d0c615e51e
The bitbake wrapper script is set up such that the -p (--parse-only) command line option is not executed under pseudo, and it sets the PSEUDO_BUILD variable to indicate whether or not pseudo is being used. Since PSEUDO_BUILD is allowed through into the environment via BB_ENV_EXTRAWHITE it influences the data hash and thus if you run "bitbake -p" and then run bitbake again to actually build something, the change to PSEUDO_BUILD causes the cache from the -p execution not to be used. This is fixed simply by adding PSEUDO_BUILD to BB_HASHCONFIG_WHITELIST in bitbake.conf so that it doesn't influence the data hash. Fixes [YOCTO #2600]. (From OE-Core rev: 1e50225df2d6b5f10c5648703282235a11b1efb3) Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.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 = "") and contains only emulated machine support.
For information about OpenEmbedded, see the OpenEmbedded website: http://www.openembedded.org/