# git rev-parse -q --verify e4b79900222b8cccd4da4a7a89581f0e1b764ed2^{commit}
e4b79900222b8cccd4da4a7a89581f0e1b764ed2
already have revision, skipping fetch
# git checkout -q -f -B kisskb e4b79900222b8cccd4da4a7a89581f0e1b764ed2
# git clean -qxdf
# < git log -1
# commit e4b79900222b8cccd4da4a7a89581f0e1b764ed2
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Tue Mar 13 15:58:11 2018 +1100
# 
#     powerpc/64s: Fix NULL AT_BASE_PLATFORM when using DT CPU features
#     
#     When running virtualised the powerpc kernel is able to run the system
#     in "compat mode" - which means the kernel and hardware are pretending
#     to userspace that the CPU is an older version than it actually is.
#     
#     AT_BASE_PLATFORM is an AUXV entry that we export to userspace for use
#     when we're running in that mode, which tells userspace the "platform"
#     string for the real CPU version, as opposed to the faked version.
#     
#     Although we don't support compat mode when using DT CPU features, and
#     arguably don't need to set AT_BASE_PLATFORM, the existing cputable
#     based code always sets it even when we're running bare metal. That
#     means the lack of AT_BASE_PLATFORM is a user-visible artifact of the
#     fact that the kernel is using DT CPU features, which we don't want.
#     
#     So set it in the DT CPU features code also.
#     
#     This results in eg:
#       $ LD_SHOW_AUXV=1 /bin/true | grep "AT_.*PLATFORM"
#       AT_PLATFORM:     power9
#       AT_BASE_PLATFORM:power9
#     
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
# < /opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < git log --format=%s --max-count=1 e4b79900222b8cccd4da4a7a89581f0e1b764ed2
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_ALTIVEC_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc64_defconfig
# Added to kconfig CONFIG_ALTIVEC=n
# Added to kconfig CONFIG_PPC_TRANSACTIONAL_MEM=n
# yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_ALTIVEC_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_ALTIVEC_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/arch/powerpc/kvm/powerpc.c: In function 'kvm_arch_vcpu_ioctl_run':
/kisskb/src/arch/powerpc/kvm/powerpc.c:1611:1: error: label 'out' defined but not used [-Werror=unused-label]
 out:
 ^
cc1: all warnings being treated as errors
/kisskb/src/scripts/Makefile.build:316: recipe for target 'arch/powerpc/kvm/powerpc.o' failed
make[2]: *** [arch/powerpc/kvm/powerpc.o] Error 1
make[2]: *** Waiting for unfinished jobs....
/kisskb/src/Makefile:1048: recipe for target 'arch/powerpc/kvm' failed
make[1]: *** [arch/powerpc/kvm] Error 2
make[1]: *** Waiting for unfinished jobs....
Makefile:146: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_ALTIVEC_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-fixes_ppc64_defconfig+NO_ALTIVEC_powerpc-5.3
# Build took: 0:02:19.453223