w := tl.writer()
	if pp := tl.mp.p.ptr(); pp != nil && !pp.trace.statusWasTraced(tl.gen) && pp.trace.acquireStatus(tl.gen) {
		w = w.writeProcStatus(uint64(pp.id), procStatus, pp.trace.inSweep)
	}
	if gp := tl.mp.curg; gp != nil && !gp.trace.statusWasTraced(tl.gen) && gp.trace.acquireStatus(tl.gen) {

	// calls into Go, until the thread dies. This is still
	// possible on other platforms, however.
	b0 := g.Batch(trace.ThreadID(0), 0)
	b0.Event("GoCreateSyscall", trace.GoID(4))
	b0.Event("ProcStatus", trace.ProcID(0), go122.ProcIdle)
	b0.Event("ProcStart", trace.ProcID(0), testgen.Seq(1))
	b0.Event("GoSyscallEndBlocked")
	b0.Event("GoStart", trace.GoID(4), testgen.Seq(1))
	b0.Event("GoSyscallBegin", testgen.Seq(2), testgen.NoStack)

	}
	return nil
}

func VerifyEchoTraces(t framework.TestContext, namespace, clName string, traces []zipkin.Trace) bool {
	t.Helper()
	wtr := WantTraceRoot(namespace, clName)
	for _, trace := range traces {
		// compare each candidate trace with the wanted trace
		for _, s := range trace.Spans {
			// find the root span of candidate trace and do recursive comparison
			if s.ParentSpanID == "" && CompareTrace(t, s, wtr) {
				return true

//
// This is useful for finding bugs in trace state reset.

//go:build ignore

package main

import (
	"bytes"
	"log"
	"os"
	"runtime"
	"runtime/trace"
)

func main() {
	// Trace a few times.
	for i := 0; i < 10; i++ {
		var buf bytes.Buffer
		if err := trace.Start(&buf); err != nil {
			log.Fatalf("failed to start tracing: %v", err)
		}

		w.byte(byte(traceAllocFreeInfoBatch))
	}

	// Emit info.
	w.varint(uint64(trace.minPageHeapAddr))
	w.varint(uint64(pageSize))
	w.varint(uint64(minHeapAlign))
	w.varint(uint64(fixedStack))

	// Finish writing the batch.
	w.flush().end()

	// Start tracing.
	trace := traceAcquire()
	if !trace.ok() {
		throw("traceSnapshotMemory: tracing is not enabled")
	}

        }
    }

    private
    inline fun withPropertyTrace(trace: PropertyTrace?, block: ScopedFingerprintWriter<T>.() -> Unit) {
        if (trace != null) {
            writeContext.withPropertyTrace(trace) { block() }
        } else {
            block()
        }
    }

package oldtrace

import (
	"bytes"
	"internal/trace/version"
	"os"
	"path/filepath"
	"strings"
	"testing"
)

func TestCorruptedInputs(t *testing.T) {
	// These inputs crashed parser previously.
	tests := []string{
		"gotrace\x00\x020",
		"gotrace\x00Q00\x020",
		"gotrace\x00T00\x020",
		"gotrace\x00\xc3\x0200",
		"go 1.5 trace\x00\x00\x00\x00\x020",
		"go 1.5 trace\x00\x00\x00\x00Q00\x020",

export ARTIFACTS="${ARTIFACTS:-$(mktemp -d)}"
trace "init" make init

if [[ -z "${SKIP_SETUP:-}" ]]; then
  export DEFAULT_CLUSTER_YAML="./prow/config/default.yaml"
  export METRICS_SERVER_CONFIG_DIR='./prow/config/metrics'

  if [[ "${TOPOLOGY}" == "SINGLE_CLUSTER" ]]; then
    trace "setup kind cluster" setup_kind_cluster_retry "istio-testing" "${NODE_IMAGE}" "${KIND_CONFIG}"
  else

		}
	}

	tests := [...]struct {
		trace, old *ClientTrace
		want       string
	}{
		0: {
			want: "T",
			trace: &ClientTrace{
				ConnectStart: connectStart('T'),
			},
		},
		1: {
			want: "TO",
			trace: &ClientTrace{
				ConnectStart: connectStart('T'),
			},
			old: &ClientTrace{ConnectStart: connectStart('O')},
		},
		2: {
			want:  "O",
			trace: &ClientTrace{},

// information, and is purely an artifact of the runtime implementation) doesn't
// make it into the trace.

//go:build ignore

package main

import (
	"context"
	"log"
	"os"
	"runtime"
	"runtime/trace"
	"sync"
)

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