# git rev-parse -q --verify 9ede3728899d26f7bd67fd6b8830d58b9ac1a569^{commit}
9ede3728899d26f7bd67fd6b8830d58b9ac1a569
already have revision, skipping fetch
# git checkout -q -f -B kisskb 9ede3728899d26f7bd67fd6b8830d58b9ac1a569
# git clean -qxdf
# < git log -1
# commit 9ede3728899d26f7bd67fd6b8830d58b9ac1a569
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Tue Jan 15 16:19:05 2019 +1100
# 
#     powerpc/syscalls: Fix syscall tracing
#     
#     Recently in commit fbf508da7440 ("powerpc: split compat syscall table
#     out from native table") we change the layout of the system call table.
#     Instead of having two entries for each syscall number, one for the
#     regular entry point and one for the compat entry point, we now have
#     separate tables for regular and compat.
#     
#     This inadvertently broke syscall tracing (CONFIG_FTRACE_SYSCALLS),
#     because our implementation of arch_syscall_addr() knew about the
#     layout of the table (it did nr * 2).
#     
#     We can fix it just by dropping our version of arch_syscall_addr() and
#     using the generic version which does:
#     
#             return (unsigned long)sys_call_table[nr];
#     
#     Fixes: fbf508da7440 ("powerpc: split compat syscall table out from native table")
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 9ede3728899d26f7bd67fd6b8830d58b9ac1a569
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_40x_acadia_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  40x/acadia_defconfig
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_40x_acadia_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/arch/powerpc/kernel/head_40x.S: Assembler messages:
/kisskb/src/arch/powerpc/kernel/head_40x.S:883: Warning: invalid register expression
INFO: Uncompressed kernel (size 0x4a9bf8) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Image Name:   Linux-5.0.0-rc1-g9ede3728899d
Created:      Tue Jan 15 20:58:17 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2392615 Bytes = 2336.54 KiB = 2.28 MiB
Load Address: 00500000
Entry Point:  005017dc
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_40x_acadia_defconfig_powerpc-gcc5
# Build took: 0:00:22.125822