# git rev-parse -q --verify b0b9f351fd616a01eea7c8d44e798db5a122a005^{commit}
b0b9f351fd616a01eea7c8d44e798db5a122a005
already have revision, skipping fetch
# git checkout -q -f -B kisskb b0b9f351fd616a01eea7c8d44e798db5a122a005
# git clean -qxdf
# < git log -1
# commit b0b9f351fd616a01eea7c8d44e798db5a122a005
# Author: Masahiro Yamada <yamada.masahiro@socionext.com>
# Date:   Fri Jul 5 19:01:44 2019 +0900
# 
#     powerpc/boot: pass CONFIG options in a simpler and more robust way
#     
#     Commit 5e9dcb6188a4 ("powerpc/boot: Expose Kconfig symbols to wrapper")
#     was wrong, but commit e41b93a6be57 ("powerpc/boot: Fix build failures
#     with -j 1") was also wrong.
#     
#     The correct dependency is:
#     
#       $(obj)/serial.o: $(obj)/autoconf.h
#     
#     However, I do not see the reason why we need to copy autoconf.h to
#     arch/power/boot/. Nor do I see consistency in the way of passing
#     CONFIG options.
#     
#     decompress.c references CONFIG_KERNEL_GZIP and CONFIG_KERNEL_XZ, which
#     are passed via the command line.
#     
#     serial.c includes autoconf.h to reference a couple of CONFIG options,
#     but this is fragile because we often forget to include "autoconf.h"
#     from source files.
#     
#     In fact, it is already broken.
#     
#     ppc_asm.h references CONFIG_PPC_8xx, but utils.S is not given any way
#     to access CONFIG options. So, CONFIG_PPC_8xx is never defined here.
#     
#     Pass $(LINUXINCLUDE) to make sure CONFIG options are accessible from
#     all .c and .S files in arch/powerpc/boot/.
#     
#     I also removed the -traditional flag to make include/linux/kconfig.h
#     work. This flag makes the preprocessor imitate the behavior of the
#     pre-standard C compiler, but I do not understand why it is necessary.
#     
#     Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20190705100144.28785-2-yamada.masahiro@socionext.com
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 b0b9f351fd616a01eea7c8d44e798db5a122a005
# < make -s -j 10 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_defconfig+FA_DUMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pseries_defconfig
# Added to kconfig CONFIG_CRASH_DUMP=y
# Added to kconfig CONFIG_FA_DUMP=y
# yes \n | make -s -j 10 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_defconfig+FA_DUMP_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 10 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_defconfig+FA_DUMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/kernel/futex.c: In function 'do_futex':
/kisskb/src/kernel/futex.c:1658:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized]
   return oldval == cmparg;
                 ^
/kisskb/src/kernel/futex.c:1633:6: note: 'oldval' was declared here
  int oldval, ret;
      ^
Completed OK
# rm -rf /kisskb/build/powerpc-next_pseries_defconfig+FA_DUMP_powerpc-gcc5
# Build took: 0:05:19.130786