# git rev-parse -q --verify 3ce47d95b7346dcafd9bed3556a8d072cb2b8571^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git fixes-test
warning: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify 3ce47d95b7346dcafd9bed3556a8d072cb2b8571^{commit}
3ce47d95b7346dcafd9bed3556a8d072cb2b8571
# git checkout -q -f -B kisskb 3ce47d95b7346dcafd9bed3556a8d072cb2b8571
# git clean -qxdf
# < git log -1
# commit 3ce47d95b7346dcafd9bed3556a8d072cb2b8571
# Author: Nathan Chancellor <natechancellor@gmail.com>
# Date:   Mon Jan 4 13:59:53 2021 -0700
# 
#     powerpc: Handle .text.{hot,unlikely}.* in linker script
#     
#     Commit eff8728fe698 ("vmlinux.lds.h: Add PGO and AutoFDO input
#     sections") added ".text.unlikely.*" and ".text.hot.*" due to an LLVM
#     change [1].
#     
#     After another LLVM change [2], these sections are seen in some PowerPC
#     builds, where there is a orphan section warning then build failure:
#     
#     $ make -skj"$(nproc)" \
#            ARCH=powerpc CROSS_COMPILE=powerpc64le-linux-gnu- LLVM=1 O=out \
#            distclean powernv_defconfig zImage.epapr
#     ld.lld: warning: kernel/built-in.a(panic.o):(.text.unlikely.) is being placed in '.text.unlikely.'
#     ...
#     ld.lld: warning: address (0xc000000000009314) of section .text is not a multiple of alignment (256)
#     ...
#     ERROR: start_text address is c000000000009400, should be c000000000008000
#     ERROR: try to enable LD_HEAD_STUB_CATCH config option
#     ERROR: see comments in arch/powerpc/tools/head_check.sh
#     ...
#     
#     Explicitly handle these sections like in the main linker script so
#     there is no more build failure.
#     
#     [1]: https://reviews.llvm.org/D79600
#     [2]: https://reviews.llvm.org/D92493
#     
#     Fixes: 83a092cf95f2 ("powerpc: Link warning for orphan sections")
#     Cc: stable@vger.kernel.org
#     Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://github.com/ClangBuiltLinux/linux/issues/1218
#     Link: https://lore.kernel.org/r/20210104205952.1399409-1-natechancellor@gmail.com
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 3ce47d95b7346dcafd9bed3556a8d072cb2b8571
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  defconfig
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  help
# make -s -j 48 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  olddefconfig
# make -s -j 48 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
arch/arm64/Makefile:25: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
arch/arm64/Makefile:33: LSE atomics not supported by binutils
/kisskb/src/arch/arm64/kernel/smp.c: In function 'arch_show_interrupts':
/kisskb/src/arch/arm64/kernel/smp.c:810:16: warning: unused variable 'irq' [-Wunused-variable]
   unsigned int irq = irq_desc_get_irq(ipi_desc[i]);
                ^
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4
# Build took: 0:06:05.471590