forked from brl/citadel
206 lines
9.2 KiB
XML
206 lines
9.2 KiB
XML
<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
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[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
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<chapter id='sdk-using-the-standard-sdk'>
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<title>Using the Standard SDK</title>
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<para>
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This chapter describes the standard SDK and how to install it.
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Information includes unique installation and setup aspects for the
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standard SDK.
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<note>
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For a side-by-side comparison of main features supported for a
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standard SDK as compared to an extensible SDK, see the
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"<link linkend='sdk-manual-intro'>Introduction</link>"
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section.
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</note>
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</para>
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<para>
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You can use a standard SDK to work on Makefile, Autotools, and
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Eclipse-based projects.
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See the
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"<link linkend='sdk-working-projects'>Working with Different Types of Projects</link>"
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chapter for more information.
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</para>
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<section id='sdk-standard-sdk-intro'>
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<title>Why use the Standard SDK and What is in It?</title>
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<para>
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The Standard SDK provides a cross-development toolchain and
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libraries tailored to the contents of a specific image.
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You would use the Standard SDK if you want a more traditional
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toolchain experience as compared to the extensible SDK, which
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provides an internal build system and the
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<filename>devtool</filename> functionality.
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</para>
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<para>
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The installed Standard SDK consists of several files and
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directories.
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Basically, it contains an SDK environment setup script, some
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configuration files, and host and target root filesystems to
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support usage.
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You can see the directory structure in the
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"<link linkend='sdk-installed-standard-sdk-directory-structure'>Installed Standard SDK Directory Structure</link>"
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section.
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</para>
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</section>
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<section id='sdk-installing-the-sdk'>
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<title>Installing the SDK</title>
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<para>
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The first thing you need to do is install the SDK on your host
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development machine by running the <filename>*.sh</filename>
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installation script.
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</para>
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<para>
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You can download a tarball installer, which includes the
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pre-built toolchain, the <filename>runqemu</filename>
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script, and support files from the appropriate directory under
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<ulink url='&YOCTO_TOOLCHAIN_DL_URL;'></ulink>.
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Toolchains are available for 32-bit and 64-bit x86 development
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systems from the <filename>i686</filename> and
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<filename>x86_64</filename> directories, respectively.
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The toolchains the Yocto Project provides are based off the
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<filename>core-image-sato</filename> image and contain
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libraries appropriate for developing against that image.
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Each type of development system supports five or more target
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architectures.
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</para>
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<para>
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The names of the tarball installer scripts are such that a
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string representing the host system appears first in the
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filename and then is immediately followed by a string
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representing the target architecture.
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<literallayout class='monospaced'>
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poky-glibc-<replaceable>host_system</replaceable>-<replaceable>image_type</replaceable>-<replaceable>arch</replaceable>-toolchain-<replaceable>release_version</replaceable>.sh
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Where:
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<replaceable>host_system</replaceable> is a string representing your development system:
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i686 or x86_64.
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<replaceable>image_type</replaceable> is the image for which the SDK was built.
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<replaceable>arch</replaceable> is a string representing the tuned target architecture:
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i586, x86_64, powerpc, mips, armv7a or armv5te
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<replaceable>release_version</replaceable> is a string representing the release number of the
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Yocto Project:
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&DISTRO;, &DISTRO;+snapshot
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</literallayout>
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For example, the following SDK installer is for a 64-bit
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development host system and a i586-tuned target architecture
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based off the SDK for <filename>core-image-sato</filename> and
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using the current &DISTRO; snapshot:
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<literallayout class='monospaced'>
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poky-glibc-x86_64-core-image-sato-i586-toolchain-&DISTRO;.sh
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</literallayout>
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<note>
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As an alternative to downloading an SDK, you can build the
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SDK installer.
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For information on building the installer, see the
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"<link linkend='sdk-building-an-sdk-installer'>Building an SDK Installer</link>"
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section.
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Another helpful resource for building an installer is the
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<ulink url='https://wiki.yoctoproject.org/wiki/TipsAndTricks/RunningEclipseAgainstBuiltImage'>Cookbook guide to Making an Eclipse Debug Capable Image</ulink>
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wiki page.
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This wiki page focuses on development when using the Eclipse
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IDE.
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</note>
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</para>
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<para>
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The SDK and toolchains are self-contained and by default are
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installed into <filename>/opt/poky</filename>.
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However, when you run the SDK installer, you can choose an
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installation directory.
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<note>
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You must change the permissions on the SDK
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installer script so that it is executable:
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<literallayout class='monospaced'>
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$ chmod +x poky-glibc-x86_64-core-image-sato-i586-toolchain-&DISTRO;.sh
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</literallayout>
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</note>
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</para>
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<para>
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The following command shows how to run the installer given a
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toolchain tarball for a 64-bit x86 development host system and
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a 32-bit x86 target architecture.
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The example assumes the SDK installer is located in
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<filename>~/Downloads/</filename>.
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<note>
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If you do not have write permissions for the directory
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into which you are installing the SDK, the installer
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notifies you and exits.
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Be sure you have write permissions in the directory and
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run the installer again.
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</note>
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<literallayout class='monospaced'>
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$ ./poky-glibc-x86_64-core-image-sato-i586-toolchain-&DISTRO;.sh
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Poky (Yocto Project Reference Distro) SDK installer version &DISTRO;
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===============================================================
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Enter target directory for SDK (default: /opt/poky/&DISTRO;):
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You are about to install the SDK to "/opt/poky/&DISTRO;". Proceed[Y/n]? Y
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Extracting SDK.......................................................................done
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Setting it up...done
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SDK has been successfully set up and is ready to be used.
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Each time you wish to use the SDK in a new shell session, you need to source the environment setup script e.g.
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$ . /opt/poky/&DISTRO;/environment-setup-i586-poky-linux
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</literallayout>
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</para>
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<para>
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Again, reference the
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"<link linkend='sdk-installed-standard-sdk-directory-structure'>Installed Standard SDK Directory Structure</link>"
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section for more details on the resulting directory structure of
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the installed SDK.
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</para>
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</section>
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<section id='sdk-running-the-sdk-environment-setup-script'>
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<title>Running the SDK Environment Setup Script</title>
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<para>
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Once you have the SDK installed, you must run the SDK environment
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setup script before you can actually use it.
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This setup script resides in the directory you chose when you
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installed the SDK.
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For information on where this setup script can reside, see the
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"<link linkend='sdk-appendix-obtain'>Obtaining the SDK</link>"
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Appendix.
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</para>
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<para>
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Before running the script, be sure it is the one that matches the
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architecture for which you are developing.
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Environment setup scripts begin with the string
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"<filename>environment-setup</filename>" and include as part of
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their name the tuned target architecture.
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For example, the command to source a setup script for an IA-based
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target machine using i586 tuning and located in the default SDK
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installation directory is as follows:
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<literallayout class='monospaced'>
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$ source /opt/poky/&DISTRO;/environment-setup-i586-poky-linux
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</literallayout>
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When you run the setup script, the same environment variables are
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defined as are when you run the setup script for an extensible SDK.
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See the
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"<link linkend='sdk-running-the-extensible-sdk-environment-setup-script'>Running the Extensible SDK Environment Setup Script</link>"
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section for more information.
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</para>
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</section>
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</chapter>
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<!--
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vim: expandtab tw=80 ts=4
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-->
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