Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

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 (

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.