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

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This commit is contained in:
Richard Purdie 2010-10-15 15:14:06 +01:00
parent 00e061b564
commit 4999f78874
9 changed files with 281 additions and 411 deletions

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xsltproc $(XSLTOPTS) -o bsp-guide.html $(XSL_XHTML_URI) bsp-guide.xml
tarball: html
tar -cvzf poky-ref-manual.tgz poky-ref-manual.html style.css screenshots/ss-sato.png poky-beaver.png poky-ref-manual.png
tar -cvzf poky-ref-manual.tgz poky-ref-manual.html style.css figures/yocto-project-transp.png
validate:
xmllint --postvalid --xinclude --noout poky-ref-manual.xml

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</para>
</section>
<section id="platdev-appdev-external-anjuta">
<title>Developing externally using the Anjuta plugin</title>
<section id="using-the-eclipse-and-anjuta-plug-ins">
<title>Using the Eclipse and Anjuta Plug-ins</title>
<para>
An Anjuta IDE plugin exists to make developing software within the Poky framework
easier for the application developer. It presents a graphical IDE from which the
developer can cross compile an application then deploy and execute the output in a QEMU
emulation session. It also supports cross debugging and profiling.
</para>
<!-- DISBALED, TOO BIG!
<screenshot>
<mediaobject>
<imageobject>
<imagedata fileref="screenshots/ss-anjuta-poky-1.png" format="PNG"/>
</imageobject>
<caption>
<para>The Anjuta Poky SDK plugin showing an active QEMU session running Sato</para>
</caption>
</mediaobject>
</screenshot>
-->
<para>
To use the plugin, a toolchain and SDK built by Poky is required along with Anjuta it's development
headers and the Anjuta plugin. The Poky Anjuta plugin is available to download as a tarball at the
<ulink url='http://labs.o-hand.com/anjuta-poky-sdk-plugin/'>OpenedHand labs</ulink> page or
directly from the Poky Git repository located at git://git.pokylinux.org/anjuta-poky; a web interface
to the repository can be accessed at <ulink url='http://git.pokylinux.org/?p=anjuta-poky.git;a=summary'/>.
</para>
<para>
See the README file contained in the project for more information on dependencies and building
the plugin. If you want to disable remote gdb debugging, please pass --diable-gdb-integration
switch when doing configure.
Yocto Project supports both Anjuta and Eclipse IDE plug-ins to make developing software
easier for the application developer. The plug-ins provide capability
extensions to the graphical IDE allowing for cross compilation,
deployment and execution of the output in a QEMU emulation session.
Support of these plug-ins also supports cross debugging and
profiling. Additionally, the Eclipse plug-in provides a suite of tools
that allows the developer to perform remote profiling, tracing, collection of
power data, collection of latency data and collection of performance data.
</para>
<section id="platdev-appdev-external-anjuta-setup">
<title>Setting up the Anjuta plugin</title>
<section id="the-eclipse-plug-in">
<title>The Eclipse Plug-in</title>
<para>
To use the Eclipse plug-in, a toolchain and SDK built by Poky is required along with
the Eclipse Framework (Helios 3.6).
To install the plug-in you need to be in the Eclipse IDE and select
the following menu:
<literallayout class='monospaced'>
Help -> Install New Software
</literallayout>
Specify the target URL as http://yocto./download (real link needed).
</para>
<para>
If you want to download the source code for the plug-in you can find it in the Poky
git repository, which has a web interface, and is located at
<ulink url="http://git.pokylinux.org/cgit.cgi/eclipse-poky"></ulink>.
</para>
<section id="installing-and-setting-up-the-eclipse-ide">
<title>Installing and Setting up the Eclipse IDE</title>
<para>
If you don't have the Eclipse IDE (Helios 3.6) on your system you need to
download and install it from <ulink url="http://www.eclipse.org/downloads"></ulink>.
Choose the Eclipse Classic, which contains the Eclipse Platform, Java Development
Tools (JDT), and the Plug-in Development Environment.
</para>
<para>
NOTE: Due to the Java Virtual Machine's garbage collection (GC) process the
permanent generation space (PermGen) is not cleaned up. This space is used
to store meta-data descriptions of classes. The default value is set too small
and it could trigger an out of memory error like the following:
<literallayout class='monospaced'>
Java.lang.OutOfMemoryError: PermGen space
</literallayout>
This error causes the applications to hang.
</para>
<para>
To fix this issue you can use the <command>-vmargs</command>
option when you start Eclipse to increase the size of the permenant generation space:
<literallayout class='monospaced'>
Eclipse -vmargs -XX:PermSize=256M
</literallayout>
</para>
<para>
The Eclipse plug-in depends several Eclipse projects plug-ins:
Eclipse C/C++ Development Tools (CDT), Autotools support for CDT (Incubation) and Target
Management (RSE).
</para>
<para>
After installing Eclipse and bringing up the IDE for the first
time you need to be sure the following four sites are available by adding them.
</para>
<itemizedlist>
<listitem>CDT - http://download.eclipse.org/tools/cdt/releases/helios</listitem>
<listitem>Helios - http://download.eclipse.org/releases/helios</listitem>
<listitem>Target Management
3.2 Updates - http://download.eclipse.org/dsdp/tm/updates/3.2</listitem>
<listitem>The Eclipse Project Updates -
http://download.eclipse.org/eclipse/updates/3.6</listitem>
</itemizedlist>
<para>
Once these sites are available do the following:
<itemizedlist>
<listitem>Use the "Work with:" drop down list and
select "All Available Sites--"</listitem>
<listitem><emphasis>For CDT and Autotools support:</emphasis> Expand the
"Programming Languages" list and select "Autotools support for CDT
(Incubation)" and "C/C++ Development Tools". Click "Next" and complete
the update.</listitem>
<listitem><emphasis>For RSE support:</emphasis> Select "TM and
RSE Main Features". Click "Next" and complete the update.</listitem>
</itemizedlist>
</para>
</section>
<para>Extract the tarball for the toolchain into / as root. The
toolchain will be installed into
<filename class="directory">/opt/poky</filename>.</para>
<section id="installing-the-yocto-plug-in">
<title>Installing the Yocto Plug-in</title>
<para>
Once you have the Eclipse IDE installed and configure you need to install the
Yocto plug-in. You do this similar to installing the Eclipse plug-ins in the
previous section.
</para>
<para>
Do the following to install the Yocto plug-in into the Eclipse IDE:
<itemizedlist>
<listitem>Select the "Help -> Install New Software" item.</listitem>
<listitem>In the "Work with:" area click "Add..." and enter the URL for
the Yocto plug-in (we need to supply this URL).</listitem>
<listitem>Finish out the installation of the update similar to any other
Eclipse plug-in.</listitem>
</itemizedlist>
</para>
</section>
<section id="configuring-yocto-eclipse-plug-in">
<title>Configuring Yocto Eclipse plug-in</title>
<para>
To configure the Yocto Eclipse plug-in you need to select the mode and then the
architecture with which you will be working. Start by selecting "Preferences"
from the "Window" menu and then selecting "Yocto SDK".
</para>
<para>
If you normally will use an installed Yocto
SDK (under /opt/poky) select “SDK Root Mode”. Otherwise, if your crosstool chain
and sysroot are within your poky tree, select “Poky Tree Mode”.
If you are in SDK Root Mode you will need to provide your poky tree path, for
example, $&lt;Poky_tree&gt;/build/.
</para>
<para>
Now you need to select the architecture.
Use the drop down list and select the architecture that youll be primarily
working against.
For target option, select your typical target QEMU vs External HW. If you
choose QEMU, youll need to specify your QEMU kernel file with full path and the
rootfs mount point. Yocto QEMU boots off user mode NFS, Please refer to QEMU
section for how to set it up. (Section TBD)
</para>
<para>
Save all your settings and they become your defaults for every new Yocto project
created using the Eclipse IDE.
</para>
</section>
<para>To use the plugin, first open or create an existing
project. If creating a new project the "C GTK+" project type
will allow itself to be cross-compiled. However you should be
aware that this uses glade for the UI.</para>
<section id="using-the-yocto-eclipse-plug-in">
<title>Using the Yocto Eclipse Plug-in</title>
<para>
As an example, this section shows you how to cross-compile a Yocto C autotools
based project, deploy it into QEMU, and then run the debugger against it.
You need to configure the project, trigger <command> autogen.sh</command>, build
the image, start QEMU, and then debug.
</para>
<orderedlist>
<listitem>Creating a Yocto Autotools Based Project Using a Template:
Get to the Wizard selection by selecting the File -> New -> Project
menu. Expand "C/C++" and select "C Project". Click "Next" and select a template
to start with, for example "Hello World ANSI C Project". Complete the steps
to create a new Yocto autotools based project using this template.</listitem>
<listitem>Specify Specific Toolchain Configurations: By default the project
uses the Yocto preferences settings as defined using the procedure in
<link linkend="configuring-yocto-eclipse-plug-in"> the previous section</link>.
If there are any specific setup requirements for the newly created project
you need to reconfigure the Yocto plug-in through the menu selection
Project -> Invoke Yocto Tools -> Reconfigure Yocto. Use this dialogue
to specify specific toolchain and QEMU setups for the project.</listitem>
<listitem>Building the Project: Trigger <command>autogen.sh</command> through
Project -> Reconfigure Project. Then build the project using
Project -> Build.</listitem>
<listitem>Starting QEMU: Use the Run -> External Tools menu and see if there is
a QEMU instance for the desired target. If there is click on the instance
to start QEMU. If your target is not there then click "External Tools
Configuration". You should find an instance of QEMU for your architecture
under the entry under "Program". After the boot completes you are ready to
deploy the image into QEMU.</listitem>
<listitem>Debugging: To bring up your remote debugging configuration in the
right-hand window highlight your project in “Project Explorer”, select
the Run -> Debug Configurations menu item and expand “C/C++ Remote Application”.
Next, select projectname_ gdb_target-poky-linux.
You need to be sure that there is an
entry for the remote target you want to deploy and cross debug with. If there
is no entry then click "New..." to bring up the wizard. Using the wizard
select TCF and enter the IP address of you remote target in the
“Host name:” field. Back in the remote debug configure window,
you need to specify the absolute path for the program on the remote target
in the “Remote Absolute File Path for C/C++ Application” field. By default,
the program deploys into the remote target. If you don't want this then check
“Skip download to target path”. Finally, click "Debug” to start the remote
debugging session.</listitem>
</orderedlist>
</section>
<para>To activate the plugin go to
<menuchoice><guimenu>Edit</guimenu><guimenuitem>Preferences</guimenuitem></menuchoice>,
then choose <guilabel>General</guilabel> from the left hand side. Choose the
Installed plugins tab, scroll down to <guilabel>Poky
SDK</guilabel> and check the
box. The plugin is now activated but first it must be
configured.</para>
<section id="using-yocto-eclipse-plug-in-remote-tools-suite">
<title>Using Yocto Eclipse plug-in Remote Tools Suite</title>
<para>
Remote tools let you do things like perform system profiling, kernel tracing,
examine power consumption, and so forth. To see and access the remote tools use the
Window -> YoctoTools menu.
</para>
<para>
Once you pick a tool you need to configure it for the remote target. Every tool
needs to have the connection configured. You have to select an existing TCF-based
RSE connection to the remote target. If one does not exist you need to create one
by clicking "New"
</para>
<para>
Here are some specifics about the remote tools:
<itemizedlist>
<listitem>Oprofile: Selecting this tool causes the oprofile-server on the remote
target to launch on the local host machine. To use the oprofile the oprofile-viewer
must be installed on the local host machine and the oprofile-server must be
installed on the remote target.</listitem>
<listitem>lttng: Selecting this tool runs ustrace on the remote target, transfers
the output data back to the local host machine and uses lttv-gui to graphically
display the output. To use this tool the lttv-gui must be installed on the
local host machine. See <ulink url="http://lttng.org/files/ust/manual/ust.html">
</ulink> for information on how to use <command>lttng</command> to trace an
application.
<para>
For "Application" you must supply the absolute path name to the application to
be traced by user mode lttng. For example, typing <command>/path/to/foo"
</command> triggers <command>usttrace /path/to/foo</command> on the
remote target to trace the program <command>/path/to/foo</command>.
</para>
<para>
"Argument" is passed to "usttrace" running on the remote target.
</para>
</listitem>
<listitem>powertop: Selecting this tool runs <command>powertop</command> on the
remote target machine and displays the result in a new view called "powertop".
<para>
"Time to gather data(sec):" is the time passed in seconds before data is
gathered from the remote target for analysis.
</para>
<para>
"show pids in wakeups list:" corresponds to the <command>-p</command>
argument passed to <command>powertop</command>
</para>
</listitem>
<listitem>latencytop and perf: The <command>latencytop</command> identifies
system latency, while <command>perf</command> monitors the system's performance
counter registers. Selecting either of these tools causes an RSE
terminal view to appear in which you can run the tools. Both tools refresh the
entire screen to display results while they run.</listitem>
</itemizedlist>
</para>
</section>
</section>
<section id="platdev-appdev-external-anjuta-configuration">
<title>Configuring the Anjuta plugin</title>
<para>The configuration options for the SDK can be found by choosing
the <guilabel>Poky SDK</guilabel> icon from the left hand side. The following options
need to be set:</para>
<itemizedlist>
<listitem><para><guilabel>SDK root</guilabel>: If we use external toolchain, we need to set SDK root.
this is the root directory of the SDK's sysroot. For an i586 SDK this will be <filename
class="directory">/opt/poky/</filename>.
This directory will contain directories named like "bin",
"include", "var", etc. under your selected target architecture subdirectory<filename class="directory">
/opt/poky/sysroot/i586-poky-linux/</filename>. Needed cross compile tools are under
<filename class ="directory">/opt/poky/sysroot/i586-pokysdk-linux/</filename>
</para></listitem>
<listitem><para><guilabel>Poky root</guilabel>: If we have local poky build tree, we need to set the Poky root.
this is the root directory of the poky build tree, if you build your i586 target architecture
under the subdirectory of build_x86 within your poky tree, the Poky root directory should be
<filename class="directory">${Poky_tree}/build_x86/</filename>.
</para></listitem>
<listitem><para><guilabel>Target Architecture</guilabel>: this is the cross compile
triplet, e.g. "i586-poky-linux". This target triplet is the prefix extracted from
the set up script file name. For examle, "i586-poky-linux" is extracted from set up script file
<filename>/opt/poky/environment-setup-i586-poky-linux</filename>
</para></listitem>
<listitem><para><guilabel>Kernel</guilabel>: use the file chooser to select the kernel
to use with QEMU</para></listitem>
<listitem><para><guilabel>Root filesystem</guilabel>: use the file chooser to select
the root filesystem directory, this is the directory where you use "poky-extract-sdk" command to
extract the poky-image-sdk tarball.</para></listitem>
</itemizedlist>
<!-- DISBALED, TOO BIG!
<screenshot>
<mediaobject>
<imageobject>
<imagedata fileref="screenshots/ss-anjuta-poky-2.png" format="PNG"/>
</imageobject>
<caption>
<para>Anjuta Preferences Dialog</para>
</caption>
</mediaobject>
</screenshot>
-->
</section>
<section id="platdev-appdev-external-anjuta-usage">
<title>Using the Anjuta plugin</title>
<para>As an example, cross-compiling a project, deploying it into
QEMU and running a debugger against it and then doing a system
wide profile.</para>
<para>Choose <menuchoice><guimenu>Build</guimenu><guimenuitem>Run
Configure</guimenuitem></menuchoice> or
<menuchoice><guimenu>Build</guimenu><guimenuitem>Run
Autogenerate</guimenuitem></menuchoice> to run "configure"
(or to run "autogen") for the project. This passes command line
arguments to instruct it to cross-compile.</para>
<para>Next do
<menuchoice><guimenu>Build</guimenu><guimenuitem>Build
Project</guimenuitem></menuchoice> to build and compile the
project. If you have previously built the project in the same
tree without using the cross-compiler you may find that your
project fails to link. Simply do
<menuchoice><guimenu>Build</guimenu><guimenuitem>Clean
Project</guimenuitem></menuchoice> to remove the old
binaries. You may then try building again.</para>
<para>Next start QEMU by using
<menuchoice><guimenu>Tools</guimenu><guimenuitem>Start
QEMU</guimenuitem></menuchoice>, this will start QEMU and
will show any error messages in the message view. Once Poky has
fully booted within QEMU you may now deploy into it.</para>
<para>Once built and QEMU is running, choose
<menuchoice><guimenu>Tools</guimenu><guimenuitem>Deploy</guimenuitem></menuchoice>,
this will install the package into a temporary directory and
then copy using rsync over SSH into the target. Progress and
messages will be shown in the message view.</para>
<para>To debug a program installed into onto the target choose
<menuchoice><guimenu>Tools</guimenu><guimenuitem>Debug
remote</guimenuitem></menuchoice>. This prompts for the
local binary to debug and also the command line to run on the
target. The command line to run should include the full path to
the to binary installed in the target. This will start a
gdbserver over SSH on the target and also an instance of a
cross-gdb in a local terminal. This will be preloaded to connect
to the server and use the <guilabel>SDK root</guilabel> to find
symbols. This gdb will connect to the target and load in
various libraries and the target program. You should setup any
breakpoints or watchpoints now since you might not be able to
interrupt the execution later. You may stop
the debugger on the target using
<menuchoice><guimenu>Tools</guimenu><guimenuitem>Stop
debugger</guimenuitem></menuchoice>.</para>
<para>It is also possible to execute a command in the target over
SSH, the appropriate environment will be be set for the
execution. Choose
<menuchoice><guimenu>Tools</guimenu><guimenuitem>Run
remote</guimenuitem></menuchoice> to do this. This will open
a terminal with the SSH command inside.</para>
<para>To do a system wide profile against the system running in
QEMU choose
<menuchoice><guimenu>Tools</guimenu><guimenuitem>Profile
remote</guimenuitem></menuchoice>. This will start up
OProfileUI with the appropriate parameters to connect to the
server running inside QEMU and will also supply the path to the
debug information necessary to get a useful profile.</para>
<section id="external-development-using-the-anjuta-plug-in">
<title>External Development Using the Anjuta Plug-in</title>
<para>
(Note: We will stop Anjuta plug-in support after Yocto project 0.9 release. Its source
code can be downloaded from git respository listed below, and free for the community to
continue supporting it moving forward.)
</para>
</section>
</section>

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@ -4,43 +4,39 @@
<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'>

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