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Richard Purdie
ee4f52e279
If you build perf in tree /xxx/treea, then cleansstate perf and build it in /xxx/treeb having deleted treea, the build will fail, unable to find libc. The problem is that the --sysroot option passed in through CC is missing. This works fine if the default sysroot is ok, if it isn't, things will fail. In 1.7 we'll start poisoning the default sysroot in gcc to catch this kind of issue however that doesn't fix the problem with perf. The problem is that various Makefiles set CC = $(CROSS_COMPILE)gcc. The easist fix for now is to sed out the problematic Makefile lines. Its worth noting the tools/lib/traceevent Makefile has a much more funky way of setting CC which works for us and may be the way we need to fix the other Makefiles upstream. This fixes build failures we're occasionally seen on the autobuilders. (From OE-Core rev: d9bd1ac6d91de932dd3e2fcac9da77e0a7c09f55) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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 = "nodistro") 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.