Buildresult: powerpc-next/mpc5200_defconfig/powerpc-gcc5 built on Nov 26 2019, 00:36
kisskb
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Status:
OK
Date/Time:
Nov 26 2019, 00:36
Duration:
0:01:23.364555
Builder:
blade4b
Revision:
powerpc/prom_init: Use -ffreestanding to avoid a reference to bcmp (
8dcd71b45df34d9b903450fab147ee8c1e6c16b5)
Target:
powerpc-next/mpc5200_defconfig/powerpc-gcc5
Branch:
powerpc-next
Compiler:
powerpc-gcc5
(powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:
mpc5200_defconfig
(
download
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Log:
Download original
Possible warnings (1)
arch/powerpc/platforms/52xx/lite5200_sleep.S:184: Warning: invalid register expression
Full Log
# git rev-parse -q --verify 8dcd71b45df34d9b903450fab147ee8c1e6c16b5^{commit} 8dcd71b45df34d9b903450fab147ee8c1e6c16b5 already have revision, skipping fetch # git checkout -q -f -B kisskb 8dcd71b45df34d9b903450fab147ee8c1e6c16b5 # git clean -qxdf # < git log -1 # commit 8dcd71b45df34d9b903450fab147ee8c1e6c16b5 # Author: Nathan Chancellor <natechancellor@gmail.com> # Date: Mon Nov 18 21:57:12 2019 -0700 # # powerpc/prom_init: Use -ffreestanding to avoid a reference to bcmp # # LLVM revision r374662 gives LLVM the ability to convert certain loops # into a reference to bcmp as an optimization; this breaks # prom_init_check.sh: # # CALL arch/powerpc/kernel/prom_init_check.sh # Error: External symbol 'bcmp' referenced from prom_init.c # make[2]: *** [arch/powerpc/kernel/Makefile:196: prom_init_check] Error 1 # # bcmp is defined in lib/string.c as a wrapper for memcmp so this could # be added to the whitelist. However, commit # 450e7dd4001f ("powerpc/prom_init: don't use string functions from # lib/") copied memcmp as prom_memcmp to avoid KASAN instrumentation so # having bcmp be resolved to regular memcmp would break that assumption. # Furthermore, because the compiler is the one that inserted bcmp, we # cannot provide something like prom_bcmp. # # To prevent LLVM from being clever with optimizations like this, use # -ffreestanding to tell LLVM we are not hosted so it is not free to # make transformations like this. # # Reviewed-by: Nick Desaulneris <ndesaulniers@google.com> # Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/20191119045712.39633-4-natechancellor@gmail.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 8dcd71b45df34d9b903450fab147ee8c1e6c16b5 # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc5200_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc5200_defconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc5200_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/platforms/52xx/lite5200_sleep.S: Assembler messages: /kisskb/src/arch/powerpc/platforms/52xx/lite5200_sleep.S:184: Warning: invalid register expression INFO: Uncompressed kernel (size 0x6f99a8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x6f99a8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x6f99a8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x6e92c4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) Image Name: Linux-5.4.0-rc2-g8dcd71b45df3 Created: Tue Nov 26 00:37:32 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3521681 Bytes = 3439.14 KiB = 3.36 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.4.0-rc2-g8dcd71b45df3 Created: Tue Nov 26 00:37:32 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3551302 Bytes = 3468.07 KiB = 3.39 MiB Load Address: 00700000 Entry Point: 00700284 Image Name: Linux-5.4.0-rc2-g8dcd71b45df3 Created: Tue Nov 26 00:37:32 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3550738 Bytes = 3467.52 KiB = 3.39 MiB Load Address: 00700000 Entry Point: 00700284 Image Name: Linux-5.4.0-rc2-g8dcd71b45df3 Created: Tue Nov 26 00:37:32 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3551355 Bytes = 3468.12 KiB = 3.39 MiB Load Address: 00700000 Entry Point: 00700284 Completed OK # rm -rf /kisskb/build/powerpc-next_mpc5200_defconfig_powerpc-gcc5 # Build took: 0:01:23.364555
© Michael Ellerman 2006-2018.