//     \tFILE:LINE +0xRELPC sp=... fp=... pc=...
	getPC := func(line string) (uint64, error) {
		_, pcstr, ok := strings.Cut(line, " pc=") // e.g. pc=0x%x
		if !ok {
			return 0, fmt.Errorf("no pc= for stack frame: %s", line)
		}
		return strconv.ParseUint(pcstr, 0, 64) // 0 => allow 0x prefix
	}

	var (
		pcs            []uintptr
		parentSentinel uint64
		childSentinel  = sentinel()

		inReg = append(inReg, bool2byte(abid.inRegPtrs.Get(i)))
		outReg = append(outReg, bool2byte(abid.outRegPtrs.Get(i)))
	}
	if ft.Kind_&abi.KindGCProg != 0 {
		panic("can't handle gc programs")
	}

	// Expand frame type's GC bitmap into byte-map.
	ptrs = ft.Pointers()
	if ptrs {
		nptrs := ft.PtrBytes / goarch.PtrSize
		gcdata := ft.GcSlice(0, (nptrs+7)/8)
		for i := uintptr(0); i < nptrs; i++ {

}

// gsignalStack is unused on js.
type gsignalStack struct{}

const preemptMSupported = false

func preemptM(mp *m) {
	// No threads, so nothing to do.
}

// getfp returns the frame pointer register of its caller or 0 if not implemented.
// TODO: Make this a compiler intrinsic
func getfp() uintptr { return 0 }

func setProcessCPUProfiler(hz int32) {}
func setThreadCPUProfiler(hz int32)  {}

   * structures.
   *
   * We make such subtle calls in [okhttp3.internal.ws.MessageInflater] because we try to read a
   * compressed stream that is terminated in a web socket frame even though the DEFLATE stream is
   * not terminated.
   *
   * Use this method to create a degenerate Okio Buffer where each byte is in a separate segment of
   * the internal list.
   */
  @JvmStatic

func ArrayInit(i, j int) [4]int {
	return [4]int{i, 0, j, 0}
}

// Check that assembly output has matching offset and base register
// (issue #21064).

func check_asmout(b [2]int) int {
	runtime.GC() // use some frame
	// amd64:`.*b\+24\(SP\)`
	// arm:`.*b\+4\(FP\)`
	return b[1]
}

// Check that simple functions get promoted to nosplit, even when
// they might panic in various ways. See issue 31219.
// amd64:"TEXT\t.*NOSPLIT.*"

//go:linkname checkptrBase
func checkptrBase(p unsafe.Pointer) uintptr {
	// stack
	if gp := getg(); gp.stack.lo <= uintptr(p) && uintptr(p) < gp.stack.hi {
		// TODO(mdempsky): Walk the stack to identify the
		// specific stack frame or even stack object that p
		// points into.
		//
		// In the mean time, use "1" as a pseudo-address to
		// represent the stack. This is an invalid address on
		// all platforms, so it's guaranteed to be distinct

// It is not guaranteed to be canonical.
const DefaultGOEXPERIMENT = defaultGOEXPERIMENT

// FramePointerEnabled enables the use of platform conventions for
// saving frame pointers.
//
// This used to be an experiment, but now it's always enabled on
// platforms that support it.
//
// Note: must agree with runtime.framepointer_enabled.

        Map<String, String> childUrlRuleMap = newHashMap();
        childUrlRuleMap.put("//A", "href");
        childUrlRuleMap.put("//AREA", "href");
        childUrlRuleMap.put("//FRAME", "src");
        childUrlRuleMap.put("//IFRAME", "src");
        childUrlRuleMap.put("//IMG", "src");
        childUrlRuleMap.put("//LINK", "href");
        childUrlRuleMap.put("//SCRIPT", "src");

			pc = 0
		}

		// IF LR exists, sigpanictramp must save it to the stack
		// before entry to sigpanic so that panics in leaf
		// functions are correctly handled. This will smash
		// the stack frame but we're not going back there
		// anyway.
		if usesLR {
			c.savelr(c.lr())
		}

		// If PC == 0, probably panicked because of a call to a nil func.

	// This operation must be executed after kubelet is already started in order to minimize the time
	// between the new etcd member is announced and the start of the static pod running the new etcd member, because during
	// this time frame etcd gets temporary not available (only when moving from 1 to 2 members in the etcd cluster).
	// From https://coreos.com/etcd/docs/latest/v2/runtime-configuration.html