8bdaefd8bd
If the user hasn't inherited ccache.bbclass then CCACHE_DIR is set to $HOME. This was to work around a bug (#2554) for some users where if ccache < 3.1.10 (released 2014-10-19) was installed and enabled by default (i.e. /usr/bin/gcc is a symlink to ccache) and ccache.bbclass wasn't being inherited then autogen would fail to build because it sets $HOME to /dev/null during the build and ccache (prior to 3.1.10) would always create CCACHE_DIR even if it was disabled. As the default is $HOME/.ccache, this results in ccache attempting to create /dev/null/.ccache. However there was a mistake in this assignment of CCACHE_DIR - it should be $HOME/.ccache - as ccache will do cleanup inside CCACHE_DIR which will result in it deleting $HOME/tmp. In the future when we can assume that everyone has ccache 3.1.10 onwards this assignment can be deleted, but as of now we still support OpenSUSE 13.2 which ships with 3.1.9 so fix the assignment to be $HOME/.ccache. [ YOCTO #9798 ] (From OE-Core rev: 15eaf9cb1fa19036fe4442905876dae94070b04d) (From OE-Core rev: 8bcfed5a5d8c53a481028ef6e55008670cfbe8dc) Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> Signed-off-by: Armin Kuster <akuster@mvista.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 (built using a tool called combo-layer), patches against the various components should be sent to their respective upstreams:
bitbake: Git repository: http://git.openembedded.org/bitbake/ Mailing list: bitbake-devel@lists.openembedded.org
documentation: Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/yocto-docs/ Mailing list: yocto@yoctoproject.org
meta-poky, meta-yocto-bsp: Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/meta-yocto(-bsp) Mailing list: poky@yoctoproject.org
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.
Git repository: http://git.openembedded.org/openembedded-core/
Mailing list: 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.