52295fa3de
The existing PACKAGE_ARCH = "all" mechanism of sharing packages is problematic with sstate since there are a variety of variables which have target specific values and the sstate package therefore correctly changes signature depending on the MACHINE setting. This patch creates a new "allarch" class which sets: PACKAGE_ARCH = "all" (as per the existing convention) INHIBIT_DEFAULT_DEPS = "1" (since its not target specific and therefore can't depend on the cross compiler or target libc) TARGET_ARCH = "all" TARGET_OS = "linux" TARGET_CC_ARCH = "none" (since these variables shouldn't change between the different packages and target compiler flags shouldn't be getting used) PACKAGE_EXTRA_ARCHS = "" (since we shouldn't be depending on any architecture specific package architectures) Not all PACKAGE_ARCH = "all" recipes can use this class since some run configure checks on the compiler. This means they have target specific components and therefore the "all" classification is incorrect. (From OE-Core rev: 26e5e5feb695864b11e47e24017e254c28f14494) 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/community/documentation
For information about OpenEmbedded see their website: http://www.openembedded.org/