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This fixes bug [YOCTO #2295] eglibc needs libc-posix-regexp-glibc & libc-libm-big enabled in its configuration to avoid following eglibc build issue. Thanks to Nitin for identifying the required features. ... | In file included from xregex.c:634:0: | xregex.c: In function 'byte_regex_compile': | xregex.c:3395:8: error: too few arguments to function 'findidx' | ../locale/weight.h:23:1: note: declared here ... The libc features added to support building meta-toolchain add 461KB to the C libraries. 320KB directly to libc (a 32% increase in size). If not building meta-toolchain, the user should be able to easily configure these out. Create a new variable to capture these dependencies, DISTRO_FEATURES_LIBC_TOOLCHAIN, keeping them separate from the core tiny requirements. Make it clear how to disable these if meta-toolchain is not needed. This patch has been tested by running the following for the qemux86 machine with DISTRO=poky-tiny: $ bitbake -c cleansstate eglibc $ bitbake meta-toolchain $ bitbake core-image-minimal The libc comparisons were made from core-image-minimal ext2 filesystems build before and after the applicaiton of this patch and Nitin's previous poky-tiny libc features patch in support of meta-toolchain: commit 8c48ab6183934fd32600997cc33e0cd3bf63139b Author: Nitin A Kamble <nitin.a.kamble@intel.com> Date: Mon Apr 9 15:15:01 2012 -0700 poky-tiny.conf: adjust eglibc options for poky-tiny Signed-off-by: Darren Hart <dvhart@linux.intel.com> CC: Nitin A. Kamble <nitin.a.kamble@intel.com> CC: Saul Wold <sgw@linux.intel.com> CC: Richard Purdie <richard.purdie@linuxfoundation.org> 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
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/