return string(buffer[:zb]), nil
	}
	// __errno()
	errno := int(*(*int32)(unsafe.Pointer(runtime.CallLeFuncByPtr(runtime.XplinkLibvec+SYS___ERRNO<<4,
		[]uintptr{}))))
	// __errno2()
	errno2 := int(runtime.CallLeFuncByPtr(runtime.XplinkLibvec+SYS___ERRNO2<<4,
		[]uintptr{}))
	// strerror_r()
	ret = runtime.CallLeFuncByPtr(runtime.XplinkLibvec+SYS_STRERROR_R<<4,
		[]uintptr{uintptr(errno), uintptr(unsafe.Pointer(&buffer[0])), 1024})

	// Simulate a conflicting update in the middle of delete.
	validateAllWithUpdate := func(_ context.Context, _ runtime.Object) error {
		validateCount++
		if validateCount > 1 {
			return nil
		}
		if err := store.GuaranteedUpdate(ctx, key, updatedPod, false, nil,
			storage.SimpleUpdate(func(obj runtime.Object) (runtime.Object, error) {
				pod := obj.(*example.Pod)
				pod.ObjectMeta.Labels = map[string]string{"foo": "bar"}

		canASan = testenv.HasCGO() && platform.ASanSupported(runtime.GOOS, runtime.GOARCH)
		canRace = testenv.HasCGO() && platform.RaceDetectorSupported(runtime.GOOS, runtime.GOARCH)
		// The race detector doesn't work on Alpine Linux:
		// golang.org/issue/14481
		// gccgo does not support the race detector.
		if isAlpineLinux() || runtime.Compiler == "gccgo" {
			canRace = false

		return true
	default:
		return false
	}
}

func roundTrip(t *testing.T, obj runtime.Object) runtime.Object {
	codec := legacyscheme.Codecs.LegacyCodec(corev1.SchemeGroupVersion)
	data, err := runtime.Encode(codec, obj)
	if err != nil {
		t.Errorf("%v\n %#v", err, obj)
		return nil
	}
	obj2, err := runtime.Decode(codec, data)
	if err != nil {
		t.Errorf("%v\nData: %s\nSource: %#v", err, string(data), obj)

			if addr == 0 {
				println("runtime: found bad iterator")
			}
			if addr != x+i {
				print("runtime: addr=", hex(addr), " x+i=", hex(x+i), "\n")
				bad = true
			}
		}
	}
	if !bad {
		var addr uintptr
		tp, addr = tp.next(x + span.elemsize)
		if addr == 0 {
			return
		}
		println("runtime: extra pointer:", hex(addr))
	}

func BenchmarkStatFile(b *testing.B) {
	benchmarkStat(b, filepath.Join(runtime.GOROOT(), "src/os/os_test.go"))
}

func BenchmarkStatDir(b *testing.B) {
	benchmarkStat(b, filepath.Join(runtime.GOROOT(), "src/os"))
}

func BenchmarkLstatDot(b *testing.B) {
	benchmarkLstat(b, ".")
}

func BenchmarkLstatFile(b *testing.B) {
	benchmarkLstat(b, filepath.Join(runtime.GOROOT(), "src/os/os_test.go"))
}

)

var (
	// ErrVersionNotSupported is returned when the api version of runtime interface is not supported
	ErrVersionNotSupported = errors.New("runtime api version is not supported")
)

// podStateProvider can determine if none of the elements are necessary to retain (pod content)
// or if none of the runtime elements are necessary to retain (containers)
type podStateProvider interface {

	matcher := &fakeMatcher{
		DefaultMatch: true,
	}

	var matchedParams []runtime.Object
	paramLock := sync.Mutex{}
	observeParam := func(p runtime.Object) {
		paramLock.Lock()
		defer paramLock.Unlock()
		matchedParams = append(matchedParams, p)
	}
	getAndResetObservedParams := func() []runtime.Object {
		paramLock.Lock()
		defer paramLock.Unlock()
		oldParams := matchedParams

		return
	}

	skip := 3 // runtime.(*mLockProfile).recordUnlock runtime.unlock2 runtime.unlockWithRank
	if staticLockRanking {
		// When static lock ranking is enabled, we'll always be on the system
		// stack at this point. There will be a runtime.unlockWithRank.func1
		// frame, and if the call to runtime.unlock took place on a user stack
		// then there'll also be a runtime.systemstack frame. To keep stack

	if n == 0 {
		panic("testing: zero callers found")
	}
	frames := runtime.CallersFrames(pc[:n])
	var firstFrame, prevFrame, frame runtime.Frame
	for more := true; more; prevFrame = frame {
		frame, more = frames.Next()
		if frame.Function == "runtime.gopanic" {
			continue
		}
		if frame.Function == c.cleanupName {
			frames = runtime.CallersFrames(c.cleanupPc)
			continue
		}
		if firstFrame.PC == 0 {