Buildresult: powerpc-next/mmu_defconfig/microblaze-gcc5 built on Feb 22 2021, 01:31

kisskb

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Status:	OK
Date/Time:	Feb 22 2021, 01:31
Duration:	0:01:09.428790
Builder:	blade4b
Revision:	powerpc/4xx: Fix build errors from mfdcr() (`b12483618d73c954c00faa49c276b4d9995fb95a)`
Target:	powerpc-next/mmu_defconfig/microblaze-gcc5
Branch:	powerpc-next
Compiler:	microblaze-gcc5 (microblazeel-linux-gcc.br_real (Buildroot 2016.11-git-00613-ge98b4dd) 5.4.0 / GNU ld (GNU Binutils) 2.26.1)
Config:	mmu_defconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify b12483618d73c954c00faa49c276b4d9995fb95a^{commit} b12483618d73c954c00faa49c276b4d9995fb95a already have revision, skipping fetch # git checkout -q -f -B kisskb b12483618d73c954c00faa49c276b4d9995fb95a # git clean -qxdf # < git log -1 # commit b12483618d73c954c00faa49c276b4d9995fb95a # Author: Michael Ellerman <mpe@ellerman.id.au> # Date: Thu Feb 18 23:30:58 2021 +1100 # # powerpc/4xx: Fix build errors from mfdcr() # # lkp reported a build error in fsp2.o: # # CC arch/powerpc/platforms/44x/fsp2.o # {standard input}:577: Error: unsupported relocation against base # # Which comes from: # # pr_err("GESR0: 0x%08x\n", mfdcr(base + PLB4OPB_GESR0)); # # Where our mfdcr() macro is stringifying "base + PLB4OPB_GESR0", and # passing that to the assembler, which obviously doesn't work. # # The mfdcr() macro already checks that the argument is constant using # __builtin_constant_p(), and if not calls the out-of-line version of # mfdcr(). But in this case GCC is smart enough to notice that "base + # PLB4OPB_GESR0" will be constant, even though it's not something we can # immediately stringify into a register number. # # Segher pointed out that passing the register number to the inline asm # as a constant would be better, and in fact it fixes the build error, # presumably because it gives GCC a chance to resolve the value. # # While we're at it, change mtdcr() similarly. # # Reported-by: kernel test robot <lkp@intel.com> # Suggested-by: Segher Boessenkool <segher@kernel.crashing.org> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Acked-by: Feng Tang <feng.tang@intel.com> # Link: https://lore.kernel.org/r/20210218123058.748882-1-mpe@ellerman.id.au # < /opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-gcc --version # < /opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-ld --version # < git log --format=%s --max-count=1 b12483618d73c954c00faa49c276b4d9995fb95a # < make -s -j 24 ARCH=microblaze O=/kisskb/build/powerpc-next_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux- mmu_defconfig # < make -s -j 24 ARCH=microblaze O=/kisskb/build/powerpc-next_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux- help # make -s -j 24 ARCH=microblaze O=/kisskb/build/powerpc-next_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux- olddefconfig # make -s -j 24 ARCH=microblaze O=/kisskb/build/powerpc-next_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux- Kernel: arch/microblaze/boot/linux.bin is ready (#1) Completed OK # rm -rf /kisskb/build/powerpc-next_mmu_defconfig_microblaze # Build took: 0:01:09.428790

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