f, err := os.Create(cfg.DebugRuntimeTrace)
		if err != nil {
			base.Fatalf("creating trace file: %v", err)
		}
		if err := rtrace.Start(f); err != nil {
			base.Fatalf("starting event trace: %v", err)
		}
		defer func() {
			rtrace.Stop()
			f.Close()
		}()
	}

	ctx := maybeStartTrace(context.Background())
	ctx, span := trace.StartSpan(ctx, fmt.Sprint("Running ", cmd.Name(), " command"))
	cmd.Run(ctx, cmd, args)

	"os"
	"regexp"
	"strings"

	"internal/trace"
	"internal/trace/event"
	"internal/trace/event/go122"
	"internal/trace/raw"
	"internal/trace/version"
	"internal/txtar"
)

func Main(f func(*Trace)) {
	// Create an output file.
	out, err := os.Create(os.Args[1])
	if err != nil {
		panic(err.Error())
	}
	defer out.Close()

	// Create a new trace.
	trace := NewTrace()

	// Call the generator.

		buf.link = trace.empty
		trace.empty = buf
		trace.reading = nil
	}
	// Write trace header.
	if !trace.headerWritten {
		trace.headerWritten = true
		unlock(&trace.lock)
		return []byte("go 1.23 trace\x00\x00\x00"), false
	}

	// Read the next buffer.

	if trace.readerGen.Load() == 0 {
		trace.readerGen.Store(1)
	}
	var gen uintptr
	for {
		assertLockHeld(&trace.lock)

// license that can be found in the LICENSE file.

package main

/*
// Defined in trace_*.c.
void cCalledFromGo(void);
*/
import "C"
import (
	"context"
	"fmt"
	"log"
	"os"
	"runtime/trace"
)

func init() {
	register("Trace", Trace)
}

// Trace is used by TestTraceUnwindCGO.
func Trace() {
	file, err := os.CreateTemp("", "testprogcgo_trace")
	if err != nil {

// other packages.
type traceKey struct{}

type traceContext struct {
	t   *tracer
	tid uint64
}

// Start starts a trace which writes to the given file.
func Start(ctx context.Context, file string) (context.Context, func() error, error) {
	traceStarted.Store(true)
	if file == "" {
		return nil, nil, errors.New("no trace file supplied")
	}
	f, err := os.Create(file)
	if err != nil {
		return nil, nil, err

// file (trace.out).
//
//	go test -trace=trace.out
//
// This runtime/trace package provides APIs to add equivalent tracing
// support to a standalone program. See the Example that demonstrates
// how to use this API to enable tracing.
//
// There is also a standard HTTP interface to trace data. Adding the
// following line will install a handler under the /debug/pprof/trace URL
// to download a live trace:

	v := ctx.Value(TraceParamsKey{})
	// Should match SingleHandler.Call checks.
	switch typed := v.(type) {
	case *MSS:
		trace.Path += typed.ToQuery()
	case map[string]string:
		m := MSS(typed)
		trace.Path += m.ToQuery()
	case *URLValues:
		trace.Path += typed.Values().Encode()
	case *NoPayload, *Bytes:
		trace.Path = fmt.Sprintf("%s?payload=%T", trace.Path, typed)

	if trace == nil {
		panic("nil trace")
	}
	old := ContextClientTrace(ctx)
	trace.compose(old)

	ctx = context.WithValue(ctx, clientEventContextKey{}, trace)
	if trace.hasNetHooks() {
		nt := &nettrace.Trace{
			ConnectStart: trace.ConnectStart,
			ConnectDone:  trace.ConnectDone,
		}
		if trace.DNSStart != nil {
			nt.DNSStart = func(name string) {

	semconv "go.opentelemetry.io/otel/semconv/v1.17.0"
	"go.opentelemetry.io/otel/trace"
	"k8s.io/apiserver/pkg/endpoints/request"

	tracing "k8s.io/component-base/tracing"
)

// WithTracing adds tracing to requests if the incoming request is sampled
func WithTracing(handler http.Handler, tp trace.TracerProvider) http.Handler {
	opts := []otelhttp.Option{
		otelhttp.WithPropagators(tracing.Propagators()),

	op = strings.Replace(op, "ReadinessCheckHandler", "health.Readiness", 1)
	op = strings.Replace(op, "-fm", "", 1)
	return op
}

// If trace is enabled, execute the request if it is traced by other handlers
// otherwise, generate a trace event with request information but no response.
func httpTracerMiddleware(h http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {