nptl/sem_post.shared.s

   1         .text
   2 #APP
   3         .symver __new_sem_post,sem_post@@GLIBC_2.2.5
   4         .section        .rodata.str1.8,"aMS",@progbits,1
   5         .align 8
   6 .LC0:
   7         .string "The futex facility returned an unexpected error code.\n"
   8 #NO_APP
   9         .text
  10         .p2align 4,,15
  11         .globl  __new_sem_post
  12         .type   __new_sem_post, @function
  13 __new_sem_post:
  14         movl    8(%rdi), %esi
  15         movq    (%rdi), %rax
  16 .L4:
  17         cmpl    $2147483647, %eax
  18         je      .L17
  19         leaq    1(%rax), %rdx
  20         lock cmpxchgq   %rdx, (%rdi)
  21         jne     .L4
  22         shrq    $32, %rax
  23         testq   %rax, %rax
  24         je      .L7
  25         xorb    $-127, %sil
  26         xorl    %r10d, %r10d
  27         movl    $1, %edx
  28         movl    $202, %eax
  29 #APP
  30 # 209 "../sysdeps/nptl/futex-internal.h" 1
  31         syscall
  32
  33 # 0 "" 2
  34 #NO_APP
  35         cmpq    $-4096, %rax
  36         ja      .L18
  37 .L7:
  38         xorl    %eax, %eax
  39         ret
  40         .p2align 4,,10
  41         .p2align 3
  42 .L18:
  43         cmpl    $-22, %eax
  44         je      .L7
  45         cmpl    $-14, %eax
  46         je      .L7
  47         leaq    .LC0(%rip), %rdi
  48         subq    $8, %rsp
  49         call    __libc_fatal@PLT
  50         .p2align 4,,10
  51         .p2align 3
  52 .L17:
  53         movq    errno@gottpoff(%rip), %rax
  54         movl    $75, %fs:(%rax)
  55         movl    $-1, %eax
  56         ret
  57         .size   __new_sem_post, .-__new_sem_post