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kernel-yocto: do_kernel_configme: Fix silent sysroot poisoning error 

do_kernel_configme calls merge_config.sh (installed in the sysroot by
the kern-tools-native recipe) which may invoke the compiler to complete
the configuration process.

Depending on the build (and dependencies), this may error due to sysroot poisoning [1].

The errors are similar to:

  make[1]: Entering directory '4.1+gitAUTOINC+a7e53ecc27-r0/linux-x64-standard-build' HOSTCC  scripts/basic/fixdep
  work-shared/x64/kernel-source/scripts/basic/fixdep.c:106:23: fatal error: sys/types.h: No such file or directory
  compilation terminated.
  make[2]: *** [work-shared/x64/kernel-source/scripts/basic/Makefile:22: scripts/basic/x86_64-nilrt-linux-fixdep] Error 1

Adding $TOOLCHAIN_OPTIONS to $CFLAGS before calling merge_configs.sh
fixes the error because $TOOLCHAIN_OPTIONS defines the sysroot and make
uses it to correctly compile & fill all missing kernel config options.

[1] http://lists.openembedded.org/pipermail/openembedded-core/2014-October/098253.html

(From OE-Core rev: 4b770d62472d1b1a26366de0a1742db240aa5239)

Signed-off-by: Ioan-Adrian Ratiu <adrian.ratiu@ni.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Ioan-Adrian Ratiu 2016-08-30 12:49:06 -04:00 committed by Richard Purdie
parent 5ea48fa5ee
commit d1528403d5
1 changed files with 1 additions and 1 deletions
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2
meta/classes/kernel-yocto.bbclass
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@ -255,7 +255,7 @@ do_kernel_configme() {
bbfatal_log "Could not find configuration queue (${meta_dir}/config.queue)"
fi
ARCH=${ARCH} merge_config.sh -O ${B} ${config_flags} ${configs} > ${meta_dir}/cfg/merge_config_build.log 2>&1
CFLAGS="${CFLAGS} ${TOOLCHAIN_OPTIONS}" ARCH=${ARCH} merge_config.sh -O ${B} ${config_flags} ${configs} > ${meta_dir}/cfg/merge_config_build.log 2>&1
if [ $? -ne 0 ]; then
bbfatal_log "Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
fi