08f9fbbc97
A recent commit fixed perf build failures with a change that duplicates
a fix that can be found in kernels after 4.1. Unfortunately there is a
conflict between these two fixes and we see perf build failures when
building perf in kernels that contain the fix already. The problem is
that the fix from the recipe modifies the location of .config-detected
to $(OUTPUT).config-detected. In a 4.2 kernel the location will be
changed to $(OUTPUT)$(OUTPUT).config-detected.
We change the recipe to require a space in the pattern to only change
kernel sources that do not already place file in $(OUTPUT).
The recent commit that introduced the build failure is:
commit ea9016b60b
Author: Richard Purdie <richard.purdie@linuxfoundation.org>
Date: Sat Jul 25 14:37:58 2015 +0100
perf: Fix config file conflict with 4.1 kernels
If you setup mutlitlibs and then:
bitbake perf libb32-perf
bitbake perf libb32-perf -c cleansstate
bitbake perf libb32-perf
you will see races where the two builds get confused about which directory
they should be using and they corrupt each other.
The issue is that .config-detected is created in ${S}, not $(OUTPUT).
We can fix this by moving the file to $(OUTPUT).
[YCOTO #8043]
(From OE-Core rev: 00608cffffb586e8d2a2075117e710113c471448)
(From OE-Core rev: 57df1ebd910e42af47a0039830a60f41a3bd29b6)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
The commit in the kernel source that fixes the problem from kernel side is:
commit 642273795fa81da11290ffa90bce6ff242f2a7bb
Author: Aaro Koskinen <aaro.koskinen@nokia.com>
Date: Wed Jul 1 14:54:42 2015 +0300
perf tools: Create config.detected into OUTPUT directory
Create config.detected into OUTPUT directory instead of source
directory.
This fixes parallel builds that share the same source directory.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1435751683-18500-1-git-send-email-aaro.koskinen@nokia.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
(From OE-Core rev: 6546771a502a09c63e33679be8784818be0ef93b)
Signed-off-by: Reinette Chatre <reinette.chatre@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 = "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-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.