# git rev-parse -q --verify 2a987e65025e2b79c6d453b78cb5985ac6e5eb26^{commit}
2a987e65025e2b79c6d453b78cb5985ac6e5eb26
already have revision, skipping fetch
# git checkout -q -f -B kisskb 2a987e65025e2b79c6d453b78cb5985ac6e5eb26
# git clean -qxdf
# < git log -1
# commit 2a987e65025e2b79c6d453b78cb5985ac6e5eb26
# Merge: 957232439c2a 5a897531e002
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Dec 7 15:36:45 2021 -0800
# 
#     Merge tag 'perf-tools-fixes-for-v5.16-2021-12-07' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
#     
#     Pull perf tools fixes from Arnaldo Carvalho de Melo:
#     
#      - Fix SMT detection fast read path on sysfs.
#     
#      - Fix memory leaks when processing feature headers in perf.data files.
#     
#      - Fix 'Simple expression parser' 'perf test' on arch without CPU die
#        topology info, such as s/390.
#     
#      - Fix building perf with BUILD_BPF_SKEL=1.
#     
#      - Fix 'perf bench' by reverting "perf bench: Fix two memory leaks
#        detected with ASan".
#     
#      - Fix itrace space allowed for new attributes in 'perf script'.
#     
#      - Fix the build feature detection fast path, that was always failing on
#        systems with python3 development packages, speeding up the build.
#     
#      - Reset shadow counts before loading, fixing metrics using
#        duration_time.
#     
#      - Sync more kernel headers changed by the new futex_waitv syscall: s390
#        and powerpc.
#     
#     * tag 'perf-tools-fixes-for-v5.16-2021-12-07' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
#       perf bpf_skel: Do not use typedef to avoid error on old clang
#       perf bpf: Fix building perf with BUILD_BPF_SKEL=1 by default in more distros
#       perf header: Fix memory leaks when processing feature headers
#       perf test: Reset shadow counts before loading
#       perf test: Fix 'Simple expression parser' test on arch without CPU die topology info
#       tools build: Remove needless libpython-version feature check that breaks test-all fast path
#       perf tools: Fix SMT detection fast read path
#       tools headers UAPI: Sync powerpc syscall table file changed by new futex_waitv syscall
#       perf inject: Fix itrace space allowed for new attributes
#       tools headers UAPI: Sync s390 syscall table file changed by new futex_waitv syscall
#       Revert "perf bench: Fix two memory leaks detected with ASan"
# < /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 2a987e65025e2b79c6d453b78cb5985ac6e5eb26
# < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allnoconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  allnoconfig
# < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allnoconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  help
# make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allnoconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  olddefconfig
# make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_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/linus_arm64-allnoconfig_arm64-gcc8
# Build took: 0:00:20.912073