How to use read method of symbolizer Package

Best Syzkaller code snippet using symbolizer.read

addr2liner_llvm.go

Source:addr2liner_llvm.go

...46func (a *llvmSymbolizerJob) write(s string) error {47	_, err := fmt.Fprintln(a.in, a.symType, s)48	return err49}50func (a *llvmSymbolizerJob) readLine() (string, error) {51	s, err := a.out.ReadString('\n')52	if err != nil {53		return "", err54	}55	return strings.TrimSpace(s), nil56}57// close releases any resources used by the llvmSymbolizer object.58func (a *llvmSymbolizerJob) close() {59	a.in.Close()60	a.cmd.Wait()61}62// newLlvmSymbolizer starts the given llvmSymbolizer command reporting63// information about the given executable file. If file is a shared64// library, base should be the address at which it was mapped in the65// program under consideration.66func newLLVMSymbolizer(cmd, file string, base uint64, isData bool) (*llvmSymbolizer, error) {67	if cmd == "" {68		cmd = defaultLLVMSymbolizer69	}70	j := &llvmSymbolizerJob{71		cmd:     exec.Command(cmd, "--inlining", "-demangle=false"),72		symType: "CODE",73	}74	if isData {75		j.symType = "DATA"76	}77	var err error78	if j.in, err = j.cmd.StdinPipe(); err != nil {79		return nil, err80	}81	outPipe, err := j.cmd.StdoutPipe()82	if err != nil {83		return nil, err84	}85	j.out = bufio.NewReader(outPipe)86	if err := j.cmd.Start(); err != nil {87		return nil, err88	}89	a := &llvmSymbolizer{90		filename: file,91		rw:       j,92		base:     base,93	}94	return a, nil95}96// readFrame parses the llvm-symbolizer output for a single address. It97// returns a populated plugin.Frame and whether it has reached the end of the98// data.99func (d *llvmSymbolizer) readFrame() (plugin.Frame, bool) {100	funcname, err := d.rw.readLine()101	if err != nil {102		return plugin.Frame{}, true103	}104	switch funcname {105	case "":106		return plugin.Frame{}, true107	case "??":108		funcname = ""109	}110	fileline, err := d.rw.readLine()111	if err != nil {112		return plugin.Frame{Func: funcname}, true113	}114	linenumber := 0115	// The llvm-symbolizer outputs the <file_name>:<line_number>:<column_number>.116	// When it cannot identify the source code location, it outputs "??:0:0".117	// Older versions output just the filename and line number, so we check for118	// both conditions here.119	if fileline == "??:0" || fileline == "??:0:0" {120		fileline = ""121	} else {122		switch split := strings.Split(fileline, ":"); len(split) {123		case 1:124			// filename125			fileline = split[0]126		case 2, 3:127			// filename:line , or128			// filename:line:disc , or129			fileline = split[0]130			if line, err := strconv.Atoi(split[1]); err == nil {131				linenumber = line132			}133		default:134			// Unrecognized, ignore135		}136	}137	return plugin.Frame{Func: funcname, File: fileline, Line: linenumber}, false138}139// addrInfo returns the stack frame information for a specific program140// address. It returns nil if the address could not be identified.141func (d *llvmSymbolizer) addrInfo(addr uint64) ([]plugin.Frame, error) {142	d.Lock()143	defer d.Unlock()144	if err := d.rw.write(fmt.Sprintf("%s 0x%x", d.filename, addr-d.base)); err != nil {145		return nil, err146	}147	var stack []plugin.Frame148	for {149		frame, end := d.readFrame()150		if end {151			break152		}153		if frame != (plugin.Frame{}) {154			stack = append(stack, frame)155		}156	}157	return stack, nil158}...

symbolizer.go

Source:symbolizer.go

...117		if _, err := fmt.Fprintf(input, "0x%x\n", pc); err != nil {118			return nil, err119		}120	}121	// Write an invalid PC so that parse doesn't block reading input.122	// We read out result for this PC at the end of the function.123	if _, err := fmt.Fprintf(input, "0xffffffffffffffff\n"); err != nil {124		return nil, err125	}126	input.Flush()127	if err := <-done; err != nil {128		return nil, err129	}130	return frames, nil131}132func parse(s *bufio.Scanner) ([]Frame, error) {133	pc, err := strconv.ParseUint(s.Text(), 0, 64)134	if err != nil {135		return nil, fmt.Errorf("failed to parse pc '%v' in addr2line output: %v", s.Text(), err)136	}137	var frames []Frame138	for {139		if !s.Scan() {140			break141		}142		ln := s.Text()143		if len(ln) > 3 && ln[0] == '0' && ln[1] == 'x' {144			break145		}146		fn := ln147		if !s.Scan() {148			err := s.Err()149			if err == nil {150				err = io.EOF151			}152			return nil, fmt.Errorf("failed to read file:line from addr2line: %v", err)153		}154		ln = s.Text()155		colon := strings.LastIndexByte(ln, ':')156		if colon == -1 {157			return nil, fmt.Errorf("failed to parse file:line in addr2line output: %v", ln)158		}159		lineEnd := colon + 1160		for lineEnd < len(ln) && ln[lineEnd] >= '0' && ln[lineEnd] <= '9' {161			lineEnd++162		}163		file := ln[:colon]164		line, err := strconv.Atoi(ln[colon+1 : lineEnd])165		if err != nil || fn == "" || fn == "??" || file == "" || file == "??" || line <= 0 {166			continue...

read

Using AI Code Generation

1import java.io.*;2import java.util.*;3import java.util.regex.*;4import java.lang.*;5import java.lang.reflect.*;6import java.lang.reflect.Method;7import java.lang.reflect.Constructor;8import java.lang.reflect.Field;9import java.lang.reflect.InvocationTargetException;10import java.lang.reflect.Modifier;11import java.net.*;12import java.net.URL;13import java.net.URLClassLoader;14{15  public static void main(String args[]) throws Exception16  {17    String s = "hello";18    System.out.println(s);19    Class c = Class.forName("java.lang.String");20    Method m = c.getMethod("charAt", new Class[]{int.class});21    m.setAccessible(true);22    Object ret = m.invoke(s, new Object[]{new Integer(0)});23    System.out.println(ret);24  }25}26import java.io.*;27import java.util.*;28import java.util.regex.*;29import java.lang.*;30import java.lang.reflect.*;31import java.lang.reflect.Method;32import java.lang.reflect.Constructor;33import java.lang.reflect.Field;34import java.lang.reflect.InvocationTargetException;35import java.lang.reflect.Modifier;36import java.net.*;37import java.net.URL;38import java.net.URLClassLoader;39{40  public static void main(String args[]) throws Exception41  {42    String s = "hello";43    System.out.println(s);44    Class c = Class.forName("java.lang.String");45    Method m = c.getMethod("charAt", new Class[]{int.class});46    m.setAccessible(true);47    Object ret = m.invoke(s, new Object[]{new Integer(0)});48    System.out.println(ret);49  }50}51import java.io.*;52import java.util.*;53import java.util.regex.*;54import java.lang.*;55import java.lang.reflect.*;56import java.lang.reflect.Method;57import java.lang.reflect.Constructor;58import java.lang.reflect.Field;59import java.lang.reflect.InvocationTargetException;60import java.lang.reflect.Modifier;61import java.net.*;62import java.net.URL;63import java.net.URLClassLoader;64{65  public static void main(String args[]) throws Exception66  {67    String s = "hello";68    System.out.println(s);69    Class c = Class.forName("java.lang.String");70    Method m = c.getMethod("charAt", new Class[]{int.class});71    m.setAccessible(true);72    Object ret = m.invoke(s, new Object

read

Using AI Code Generation

1import (2func main() {3	sym := symbolizer.NewSymbolizer()4	sym.Read("/tmp/symbols")5	sym.GetSymbol(0x401020)6	sym.GetSymbol(0x401021)7	sym.GetSymbol(0x401022)8	sym.GetSymbol(0x401023)9	sym.GetSymbol(0x401024)10	sym.GetSymbol(0x401025)11	sym.GetSymbol(0x401026)12	sym.GetSymbol(0x401027)13	sym.GetSymbol(0x401028)14	sym.GetSymbol(0x401029)15	sym.GetSymbol(0x40102a)16	sym.GetSymbol(0x40102b)17	sym.GetSymbol(0x40102c)18	sym.GetSymbol(0x40102d)19	sym.GetSymbol(0x40102e)20	sym.GetSymbol(0x40102f)21	sym.GetSymbol(0x401030)22	sym.GetSymbol(0x401031)23	sym.GetSymbol(0x401

read

Using AI Code Generation

1symbolizer = new Symbolizer();2symbolizer.read("c:\\path\\to\\symbolizer.xml");3symbolizer = new Symbolizer();4symbolizer.write("c:\\path\\to\\symbolizer.xml");5symbolizer = new Symbolizer();6symbolizer.read("c:\\path\\to\\symbolizer.xml");7symbol = new Symbol();8symbol = symbolizer.getSymbol("symbol_name");9symbolizer = new Symbolizer();10symbolizer.read("c:\\path\\to\\symbolizer.xml");11symbol = new Symbol();12symbol.setName("symbol_name");13symbol.setType("symbol_type");14symbol.setSize(10);15symbolizer.addSymbol(symbol);16symbolizer.write("c:\\path\\to\\symbolizer.xml");17symbolizer = new Symbolizer();18symbolizer.read("c:\\path\\to\\symbolizer.xml");19symbolizer.removeSymbol("symbol_name");20symbolizer.write("c:\\path\\to\\symbolizer.xml");21symbolizer = new Symbolizer();22symbolizer.read("c:\\path\\to

read

Using AI Code Generation

1import (2func main() {3	data, err := ioutil.ReadFile("1.go")4	if err != nil {5		fmt.Println("File reading error", err)6	}7	fmt.Println("Contents of file:", string(data))8}9import (10func main() {11	fmt.Println("Hello, World!")12}13import (14func main() {15	err := ioutil.WriteFile("2.go", []byte("package main16import (17func main() {18	fmt.Println(\"Hello, World!\")19}"), 0644)20	if err != nil {21		fmt.Println(err)22	}23}24import (25func main() {26	data, err := ioutil.ReadAll("1.go")27	if err != nil {28		fmt.Println("File reading error", err)29	}30	fmt.Println("Contents of file:", string(data))31}32import (33func main() {34	fmt.Println("Hello, World!")35}36import (

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