libio/ferror.s

   1         .text
   2         .p2align 4,,15
   3         .globl  _IO_ferror
   4         .type   _IO_ferror, @function
   5 _IO_ferror:
   6         testb   $-128, 116(%rdi)
   7         movl    (%rdi), %eax
   8         je      .L4
   9         movl    %eax, %edx
  10         andl    $32768, %edx
  11         jne     .L4
  12         pushq   %rbp
  13         pushq   %rbx
  14         subq    $8, %rsp
  15         movq    136(%rdi), %rcx
  16         movq    %fs:16, %rbp
  17         cmpq    8(%rcx), %rbp
  18         je      .L5
  19         movq    %rdi, %rbx
  20 #APP
  21 # 37 "ferror.c" 1
  22         movl %fs:24,%eax
  23 # 0 "" 2
  24 #NO_APP
  25         testl   %eax, %eax
  26         jne     .L6
  27         movl    $1, %edx
  28 #APP
  29 # 47 "../sysdeps/unix/sysv/linux/x86/lowlevellock.h" 1
  30         cmpxchgl %edx, (%rcx)
  31 # 0 "" 2
  32 #NO_APP
  33 .L7:
  34         movl    (%rbx), %esi
  35         movq    136(%rbx), %rcx
  36         movl    %esi, %r8d
  37         movq    %rbp, 8(%rcx)
  38         movl    4(%rcx), %edx
  39         shrl    $5, %r8d
  40         andl    $1, %r8d
  41         andl    $32768, %esi
  42         jne     .L18
  43 .L8:
  44         testl   %edx, %edx
  45         jne     .L1
  46         movq    $0, 8(%rcx)
  47 #APP
  48 # 39 "ferror.c" 1
  49         movl %fs:24,%eax
  50 # 0 "" 2
  51 #NO_APP
  52         testl   %eax, %eax
  53         jne     .L9
  54         subl    $1, (%rcx)
  55 .L1:
  56         addq    $8, %rsp
  57         movl    %r8d, %eax
  58         popq    %rbx
  59         popq    %rbp
  60         ret
  61         .p2align 4,,10
  62         .p2align 3
  63 .L4:
  64         shrl    $5, %eax
  65         andl    $1, %eax
  66         ret
  67         .p2align 4,,10
  68         .p2align 3
  69 .L5:
  70         shrl    $5, %eax
  71         movl    4(%rcx), %edx
  72         andl    $1, %eax
  73         movl    %eax, %r8d
  74         jmp     .L8
  75         .p2align 4,,10
  76         .p2align 3
  77 .L6:
  78         movl    $1, %esi
  79         movl    %edx, %eax
  80         lock cmpxchgl   %esi, (%rcx)
  81         je      .L7
  82         movq    %rcx, %rdi
  83         call    __lll_lock_wait_private
  84         jmp     .L7
  85         .p2align 4,,10
  86         .p2align 3
  87 .L9:
  88 #APP
  89 # 39 "ferror.c" 1
  90         xchgl %edx, (%rcx)
  91 # 0 "" 2
  92 #NO_APP
  93         cmpl    $1, %edx
  94         jle     .L1
  95         xorl    %r10d, %r10d
  96         movl    $1, %edx
  97         movl    $129, %esi
  98         movq    %rcx, %rdi
  99         movl    $202, %eax
 100 #APP
 101 # 39 "ferror.c" 1
 102         syscall
 103
 104 # 0 "" 2
 105 #NO_APP
 106         jmp     .L1
 107 .L18:
 108         addl    $1, %edx
 109         movl    %edx, 4(%rcx)
 110         jmp     .L1
 111         .size   _IO_ferror, .-_IO_ferror
 112         .weak   ferror
 113         .set    ferror,_IO_ferror
 114         .hidden __lll_lock_wait_private