diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S | 35 |
1 files changed, 25 insertions, 10 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S index f6b6ab246c..80cbf7e430 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S @@ -51,7 +51,8 @@ __pthread_cond_timedwait: .Lpush_r13: pushq %r14 .Lpush_r14: - subq $80, %rsp +#define FRAME_SIZE 80 + subq $FRAME_SIZE, %rsp .Lsubq: /* Stack frame: @@ -67,6 +68,8 @@ __pthread_cond_timedwait: +--------------------------+ rsp + 8 | condvar pointer | +--------------------------+ + rsp + 4 | old broadcast_seq value | + +--------------------------+ rsp + 0 | old cancellation mode | +--------------------------+ */ @@ -116,7 +119,9 @@ __pthread_cond_timedwait: /* Get and store current wakeup_seq value. */ movq 8(%rsp), %rdi movq wakeup_seq(%rdi), %r12 + movl broadcast_seq(%rdi), %edx movq %r12, 40(%rsp) + movl %edx, 4(%rsp) /* Get the current time. */ 8: @@ -160,7 +165,8 @@ __pthread_cond_timedwait: decq %rcx 12: testq %rcx, %rcx movq 8(%rsp), %rdi - js 13f + movq $-ETIMEDOUT, %r14 + js 6f /* Store relative timeout. */ 21: movq %rcx, 24(%rsp) @@ -201,10 +207,15 @@ __pthread_cond_timedwait: #endif jne 5f -6: movq woken_seq(%rdi), %rax +6: movl broadcast_seq(%rdi), %edx + + movq woken_seq(%rdi), %rax movq wakeup_seq(%rdi), %r12 + cmpl 4(%rsp), %edx + jne 23f + cmpq 40(%rsp), %r12 jbe 15f @@ -218,10 +229,13 @@ __pthread_cond_timedwait: movq $ETIMEDOUT, %r14 jmp 14f +23: xorq %r14, %r14 + jmp 24f + 9: xorq %r14, %r14 14: incq woken_seq(%rdi) - LOCK +24: LOCK #if cond_lock == 0 decl (%rdi) #else @@ -239,7 +253,7 @@ __pthread_cond_timedwait: testq %rax, %rax cmoveq %r14, %rax -18: addq $80, %rsp +18: addq $FRAME_SIZE, %rsp .Laddq: popq %r14 .Lpop_r14: @@ -259,7 +273,7 @@ __pthread_cond_timedwait: callq __lll_mutex_lock_wait jmp 2b - /* Unlock in loop requires waekup. */ + /* Unlock in loop requires wakeup. */ 3: #if cond_lock != 0 addq $cond_lock, %rdi @@ -278,7 +292,7 @@ __pthread_cond_timedwait: #endif jmp 6b - /* Unlock after loop requires waekup. */ + /* Unlock after loop requires wakeup. */ 10: #if cond_lock != 0 addq $cond_lock, %rdi @@ -325,7 +339,8 @@ __pthread_cond_timedwait: decq %rcx 20: testq %rcx, %rcx movq 8(%rsp), %rdi - js 13b + movq $-ETIMEDOUT, %r14 + js 6b jmp 21b #endif .LENDCODE: @@ -394,7 +409,7 @@ versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait, .uleb128 4 .byte 0x40+.Lsubq-.Lpush_r14 # DW_CFA_advance_loc+N .byte 14 # DW_CFA_def_cfa_offset - .uleb128 112 + .uleb128 32+FRAME_SIZE .byte 3 # DW_CFA_advance_loc2 .2byte .Laddq-.Lsubq .byte 14 # DW_CFA_def_cfa_offset @@ -413,7 +428,7 @@ versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait, .byte 0xcc # DW_CFA_restore %r12 .byte 0x40+.LSbl1-.Lpop_r12 # DW_CFA_advance_loc+N .byte 14 # DW_CFA_def_cfa_offset - .uleb128 112 + .uleb128 32+FRAME_SIZE .byte 0x8c # DW_CFA_offset %r12 .uleb128 2 .byte 0x8d # DW_CFA_offset %r13 |