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Chen Qi 680ff5552d busybox: add the ability to split the busybox binary
This patch enables us to split the busybox into two binaries, one
containing suid applications, and the other containing nosuid apps.

Add a variable, BUSYBOX_SPLIT_SUID, to control whether to split the
busybox binary into two parts. We default it to "1" to enable the
splitting, but users could still override it to disable the splitting.
After all, busybox has no internal support for this suid apps splitting,
so there might be users out there who want just one busybox binary.

The basic idea here is to build the busybox twice, each with the correct
configuration items. We extract the non-app part of the original .config
file, and merge this part with the suid-app part to form a .config which
contains only suid apps. The same strategy applies to the non-suid apps.

[YOCTO #4207]

(From OE-Core rev: e5a1442819dfb74e86a6f69da008ba6908c8bbc7)

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-06-25 17:44:52 +01:00
2013-06-21 14:23:31 +01:00
2012-08-22 14:05:00 +01:00

Poky
====

Poky is an integration of various components to form a complete prepackaged
build system and development environment. It features support for building
customised embedded device style images. There are reference demo images
featuring a X11/Matchbox/GTK themed UI called Sato. The system supports
cross-architecture application development using QEMU emulation and a
standalone toolchain and SDK with IDE integration.

Additional information on the specifics of hardware that Poky supports
is available in README.hardware. Further hardware support can easily be added
in the form of layers which extend the systems capabilities in a modular way.

As an integration layer Poky consists of several upstream projects such as 
BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information 
e.g. for the hardware support. Poky is in turn a component of the Yocto Project.

The Yocto Project has extensive documentation about the system including a 
reference manual which can be found at:
    http://yoctoproject.org/documentation

OpenEmbedded-Core is a layer containing the core metadata for current versions
of OpenEmbedded. It is distro-less (can build a functional image with
DISTRO = "") and contains only emulated machine support.

For information about OpenEmbedded, see the OpenEmbedded website:
    http://www.openembedded.org/

Where to Send Patches
=====================

As Poky is an integration repository, patches against the various components
should be sent to their respective upstreams.

bitbake:
    bitbake-devel@lists.openembedded.org

meta-yocto:
    poky@yoctoproject.org

Most everything else should be sent to the OpenEmbedded Core mailing list.  If
in doubt, check the oe-core git repository for the content you intend to modify.
Before sending, be sure the patches apply cleanly to the current oe-core git
repository.
    openembedded-core@lists.openembedded.org

Note: The scripts directory should be treated with extra care as it is a mix
      of oe-core and poky-specific files.
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