stdlib/cxa_thread_atexit_impl.s

   1         .text
   2         .p2align 4,,15
   3         .globl  __cxa_thread_atexit_impl
   4         .type   __cxa_thread_atexit_impl, @function
   5 __cxa_thread_atexit_impl:
   6         pushq   %r13
   7         pushq   %r12
   8         movq    %rsi, %r13
   9         pushq   %rbp
  10         pushq   %rbx
  11         movq    %rdi, %rbp
  12         movl    $32, %esi
  13         movl    $1, %edi
  14         movq    %rdx, %r12
  15         subq    $8, %rsp
  16         call    calloc@PLT
  17 #APP
  18 # 102 "cxa_thread_atexit_impl.c" 1
  19         xor %fs:48, %rbp
  20 rol $2*8+1, %rbp
  21 # 0 "" 2
  22 #NO_APP
  23         cmpq    $0, __pthread_mutex_lock@GOTPCREL(%rip)
  24         movq    %rax, %rbx
  25         movq    %rbp, (%rax)
  26         movq    %r13, 8(%rax)
  27         movq    %fs:tls_dtor_list@tpoff, %rax
  28         movq    %rbx, %fs:tls_dtor_list@tpoff
  29         movq    %rax, 24(%rbx)
  30         je      .L2
  31         leaq    _dl_load_lock(%rip), %rdi
  32         call    __pthread_mutex_lock@PLT
  33 .L2:
  34         testq   %r12, %r12
  35         jne     .L3
  36         movq    %fs:lm_cache@tpoff, %rax
  37 .L4:
  38         lock addq       $1, 1128(%rax)
  39         cmpq    $0, __pthread_mutex_unlock@GOTPCREL(%rip)
  40         je      .L6
  41         leaq    _dl_load_lock(%rip), %rdi
  42         call    __pthread_mutex_unlock@PLT
  43 .L6:
  44         movq    %fs:lm_cache@tpoff, %rax
  45         movq    %rax, 16(%rbx)
  46         addq    $8, %rsp
  47         xorl    %eax, %eax
  48         popq    %rbx
  49         popq    %rbp
  50         popq    %r12
  51         popq    %r13
  52         ret
  53         .p2align 4,,10
  54         .p2align 3
  55 .L3:
  56         movq    %r12, %rdi
  57         call    _dl_find_dso_for_object@PLT
  58         testq   %rax, %rax
  59         cmove   _dl_ns(%rip), %rax
  60         movq    %rax, %fs:lm_cache@tpoff
  61         jmp     .L4
  62         .size   __cxa_thread_atexit_impl, .-__cxa_thread_atexit_impl
  63         .p2align 4,,15
  64         .weak   __call_tls_dtors
  65         .hidden __call_tls_dtors
  66         .type   __call_tls_dtors, @function
  67 __call_tls_dtors:
  68         pushq   %rbx
  69         movq    %fs:tls_dtor_list@tpoff, %rbx
  70         testq   %rbx, %rbx
  71         je      .L15
  72         .p2align 4,,10
  73         .p2align 3
  74 .L17:
  75         movq    24(%rbx), %rdx
  76         movq    (%rbx), %rax
  77         movq    8(%rbx), %rdi
  78 #APP
  79 # 151 "cxa_thread_atexit_impl.c" 1
  80         ror $2*8+1, %rax
  81 xor %fs:48, %rax
  82 # 0 "" 2
  83 #NO_APP
  84         movq    %rdx, %fs:tls_dtor_list@tpoff
  85         call    *%rax
  86         movq    16(%rbx), %rax
  87         lock subq       $1, 1128(%rax)
  88         movq    %rbx, %rdi
  89         call    free@PLT
  90         movq    %fs:tls_dtor_list@tpoff, %rbx
  91         testq   %rbx, %rbx
  92         jne     .L17
  93 .L15:
  94         popq    %rbx
  95         ret
  96         .size   __call_tls_dtors, .-__call_tls_dtors
  97         .section        .tbss,"awT",@nobits
  98         .align 8
  99         .type   lm_cache, @object
 100         .size   lm_cache, 8
 101 lm_cache:
 102         .zero   8
 103         .align 8
 104         .type   tls_dtor_list, @object
 105         .size   tls_dtor_list, 8
 106 tls_dtor_list:
 107         .zero   8
 108         .weak   __pthread_mutex_unlock
 109         .weak   __pthread_mutex_lock