writeMedium(frame, (headerBlock.size / 2).toInt() + paddingLength + 1)
    frame.writeByte(Http2.TYPE_HEADERS)
    frame.writeByte(FLAG_PADDED)
    frame.writeInt(expectedStreamId and 0x7fffffff)
    frame.writeByte(paddingLength)
    frame.write(headerBlock, headerBlock.size / 2)
    frame.write(padding)

    // Write the continuation frame, specifying no more frames are expected.

            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");

func (frame *stkframe) argBytes() uintptr {
	if frame.fn.args != abi.ArgsSizeUnknown {
		return uintptr(frame.fn.args)
	}
	// This is an uncommon and complicated case. Fall back to fully
	// fetching the argument map to compute its size.
	argMap, _ := frame.argMapInternal()
	return uintptr(argMap.n) * goarch.PtrSize
}

// argMapInternal is used internally by stkframe to fetch special
// argument maps.
//

		w.byte(byte(traceEvStacks))
	}

	// Emit stack event.
	w.byte(byte(traceEvStack))
	w.varint(uint64(node.id))
	w.varint(uint64(len(frames)))
	for _, frame := range frames {
		w.varint(uint64(frame.PC))
		w.varint(frame.funcID)
		w.varint(frame.fileID)
		w.varint(frame.line)
	}

	// Recursively walk all child nodes.
	for i := range node.children {
		child := node.children[i].Load()
		if child == nil {

func.func @enter_parallel_iterations(%arg0: tensor<*xf32>, %arg1: i1) -> tensor<*xf32> {
  %result = tf_executor.graph {
// CHECK: tf_executor.Enter %{{.*}} frame "some/frame" parallel_iterations 42 : tensor<*xf32>
    %res:2 = tf_executor.Enter %arg0 frame "some/frame" parallel_iterations 42 : tensor<*xf32>
    tf_executor.fetch %res#0 : tensor<*xf32>
  }
  func.return %result : tensor<*xf32>
}

				totalTraceSamples++
				if hogRegion != nil && ev.Goroutine() == hogRegion.Goroutine() {
					traceSamples++
					var fns []string
					ev.Stack().Frames(func(frame trace.StackFrame) bool {
						if frame.Func != "runtime.goexit" {
							fns = append(fns, fmt.Sprintf("%s:%d", frame.Func, frame.Line))
						}
						return true
					})
					stack := strings.Join(fns, "|")
					traceStacks[stack]++
				}
			}

	}

	symbolizeResult := lookupTried
	if frame.PC == 0 || frame.Function == "" || frame.File == "" || frame.Line == 0 {
		symbolizeResult |= lookupFailed
	}

	if frame.PC == 0 {
		// If we failed to resolve the frame, at least make up
		// a reasonable call PC. This mostly happens in tests.
		frame.PC = addr - 1
	}
	ret := []runtime.Frame{frame}
	for frame.Function != "runtime.goexit" && more {

func adjustframe(frame *stkframe, adjinfo *adjustinfo) {
	if frame.continpc == 0 {
		// Frame is dead.
		return
	}
	f := frame.fn
	if stackDebug >= 2 {
		print("    adjusting ", funcname(f), " frame=[", hex(frame.sp), ",", hex(frame.fp), "] pc=", hex(frame.pc), " continpc=", hex(frame.continpc), "\n")
	}

	// Adjust saved frame pointer if there is one.

			return err
		}

		// Read how many frames are in each stack.
		nFrames, err := binary.ReadUvarint(r)
		if err != nil {
			return err
		}
		if nFrames > go122.MaxFramesPerStack {
			return fmt.Errorf("invalid stack size %d, maximum is %d", nFrames, go122.MaxFramesPerStack)
		}

		// Each frame consists of 4 fields: pc, funcID (string), fileID (string), line.
		frames := make([]uint64, 0, nFrames)

	// The underlying Reader.
	r io.Reader

	// Whether we have read the frame header.
	// This is of interest when buffer is empty.
	// If true we expect to see a new block.
	sawFrameHeader bool

	// Whether the current frame expects a checksum.
	hasChecksum bool

	// Whether we have read at least one frame.
	readOneFrame bool

	// True if the frame size is not known.
	frameSizeUnknown bool