// Fast mappings from enumerations to string IDs that are prepopulated
	// in the trace.
	markWorkerLabels [2][len(gcMarkWorkerModeStrings)]traceArg
	goStopReasons    [2][len(traceGoStopReasonStrings)]traceArg
	goBlockReasons   [2][len(traceBlockReasonStrings)]traceArg

	// enabled indicates whether tracing is enabled, but it is only an optimization,
	// NOT the source of truth on whether tracing is enabled. Tracing is only truly

// that we have both, and waitReason is way more descriptive.
func (tl traceLocker) GoPark(reason traceBlockReason, skip int) {
	tl.eventWriter(traceGoRunning, traceProcRunning).commit(traceEvGoBlock, traceArg(trace.goBlockReasons[tl.gen%2][reason]), tl.stack(skip))
}

// GoUnpark emits a GoUnblock event.
func (tl traceLocker) GoUnpark(gp *g, skip int) {
	// Emit a GoWaiting status if necessary for the unblocked goroutine.