stdio-common/getw.s

   1         .text
   2         .p2align 4,,15
   3         .globl  getw
   4         .type   getw, @function
   5 getw:
   6         subq    $24, %rsp
   7         movq    %rdi, %rcx
   8         movl    $1, %edx
   9         leaq    12(%rsp), %rdi
  10         movl    $4, %esi
  11         call    _IO_fread
  12         cmpq    $1, %rax
  13         jne     .L3
  14         movl    12(%rsp), %eax
  15 .L1:
  16         addq    $24, %rsp
  17         ret
  18         .p2align 4,,10
  19         .p2align 3
  20 .L3:
  21         movl    $-1, %eax
  22         jmp     .L1
  23         .size   getw, .-getw
  24         .hidden _IO_fread