nptl/pthread_rwlock_rdlock.shared.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  __GI___pthread_rwlock_rdlock
   9         .hidden __GI___pthread_rwlock_rdlock
  10         .type   __GI___pthread_rwlock_rdlock, @function
  11 __GI___pthread_rwlock_rdlock:
  12         movl    24(%rdi), %edx
  13 #APP
  14 # 298 "pthread_rwlock_common.c" 1
  15         movl %fs:720,%eax
  16 # 0 "" 2
  17 #NO_APP
  18         cmpl    %eax, %edx
  19         je      .L29
  20         pushq   %r12
  21         pushq   %rbp
  22         pushq   %rbx
  23         cmpl    $2, 48(%rdi)
  24         movq    %rdi, %rbx
  25         je      .L3
  26 .L10:
  27         movl    $8, %eax
  28         lock xaddl      %eax, (%rbx)
  29         addl    $8, %eax
  30 .L4:
  31         testl   %eax, %eax
  32         js      .L12
  33         testb   $1, %al
  34         jne     .L13
  35 .L32:
  36         xorl    %edx, %edx
  37 .L1:
  38         popq    %rbx
  39         movl    %edx, %eax
  40         popq    %rbp
  41         popq    %r12
  42         ret
  43         .p2align 4,,10
  44         .p2align 3
  45 .L3:
  46         movl    (%rdi), %esi
  47         movl    $128, %ebp
  48 .L7:
  49         movl    %esi, %eax
  50         andl    $3, %eax
  51         cmpl    $2, %eax
  52         jne     .L10
  53         movl    %esi, %eax
  54         shrl    $3, %eax
  55         testl   %eax, %eax
  56         je      .L10
  57         movl    %esi, %edx
  58         movl    %esi, %eax
  59         orl     $4, %edx
  60         lock cmpxchgl   %edx, (%rbx)
  61         movl    %eax, %esi
  62         je      .L6
  63         jmp     .L7
  64         .p2align 4,,10
  65         .p2align 3
  66 .L56:
  67         cmpl    $75, %eax
  68         je      .L1
  69 .L6:
  70         movl    (%rbx), %esi
  71         testb   $4, %sil
  72         je      .L7
  73         movl    28(%rbx), %r8d
  74         movq    %rbx, %rdi
  75         testl   %r8d, %r8d
  76         cmovne  %ebp, %r8d
  77         xorl    %edx, %edx
  78         xorl    %ecx, %ecx
  79         call    __GI___futex_abstimed_wait64
  80         cmpl    $110, %eax
  81         movl    %eax, %edx
  82         jne     .L56
  83         popq    %rbx
  84         movl    %edx, %eax
  85         popq    %rbp
  86         popq    %r12
  87         ret
  88         .p2align 4,,10
  89         .p2align 3
  90 .L13:
  91         movl    %eax, %edx
  92         andl    $3, %edx
  93         cmpl    $1, %edx
  94         jne     .L57
  95         movl    %eax, %edx
  96         xorl    $1, %edx
  97         lock cmpxchgl   %edx, (%rbx)
  98         jne     .L13
  99         leaq    8(%rbx), %rdi
 100         xorl    %eax, %eax
 101         xchgl   (%rdi), %eax
 102         testb   $2, %al
 103         je      .L32
 104         cmpl    $1, 28(%rbx)
 105         movl    $2147483647, %edx
 106         movl    $202, %eax
 107         sbbl    %esi, %esi
 108         xorl    %r10d, %r10d
 109         andl    $128, %esi
 110         addl    $1, %esi
 111 #APP
 112 # 209 "../sysdeps/nptl/futex-internal.h" 1
 113         syscall
 114
 115 # 0 "" 2
 116 #NO_APP
 117         cmpq    $-4096, %rax
 118         jbe     .L32
 119         cmpl    $-22, %eax
 120         je      .L32
 121         cmpl    $-14, %eax
 122         je      .L32
 123         leaq    .LC0(%rip), %rdi
 124         call    __libc_fatal@PLT
 125         .p2align 4,,10
 126         .p2align 3
 127 .L29:
 128         movl    $35, %edx
 129         movl    %edx, %eax
 130         ret
 131         .p2align 4,,10
 132         .p2align 3
 133 .L12:
 134         leal    -8(%rax), %edx
 135         lock cmpxchgl   %edx, (%rbx)
 136         jne     .L4
 137         movl    $11, %edx
 138         jmp     .L1
 139 .L57:
 140         leaq    8(%rbx), %rbp
 141         xorl    %r12d, %r12d
 142 .L18:
 143         movl    0(%rbp), %eax
 144         movl    %eax, %edx
 145         orl     $2, %edx
 146         cmpl    $3, %edx
 147         je      .L27
 148         testb   %r12b, %r12b
 149         jne     .L32
 150         movl    (%rbx), %eax
 151         testb   $1, %al
 152         jne     .L18
 153         movl    0(%rbp), %eax
 154         movl    %eax, %edx
 155         orl     $2, %edx
 156         cmpl    $3, %edx
 157         jne     .L32
 158         movl    $1, %r12d
 159 .L27:
 160         movl    28(%rbx), %r8d
 161         movl    $128, %edx
 162         testl   %r8d, %r8d
 163         cmovne  %edx, %r8d
 164         testb   $2, %al
 165         jne     .L23
 166         movl    $3, %edx
 167         lock cmpxchgl   %edx, 0(%rbp)
 168         jne     .L18
 169 .L23:
 170         xorl    %edx, %edx
 171         xorl    %ecx, %ecx
 172         movl    $3, %esi
 173         movq    %rbp, %rdi
 174         call    __GI___futex_abstimed_wait64
 175         cmpl    $110, %eax
 176         movl    %eax, %edx
 177         je      .L21
 178         cmpl    $75, %eax
 179         jne     .L18
 180 .L21:
 181         movl    (%rbx), %eax
 182 .L24:
 183         testb   $1, %al
 184         je      .L26
 185         leal    -8(%rax), %ecx
 186         lock cmpxchgl   %ecx, (%rbx)
 187         je      .L1
 188         jmp     .L24
 189         .p2align 4,,10
 190         .p2align 3
 191 .L26:
 192         movl    0(%rbp), %eax
 193         orl     $2, %eax
 194         cmpl    $3, %eax
 195         je      .L26
 196         jmp     .L32
 197         .size   __GI___pthread_rwlock_rdlock, .-__GI___pthread_rwlock_rdlock
 198         .weak   pthread_rwlock_rdlock
 199         .set    pthread_rwlock_rdlock,__GI___pthread_rwlock_rdlock
 200         .globl  __pthread_rwlock_rdlock
 201         .set    __pthread_rwlock_rdlock,__GI___pthread_rwlock_rdlock