nptl/pthread_cancel.s

   1         .text
   2 #APP
   3         .globl __pthread_create
   4 #NO_APP
   5         .p2align 4,,15
   6         .globl  __pthread_cancel
   7         .type   __pthread_cancel, @function
   8 __pthread_cancel:
   9         movl    720(%rdi), %eax
  10         testl   %eax, %eax
  11         jle     .L8
  12         leaq    776(%rdi), %rcx
  13 .L3:
  14         movl    776(%rdi), %eax
  15         movl    %eax, %edx
  16         orl     $12, %edx
  17         cmpl    %edx, %eax
  18         je      .L13
  19         movl    %edx, %esi
  20         andl    $-69, %esi
  21         cmpl    $10, %esi
  22         je      .L18
  23 #APP
  24 # 82 "pthread_cancel.c" 1
  25         movl $1,%fs:24
  26 # 0 "" 2
  27 #NO_APP
  28         movq    __libc_multiple_threads_ptr(%rip), %rsi
  29         movl    $1, (%rsi)
  30         movl    $1, __pthread_multiple_threads(%rip)
  31         lock cmpxchgl   %edx, (%rcx)
  32         jne     .L3
  33 .L13:
  34         xorl    %eax, %eax
  35         ret
  36         .p2align 4,,10
  37         .p2align 3
  38 .L18:
  39         movl    %eax, %edx
  40         orl     $4, %edx
  41         lock cmpxchgl   %edx, (%rcx)
  42         jne     .L3
  43         pushq   %rbx
  44         movq    %rdi, %rbx
  45         call    __getpid@PLT
  46         movl    720(%rbx), %esi
  47         movl    %eax, %edi
  48         movl    $32, %edx
  49         movl    $234, %eax
  50 #APP
  51 # 70 "pthread_cancel.c" 1
  52         syscall
  53
  54 # 0 "" 2
  55 #NO_APP
  56         cmpl    $-4096, %eax
  57         jbe     .L7
  58         negl    %eax
  59         popq    %rbx
  60         ret
  61         .p2align 4,,10
  62         .p2align 3
  63 .L7:
  64         xorl    %eax, %eax
  65         popq    %rbx
  66         ret
  67         .p2align 4,,10
  68         .p2align 3
  69 .L8:
  70         movl    $3, %eax
  71         ret
  72         .size   __pthread_cancel, .-__pthread_cancel
  73         .weak   pthread_cancel
  74         .set    pthread_cancel,__pthread_cancel