nptl/pthread_rwlock_unlock.s

   1         .text
   2         .section        .rodata.str1.8,"aMS",@progbits,1
   3         .align 8
   4 .LC0:
   5         .string "The futex facility returned an unexpected error code.\n"
   6         .text
   7         .p2align 4,,15
   8         .globl  __pthread_rwlock_unlock
   9         .type   __pthread_rwlock_unlock, @function
  10 __pthread_rwlock_unlock:
  11         pushq   %rbp
  12         pushq   %rbx
  13         movq    %rdi, %r8
  14         subq    $8, %rsp
  15         movl    24(%rdi), %edx
  16 #APP
  17 # 40 "pthread_rwlock_unlock.c" 1
  18         movl %fs:720,%eax
  19 # 0 "" 2
  20 #NO_APP
  21         cmpl    %eax, %edx
  22         je      .L58
  23         movl    28(%rdi), %ebx
  24         movl    $128, %eax
  25         testl   %ebx, %ebx
  26         cmovne  %eax, %ebx
  27         movl    (%rdi), %eax
  28 .L18:
  29         leal    -8(%rax), %r9d
  30         movl    %r9d, %edx
  31         shrl    $3, %edx
  32         testl   %edx, %edx
  33         je      .L59
  34 .L16:
  35         lock cmpxchgl   %r9d, (%r8)
  36         movl    %eax, %ebp
  37         jne     .L18
  38         testb   $1, %r9b
  39         jne     .L60
  40 .L20:
  41         xorl    %ebp, %r9d
  42         andl    $4, %r9d
  43         je      .L14
  44         movl    %ebx, %esi
  45         xorl    %r10d, %r10d
  46         movl    $2147483647, %edx
  47         xorb    $-127, %sil
  48         movq    %r8, %rdi
  49         movl    $202, %eax
  50 #APP
  51 # 209 "../sysdeps/nptl/futex-internal.h" 1
  52         syscall
  53
  54 # 0 "" 2
  55 #NO_APP
  56         cmpq    $-4096, %rax
  57         ja      .L55
  58 .L14:
  59         addq    $8, %rsp
  60         xorl    %eax, %eax
  61         popq    %rbx
  62         popq    %rbp
  63         ret
  64         .p2align 4,,10
  65         .p2align 3
  66 .L59:
  67         movl    %r9d, %edx
  68         orl     $1, %edx
  69         testb   $2, %r9b
  70         cmovne  %edx, %r9d
  71         andl    $-5, %r9d
  72         jmp     .L16
  73         .p2align 4,,10
  74         .p2align 3
  75 .L60:
  76         leaq    8(%r8), %rdi
  77         movl    $1, %eax
  78         xchgl   (%rdi), %eax
  79         testb   $2, %al
  80         je      .L20
  81         movl    %ebx, %esi
  82         xorl    %r10d, %r10d
  83         movl    $2147483647, %edx
  84         xorb    $-127, %sil
  85         movl    $202, %eax
  86 #APP
  87 # 209 "../sysdeps/nptl/futex-internal.h" 1
  88         syscall
  89
  90 # 0 "" 2
  91 #NO_APP
  92         cmpq    $-4096, %rax
  93         jbe     .L20
  94         cmpl    $-22, %eax
  95         je      .L20
  96         cmpl    $-14, %eax
  97         je      .L20
  98         jmp     .L10
  99         .p2align 4,,10
 100         .p2align 3
 101 .L58:
 102         movl    28(%rdi), %ebp
 103         movl    $128, %eax
 104         leaq    12(%rdi), %rbx
 105         movl    $0, 24(%rdi)
 106         testl   %ebp, %ebp
 107         cmovne  %eax, %ebp
 108         xorl    %r9d, %r9d
 109         xchgl   (%rbx), %r9d
 110         movl    48(%rdi), %eax
 111         andl    $2, %r9d
 112         testl   %eax, %eax
 113         jne     .L4
 114 .L6:
 115         movl    (%r8), %eax
 116 .L5:
 117         movl    %eax, %edx
 118         movl    %eax, %ecx
 119         shrl    $3, %edx
 120         testl   %edx, %edx
 121         setne   %dl
 122         xorl    $2, %ecx
 123         movzbl  %dl, %edx
 124         xorl    %ecx, %edx
 125         lock cmpxchgl   %edx, (%r8)
 126         jne     .L5
 127         shrl    $3, %eax
 128         testl   %eax, %eax
 129         jne     .L61
 130 .L11:
 131         testl   %r9d, %r9d
 132         je      .L14
 133         movl    %ebp, %esi
 134         xorl    %r10d, %r10d
 135         movl    $1, %edx
 136         xorb    $-127, %sil
 137         movq    %rbx, %rdi
 138         movl    $202, %eax
 139 #APP
 140 # 209 "../sysdeps/nptl/futex-internal.h" 1
 141         syscall
 142
 143 # 0 "" 2
 144 #NO_APP
 145         cmpq    $-4096, %rax
 146         jbe     .L14
 147 .L55:
 148         cmpl    $-22, %eax
 149         je      .L14
 150         cmpl    $-14, %eax
 151         jne     .L10
 152         addq    $8, %rsp
 153         xorl    %eax, %eax
 154         popq    %rbx
 155         popq    %rbp
 156         ret
 157         .p2align 4,,10
 158         .p2align 3
 159 .L4:
 160         movl    4(%rdi), %eax
 161         leaq    4(%rdi), %rdx
 162 .L56:
 163         testl   %eax, %eax
 164         je      .L6
 165         movl    %eax, %ecx
 166         orl     $-2147483648, %ecx
 167         lock cmpxchgl   %ecx, (%rdx)
 168         je      .L11
 169         jmp     .L56
 170         .p2align 4,,10
 171         .p2align 3
 172 .L61:
 173         leaq    8(%r8), %rdi
 174         xorl    %eax, %eax
 175         xchgl   (%rdi), %eax
 176         testb   $2, %al
 177         je      .L11
 178         movl    %ebp, %esi
 179         xorl    %r10d, %r10d
 180         movl    $2147483647, %edx
 181         xorb    $-127, %sil
 182         movl    $202, %eax
 183 #APP
 184 # 209 "../sysdeps/nptl/futex-internal.h" 1
 185         syscall
 186
 187 # 0 "" 2
 188 #NO_APP
 189         cmpq    $-4096, %rax
 190         jbe     .L11
 191         cmpl    $-22, %eax
 192         je      .L11
 193         cmpl    $-14, %eax
 194         je      .L11
 195 .L10:
 196         leaq    .LC0(%rip), %rdi
 197         call    __libc_fatal@PLT
 198         .size   __pthread_rwlock_unlock, .-__pthread_rwlock_unlock
 199         .weak   pthread_rwlock_unlock
 200         .set    pthread_rwlock_unlock,__pthread_rwlock_unlock