poky: subtree update:c67f57c09e..c6bc20857c
Adrian Freihofer (2):
oe-publish-sdk: fix layers init via ssh
oe-publish-sdk: add --keep-orig option
Alexander Kanavin (68):
meta-selftest: correct the virgl test for 5.8 kernels
bison: upgrade 3.6.4 -> 3.7.1
util-linux: upgrade 2.35.2 -> 2.36
python3-numpy: upgrade 1.19.0 -> 1.19.1
python3-setuptools: upgrade 49.3.1 -> 49.6.0
rsync: upgrade 3.2.2 -> 3.2.3
util-linux: merge .inc into .bb
acpica: upgrade 20200528 -> 20200717
asciidoc: upgrade 9.0.1 -> 9.0.2
cryptodev: upgrade 1.10 -> 1.11
diffoscope: upgrade 153 -> 156
epiphany: upgrade 3.36.3 -> 3.36.4
font-alias: upgrade 1.0.3 -> 1.0.4
gtk+3: upgrade 3.24.21 -> 3.24.22
libcheck: upgrade 0.15.0 -> 0.15.2
libinput: upgrade 1.16.0 -> 1.16.1
libpipeline: upgrade 1.5.2 -> 1.5.3
libx11: upgrade 1.6.9 -> 1.6.11
linux-firmware: upgrade 20200619 -> 20200721
man-pages: upgrade 5.07 -> 5.08
mc: upgrade 4.8.24 -> 4.8.25
mesa: upgrade 20.1.4 -> 20.1.5
piglit: upgrade to latest revision
re2c: upgrade 2.0 -> 2.0.2
sysstat: upgrade 12.2.2 -> 12.4.0
vala: upgrade 0.48.7 -> 0.48.9
bootchart2: update 0.14.8 -> 0.14.9
harfbuzz: convert to meson, enable gobject introspection
pango: update 1.44.7 -> 1.46.0
boost: update 1.73.0 -> 1.74.0
xev: update 1.2.3 -> 1.2.4
wpebackend-fdo: update 1.6.1 -> 1.7.1
gpgme: update 1.13.1 -> 1.14.0
libpsl: update 0.21.0 -> 0.21.1.
gettext: update 0.20.2 -> 0.21
cmake: update 3.17.3 -> 3.18.1
linux-firmware: update 20200721 -> 20200817
meson: update 0.55.0 -> 0.55.1
systemd-boot: bump version to 246.2
json-glib: inherit upstream-version-is-even
packagegroup-core-device-devel: remove
oeqa/x32lib: rework to use readelf from the host
oeqa/multilib: rework to use readelf from the host
oeqa/multilib: un-skip the connman test
poky.conf: do not install packagegroup-core-device-devel into qemu images
glib-2.0: update 2.64.4 -> 2.64.5
cmake: upgrade 3.18.1 -> 3.18.2
libxcrypt: upgrade 4.4.16 -> 4.4.17
debianutils: upgrade 4.11 -> 4.11.1
enchant2: upgrade 2.2.8 -> 2.2.9
harfbuzz: upgrade 2.7.1 -> 2.7.2
libmpc: upgrade 1.1.0 -> 1.2.0
librepo: upgrade 1.12.0 -> 1.12.1
libuv: upgrade 1.38.1 -> 1.39.0
msmtp: upgrade 1.8.11 -> 1.8.12
ninja: upgrade 1.10.0 -> 1.10.1
p11-kit: upgrade 0.23.20 -> 0.23.21
pango: upgrade 1.46.0 -> 1.46.1
re2c: upgrade 2.0.2 -> 2.0.3
resolvconf: upgrade 1.82 -> 1.83
stress-ng: upgrade 0.11.18 -> 0.11.19
gnu-config: update to latest revision
nasm: update 2.15.03 -> 2.15.05
libva-utils: fix upstream version check
gnupg: update 2.2.21 -> 2.2.22
libx11: update 1.6.11 -> 1.6.12
mesa: update 20.1.5 -> 20.1.6
xserver-xorg: update 1.20.8 -> 1.20.9
Andrey Zhizhikin (1):
insane: check for missing update-alternatives inherit
Anibal Limon (1):
recipes-kernel: linux-firmware add qcom-venus-{5.2,5.4} packages
Aníbal Limón (1):
recipes-graphics/xorg-xserver: Add patch to fix segfault when probe
Armin Kuster (2):
bind: update to 9.11.22 ESV
core-image-sato: qemumips use 512 mem
Bruce Ashfield (30):
linux-yocto/5.4: update to v5.4.59
linux-yocto/5.8: update to v5.8.2
yocto-bsp: update to v5.4.56
yocto-bsp: update to v5.4.58
qemu: bump default reference kernel to v5.8
linux-yocto/5.8: fix perf and virtio_scsi warnings
linux-yocto-rt/5.8: fix lttng-modules build
linux-yocto/5.8: selftests/bpf: Prevent runqslower from racing on building bpftool
linux-yocto/5.8: disable CONFIG_NFS_DISABLE_UDP_SUPPORT
poky: set preferred version for linux-yocto to be v5.8
poky-tiny: set preferred version to 5.8
poky: add preferred version for linux-yocto-rt
linux-yocto/5.8: update to v5.8.3
linux-yocto/5.4: update to v5.4.60
kernel: config cleanups for 5.8+
linux-yocto/5.4: update to v5.4.61
linux-yocto/5.8: update to v5.8.4
linux-yocto/5.8: disable IKHEADERS in default builds
kernel-yocto: allow promotion of configuration warnings to errors
kernel-yocto: checksum all modifications to available kernel fragments directories
lttng-modules/devupstream: bump to latest 2.12 commits
linux-yocto-dev: bump to v5.9+
linux-yocto/5.8: update to v5.8.5
kernel-devsrc: account for HOSTCC and HOSTCXX
linux-yocto/config: netfilter: Enable nat for ipv4 and ipv6
linux-yocto/5.8: update to v5.8.8
linux-yocto/5.4: update to v5.4.64
linux-yocto/config: configuration warning cleanup
linux-yocto/5.8: update to v5.8.9
linux-yocto/5.4: update to v5.4.65
Changhyeok Bae (2):
iw: upgrade 5.4 -> 5.8
iputils: upgrade s20190709 -> s20200821
Chris Laplante (12):
bitbake: compat.py: remove file since it no longer actually implements anything
bitbake: COW: formatting
bitbake: COW: migrate test suite into tests/cow
cve-update-db-native: add progress handler
cve-check/cve-update-db-native: use lockfile to fix usage under multiconfig
cve-update-db-native: use context manager for cve_f
cve-check: avoid FileNotFoundError if no do_cve_check task has run
bitbake: utils: process_profilelog: use context manager
bitbake: utils: fix UnboundLocalError when _print_exception raises
cve-update-db-native: be less magical about checking whether the cve-check class is enabled
cve-update-db-native: move -journal checking into do_fetch
cve-update-db-native: remove unused variable
Christophe GUIBOUT (1):
initramfs-framework: support kernel cmdline with double quotes
Denys Dmytriyenko (2):
weston: upgrade 8.0.0 -> 9.0.0
cryptodev: bump 1 commit past 1.11 to fix 5.9-rc1+
Diego Sueiro (2):
license_image.bbclass: Create symlink to the image license manifest dir
license_image.bbclass: Fix symlink to the image license manifest dir creation
Douglas Royds (1):
tcmode-default: Drop gcc-cross-initial, gcc-crosssdk-initial references
Frazer Clews (1):
bitbake: lib: fix most undefined code picked up by pylint
Geoff Parker (1):
systemd-serialgetty: Replace sed quoting using ' with " to allow var expansion
Jacob Kroon (1):
gcc10: Don't default back to -fcommon
Jean-Francois Dagenais (1):
bitbake: siggen: clean_basepath: remove recipe full path when virtual:xyz present
Jens Rehsack (1):
lttng-modules: backport patches from 2.12.x to fix 5.4.64+ and 5.8.9+ builds
Joe Slater (1):
pseudo: fix renaming to self
Jon Mason (4):
cortex-m0plus.inc: change file permissions
tune-cortexa55.inc: clean-up ARMv8.2a uses
tune-cortexa57-cortexa53.inc: add CRC and set march
tune-cortexa*: Cleanups
Joshua Watt (8):
wic: Add 512 Byte alignment to --offset
oeqa: runtime_tests: Extra GPG debugging
oeqa: sdk: Capture stderr output
oeqa: reproducible: Fix test not producing diffs
diffoscope: upgrade 156 -> 158
bitbake: bitbake: Add parsing torture test
bitbake: cooker: Block SIGINT in worker processes
sphinx: dev-manual: Clarify that virtual providers do not apply to runtime dependencies
Kai Kang (1):
dhcpcd: 9.1.4 -> 9.2.0
Kevin Hao (1):
meta-yocto-bsp: Bump to the v5.8 kernel
Khairul Rohaizzat Jamaluddin (1):
wic/bootimg-efi: IMAGE_EFI_BOOT_FILES variable added to separate bootimg-efi and bootimg-partition
Khem Raj (24):
gcc-cross-canadian: Install gcc/g++ wrappers for musl
uninative: Upgrade to 2.9
packagegroup-core-tools-profile: Disable lttng-modules for riscv64
lttng-modules: Disable on riscv64
kexec-tools: Fix build with -fno-common on ppc
lttng-tools: Do not build for riscv64
util-linux: Allow update alternatives for additional apps
lttng-tools: lttng-ust works on riscv64
json-glib: Backport a build fix with clang
rpcbind: Use update-alternatives for rpcinfo
go: Upgrade to 1.15 major release
weston-init: Redefine weston service and add socket activation option
musl: Upgrade to latest master
libucontext: Recognise riscv32 architecture
linuxloader.bbclass: Define riscv32 ldso for musl
populate_sdk_ext: Do not assume local.conf will always exist
weston: plane_add_prop() calls break musl atomic modesetting
weston-init: Enable RDP screen share
weston-init: Do not use fbdev backend
weston-init: Select drm/fbdev backends for qemu machines
oeqa/weston: Fix tests to run with systemd
core-image-weston: Bump qemu memory to 512M
go: Update to 1.15.2 minor release
bind: Inherit update-alternatives
Mark Hatle (6):
package_tar.bbclass: Sync to the other package_* classes
kernel.bbclass: Remove do_install[prefunc] no longer needed
buildhistory.bbclass: Rework to use read_subpackage_metadata
kernel.bbclass: Move away from calling package_get_auto_pr
package.bbclass: hash equivalency and pr service
bitbake: process.py: Handle SystemExit exception to eliminate backtrace
Mark Morton (1):
sphinx: test-manual code block, link, and format update
Martin Jansa (7):
devtool: expand SRC_URI when guessing recipe update mode
image-artifact-names: introduce new bbclass and move some variables into it
kernel.bbclass: use bash variables like imageType, base_name without {}
kernel.bbclass: eliminate (initramfs_)symlink_name variables
kernel.bbclass: use camelCase notation for bash variables in do_deploy
*-initramfs: don't use .rootfs IMAGE_NAME_SUFFIX
bitbake.conf: use ${TCMODE}-${TCLIBC} directory for CACHE
Matt Madison (1):
image.bbclass: fix REPRODUCIBLE_TIMESTAMP_ROOTFS reference
Michael Gloff (2):
sysvinit rc: Use PSPLASH_FIFO_DIR for progress fifo
sysvinit: Remove ${B} assignment
Michael Tretter (1):
devtool: deploy-target: Fix size calculation for hard links
Ming Liu (2):
systemd: split systemd specific udev rules into its own package
libubootenv: inherit uboot-config
Mingli Yu (3):
qemu: always define unknown_lock_type
qemu: override DEBUG_BUILD
bison: remove the parallel build patch
Naveen Saini (1):
lib/oe/recipeutils.py: add support for BBFILES_DYNAMIC
Nicolas Dechesne (73):
linux-libc-headers: kernel headers are installed in STAGING_KERNEL_BUILDDIR
bitbake: sphinx: add initial build infrastructure
bitbake: sphinx: initial sphinx support
bitbake: sphinx: bitbake-user-manual: use builtin sphinx glossary
bitbake: sphinx: switch to readthedocs theme
bitbake: sphinx: override theme CSS
bitbake: sphinx: fixup for links
bitbake: sphinx: fix links inside notes
bitbake: sphinx: fixes all remaining warnings
bitbake: sphinx: Makefile.sphinx: add clean and publish targets
bitbake: sphinx: tweak html output a bit
bitbake: sphinx: add SPDX headers
bitbake: sphinx: index: move the boilerplate at the end of the page
bitbake: sphinx: conf: enable extlinks extension
bitbake: sphinx: add releases page
bitbake: sphinx: bitbake-user-manual: insert additional blank line after title
bitbake: sphinx: last manual round of fixes/improvements
bitbake: sphinx: update style for important, caution and warnings
bitbake: sphinx: remove leading '/'
bitbake: sphinx: theme_override: properly set font for verbatim text
bitbake: bitbake-user-manual: fix bad links
sphinx: add initial build infrastructure
sphinx: initial sphinx support
sphinx: ref-variables: use builtin sphinx glossary
sphinx: overview-manual: add figures
sphinx: switch to readthedocs theme
sphinx: Add SPDX license headers
sphinx: add CSS theme override
sphinx: bsp-guide: add figures
sphinx: add Yocto project logo
sphinx: conf: update copyright
sphinx: conf: add substitutions/global variables
sphinx: add boilerplate file
sphinx: add boilerplate to manuals
sphinx: ref-manual: add revision history table
sphinx: add a general index
sphinx: conf.py: enable sphinx.ext.autosectionlabel
sphinx: ref-manual: use builtin glossary for the Terms section
sphinx: fix internal links
sphinx: ref-manual: fix typo
sphinx: fix custom term links
sphinx: manual updates for some links
sphinx: dev-manual add figures
sphinx: kernel-dev: add figures
sphinx: profile-manual: add figures
sphinx: fix up bold text for informalexample container
sphinx: ref-manual: add figures
sphinx: sdk-manual: add figures
sphinx: test-manual: add figures
sphinx: toaster-manual: add figures
sphinx: add links for Yocto project website
sphinx: fix links when the link text should be displayed
sphinx: add links to terms in the BitBake glossary
sphinx: add links to section in the Bitbake manual
sphinx: setup extlink for docs.yoctoproject.org
sphinx: enable intersphinx extension
sphinx: insert blank below between title and toc
sphinx: fix up terms related to kernel-fitimage
sphinx: conf: a few rendering tweaks
sphinx: makefile: add publish target
sphinx: conf: include CSS/JS files, the proper way
sphinx: convert 'what I wish I'd known'
sphinx: convert 'transitioning to a custom environment'
sphinx: ref-manual: fix heading for oe-init-build-env
sphinx: brief-yoctoprojectqs: fix up all remaining rendering issues
sphinx: Makefile.sphinx improvements
sphinx: convert bsp-guide
sphinx: remove leading '/'
sphinx: update style for important, caution and warnings
sphinx: profile-manual: convert profile-manual
sphinx: theme_override: properly set font for verbatim text
sphinx: theme_override: add tying-it-together admonition
sphinx: conf: exclude adt-manual/*.rst
Oleksandr Kravchuk (1):
ell: update to 0.33
Ovidiu Panait (1):
libxml2: Fix CVE-2020-24977
Peter A. Bigot (2):
bluez5: fix builds that require ell support
timezone: include leap second data in tzdata-core
Peter Bergin (1):
systemd: avoid failing if no udev rules provided
Pierre-Jean Texier (2):
libubootenv: upgrade 0.3 -> 0.3.1
diffoscope: upgrade 158 -> 160
Quentin Schulz (16):
sphinx: brief-yoctoprojectqs: remove redundant welcome
sphinx: brief-yoctoprojectqs: fix ambiguous note for cyclone5 example
sphinx: brief-yoctoprojectqs: add missing boilerplate
sphinx: overview-manual: add link to AUH how-to section
sphinx: overview-manual: fix bitbake basic explanation
sphinx: brief-yoctoprojectqs: add note on branch consistency between layers
sphinx: what-i-wish-id-known: update "don't be fooled by doc search results"
sphinx: overview-manual: remove highlight in bold section
sphinx: replace special quotes with single and double quotes
sphinx: fix incorrect indentations
sphinx: brief-yoctoprojectqs: put other distros note after Ubuntu-specific packages
sphinx: fix a few typos or missing/too many words
sphinx: "highlight" some variables, tasks or files
sphinx: fix or add missing links and remove mention of Eclipse workflow
ref-manual: examples: hello-autotools: upgrade to 2.10
ref-manual: examples: libxpm: add relative path to .inc
Rahul Kumar (1):
systemd-serialgetty: Fix sed expression quoting
Rasmus Villemoes (1):
kernel.bbclass: run do_symlink_kernsrc before do_patch
Richard Purdie (74):
nativesdk-sdk-provides-dummy: Add /bin/sh
bitbake: fetch2/wget: Remove buffering parameter
bitbake: cooker: Ensure parse_quit thread is closed down
bitbake: cooker: Explictly shut down the sync thread
bitbake: fetch2: Drop cups.org from wget status checks
bitbake: build/msg: Cleanup verbose option handling
bitbake: cooker/cookerdata/main: Improve loglevel handling
bitbake: cookerdata: Ensure UI options are updated to the server
bitbake: cooker/cookerdata: Ensure UI event log is updated from commandline
bitbake: cooker: Defer configuration init to after UI connection
bitbake: server/process: Move the socket code to server process only
bitbake: main/server/process: Drop configuration object passing
bitbake: cooker: Ensure BB_ORIGENV is updated by changes to configuration.env
bitbake: server/process: Log extra threads at exit
bitbake: server/process: Add bitbake-server and exec() a new server process
bitbake: runqueue: Don't use sys.argv
bitbake: cooker: Ensure cooker's enviroment is updated on updateConfig
connman-gnome/matchbox-desktop: Remove file:// globbing
selftest/recipetool: Drop globbing SRC_URI test, no longer supported
local.conf.sample: Document memory resident bitbake
bitbake: fetch2: Drop globbing supprt in file:// SRC_URIs
bitbake: server/process: Use sys.executable for bitbake-server
bitbake: process: Avoid bb.utils.timeout
bitbake: utils: Drop broken timeout function
bitbake: server/process: Fix typo in code causing tracebacks
oeqa/selftest: Apply patch to fix cpio build with -fno-common
runqemu: Show an error for conflicting graphics options
lttng: Move platform logic to dedicated inc file
patchelf: upgrade 0.11 -> 0.12
build-appliance/packagegroup-core-base-utils: Replace dhcp-client/dhcp-server with dhcpcd/kea
selftest/prservice: Improve test failure message
iputils: Adapt ${PN}-tftpd package dependency to PACKAGECONFIG
bitbake: process/knotty: Improve early exception handling
bitbake: cooker/cookerdata: Use BBHandledException, not sys.exit()
bitbake: cookerdata: Fix exception raise statements
bitbake: process: Avoid printing binary strings for leftover processes
bitbake: server/process: Ensure logging is flushed
bitbake: server/process: Don't show tracebacks if the lockfile is removed
bitbake: cooker: Ensure parser replacement calls parser final_cleanup
bitbake: cooker: Assign a name to the sync thread to aid debugging
bitbake: server/process: Ensure we don't keep looping if some other server is started
bitbake: server/process: Prefix the log data with pid/time information
bitbake: server/process: Note when commands complete in logs
bitbake: cooker: Ensure parser is cleaned up
runqemu: Add a hook to allow it to renice
bitbake: cooker: Avoid parser deadlocks
bitbake: cooker: Ensure parser worker signal handlers are default
selftest/signing: Ensure build path relocation is safe
oeqa/concurrencytest: Improve builddir path manipulations
bitbake: cooker/command: Fix disconnection handling
bitbake: tinfoil: Ensure sockets don't leak even when exceptions occur
bitbake: tests/fetch: Move away from problematic freedesktop.org urls
bitbake: sphinx: Enhance the sphinx experience/nagivation with:
bitbake: sphinx: theme_override: Use bold for emphasis text
Revert "qemu: always define unknown_lock_type"
Revert "core-image-sato: qemumips use 512 mem"
sphinx: Organize top level docs
sphinx: releases.rst: Add index/links to docs for previous releases
sphinx: boilerplate.rst: Drop versions notes as we have better navigation now
sphinx: boilerplate.rst: Sphinx puts the copyright elsewhere
sphinx: history: Move revision history to its own section
sphinx: manuals: Move boilerplate after toctree
sphinx: Add support for multiple docs version
sphinx: index.rst: Fix links
sphinx: ref-system-requirements: Improve formatting of the notes sections, merging them
sphinx: ref-manual links fixes and many other cleanups to import
sphinx: dev-manual: Various URL, code block and other fixes to imported data
sphinx: sdk-manual: Various URL, code block and other fixes to imported data
sphinx: kernel-dev: Various URL, code block and other fixes to imported data
sphinx: theme_override: Use bold for emphasis text
sphinx: ref-tasks: Add populate_sdk_ext task definition
sphinx: ref-manual/migration: Split each release into its own file
sphinx: overview-manual: Various URL, code block and other fixes to imported data
build-appliance-image: Update to master head revision
Robert Yang (3):
bitbake: cooker.py: Save prioritized BBFILES to BBFILES_PRIORITIZED
bitbake: utils.py: get_file_layer(): Exit the loop when file is matched
bitbake: utils.py: get_file_layer(): Improve performance
Ross Burton (25):
package.bbclass: explode the RPROVIDES so we don't think the versions are provides
elfutils: silence a new QA warning
insane: improve gnu-hash-style warning
gdk-pixbuf: add tests PACKAGECONFIG
debianutils: change SRC_URI to use snapshot.debian.org
insane: only load real files as ELF
autoconf: consolidate SRC_URI
autoconf: consolidate DEPENDS
kea: no need to depend on kea-native
kea: don't use PACKAGECONFIG inappropriately
kea: bump to 1.7.10
help2man: rewrite recipe
local.conf.sample.extended: remove help2man reference
curl: add vendors to CVE_PRODUCT to exclude false positives
harfbuzz: update patch status
harfbuzz: fix a build race around hb-version.h
cmake: whitelist CVE-2016-10642
ncurses: remove config.cache
qemu: fix CVE-2020-14364
cve-update-db-native: remove unused import
cve-update-db-native: add more logging when fetching
cve-update-db-native: use fetch task
alsa-plugins: improve .la removal
sato-screenshot: improve .la removal
buildhistory-diff: use BUILDDIR to know where buildhistory is
Saul Wold (1):
gnupg: uprev 2.2.22 -> 2.2.23
Stacy Gaikovaia (2):
bison: uprev from 3.7.1 to 3.7.2
valgrind: fix memcheck vgtests remove fullpath-after flags
Steve Sakoman (1):
xinput-calibrator: change SRC_URI to branch with libinput support
Sumit Garg (1):
insane: fix gnu-hash-style check
TeohJayShen (1):
oeqa/runtime: add test for matchbox-terminal
Tim Orling (1):
sphinx: toaster-manual: fix vars, links, code blocks
Vijai Kumar K (2):
image_types_wic: Add ASSUME_PROVIDED to WICVARS
wic: misc: Add /bin to the list of searchpaths
Yanfei Xu (1):
kernel-yocto: only replace leading -I in include paths
Yi Zhao (1):
glib-networking: add ptest
Zhixiong Chi (1):
gnutls: CVE-2020-24659
akuster (8):
log4cplus: move meta-oe pkg to core
kea: Move from meta-networking
maintainers.inc: Add me as kea & log4plus maintainer.
dhcpcd: Move from meta-network as OE-Core needs a client
maintainers.inc: Add me as dhcpcd maintainer
dhcp: remove from core
bind: Add 9.16.x
bind: 9.11 remove
hongxu (1):
sysstat: fix installed-vs-shipped QA Issue in systemd
zangrc (4):
libcap:upgrade 2.42 -> 2.43
libcap-ng:upgrade 0.7.10 -> 0.7.11
libgpg-error:upgrade 1.38 -> 1.39
at-spi2-core:upgrade 2.36.0 -> 2.36.1
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I5542f5eea751a2641342e945725fd687cd74bebe
diff --git a/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-hello.rst b/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-hello.rst
new file mode 100644
index 0000000..e3fd321
--- /dev/null
+++ b/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-hello.rst
@@ -0,0 +1,415 @@
+.. SPDX-License-Identifier: CC-BY-2.5
+
+===================
+Hello World Example
+===================
+
+BitBake Hello World
+===================
+
+The simplest example commonly used to demonstrate any new programming
+language or tool is the "`Hello
+World <http://en.wikipedia.org/wiki/Hello_world_program>`__" example.
+This appendix demonstrates, in tutorial form, Hello World within the
+context of BitBake. The tutorial describes how to create a new project
+and the applicable metadata files necessary to allow BitBake to build
+it.
+
+Obtaining BitBake
+=================
+
+See the :ref:`bitbake-user-manual/bitbake-user-manual-hello:obtaining bitbake` section for
+information on how to obtain BitBake. Once you have the source code on
+your machine, the BitBake directory appears as follows: ::
+
+ $ ls -al
+ total 100
+ drwxrwxr-x. 9 wmat wmat 4096 Jan 31 13:44 .
+ drwxrwxr-x. 3 wmat wmat 4096 Feb 4 10:45 ..
+ -rw-rw-r--. 1 wmat wmat 365 Nov 26 04:55 AUTHORS
+ drwxrwxr-x. 2 wmat wmat 4096 Nov 26 04:55 bin
+ drwxrwxr-x. 4 wmat wmat 4096 Jan 31 13:44 build
+ -rw-rw-r--. 1 wmat wmat 16501 Nov 26 04:55 ChangeLog
+ drwxrwxr-x. 2 wmat wmat 4096 Nov 26 04:55 classes
+ drwxrwxr-x. 2 wmat wmat 4096 Nov 26 04:55 conf
+ drwxrwxr-x. 3 wmat wmat 4096 Nov 26 04:55 contrib
+ -rw-rw-r--. 1 wmat wmat 17987 Nov 26 04:55 COPYING
+ drwxrwxr-x. 3 wmat wmat 4096 Nov 26 04:55 doc
+ -rw-rw-r--. 1 wmat wmat 69 Nov 26 04:55 .gitignore
+ -rw-rw-r--. 1 wmat wmat 849 Nov 26 04:55 HEADER
+ drwxrwxr-x. 5 wmat wmat 4096 Jan 31 13:44 lib
+ -rw-rw-r--. 1 wmat wmat 195 Nov 26 04:55 MANIFEST.in
+ -rw-rw-r--. 1 wmat wmat 2887 Nov 26 04:55 TODO
+
+At this point, you should have BitBake cloned to a directory that
+matches the previous listing except for dates and user names.
+
+Setting Up the BitBake Environment
+==================================
+
+First, you need to be sure that you can run BitBake. Set your working
+directory to where your local BitBake files are and run the following
+command: ::
+
+ $ ./bin/bitbake --version
+ BitBake Build Tool Core version 1.23.0, bitbake version 1.23.0
+
+The console output tells you what version
+you are running.
+
+The recommended method to run BitBake is from a directory of your
+choice. To be able to run BitBake from any directory, you need to add
+the executable binary to your binary to your shell's environment
+``PATH`` variable. First, look at your current ``PATH`` variable by
+entering the following: ::
+
+ $ echo $PATH
+
+Next, add the directory location
+for the BitBake binary to the ``PATH``. Here is an example that adds the
+``/home/scott-lenovo/bitbake/bin`` directory to the front of the
+``PATH`` variable: ::
+
+ $ export PATH=/home/scott-lenovo/bitbake/bin:$PATH
+
+You should now be able to enter the ``bitbake`` command from the command
+line while working from any directory.
+
+The Hello World Example
+=======================
+
+The overall goal of this exercise is to build a complete "Hello World"
+example utilizing task and layer concepts. Because this is how modern
+projects such as OpenEmbedded and the Yocto Project utilize BitBake, the
+example provides an excellent starting point for understanding BitBake.
+
+To help you understand how to use BitBake to build targets, the example
+starts with nothing but the ``bitbake`` command, which causes BitBake to
+fail and report problems. The example progresses by adding pieces to the
+build to eventually conclude with a working, minimal "Hello World"
+example.
+
+While every attempt is made to explain what is happening during the
+example, the descriptions cannot cover everything. You can find further
+information throughout this manual. Also, you can actively participate
+in the :oe_lists:`/g/bitbake-devel`
+discussion mailing list about the BitBake build tool.
+
+.. note::
+
+ This example was inspired by and drew heavily from
+ `Mailing List post - The BitBake equivalent of "Hello, World!"
+ <http://www.mail-archive.com/yocto@yoctoproject.org/msg09379.html>`_.
+
+As stated earlier, the goal of this example is to eventually compile
+"Hello World". However, it is unknown what BitBake needs and what you
+have to provide in order to achieve that goal. Recall that BitBake
+utilizes three types of metadata files:
+:ref:`bitbake-user-manual/bitbake-user-manual-intro:configuration files`,
+:ref:`bitbake-user-manual/bitbake-user-manual-intro:classes`, and
+:ref:`bitbake-user-manual/bitbake-user-manual-intro:recipes`.
+But where do they go? How does BitBake find
+them? BitBake's error messaging helps you answer these types of
+questions and helps you better understand exactly what is going on.
+
+Following is the complete "Hello World" example.
+
+#. **Create a Project Directory:** First, set up a directory for the
+ "Hello World" project. Here is how you can do so in your home
+ directory: ::
+
+ $ mkdir ~/hello
+ $ cd ~/hello
+
+ This is the directory that
+ BitBake will use to do all of its work. You can use this directory
+ to keep all the metafiles needed by BitBake. Having a project
+ directory is a good way to isolate your project.
+
+#. **Run BitBake:** At this point, you have nothing but a project
+ directory. Run the ``bitbake`` command and see what it does: ::
+
+ $ bitbake
+ The BBPATH variable is not set and bitbake did not
+ find a conf/bblayers.conf file in the expected location.
+ Maybe you accidentally invoked bitbake from the wrong directory?
+ DEBUG: Removed the following variables from the environment:
+ GNOME_DESKTOP_SESSION_ID, XDG_CURRENT_DESKTOP,
+ GNOME_KEYRING_CONTROL, DISPLAY, SSH_AGENT_PID, LANG, no_proxy,
+ XDG_SESSION_PATH, XAUTHORITY, SESSION_MANAGER, SHLVL,
+ MANDATORY_PATH, COMPIZ_CONFIG_PROFILE, WINDOWID, EDITOR,
+ GPG_AGENT_INFO, SSH_AUTH_SOCK, GDMSESSION, GNOME_KEYRING_PID,
+ XDG_SEAT_PATH, XDG_CONFIG_DIRS, LESSOPEN, DBUS_SESSION_BUS_ADDRESS,
+ _, XDG_SESSION_COOKIE, DESKTOP_SESSION, LESSCLOSE, DEFAULTS_PATH,
+ UBUNTU_MENUPROXY, OLDPWD, XDG_DATA_DIRS, COLORTERM, LS_COLORS
+
+ The majority of this output is specific to environment variables that
+ are not directly relevant to BitBake. However, the very first
+ message regarding the ``BBPATH`` variable and the
+ ``conf/bblayers.conf`` file is relevant.
+
+ When you run BitBake, it begins looking for metadata files. The
+ :term:`BBPATH` variable is what tells BitBake where
+ to look for those files. ``BBPATH`` is not set and you need to set
+ it. Without ``BBPATH``, BitBake cannot find any configuration files
+ (``.conf``) or recipe files (``.bb``) at all. BitBake also cannot
+ find the ``bitbake.conf`` file.
+
+#. **Setting BBPATH:** For this example, you can set ``BBPATH`` in
+ the same manner that you set ``PATH`` earlier in the appendix. You
+ should realize, though, that it is much more flexible to set the
+ ``BBPATH`` variable up in a configuration file for each project.
+
+ From your shell, enter the following commands to set and export the
+ ``BBPATH`` variable: ::
+
+ $ BBPATH="projectdirectory"
+ $ export BBPATH
+
+ Use your actual project directory in the command. BitBake uses that
+ directory to find the metadata it needs for your project.
+
+ .. note::
+
+ When specifying your project directory, do not use the tilde
+ ("~") character as BitBake does not expand that character as the
+ shell would.
+
+#. **Run BitBake:** Now that you have ``BBPATH`` defined, run the
+ ``bitbake`` command again: ::
+
+ $ bitbake
+ ERROR: Traceback (most recent call last):
+ File "/home/scott-lenovo/bitbake/lib/bb/cookerdata.py", line 163, in wrapped
+ return func(fn, *args)
+ File "/home/scott-lenovo/bitbake/lib/bb/cookerdata.py", line 173, in parse_config_file
+ return bb.parse.handle(fn, data, include)
+ File "/home/scott-lenovo/bitbake/lib/bb/parse/__init__.py", line 99, in handle
+ return h['handle'](fn, data, include)
+ File "/home/scott-lenovo/bitbake/lib/bb/parse/parse_py/ConfHandler.py", line 120, in handle
+ abs_fn = resolve_file(fn, data)
+ File "/home/scott-lenovo/bitbake/lib/bb/parse/__init__.py", line 117, in resolve_file
+ raise IOError("file %s not found in %s" % (fn, bbpath))
+ IOError: file conf/bitbake.conf not found in /home/scott-lenovo/hello
+
+ ERROR: Unable to parse conf/bitbake.conf: file conf/bitbake.conf not found in /home/scott-lenovo/hello
+
+ This sample output shows that BitBake could not find the
+ ``conf/bitbake.conf`` file in the project directory. This file is
+ the first thing BitBake must find in order to build a target. And,
+ since the project directory for this example is empty, you need to
+ provide a ``conf/bitbake.conf`` file.
+
+#. **Creating conf/bitbake.conf:** The ``conf/bitbake.conf`` includes
+ a number of configuration variables BitBake uses for metadata and
+ recipe files. For this example, you need to create the file in your
+ project directory and define some key BitBake variables. For more
+ information on the ``bitbake.conf`` file, see
+ http://git.openembedded.org/bitbake/tree/conf/bitbake.conf.
+
+ Use the following commands to create the ``conf`` directory in the
+ project directory: ::
+
+ $ mkdir conf
+
+ From within the ``conf`` directory,
+ use some editor to create the ``bitbake.conf`` so that it contains
+ the following: ::
+
+ PN = "${@bb.parse.BBHandler.vars_from_file(d.getVar('FILE', False),d)[0] or 'defaultpkgname'}"
+
+ TMPDIR = "${TOPDIR}/tmp"
+ CACHE = "${TMPDIR}/cache"
+ STAMP = "${TMPDIR}/${PN}/stamps"
+ T = "${TMPDIR}/${PN}/work"
+ B = "${TMPDIR}/${PN}"
+
+ .. note::
+
+ Without a value for PN , the variables STAMP , T , and B , prevent more
+ than one recipe from working. You can fix this by either setting PN to
+ have a value similar to what OpenEmbedded and BitBake use in the default
+ bitbake.conf file (see previous example). Or, by manually updating each
+ recipe to set PN . You will also need to include PN as part of the STAMP
+ , T , and B variable definitions in the local.conf file.
+
+ The ``TMPDIR`` variable establishes a directory that BitBake uses
+ for build output and intermediate files other than the cached
+ information used by the
+ :ref:`bitbake-user-manual/bitbake-user-manual-execution:setscene`
+ process. Here, the ``TMPDIR`` directory is set to ``hello/tmp``.
+
+ .. tip::
+
+ You can always safely delete the tmp directory in order to rebuild a
+ BitBake target. The build process creates the directory for you when you
+ run BitBake.
+
+ For information about each of the other variables defined in this
+ example, check :term:`PN`, :term:`TOPDIR`, :term:`CACHE`, :term:`STAMP`,
+ :term:`T` or :term:`B` to take you to the definitions in the
+ glossary.
+
+#. **Run BitBake:** After making sure that the ``conf/bitbake.conf`` file
+ exists, you can run the ``bitbake`` command again: ::
+
+ $ bitbake
+ ERROR: Traceback (most recent call last):
+ File "/home/scott-lenovo/bitbake/lib/bb/cookerdata.py", line 163, in wrapped
+ return func(fn, *args)
+ File "/home/scott-lenovo/bitbake/lib/bb/cookerdata.py", line 177, in _inherit
+ bb.parse.BBHandler.inherit(bbclass, "configuration INHERITs", 0, data)
+ File "/home/scott-lenovo/bitbake/lib/bb/parse/parse_py/BBHandler.py", line 92, in inherit
+ include(fn, file, lineno, d, "inherit")
+ File "/home/scott-lenovo/bitbake/lib/bb/parse/parse_py/ConfHandler.py", line 100, in include
+ raise ParseError("Could not %(error_out)s file %(fn)s" % vars(), oldfn, lineno)
+ ParseError: ParseError in configuration INHERITs: Could not inherit file classes/base.bbclass
+
+ ERROR: Unable to parse base: ParseError in configuration INHERITs: Could not inherit file classes/base.bbclass
+
+ In the sample output,
+ BitBake could not find the ``classes/base.bbclass`` file. You need
+ to create that file next.
+
+#. **Creating classes/base.bbclass:** BitBake uses class files to
+ provide common code and functionality. The minimally required class
+ for BitBake is the ``classes/base.bbclass`` file. The ``base`` class
+ is implicitly inherited by every recipe. BitBake looks for the class
+ in the ``classes`` directory of the project (i.e ``hello/classes``
+ in this example).
+
+ Create the ``classes`` directory as follows: ::
+
+ $ cd $HOME/hello
+ $ mkdir classes
+
+ Move to the ``classes`` directory and then create the
+ ``base.bbclass`` file by inserting this single line: addtask build
+ The minimal task that BitBake runs is the ``do_build`` task. This is
+ all the example needs in order to build the project. Of course, the
+ ``base.bbclass`` can have much more depending on which build
+ environments BitBake is supporting.
+
+#. **Run BitBake:** After making sure that the ``classes/base.bbclass``
+ file exists, you can run the ``bitbake`` command again: ::
+
+ $ bitbake
+ Nothing to do. Use 'bitbake world' to build everything, or run 'bitbake --help' for usage information.
+
+ BitBake is finally reporting
+ no errors. However, you can see that it really does not have
+ anything to do. You need to create a recipe that gives BitBake
+ something to do.
+
+#. **Creating a Layer:** While it is not really necessary for such a
+ small example, it is good practice to create a layer in which to
+ keep your code separate from the general metadata used by BitBake.
+ Thus, this example creates and uses a layer called "mylayer".
+
+ .. note::
+
+ You can find additional information on layers in the
+ ":ref:`bitbake-user-manual/bitbake-user-manual-intro:Layers`" section.
+
+ Minimally, you need a recipe file and a layer configuration file in
+ your layer. The configuration file needs to be in the ``conf``
+ directory inside the layer. Use these commands to set up the layer
+ and the ``conf`` directory: ::
+
+ $ cd $HOME
+ $ mkdir mylayer
+ $ cd mylayer
+ $ mkdir conf
+
+ Move to the ``conf`` directory and create a ``layer.conf`` file that has the
+ following: ::
+
+ BBPATH .= ":${LAYERDIR}"
+ BBFILES += "${LAYERDIR}/\*.bb"
+ BBFILE_COLLECTIONS += "mylayer"
+ `BBFILE_PATTERN_mylayer := "^${LAYERDIR_RE}/"
+
+ For information on these variables, click on :term:`BBFILES`,
+ :term:`LAYERDIR`, :term:`BBFILE_COLLECTIONS` or :term:`BBFILE_PATTERN_mylayer <BBFILE_PATTERN>`
+ to go to the definitions in the glossary.
+
+ You need to create the recipe file next. Inside your layer at the
+ top-level, use an editor and create a recipe file named
+ ``printhello.bb`` that has the following: ::
+
+ DESCRIPTION = "Prints Hello World"
+ PN = 'printhello'
+ PV = '1'
+
+ python do_build() {
+ bb.plain("********************");
+ bb.plain("* *");
+ bb.plain("* Hello, World! *");
+ bb.plain("* *");
+ bb.plain("********************");
+ }
+
+ The recipe file simply provides
+ a description of the recipe, the name, version, and the ``do_build``
+ task, which prints out "Hello World" to the console. For more
+ information on :term:`DESCRIPTION`, :term:`PN` or :term:`PV`
+ follow the links to the glossary.
+
+#. **Run BitBake With a Target:** Now that a BitBake target exists, run
+ the command and provide that target: ::
+
+ $ cd $HOME/hello
+ $ bitbake printhello
+ ERROR: no recipe files to build, check your BBPATH and BBFILES?
+
+ Summary: There was 1 ERROR message shown, returning a non-zero exit code.
+
+ We have created the layer with the recipe and
+ the layer configuration file but it still seems that BitBake cannot
+ find the recipe. BitBake needs a ``conf/bblayers.conf`` that lists
+ the layers for the project. Without this file, BitBake cannot find
+ the recipe.
+
+#. **Creating conf/bblayers.conf:** BitBake uses the
+ ``conf/bblayers.conf`` file to locate layers needed for the project.
+ This file must reside in the ``conf`` directory of the project (i.e.
+ ``hello/conf`` for this example).
+
+ Set your working directory to the ``hello/conf`` directory and then
+ create the ``bblayers.conf`` file so that it contains the following: ::
+
+ BBLAYERS ?= " \
+ /home/<you>/mylayer \
+ "
+
+ You need to provide your own information for ``you`` in the file.
+
+#. **Run BitBake With a Target:** Now that you have supplied the
+ ``bblayers.conf`` file, run the ``bitbake`` command and provide the
+ target: ::
+
+ $ bitbake printhello
+ Parsing recipes: 100% |##################################################################################|
+ Time: 00:00:00
+ Parsing of 1 .bb files complete (0 cached, 1 parsed). 1 targets, 0 skipped, 0 masked, 0 errors.
+ NOTE: Resolving any missing task queue dependencies
+ NOTE: Preparing RunQueue
+ NOTE: Executing RunQueue Tasks
+ ********************
+ * *
+ * Hello, World! *
+ * *
+ ********************
+ NOTE: Tasks Summary: Attempted 1 tasks of which 0 didn't need to be rerun and all succeeded.
+
+ .. note::
+
+ After the first execution, re-running bitbake printhello again will not
+ result in a BitBake run that prints the same console output. The reason
+ for this is that the first time the printhello.bb recipe's do_build task
+ executes successfully, BitBake writes a stamp file for the task. Thus,
+ the next time you attempt to run the task using that same bitbake
+ command, BitBake notices the stamp and therefore determines that the task
+ does not need to be re-run. If you delete the tmp directory or run
+ bitbake -c clean printhello and then re-run the build, the "Hello,
+ World!" message will be printed again.