# git rev-parse -q --verify a02cbc7ffe529ed58b6bbe54652104fc2c88bd77^{commit}
a02cbc7ffe529ed58b6bbe54652104fc2c88bd77
already have revision, skipping fetch
# git checkout -q -f -B kisskb a02cbc7ffe529ed58b6bbe54652104fc2c88bd77
# git clean -qxdf
# < git log -1
# commit a02cbc7ffe529ed58b6bbe54652104fc2c88bd77
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Mon Oct 14 13:30:43 2019 +1100
# 
#     selftests/powerpc: Fixup clobbers for TM tests
#     
#     Some of our TM (Transactional Memory) tests, list "r1" (the stack
#     pointer) as a clobbered register.
#     
#     GCC >= 9 doesn't accept this, and the build breaks:
#     
#       ptrace-tm-spd-tar.c: In function 'tm_spd_tar':
#       ptrace-tm-spd-tar.c:31:2: error: listing the stack pointer register 'r1' in a clobber list is deprecated [-Werror=deprecated]
#          31 |  asm __volatile__(
#             |  ^~~
#       ptrace-tm-spd-tar.c:31:2: note: the value of the stack pointer after an 'asm' statement must be the same as it was before the statement
#     
#     We do have some fairly large inline asm blocks in these tests, and
#     some of them do change the value of r1. However they should all return
#     to C with the value in r1 restored, so I think it's legitimate to say
#     r1 is not clobbered.
#     
#     As Segher points out, the r1 clobbers may have been added because of
#     the use of `or 1,1,1`, however that doesn't actually clobber r1.
#     
#     Segher also points out that some of these tests do clobber LR, because
#     they call functions, and that is not listed in the clobbers, so add
#     that where appropriate.
#     
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20191029095324.14669-1-mpe@ellerman.id.au
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version
# < git log --format=%s --max-count=1 a02cbc7ffe529ed58b6bbe54652104fc2c88bd77
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_pq2fads_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  pq2fads_defconfig
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_pq2fads_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here
/kisskb/src/drivers/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1836:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1749:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
INFO: Uncompressed kernel (size 0x591698) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
INFO: Uncompressed kernel (size 0x58108c) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
Image Name:   Linux-5.4.0-rc2-ga02cbc7ffe52
Created:      Wed Oct 30 01:26:00 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2879335 Bytes = 2811.85 KiB = 2.75 MiB
Load Address: 00600000
Entry Point:  00600888
Image Name:   Linux-5.4.0-rc2-ga02cbc7ffe52
Created:      Wed Oct 30 01:26:00 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2846620 Bytes = 2779.90 KiB = 2.71 MiB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/powerpc-next_pq2fads_defconfig_powerpc-gcc4.6
# Build took: 0:00:30.934409