Buildresult: powerpc-next/s390-defconfig/s390x-gcc8 built on Nov 3 2020, 03:42

kisskb

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Status:	OK
Date/Time:	Nov 3 2020, 03:42
Duration:	0:02:47.560643
Builder:	ka4
Revision:	powerpc: Avoid broken GCC __attribute__((optimize)) (`2d83b0f30c1483a556c8aa1f7d891006fffcd5e0)`
Target:	powerpc-next/s390-defconfig/s390x-gcc8
Branch:	powerpc-next
Compiler:	s390x-gcc8 (s390-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30)
Config:	defconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify 2d83b0f30c1483a556c8aa1f7d891006fffcd5e0^{commit} 2d83b0f30c1483a556c8aa1f7d891006fffcd5e0 already have revision, skipping fetch # git checkout -q -f -B kisskb 2d83b0f30c1483a556c8aa1f7d891006fffcd5e0 # git clean -qxdf # < git log -1 # commit 2d83b0f30c1483a556c8aa1f7d891006fffcd5e0 # Author: Ard Biesheuvel <ardb@kernel.org> # Date: Wed Oct 28 09:04:33 2020 +0100 # # powerpc: Avoid broken GCC __attribute__((optimize)) # # Commit 7053f80d9696 ("powerpc/64: Prevent stack protection in early # boot") introduced a couple of uses of __attribute__((optimize)) with # function scope, to disable the stack protector in some early boot # code. # # Unfortunately, and this is documented in the GCC man pages [0], # overriding function attributes for optimization is broken, and is only # supported for debug scenarios, not for production: the problem appears # to be that setting GCC -f flags using this method will cause it to # forget about some or all other optimization settings that have been # applied. # # So the only safe way to disable the stack protector is to disable it # for the entire source file. # # [0] https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html # # Fixes: 7053f80d9696 ("powerpc/64: Prevent stack protection in early boot") # Signed-off-by: Ard Biesheuvel <ardb@kernel.org> # [mpe: Drop one remaining use of __nostackprotector, reported by snowpatch] # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/20201028080433.26799-1-ardb@kernel.org # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-ld --version # < git log --format=%s --max-count=1 2d83b0f30c1483a556c8aa1f7d891006fffcd5e0 # < make -s -j 120 ARCH=s390 O=/kisskb/build/powerpc-next_s390-defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux- defconfig # make -s -j 120 ARCH=s390 O=/kisskb/build/powerpc-next_s390-defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux- Completed OK # rm -rf /kisskb/build/powerpc-next_s390-defconfig_s390x-gcc8 # Build took: 0:02:47.560643

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