# git rev-parse -q --verify c93722674d73b5cf65c66426bc6b7e0051c64ef9^{commit}
c93722674d73b5cf65c66426bc6b7e0051c64ef9
already have revision, skipping fetch
# git checkout -q -f -B kisskb c93722674d73b5cf65c66426bc6b7e0051c64ef9
# git clean -qxdf
# < git log -1
# commit c93722674d73b5cf65c66426bc6b7e0051c64ef9
# Author: Joel Stanley <joel@jms.id.au>
# Date:   Tue Dec 11 08:58:54 2018 +1030
# 
#     powerpc: Discard .branch_lt section
#     
#     When building a 32 bit powerpc kernel with Binutils 2.31.1 this warning
#     is emitted:
#     
#      powerpc-linux-gnu-ld: warning: orphan section `.branch_lt' from
#      `arch/powerpc/kernel/head_44x.o' being placed in section `.branch_lt'
#     
#     As of binutils commit 2d7ad24e8726 ("Support PLT16 relocs against local
#     symbols")[1], 32 bit targets can produce .branch_lt sections in their
#     output.
#     
#     These sections should be empty for the kernel build so discard them for
#     both PPC64 and PPC32.
#     
#     [1] https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=2d7ad24e8726ba4c45c9e67be08223a146a837ce
#     Signed-off-by: Joel Stanley <joel@jms.id.au>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < git log --format=%s --max-count=1 c93722674d73b5cf65c66426bc6b7e0051c64ef9
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc6xx_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
In file included from /kisskb/src/arch/powerpc/kernel/ptrace.c:24:
In function 'user_regset_copyin',
    inlined from 'vr_set' at /kisskb/src/arch/powerpc/kernel/ptrace.c:619:9:
/kisskb/src/include/linux/regset.h:295:4: error: 'memcpy' offset [-527, -529] is out of the bounds [0, 16] of object 'vrsave' with type 'union <anonymous>' [-Werror=array-bounds]
    memcpy(data, *kbuf, copy);
    ^~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/arch/powerpc/kernel/ptrace.c: In function 'vr_set':
/kisskb/src/arch/powerpc/kernel/ptrace.c:614:5: note: 'vrsave' declared here
   } vrsave;
     ^~~~~~
In file included from /kisskb/src/arch/powerpc/kernel/ptrace.c:24:
In function 'user_regset_copyout',
    inlined from 'vr_get' at /kisskb/src/arch/powerpc/kernel/ptrace.c:572:9:
/kisskb/src/include/linux/regset.h:270:4: error: 'memcpy' offset [-527, -529] is out of the bounds [0, 16] of object 'vrsave' with type 'union <anonymous>' [-Werror=array-bounds]
    memcpy(*kbuf, data, copy);
    ^~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/arch/powerpc/kernel/ptrace.c: In function 'vr_get':
/kisskb/src/arch/powerpc/kernel/ptrace.c:567:5: note: 'vrsave' declared here
   } vrsave;
     ^~~~~~
cc1: all warnings being treated as errors
make[3]: *** [/kisskb/src/scripts/Makefile.build:293: arch/powerpc/kernel/ptrace.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/kisskb/src/scripts/Makefile.build:518: arch/powerpc/kernel] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1060: arch/powerpc] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:152: sub-make] Error 2
Command 'make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc-gcc8
# Build took: 0:02:23.015679