# git rev-parse -q --verify fb3fdea450305d932d933d7e75eead0477249d8e^{commit}
fb3fdea450305d932d933d7e75eead0477249d8e
already have revision, skipping fetch
# git checkout -q -f -B kisskb fb3fdea450305d932d933d7e75eead0477249d8e
# git clean -qxdf
# < git log -1
# commit fb3fdea450305d932d933d7e75eead0477249d8e
# Author: Masahiro Yamada <masahiroy@kernel.org>
# Date:   Thu Aug 19 09:01:14 2021 +0900
# 
#     kbuild: Fix 'no symbols' warning when CONFIG_TRIM_UNUSD_KSYMS=y
#     
#     When CONFIG_TRIM_UNUSED_KSYMS is enabled, I see some warnings like this:
#     
#       nm: arch/x86/entry/vdso/vdso32/note.o: no symbols
#     
#     $NM (both GNU nm and llvm-nm) warns when no symbol is found in the
#     object. Suppress the stderr.
#     
#     Fangrui Song mentioned binutils>=2.37 `nm -q` can be used to suppress
#     "no symbols" [1], and llvm-nm>=13.0.0 supports -q as well.
#     
#     We cannot use it for now, but note it as a TODO.
#     
#     [1]: https://sourceware.org/bugzilla/show_bug.cgi?id=27408
#     
#     Fixes: bbda5ec671d3 ("kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS")
#     Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
#     Reviewed-by: Nathan Chancellor <nathan@kernel.org>
#     Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 fb3fdea450305d932d933d7e75eead0477249d8e
# < make -s -j 32 ARCH=x86 O=/kisskb/build/kbuild_x86_64_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  x86_64_defconfig
# < make -s -j 32 ARCH=x86 O=/kisskb/build/kbuild_x86_64_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 32 ARCH=x86 O=/kisskb/build/kbuild_x86_64_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
# make -s -j 32 ARCH=x86 O=/kisskb/build/kbuild_x86_64_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  
/kisskb/src/arch/x86/entry/vdso/Makefile:135: FORCE prerequisite is missing
/kisskb/src/arch/x86/entry/vdso/Makefile:135: FORCE prerequisite is missing
/kisskb/src/drivers/scsi/Makefile:196: FORCE prerequisite is missing
Completed OK
# rm -rf /kisskb/build/kbuild_x86_64_defconfig_x86_64-gcc8
# Build took: 0:02:49.667776