# 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_skiroot_defconfig_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  skiroot_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_skiroot_defconfig_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: vmlinux.o(.text+0x2ed0): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel()
The function start_here_common() references
the function __init start_kernel().
This is often because start_here_common lacks a __init 
annotation or the annotation of start_kernel is wrong.

In file included from /kisskb/src/arch/powerpc/boot/../../../lib/decompress_unxz.c:236:0,
                 from /kisskb/src/arch/powerpc/boot/decompress.c:42:
/kisskb/src/arch/powerpc/boot/../../../lib/xz/xz_dec_bcj.c: In function 'bcj_powerpc':
/kisskb/src/arch/powerpc/boot/../../../lib/xz/xz_dec_bcj.c:166:11: warning: implicit declaration of function 'get_unaligned_be32' [-Wimplicit-function-declaration]
   instr = get_unaligned_be32(buf + i);
           ^
/kisskb/src/arch/powerpc/boot/../../../lib/xz/xz_dec_bcj.c:172:4: warning: implicit declaration of function 'put_unaligned_be32' [-Wimplicit-function-declaration]
    put_unaligned_be32(instr, buf + i);
    ^
arch/powerpc/boot/wrapper.a(decompress.o): In function `bcj_apply':
decompress.c:(.text+0x770): undefined reference to `get_unaligned_be32'
decompress.c:(.text+0x7e8): undefined reference to `put_unaligned_be32'
make[2]: *** [/kisskb/src/arch/powerpc/boot/Makefile:383: arch/powerpc/boot/zImage.pseries] Error 1
make[2]: *** Waiting for unfinished jobs....
arch/powerpc/boot/wrapper.a(decompress.o): In function `bcj_apply':
decompress.c:(.text+0x770): undefined reference to `get_unaligned_be32'
decompress.c:(.text+0x7e8): undefined reference to `put_unaligned_be32'
make[2]: *** [/kisskb/src/arch/powerpc/boot/Makefile:383: arch/powerpc/boot/zImage.epapr] Error 1
make[1]: *** [arch/powerpc/Makefile:295: zImage] Error 2
make: *** [Makefile:179: sub-make] Error 2
Command 'make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_skiroot_defconfig_ppc64le-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_skiroot_defconfig_ppc64le-gcc5
# Build took: 0:01:28.750919