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Review changes applied. 

1. Added Richard Purdie's general editing feedback to the "Welcome" and
"Introducing the Yocto Project Development Environment" sections.

2. Added Kevin Tian's feedback:  1) changed "Sudo" to "sudo", 2) reversed
the order of the sample "cd" and "source" commands since the "source" command
builds the directory structure first so changing to the directory before running
"source" made no sense, 3) removed the "bitbake qemu-native" command.

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
This commit is contained in:
Scott Rifenbark 2010-10-20 09:47:09 -07:00 committed by Richard Purdie
parent 11686d07a2
commit 5434a49f3d
1 changed files with 54 additions and 26 deletions
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80
documentation/yocto-project-qs/yocto-project-qs.xml
View File

@ -12,23 +12,35 @@
<title>Welcome!</title>
<para>
Welcome to the Yocto Project!
The Yocto Project is an open-source Linux development environment.
This short document will give you some basic information about the environment as well as let you experience it in its simplest form.
After reading this document you will have a basic understanding of what the Yocto Project is and how to work within it.
This document also steps you through a simple example showing you how to build a small image and run it using the QEMU emulator.
The Yocto Project (YP) is an open-source collaboration project focused on embedded Linux
developers.
Amongst other things, YP uses the Poky build tool to construct complete Linux images.
</para>
<para>
For complete information on the Yocto Project you should check out the <ulink url='http://www.yoctolinux.org'>Public Yocto Website</ulink>.
You can find the latest builds, breaking news, full development documentation, and a rich Yocto Project Development Community into which you can tap.
This short document will give you some basic information about the environment as well
as let you experience it in its simplest form.
After reading this document you will have a basic understanding of what the Yocto Project is
and how to use some of its core components.
This document steps you through a simple example showing you how to build a small image
and run it using the QEMU emulator.
</para>
<para>
For complete information on the Yocto Project you should check out the
<ulink url='http://www.yoctolinux.org'>Yocto Project Website</ulink>.
You can find the latest builds, breaking news, full development documentation, and a
rich Yocto Project Development Community into which you can tap.
</para>
</section>
<section id='yp-intro'>
<title>Introducing the Yocto Project Development Environment</title>
<para>
Yocto Project is an open source development environment that creates Linux-based images suitable for many types of devices (large or small) based on architectures such as x86, x86-64, Xeon, ARM, and MIPS as well as PowerPC and device emulation.
You can use Yocto Project to design, develop, build, debug, simulate, and test the complete software stack using Linux, the X Window System, GNOME Mobile-based application frameworks, and Qt frameworks.
The Yocto Project through the Poky build tool provides an open source development
environment targeting the ARM, MIPS, PowerPC and x86 architectures for a variety of
platforms including x86-64 and emulated ones.
You can use components from the the Yocto Project to design, develop, build, debug, simulate,
and test the complete software stack using Linux, the X Window System, GNOME Mobile-based
application frameworks, and Qt frameworks.
</para>
<para></para>
@ -52,27 +64,38 @@
<para>Provides an open source Linux kernel along with a set of system commands and libraries suitable for the embedded environment.</para>
</listitem>
<listitem>
<para>Makes available system components such as X11, Matchbox, GTK+, Pimlico, Clutter, and Qt (among others) so you can create a richer user interface experience on devices that use displays or have a GUI.
For devices that don't have a GUI or display you simply would not employ these components.</para>
<para>Makes available system components such as X11, Matchbox, GTK+, Pimlico, Clutter,
GuPNP and Qt (among others) so you can create a richer user interface experience on
devices that use displays or have a GUI.
For devices that don't have a GUI or display you simply would not employ these
components.</para>
</listitem>
<listitem>
<para>Creates a focused and stable subset of OpenEmbedded on which you can easily and reliably build and develop.</para>
<para>Creates a focused and stable core compatible with the OpenEmbedded
project with which you can easily and reliably build and develop.</para>
</listitem>
<listitem>
<para>Fully supports a wide range of hardware and device emulation through the QEMU Emulator or other supported emulators.</para>
<para>Fully supports a wide range of hardware and device emulation through the QEMU
Emulator.</para>
</listitem>
</itemizedlist>
<para>
Yocto Project generates file system 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.
Yocto Project can generate images for many kinds of devices.
However, the standard example machines target QEMU full system emulation for x86, ARM, MIPS, and PPC based architectures as well as specific hardware such as the Intel Desktop Board DH55TC.
Because an image developed with Yocto Project can boot inside a QEMU emulator, the development environment works nicely as a test platform for developing embedded software.
However, the standard example machines target QEMU full system emulation for x86, ARM, MIPS,
and PPC based architectures as well as specific hardware such as the Intel Desktop Board
DH55TC.
Because an image developed with Yocto Project can boot inside a QEMU emulator, the
development environment works nicely as a test platform for developing embedded software.
</para>
<para>
Another important Yocto Project feature is the Sato component.
The optional Sato component, a GNOME mobile-based user interface environment well suited for devices with restricted screen sizes, sits neatly on top of any device using the GNOME Mobile Stack providing a well defined user experience.
Another important Yocto Project feature is the Sato reference User Interface.
This optional GNOME mobile-based UI, which is intended for devices with
resolution but restricted size screens, sits neatly on top of a device using the
GNOME Mobile Stack providing a well defined user experience.
Implemented in its own layer, it makes it clear to developers how they can implement ]
their own UIs on top of Yocto Linux.
</para>
</section>
@ -113,7 +136,7 @@ For devices that don't have a GUI or display you simply would not employ these c
</para>
<literallayout class='monospaced'>
Sudo apt-get install sed wget cvs subversion git-core coreutils
sudo apt-get install sed wget cvs subversion git-core coreutils
unzip texi2html texinfo libsdll.2-dev docbook-utils gawk
python-pysqlite2 diffstat help2man make gcc build-essential
g++ desktop-file-utils chrpath libgl1-mesa-dev libglu1-mesa-dev
@ -130,8 +153,10 @@ For devices that don't have a GUI or display you simply would not employ these c
<title>Yocto Project Release</title>
<para>
The latest releases for Yocto Project are kept at http://yoctoproject.org/releases.
Nightly and developmental builds are also maintained. However, for this document a released version of Yocto Project is used.
The latest releases for Yocto Project are kept at
<ulink url="http://yoctoproject.org/releases"></ulink>.
Nightly and developmental builds are also maintained. However, for this
document a released version of Yocto Project is used.
</para>
</section>
</section>
@ -182,9 +207,8 @@ For devices that don't have a GUI or display you simply would not employ these c
<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-build
$ source green-3.3/poky-init-build-env green-3.3-build
$ bitbake qemu-native
$ cd green-3.3-build
$ bitbake poky-image-sato
$ poky-qemu qemux86
</literallayout>
@ -202,15 +226,19 @@ For devices that don't have a GUI or display you simply would not employ these c
</listitem>
<listitem>
<para>
After changing to the build directory the source command sets up the Yocto Project build environment.
The next two commands create the directory and place you there.
The build directory contains all the object files used during the build.
The default build directory is poky-dir/build.
Note that you can change the target architecture by editing the
<command>&lt;build_directory&gt;/conf/local.conf</command> file.
By default the target architecture is qemux86.
</para>
</listitem>
<listitem>
<para>
The two bitbake commands build the OS image and the emulator for the target.
Here poky-image-sato is the name of the target. The qemu-native target is the customized QEMU Emulator.</para>
The bitbake command builds the OS image for the target.
Here poky-image-sato is the name of the target.
</para>
</listitem>
<listitem>
<para>