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How to use archCallInsn method of backend Package

Best Syzkaller code snippet using backend.archCallInsn

dwarf.go

Source:dwarf.go

...438		cmd.Process.Kill()439		cmd.Wait()440	}()441	s := bufio.NewScanner(stdout)442	callInsns, traceFuncs := archCallInsn(target)443	for s.Scan() {444		if pc := parseLine(callInsns, traceFuncs, s.Bytes()); pc != 0 {445			pcs[0] = append(pcs[0], pc+mod.Addr)446		}447	}448	stderrOut, _ := ioutil.ReadAll(stderr)449	if err := cmd.Wait(); err != nil {450		return pcs, fmt.Errorf("failed to run objdump on %v: %v\n%s", mod.Path, err, stderrOut)451	}452	if err := s.Err(); err != nil {453		return pcs, fmt.Errorf("failed to run objdump on %v: %v\n%s", mod.Path, err, stderrOut)454	}455	return pcs, nil456}457func parseLine(callInsns, traceFuncs [][]byte, ln []byte) uint64 {458	pos := -1459	for _, callInsn := range callInsns {460		if pos = bytes.Index(ln, callInsn); pos != -1 {461			break462		}463	}464	if pos == -1 {465		return 0466	}467	hasCall := false468	for _, traceFunc := range traceFuncs {469		if hasCall = bytes.Contains(ln[pos:], traceFunc); hasCall {470			break471		}472	}473	if !hasCall {474		return 0475	}476	for len(ln) != 0 && ln[0] == ' ' {477		ln = ln[1:]478	}479	colon := bytes.IndexByte(ln, ':')480	if colon == -1 {481		return 0482	}483	pc, err := strconv.ParseUint(string(ln[:colon]), 16, 64)484	if err != nil {485		return 0486	}487	return pc488}489func archCallInsn(target *targets.Target) ([][]byte, [][]byte) {490	callName := [][]byte{[]byte(" <__sanitizer_cov_trace_pc>")}491	switch target.Arch {492	case targets.I386:493		// c1000102:       call   c10001f0 <__sanitizer_cov_trace_pc>494		return [][]byte{[]byte("\tcall ")}, callName495	case targets.ARM64:496		// ffff0000080d9cc0:       bl      ffff00000820f478 <__sanitizer_cov_trace_pc>497		return [][]byte{[]byte("\tbl\t")}, callName498	case targets.ARM:499		// 8010252c:       bl      801c3280 <__sanitizer_cov_trace_pc>500		return [][]byte{[]byte("\tbl\t")}, callName501	case targets.PPC64LE:502		// c00000000006d904:       bl      c000000000350780 <.__sanitizer_cov_trace_pc>503		// This is only known to occur in the test:...

elf.go

Source:elf.go

...378		cmd.Process.Kill()379		cmd.Wait()380	}()381	s := bufio.NewScanner(stdout)382	callInsns, traceFuncs := archCallInsn(target)383	for s.Scan() {384		if pc := parseLine(callInsns, traceFuncs, s.Bytes()); pc != 0 {385			pcs[0] = append(pcs[0], pc)386		}387	}388	stderrOut, _ := ioutil.ReadAll(stderr)389	if err := cmd.Wait(); err != nil {390		return pcs, fmt.Errorf("failed to run objdump on %v: %v\n%s", obj, err, stderrOut)391	}392	if err := s.Err(); err != nil {393		return pcs, fmt.Errorf("failed to run objdump on %v: %v\n%s", obj, err, stderrOut)394	}395	return pcs, nil396}397func parseLine(callInsns, traceFuncs [][]byte, ln []byte) uint64 {398	pos := -1399	for _, callInsn := range callInsns {400		if pos = bytes.Index(ln, callInsn); pos != -1 {401			break402		}403	}404	if pos == -1 {405		return 0406	}407	hasCall := false408	for _, traceFunc := range traceFuncs {409		if hasCall = bytes.Contains(ln[pos:], traceFunc); hasCall {410			break411		}412	}413	if !hasCall {414		return 0415	}416	for len(ln) != 0 && ln[0] == ' ' {417		ln = ln[1:]418	}419	colon := bytes.IndexByte(ln, ':')420	if colon == -1 {421		return 0422	}423	pc, err := strconv.ParseUint(string(ln[:colon]), 16, 64)424	if err != nil {425		return 0426	}427	return pc428}429func cleanPath(path, objDir, srcDir, buildDir string) (string, string) {430	filename := ""431	switch {432	case strings.HasPrefix(path, objDir):433		// Assume the file was built there.434		path = strings.TrimPrefix(path, objDir)435		filename = filepath.Join(objDir, path)436	case strings.HasPrefix(path, buildDir):437		// Assume the file was moved from buildDir to srcDir.438		path = strings.TrimPrefix(path, buildDir)439		filename = filepath.Join(srcDir, path)440	default:441		// Assume this is relative path.442		filename = filepath.Join(srcDir, path)443	}444	return strings.TrimLeft(filepath.Clean(path), "/\\"), filename445}446func archCallInsn(target *targets.Target) ([][]byte, [][]byte) {447	callName := [][]byte{[]byte(" <__sanitizer_cov_trace_pc>")}448	switch target.Arch {449	case targets.I386:450		// c1000102:       call   c10001f0 <__sanitizer_cov_trace_pc>451		return [][]byte{[]byte("\tcall ")}, callName452	case targets.ARM64:453		// ffff0000080d9cc0:       bl      ffff00000820f478 <__sanitizer_cov_trace_pc>454		return [][]byte{[]byte("\tbl\t")}, callName455	case targets.ARM:456		// 8010252c:       bl      801c3280 <__sanitizer_cov_trace_pc>457		return [][]byte{[]byte("\tbl\t")}, callName458	case targets.PPC64LE:459		// c00000000006d904:       bl      c000000000350780 <.__sanitizer_cov_trace_pc>460		// This is only known to occur in the test:...

archCallInsn

Using AI Code Generation

1import (2func main() {3	arch := new(x86.Arch)4	lsym := new(obj.LSym)5	prog := new(obj.Prog)6	lsym.P = make([]byte, 0)7	lsym.FuncInfo = new(objabi.FuncInfo)8	arch.ArchCallInsn(lsym, prog, 0)9	fmt.Println("P:", lsym.P)10	fmt.Println("Size:", lsym.Size)11}12import (13func main() {14	arch := new(x86.Arch)15	lsym := new(obj.LSym)16	prog := new(obj.Prog)17	lsym.P = make([]byte, 0)18	lsym.FuncInfo = new(objabi.FuncInfo)

archCallInsn

Using AI Code Generation

1import (2func main() {3	fmt.Println(unsafe.Pointer(&a))4}5import (6func main() {7	fmt.Println(unsafe.Pointer(&a))8}9import (10func main() {11	fmt.Println(unsafe.Pointer(&a))12}13import (14func main() {15	fmt.Println(unsafe.Pointer(&a))16}17import (18func main() {19	fmt.Println(unsafe.Pointer(&a))20}21import (22func main() {23	fmt.Println(unsafe.Pointer(&a))24}25import (26func main() {27	fmt.Println(unsafe.Pointer(&a))28}29import (30func main() {31	fmt.Println(unsafe.Pointer(&a))32}33import (34func main() {35	fmt.Println(unsafe.Pointer(&a))36}37import (38func main() {39	fmt.Println(unsafe.Pointer(&a))40}41import (

archCallInsn

Using AI Code Generation

1var arch = archObj.arch;2var archCallInsn = arch.archCallInsn;3var archCallInsn = archObj.archCallInsn;4var archCallInsn = archObj.archObj.archCallInsn;5var arch = archObj.arch;6var archCallInsn = arch.archCallInsn;7var archCallInsn = archObj.archCallInsn;8var archCallInsn = archObj.archObj.archCallInsn;9var arch = archObj.arch;10var archCallInsn = arch.archCallInsn;11var archCallInsn = archObj.archCallInsn;12var archCallInsn = archObj.archObj.archCallInsn;13var arch = archObj.arch;14var archCallInsn = arch.archCallInsn;15var archCallInsn = archObj.archCallInsn;16var archCallInsn = archObj.archObj.archCallInsn;17var arch = archObj.arch;18var archCallInsn = arch.archCallInsn;19var archCallInsn = archObj.archCallInsn;20var archCallInsn = archObj.archObj.archCallInsn;21var arch = archObj.arch;22var archCallInsn = arch.archCallInsn;23var archCallInsn = archObj.archCallInsn;24var archCallInsn = archObj.archObj.archCallInsn;25var arch = archObj.arch;26var archCallInsn = arch.archCallInsn;27var archCallInsn = archObj.archCallInsn;28var archCallInsn = archObj.archObj.archCallInsn;29var arch = archObj.arch;30var archCallInsn = arch.archCallInsn;31var archCallInsn = archObj.archCallInsn;32var archCallInsn = archObj.archObj.archCallInsn;33var arch = archObj.arch;34var archCallInsn = arch.archCallInsn;

archCallInsn

Using AI Code Generation

1import (2func main() {3	result = callAsm(a, b, c, x, y, z)4	fmt.Printf("Result is %d5}6func callAsm(a, b, c, x, y, z int) int7import (8func main() {9	result = callAsm(a, b, c, x, y, z)10	fmt.Printf("Result is %d11}12func callAsm(a, b, c, x, y, z int) int13import (14func main() {15	result = callAsm(a, b, c, x, y, z)16	fmt.Printf("Result is %d17}18func callAsm(a, b, c, x, y, z int) int19import (

archCallInsn

Using AI Code Generation

1import (2func main() {3  backend := llgo.NewBackend()4  archInsn := backend.ArchCallInsn(opcode)5  fmt.Println("Arch specific instruction for the given opcode is", archInsn)6}7import (8func main() {9  backend := llgo.NewBackend()10  archInsn := backend.ArchCallInsn(opcode)11  fmt.Println("Arch specific instruction for the given opcode is", archInsn)12}

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