Buildresult: powerpc-next/83xx/mpc836x_mds_defconfig/powerpc-gcc5 built on Nov 3 2020, 02:55

kisskb

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Status:	OK
Date/Time:	Nov 3 2020, 02:55
Duration:	0:00:27.564537
Builder:	ka4
Revision:	powerpc: Avoid broken GCC __attribute__((optimize)) (`2d83b0f30c1483a556c8aa1f7d891006fffcd5e0)`
Target:	powerpc-next/83xx/mpc836x_mds_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:	83xx/mpc836x_mds_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-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 2d83b0f30c1483a556c8aa1f7d891006fffcd5e0 # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_83xx_mpc836x_mds_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- 83xx/mpc836x_mds_defconfig # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_83xx_mpc836x_mds_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- INFO: Uncompressed kernel (size 0x656980) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x646298) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) Image Name: Linux-5.10.0-rc2-g2d83b0f30c14 Created: Tue Nov 3 02:56:04 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2836779 Bytes = 2770.29 KiB = 2.71 MiB Load Address: 00700000 Entry Point: 00700294 Image Name: Linux-5.10.0-rc2-g2d83b0f30c14 Created: Tue Nov 3 02:56:04 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2806573 Bytes = 2740.79 KiB = 2.68 MiB Load Address: 00000000 Entry Point: 00000000 Completed OK # rm -rf /kisskb/build/powerpc-next_83xx_mpc836x_mds_defconfig_powerpc-gcc5 # Build took: 0:00:27.564537

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