# git rev-parse -q --verify 810bd8840ef990a200f58c9dea9abe767ca02a3a^{commit}
810bd8840ef990a200f58c9dea9abe767ca02a3a
already have revision, skipping fetch
# git checkout -q -f -B kisskb 810bd8840ef990a200f58c9dea9abe767ca02a3a
# git clean -qxdf
# < git log -1
# commit 810bd8840ef990a200f58c9dea9abe767ca02a3a
# Author: Christophe Leroy <christophe.leroy@csgroup.eu>
# Date:   Tue Jul 7 18:29:35 2020 +0000
# 
#     powerpc/signal64: Don't opencode page prefaulting
#     
#     Instead of doing a __get_user() from the first and last location
#     into a tmp var which won't be used, use fault_in_pages_readable()
# < /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 810bd8840ef990a200f58c9dea9abe767ca02a3a
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/chleroy_ppc64e_defconfig+KEXEC_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc64e_defconfig
# Added to kconfig CONFIG_KEXEC=y
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/chleroy_ppc64e_defconfig+KEXEC_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/chleroy_ppc64e_defconfig+KEXEC_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
.config:2900:warning: override: reassigning to symbol KEXEC
# make -s -j 48 ARCH=powerpc O=/kisskb/build/chleroy_ppc64e_defconfig+KEXEC_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  
INFO: Uncompressed kernel (size 0xc3d188) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0xd00000)
Image Name:   Linux-5.8.0-rc4-g810bd8840ef9
Created:      Wed Jul  8 07:06:06 2020
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    5116549 Bytes = 4996.63 KiB = 4.88 MiB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/chleroy_ppc64e_defconfig+KEXEC_powerpc-gcc4.9
# Build took: 0:02:03.785647