textstksiz := p.To.Offset
	if textstksiz == -8 {
		// Historical way to mark NOFRAME.
		p.From.Sym.Set(obj.AttrNoFrame, true)
		textstksiz = 0
	}
	if textstksiz < 0 {
		c.ctxt.Diag("negative frame size %d - did you mean NOFRAME?", textstksiz)
	}
	if p.From.Sym.NoFrame() {
		if textstksiz != 0 {
			c.ctxt.Diag("NOFRAME functions must have a frame size of 0, not %d", textstksiz)
		}
	}

	MOVW	R2, ret+8(FP)
	RET

// cgocallback(fn, frame unsafe.Pointer, ctxt uintptr)
// See cgocall.go for more details.
TEXT ·cgocallback(SB),NOSPLIT,$12-12
	NO_LOCAL_POINTERS

	// Skip cgocallbackg, just dropm when fn is nil, and frame is the saved g.
	// It is used to dropm while thread is exiting.
	MOVW	fn+0(FP), R5
	BNE	R5, loadg
	// Restore the g from frame.
	MOVW	frame+4(FP), g
	JMP	dropm

loadg:

// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package trace

// Frame is a frame in stack traces.
type Frame struct {
	PC   uint64
	Fn   string
	File string
	Line int
}

const (
	// Special P identifiers:
	FakeP    = 1000000 + iota
	TimerP   // depicts timer unblocks
	NetpollP // depicts network unblocks

		t.Fatalf("unexpected: %v %d %v", err, n, buf)
	}
	// read the remaining frame
	buf = make([]byte, 2)
	if n, err := r.Read(buf); err != nil && n != 2 && bytes.Equal(buf, []byte{0x03, 0x04}) {
		t.Fatalf("unexpected: %v %d %v", err, n, buf)
	}
	// read with buffer equal to frame
	buf = make([]byte, 3)
	if n, err := r.Read(buf); err != nil && n != 3 && bytes.Equal(buf, []byte{0x05, 0x06, 0x07}) {

// throw. go_bootstrap cannot depend on the cgo version of package net in ./make.bash.
package format

type Data struct {
	Events   []*Event         `json:"traceEvents"`
	Frames   map[string]Frame `json:"stackFrames"`
	TimeUnit string           `json:"displayTimeUnit"`
}

type Event struct {
	Name      string  `json:"name,omitempty"`
	Phase     string  `json:"ph"`

     *
     * @see Throwable#toString()
     */
    String getHeader();

    /**
     * Stack frames from the original exception.
     */
    List<StackTraceElement> getStackTrace();

    /**
     * Relevance of a given stack frame in the {@link #getStackTrace() stack trace}.
     */
    StackTraceRelevance getStackTraceRelevance(int frameIndex);

    /**

	if err != nil {
		return Event{}, err
	}
	if spec.IsStack {
		len := int(args[1])
		for i := 0; i < len; i++ {
			// Each stack frame has four args: pc, func ID, file ID, line number.
			frame, err := r.readArgs(4)
			if err != nil {
				return Event{}, err
			}
			args = append(args, frame...)
		}
	}
	var data []byte
	if spec.HasData {
		data, err = r.readData()
		if err != nil {
			return Event{}, err
		}
	}

import okio.ByteString
import okio.Source
import okio.Timeout

/**
 * Reads HTTP/2 transport frames.
 *
 * This implementation assumes we do not send an increased [frame][Settings.getMaxFrameSize] to the
 * peer. Hence, we expect all frames to have a max length of [Http2.INITIAL_MAX_FRAME_SIZE].
 */
class Http2Reader(
  /** Creates a frame reader with max header table size of 4096. */
  private val source: BufferedSource,

	RET

// func cgocallback(fn, frame unsafe.Pointer, ctxt uintptr)
// See cgocall.go for more details.
TEXT ·cgocallback(SB),NOSPLIT,$24-24
	NO_LOCAL_POINTERS

	// Skip cgocallbackg, just dropm when fn is nil, and frame is the saved g.
	// It is used to dropm while thread is exiting.
	MOVV	fn+0(FP), R5
	BNE	R5, loadg
	// Restore the g from frame.
	MOVV	frame+8(FP), g
	JMP	dropm

loadg:

        this.classifiers = ImmutableList.copyOf(classifiers);
    }

    @Nullable
    @Override
    public StackTraceRelevance classify(StackTraceElement frame) {
        for (StackTraceClassifier classifier : classifiers) {
            StackTraceRelevance relevance = classifier.classify(frame);
            if (relevance != null) {
                return relevance;
            }
        }
        return null;
    }