documentation/poky-ref-manual/development.xml: Garman's partial review comments
(From yocto-docs rev: 329401ac13e60381ca74a617ae398586cbd5dfed) Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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<para>
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The Yocto Project provides toolchains that allow you to develop your application
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outside of the Yocto Project build system for specific hardware.
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These toolchains (called meta-toolchains) contain cross-development tools like compilers,
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linkers, and debuggers that build your application for your target.
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The Yocto Project also provides images that have toolchains set up for supported
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architectures.
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These toolchains (called meta-toolchains) contain cross-development tools such as compilers,
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linkers, and debuggers that build your application for your target device.
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The Yocto Project also provides images that have toolchains for supported
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architectures included within the image.
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This allows you to compile, debug, or profile applications directly on the target device.
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See
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<xref linkend='ref-images'>Reference: Images</xref> for a listing of the image
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types that Yocto Project supports.
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</para>
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<para>
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Using the BitBake tool you can build a meta-toolchain or meta-toolchain-sdk target,
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which is in the form of a tarball.
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which generates a tarball.
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Unpacking this tarball into the <filename class="directory">/opt/poky</filename> directory
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on your host produces a setup script
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(e.g. <filename>/opt/poky/environment-setup-i586-poky-linux</filename>) that
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you can source to initialize your build environment.
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you can <filename>source</filename> to initialize your build environment.
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Sourcing this script adds the compiler, QEMU scripts, QEMU binary, a special version of
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<filename>pkgconfig</filename> and other
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useful utilities to the <filename>PATH</filename> variable used by the Yocto Project
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that builds your application
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specify to use the cross-compiler <filename>arm-poky-linux-gnueabi-gcc</filename>
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and linker <filename>arm-poky-linux-gnueabi-ld</filename>, which are part of the
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meta-toolchain you have previously established:
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meta-toolchain you would have previously established:
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<literallayout class='monospaced'>
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CC=arm-poky-linux-gnueabi-gcc;
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LD=arm-poky-linux-gnueabi-ld;
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The current release of the Yocto Project supports the Eclipse IDE plug-in
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to make developing software easier for the application developer.
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The plug-in provides capability extensions to the graphical IDE to allow
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for cross compilation, deployment and execution of the output in a QEMU
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for cross compilation, deployment and execution of the application within a QEMU
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emulation session.
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Support of the Eclipse plug-in also allows for cross debugging and
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profiling.
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Additionally, the Eclipse plug-in provides a suite of tools
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that allows the developer to perform remote profiling, tracing, collection of
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power data, collection of latency data and collection of performance data.
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power consumption data, collection of latency data and collection of performance data.
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</para>
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<note>
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The current release of the Yocto Project no longer supports the Anjuta plug-in.
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</para>
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<para>
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The QEMU images shipped with the Yocto Project contain complete toolchains
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native to specific target architectures.
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native to their target architectures.
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This support allows you to develop applications within QEMU similar to the way
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you would using a normal host development system.
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</para>
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</para>
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<para>
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Several mechanisms exist that let you connect into the system running on the
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Several mechanisms exist that let you connect to the system running on the
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QEMU emulator:
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<itemizedlist>
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<listitem><para>QEMU provides a framebuffer interface that makes standard
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