diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S index 1a088e27b1..69243950d7 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S @@ -46,8 +46,13 @@ .hidden __lll_robust_mutex_lock_wait .align 16 __lll_robust_mutex_lock_wait: + cfi_startproc pushq %r10 + cfi_adjust_cfa_offset(8) pushq %rdx + cfi_adjust_cfa_offset(8) + cfi_offset(%r10, -16) + cfi_offset(%rdx, -24) xorq %r10, %r10 /* No timeout. */ #if FUTEX_WAIT == 0 @@ -85,8 +90,13 @@ __lll_robust_mutex_lock_wait: /* NB: %rax == 0 */ 3: popq %rdx + cfi_adjust_cfa_offset(-8) + cfi_restore(%rdx) popq %r10 + cfi_adjust_cfa_offset(-8) + cfi_restore(%r10) retq + cfi_endproc .size __lll_robust_mutex_lock_wait,.-__lll_robust_mutex_lock_wait @@ -95,17 +105,27 @@ __lll_robust_mutex_lock_wait: .hidden __lll_robust_mutex_timedlock_wait .align 16 __lll_robust_mutex_timedlock_wait: + cfi_startproc /* Check for a valid timeout value. */ cmpq $1000000000, 8(%rdx) jae 3f pushq %r8 + cfi_adjust_cfa_offset(8) pushq %r9 + cfi_adjust_cfa_offset(8) pushq %r12 + cfi_adjust_cfa_offset(8) pushq %r13 + cfi_adjust_cfa_offset(8) + cfi_offset(%r8, -16) + cfi_offset(%r9, -24) + cfi_offset(%r12, -32) + cfi_offset(%r13, -40) /* Stack frame for the timespec and timeval structs. */ subq $24, %rsp + cfi_adjust_cfa_offset(24) movq %rdi, %r12 movq %rdx, %r13 @@ -176,19 +196,34 @@ __lll_robust_mutex_timedlock_wait: jnz 7f 6: addq $24, %rsp + cfi_adjust_cfa_offset(-24) popq %r13 + cfi_adjust_cfa_offset(-8) + cfi_restore(%r13) popq %r12 + cfi_adjust_cfa_offset(-8) + cfi_restore(%r12) popq %r9 + cfi_adjust_cfa_offset(-8) + cfi_restore(%r9) popq %r8 + cfi_adjust_cfa_offset(-8) + cfi_restore(%r8) retq +3: movl $EINVAL, %eax + retq + + cfi_adjust_cfa_offset(56) + cfi_offset(%r8, -16) + cfi_offset(%r9, -24) + cfi_offset(%r12, -32) + cfi_offset(%r13, -40) /* Check whether the time expired. */ 7: cmpq $-ETIMEDOUT, %rcx jne 1b 8: movl $ETIMEDOUT, %eax jmp 6b - -3: movl $EINVAL, %eax - retq + cfi_endproc .size __lll_robust_mutex_timedlock_wait,.-__lll_robust_mutex_timedlock_wait |