//
//go:nosplit
func (tl traceLocker) ok() bool {
	return tl.gen != 0
}

// traceRelease indicates that this M is done writing trace events.
//
// nosplit because it's called on the syscall path when stack movement is forbidden.
//
//go:nosplit
func traceRelease(tl traceLocker) {
	seq := tl.mp.trace.seqlock.Add(1)
	if debugTraceReentrancy && seq%2 != 0 {

		tl.Gomaxprocs(gomaxprocs)
		traceRelease(tl)
	}

	// Emit a GCActive event in the new generation if necessary.
	//
	// It's important that we do this before allowing stop-the-worlds again,
	// because that could emit global GC-related events.
	if !stopTrace && (gcphase == _GCmark || gcphase == _GCmarktermination) {
		tl := traceAcquire()
		tl.GCActive()
		traceRelease(tl)
	}

		throw("mspan.sweep: bad span state")
	}

	trace := traceAcquire()
	if trace.ok() {
		trace.GCSweepSpan(s.npages * _PageSize)
		traceRelease(trace)
	}

	mheap_.pagesSwept.Add(int64(s.npages))

	spc := s.spanclass
	size := s.elemsize

	// The allocBits indicate which unmarked objects don't need to be

			s.elemsize = uintptr(n)
		}
		v = unsafe.Pointer(s.base())
	}

	if traceAllocFreeEnabled() {
		trace := traceTryAcquire()
		if trace.ok() {
			trace.GoroutineStackAlloc(uintptr(v), uintptr(n))
			traceRelease(trace)
		}
	}
	if raceenabled {
		racemalloc(v, uintptr(n))
	}
	if msanenabled {
		msanmalloc(v, uintptr(n))
	}
	if asanenabled {
		asanunpoison(v, uintptr(n))
	}

// In terms of the C memory model, RaceRelease is equivalent to
// atomic_store(memory_order_release).
//
//go:nosplit
func RaceRelease(addr unsafe.Pointer) {
	racerelease(addr)
}

// RaceReleaseMerge is like RaceRelease, but also establishes a happens-before
// relation with the preceding RaceRelease or RaceReleaseMerge on addr.
//
// In terms of the C memory model, RaceReleaseMerge is equivalent to
// atomic_exchange(memory_order_release).
//

		unlock(&c.lock)
		panic(plainError("close of closed channel"))
	}

	if raceenabled {
		callerpc := getcallerpc()
		racewritepc(c.raceaddr(), callerpc, abi.FuncPCABIInternal(closechan))
		racerelease(c.raceaddr())
	}

	c.closed = 1

	var glist gList

	// release all readers
	for {
		sg := c.recvq.dequeue()
		if sg == nil {
			break
		}
		if sg.elem != nil {

}

func reflectOffsLock() {
	lock(&reflectOffs.lock)
	if raceenabled {
		raceacquire(unsafe.Pointer(&reflectOffs.lock))
	}
}

func reflectOffsUnlock() {
	if raceenabled {
		racerelease(unsafe.Pointer(&reflectOffs.lock))
	}
	unlock(&reflectOffs.lock)
}

// resolveNameOff should be an internal detail,
// but widely used packages access it using linkname.

	// until then.
	if raceenabled && mainStarted {
		raceacquire(unsafe.Pointer(&cbs.lock))
	}
}

func cbsUnlock() {
	if raceenabled && mainStarted {
		racerelease(unsafe.Pointer(&cbs.lock))
	}
	unlock(&cbs.lock)
}

// winCallback records information about a registered Go callback.
type winCallback struct {
	fn     *funcval // Go function

	semacquire1(&metricsSema, true, 0, 0, waitReasonSemacquire)
	if raceenabled {
		raceacquire(unsafe.Pointer(&metricsSema))
	}
}

func metricsUnlock() {
	if raceenabled {
		racerelease(unsafe.Pointer(&metricsSema))
	}
	semrelease(&metricsSema)
}

// initMetrics initializes the metrics map if it hasn't been yet.
//
// metricsSema must be held.
func initMetrics() {
	if metricsInit {

//go:linkname newTimer time.newTimer
func newTimer(when, period int64, f func(arg any, seq uintptr, delay int64), arg any, c *hchan) *timeTimer {
	t := new(timeTimer)
	t.timer.init(nil, nil)
	t.trace("new")
	if raceenabled {
		racerelease(unsafe.Pointer(&t.timer))
	}
	if c != nil {
		lockInit(&t.sendLock, lockRankTimerSend)
		t.isChan = true
		c.timer = &t.timer
		if c.dataqsiz == 0 {
			throw("invalid timer channel: no capacity")
		}