posix/vfork.shared.s

   1 .globl __vfork
   2 .type __vfork,@function
   3 .align 1<<4
   4 __vfork:
   5         popq %rdi
   6         movl $58, %eax
   7         syscall
   8         pushq %rdi
   9         cmpl $-4095, %eax
  10         jae 0f
  11         ret
  12 0:
  13         movq __libc_errno@GOTTPOFF(%rip), %rcx
  14         neg %eax
  15         movl %eax, %fs:(%rcx)
  16         or $-1, %rax
  17         ret
  18 .size __vfork,.-__vfork
  19 .globl __GI___vfork
  20 .set __GI___vfork,__vfork
  21 .weak vfork
  22 vfork = __vfork
  23 .globl __libc_vfork
  24 .set __libc_vfork,__vfork