# git rev-parse -q --verify 0513e464f9007b70b96740271a948ca5ab6e7dd7^{commit}
0513e464f9007b70b96740271a948ca5ab6e7dd7
already have revision, skipping fetch
# git checkout -q -f -B kisskb 0513e464f9007b70b96740271a948ca5ab6e7dd7
# git clean -qxdf
# < git log -1
# commit 0513e464f9007b70b96740271a948ca5ab6e7dd7
# Merge: 9cccec2bf32f 4da8b121884d
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Sep 27 14:06:42 2021 -0700
# 
#     Merge tag 'perf-tools-fixes-for-v5.15-2021-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
#     
#     Pull more perf tools fixes from Arnaldo Carvalho de Melo:
#     
#      - Fix 'perf test' DWARF unwind for optimized builds.
#     
#      - Fix 'perf test' 'Object code reading' when dealing with samples in
#        @plt symbols.
#     
#      - Fix off-by-one directory paths in the ARM support code.
#     
#      - Fix error message to eliminate confusion in 'perf config' when first
#        creating a config file.
#     
#      - 'perf iostat' fix for system wide operation.
#     
#      - Fix printing of metrics when 'perf iostat' is used with one or more
#        iio_root_ports and unconnected cpus (using -C).
#     
#      - Fix several typos in the documentation files.
#     
#      - Fix spelling mistake "icach" -> "icache" in the power8 JSON vendor
#        files.
#     
#     * tag 'perf-tools-fixes-for-v5.15-2021-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
#       perf iostat: Fix Segmentation fault from NULL 'struct perf_counts_values *'
#       perf iostat: Use system-wide mode if the target cpu_list is unspecified
#       perf config: Refine error message to eliminate confusion
#       perf doc: Fix typos all over the place
#       perf arm: Fix off-by-one directory paths.
#       perf vendor events powerpc: Fix spelling mistake "icach" -> "icache"
#       perf tests: Fix flaky test 'Object code reading'
#       perf test: Fix DWARF unwind for optimized builds.
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/riscv64-linux/bin/riscv64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/riscv64-linux/bin/riscv64-linux-ld --version
# < git log --format=%s --max-count=1 0513e464f9007b70b96740271a948ca5ab6e7dd7
# < make -s -j 32 ARCH=riscv O=/kisskb/build/linus_rv32_defconfig_riscv-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/riscv64-linux/bin/riscv64-linux-  rv32_defconfig
# < make -s -j 32 ARCH=riscv O=/kisskb/build/linus_rv32_defconfig_riscv-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/riscv64-linux/bin/riscv64-linux-  help
# make -s -j 32 ARCH=riscv O=/kisskb/build/linus_rv32_defconfig_riscv-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/riscv64-linux/bin/riscv64-linux-  olddefconfig
# make -s -j 32 ARCH=riscv O=/kisskb/build/linus_rv32_defconfig_riscv-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/riscv64-linux/bin/riscv64-linux-  
<stdin>:834:2: warning: #warning syscall fstat64 not implemented [-Wcpp]
<stdin>:1131:2: warning: #warning syscall fstatat64 not implemented [-Wcpp]
<stdin>:1515:2: warning: #warning syscall clone3 not implemented [-Wcpp]
Completed OK
# rm -rf /kisskb/build/linus_rv32_defconfig_riscv-gcc11
# Build took: 0:01:00.781791