# git rev-parse -q --verify 3b9efa81f2b3245e14559079cef172d5f83c5d42^{commit}
3b9efa81f2b3245e14559079cef172d5f83c5d42
already have revision, skipping fetch
# git checkout -q -f -B kisskb 3b9efa81f2b3245e14559079cef172d5f83c5d42
# git clean -qxdf
# < git log -1
# commit 3b9efa81f2b3245e14559079cef172d5f83c5d42
# Author: Masahiro Yamada <yamada.masahiro@socionext.com>
# Date:   Mon May 13 23:16:04 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/.
#     
#     Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
#     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
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 3b9efa81f2b3245e14559079cef172d5f83c5d42
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_40x_klondike_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  40x/klondike_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_40x_klondike_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/arch/powerpc/kernel/head_40x.S: Assembler messages:
/kisskb/src/arch/powerpc/kernel/head_40x.S:808: Warning: invalid register expression
Completed OK
# rm -rf /kisskb/build/powerpc-next_40x_klondike_defconfig_powerpc-gcc5
# Build took: 0:00:24.497673