Buildresult: powerpc-fixes/versatile_defconfig/arm-gcc4.6 built on Mar 13 2018, 23:54

kisskb

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Status:	OK
Date/Time:	Mar 13 2018, 23:54
Duration:	0:00:35.920852
Builder:	ka3
Revision:	powerpc/64s: Fix NULL AT_BASE_PLATFORM when using DT CPU features (`66763e9d1f6a8eda00da3a32c007b2af61412c10)`
Target:	powerpc-fixes/versatile_defconfig/arm-gcc4.6
Branch:	powerpc-fixes
Compiler:	arm-gcc4.6 (arm-unknown-linux-gnueabi-gcc (GCC) 4.6.3)
Config:	versatile_defconfig (download)
Log:	Download original Possible warnings (1) kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify 66763e9d1f6a8eda00da3a32c007b2af61412c10^{commit} 66763e9d1f6a8eda00da3a32c007b2af61412c10 already have revision, skipping fetch # git checkout -q -f -B kisskb 66763e9d1f6a8eda00da3a32c007b2af61412c10 # git clean -qxdf # git log -1 commit 66763e9d1f6a8eda00da3a32c007b2af61412c10 Author: Michael Ellerman <mpe@ellerman.id.au> Date: Tue Mar 13 15:58:11 2018 +1100 powerpc/64s: Fix NULL AT_BASE_PLATFORM when using DT CPU features When running virtualised the powerpc kernel is able to run the system in "compat mode" - which means the kernel and hardware are pretending to userspace that the CPU is an older version than it actually is. AT_BASE_PLATFORM is an AUXV entry that we export to userspace for use when we're running in that mode, which tells userspace the "platform" string for the real CPU version, as opposed to the faked version. Although we don't support compat mode when using DT CPU features, and arguably don't need to set AT_BASE_PLATFORM, the existing cputable based code always sets it even when we're running bare metal. That means the lack of AT_BASE_PLATFORM is a user-visible artifact of the fact that the kernel is using DT CPU features, which we don't want. So set it in the DT CPU features code also. This results in eg: $ LD_SHOW_AUXV=1 /bin/true \| grep "AT_.*PLATFORM" AT_PLATFORM: power9 AT_BASE_PLATFORM:power9 Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version # < git log --format=%s --max-count=1 66763e9d1f6a8eda00da3a32c007b2af61412c10 # < make -s -j 80 ARCH=arm O=/kisskb/build/powerpc-fixes_versatile_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- versatile_defconfig # make -s -j 80 ARCH=arm O=/kisskb/build/powerpc-fixes_versatile_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] Completed OK # rm -rf /kisskb/build/powerpc-fixes_versatile_defconfig_arm # Build took: 0:00:35.920852

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