poky/documentation/sdk-manual/sdk-using.xml - mdmillerii/openbmc - Gitiles

 <!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; ] >

 <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
 -->
	<!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; ] >

	<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
	-->