stdio-common/ftrylockfile.shared.s

   1         .text
   2 #APP
   3         memmove = __GI_memmove
   4         memset = __GI_memset
   5         memcpy = __GI_memcpy
   6 #NO_APP
   7         .p2align 4,,15
   8         .globl  __ftrylockfile
   9         .type   __ftrylockfile, @function
  10 __ftrylockfile:
  11         movq    136(%rdi), %rdx
  12         movq    %fs:16, %rcx
  13         cmpq    %rcx, 8(%rdx)
  14         je      .L2
  15 #APP
  16 # 28 "../sysdeps/pthread/ftrylockfile.c" 1
  17         movl %fs:24,%eax
  18 # 0 "" 2
  19 #NO_APP
  20         testl   %eax, %eax
  21         jne     .L3
  22         movl    $1, %esi
  23 #APP
  24 # 47 "../sysdeps/unix/sysv/linux/x86/lowlevellock.h" 1
  25         cmpxchgl %esi, (%rdx)
  26 # 0 "" 2
  27 #NO_APP
  28 .L4:
  29         testl   %eax, %eax
  30         jne     .L6
  31         movq    136(%rdi), %rdx
  32         movq    %rcx, 8(%rdx)
  33         movl    $1, 4(%rdx)
  34         ret
  35         .p2align 4,,10
  36         .p2align 3
  37 .L6:
  38         movl    $16, %eax
  39         ret
  40         .p2align 4,,10
  41         .p2align 3
  42 .L2:
  43         addl    $1, 4(%rdx)
  44         xorl    %eax, %eax
  45         ret
  46         .p2align 4,,10
  47         .p2align 3
  48 .L3:
  49         xorl    %eax, %eax
  50         movl    $1, %esi
  51         lock cmpxchgl   %esi, (%rdx)
  52         setne   %al
  53         movzbl  %al, %eax
  54         jmp     .L4
  55         .size   __ftrylockfile, .-__ftrylockfile
  56         .weak   ftrylockfile
  57         .set    ftrylockfile,__ftrylockfile
  58         .globl  _IO_ftrylockfile
  59         .set    _IO_ftrylockfile,__ftrylockfile