const runtime.traceEvGoSyscallBegin

2 uses

	runtime (current package)
		traceevent.go#L54: 	traceEvGoSyscallBegin      // syscall enter [timestamp, P seq, stack ID]
		traceruntime.go#L508: 	tl.eventWriter(traceGoRunning, traceProcRunning).event(traceEvGoSyscallBegin, pp.trace.nextSeq(tl.gen), tl.stack(1))