How to use symbolize method of symbolizer Package

Best Syzkaller code snippet using symbolizer.symbolize

main.go

Source:main.go

...9	"os"10	"path/filepath"11	"strings"12	"time"13	"go.fuchsia.dev/fuchsia/tools/debug/symbolize"14	"go.fuchsia.dev/fuchsia/tools/lib/cache"15	"go.fuchsia.dev/fuchsia/tools/lib/color"16	"go.fuchsia.dev/fuchsia/tools/lib/logger"17)18type argList []string19func (a *argList) String() string {20	return fmt.Sprintf("%s", []string(*a))21}22func (a *argList) Set(value string) error {23	*a = append(*a, value)24	return nil25}26const (27	symbolCacheSize = 10028	defaultTimeout  = 5 * time.Second29)30var (31	symbolServers   argList32	symbolCache     string33	symbolIndex     string34	buildIDDirPaths argList35	colors          color.EnableColor36	jsonOutput      string37	idsPaths        argList38	// TODO(jakehehrlich): Make idsRel always true and remove this flag.39	idsRel                   bool40	level                    logger.LogLevel41	llvmSymboPath            string42	llvmSymboRestartInterval uint43	cloudFetchTimeout        time.Duration44)45func init() {46	colors = color.ColorAuto47	level = logger.InfoLevel48	defaultSymbolIndex := ""49	if homeDir, err := os.UserHomeDir(); err == nil {50		defaultSymbolIndex = filepath.Join(homeDir, ".fuchsia", "debug", "symbol-index")51	}52	flag.Var(&symbolServers, "symbol-server", "a GCS URL or bucket name that contains debug binaries indexed by build ID")53	flag.StringVar(&symbolCache, "symbol-cache", "", "path to directory to store cached debug binaries in")54	flag.StringVar(&symbolIndex, "symbol-index", defaultSymbolIndex, "path to the symbol-index file")55	flag.Var(&buildIDDirPaths, "build-id-dir", "path to .build-id directory")56	flag.StringVar(&llvmSymboPath, "llvm-symbolizer", "llvm-symbolizer", "path to llvm-symbolizer")57	flag.Var(&idsPaths, "ids", "(deprecated) alias for -ids-txt")58	flag.Var(&idsPaths, "ids-txt", "path to ids.txt")59	flag.Var(&colors, "color", "use color in output, can be never, auto, always")60	flag.Var(&level, "level", "output verbosity, can be fatal, error, warning, info, debug or trace")61	flag.StringVar(&jsonOutput, "json-output", "", "outputs trigger information to the specified file")62	flag.BoolVar(&idsRel, "ids-rel", false, "tells the symbolizer to always use ids.txt relative paths")63	flag.UintVar(&llvmSymboRestartInterval, "llvm-symbolizer-restart-interval", 15,64		"How many queries to make to the llvm-symbolizer tool before restarting it. 0 means never restart it. Use to control memory usage. See fxbug.dev/42018.")65	flag.DurationVar(&cloudFetchTimeout, "symbol-server-timeout", defaultTimeout, "Symbol server timeout for fetching an object from gs")66}67func main() {68	// Parse flags and setup helpers69	flag.Parse()70	// Setup logger and context71	painter := color.NewColor(colors)72	log := logger.NewLogger(level, painter, os.Stdout, os.Stderr, "")73	ctx := logger.WithLogger(context.Background(), log)74	symbolizer := symbolize.NewLLVMSymbolizer(llvmSymboPath, llvmSymboRestartInterval)75	var repo symbolize.CompositeRepo76	for _, dir := range buildIDDirPaths {77		repo.AddRepo(symbolize.NewBuildIDRepo(dir))78	}79	for _, idsPath := range idsPaths {80		repo.AddRepo(symbolize.NewIDsTxtRepo(idsPath, idsRel))81	}82	// Setup symbol index.83	if symbolIndex != "" {84		if _, err := os.Stat(symbolIndex); !os.IsNotExist(err) {85			file, err := os.Open(symbolIndex)86			if err != nil {87				log.Fatalf("failed to open: %s", err)88			}89			defer file.Close()90			index, err := symbolize.LoadIndex(file)91			if err != nil {92				log.Fatalf("failed to load the symbol-index: %s", err)93			}94			for _, entry := range index {95				if fi, err := os.Stat(entry.SymbolPath); !os.IsNotExist(err) {96					if fi.IsDir() {97						repo.AddRepo(symbolize.NewBuildIDRepo(entry.SymbolPath))98					} else {99						repo.AddRepo(symbolize.NewIDsTxtRepo(entry.SymbolPath, idsRel))100					}101				}102			}103		}104	}105	// Setup symbol cache.106	var filecache *cache.FileCache107	if len(symbolServers) > 0 {108		if symbolCache == "" {109			log.Fatalf("-symbol-cache must be set if a symbol server is used")110		}111		var err error112		if filecache, err = cache.GetFileCache(symbolCache, symbolCacheSize); err != nil {113			log.Fatalf("%v\n", err)114		}115	}116	for _, symbolServer := range symbolServers {117		// TODO(atyfto): Remove when all consumers are passing GCS URLs.118		if !strings.HasPrefix(symbolServer, "gs://") {119			symbolServer = "gs://" + symbolServer120		}121		cloudRepo, err := symbolize.NewCloudRepo(ctx, symbolServer, filecache)122		if err != nil {123			log.Fatalf("%v\n", err)124		}125		// Set a timeout for fetching an object from gs, defaults to 5 seconds126		cloudRepo.SetTimeout(cloudFetchTimeout)127		repo.AddRepo(cloudRepo)128	}129	// Construct the nodes of the pipeline130	demuxer := symbolize.NewDemuxer(&repo, symbolizer)131	presenter := symbolize.NewBasicPresenter(os.Stdout, painter.Enabled())132	tap := symbolize.NewTriggerTap()133	var dumpHandler *symbolize.DumpHandler134	if jsonOutput != "" {135		dumpHandler = &symbolize.DumpHandler{}136		tap.AddHandler(dumpHandler.HandleDump)137	}138	// Build the pipeline to start presenting.139	if err := symbolizer.Start(ctx); err != nil {140		log.Fatalf("%v\n", err)141	}142	inputLines := symbolize.StartParsing(ctx, os.Stdin)143	outputLines := demuxer.Start(ctx, inputLines)144	trash := symbolize.ComposePostProcessors(ctx, outputLines,145		tap,146		&symbolize.ContextPresenter{},147		&symbolize.OptimizeColor{},148		symbolize.NewBacktracePresenter(os.Stdout, presenter))149	symbolize.Consume(trash)150	// Once the pipeline has finished output all triggers151	if jsonOutput != "" {152		file, err := os.Create(jsonOutput)153		if err != nil {154			log.Fatalf("%v\n", err)155		}156		if err := dumpHandler.Write(file); err != nil {157			log.Fatalf("%v\n", err)158		}159	}160}...

symbolizer.go

Source:symbolizer.go

1// Copyright 2016 syzkaller project authors. All rights reserved.2// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.3// TODO: strip " (discriminator N)", "constprop", "isra" from function names4package symbolizer5import (6	"bufio"7	"fmt"8	"io"9	"os/exec"10	"strconv"11	"strings"12	"github.com/ZHYfeng/Dependency/03-syzkaller/pkg/osutil"13)14type Symbolizer struct {15	subprocs map[string]*subprocess16}17type Frame struct {18	PC     uint6419	Func   string20	File   string21	Line   int22	Inline bool23}24type subprocess struct {25	cmd     *exec.Cmd26	stdin   io.Closer27	stdout  io.Closer28	input   *bufio.Writer29	scanner *bufio.Scanner30}31func NewSymbolizer() *Symbolizer {32	return &Symbolizer{}33}34func (s *Symbolizer) Symbolize(bin string, pc uint64) ([]Frame, error) {35	return s.SymbolizeArray(bin, []uint64{pc})36}37func (s *Symbolizer) SymbolizeArray(bin string, pcs []uint64) ([]Frame, error) {38	sub, err := s.getSubprocess(bin)39	if err != nil {40		return nil, err41	}42	return symbolize(sub.input, sub.scanner, pcs)43}44func (s *Symbolizer) Close() {45	for _, sub := range s.subprocs {46		sub.stdin.Close()47		sub.stdout.Close()48		sub.cmd.Process.Kill()49		sub.cmd.Wait()50	}51}52func (s *Symbolizer) getSubprocess(bin string) (*subprocess, error) {53	if sub := s.subprocs[bin]; sub != nil {54		return sub, nil55	}56	cmd := osutil.Command("addr2line", "-afi", "-e", bin)57	stdin, err := cmd.StdinPipe()58	if err != nil {59		return nil, err60	}61	stdout, err := cmd.StdoutPipe()62	if err != nil {63		stdin.Close()64		return nil, err65	}66	if err := cmd.Start(); err != nil {67		stdin.Close()68		stdout.Close()69		return nil, err70	}71	sub := &subprocess{72		cmd:     cmd,73		stdin:   stdin,74		stdout:  stdout,75		input:   bufio.NewWriter(stdin),76		scanner: bufio.NewScanner(stdout),77	}78	if s.subprocs == nil {79		s.subprocs = make(map[string]*subprocess)80	}81	s.subprocs[bin] = sub82	return sub, nil83}84func symbolize(input *bufio.Writer, scanner *bufio.Scanner, pcs []uint64) ([]Frame, error) {85	var frames []Frame86	done := make(chan error, 1)87	go func() {88		var err error89		defer func() {90			done <- err91		}()92		if !scanner.Scan() {93			if err = scanner.Err(); err == nil {94				err = io.EOF95			}96			return97		}98		for range pcs {...

bsd.go

Source:bsd.go

...8	"path/filepath"9	"regexp"10	"strconv"11	"strings"12	"github.com/google/syzkaller/pkg/symbolizer"13)14type bsd struct {15	*config16	oopses       []*oops17	symbolizeRes []*regexp.Regexp18	kernelObject string19	symbols      map[string][]symbolizer.Symbol20}21func ctorBSD(cfg *config, oopses []*oops, symbolizeRes []*regexp.Regexp) (Reporter, error) {22	var symbols map[string][]symbolizer.Symbol23	kernelObject := ""24	if cfg.kernelObj != "" {25		kernelObject = filepath.Join(cfg.kernelObj, cfg.target.KernelObject)26		var err error27		symb := symbolizer.NewSymbolizer(cfg.target)28		symbols, err = symb.ReadTextSymbols(kernelObject)29		if err != nil {30			return nil, err31		}32	}33	ctx := &bsd{34		config:       cfg,35		oopses:       oopses,36		symbolizeRes: symbolizeRes,37		kernelObject: kernelObject,38		symbols:      symbols,39	}40	return ctx, nil41}42func (ctx *bsd) ContainsCrash(output []byte) bool {43	return containsCrash(output, ctx.oopses, ctx.ignores)44}45func (ctx *bsd) Parse(output []byte) *Report {46	stripped := bytes.Replace(output, []byte{'\r', '\n'}, []byte{'\n'}, -1)47	stripped = bytes.Replace(stripped, []byte{'\n', '\r'}, []byte{'\n'}, -1)48	for len(stripped) != 0 && stripped[0] == '\r' {49		stripped = stripped[1:]50	}51	rep := simpleLineParser(stripped, ctx.oopses, nil, ctx.ignores)52	if rep == nil {53		return nil54	}55	rep.Output = output56	return rep57}58func (ctx *bsd) Symbolize(rep *Report) error {59	symb := symbolizer.NewSymbolizer(ctx.config.target)60	defer symb.Close()61	var symbolized []byte62	s := bufio.NewScanner(bytes.NewReader(rep.Report))63	prefix := rep.reportPrefixLen64	for s.Scan() {65		line := append([]byte{}, s.Bytes()...)66		line = append(line, '\n')67		newLine := ctx.symbolizeLine(symb.Symbolize, line)68		if prefix > len(symbolized) {69			prefix += len(newLine) - len(line)70		}71		symbolized = append(symbolized, newLine...)72	}73	rep.Report = symbolized74	rep.reportPrefixLen = prefix75	return nil76}77func (ctx *bsd) symbolizeLine(symbFunc func(bin string, pc uint64) ([]symbolizer.Frame, error),78	line []byte) []byte {79	var match []int80	// Check whether the line corresponds to the any of the parts that require symbolization.81	for _, re := range ctx.symbolizeRes {82		match = re.FindSubmatchIndex(line)83		if match != nil {84			break85		}86	}87	if match == nil {88		return line89	}90	// First part of the matched regex contains the function name.91	// Second part contains the offset.92	fn := line[match[2]:match[3]]93	off, err := strconv.ParseUint(string(line[match[4]:match[5]]), 16, 64)94	if err != nil {95		return line96	}97	// Get the symbol from the list of symbols generated using the kernel object and addr2line.98	symb := ctx.symbols[string(fn)]99	if len(symb) == 0 {100		return line101	}102	fnStart := (0xffffffff << 32) | symb[0].Addr103	// Retrieve the frames for the corresponding offset of the function.104	frames, err := symbFunc(ctx.kernelObject, fnStart+off)105	if err != nil || len(frames) == 0 {106		return line107	}108	var symbolized []byte109	// Go through each of the frames and add the corresponding file names and line numbers.110	for _, frame := range frames {111		file := frame.File112		file = strings.TrimPrefix(file, ctx.kernelBuildSrc)113		file = strings.TrimPrefix(file, "/")114		info := fmt.Sprintf(" %v:%v", file, frame.Line)115		modified := append([]byte{}, line...)116		modified = replace(modified, match[5], match[5], []byte(info))117		if frame.Inline {118			// If frames are marked inline then show that in the report also.119			end := match[5] + len(info)120			modified = replace(modified, end, end, []byte(" [inline]"))121			modified = replace(modified, match[5], match[5], []byte(" "+frame.Func))122		}123		symbolized = append(symbolized, modified...)124	}125	return symbolized126}...

symbolize

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Hello, 世界")4}5import "fmt"6func main() {7    fmt.Println("Hello, 世界")8}9import "fmt"10func main() {11    fmt.Println("Hello, 世界")12}13import "fmt"14func main() {15    fmt.Println("Hello, 世界")16}17import "fmt"18func main() {19    fmt.Println("Hello, 世界")20}21import "fmt"22func main() {23    fmt.Println("Hello, 世界")24}25import "fmt"26func main() {27    fmt.Println("Hello, 世界")28}29import "fmt"30func main() {31    fmt.Println("Hello, 世界")32}33import "fmt"34func main() {35    fmt.Println("Hello, 世界")36}37import "fmt"38func main() {39    fmt.Println("Hello, 世界")40}41import "fmt"42func main() {43    fmt.Println("Hello, 世界")44}45import "fmt"46func main() {47    fmt.Println("Hello, 世界")48}

symbolize

Using AI Code Generation

1import (2func main() {3	wd, err := os.Getwd()4	if err != nil {5		fmt.Println(err)6	}7	prog := filepath.Base(os.Args[0])8	progPath := filepath.Join(wd, prog)9	progName := strings.TrimSuffix(prog, filepath.Ext(prog))10	progFilePath := filepath.Join(wd, progName+".go")11	_, line, _, _ := runtime.Caller(0)12	lineNo := fmt.Sprintf("%d", line+1)13	lineStr := fmt.Sprintf("%s:%s", progFilePath, lineNo)14	symCmd := fmt.Sprintf("addr2line -C -f -e %s %s", progPath, lineStr)15	out, err := exec.Command("sh", "-c", symCmd).Output()16	if err != nil {17		fmt.Println(err)18	}19	fmt.Println(string(out))20}

symbolize

Using AI Code Generation

1import java.io.File;2import java.io.FileNotFoundException;3import java.util.Scanner;4public class Symbolizer {5    public static void main(String[] args) {6        File file = new File("test.txt");7        try {8            Scanner scanner = new Scanner(file);9            while (scanner.hasNextLine()) {10                String line = scanner.nextLine();11                System.out.println(symbolize(line));12            }13        } catch (FileNotFoundException e) {14            e.printStackTrace();15        }16    }17    public static String symbolize(String line) {18        String[] words = line.split(" ");19        String symbolizedString = "";20        for (String word : words) {21            if (word.length() > 2) {22                symbolizedString += word.charAt(0) + String.valueOf(word.length() - 2) + word.charAt(word.length() - 1) + " ";23            } else {24                symbolizedString += word + " ";25            }26        }27        return symbolizedString;28    }29}

symbolize

Using AI Code Generation

1import (2func main() {3    s := symbolize.NewSymbolizer()4    output, err := s.Symbolize("hello world")5    if err != nil {6        fmt.Println("Error:", err)7    } else {8        fmt.Println("Output:", output)9    }10}11import (12func main() {13    s := symbolize.NewSymbolizer()14    output, err := s.Symbolize("hello world", symbolize.WithLanguage("en"), symbolize.WithFormat("png"), symbolize.WithWidth(200), symbolize.WithHeight(200))15    if err != nil {16        fmt.Println("Error:", err)17    } else {18        fmt.Println("Output:", output)19    }20}21import (22func main() {23    s := symbolize.NewSymbolizer()24    output, err := s.Symbolize("hello world", symbolize.WithLanguage("en"))25    if err != nil {26        fmt.Println("Error:", err)27    } else {28        fmt.Println("

symbolize

Using AI Code Generation

1import (2func main() {3	fmt.Println(demangle.Symbolize(errors.New("hello")))4}5import (6func main() {7	fmt.Println(demangle.Stacktrace(errors.New("hello")))8}9import (10func main() {11	fmt.Println(demangle.Stacktrace(errors.New("hello")))12}13import (14func main() {15	fmt.Println(demangle.Stacktrace(errors.New("hello")))16}

symbolize

Using AI Code Generation

1import (2func main() {3	f, _ := os.Create("2.go")4	defer f.Close()5	_, _, _, ok := runtime.Caller(0)6	if !ok {7		fmt.Println("error")8	}9	runtime.SetFinalizer(f, func(f *os.File) {10		debug.PrintStack()11	})12}13import (14func main() {15	f, _ := os.Create("3.go")16	defer f.Close()17	_, _, _, ok := runtime.Caller(0)18	if !ok {19		fmt.Println("error")20	}21	runtime.SetFinalizer(f, func(f *os.File) {22		debug.PrintStack()23	})24}25import (26func main() {27	f, _ := os.Create("4.go")28	defer f.Close()29	_, _, _, ok := runtime.Caller(0)30	if !ok {31		fmt.Println("error")32	}33	runtime.SetFinalizer(f, func(f *os.File) {34		debug.PrintStack()35	})36}37import (38func main() {39	f, _ := os.Create("5.go")40	defer f.Close()41	_, _, _, ok := runtime.Caller(0)42	if !ok {43		fmt.Println("error")44	}45	runtime.SetFinalizer(f, func(f *os.File) {46		debug.PrintStack()47	})48}49import (50func main() {51	f, _ := os.Create("6.go")52	defer f.Close()53	_, _, _, ok := runtime.Caller(0)54	if !ok {55		fmt.Println("error")56	}57	runtime.SetFinalizer(f, func(f *os.File) {58		debug.PrintStack()

symbolize

Using AI Code Generation

1import java.util.Scanner;2public class Symbolize {3public static void main(String[] args) {4Scanner input = new Scanner(System.in);5System.out.print("Enter a string: ");6String s = input.nextLine();7System.out.println("The string with symbols is " + symbolize(s));8}9public static String symbolize(String s) {10String result = "";11for (int i = 0; i < s.length(); i++) {12if (s.charAt(i) == 'a' || s.charAt(i) == 'e' ||13s.charAt(i) == 'i' || s.charAt(i) == 'o' ||14s.charAt(i) == 'u' || s.charAt(i) == 'A' ||15s.charAt(i) == 'E' || s.charAt(i) == 'I' ||16s.charAt(i) == 'O' || s.charAt(i) == 'U') {17result += "*";18}19else {20result += s.charAt(i);21}22}23return result;24}25}26import java.util.Scanner;27public class Symbolize {28public static void main(String[] args) {29Scanner input = new Scanner(System.in);30System.out.print("Enter a string: ");31String s = input.nextLine();32System.out.println("The string with symbols is " + symbolize(s));33}34public static String symbolize(String s) {35String result = "";36for (int i = 0; i < s.length(); i++) {37if (s.charAt(i) == 'a' || s.charAt(i) == 'e' ||38s.charAt(i) == 'i' || s.charAt(i) == 'o' ||39s.charAt(i) == 'u' || s.charAt(i) == 'A' ||40s.charAt(i) == 'E' || s.charAt(i) == 'I' ||41s.charAt(i) == 'O' || s.charAt(i) == 'U') {42result += "*";43}44else {45result += s.charAt(i);46}47}48return result;49}50}

symbolize

Using AI Code Generation

1import (2func TestSymbolize(t *testing.T) {3	symbolizer := NewSymbolizer()4	symbolizer.Symbolize()5}6import (7func TestSymbolize(t *testing.T) {8	symbolizer := NewSymbolizer()9	symbolizer.Symbolize()10}11import (12func TestSymbolize(t *testing.T) {13	symbolizer := NewSymbolizer()14	symbolizer.Symbolize()15}16import (17func TestSymbolize(t *testing.T) {18	symbolizer := NewSymbolizer()19	symbolizer.Symbolize()20}21import (22func TestSymbolize(t *testing.T) {23	symbolizer := NewSymbolizer()24	symbolizer.Symbolize()25}26import (27func TestSymbolize(t *testing.T) {28	symbolizer := NewSymbolizer()

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