# 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/ia64-linux/bin/ia64-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-ld --version
# < git log --format=%s --max-count=1 a02cbc7ffe529ed58b6bbe54652104fc2c88bd77
# < make -s -j 120 ARCH=ia64 O=/kisskb/build/powerpc-next_ia64-defconfig_ia64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-  defconfig
# make -s -j 120 ARCH=ia64 O=/kisskb/build/powerpc-next_ia64-defconfig_ia64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
/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/mm/vmstat.c: In function 'sysctl_vm_numa_stat_handler':
/kisskb/src/mm/vmstat.c:90:5: warning: 'oldval' 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/fs/udf/unicode.c: In function 'udf_name_conv_char':
/kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/nfs/read.c: In function 'nfs_read_completion':
/kisskb/src/fs/nfs/read.c:196:5: warning: value computed is not used [-Wunused-value]
/kisskb/src/fs/nfs/read.c: In function 'nfs_readpage':
/kisskb/src/fs/nfs/read.c:352:2: warning: value computed is not used [-Wunused-value]
/kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page':
/kisskb/src/mm/hugetlb.c:1497:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc':
/kisskb/src/fs/nfsd/nfs4xdr.c:2076:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/usb/core/devio.c: In function 'async_completed':
/kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized]
No errors detected in 21694 functions.
Completed OK
# rm -rf /kisskb/build/powerpc-next_ia64-defconfig_ia64
# Build took: 0:01:09.403776