# git rev-parse -q --verify 92188b41f1394d5e4399fcb28c13a2933f255255^{commit}
92188b41f1394d5e4399fcb28c13a2933f255255
already have revision, skipping fetch
# git checkout -q -f -B kisskb 92188b41f1394d5e4399fcb28c13a2933f255255
# git clean -qxdf
# < git log -1
# commit 92188b41f1394d5e4399fcb28c13a2933f255255
# Merge: efb9666e900b 25d4e7f513d4
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Jul 19 12:35:07 2020 -0700
# 
#     Merge tag 'perf-tools-fixes-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into master
#     
#     Pull perf tooling fixes from Arnaldo Carvalho de Melo:
#     
#      - Update hashmap.h from libbpf and kvm.h from x86's kernel UAPI.
#     
#      - Set opt->set in libsubcmd's OPT_CALLBACK_SET(). This fixes
#        'perf record --switch-output-event event-name' usage"
#     
#     * tag 'perf-tools-fixes-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
#       tools arch kvm: Sync kvm headers with the kernel sources
#       perf tools: Sync hashmap.h with libbpf's
#       libsubcmd: Fix OPT_CALLBACK_SET()
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 92188b41f1394d5e4399fcb28c13a2933f255255
# < make -s -j 24 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 defconfig
# < make -s -j 24 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 help
# make -s -j 24 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 olddefconfig
# make -s -j 24 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 
/kisskb/src/arch/um/os-Linux/signal.c: In function 'sig_handler_common':
/kisskb/src/arch/um/os-Linux/signal.c:51:1: warning: the frame size of 2960 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
/kisskb/src/arch/um/os-Linux/signal.c: In function 'timer_real_alarm_handler':
/kisskb/src/arch/um/os-Linux/signal.c:95:1: warning: the frame size of 2960 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
  LINK linux
Completed OK
# rm -rf /kisskb/build/linus_um-defconfig_um-x86_64
# Build took: 0:00:52.008988