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How to use generateSyscalls method of csource Package

Best Syzkaller code snippet using csource.generateSyscalls

csource.go

Source:csource.go

...56		"MMAP_DATA":       strings.Join(mmapCalls, ""),57		"SYSCALL_DEFINES": ctx.generateSyscallDefines(),58		"SANDBOX_FUNC":    sandboxFunc,59		"RESULTS":         varsBuf.String(),60		"SYSCALLS":        ctx.generateSyscalls(calls, len(vars) != 0),61	}62	if !opts.Threaded && !opts.Repeat && opts.Sandbox == "" {63		// This inlines syscalls right into main for the simplest case.64		replacements["SANDBOX_FUNC"] = replacements["SYSCALLS"]65		replacements["SYSCALLS"] = "unused"66	}67	timeoutExpr := "45"68	for i, call := range p.Calls {69		if timeout := call.Meta.Attrs.Timeout; timeout != 0 {70			timeoutExpr += fmt.Sprintf(" + (call == %d ? %d : 0)", i, timeout)71		}72	}73	replacements["CALL_TIMEOUT"] = timeoutExpr74	result, err := createCommonHeader(p, mmapProg, replacements, opts)75	if err != nil {76		return nil, err77	}78	const header = "// autogenerated by syzkaller (https://github.com/google/syzkaller)\n\n"79	result = append([]byte(header), result...)80	result = ctx.postProcess(result)81	return result, nil82}83type context struct {84	p         *prog.Prog85	opts      Options86	target    *prog.Target87	sysTarget *targets.Target88	calls     map[string]uint64 // CallName -> NR89}90func (ctx *context) generateSyscalls(calls []string, hasVars bool) string {91	opts := ctx.opts92	buf := new(bytes.Buffer)93	if !opts.Threaded && !opts.Collide {94		if hasVars || opts.Trace {95			fmt.Fprintf(buf, "\tintptr_t res = 0;\n")96		}97		if opts.Repro {98			fmt.Fprintf(buf, "\tif (write(1, \"executing program\\n\", sizeof(\"executing program\\n\") - 1)) {}\n")99		}100		if opts.Trace {101			fmt.Fprintf(buf, "\tfprintf(stderr, \"### start\\n\");\n")102		}103		for _, c := range calls {104			fmt.Fprintf(buf, "%s", c)...

generateSyscalls

Using AI Code Generation

1import (2func main() {3	target, err := prog.GetTarget("linux", "amd64")4	if err != nil {5		fmt.Printf("Error: %v6	}7	p := &prog.Prog{8	}9	calls := p.Generate(10, 10)10	csource := syzprog2c.GenerateSyscalls(calls)11	fmt.Printf("%v", csource)12}

generateSyscalls

Using AI Code Generation

1import (2func main() {3	target, err := prog.GetTarget("linux", "amd64")4	if err != nil {5		fmt.Fprintf(os.Stderr, "failed to initialize target: %v6		os.Exit(1)7	}8	p := target.GenerateProgram()9	cs := csource.New(target)10	src, err := cs.Generate(p, "test")11	if err != nil {12		fmt.Fprintf(os.Stderr, "failed to generate C source: %v13		os.Exit(1)14	}15	fmt.Printf("%v", src)16}17	/usr/local/go/src/github.com/google/syzkaller/pkg/csource (from $GOROOT)18	/home/akshay/go/src/github.com/google/syzkaller/pkg/csource (from $GOPATH)19	/usr/local/go/src/github.com/google/syzkaller/prog (from $GOROOT)20	/home/akshay/go/src/github.com/google/syzkaller/prog (from $GOPATH)21	/usr/local/go/src/os (from $GOROOT)22	/home/akshay/go/src/os (fr

generateSyscalls

Using AI Code Generation

1import (2func main() {3	flag.Parse()4	if flag.NArg() != 1 {5		failf("usage: csource_test file.txt")6	}7	filename := flag.Arg(0)

generateSyscalls

Using AI Code Generation

1import (2func main() {3        target, err := prog.GetTarget("linux", "amd64")4        if err != nil {5                fmt.Fprintf(os.Stderr, "failed to create target: %v", err)6                os.Exit(1)7        }8        csource := csource.New(target)9        csource.GenerateSyscalls()10        csource.GenerateStructs()11        csource.GenerateConstants()12        csource.GenerateText()13        csource.GenerateText()

generateSyscalls

Using AI Code Generation

1import (2func main() {3	dir, err := os.Getwd()4	if err != nil {5		log.Fatal(err)6	}7	target, err := targets.Get(runtime.GOOS, runtime.GOARCH)8	if err != nil {9		log.Fatal(err)10	}11	csource := compiler.New(target)12	p := prog.InitTarget(target)13	syscalls, err := csource.GenerateSyscalls(p)14	if err != nil {15		log.Fatal(err)16	}17	err = ioutil.WriteFile(filepath.Join(dir, "syscalls.txt"), syscalls, 0644)18	if err != nil {19		log.Fatal(err)20	}21	fmt.Println("Successfully generated syscall table")22}

generateSyscalls

Using AI Code Generation

1import (2func main() {3	csource := prog.MakeTarget(targets.Linux)4	syscallCode := csource.GenerateSyscalls()5	f, err := os.Create("syscalls_linux.c")6	if err != nil {7		fmt.Println(err)8	}9	l, err := f.WriteString(syscallCode)10	if err != nil {11		fmt.Println(err)12		f.Close()13	}14	fmt.Println(l, "bytes written successfully")15	err = f.Close()16	if err != nil {17		fmt.Println(err)18	}19}

generateSyscalls

Using AI Code Generation

1import (2func main() {3	file, err := os.Open("syscalls.txt")4	if err != nil {5		fmt.Println(err)6	}7	defer file.Close()8	scanner := bufio.NewScanner(file)9	scanner.Split(bufio.ScanLines)10	for scanner.Scan() {11		syscalls = append(syscalls, scanner.Text())12	}13	var csource = Csource{syscalls: syscalls}14	csource.generateSyscalls()15	err = ioutil.WriteFile("2.c", []byte(csource.source), 0644)16	if err != nil {17		fmt.Println(err)18	}19	cmd := exec.Command("gcc", "2.c", "-o", "2")20	err = cmd.Run()21	if err != nil {22		fmt.Println(err)23	}24	cmd = exec.Command("./2")25	out, err := cmd.Output()26	if err != nil {27		fmt.Println(err)28	}29	fmt.Println(string(out))30}31type Csource struct {32}33func (c *Csource) generateSyscalls() {34	c.source += "int main(void){\n"35	for _, syscall := range c.syscalls {36		split := strings.Split(syscall, ",")37		syscallNumber, err := strconv.Atoi(split[0])38		if err != nil {39			fmt.Println(err)40		}41		c.source += fmt.Sprintf("\tprintf(\"%%d\\n\",%d);\n", syscallNumber)

generateSyscalls

Using AI Code Generation

1import (2func main() {3	target, err := prog.GetTarget("linux", "amd64")4	if err != nil {5		fmt.Println(err)6		os.Exit(1)7	}8	target.GenerateSyscalls("./sys/linux/amd64.txt")9}

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