| commit | 02782fd12849b6673cb5c2728cb750e8ec295aa3 | |
| author | Stefan Liebler <stli@linux.ibm.com> | |
| Thu, 22 Feb 2024 14:03:27 +0000 (22 15:03 +0100) | ||
| committer | Stefan Liebler <stli@linux.ibm.com> | |
| Mon, 26 Feb 2024 12:37:46 +0000 (26 13:37 +0100) | ||
| tree | 59524fadd808d68650a173b490b3495f68c4d745 | treesnapshot (tar.gz zip) |
| parent | 9f78a7c1d0963282608da836b840f0d5ae1c478e | commitdiff |
S390: Do not clobber r7 in clone [BZ #31402]
Starting with commit e57d8fc97b90127de4ed3e3a9cdf663667580935
"S390: Always use svc 0"
clone clobbers the call-saved register r7 in error case:
function or stack is NULL.
This patch restores the saved registers also in the error case.
Furthermore the existing test misc/tst-clone is extended to check
all error cases and that clone does not clobber registers in this
error case.
Starting with commit e57d8fc97b90127de4ed3e3a9cdf663667580935
"S390: Always use svc 0"
clone clobbers the call-saved register r7 in error case:
function or stack is NULL.
This patch restores the saved registers also in the error case.
Furthermore the existing test misc/tst-clone is extended to check
all error cases and that clone does not clobber registers in this
error case.
| sysdeps/unix/sysv/linux/s390/s390-32/clone.S | diffblobblamehistory | |
| sysdeps/unix/sysv/linux/s390/s390-64/clone.S | diffblobblamehistory | |
| sysdeps/unix/sysv/linux/tst-clone.c | diffblobblamehistory |