Buildresult: npiggin/arm64-allnoconfig/arm64-gcc8 built on Feb 27 2020, 10:32

kisskb

Revisions | Branches | Compilers | Configs | Build Results | Build Failures |

Status:	OK
Date/Time:	Feb 27 2020, 10:32
Duration:	0:00:45.820984
Builder:	ka1
Revision:	powerpc/64s: system call support for scv/rfscv instructions (`5f60bb2254dec0233f5190a51b35bb5a2688de94)`
Target:	npiggin/arm64-allnoconfig/arm64-gcc8
Branch:	npiggin
Compiler:	arm64-gcc8 (aarch64-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30)
Config:	allnoconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify 5f60bb2254dec0233f5190a51b35bb5a2688de94^{commit} # git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-npiggin.git kerkins # git rev-parse -q --verify 5f60bb2254dec0233f5190a51b35bb5a2688de94^{commit} 5f60bb2254dec0233f5190a51b35bb5a2688de94 # git checkout -q -f -B kisskb 5f60bb2254dec0233f5190a51b35bb5a2688de94 # git clean -qxdf # < git log -1 # commit 5f60bb2254dec0233f5190a51b35bb5a2688de94 # Author: Nicholas Piggin <npiggin@gmail.com> # Date: Fri Sep 13 22:07:01 2019 +1000 # # powerpc/64s: system call support for scv/rfscv instructions # # Add support for the scv instruction on POWER9 and later CPUs. # # For now this implements the zeroth scv vector 'scv 0', as identical # to 'sc' system calls, with the exception that lr is not preserved, and # it is 64-bit only. There may yet be changes made to this ABI, so it's # for testing only. # # rfscv is implemented to return from scv type system calls. It can not # be used to return from sc system calls because those are defined to # preserve lr. # # In a comparison of getpid syscall, the test program had scv taking # about 3 more cycles in user mode (92 vs 89 for sc), due to lr handling. # getpid syscall throughput on POWER9 is improved by 33%, mostly due to # reducing mtmsr and mtspr. # # Signed-off-by: Nicholas Piggin <npiggin@gmail.com> # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version # < git log --format=%s --max-count=1 5f60bb2254dec0233f5190a51b35bb5a2688de94 # < make -s -j 8 ARCH=arm64 O=/kisskb/build/npiggin_arm64-allnoconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- allnoconfig # < make -s -j 8 ARCH=arm64 O=/kisskb/build/npiggin_arm64-allnoconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- help # make -s -j 8 ARCH=arm64 O=/kisskb/build/npiggin_arm64-allnoconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- olddefconfig # make -s -j 8 ARCH=arm64 O=/kisskb/build/npiggin_arm64-allnoconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- Completed OK # rm -rf /kisskb/build/npiggin_arm64-allnoconfig_arm64-gcc8 # Build took: 0:00:45.820984

© Michael Ellerman 2006-2018.