nptl/pthread_rwlock_tryrdlock.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_tryrdlock
   9         .type   __pthread_rwlock_tryrdlock, @function
  10 __pthread_rwlock_tryrdlock:
  11         movl    (%rdi), %eax
  12 .L6:
  13         movl    %eax, %edx
  14         andl    $2, %edx
  15         testb   $1, %al
  16         jne     .L2
  17         testl   %edx, %edx
  18         je      .L3
  19         cmpl    $2, 48(%rdi)
  20         je      .L12
  21 .L3:
  22         leal    8(%rax), %edx
  23         jmp     .L5
  24         .p2align 4,,10
  25         .p2align 3
  26 .L2:
  27         testl   %edx, %edx
  28         jne     .L12
  29         leal    8(%rax), %edx
  30         xorl    $1, %edx
  31 .L5:
  32         testl   %edx, %edx
  33         js      .L13
  34         lock cmpxchgl   %edx, (%rdi)
  35         jne     .L6
  36         testb   $1, %al
  37         jne     .L7
  38 .L15:
  39         xorl    %eax, %eax
  40         ret
  41         .p2align 4,,10
  42         .p2align 3
  43 .L7:
  44         leaq    8(%rdi), %rcx
  45         xorl    %eax, %eax
  46         xchgl   (%rcx), %eax
  47         testb   $2, %al
  48         je      .L15
  49         cmpl    $1, 28(%rdi)
  50         movl    $2147483647, %edx
  51         movq    %rcx, %rdi
  52         movl    $202, %eax
  53         sbbl    %esi, %esi
  54         xorl    %r10d, %r10d
  55         andl    $128, %esi
  56         addl    $1, %esi
  57 #APP
  58 # 209 "../sysdeps/nptl/futex-internal.h" 1
  59         syscall
  60
  61 # 0 "" 2
  62 #NO_APP
  63         cmpq    $-4096, %rax
  64         jbe     .L15
  65         cmpl    $-22, %eax
  66         je      .L15
  67         cmpl    $-14, %eax
  68         je      .L15
  69         leaq    .LC0(%rip), %rdi
  70         subq    $8, %rsp
  71         call    __libc_fatal@PLT
  72         .p2align 4,,10
  73         .p2align 3
  74 .L12:
  75         movl    $16, %eax
  76         ret
  77         .p2align 4,,10
  78         .p2align 3
  79 .L13:
  80         movl    $11, %eax
  81         ret
  82         .size   __pthread_rwlock_tryrdlock, .-__pthread_rwlock_tryrdlock
  83         .globl  pthread_rwlock_tryrdlock
  84         .set    pthread_rwlock_tryrdlock,__pthread_rwlock_tryrdlock