documentation/pokt-ref-manual: Update with Yocto branding

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
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Richard Purdie
2010-10-15 15:14:06 +01:00
parent 00e061b564
commit 4999f78874
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<chapter id='intro'>
<title>Introduction</title>
<section id='intro-what-is'>
<section id='intro-welcome'>
<title>Welcome to Poky!</title>
<para>
Poky is the the build tool in Yocto Project.
It is at the heart of Yocto Project.
You use Poky within Yocto Project to build the images (kernel software) for targeted hardware.
</para>
<para>
Before jumping into Poky you should have an understanding of Yokto Project.
Be sure you are familiar with the information in the Yocto Project Quick Start.
You can find this documentation on the public <ulink rul='http://yoctoproject.org/'>Yocto Project Website</ulink>.
</para>
</section>
<section>
<title>What is Poky?</title>
<para>
Poky is an open source platform build tool. It is a complete
software development environment for the creation of Linux
devices. It aids the design, development, building, debugging,
simulation and testing of complete modern software stacks
using Linux, the X Window System and GNOME Mobile
based application frameworks. It is based on <ulink
url='http://openembedded.org/'>OpenEmbedded</ulink> but has
been customised with a particular focus.
Poky provides an open source Linux, X11, Matchbox, GTK+, Pimlico, Clutter, and other <ulink url='http://gnome.org/mobile'>GNOME Mobile</ulink> technologies based full platform build tool within Yocto Project.
It creates a focused, stable, subset of OpenEmbedded that can be easily and reliably built and developed upon.
Poky fully supports a wide range of x86 ARM, MIPS and PowerPC hardware and device virtulisation.
</para>
<para> Poky was setup to:</para>
<itemizedlist>
<listitem>
<para>Provide an open source Linux, X11, Matchbox, GTK+, Pimlico, Clutter, and other <ulink url='http://gnome.org/mobile'>GNOME Mobile</ulink> technologies based full platform build and development tool.</para>
</listitem>
<listitem>
<para>Create a focused, stable, subset of OpenEmbedded that can be easily and reliably built and developed upon.</para>
</listitem>
<listitem>
<para>Fully support a wide range of x86, ARM, MIPS, PowerPC hardware and device virtulisation</para>
</listitem>
</itemizedlist>
<para>
Poky is primarily a platform builder which generates filesystem images
based on open source software such as the Kdrive X server, the Matchbox
window manager, the GTK+ toolkit and the D-Bus message bus system. Images
for many kinds of devices can be generated, however the standard example
machines target QEMU full system emulation(x86, ARM, MIPS and PowerPC) and the ARM based
Sharp Zaurus series of devices. Poky's ability to boot inside a QEMU
machines target QEMU full system emulation(x86, ARM, MIPS and PowerPC) and
real reference boards for each of these architectures.
Poky's ability to boot inside a QEMU
emulator makes it particularly suitable as a test platform for development
of embedded software.
</para>
@@ -76,222 +72,32 @@
<section id='intro-manualoverview'>
<title>Documentation Overview</title>
<para>
The handbook is split into sections covering different aspects of Poky.
The <link linkend='usingpoky'>'Using Poky' section</link> gives an overview
of the components that make up Poky followed by information about using and
debugging the Poky build system. The <link linkend='extendpoky'>'Extending Poky' section</link>
gives information about how to extend and customise Poky along with advice
on how to manage these changes.
The <link linkend='bsp'>'Board Support Packages (BSP) - Developers Guide' section</link>
gives information about how to develop BSP such as the common layout, the
software hardware configuration options etc.
The <link linkend='platdev'>'Platform Development with Poky'
section</link> gives information about interaction between Poky and target
hardware for common platform development tasks such as software development,
debugging and profiling. The rest of the manual
consists of several reference sections each giving details on a specific
section of Poky functionality.
The Poky User Guide is split into sections covering different aspects of Poky.
The <link linkend='usingpoky'>'Using Poky' section</link> gives an overview of the components that make up Poky followed by information about using Poky and debugging images created in Yocto Project.
The <link linkend='extendpoky'>'Extending Poky' section</link> gives information about how to extend and customise Poky along with advice on how to manage these changes.
The <link linkend='platdev'>'Platform Development with Poky' section</link> gives information about interaction between Poky and target hardware for common platform development tasks such as software development, debugging and profiling.
The rest of the manual consists of several reference sections each giving details on a specific section of Poky functionality.
</para>
<para>
This manual applies to Poky Release 3.3 (Green).
</para>
</section>
<section id='intro-requirements'>
<title>System Requirements</title>
<para>
We recommend Debian-based distributions, in particular a recent Ubuntu
release (10.04 or newer), as the host system for Poky. Nothing in Poky is
distribution specific and
other distributions will most likely work as long as the appropriate
prerequisites are installed - we know of Poky being used successfully on Redhat,
SUSE, Gentoo and Slackware host systems.
distribution specific and other distributions will most likely work as long
as the appropriate prerequisites are installed - we know of Poky being used
successfully on Redhat, SUSE, Gentoo and Slackware host systems.
For information on what you need to develop images using Yocto Project and Poky
you should see the Yocto Project Quick Start on the public
<ulink rul='http://yoctoproject.org/'>Yocto Project Website</ulink>.
</para>
<para>On a Debian-based system, you need the following packages installed:</para>
<itemizedlist>
<listitem>
<para>build-essential</para>
</listitem>
<listitem>
<para>python (version 2.6 or later)</para>
</listitem>
<listitem>
<para>diffstat</para>
</listitem>
<listitem>
<para>texinfo</para>
</listitem>
<listitem>
<para>texi2html</para>
</listitem>
<listitem>
<para>cvs</para>
</listitem>
<listitem>
<para>subversion</para>
</listitem>
<listitem>
<para>wget</para>
</listitem>
<listitem>
<para>gawk</para>
</listitem>
<listitem>
<para>help2man</para>
</listitem>
<listitem>
<para>chrpath</para>
</listitem>
<listitem>
<para>mercurial</para>
</listitem>
</itemizedlist>
<para>Furthermore if you wish to run an emulated Poky image using <ulink url='http://qemu.org'>QEMU</ulink> (as in the quickstart below) you will need the following packages installed:</para>
<itemizedlist>
<listitem>
<para>libgl1-mesa-dev</para>
</listitem>
<listitem>
<para>libglu1-mesa-dev</para>
</listitem>
<listitem>
<para>libsdl1.2-dev</para>
</listitem>
<listitem>
<para>bochsbios (only to run qemux86 images)</para>
</listitem>
</itemizedlist>
<para>
Debian users can add debian.o-hand.com to their APT sources (See
<ulink url='http://debian.o-hand.com'/>
for instructions on doing this) and then run <command>
"apt-get install qemu poky-depends poky-scripts"</command> which will
automatically install all these dependencies. Virtualisation images with
Poky and all dependencies can also easily be built if required.
</para>
<para>
Poky can use a system provided QEMU or build its own depending on how it's
configured. See the options in <filename>local.conf</filename> for more details.
</para>
</section>
<section id='intro-quickstart'>
<title>Quick Start</title>
<section id='intro-quickstart-build'>
<title>Building and Running an Image</title>
<para>
If you want to try Poky, you can do so in a few commands. The example below
checks out the Poky source code, sets up a build environment, builds an
image and then runs that image under the QEMU emulator in x86 system emulation mode:
</para>
<para>
<literallayout class='monospaced'>
$ wget http://pokylinux.org/releases/poky-green-3.3.tar.bz2
$ tar xjvf poky-green-3.3.tar.bz2
$ cd green-3.3/
$ source poky-init-build-env
$ bitbake poky-image-sato
$ bitbake qemu-native
$ runqemu qemux86
</literallayout>
</para>
<note>
<para>
This process will need Internet access, about 20 GB of disk space
available, and you should expect the build to take about 4 - 5 hours since
it is building an entire Linux system from source including the toolchain!
</para>
</note>
<para>
To build for other machines see the <glossterm><link
linkend='var-MACHINE'>MACHINE</link></glossterm> variable in build/conf/local.conf.
This file contains other useful configuration information and the default version
has examples of common setup needs and is worth
reading. To take advantage of multiple processor cores to speed up builds for example, set the
<glossterm><link linkend='var-BB_NUMBER_THREADS'>BB_NUMBER_THREADS</link></glossterm>
and <glossterm><link linkend='var-PARALLEL_MAKE'>PARALLEL_MAKE</link></glossterm> variables.
The images/kernels built by Poky are placed in the <filename class="directory">tmp/deploy/images</filename>
directory.
</para>
<para>
You could also run <command>"poky-qemu zImage-qemuarm.bin poky-image-sato-qemuarm.ext2"
</command> within the images directory if you have the poky-scripts Debian package
installed from debian.o-hand.com. This allows the QEMU images to be used standalone
outside the Poky build environment.
</para>
<para>
To setup networking within QEMU see the <link linkend='usingpoky-install-qemu-networking'>
QEMU/USB networking with IP masquerading</link> section.
</para>
</section>
<section id='intro-quickstart-qemu'>
<title>Downloading and Using Prebuilt Images</title>
<para>
Prebuilt images from Poky are also available if you just want to run the system
under QEMU. To use these you need to:
</para>
<itemizedlist>
<listitem>
<para>
Add debian.o-hand.com to your APT sources (See
<ulink url='http://debian.o-hand.com'/> for instructions on doing this)
</para>
</listitem>
<listitem>
<para>Install patched QEMU and poky-scripts:</para>
<para>
<literallayout class='monospaced'>
$ apt-get install qemu poky-scripts
</literallayout>
</para>
</listitem>
<listitem>
<para>
Download a Poky QEMU release kernel (*zImage*qemu*.bin) and compressed
filesystem image (poky-image-*-qemu*.ext2.bz2) which
you'll need to decompress with 'bzip2 -d'. These are available from the
<ulink url='http://pokylinux.org/releases/green-3.3/'>last release</ulink>
or from the <ulink url='http://autobuilder.pokylinux.org/'>autobuilder</ulink>.
</para>
</listitem>
<listitem>
<para>Start the image:</para>
<para>
<literallayout class='monospaced'>
$ poky-qemu &lt;kernel&gt; &lt;image&gt;
</literallayout>
</para>
</listitem>
</itemizedlist>
<note><para>
A patched version of QEMU is required at present. A suitable version is available from
<ulink url='http://debian.o-hand.com'/>, it can be built
by poky (bitbake qemu-native) or can be downloaded/built as part of the toolchain/SDK tarballs.
</para></note>
</section>
</section>
<section id='intro-getit'>