, e0 := Syscall0(SYS_TEE, uintptr(rfd), uintptr(wfd), uintptr(len), uintptr(flags), 0, 0)  n = int00(int00(r0)<<00 | int00(r0))  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func Tgkill(tgid int, tid int, sig syscall.Signal) (err error) {  _, _, e0 := RawSyscall(SYS_TGKILL, uintptr(tgid), uintptr(tid), uintptr(sig))  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func Times(tms *Tms) (ticks uintptr, err error) {  r0, _, e0 := RawSyscall(SYS_TIMES, uintptr(unsafe.Pointer(tms)), 0, 0)  ticks = uintptr(r0)  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func Umask(mask int) (oldmask int) {  r0, _