# git rev-parse -q --verify 3281366a8e79a512956382885091565db1036b64^{commit}
3281366a8e79a512956382885091565db1036b64
already have revision, skipping fetch
# git checkout -q -f -B kisskb 3281366a8e79a512956382885091565db1036b64
# git clean -qxdf
# < git log -1
# commit 3281366a8e79a512956382885091565db1036b64
# Author: Peter Bergner <bergner@linux.ibm.com>
# Date:   Wed Feb 14 16:34:06 2024 -0600
# 
#     uapi/auxvec: Define AT_HWCAP3 and AT_HWCAP4 aux vector, entries
#     
#     The powerpc toolchain keeps a copy of the HWCAP bit masks in the TCB
#     for fast access by the __builtin_cpu_supports() built-in function. The
#     TCB space for the HWCAP entries - which are created in pairs - is an ABI
#     extension, so waiting to create the space for HWCAP3 and HWCAP4 until
#     they are needed is problematic. Define AT_HWCAP3 and AT_HWCAP4 in the
#     generic uapi header so they can be used in glibc to reserve space in the
#     powerpc TCB for their future use.
#     
#     I scanned through the Linux and GLIBC source codes looking for unused
#     AT_* values and 29 and 30 did not seem to be used, so they are what I
#     went with.
#     
#     Signed-off-by: Peter Bergner <bergner@linux.ibm.com>
#     Acked-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
#     Acked-by: Nicholas Piggin <npiggin@gmail.com>
#     Acked-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
#     Acked-by: Arnd Bergmann <arnd@arndb.de>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://msgid.link/a406b535-dc55-4856-8ae9-5a063644a1af@linux.ibm.com
# < /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 3281366a8e79a512956382885091565db1036b64
# make -s -j 160 ARCH=arm64 O=/kisskb/build/powerpc-next_defconfig_arm64-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/aarch64-linux/bin/aarch64-linux-  defconfig
# < make -s -j 160 ARCH=arm64 O=/kisskb/build/powerpc-next_defconfig_arm64-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/aarch64-linux/bin/aarch64-linux-  help
# make -s -j 160 ARCH=arm64 O=/kisskb/build/powerpc-next_defconfig_arm64-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/aarch64-linux/bin/aarch64-linux-  olddefconfig
# make -s -j 160 ARCH=arm64 O=/kisskb/build/powerpc-next_defconfig_arm64-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/aarch64-linux/bin/aarch64-linux-  
Completed OK
# rm -rf /kisskb/build/powerpc-next_defconfig_arm64-gcc12
# Build took: 0:07:10.816801