# git rev-parse -q --verify 1936f094e164cc13ebf17aba1d6b34e033e64188^{commit}
1936f094e164cc13ebf17aba1d6b34e033e64188
already have revision, skipping fetch
# git checkout -q -f -B kisskb 1936f094e164cc13ebf17aba1d6b34e033e64188
# git clean -qxdf
# < git log -1
# commit 1936f094e164cc13ebf17aba1d6b34e033e64188
# Author: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
# Date:   Wed Oct 31 22:48:13 2018 +0530
# 
#     selftests/powerpc: Fix compilation issue due to asm label
#     
#     We are using 'dscr_insn' as a label in inline asm to identify if a
#     SIGILL was generated by the mtspr instruction at that point. However,
#     with inline assembly, the compiler is still free to duplicate the asm
#     statement for optimization purposes, which results in the label being
#     defined twice with the error:
#             /tmp/ccerQCql.s:874: Error: symbol `dscr_insn' is already defined
#     
#     With different compiler versions, we may also see:
#             /tmp/ccJzLDlN.o:(.toc+0x0): undefined reference to `dscr_insn'
#     
#     Remove the use of the label in the inline assembly. Instead, just look
#     for the offending instruction in the signal handler.
#     
#     Fixes: d2bf793237b3 ("selftests/powerpc: Add test to verify rfi flush across a system call")
#     Reported-by: Breno Leitao <leitao@debian.org>
#     Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
#     Tested-by: Breno Leitao <leitao@debian.org>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < git log --format=%s --max-count=1 1936f094e164cc13ebf17aba1d6b34e033e64188
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  randconfig
KCONFIG_SEED=0x44847A8
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_CPU_BIG_ENDIAN=y
# Added to kconfig CONFIG_PPC64=y
# Added to kconfig CONFIG_PPC_DISABLE_WERROR=y
# Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y
# Added to kconfig 
# yes \n | make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: modpost: Found 4 section mismatch(es).
To see full details build your kernel with:
'make CONFIG_DEBUG_SECTION_MISMATCH=y'
/kisskb/src/scripts/link-vmlinux.sh: line 85:  8020 Segmentation fault      (core dumped) ${LD} ${KBUILD_LDFLAGS} ${LDFLAGS_vmlinux} -o ${2} -T ${lds} ${objects}
make[1]: *** [/kisskb/src/Makefile:1040: vmlinux] Error 139
make: *** [Makefile:146: sub-make] Error 2
Command 'make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc5
# Build took: 0:11:17.082083