libio/fseek.s

   1         .text
   2         .p2align 4,,15
   3         .globl  fseek
   4         .hidden fseek
   5         .type   fseek, @function
   6 fseek:
   7 .LFB68:
   8         pushq   %r13
   9         pushq   %r12
  10         movl    %edx, %r12d
  11         pushq   %rbp
  12         pushq   %rbx
  13         movq    %rsi, %rbp
  14         movq    %rdi, %rbx
  15         subq    $8, %rsp
  16         movl    (%rdi), %edx
  17         andl    $32768, %edx
  18         jne     .L2
  19         movq    136(%rdi), %rdi
  20         movq    %fs:16, %r13
  21         cmpq    %r13, 8(%rdi)
  22         je      .L3
  23 #APP
  24 # 35 "fseek.c" 1
  25         movl %fs:24,%eax
  26 # 0 "" 2
  27 #NO_APP
  28         testl   %eax, %eax
  29         jne     .L4
  30         movl    $1, %edx
  31 #APP
  32 # 47 "../sysdeps/unix/sysv/linux/x86/lowlevellock.h" 1
  33         cmpxchgl %edx, (%rdi)
  34 # 0 "" 2
  35 #NO_APP
  36 .L5:
  37         movq    136(%rbx), %rdi
  38         movq    %r13, 8(%rdi)
  39 .L3:
  40         addl    $1, 4(%rdi)
  41 .L2:
  42         movl    $3, %ecx
  43         movl    %r12d, %edx
  44         movq    %rbp, %rsi
  45         movq    %rbx, %rdi
  46 .LEHB0:
  47         call    _IO_seekoff_unlocked
  48         xorl    %r8d, %r8d
  49         cmpq    $-1, %rax
  50         sete    %r8b
  51         negl    %r8d
  52         testl   $32768, (%rbx)
  53         jne     .L1
  54         movq    136(%rbx), %rdi
  55         movl    4(%rdi), %eax
  56         subl    $1, %eax
  57         testl   %eax, %eax
  58         movl    %eax, 4(%rdi)
  59         jne     .L1
  60         movq    $0, 8(%rdi)
  61 #APP
  62 # 885 "libioP.h" 1
  63         movl %fs:24,%edx
  64 # 0 "" 2
  65 #NO_APP
  66         testl   %edx, %edx
  67         jne     .L11
  68         subl    $1, (%rdi)
  69 .L1:
  70         addq    $8, %rsp
  71         movl    %r8d, %eax
  72         popq    %rbx
  73         popq    %rbp
  74         popq    %r12
  75         popq    %r13
  76         ret
  77         .p2align 4,,10
  78         .p2align 3
  79 .L4:
  80         movl    $1, %ecx
  81         movl    %edx, %eax
  82         lock cmpxchgl   %ecx, (%rdi)
  83         je      .L5
  84         call    __lll_lock_wait_private
  85 .LEHE0:
  86         jmp     .L5
  87         .p2align 4,,10
  88         .p2align 3
  89 .L11:
  90 #APP
  91 # 885 "libioP.h" 1
  92         xchgl %eax, (%rdi)
  93 # 0 "" 2
  94 #NO_APP
  95         cmpl    $1, %eax
  96         jle     .L1
  97         xorl    %r10d, %r10d
  98         movl    $1, %edx
  99         movl    $129, %esi
 100         movl    $202, %eax
 101 #APP
 102 # 885 "libioP.h" 1
 103         syscall
 104
 105 # 0 "" 2
 106 #NO_APP
 107         jmp     .L1
 108 .L15:
 109         testl   $32768, (%rbx)
 110         movq    %rax, %r8
 111         jne     .L13
 112         movq    136(%rbx), %rdi
 113         movl    4(%rdi), %eax
 114         subl    $1, %eax
 115         testl   %eax, %eax
 116         movl    %eax, 4(%rdi)
 117         jne     .L13
 118         movq    $0, 8(%rdi)
 119 #APP
 120 # 885 "libioP.h" 1
 121         movl %fs:24,%edx
 122 # 0 "" 2
 123 #NO_APP
 124         testl   %edx, %edx
 125         jne     .L14
 126         subl    $1, (%rdi)
 127 .L13:
 128         movq    %r8, %rdi
 129 .LEHB1:
 130         call    _Unwind_Resume@PLT
 131 .LEHE1:
 132 .L14:
 133 #APP
 134 # 885 "libioP.h" 1
 135         xchgl %eax, (%rdi)
 136 # 0 "" 2
 137 #NO_APP
 138         subl    $1, %eax
 139         jle     .L13
 140         xorl    %r10d, %r10d
 141         movl    $1, %edx
 142         movl    $129, %esi
 143         movl    $202, %eax
 144 #APP
 145 # 885 "libioP.h" 1
 146         syscall
 147
 148 # 0 "" 2
 149 #NO_APP
 150         jmp     .L13
 151 .LFE68:
 152         .globl  __gcc_personality_v0
 153         .section        .gcc_except_table,"a",@progbits
 154 .LLSDA68:
 155         .byte   0xff
 156         .byte   0xff
 157         .byte   0x1
 158         .uleb128 .LLSDACSE68-.LLSDACSB68
 159 .LLSDACSB68:
 160         .uleb128 .LEHB0-.LFB68
 161         .uleb128 .LEHE0-.LEHB0
 162         .uleb128 .L15-.LFB68
 163         .uleb128 0
 164         .uleb128 .LEHB1-.LFB68
 165         .uleb128 .LEHE1-.LEHB1
 166         .uleb128 0
 167         .uleb128 0
 168 .LLSDACSE68:
 169         .text
 170         .size   fseek, .-fseek
 171         .hidden DW.ref.__gcc_personality_v0
 172         .weak   DW.ref.__gcc_personality_v0
 173         .section        .data.DW.ref.__gcc_personality_v0,"awG",@progbits,DW.ref.__gcc_personality_v0,comdat
 174         .align 8
 175         .type   DW.ref.__gcc_personality_v0, @object
 176         .size   DW.ref.__gcc_personality_v0, 8
 177 DW.ref.__gcc_personality_v0:
 178         .quad   __gcc_personality_v0
 179         .hidden __lll_lock_wait_private
 180         .hidden _IO_seekoff_unlocked