b4e7ebe227
TARGET_LDFLAGS is currently defined in bitbake.conf to contain
${TARGET_LINK_HASH_STYLE} which differs between MIPS and other
targets. Since TARGET_LDFLAGS is an exported variable it affects the hash
of every shell task even if it is not used.
We don't want native recipe tasks to have different hashes purely because
they happen to have been built in order to satisfy dependencies for
different MACHINEs since this causes lots of churn in the native sysroot
when switching between MACHINEs.
Making native.bbclass override TARGET_LDFLAGS to use BUILD_LDFLAGS ensures
consistent hashes and is a sensible thing to be doing anyway.
Although they don't appear to have the same detrimental affect on task
hashes TARGET_CPPFLAGS, TARGET_CFLAGS and TARGET_CXXFLAGS should be
overridden too.
(From OE-Core rev: 05a70ac30b37cab0952f1b9df501993a9dec70da)
(From OE-Core rev: ac14407182fe1dec2e53179177344833d20eb2db)
Signed-off-by: Mike Crowe <mac@mcrowe.com>
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.