if IsEnabled() {
		t.Skip("skipping because -test.trace is set")
	}
	Stop()
	buf := new(bytes.Buffer)
	if err := Start(buf); err != nil {
		t.Fatalf("failed to start tracing: %v", err)
	}
	if err := Start(buf); err == nil {
		t.Fatalf("succeed to start tracing second time")
	}
	Stop()
	Stop()
}

func saveTrace(t *testing.T, buf *bytes.Buffer, name string) {
	if !*saveTraces {
		return

        redirector.redirectStandardOutputTo(stdOutListener)
        redirector.start()
        System.out.print('this is stdout')
        System.out.flush()

        then:
        1 * stdOutListener.onOutput('this is stdout')
    }

    def canRedirectMultipleTimes() {
        when:
        redirector.redirectStandardErrorTo(stdErrListener)
        redirector.start()
        redirector.stop()

// symbols with names matching the regular expression.
//
// Alternate usage:
//
//	go tool objdump binary start end
//
// In this mode, objdump disassembles the binary starting at the start address and
// stopping at the end address. The start and end addresses are program
// counters written in hexadecimal with optional leading 0x prefix.
// In this mode, objdump prints a sequence of stanzas of the form:

	cpuHog(20 * time.Millisecond)
}

func cpuHog(dt time.Duration) {
	start := time.Now()
	for i := 0; ; i++ {
		if i%1000 == 0 && time.Since(start) > dt {
			return
		}
	}
}

func allocHog(dt time.Duration) {
	start := time.Now()
	var s [][]byte
	for i := 0; ; i++ {
		if i%1000 == 0 {
			if time.Since(start) > dt {
				return
			}

		} else {
			gs.stop(ev.Time(), ev.Stack(), ctx)
		}
	}
	if !from.Executing() && to.Executing() {
		start := ev.Time()
		if from == trace.GoUndetermined {
			// Back-date the event to the start of the trace.
			start = ctx.startTime
		}
		gs.start(start, goID, ctx)
	}

	if from == trace.GoWaiting {
		// Goroutine unblocked.
		gs.unblock(ev.Time(), ev.Stack(), ev.Goroutine(), ctx)

		}
		done <- struct{}{}
	}()

	// Give the goroutine ample chance to block on the pipe.
	time.Sleep(10 * time.Millisecond)

	// Start tracing.
	if err := trace.Start(os.Stdout); err != nil {
		log.Fatalf("failed to start tracing: %v", err)
	}

	// This isn't enough to have a full generation pass by default,
	// but it is generally enough in stress mode.
	time.Sleep(100 * time.Millisecond)

	"runtime/trace"
	"time"
)

func main() {
	// Start a goroutine that calls runtime.GC to try and
	// introduce some interesting events in between the
	// GOMAXPROCS calls.
	go func() {
		for {
			runtime.GC()
			time.Sleep(1 * time.Millisecond)
		}
	}()

	// Start tracing.
	if err := trace.Start(os.Stdout); err != nil {
		log.Fatalf("failed to start tracing: %v", err)
	}

	ptrType := c.config.Types.BytePtr
	fun := c.Fun("entry",
		Bloc("entry",
			Valu("start", OpInitMem, types.TypeMem, 0, nil),
			Valu("sb", OpSB, c.config.Types.Uintptr, 0, nil),
			Valu("v", OpConstBool, c.config.Types.Bool, 1, nil),
			Valu("addr", OpAddr, ptrType, 0, nil, "sb"),
			Goto("loop")),
		Bloc("loop",
			Valu("phi", OpPhi, types.TypeMem, 0, nil, "start", "store"),

	if volLen < len(path) && os.IsPathSeparator(path[volLen]) {
		volLen++
	}
	vol := path[:volLen]
	dest := vol
	linksWalked := 0
	for start, end := volLen, volLen; start < len(path); start = end {
		for start < len(path) && os.IsPathSeparator(path[start]) {
			start++
		}
		end = start
		for end < len(path) && !os.IsPathSeparator(path[end]) {
			end++
		}

		// On Windows, "." can be a symlink.

	traceEvStacks     // start of a section of the stack table [...traceEvStack]
	traceEvStack      // stack table entry [ID, ...{PC, func string ID, file string ID, line #}]
	traceEvStrings    // start of a section of the string dictionary [...traceEvString]
	traceEvString     // string dictionary entry [ID, length, string]
	traceEvCPUSamples // start of a section of CPU samples [...traceEvCPUSample]