nptl/rtld-libc-cancellation.shared.s

   1         .text
   2         .p2align 4,,15
   3         .globl  __libc_enable_asynccancel
   4         .hidden __libc_enable_asynccancel
   5         .type   __libc_enable_asynccancel, @function
   6 __libc_enable_asynccancel:
   7         movq    %fs:16, %rsi
   8 #APP
   9 # 35 "../nptl/cancellation.c" 1
  10         movl %fs:776,%edx
  11 # 0 "" 2
  12 #NO_APP
  13 .L3:
  14         movl    %edx, %ecx
  15         orl     $2, %ecx
  16         cmpl    %ecx, %edx
  17         je      .L1
  18         movl    %edx, %eax
  19         lock cmpxchgl   %ecx, 776(%rsi)
  20         cmpl    %eax, %edx
  21         jne     .L5
  22         andl    $-69, %ecx
  23         cmpl    $10, %ecx
  24         je      .L10
  25 .L1:
  26         movl    %edx, %eax
  27         ret
  28         .p2align 4,,10
  29         .p2align 3
  30 .L5:
  31         movl    %eax, %edx
  32         jmp     .L3
  33 .L10:
  34         subq    $8, %rsp
  35 #APP
  36 # 50 "../nptl/cancellation.c" 1
  37         movq $-1,%fs:1584
  38 # 0 "" 2
  39 #NO_APP
  40         movq    %fs:16, %rax
  41 #APP
  42 # 304 "pthreadP.h" 1
  43         lock;orl $16, 776(%rax)
  44 # 0 "" 2
  45 # 307 "pthreadP.h" 1
  46         movq %fs:768,%rdi
  47 # 0 "" 2
  48 #NO_APP
  49         call    __pthread_unwind@PLT
  50         .size   __libc_enable_asynccancel, .-__libc_enable_asynccancel
  51         .section        .rodata.str1.8,"aMS",@progbits,1
  52         .align 8
  53 .LC0:
  54         .string "The futex facility returned an unexpected error code.\n"
  55         .text
  56         .p2align 4,,15
  57         .globl  __libc_disable_asynccancel
  58         .hidden __libc_disable_asynccancel
  59         .type   __libc_disable_asynccancel, @function
  60 __libc_disable_asynccancel:
  61         andl    $2, %edi
  62         jne     .L21
  63 #APP
  64 # 78 "../nptl/cancellation.c" 1
  65         movl %fs:776,%ecx
  66 # 0 "" 2
  67 #NO_APP
  68         movq    %fs:16, %rax
  69         leaq    776(%rax), %r8
  70 .L13:
  71         movl    %ecx, %edx
  72         movl    %ecx, %eax
  73         andl    $-3, %edx
  74         lock cmpxchgl   %edx, (%r8)
  75         cmpl    %eax, %ecx
  76         jne     .L17
  77         andl    $12, %ecx
  78         cmpl    $4, %ecx
  79         je      .L24
  80 .L21:
  81         rep ret
  82         .p2align 4,,10
  83         .p2align 3
  84 .L24:
  85         pushq   %rbx
  86         movl    $202, %r9d
  87         movl    $1, %ebx
  88 .L16:
  89         xorl    %r10d, %r10d
  90         movl    $128, %esi
  91         movq    %r8, %rdi
  92         movl    %r9d, %eax
  93 #APP
  94 # 146 "../sysdeps/nptl/futex-internal.h" 1
  95         syscall
  96
  97 # 0 "" 2
  98 #NO_APP
  99         cmpq    $-4096, %rax
 100         ja      .L25
 101 .L14:
 102 #APP
 103 # 102 "../nptl/cancellation.c" 1
 104         movl %fs:776,%edx
 105 # 0 "" 2
 106 #NO_APP
 107         movl    %edx, %eax
 108         andl    $12, %eax
 109         cmpl    $4, %eax
 110         je      .L16
 111         popq    %rbx
 112         ret
 113         .p2align 4,,10
 114         .p2align 3
 115 .L17:
 116         movl    %eax, %ecx
 117         jmp     .L13
 118 .L25:
 119         leal    11(%rax), %ecx
 120         cmpl    $11, %ecx
 121         ja      .L15
 122         movq    %rbx, %rax
 123         salq    %cl, %rax
 124         testl   $2177, %eax
 125         jne     .L14
 126 .L15:
 127         leaq    .LC0(%rip), %rdi
 128         call    __GI___libc_fatal
 129         .size   __libc_disable_asynccancel, .-__libc_disable_asynccancel