dirent/telldir.s

   1         .text
   2         .p2align 4,,15
   3         .globl  telldir
   4         .type   telldir, @function
   5 telldir:
   6         pushq   %rbp
   7         pushq   %rbx
   8         movq    %rdi, %rbx
   9         subq    $8, %rsp
  10 #APP
  11 # 28 "../sysdeps/unix/sysv/linux/telldir.c" 1
  12         movl %fs:24,%eax
  13 # 0 "" 2
  14 #NO_APP
  15         testl   %eax, %eax
  16         leaq    4(%rdi), %rbp
  17         jne     .L2
  18         movl    $1, %edx
  19 #APP
  20 # 47 "../sysdeps/unix/sysv/linux/x86/lowlevellock.h" 1
  21         cmpxchgl %edx, 4(%rdi)
  22 # 0 "" 2
  23 #NO_APP
  24 .L3:
  25         movq    32(%rbx), %r8
  26 #APP
  27 # 30 "../sysdeps/unix/sysv/linux/telldir.c" 1
  28         movl %fs:24,%eax
  29 # 0 "" 2
  30 #NO_APP
  31         testl   %eax, %eax
  32         jne     .L4
  33         subl    $1, 4(%rbx)
  34 .L1:
  35         addq    $8, %rsp
  36         movq    %r8, %rax
  37         popq    %rbx
  38         popq    %rbp
  39         ret
  40         .p2align 4,,10
  41         .p2align 3
  42 .L2:
  43         xorl    %eax, %eax
  44         movl    $1, %edx
  45         lock cmpxchgl   %edx, 0(%rbp)
  46         je      .L3
  47         movq    %rbp, %rdi
  48         call    __lll_lock_wait_private
  49         jmp     .L3
  50         .p2align 4,,10
  51         .p2align 3
  52 .L4:
  53         xorl    %eax, %eax
  54 #APP
  55 # 30 "../sysdeps/unix/sysv/linux/telldir.c" 1
  56         xchgl %eax, 4(%rbx)
  57 # 0 "" 2
  58 #NO_APP
  59         cmpl    $1, %eax
  60         jle     .L1
  61         xorl    %r10d, %r10d
  62         movl    $1, %edx
  63         movl    $129, %esi
  64         movq    %rbp, %rdi
  65         movl    $202, %eax
  66 #APP
  67 # 30 "../sysdeps/unix/sysv/linux/telldir.c" 1
  68         syscall
  69
  70 # 0 "" 2
  71 #NO_APP
  72         jmp     .L1
  73         .size   telldir, .-telldir
  74         .hidden __lll_lock_wait_private