKE'>EXTRA_OECMAKE</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-EXTRA_OECONF'>EXTRA_OECONF</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-EXTRA_OEMAKE'>EXTRA_OEMAKE</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-PACKAGECONFIG_CONFARGS'>PACKAGECONFIG_CONFARGS</link>
-                        </filename></para></listitem>
-                    <listitem><para><filename><link linkend='var-PACKAGES'>PACKAGES</link></filename>
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-    </section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4 spell spelllang=en_gb
--->
diff --git a/poky/documentation/ref-manual/resources.rst b/poky/documentation/ref-manual/resources.rst
index 2b82b79..f90182b 100644
--- a/poky/documentation/ref-manual/resources.rst
+++ b/poky/documentation/ref-manual/resources.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ****************************************
 Contributions and Additional Information
diff --git a/poky/documentation/ref-manual/resources.xml b/poky/documentation/ref-manual/resources.xml
deleted file mode 100644
index 4899b2e..0000000
--- a/poky/documentation/ref-manual/resources.xml
+++ /dev/null
@@ -1,298 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='resources'>
-<title>Contributions and Additional Information</title>
-
-<section id='resources-intro'>
-    <title>Introduction</title>
-    <para>
-        The Yocto Project team is happy for people to experiment with the
-        Yocto Project.
-        A number of places exist to find help if you run into difficulties
-        or find bugs.
-        This presents information about contributing and participating in
-        the Yocto Project.
-    </para>
-</section>
-
-<section id='resources-contributions'>
-    <title>Contributions</title>
-
-    <para>
-        The Yocto Project gladly accepts contributions.
-        You can submit changes to the project either by creating and sending
-        pull requests,
-        or by submitting patches through email.
-        For information on how to do both as well as information on how
-        to identify the maintainer for each area of code, see the
-        "<ulink url='&YOCTO_DOCS_DEV_URL;#how-to-submit-a-change'>Submitting a Change to the Yocto Project</ulink>"
-        section in the Yocto Project Development Tasks Manual.
-    </para>
-</section>
-
-<section id='resources-bugtracker'>
-    <title>Yocto Project Bugzilla</title>
-
-    <para>
-        The Yocto Project uses its own implementation of
-        <ulink url='&YOCTO_BUGZILLA_URL;'>Bugzilla</ulink> to
-        track defects (bugs).
-        Implementations of Bugzilla work well for group development because
-        they track bugs and code changes, can be used to communicate changes
-        and problems with developers, can be used to submit and review patches,
-        and can be used to manage quality assurance.
-    </para>
-
-    <para>
-        Sometimes it is helpful to submit, investigate, or track a bug against
-        the Yocto Project itself (e.g. when discovering an issue with some
-        component of the build system that acts contrary to the documentation
-        or your expectations).
-    </para>
-
-    <para>
-        A general procedure and guidelines exist for when you use Bugzilla to
-        submit a bug.
-        For information on how to use Bugzilla to submit a bug against the
-        Yocto Project, see the following:
-        <itemizedlist>
-            <listitem><para>
-                The
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#submitting-a-defect-against-the-yocto-project'>Submitting a Defect Against the Yocto Project</ulink>"
-                section in the Yocto Project Development Tasks Manual.
-                </para></listitem>
-            <listitem><para>
-                The Yocto Project
-                <ulink url='&YOCTO_WIKI_URL;/wiki/Bugzilla_Configuration_and_Bug_Tracking'>Bugzilla wiki page</ulink>
-                </para></listitem>
-        </itemizedlist>
-        For information on Bugzilla in general, see
-        <ulink url='http://www.bugzilla.org/about/'></ulink>.
-    </para>
-</section>
-
-<section id='resources-mailinglist'>
-    <title>Mailing lists</title>
-
-    <para>
-        A number of mailing lists maintained by the Yocto Project exist
-        as well as related OpenEmbedded mailing lists for discussion,
-        patch submission and announcements.
-        To subscribe to one of the following mailing lists, click on the
-        appropriate URL in the following list and follow the instructions:
-        <itemizedlist>
-            <listitem><para><ulink url='&YOCTO_LISTS_URL;/listinfo/yocto'></ulink> -
-                General Yocto Project discussion mailing list. </para></listitem>
-            <listitem><para><ulink url='&OE_LISTS_URL;/listinfo/openembedded-core'></ulink> -
-                Discussion mailing list about OpenEmbedded-Core (the core metadata).</para></listitem>
-            <listitem><para><ulink url='&OE_LISTS_URL;/listinfo/openembedded-devel'></ulink> -
-                Discussion mailing list about OpenEmbedded.</para></listitem>
-            <listitem><para><ulink url='&OE_LISTS_URL;/listinfo/bitbake-devel'></ulink> -
-                Discussion mailing list about the
-                <link linkend='bitbake-term'>BitBake</link>
-                build tool.</para></listitem>
-            <listitem><para><ulink url='&YOCTO_LISTS_URL;/listinfo/poky'></ulink> -
-                Discussion mailing list about
-                <link linkend='poky'>Poky</link>.
-                </para></listitem>
-            <listitem><para><ulink url='&YOCTO_LISTS_URL;/listinfo/yocto-announce'></ulink> -
-                Mailing list to receive official Yocto Project release and milestone
-                announcements.</para></listitem>
-        </itemizedlist>
-    </para>
-    For more Yocto Project-related mailing lists, see the
-    <ulink url='&YOCTO_HOME_URL;'>Yocto Project Website</ulink>.
-</section>
-
-<section id='resources-irc'>
-    <title>Internet Relay Chat (IRC)</title>
-
-    <para>
-        Two IRC channels on freenode are available for the Yocto Project and Poky discussions:
-        <itemizedlist>
-            <listitem><para><filename>#yocto</filename></para></listitem>
-            <listitem><para><filename>#poky</filename></para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='resources-links-and-related-documentation'>
-    <title>Links and Related Documentation</title>
-
-    <para>
-        Here is a list of resources you might find helpful:
-        <itemizedlist>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_HOME_URL;'>The Yocto Project website</ulink>:
-                </emphasis> The home site for the Yocto Project.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_WIKI_URL;/wiki/Main_Page'>The Yocto Project Main Wiki Page</ulink>:
-                </emphasis>
-                The main wiki page for the Yocto Project.
-                This page contains information about project planning,
-                release engineering, QA &amp; automation, a reference
-                site map, and other resources related to the Yocto Project.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&OE_HOME_URL;'>OpenEmbedded</ulink>:
-                </emphasis>
-                The build system used by the Yocto Project.
-                This project is the upstream, generic, embedded distribution
-                from which the Yocto Project derives its build system (Poky)
-                and to which it contributes.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='http://www.openembedded.org/wiki/BitBake'>
-                BitBake</ulink>:
-                </emphasis> The tool used to process metadata.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_DOCS_BB_URL;'>BitBake User Manual</ulink>:
-                </emphasis>
-                A comprehensive guide to the BitBake tool.
-                If you want information on BitBake, see this manual.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_DOCS_BRIEF_URL;'>Yocto Project Quick Build</ulink>:
-                </emphasis>
-                This short document lets you experience building an image using
-                the Yocto Project without having to understand any concepts or
-                details.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_DOCS_OM_URL;'>Yocto Project Overview and Concepts Manual</ulink>:
-                </emphasis>
-                This manual provides overview and conceptual information
-                about the Yocto Project.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_DOCS_DEV_URL;'>Yocto Project Development Tasks Manual</ulink>:
-                </emphasis>
-                This manual is a "how-to" guide that presents procedures
-                useful to both application and system developers who use the
-                Yocto Project.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_DOCS_SDK_URL;'>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</ulink>
-                manual:</emphasis>
-                This guide provides information that lets you get going
-                with the standard or extensible SDK.
-                An SDK, with its cross-development toolchains, allows you
-                to develop projects inside or outside of the Yocto Project
-                environment.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_DOCS_BSP_URL;'>Yocto Project Board Support Package (BSP) Developer's Guide</ulink>:
-                </emphasis>
-                This guide defines the structure for BSP components.
-                Having a commonly understood structure encourages
-                standardization.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_DOCS_KERNEL_DEV_URL;'>Yocto Project Linux Kernel Development Manual</ulink>:
-                </emphasis>
-                This manual describes how to work with Linux Yocto kernels as
-                well as provides a bit of conceptual information on the
-                construction of the Yocto Linux kernel tree.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_DOCS_REF_URL;'>Yocto Project Reference Manual</ulink>:
-                </emphasis>
-                This manual provides reference material such as variable,
-                task, and class descriptions.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_DOCS_MM_URL;'>Yocto Project Mega-Manual</ulink>:
-                </emphasis>
-                This manual is simply a single HTML file comprised of the
-                bulk of the Yocto Project manuals.
-                The Mega-Manual primarily exists as a vehicle by which you can
-                easily search for phrases and terms used in the Yocto Project
-                documentation set.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_DOCS_PROF_URL;'>Yocto Project Profiling and Tracing Manual</ulink>:
-                </emphasis>
-                This manual presents a set of common and generally useful
-                tracing and profiling schemes along with their applications
-                (as appropriate) to each tool.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_DOCS_TOAST_URL;'>Toaster User Manual</ulink>:
-                </emphasis>
-                This manual introduces and describes how to set up and use
-                Toaster.
-                Toaster is an Application Programming Interface (API) and
-                web-based interface to the
-                <link linkend='build-system-term'>OpenEmbedded Build System</link>,
-                which uses BitBake, that reports build information.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_WIKI_URL;/wiki/FAQ'>FAQ</ulink>:
-                </emphasis>
-                A list of commonly asked questions and their answers.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Release Notes:</emphasis>
-                Features, updates and known issues for the current
-                release of the Yocto Project.
-                To access the Release Notes, go to the
-                <ulink url='&YOCTO_HOME_URL;/software-overview/downloads/'>Downloads</ulink>
-                page on the Yocto Project website and click on the
-                "RELEASE INFORMATION" link for the appropriate release.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_BUGZILLA_URL;'>Bugzilla</ulink>:
-                </emphasis>
-                The bug tracking application the Yocto Project uses.
-                If you find problems with the Yocto Project, you should report
-                them using this application.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='&YOCTO_WIKI_URL;/wiki/Bugzilla_Configuration_and_Bug_Tracking'>Bugzilla Configuration and Bug Tracking Wiki Page</ulink>:
-                </emphasis>
-                Information on how to get set up and use the Yocto Project
-                implementation of Bugzilla for logging and tracking Yocto
-                Project defects.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Internet Relay Chat (IRC):</emphasis>
-                Two IRC channels on freenode are available
-                for Yocto Project and Poky discussions: <filename>#yocto</filename> and
-                <filename>#poky</filename>, respectively.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>
-                <ulink url='http://wiki.qemu.org/Index.html'>Quick EMUlator (QEMU)</ulink>:
-                </emphasis>
-                An open-source machine emulator and virtualizer.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/releases.rst b/poky/documentation/releases.rst
index 49c33b3..536c3a6 100644
--- a/poky/documentation/releases.rst
+++ b/poky/documentation/releases.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 =========================
  Current Release Manuals
diff --git a/poky/documentation/sdk-manual/history.rst b/poky/documentation/sdk-manual/history.rst
index af027c9..8c10f6d 100644
--- a/poky/documentation/sdk-manual/history.rst
+++ b/poky/documentation/sdk-manual/history.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ***********************
 Manual Revision History
diff --git a/poky/documentation/sdk-manual/sdk-appendix-customizing-standard.rst b/poky/documentation/sdk-manual/sdk-appendix-customizing-standard.rst
index f6f2b66..90b6345 100644
--- a/poky/documentation/sdk-manual/sdk-appendix-customizing-standard.rst
+++ b/poky/documentation/sdk-manual/sdk-appendix-customizing-standard.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ****************************
 Customizing the Standard SDK
diff --git a/poky/documentation/sdk-manual/sdk-appendix-customizing-standard.xml b/poky/documentation/sdk-manual/sdk-appendix-customizing-standard.xml
deleted file mode 100644
index 3a6b4c8..0000000
--- a/poky/documentation/sdk-manual/sdk-appendix-customizing-standard.xml
+++ /dev/null
@@ -1,59 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<appendix id='sdk-appendix-customizing-standard'>
-
-<title>Customizing the Standard SDK</title>
-
-<para>
-    This appendix presents customizations you can apply to the standard SDK.
-</para>
-
-<section id='sdk-adding-individual-packages'>
-    <title>Adding Individual Packages to the Standard SDK</title>
-
-    <para>
-         When you build a standard SDK using the
-         <filename>bitbake -c populate_sdk</filename>, a default set of
-         packages is included in the resulting SDK.
-         The
-         <ulink url='&YOCTO_DOCS_REF_URL;#var-TOOLCHAIN_HOST_TASK'><filename>TOOLCHAIN_HOST_TASK</filename></ulink>
-         and
-         <ulink url='&YOCTO_DOCS_REF_URL;#var-TOOLCHAIN_TARGET_TASK'><filename>TOOLCHAIN_TARGET_TASK</filename></ulink>
-         variables control the set of packages adding to the SDK.
-    </para>
-
-    <para>
-        If you want to add individual packages to the toolchain that runs on
-        the host, simply add those packages to the
-        <filename>TOOLCHAIN_HOST_TASK</filename> variable.
-        Similarly, if you want to add packages to the default set that is
-        part of the toolchain that runs on the target, add the packages to the
-        <filename>TOOLCHAIN_TARGET_TASK</filename> variable.
-    </para>
-</section>
-
-<section id='adding-api-documentation-to-the-standard-sdk'>
-    <title>Adding API Documentation to the Standard SDK</title>
-
-    <para>
-        You can include API documentation as well as any other
-        documentation provided by recipes with the standard SDK by
-        adding "api-documentation" to the
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></ulink>
-        variable:
-        <literallayout class='monospaced'>
-     DISTRO_FEATURES_append = " api-documentation"
-        </literallayout>
-        Setting this variable as shown here causes the OpenEmbedded build
-        system to build the documentation and then include it in the standard
-        SDK.
-    </para>
-</section>
-
-</appendix>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/sdk-manual/sdk-appendix-customizing.rst b/poky/documentation/sdk-manual/sdk-appendix-customizing.rst
index 7743e3c..5a33f63 100644
--- a/poky/documentation/sdk-manual/sdk-appendix-customizing.rst
+++ b/poky/documentation/sdk-manual/sdk-appendix-customizing.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ******************************
 Customizing the Extensible SDK
diff --git a/poky/documentation/sdk-manual/sdk-appendix-customizing.xml b/poky/documentation/sdk-manual/sdk-appendix-customizing.xml
deleted file mode 100644
index 08054f8..0000000
--- a/poky/documentation/sdk-manual/sdk-appendix-customizing.xml
+++ /dev/null
@@ -1,515 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<appendix id='sdk-appendix-customizing'>
-
-<title>Customizing the Extensible SDK</title>
-
-<para>
-    This appendix describes customizations you can apply to the extensible SDK.
-</para>
-
-<section id='sdk-configuring-the-extensible-sdk'>
-    <title>Configuring the Extensible SDK</title>
-
-    <para>
-        The extensible SDK primarily consists of a pre-configured copy of
-        the OpenEmbedded build system from which it was produced.
-        Thus, the SDK's configuration is derived using that build system and
-        the filters shown in the following list.
-        When these filters are present, the OpenEmbedded build system applies
-        them against <filename>local.conf</filename> and
-        <filename>auto.conf</filename>:
-        <itemizedlist>
-            <listitem><para>
-                Variables whose values start with "/" are excluded since the
-                assumption is that those values are paths that are likely to
-                be specific to the
-                <ulink url='&YOCTO_DOCS_REF_URL;#hardware-build-system-term'>build host</ulink>.
-                </para></listitem>
-            <listitem><para>
-                Variables listed in
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_LOCAL_CONF_BLACKLIST'><filename>SDK_LOCAL_CONF_BLACKLIST</filename></ulink>
-                are excluded.
-                These variables are not allowed through from the OpenEmbedded
-                build system configuration into the extensible SDK
-                configuration.
-                Typically, these variables are specific to the machine on
-                which the build system is running and could be problematic
-                as part of the extensible SDK configuration.</para>
-
-                <para>For a list of the variables excluded by default, see the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_LOCAL_CONF_BLACKLIST'><filename>SDK_LOCAL_CONF_BLACKLIST</filename></ulink>
-                in the glossary of the Yocto Project Reference Manual.
-                </para></listitem>
-            <listitem><para>
-                Variables listed in
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_LOCAL_CONF_WHITELIST'><filename>SDK_LOCAL_CONF_WHITELIST</filename></ulink>
-                are included.
-                Including a variable in the value of
-                <filename>SDK_LOCAL_CONF_WHITELIST</filename> overrides either
-                of the previous two filters.
-                The default value is blank.
-                </para></listitem>
-            <listitem><para>
-                Classes inherited globally with
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-INHERIT'><filename>INHERIT</filename></ulink>
-                that are listed in
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_INHERIT_BLACKLIST'><filename>SDK_INHERIT_BLACKLIST</filename></ulink>
-                are disabled.
-                Using <filename>SDK_INHERIT_BLACKLIST</filename> to disable
-                these classes is the typical method to disable classes that
-                are problematic or unnecessary in the SDK context.
-                The default value blacklists the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-buildhistory'><filename>buildhistory</filename></ulink>
-                and
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-icecc'><filename>icecc</filename></ulink>
-                classes.
-                </para></listitem>
-        </itemizedlist>
-        Additionally, the contents of <filename>conf/sdk-extra.conf</filename>,
-        when present, are appended to the end of
-        <filename>conf/local.conf</filename> within the produced SDK, without
-        any filtering.
-        The <filename>sdk-extra.conf</filename> file is particularly useful
-        if you want to set a variable value just for the SDK and not the
-        OpenEmbedded build system used to create the SDK.
-    </para>
-</section>
-
-<section id='adjusting-the-extensible-sdk-to-suit-your-build-hosts-setup'>
-    <title>Adjusting the Extensible SDK to Suit Your Build Host's Setup</title>
-
-    <para>
-        In most cases, the extensible SDK defaults should work with your
-        <ulink url='&YOCTO_DOCS_REF_URL;#hardware-build-system-term'>build host's</ulink>
-        setup.
-        However, some cases exist for which you might consider making
-        adjustments:
-        <itemizedlist>
-            <listitem><para>
-                If your SDK configuration inherits additional classes
-                using the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-INHERIT'><filename>INHERIT</filename></ulink>
-                variable and you do not need or want those classes enabled in
-                the SDK, you can blacklist them by adding them to the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_INHERIT_BLACKLIST'><filename>SDK_INHERIT_BLACKLIST</filename></ulink>
-                variable as described in the fourth bullet of the previous
-                section.
-                <note>
-                    The default value of
-                    <filename>SDK_INHERIT_BLACKLIST</filename> is set using
-                    the "?=" operator.
-                    Consequently, you will need to either define the entire
-                    list by using the "=" operator, or you will need to append
-                    a value using either "_append" or the "+=" operator.
-                    You can learn more about these operators in the
-                    "<ulink url='&YOCTO_DOCS_BB_URL;#basic-syntax'>Basic Syntax</ulink>"
-                    section of the BitBake User Manual.
-                </note>.
-                </para></listitem>
-            <listitem><para>
-                If you have classes or recipes that add additional tasks to
-                the standard build flow (i.e. the tasks execute as the recipe
-                builds as opposed to being called explicitly), then you need
-                to do one of the following:
-                <itemizedlist>
-                    <listitem><para>
-                        After ensuring the tasks are
-                        <ulink url='&YOCTO_DOCS_OM_URL;#shared-state-cache'>shared state</ulink>
-                        tasks (i.e. the output of the task is saved to and
-                        can be restored from the shared state cache) or
-                        ensuring the tasks are able to be produced quickly from
-                        a task that is a shared state task, add the task name
-                        to the value of
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_RECRDEP_TASKS'><filename>SDK_RECRDEP_TASKS</filename></ulink>.
-                        </para></listitem>
-                    <listitem><para>
-                        Disable the tasks if they are added by a class and
-                        you do not need the functionality the class provides
-                        in the extensible SDK.
-                        To disable the tasks, add the class to the
-                        <filename>SDK_INHERIT_BLACKLIST</filename> variable
-                        as described in the previous section.
-                        </para></listitem>
-                </itemizedlist>
-                </para></listitem>
-            <listitem><para>
-                Generally, you want to have a shared state mirror set up so
-                users of the SDK can add additional items to the SDK after
-                installation without needing to build the items from source.
-                See the
-                "<link linkend='sdk-providing-additional-installable-extensible-sdk-content'>Providing Additional Installable Extensible SDK Content</link>"
-                section for information.
-                </para></listitem>
-            <listitem><para>
-                If you want users of the SDK to be able to easily update the
-                SDK, you need to set the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_UPDATE_URL'><filename>SDK_UPDATE_URL</filename></ulink>
-                variable.
-                For more information, see the
-                "<link linkend='sdk-providing-updates-to-the-extensible-sdk-after-installation'>Providing Updates to the Extensible SDK After Installation</link>"
-                section.
-                </para></listitem>
-            <listitem><para>
-                If you have adjusted the list of files and directories that
-                appear in
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-COREBASE'><filename>COREBASE</filename></ulink>
-                (other than layers that are enabled through
-                <filename>bblayers.conf</filename>), then you must list these
-                files in
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-COREBASE_FILES'><filename>COREBASE_FILES</filename></ulink>
-                so that the files are copied into the SDK.
-                </para></listitem>
-            <listitem><para>
-                If your OpenEmbedded build system setup uses a different
-                environment setup script other than
-                <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>,
-                then you must set
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-OE_INIT_ENV_SCRIPT'><filename>OE_INIT_ENV_SCRIPT</filename></ulink>
-                to point to the environment setup script you use.
-                <note>
-                    You must also reflect this change in the value used for the
-                    <filename>COREBASE_FILES</filename> variable as previously
-                    described.
-                </note>
-                </para></listitem>
-        </itemizedlist>
-    </para>
-</section>
-
-<section id='sdk-changing-the-sdk-installer-title'>
-    <title>Changing the Extensible SDK Installer Title</title>
-
-    <para>
-        You can change the displayed title for the SDK installer by setting
-        the
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_TITLE'><filename>SDK_TITLE</filename></ulink>
-        variable and then rebuilding the the SDK installer.
-        For information on how to build an SDK installer, see the
-        "<link linkend='sdk-building-an-sdk-installer'>Building an SDK Installer</link>"
-        section.
-    </para>
-
-    <para>
-        By default, this title is derived from
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO_NAME'><filename>DISTRO_NAME</filename></ulink>
-        when it is set.
-        If the <filename>DISTRO_NAME</filename> variable is not set, the title
-        is derived from the
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO'><filename>DISTRO</filename></ulink>
-        variable.
-    </para>
-
-    <para>
-        The
-        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-populate-sdk-*'><filename>populate_sdk_base</filename></ulink>
-        class defines the default value of the <filename>SDK_TITLE</filename>
-        variable as follows:
-        <literallayout class='monospaced'>
-     SDK_TITLE ??= "${@d.getVar('DISTRO_NAME') or d.getVar('DISTRO')} SDK"
-        </literallayout>
-    </para>
-
-    <para>
-        While several ways exist to change this variable, an efficient method
-        is to set the variable in your distribution's configuration file.
-        Doing so creates an SDK installer title that applies across your
-        distribution.
-        As an example, assume you have your own layer for your distribution
-        named "meta-mydistro" and you are using the same type of file
-        hierarchy as does the default "poky" distribution.
-        If so, you could update the <filename>SDK_TITLE</filename> variable
-        in the
-        <filename>~/meta-mydistro/conf/distro/mydistro.conf</filename> file
-        using the following form:
-        <literallayout class='monospaced'>
-     SDK_TITLE = "<replaceable>your_title</replaceable>"
-        </literallayout>
-    </para>
-</section>
-
-<section id='sdk-providing-updates-to-the-extensible-sdk-after-installation'>
-    <title>Providing Updates to the Extensible SDK After Installation</title>
-
-    <para>
-        When you make changes to your configuration or to the metadata and
-        if you want those changes to be reflected in installed SDKs, you need
-        to perform additional steps.
-        These steps make it possible for anyone using the installed SDKs to
-        update the installed SDKs by using the
-        <filename>devtool sdk-update</filename> command:
-        <orderedlist>
-            <listitem><para>
-                Create a directory that can be shared over HTTP or HTTPS.
-                You can do this by setting up a web server such as an
-                <ulink url='https://en.wikipedia.org/wiki/Apache_HTTP_Server'>Apache HTTP Server</ulink>
-                or
-                <ulink url='https://en.wikipedia.org/wiki/Nginx'>Nginx</ulink>
-                server in the cloud to host the directory.
-                This directory must contain the published SDK.
-                </para></listitem>
-            <listitem><para>
-                Set the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_UPDATE_URL'><filename>SDK_UPDATE_URL</filename></ulink>
-                variable to point to the corresponding HTTP or HTTPS URL.
-                Setting this variable causes any SDK built to default to that
-                URL and thus, the user does not have to pass the URL to the
-                <filename>devtool sdk-update</filename> command as described
-                in the
-                "<link linkend='sdk-applying-updates-to-an-installed-extensible-sdk'>Applying Updates to an Installed Extensible SDK</link>"
-                section.
-                </para></listitem>
-            <listitem><para>
-                Build the extensible SDK normally (i.e., use the
-                <filename>bitbake -c populate_sdk_ext</filename> <replaceable>imagename</replaceable>
-                command).
-                </para></listitem>
-            <listitem><para>
-                Publish the SDK using the following command:
-                <literallayout class='monospaced'>
-     $ oe-publish-sdk <replaceable>some_path</replaceable>/sdk-installer.sh <replaceable>path_to_shared_http_directory</replaceable>
-                </literallayout>
-                You must repeat this step each time you rebuild the SDK
-                with changes that you want to make available through the
-                update mechanism.
-                </para></listitem>
-        </orderedlist>
-    </para>
-
-    <para>
-        Completing the above steps allows users of the existing installed
-        SDKs to simply run <filename>devtool sdk-update</filename> to
-        retrieve and apply the latest updates.
-        See the
-        "<link linkend='sdk-applying-updates-to-an-installed-extensible-sdk'>Applying Updates to an Installed Extensible SDK</link>"
-        section for further information.
-    </para>
-</section>
-
-<section id='sdk-changing-the-default-sdk-installation-directory'>
-    <title>Changing the Default SDK Installation Directory</title>
-
-    <para>
-        When you build the installer for the Extensible SDK, the default
-        installation directory for the SDK is based on the
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO'><filename>DISTRO</filename></ulink>
-        and
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDKEXTPATH'><filename>SDKEXTPATH</filename></ulink>
-        variables from within the
-        <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-populate-sdk-*'><filename>populate_sdk_base</filename></ulink>
-        class as follows:
-        <literallayout class='monospaced'>
-     SDKEXTPATH ??= "~/${@d.getVar('DISTRO')}_sdk"
-        </literallayout>
-        You can change this default installation directory by specifically
-        setting the <filename>SDKEXTPATH</filename> variable.
-    </para>
-
-    <para>
-        While a number of ways exist through which you can set this variable,
-        the method that makes the most sense is to set the variable in your
-        distribution's configuration file.
-        Doing so creates an SDK installer default directory that applies
-        across your distribution.
-        As an example, assume you have your own layer for your distribution
-        named "meta-mydistro" and you are using the same type of file
-        hierarchy as does the default "poky" distribution.
-        If so, you could update the <filename>SDKEXTPATH</filename> variable
-        in the
-        <filename>~/meta-mydistro/conf/distro/mydistro.conf</filename> file
-        using the following form:
-        <literallayout class='monospaced'>
-     SDKEXTPATH = "<replaceable>some_path_for_your_installed_sdk</replaceable>"
-        </literallayout>
-    </para>
-
-    <para>
-        After building your installer, running it prompts the user for
-        acceptance of the
-        <replaceable>some_path_for_your_installed_sdk</replaceable> directory
-        as the default location to install the Extensible SDK.
-    </para>
-</section>
-
-<section id='sdk-providing-additional-installable-extensible-sdk-content'>
-    <title>Providing Additional Installable Extensible SDK Content</title>
-
-    <para>
-        If you want the users of an extensible SDK you build to be
-        able to add items to the SDK without requiring the users to build
-        the items from source, you need to do a number of things:
-        <orderedlist>
-            <listitem><para>
-                Ensure the additional items you want the user to be able to
-                install are already built:
-                <itemizedlist>
-                    <listitem><para>
-                        Build the items explicitly.
-                        You could use one or more "meta" recipes that depend
-                        on lists of other recipes.
-                        </para></listitem>
-                    <listitem><para>
-                        Build the "world" target and set
-                        <filename>EXCLUDE_FROM_WORLD_pn-</filename><replaceable>recipename</replaceable>
-                        for the recipes you do not want built.
-                        See the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-EXCLUDE_FROM_WORLD'><filename>EXCLUDE_FROM_WORLD</filename></ulink>
-                        variable for additional information.
-                        </para></listitem>
-                </itemizedlist>
-                </para></listitem>
-            <listitem><para>
-                Expose the <filename>sstate-cache</filename> directory
-                produced by the build.
-                Typically, you expose this directory by making it available
-                through an
-                <ulink url='https://en.wikipedia.org/wiki/Apache_HTTP_Server'>Apache HTTP Server</ulink>
-                or
-                <ulink url='https://en.wikipedia.org/wiki/Nginx'>Nginx</ulink>
-                server.
-                </para></listitem>
-            <listitem><para>
-                Set the appropriate configuration so that the produced SDK
-                knows how to find the configuration.
-                The variable you need to set is
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SSTATE_MIRRORS'><filename>SSTATE_MIRRORS</filename></ulink>:
-                <literallayout class='monospaced'>
-     SSTATE_MIRRORS = "file://.*  http://<replaceable>example</replaceable>.com/<replaceable>some_path</replaceable>/sstate-cache/PATH"
-                </literallayout>
-                You can set the <filename>SSTATE_MIRRORS</filename> variable
-                in two different places:
-                <itemizedlist>
-                    <listitem><para>
-                        If the mirror value you are setting is appropriate to
-                        be set for both the OpenEmbedded build system that is
-                        actually building the SDK and the SDK itself (i.e. the
-                        mirror is accessible in both places or it will fail
-                        quickly on the OpenEmbedded build system side, and its
-                        contents will not interfere with the build), then you
-                        can set the variable in your
-                        <filename>local.conf</filename> or custom distro
-                        configuration file.
-                        You can then "whitelist" the variable through
-                        to the SDK by adding the following:
-                        <literallayout class='monospaced'>
-     SDK_LOCAL_CONF_WHITELIST = "SSTATE_MIRRORS"
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        Alternatively, if you just want to set the
-                        <filename>SSTATE_MIRRORS</filename> variable's value
-                        for the SDK alone, create a
-                        <filename>conf/sdk-extra.conf</filename> file either in
-                        your
-                        <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-                        or within any layer and put your
-                        <filename>SSTATE_MIRRORS</filename> setting within
-                        that file.
-                        <note>
-                            This second option is the safest option should
-                            you have any doubts as to which method to use when
-                            setting <filename>SSTATE_MIRRORS</filename>.
-                        </note>
-                        </para></listitem>
-                </itemizedlist>
-                </para></listitem>
-        </orderedlist>
-    </para>
-</section>
-
-<section id='sdk-minimizing-the-size-of-the-extensible-sdk-installer-download'>
-    <title>Minimizing the Size of the Extensible SDK Installer Download</title>
-
-    <para>
-        By default, the extensible SDK bundles the shared state artifacts for
-        everything needed to reconstruct the image for which the SDK was built.
-        This bundling can lead to an SDK installer file that is a Gigabyte or
-        more in size.
-        If the size of this file causes a problem, you can build an SDK that
-        has just enough in it to install and provide access to the
-        <filename>devtool command</filename> by setting the following in your
-        configuration:
-        <literallayout class='monospaced'>
-     SDK_EXT_TYPE = "minimal"
-        </literallayout>
-        Setting
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_EXT_TYPE'><filename>SDK_EXT_TYPE</filename></ulink>
-        to "minimal" produces an SDK installer that is around 35 Mbytes in
-        size, which downloads and installs quickly.
-        You need to realize, though, that the minimal installer does not
-        install any libraries or tools out of the box.
-        These libraries and tools must be installed either "on the fly" or
-        through actions you perform using <filename>devtool</filename> or
-        explicitly with the <filename>devtool sdk-install</filename> command.
-    </para>
-
-    <para>
-        In most cases, when building a minimal SDK you need to also enable
-        bringing in the information on a wider range of packages produced by
-        the system.
-        Requiring this wider range of information is particularly true
-        so that <filename>devtool add</filename> is able to effectively map
-        dependencies it discovers in a source tree to the appropriate recipes.
-        Additionally, the information enables the
-        <filename>devtool search</filename> command to return useful results.
-    </para>
-
-    <para>
-        To facilitate this wider range of information, you would need to
-        set the following:
-        <literallayout class='monospaced'>
-     SDK_INCLUDE_PKGDATA = "1"
-        </literallayout>
-        See the
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_INCLUDE_PKGDATA'><filename>SDK_INCLUDE_PKGDATA</filename></ulink>
-        variable for additional information.
-    </para>
-
-    <para>
-        Setting the <filename>SDK_INCLUDE_PKGDATA</filename> variable as
-        shown causes the "world" target to be built so that information
-        for all of the recipes included within it are available.
-        Having these recipes available increases build time significantly and
-        increases the size of the SDK installer by 30-80 Mbytes depending on
-        how many recipes are included in your configuration.
-    </para>
-
-    <para>
-        You can use
-        <filename>EXCLUDE_FROM_WORLD_pn-</filename><replaceable>recipename</replaceable>
-        for recipes you want to exclude.
-        However, it is assumed that you would need to be building the "world"
-        target if you want to provide additional items to the SDK.
-        Consequently, building for "world" should not represent undue
-        overhead in most cases.
-        <note>
-            If you set <filename>SDK_EXT_TYPE</filename> to "minimal",
-            then providing a shared state mirror is mandatory so that items
-            can be installed as needed.
-            See the
-            "<link linkend='sdk-providing-additional-installable-extensible-sdk-content'>Providing Additional Installable Extensible SDK Content</link>"
-            section for more information.
-        </note>
-    </para>
-
-    <para>
-        You can explicitly control whether or not to include the toolchain
-        when you build an SDK by setting the
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_INCLUDE_TOOLCHAIN'><filename>SDK_INCLUDE_TOOLCHAIN</filename></ulink>
-        variable to "1".
-        In particular, it is useful to include the toolchain when you
-        have set <filename>SDK_EXT_TYPE</filename> to "minimal", which by
-        default, excludes the toolchain.
-        Also, it is helpful if you are building a small SDK for use with
-        an IDE or some
-        other tool where you do not want to take extra steps to install a
-        toolchain.
-    </para>
-</section>
-</appendix>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/sdk-manual/sdk-appendix-obtain.rst b/poky/documentation/sdk-manual/sdk-appendix-obtain.rst
index 97ab916..a51c22e 100644
--- a/poky/documentation/sdk-manual/sdk-appendix-obtain.rst
+++ b/poky/documentation/sdk-manual/sdk-appendix-obtain.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *****************
 Obtaining the SDK
diff --git a/poky/documentation/sdk-manual/sdk-appendix-obtain.xml b/poky/documentation/sdk-manual/sdk-appendix-obtain.xml
deleted file mode 100644
index de7f75e..0000000
--- a/poky/documentation/sdk-manual/sdk-appendix-obtain.xml
+++ /dev/null
@@ -1,444 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<appendix id='sdk-appendix-obtain'>
-
-<title>Obtaining the SDK</title>
-
-<section id='sdk-locating-pre-built-sdk-installers'>
-    <title>Locating Pre-Built SDK Installers</title>
-
-    <para>
-        You can use existing, pre-built toolchains by locating and running
-        an SDK installer script that ships with the Yocto Project.
-        Using this method, you select and download an architecture-specific
-        SDK installer and then run the script to hand-install the
-        toolchain.
-    </para>
-
-    <para>
-        Follow these steps to locate and hand-install the toolchain:
-        <orderedlist>
-            <listitem><para>
-                <emphasis>Go to the Installers Directory:</emphasis>
-                Go to <ulink url='&YOCTO_TOOLCHAIN_DL_URL;'></ulink>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Open the Folder for Your Build Host:</emphasis>
-                Open the folder that matches your
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>build host</ulink>
-                (i.e. <filename>i686</filename> for 32-bit machines or
-                <filename>x86_64</filename> for 64-bit machines).
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Locate and Download the SDK Installer:</emphasis>
-                You need to find and download the installer appropriate for
-                your build host, target hardware, and image type.
-                </para>
-
-                <para>The installer files (<filename>*.sh</filename>) follow
-                this naming convention:
-                <literallayout class='monospaced'>
-     poky-glibc-<replaceable>host_system</replaceable>-core-image-<replaceable>type</replaceable>-<replaceable>arch</replaceable>-toolchain[-ext]-<replaceable>release</replaceable>.sh
-
-     Where:
-         <replaceable>host_system</replaceable> is a string representing your development system:
-                "i686" or "x86_64"
-
-         <replaceable>type</replaceable> is a string representing the image:
-                "sato" or "minimal"
-
-         <replaceable>arch</replaceable> is a string representing the target architecture:
-                "aarch64", "armv5e", "core2-64", "coretexa8hf-neon", "i586", "mips32r2",
-                "mips64", or "ppc7400"
-
-         <replaceable>release</replaceable> is the version of Yocto Project.
-
-         NOTE:
-            The standard SDK installer does not have the "-ext" string as
-            part of the filename.
-
-                </literallayout>
-                The toolchains provided by the Yocto Project are based off of
-                the <filename>core-image-sato</filename> and
-                <filename>core-image-minimal</filename> images and contain
-                libraries appropriate for developing against those images.
-                </para>
-
-                <para>For example, if your build host is a 64-bit x86 system
-                and you need an extended SDK for a 64-bit core2 target, go
-                into the <filename>x86_64</filename> folder and download the
-                following installer:
-                <literallayout class='monospaced'>
-     poky-glibc-x86_64-core-image-sato-core2-64-toolchain-ext-&DISTRO;.sh
-                </literallayout>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Run the Installer:</emphasis>
-                Be sure you have execution privileges and run the installer.
-                Following is an example from the <filename>Downloads</filename>
-                directory:
-                <literallayout class='monospaced'>
-     $ ~/Downloads/poky-glibc-x86_64-core-image-sato-core2-64-toolchain-ext-&DISTRO;.sh
-                </literallayout>
-                During execution of the script, you choose the root location
-                for the toolchain.
-                See the
-                "<link linkend='sdk-installed-standard-sdk-directory-structure'>Installed Standard SDK Directory Structure</link>"
-                section and the
-                "<link linkend='sdk-installed-extensible-sdk-directory-structure'>Installed Extensible SDK Directory Structure</link>"
-                section for more information.
-                </para></listitem>
-        </orderedlist>
-    </para>
-</section>
-
-<section id='sdk-building-an-sdk-installer'>
-    <title>Building an SDK Installer</title>
-
-    <para>
-        As an alternative to locating and downloading an SDK installer,
-        you can build the SDK installer.
-        Follow these steps:
-        <orderedlist>
-            <listitem><para>
-                <emphasis>Set Up the Build Environment:</emphasis>
-                Be sure you are set up to use BitBake in a shell.
-                See the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-preparing-the-build-host'>Preparing the Build Host</ulink>"
-                section in the Yocto Project Development Tasks Manual for
-                information on how to get a build host ready that is either a
-                native Linux machine or a machine that uses CROPS.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Clone the <filename>poky</filename> Repository:</emphasis>
-                You need to have a local copy of the Yocto Project
-                <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                (i.e. a local <filename>poky</filename> repository).
-                See the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#cloning-the-poky-repository'>Cloning the <filename>poky</filename> Repository</ulink>"
-                and possibly the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#checking-out-by-branch-in-poky'>Checking Out by Branch in Poky</ulink>"
-                and
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#checkout-out-by-tag-in-poky'>Checking Out by Tag in Poky</ulink>"
-                sections all in the Yocto Project Development Tasks Manual for
-                information on how to clone the <filename>poky</filename>
-                repository and check out the appropriate branch for your work.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Initialize the Build Environment:</emphasis>
-                While in the root directory of the Source Directory (i.e.
-                <filename>poky</filename>), run the
-                <ulink url='&YOCTO_DOCS_REF_URL;#structure-core-script'><filename>&OE_INIT_FILE;</filename></ulink>
-                environment setup script to define the OpenEmbedded
-                build environment on your build host.
-                <literallayout class='monospaced'>
-     $ source &OE_INIT_FILE;
-                </literallayout>
-                Among other things, the script creates the
-                <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>,
-                which is <filename>build</filename> in this case
-                and is located in the Source Directory.
-                After the script runs, your current working directory
-                is set to the <filename>build</filename> directory.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Make Sure You Are Building an Installer for the Correct Machine:</emphasis>
-                Check to be sure that your
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink>
-                variable in the <filename>local.conf</filename> file in your
-                Build Directory matches the architecture for which you are
-                building.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Make Sure Your SDK Machine is Correctly Set:</emphasis>
-                If you are building a toolchain designed to run on an
-                architecture that differs from your current development host
-                machine (i.e. the build host), be sure that the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SDKMACHINE'><filename>SDKMACHINE</filename></ulink>
-                variable in the <filename>local.conf</filename> file in your
-                Build Directory is correctly set.
-                <note>
-                    If you are building an SDK installer for the Extensible
-                    SDK, the <filename>SDKMACHINE</filename> value must be
-                    set for the architecture of the machine you are using to
-                    build the installer.
-                    If <filename>SDKMACHINE</filename> is not set appropriately,
-                    the build fails and provides an error message similar to
-                    the following:
-                    <literallayout class='monospaced'>
-     The extensible SDK can currently only be built for the same architecture as the machine being built on - SDK_ARCH is
-     set to i686 (likely via setting SDKMACHINE) which is different from the architecture of the build machine (x86_64).
-     Unable to continue.
-                    </literallayout>
-                </note>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Build the SDK Installer:</emphasis>
-                To build the SDK installer for a standard SDK and populate
-                the SDK image, use the following command form.
-                Be sure to replace <replaceable>image</replaceable> with
-                an image (e.g. "core-image-sato"):
-                <literallayout class='monospaced'>
-     $ bitbake <replaceable>image</replaceable> -c populate_sdk
-                </literallayout>
-                You can do the same for the extensible SDK using this command
-                form:
-                <literallayout class='monospaced'>
-     $ bitbake <replaceable>image</replaceable> -c populate_sdk_ext
-                </literallayout>
-                These commands produce an SDK installer that contains the
-                sysroot that matches your target root filesystem.</para>
-
-                <para>When the <filename>bitbake</filename> command completes,
-                the SDK installer will be in
-                <filename>tmp/deploy/sdk</filename> in the Build Directory.
-                <note><title>Notes</title>
-                    <itemizedlist>
-                        <listitem><para>
-                            By default, the previous BitBake command does not
-                            build static binaries.
-                            If you want to use the toolchain to build these
-                            types of libraries, you need to be sure your SDK
-                            has the appropriate static development libraries.
-                            Use the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-TOOLCHAIN_TARGET_TASK'><filename>TOOLCHAIN_TARGET_TASK</filename></ulink>
-                            variable inside your <filename>local.conf</filename>
-                            file before building the SDK installer.
-                            Doing so ensures that the eventual SDK installation
-                            process installs the appropriate library packages
-                            as part of the SDK.
-                            Following is an example using
-                            <filename>libc</filename> static development
-                            libraries:
-                            <literallayout class='monospaced'>
-     TOOLCHAIN_TARGET_TASK_append = " libc-staticdev"
-                            </literallayout>
-                            </para></listitem>
-                    </itemizedlist>
-                </note>
-            </para></listitem>
-            <listitem><para>
-                <emphasis>Run the Installer:</emphasis>
-                You can now run the SDK installer from
-                <filename>tmp/deploy/sdk</filename> in the Build Directory.
-                Following is an example:
-                <literallayout class='monospaced'>
-     $ cd ~/poky/build/tmp/deploy/sdk
-     $ ./poky-glibc-x86_64-core-image-sato-core2-64-toolchain-ext-&DISTRO;.sh
-                </literallayout>
-                During execution of the script, you choose the root location
-                for the toolchain.
-                See the
-                "<link linkend='sdk-installed-standard-sdk-directory-structure'>Installed Standard SDK Directory Structure</link>"
-                section and the
-                "<link linkend='sdk-installed-extensible-sdk-directory-structure'>Installed Extensible SDK Directory Structure</link>"
-                section for more information.
-                </para></listitem>
-        </orderedlist>
-    </para>
-</section>
-
-<section id='sdk-extracting-the-root-filesystem'>
-    <title>Extracting the Root Filesystem</title>
-
-    <para>
-        After installing the toolchain, for some use cases you
-        might need to separately extract a root filesystem:
-        <itemizedlist>
-            <listitem><para>
-                You want to boot the image using NFS.
-                </para></listitem>
-            <listitem><para>
-                You want to use the root filesystem as the
-                target sysroot.
-                </para></listitem>
-            <listitem><para>
-                You want to develop your target application
-                using the root filesystem as the target sysroot.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        Follow these steps to extract the root filesystem:
-        <orderedlist>
-            <listitem><para>
-                <emphasis>Locate and Download the Tarball for the Pre-Built
-                Root Filesystem Image File:</emphasis>
-                You need to find and download the root filesystem image
-                file that is appropriate for your target system.
-                These files are kept in machine-specific folders in the
-                <ulink url='&YOCTO_DL_URL;/releases/yocto/yocto-&DISTRO;/machines/'>Index of Releases</ulink>
-                in the "machines" directory.</para>
-
-                <para>The machine-specific folders of the "machines" directory
-                contain tarballs (<filename>*.tar.bz2</filename>) for supported
-                machines.
-                These directories also contain flattened root filesystem
-                image files (<filename>*.ext4</filename>), which you can use
-                with QEMU directly.</para>
-
-                <para>The pre-built root filesystem image files
-                follow these naming conventions:
-                <literallayout class='monospaced'>
-<!--
-     core-image-<replaceable>profile</replaceable>-<replaceable>arch</replaceable>-<replaceable>date_time</replaceable>.rootfs.tar.bz2
--->
-     core-image-<replaceable>profile</replaceable>-<replaceable>arch</replaceable>.tar.bz2
-
-     Where:
-         <replaceable>profile</replaceable> is the filesystem image's profile:
-                   lsb, lsb-dev, lsb-sdk, minimal, minimal-dev, minimal-initramfs,
-                   sato, sato-dev, sato-sdk, sato-sdk-ptest. For information on
-                   these types of image profiles, see the "<ulink url='&YOCTO_DOCS_REF_URL;#ref-images'>Images</ulink>" chapter in
-                   the Yocto Project Reference Manual.
-
-         <replaceable>arch</replaceable> is a string representing the target architecture:
-                   beaglebone-yocto, beaglebone-yocto-lsb, edgerouter, edgerouter-lsb,
-                   genericx86, genericx86-64, genericx86-64-lsb, genericx86-lsb and qemu*.
-
-<!-->
-         <replaceable>date_time</replaceable> is a date and time stamp.
--->
-
-                </literallayout>
-                The root filesystems provided by the Yocto Project are based
-                off of the <filename>core-image-sato</filename> and
-                <filename>core-image-minimal</filename> images.
-                </para>
-
-                <para>For example, if you plan on using a BeagleBone device
-                as your target hardware and your image is a
-                <filename>core-image-sato-sdk</filename>
-                image, you can download the following file:
-                <literallayout class='monospaced'>
-     core-image-sato-sdk-beaglebone-yocto.tar.bz2
-                </literallayout>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Initialize the Cross-Development Environment:</emphasis>
-                You must <filename>source</filename> the cross-development
-                environment setup script to establish necessary environment
-                variables.</para>
-
-                <para>This script is located in the top-level directory in
-                which you installed the toolchain (e.g.
-                <filename>poky_sdk</filename>).</para>
-
-                <para>Following is an example based on the toolchain installed
-                in the
-                "<link linkend='sdk-locating-pre-built-sdk-installers'>Locating Pre-Built SDK Installers</link>"
-                section:
-                <literallayout class='monospaced'>
-     $ source ~/poky_sdk/environment-setup-core2-64-poky-linux
-                </literallayout>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Extract the Root Filesystem:</emphasis>
-                Use the <filename>runqemu-extract-sdk</filename> command
-                and provide the root filesystem image.</para>
-
-                <para>Following is an example command that extracts the root
-                filesystem from a previously built root filesystem image that
-                was downloaded from the
-                <ulink url='&YOCTO_DOCS_OM_URL;#index-downloads'>Index of Releases</ulink>.
-                This command extracts the root filesystem into the
-                <filename>core2-64-sato</filename> directory:
-                <literallayout class='monospaced'>
-     $ runqemu-extract-sdk ~/Downloads/core-image-sato-sdk-beaglebone-yocto.tar.bz2 ~/beaglebone-sato
-                </literallayout>
-                You could now point to the target sysroot at
-                <filename>beablebone-sato</filename>.
-                </para></listitem>
-        </orderedlist>
-    </para>
-</section>
-
-<section id='sdk-installed-standard-sdk-directory-structure'>
-    <title>Installed Standard SDK Directory Structure</title>
-
-    <para>
-        The following figure shows the resulting directory structure after
-        you install the Standard SDK by running the <filename>*.sh</filename>
-        SDK installation script:
-    </para>
-
-    <para>
-        <imagedata fileref="figures/sdk-installed-standard-sdk-directory.png" scale="80" align="center" />
-    </para>
-
-    <para>
-        The installed SDK consists of an environment setup script for the SDK,
-        a configuration file for the target, a version file for the target,
-        and the root filesystem (<filename>sysroots</filename>) needed to
-        develop objects for the target system.
-    </para>
-
-    <para>
-        Within the figure, italicized text is used to indicate replaceable
-        portions of the file or directory name.
-        For example,
-        <replaceable>install_dir</replaceable>/<replaceable>version</replaceable>
-        is the directory where the SDK is installed.
-        By default, this directory is <filename>/opt/poky/</filename>.
-        And, <replaceable>version</replaceable> represents the specific
-        snapshot of the SDK (e.g. <filename>&DISTRO;</filename>).
-        Furthermore, <replaceable>target</replaceable> represents the target
-        architecture (e.g. <filename>i586</filename>) and
-        <replaceable>host</replaceable> represents the development system's
-        architecture (e.g. <filename>x86_64</filename>).
-        Thus, the complete names of the two directories within the
-        <filename>sysroots</filename> could be
-        <filename>i586-poky-linux</filename> and
-        <filename>x86_64-pokysdk-linux</filename> for the target and host,
-        respectively.
-    </para>
-</section>
-
-<section id='sdk-installed-extensible-sdk-directory-structure'>
-    <title>Installed Extensible SDK Directory Structure</title>
-
-    <para>
-        The following figure shows the resulting directory structure after
-        you install the Extensible SDK by running the <filename>*.sh</filename>
-        SDK installation script:
-    </para>
-
-    <para>
-        <imagedata fileref="figures/sdk-installed-extensible-sdk-directory.png" scale="80" align="center" />
-    </para>
-
-    <para>
-        The installed directory structure for the extensible SDK is quite
-        different than the installed structure for the standard SDK.
-        The extensible SDK does not separate host and target parts in the
-        same manner as does the standard SDK.
-        The extensible SDK uses an embedded copy of the OpenEmbedded
-        build system, which has its own sysroots.
-    </para>
-
-    <para>
-        Of note in the directory structure are an environment setup script
-        for the SDK, a configuration file for the target, a version file for
-        the target, and log files for the OpenEmbedded build system
-        preparation script run by the installer and BitBake.
-    </para>
-
-    <para>
-        Within the figure, italicized text is used to indicate replaceable
-        portions of the file or directory name.
-        For example,
-        <replaceable>install_dir</replaceable> is the directory where the SDK
-        is installed, which is <filename>poky_sdk</filename> by default, and
-        <replaceable>target</replaceable> represents the target
-        architecture (e.g. <filename>i586</filename>).
-    </para>
-</section>
-
-</appendix>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/sdk-manual/sdk-extensible.rst b/poky/documentation/sdk-manual/sdk-extensible.rst
index 0f92ac9..5ff75ad 100644
--- a/poky/documentation/sdk-manual/sdk-extensible.rst
+++ b/poky/documentation/sdk-manual/sdk-extensible.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ************************
 Using the Extensible SDK
diff --git a/poky/documentation/sdk-manual/sdk-extensible.xml b/poky/documentation/sdk-manual/sdk-extensible.xml
deleted file mode 100644
index a73a07a..0000000
--- a/poky/documentation/sdk-manual/sdk-extensible.xml
+++ /dev/null
@@ -1,1847 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='sdk-extensible'>
-
-    <title>Using the Extensible SDK</title>
-
-    <para>
-        This chapter describes the extensible SDK and how to install it.
-        Information covers the pieces of the SDK, how to install it, and
-        presents a look at using the <filename>devtool</filename>
-        functionality.
-        The extensible SDK makes it easy to add new applications and libraries
-        to an image, modify the source for an existing component, test
-        changes on the target hardware, and ease integration into the rest of
-        the
-        <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>.
-        <note>
-            For a side-by-side comparison of main features supported for an
-            extensible SDK as compared to a standard SDK, see the
-            "<link linkend='sdk-manual-intro'>Introduction</link>"
-            section.
-        </note>
-    </para>
-
-    <para>
-        In addition to the functionality available through
-        <filename>devtool</filename>, you can alternatively make use of the
-        toolchain directly, for example from Makefile and Autotools.
-        See the
-        "<link linkend='sdk-working-projects'>Using the SDK Toolchain Directly</link>"
-        chapter for more information.
-    </para>
-
-    <section id='sdk-extensible-sdk-intro'>
-        <title>Why use the Extensible SDK and What is in It?</title>
-
-        <para>
-            The extensible SDK provides a cross-development toolchain and
-            libraries tailored to the contents of a specific image.
-            You would use the Extensible SDK if you want a toolchain experience
-            supplemented with the powerful set of <filename>devtool</filename>
-            commands tailored for the Yocto Project environment.
-        </para>
-
-        <para>
-            The installed extensible SDK consists of several files and
-            directories.
-            Basically, it contains an SDK environment setup script, some
-            configuration files, an internal build system, and the
-            <filename>devtool</filename> functionality.
-        </para>
-    </section>
-
-    <section id='sdk-installing-the-extensible-sdk'>
-        <title>Installing the Extensible SDK</title>
-
-        <para>
-            The first thing you need to do is install the SDK on your
-            <ulink url='&YOCTO_DOCS_REF_URL;#hardware-build-system-term'>Build Host</ulink>
-            by running the <filename>*.sh</filename> installation script.
-        </para>
-
-        <para>
-            You can download a tarball installer, which includes the
-            pre-built toolchain, the <filename>runqemu</filename>
-            script, the internal build system, <filename>devtool</filename>,
-            and support files from the appropriate
-            <ulink url='&YOCTO_TOOLCHAIN_DL_URL;'>toolchain</ulink>
-            directory within the Index of Releases.
-            Toolchains are available for several 32-bit and 64-bit
-            architectures with the <filename>x86_64</filename> directories,
-            respectively.
-            The toolchains the Yocto Project provides are based off the
-            <filename>core-image-sato</filename> and
-            <filename>core-image-minimal</filename> images and contain
-            libraries appropriate for developing against that image.
-        </para>
-
-        <para>
-            The names of the tarball installer scripts are such that a
-            string representing the host system appears first in the
-            filename and then is immediately followed by a string
-            representing the target architecture.
-            An extensible SDK has the string "-ext" as part of the name.
-            Following is the general form:
-            <literallayout class='monospaced'>
-     poky-glibc-<replaceable>host_system</replaceable>-<replaceable>image_type</replaceable>-<replaceable>arch</replaceable>-toolchain-ext-<replaceable>release_version</replaceable>.sh
-
-     Where:
-         <replaceable>host_system</replaceable> is a string representing your development system:
-
-                    i686 or x86_64.
-
-         <replaceable>image_type</replaceable> is the image for which the SDK was built:
-
-                    core-image-sato or core-image-minimal
-
-         <replaceable>arch</replaceable> is a string representing the tuned target architecture:
-
-                    aarch64, armv5e, core2-64, i586, mips32r2, mips64, ppc7400, or cortexa8hf-neon
-
-         <replaceable>release_version</replaceable> is a string representing the release number of the Yocto Project:
-
-                    &DISTRO;, &DISTRO;+snapshot
-            </literallayout>
-            For example, the following SDK installer is for a 64-bit
-            development host system and a i586-tuned target architecture
-            based off the SDK for <filename>core-image-sato</filename> and
-            using the current &DISTRO; snapshot:
-            <literallayout class='monospaced'>
-     poky-glibc-x86_64-core-image-sato-i586-toolchain-ext-&DISTRO;.sh
-            </literallayout>
-            <note>
-                As an alternative to downloading an SDK, you can build the
-                SDK installer.
-                For information on building the installer, see the
-                "<link linkend='sdk-building-an-sdk-installer'>Building an SDK Installer</link>"
-                section.
-            </note>
-        </para>
-
-        <para>
-            The SDK and toolchains are self-contained and by default are
-            installed into the <filename>poky_sdk</filename> folder in your
-            home directory.
-            You can choose to install the extensible SDK in any location when
-            you run the installer.
-            However, because files need to be written under that directory
-            during the normal course of operation, the location you choose
-            for installation must be writable for whichever
-            users need to use the SDK.
-        </para>
-
-        <para>
-            The following command shows how to run the installer given a
-            toolchain tarball for a 64-bit x86 development host system and
-            a 64-bit x86 target architecture.
-            The example assumes the SDK installer is located in
-            <filename>~/Downloads/</filename> and has execution rights.
-            <note>
-                If you do not have write permissions for the directory
-                into which you are installing the SDK, the installer
-                notifies you and exits.
-                For that case, set up the proper permissions in the directory
-                and run the installer again.
-            </note>
-            <literallayout class='monospaced'>
-     $ ./Downloads/poky-glibc-x86_64-core-image-minimal-core2-64-toolchain-ext-2.5.sh
-     Poky (Yocto Project Reference Distro) Extensible SDK installer version 2.5
-     ==========================================================================
-     Enter target directory for SDK (default: ~/poky_sdk):
-     You are about to install the SDK to "/home/scottrif/poky_sdk". Proceed [Y/n]? Y
-     Extracting SDK..............done
-     Setting it up...
-     Extracting buildtools...
-     Preparing build system...
-     Parsing recipes: 100% |##################################################################| Time: 0:00:52
-     Initialising tasks: 100% |###############################################################| Time: 0:00:00
-     Checking sstate mirror object availability: 100% |#######################################| Time: 0:00:00
-     Loading cache: 100% |####################################################################| Time: 0:00:00
-     Initialising tasks: 100% |###############################################################| Time: 0:00:00
-     done
-     SDK has been successfully set up and is ready to be used.
-     Each time you wish to use the SDK in a new shell session, you need to source the environment setup script e.g.
-      $ . /home/scottrif/poky_sdk/environment-setup-core2-64-poky-linux
-
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='sdk-running-the-extensible-sdk-environment-setup-script'>
-        <title>Running the Extensible SDK Environment Setup Script</title>
-
-        <para>
-            Once you have the SDK installed, you must run the SDK environment
-            setup script before you can actually use the SDK.
-            This setup script resides in the directory you chose when you
-            installed the SDK, which is either the default
-            <filename>poky_sdk</filename> directory or the directory you
-            chose during installation.
-        </para>
-
-        <para>
-            Before running the script, be sure it is the one that matches the
-            architecture for which you are developing.
-            Environment setup scripts begin with the string
-            "<filename>environment-setup</filename>" and include as part of
-            their name the tuned target architecture.
-            As an example, the following commands set the working directory
-            to where the SDK was installed and then source the environment
-            setup script.
-            In this example, the setup script is for an IA-based
-            target machine using i586 tuning:
-            <literallayout class='monospaced'>
-     $ cd /home/scottrif/poky_sdk
-     $ source environment-setup-core2-64-poky-linux
-     SDK environment now set up; additionally you may now run devtool to perform development tasks.
-     Run devtool --help for further details.
-            </literallayout>
-            Running the setup script defines many environment variables needed
-            in order to use the SDK (e.g. <filename>PATH</filename>,
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-CC'><filename>CC</filename></ulink>,
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-LD'><filename>LD</filename></ulink>,
-            and so forth).
-            If you want to see all the environment variables the script
-            exports, examine the installation file itself.
-        </para>
-    </section>
-
-    <section id='using-devtool-in-your-sdk-workflow'>
-        <title>Using <filename>devtool</filename> in Your SDK Workflow</title>
-
-        <para>
-            The cornerstone of the extensible SDK is a command-line tool
-            called <filename>devtool</filename>.
-            This tool provides a number of features that help
-            you build, test and package software within the extensible SDK, and
-            optionally integrate it into an image built by the OpenEmbedded
-            build system.
-            <note><title>Tip</title>
-                The use of <filename>devtool</filename> is not limited to
-                the extensible SDK.
-                You can use <filename>devtool</filename> to help you easily
-                develop any project whose build output must be part of an
-                image built using the build system.
-            </note>
-        </para>
-
-        <para>
-            The <filename>devtool</filename> command line is organized
-            similarly to
-            <ulink url='&YOCTO_DOCS_OM_URL;#git'>Git</ulink> in that it
-            has a number of sub-commands for each function.
-            You can run <filename>devtool --help</filename> to see all the
-            commands.
-            <note>
-                See the
-                "<ulink url='&YOCTO_DOCS_REF_URL;#ref-devtool-reference'><filename>devtool</filename>&nbsp;Quick Reference</ulink>"
-                in the Yocto Project Reference Manual for a
-                <filename>devtool</filename> quick reference.
-            </note>
-        </para>
-
-        <para>
-            Three <filename>devtool</filename> subcommands exist that provide
-            entry-points into development:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis><filename>devtool add</filename></emphasis>:
-                    Assists in adding new software to be built.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>devtool modify</filename></emphasis>:
-                    Sets up an environment to enable you to modify the source of
-                    an existing component.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis><filename>devtool upgrade</filename></emphasis>:
-                    Updates an existing recipe so that you can build it for
-                    an updated set of source files.
-                    </para></listitem>
-            </itemizedlist>
-            As with the build system, "recipes" represent software packages
-            within <filename>devtool</filename>.
-            When you use <filename>devtool add</filename>, a recipe is
-            automatically created.
-            When you use <filename>devtool modify</filename>, the specified
-            existing recipe is used in order to determine where to get the
-            source code and how to patch it.
-            In both cases, an environment is set up so that when you build the
-            recipe a source tree that is under your control is used in order to
-            allow you to make changes to the source as desired.
-            By default, new recipes and the source go into a "workspace"
-            directory under the SDK.
-        </para>
-
-        <para>
-            The remainder of this section presents the
-            <filename>devtool add</filename>,
-            <filename>devtool modify</filename>, and
-            <filename>devtool upgrade</filename> workflows.
-        </para>
-
-        <section id='sdk-use-devtool-to-add-an-application'>
-            <title>Use <filename>devtool add</filename> to Add an Application</title>
-
-            <para>
-                The <filename>devtool add</filename> command generates
-                a new recipe based on existing source code.
-                This command takes advantage of the
-                <ulink url='&YOCTO_DOCS_REF_URL;#devtool-the-workspace-layer-structure'>workspace</ulink>
-                layer that many <filename>devtool</filename> commands
-                use.
-                The command is flexible enough to allow you to extract source
-                code into both the workspace or a separate local Git repository
-                and to use existing code that does not need to be extracted.
-            </para>
-
-            <para>
-                Depending on your particular scenario, the arguments and options
-                you use with <filename>devtool add</filename> form different
-                combinations.
-                The following diagram shows common development flows
-                you would use with the <filename>devtool add</filename>
-                command:
-            </para>
-
-            <para>
-                <imagedata fileref="figures/sdk-devtool-add-flow.png" align="center" />
-            </para>
-
-            <para>
-                <orderedlist>
-                    <listitem><para><emphasis>Generating the New Recipe</emphasis>:
-                        The top part of the flow shows three scenarios by which
-                        you could use <filename>devtool add</filename> to
-                        generate a recipe based on existing source code.</para>
-
-                        <para>In a shared development environment, it is
-                        typical for other developers to be responsible for
-                        various areas of source code.
-                        As a developer, you are probably interested in using
-                        that source code as part of your development within
-                        the Yocto Project.
-                        All you need is access to the code, a recipe, and a
-                        controlled area in which to do your work.</para>
-
-                        <para>Within the diagram, three possible scenarios
-                        feed into the <filename>devtool add</filename> workflow:
-                        <itemizedlist>
-                            <listitem><para>
-                                <emphasis>Left</emphasis>:
-                                The left scenario in the figure represents a
-                                common situation where the source code does not
-                                exist locally and needs to be extracted.
-                                In this situation, the source code is extracted
-                                to the default workspace - you do not
-                                want the files in some specific location
-                                outside of the workspace.
-                                Thus, everything you need will be located in
-                                the workspace:
-                                <literallayout class='monospaced'>
-     $ devtool add <replaceable>recipe fetchuri</replaceable>
-                                </literallayout>
-                                With this command, <filename>devtool</filename>
-                                extracts the upstream source files into a local
-                                Git repository within the
-                                <filename>sources</filename> folder.
-                                The command then creates a recipe named
-                                <replaceable>recipe</replaceable> and a
-                                corresponding append file in the workspace.
-                                If you do not provide
-                                <replaceable>recipe</replaceable>, the command
-                                makes an attempt to determine the recipe name.
-                                </para></listitem>
-                            <listitem><para>
-                                <emphasis>Middle</emphasis>:
-                                The middle scenario in the figure also
-                                represents a situation where the source code
-                                does not exist locally.
-                                In this case, the code is again upstream
-                                and needs to be extracted to some
-                                local area - this time outside of the default
-                                workspace.
-                                <note>
-                                    If required, <filename>devtool</filename>
-                                    always creates
-                                    a Git repository locally during the
-                                    extraction.
-                                </note>
-                                Furthermore, the first positional argument
-                                <replaceable>srctree</replaceable> in this
-                                case identifies where the
-                                <filename>devtool add</filename> command
-                                will locate the extracted code outside of the
-                                workspace.
-                                You need to specify an empty directory:
-                                <literallayout class='monospaced'>
-     $ devtool add <replaceable>recipe srctree fetchuri</replaceable>
-                                </literallayout>
-                                In summary, the source code is pulled from
-                                <replaceable>fetchuri</replaceable> and
-                                extracted into the location defined by
-                                <replaceable>srctree</replaceable> as a local
-                                Git repository.</para>
-
-                                <para>Within workspace,
-                                <filename>devtool</filename> creates a
-                                recipe named <replaceable>recipe</replaceable>
-                                along with an associated append file.
-                                </para></listitem>
-                            <listitem><para>
-                                <emphasis>Right</emphasis>:
-                                The right scenario in the figure represents a
-                                situation where the
-                                <replaceable>srctree</replaceable> has been
-                                previously prepared outside of the
-                                <filename>devtool</filename> workspace.</para>
-
-                                <para>The following command provides a new
-                                recipe name and identifies the existing source
-                                tree location:
-                                <literallayout class='monospaced'>
-     $ devtool add <replaceable>recipe srctree</replaceable>
-                                </literallayout>
-                                The command examines the source code and
-                                creates a recipe named
-                                <replaceable>recipe</replaceable> for the code
-                                and places the recipe into the workspace.
-                                </para>
-
-                                <para>Because the extracted source code already
-                                exists, <filename>devtool</filename> does not
-                                try to relocate the source code into the
-                                workspace - only the new recipe is placed
-                                in the workspace.</para>
-
-                                <para>Aside from a recipe folder, the command
-                                also creates an associated append folder and
-                                places an initial
-                                <filename>*.bbappend</filename> file within.
-                                </para></listitem>
-                        </itemizedlist>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Edit the Recipe</emphasis>:
-                        You can use <filename>devtool edit-recipe</filename>
-                        to open up the editor as defined by the
-                        <filename>$EDITOR</filename> environment variable
-                        and modify the file:
-                        <literallayout class='monospaced'>
-     $ devtool edit-recipe <replaceable>recipe</replaceable>
-                        </literallayout>
-                        From within the editor, you can make modifications to
-                        the recipe that take affect when you build it later.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Build the Recipe or Rebuild the Image</emphasis>:
-                        The next step you take depends on what you are going
-                        to do with the new code.</para>
-
-                        <para>If you need to eventually move the build output
-                        to the target hardware, use the following
-                        <filename>devtool</filename> command:
-                        <literallayout class='monospaced'>
-     $ devtool build <replaceable>recipe</replaceable>
-                        </literallayout></para>
-
-                        <para>On the other hand, if you want an image to
-                        contain the recipe's packages from the workspace
-                        for immediate deployment onto a device (e.g. for
-                        testing purposes), you can use
-                        the <filename>devtool build-image</filename> command:
-                        <literallayout class='monospaced'>
-     $ devtool build-image <replaceable>image</replaceable>
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Deploy the Build Output</emphasis>:
-                        When you use the <filename>devtool build</filename>
-                        command to build out your recipe, you probably want to
-                        see if the resulting build output works as expected
-                        on the target hardware.
-                        <note>
-                            This step assumes you have a previously built
-                            image that is already either running in QEMU or
-                            is running on actual hardware.
-                            Also, it is assumed that for deployment of the
-                            image to the target, SSH is installed in the image
-                            and, if the image is running on real hardware,
-                            you have network access to and from your
-                            development machine.
-                        </note>
-                        You can deploy your build output to that target
-                        hardware by using the
-                        <filename>devtool deploy-target</filename> command:
-                        <literallayout class='monospaced'>
-     $ devtool deploy-target <replaceable>recipe target</replaceable>
-                        </literallayout>
-                        The <replaceable>target</replaceable> is a live target
-                        machine running as an SSH server.</para>
-
-                        <para>You can, of course, also deploy the image you
-                        build to actual hardware by using the
-                        <filename>devtool build-image</filename> command.
-                        However, <filename>devtool</filename> does not provide
-                        a specific command that allows you to deploy the
-                        image to actual hardware.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Finish Your Work With the Recipe</emphasis>:
-                        The <filename>devtool finish</filename> command creates
-                        any patches corresponding to commits in the local
-                        Git repository, moves the new recipe to a more permanent
-                        layer, and then resets the recipe so that the recipe is
-                        built normally rather than from the workspace.
-                        <literallayout class='monospaced'>
-     $ devtool finish <replaceable>recipe layer</replaceable>
-                        </literallayout>
-                        <note>
-                            Any changes you want to turn into patches must be
-                            committed to the Git repository in the source tree.
-                        </note></para>
-
-                        <para>As mentioned, the
-                        <filename>devtool finish</filename> command moves the
-                        final recipe to its permanent layer.
-                        </para>
-
-                        <para>As a final process of the
-                        <filename>devtool finish</filename> command, the state
-                        of the standard layers and the upstream source is
-                        restored so that you can build the recipe from those
-                        areas rather than the workspace.
-                        <note>
-                            You can use the <filename>devtool reset</filename>
-                            command to put things back should you decide you
-                            do not want to proceed with your work.
-                            If you do use this command, realize that the source
-                            tree is preserved.
-                        </note>
-                        </para></listitem>
-                </orderedlist>
-            </para>
-        </section>
-
-        <section id='sdk-devtool-use-devtool-modify-to-modify-the-source-of-an-existing-component'>
-            <title>Use <filename>devtool modify</filename> to Modify the Source of an Existing Component</title>
-
-            <para>
-                The <filename>devtool modify</filename> command prepares the
-                way to work on existing code that already has a local recipe in
-                place that is used to build the software.
-                The command is flexible enough to allow you to extract code
-                from an upstream source, specify the existing recipe, and
-                keep track of and gather any patch files from other developers
-                that are associated with the code.
-            </para>
-
-            <para>
-                Depending on your particular scenario, the arguments and options
-                you use with <filename>devtool modify</filename> form different
-                combinations.
-                The following diagram shows common development flows for the
-                <filename>devtool modify</filename> command:
-            </para>
-
-            <para>
-                <imagedata fileref="figures/sdk-devtool-modify-flow.png" align="center" />
-            </para>
-
-            <para>
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Preparing to Modify the Code</emphasis>:
-                        The top part of the flow shows three scenarios by which
-                        you could use <filename>devtool modify</filename> to
-                        prepare to work on source files.
-                        Each scenario assumes the following:
-                        <itemizedlist>
-                            <listitem><para>
-                                The recipe exists locally in a layer external
-                                to the <filename>devtool</filename> workspace.
-                                </para></listitem>
-                            <listitem><para>
-                                The source files exist either upstream in an
-                                un-extracted state or locally in a previously
-                                extracted state.
-                                </para></listitem>
-                        </itemizedlist>
-                        The typical situation is where another developer has
-                        created a layer for use with the Yocto Project and
-                        their recipe already resides in that layer.
-                        Furthermore, their source code is readily available
-                        either upstream or locally.
-                        <itemizedlist>
-                            <listitem><para>
-                                <emphasis>Left</emphasis>:
-                                The left scenario in the figure represents a
-                                common situation where the source code does
-                                not exist locally and it needs to be extracted
-                                from an upstream source.
-                                In this situation, the source is extracted
-                                into the default <filename>devtool</filename>
-                                workspace location.
-                                The recipe, in this scenario, is in its own
-                                layer outside the workspace
-                                (i.e.
-                                <filename>meta-</filename><replaceable>layername</replaceable>).
-                                </para>
-
-                                <para>The following command identifies the
-                                recipe and, by default, extracts the source
-                                files:
-                                <literallayout class='monospaced'>
-     $ devtool modify <replaceable>recipe</replaceable>
-                                </literallayout>
-                                Once <filename>devtool</filename>locates the
-                                recipe, <filename>devtool</filename> uses the
-                                recipe's
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                                statements to locate the source code and any
-                                local patch files from other developers.</para>
-
-                                <para>With this scenario, no
-                                <replaceable>srctree</replaceable> argument
-                                exists.
-                                Consequently, the default behavior of the
-                                <filename>devtool modify</filename> command is
-                                to extract the source files pointed to by the
-                                <filename>SRC_URI</filename> statements into a
-                                local Git structure.
-                                Furthermore, the location for the extracted
-                                source is the default area within the
-                                <filename>devtool</filename> workspace.
-                                The result is that the command sets up both
-                                the source code and an append file within the
-                                workspace while the recipe remains in its
-                                original location.</para>
-
-                                <para>Additionally, if you have any non-patch
-                                local files (i.e. files referred to with
-                                <filename>file://</filename> entries in
-                                <filename>SRC_URI</filename> statement excluding
-                                <filename>*.patch/</filename> or
-                                <filename>*.diff</filename>), these files are
-                                copied to an
-                                <filename>oe-local-files</filename> folder
-                                under the newly created source tree.
-                                Copying the files here gives you a convenient
-                                area from which you can modify the files.
-                                Any changes or additions you make to those
-                                files are incorporated into the build the next
-                                time you build the software just as are other
-                                changes you might have made to the source.
-                                </para></listitem>
-                            <listitem><para>
-                                <emphasis>Middle</emphasis>:
-                                The middle scenario in the figure represents a
-                                situation where the source code also does not
-                                exist locally.
-                                In this case, the code is again upstream
-                                and needs to be extracted to some
-                                local area as a Git repository.
-                                The recipe, in this scenario, is again local
-                                and in its own layer outside the workspace.
-                                </para>
-
-                                <para>The following command tells
-                                <filename>devtool</filename> the recipe with
-                                which to work and, in this case, identifies a
-                                local area for the extracted source files that
-                                exists outside of the default
-                                <filename>devtool</filename> workspace:
-                                <literallayout class='monospaced'>
-     $ devtool modify <replaceable>recipe srctree</replaceable>
-                                </literallayout>
-                                <note>
-                                    You cannot provide a URL for
-                                    <replaceable>srctree</replaceable> using
-                                    the <filename>devtool</filename> command.
-                                </note>
-                                As with all extractions, the command uses
-                                the recipe's <filename>SRC_URI</filename>
-                                statements to locate the source files and any
-                                associated patch files.
-                                Non-patch files are copied to an
-                                <filename>oe-local-files</filename> folder
-                                under the newly created source tree.</para>
-
-                                <para>Once the files are located, the command
-                                by default extracts them into
-                                <replaceable>srctree</replaceable>.</para>
-
-                                <para>Within workspace,
-                                <filename>devtool</filename> creates an append
-                                file for the recipe.
-                                The recipe remains in its original location but
-                                the source files are extracted to the location
-                                you provide with
-                                <replaceable>srctree</replaceable>.
-                                </para></listitem>
-                            <listitem><para>
-                                <emphasis>Right</emphasis>:
-                                The right scenario in the figure represents a
-                                situation where the source tree
-                                (<replaceable>srctree</replaceable>) already
-                                exists locally as a previously extracted Git
-                                structure outside of the
-                                <filename>devtool</filename> workspace.
-                                In this example, the recipe also exists
-                                elsewhere locally in its own layer.
-                                </para>
-
-                                <para>The following command tells
-                                <filename>devtool</filename> the recipe
-                                with which to work, uses the "-n" option to
-                                indicate source does not need to be extracted,
-                                and uses <replaceable>srctree</replaceable> to
-                                point to the previously extracted source files:
-                                <literallayout class='monospaced'>
-     $ devtool modify -n <replaceable>recipe srctree</replaceable>
-                                </literallayout>
-                                </para>
-
-                                <para>If an <filename>oe-local-files</filename>
-                                subdirectory happens to exist and it contains
-                                non-patch files, the files are used.
-                                However, if the subdirectory does not exist and
-                                you run the <filename>devtool finish</filename>
-                                command, any non-patch files that might exist
-                                next to the recipe are removed because it
-                                appears to <filename>devtool</filename> that
-                                you have deleted those files.</para>
-
-                                <para>Once the
-                                <filename>devtool modify</filename> command
-                                finishes, it creates only an append file for
-                                the recipe in the <filename>devtool</filename>
-                                workspace.
-                                The recipe and the source code remain in their
-                                original locations.
-                                </para></listitem>
-                            </itemizedlist>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Edit the Source</emphasis>:
-                        Once you have used the
-                        <filename>devtool modify</filename> command, you are
-                        free to make changes to the source files.
-                        You can use any editor you like to make and save
-                        your source code modifications.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Build the Recipe or Rebuild the Image</emphasis>:
-                        The next step you take depends on what you are going
-                        to do with the new code.</para>
-
-                        <para>If you need to eventually move the build output
-                        to the target hardware, use the following
-                        <filename>devtool</filename> command:
-                        <literallayout class='monospaced'>
-     $ devtool build <replaceable>recipe</replaceable>
-                        </literallayout></para>
-
-                        <para>On the other hand, if you want an image to
-                        contain the recipe's packages from the workspace
-                        for immediate deployment onto a device (e.g. for
-                        testing purposes), you can use
-                        the <filename>devtool build-image</filename> command:
-                        <literallayout class='monospaced'>
-     $ devtool build-image <replaceable>image</replaceable>
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Deploy the Build Output</emphasis>:
-                        When you use the <filename>devtool build</filename>
-                        command to build out your recipe, you probably want to
-                        see if the resulting build output works as expected
-                        on target hardware.
-                        <note>
-                            This step assumes you have a previously built
-                            image that is already either running in QEMU or
-                            running on actual hardware.
-                            Also, it is assumed that for deployment of the image
-                            to the target, SSH is installed in the image and if
-                            the image is running on real hardware that you have
-                            network access to and from your development machine.
-                        </note>
-                        You can deploy your build output to that target
-                        hardware by using the
-                        <filename>devtool deploy-target</filename> command:
-                        <literallayout class='monospaced'>
-     $ devtool deploy-target <replaceable>recipe target</replaceable>
-                        </literallayout>
-                        The <replaceable>target</replaceable> is a live target
-                        machine running as an SSH server.</para>
-
-                        <para>You can, of course, use other methods to deploy
-                        the image you built using the
-                        <filename>devtool build-image</filename> command to
-                        actual hardware.
-                        <filename>devtool</filename> does not provide
-                        a specific command to deploy the image to actual
-                        hardware.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Finish Your Work With the Recipe</emphasis>:
-                        The <filename>devtool finish</filename> command creates
-                        any patches corresponding to commits in the local
-                        Git repository, updates the recipe to point to them
-                        (or creates a <filename>.bbappend</filename> file to do
-                        so, depending on the specified destination layer), and
-                        then resets the recipe so that the recipe is built
-                        normally rather than from the workspace.
-                        <literallayout class='monospaced'>
-     $ devtool finish <replaceable>recipe layer</replaceable>
-                        </literallayout>
-                        <note>
-                            Any changes you want to turn into patches must be
-                            staged and committed within the local Git
-                            repository before you use the
-                            <filename>devtool finish</filename> command.
-                        </note></para>
-
-                        <para>Because there is no need to move the recipe,
-                        <filename>devtool finish</filename> either updates the
-                        original recipe in the original layer or the command
-                        creates a <filename>.bbappend</filename> file in a
-                        different layer as provided by
-                        <replaceable>layer</replaceable>.
-                        Any work you did in the
-                        <filename>oe-local-files</filename> directory is
-                        preserved in the original files next to the recipe
-                        during the <filename>devtool finish</filename>
-                        command.</para>
-
-                        <para>As a final process of the
-                        <filename>devtool finish</filename> command, the state
-                        of the standard layers and the upstream source is
-                        restored so that you can build the recipe from those
-                        areas rather than from the workspace.
-                        <note>
-                            You can use the <filename>devtool reset</filename>
-                            command to put things back should you decide you
-                            do not want to proceed with your work.
-                            If you do use this command, realize that the source
-                            tree is preserved.
-                        </note>
-                        </para></listitem>
-                </orderedlist>
-            </para>
-        </section>
-
-        <section id='sdk-devtool-use-devtool-upgrade-to-create-a-version-of-the-recipe-that-supports-a-newer-version-of-the-software'>
-            <title>Use <filename>devtool upgrade</filename> to Create a Version of the Recipe that Supports a Newer Version of the Software</title>
-
-            <para>
-                The <filename>devtool upgrade</filename> command upgrades
-                an existing recipe to that of a more up-to-date version
-                found upstream.
-                Throughout the life of software, recipes continually undergo
-                version upgrades by their upstream publishers.
-                You can use the <filename>devtool upgrade</filename>
-                workflow to make sure your recipes you are using for builds
-                are up-to-date with their upstream counterparts.
-                <note>
-                    Several methods exist by which you can upgrade recipes -
-                    <filename>devtool upgrade</filename> happens to be one.
-                    You can read about all the methods by which you can
-                    upgrade recipes in the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#gs-upgrading-recipes'>Upgrading Recipes</ulink>"
-                    section of the Yocto Project Development Tasks Manual.
-                </note>
-            </para>
-
-            <para>
-                The <filename>devtool upgrade</filename> command is flexible
-                enough to allow you to specify source code revision and
-                versioning schemes, extract code into or out of the
-                <filename>devtool</filename>
-                <ulink url='&YOCTO_DOCS_REF_URL;#devtool-the-workspace-layer-structure'>workspace</ulink>,
-                and work with any source file forms that the
-                <ulink url='&YOCTO_DOCS_BB_URL;#bb-fetchers'>fetchers</ulink>
-                support.
-            </para>
-
-            <para>
-                The following diagram shows the common development flow
-                used with the <filename>devtool upgrade</filename> command:
-            </para>
-
-            <para>
-                <imagedata fileref="figures/sdk-devtool-upgrade-flow.png" align="center" />
-            </para>
-
-            <para>
-                <orderedlist>
-                    <listitem><para>
-                        <emphasis>Initiate the Upgrade</emphasis>:
-                        The top part of the flow shows the typical scenario by
-                        which you use the <filename>devtool upgrade</filename>
-                        command.
-                        The following conditions exist:
-                        <itemizedlist>
-                            <listitem><para>
-                                The recipe exists in a local layer external
-                                to the <filename>devtool</filename> workspace.
-                                </para></listitem>
-                            <listitem><para>
-                                The source files for the new release
-                                exist in the same location pointed to by
-                                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                                in the recipe (e.g. a tarball with the new
-                                version number in the name, or as a different
-                                revision in the upstream Git repository).
-                                </para></listitem>
-                        </itemizedlist>
-                        A common situation is where third-party software has
-                        undergone a revision so that it has been upgraded.
-                        The recipe you have access to is likely in your own
-                        layer.
-                        Thus, you need to upgrade the recipe to use the
-                        newer version of the software:
-                        <literallayout class='monospaced'>
-     $ devtool upgrade -V <replaceable>version recipe</replaceable>
-                        </literallayout>
-                        By default, the <filename>devtool upgrade</filename>
-                        command extracts source code into the
-                        <filename>sources</filename> directory in the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#devtool-the-workspace-layer-structure'>workspace</ulink>.
-                        If you want the code extracted to any other location,
-                        you need to provide the
-                        <replaceable>srctree</replaceable> positional argument
-                        with the command as follows:
-                        <literallayout class='monospaced'>
-     $ devtool upgrade -V <replaceable>version recipe srctree</replaceable>
-                        </literallayout>
-                        <note>
-                            In this example, the "-V" option specifies the new
-                            version.
-                            If you don't use "-V", the command upgrades the
-                            recipe to the latest version.
-                        </note>
-                        If the source files pointed to by the
-                        <filename>SRC_URI</filename> statement in the recipe
-                        are in a Git repository, you must provide the "-S"
-                        option and specify a revision for the software.</para>
-
-                        <para>Once <filename>devtool</filename> locates the
-                        recipe, it uses the <filename>SRC_URI</filename>
-                        variable to locate the source code and any local patch
-                        files from other developers.
-                        The result is that the command sets up the source
-                        code, the new version of the recipe, and an append file
-                        all within the workspace.</para>
-
-                        <para>Additionally, if you have any non-patch
-                        local files (i.e. files referred to with
-                        <filename>file://</filename> entries in
-                        <filename>SRC_URI</filename> statement excluding
-                        <filename>*.patch/</filename> or
-                        <filename>*.diff</filename>), these files are
-                        copied to an
-                        <filename>oe-local-files</filename> folder
-                        under the newly created source tree.
-                        Copying the files here gives you a convenient
-                        area from which you can modify the files.
-                        Any changes or additions you make to those
-                        files are incorporated into the build the next
-                        time you build the software just as are other
-                        changes you might have made to the source.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Resolve any Conflicts created by the Upgrade</emphasis>:
-                        Conflicts could exist due to the software being
-                        upgraded to a new version.
-                        Conflicts occur if your recipe specifies some patch
-                        files in <filename>SRC_URI</filename> that conflict
-                        with changes made in the new version of the software.
-                        For such cases, you need to resolve the conflicts
-                        by editing the source and following the normal
-                        <filename>git rebase</filename> conflict resolution
-                        process.</para>
-
-                        <para>Before moving onto the next step, be sure to
-                        resolve any such conflicts created through use of a
-                        newer or different version of the software.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Build the Recipe or Rebuild the Image</emphasis>:
-                        The next step you take depends on what you are going
-                        to do with the new code.</para>
-
-                        <para>If you need to eventually move the build output
-                        to the target hardware, use the following
-                        <filename>devtool</filename> command:
-                        <literallayout class='monospaced'>
-     $ devtool build <replaceable>recipe</replaceable>
-                        </literallayout></para>
-
-                        <para>On the other hand, if you want an image to
-                        contain the recipe's packages from the workspace
-                        for immediate deployment onto a device (e.g. for
-                        testing purposes), you can use
-                        the <filename>devtool build-image</filename> command:
-                        <literallayout class='monospaced'>
-     $ devtool build-image <replaceable>image</replaceable>
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Deploy the Build Output</emphasis>:
-                        When you use the <filename>devtool build</filename>
-                        command or <filename>bitbake</filename> to build
-                        your recipe, you probably want to see if the resulting
-                        build output works as expected on target hardware.
-                        <note>
-                            This step assumes you have a previously built
-                            image that is already either running in QEMU or
-                            running on actual hardware.
-                            Also, it is assumed that for deployment of the
-                            image to the target, SSH is installed in the image
-                            and if the image is running on real hardware that
-                            you have network access to and from your
-                            development machine.
-                        </note>
-                        You can deploy your build output to that target
-                        hardware by using the
-                        <filename>devtool deploy-target</filename> command:
-                        <literallayout class='monospaced'>
-     $ devtool deploy-target <replaceable>recipe target</replaceable>
-                        </literallayout>
-                        The <replaceable>target</replaceable> is a live target
-                        machine running as an SSH server.</para>
-
-                        <para>You can, of course, also deploy the image you
-                        build using the
-                        <filename>devtool build-image</filename> command
-                        to actual hardware.
-                        However, <filename>devtool</filename> does not provide
-                        a specific command that allows you to do this.
-                        </para></listitem>
-                    <listitem><para>
-                        <emphasis>Finish Your Work With the Recipe</emphasis>:
-                        The <filename>devtool finish</filename> command creates
-                        any patches corresponding to commits in the local
-                        Git repository, moves the new recipe to a more
-                        permanent layer, and then resets the recipe so that
-                        the recipe is built normally rather than from the
-                        workspace.</para>
-
-                        <para>Any work you did in the
-                        <filename>oe-local-files</filename> directory is
-                        preserved in the original files next to the recipe
-                        during the <filename>devtool finish</filename>
-                        command.</para>
-
-                        <para>
-                        If you specify a destination layer that is the same as
-                        the original source, then the old version of the
-                        recipe and associated files are removed prior to
-                        adding the new version.
-                        <literallayout class='monospaced'>
-     $ devtool finish <replaceable>recipe layer</replaceable>
-                        </literallayout>
-                        <note>
-                            Any changes you want to turn into patches must be
-                            committed to the Git repository in the source tree.
-                        </note></para>
-
-                        <para>As a final process of the
-                        <filename>devtool finish</filename> command, the state
-                        of the standard layers and the upstream source is
-                        restored so that you can build the recipe from those
-                        areas rather than the workspace.
-                        <note>
-                            You can use the <filename>devtool reset</filename>
-                            command to put things back should you decide you
-                            do not want to proceed with your work.
-                            If you do use this command, realize that the source
-                            tree is preserved.
-                        </note>
-                        </para></listitem>
-                </orderedlist>
-            </para>
-        </section>
-    </section>
-
-    <section id='sdk-a-closer-look-at-devtool-add'>
-        <title>A Closer Look at <filename>devtool add</filename></title>
-
-        <para>
-            The <filename>devtool add</filename> command automatically creates
-            a recipe based on the source tree you provide with the command.
-            Currently, the command has support for the following:
-            <itemizedlist>
-                <listitem><para>
-                    Autotools (<filename>autoconf</filename> and
-                    <filename>automake</filename>)
-                    </para></listitem>
-                <listitem><para>
-                    CMake
-                    </para></listitem>
-                <listitem><para>
-                    Scons
-                    </para></listitem>
-                <listitem><para>
-                    <filename>qmake</filename>
-                    </para></listitem>
-                <listitem><para>
-                    Plain <filename>Makefile</filename>
-                    </para></listitem>
-                <listitem><para>
-                    Out-of-tree kernel module
-                    </para></listitem>
-                <listitem><para>
-                    Binary package (i.e. "-b" option)
-                    </para></listitem>
-                <listitem><para>
-                    Node.js module
-                    </para></listitem>
-                <listitem><para>
-                    Python modules that use <filename>setuptools</filename>
-                    or <filename>distutils</filename>
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            Apart from binary packages, the determination of how a source tree
-            should be treated is automatic based on the files present within
-            that source tree.
-            For example, if a <filename>CMakeLists.txt</filename> file is found,
-            then the source tree is assumed to be using
-            CMake and is treated accordingly.
-            <note>
-                In most cases, you need to edit the automatically generated
-                recipe in order to make it build properly.
-                Typically, you would go through several edit and build cycles
-                until the recipe successfully builds.
-                Once the recipe builds, you could use possible further
-                iterations to test the recipe on the target device.
-            </note>
-        </para>
-
-        <para>
-            The remainder of this section covers specifics regarding how parts
-            of the recipe are generated.
-        </para>
-
-        <section id='sdk-name-and-version'>
-            <title>Name and Version</title>
-
-            <para>
-                If you do not specify a name and version on the command
-                line, <filename>devtool add</filename> uses various metadata
-                within the source tree in an attempt to determine
-                the name and version of the software being built.
-                Based on what the tool determines, <filename>devtool</filename>
-                sets the name of the created recipe file accordingly.
-            </para>
-
-            <para>
-                If <filename>devtool</filename> cannot determine the name and
-                version, the command prints an error.
-                For such cases, you must re-run the command and provide
-                the name and version, just the name, or just the version as
-                part of the command line.
-            </para>
-
-            <para>
-                Sometimes the name or version determined from the source tree
-                might be incorrect.
-                For such a case, you must reset the recipe:
-                <literallayout class='monospaced'>
-     $ devtool reset -n <replaceable>recipename</replaceable>
-                </literallayout>
-                After running the <filename>devtool reset</filename> command,
-                you need to run <filename>devtool add</filename> again and
-                provide the name or the version.
-            </para>
-        </section>
-
-        <section id='sdk-dependency-detection-and-mapping'>
-            <title>Dependency Detection and Mapping</title>
-
-            <para>
-                The <filename>devtool add</filename> command attempts to
-                detect build-time dependencies and map them to other recipes
-                in the system.
-                During this mapping, the command fills in the names of those
-                recipes as part of the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-DEPENDS'><filename>DEPENDS</filename></ulink>
-                variable within the recipe.
-                If a dependency cannot be mapped, <filename>devtool</filename>
-                places a comment in the recipe indicating such.
-                The inability to map a dependency can result from naming not
-                being recognized or because the dependency simply is not
-                available.
-                For cases where the dependency is not available, you must use
-                the <filename>devtool add</filename> command to add an
-                additional recipe that satisfies the dependency.
-                Once you add that recipe, you need to update the
-                <filename>DEPENDS</filename> variable in the original recipe
-                to include the new recipe.
-            </para>
-
-            <para>
-                If you need to add runtime dependencies, you can do so by
-                adding the following to your recipe:
-                <literallayout class='monospaced'>
-     RDEPENDS_${PN} += "<replaceable>dependency1 dependency2 ...</replaceable>"
-                </literallayout>
-                <note>
-                    The <filename>devtool add</filename> command often cannot
-                    distinguish between mandatory and optional dependencies.
-                    Consequently, some of the detected dependencies might
-                    in fact be optional.
-                    When in doubt, consult the documentation or the configure
-                    script for the software the recipe is building for further
-                    details.
-                    In some cases, you might find you can substitute the
-                    dependency with an option that disables the associated
-                    functionality passed to the configure script.
-                </note>
-            </para>
-        </section>
-
-        <section id='sdk-license-detection'>
-            <title>License Detection</title>
-
-            <para>
-                The <filename>devtool add</filename> command attempts to
-                determine if the software you are adding is able to be
-                distributed under a common, open-source license.
-                If so, the command sets the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-LICENSE'><filename>LICENSE</filename></ulink>
-                value accordingly.
-                You should double-check the value added by the command against
-                the documentation or source files for the software you are
-                building and, if necessary, update that
-                <filename>LICENSE</filename> value.
-            </para>
-
-            <para>
-                The <filename>devtool add</filename> command also sets the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-LIC_FILES_CHKSUM'><filename>LIC_FILES_CHKSUM</filename></ulink>
-                value to point to all files that appear to be license-related.
-                Realize that license statements often appear in comments at
-                the top of source files or within the documentation.
-                In such cases, the command does not recognize those license
-                statements.
-                Consequently, you might need to amend the
-                <filename>LIC_FILES_CHKSUM</filename> variable to point to one
-                or more of those comments if present.
-                Setting <filename>LIC_FILES_CHKSUM</filename> is particularly
-                important for third-party software.
-                The mechanism attempts to ensure correct licensing should you
-                upgrade the recipe to a newer upstream version in future.
-                Any change in licensing is detected and you receive an error
-                prompting you to check the license text again.
-            </para>
-
-            <para>
-                If the <filename>devtool add</filename> command cannot
-                determine licensing information, <filename>devtool</filename>
-                sets the <filename>LICENSE</filename> value to "CLOSED" and
-                leaves the <filename>LIC_FILES_CHKSUM</filename> value unset.
-                This behavior allows you to continue with development even
-                though the settings are unlikely to be correct in all cases.
-                You should check the documentation or source files for the
-                software you are building to determine the actual license.
-            </para>
-        </section>
-
-        <section id='sdk-adding-makefile-only-software'>
-            <title>Adding Makefile-Only Software</title>
-
-            <para>
-                The use of Make by itself is very common in both proprietary
-                and open-source software.
-                Unfortunately, Makefiles are often not written with
-                cross-compilation in mind.
-                Thus, <filename>devtool add</filename> often cannot do very
-                much to ensure that these Makefiles build correctly.
-                It is very common, for example, to explicitly call
-                <filename>gcc</filename> instead of using the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-CC'><filename>CC</filename></ulink>
-                variable.
-                Usually, in a cross-compilation environment,
-                <filename>gcc</filename> is the compiler for the build host
-                and the cross-compiler is named something similar to
-                <filename>arm-poky-linux-gnueabi-gcc</filename> and might
-                require arguments (e.g. to point to the associated sysroot
-                for the target machine).
-            </para>
-
-            <para>
-                When writing a recipe for Makefile-only software, keep the
-                following in mind:
-                <itemizedlist>
-                    <listitem><para>
-                        You probably need to patch the Makefile to use
-                        variables instead of hardcoding tools within the
-                        toolchain such as <filename>gcc</filename> and
-                        <filename>g++</filename>.
-                        </para></listitem>
-                    <listitem><para>
-                        The environment in which Make runs is set up with
-                        various standard variables for compilation (e.g.
-                        <filename>CC</filename>, <filename>CXX</filename>, and
-                        so forth) in a similar manner to the environment set
-                        up by the SDK's environment setup script.
-                        One easy way to see these variables is to run the
-                        <filename>devtool build</filename> command on the
-                        recipe and then look in
-                        <filename>oe-logs/run.do_compile</filename>.
-                        Towards the top of this file, a list of environment
-                        variables exists that are being set.
-                        You can take advantage of these variables within the
-                        Makefile.
-                        </para></listitem>
-                    <listitem><para>
-                        If the Makefile sets a default for a variable using "=",
-                        that default overrides the value set in the environment,
-                        which is usually not desirable.
-                        For this case, you can either patch the Makefile
-                        so it sets the default using the "?=" operator, or
-                        you can alternatively force the value on the
-                        <filename>make</filename> command line.
-                        To force the value on the command line, add the
-                        variable setting to
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_OEMAKE'><filename>EXTRA_OEMAKE</filename></ulink>
-                        or
-                        <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGECONFIG_CONFARGS'><filename>PACKAGECONFIG_CONFARGS</filename></ulink>
-                        within the recipe.
-                        Here is an example using <filename>EXTRA_OEMAKE</filename>:
-                        <literallayout class='monospaced'>
-     EXTRA_OEMAKE += "'CC=${CC}' 'CXX=${CXX}'"
-                        </literallayout>
-                        In the above example, single quotes are used around the
-                        variable settings as the values are likely to contain
-                        spaces because required default options are passed to
-                        the compiler.
-                        </para></listitem>
-                    <listitem><para>
-                        Hardcoding paths inside Makefiles is often problematic
-                        in a cross-compilation environment.
-                        This is particularly true because those hardcoded paths
-                        often point to locations on the build host and thus
-                        will either be read-only or will introduce
-                        contamination into the cross-compilation because they
-                        are specific to the build host rather than the target.
-                        Patching the Makefile to use prefix variables or other
-                        path variables is usually the way to handle this
-                        situation.
-                        </para></listitem>
-                    <listitem><para>
-                        Sometimes a Makefile runs target-specific commands such
-                        as <filename>ldconfig</filename>.
-                        For such cases, you might be able to apply patches that
-                        remove these commands from the Makefile.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-
-        <section id='sdk-adding-native-tools'>
-            <title>Adding Native Tools</title>
-
-            <para>
-                Often, you need to build additional tools that run on the
-                <ulink url='&YOCTO_DOCS_REF_URL;#hardware-build-system-term'>build host</ulink>
-                as opposed to the target.
-                You should indicate this requirement by using one of the
-                following methods when you run
-                <filename>devtool add</filename>:
-                <itemizedlist>
-                    <listitem><para>
-                        Specify the name of the recipe such that it ends
-                        with "-native".
-                        Specifying the name like this produces a recipe that
-                        only builds for the build host.
-                        </para></listitem>
-                    <listitem><para>
-                        Specify the "&dash;&dash;also-native" option with the
-                        <filename>devtool add</filename> command.
-                        Specifying this option creates a recipe file that still
-                        builds for the target but also creates a variant with
-                        a "-native" suffix that builds for the build host.
-                        </para></listitem>
-                </itemizedlist>
-                <note>
-                    If you need to add a tool that is shipped as part of a
-                    source tree that builds code for the target, you can
-                    typically accomplish this by building the native and target
-                    parts separately rather than within the same compilation
-                    process.
-                    Realize though that with the "&dash;&dash;also-native"
-                    option, you can add the tool using just one recipe file.
-                </note>
-            </para>
-        </section>
-
-        <section id='sdk-adding-node-js-modules'>
-            <title>Adding Node.js Modules</title>
-
-            <para>
-                You can use the <filename>devtool add</filename> command two
-                different ways to add Node.js modules: 1) Through
-                <filename>npm</filename> and, 2) from a repository or local
-                source.
-            </para>
-
-            <para>
-                Use the following form to add Node.js modules through
-                <filename>npm</filename>:
-                <literallayout class='monospaced'>
-     $ devtool add "npm://registry.npmjs.org;name=forever;version=0.15.1"
-                </literallayout>
-                The name and version parameters are mandatory.
-                Lockdown and shrinkwrap files are generated and pointed to by
-                the recipe in order to freeze the version that is fetched for
-                the dependencies according to the first time.
-                This also saves checksums that are verified on future fetches.
-                Together, these behaviors ensure the reproducibility and
-                integrity of the build.
-                <note><title>Notes</title>
-                    <itemizedlist>
-                        <listitem><para>
-                            You must use quotes around the URL.
-                            The <filename>devtool add</filename> does not require
-                            the quotes, but the shell considers ";" as a splitter
-                            between multiple commands.
-                            Thus, without the quotes,
-                            <filename>devtool add</filename> does not receive the
-                            other parts, which results in several "command not
-                            found" errors.
-                            </para></listitem>
-                        <listitem><para>
-                            In order to support adding Node.js modules, a
-                            <filename>nodejs</filename> recipe must be part
-                            of your SDK.
-                            </para></listitem>
-                    </itemizedlist>
-                </note>
-            </para>
-
-            <para>
-                As mentioned earlier, you can also add Node.js modules
-                directly from a repository or local source tree.
-                To add modules this way, use <filename>devtool add</filename>
-                in the following form:
-                <literallayout class='monospaced'>
-     $ devtool add https://github.com/diversario/node-ssdp
-                </literallayout>
-                In this example, <filename>devtool</filename> fetches the
-                specified Git repository, detects the code as Node.js
-                code, fetches dependencies using <filename>npm</filename>, and
-                sets
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>
-                accordingly.
-            </para>
-        </section>
-    </section>
-
-    <section id='sdk-working-with-recipes'>
-        <title>Working With Recipes</title>
-
-        <para>
-            When building a recipe using the
-            <filename>devtool build</filename> command, the typical build
-            progresses as follows:
-            <orderedlist>
-                <listitem><para>
-                    Fetch the source
-                    </para></listitem>
-                <listitem><para>
-                    Unpack the source
-                    </para></listitem>
-                <listitem><para>
-                    Configure the source
-                    </para></listitem>
-                <listitem><para>
-                    Compile the source
-                    </para></listitem>
-                <listitem><para>
-                    Install the build output
-                    </para></listitem>
-                <listitem><para>
-                    Package the installed output
-                    </para></listitem>
-            </orderedlist>
-            For recipes in the workspace, fetching and unpacking is disabled
-            as the source tree has already been prepared and is persistent.
-            Each of these build steps is defined as a function (task), usually
-            with a "do_" prefix (e.g.
-            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-fetch'><filename>do_fetch</filename></ulink>,
-            <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-unpack'><filename>do_unpack</filename></ulink>,
-            and so forth).
-            These functions are typically shell scripts but can instead be
-            written in Python.
-        </para>
-
-        <para>
-            If you look at the contents of a recipe, you will see that the
-            recipe does not include complete instructions for building the
-            software.
-            Instead, common functionality is encapsulated in classes inherited
-            with the <filename>inherit</filename> directive.
-            This technique leaves the recipe to describe just the things that
-            are specific to the software being built.
-            A
-            <ulink url='&YOCTO_DOCS_REF_URL;#ref-classes-base'><filename>base</filename></ulink>
-            class exists that is implicitly inherited by all recipes and
-            provides the functionality that most recipes typically need.
-        </para>
-
-        <para>
-            The remainder of this section presents information useful when
-            working with recipes.
-        </para>
-
-        <section id='sdk-finding-logs-and-work-files'>
-            <title>Finding Logs and Work Files</title>
-
-            <para>
-                After the first run of the <filename>devtool build</filename>
-                command, recipes that were previously created using the
-                <filename>devtool add</filename> command or whose sources were
-                modified using the <filename>devtool modify</filename>
-                command contain symbolic links created within the source tree:
-                <itemizedlist>
-                    <listitem><para>
-                        <filename>oe-logs</filename>:
-                        This link points to the directory in which log files
-                        and run scripts for each build step are created.
-                        </para></listitem>
-                    <listitem><para>
-                        <filename>oe-workdir</filename>:
-                        This link points to the temporary work area for the
-                        recipe.
-                        The following locations under
-                        <filename>oe-workdir</filename> are particularly
-                        useful:
-                            <itemizedlist>
-                                <listitem><para>
-                                    <filename>image/</filename>:
-                                    Contains all of the files installed during
-                                    the
-                                    <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>
-                                    stage.
-                                    Within a recipe, this directory is referred
-                                    to by the expression
-                                    <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-D'><filename>D</filename></ulink><filename>}</filename>.
-                                    </para></listitem>
-                                <listitem><para>
-                                    <filename>sysroot-destdir/</filename>:
-                                    Contains a subset of files installed within
-                                    <filename>do_install</filename> that have
-                                    been put into the shared sysroot.
-                                    For more information, see the
-                                    "<link linkend='sdk-sharing-files-between-recipes'>Sharing Files Between Recipes</link>"
-                                    section.
-                                    </para></listitem>
-                                <listitem><para>
-                                    <filename>packages-split/</filename>:
-                                    Contains subdirectories for each package
-                                    produced by the recipe.
-                                    For more information, see the
-                                    "<link linkend='sdk-packaging'>Packaging</link>"
-                                    section.
-                                    </para></listitem>
-                            </itemizedlist>
-                        </para></listitem>
-                </itemizedlist>
-                You can use these links to get more information on what is
-                happening at each build step.
-            </para>
-        </section>
-
-        <section id='sdk-setting-configure-arguments'>
-            <title>Setting Configure Arguments</title>
-
-            <para>
-                If the software your recipe is building uses GNU autoconf,
-                then a fixed set of arguments is passed to it to enable
-                cross-compilation plus any extras specified by
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_OECONF'><filename>EXTRA_OECONF</filename></ulink>
-                or
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGECONFIG_CONFARGS'><filename>PACKAGECONFIG_CONFARGS</filename></ulink>
-                set within the recipe.
-                If you wish to pass additional options, add them to
-                <filename>EXTRA_OECONF</filename> or
-                <filename>PACKAGECONFIG_CONFARGS</filename>.
-                Other supported build tools have similar variables
-                (e.g.
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_OECMAKE'><filename>EXTRA_OECMAKE</filename></ulink>
-                for CMake,
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-EXTRA_OESCONS'><filename>EXTRA_OESCONS</filename></ulink>
-                for Scons, and so forth).
-                If you need to pass anything on the <filename>make</filename>
-                command line, you can use <filename>EXTRA_OEMAKE</filename> or the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGECONFIG_CONFARGS'><filename>PACKAGECONFIG_CONFARGS</filename></ulink>
-                variables to do so.
-            </para>
-
-            <para>
-                You can use the <filename>devtool configure-help</filename> command
-                to help you set the arguments listed in the previous paragraph.
-                The command determines the exact options being passed, and shows
-                them to you along with any custom arguments specified through
-                <filename>EXTRA_OECONF</filename> or
-                <filename>PACKAGECONFIG_CONFARGS</filename>.
-                If applicable, the command also shows you the output of the
-                configure script's "&dash;&dash;help" option as a reference.
-            </para>
-        </section>
-
-        <section id='sdk-sharing-files-between-recipes'>
-            <title>Sharing Files Between Recipes</title>
-
-            <para>
-                Recipes often need to use files provided by other recipes on
-                the
-                <ulink url='&YOCTO_DOCS_REF_URL;#hardware-build-system-term'>build host</ulink>.
-                For example, an application linking to a common library needs
-                access to the library itself and its associated headers.
-                The way this access is accomplished within the extensible SDK is
-                through the sysroot.
-                One sysroot exists per "machine" for which the SDK is being
-                built.
-                In practical terms, this means a sysroot exists for the target
-                machine, and a sysroot exists for the build host.
-            </para>
-
-            <para>
-                Recipes should never write files directly into the sysroot.
-                Instead, files should be installed into standard locations
-                during the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>
-                task within the
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-D'><filename>D</filename></ulink><filename>}</filename>
-                directory.
-                A subset of these files automatically goes into the sysroot.
-                The reason for this limitation is that almost all files that go
-                into the sysroot are cataloged in manifests in order to ensure
-                they can be removed later when a recipe is modified or removed.
-                Thus, the sysroot is able to remain free from stale files.
-            </para>
-        </section>
-
-        <section id='sdk-packaging'>
-            <title>Packaging</title>
-
-            <para>
-                Packaging is not always particularly relevant within the
-                extensible SDK.
-                However, if you examine how build output gets into the final image
-                on the target device, it is important to understand packaging
-                because the contents of the image are expressed in terms of
-                packages and not recipes.
-            </para>
-
-            <para>
-                During the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-package'><filename>do_package</filename></ulink>
-                task, files installed during the
-                <ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>
-                task are split into one main package, which is almost always
-                named the same as the recipe, and into several other packages.
-                This separation exists because not all of those installed files
-                are useful in every image.
-                For example, you probably do not need any of the documentation
-                installed in a production image.
-                Consequently, for each recipe the documentation files are
-                separated into a <filename>-doc</filename> package.
-                Recipes that package software containing optional modules or
-                plugins might undergo additional package splitting as well.
-            </para>
-
-            <para>
-                After building a recipe, you can see where files have gone by
-                looking in the <filename>oe-workdir/packages-split</filename>
-                directory, which contains a subdirectory for each package.
-                Apart from some advanced cases, the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGES'><filename>PACKAGES</filename></ulink>
-                and
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-FILES'><filename>FILES</filename></ulink>
-                variables controls splitting.
-                The <filename>PACKAGES</filename> variable lists all of the
-                packages to be produced, while the <filename>FILES</filename>
-                variable specifies which files to include in each package by
-                using an override to specify the package.
-                For example, <filename>FILES_${PN}</filename> specifies the
-                files to go into the main package (i.e. the main package has
-                the same name as the recipe and
-                <filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink><filename>}</filename>
-                evaluates to the recipe name).
-                The order of the <filename>PACKAGES</filename> value is
-                significant.
-                For each installed file, the first package whose
-                <filename>FILES</filename> value matches the file is the
-                package into which the file goes.
-                Defaults exist for both the <filename>PACKAGES</filename> and
-                <filename>FILES</filename> variables.
-                Consequently, you might find you do not even need to set these
-                variables in your recipe unless the software the recipe is
-                building installs files into non-standard locations.
-            </para>
-        </section>
-    </section>
-
-    <section id='sdk-restoring-the-target-device-to-its-original-state'>
-        <title>Restoring the Target Device to its Original State</title>
-
-        <para>
-            If you use the <filename>devtool deploy-target</filename>
-            command to write a recipe's build output to the target, and
-            you are working on an existing component of the system, then you
-            might find yourself in a situation where you need to restore the
-            original files that existed prior to running the
-            <filename>devtool deploy-target</filename> command.
-            Because the <filename>devtool deploy-target</filename> command
-            backs up any files it overwrites, you can use the
-            <filename>devtool undeploy-target</filename> command to restore
-            those files and remove any other files the recipe deployed.
-            Consider the following example:
-            <literallayout class='monospaced'>
-     $ devtool undeploy-target lighttpd root@192.168.7.2
-            </literallayout>
-            If you have deployed multiple applications, you can remove them
-            all using the "-a" option thus restoring the target device to its
-            original state:
-            <literallayout class='monospaced'>
-     $ devtool undeploy-target -a root@192.168.7.2
-            </literallayout>
-            Information about files deployed to the target as well as any
-            backed up files are stored on the target itself.
-            This storage, of course, requires some additional space
-            on the target machine.
-            <note>
-                The <filename>devtool deploy-target</filename> and
-                <filename>devtool undeploy-target</filename> commands do not
-                currently interact with any package management system on the
-                target device (e.g. RPM or OPKG).
-                Consequently, you should not intermingle
-                <filename>devtool deploy-target</filename> and package
-                manager operations on the target device.
-                Doing so could result in a conflicting set of files.
-            </note>
-        </para>
-    </section>
-
-    <section id='sdk-installing-additional-items-into-the-extensible-sdk'>
-        <title>Installing Additional Items Into the Extensible SDK</title>
-
-        <para>
-            Out of the box the extensible SDK typically only comes with a small
-            number of tools and libraries.
-            A minimal SDK starts mostly empty and is populated on-demand.
-            Sometimes you must explicitly install extra items into the SDK.
-            If you need these extra items, you can first search for the items
-            using the <filename>devtool search</filename> command.
-            For example, suppose you need to link to libGL but you are not sure
-            which recipe provides libGL.
-            You can use the following command to find out:
-            <literallayout class='monospaced'>
-     $ devtool search libGL
-     mesa                  A free implementation of the OpenGL API
-            </literallayout>
-            Once you know the recipe (i.e. <filename>mesa</filename> in this
-            example), you can install it:
-            <literallayout class='monospaced'>
-     $ devtool sdk-install mesa
-            </literallayout>
-            By default, the <filename>devtool sdk-install</filename> command
-            assumes the item is available in pre-built form from your SDK
-            provider.
-            If the item is not available and it is acceptable to build the item
-            from source, you can add the "-s" option as follows:
-            <literallayout class='monospaced'>
-     $ devtool sdk-install -s mesa
-            </literallayout>
-            It is important to remember that building the item from source
-            takes significantly longer than installing the pre-built artifact.
-            Also, if no recipe exists for the item you want to add to the SDK,
-            you must instead add the item using the
-            <filename>devtool add</filename> command.
-        </para>
-    </section>
-
-    <section id='sdk-applying-updates-to-an-installed-extensible-sdk'>
-        <title>Applying Updates to an Installed Extensible SDK</title>
-
-        <para>
-            If you are working with an installed extensible SDK that gets
-            occasionally updated (e.g. a third-party SDK), then you will need
-            to manually "pull down" the updates into the installed SDK.
-        </para>
-
-        <para>
-            To update your installed SDK, use <filename>devtool</filename> as
-            follows:
-            <literallayout class='monospaced'>
-     $ devtool sdk-update
-            </literallayout>
-            The previous command assumes your SDK provider has set the default
-            update URL for you through the
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_UPDATE_URL'><filename>SDK_UPDATE_URL</filename></ulink>
-            variable as described in the
-            "<link linkend='sdk-providing-updates-to-the-extensible-sdk-after-installation'>Providing Updates to the Extensible SDK After Installation</link>"
-            section.
-            If the SDK provider has not set that default URL, you need to
-            specify it yourself in the command as follows:
-            <literallayout class='monospaced'>
-     $ devtool sdk-update <replaceable>path_to_update_directory</replaceable>
-            </literallayout>
-            <note>
-                The URL needs to point specifically to a published SDK and
-                not to an SDK installer that you would download and install.
-            </note>
-        </para>
-    </section>
-
-    <section id='sdk-creating-a-derivative-sdk-with-additional-components'>
-        <title>Creating a Derivative SDK With Additional Components</title>
-
-        <para>
-            You might need to produce an SDK that contains your own custom
-            libraries.
-            A good example would be if you were a vendor with customers that
-            use your SDK to build their own platform-specific software and
-            those customers need an SDK that has custom libraries.
-            In such a case, you can produce a derivative SDK based on the
-            currently installed SDK fairly easily by following these steps:
-            <orderedlist>
-                <listitem><para>
-                    If necessary, install an extensible SDK that
-                    you want to use as a base for your derivative SDK.
-                    </para></listitem>
-                <listitem><para>
-                    Source the environment script for the SDK.
-                    </para></listitem>
-                <listitem><para>
-                    Add the extra libraries or other components you want by
-                    using the <filename>devtool add</filename> command.
-                    </para></listitem>
-                <listitem><para>
-                    Run the <filename>devtool build-sdk</filename> command.
-                    </para></listitem>
-            </orderedlist>
-            The previous steps take the recipes added to the workspace and
-            construct a new SDK installer that contains those recipes and the
-            resulting binary artifacts.
-            The recipes go into their own separate layer in the constructed
-            derivative SDK, which leaves the workspace clean and ready for
-            users to add their own recipes.
-        </para>
-    </section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/sdk-manual/sdk-intro.rst b/poky/documentation/sdk-manual/sdk-intro.rst
index 82b7bcf..5a346fa 100644
--- a/poky/documentation/sdk-manual/sdk-intro.rst
+++ b/poky/documentation/sdk-manual/sdk-intro.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ************
 Introduction
diff --git a/poky/documentation/sdk-manual/sdk-intro.xml b/poky/documentation/sdk-manual/sdk-intro.xml
deleted file mode 100644
index f42670e..0000000
--- a/poky/documentation/sdk-manual/sdk-intro.xml
+++ /dev/null
@@ -1,353 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='sdk-intro'>
-<title>Introduction</title>
-
-<section id='sdk-manual-intro'>
-    <title>Introduction</title>
-
-    <para>
-        Welcome to the Yocto Project Application Development and the
-        Extensible Software Development Kit (eSDK) manual.
-        This manual provides information that explains how to use both the
-        Yocto Project extensible and standard SDKs to develop
-        applications and images.
-        <note>
-            Prior to the 2.0 Release of the Yocto Project, application
-            development was primarily accomplished through the use of the
-            Application Development Toolkit (ADT) and the availability
-            of stand-alone cross-development toolchains and other tools.
-            With the 2.1 Release of the Yocto Project, application development
-            has transitioned to within a tool-rich extensible SDK and the more
-            traditional standard SDK.
-        </note>
-    </para>
-
-    <para>
-        All SDKs consist of the following:
-        <itemizedlist>
-            <listitem><para>
-                <emphasis>Cross-Development Toolchain</emphasis>:
-                This toolchain contains a compiler, debugger, and various
-                miscellaneous tools.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Libraries, Headers, and Symbols</emphasis>:
-                The libraries, headers, and symbols are specific to the image
-                (i.e. they match the image).
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Environment Setup Script</emphasis>:
-                This <filename>*.sh</filename> file, once run, sets up the
-                cross-development environment by defining variables and
-                preparing for SDK use.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        Additionally, an extensible SDK has tools that allow you to easily add
-        new applications and libraries to an image, modify the source of an
-        existing component, test changes on the target hardware, and easily
-        integrate an application into the
-        <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>.
-    </para>
-
-    <para>
-        You can use an SDK to independently develop and test code
-        that is destined to run on some target machine.
-        SDKs are completely self-contained.
-        The binaries are linked against their own copy of
-        <filename>libc</filename>, which results in no dependencies
-        on the target system.
-        To achieve this, the pointer to the dynamic loader is
-        configured at install time since that path cannot be dynamically
-        altered.
-        This is the reason for a wrapper around the
-        <filename>populate_sdk</filename> and
-        <filename>populate_sdk_ext</filename> archives.
-    </para>
-
-    <para>
-        Another feature for the SDKs is that only one set of cross-compiler
-        toolchain binaries are produced for any given architecture.
-        This feature takes advantage of the fact that the target hardware can
-        be passed to <filename>gcc</filename> as a set of compiler options.
-        Those options are set up by the environment script and contained in
-        variables such as
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-CC'><filename>CC</filename></ulink>
-        and
-        <ulink url='&YOCTO_DOCS_REF_URL;#var-LD'><filename>LD</filename></ulink>.
-        This reduces the space needed for the tools.
-        Understand, however, that every target still needs a sysroot because
-        those binaries are target-specific.
-    </para>
-
-    <para>
-        The SDK development environment consists of the following:
-        <itemizedlist>
-            <listitem><para>
-                The self-contained SDK, which is an
-                architecture-specific cross-toolchain and
-                matching sysroots (target and native) all built by the
-                OpenEmbedded build system (e.g. the SDK).
-                The toolchain and sysroots are based on a
-                <ulink url='&YOCTO_DOCS_REF_URL;#metadata'>Metadata</ulink>
-                configuration and extensions,
-                which allows you to cross-develop on the host machine for the
-                target hardware.
-                Additionally, the extensible SDK contains the
-                <filename>devtool</filename> functionality.
-                </para></listitem>
-            <listitem><para>
-                The Quick EMUlator (QEMU), which lets you simulate
-                target hardware.
-                QEMU is not literally part of the SDK.
-                You must build and include this emulator separately.
-                However, QEMU plays an important role in the development
-                process that revolves around use of the SDK.
-                </para></listitem>
-        </itemizedlist>
-    </para>
-
-    <para>
-        In summary, the extensible and standard SDK share many features.
-        However, the extensible SDK has powerful development tools to help you
-        more quickly develop applications.
-        Following is a table that summarizes the primary differences between
-        the standard and extensible SDK types when considering which to
-        build:
-        <informaltable frame='none'>
-            <tgroup cols='3' align='left' colsep='1' rowsep='1'>
-                <colspec colname='c1' colwidth='1*'/>
-                <colspec colname='c2' colwidth='1*'/>
-                <colspec colname='c3' colwidth='1*'/>
-                <thead>
-                    <row>
-                        <entry align="left"><emphasis>Feature</emphasis></entry>
-                        <entry align="left"><emphasis>Standard SDK</emphasis></entry>
-                        <entry align="left"><emphasis>Extensible SDK</emphasis></entry>
-                    </row>
-                </thead>
-                <tbody>
-                    <row>
-                        <entry align="left">Toolchain</entry>
-                        <entry align="left">Yes</entry>
-                        <entry align="left">Yes*</entry>
-                    </row>
-                    <row>
-                        <entry align="left">Debugger</entry>
-                        <entry align="left">Yes</entry>
-                        <entry align="left">Yes*</entry>
-                    </row>
-                    <row>
-                        <entry align="left">Size</entry>
-                        <entry align="left">100+ MBytes</entry>
-                        <entry align="left">1+ GBytes (or 300+ MBytes for minimal w/toolchain)</entry>
-                    </row>
-                    <row>
-                        <entry align="left"><filename>devtool</filename></entry>
-                        <entry align="left">No</entry>
-                        <entry align="left">Yes</entry>
-                    </row>
-                    <row>
-                        <entry align="left">Build Images</entry>
-                        <entry align="left">No</entry>
-                        <entry align="left">Yes</entry>
-                    </row>
-                    <row>
-                        <entry align="left">Updateable</entry>
-                        <entry align="left">No</entry>
-                        <entry align="left">Yes</entry>
-                    </row>
-                    <row>
-                        <entry align="left">Managed Sysroot**</entry>
-                        <entry align="left">No</entry>
-                        <entry align="left">Yes</entry>
-                    </row>
-                    <row>
-                        <entry align="left">Installed Packages</entry>
-                        <entry align="left">No***</entry>
-                        <entry align="left">Yes****</entry>
-                    </row>
-                    <row>
-                        <entry align="left">Construction</entry>
-                        <entry align="left">Packages</entry>
-                        <entry align="left">Shared State</entry>
-                    </row>
-                </tbody>
-            </tgroup>
-        </informaltable>
-        <literallayout class='monospaced'>
-     * Extensible SDK contains the toolchain and debugger if <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_EXT_TYPE'><filename>SDK_EXT_TYPE</filename></ulink> is "full" or <ulink url='&YOCTO_DOCS_REF_URL;#var-SDK_INCLUDE_TOOLCHAIN'><filename>SDK_INCLUDE_TOOLCHAIN</filename></ulink> is "1", which is the default.
-
-     ** Sysroot is managed through the use of <filename>devtool</filename>.  Thus, it is less likely that you will corrupt your SDK sysroot when you try to add additional libraries.
-
-     *** You can add runtime package management to the standard SDK but it is not supported by default.
-
-     **** You must build and make the shared state available to extensible SDK users for "packages" you want to enable users to install.
-        </literallayout>
-    </para>
-
-    <section id='the-cross-development-toolchain'>
-        <title>The Cross-Development Toolchain</title>
-
-        <para>
-            The
-            <ulink url='&YOCTO_DOCS_REF_URL;#cross-development-toolchain'>Cross-Development Toolchain</ulink>
-            consists of a cross-compiler, cross-linker, and cross-debugger
-            that are used to develop user-space applications for targeted
-            hardware.
-            Additionally, for an extensible SDK, the toolchain also has
-            built-in <filename>devtool</filename> functionality.
-            This toolchain is created by running a SDK installer script
-            or through a
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
-            that is based on your metadata configuration or extension for
-            your targeted device.
-            The cross-toolchain works with a matching target sysroot.
-        </para>
-    </section>
-
-    <section id='sysroot'>
-        <title>Sysroots</title>
-
-        <para>
-            The native and target sysroots contain needed headers and libraries
-            for generating binaries that run on the target architecture.
-            The target sysroot is based on the target root filesystem image
-            that is built by the OpenEmbedded build system and uses the same
-            metadata configuration used to build the cross-toolchain.
-        </para>
-    </section>
-
-    <section id='the-qemu-emulator'>
-        <title>The QEMU Emulator</title>
-
-        <para>
-            The QEMU emulator allows you to simulate your hardware while
-            running your application or image.
-            QEMU is not part of the SDK but is made available a number of
-            different ways:
-            <itemizedlist>
-                <listitem><para>
-                    If you have cloned the <filename>poky</filename> Git
-                    repository to create a
-                    <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-                    and you have sourced the environment setup script, QEMU is
-                    installed and automatically available.
-                    </para></listitem>
-                <listitem><para>
-                    If you have downloaded a Yocto Project release and unpacked
-                    it to create a Source Directory and you have sourced the
-                    environment setup script, QEMU is installed and
-                    automatically available.
-                    </para></listitem>
-                <listitem><para>
-                    If you have installed the cross-toolchain tarball and you
-                    have sourced the toolchain's setup environment script, QEMU
-                    is also installed and automatically available.
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-    </section>
-</section>
-
-<section id='sdk-development-model'>
-    <title>SDK Development Model</title>
-
-    <para>
-        Fundamentally, the SDK fits into the development process as follows:
-        <imagedata fileref="figures/sdk-environment.png" align="center" width="6in" depth="5in" scalefit="100" />
-        The SDK is installed on any machine and can be used to develop
-        applications, images, and kernels.
-        An SDK can even be used by a QA Engineer or Release Engineer.
-        The fundamental concept is that the machine that has the SDK installed
-        does not have to be associated with the machine that has the
-        Yocto Project installed.
-        A developer can independently compile and test an object on their
-        machine and then, when the object is ready for integration into an
-        image, they can simply make it available to the machine that has the
-        Yocto Project.
-        Once the object is available, the image can be rebuilt using the
-        Yocto Project to produce the modified image.
-    </para>
-
-    <para>
-        You just need to follow these general steps:
-        <orderedlist>
-            <listitem><para>
-                <emphasis>Install the SDK for your target hardware:</emphasis>
-                For information on how to install the SDK, see the
-                "<link linkend='sdk-installing-the-sdk'>Installing the SDK</link>"
-                section.
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Download or Build the Target Image:</emphasis>
-                The Yocto Project supports several target architectures
-                and has many pre-built kernel images and root filesystem
-                images.</para>
-
-                <para>If you are going to develop your application on
-                hardware, go to the
-                <ulink url='&YOCTO_MACHINES_DL_URL;'><filename>machines</filename></ulink>
-                download area and choose a target machine area
-                from which to download the kernel image and root filesystem.
-                This download area could have several files in it that
-                support development using actual hardware.
-                For example, the area might contain
-                <filename>.hddimg</filename> files that combine the
-                kernel image with the filesystem, boot loaders, and
-                so forth.
-                Be sure to get the files you need for your particular
-                development process.</para>
-
-                <para>If you are going to develop your application and
-                then run and test it using the QEMU emulator, go to the
-                <ulink url='&YOCTO_QEMU_DL_URL;'><filename>machines/qemu</filename></ulink>
-                download area.
-                From this area, go down into the directory for your
-                target architecture (e.g. <filename>qemux86_64</filename>
-                for an <trademark class='registered'>Intel</trademark>-based
-                64-bit architecture).
-                Download the kernel, root filesystem, and any other files you
-                need for your process.
-                <note>
-                    To use the root filesystem in QEMU, you need to extract it.
-                    See the
-                    "<link linkend='sdk-extracting-the-root-filesystem'>Extracting the Root Filesystem</link>"
-                    section for information on how to extract the root
-                    filesystem.
-                </note>
-                </para></listitem>
-            <listitem><para>
-                <emphasis>Develop and Test your Application:</emphasis>
-                At this point, you have the tools to develop your application.
-                If you need to separately install and use the QEMU emulator,
-                you can go to
-                <ulink url='http://wiki.qemu.org/Main_Page'>QEMU Home Page</ulink>
-                to download and learn about the emulator.
-                See the
-                "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-manual-qemu'>Using the Quick EMUlator (QEMU)</ulink>"
-                chapter in the Yocto Project Development Tasks Manual
-                for information on using QEMU within the Yocto
-                Project.
-                </para></listitem>
-        </orderedlist>
-    </para>
-
-    <para>
-        The remainder of this manual describes how to use the extensible
-        and standard SDKs.
-        Information also exists in appendix form that describes how you can
-        build, install, and modify an SDK.
-    </para>
-</section>
-
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/sdk-manual/sdk-manual-customization.xsl b/poky/documentation/sdk-manual/sdk-manual-customization.xsl
deleted file mode 100644
index 4f8816f..0000000
--- a/poky/documentation/sdk-manual/sdk-manual-customization.xsl
+++ /dev/null
@@ -1,28 +0,0 @@
-<?xml version='1.0'?>
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-
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
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-  <xsl:import href="http://downloads.yoctoproject.org/mirror/docbook-mirror/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
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-  <xsl:import href="../template/1.76.1/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
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-  <xsl:param name="chapter.autolabel" select="1" />
-  <xsl:param name="appendix.autolabel">A</xsl:param>
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diff --git a/poky/documentation/sdk-manual/sdk-manual.rst b/poky/documentation/sdk-manual/sdk-manual.rst
index d7776b7..177826e 100644
--- a/poky/documentation/sdk-manual/sdk-manual.rst
+++ b/poky/documentation/sdk-manual/sdk-manual.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ========================================================================================
 Yocto Project Application Development and the Extensible Software Development Kit (eSDK)
diff --git a/poky/documentation/sdk-manual/sdk-manual.xml b/poky/documentation/sdk-manual/sdk-manual.xml
deleted file mode 100755
index 6344478..0000000
--- a/poky/documentation/sdk-manual/sdk-manual.xml
+++ /dev/null
@@ -1,159 +0,0 @@
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-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
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-
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-      xmlns:xi="http://www.w3.org/2003/XInclude"
-      xmlns="http://docbook.org/ns/docbook"
-      >
-    <bookinfo>
-
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-            <imageobject>
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-                    format='SVG'
-                    align='left' scalefit='1' width='100%'/>
-            </imageobject>
-        </mediaobject>
-
-        <title>
-            Yocto Project Application Development and the Extensible Software Development Kit (eSDK)
-        </title>
-
-        <authorgroup>
-            <author>
-                <affiliation>
-                    <orgname>&ORGNAME;</orgname>
-                </affiliation>
-                <email>&ORGEMAIL;</email>
-            </author>
-        </authorgroup>
-
-        <revhistory>
-            <revision>
-                <revnumber>2.1</revnumber>
-                <date>April 2016</date>
-                <revremark>The initial document released with the Yocto Project 2.1 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.2</revnumber>
-                <date>October 2016</date>
-                <revremark>Released with the Yocto Project 2.2 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.3</revnumber>
-                <date>May 2017</date>
-                <revremark>Released with the Yocto Project 2.3 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.4</revnumber>
-                <date>October 2017</date>
-                <revremark>Released with the Yocto Project 2.4 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.5</revnumber>
-                <date>May 2018</date>
-                <revremark>Released with the Yocto Project 2.5 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.6</revnumber>
-                <date>November 2018</date>
-                <revremark>Released with the Yocto Project 2.6 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.7</revnumber>
-                <date>May 2019</date>
-                <revremark>Released with the Yocto Project 2.7 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>3.0</revnumber>
-                <date>October 2019</date>
-                <revremark>Released with the Yocto Project 3.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>3.1</revnumber>
-                <date>&REL_MONTH_YEAR;</date>
-                <revremark>Released with the Yocto Project 3.1 Release.</revremark>
-            </revision>
-       </revhistory>
-
-    <copyright>
-      <year>&COPYRIGHT_YEAR;</year>
-      <holder>Linux Foundation</holder>
-    </copyright>
-
-    <legalnotice>
-      <para>
-        Permission is granted to copy, distribute and/or modify this document under
-        the terms of the <ulink type="http" url="http://creativecommons.org/licenses/by-sa/2.0/uk/">Creative Commons Attribution-Share Alike 2.0 UK: England &amp; Wales</ulink> as published by Creative Commons.
-      </para>
-           <note><title>Manual Notes</title>
-               <itemizedlist>
-                   <listitem><para>
-                       This version of the
-                       <emphasis>Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</emphasis>
-                       manual is for the &YOCTO_DOC_VERSION; release of the
-                       Yocto Project.
-                       To be sure you have the latest version of the manual
-                       for this release, go to the
-                       <ulink url='&YOCTO_DOCS_URL;'>Yocto Project documentation page</ulink>
-                       and select the manual from that site.
-                       Manuals from the site are more up-to-date than manuals
-                       derived from the Yocto Project released TAR files.
-                       </para></listitem>
-                   <listitem><para>
-                       If you located this manual through a web search, the
-                       version of the manual might not be the one you want
-                       (e.g. the search might have returned a manual much
-                       older than the Yocto Project version with which you
-                       are working).
-                       You can see all Yocto Project major releases by
-                       visiting the
-                       <ulink url='&YOCTO_WIKI_URL;/wiki/Releases'>Releases</ulink>
-                       page.
-                       If you need a version of this manual for a different
-                       Yocto Project release, visit the
-                       <ulink url='&YOCTO_DOCS_URL;'>Yocto Project documentation page</ulink>
-                       and select the manual set by using the
-                       "ACTIVE RELEASES DOCUMENTATION" or "DOCUMENTS ARCHIVE"
-                       pull-down menus.
-                       </para></listitem>
-                   <listitem>
-                       <para>
-                       To report any inaccuracies or problems with this
-                       (or any other Yocto Project) manual, send an email to
-                       the Yocto Project documentation mailing list at
-                       <filename>docs@lists.yoctoproject.org</filename> or
-                       log into the freenode <filename>#yocto</filename> channel.
-                       </para>
-                   </listitem>
-               </itemizedlist>
-           </note>
-    </legalnotice>
-
-    </bookinfo>
-
-    <xi:include href="sdk-intro.xml"/>
-
-    <xi:include href="sdk-extensible.xml"/>
-
-    <xi:include href="sdk-using.xml"/>
-
-    <xi:include href="sdk-working-projects.xml"/>
-
-    <xi:include href="sdk-appendix-obtain.xml"/>
-
-    <xi:include href="sdk-appendix-customizing.xml"/>
-
-    <xi:include href="sdk-appendix-customizing-standard.xml"/>
-
-<!--    <index id='index'>
-      <title>Index</title>
-    </index>
--->
-
-</book>
-<!--
-vim: expandtab tw=80 ts=4
--->
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deleted file mode 100644
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diff --git a/poky/documentation/sdk-manual/sdk-using.rst b/poky/documentation/sdk-manual/sdk-using.rst
index 09a194c..4b151e4 100644
--- a/poky/documentation/sdk-manual/sdk-using.rst
+++ b/poky/documentation/sdk-manual/sdk-using.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 **********************
 Using the Standard SDK
diff --git a/poky/documentation/sdk-manual/sdk-using.xml b/poky/documentation/sdk-manual/sdk-using.xml
deleted file mode 100644
index 28ee50d..0000000
--- a/poky/documentation/sdk-manual/sdk-using.xml
+++ /dev/null
@@ -1,201 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='sdk-using-the-standard-sdk'>
-    <title>Using the Standard SDK</title>
-
-    <para>
-        This chapter describes the standard SDK and how to install it.
-        Information includes unique installation and setup aspects for the
-        standard SDK.
-        <note>
-            For a side-by-side comparison of main features supported for a
-            standard SDK as compared to an extensible SDK, see the
-            "<link linkend='sdk-manual-intro'>Introduction</link>"
-            section.
-        </note>
-    </para>
-
-    <para>
-        You can use a standard SDK to work on Makefile and Autotools-based
-        projects.
-        See the
-        "<link linkend='sdk-working-projects'>Using the SDK Toolchain Directly</link>"
-        chapter for more information.
-    </para>
-
-    <section id='sdk-standard-sdk-intro'>
-        <title>Why use the Standard SDK and What is in It?</title>
-
-        <para>
-            The Standard SDK provides a cross-development toolchain and
-            libraries tailored to the contents of a specific image.
-            You would use the Standard SDK if you want a more traditional
-            toolchain experience as compared to the extensible SDK, which
-            provides an internal build system and the
-            <filename>devtool</filename> functionality.
-        </para>
-
-        <para>
-            The installed Standard SDK consists of several files and
-            directories.
-            Basically, it contains an SDK environment setup script, some
-            configuration files, and host and target root filesystems to
-            support usage.
-            You can see the directory structure in the
-            "<link linkend='sdk-installed-standard-sdk-directory-structure'>Installed Standard SDK Directory Structure</link>"
-            section.
-        </para>
-    </section>
-
-    <section id='sdk-installing-the-sdk'>
-        <title>Installing the SDK</title>
-
-        <para>
-            The first thing you need to do is install the SDK on your
-            <ulink url='&YOCTO_DOCS_REF_URL;#hardware-build-system-term'>Build Host</ulink>
-            by running the <filename>*.sh</filename> installation script.
-        </para>
-
-        <para>
-            You can download a tarball installer, which includes the
-            pre-built toolchain, the <filename>runqemu</filename>
-            script, and support files from the appropriate
-            <ulink url='&YOCTO_TOOLCHAIN_DL_URL;'>toolchain</ulink>
-            directory within the Index of Releases.
-            Toolchains are available for several 32-bit and 64-bit
-            architectures with the <filename>x86_64</filename> directories,
-            respectively.
-            The toolchains the Yocto Project provides are based off the
-            <filename>core-image-sato</filename> and
-            <filename>core-image-minimal</filename> images and contain
-            libraries appropriate for developing against that image.
-        </para>
-
-        <para>
-            The names of the tarball installer scripts are such that a
-            string representing the host system appears first in the
-            filename and then is immediately followed by a string
-            representing the target architecture.
-            <literallayout class='monospaced'>
-     poky-glibc-<replaceable>host_system</replaceable>-<replaceable>image_type</replaceable>-<replaceable>arch</replaceable>-toolchain-<replaceable>release_version</replaceable>.sh
-
-     Where:
-         <replaceable>host_system</replaceable> is a string representing your development system:
-
-                    i686 or x86_64.
-
-         <replaceable>image_type</replaceable> is the image for which the SDK was built:
-
-                    core-image-minimal or core-image-sato.
-
-         <replaceable>arch</replaceable> is a string representing the tuned target architecture:
-
-                    aarch64, armv5e, core2-64, i586, mips32r2, mips64, ppc7400, or cortexa8hf-neon.
-
-         <replaceable>release_version</replaceable> is a string representing the release number of the Yocto Project:
-
-                    &DISTRO;, &DISTRO;+snapshot
-            </literallayout>
-            For example, the following SDK installer is for a 64-bit
-            development host system and a i586-tuned target architecture
-            based off the SDK for <filename>core-image-sato</filename> and
-            using the current &DISTRO; snapshot:
-            <literallayout class='monospaced'>
-     poky-glibc-x86_64-core-image-sato-i586-toolchain-&DISTRO;.sh
-            </literallayout>
-            <note>
-                As an alternative to downloading an SDK, you can build the
-                SDK installer.
-                For information on building the installer, see the
-                "<link linkend='sdk-building-an-sdk-installer'>Building an SDK Installer</link>"
-                section.
-            </note>
-        </para>
-
-        <para>
-            The SDK and toolchains are self-contained and by default are
-            installed into the <filename>poky_sdk</filename> folder in your
-            home directory.
-            You can choose to install the extensible SDK in any location when
-            you run the installer.
-            However, because files need to be written under that directory
-            during the normal course of operation, the location you choose
-            for installation must be writable for whichever
-            users need to use the SDK.
-        </para>
-
-        <para>
-            The following command shows how to run the installer given a
-            toolchain tarball for a 64-bit x86 development host system and
-            a 64-bit x86 target architecture.
-            The example assumes the SDK installer is located in
-            <filename>~/Downloads/</filename> and has execution rights.
-            <note>
-                If you do not have write permissions for the directory
-                into which you are installing the SDK, the installer
-                notifies you and exits.
-                For that case, set up the proper permissions in the directory
-                and run the installer again.
-            </note>
-            <literallayout class='monospaced'>
-     $ ./Downloads/poky-glibc-x86_64-core-image-sato-i586-toolchain-&DISTRO;.sh
-     Poky (Yocto Project Reference Distro) SDK installer version &DISTRO;
-     ===============================================================
-     Enter target directory for SDK (default: /opt/poky/&DISTRO;):
-     You are about to install the SDK to "/opt/poky/&DISTRO;". Proceed [Y/n]? Y
-     Extracting SDK........................................ ..............................done
-     Setting it up...done
-     SDK has been successfully set up and is ready to be used.
-     Each time you wish to use the SDK in a new shell session, you need to source the environment setup script e.g.
-      $ . /opt/poky/&DISTRO;/environment-setup-i586-poky-linux
-            </literallayout>
-        </para>
-
-        <para>
-            Again, reference the
-            "<link linkend='sdk-installed-standard-sdk-directory-structure'>Installed Standard SDK Directory Structure</link>"
-            section for more details on the resulting directory structure of
-            the installed SDK.
-        </para>
-    </section>
-
-    <section id='sdk-running-the-sdk-environment-setup-script'>
-        <title>Running the SDK Environment Setup Script</title>
-
-        <para>
-            Once you have the SDK installed, you must run the SDK environment
-            setup script before you can actually use the SDK.
-            This setup script resides in the directory you chose when you
-            installed the SDK, which is either the default
-            <filename>/opt/poky/&DISTRO;</filename> directory or the directory
-            you chose during installation.
-        </para>
-
-        <para>
-            Before running the script, be sure it is the one that matches the
-            architecture for which you are developing.
-            Environment setup scripts begin with the string
-            "<filename>environment-setup</filename>" and include as part of
-            their name the tuned target architecture.
-            As an example, the following commands set the working directory
-            to where the SDK was installed and then source the environment
-            setup script.
-            In this example, the setup script is for an IA-based
-            target machine using i586 tuning:
-            <literallayout class='monospaced'>
-     $ source /opt/poky/&DISTRO;/environment-setup-i586-poky-linux
-            </literallayout>
-            When you run the setup script, the same environment variables are
-            defined as are when you run the setup script for an extensible SDK.
-            See the
-            "<link linkend='sdk-running-the-extensible-sdk-environment-setup-script'>Running the Extensible SDK Environment Setup Script</link>"
-            section for more information.
-        </para>
-    </section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/sdk-manual/sdk-working-projects.rst b/poky/documentation/sdk-manual/sdk-working-projects.rst
index 2c20a1e..5c828fd 100644
--- a/poky/documentation/sdk-manual/sdk-working-projects.rst
+++ b/poky/documentation/sdk-manual/sdk-working-projects.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ********************************
 Using the SDK Toolchain Directly
diff --git a/poky/documentation/sdk-manual/sdk-working-projects.xml b/poky/documentation/sdk-manual/sdk-working-projects.xml
deleted file mode 100644
index 070d903..0000000
--- a/poky/documentation/sdk-manual/sdk-working-projects.xml
+++ /dev/null
@@ -1,511 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='sdk-working-projects'>
-
-    <title>Using the SDK Toolchain Directly</title>
-
-    <para>
-        You can use the SDK toolchain directly with Makefile and
-        Autotools-based projects.
-    </para>
-
-    <section id='autotools-based-projects'>
-        <title>Autotools-Based Projects</title>
-
-        <para>
-            Once you have a suitable
-            <ulink url='&YOCTO_DOCS_REF_URL;#cross-development-toolchain'>cross-development toolchain</ulink>
-            installed, it is very easy to develop a project using the
-            <ulink url='https://en.wikipedia.org/wiki/GNU_Build_System'>GNU Autotools-based</ulink>
-            workflow, which is outside of the
-            <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>.
-        </para>
-
-        <para>
-            The following figure presents a simple Autotools workflow.
-            <imagedata fileref="figures/sdk-autotools-flow.png" width="7in" height="8in" align="center" />
-        </para>
-
-        <para>
-            Follow these steps to create a simple Autotools-based
-            "Hello World" project:
-            <note>
-                For more information on the GNU Autotools workflow,
-                see the same example on the
-                <ulink url='https://developer.gnome.org/anjuta-build-tutorial/stable/create-autotools.html.en'>GNOME Developer</ulink>
-                site.
-            </note>
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Create a Working Directory and Populate It:</emphasis>
-                    Create a clean directory for your project and then make
-                    that directory your working location.
-                    <literallayout class='monospaced'>
-     $ mkdir $HOME/helloworld
-     $ cd $HOME/helloworld
-                    </literallayout>
-                    After setting up the directory, populate it with files
-                    needed for the flow.
-                    You need a project source file, a file to help with
-                    configuration, and a file to help create the Makefile,
-                    and a README file:
-                    <filename>hello.c</filename>,
-                    <filename>configure.ac</filename>,
-                    <filename>Makefile.am</filename>, and
-                    <filename>README</filename>, respectively.</para>
-
-                    <para> Use the following command to create an empty README
-                    file, which is required by GNU Coding Standards:
-                    <literallayout class='monospaced'>
-     $ touch README
-                    </literallayout>
-                    Create the remaining three files as follows:
-                    <itemizedlist>
-                        <listitem><para>
-                            <emphasis><filename>hello.c</filename>:</emphasis>
-                            <literallayout class='monospaced'>
-     #include &lt;stdio.h&gt;
-
-     main()
-        {
-           printf("Hello World!\n");
-        }
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis><filename>configure.ac</filename>:</emphasis>
-                            <literallayout class='monospaced'>
-     AC_INIT(hello,0.1)
-     AM_INIT_AUTOMAKE([foreign])
-     AC_PROG_CC
-     AC_CONFIG_FILES(Makefile)
-     AC_OUTPUT
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            <emphasis><filename>Makefile.am</filename>:</emphasis>
-                            <literallayout class='monospaced'>
-     bin_PROGRAMS = hello
-     hello_SOURCES = hello.c
-                            </literallayout>
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Source the Cross-Toolchain
-                    Environment Setup File:</emphasis>
-                    As described earlier in the manual, installing the
-                    cross-toolchain creates a cross-toolchain
-                    environment setup script in the directory that the SDK
-                    was installed.
-                    Before you can use the tools to develop your project,
-                    you must source this setup script.
-                    The script begins with the string "environment-setup"
-                    and contains the machine architecture, which is
-                    followed by the string "poky-linux".
-                    For this example, the command sources a script from the
-                    default SDK installation directory that uses the
-                    32-bit Intel x86 Architecture and the
-                    &DISTRO_NAME; Yocto Project release:
-                    <literallayout class='monospaced'>
-     $ source /opt/poky/&DISTRO;/environment-setup-i586-poky-linux
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Create the <filename>configure</filename> Script:</emphasis>
-                    Use the <filename>autoreconf</filename> command to
-                    generate the <filename>configure</filename> script.
-                    <literallayout class='monospaced'>
-     $ autoreconf
-                    </literallayout>
-                    The <filename>autoreconf</filename> tool takes care
-                    of running the other Autotools such as
-                    <filename>aclocal</filename>,
-                    <filename>autoconf</filename>, and
-                    <filename>automake</filename>.
-                    <note>
-                        If you get errors from
-                        <filename>configure.ac</filename>, which
-                        <filename>autoreconf</filename> runs, that indicate
-                        missing files, you can use the "-i" option, which
-                        ensures missing auxiliary files are copied to the build
-                        host.
-                    </note>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Cross-Compile the Project:</emphasis>
-                    This command compiles the project using the
-                    cross-compiler.
-                    The
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-CONFIGURE_FLAGS'><filename>CONFIGURE_FLAGS</filename></ulink>
-                    environment variable provides the minimal arguments for
-                    GNU configure:
-                    <literallayout class='monospaced'>
-     $ ./configure ${CONFIGURE_FLAGS}
-                    </literallayout>
-                    For an Autotools-based project, you can use the
-                    cross-toolchain by just passing the appropriate host
-                    option to <filename>configure.sh</filename>.
-                    The host option you use is derived from the name of the
-                    environment setup script found in the directory in which
-                    you installed the cross-toolchain.
-                    For example, the host option for an ARM-based target that
-                    uses the GNU EABI is
-                    <filename>armv5te-poky-linux-gnueabi</filename>.
-                    You will notice that the name of the script is
-                    <filename>environment-setup-armv5te-poky-linux-gnueabi</filename>.
-                    Thus, the following command works to update your project
-                    and rebuild it using the appropriate cross-toolchain tools:
-                    <literallayout class='monospaced'>
-     $ ./configure --host=armv5te-poky-linux-gnueabi --with-libtool-sysroot=<replaceable>sysroot_dir</replaceable>
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Make and Install the Project:</emphasis>
-                    These two commands generate and install the project
-                    into the destination directory:
-                    <literallayout class='monospaced'>
-     $ make
-     $ make install DESTDIR=./tmp
-                    </literallayout>
-                    <note>
-                        To learn about environment variables established
-                        when you run the cross-toolchain environment setup
-                        script and how they are used or overridden when
-                        the Makefile, see the
-                        "<link linkend='makefile-based-projects'>Makefile-Based Projects</link>"
-                        section.
-                    </note>
-                    This next command is a simple way to verify the
-                    installation of your project.
-                    Running the command prints the architecture on which
-                    the binary file can run.
-                    This architecture should be the same architecture that
-                    the installed cross-toolchain supports.
-                    <literallayout class='monospaced'>
-     $ file ./tmp/usr/local/bin/hello
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Execute Your Project:</emphasis>
-                    To execute the project, you would need to run it on your
-                    target hardware.
-                    If your target hardware happens to be your build host,
-                    you could run the project as follows:
-                    <literallayout class='monospaced'>
-     $ ./tmp/usr/local/bin/hello
-                    </literallayout>
-                    As expected, the project displays the "Hello World!"
-                    message.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-
-    <section id='makefile-based-projects'>
-        <title>Makefile-Based Projects</title>
-
-        <para>
-            Simple Makefile-based projects use and interact with the
-            cross-toolchain environment variables established when you run
-            the cross-toolchain environment setup script.
-            The environment variables are subject to general
-            <filename>make</filename> rules.
-        </para>
-
-        <para>
-            This section presents a simple Makefile development flow and
-            provides an example that lets you see how you can use
-            cross-toolchain environment variables and Makefile variables
-            during development.
-            <imagedata fileref="figures/sdk-makefile-flow.png" width="6in" height="7in" align="center" />
-        </para>
-
-        <para>
-            The main point of this section is to explain the following three
-            cases regarding variable behavior:
-            <itemizedlist>
-                <listitem><para>
-                    <emphasis>Case 1 - No Variables Set in the
-                    <filename>Makefile</filename> Map to Equivalent
-                    Environment Variables Set in the SDK Setup Script:</emphasis>
-                    Because matching variables are not specifically set in the
-                    <filename>Makefile</filename>, the variables retain their
-                    values based on the environment setup script.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Case 2 - Variables Are Set in the Makefile that
-                    Map to Equivalent Environment Variables from the SDK
-                    Setup Script:</emphasis>
-                    Specifically setting matching variables in the
-                    <filename>Makefile</filename> during the build results in
-                    the environment settings of the variables being
-                    overwritten.
-                    In this case, the variables you set in the
-                    <filename>Makefile</filename> are used.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Case 3 - Variables Are Set Using the Command Line
-                    that Map to Equivalent Environment Variables from the
-                    SDK Setup Script:</emphasis>
-                    Executing the <filename>Makefile</filename> from the
-                    command line results in the environment variables being
-                    overwritten.
-                    In this case, the command-line content is used.
-                    </para></listitem>
-            </itemizedlist>
-            <note>
-                Regardless of how you set your variables, if you use
-                the "-e" option with <filename>make</filename>, the
-                variables from the SDK setup script take precedence:
-                <literallayout class='monospaced'>
-     $ make -e <replaceable>target</replaceable>
-                </literallayout>
-            </note>
-        </para>
-
-        <para>
-            The remainder of this section presents a simple Makefile example
-            that demonstrates these variable behaviors.
-        </para>
-
-        <para>
-            In a new shell environment variables are not established for the
-            SDK until you run the setup script.
-            For example, the following commands show a null value for the
-            compiler variable (i.e.
-            <ulink url='&YOCTO_DOCS_REF_URL;#var-CC'><filename>CC</filename></ulink>).
-            <literallayout class='monospaced'>
-     $ echo ${CC}
-
-     $
-            </literallayout>
-            Running the SDK setup script for a 64-bit build host and an
-            i586-tuned target architecture for a
-            <filename>core-image-sato</filename> image using the current
-            &DISTRO; Yocto Project release and then echoing that variable
-            shows the value established through the script:
-            <literallayout class='monospaced'>
-     $ source /opt/poky/&DISTRO;/environment-setup-i586-poky-linux
-     $ echo ${CC}
-     i586-poky-linux-gcc -m32 -march=i586 --sysroot=/opt/poky/2.5/sysroots/i586-poky-linux
-            </literallayout>
-        </para>
-
-        <para>
-            To illustrate variable use, work through this simple "Hello World!"
-            example:
-            <orderedlist>
-                <listitem><para>
-                    <emphasis>Create a Working Directory and Populate It:</emphasis>
-                    Create a clean directory for your project and then make
-                    that directory your working location.
-                    <literallayout class='monospaced'>
-     $ mkdir $HOME/helloworld
-     $ cd $HOME/helloworld
-                    </literallayout>
-                    After setting up the directory, populate it with files
-                    needed for the flow.
-                    You need a <filename>main.c</filename> file from which you
-                    call your function, a <filename>module.h</filename> file
-                    to contain headers, and a <filename>module.c</filename>
-                    that defines your function.
-                    </para>
-
-                    <para>Create the three files as follows:
-                        <itemizedlist>
-                            <listitem><para>
-                                <emphasis><filename>main.c</filename>:</emphasis>
-                                <literallayout class='monospaced'>
-     #include "module.h"
-     void sample_func();
-     int main()
-     {
-     	sample_func();
-     	return 0;
-     }
-                                </literallayout>
-                                </para></listitem>
-                            <listitem><para>
-                                <emphasis><filename>module.h</filename>:</emphasis>
-                                <literallayout class='monospaced'>
-     #include &lt;stdio.h&gt;
-     void sample_func();
-                                </literallayout>
-                                </para></listitem>
-                            <listitem><para>
-                                <emphasis><filename>module.c</filename>:</emphasis>
-                                <literallayout class='monospaced'>
-     #include "module.h"
-     void sample_func()
-     {
-	     printf("Hello World!");
-	     printf("\n");
-     }
-                                </literallayout>
-                                </para></listitem>
-                        </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Source the Cross-Toolchain Environment Setup File:</emphasis>
-                    As described earlier in the manual, installing the
-                    cross-toolchain creates a cross-toolchain environment setup
-                    script in the directory that the SDK was installed.
-                    Before you can use the tools to develop your project,
-                    you must source this setup script.
-                    The script begins with the string "environment-setup"
-                    and contains the machine architecture, which is
-                    followed by the string "poky-linux".
-                    For this example, the command sources a script from the
-                    default SDK installation directory that uses the
-                    32-bit Intel x86 Architecture and the
-                    &DISTRO_NAME; Yocto Project release:
-                    <literallayout class='monospaced'>
-     $ source /opt/poky/&DISTRO;/environment-setup-i586-poky-linux
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Create the <filename>Makefile</filename>:</emphasis>
-                    For this example, the Makefile contains two lines that
-                    can be used to set the <filename>CC</filename> variable.
-                    One line is identical to the value that is set when you
-                    run the SDK environment setup script, and the other line
-                    sets <filename>CC</filename> to "gcc", the default GNU
-                    compiler on the build host:
-                    <literallayout class='monospaced'>
-     # CC=i586-poky-linux-gcc  -m32 -march=i586 --sysroot=/opt/poky/2.5/sysroots/i586-poky-linux
-     # CC="gcc"
-     all: main.o module.o
-     	 ${CC} main.o module.o -o target_bin
-     main.o: main.c module.h
-	     ${CC} -I . -c main.c
-     module.o: module.c module.h
-	     ${CC} -I . -c module.c
-     clean:
-	     rm -rf *.o
-	     rm target_bin
-                    </literallayout>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Make the Project:</emphasis>
-                    Use the <filename>make</filename> command to create the
-                    binary output file.
-                    Because variables are commented out in the Makefile,
-                    the value used for <filename>CC</filename> is the value
-                    set when the SDK environment setup file was run:
-                    <literallayout class='monospaced'>
-     $ make
-     i586-poky-linux-gcc  -m32 -march=i586 --sysroot=/opt/poky/2.5/sysroots/i586-poky-linux -I . -c main.c
-     i586-poky-linux-gcc  -m32 -march=i586 --sysroot=/opt/poky/2.5/sysroots/i586-poky-linux -I . -c module.c
-     i586-poky-linux-gcc  -m32 -march=i586 --sysroot=/opt/poky/2.5/sysroots/i586-poky-linux main.o module.o -o target_bin
-                    </literallayout>
-                    From the results of the previous command, you can see that
-                    the compiler used was the compiler established through
-                    the <filename>CC</filename> variable defined in the
-                    setup script.</para>
-
-                    <para>You can override the <filename>CC</filename>
-                    environment variable with the same variable as set from
-                    the Makefile by uncommenting the line in the Makefile
-                    and running <filename>make</filename> again.
-                    <literallayout class='monospaced'>
-     $ make clean
-     rm -rf *.o
-     rm target_bin
-     #
-     # Edit the Makefile by uncommenting the line that sets CC to "gcc"
-     #
-     $ make
-     gcc -I . -c main.c
-     gcc -I . -c module.c
-     gcc main.o module.o -o target_bin
-                    </literallayout>
-                    As shown in the previous example, the cross-toolchain
-                    compiler is not used.
-                    Rather, the default compiler is used.</para>
-
-                    <para>This next case shows how to override a variable
-                    by providing the variable as part of the command line.
-                    Go into the Makefile and re-insert the comment character
-                    so that running <filename>make</filename> uses
-                    the established SDK compiler.
-                    However, when you run <filename>make</filename>, use a
-                    command-line argument to set <filename>CC</filename>
-                    to "gcc":
-                    <literallayout class='monospaced'>
-     $ make clean
-     rm -rf *.o
-     rm target_bin
-     #
-     # Edit the Makefile to comment out the line setting CC to "gcc"
-     #
-     $ make
-     i586-poky-linux-gcc  -m32 -march=i586 --sysroot=/opt/poky/2.5/sysroots/i586-poky-linux -I . -c main.c
-     i586-poky-linux-gcc  -m32 -march=i586 --sysroot=/opt/poky/2.5/sysroots/i586-poky-linux -I . -c module.c
-     i586-poky-linux-gcc  -m32 -march=i586 --sysroot=/opt/poky/2.5/sysroots/i586-poky-linux main.o module.o -o target_bin
-     $ make clean
-     rm -rf *.o
-     rm target_bin
-     $ make CC="gcc"
-     gcc -I . -c main.c
-     gcc -I . -c module.c
-     gcc main.o module.o -o target_bin
-                    </literallayout>
-                    In the previous case, the command-line argument overrides
-                    the SDK environment variable.</para>
-
-                    <para>In this last case, edit Makefile again to use the
-                    "gcc" compiler but then use the "-e" option on the
-                    <filename>make</filename> command line:
-                    <literallayout class='monospaced'>
-     $ make clean
-     rm -rf *.o
-     rm target_bin
-     #
-     # Edit the Makefile to use "gcc"
-     #
-     $ make
-     gcc -I . -c main.c
-     gcc -I . -c module.c
-     gcc main.o module.o -o target_bin
-     $ make clean
-     rm -rf *.o
-     rm target_bin
-     $ make -e
-     i586-poky-linux-gcc  -m32 -march=i586 --sysroot=/opt/poky/2.5/sysroots/i586-poky-linux -I . -c main.c
-     i586-poky-linux-gcc  -m32 -march=i586 --sysroot=/opt/poky/2.5/sysroots/i586-poky-linux -I . -c module.c
-     i586-poky-linux-gcc  -m32 -march=i586 --sysroot=/opt/poky/2.5/sysroots/i586-poky-linux main.o module.o -o target_bin
-                    </literallayout>
-                    In the previous case, the "-e" option forces
-                    <filename>make</filename> to use the SDK environment
-                    variables regardless of the values in the Makefile.
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>Execute Your Project:</emphasis>
-                    To execute the project (i.e.
-                    <filename>target_bin</filename>), use the following
-                    command:
-                    <literallayout class='monospaced'>
-     $ ./target_bin
-     Hello World!
-                    </literallayout>
-                    <note>
-                        If you used the cross-toolchain compiler to build
-                        <filename>target_bin</filename> and your build host
-                        differs in architecture from that of the target
-                        machine, you need to run your project on the target
-                        device.
-                    </note>
-                    As expected, the project displays the "Hello World!"
-                    message.
-                    </para></listitem>
-            </orderedlist>
-        </para>
-    </section>
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/sphinx-static/theme_overrides.css b/poky/documentation/sphinx-static/theme_overrides.css
index 55da38a..d235cb8 100644
--- a/poky/documentation/sphinx-static/theme_overrides.css
+++ b/poky/documentation/sphinx-static/theme_overrides.css
@@ -1,5 +1,5 @@
 /*
-    SPDX-License-Identifier: CC-BY-2.0-UK
+    SPDX-License-Identifier: CC-BY-SA-2.0-UK
 */
 
 body {
diff --git a/poky/documentation/template/Vera.xml b/poky/documentation/template/Vera.xml
deleted file mode 100644
index 3c82043..0000000
--- a/poky/documentation/template/Vera.xml
+++ /dev/null
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\ No newline at end of file
diff --git a/poky/documentation/template/VeraMoBd.xml b/poky/documentation/template/VeraMoBd.xml
deleted file mode 100644
index 9b33107..0000000
--- a/poky/documentation/template/VeraMoBd.xml
+++ /dev/null
@@ -1 +0,0 @@
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\ No newline at end of file
diff --git a/poky/documentation/template/VeraMono.xml b/poky/documentation/template/VeraMono.xml
deleted file mode 100644
index 3a0a866..0000000
--- a/poky/documentation/template/VeraMono.xml
+++ /dev/null
@@ -1 +0,0 @@
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gi="222" ue="733" us="733"/><bf gi="159" ue="937" us="937"/><bf gi="155" ue="960" us="960"/><bf gi="178" ue="8212" us="8211"/><bf gi="0" ue="8213" us="8213"/><bf gi="0" ue="8214" us="8214"/><bf gi="0" ue="8215" us="8215"/><bf gi="182" ue="8217" us="8216"/><bf gi="196" ue="8218" us="8218"/><bf gi="0" ue="8219" us="8219"/><bf gi="180" ue="8221" us="8220"/><bf gi="197" ue="8222" us="8222"/><bf gi="0" ue="8223" us="8223"/><bf gi="130" ue="8224" us="8224"/><bf gi="194" ue="8225" us="8225"/><bf gi="135" ue="8226" us="8226"/><bf gi="0" ue="8227" us="8227"/><bf gi="0" ue="8228" us="8228"/><bf gi="0" ue="8229" us="8229"/><bf gi="171" ue="8230" us="8230"/><bf gi="198" ue="8240" us="8240"/><bf gi="190" ue="8250" us="8249"/><bf gi="258" ue="8364" us="8364"/><bf gi="140" ue="8482" us="8482"/><bf gi="152" ue="8706" us="8706"/><bf gi="0" ue="8707" us="8707"/><bf gi="0" ue="8708" us="8708"/><bf gi="0" ue="8709" us="8709"/><bf gi="168" ue="8710" us="8710"/><bf gi="154" ue="8719" us="8719"/><bf gi="0" 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\ No newline at end of file
diff --git a/poky/documentation/template/component.title.xsl b/poky/documentation/template/component.title.xsl
deleted file mode 100644
index ee21d59..0000000
--- a/poky/documentation/template/component.title.xsl
+++ /dev/null
@@ -1,39 +0,0 @@
-<xsl:stylesheet version="1.0"
-  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-  xmlns:d="http://docbook.org/ns/docbook"
-  xmlns="http://www.w3.org/1999/xhtml"
-  exclude-result-prefixes="d">
-
-  <xsl:template name="component.title">
-    <xsl:param name="node" select="."/>
-
-    <xsl:variable name="level">
-      <xsl:choose>
-        <xsl:when test="ancestor::d:section">
-          <xsl:value-of select="count(ancestor::d:section)+1"/>
-        </xsl:when>
-        <xsl:when test="ancestor::sect5">6</xsl:when>
-        <xsl:when test="ancestor::sect4">5</xsl:when>
-        <xsl:when test="ancestor::sect3">4</xsl:when>
-        <xsl:when test="ancestor::sect2">3</xsl:when>
-        <xsl:when test="ancestor::sect1">2</xsl:when>
-        <xsl:otherwise>1</xsl:otherwise>
-      </xsl:choose>
-    </xsl:variable>
-    <xsl:element name="h{$level+1}" namespace="http://www.w3.org/1999/xhtml">
-      <xsl:attribute name="class">title</xsl:attribute>
-      <xsl:if test="$generate.id.attributes = 0">
-        <xsl:call-template name="anchor">
-          <xsl:with-param name="node" select="$node"/>
-          <xsl:with-param name="conditional" select="0"/>
-        </xsl:call-template>
-      </xsl:if>
-      <xsl:apply-templates select="$node" mode="object.title.markup">
-        <xsl:with-param name="allow-anchors" select="1"/>
-      </xsl:apply-templates>
-      <xsl:call-template name="permalink">
-        <xsl:with-param name="node" select="$node"/>
-      </xsl:call-template>
-    </xsl:element>
-  </xsl:template>
-</xsl:stylesheet>
diff --git a/poky/documentation/template/division.title.xsl b/poky/documentation/template/division.title.xsl
deleted file mode 100644
index 6c26597..0000000
--- a/poky/documentation/template/division.title.xsl
+++ /dev/null
@@ -1,24 +0,0 @@
-<xsl:stylesheet version="1.0"
-  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-  xmlns:d="http://docbook.org/ns/docbook"
-  xmlns="http://www.w3.org/1999/xhtml"
-  exclude-result-prefixes="d">
-  
-  <xsl:template name="division.title">
-    <xsl:param name="node" select="."/>
-    
-    <h1>
-      <xsl:attribute name="class">title</xsl:attribute>
-      <xsl:call-template name="anchor">
-        <xsl:with-param name="node" select="$node"/>
-        <xsl:with-param name="conditional" select="0"/>
-      </xsl:call-template>
-      <xsl:apply-templates select="$node" mode="object.title.markup">
-        <xsl:with-param name="allow-anchors" select="1"/>
-      </xsl:apply-templates>
-      <xsl:call-template name="permalink">
-        <xsl:with-param name="node" select="$node"/>
-      </xsl:call-template>
-    </h1>
-  </xsl:template>
-</xsl:stylesheet>
diff --git a/poky/documentation/template/embedded_video.xsl b/poky/documentation/template/embedded_video.xsl
deleted file mode 100644
index dfb33c3..0000000
--- a/poky/documentation/template/embedded_video.xsl
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<xsl:stylesheet version="1.0"
-   xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-   xmlns:d="http://docbook.org/ns/docbook">
-
-   <xsl:output method="html" />
-
-   <xsl:template match="/d:chapter/d:section/d:mediaobject">
-      <xsl:for-each select=".">
-         <xsl:variable name="vid_url">
-            <xsl:value-of select="./d:videoobject/d:videodata/@fileref" />
-         </xsl:variable>
-         <div style="text-align: center; margin: auto">
-            <object type="application/x-shockwave-flash" width="640" height="420" data="{$vid_url}?color2=FBE9EC&amp;showsearch=0&amp;version=3&amp;modestbranding=1&amp;fs=1">
-               <param name="movie" value="{$vid_url}?color2=FBE9EC&amp;showsearch=0&amp;version=3&amp;modestbranding=1&amp;fs=1" />
-               <param name="allowFullScreen" value="true" />
-               <param name="allowscriptaccess" value="always" />
-            </object>
-         </div>
-      </xsl:for-each>
-  </xsl:template>
-</xsl:stylesheet>
diff --git a/poky/documentation/template/fop-config.xml b/poky/documentation/template/fop-config.xml
deleted file mode 100644
index 09cc5ca..0000000
--- a/poky/documentation/template/fop-config.xml
+++ /dev/null
@@ -1,58 +0,0 @@
-<fop version="1.0">
-
-  <!-- Strict user configuration -->
-  <strict-configuration>true</strict-configuration>
-
-  <!-- Strict FO validation -->
-  <strict-validation>true</strict-validation>
-
-   <!--
-    Set the baseDir so common/openedhand.svg references in plans still
-    work ok. Note, relative file references to current dir should still work.
-    -->	
-  <base>../template</base>
-  <font-base>../template</font-base>
- 
-  <!-- Source resolution in dpi (dots/pixels per inch) for determining the
-       size of pixels in SVG and bitmap images, default: 72dpi -->
-  <!-- <source-resolution>72</source-resolution> -->
-  <!-- Target resolution in dpi (dots/pixels per inch) for specifying the
-       target resolution for generated bitmaps, default: 72dpi -->
-  <!-- <target-resolution>72</target-resolution> -->
- 
-  <!-- default page-height and page-width, in case
-       value is specified as auto -->
-  <default-page-settings height="11in" width="8.26in"/> 
- 
-  <!-- <use-cache>false</use-cache> -->
- 
-  <renderers>
-    <renderer mime="application/pdf">
-      <fonts>
-        <font  metrics-file="VeraMono.xml"
-               kerning="yes" 
-               embed-url="VeraMono.ttf">
-          <font-triplet name="veramono" style="normal" weight="normal"/>
-        </font>
-
-        <font  metrics-file="VeraMoBd.xml"
-               kerning="yes" 
-               embed-url="VeraMoBd.ttf">
-          <font-triplet name="veramono" style="normal" weight="bold"/>
-        </font>
-
-        <font  metrics-file="Vera.xml"
-               kerning="yes" 
-               embed-url="Vera.ttf">
-          <font-triplet name="verasans" style="normal" weight="normal"/>
-          <font-triplet name="verasans" style="normal" weight="bold"/>
-          <font-triplet name="verasans" style="italic" weight="normal"/>
-          <font-triplet name="verasans" style="italic" weight="bold"/>
-        </font>
-        
-        <auto-detect/>
-      </fonts>
-    </renderer>
-  </renderers>
-</fop>
-
diff --git a/poky/documentation/template/formal.object.heading.xsl b/poky/documentation/template/formal.object.heading.xsl
deleted file mode 100644
index 1a5e697..0000000
--- a/poky/documentation/template/formal.object.heading.xsl
+++ /dev/null
@@ -1,21 +0,0 @@
-<xsl:stylesheet version="1.0"
-  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-  xmlns:d="http://docbook.org/ns/docbook"
-  xmlns="http://www.w3.org/1999/xhtml"
-  exclude-result-prefixes="d">
-  
-  <xsl:template name="formal.object.heading">
-    <xsl:param name="object" select="."/>
-    <xsl:param name="title">
-      <xsl:apply-templates select="$object" mode="object.title.markup">
-        <xsl:with-param name="allow-anchors" select="1"/>
-      </xsl:apply-templates>
-    </xsl:param>
-    <p class="title">
-      <b><xsl:copy-of select="$title"/></b>
-      <xsl:call-template name="permalink">
-        <xsl:with-param name="node" select="$object"/>
-      </xsl:call-template>
-    </p>
-  </xsl:template>
-</xsl:stylesheet>
diff --git a/poky/documentation/template/gloss-permalinks.xsl b/poky/documentation/template/gloss-permalinks.xsl
deleted file mode 100644
index 6bf5811..0000000
--- a/poky/documentation/template/gloss-permalinks.xsl
+++ /dev/null
@@ -1,14 +0,0 @@
-<xsl:stylesheet version="1.0"
-  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-  xmlns:d="http://docbook.org/ns/docbook"
-  xmlns="http://www.w3.org/1999/xhtml">
-
-  <xsl:template match="glossentry/glossterm">
-    <xsl:apply-imports/>
-    <xsl:if test="$generate.permalink != 0">
-      <xsl:call-template name="permalink">
-        <xsl:with-param name="node" select=".."/>
-      </xsl:call-template>
-    </xsl:if>
-  </xsl:template>
-</xsl:stylesheet>
diff --git a/poky/documentation/template/permalinks.xsl b/poky/documentation/template/permalinks.xsl
deleted file mode 100644
index d2a1c14..0000000
--- a/poky/documentation/template/permalinks.xsl
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<xsl:stylesheet version="1.0"
-  xmlns="http://www.w3.org/1999/xhtml"
-  xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
-
-  <xsl:param name="generate.permalink" select="1"/>
-  <xsl:param name="permalink.text">¶</xsl:param>
-
-  <xsl:template name="permalink">
-    <xsl:param name="node"/>
-
-    <xsl:if test="$generate.permalink != '0'">
-      <span class="permalink">
-        <a alt="Permalink" title="Permalink">
-          <xsl:attribute name="href">
-            <xsl:call-template name="href.target">
-              <xsl:with-param name="object"  select="$node"/>
-            </xsl:call-template>
-          </xsl:attribute>
-          <xsl:copy-of select="$permalink.text"/>
-        </a>
-      </span>
-    </xsl:if>
-  </xsl:template>
-</xsl:stylesheet>
diff --git a/poky/documentation/template/poky-db-pdf.xsl b/poky/documentation/template/poky-db-pdf.xsl
deleted file mode 100644
index f8a3df1..0000000
--- a/poky/documentation/template/poky-db-pdf.xsl
+++ /dev/null
@@ -1,64 +0,0 @@
-<?xml version='1.0'?>
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
-
-  <xsl:import href="http://docbook.sourceforge.net/release/xsl/current/fo/docbook.xsl" />
-
-  <!-- check project-plan.sh for how this is generated, needed to tweak
-       the cover page
-    -->
-  <xsl:include href="/tmp/titlepage.xsl"/>
-
-  <!-- To force a page break in document, i.e per section add a
-      <?hard-pagebreak?> tag.
-  -->
- <xsl:template match="processing-instruction('hard-pagebreak')">
-   <fo:block break-before='page' />
- </xsl:template>
-
-  <!--Fix for defualt indent getting TOC all wierd..
-      See http://sources.redhat.com/ml/docbook-apps/2005-q1/msg00455.html
-      FIXME: must be a better fix
-    -->
-  <xsl:param name="body.start.indent" select="'0'"/>
-  <!--<xsl:param name="title.margin.left" select="'0'"/>-->
-
-  <!-- stop long-ish header titles getting wrapped -->
-  <xsl:param name="header.column.widths">1 10 1</xsl:param>
-
-  <!-- customise headers and footers a little -->
-
-  <xsl:template name="head.sep.rule">
-   <xsl:if test="$header.rule != 0">
-     <xsl:attribute name="border-bottom-width">0.5pt</xsl:attribute>
-     <xsl:attribute name="border-bottom-style">solid</xsl:attribute>
-     <xsl:attribute name="border-bottom-color">#999999</xsl:attribute>
-   </xsl:if>
-  </xsl:template>
-
-  <xsl:template name="foot.sep.rule">
-    <xsl:if test="$footer.rule != 0">
-     <xsl:attribute name="border-top-width">0.5pt</xsl:attribute>
-     <xsl:attribute name="border-top-style">solid</xsl:attribute>
-     <xsl:attribute name="border-top-color">#999999</xsl:attribute>
-    </xsl:if>
-  </xsl:template>
-
-  <xsl:attribute-set name="header.content.properties">
-    <xsl:attribute name="color">#999999</xsl:attribute>
-  </xsl:attribute-set>
-
-  <xsl:attribute-set name="footer.content.properties">
-    <xsl:attribute name="color">#999999</xsl:attribute>
-  </xsl:attribute-set>
-
-
-  <!-- general settings -->
-
-  <xsl:param name="fop1.extensions" select="1"></xsl:param>
-  <xsl:param name="paper.type" select="'A4'"></xsl:param>
-  <xsl:param name="section.autolabel" select="1"></xsl:param>
-  <xsl:param name="body.font.family" select="'verasans'"></xsl:param>
-  <xsl:param name="title.font.family" select="'verasans'"></xsl:param>
-  <xsl:param name="monospace.font.family" select="'veramono'"></xsl:param>
-
-</xsl:stylesheet>
diff --git a/poky/documentation/template/qa-code-permalinks.xsl b/poky/documentation/template/qa-code-permalinks.xsl
deleted file mode 100644
index a309095..0000000
--- a/poky/documentation/template/qa-code-permalinks.xsl
+++ /dev/null
@@ -1,23 +0,0 @@
-<!--
-This XSL sheet enables creation of permalinks for <para><code>
-constructs.  Right now, this construct occurs only in the ref-manual
-book's qa issues and warnings chapter.  However, if the construct
-were to appear anywhere in that ref-manual, a permalink would be
-generated.  I don't foresee any <para><code> constructs being used
-in the future but if they are then a permalink with a generically
-numbered permalink would be generated.
--->
-<xsl:stylesheet version="1.0"
-  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-  xmlns:d="http://docbook.org/ns/docbook"
-  xmlns="http://www.w3.org/1999/xhtml">
-
-  <xsl:template match="para/code">
-    <xsl:apply-imports/>
-    <xsl:if test="$generate.permalink != 0">
-      <xsl:call-template name="permalink">
-        <xsl:with-param name="node" select=".."/>
-      </xsl:call-template>
-    </xsl:if>
-  </xsl:template>
-</xsl:stylesheet>
diff --git a/poky/documentation/template/section.title.xsl b/poky/documentation/template/section.title.xsl
deleted file mode 100644
index 5c6ff9a..0000000
--- a/poky/documentation/template/section.title.xsl
+++ /dev/null
@@ -1,55 +0,0 @@
-<xsl:stylesheet version="1.0"
-  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-  xmlns:d="http://docbook.org/ns/docbook"
-  xmlns="http://www.w3.org/1999/xhtml" exclude-result-prefixes="d">
-
-  <xsl:template name="section.title">
-    <xsl:variable name="section"
-      select="(ancestor::section |
-               ancestor::simplesect|
-               ancestor::sect1|
-               ancestor::sect2|
-               ancestor::sect3|
-               ancestor::sect4|
-               ancestor::sect5)[last()]"/>
-
-    <xsl:variable name="renderas">
-      <xsl:choose>
-        <xsl:when test="$section/@renderas = 'sect1'">1</xsl:when>
-        <xsl:when test="$section/@renderas = 'sect2'">2</xsl:when>
-        <xsl:when test="$section/@renderas = 'sect3'">3</xsl:when>
-        <xsl:when test="$section/@renderas = 'sect4'">4</xsl:when>
-        <xsl:when test="$section/@renderas = 'sect5'">5</xsl:when>
-        <xsl:otherwise><xsl:value-of select="''"/></xsl:otherwise>
-      </xsl:choose>
-    </xsl:variable>
-
-    <xsl:variable name="level">
-      <xsl:choose>
-        <xsl:when test="$renderas != ''">
-          <xsl:value-of select="$renderas"/>
-        </xsl:when>
-        <xsl:otherwise>
-          <xsl:call-template name="section.level">
-            <xsl:with-param name="node" select="$section"/>
-          </xsl:call-template>
-        </xsl:otherwise>
-      </xsl:choose>
-    </xsl:variable>
-
-    <xsl:call-template name="section.heading">
-      <xsl:with-param name="section" select="$section"/>
-      <xsl:with-param name="level" select="$level"/>
-      <xsl:with-param name="title">
-        <xsl:apply-templates select="$section" mode="object.title.markup">
-          <xsl:with-param name="allow-anchors" select="1"/>
-        </xsl:apply-templates>
-        <xsl:if test="$level &gt; 0">
-          <xsl:call-template name="permalink">
-            <xsl:with-param name="node" select="$section"/>
-          </xsl:call-template>
-        </xsl:if>
-      </xsl:with-param>
-    </xsl:call-template>
-  </xsl:template>
-</xsl:stylesheet>
diff --git a/poky/documentation/template/titlepage.templates.xml b/poky/documentation/template/titlepage.templates.xml
deleted file mode 100644
index f53f147..0000000
--- a/poky/documentation/template/titlepage.templates.xml
+++ /dev/null
@@ -1,1227 +0,0 @@
-<!DOCTYPE t:templates [
-<!ENTITY hsize0 "10pt">
-<!ENTITY hsize1 "12pt">
-<!ENTITY hsize2 "14.4pt">
-<!ENTITY hsize3 "17.28pt">
-<!ENTITY hsize4 "20.736pt">
-<!ENTITY hsize5 "24.8832pt">
-<!ENTITY hsize0space "7.5pt"> <!-- 0.75 * hsize0 -->
-<!ENTITY hsize1space "9pt"> <!-- 0.75 * hsize1 -->
-<!ENTITY hsize2space "10.8pt"> <!-- 0.75 * hsize2 -->
-<!ENTITY hsize3space "12.96pt"> <!-- 0.75 * hsize3 -->
-<!ENTITY hsize4space "15.552pt"> <!-- 0.75 * hsize4 -->
-<!ENTITY hsize5space "18.6624pt"> <!-- 0.75 * hsize5 -->
-]>
-<t:templates xmlns:t="http://nwalsh.com/docbook/xsl/template/1.0"
-	     xmlns:param="http://nwalsh.com/docbook/xsl/template/1.0/param"
-             xmlns:fo="http://www.w3.org/1999/XSL/Format"
-             xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
-
-<!-- ********************************************************************
-     $Id: titlepage.templates.xml,v 1.23 2003/12/16 00:30:49 bobstayton Exp $
-     ********************************************************************
-
-     This file is part of the DocBook XSL Stylesheet distribution.
-     See ../README or http://docbook.sf.net/ for copyright
-     and other information.
-
-     ******************************************************************** -->
-
-<!-- ==================================================================== -->
-
-<t:titlepage t:element="article" t:wrapper="fo:block"
-             font-family="{$title.fontset}">
-
-  <t:titlepage-content t:side="recto"
-             text-align="center">
-
-    <mediaobject/>	     
-
-    <title t:named-template="component.title"
-	   param:node="ancestor-or-self::article[1]"
-	   keep-with-next="always"
-	   font-size="&hsize5;"
-	   font-weight="bold"/>
-
-    <subtitle param:node="ancestor-or-self::article[1]"
-	   keep-with-next="always"
-	   font-size="&hsize3;"
-	   font-weight="bold"
-       space-after="0.8em"/>
-
-    <corpauthor space-before="0.5em"
-                font-size="&hsize3;"/>
-    <authorgroup space-before="0.5em"
-                 font-size="&hsize2;"/>
-    <author space-before="0.5em"
-            font-size="&hsize2;" 
-            space-after="0.8em"/>
-
-    <email font-size="&hsize2;"/>
-
-    <othercredit space-before="0.5em"/>
-    <releaseinfo space-before="0.5em"/>
-    <copyright space-before="0.5em"/>
-    <legalnotice text-align="start"
-                 margin-left="0.5in"
-                 margin-right="0.5in"
-                 font-family="{$body.fontset}"/>
-    <pubdate space-before="0.5em"/>
-	<para></para>
-    <revision space-before="0.5em"/>
-    <revhistory space-before="0.5em"/>
-    <abstract space-before="0.5em"
-	      text-align="start"
-	      margin-left="0.5in"
-              margin-right="0.5in"
-              font-family="{$body.fontset}"/>
-
-    <para></para>
-  </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-  </t:titlepage-before>
-</t:titlepage>
-
-<!-- ==================================================================== -->
-
-<t:titlepage t:element="set" t:wrapper="fo:block">
-  <t:titlepage-content t:side="recto">
-      <title
-	     t:named-template="division.title"
-	     param:node="ancestor-or-self::set[1]"
-	     text-align="center"
-	     font-size="&hsize5;"
-	     space-before="&hsize5space;"
-	     font-weight="bold"
-	     font-family="{$title.fontset}"/>
-    <subtitle
-	      font-family="{$title.fontset}"
-	      text-align="center"/>
-    <corpauthor/>
-    <authorgroup/>
-    <author/>
-    <othercredit/>
-    <releaseinfo/>
-    <copyright/>
-    <legalnotice/>
-    <pubdate/>
-    <revision/>
-    <revhistory/>
-    <abstract/>
-  </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-  </t:titlepage-before>
-</t:titlepage>
-
-<!-- ==================================================================== -->
-
-  <t:titlepage t:element="book" t:wrapper="fo:block">
-    <t:titlepage-content t:side="recto">
-
-      <mediaobject/>	     
-
-      <subtitle
-		text-align="center"
-		font-size="&hsize4;"
-		space-before="&hsize4space;"
-		font-family="{$title.fontset}"/>
-      <corpauthor font-size="&hsize3;"
-		  keep-with-next="always"
-		  space-before="2in"/>
-      <authorgroup space-before="2in"/>
-      <author font-size="&hsize3;"
-	      space-before="&hsize2space;"
-	      keep-with-next="always"/>
-    </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-      <corpauthor/>
-      <authorgroup t:named-template="verso.authorgroup"/>
-      <author/>
-      <othercredit/>
-      <pubdate space-before="1em"/>
-      <copyright/>
-      <abstract/>
-      <legalnotice font-size="8pt"/>
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-      <fo:block break-after="page"/>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-      <fo:block break-after="page"/>
-  </t:titlepage-before>
-</t:titlepage>
-
-<!-- ==================================================================== -->
-
-<t:titlepage t:element="part" t:wrapper="fo:block">
-  <t:titlepage-content t:side="recto">
-      <title
-	     t:named-template="division.title"
-	     param:node="ancestor-or-self::part[1]"
-	     text-align="center"
-	     font-size="&hsize5;"
-	     space-before="&hsize5space;"
-	     font-weight="bold"
-	     font-family="{$title.fontset}"/>
-    <subtitle
-	      text-align="center"
-	      font-size="&hsize4;"
-	      space-before="&hsize4space;"
-	      font-weight='bold'
-	      font-style='italic'
-	      font-family="{$title.fontset}"/>
-  </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-  </t:titlepage-before>
-</t:titlepage>
-
-<t:titlepage t:element="partintro" t:wrapper="fo:block">
-  <t:titlepage-content t:side="recto">
-    <title
-	   text-align="center"
-	   font-size="&hsize5;"
-	   font-weight="bold"
-	   space-before="1em"
-	   font-family="{$title.fontset}"/>
-    <subtitle
-	      text-align="center"
-	      font-size="&hsize2;"
-	      font-weight="bold"
-	      font-style="italic"
-	      font-family="{$title.fontset}"/>
-    <corpauthor/>
-    <authorgroup/>
-    <author/>
-    <othercredit/>
-    <releaseinfo/>
-    <copyright/>
-    <legalnotice/>
-    <pubdate/>
-    <revision/>
-    <revhistory/>
-    <abstract/>
-  </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-  </t:titlepage-before>
-</t:titlepage>
-
-<!-- ==================================================================== -->
-
-<t:titlepage t:element="reference" t:wrapper="fo:block">
-  <t:titlepage-content t:side="recto">
-      <title
-	     t:named-template="division.title"
-	     param:node="ancestor-or-self::reference[1]"
-	     text-align="center"
-	     font-size="&hsize5;"
-	     space-before="&hsize5space;"
-	     font-weight="bold"
-	     font-family="{$title.fontset}"/>
-    <subtitle
-	      font-family="{$title.fontset}"
-	      text-align="center"/>
-    <corpauthor/>
-    <authorgroup/>
-    <author/>
-    <othercredit/>
-    <releaseinfo/>
-    <copyright/>
-    <legalnotice/>
-    <pubdate/>
-    <revision/>
-    <revhistory/>
-    <abstract/>
-  </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-  </t:titlepage-before>
-</t:titlepage>
-
-<!-- ==================================================================== -->
-
-<t:titlepage t:element="refsynopsisdiv" t:wrapper="fo:block">
-  <t:titlepage-content t:side="recto">
-    <title
-	   font-family="{$title.fontset}"/>
-  </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-  </t:titlepage-before>
-</t:titlepage>
-
-<!-- ==================================================================== -->
-
-<t:titlepage t:element="refsection" t:wrapper="fo:block">
-  <t:titlepage-content t:side="recto">
-    <title
-	   font-family="{$title.fontset}"/>
-  </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-  </t:titlepage-before>
-</t:titlepage>
-
-<!-- ==================================================================== -->
-
-<t:titlepage t:element="refsect1" t:wrapper="fo:block">
-  <t:titlepage-content t:side="recto">
-    <title
-	   font-family="{$title.fontset}"/>
-  </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-  </t:titlepage-before>
-</t:titlepage>
-
-<!-- ==================================================================== -->
-
-<t:titlepage t:element="refsect2" t:wrapper="fo:block">
-  <t:titlepage-content t:side="recto">
-    <title
-	   font-family="{$title.fontset}"/>
-  </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-  </t:titlepage-before>
-</t:titlepage>
-
-<!-- ==================================================================== -->
-
-<t:titlepage t:element="refsect3" t:wrapper="fo:block">
-  <t:titlepage-content t:side="recto">
-    <title
-	   font-family="{$title.fontset}"/>
-  </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-  </t:titlepage-before>
-</t:titlepage>
-
-<!-- ==================================================================== -->
-
-  <t:titlepage t:element="dedication" t:wrapper="fo:block">
-    <t:titlepage-content t:side="recto">
-      <title
-	     t:force="1"
-	     t:named-template="component.title"
-	     param:node="ancestor-or-self::dedication[1]"
-	     margin-left="{$title.margin.left}"
-	     font-size="&hsize5;"
-	     font-family="{$title.fontset}"
-	     font-weight="bold"/>
-      <subtitle
-		font-family="{$title.fontset}"/>
-    </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-  </t:titlepage-before>
-</t:titlepage>
-
-<!-- ==================================================================== -->
-
-  <t:titlepage t:element="preface" t:wrapper="fo:block">
-    <t:titlepage-content t:side="recto">
-      <title
-	     t:force="1"
-	     t:named-template="component.title"
-	     param:node="ancestor-or-self::preface[1]"
-	     margin-left="{$title.margin.left}"
-	     font-size="&hsize5;"
-	     font-family="{$title.fontset}"
-	     font-weight="bold"/>
-      <subtitle
-		font-family="{$title.fontset}"/>
-      <corpauthor/>
-      <authorgroup/>
-      <author/>
-      <othercredit/>
-      <releaseinfo/>
-      <copyright/>
-      <legalnotice/>
-      <pubdate/>
-      <revision/>
-      <revhistory/>
-      <abstract/>
-    </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-  </t:titlepage-before>
-</t:titlepage>
-
-<!-- ==================================================================== -->
-
-  <t:titlepage t:element="chapter" t:wrapper="fo:block"
-               font-family="{$title.fontset}">
-    <t:titlepage-content t:side="recto" margin-left="{$title.margin.left}">
-      <title t:named-template="component.title"
-	     param:node="ancestor-or-self::chapter[1]"
-	     font-size="&hsize5;"
-	     font-weight="bold"/>
-
-      <subtitle space-before="0.5em"
-		font-style="italic"
-		font-size="&hsize2;"
-		font-weight="bold"/>
-
-      <corpauthor  space-before="0.5em"
-	           space-after="0.5em"
-                   font-size="&hsize2;"/>
-
-      <authorgroup space-before="0.5em"
-	           space-after="0.5em"
-                   font-size="&hsize2;"/>
-
-      <author      space-before="0.5em"
-	           space-after="0.5em"
-                   font-size="&hsize2;"/>
-
-      <othercredit/>
-      <releaseinfo/>
-      <copyright/>
-      <legalnotice/>
-      <pubdate/>
-      <revision/>
-      <revhistory/>
-      <abstract/>
-    </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-  </t:titlepage-before>
-</t:titlepage>
-
-<!-- ==================================================================== -->
-
-  <t:titlepage t:element="appendix" t:wrapper="fo:block">
-    <t:titlepage-content t:side="recto">
-      <title
-	     t:named-template="component.title"
-	     param:node="ancestor-or-self::appendix[1]"
-	     margin-left="{$title.margin.left}"
-	     font-size="&hsize5;"
-	     font-weight="bold"
-	     font-family="{$title.fontset}"/>
-      <subtitle
-		font-family="{$title.fontset}"/>
-      <corpauthor/>
-      <authorgroup/>
-      <author/>
-      <othercredit/>
-      <releaseinfo/>
-      <copyright/>
-      <legalnotice/>
-      <pubdate/>
-      <revision/>
-      <revhistory/>
-      <abstract/>
-    </t:titlepage-content>
-
-  <t:titlepage-content t:side="verso">
-  </t:titlepage-content>
-
-  <t:titlepage-separator>
-  </t:titlepage-separator>
-
-  <t:titlepage-before t:side="recto">
-  </t:titlepage-before>
-
-  <t:titlepage-before t:side="verso">
-  </t:titlepage-before>
-</t:titlepage>
-
-<!-- ==================================================================== -->
-
-<t:titlepage t:element="section" t:wrapper="fo:block">
-  <t:titlepage-content t:side="recto">
-    <title
-	   margin-left="{$title.margin.left}"
-	   font-family="{$title.fontset}"/>
-    <subtitle
-	      font-family="{$title.fontset}"/>
-    <corpauthor/>
-    <authorgroup/>
-    <author/>
-    <othercredit/>
-    <releaseinfo/>
-    <copyright/>
-    <legalnotice/>
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-<!-- ==================================================================== -->
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-  <t:titlepage t:element="glossdiv" t:wrapper="fo:block">
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-<!-- ==================================================================== -->
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-  <t:titlepage t:element="index" t:wrapper="fo:block">
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-<!-- ==================================================================== -->
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-  <!-- The indexdiv.title template is used so that manual and -->
-  <!-- automatically generated indexdiv titles get the same -->
-  <!-- formatting. -->
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-  <t:titlepage t:element="indexdiv" t:wrapper="fo:block">
-    <t:titlepage-content t:side="recto">
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-<!-- ==================================================================== -->
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-	     font-size="&hsize3;"
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diff --git a/poky/documentation/test-manual/history.rst b/poky/documentation/test-manual/history.rst
index 76d4309..89d4aad 100644
--- a/poky/documentation/test-manual/history.rst
+++ b/poky/documentation/test-manual/history.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ***********************
 Manual Revision History
diff --git a/poky/documentation/test-manual/test-manual-customization.xsl b/poky/documentation/test-manual/test-manual-customization.xsl
deleted file mode 100644
index 17bf57c..0000000
--- a/poky/documentation/test-manual/test-manual-customization.xsl
+++ /dev/null
@@ -1,29 +0,0 @@
-<?xml version='1.0'?>
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
-
-  <xsl:import href="http://downloads.yoctoproject.org/mirror/docbook-mirror/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-<!--
-
-  <xsl:import href="../template/1.76.1/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-  <xsl:import href="http://docbook.sourceforge.net/release/xsl/1.76.1/xhtml/docbook.xsl" />
-
--->
-
-  <xsl:include href="../template/permalinks.xsl"/>
-  <xsl:include href="../template/section.title.xsl"/>
-  <xsl:include href="../template/component.title.xsl"/>
-  <xsl:include href="../template/division.title.xsl"/>
-  <xsl:include href="../template/formal.object.heading.xsl"/>
-
-  <xsl:param name="html.stylesheet" select="'test-manual-style.css'" />
-  <xsl:param name="chapter.autolabel" select="1" />
-  <xsl:param name="appendix.autolabel" select="A" />
-  <xsl:param name="section.autolabel" select="1" />
-  <xsl:param name="section.label.includes.component.label" select="1" />
-  <xsl:param name="generate.id.attributes" select="1" />
-
-</xsl:stylesheet>
diff --git a/poky/documentation/test-manual/test-manual-intro.rst b/poky/documentation/test-manual/test-manual-intro.rst
index 53ad650..25b79f7 100644
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@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *****************************************
 The Yocto Project Test Environment Manual
diff --git a/poky/documentation/test-manual/test-manual-intro.xml b/poky/documentation/test-manual/test-manual-intro.xml
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-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='test-manual-intro'>
-
-<title>The Yocto Project Test Environment Manual</title>
-    <section id='test-welcome'>
-        <title>Welcome</title>
-
-        <para> Welcome to the Yocto Project Test Environment Manual! This manual is a work in
-            progress. The manual contains information about the testing environment used by the
-            Yocto Project to make sure each major and minor release works as intended. All the
-            project's testing infrastructure and processes are publicly visible and available so
-            that the community can see what testing is being performed, how it's being done and the
-            current status of the tests and the project at any given time. It is intended that Other
-            organizations can leverage off the process and testing environment used by the Yocto
-            Project to create their own automated, production test environment, building upon the
-            foundations from the project core. </para>
-
-        <para> Currently, the Yocto Project Test Environment Manual has no projected release date.
-            This manual is a work-in-progress and is being initially loaded with information from
-            the <ulink url="">README</ulink> files and notes from key engineers: <itemizedlist>
-                <listitem>
-                    <para>
-                        <emphasis><filename>yocto-autobuilder2</filename>:</emphasis> This <ulink
-                            url="http://git.yoctoproject.org/clean/cgit.cgi/yocto-autobuilder2/tree/README.md"
-                                ><filename>README.md</filename></ulink> is the main README which
-                        detials how to set up the Yocto Project Autobuilder. The
-                            <filename>yocto-autobuilder2</filename> repository represents the Yocto
-                        Project's console UI plugin to Buildbot and the configuration necessary to
-                        configure Buildbot to perform the testing the project requires. </para>
-                </listitem>
-                <listitem>
-                    <para>
-                        <emphasis><filename>yocto-autobuilder-helper</filename>:</emphasis> This
-                            <ulink
-                            url="http://git.yoctoproject.org/clean/cgit.cgi/yocto-autobuilder-helper/tree/README"
-                                ><filename>README</filename></ulink> and repository contains Yocto
-                        Project Autobuilder Helper scripts and configuration. The
-                            <filename>yocto-autobuilder-helper</filename> repository contains the
-                        "glue" logic that defines which tests to run and how to run them. As a
-                        result, it can be used by any Continuous Improvement (CI) system to run
-                        builds, support getting the correct code revisions, configure builds and
-                        layers, run builds, and collect results. The code is independent of any CI
-                        system, which means the code can work Buildbot, Jenkins, or others. This
-                        repository has a branch per release of the project defining the tests to run
-                        on a per release basis.</para>
-                </listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='test-yocto-project-autobuilder-overview'>
-        <title>Yocto Project Autobuilder Overview</title>
-
-        <para>The Yocto Project Autobuilder collectively refers to the software, tools, scripts, and
-            procedures used by the Yocto Project to test released software across supported hardware
-            in an automated and regular fashion. Basically, during the development of a Yocto
-            Project release, the Autobuilder tests if things work. The Autobuilder builds all test
-            targets and runs all the tests. </para>
-
-        <para>The Yocto Project uses now uses standard upstream  <ulink
-                url="https://docs.buildbot.net/0.9.15.post1/">Buildbot</ulink> (version 9) to drive
-            its integration and testing. Buildbot Nine has a plug-in interface that the Yocto
-            Project customizes using code from the <filename>yocto-autobuilder2</filename>
-            repository, adding its own console UI plugin. The resulting UI plug-in allows you to
-            visualize builds in a way suited to the project's needs.</para>
-
-        <para>A <filename>helper</filename> layer provides configuration and job management through
-            scripts found in the <filename>yocto-autobuilder-helper</filename> repository. The
-                <filename>helper</filename> layer contains the bulk of the build configuration
-            information and is release-specific, which makes it highly customizable on a per-project
-            basis. The layer is CI system-agnostic and contains a number of Helper scripts that can
-            generate build configurations from simple JSON files. <note>
-                <para>The project uses Buildbot for historical reasons but also because many of the
-                    project developers have knowledge of python. It is possible to use the outer
-                    layers from another Continuous Integration (CI) system such as <ulink
-                        url="https://en.wikipedia.org/wiki/Jenkins_(software)">Jenkins</ulink>
-                    instead of Buildbot. </para>
-            </note>
-        </para>
-
-        <para> The following figure shows the Yocto Project Autobuilder stack with a topology that
-            includes a controller and a cluster of workers: <imagedata
-                fileref="figures/ab-test-cluster.png" width="4.6in" depth="4.35in" align="center"
-                scalefit="1"/>
-        </para>
-    </section>
-
-    <section id='test-project-tests'>
-        <title>Yocto Project Tests - Types of Testing Overview</title>
-
-        <para>The Autobuilder tests different elements of the project by using thefollowing types of
-            tests: <itemizedlist>
-                <listitem>
-                    <para>
-                        <emphasis>Build Testing:</emphasis> Tests whether specific configurations
-                        build by varying <ulink url="&YOCTO_DOCS_REF_URL;#var-MACHINE"
-                                ><filename>MACHINE</filename></ulink>, <ulink
-                            url="&YOCTO_DOCS_REF_URL;#var-DISTRO"
-                            ><filename>DISTRO</filename></ulink>, other configuration options, and
-                        the specific target images being built (or world). Used to trigger builds of
-                        all the different test configurations on the Autobuilder. Builds usually
-                        cover many different targets for different architectures, machines, and
-                        distributions, as well as different configurations, such as different init
-                        systems. The Autobuilder tests literally hundreds of configurations and
-                        targets. <itemizedlist>
-                            <listitem>
-                                <para>
-                                    <emphasis>Sanity Checks During the Build Process:</emphasis>
-                                    Tests initiated through the <ulink
-                                        url="&YOCTO_DOCS_REF_URL;#ref-classes-insane"
-                                            ><filename>insane</filename></ulink> class. These checks
-                                    ensure the output of the builds are correct. For example, does
-                                    the ELF architecture in the generated binaries match the target
-                                    system? ARM binaries would not work in a MIPS system! </para>
-                            </listitem>
-                        </itemizedlist></para>
-                </listitem>
-                <listitem>
-                    <para>
-                        <emphasis>Build Performance Testing:</emphasis> Tests whether or not
-                        commonly used steps during builds work efficiently and avoid regressions.
-                        Tests to time commonly used usage scenarios are run through
-                            <filename>oe-build-perf-test</filename>. These tests are run on isolated
-                        machines so that the time measurements of the tests are accurate and no
-                        other processes interfere with the timing results. The project currently
-                        tests performance on two different distributions, Fedora and Ubuntu, to
-                        ensure we have no single point of failure and can ensure the different
-                        distros work effectively. </para>
-                </listitem>
-                <listitem>
-                    <para>
-                        <emphasis>eSDK Testing:</emphasis> Image tests initiated through the
-                        following command:
-                        <literallayout class="monospaced">
-     $ bitbake <replaceable>image</replaceable> -c testsdkext
-                    </literallayout>
-                        The tests utilize the <filename>testsdkext</filename> class and the
-                            <filename>do_testsdkext</filename> task. </para>
-                </listitem>
-                <listitem>
-                    <para>
-                        <emphasis>Feature Testing:</emphasis> Various scenario-based tests are run
-                        through the <ulink url="&YOCTO_DOCS_REF_URL;#testing-and-quality-assurance"
-                            >OpenEmbedded Self-Test</ulink> (oe-selftest). We test oe-selftest on
-                        each of the main distrubutions we support. </para>
-                </listitem>
-                <listitem>
-                    <para>
-                        <emphasis>Image Testing:</emphasis> Image tests initiated through the
-                        following command:
-                        <literallayout class="monospaced">
-     $ bitbake <replaceable>image</replaceable> -c testimage
-                    </literallayout>
-                        The tests utilize the <ulink
-                            url="&YOCTO_DOCS_REF_URL;#ref-classes-testimage*"
-                                ><filename>testimage*</filename></ulink> classes and the <ulink
-                            url="&YOCTO_DOCS_REF_URL;#ref-tasks-testimage"
-                                ><filename>do_testimage</filename></ulink> task. </para>
-                </listitem>
-                <listitem>
-                    <para>
-                        <emphasis>Layer Testing:</emphasis> The Autobuilder has the possibility to
-                        test whether specific layers work with the test of the system. The layers
-                        tested may be selected by members of the project. Some key community layers
-                        are also tested periodically.</para>
-                </listitem>
-                <listitem>
-                    <para>
-                        <emphasis>Package Testing:</emphasis> A Package Test (ptest) runs tests
-                        against packages built by the OpenEmbedded build system on the target
-                        machine. See the "<ulink
-                            url="&YOCTO_DOCS_DEV_URL;#testing-packages-with-ptest">Testing Packages
-                            With ptest</ulink>" section in the Yocto Project Development Tasks
-                        Manual and the "<ulink url="&YOCTO_WIKI_URL;/wiki/Ptest">Ptest</ulink>" Wiki
-                        page for more information on Ptest. </para>
-                </listitem>
-                <listitem>
-                    <para>
-                        <emphasis>SDK Testing:</emphasis> Image tests initiated through the
-                        following command:
-                        <literallayout class="monospaced">
-     $ bitbake <replaceable>image</replaceable> -c testsdk
-                    </literallayout>
-                        The tests utilize the <ulink url="&YOCTO_DOCS_REF_URL;#ref-classes-testsdk"
-                                ><filename>testsdk</filename></ulink> class and the
-                            <filename>do_testsdk</filename> task. </para>
-                </listitem>
-                <listitem>
-                    <para>
-                        <emphasis>Unit Testing:</emphasis> Unit tests on various components of the
-                        system run through <filename>oe-selftest</filename> and <ulink
-                            url="&YOCTO_DOCS_REF_URL;#testing-and-quality-assurance"
-                                ><filename>bitbake-selftest</filename></ulink>. </para>
-                </listitem>
-                <listitem>
-                    <para>
-                        <emphasis>Automatic Upgrade Helper:</emphasis> This target tests whether new
-                        versions of software are available and whether we can automatically upgrade
-                        to those new versions. If so, this target emails the maintainers with a
-                        patch to let them know this is possible.</para>
-                </listitem>
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='test-test-mapping'>
-        <title>How Tests Map to Areas of Code</title>
-
-        <para>
-            Tests map into the codebase as follows:
-            <itemizedlist>
-                <listitem><para>
-                        <emphasis>bitbake-selftest</emphasis>: </para>
-                    <para>These tests are self-contained and test BitBake as well as its APIs, which
-                        include the fetchers. The tests are located in
-                            <filename>bitbake/lib/*/tests</filename>. </para>
-                    <para>From within the BitBake repository, run the following:
-                        <literallayout class="monospaced">
-     $ bitbake-selftest
-                            </literallayout>
-                    </para>
-                    <para>To skip tests that access the Internet, use the
-                            <filename>BB_SKIP_NETTEST</filename> variable when running
-                        "bitbake-selftest" as follows:
-                        <literallayout class="monospaced">
-     $ BB_SKIP_NETTEST=yes bitbake-selftest
-                            </literallayout></para>
-                    <para>The default output is quiet and just prints a summary of what was run. To
-                        see more information, there is a verbose
-                        option:<literallayout class="monospaced">
-     $ bitbake-selftest -v
-                             </literallayout></para>
-                    <para>Use this option when you wish to skip tests that access the network, which
-                        are mostly necessary to test the fetcher modules. To specify individual test
-                        modules to run, append the test module name to the "bitbake-selftest"
-                        command. For example, to specify the tests for the bb.data.module, run:
-                        <literallayout class="monospaced">
-     $ bitbake-selftest bb.test.data.module
-                            </literallayout>You
-                        can also specify individual tests by defining the full name and module plus
-                        the class path of the test, for example:
-                        <literallayout class="monospaced">
-     $ bitbake-selftest bb.tests.data.TestOverrides.test_one_override
-                             </literallayout></para>
-                    <para>The tests are based on <ulink
-                            url="https://docs.python.org/3/library/unittest.html">Python
-                            unittest</ulink>. </para></listitem>
-                <listitem><para>
-                        <emphasis>oe-selftest</emphasis>: <itemizedlist>
-                            <listitem>
-                                <para>These tests use OE to test the workflows, which include
-                                    testing specific features, behaviors of tasks, and API unit
-                                    tests. </para>
-                            </listitem>
-                            <listitem>
-                                <para>The tests can take advantage of parallelism through the "-j"
-                                    option, which can specify a number of threads to spread the
-                                    tests across. Note that all tests from a given class of tests
-                                    will run in the same thread. To parallelize large numbers of
-                                    tests you can split the class into multiple units.</para>
-                            </listitem>
-                            <listitem>
-                                <para>The tests are based on Python unittest. </para>
-                            </listitem>
-                            <listitem>
-                                <para>The code for the tests resides in
-                                        <filename>meta/lib/oeqa/selftest/cases/</filename>. </para>
-                            </listitem>
-                            <listitem>
-                                <para>To run all the tests, enter the following command:
-                                    <literallayout class="monospaced">
-     $ oe-selftest -a
-                            </literallayout>
-                                </para>
-                            </listitem>
-                            <listitem>
-                                <para>To run a specific test, use the following command form where
-                                        <replaceable>testname</replaceable> is the name of the
-                                    specific test:
-                                    <literallayout class="monospaced">
-     $ oe-selftest -r <replaceable>testname</replaceable>
-                            </literallayout>
-                                    For example, the following command would run the tinfoil getVar
-                                    API
-                                    test:<literallayout class="monospaced">
-     $ oe-selftest -r tinfoil.TinfoilTests.test_getvar
-                            </literallayout>It
-                                    is also possible to run a set of tests. For example the
-                                    following command will run all of the tinfoil
-                                    tests:<literallayout class="monospaced">
-     $ oe-selftest -r  tinfoil
-                            </literallayout></para>
-                            </listitem>
-                        </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>testimage:</emphasis>
-                    <itemizedlist>
-                        <listitem><para>
-                            These tests build an image, boot it, and run tests
-                            against the image's content.
-                            </para></listitem>
-                        <listitem><para> The code for these tests resides in <filename>meta/lib/oeqa/runtime/cases/</filename>. </para></listitem>
-                        <listitem><para>
-                            You need to set the
-                            <ulink url='&YOCTO_DOCS_REF_URL;#var-IMAGE_CLASSES'><filename>IMAGE_CLASSES</filename></ulink>
-                            variable as follows:
-                            <literallayout class='monospaced'>
-     IMAGE_CLASSES += "testimage"
-                            </literallayout>
-                            </para></listitem>
-                        <listitem><para>
-                            Run the tests using the following command form:
-                            <literallayout class='monospaced'>
-     $ bitbake <replaceable>image</replaceable> -c testimage
-                            </literallayout>
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>testsdk:</emphasis>
-                    <itemizedlist>
-                        <listitem><para>These tests build an SDK, install it, and then run tests against that SDK. </para></listitem>
-                        <listitem><para>The code for these tests resides in <filename>meta/lib/oeqa/sdk/cases/</filename>. </para></listitem>
-                        <listitem><para>Run the test using the following command form:
-                                    <literallayout class="monospaced">
-     $ bitbake <replaceable>image</replaceable> -c testsdk
-                            </literallayout>
-                                </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-                <listitem><para>
-                    <emphasis>testsdk_ext:</emphasis>
-                    <itemizedlist>
-                        <listitem><para>These tests build an extended SDK (eSDK), install that eSDK, and run tests against the eSDK. </para></listitem>
-                        <listitem><para>The code for these tests resides in <filename>meta/lib/oeqa/esdk</filename>. </para></listitem>
-                        <listitem><para>To run the tests, use the following command form:
-                                    <literallayout class="monospaced">
-     $ bitbake <replaceable>image</replaceable> -c testsdkext
-                            </literallayout>
-                                </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-
-
-                <listitem><para>
-                    <emphasis>oe-build-perf-test:</emphasis>
-                    <itemizedlist>
-                        <listitem><para>These tests run through commonly used usage scenarios and measure the performance times. </para></listitem>
-                        <listitem><para>The code for these tests resides in <filename>meta/lib/oeqa/buildperf</filename>. </para></listitem>
-                        <listitem><para>To run the tests, use the following command form:
-                                    <literallayout class="monospaced">
-    $ oe-build-perf-test <replaceable>options</replaceable>
-                            </literallayout>The
-                                    command takes a number of options, such as where to place the
-                                    test results. The Autobuilder Helper Scripts include the
-                                        <filename>build-perf-test-wrapper</filename> script with
-                                    examples of how to use the oe-build-perf-test from the command
-                                    line.</para>
-                                <para>Use the <filename>oe-git-archive</filename> command to store
-                                    test results into a Git repository. </para>
-                                <para>Use the <filename>oe-build-perf-report</filename> command to
-                                    generate text reports and HTML reports with graphs of the
-                                    performance data. For examples, see <link linkend=""
-                                        >http://downloads.yoctoproject.org/releases/yocto/yocto-2.7/testresults/buildperf-centos7/perf-centos7.yoctoproject.org_warrior_20190414204758_0e39202.html</link>
-                                    and <link linkend=""
-                                        >http://downloads.yoctoproject.org/releases/yocto/yocto-2.7/testresults/buildperf-centos7/perf-centos7.yoctoproject.org_warrior_20190414204758_0e39202.txt</link>.</para></listitem>
-                            <listitem>
-                                <para>The tests are contained in
-                                        <filename>lib/oeqa/buildperf/test_basic.py</filename>.</para>
-                            </listitem>
-                    </itemizedlist>
-                    </para></listitem>
-
-
-
-
-            </itemizedlist>
-        </para>
-    </section>
-
-    <section id='test-examples'>
-        <title>Test Examples</title>
-
-        <para>This section provides example tests for each of the tests listed in the <link
-                linkend="test-test-mapping">How Tests Map to Areas of Code</link> section. </para>
-        <para>For oeqa tests, testcases for each area reside in the main test directory at
-                <filename>meta/lib/oeqa/selftest/cases</filename> directory.</para>
-        <para>For oe-selftest. bitbake testcases reside in the <filename>lib/bb/tests/</filename>
-            directory. </para>
-
-        <section id='bitbake-selftest-example'>
-            <title><filename>bitbake-selftest</filename></title>
-
-            <para>A simple test example from <filename>lib/bb/tests/data.py</filename> is:
-                <literallayout class="monospaced">
-     class DataExpansions(unittest.TestCase):
-         def setUp(self):
-             self.d = bb.data.init()
-             self.d["foo"] = "value_of_foo"
-             self.d["bar"] = "value_of_bar"       
-             self.d["value_of_foo"] = "value_of_'value_of_foo'"
-           
-          def test_one_var(self):
-             val =  self.d.expand("${foo}")
-             self.assertEqual(str(val), "value_of_foo")
-                     </literallayout>
-            </para>
-            <para>In this example, a <ulink url=""><filename>DataExpansions</filename></ulink> class
-                of tests is created, derived from standard python unittest. The class has a common
-                    <filename>setUp</filename> function which is shared by all the tests in the
-                class. A simple test is then added to test that when a variable is expanded, the
-                correct value is found.</para>
-            <para>Bitbake selftests are straightforward python unittest. Refer to the Python
-                unittest documentation for additional information on writing these tests at: <link
-                    linkend="">https://docs.python.org/3/library/unittest.html</link>.</para>
-        </section>
-
-        <section id='oe-selftest-example'>
-            <title><filename>oe-selftest</filename></title>
-
-            <para>These tests are more complex due to the setup required behind the scenes for full
-                builds. Rather than directly using Python's unittest, the code wraps most of the
-                standard objects. The tests can be simple, such as testing a command from within the
-                OE build environment using the following
-                example:<literallayout class="monospaced">
-     class BitbakeLayers(OESelftestTestCase):
-          def test_bitbakelayers_showcrossdepends(self):
-             result = runCmd('bitbake-layers show-cross-depends')       
-             self.assertTrue('aspell' in result.output, msg = "No dependencies 
-     were shown. bitbake-layers show-cross-depends output:
-           %s"% result.output)
-                   </literallayout></para>
-            <para>This example, taken from
-                    <filename>meta/lib/oeqa/selftest/cases/bblayers.py</filename>, creates a
-                testcase from the <ulink url=""><filename>OESelftestTestCase</filename></ulink>
-                class, derived from <filename>unittest.TestCase</filename>, which runs the
-                    <filename>bitbake-layers</filename> command and checks the output to ensure it
-                contains something we know should be here.</para>
-            <para>The <filename>oeqa.utils.commands</filename> module contains Helpers which can
-                assist with common tasks, including:<itemizedlist>
-                    <listitem>
-                        <para><emphasis>Obtaining the value of a bitbake variable:</emphasis> Use
-                                <filename>oeqa.utils.commands.get_bb_var()</filename> or use
-                                <filename>oeqa.utils.commands.get_bb_vars()</filename> for more than
-                            one variable</para>
-                    </listitem>
-                    <listitem>
-                        <para><emphasis>Running a bitbake invocation for a build:</emphasis> Use
-                                <filename>oeqa.utils.commands.bitbake()</filename></para>
-                    </listitem>
-                    <listitem>
-                        <para><emphasis>Running a command:</emphasis> Use
-                                <filename>oeqa.utils.commandsrunCmd()</filename></para>
-                    </listitem>
-                </itemizedlist></para>
-            <para>There is also a <filename>oeqa.utils.commands.runqemu()</filename> function for
-                launching the <filename>runqemu</filename> command for testing things within a
-                running, virtualized image.</para>
-            <para>You can run these tests in parallel. Parallelism works per test class, so tests
-                within a given test class should always run in the same build, while  tests in
-                different classes or modules may be split into different builds. There is no data
-                store available for these tests since the tests launch the
-                    <filename>bitbake</filename> command and exist outside of its context. As a
-                result, common bitbake library functions (bb.*) are also unavailable.</para>
-        </section>
-
-        <section id='testimage-example'>
-            <title><filename>testimage</filename></title>
-
-            <para>These tests are run once an image is up and running, either on target hardware or
-                under QEMU. As a result, they are assumed to be running in a target image
-                environment, as opposed to a host build environment. A simple example from
-                    <filename>meta/lib/oeqa/runtime/cases/python.py</filename> contains the
-                following:<literallayout class="monospaced">
-     class PythonTest(OERuntimeTestCase):
-         @OETestDepends(['ssh.SSHTest.test_ssh'])
-         @OEHasPackage(['python3-core'])
-         def test_python3(self):
-             cmd = "python3 -c \"import codecs; print(codecs.encode('Uryyb,
-     jbeyq', 'rot13'))\""
-             status, output = self.target.run(cmd)
-             msg = 'Exit status was not 0. Output: %s' % output
-             self.assertEqual(status, 0, msg=msg)
-                    </literallayout></para>
-            <para>In this example, the <ulink url=""><filename>OERuntimeTestCase</filename></ulink>
-                class wraps <filename>unittest.TestCase</filename>. Within the test,
-                    <filename>self.target</filename> represents the target system, where commands
-                can be run on it using the <filename>run()</filename> method. </para>
-            <para>To ensure certain test or package dependencies are met, you can use the
-                    <filename>OETestDepends</filename> and <filename>OEHasPackage</filename>
-                decorators. For example, the test in this example would only make sense if
-                python3-core is installed in the image.</para>
-        </section>
-
-        <section id='testsdk_ext-example'>
-            <title><filename>testsdk_ext</filename></title>
-
-            <para>These tests are run against built extensible SDKs (eSDKs). The tests can assume
-                that the eSDK environment has already been setup. An example from
-                    <filename>meta/lib/oeqa/sdk/cases/devtool.py</filename> contains the
-                following:<literallayout class="monospaced">
-     class DevtoolTest(OESDKExtTestCase):
-          @classmethod
-          def setUpClass(cls):
-          myapp_src = os.path.join(cls.tc.esdk_files_dir, "myapp")
-          cls.myapp_dst = os.path.join(cls.tc.sdk_dir, "myapp")
-          shutil.copytree(myapp_src, cls.myapp_dst)
-          subprocess.check_output(['git', 'init', '.'], cwd=cls.myapp_dst)
-          subprocess.check_output(['git', 'add', '.'], cwd=cls.myapp_dst)
-          subprocess.check_output(['git', 'commit', '-m', "'test commit'"], cwd=cls.myapp_dst)
-
-         @classmethod
-         def tearDownClass(cls):
-         shutil.rmtree(cls.myapp_dst)
-         def _test_devtool_build(self, directory):
-         self._run('devtool add myapp %s' % directory)
-         try:
-         self._run('devtool build myapp')
-         finally:
-         self._run('devtool reset myapp')
-         def test_devtool_build_make(self):
-         self._test_devtool_build(self.myapp_dst)
-                    </literallayout>In
-                this example, the <filename>devtool</filename> command is tested to see whether a
-                sample application can be built with the <filename>devtool build</filename> command
-                within the eSDK.</para>
-        </section>
-
-        <section id='testsdk-example'>
-            <title><filename>testsdk</filename></title>
-
-            <para>These tests are run against built SDKs. The tests can assume that an SDK has
-                already been extracted and its environment file has been sourced. A simple example
-                from <filename>meta/lib/oeqa/sdk/cases/python2.py</filename> contains the
-                following:<literallayout class="monospaced">
-     class Python3Test(OESDKTestCase):
-         def setUp(self):
-             if not (self.tc.hasHostPackage("nativesdk-python3-core") or
-                     self.tc.hasHostPackage("python3-core-native")):
-                 raise unittest.SkipTest("No python3 package in the SDK")
-
-         def test_python3(self):
-             cmd = "python3 -c \"import codecs; print(codecs.encode('Uryyb, jbeyq', 'rot13'))\""
-             output = self._run(cmd)
-             self.assertEqual(output, "Hello, world\n")
-                    </literallayout>In
-                this example, if nativesdk-python3-core has been installed into the SDK, the code
-                runs the python3 interpreter with a basic command to check it is working correctly.
-                The test would only run if python3 is installed in the SDK.</para>
-        </section>
-
-        <section id='oe-build-perf-test-example'>
-            <title><filename>oe-build-perf-test</filename></title>
-
-            <para>The performance tests usually measure how long operations take and the resource
-                utilisation as that happens. An example from
-                    <filename>meta/lib/oeqa/buildperf/test_basic.py</filename> contains the
-                following:<literallayout class="monospaced">
-     class Test3(BuildPerfTestCase):
-
-       def test3(self):
-           """Bitbake parsing (bitbake -p)"""
-           # Drop all caches and parse
-           self.rm_cache()
-           oe.path.remove(os.path.join(self.bb_vars['TMPDIR'], 'cache'), True)
-           self.measure_cmd_resources(['bitbake', '-p'], 'parse_1',
-                                      'bitbake -p (no caches)')
-           # Drop tmp/cache
-           oe.path.remove(os.path.join(self.bb_vars['TMPDIR'], 'cache'), True)
-           self.measure_cmd_resources(['bitbake', '-p'], 'parse_2',
-                                      'bitbake -p (no tmp/cache)')
-           # Parse with fully cached data
-           self.measure_cmd_resources(['bitbake', '-p'], 'parse_3',
-                                      'bitbake -p (cached)')
-                    </literallayout>This
-                example shows how three specific parsing timings are measured, with and without
-                various caches, to show how BitBake's parsing performance trends over time.</para>
-        </section>
-    </section>
-    <section id='test-writing-considerations'>
-        <title>Considerations When Writing Tests</title>
-        <para>When writing good tests, there are several things to keep in mind. Since things
-            running on the Autobuilder are accessed concurrently by multiple workers, consider the
-            following:</para>
-        <formalpara>
-            <title>Running "cleanall" is not permitted</title>
-            <para>This can delete files from DL_DIR which would potentially break other builds
-                running in parallel. If this is required, DL_DIR must be set to an isolated
-                directory.</para>
-        </formalpara>
-        <formalpara>
-            <title>Running "cleansstate" is not permitted</title>
-            <para>This can delete files from SSTATE_DIR which would potentially break other builds
-                running in parallel. If this is required, SSTATE_DIR must be set to an isolated
-                directory. Alternatively, you can use the "-f" option with the
-                    <filename>bitbake</filename> command to "taint" tasks by changing the sstate
-                checksums to ensure sstate cache items will not be reused.</para>
-        </formalpara>
-        <formalpara>
-            <title>Tests should not change the metadata</title>
-            <para>This is particularly true for oe-selftests since these can run in parallel and
-                changing metadata leads to changing checksums, which confuses BitBake while running
-                in parallel. If this is necessary, copy layers to a temporary location and modify
-                them. Some tests need to change metadata, such as the devtool tests. To prevent the
-                metadate from changes, set up temporary copies of that data first.</para>
-        </formalpara>
-    </section>
-
-
-
-
-
-
-
-
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-vim: expandtab tw=80 ts=4
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diff --git a/poky/documentation/test-manual/test-manual-test-process.rst b/poky/documentation/test-manual/test-manual-test-process.rst
index 96e71bf..b0817b0 100644
--- a/poky/documentation/test-manual/test-manual-test-process.rst
+++ b/poky/documentation/test-manual/test-manual-test-process.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ***********************************
 Project Testing and Release Process
diff --git a/poky/documentation/test-manual/test-manual-test-process.xml b/poky/documentation/test-manual/test-manual-test-process.xml
deleted file mode 100644
index 6e2157c..0000000
--- a/poky/documentation/test-manual/test-manual-test-process.xml
+++ /dev/null
@@ -1,110 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='test-manual-test-process'>
-
-<title>Project Testing and Release Process</title>
-    <section id='test-daily-devel'>
-        <title>Day to Day Development</title>
-
-        <para>This section details how the project tests changes, through automation on the
-            Autobuilder or with the assistance of QA teams, through to making releases.</para>
-
-        <para>The project aims to test changes against our test matrix before those changes are
-            merged into the master branch. As such, changes are queued up in batches either in the
-                <filename>master-next</filename> branch in the main trees, or in user trees such as
-                <filename>ross/mut</filename> in <filename>poky-contrib</filename> (Ross Burton
-            helps review and test patches and this is his testing tree).</para>
-        <para>We have two broad categories of test builds, including "full" and "quick". On the
-            Autobuilder, these can be seen as "a-quick" and "a-full", simply for ease of sorting in
-            the UI. Use our Autobuilder console view to see where me manage most test-related items,
-            available at: <link linkend=""
-                >https://autobuilder.yoctoproject.org/typhoon/#/console</link>.</para>
-        <para>Builds are triggered manually when the test branches are ready. The builds are
-            monitored by the SWAT team. For additional information, see <link linkend=""
-                >https://wiki.yoctoproject.org/wiki/Yocto_Build_Failure_Swat_Team</link>. If
-            successful, the changes would usually be merged to the <filename>master</filename>
-            branch. If not successful, someone would respond to the changes on the mailing list
-            explaining that there was a failure in testing. The choice of quick or full would depend
-            on the type of changes and the speed with which the result was required.</para>
-        <para>The Autobuilder does build the <filename>master</filename> branch once daily for
-            several reasons, in particular, to ensure the current <filename>master</filename> branch
-            does build, but also to keep <filename>yocto-testresults</filename> (<link linkend=""
-                >http://git.yoctoproject.org/cgit.cgi/yocto-testresults/</link>), buildhistory
-                (<link linkend="">http://git.yoctoproject.org/cgit.cgi/poky-buildhistory/</link>),
-            and our sstate up to date. On the weekend, there is a master-next build instead to
-            ensure the test results are updated for the less frequently run targets.</para>
-        <para>Performance builds (buildperf-* targets in the console) are triggered separately every
-            six hours and automatically push their results to the buildstats repository at: <link
-                linkend="">http://git.yoctoproject.org/cgit.cgi/yocto-buildstats/</link>. </para>
-        <para>The 'quick' targets have been selected to be the ones which catch the most failures or
-            give the most valuable data. We run 'fast' ptests in this case for example but not the
-            ones which take a long time. The quick target doesn't include *-lsb builds for all
-            architectures, some world builds and doesn't trigger performance tests or ltp testing.
-            The full build includes all these things and is slower but more comprehensive.</para>
-    </section>
-
-    <section id='test-yocto-project-autobuilder-overview'>
-        <title>Release Builds</title>
-
-        <para>The project typically has two major releases a year with a six month cadence in April
-            and October. Between these there would be a number of milestone releases (usually four)
-            with the final one being stablization only along with point releases of our stable
-            branches.</para>
-        <para>The build and release process for these project releases is similar to that in <link
-                linkend="test-daily-devel">Day to Day Development</link>, in that the a-full target
-            of the Autobuilder is used but in addition the form is configured to generate and
-            publish artefacts and the milestone number, version, release candidate number and other
-            information is entered. The box to "generate an email to QA"is also checked.</para>
-        <para>When the build completes, an email is sent out using the send-qa-email script in the
-                <filename>yocto-autobuilder-helper</filename> repository to the list of people
-            configured for that release. Release builds are placed into a directory in <link
-                linkend="">https://autobuilder.yocto.io/pub/releases</link> on the Autobuilder which
-            is included in the email. The process from here is more manual and control is
-            effectively passed to release engineering. The next steps include:<itemizedlist>
-                <listitem>
-                    <para>QA teams respond to the email saying which tests they plan to run and when
-                        the results will be available.</para>
-                </listitem>
-                <listitem>
-                    <para>QA teams run their tests and share their results in the yocto-
-                        testresults-contrib repository, along with a summary of their findings.
-                    </para>
-                </listitem>
-                <listitem>
-                    <para>Release engineering prepare the release as per their process. </para>
-                </listitem>
-                <listitem>
-                    <para>Test results from the QA teams are included into the release in separate
-                        directories and also uploaded to the yocto-testresults repository alongside
-                        the other test results for the given revision.</para>
-                </listitem>
-                <listitem>
-                    <para>The QA report in the final release is regenerated using resulttool to
-                        include the new test results and the test summaries from the teams (as
-                        headers to the generated report).</para>
-                </listitem>
-                <listitem>
-                    <para>The release is checked against the release checklist and release readiness
-                        criteria.</para>
-                </listitem>
-                <listitem>
-                    <para>A final decision on whether to release is made by the YP TSC who have
-                        final oversight on release readiness.</para>
-                </listitem>
-            </itemizedlist></para>
-    </section>
-
-
-
-
-
-
-
-
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/test-manual/test-manual-understand-autobuilder.rst b/poky/documentation/test-manual/test-manual-understand-autobuilder.rst
index 2fcae50..de26777 100644
--- a/poky/documentation/test-manual/test-manual-understand-autobuilder.rst
+++ b/poky/documentation/test-manual/test-manual-understand-autobuilder.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 *******************************************
 Understanding the Yocto Project Autobuilder
diff --git a/poky/documentation/test-manual/test-manual-understand-autobuilder.xml b/poky/documentation/test-manual/test-manual-understand-autobuilder.xml
deleted file mode 100644
index 8600367..0000000
--- a/poky/documentation/test-manual/test-manual-understand-autobuilder.xml
+++ /dev/null
@@ -1,314 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='test-manual-understand-autobuilder'>
-
-<title>Understanding the Yocto Project Autobuilder</title>
-    <section>
-        <title>Execution Flow within the Autobuilder</title>
-        <para>The "a-full" and "a-quick" targets are the usual entry points into the Autobuilder and
-            it makes sense to follow the process through the system starting there. This is best
-            visualised from the Autobuilder Console view (<link linkend=""
-                >https://autobuilder.yoctoproject.org/typhoon/#/console</link>). </para>
-        <para>Each item along the top of that view represents some "target build" and these targets
-            are all run in parallel. The 'full' build will trigger the majority of them, the "quick"
-            build will trigger some subset of them. The Autobuilder effectively runs whichever
-            configuration is defined for each of those targets on a seperate buildbot worker. To
-            understand the configuration, you need to look at the entry on
-                <filename>config.json</filename> file within the
-                <filename>yocto-autobuilder-helper</filename> repository. The targets are defined in
-            the ‘overrides' section, a quick example could be qemux86-64 which looks
-            like:<literallayout class="monospaced">
-     "qemux86-64" : {
-         "MACHINE" : "qemux86-64",
-         "TEMPLATE" : "arch-qemu",
-         "step1" : {
-             "extravars" : [
-                  "IMAGE_FSTYPES_append = ' wic wic.bmap'"
-             ]
-         }
-     },
-                    </literallayout>And
-            to expand that, you need the "arch-qemu" entry from the "templates" section, which looks
-            like:<literallayout class="monospaced">
-     "arch-qemu" : {
-         "BUILDINFO" : true,
-         "BUILDHISTORY" : true,
-         "step1" : {
-             "BBTARGETS" : "core-image-sato core-image-sato-dev core-image-sato-sdk core-image-minimal core-image-minimal-dev core-image-sato:do_populate_sdk",
-             "SANITYTARGETS" : "core-image-minimal:do_testimage core-image-sato:do_testimage core-image-sato-sdk:do_testimage core-image-sato:do_testsdk"
-         },
-         "step2" : {
-             "SDKMACHINE" : "x86_64",
-             "BBTARGETS" : "core-image-sato:do_populate_sdk core-image-minimal:do_populate_sdk_ext core-image-sato:do_populate_sdk_ext",
-             "SANITYTARGETS" : "core-image-sato:do_testsdk core-image-minimal:do_testsdkext core-image-sato:do_testsdkext"
-         },
-         "step3" : {
-             "BUILDHISTORY" : false,
-             "EXTRACMDS" : ["${SCRIPTSDIR}/checkvnc; DISPLAY=:1 oe-selftest ${HELPERSTMACHTARGS} -j 15"],
-             "ADDLAYER" : ["${BUILDDIR}/../meta-selftest"]
-         }
-     },
-                    </literallayout>Combining
-            these two entries you can see that "qemux86-64" is a three step build where the
-                <filename>bitbake BBTARGETS</filename> would be run, then <filename>bitbake
-                SANITYTARGETS</filename> for each step; all for
-                <filename>MACHINE="qemx86-64"</filename> but with differing SDKMACHINE settings. In
-            step 1 an extra variable is added to the <filename>auto.conf</filename> file to enable
-            wic image generation.</para>
-        <para>While not every detail of this is covered here, you can see how the templating
-            mechanism allows quite complex configurations to be built up yet allows duplication and
-            repetition to be kept to a minimum.</para>
-        <para>The different build targets are designed to allow for parallelisation, so different
-            machines are usually built in parallel, operations using the same machine and metadata
-            are built sequentially, with the aim of trying to optimise build efficiency as much as
-            possible.</para>
-        <para>The <filename>config.json</filename> file is processed by the scripts in the Helper
-            repository in the <filename>scripts</filename> directory. The following  section details
-            how this works.</para>
-    </section>
-
-    <section id='test-autobuilder-target-exec-overview'>
-        <title>Autobuilder Target Execution Overview</title>
-
-        <para>For each given target in a build, the Autobuilder executes several steps. These are
-            configured in <filename>yocto-autobuilder2/builders.py</filename> and roughly consist
-            of: <orderedlist>
-                <listitem id='test-list-tgt-exec-clobberdir'>
-                    <para><emphasis>Run <filename>clobberdir</filename></emphasis></para>
-                    <para>This cleans out any previous build. Old builds are left around to allow
-                        easier debugging of failed builds. For additional information, see <link
-                            linkend="test-clobberdir"><filename>clobberdir</filename></link>.</para>
-                </listitem>
-                <listitem>
-                    <para><emphasis>Obtain yocto-autobuilder-helper</emphasis></para>
-                    <para>This step clones the <filename>yocto-autobuilder-helper</filename> git
-                        repository. This is necessary to prevent the requirement to maintain all the
-                        release or project-specific code within Buildbot. The branch chosen matches
-                        the release being built so we can support older releases and still make
-                        changes in newer ones.</para>
-                </listitem>
-                <listitem>
-                    <para><emphasis>Write layerinfo.json</emphasis></para>
-                    <para>This transfers data in the Buildbot UI when the build was configured to
-                        the Helper.</para>
-                </listitem>
-                <listitem>
-                    <para><emphasis>Call scripts/shared-repo-unpack</emphasis></para>
-                    <para>This is a call into the Helper scripts to set up a checkout of all the
-                        pieces this build might need. It might clone the BitBake repository and the
-                        OpenEmbedded-Core repository. It may clone the Poky repository, as well as
-                        additional layers. It will use the data from the
-                            <filename>layerinfo.json</filename> file to help understand the
-                        configuration. It will also use a local cache of repositories to speed up
-                        the clone checkouts. For additional information, see <link
-                            linkend="test-autobuilder-clone-cache">Autobuilder Clone
-                        Cache</link>.</para>
-                    <para>This step has two possible modes of operation. If the build is part of a
-                        parent build, its possible that all the repositories needed may already be
-                        available, ready in a pre-prepared directory. An "a-quick" or "a-full" build
-                        would prepare this before starting the other sub-target builds. This is done
-                        for two reasons:<itemizedlist>
-                            <listitem>
-                                <para>the upstream may change during a build, for example, from a
-                                    forced push and this ensures we have matching content for the
-                                    whole build</para>
-                            </listitem>
-                            <listitem>
-                                <para>if 15 Workers all tried to pull the same data from the same
-                                    repos, we can hit resource limits on upstream servers as they
-                                    can think they are under some kind of network attack</para>
-                            </listitem>
-                        </itemizedlist>This pre-prepared directory is shared among the Workers over
-                        NFS. If the build is an individual build and there is no "shared" directory
-                        available, it would clone from the cache and the upstreams as necessary.
-                        This is considered the fallback mode.</para>
-                </listitem>
-                <listitem>
-                    <para><emphasis>Call scripts/run-config</emphasis></para>
-                    <para>This is another call into the Helper scripts where its expected that the
-                        main functionality of this target will be executed.</para>
-                </listitem>
-            </orderedlist></para>
-    </section>
-    <section id='test-autobuilder-tech'>
-        <title>Autobuilder Technology</title>
-        <para>The Autobuilder has Yocto Project-specific functionality to allow builds to operate
-            with increased efficiency and speed.</para>
-        <section id='test-clobberdir'>
-            <title>clobberdir</title>
-            <para>When deleting files, the Autobuilder uses <filename>clobberdir</filename>, which
-                is a special script that moves files to a special location, rather than deleting
-                them. Files in this location are deleted by an <filename>rm</filename> command,
-                which is run under <filename>ionice -c 3</filename>. For example, the deletion only
-                happens when there is idle IO capacity on the Worker. The Autobuilder Worker Janitor
-                runs this deletion. See <link linkend="test-autobuilder-worker-janitor">Autobuilder
-                    Worker Janitor</link>.</para>
-        </section>
-        <section id='test-autobuilder-clone-cache'>
-            <title>Autobuilder Clone Cache</title>
-            <para>Cloning repositories from scratch each time they are required was slow on the
-                Autobuilder. We therefore have a stash of commonly used repositories pre-cloned on
-                the Workers. Data is fetched from these during clones first, then "topped up" with
-                later revisions from any upstream when necesary. The cache is maintained by the
-                Autobuilder Worker Janitor. See <link linkend="test-autobuilder-worker-janitor"
-                    >Autobuilder Worker Janitor</link>.</para>
-        </section>
-        <section id='test-autobuilder-worker-janitor'>
-            <title>Autobuilder Worker Janitor</title>
-            <para>This is a process running on each Worker that performs two basic operations,
-                including background file deletion at IO idle (see <link
-                    linkend="test-list-tgt-exec-clobberdir">Target Execution: clobberdir</link>) and
-                maintainenance of a cache of cloned repositories to improve the speed the system can
-                checkout repositories.</para>
-        </section>
-        <section id='test-shared-dl-dir'>
-            <title>Shared DL_DIR</title>
-            <para>The Workers are all connected over NFS which allows DL_DIR to be shared between
-                them. This reduces network accesses from the system and allows the build to be sped
-                up. Usage of the directory within the build system is designed to be able to be
-                shared over NFS.</para>
-        </section>
-        <section id='test-shared-sstate-cache'>
-            <title>Shared SSTATE_DIR</title>
-            <para>The Workers are all connected over NFS which allows the
-                    <filename>sstate</filename> directory to be shared between them. This means once
-                a Worker has built an artefact, all the others can benefit from it. Usage of the
-                directory within the directory is designed for sharing over NFS.</para>
-        </section>
-        <section id='test-resulttool'>
-            <title>Resulttool</title>
-            <para>All of the different tests run as part of the build generate output into
-                    <filename>testresults.json</filename> files. This allows us to determine which
-                tests ran in a given build and their status. Additional information, such as failure
-                logs or the time taken to run the tests, may also be included.</para>
-            <para>Resulttool is part of OpenEmbedded-Core and is used to manipulate these json
-                results files. It has the ability to merge files together, display reports of the
-                test results and compare different result files.</para>
-            <para>For details, see <link linkend=""
-                    >https://wiki.yoctoproject.org/wiki/Resulttool</link>.</para>
-        </section>
-    </section>
-    <section id='test-run-config-tgt-execution'>
-        <title>run-config Target Execution</title>
-        <para>The <filename>scripts/run-config</filename> execution is where most of the work within
-            the Autobuilder happens. It runs through a number of steps; the first are general setup
-            steps that are run once and include:<orderedlist>
-                <listitem>
-                    <para>Set up any <filename>buildtools-tarball</filename> if configured.</para>
-                </listitem>
-                <listitem>
-                    <para>Call "buildhistory-init" if buildhistory is configured.</para>
-                </listitem>
-            </orderedlist></para>
-        <para>For each step that is configured in <filename>config.json</filename>, it will perform
-            the following:</para>
-        <para>
-            <remark>## WRITER's question: What does "logging in as stepXa" and others refer to
-                below? ##</remark>
-            <orderedlist>
-                <listitem id="test-run-config-add-layers-step">
-                    <para dir="ltr">Add any layers that are specified using the
-                            <filename>bitbake-layers add-layer</filename> command (logging as
-                        stepXa)</para>
-                </listitem>
-                <listitem>
-                    <para dir="ltr">Call the <filename>scripts/setup-config</filename> script to
-                        generate the necessary <filename>auto.conf</filename> configuration file for
-                        the build</para>
-                </listitem>
-                <listitem>
-                    <para dir="ltr">Run the <filename>bitbake BBTARGETS</filename> command (logging
-                        as stepXb)</para>
-                </listitem>
-                <listitem>
-                    <para dir="ltr">Run the <filename>bitbake SANITYTARGETS</filename> command
-                        (logging as stepXc)</para>
-                </listitem>
-                <listitem>
-                    <para dir="ltr">Run the <filename>EXTRACMDS</filename> command, which are run
-                        within the BitBake build environment (logging as stepXd)</para>
-                </listitem>
-                <listitem>
-                    <para dir="ltr">Run the <filename>EXTRAPLAINCMDS</filename> command(s), which
-                        are run outside the BitBake build environment (logging as stepXd)</para>
-                </listitem>
-                <listitem>
-                    <para dir="ltr">Remove any layers added in <link
-                            linkend="test-run-config-add-layers-step">step 1</link> using the
-                            <filename>bitbake-layers remove-layer</filename> command (logging as
-                        stepXa)</para>
-                </listitem>
-            </orderedlist>
-        </para>
-        <para>Once the execution steps above complete, <filename>run-config</filename> executes a
-            set of post-build steps, including:<orderedlist>
-                <listitem>
-                    <para dir="ltr">Call <filename>scripts/publish-artifacts</filename> to collect
-                        any output which is to be saved from the build.</para>
-                </listitem>
-                <listitem>
-                    <para dir="ltr">Call <filename>scripts/collect-results</filename> to collect any
-                        test results to be saved from the build.</para>
-                </listitem>
-                <listitem>
-                    <para dir="ltr">Call <filename>scripts/upload-error-reports</filename> to send
-                        any error reports generated to the remote server.</para>
-                </listitem>
-                <listitem>
-                    <para dir="ltr">Cleanup the build directory using <link
-                            linkend="test-clobberdir"><filename>clobberdir</filename></link> if the
-                        build was successful, else rename it to "build-renamed" for potential future
-                        debugging.</para>
-                </listitem>
-            </orderedlist></para>
-    </section>
-    <section id='test-deploying-yp-autobuilder'>
-        <title>Deploying Yocto Autobuilder</title>
-        <para>The most up to date information about how to setup and deploy your own Autbuilder can
-            be found in README.md in the <filename>yocto-autobuilder2</filename> repository.</para>
-        <para>We hope that people can use the <filename>yocto-autobuilder2</filename> code directly
-            but it is inevitable that users will end up needing to heavily customise the
-                <filename>yocto-autobuilder-helper</filename> repository, particularly the
-                <filename>config.json</filename> file as they will want to define their own test
-            matrix.</para>
-        <para>The Autobuilder supports wo customization options: <itemizedlist>
-                <listitem>
-                    <para>variable substitution</para>
-                </listitem>
-                <listitem>
-                    <para>overlaying configuration files</para>
-                </listitem>
-            </itemizedlist>The standard <filename>config.json</filename> minimally attempts to allow
-            substitution of the paths. The Helper script repository includes a
-                <filename>local-example.json</filename> file to show how you could override these
-            from a separate configuration file. Pass the following into the environment of the
-            Autobuilder:<literallayout class="monospaced">
-     $ ABHELPER_JSON="config.json local-example.json"
-                    </literallayout>As
-            another example, you could also pass the following into the
-            environment:<literallayout class="monospaced">
-     $ ABHELPER_JSON="config.json <replaceable>/some/location/</replaceable>local.json"
-                    </literallayout>One
-            issue users often run into is validation of the <filename>config.json</filename> files.
-            A tip for minimizing issues from invalid json files is to use a Git
-                <filename>pre-commit-hook.sh</filename> script to verify the JSON file before
-            committing it. Create a symbolic link as
-            follows:<literallayout class="monospaced">
-     $ ln -s ../../scripts/pre-commit-hook.sh .git/hooks/pre-commit
-                    </literallayout></para>
-    </section>
-
-
-
-
-
-
-
-
-</chapter>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/test-manual/test-manual.rst b/poky/documentation/test-manual/test-manual.rst
index bd5b1b0..2891f06 100644
--- a/poky/documentation/test-manual/test-manual.rst
+++ b/poky/documentation/test-manual/test-manual.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 =====================================
 Yocto Project Test Environment Manual
diff --git a/poky/documentation/test-manual/test-manual.xml b/poky/documentation/test-manual/test-manual.xml
deleted file mode 100755
index d454566..0000000
--- a/poky/documentation/test-manual/test-manual.xml
+++ /dev/null
@@ -1,104 +0,0 @@
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<book id='test-manual' lang='en'
-      xmlns:xi="http://www.w3.org/2003/XInclude"
-      xmlns="http://docbook.org/ns/docbook"
-      >
-    <bookinfo>
-
-        <mediaobject>
-            <imageobject>
-                <imagedata fileref='figures/test-manual-title.png'
-                    format='SVG'
-                    align='left' scalefit='1' width='100%'/>
-            </imageobject>
-        </mediaobject>
-
-        <title>
-            Yocto Project Test Environment Manual
-        </title>
-
-        <authorgroup>
-            <author>
-                <affiliation>
-                    <orgname>&ORGNAME;</orgname>
-                </affiliation>
-                <email>&ORGEMAIL;</email>
-            </author>
-        </authorgroup>
-
-        <revhistory>
-            <revision>
-                <revnumber>3.1.1</revnumber>
-                <date>TBD</date>
-                <revremark>DRAFT - Work-in-Progress - posted June 16, 2020</revremark>
-            </revision>
-        </revhistory>
-
-    <copyright>
-     <year>&COPYRIGHT_YEAR;</year>
-      <holder>Linux Foundation</holder>
-    </copyright>
-
-    <legalnotice>
-      <para>
-          Permission is granted to copy, distribute and/or modify this document under
-          the terms of the <ulink type="http" url="http://creativecommons.org/licenses/by-sa/2.0/uk/">
-          Creative Commons Attribution-Share Alike 2.0 UK: England &amp; Wales</ulink> as published by
-          Creative Commons.
-      </para>
-           <note><title>Manual Notes</title>
-               <itemizedlist>
-                   <listitem><para>
-                       This version of the
-                       <emphasis>Yocto Project Test Environment Manual</emphasis>
-                       is for the &YOCTO_DOC_VERSION; release of the
-                       Yocto Project.
-                       To be sure you have the latest version of the manual
-                       for this release, go to the
-                       <ulink url='&YOCTO_HOME_URL;/documentation'>Yocto Project documentation page</ulink>
-                       and select the manual from that site.
-                       Manuals from the site are more up-to-date than manuals
-                       derived from the Yocto Project released TAR files.
-                       </para></listitem>
-                   <listitem><para>
-                       If you located this manual through a web search, the
-                       version of the manual might not be the one you want
-                       (e.g. the search might have returned a manual much
-                       older than the Yocto Project version with which you
-                       are working).
-                       You can see all Yocto Project major releases by
-                       visiting the
-                       <ulink url='&YOCTO_WIKI_URL;/wiki/Releases'>Releases</ulink>
-                       page.
-                       If you need a version of this manual for a different
-                       Yocto Project release, visit the
-                       <ulink url='&YOCTO_HOME_URL;/documentation'>Yocto Project documentation page</ulink>
-                       and select the manual set by using the
-                       "ACTIVE RELEASES DOCUMENTATION" or "DOCUMENTS ARCHIVE"
-                       pull-down menus.
-                       </para></listitem>
-                   <listitem><para>
-                       To report any inaccuracies or problems with this
-                       manual, send an email to the Yocto Project
-                       discussion group at
-                       <filename>yocto@yoctoproject.com</filename> or log into
-                       the freenode <filename>#yocto</filename> channel.
-                       </para></listitem>
-               </itemizedlist>
-           </note>
-    </legalnotice>
-
-    </bookinfo>
-
-    <xi:include href="test-manual-intro.xml"/>
-    <xi:include href="test-manual-test-process.xml"/>
-    <xi:include href="test-manual-understand-autobuilder.xml"/>
-   
-</book>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/toaster-manual/history.rst b/poky/documentation/toaster-manual/history.rst
index 027b343..05b63e5 100644
--- a/poky/documentation/toaster-manual/history.rst
+++ b/poky/documentation/toaster-manual/history.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ***********************
 Manual Revision History
diff --git a/poky/documentation/toaster-manual/toaster-manual-customization.xsl b/poky/documentation/toaster-manual/toaster-manual-customization.xsl
deleted file mode 100644
index 3a9b22e..0000000
--- a/poky/documentation/toaster-manual/toaster-manual-customization.xsl
+++ /dev/null
@@ -1,30 +0,0 @@
-<?xml version='1.0'?>
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
-
-  <xsl:import href="http://downloads.yoctoproject.org/mirror/docbook-mirror/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-<!--
-
-  <xsl:import href="../template/1.76.1/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
-
-  <xsl:import href="http://docbook.sourceforge.net/release/xsl/1.76.1/xhtml/docbook.xsl" />
-
--->
-
-  <xsl:include href="../template/permalinks.xsl"/>
-  <xsl:include href="../template/section.title.xsl"/>
-  <xsl:include href="../template/component.title.xsl"/>
-  <xsl:include href="../template/division.title.xsl"/>
-  <xsl:include href="../template/formal.object.heading.xsl"/>
-  <xsl:include href="../template/embedded_video.xsl"/>
-
-  <xsl:param name="html.stylesheet" select="'toaster-manual-style.css'" />
-  <xsl:param name="chapter.autolabel" select="1" />
-  <xsl:param name="appendix.autolabel" select="A" />
-  <xsl:param name="section.autolabel" select="1" />
-  <xsl:param name="section.label.includes.component.label" select="1" />
-  <xsl:param name="generate.id.attributes" select="1" />
-
-</xsl:stylesheet>
diff --git a/poky/documentation/toaster-manual/toaster-manual-intro.rst b/poky/documentation/toaster-manual/toaster-manual-intro.rst
index 0b7cd41..408c6fa 100644
--- a/poky/documentation/toaster-manual/toaster-manual-intro.rst
+++ b/poky/documentation/toaster-manual/toaster-manual-intro.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ************
 Introduction
diff --git a/poky/documentation/toaster-manual/toaster-manual-intro.xml b/poky/documentation/toaster-manual/toaster-manual-intro.xml
deleted file mode 100644
index 6ee9ec7..0000000
--- a/poky/documentation/toaster-manual/toaster-manual-intro.xml
+++ /dev/null
@@ -1,165 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='toaster-manual-intro'>
-<title>Introduction</title>
-
-    <para>
-        Toaster is a web interface to the Yocto Project's
-        <ulink url='&YOCTO_DOCS_REF_URL;#build-system-term'>OpenEmbedded build system</ulink>.
-        The interface enables you to configure and run your builds.
-        Information about builds is collected and stored in a database.
-        You can use Toaster to configure and start builds on multiple
-        remote build servers.
-    </para>
-
-    <section id='intro-features'>
-        <title>Toaster Features</title>
-
-        <para>
-            Toaster allows you to configure and run builds, and it
-            provides extensive information about the build process.
-            <itemizedlist>
-                <listitem><para id='toaster-build-features'>
-                    <emphasis>Configure and Run Builds:</emphasis>
-                    You can use the Toaster web interface to configure and
-                    start your builds.
-                    Builds started using the Toaster web interface are
-                    organized into projects.
-                    When you create a project, you are asked to select a
-                    release, or version of the build system you want to
-                    use for the project builds.
-                    As shipped, Toaster supports Yocto Project releases 1.8
-                    and beyond.
-                    With the Toaster web interface, you can:
-                    <itemizedlist>
-                        <listitem><para>
-                            Browse layers listed in the various
-                            <link linkend='layer-source'>layer sources</link>
-                            that are available in your project (e.g. the
-                            OpenEmbedded Layer Index at
-                            <ulink url='http://layers.openembedded.org/layerindex/'></ulink>).
-                            </para></listitem>
-                        <listitem><para>
-                            Browse images, recipes, and machines provided by
-                            those layers.
-                            </para></listitem>
-                        <listitem><para>
-                            Import your own layers for building.
-                            </para></listitem>
-                        <listitem><para>
-                            Add and remove layers from your configuration.
-                            </para></listitem>
-                        <listitem><para>
-                            Set configuration variables.
-                            </para></listitem>
-                        <listitem><para>
-                            Select a target or multiple targets to build.
-                            </para></listitem>
-                        <listitem><para>
-                            Start your builds.
-                            </para></listitem>
-                    </itemizedlist>
-                    Toaster also allows you to configure and run your builds
-                    from the command line, and switch between the command line and
-                    the web interface at any time.
-                    Builds started from  the command line appear within a special
-                    Toaster project called "Command line builds".
-                    </para></listitem>
-                <listitem><para id='toaster-analysis-features'>
-                    <emphasis>Information About the Build Process:</emphasis>
-                    Toaster also records extensive information about your builds.
-                    Toaster collects data for builds you start from the web
-                    interface and from the command line as long as Toaster
-                    is running.
-                    <note>
-                        You must start Toaster before the build or it will not
-                        collect build data.
-                    </note></para>
-                    <para>With Toaster you can:
-                    <itemizedlist>
-                        <listitem><para>
-                            See what was built (recipes and packages) and what
-                            packages were installed into your final image.
-                            </para></listitem>
-                        <listitem><para>
-                            Browse the directory structure of your image.
-                            </para></listitem>
-                        <listitem><para>
-                            See the value of all variables in your build
-                            configuration, and which files set each value.
-                            </para></listitem>
-                        <listitem><para>
-                            Examine error, warning, and trace messages to aid
-                            in debugging.
-                            </para></listitem>
-                        <listitem><para>
-                            See information about the BitBake tasks executed
-                            and reused during your build, including those that
-                            used shared state.
-                            </para></listitem>
-                        <listitem><para>
-                            See dependency relationships between recipes,
-                            packages, and tasks.
-                            </para></listitem>
-                        <listitem><para>
-                            See performance information such as build time,
-                            task time, CPU usage, and disk I/O.
-                            </para></listitem>
-                    </itemizedlist>
-                    </para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>
-            For an overview of Toaster shipped with the Yocto Project &DISTRO;
-            Release, see the
-            "<ulink url='https://youtu.be/BlXdOYLgPxA'>Toaster - Yocto Project 2.2</ulink>"
-            video.
-        </para>
-    </section>
-
-    <section id='toaster-installation-options'>
-        <title>Installation Options</title>
-
-        <para>
-            You can set Toaster up to run as a local instance or as a shared
-            hosted service.
-        </para>
-
-        <para>
-            When Toaster is set up as a local instance, all the components
-            reside on a single build host.
-            Fundamentally, a local instance of Toaster is suited for a single
-            user developing on a single build host.
-        </para>
-
-        <para>
-            <imagedata fileref="figures/simple-configuration.png" align="center" width="6in" depth="1.5in" />
-        </para>
-
-        <para>
-            Toaster as a hosted service is suited for multiple users
-            developing across several build hosts.
-            When Toaster is set up as a hosted service, its components can
-            be spread across several machines:
-        </para>
-
-        <para>
-            <imagedata fileref="figures/hosted-service.png" align="center" width="6in" depth="3.5in" />
-        </para>
-    </section>
-
-<!--THIS EXTRA INFORMATION PROBABLY WILL GO AWAY
-        For additional information on installing and running Toaster, see the
-        "<ulink url='https://wiki.yoctoproject.org/wiki/Toaster#Installation_and_Running'>Installation and Running</ulink>"
-        section of the "Toaster" wiki page.
-        For complete information on the API and its search operation
-        URI, parameters, and responses, see the
-        <ulink url='https://wiki.yoctoproject.org/wiki/REST_API_Contracts'>REST API Contracts</ulink>
-        Wiki page.
-    </para>
--->
-</chapter>
diff --git a/poky/documentation/toaster-manual/toaster-manual-reference.rst b/poky/documentation/toaster-manual/toaster-manual-reference.rst
index e95536e..e5e3531 100644
--- a/poky/documentation/toaster-manual/toaster-manual-reference.rst
+++ b/poky/documentation/toaster-manual/toaster-manual-reference.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 **********************
 Concepts and Reference
diff --git a/poky/documentation/toaster-manual/toaster-manual-reference.xml b/poky/documentation/toaster-manual/toaster-manual-reference.xml
deleted file mode 100644
index ae267f4..0000000
--- a/poky/documentation/toaster-manual/toaster-manual-reference.xml
+++ /dev/null
@@ -1,837 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='toaster-manual-reference'>
-
-<title>Concepts and Reference</title>
-
-    <para>
-        In order to configure and use Toaster, you should understand some
-        concepts and have some basic command reference material available.
-        This final chapter provides conceptual information on layer sources,
-        releases, and JSON configuration files.
-        Also provided is a quick look at some useful
-        <filename>manage.py</filename> commands that are Toaster-specific.
-        Information on <filename>manage.py</filename> commands does exist
-        across the Web and the information in this manual by no means
-        attempts to provide a command comprehensive reference.
-    </para>
-
-    <section id='layer-source'>
-        <title>Layer Source</title>
-
-        <para>
-            In general, a "layer source" is a source of information about
-            existing layers.
-            In particular, we are concerned with layers that you can use
-            with the Yocto Project and Toaster.
-            This chapter describes a particular type of layer source called
-            a "layer index."
-        </para>
-
-        <para>
-            A layer index is a web application that contains information
-            about a set of custom layers.
-            A good example of an existing layer index is the
-            OpenEmbedded Layer Index.
-            A public instance of this layer index exists at
-            <ulink url='http://layers.openembedded.org'></ulink>.
-            You can find the code for this layer index's web application at
-            <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/layerindex-web/'></ulink>.
-        </para>
-
-        <para>
-            When you tie a layer source into Toaster, it can query the layer
-            source through a
-            <ulink url='http://en.wikipedia.org/wiki/Representational_state_transfer'>REST</ulink>
-            API, store the information about the layers in the Toaster
-            database, and then show the information to users.
-            Users are then able to view that information and build layers
-            from Toaster itself without worrying about cloning or editing
-            the BitBake layers configuration file
-            <filename>bblayers.conf</filename>.
-        </para>
-
-        <para>
-            Tying a layer source into Toaster is convenient when you have
-            many custom layers that need to be built on a regular basis by
-            a community of developers.
-            In fact, Toaster comes pre-configured with the OpenEmbedded
-            Metadata Index.
-            <note>
-                You do not have to use a layer source to use Toaster.
-                Tying into a layer source is optional.
-            </note>
-        </para>
-
-        <section id='layer-source-using-with-toaster'>
-            <title>Setting Up and Using a Layer Source</title>
-
-            <para>
-                To use your own layer source, you need to set up the layer
-                source and then tie it into Toaster.
-                This section describes how to tie into a layer index in a manner
-                similar to the way Toaster ties into the OpenEmbedded Metadata
-                Index.
-           </para>
-
-            <section id='understanding-your-layers'>
-                <title>Understanding Your Layers</title>
-
-                <para>
-                    The obvious first step for using a layer index is to have
-                    several custom layers that developers build and access using
-                    the Yocto Project on a regular basis.
-                    This set of layers needs to exist and you need to be
-                    familiar with where they reside.
-                    You will need that information when you set up the
-                    code for the web application that "hooks" into your set of
-                    layers.
-                </para>
-
-                <para>
-                    For general information on layers, see the
-                    "<ulink url='&YOCTO_DOCS_OM_URL;#the-yocto-project-layer-model'>The Yocto Project Layer Model</ulink>"
-                    section in the Yocto Project Overview and Concepts Manual.
-                    For information on how to create layers, see the
-                    "<ulink url='&YOCTO_DOCS_DEV_URL;#understanding-and-creating-layers'>Understanding and Creating Layers</ulink>"
-                    section in the Yocto Project Development Tasks Manual.
-                </para>
-            </section>
-
-            <section id='configuring-toaster-to-hook-into-your-layer-source'>
-                <title>Configuring Toaster to Hook Into Your Layer Index</title>
-
-                <para>
-                    If you want Toaster to use your layer index, you must host
-                    the web application in a server to which Toaster can
-                    connect.
-                    You also need to give Toaster the information about your
-                    layer index.
-                    In other words, you have to configure Toaster to use your
-                    layer index.
-                    This section describes two methods by which you can
-                    configure and use your layer index.
-                </para>
-
-                <para>
-                    In the previous section, the code for the OpenEmbedded
-                    Metadata Index (i.e.
-                    <ulink url='http://layers.openembedded.org'></ulink>) was
-                    referenced.
-                    You can use this code, which is at
-                    <ulink url='http://git.yoctoproject.org/cgit/cgit.cgi/layerindex-web/'></ulink>,
-                    as a base to create your own layer index.
-                </para>
-
-                <section id='use-the-administration-interface'>
-                    <title>Use the Administration Interface</title>
-
-                    <para>
-                        Access the administration interface through a
-                        browser by entering the URL of your Toaster instance and
-                        adding "<filename>/admin</filename>" to the end of the
-                        URL.
-                        As an example, if you are running Toaster locally, use
-                        the following URL:
-                        <literallayout class='monospaced'>
-     http://127.0.0.1:8000/admin
-                        </literallayout>
-                    </para>
-
-                    <para>
-                        The administration interface has a "Layer sources"
-                        section that includes an "Add layer source" button.
-                        Click that button and provide the required information.
-                        Make sure you select "layerindex" as the layer source type.
-                    </para>
-                </section>
-
-                <section id='use-the-fixture-feature'>
-                    <title>Use the Fixture Feature</title>
-
-                    <para>
-                        The Django fixture feature overrides the default layer
-                        server when you use it to specify a custom URL. To use
-                        the fixture feature, create (or edit) the file
-                        <filename>bitbake/lib/toaster.orm/fixtures/custom.xml</filename>,
-                        and then set the following Toaster setting to your
-                        custom URL:
-                        <literallayout class='monospaced'>
-     &lt;?xml version="1.0" ?&gt;
-     &lt;django-objects version="1.0"&gt;
-       &lt;object model="orm.toastersetting" pk="100"&gt;
-                     &lt;field name="name" type="CharField"&gt;CUSTOM_LAYERINDEX_SERVER&lt;/field&gt;
-                     &lt;field name="value" type="CharField"&gt;https://layers.my_organization.org/layerindex/branch/master/layers/&lt;/field&gt;
-       &lt;/object&gt;
-     &lt;django-objects&gt;
-                        </literallayout>
-                        When you start Toaster for the first time, or if you
-                        delete the file <filename>toaster.sqlite</filename> and restart,
-                        the database will populate cleanly from this layer index server.
-                    </para>
-
-                    <para>
-                        Once the information has been updated, verify the new layer
-                        information is available by using the Toaster web interface.
-                        To do that, visit the "All compatible layers" page inside a
-                        Toaster project. The layers from your layer source should be
-                        listed there.
-                    </para>
-
-                    <para>
-                        If you change the information in your layer index server,
-                        refresh the Toaster database by running the following command:
-                        <literallayout class='monospaced'>
-     $ bitbake/lib/toaster/manage.py lsupdates
-                        </literallayout>
-                        If Toaster can reach the API URL, you should see a message
-                        telling you that Toaster is updating the layer source information.
-                    </para>
-                </section>
-            </section>
-        </section>
-    </section>
-
-    <section id='toaster-releases'>
-        <title>Releases</title>
-
-        <para>
-            When you create a Toaster project using the web interface,
-            you are asked to choose a "Release."
-            In the context of Toaster, the term "Release" refers to a set of
-            layers and a BitBake version the OpenEmbedded build system uses
-            to build something.
-            As shipped, Toaster is pre-configured with releases that
-            correspond to Yocto Project release branches.
-            However, you can modify, delete, and create new releases
-            according to your needs.
-            This section provides some background information on releases.
-        </para>
-
-        <section id='toaster-releases-supported'>
-            <title>Pre-Configured Releases</title>
-
-            <para>
-                As shipped, Toaster is configured to use a specific set of
-                releases.
-                Of course, you can always configure Toaster to use any
-                release.
-                For example, you might want your project to build against a
-                specific commit of any of the "out-of-the-box" releases.
-                Or, you might want your project to build against different
-                revisions of OpenEmbedded and BitBake.
-            </para>
-
-            <para>
-                As shipped, Toaster is configured to work with the following
-                releases:
-                <itemizedlist>
-                    <listitem><para><emphasis>
-                        Yocto Project &DISTRO; "&DISTRO_NAME;" or OpenEmbedded "&DISTRO_NAME;":</emphasis>
-                        This release causes your Toaster projects to build
-                        against the head of the &DISTRO_NAME_NO_CAP; branch at
-                        <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/log/?h=rocko'></ulink>
-                        or <ulink url='http://git.openembedded.org/openembedded-core/commit/?h=rocko'></ulink>.
-                        </para></listitem>
-                    <listitem><para><emphasis>Yocto Project "Master" or OpenEmbedded "Master":</emphasis>
-                        This release causes your Toaster Projects to
-                        build against the head of the master branch, which is
-                        where active development takes place, at
-                        <ulink url='&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/log/'></ulink>
-                        or
-                        <ulink url='http://git.openembedded.org/openembedded-core/log/'></ulink>.
-                        </para></listitem>
-                    <listitem><para><emphasis>Local Yocto Project or Local OpenEmbedded:</emphasis>
-                        This release causes your Toaster Projects to
-                        build against the head of the <filename>poky</filename>
-                        or <filename>openembedded-core</filename> clone you
-                        have local to the machine running Toaster.
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section>
-    </section>
-
-    <section id='configuring-toaster'>
-        <title>Configuring Toaster</title>
-
-        <para>
-            In order to use Toaster, you must configure the database with the
-            default content. The following subsections describe various aspects
-            of Toaster configuration.
-        </para>
-
-        <section id='configuring-the-workflow'>
-            <title>Configuring the Workflow</title>
-
-            <para>
-                The
-                <filename>bldcontrol/management/commands/checksettings.py</filename>
-                file controls workflow configuration.
-                The following steps outline the process to initially populate
-                this database.
-                <orderedlist>
-                    <listitem><para>
-                        The default project settings are set from
-                        <filename>orm/fixtures/settings.xml</filename>.
-                        </para></listitem>
-                    <listitem><para>
-                        The default project distro and layers are added
-                        from <filename>orm/fixtures/poky.xml</filename> if poky
-                        is installed.
-                        If poky is not installed, they are added
-                        from <filename>orm/fixtures/oe-core.xml</filename>.
-                        </para></listitem>
-                    <listitem><para>
-                        If the <filename>orm/fixtures/custom.xml</filename> file
-                        exists, then its values are added.
-                        </para></listitem>
-                    <listitem><para>
-                        The layer index is then scanned and added to the database.
-                        </para></listitem>
-                </orderedlist>
-                Once these steps complete, Toaster is set up and ready to use.
-            </para>
-        </section>
-
-        <section id='customizing-pre-set-data'>
-            <title>Customizing Pre-Set Data</title>
-
-            <para>
-                The pre-set data for Toaster is easily customizable. You can
-                create the <filename>orm/fixtures/custom.xml</filename> file
-                to customize the values that go into to the database.
-                Customization is additive,
-                and can either extend or completely replace the existing values.
-            </para>
-
-            <para>
-                You use the <filename>orm/fixtures/custom.xml</filename> file
-                to change the default project settings for the machine, distro,
-                file images, and layers.
-                When creating a new project, you can use the file to define
-                the offered alternate project release selections.
-                For example, you can add one or more additional selections that
-                present custom layer sets or distros, and any other local or proprietary
-                content.
-            </para>
-
-            <para>
-                Additionally, you can completely disable the content from the
-                <filename>oe-core.xml</filename> and <filename>poky.xml</filename>
-                files by defining the section shown below in the
-                <filename>settings.xml</filename> file.
-                For example, this option is particularly useful if your custom
-                configuration defines fewer releases or layers than the default
-                fixture files.
-            </para>
-
-            <para>
-                The following example sets "name" to "CUSTOM_XML_ONLY" and its value
-                to "True".
-                <literallayout class='monospaced'>
-     &lt;object model="orm.toastersetting" pk="99"&gt;
-       &lt;field type="CharField" name="name"&gt;CUSTOM_XML_ONLY&lt;/field&gt;
-       &lt;field type="CharField" name="value"&gt;True&lt;/field&gt;
-     &lt;/object&gt;
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='understanding-fixture-file-format'>
-            <title>Understanding Fixture File Format</title>
-
-            <para>
-                The following is an overview of the file format used by the
-                <filename>oe-core.xml</filename>, <filename>poky.xml</filename>,
-                and <filename>custom.xml</filename> files.
-            </para>
-
-            <para>
-                The following subsections describe each of the sections in the
-                fixture files, and outline an example section of the XML code.
-                you can use to help understand this information and create a local
-                <filename>custom.xml</filename> file.
-            </para>
-
-            <section id='defining-the-default-distro-and-other-values'>
-                <title>Defining the Default Distro and Other Values</title>
-
-                <para>
-                    This section defines the default distro value for new projects.
-                    By default, it reserves the first Toaster Setting record "1".
-                    The following demonstrates how to set the project default value
-                    for
-                    <ulink url='&YOCTO_DOCS_REF_URL;#var-DISTRO'><filename>DISTRO</filename></ulink>:
-                    <literallayout class='monospaced'>
-     &lt;!-- Set the project default value for DISTRO --&gt;
-     &lt;object model="orm.toastersetting" pk="1"&gt;
-       &lt;field type="CharField" name="name"&gt;DEFCONF_DISTRO&lt;/field&gt;
-       &lt;field type="CharField" name="value"&gt;poky&lt;/field&gt;
-     &lt;/object&gt;
-                    </literallayout>
-                       You can override other default project values by adding
-                       additional Toaster Setting sections such as any of the
-                       settings coming from the <filename>settings.xml</filename>
-                       file.
-                       Also, you can add custom values that are included in the
-                       BitBake environment.
-                       The "pk" values must be unique.
-                       By convention, values that set default project values have a
-                       "DEFCONF" prefix.
-                </para>
-            </section>
-
-            <section id='defining-bitbake-version'>
-                <title>Defining BitBake Version</title>
-
-                <para>
-                    The following defines which version of BitBake is used
-                    for the following release selection:
-                    <literallayout class='monospaced'>
-     &lt;!-- Bitbake versions which correspond to the metadata release --&gt;
-     &lt;object model="orm.bitbakeversion" pk="1"&gt;
-       &lt;field type="CharField" name="name"&gt;rocko&lt;/field&gt;
-       &lt;field type="CharField" name="giturl"&gt;git://git.yoctoproject.org/poky&lt;/field&gt;
-       &lt;field type="CharField" name="branch"&gt;rocko&lt;/field&gt;
-       &lt;field type="CharField" name="dirpath"&gt;bitbake&lt;/field&gt;
-     &lt;/object&gt;
-                    </literallayout>
-                </para>
-            </section>
-
-            <section id='defining-releases'>
-                <title>Defining Release</title>
-
-                <para>
-                    The following defines the releases when you create a new
-                    project.
-                    <literallayout class='monospaced'>
-     &lt;!-- Releases available --&gt;
-     &lt;object model="orm.release" pk="1"&gt;
-       &lt;field type="CharField" name="name"&gt;rocko&lt;/field&gt;
-       &lt;field type="CharField" name="description"&gt;Yocto Project 2.4 "Rocko"&lt;/field&gt;
-       &lt;field rel="ManyToOneRel" to="orm.bitbakeversion" name="bitbake_version"&gt;1&lt;/field&gt;
-       &lt;field type="CharField" name="branch_name"&gt;rocko&lt;/field&gt;
-       &lt;field type="TextField" name="helptext"&gt;Toaster will run your builds using the tip of the &lt;a href="http://git.yoctoproject.org/cgit/cgit.cgi/poky/log/?h=rocko"&gt;Yocto Project Rocko branch&lt;/a&gt;.&lt;/field&gt;
-     &lt;/object&gt;
-                    </literallayout>
-                    The "pk" value must match the above respective BitBake
-                    version record.
-                </para>
-            </section>
-
-            <section id='defining-the-release-default-layer-names'>
-                <title>Defining the Release Default Layer Names</title>
-
-                <para>
-                    The following defines the default layers for each release:
-                    <literallayout class='monospaced'>
-     &lt;!-- Default project layers for each release --&gt;
-     &lt;object model="orm.releasedefaultlayer" pk="1"&gt;
-       &lt;field rel="ManyToOneRel" to="orm.release" name="release"&gt;1&lt;/field&gt;
-       &lt;field type="CharField" name="layer_name"&gt;openembedded-core&lt;/field&gt;
-     &lt;/object&gt;
-                    </literallayout>
-                    The 'pk' values in the example above should start at "1" and increment
-                    uniquely.
-                    You can use the same layer name in multiple releases.
-                </para>
-            </section>
-
-            <section id='defining-layer-definitions'>
-                <title>Defining Layer Definitions</title>
-
-                <para>
-                    Layer definitions are the most complex.
-                    The following defines each of the layers, and then defines the exact layer
-                    version of the layer used for each respective release.
-                    You must have one <filename>orm.layer</filename>
-                    entry for each layer.
-                    Then, with each entry you need a set of
-                    <filename>orm.layer_version</filename> entries that connects
-                    the layer with each release that includes the layer.
-                    In general all releases include the layer.
-                    <literallayout class='monospaced'>
-     &lt;object model="orm.layer" pk="1"&gt;
-       &lt;field type="CharField" name="name"&gt;openembedded-core&lt;/field&gt;
-       &lt;field type="CharField" name="layer_index_url"&gt;&lt;/field&gt;
-       &lt;field type="CharField" name="vcs_url"&gt;git://git.yoctoproject.org/poky&lt;/field&gt;
-       &lt;field type="CharField" name="vcs_web_url"&gt;http://git.yoctoproject.org/cgit/cgit.cgi/poky&lt;/field&gt;
-       &lt;field type="CharField" name="vcs_web_tree_base_url"&gt;http://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/%path%?h=%branch%&lt;/field&gt;
-       &lt;field type="CharField" name="vcs_web_file_base_url"&gt;http://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/%path%?h=%branch%&lt;/field&gt;
-     &lt;/object&gt;
-     &lt;object model="orm.layer_version" pk="1"&gt;
-       &lt;field rel="ManyToOneRel" to="orm.layer" name="layer"&gt;1&lt;/field&gt;
-       &lt;field type="IntegerField" name="layer_source"&gt;0&lt;/field&gt;
-       &lt;field rel="ManyToOneRel" to="orm.release" name="release"&gt;1&lt;/field&gt;
-       &lt;field type="CharField" name="branch"&gt;rocko&lt;/field&gt;
-       &lt;field type="CharField" name="dirpath"&gt;meta&lt;/field&gt;
-     &lt;/object&gt;
-     &lt;object model="orm.layer_version" pk="2"&gt;
-       &lt;field rel="ManyToOneRel" to="orm.layer" name="layer"&gt;1&lt;/field&gt;
-       &lt;field type="IntegerField" name="layer_source"&gt;0&lt;/field&gt;
-       &lt;field rel="ManyToOneRel" to="orm.release" name="release"&gt;2&lt;/field&gt;
-       &lt;field type="CharField" name="branch"&gt;HEAD&lt;/field&gt;
-       &lt;field type="CharField" name="commit"&gt;HEAD&lt;/field&gt;
-       &lt;field type="CharField" name="dirpath"&gt;meta&lt;/field&gt;
-     &lt;/object&gt;
-     &lt;object model="orm.layer_version" pk="3"&gt;
-       &lt;field rel="ManyToOneRel" to="orm.layer" name="layer"&gt;1&lt;/field&gt;
-       &lt;field type="IntegerField" name="layer_source"&gt;0&lt;/field&gt;
-       &lt;field rel="ManyToOneRel" to="orm.release" name="release"&gt;3&lt;/field&gt;
-
-       &lt;field type="CharField" name="branch"&gt;master&lt;/field&gt;
-       &lt;field type="CharField" name="dirpath"&gt;meta&lt;/field&gt;
-     &lt;/object&gt;
-                    </literallayout>
-                    The layer "pk" values above must be unique, and typically start at "1".
-                    The layer version "pk" values must also be unique across all layers,
-                    and typically start at "1".
-                </para>
-            </section>
-        </section>
-    </section>
-
-    <section id='remote-toaster-monitoring'>
-        <title>Remote Toaster Monitoring</title>
-
-        <para>
-            Toaster has an API that allows remote management applications to
-            directly query the state of the Toaster server and its builds
-            in a machine-to-machine manner.
-            This API uses the
-            <ulink url='http://en.wikipedia.org/wiki/Representational_state_transfer'>REST</ulink>
-            interface and the transfer of JSON files.
-            For example, you might
-            monitor a build inside a container through well supported
-            known HTTP ports in order to easily access a Toaster server
-            inside the container.
-            In this example, when you use this direct JSON API, you avoid
-            having web page parsing against the display the user sees.
-        </para>
-
-        <section id='checking-health'>
-            <title>Checking Health</title>
-
-            <para>
-                Before you use remote Toaster monitoring, you should do
-                a health check.
-                To do this, ping the Toaster server using the following call
-                to see if it is still alive:
-                <literallayout class='monospaced'>
-     http://<replaceable>host</replaceable>:<replaceable>port</replaceable>/health
-                </literallayout>
-                Be sure to provide values for <replaceable>host</replaceable>
-                and <replaceable>port</replaceable>.
-                If the server is alive, you will get the response HTML:
-                <literallayout class='monospaced'>
-     &lt;!DOCTYPE html&gt;
-     &lt;html lang="en"&gt;
-       &lt;head&gt;&lt;title&gt;Toaster Health&lt;/title&gt;&lt;/head&gt;
-       &lt;body&gt;Ok&lt;/body&gt;
-     &lt;/html&gt;
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='determining-status-of-builds-in-progress'>
-            <title>Determining Status of Builds in Progress</title>
-
-            <para>
-                Sometimes it is useful to determine the status of a build
-                in progress.
-                To get the status of pending builds, use the following call:
-                <literallayout class='monospaced'>
-     http://<replaceable>host</replaceable>:<replaceable>port</replaceable>/toastergui/api/building
-                </literallayout>
-                Be sure to provide values for <replaceable>host</replaceable>
-                and <replaceable>port</replaceable>.
-                The output is a JSON file that itemizes all builds in
-                progress.
-                This file includes the time in seconds since each
-                respective build started as well as the progress of the
-                cloning, parsing, and task execution.
-                The following is sample output for a build in progress:
-                <literallayout class='monospaced'>
-     {"count": 1,
-      "building": [
-        {"machine": "beaglebone",
-           "seconds": "463.869",
-           "task": "927:2384",
-           "distro": "poky",
-           "clone": "1:1",
-           "id": 2,
-           "start": "2017-09-22T09:31:44.887Z",
-           "name": "20170922093200",
-           "parse": "818:818",
-           "project": "my_rocko",
-           "target": "core-image-minimal"
-           }]
-     }
-                </literallayout>
-                The JSON data for this query is returned in a single line.
-                In the previous example the line has been artificially split for readability.
-            </para>
-        </section>
-
-        <section id='checking-status-of-builds-completed'>
-            <title>Checking Status of Builds Completed</title>
-
-            <para>
-                Once a build is completed, you get the status when you use
-                the following call:
-                <literallayout class='monospaced'>
-     http://<replaceable>host</replaceable>:<replaceable>port</replaceable>/toastergui/api/builds
-                </literallayout>
-                Be sure to provide values for <replaceable>host</replaceable>
-                and <replaceable>port</replaceable>.
-                The output is a JSON file that itemizes all complete builds,
-                and includes build summary information.
-                The following is sample output for a completed build:
-                <literallayout class='monospaced'>
-     {"count": 1,
-      "builds": [
-        {"distro": "poky",
-           "errors": 0,
-           "machine":
-           "beaglebone",
-           "project": "my_rocko",
-           "stop": "2017-09-22T09:26:36.017Z",
-           "target": "quilt-native",
-           "seconds": "78.193",
-           "outcome": "Succeeded",
-           "id": 1,
-           "start": "2017-09-22T09:25:17.824Z",
-           "warnings": 1,
-           "name": "20170922092618"
-           }]
-     }
-                </literallayout>
-                The JSON data for this query is returned in a single line.
-                In the previous example the line has been artificially split for readability.
-            </para>
-        </section>
-
-        <section id='determining-status-of-a-specific-build'>
-            <title>Determining Status of a Specific Build</title>
-
-            <para>
-                Sometimes it is useful to determine the status of a specific
-                build.
-                To get the status of a specific build, use the following
-                call:
-                <literallayout class='monospaced'>
-     http://<replaceable>host</replaceable>:<replaceable>port</replaceable>/toastergui/api/build/<replaceable>ID</replaceable>
-                </literallayout>
-                Be sure to provide values for <replaceable>host</replaceable>,
-                <replaceable>port</replaceable>, and <replaceable>ID</replaceable>.
-                You can find the value for <replaceable>ID</replaceable> from the
-                Builds Completed query. See the
-                "<link linkend='checking-status-of-builds-completed'>Checking Status of Builds Completed</link>"
-                section for more information.
-            </para>
-
-            <para>
-                The output is a JSON file that itemizes the specific build
-                and includes build summary information.
-                The following is sample output for a specific build:
-                <literallayout class='monospaced'>
-     {"build":
-       {"distro": "poky",
-        "errors": 0,
-        "machine": "beaglebone",
-        "project": "my_rocko",
-        "stop": "2017-09-22T09:26:36.017Z",
-        "target": "quilt-native",
-        "seconds": "78.193",
-        "outcome": "Succeeded",
-        "id": 1,
-        "start": "2017-09-22T09:25:17.824Z",
-        "warnings": 1,
-        "name": "20170922092618",
-        "cooker_log": "/opt/user/poky/build-toaster-2/tmp/log/cooker/beaglebone/build_20170922_022607.991.log"
-        }
-     }
-                </literallayout>
-                The JSON data for this query is returned in a single line.
-                In the previous example the line has been artificially split for readability.
-            </para>
-        </section>
-    </section>
-
-    <section id='toaster-useful-commands'>
-        <title>Useful Commands</title>
-
-        <para>
-            In addition to the web user interface and the scripts that start
-            and stop Toaster, command-line commands exist through the
-            <filename>manage.py</filename> management script.
-            You can find general documentation on
-            <filename>manage.py</filename> at the
-            <ulink url='https://docs.djangoproject.com/en/1.7/topics/settings/'>Django</ulink>
-            site.
-            However, several <filename>manage.py</filename> commands have been
-            created that are specific to Toaster and are used to control
-            configuration and back-end tasks.
-            You can locate these commands in the
-            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-            (e.g. <filename>poky</filename>) at
-            <filename>bitbake/lib/manage.py</filename>.
-            This section documents those commands.
-            <note><title>Notes</title>
-                <itemizedlist>
-                    <listitem><para>
-                        When using <filename>manage.py</filename> commands given
-                        a default configuration, you must be sure that your
-                        working directory is set to the
-                        <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                        Using <filename>manage.py</filename> commands from the
-                        Build Directory allows Toaster to find the
-                        <filename>toaster.sqlite</filename> file, which is located
-                        in the Build Directory.
-                        </para></listitem>
-                    <listitem><para>
-                        For non-default database configurations, it is possible
-                        that you can use <filename>manage.py</filename> commands
-                        from a directory other than the Build Directory.
-                        To do so, the
-                        <filename>toastermain/settings.py</filename> file must be
-                        configured to point to the correct database backend.
-                        </para></listitem>
-                </itemizedlist>
-            </note>
-        </para>
-
-        <section id='toaster-command-buildslist'>
-            <title><filename>buildslist</filename></title>
-
-            <para>
-                The <filename>buildslist</filename> command lists all builds
-                that Toaster has recorded.
-                Access the command as follows:
-                <literallayout class='monospaced'>
-     $ bitbake/lib/toaster/manage.py buildslist
-                </literallayout>
-                The command returns a list, which includes numeric
-                identifications, of the builds that Toaster has recorded in the
-                current database.
-            </para>
-
-            <para>
-                You need to run the <filename>buildslist</filename> command
-                first to identify existing builds in the database before
-                using the
-                <link linkend='toaster-command-builddelete'><filename>builddelete</filename></link>
-                command.
-                Here is an example that assumes default repository and build
-                directory names:
-                <literallayout class='monospaced'>
-     $ cd ~/poky/build
-     $ python ../bitbake/lib/toaster/manage.py buildslist
-                </literallayout>
-                If your Toaster database had only one build, the above
-                <filename>buildslist</filename> command would return something
-                like the following:
-                <literallayout class='monospaced'>
-     1: qemux86 poky core-image-minimal
-                </literallayout>
-            </para>
-        </section>
-
-        <section id='toaster-command-builddelete'>
-            <title><filename>builddelete</filename></title>
-
-            <para>
-                The <filename>builddelete</filename> command deletes data
-                associated with a build.
-                Access the command as follows:
-                <literallayout class='monospaced'>
-     $ bitbake/lib/toaster/manage.py builddelete <replaceable>build_id</replaceable>
-                </literallayout>
-                The command deletes all the build data for the specified
-                <replaceable>build_id</replaceable>.
-                This command is useful for removing old and unused data from
-                the database.
-            </para>
-
-            <para>
-                Prior to running the <filename>builddelete</filename>
-                command, you need to get the ID associated with builds
-                by using the
-                <link linkend='toaster-command-buildslist'><filename>buildslist</filename></link>
-                command.
-            </para>
-        </section>
-
-        <section id='toaster-command-perf'>
-            <title><filename>perf</filename></title>
-
-            <para>
-                The <filename>perf</filename> command measures Toaster
-                performance.
-                Access the command as follows:
-                <literallayout class='monospaced'>
-     $ bitbake/lib/toaster/manage.py perf
-                </literallayout>
-                The command is a sanity check that returns page loading
-                times in order to identify performance problems.
-            </para>
-        </section>
-
-        <section id='toaster-command-checksettings'>
-            <title><filename>checksettings</filename></title>
-
-            <para>
-                The <filename>checksettings</filename> command verifies
-                existing Toaster settings.
-                Access the command as follows:
-                <literallayout class='monospaced'>
-     $ bitbake/lib/toaster/manage.py checksettings
-                </literallayout>
-                Toaster uses settings that are based on the
-                database to configure the building tasks.
-                The <filename>checksettings</filename> command verifies that
-                the database settings are valid in the sense that they have
-                the minimal information needed to start a build.
-            </para>
-
-            <para>
-                In order for the <filename>checksettings</filename> command
-                to work, the database must be correctly set up and not have
-                existing data.
-                To be sure the database is ready, you can run the following:
-                <literallayout class='monospaced'>
-     $ bitbake/lib/toaster/mana​ge.py syncdb
-     $ bitbake/lib/toaster/mana​ge.py migrate orm
-     $ bitbake/lib/toaster/mana​ge.py migrate bldcontrol
-                </literallayout>
-                After running these commands, you can run the
-                <filename>checksettings</filename> command.
-            </para>
-        </section>
-
-        <section id='toaster-command-runbuilds'>
-            <title><filename>runbuilds</filename></title>
-
-            <para>
-                The <filename>runbuilds</filename> command launches
-                scheduled builds.
-                Access the command as follows:
-                <literallayout class='monospaced'>
-     $ bitbake/lib/toaster/manage.py runbuilds
-                </literallayout>
-                The <filename>runbuilds</filename> command checks if
-                scheduled builds exist in the database and then launches them
-                per schedule.
-                The command returns after the builds start but before they
-                complete.
-                The Toaster Logging Interface records and updates the database
-                when the builds complete.
-            </para>
-        </section>
-    </section>
-</chapter>
diff --git a/poky/documentation/toaster-manual/toaster-manual-setup-and-use.rst b/poky/documentation/toaster-manual/toaster-manual-setup-and-use.rst
index 01c0dce..97c5af6 100644
--- a/poky/documentation/toaster-manual/toaster-manual-setup-and-use.rst
+++ b/poky/documentation/toaster-manual/toaster-manual-setup-and-use.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 .. Set default pygment highlighting to 'shell' for this document
 .. highlight:: shell
 
diff --git a/poky/documentation/toaster-manual/toaster-manual-setup-and-use.xml b/poky/documentation/toaster-manual/toaster-manual-setup-and-use.xml
deleted file mode 100644
index f555745..0000000
--- a/poky/documentation/toaster-manual/toaster-manual-setup-and-use.xml
+++ /dev/null
@@ -1,844 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='toaster-manual-setup-and-use'>
-
-<title>Setting Up and Using Toaster</title>
-
-    <section id='starting-toaster-for-local-development'>
-        <title>Starting Toaster for Local Development</title>
-
-        <para>
-            Once you have set up the Yocto Project and installed the
-            Toaster system dependencies as described in the
-            "<link linkend='toaster-manual-start'>Preparing to Use Toaster</link>"
-            chapter, you are ready to start Toaster.
-        </para>
-
-        <para>
-            Navigate to the root of your
-            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-            (e.g. <filename>poky</filename>):
-            <literallayout class='monospaced'>
-     $ cd poky
-            </literallayout>
-            Once in that directory, source the build environment script:
-            <literallayout class='monospaced'>
-     $ source oe-init-build-env
-            </literallayout>
-            Next, from the build directory (e.g.
-            <filename>poky/build</filename>), start Toaster using this
-            command:
-            <literallayout class='monospaced'>
-     $ source toaster start
-            </literallayout>
-            You can now run your builds from the command line, or with
-            Toaster as explained in section
-            "<link linkend='using-the-toaster-web-interface'>Using the Toaster Web Interface</link>".
-        </para>
-
-        <para>
-            To access the Toaster web interface, open your favorite
-            browser and enter the following:
-            <literallayout class='monospaced'>
-     http://127.0.0.1:8000
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='setting-a-different-port'>
-        <title>Setting a Different Port</title>
-
-        <para>
-            By default, Toaster starts on port 8000.
-            You can use the <filename>WEBPORT</filename> parameter to
-            set a different port.
-            For example, the following command sets the port to "8400":
-            <literallayout class='monospaced'>
-     $ source toaster start webport=8400
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='setting-up-toaster-without-a-web-server'>
-        <title>Setting Up Toaster Without a Web Server</title>
-
-        <para>
-            You can start a Toaster environment without starting its
-            web server. This is useful for the following:
-            <itemizedlist>
-                <listitem><para>
-                    Capturing a command-line build's statistics into
-                    the Toaster database for examination later.
-                    </para></listitem>
-                <listitem><para>
-                    Capturing a command-line build's statistics when
-                    the Toaster server is already running.
-                    </para></listitem>
-                <listitem><para>
-                    Having one instance of the Toaster web server
-                    track and capture multiple command-line builds,
-                    where each build is started in its own "noweb"
-                    Toaster environment.
-                    </para></listitem>
-            </itemizedlist>
-            The following commands show how to start a Toaster environment
-            without starting its web server, perform BitBake operations,
-            and then shut down the Toaster environment.
-            Once the build is complete, you can close the Toaster environment.
-            Before closing the environment, however, you should allow a few
-            minutes to ensure the complete transfer of its BitBake build
-            statistics to the Toaster database.
-            If you have a separate Toaster web server instance running, you
-            can watch this command-line build's progress and examine the
-            results as soon as they are posted:
-            <literallayout class='monospaced'>
-     $ source toaster start noweb
-     $ bitbake <replaceable>target</replaceable>
-     $ source toaster stop
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='setting-up-toaster-without-a-build-server'>
-        <title>Setting Up Toaster Without a Build Server</title>
-
-        <para>
-            You can start a Toaster environment with the
-            "New Projects" feature disabled.
-            Doing so is useful for the following:
-            <itemizedlist>
-                <listitem><para>
-                    Sharing your build results over the web server while
-                    blocking others from starting builds on your host.
-                    </para></listitem>
-                <listitem><para>
-                    Allowing only local command-line builds to be captured
-                    into the Toaster database.
-                    </para></listitem>
-            </itemizedlist>
-            Use the following command to set up Toaster without a
-            build server:
-            <literallayout class='monospaced'>
-     $ source toaster start nobuild webport=<replaceable>port</replaceable>
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='setting-up-external-access'>
-        <title>Setting up External Access</title>
-
-        <para>
-            By default, Toaster binds to the loop back address
-            (i.e. localhost), which does not allow access from
-            external hosts. To allow external access, use the
-            <filename>WEBPORT</filename> parameter to open an
-            address that connects to the network, specifically the
-            IP address that your NIC uses to connect to the network.
-            You can also bind to all IP addresses the computer
-            supports by using the shortcut
-            "0.0.0.0:<replaceable>port</replaceable>".
-        </para>
-
-        <para>
-            The following example binds to all IP addresses on the
-            host:
-            <literallayout class='monospaced'>
-     $ source toaster start webport=0.0.0.0:8400
-            </literallayout>
-            This example binds to a specific IP address on the host's
-            NIC:
-            <literallayout class='monospaced'>
-     $ source toaster start webport=192.168.1.1:8400
-            </literallayout>
-        </para>
-    </section>
-
-    <section id='the-directory-for-cloning-layers'>
-        <title>The Directory for Cloning Layers</title>
-
-        <para>
-            Toaster creates a <filename>_toaster_clones</filename>
-            directory inside your Source Directory
-            (i.e. <filename>poky</filename>) to clone any layers
-            needed for your builds.
-        </para>
-
-        <para>
-            Alternatively, if you would like all of your Toaster related
-            files and directories to be in a particular location other than
-            the default, you can set the <filename>TOASTER_DIR</filename>
-            environment variable, which takes precedence over your current
-            working directory.
-            Setting this environment variable causes Toaster to create and use
-            <filename>$TOASTER_DIR./_toaster_clones</filename>.
-        </para>
-    </section>
-
-    <section id='toaster-the-build-directory'>
-        <title>The Build Directory</title>
-
-        <para>
-            Toaster creates a build directory within your Source
-            Directory (e.g. <filename>poky</filename>) to execute
-            the builds.
-        </para>
-
-        <para>
-            Alternatively, if you would like all of your Toaster related files
-            and directories to be in a particular location, you can set
-            the <filename>TOASTER_DIR</filename> environment variable,
-            which takes precedence over your current working directory.
-            Setting this environment variable causes Toaster to use
-            <filename>$TOASTER_DIR/build</filename> as the build directory.
-        </para>
-    </section>
-
-    <section id='toaster-creating-a-django-super-user'>
-        <title>Creating a Django Superuser</title>
-
-        <para>
-            Toaster is built on the
-            <ulink url='https://www.djangoproject.com/'>Django framework</ulink>.
-            Django provides an administration interface you can use
-            to edit Toaster configuration parameters.
-        </para>
-
-        <para>
-            To access the Django administration interface, you must
-            create a superuser by following these steps:
-            <orderedlist>
-              <listitem><para>
-                  If you used <filename>pip3</filename>, which is
-                  recommended, to set up the Toaster system dependencies,
-                  you need be sure the local user path is in your
-                  <filename>PATH</filename> list.
-                  To append the pip3 local user path, use the following
-                  command:
-                  <literallayout class='monospaced'>
-   $ export PATH=$PATH:$HOME/.local/bin
-                  </literallayout>
-                  </para></listitem>
-              <listitem><para>
-                  From the directory containing the Toaster database,
-                  which by default is the
-                  <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>,
-                  invoke the <filename>createsuperuser</filename> command
-                  from <filename>manage.py</filename>:
-                  <literallayout class='monospaced'>
-   $ cd ~/poky/build
-   $ ../bitbake/lib/toaster/manage.py createsuperuser
-                  </literallayout>
-                  </para></listitem>
-              <listitem><para>
-                  Django prompts you for the username, which you need to
-                  provide.
-                  </para></listitem>
-              <listitem><para>
-                  Django prompts you for an email address, which is
-                  optional.
-                  </para></listitem>
-              <listitem><para>
-                  Django prompts you for a password, which you must provide.
-                  </para></listitem>
-              <listitem><para>
-                  Django prompts you to re-enter your password for verification.
-                  </para></listitem>
-          </orderedlist>
-          After completing these steps, the following confirmation message
-          appears:
-          <literallayout class='monospaced'>
-   Superuser created successfully.
-          </literallayout>
-      </para>
-
-      <para>
-          Creating a superuser allows you to access the Django administration
-          interface through a browser.
-          The URL for this interface is the same as the URL used for the
-          Toaster instance with "/admin" on the end.
-          For example, if you are running Toaster locally, use the
-          following URL:
-          <literallayout class='monospaced'>
-   http://127.0.0.1:8000/admin
-          </literallayout>
-          You can use the Django administration interface to set Toaster
-          configuration parameters such as the build directory, layer sources,
-          default variable values, and BitBake versions.
-      </para>
-  </section>
-
-  <section id='toaster-setting-up-a-production-instance-of-toaster'>
-      <title>Setting Up a Production Instance of Toaster</title>
-
-      <para>
-          You can use a production instance of Toaster to share the
-          Toaster instance with remote users, multiple users, or both.
-          The production instance is also the setup that can handle
-          heavier loads on the web service.
-          Use the instructions in the following sections to set up
-          Toaster to run builds through the Toaster web interface.
-      </para>
-
-      <section id='toaster-production-instance-requirements'>
-          <title>Requirements</title>
-
-          <para>
-              Be sure you meet the following requirements:
-              <note>
-                  You must comply with all Apache,
-                  <filename>mod-wsgi</filename>, and Mysql requirements.
-              </note>
-              <itemizedlist>
-                  <listitem><para>
-                      Have all the build requirements as described in the
-                      "<link linkend='toaster-manual-start'>Preparing to Use Toaster</link>"
-                      chapter.
-                      </para></listitem>
-                  <listitem><para>
-                      Have an Apache webserver.
-                      </para></listitem>
-                  <listitem><para>
-                      Have <filename>mod-wsgi</filename> for the Apache
-                      webserver.
-                      </para></listitem>
-                  <listitem><para>
-                      Use the Mysql database server.
-                      </para></listitem>
-                  <listitem><para>
-                      If you are using Ubuntu 16.04, run the following:
-                      <literallayout class='monospaced'>
-   $ sudo apt-get install apache2 libapache2-mod-wsgi-py3 mysql-server python3-pip libmysqlclient-dev
-                      </literallayout>
-                      </para></listitem>
-                  <listitem><para>
-                      If you are using Fedora 24 or a RedHat distribution, run
-                      the following:
-                      <literallayout class='monospaced'>
-   $ sudo dnf install httpd python3-mod_wsgi python3-pip mariadb-server mariadb-devel python3-devel
-                      </literallayout>
-                      </para></listitem>
-                  <listitem><para>
-                      If you are using openSUSE Leap 42.1, run
-                      the following:
-                      <literallayout class='monospaced'>
-   $ sudo zypper install apache2 apache2-mod_wsgi-python3 python3-pip mariadb mariadb-client python3-devel
-                      </literallayout>
-                      </para></listitem>
-              </itemizedlist>
-          </para>
-      </section>
-
-      <section id='toaster-installation-steps'>
-          <title>Installation</title>
-
-          <para>
-              Perform the following steps to install Toaster:
-              <orderedlist>
-                  <listitem><para>
-                      Create toaster user and set its home directory to
-                      <filename>/var/www/toaster</filename>:
-                      <literallayout class='monospaced'>
-    $ sudo /usr/sbin/useradd toaster -md /var/www/toaster -s /bin/false
-    $ sudo su - toaster -s /bin/bash
-                      </literallayout>
-                      </para></listitem>
-                  <listitem><para>
-                      Checkout a copy of <filename>poky</filename>
-                      into the web server directory.
-                      You will be using <filename>/var/www/toaster</filename>:
-                      <literallayout class='monospaced'>
-   $ git clone git://git.yoctoproject.org/poky
-   $ git checkout &DISTRO_NAME_NO_CAP;
-                      </literallayout>
-                      </para></listitem>
-                  <listitem><para>
-                      Install Toaster
-                      dependencies using the --user flag which
-                      keeps the Python packages
-                      isolated from your system-provided packages:
-                      <literallayout class='monospaced'>
-   $ cd /var/www/toaster/
-   $ pip3 install --user -r ./poky/bitbake/toaster-requirements.txt
-   $ pip3 install --user mysqlclient
-                      </literallayout>
-                      <note>
-                          Isolating these packages is not required but is
-                          recommended.
-                          Alternatively, you can use your operating system's
-                          package manager to install the packages.
-                      </note>
-                      </para></listitem>
-                  <listitem><para>
-                      Configure Toaster by editing
-                      <filename>/var/www/toaster/poky/bitbake/lib/toaster/toastermain/settings.py</filename>
-                      as follows:
-                      <itemizedlist>
-                          <listitem><para>
-                              Edit the
-                              <ulink url='https://docs.djangoproject.com/en/1.11/ref/settings/#databases'>DATABASES</ulink>
-                              settings:
-                              <literallayout class='monospaced'>
-   DATABASES = {
-       'default': {
-           'ENGINE': 'django.db.backends.mysql',
-           'NAME': 'toaster_data',
-           'USER': 'toaster',
-           'PASSWORD': 'yourpasswordhere',
-           'HOST': 'localhost',
-           'PORT': '3306',
-      }
-   }
-                              </literallayout>
-                              </para></listitem>
-                          <listitem><para>
-                              Edit the
-                              <ulink url='https://docs.djangoproject.com/en/1.11/ref/settings/#std:setting-SECRET_KEY'>SECRET_KEY</ulink>:
-                              <literallayout class='monospaced'>
-   SECRET_KEY = '<replaceable>your_secret_key</replaceable>'
-                              </literallayout>
-                              </para></listitem>
-                          <listitem><para>
-                              Edit the
-                              <ulink url='https://docs.djangoproject.com/en/1.11/ref/settings/#std:setting-STATIC_ROOT'>STATIC_ROOT</ulink>:
-                              <literallayout class='monospaced'>
-   STATIC_ROOT = '/var/www/toaster/static_files/'
-                              </literallayout>
-                              </para></listitem>
-                      </itemizedlist>
-                      </para></listitem>
-                  <listitem><para>
-                      Add the database and user to the <filename>mysql</filename>
-                      server defined earlier:
-                      <literallayout class='monospaced'>
-   $ mysql -u root -p
-   mysql> CREATE DATABASE toaster_data;
-   mysql> CREATE USER 'toaster'@'localhost' identified by 'yourpasswordhere';
-   mysql> GRANT all on toaster_data.* to 'toaster'@'localhost';
-   mysql> quit
-                      </literallayout>
-                      </para></listitem>
-                  <listitem><para>
-                      Get Toaster to create the database schema,
-                      default data, and gather the statically-served files:
-                      <literallayout class='monospaced'>
-   $ cd  /var/www/toaster/poky/
-   $ ./bitbake/lib/toaster/manage.py migrate
-   $ TOASTER_DIR=`pwd` TEMPLATECONF='poky' \
-     ./bitbake/lib/toaster/manage.py checksettings
-   $ ./bitbake/lib/toaster/manage.py collectstatic
-                      </literallayout>
-                      In the previous example, from the <filename>poky</filename>
-                      directory, the <filename>migrate</filename> command
-                      ensures the database schema changes have propagated
-                      correctly (i.e. migrations).
-                      The next line sets the Toaster root directory
-                      <filename>TOASTER_DIR</filename> and the location
-                      of the Toaster configuration file
-                      <filename>TOASTER_CONF</filename>, which is relative to
-                      <filename>TOASTER_DIR</filename>.
-                      The <filename>TEMPLATECONF</filename> value reflects the
-                      contents of <filename>poky/.templateconf</filename>, and
-                      by default, should include the string "poky".
-                      For more information on the Toaster configuration
-                      file, see the
-                      "<link linkend='configuring-toaster'>Configuring Toaster</link>"
-                      section.</para>
-
-                      <para>This line also runs the <filename>checksettings</filename>
-                      command, which configures the location of the Toaster
-                      <ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>.
-                      The Toaster root directory <filename>TOASTER_DIR</filename>
-                      determines where the Toaster build directory
-                      is created on the file system.
-                      In the example above,
-                      <filename>TOASTER_DIR</filename> is set as follows:
-                      <literallayout class="monospaced">
-   /var/www/toaster/poky
-                      </literallayout>
-                      This setting causes the Toaster build directory to be:
-                      <literallayout class="monospaced">
-   /var/www/toaster/poky/build
-                      </literallayout></para>
-
-                      <para>Finally, the <filename>collectstatic</filename> command
-                      is a Django framework command that collects all the
-                      statically served files into a designated directory to
-                      be served up by the Apache web server as defined by
-                      <filename>STATIC_ROOT</filename>.
-                      </para></listitem>
-                  <listitem><para>
-                      Test and/or use the Mysql integration with Toaster's
-                      Django web server.
-                      At this point, you can start up the normal Toaster
-                      Django web server with the Toaster database in Mysql.
-                      You can use this web server to confirm that the database
-                      migration and data population from the Layer Index is
-                      complete.</para>
-
-                      <para>To start the default Toaster Django web server with
-                      the Toaster database now in Mysql, use the standard
-                      start commands:
-                      <literallayout class='monospaced'>
-   $ source oe-init-build-env
-   $ source toaster start
-                      </literallayout>
-                      Additionally, if Django is sufficient for your requirements,
-                      you can use it for your release system and migrate later
-                      to Apache as your requirements change.
-                      </para></listitem>
-                  <listitem><para>
-                      Add an Apache configuration file for Toaster to your Apache web
-                      server's configuration directory.
-                      If you are using Ubuntu or Debian, put the file here:
-                      <literallayout class='monospaced'>
-   /etc/apache2/conf-available/toaster.conf
-                      </literallayout>
-                      If you are using Fedora or RedHat, put it here:
-                      <literallayout class='monospaced'>
-   /etc/httpd/conf.d/toaster.conf
-                      </literallayout>
-                      If you are using OpenSUSE, put it here:
-                      <literallayout class='monospaced'>
-   /etc/apache2/conf.d/toaster.conf
-                      </literallayout>
-                      Following is a sample Apache configuration for Toaster
-                      you can follow:
-                      <literallayout class='monospaced'>
-   Alias /static /var/www/toaster/static_files
-   &lt;Directory /var/www/toaster/static_files&gt;
-           &lt;IfModule mod_access_compat.c&gt;
-                   Order allow,deny
-                   Allow from all
-           &lt;/IfModule&gt;
-           &lt;IfModule !mod_access_compat.c&gt;
-                   Require all granted
-           &lt;/IfModule&gt;
-   &lt;/Directory&gt;
-
-   &lt;Directory /var/www/toaster/poky/bitbake/lib/toaster/toastermain&gt;
-           &lt;Files "wsgi.py"&gt;
-              Require all granted
-           &lt;/Files&gt;
-   &lt;/Directory&gt;
-
-   WSGIDaemonProcess toaster_wsgi python-path=/var/www/toaster/poky/bitbake/lib/toaster:/var/www/toaster/.local/lib/python3.4/site-packages
-
-   WSGIScriptAlias / "/var/www/toaster/poky/bitbake/lib/toaster/toastermain/wsgi.py"
-   &lt;Location /&gt;
-       WSGIProcessGroup toaster_wsgi
-   &lt;/Location&gt;
-                      </literallayout>
-                      If you are using Ubuntu or Debian,
-                      you will need to enable the config and module for Apache:
-                      <literallayout class='monospaced'>
-   $ sudo a2enmod wsgi
-   $ sudo a2enconf toaster
-   $ chmod +x bitbake/lib/toaster/toastermain/wsgi.py
-                      </literallayout>
-                      Finally, restart Apache to make sure all new configuration
-                      is loaded.
-                      For Ubuntu, Debian, and OpenSUSE use:
-                      <literallayout class='monospaced'>
-   $ sudo service apache2 restart
-                      </literallayout>
-                      For Fedora and RedHat use:
-                      <literallayout class='monospaced'>
-   $ sudo service httpd restart
-                      </literallayout>
-                      </para></listitem>
-                  <listitem><para>
-                      Prepare the systemd service to run Toaster builds.
-                      Here is a sample configuration file for the service:
-                      <literallayout class='monospaced'>
-   [Unit]
-   Description=Toaster runbuilds
-
-   [Service]
-   Type=forking
-   User=toaster
-   ExecStart=/usr/bin/screen -d -m -S runbuilds /var/www/toaster/poky/bitbake/lib/toaster/runbuilds-service.sh start
-   ExecStop=/usr/bin/screen -S runbuilds -X quit
-   WorkingDirectory=/var/www/toaster/poky
-
-   [Install]
-   WantedBy=multi-user.target
-                      </literallayout>
-                      Prepare the <filename>runbuilds-service.sh</filename>
-                      script that you need to place in the
-                      <filename>/var/www/toaster/poky/bitbake/lib/toaster/</filename>
-                      directory by setting up executable permissions:
-                      <literallayout class='monospaced'>
-   #!/bin/bash
-
-   #export http_proxy=http://proxy.host.com:8080
-   #export https_proxy=http://proxy.host.com:8080
-   #export GIT_PROXY_COMMAND=$HOME/bin/gitproxy
-
-   cd ~/poky/
-   source ./oe-init-build-env build
-   source ../bitbake/bin/toaster $1 noweb
-   [ "$1" == 'start' ] &amp;&amp; /bin/bash
-                      </literallayout>
-                      </para></listitem>
-                  <listitem><para>
-                      Run the service:
-                      <literallayout class='monospaced'>
-   # service runbuilds start
-                      </literallayout>
-                      Since the service is running in a detached screen
-                      session, you can attach to it using this command:
-                      <literallayout class='monospaced'>
-   $ sudo su - toaster
-   $ screen -rS runbuilds
-                      </literallayout>
-                      You can detach from the service again using "Ctrl-a"
-                      followed by "d" key combination.
-                      </para></listitem>
-              </orderedlist>
-              You can now open up a browser and start using Toaster.
-          </para>
-      </section>
-  </section>
-
-  <section id='using-the-toaster-web-interface'>
-      <title>Using the Toaster Web Interface</title>
-
-      <para>
-          The Toaster web interface allows you to do the following:
-          <itemizedlist>
-              <listitem><para>
-                  Browse published layers in the
-                  <ulink url='http://layers.openembedded.org'>OpenEmbedded Layer Index</ulink>
-                  that are available for your selected version of the build
-                  system.
-                  </para></listitem>
-              <listitem><para>
-                  Import your own layers for building.
-                  </para></listitem>
-              <listitem><para>
-                  Add and remove layers from your configuration.
-                  </para></listitem>
-              <listitem><para>
-                  Set configuration variables.
-                  </para></listitem>
-              <listitem><para>
-                  Select a target or multiple targets to build.
-                  </para></listitem>
-              <listitem><para>
-                  Start your builds.
-                  </para></listitem>
-              <listitem><para>
-                  See what was built (recipes and packages) and what
-                  packages were installed into your final image.
-                  </para></listitem>
-              <listitem><para>
-                  Browse the directory structure of your image.
-                  </para></listitem>
-              <listitem><para>
-                  See the value of all variables in your build configuration,
-                  and which files set each value.
-                  </para></listitem>
-              <listitem><para>
-                  Examine error, warning and trace messages to aid in
-                  debugging.
-                  </para></listitem>
-              <listitem><para>
-                  See information about the BitBake tasks executed and
-                  reused during your build, including those that used
-                  shared state.
-                  </para></listitem>
-              <listitem><para>
-                  See dependency relationships between recipes, packages
-                  and tasks.
-                  </para></listitem>
-              <listitem><para>
-                  See performance information such as build time, task time,
-                  CPU usage, and disk I/O.
-                  </para></listitem>
-          </itemizedlist>
-      </para>
-
-      <section id='web-interface-videos'>
-          <title>Toaster Web Interface Videos</title>
-
-          <para>
-              Following are several videos that show how to use the Toaster GUI:
-              <itemizedlist>
-                  <listitem><para><emphasis>Build Configuration:</emphasis>
-                      This
-                      <ulink url='https://www.youtube.com/watch?v=qYgDZ8YzV6w'>video</ulink>
-                      overviews and demonstrates build configuration for Toaster.
-                      </para></listitem>
-                  <listitem><para><emphasis>Build Custom Layers:</emphasis>
-                      This
-                      <ulink url='https://www.youtube.com/watch?v=QJzaE_XjX5c'>video</ulink>
-                      shows you how to build custom layers that are used with
-                      Toaster.
-                      </para></listitem>
-                  <listitem><para><emphasis>Toaster Homepage and Table Controls:</emphasis>
-                      This
-                      <ulink url='https://www.youtube.com/watch?v=QEARDnrR1Xw'>video</ulink>
-                      goes over the Toaster entry page, and provides
-                      an overview of the data manipulation capabilities of
-                      Toaster, which include search, sorting and filtering by
-                      different criteria.
-                      </para></listitem>
-                  <listitem><para><emphasis>Build Dashboard:</emphasis>
-                      This
-                      <ulink url='https://www.youtube.com/watch?v=KKqHYcnp2gE'>video</ulink>
-                      shows you the build dashboard, a page providing an
-                      overview of the information available for a selected build.
-                      </para></listitem>
-                  <listitem><para><emphasis>Image Information:</emphasis>
-                      This
-                      <ulink url='https://www.youtube.com/watch?v=XqYGFsmA0Rw'>video</ulink>
-                      walks through the information Toaster provides
-                      about images: packages installed and root file system.
-                      </para></listitem>
-                  <listitem><para><emphasis>Configuration:</emphasis>
-                      This
-                      <ulink url='https://www.youtube.com/watch?v=UW-j-T2TzIg'>video</ulink>
-                      provides Toaster build configuration information.
-                      </para></listitem>
-                  <listitem><para><emphasis>Tasks:</emphasis>
-                      This
-                      <ulink url='https://www.youtube.com/watch?v=D4-9vGSxQtw'>video</ulink>
-                      shows the information Toaster provides about the
-                      tasks run by the build system.
-                      </para></listitem>
-                  <listitem><para><emphasis>Recipes and Packages Built:</emphasis>
-                      This
-                      <ulink url='https://www.youtube.com/watch?v=x-6dx4huNnw'>video</ulink>
-                      shows the information Toaster provides about recipes
-                      and packages built.
-                      </para></listitem>
-                  <listitem><para><emphasis>Performance Data:</emphasis>
-                      This
-                      <ulink url='https://www.youtube.com/watch?v=qWGMrJoqusQ'>video</ulink>
-                      shows the build performance data provided by
-                      Toaster.
-                      </para></listitem>
-              </itemizedlist>
-          </para>
-      </section>
-
-      <section id='a-note-on-the-local-yocto-project-release'>
-          <title>Additional Information About the Local Yocto Project Release</title>
-
-          <para>
-              This section only applies if you have set up Toaster
-              for local development, as explained in the
-              "<link linkend='starting-toaster-for-local-development'>Starting Toaster for Local Development</link>"
-              section.
-          </para>
-
-          <para>
-              When you create a project in Toaster, you will be asked to
-              provide a name and to select a Yocto Project release.
-              One of the release options you will find is called
-              "Local Yocto Project".
-              <imagedata fileref="figures/new-project.png" align="center" width="9in" />
-          </para>
-
-          <para>
-              When you select the "Local Yocto Project" release, Toaster
-              will run your builds using the local Yocto
-              Project clone you have in your computer: the same clone
-              you are using to run Toaster.
-              Unless you manually update
-              this clone, your builds will always use the same Git revision.
-          </para>
-
-          <para>
-              If you select any of the other release options, Toaster
-              will fetch the tip of your selected release from the upstream
-              <ulink url='https://git.yoctoproject.org'>Yocto Project repository</ulink>
-              every time you run a build.
-              Fetching this tip effectively
-              means that if your selected release is updated upstream, the
-              Git revision you are using for your builds will change.
-              If you are doing development locally, you might not want this
-              change to happen.
-              In that case, the "Local Yocto Project"
-              release might be the right choice.
-          </para>
-
-          <para>
-              However, the "Local Yocto Project" release
-              will not provide you with any compatible layers, other than the
-              three core layers that come with the Yocto Project:
-              <itemizedlist>
-                  <listitem><para>
-                      <ulink url='http://layers.openembedded.org/layerindex/branch/master/layer/openembedded-core/'>openembedded-core</ulink>
-                  </para></listitem>
-                  <listitem><para>
-                      <ulink url='http://layers.openembedded.org/layerindex/branch/master/layer/meta-poky/'>meta-poky</ulink>
-                  </para></listitem>
-                  <listitem><para>
-                      <ulink url='http://layers.openembedded.org/layerindex/branch/master/layer/meta-yocto-bsp/'>meta-yocto-bsp</ulink>
-                  </para></listitem>
-              </itemizedlist>
-              <imagedata fileref="figures/compatible-layers.png" align="center" width="9in" />
-          </para>
-
-          <para>
-              If you want to build any other layers, you will need to
-              manually import them into your Toaster project, using the
-              "Import layer" page.
-              <imagedata fileref="figures/import-layer.png" align="center" width="9in" />
-          </para>
-
-      </section>
-
-      <section id='toaster-web-interface-preferred-version'>
-          <title>Building a Specific Recipe Given Multiple Versions</title>
-
-            <para>
-                Occasionally, a layer might provide more than one version of
-                the same recipe.
-                For example, the <filename>openembedded-core</filename> layer
-                provides two versions of the <filename>bash</filename> recipe
-                (i.e. 3.2.48 and 4.3.30-r0) and two versions of the
-                <filename>which</filename> recipe (i.e. 2.21 and 2.18).
-                The following figure shows this exact scenario:
-                <imagedata fileref="figures/bash-oecore.png" align="center" width="9in" depth="6in" />
-            </para>
-
-            <para>
-                By default, the OpenEmbedded build system builds one of the
-                two recipes.
-                For the <filename>bash</filename> case, version 4.3.30-r0 is
-                built by default.
-                Unfortunately, Toaster as it exists, is not able to override
-                the default recipe version.
-                If you would like to build bash 3.2.48, you need to set the
-                <ulink url='&YOCTO_DOCS_REF_URL;#var-PREFERRED_VERSION'><filename>PREFERRED_VERSION</filename></ulink>
-                variable.
-                You can do so from Toaster, using the "Add variable" form,
-                which is available in the "BitBake variables" page of the
-                project configuration section as shown in the following screen:
-                <imagedata fileref="figures/add-variable.png" align="center" width="9in" depth="6in" />
-            </para>
-
-            <para>
-                To specify <filename>bash</filename> 3.2.48 as the version to build,
-                enter "PREFERRED_VERSION_bash" in the "Variable" field, and "3.2.48"
-                in the "Value" field.
-                Next, click the "Add variable" button:
-                <imagedata fileref="figures/set-variable.png" align="center" width="9in" depth="6in" />
-            </para>
-
-            <para>
-                After clicking the "Add variable" button, the settings for
-                <filename>PREFERRED_VERSION</filename> are added to the bottom
-                of the BitBake variables list.
-                With these settings, the OpenEmbedded build system builds the
-                desired version of the recipe rather than the default version:
-                <imagedata fileref="figures/variable-added.png" align="center" width="9in" depth="6in" />
-            </para>
-        </section>
-    </section>
-</chapter>
diff --git a/poky/documentation/toaster-manual/toaster-manual-start.rst b/poky/documentation/toaster-manual/toaster-manual-start.rst
index 2d612b8..267f9f4 100644
--- a/poky/documentation/toaster-manual/toaster-manual-start.rst
+++ b/poky/documentation/toaster-manual/toaster-manual-start.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 .. Set default pygments highlighting to shell for this document
 .. highlight:: shell
 
diff --git a/poky/documentation/toaster-manual/toaster-manual-start.xml b/poky/documentation/toaster-manual/toaster-manual-start.xml
deleted file mode 100644
index 8a85700..0000000
--- a/poky/documentation/toaster-manual/toaster-manual-start.xml
+++ /dev/null
@@ -1,116 +0,0 @@
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<chapter id='toaster-manual-start'>
-
-<title>Preparing to Use Toaster</title>
-
-    <para>
-        This chapter describes how you need to prepare your system in order to
-        use Toaster.
-    </para>
-
-    <section id='toaster-setting-up-the-basic-system-requirements'>
-        <title>Setting Up the Basic System Requirements</title>
-
-        <para>
-            Before you can use Toaster, you need to first set up your
-            build system to run the Yocto Project.
-            To do this, follow the instructions in the
-            "<ulink url='&YOCTO_DOCS_DEV_URL;#dev-preparing-the-build-host'>Preparing the Build Host</ulink>"
-            section of the Yocto Project Development Tasks
-            Manual.
- 	    For Ubuntu/Debian, you might also need to do an additional install
-            of pip3.
-                <literallayout class='monospaced'>
-     $ sudo apt-get install python3-pip
-                </literallayout>
-        </para>
-    </section>
-
-    <section id='toaster-establishing-toaster-system-dependencies'>
-        <title>Establishing Toaster System Dependencies</title>
-
-        <para>
-            Toaster requires extra Python dependencies in order to run.
-            A Toaster requirements file named
-            <filename>toaster-requirements.txt</filename> defines the
-            Python dependencies.
-            The requirements file is located in the
-            <filename>bitbake</filename> directory, which is located in the
-            root directory of the
-            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-            (e.g. <filename>poky/bitbake/toaster-requirements.txt</filename>).
-            The dependencies appear in a <filename>pip</filename>,
-            install-compatible format.
-        </para>
-
-        <section id='toaster-load-packages'>
-            <title>Install Toaster Packages</title>
-
-            <para>
-                You need to install the packages that Toaster requires.
-                Use this command:
-                <literallayout class='monospaced'>
-     $ pip3 install --user -r bitbake/toaster-requirements.txt
-                </literallayout>
-                The previous command installs the necessary Toaster modules
-                into a local python 3 cache in your
-                <filename>$HOME</filename> directory.
-                The caches is actually located in
-                <filename>$HOME/.local</filename>.
-                To see what packages have been installed into your
-                <filename>$HOME</filename> directory, do the following:
-                <literallayout class='monospaced'>
-     $ pip3 list installed --local
-                </literallayout>
-                If you need to remove something, the following works:
-                <literallayout class='monospaced'>
-     $ pip3 uninstall PackageNameToUninstall
-                </literallayout>
-            </para>
-        </section>
-
-<!-- Commenting this section out for now in case it needs to be used again.
-
-        <section id='toaster-install-daemon'>
-            <title>Install <filename>daemon</filename></title>
-
-            <para>
-                Toaster depends on
-                <ulink url='http://www.libslack.org/daemon/'><filename>daemon</filename></ulink>.
-                Depending on your distribution, how you install
-                <filename>daemon</filename> differs:
-                <itemizedlist>
-                    <listitem><para><emphasis>Debian-Based Systems:</emphasis>
-                        If you are running a Debian-based distribution,
-                        install <filename>daemon</filename> using the
-                        following command:
-                        <literallayout class='monospaced'>
-     $ sudo apt-get install daemon​
-                        </literallayout>
-                        </para></listitem>
-                    <listitem><para><emphasis>Non-Debian-Based Systems:</emphasis>
-                        If you are not running a Debian-based distribution
-                        (Redhat-based distribution such as Fedora),
-                        you need to download ​the file relevant to the
-                        architecture and then install
-                        <filename>daemon</filename> manually.
-                        Following are the commands for 64-bit distributions:
-                        <literallayout class='monospaced'>
-     $ wget http://libslack.org/daemon/download/daemon-0.6.4-1.x86_64.rpm
-     $ sudo rpm -i daemon-0.6.4-1.x86_64.rpm
-                        </literallayout>
-                        Here are the commands for a 32-bit distribution:
-                        <literallayout class='monospaced'>
-     $ wget http://libslack.org/daemon/download/daemon-0.6.4-1.i686.rpm
-     $ sudo rpm -i ​daemon-0.6.4-1.i686.rpm​
-                        </literallayout>
-                        </para></listitem>
-                </itemizedlist>
-            </para>
-        </section> -->
-    </section>
-</chapter>
diff --git a/poky/documentation/toaster-manual/toaster-manual-style.css b/poky/documentation/toaster-manual/toaster-manual-style.css
deleted file mode 100644
index a7f430d..0000000
--- a/poky/documentation/toaster-manual/toaster-manual-style.css
+++ /dev/null
@@ -1,987 +0,0 @@
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-
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-   Generic XHTML / DocBook XHTML CSS Stylesheet.
-
-   Browser wrangling and typographic design by
-      Oyvind Kolas / pippin@gimp.org
-
-   Customised for Poky by
-      Matthew Allum / mallum@o-hand.com
-
-   Thanks to:
-     Liam R. E. Quin
-     William Skaggs
-     Jakub Steiner
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diff --git a/poky/documentation/toaster-manual/toaster-manual.rst b/poky/documentation/toaster-manual/toaster-manual.rst
index f6f5941..b003f1c 100644
--- a/poky/documentation/toaster-manual/toaster-manual.rst
+++ b/poky/documentation/toaster-manual/toaster-manual.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ===================
 Toaster User Manual
diff --git a/poky/documentation/toaster-manual/toaster-manual.xml b/poky/documentation/toaster-manual/toaster-manual.xml
deleted file mode 100755
index 136b4df..0000000
--- a/poky/documentation/toaster-manual/toaster-manual.xml
+++ /dev/null
@@ -1,159 +0,0 @@
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
-[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
-<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
-
-<book id='toaster-manual' lang='en'
-      xmlns:xi="http://www.w3.org/2003/XInclude"
-      xmlns="http://docbook.org/ns/docbook"
-      >
-    <bookinfo>
-
-        <mediaobject>
-            <imageobject>
-                <imagedata fileref='figures/toaster-title.png'
-                    format='SVG'
-                    align='left' scalefit='1' width='100%'/>
-            </imageobject>
-        </mediaobject>
-
-        <title>
-            Toaster User Manual
-        </title>
-
-        <authorgroup>
-            <author>
-                <affiliation>
-                    <orgname>&ORGNAME;</orgname>
-                </affiliation>
-                <email>&ORGEMAIL;</email>
-            </author>
-        </authorgroup>
-
-        <revhistory>
-            <revision>
-                <revnumber>1.8</revnumber>
-                <date>April 2015</date>
-                <revremark>The initial document released with the Yocto Project 1.8 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.0</revnumber>
-                <date>October 2015</date>
-                <revremark>Released with the Yocto Project 2.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.1</revnumber>
-                <date>April 2016</date>
-                <revremark>Released with the Yocto Project 2.1 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.2</revnumber>
-                <date>October 2016</date>
-                <revremark>Released with the Yocto Project 2.2 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.3</revnumber>
-                <date>May 2017</date>
-                <revremark>Released with the Yocto Project 2.3 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.4</revnumber>
-                <date>October 2017</date>
-                <revremark>Released with the Yocto Project 2.4 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.5</revnumber>
-                <date>May 2018</date>
-                <revremark>Released with the Yocto Project 2.5 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.6</revnumber>
-                <date>November 2018</date>
-                <revremark>Released with the Yocto Project 2.6 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>2.7</revnumber>
-                <date>May 2019</date>
-                <revremark>Released with the Yocto Project 2.7 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>3.0</revnumber>
-                <date>October 2019</date>
-                <revremark>Released with the Yocto Project 3.0 Release.</revremark>
-            </revision>
-            <revision>
-                <revnumber>3.1</revnumber>
-                <date>&REL_MONTH_YEAR;</date>
-                <revremark>Released with the Yocto Project 3.1 Release.</revremark>
-            </revision>
-       </revhistory>
-
-    <copyright>
-      <year>&COPYRIGHT_YEAR;</year>
-      <holder>Linux Foundation</holder>
-    </copyright>
-
-    <legalnotice>
-      <para>
-        Permission is granted to copy, distribute and/or modify this document under
-        the terms of the <ulink type="http" url="http://creativecommons.org/licenses/by-sa/2.0/uk/">Creative Commons Attribution-Share Alike 2.0 UK: England &amp; Wales</ulink> as published by Creative Commons.
-      </para>
-           <note><title>Manual Notes</title>
-               <itemizedlist>
-                   <listitem><para>
-                       This version of the
-                       <emphasis>Toaster User Manual</emphasis>
-                       is for the &YOCTO_DOC_VERSION; release of the
-                       Yocto Project.
-                       To be sure you have the latest version of the manual
-                       for this release, go to the
-                       <ulink url='&YOCTO_DOCS_URL;'>Yocto Project documentation page</ulink>
-                       and select the manual from that site.
-                       Manuals from the site are more up-to-date than manuals
-                       derived from the Yocto Project released TAR files.
-                       </para></listitem>
-                   <listitem><para>
-                       If you located this manual through a web search, the
-                       version of the manual might not be the one you want
-                       (e.g. the search might have returned a manual much
-                       older than the Yocto Project version with which you
-                       are working).
-                       You can see all Yocto Project major releases by
-                       visiting the
-                       <ulink url='&YOCTO_WIKI_URL;/wiki/Releases'>Releases</ulink>
-                       page.
-                       If you need a version of this manual for a different
-                       Yocto Project release, visit the
-                       <ulink url='&YOCTO_DOCS_URL;'>Yocto Project documentation page</ulink>
-                       and select the manual set by using the
-                       "ACTIVE RELEASES DOCUMENTATION" or "DOCUMENTS ARCHIVE"
-                       pull-down menus.
-                       </para></listitem>
-                   <listitem>
-                       <para>
-                       To report any inaccuracies or problems with this
-                       (or any other Yocto Project) manual, send an email to
-                       the Yocto Project documentation mailing list at
-                       <filename>docs@lists.yoctoproject.org</filename> or
-                       log into the freenode <filename>#yocto</filename> channel.
-                       </para>
-                   </listitem>
-               </itemizedlist>
-           </note>
-
-    </legalnotice>
-
-    </bookinfo>
-
-    <xi:include href="toaster-manual-intro.xml"/>
-
-    <xi:include href="toaster-manual-start.xml"/>
-
-    <xi:include href="toaster-manual-setup-and-use.xml"/>
-
-    <xi:include href="toaster-manual-reference.xml"/>
-
-</book>
-<!--
-vim: expandtab tw=80 ts=4
--->
diff --git a/poky/documentation/tools/eclipse-help.sed b/poky/documentation/tools/eclipse-help.sed
deleted file mode 100644
index 9716ea4..0000000
--- a/poky/documentation/tools/eclipse-help.sed
+++ /dev/null
@@ -1,21 +0,0 @@
-#
-# SPDX-License-Identifier: CC-BY-2.0-UK
-#
-# Process poky-ref-manual and yocto-project-qs manual (<word>-<word>-<word> style)
-# For example:
-#   "ulink" href="http://www.yoctoproject.org/docs/1.3/poky-ref-manual/poky-ref-manual.html#faq"
-#   -> "link" href="../poky-ref-manual/faq.html"
-s@"ulink" href="http://www.yoctoproject.org/docs/[^/]*/([a-z]*-[a-z]*-[a-z]*)/[a-z]*-[a-z]*-[a-z]*.html#([^"]*)"/@"link" href="../1/2.html"@g
-
-# Processes all other manuals (<word>-<word> style)
-# For example:
-#   "ulink" href="http://www.yoctoproject.org/docs/1.3/kernel-manual/kernel-manual.html#faq"
-#   -> "link" href="../kernel-manual/faq.html"
-s@"ulink" href="http://www.yoctoproject.org/docs/[^/]*/([a-z]*-[a-z]*)/[a-z]*-[a-z]*.html#([^"]*)"@"link" href="../1/2.html"@g
-
-# Process cases where just an external manual is referenced without an id anchor
-# For example:
-#   "ulink" href="http://www.yoctoproject.org/docs/1.3/kernel-manual/kernel-manual.html
-#   -> "link" href="../kernel-manual/index.html"
-s@"ulink" href="http://www.yoctoproject.org/docs/[^/]*/([a-z]*-[a-z]*-[a-z]*)/[a-z]*-[a-z]*-[a-z]*.html"@"link" href="../1/index.html"@g
-s@"ulink" href="http://www.yoctoproject.org/docs/[^/]*/([a-z]*-[a-z]*)/[a-z]*-[a-z]*.html"@"link" href="../1/index.html"@g
diff --git a/poky/documentation/tools/mega-manual.sed b/poky/documentation/tools/mega-manual.sed
deleted file mode 100644
index c525ab4..0000000
--- a/poky/documentation/tools/mega-manual.sed
+++ /dev/null
@@ -1,39 +0,0 @@
-#
-# SPDX-License-Identifier: CC-BY-2.0-UK
-#
-# Processes bitbake-user-manual (<word>-<word>-<word> style).
-# This style is for manual three-word folders, which currently is only the BitBake User Manual.
-# We used to have the "yocto-project-qs" and "poky-ref-manual" folders but no longer do.
-# s@"ulink" href="http://www.yoctoproject.org/docs/3.1/[a-z]*-[a-z]*-[a-z]*/[a-z]*-[a-z]*-[a-z]*.html#@"link" href="#@g
-s@"ulink" href="http://www.yoctoproject.org/docs/3.1/bitbake-user-manual/bitbake-user-manual.html#@"link" href="#@g
-
-# Processes all other manuals (<word>-<word> style).
-# This style is for manual folders that use two word, which is the standard now (e.g. "ref-manual").
-# Here is the one-liner:
-# s@"ulink" href="http://www.yoctoproject.org/docs/3.1/[a-z]*-[a-z]*/[a-z]*-[a-z]*.html#@"link" href="#@g
-
-s@"ulink" href="http://www.yoctoproject.org/docs/3.1/sdk-manual/sdk-manual.html#@"link" href="#@g
-s@"ulink" href="http://www.yoctoproject.org/docs/3.1/bsp-guide/bsp-guide.html#@"link" href="#@g
-s@"ulink" href="http://www.yoctoproject.org/docs/3.1/dev-manual/dev-manual.html#@"link" href="#@g
-s@"ulink" href="http://www.yoctoproject.org/docs/3.1/overview-manual/overview-manual.html#@"link" href="#@g
-s@"ulink" href="http://www.yoctoproject.org/docs/3.1/brief-yoctoprojectqs/brief-yoctoprojectqs.html#@"link" href="#@g
-s@"ulink" href="http://www.yoctoproject.org/docs/3.1/kernel-dev/kernel-dev.html#@"link" href="#@g
-s@"ulink" href="http://www.yoctoproject.org/docs/3.1/profile-manual/profile-manual.html#@"link" href="#@g
-s@"ulink" href="http://www.yoctoproject.org/docs/3.1/ref-manual/ref-manual.html#@"link" href="#@g
-s@"ulink" href="http://www.yoctoproject.org/docs/3.1/toaster-manual/toaster-manual.html#@"link" href="#@g
-
-# Process cases where just an external manual is referenced without an id anchor
-s@<a class="ulink" href="http://www.yoctoproject.org/docs/3.1/brief-yoctoprojectqs/brief-yoctoprojectqs.html" target="_top">Yocto Project Quick Build</a>@Yocto Project Quick Build@g
-s@<a class="ulink" href="http://www.yoctoproject.org/docs/3.1/bitbake-user-manual/bitbake-user-manual.html" target="_top">BitBake User Manual</a>@BitBake User Manual@g
-s@<a class="ulink" href="http://www.yoctoproject.org/docs/3.1/dev-manual/dev-manual.html" target="_top">Yocto Project Development Tasks Manual</a>@Yocto Project Development Tasks Manual@g
-s@<a class="ulink" href="http://www.yoctoproject.org/docs/3.1/overview-manual/overview-manual.html" target="_top">Yocto Project Overview and Concepts Manual</a>@Yocto project Overview and Concepts Manual@g
-s@<a class="ulink" href="http://www.yoctoproject.org/docs/3.1/sdk-manual/sdk-manual.html" target="_top">Yocto Project Application Development and the Extensible Software Development Kit (eSDK)</a>@Yocto Project Application Development and the Extensible Software Development Kit (eSDK)@g
-s@<a class="ulink" href="http://www.yoctoproject.org/docs/3.1/bsp-guide/bsp-guide.html" target="_top">Yocto Project Board Support Package (BSP) Developer's Guide</a>@Yocto Project Board Support Package (BSP) Developer's Guide@g
-s@<a class="ulink" href="http://www.yoctoproject.org/docs/3.1/profile-manual/profile-manual.html" target="_top">Yocto Project Profiling and Tracing Manual</a>@Yocto Project Profiling and Tracing Manual@g
-s@<a class="ulink" href="http://www.yoctoproject.org/docs/3.1/kernel-dev/kernel-dev.html" target="_top">Yocto Project Linux Kernel Development Manual</a>@Yocto Project Linux Kernel Development Manual@g
-s@<a class="ulink" href="http://www.yoctoproject.org/docs/3.1/ref-manual/ref-manual.html" target="_top">Yocto Project Reference Manual</a>@Yocto Project Reference Manual@g
-s@<a class="ulink" href="http://www.yoctoproject.org/docs/3.1/toaster-manual/toaster-manual.html" target="_top">Toaster User Manual</a>@Toaster User Manual@g
-
-# Process a single, rouge occurrence of a linked reference to the Mega-Manual.
-s@<a class="ulink" href="http://www.yoctoproject.org/docs/3.1/mega-manual/mega-manual.html" target="_top">Yocto Project Mega-Manual</a>@Yocto Project Mega-Manual@g
-
diff --git a/poky/documentation/tools/poky-docbook-to-pdf b/poky/documentation/tools/poky-docbook-to-pdf
deleted file mode 100755
index b36e74b..0000000
--- a/poky/documentation/tools/poky-docbook-to-pdf
+++ /dev/null
@@ -1,54 +0,0 @@
-#!/bin/sh
-#
-# SPDX-License-Identifier: CC-BY-2.0-UK
-#
-
-if [ -z "$1" -o -z "$2" ]; then
-   echo "usage: [-v] $0 <docbook file> <templatedir>"
-   echo
-   echo "*NOTE* you need xsltproc, fop and nwalsh docbook stylesheets" 
-   echo "       installed for this to work!"
-   echo
-   exit 0
-fi
-
-FO=`echo $1 | sed s/.xml/.fo/` || exit 1
-PDF=`echo $1 | sed s/.xml/.pdf/` || exit 1
-TEMPLATEDIR=$2
-
-##
-# These URI should be rewritten by your distribution's xml catalog to
-# match your localy installed XSL stylesheets.
-XSL_BASE_URI="http://docbook.sourceforge.net/release/xsl/current"
-
-# Creates a temporary XSL stylesheet based on titlepage.xsl
-xsltproc -o /tmp/titlepage.xsl                                           \
-	 --xinclude                                                      \
-         $XSL_BASE_URI/template/titlepage.xsl \
-         $TEMPLATEDIR/titlepage.templates.xml || exit 1
-
-# Creates the file needed for FOP
-xsltproc --xinclude                    \
-	 --stringparam hyphenate false \
-	 --stringparam formal.title.placement "figure after" \
-	 --stringparam ulink.show 1 \
-         --stringparam  body.font.master  9 \
-         --stringparam  title.font.master  11 \
-         --stringparam draft.watermark.image "$TEMPLATEDIR/draft.png" \
-         --stringparam  chapter.autolabel 1 \
-         --stringparam  appendix.autolabel A \
-         --stringparam  section.autolabel 1 \
-         --stringparam  section.label.includes.component.label 1 \
-         --output $FO               \
-         $TEMPLATEDIR/poky-db-pdf.xsl    \
-	 $1                 || exit 1
-
-# Invokes the Java version of FOP.  Uses the additional configuration file common/fop-config.xml
-fop -c $TEMPLATEDIR/fop-config.xml -fo $FO -pdf $PDF       || exit 1
-
-rm -f $FO
-rm -f  /tmp/titlepage.xsl
-
-echo
-echo " #### Success! $PDF ready. ####"
-echo
diff --git a/poky/documentation/transitioning-to-a-custom-environment.rst b/poky/documentation/transitioning-to-a-custom-environment.rst
index 160152b..b87fec6 100644
--- a/poky/documentation/transitioning-to-a-custom-environment.rst
+++ b/poky/documentation/transitioning-to-a-custom-environment.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 =============================================================
 Transitioning to a custom environment for systems development
diff --git a/poky/documentation/what-i-wish-id-known.rst b/poky/documentation/what-i-wish-id-known.rst
index 495ebdc..593c6fe 100644
--- a/poky/documentation/what-i-wish-id-known.rst
+++ b/poky/documentation/what-i-wish-id-known.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 =========================================
 What I wish I'd known about Yocto Project