time/clock.s

   1         .text
   2         .p2align 4,,15
   3         .globl  clock
   4         .type   clock, @function
   5 clock:
   6         subq    $24, %rsp
   7         movl    $2, %edi
   8         movq    %rsp, %rsi
   9         call    __clock_gettime
  10         testl   %eax, %eax
  11         movq    $-1, %rdx
  12         jne     .L1
  13         movq    8(%rsp), %rsi
  14         movabsq $2361183241434822607, %rdx
  15         imulq   $1000000, (%rsp), %rcx
  16         movq    %rsi, %rax
  17         sarq    $63, %rsi
  18         imulq   %rdx
  19         sarq    $7, %rdx
  20         subq    %rsi, %rdx
  21         addq    %rcx, %rdx
  22 .L1:
  23         movq    %rdx, %rax
  24         addq    $24, %rsp
  25         ret
  26         .size   clock, .-clock
  27         .hidden __clock_gettime