libio/freopen.s

   1         .text
   2         .p2align 4,,15
   3         .globl  freopen
   4         .type   freopen, @function
   5 freopen:
   6 .LFB68:
   7         pushq   %r13
   8         pushq   %r12
   9         movq    %rsi, %r12
  10         pushq   %rbp
  11         pushq   %rbx
  12         movq    %rdx, %rbx
  13         movq    %rdi, %rbp
  14         subq    $40, %rsp
  15         movl    (%rdx), %edx
  16         andl    $32768, %edx
  17         jne     .L2
  18         movq    136(%rbx), %rdi
  19         movq    %fs:16, %r13
  20         cmpq    %r13, 8(%rdi)
  21         je      .L3
  22 #APP
  23 # 44 "freopen.c" 1
  24         movl %fs:24,%eax
  25 # 0 "" 2
  26 #NO_APP
  27         testl   %eax, %eax
  28         jne     .L4
  29         movl    $1, %edx
  30 #APP
  31 # 47 "../sysdeps/unix/sysv/linux/x86/lowlevellock.h" 1
  32         cmpxchgl %edx, (%rdi)
  33 # 0 "" 2
  34 #NO_APP
  35 .L5:
  36         movq    136(%rbx), %rdi
  37         movq    %r13, 8(%rdi)
  38 .L3:
  39         addl    $1, 4(%rdi)
  40 .L2:
  41         movq    216(%rbx), %r13
  42         movq    __start___libc_IO_vtables@GOTPCREL(%rip), %rdx
  43         movq    __stop___libc_IO_vtables@GOTPCREL(%rip), %rax
  44         movq    %r13, %rcx
  45         subq    %rdx, %rax
  46         subq    %rdx, %rcx
  47         cmpq    %rcx, %rax
  48         jbe     .L8
  49 .L10:
  50         movq    %rbx, %rdi
  51 .LEHB0:
  52         call    *96(%r13)
  53         movl    (%rbx), %eax
  54         testb   $32, %ah
  55         je      .L27
  56         testq   %rbp, %rbp
  57         movl    112(%rbx), %r13d
  58         je      .L40
  59 .L12:
  60         orl     $32, 116(%rbx)
  61         movq    %rbx, %rdi
  62         call    _IO_file_close_it
  63         leaq    _IO_file_jumps(%rip), %rax
  64         movq    %rax, 216(%rbx)
  65         movq    160(%rbx), %rax
  66         testq   %rax, %rax
  67         je      .L13
  68         leaq    _IO_wfile_jumps(%rip), %rsi
  69         movq    %rsi, 224(%rax)
  70 .L13:
  71         movl    $1, %ecx
  72         movq    %r12, %rdx
  73         movq    %rbp, %rsi
  74         movq    %rbx, %rdi
  75         call    _IO_file_fopen
  76         testq   %rax, %rax
  77         je      .L14
  78         movq    %rax, %rdi
  79         call    __fopen_maybe_mmap
  80         andl    $-33, 116(%rbx)
  81         testq   %rax, %rax
  82         movq    %rax, %rbp
  83         je      .L15
  84         cmpl    $-1, %r13d
  85         movl    $0, 192(%rax)
  86         je      .L37
  87         movl    112(%rax), %edi
  88         cmpl    %r13d, %edi
  89         je      .L37
  90         movl    116(%rax), %edx
  91         movl    %r13d, %esi
  92         sall    $13, %edx
  93         andl    $524288, %edx
  94         call    __dup3
  95         cmpl    $-1, %eax
  96         je      .L41
  97         movl    112(%rbp), %edi
  98         call    __close
  99         movl    %r13d, 112(%rbp)
 100 .L37:
 101         movl    (%rbx), %eax
 102         jmp     .L11
 103         .p2align 4,,10
 104         .p2align 3
 105 .L14:
 106         andl    $-33, 116(%rbx)
 107 .L15:
 108         cmpl    $-1, %r13d
 109         je      .L38
 110         movl    %r13d, %edi
 111         call    __close
 112 .L38:
 113         movl    (%rbx), %eax
 114         xorl    %ebp, %ebp
 115 .L11:
 116         testb   $-128, %ah
 117         jne     .L1
 118         movq    136(%rbx), %rdi
 119         movl    4(%rdi), %eax
 120         subl    $1, %eax
 121         testl   %eax, %eax
 122         movl    %eax, 4(%rdi)
 123         jne     .L1
 124         movq    $0, 8(%rdi)
 125 #APP
 126 # 885 "../libio/libioP.h" 1
 127         movl %fs:24,%edx
 128 # 0 "" 2
 129 #NO_APP
 130         testl   %edx, %edx
 131         jne     .L23
 132         subl    $1, (%rdi)
 133 .L1:
 134         addq    $40, %rsp
 135         movq    %rbp, %rax
 136         popq    %rbx
 137         popq    %rbp
 138         popq    %r12
 139         popq    %r13
 140         ret
 141         .p2align 4,,10
 142         .p2align 3
 143 .L40:
 144         movq    %rsp, %rsi
 145         movl    %r13d, %edi
 146         call    __fd_to_filename
 147         movq    %rax, %rbp
 148         jmp     .L12
 149         .p2align 4,,10
 150         .p2align 3
 151 .L41:
 152         movq    %rbp, %rdi
 153         call    _IO_file_close_it
 154         jmp     .L38
 155         .p2align 4,,10
 156         .p2align 3
 157 .L8:
 158         call    _IO_vtable_check
 159         jmp     .L10
 160         .p2align 4,,10
 161         .p2align 3
 162 .L27:
 163         xorl    %ebp, %ebp
 164         jmp     .L11
 165         .p2align 4,,10
 166         .p2align 3
 167 .L4:
 168         movl    $1, %ecx
 169         movl    %edx, %eax
 170         lock cmpxchgl   %ecx, (%rdi)
 171         je      .L5
 172         call    __lll_lock_wait_private
 173 .LEHE0:
 174         jmp     .L5
 175         .p2align 4,,10
 176         .p2align 3
 177 .L23:
 178 #APP
 179 # 885 "../libio/libioP.h" 1
 180         xchgl %eax, (%rdi)
 181 # 0 "" 2
 182 #NO_APP
 183         cmpl    $1, %eax
 184         jle     .L1
 185         xorl    %r10d, %r10d
 186         movl    $1, %edx
 187         movl    $129, %esi
 188         movl    $202, %eax
 189 #APP
 190 # 885 "../libio/libioP.h" 1
 191         syscall
 192
 193 # 0 "" 2
 194 #NO_APP
 195         jmp     .L1
 196 .L28:
 197         testl   $32768, (%rbx)
 198         movq    %rax, %r8
 199         jne     .L25
 200         movq    136(%rbx), %rdi
 201         movl    4(%rdi), %eax
 202         subl    $1, %eax
 203         testl   %eax, %eax
 204         movl    %eax, 4(%rdi)
 205         jne     .L25
 206         movq    $0, 8(%rdi)
 207 #APP
 208 # 885 "../libio/libioP.h" 1
 209         movl %fs:24,%edx
 210 # 0 "" 2
 211 #NO_APP
 212         testl   %edx, %edx
 213         jne     .L26
 214         subl    $1, (%rdi)
 215 .L25:
 216         movq    %r8, %rdi
 217 .LEHB1:
 218         call    _Unwind_Resume@PLT
 219 .LEHE1:
 220 .L26:
 221 #APP
 222 # 885 "../libio/libioP.h" 1
 223         xchgl %eax, (%rdi)
 224 # 0 "" 2
 225 #NO_APP
 226         subl    $1, %eax
 227         jle     .L25
 228         xorl    %r10d, %r10d
 229         movl    $1, %edx
 230         movl    $129, %esi
 231         movl    $202, %eax
 232 #APP
 233 # 885 "../libio/libioP.h" 1
 234         syscall
 235
 236 # 0 "" 2
 237 #NO_APP
 238         jmp     .L25
 239 .LFE68:
 240         .globl  __gcc_personality_v0
 241         .section        .gcc_except_table,"a",@progbits
 242 .LLSDA68:
 243         .byte   0xff
 244         .byte   0xff
 245         .byte   0x1
 246         .uleb128 .LLSDACSE68-.LLSDACSB68
 247 .LLSDACSB68:
 248         .uleb128 .LEHB0-.LFB68
 249         .uleb128 .LEHE0-.LEHB0
 250         .uleb128 .L28-.LFB68
 251         .uleb128 0
 252         .uleb128 .LEHB1-.LFB68
 253         .uleb128 .LEHE1-.LEHB1
 254         .uleb128 0
 255         .uleb128 0
 256 .LLSDACSE68:
 257         .text
 258         .size   freopen, .-freopen
 259         .weak   __stop___libc_IO_vtables
 260         .weak   __start___libc_IO_vtables
 261         .hidden DW.ref.__gcc_personality_v0
 262         .weak   DW.ref.__gcc_personality_v0
 263         .section        .data.DW.ref.__gcc_personality_v0,"awG",@progbits,DW.ref.__gcc_personality_v0,comdat
 264         .align 8
 265         .type   DW.ref.__gcc_personality_v0, @object
 266         .size   DW.ref.__gcc_personality_v0, 8
 267 DW.ref.__gcc_personality_v0:
 268         .quad   __gcc_personality_v0
 269         .hidden __lll_lock_wait_private
 270         .hidden _IO_vtable_check
 271         .hidden __fd_to_filename
 272         .hidden __close
 273         .hidden __dup3
 274         .hidden __fopen_maybe_mmap
 275         .hidden _IO_file_fopen
 276         .hidden _IO_wfile_jumps
 277         .hidden _IO_file_jumps
 278         .hidden _IO_file_close_it