# git rev-parse -q --verify 9324130f65f68433372472702ee12969340ce1c3^{commit}
9324130f65f68433372472702ee12969340ce1c3
already have revision, skipping fetch
# git checkout -q -f -B kisskb 9324130f65f68433372472702ee12969340ce1c3
# git clean -qxdf
# < git log -1
# commit 9324130f65f68433372472702ee12969340ce1c3
# Author: Feng Tang <feng.tang@intel.com>
# Date:   Thu May 6 15:34:59 2021 +0800
# 
#     Makefile: extend 32B aligned debug option to 64B aligned
#     
#     Commit 09c60546f04f ("./Makefile: add debug option to enable
#     function aligned on 32 bytes") was introduced to help debugging
#     strange kernel performance changes caused by code alignment
#     change.
#     
#     Recently we found 2 similar cases [1][2] caused by code-alignment
#     changes, which can only be identified by forcing 64 bytes aligned
#     for all functions.
#     
#     Originally, 32 bytes was used mainly for not wasting too much
#     text space, but this option is only for debug anyway where text
#     space is not a big concern. So extend the alignment to 64 bytes
#     to cover more similar cases.
#     
#     [1].https://lore.kernel.org/lkml/20210427090013.GG32408@xsang-OptiPlex-9020/
#     [2].https://lore.kernel.org/lkml/20210420030837.GB31773@xsang-OptiPlex-9020/
#     Signed-off-by: Feng Tang <feng.tang@intel.com>
#     Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 9324130f65f68433372472702ee12969340ce1c3
# < make -s -j 24 ARCH=sparc64 O=/kisskb/build/kbuild_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  defconfig
# < make -s -j 24 ARCH=sparc64 O=/kisskb/build/kbuild_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  help
# make -s -j 24 ARCH=sparc64 O=/kisskb/build/kbuild_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  olddefconfig
# make -s -j 24 ARCH=sparc64 O=/kisskb/build/kbuild_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
WARNING: modpost: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned.
  kernel: arch/sparc/boot/image is ready
  kernel: arch/sparc/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/kbuild_sparc64-defconfig_sparc64
# Build took: 0:01:47.561536