return
	}

	ret = timer_settime(timerid, 0, spec, nil)
	if ret != 0 {
		print("runtime: failed to configure profiling timer; timer_settime(", timerid,
			", 0, {interval: {",
			spec.it_interval.tv_sec, "s + ", spec.it_interval.tv_nsec, "ns} value: {",
			spec.it_value.tv_sec, "s + ", spec.it_value.tv_nsec, "ns}}, nil) errno=", -ret, "\n")
		throw("timer_settime")
	}

	mp.profileTimer = timerid

	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func TimerfdSettime(fd int, flags int, newValue *ItimerSpec, oldValue *ItimerSpec) (err error) {
	_, _, e1 := RawSyscall6(SYS_TIMERFD_SETTIME, uintptr(fd), uintptr(flags), uintptr(unsafe.Pointer(newValue)), uintptr(unsafe.Pointer(oldValue)), 0, 0)

//sys	Tee(rfd int, wfd int, len int, flags int) (n int64, err error)
//sysnb	TimerfdCreate(clockid int, flags int) (fd int, err error)
//sysnb	TimerfdGettime(fd int, currValue *ItimerSpec) (err error)
//sysnb	TimerfdSettime(fd int, flags int, newValue *ItimerSpec, oldValue *ItimerSpec) (err error)
//sysnb	Tgkill(tgid int, tid int, sig syscall.Signal) (err error)
//sysnb	Times(tms *Tms) (ticks uintptr, err error)