libio/rewind.s

   1         .text
   2         .p2align 4,,15
   3         .globl  rewind
   4         .hidden rewind
   5         .type   rewind, @function
   6 rewind:
   7 .LFB68:
   8         pushq   %rbp
   9         pushq   %rbx
  10         movq    %rdi, %rbx
  11         subq    $8, %rsp
  12         movl    (%rdi), %edx
  13         andl    $32768, %edx
  14         jne     .L2
  15         movq    136(%rdi), %rdi
  16         movq    %fs:16, %rbp
  17         cmpq    %rbp, 8(%rdi)
  18         je      .L3
  19 #APP
  20 # 34 "rewind.c" 1
  21         movl %fs:24,%eax
  22 # 0 "" 2
  23 #NO_APP
  24         testl   %eax, %eax
  25         jne     .L4
  26         movl    $1, %edx
  27 #APP
  28 # 47 "../sysdeps/unix/sysv/linux/x86/lowlevellock.h" 1
  29         cmpxchgl %edx, (%rdi)
  30 # 0 "" 2
  31 #NO_APP
  32 .L5:
  33         movq    136(%rbx), %rdi
  34         movq    %rbp, 8(%rdi)
  35 .L3:
  36         addl    $1, 4(%rdi)
  37 .L2:
  38         movl    $3, %ecx
  39         xorl    %edx, %edx
  40         xorl    %esi, %esi
  41         movq    %rbx, %rdi
  42 .LEHB0:
  43         call    _IO_seekoff_unlocked
  44         movl    (%rbx), %eax
  45         movl    %eax, %edx
  46         andl    $-49, %edx
  47         testb   $-128, %ah
  48         movl    %edx, (%rbx)
  49         jne     .L1
  50         movq    136(%rbx), %rdi
  51         movl    4(%rdi), %eax
  52         subl    $1, %eax
  53         testl   %eax, %eax
  54         movl    %eax, 4(%rdi)
  55         jne     .L1
  56         movq    $0, 8(%rdi)
  57 #APP
  58 # 885 "libioP.h" 1
  59         movl %fs:24,%edx
  60 # 0 "" 2
  61 #NO_APP
  62         testl   %edx, %edx
  63         jne     .L11
  64         subl    $1, (%rdi)
  65 .L1:
  66         addq    $8, %rsp
  67         popq    %rbx
  68         popq    %rbp
  69         ret
  70         .p2align 4,,10
  71         .p2align 3
  72 .L4:
  73         movl    $1, %ecx
  74         movl    %edx, %eax
  75         lock cmpxchgl   %ecx, (%rdi)
  76         je      .L5
  77         call    __lll_lock_wait_private
  78 .LEHE0:
  79         jmp     .L5
  80         .p2align 4,,10
  81         .p2align 3
  82 .L11:
  83 #APP
  84 # 885 "libioP.h" 1
  85         xchgl %eax, (%rdi)
  86 # 0 "" 2
  87 #NO_APP
  88         cmpl    $1, %eax
  89         jle     .L1
  90         xorl    %r10d, %r10d
  91         movl    $1, %edx
  92         movl    $129, %esi
  93         movl    $202, %eax
  94 #APP
  95 # 885 "libioP.h" 1
  96         syscall
  97
  98 # 0 "" 2
  99 #NO_APP
 100         jmp     .L1
 101 .L15:
 102         testl   $32768, (%rbx)
 103         movq    %rax, %r8
 104         jne     .L13
 105         movq    136(%rbx), %rdi
 106         movl    4(%rdi), %eax
 107         subl    $1, %eax
 108         testl   %eax, %eax
 109         movl    %eax, 4(%rdi)
 110         jne     .L13
 111         movq    $0, 8(%rdi)
 112 #APP
 113 # 885 "libioP.h" 1
 114         movl %fs:24,%edx
 115 # 0 "" 2
 116 #NO_APP
 117         testl   %edx, %edx
 118         jne     .L14
 119         subl    $1, (%rdi)
 120 .L13:
 121         movq    %r8, %rdi
 122 .LEHB1:
 123         call    _Unwind_Resume@PLT
 124 .LEHE1:
 125 .L14:
 126 #APP
 127 # 885 "libioP.h" 1
 128         xchgl %eax, (%rdi)
 129 # 0 "" 2
 130 #NO_APP
 131         subl    $1, %eax
 132         jle     .L13
 133         xorl    %r10d, %r10d
 134         movl    $1, %edx
 135         movl    $129, %esi
 136         movl    $202, %eax
 137 #APP
 138 # 885 "libioP.h" 1
 139         syscall
 140
 141 # 0 "" 2
 142 #NO_APP
 143         jmp     .L13
 144 .LFE68:
 145         .globl  __gcc_personality_v0
 146         .section        .gcc_except_table,"a",@progbits
 147 .LLSDA68:
 148         .byte   0xff
 149         .byte   0xff
 150         .byte   0x1
 151         .uleb128 .LLSDACSE68-.LLSDACSB68
 152 .LLSDACSB68:
 153         .uleb128 .LEHB0-.LFB68
 154         .uleb128 .LEHE0-.LEHB0
 155         .uleb128 .L15-.LFB68
 156         .uleb128 0
 157         .uleb128 .LEHB1-.LFB68
 158         .uleb128 .LEHE1-.LEHB1
 159         .uleb128 0
 160         .uleb128 0
 161 .LLSDACSE68:
 162         .text
 163         .size   rewind, .-rewind
 164         .hidden DW.ref.__gcc_personality_v0
 165         .weak   DW.ref.__gcc_personality_v0
 166         .section        .data.DW.ref.__gcc_personality_v0,"awG",@progbits,DW.ref.__gcc_personality_v0,comdat
 167         .align 8
 168         .type   DW.ref.__gcc_personality_v0, @object
 169         .size   DW.ref.__gcc_personality_v0, 8
 170 DW.ref.__gcc_personality_v0:
 171         .quad   __gcc_personality_v0
 172         .hidden __lll_lock_wait_private
 173         .hidden _IO_seekoff_unlocked