pp := gp.m.p
	w := tl.eventWriter(traceGoRunnable, traceProcRunning)
	w = w.write(traceEvGoStart, traceArg(gp.goid), gp.trace.nextSeq(tl.gen))
	if pp.ptr().gcMarkWorkerMode != gcMarkWorkerNotWorker {
		w = w.write(traceEvGoLabel, trace.markWorkerLabels[tl.gen%2][pp.ptr().gcMarkWorkerMode])
	}
	w.end()
}

// GoEnd emits a GoDestroy event.
//
// TODO(mknyszek): Rename this to GoDestroy.
func (tl traceLocker) GoEnd() {

	limiterEvent limiterEvent

	// gcMarkWorkerMode is the mode for the next mark worker to run in.
	// That is, this is used to communicate with the worker goroutine
	// selected for immediate execution by
	// gcController.findRunnableGCWorker. When scheduling other goroutines,
	// this field must be set to gcMarkWorkerNotWorker.
	gcMarkWorkerMode gcMarkWorkerMode

type limiterEventType uint8

const (
	limiterEventNone           limiterEventType = iota // None of the following events.
	limiterEventIdleMarkWork                           // Refers to an idle mark worker (see gcMarkWorkerMode).
	limiterEventMarkAssist                             // Refers to mark assist (see gcAssistAlloc).
	limiterEventScavengeAssist                         // Refers to a scavenge assist (see allocSpan).