libio/getchar.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  getchar
   9         .type   getchar, @function
  10 getchar:
  11 .LFB68:
  12         pushq   %r12
  13         pushq   %rbp
  14         movq    stdin@GOTPCREL(%rip), %rbp
  15         pushq   %rbx
  16         movq    0(%rbp), %rbx
  17         testb   $-128, 116(%rbx)
  18         jne     .L2
  19         movq    8(%rbx), %rax
  20         cmpq    16(%rbx), %rax
  21         jnb     .L22
  22         leaq    1(%rax), %rdx
  23         movq    %rdx, 8(%rbx)
  24         movzbl  (%rax), %r8d
  25 .L1:
  26         popq    %rbx
  27         movl    %r8d, %eax
  28         popq    %rbp
  29         popq    %r12
  30         ret
  31         .p2align 4,,10
  32         .p2align 3
  33 .L2:
  34         movl    (%rbx), %edx
  35         andl    $32768, %edx
  36         je      .L23
  37         movq    %rbx, %rdi
  38 .L5:
  39         movq    8(%rdi), %rax
  40         cmpq    16(%rdi), %rax
  41         jnb     .L24
  42         leaq    1(%rax), %rdx
  43         movq    %rdx, 8(%rdi)
  44         movzbl  (%rax), %r8d
  45 .L12:
  46         testl   $32768, (%rbx)
  47         jne     .L1
  48         movq    136(%rbx), %rdi
  49         movl    4(%rdi), %eax
  50         subl    $1, %eax
  51         testl   %eax, %eax
  52         movl    %eax, 4(%rdi)
  53         jne     .L1
  54         movq    $0, 8(%rdi)
  55 #APP
  56 # 885 "libioP.h" 1
  57         movl %fs:24,%edx
  58 # 0 "" 2
  59 #NO_APP
  60         testl   %edx, %edx
  61         jne     .L13
  62         subl    $1, (%rdi)
  63         movl    %r8d, %eax
  64         popq    %rbx
  65         popq    %rbp
  66         popq    %r12
  67         ret
  68         .p2align 4,,10
  69         .p2align 3
  70 .L23:
  71         movq    136(%rbx), %rcx
  72         movq    %fs:16, %r12
  73         cmpq    %r12, 8(%rcx)
  74         je      .L18
  75 #APP
  76 # 38 "getchar.c" 1
  77         movl %fs:24,%eax
  78 # 0 "" 2
  79 #NO_APP
  80         testl   %eax, %eax
  81         jne     .L7
  82         movl    $1, %edx
  83 #APP
  84 # 47 "../sysdeps/unix/sysv/linux/x86/lowlevellock.h" 1
  85         cmpxchgl %edx, (%rcx)
  86 # 0 "" 2
  87 #NO_APP
  88 .L8:
  89         movq    136(%rbx), %rcx
  90         movq    0(%rbp), %rdi
  91         movq    %r12, 8(%rcx)
  92 .L6:
  93         addl    $1, 4(%rcx)
  94         jmp     .L5
  95         .p2align 4,,10
  96         .p2align 3
  97 .L18:
  98         movq    %rbx, %rdi
  99         jmp     .L6
 100         .p2align 4,,10
 101         .p2align 3
 102 .L22:
 103         movq    %rbx, %rdi
 104         popq    %rbx
 105         popq    %rbp
 106         popq    %r12
 107 .LEHB0:
 108         jmp     __GI___uflow
 109 .LEHE0:
 110         .p2align 4,,10
 111         .p2align 3
 112 .L24:
 113 .LEHB1:
 114         call    __GI___uflow
 115         movl    %eax, %r8d
 116         jmp     .L12
 117         .p2align 4,,10
 118         .p2align 3
 119 .L7:
 120         movl    $1, %esi
 121         movl    %edx, %eax
 122         lock cmpxchgl   %esi, (%rcx)
 123         je      .L8
 124         movq    %rcx, %rdi
 125         call    __lll_lock_wait_private
 126 .LEHE1:
 127         jmp     .L8
 128         .p2align 4,,10
 129         .p2align 3
 130 .L13:
 131 #APP
 132 # 885 "libioP.h" 1
 133         xchgl %eax, (%rdi)
 134 # 0 "" 2
 135 #NO_APP
 136         cmpl    $1, %eax
 137         jle     .L1
 138         xorl    %r10d, %r10d
 139         movl    $1, %edx
 140         movl    $129, %esi
 141         movl    $202, %eax
 142 #APP
 143 # 885 "libioP.h" 1
 144         syscall
 145
 146 # 0 "" 2
 147 #NO_APP
 148         jmp     .L1
 149 .L19:
 150         testl   $32768, (%rbx)
 151         movq    %rax, %r8
 152         jne     .L15
 153         movq    136(%rbx), %rdi
 154         movl    4(%rdi), %eax
 155         subl    $1, %eax
 156         testl   %eax, %eax
 157         movl    %eax, 4(%rdi)
 158         jne     .L15
 159         movq    $0, 8(%rdi)
 160 #APP
 161 # 885 "libioP.h" 1
 162         movl %fs:24,%edx
 163 # 0 "" 2
 164 #NO_APP
 165         testl   %edx, %edx
 166         jne     .L16
 167         subl    $1, (%rdi)
 168 .L15:
 169         movq    %r8, %rdi
 170 .LEHB2:
 171         call    _Unwind_Resume@PLT
 172 .LEHE2:
 173 .L16:
 174 #APP
 175 # 885 "libioP.h" 1
 176         xchgl %eax, (%rdi)
 177 # 0 "" 2
 178 #NO_APP
 179         subl    $1, %eax
 180         jle     .L15
 181         xorl    %r10d, %r10d
 182         movl    $1, %edx
 183         movl    $129, %esi
 184         movl    $202, %eax
 185 #APP
 186 # 885 "libioP.h" 1
 187         syscall
 188
 189 # 0 "" 2
 190 #NO_APP
 191         jmp     .L15
 192 .LFE68:
 193         .globl  __gcc_personality_v0
 194         .section        .gcc_except_table,"a",@progbits
 195 .LLSDA68:
 196         .byte   0xff
 197         .byte   0xff
 198         .byte   0x1
 199         .uleb128 .LLSDACSE68-.LLSDACSB68
 200 .LLSDACSB68:
 201         .uleb128 .LEHB0-.LFB68
 202         .uleb128 .LEHE0-.LEHB0
 203         .uleb128 0
 204         .uleb128 0
 205         .uleb128 .LEHB1-.LFB68
 206         .uleb128 .LEHE1-.LEHB1
 207         .uleb128 .L19-.LFB68
 208         .uleb128 0
 209         .uleb128 .LEHB2-.LFB68
 210         .uleb128 .LEHE2-.LEHB2
 211         .uleb128 0
 212         .uleb128 0
 213 .LLSDACSE68:
 214         .text
 215         .size   getchar, .-getchar
 216         .hidden DW.ref.__gcc_personality_v0
 217         .weak   DW.ref.__gcc_personality_v0
 218         .section        .data.DW.ref.__gcc_personality_v0,"awG",@progbits,DW.ref.__gcc_personality_v0,comdat
 219         .align 8
 220         .type   DW.ref.__gcc_personality_v0, @object
 221         .size   DW.ref.__gcc_personality_v0, 8
 222 DW.ref.__gcc_personality_v0:
 223         .quad   __gcc_personality_v0
 224         .hidden __lll_lock_wait_private