nptl/flockfile.s

   1         .text
   2         .p2align 4,,15
   3         .globl  __flockfile
   4         .type   __flockfile, @function
   5 __flockfile:
   6         pushq   %rbp
   7         pushq   %rbx
   8         subq    $8, %rsp
   9         movq    136(%rdi), %rdx
  10         orl     $128, 116(%rdi)
  11         movq    %fs:16, %rbp
  12         cmpq    %rbp, 8(%rdx)
  13         je      .L2
  14         movq    %rdi, %rbx
  15         xorl    %eax, %eax
  16         movl    $1, %ecx
  17         lock cmpxchgl   %ecx, (%rdx)
  18         jne     .L6
  19 .L3:
  20         movq    136(%rbx), %rdx
  21         movq    %rbp, 8(%rdx)
  22 .L2:
  23         addl    $1, 4(%rdx)
  24         addq    $8, %rsp
  25         popq    %rbx
  26         popq    %rbp
  27         ret
  28         .p2align 4,,10
  29         .p2align 3
  30 .L6:
  31         movq    %rdx, %rdi
  32         call    __lll_lock_wait_private@PLT
  33         jmp     .L3
  34         .size   __flockfile, .-__flockfile
  35         .weak   flockfile
  36         .set    flockfile,__flockfile
  37         .globl  _IO_flockfile
  38         .set    _IO_flockfile,__flockfile