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Julian Pidancet
7edf5cff9c
This patch introduces a distro feature which enables gcc to produce both 32bit and 64bit code, and enables binutils to operate on both 32bit and 64bit binaries. It differs from multilib toolchains in that it does not require to compile a version of the libc for each architecture variant. However, the code produced for the secondary architecture will not be linkable against the libc. v2: - Renamed the feature name from "biarch" to "multiarch". The GCC installation manual claims that the mips-linux can be made a tri-arch compiler (http://gcc.gnu.org/install/configure.html) - For x86_64, the compiler is made bi-arch by default, so nothing has to be done in particular. - I analyzed the gcc/config.gcc from GCC sources and added in this patch all the architectures that could be made biarch with the version of gcc currently used in OE, which are powerpc, and sparc, in addition to x86. mips and s390 will probably be supported in future versions of gcc. For x86 and sparc, only the --enable-targets=all option is valid to make this work (this option doesn't have any other side effects than making the compiler bi-arch). For powerpc, I used the --enable-targets=powerpc64 option (although 'all' also works). Note: - Untested on powerpc and sparc. But I believe it works the same as with x86. - gcc in meta-toolchain is also made multiarch. (From OE-Core rev: 99e295ef30ba02db3966c66619807c037ef5089f) Signed-off-by: Julian Pidancet <julian.pidancet@gmail.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/community/documentation
For information about OpenEmbedded see their website:
http://www.openembedded.org/