io/poll.s

   1         .text
   2         .p2align 4,,15
   3         .globl  __poll
   4         .hidden __poll
   5         .type   __poll, @function
   6 __poll:
   7 #APP
   8 # 29 "../sysdeps/unix/sysv/linux/poll.c" 1
   9         movl %fs:24,%eax
  10 # 0 "" 2
  11 #NO_APP
  12         testl   %eax, %eax
  13         jne     .L2
  14         movl    $7, %eax
  15 #APP
  16 # 29 "../sysdeps/unix/sysv/linux/poll.c" 1
  17         syscall
  18
  19 # 0 "" 2
  20 #NO_APP
  21         cmpq    $-4096, %rax
  22         ja      .L11
  23         rep ret
  24         .p2align 4,,10
  25         .p2align 3
  26 .L2:
  27         pushq   %r12
  28         pushq   %rbp
  29         movl    %edx, %r12d
  30         pushq   %rbx
  31         movq    %rsi, %rbp
  32         movq    %rdi, %rbx
  33         subq    $16, %rsp
  34         call    __libc_enable_asynccancel
  35         movl    %r12d, %edx
  36         movl    %eax, %r8d
  37         movq    %rbp, %rsi
  38         movq    %rbx, %rdi
  39         movl    $7, %eax
  40 #APP
  41 # 29 "../sysdeps/unix/sysv/linux/poll.c" 1
  42         syscall
  43
  44 # 0 "" 2
  45 #NO_APP
  46         cmpq    $-4096, %rax
  47         ja      .L12
  48 .L6:
  49         movl    %r8d, %edi
  50         movl    %eax, 12(%rsp)
  51         call    __libc_disable_asynccancel
  52         movl    12(%rsp), %eax
  53         addq    $16, %rsp
  54         popq    %rbx
  55         popq    %rbp
  56         popq    %r12
  57         ret
  58         .p2align 4,,10
  59         .p2align 3
  60 .L11:
  61         movq    __libc_errno@gottpoff(%rip), %rdx
  62         negl    %eax
  63         movl    %eax, %fs:(%rdx)
  64         movl    $-1, %eax
  65         ret
  66 .L12:
  67         movq    __libc_errno@gottpoff(%rip), %rdx
  68         negl    %eax
  69         movl    %eax, %fs:(%rdx)
  70         movl    $-1, %eax
  71         jmp     .L6
  72         .size   __poll, .-__poll
  73         .globl  __libc_poll
  74         .set    __libc_poll,__poll
  75         .weak   poll
  76         .set    poll,__poll
  77         .hidden __libc_disable_asynccancel
  78         .hidden __libc_enable_asynccancel