# git rev-parse -q --verify c48b07226bd41f4053aa2024c5e347183c04deb5^{commit}
c48b07226bd41f4053aa2024c5e347183c04deb5
already have revision, skipping fetch
# git checkout -q -f -B kisskb c48b07226bd41f4053aa2024c5e347183c04deb5
# git clean -qxdf
# < git log -1
# commit c48b07226bd41f4053aa2024c5e347183c04deb5
# Merge: d5ca32738f8f 7dc41b9b99cd
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Apr 5 12:26:24 2020 -0700
# 
#     Merge tag 'perf-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull more perf updates from Thomas Gleixner:
#      "Perf updates all over the place:
#     
#       core:
#     
#        - Support for cgroup tracking in samples to allow cgroup based
#          analysis
#     
#       tools:
#     
#        - Support for cgroup analysis
#     
#        - Commandline option and hotkey for perf top to change the sort order
#     
#        - A set of fixes all over the place
#     
#        - Various build system related improvements
#     
#        - Updates of the X86 pmu event JSON data
#     
#        - Documentation updates"
#     
#     * tag 'perf-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (55 commits)
#       perf python: Fix clang detection to strip out options passed in $CC
#       perf tools: Support Python 3.8+ in Makefile
#       perf script: Fix invalid read of directory entry after closedir()
#       perf script report: Fix SEGFAULT when using DWARF mode
#       perf script: add -S/--symbols documentation
#       perf pmu-events x86: Use CPU_CLK_UNHALTED.THREAD in Kernel_Utilization metric
#       perf events parser: Add missing Intel CPU events to parser
#       perf script: Allow --symbol to accept hexadecimal addresses
#       perf report/top TUI: Fix title line formatting
#       perf top: Support hotkey to change sort order
#       perf top: Support --group-sort-idx to change the sort order
#       perf symbols: Fix arm64 gap between kernel start and module end
#       perf build-test: Honour JOBS to override detection of number of cores
#       perf script: Add --show-cgroup-events option
#       perf top: Add --all-cgroups option
#       perf record: Add --all-cgroups option
#       perf record: Support synthesizing cgroup events
#       perf report: Add 'cgroup' sort key
#       perf cgroup: Maintain cgroup hierarchy
#       perf tools: Basic support for CGROUP event
#       ...
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-ld --version
# < git log --format=%s --max-count=1 c48b07226bd41f4053aa2024c5e347183c04deb5
# < make -s -j 32 ARCH=arm O=/kisskb/build/linus_colibri_pxa270_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  colibri_pxa270_defconfig
# < make -s -j 32 ARCH=arm O=/kisskb/build/linus_colibri_pxa270_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  help
# make -s -j 32 ARCH=arm O=/kisskb/build/linus_colibri_pxa270_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  olddefconfig
# make -s -j 32 ARCH=arm O=/kisskb/build/linus_colibri_pxa270_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  
/kisskb/src/kernel/futex.c: In function 'do_futex':
/kisskb/src/kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized]
   return oldval == cmparg;
                 ^
/kisskb/src/kernel/futex.c:1652:6: note: 'oldval' was declared here
  int oldval, ret;
      ^
Completed OK
# rm -rf /kisskb/build/linus_colibri_pxa270_defconfig_arm-gcc4.9
# Build took: 0:01:28.374587