# git rev-parse -q --verify 1678e493d530e7977cce34e59a86bb86f3c5631e^{commit}
1678e493d530e7977cce34e59a86bb86f3c5631e
already have revision, skipping fetch
# git checkout -q -f -B kisskb 1678e493d530e7977cce34e59a86bb86f3c5631e
# git clean -qxdf
# < git log -1
# commit 1678e493d530e7977cce34e59a86bb86f3c5631e
# Merge: 6905b1dc3c32 6a3193cdd5e5
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Apr 1 17:57:43 2021 -0700
# 
#     Merge tag 'lto-v5.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
#     
#     Pull LTO fix from Kees Cook:
#      "It seems that there is a bug in ld.bfd when doing module section
#       merging.
#     
#       As explicit merging is only needed for LTO, the work-around is to only
#       do it under LTO, leaving the original section layout choices alone
#       under normal builds:
#     
#        - Only perform explicit module section merges under LTO (Sean
#          Christopherson)"
#     
#     * tag 'lto-v5.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
#       kbuild: lto: Merge module sections if and only if CONFIG_LTO_CLANG is enabled
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 1678e493d530e7977cce34e59a86bb86f3c5631e
# < make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+SMP_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  pmac32_defconfig
# Added to kconfig CONFIG_SMP=y
# < make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+SMP_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+SMP_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
.config:4147:warning: override: reassigning to symbol SMP
# make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+SMP_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/block/genhd.c: In function 'diskstats_show':
/kisskb/src/block/genhd.c:1311:1: warning: the frame size of 1168 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
INFO: Uncompressed kernel (size 0xad7b74) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0xb00000)
Completed OK
# rm -rf /kisskb/build/linus_pmac32_defconfig+SMP_powerpc-gcc4.9
# Build took: 0:02:17.838298