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| author | H.J. Lu <hjl.tools@gmail.com> | 2015-07-12 14:40:25 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2015-08-01 13:05:23 -0700 |
| commit | 5958c1784e0f5b6f476f927ac6a449ec6e0f911e (patch) | |
| tree | 499721e1a9387a7b227b64686e47b03a8ca0125f | |
| parent | fa1f4698c17560f8e2bdaa9b89dafc780b00e3b9 (diff) | |
| download | glibc-5958c1784e0f5b6f476f927ac6a449ec6e0f911e.tar.gz | |
Align stack to 16 bytes when calling __gettimeofday
Subtract stack by 24 bytes instead of 16 bytes so that stack is aligned
to 16 bytes when calling __gettimeofday.
[BZ #18661]
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
(__lll_timedwait_tid): Align stack to 16 bytes when calling
__gettimeofday.
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/lowlevellock.S | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S b/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S index 0935db5ba4..8e1a39dafb 100644 --- a/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S +++ b/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S @@ -394,8 +394,9 @@ __lll_timedwait_tid: movq %rdi, %r12 movq %rsi, %r13 - subq $16, %rsp - cfi_adjust_cfa_offset(16) + /* Align stack to 16 bytes when calling __gettimeofday. */ + subq $24, %rsp + cfi_adjust_cfa_offset(24) /* Get current time. */ 2: movq %rsp, %rdi @@ -441,8 +442,8 @@ __lll_timedwait_tid: jne 1f 4: xorl %eax, %eax -8: addq $16, %rsp - cfi_adjust_cfa_offset(-16) +8: addq $24, %rsp + cfi_adjust_cfa_offset(-24) popq %r13 cfi_adjust_cfa_offset(-8) cfi_restore(%r13) |