if host32bit {
			// convert the lower digits using 32bit operations
			for u >= 1e9 {
				// Avoid using r = a%b in addition to q = a/b
				// since 64bit division and modulo operations
				// are calculated by runtime functions on 32bit machines.
				q := u / 1e9
				us := uint(u - q*1e9) // u % 1e9 fits into a uint
				for j := 4; j > 0; j-- {
					is := us % 100 * 2
					us /= 100
					i -= 2

	if bt == zeroBintime {
		return fallback_nanotime()
	}
	return int64((1e9 * uint64(bt.sec)) + ((1e9 * uint64(bt.frac>>32)) >> 32))
}

func walltime() (sec int64, nsec int32) {
	bt := vdsoClockGettime(_CLOCK_REALTIME)
	if bt == zeroBintime {
		return fallback_walltime()
	}
	return int64(bt.sec), int32((1e9 * uint64(bt.frac>>32)) >> 32)

	uc_stack    stackt
	__spare__   [8]int32
}

type timespec struct {
	tv_sec  int64
	tv_nsec int64
}

//go:nosplit
func (ts *timespec) setNsec(ns int64) {
	ts.tv_sec = ns / 1e9
	ts.tv_nsec = ns % 1e9
}

type timeval struct {
	tv_sec  int64
	tv_usec int64
}

func (tv *timeval) set_usec(x int32) {
	tv.tv_usec = int64(x)
}

type itimerval struct {
	it_interval timeval

		waitms = 0
	} else if delay < 1e6 {
		waitms = 1
	} else if delay < 1e15 {
		waitms = int32(delay / 1e6)
	} else {
		// An arbitrary cap on how long to wait for a timer.
		// 1e9 ms == ~11.5 days.
		waitms = 1e9
	}
	var events [128]syscall.EpollEvent
retry:
	n, errno := syscall.EpollWait(epfd, events[:], int32(len(events)), waitms)
	if errno != 0 {
		if errno != _EINTR {

	it_interval timeval
	it_value    timeval
}

type timespec struct {
	tv_sec  int64
	tv_nsec int64
}

//go:nosplit
func (ts *timespec) setNsec(ns int64) {
	ts.tv_sec = ns / 1e9
	ts.tv_nsec = ns % 1e9
}

type fpcontrol struct {
	pad_cgo_0 [2]byte
}

type fpstatus struct {
	pad_cgo_0 [2]byte
}

type regmmst struct {
	mmst_reg  [10]int8
	mmst_rsrv [6]int8
}

		t.Fatal(err2)
	}

	const time0 = 1257894000000000000
	got := [][]fakeTimeFrame{f1, f2}
	var want = [][]fakeTimeFrame{{
		{time0 + 1, "line 2\n"},
		{time0 + 1, "line 3\n"},
		{time0 + 1e9, "line 5\n"},
		{time0 + 1e9, "2009-11-10T23:00:01Z"},
	}, {
		{time0, "line 1\n"},
		{time0 + 2, "line 4\n"},
	}}
	if !reflect.DeepEqual(want, got) {
		t.Fatalf("want %v, got %v", want, got)
	}
}

	ss_sp    uintptr
	ss_size  uintptr
	ss_flags int32
}

type timespec struct {
	tv_sec  int64
	tv_nsec int64
}

func (ts *timespec) setNsec(ns int64) {
	ts.tv_sec = ns / 1e9
	ts.tv_nsec = ns % 1e9
}

type timeval struct {
	tv_sec  int64
	tv_usec int32
	_       [4]byte // EABI
}

func (tv *timeval) set_usec(x int32) {
	tv.tv_usec = x
}

type itimerval struct {

	ss_flags  int32
	pad_cgo_0 [4]byte
}

type timespec struct {
	tv_sec  int64
	tv_nsec int64
}

//go:nosplit
func (ts *timespec) setNsec(ns int64) {
	ts.tv_sec = ns / 1e9
	ts.tv_nsec = ns % 1e9
}

type timeval struct {
	tv_sec    int64
	tv_usec   int32
	pad_cgo_0 [4]byte
}

func (tv *timeval) set_usec(x int32) {
	tv.tv_usec = x
}

type itimerval struct {

		return uint64(ticksPerSecond() / traceTimeDiv)
	}
	// Our clock is nanotime, so it's just the constant time division.
	// (trace clock units / nanoseconds) * (1e9 nanoseconds / 1 second)
	return uint64(1.0 / float64(traceTimeDiv) * 1e9)
}

// traceFrequency writes a batch with a single EvFrequency event.
//
// freq is the number of trace clock units per second.
func traceFrequency(gen uintptr) {

}

//go:linkname nanotime
//go:nosplit
func nanotime() int64 {
	return faketime
}

//go:linkname time_now time.now
func time_now() (sec int64, nsec int32, mono int64) {
	return faketime / 1e9, int32(faketime % 1e9), faketime
}

// write is like the Unix write system call.
// We have to avoid write barriers to avoid potential deadlock
// on write calls.
//
//go:nowritebarrierrec