# git rev-parse -q --verify cd278456d4ca0e6b3d5e10ace4566524baa144eb^{commit}
cd278456d4ca0e6b3d5e10ace4566524baa144eb
already have revision, skipping fetch
# git checkout -q -f -B kisskb cd278456d4ca0e6b3d5e10ace4566524baa144eb
# git clean -qxdf
# < git log -1
# commit cd278456d4ca0e6b3d5e10ace4566524baa144eb
# Merge: 7d19ea5e9973 6607aa6f6b68
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Feb 28 12:06:45 2021 -0800
# 
#     Merge tag 'csky-for-linus-5.12-rc1' of git://github.com/c-sky/csky-linux
#     
#     Pull arch/csky updates from Guo Ren:
#      "Features:
#        - add new memory layout 2.5G(user):1.5G(kernel)
#        - add kmemleak support
#        - reconstruct VDSO framework: add VDSO with GENERIC_GETTIMEOFDAY,
#          GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO
#        - add faulthandler_disabled() check
#        - support (fix) swapon
#        - add (fix) _PAGE_ACCESSED for default pgprot
#        - abort uaccess retries upon fatal signal (from arm)
#     
#       Fixes and optimizations:
#        - fix perf probe failure
#        - fix show_regs doesn't contain regs->usp
#        - remove custom asm/atomic.h implementation
#        - fix barrier design
#        - fix futex SMP implementation
#        - fix asm/cmpxchg.h with correct ordering barrier
#        - cleanup asm/spinlock.h
#        - fix PTE global for 2.5:1.5 virtual memory
#        - remove prologue of page fault handler in entry.S
#        - fix TLB maintenance synchronization problem
#        - add show_tlb for CPU_CK860 debug
#        - fix FAULT_FLAG_XXX param for handle_mm_fault
#        - fix update_mmu_cache called with user io mapping
#        - fix do_page_fault parent irq status
#        - fix a size determination in gpr_get()
#        - pgtable.h: Coding convention
#        - kprobe: Fix code in simulate without 'long'
#        - fix pfn_valid error with wrong max_mapnr
#        - use free_initmem_default() in free_initmem()
#        - fix compile error"
#     
#     * tag 'csky-for-linus-5.12-rc1' of git://github.com/c-sky/csky-linux: (30 commits)
#       csky: Fixup compile error
#       csky: use free_initmem_default() in free_initmem()
#       csky: Fixup pfn_valid error with wrong max_mapnr
#       csky: Add VDSO with GENERIC_GETTIMEOFDAY, GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO
#       csky: kprobe: Fixup code in simulate without 'long'
#       csky: Fixup swapon
#       csky: pgtable.h: Coding convention
#       csky: Fixup _PAGE_ACCESSED for default pgprot
#       csky: remove unused including <linux/version.h>
#       csky: Fix a size determination in gpr_get()
#       csky: Reconstruct VDSO framework
#       csky: mm: abort uaccess retries upon fatal signal
#       csky: Sync riscv mm/fault.c for easy maintenance
#       csky: Fixup do_page_fault parent irq status
#       csky: Add faulthandler_disabled() check
#       csky: Fixup update_mmu_cache called with user io mapping
#       csky: Fixup FAULT_FLAG_XXX param for handle_mm_fault
#       csky: Add show_tlb for CPU_CK860 debug
#       csky: Fix TLB maintenance synchronization problem
#       csky: Add kmemleak support
#       ...
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-ld --version
# < git log --format=%s --max-count=1 cd278456d4ca0e6b3d5e10ace4566524baa144eb
# < make -s -j 48 ARCH=arm O=/kisskb/build/linus_pleb_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  pleb_defconfig
# < make -s -j 48 ARCH=arm O=/kisskb/build/linus_pleb_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  help
# make -s -j 48 ARCH=arm O=/kisskb/build/linus_pleb_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  olddefconfig
# make -s -j 48 ARCH=arm O=/kisskb/build/linus_pleb_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  
Completed OK
# rm -rf /kisskb/build/linus_pleb_defconfig_arm-gcc4.9
# Build took: 0:00:39.420062