}

//go:nosplit
func validSIGPROF(mp *m, c *sigctxt) bool {
	return true
}

const (
	_CLOCK_REALTIME  = 9
	_CLOCK_MONOTONIC = 10
)

//go:nosplit
func nanotime1() int64 {
	tp := &timespec{}
	if clock_gettime(_CLOCK_REALTIME, tp) != 0 {
		throw("syscall clock_gettime failed")
	}
	return tp.tv_sec*1000000000 + tp.tv_nsec
}

func walltime() (sec int64, nsec int32) {

	// Close this forwarder and release an resources.
	Close()

	// ErrChan returns a channel that returns an error when one is encountered. While Start() may return an initial error,
	// the port-forward connection may be lost at anytime. The ErrChan can be read to determine if/when the port-forwarding terminates.
	// This can return nil if the port forwarding stops gracefully.
	ErrChan() <-chan error

		ret, errno   int32
	}{fd, cmd, arg, 0, 0}
	libcCall(unsafe.Pointer(abi.FuncPCABI0(fcntl_trampoline)), unsafe.Pointer(&args))
	return args.ret, args.errno
}
func fcntl_trampoline()

//go:nosplit
func nanotime1() int64 {
	var ts timespec
	args := struct {
		clock_id int32
		tp       unsafe.Pointer
	}{_CLOCK_MONOTONIC, unsafe.Pointer(&ts)}