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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> | 2015-08-03 14:32:47 -0700 |
| commit | 1c8f0fb6a4ebef1080e254753e6a4e6c07a66a4f (patch) | |
| tree | 63c32a7a3e3d15974a32d1304c0b7a3022b97bc5 | |
| parent | 08094d48c130d3ae6182296ef3c9561ca1066b39 (diff) | |
| download | glibc-1c8f0fb6a4ebef1080e254753e6a4e6c07a66a4f.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) |