nptl/sem_wait.s

   1         .text
   2         .p2align 4,,15
   3         .type   __sem_wait_cleanup, @function
   4 __sem_wait_cleanup:
   5         movabsq $-4294967296, %rax
   6         lock addq       %rax, (%rdi)
   7         ret
   8         .size   __sem_wait_cleanup, .-__sem_wait_cleanup
   9         .p2align 4,,15
  10         .type   do_futex_wait.constprop.2, @function
  11 do_futex_wait.constprop.2:
  12         movl    8(%rdi), %r8d
  13         xorl    %ecx, %ecx
  14         xorl    %edx, %edx
  15         xorl    %esi, %esi
  16         jmp     __futex_abstimed_wait_cancelable64@PLT
  17         .size   do_futex_wait.constprop.2, .-do_futex_wait.constprop.2
  18         .p2align 4,,15
  19         .type   __new_sem_wait_slow64.constprop.1, @function
  20 __new_sem_wait_slow64.constprop.1:
  21         pushq   %r13
  22         pushq   %r12
  23         pushq   %rbp
  24         pushq   %rbx
  25         movabsq $4294967296, %rbp
  26         movq    %rdi, %rbx
  27         subq    $40, %rsp
  28         lock xaddq      %rbp, (%rdi)
  29         leaq    __sem_wait_cleanup(%rip), %rsi
  30         movabsq $-4294967297, %r13
  31         movq    %rsp, %r12
  32         movq    %rdi, %rdx
  33         movq    %r12, %rdi
  34         call    __pthread_cleanup_push@PLT
  35 .L5:
  36         testl   %ebp, %ebp
  37         je      .L13
  38         leaq    0(%rbp,%r13), %rdx
  39         movq    %rbp, %rax
  40         lock cmpxchgq   %rdx, (%rbx)
  41         movq    %rax, %rbp
  42         jne     .L5
  43         xorl    %ebx, %ebx
  44 .L9:
  45         movq    %r12, %rdi
  46         xorl    %esi, %esi
  47         call    __pthread_cleanup_pop@PLT
  48         addq    $40, %rsp
  49         movl    %ebx, %eax
  50         popq    %rbx
  51         popq    %rbp
  52         popq    %r12
  53         popq    %r13
  54         ret
  55         .p2align 4,,10
  56         .p2align 3
  57 .L13:
  58         movq    %rbx, %rdi
  59         call    do_futex_wait.constprop.2
  60         cmpl    $110, %eax
  61         je      .L7
  62         cmpl    $4, %eax
  63         je      .L7
  64         cmpl    $75, %eax
  65         je      .L7
  66         movq    (%rbx), %rbp
  67         jmp     .L5
  68         .p2align 4,,10
  69         .p2align 3
  70 .L7:
  71         movq    errno@gottpoff(%rip), %rdx
  72         movl    %eax, %fs:(%rdx)
  73         movabsq $-4294967296, %rax
  74         lock addq       %rax, (%rbx)
  75         movl    $-1, %ebx
  76         jmp     .L9
  77         .size   __new_sem_wait_slow64.constprop.1, .-__new_sem_wait_slow64.constprop.1
  78         .p2align 4,,15
  79         .globl  __new_sem_wait
  80         .type   __new_sem_wait, @function
  81 __new_sem_wait:
  82         pushq   %rbx
  83         movq    %rdi, %rbx
  84         call    __pthread_testcancel@PLT
  85         movq    (%rbx), %rax
  86         testl   %eax, %eax
  87         je      .L16
  88         leaq    -1(%rax), %rdx
  89         lock cmpxchgq   %rdx, (%rbx)
  90         jne     .L16
  91         xorl    %eax, %eax
  92         popq    %rbx
  93         ret
  94         .p2align 4,,10
  95         .p2align 3
  96 .L16:
  97         movq    %rbx, %rdi
  98         popq    %rbx
  99         jmp     __new_sem_wait_slow64.constprop.1
 100         .size   __new_sem_wait, .-__new_sem_wait
 101         .weak   sem_wait
 102         .set    sem_wait,__new_sem_wait
 103         .p2align 4,,15
 104         .globl  __new_sem_trywait
 105         .type   __new_sem_trywait, @function
 106 __new_sem_trywait:
 107         movq    (%rdi), %rax
 108 .L23:
 109         testl   %eax, %eax
 110         je      .L22
 111         leaq    -1(%rax), %rdx
 112         lock cmpxchgq   %rdx, (%rdi)
 113         jne     .L23
 114         xorl    %eax, %eax
 115         ret
 116         .p2align 4,,10
 117         .p2align 3
 118 .L22:
 119         movq    errno@gottpoff(%rip), %rax
 120         movl    $11, %fs:(%rax)
 121         movl    $-1, %eax
 122         ret
 123         .size   __new_sem_trywait, .-__new_sem_trywait
 124         .weak   sem_trywait
 125         .set    sem_trywait,__new_sem_trywait