}
        }

        private void appendFrame(String prefix, StackTraceElement frame, StackTraceRelevance relevance) throws IOException {
            listener.beforeFrame(frame, relevance);

            builder.append(prefix)
                .append("\tat ")
                .append(frame.toString())
                .append(lineSeparator);
        }

// Package framepointer defines an Analyzer that reports assembly code
// that clobbers the frame pointer before saving it.
package framepointer

import (
	"go/build"
	"regexp"
	"strings"

	"golang.org/x/tools/go/analysis"
	"golang.org/x/tools/go/analysis/passes/internal/analysisutil"
)

const Doc = "report assembly that clobbers the frame pointer before saving it"

var Analyzer = &analysis.Analyzer{
	Name: "framepointer",

// 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}) {

     */
    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);

    /**
     * Failures suppressed in the original exception.
     */

	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
		}
	}

        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;
    }

	{"-O2"},
	{"-Osmall"},
	{"-W"},
	{"-Wall"},
	{"-Wp,-Dfoo=bar"},
	{"-Wp,-Ufoo"},
	{"-Wp,-Dfoo1"},
	{"-Wp,-Ufoo1"},
	{"-flto"},
	{"-fobjc-arc"},
	{"-fno-objc-arc"},
	{"-fomit-frame-pointer"},
	{"-fno-omit-frame-pointer"},
	{"-fpic"},
	{"-fno-pic"},
	{"-fPIC"},
	{"-fno-PIC"},
	{"-fpie"},
	{"-fno-pie"},
	{"-fPIE"},
	{"-fno-PIE"},
	{"-fsplit-stack"},
	{"-fno-split-stack"},
	{"-fstack-xxx"},

			break
		}
		if p.Pos.Xlogue() == src.PosPrologueEnd {
			break
		}
	}
	if pushbp == nil {
		ctxt.Diag("missing frame pointer instruction: PUSHQ BP")
		return
	}

	// It must be followed by a MOVQ SP, BP.
	movbp := pushbp.Link
	if movbp == nil {
		ctxt.Diag("missing frame pointer instruction: MOVQ SP, BP")
		return
	}
	if !(movbp.As == AMOVQ && movbp.From.Type == obj.TYPE_REG && movbp.From.Reg == REG_SP &&

// runtime, so that a stack map for it can be constructed, since it contains
// pointers visible to the GC.
#define LOCAL_RETVALID 40
#define LOCAL_REGARGS 48

// The frame size of the functions below is
// 32 (args of callReflect) + 8 (bool + padding) + 392 (abi.RegArgs) = 432.

// makeFuncStub is the code half of the function returned by MakeFunc.