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Syzkaller
prog
generateParticularCall

How to use generateParticularCall method of prog Package

Best Syzkaller code snippet using prog.generateParticularCall

rand.go

Source:rand.go

...244	// Now we have a set of candidate calls that can create the necessary resource.245	for i := 0; i < 1e3; i++ {246		// Generate one of them.247		meta := metas[r.Intn(len(metas))]248		calls := r.generateParticularCall(s, meta)249		s1 := newState(r.target, s.ct)250		s1.analyze(calls[len(calls)-1])251		// Now see if we have what we want.252		var allres []Arg253		for kind1, res1 := range s1.resources {254			if r.target.isCompatibleResource(kind, kind1) {255				allres = append(allres, res1...)256			}257		}258		if len(allres) != 0 {259			// Bingo!260			arg := MakeResultArg(res, allres[r.Intn(len(allres))], 0)261			return arg, calls262		}263		// Discard unsuccessful calls.264		// Note: s.ma/va have already noted allocations of the new objects265		// in discarded syscalls, ideally we should recreate state266		// by analyzing the program again.267		for _, c := range calls {268			ForeachArg(c, func(arg Arg, _ *ArgCtx) {269				if a, ok := arg.(*ResultArg); ok && a.Res != nil {270					delete(*a.Res.(ArgUsed).Used(), arg)271				}272			})273		}274	}275	// Generally we can loop several times, e.g. when we choose a call that returns276	// the resource in an array, but then generateArg generated that array of zero length.277	// But we must succeed eventually.278	var ctors []string279	for _, meta := range metas {280		ctors = append(ctors, meta.Name)281	}282	panic(fmt.Sprintf("failed to create a resource %v with %v",283		res.Desc.Kind[0], strings.Join(ctors, ", ")))284}285func (r *randGen) generateText(kind TextKind) []byte {286	switch kind {287	case Text_arm64:288		// Just a stub, need something better.289		text := make([]byte, 50)290		for i := range text {291			text[i] = byte(r.Intn(256))292		}293		return text294	default:295		cfg := createIfuzzConfig(kind)296		return ifuzz.Generate(cfg, r.Rand)297	}298}299func (r *randGen) mutateText(kind TextKind, text []byte) []byte {300	switch kind {301	case Text_arm64:302		return mutateData(r, text, 40, 60)303	default:304		cfg := createIfuzzConfig(kind)305		return ifuzz.Mutate(cfg, r.Rand, text)306	}307}308func createIfuzzConfig(kind TextKind) *ifuzz.Config {309	cfg := &ifuzz.Config{310		Len:  10,311		Priv: true,312		Exec: true,313		MemRegions: []ifuzz.MemRegion{314			{0 << 12, 1 << 12},315			{1 << 12, 1 << 12},316			{2 << 12, 1 << 12},317			{3 << 12, 1 << 12},318			{4 << 12, 1 << 12},319			{5 << 12, 1 << 12},320			{6 << 12, 1 << 12},321			{7 << 12, 1 << 12},322			{8 << 12, 1 << 12},323			{9 << 12, 1 << 12},324			{0xfec00000, 0x100}, // ioapic325		},326	}327	switch kind {328	case Text_x86_real:329		cfg.Mode = ifuzz.ModeReal16330	case Text_x86_16:331		cfg.Mode = ifuzz.ModeProt16332	case Text_x86_32:333		cfg.Mode = ifuzz.ModeProt32334	case Text_x86_64:335		cfg.Mode = ifuzz.ModeLong64336	}337	return cfg338}339// nOutOf returns true n out of outOf times.340func (r *randGen) nOutOf(n, outOf int) bool {341	if n <= 0 || n >= outOf {342		panic("bad probability")343	}344	v := r.Intn(outOf)345	return v < n346}347func (r *randGen) generateCall(s *state, p *Prog) []*Call {348	idx := 0349	if s.ct == nil {350		idx = r.Intn(len(r.target.Syscalls))351	} else {352		// å¦æp.callä¸ºç©ºï¼é£ä¹éæºéæ©ä¸ä¸ªå½æ°ï¼å¦åä»ç°æçå½æ°ä¸éæºéæ©ä¸ä¸ªå½æ°ï¼353		// æ ¹æ®è¿ä¸ªå½æ°çä¼åçº§åè¡¨éæºçæå½æ°ï¼354		call := -1355		if len(p.Calls) != 0 {356			call = p.Calls[r.Intn(len(p.Calls))].Meta.ID357		}358		idx = s.ct.Choose(r.Rand, call)359	}360	meta := r.target.Syscalls[idx]361	return r.generateParticularCall(s, meta)362}363func (r *randGen) myGenerateCall(s *state, p *Prog) []*Call {364	idx := 0365	if s.ct == nil {366		idx = r.Intn(len(r.target.Syscalls))367	} else {368		// å¦æp.callä¸ºç©ºï¼é£ä¹éæºéæ©ä¸ä¸ªå½æ°ï¼å¦åä»ç°æçå½æ°ä¸éæºéæ©ä¸ä¸ªå½æ°ï¼369		// æ ¹æ®è¿ä¸ªå½æ°çä¼åçº§åè¡¨éæºçæå½æ°ï¼370		call := -1371		if len(p.Calls) != 0 {372			// éæ©æåä¸ä¸ªå½æ°373			call = p.Calls[len(p.Calls)-1].Meta.ID374		}375		// å¨ä¸º0ï¼éæ°éæ©å½æ°376		if call != -1 && s.ct.run[call][len(r.target.Syscalls)-1] == 0 {377			call = -1378		}379		// ä»éæ©çå½æ°ä¸éæ©ä¸ä¸ä¸ªå½æ°çä¸æ 380		idx = s.ct.MyChoose(r.Rand, call)381	}382	meta := r.target.Syscalls[idx]383	return r.generateParticularCall(s, meta)384}385func (r *randGen) generateParticularCall(s *state, meta *Syscall) (calls []*Call) {386	c := &Call{387		Meta: meta,388		Ret:  MakeReturnArg(meta.Ret),389	}390	c.Args, calls = r.generateArgs(s, meta.Args)391	r.target.assignSizesCall(c)392	calls = append(calls, c)393	for _, c1 := range calls {394		r.target.SanitizeCall(c1)395	}396	return calls397}398// GenerateAllSyzProg generates a program that contains all pseudo syz_ calls for testing.399func (target *Target) GenerateAllSyzProg(rs rand.Source) *Prog {400	p := &Prog{401		Target: target,402	}403	r := newRand(target, rs)404	s := newState(target, nil)405	handled := make(map[string]bool)406	for _, meta := range target.Syscalls {407		if !strings.HasPrefix(meta.CallName, "syz_") || handled[meta.CallName] {408			continue409		}410		handled[meta.CallName] = true411		calls := r.generateParticularCall(s, meta)412		for _, c := range calls {413			s.analyze(c)414			p.Calls = append(p.Calls, c)415		}416	}417	if err := p.validate(); err != nil {418		panic(err)419	}420	return p421}422// GenerateSimpleProg generates the simplest non-empty program for testing423// (e.g. containing a single mmap).424func (target *Target) GenerateSimpleProg() *Prog {425	return &Prog{...

any_test.go

Source:any_test.go

...21			continue22		}23		for i := 0; i < iters; i++ {24			s := newState(target, ct, nil)25			calls := r.generateParticularCall(s, meta)26			p := &Prog{Target: target, Calls: calls}27			for _, arg := range p.complexPtrs() {28				compl[arg.Res.Type().String()] = true29			}30		}31	}32	var arr []string33	for id := range compl {34		arr = append(arr, id)35	}36	sort.Strings(arr)37	t.Log("complex types:\n" + strings.Join(arr, "\n"))38}39func TestSquash(t *testing.T) {...

generation.go

Source:generation.go

...37	s := newState(target, ct, corpus)38	for _, c := range p.Calls[:insertPos] {39		s.analyze(c)40	}41	calls := r.generateParticularCall(s, meta)42	for _, c := range calls {43		s.analyze(c)44	}45	// trim the rest46	// for _, c := range p.Calls[insertPos:len(p.Calls)] {47	// 	s.analyze(c)48	// 	calls = append(calls, c)49	// }50	p.Calls = append(p.Calls[:insertPos], calls...)51	p.sanitizeFix()52	p.debugValidate()53	return p54}55func (target *Target) GenerateValidProgram2(rs rand.Source, meta *Syscall, ct *ChoiceTable) *Prog {56	p := &Prog{57		Target: target,58	}59	r := newRand(target, rs)60	r.generate = true61	s := newState(target, ct, nil)62	calls := r.generateParticularCall(s, meta)63	for _, c := range calls {64		s.analyze(c)65		p.Calls = append(p.Calls, c)66	}67	p.sanitizeFix()68	p.debugValidate()69	return p70}...

generateParticularCall

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println(prog.generateParticularCall())4}5import "fmt"6func main() {7    fmt.Println(prog.generateParticularCall())8}9import "fmt"10func main() {11    fmt.Println(prog.generateParticularCall())12}13import "fmt"14func main() {15    fmt.Println(prog.generateParticularCall())16}17import "fmt"18func main() {19    fmt.Println(prog.generateParticularCall())20}21import "fmt"22func main() {23    fmt.Println(prog.generateParticularCall())24}25import "fmt"26func main() {27    fmt.Println(prog.generateParticularCall())28}29import "fmt"30func main() {31    fmt.Println(prog.generateParticularCall())32}33import "fmt"34func main() {35    fmt.Println(prog.generateParticularCall())36}37import "fmt"38func main() {39    fmt.Println(prog.generateParticularCall())40}41import "fmt"42func main() {43    fmt.Println(prog.generateParticularCall())44}45import "fmt"46func main() {47    fmt.Println(prog.generateParticularCall())48}49import "fmt

generateParticularCall

Using AI Code Generation

1import (2func main() {3prog.GenerateParticularCall()4}5import (6func main() {7prog.GenerateParticularCall()8}9import (10func GenerateParticularCall() {11fmt.Println("GenerateParticularCall")12}

generateParticularCall

Using AI Code Generation

1import (2func main() {3	prog := NewProg()4	prog.generateParticularCall(2)5}6import (7type Prog struct {8}9func NewProg() *Prog {10	return &Prog{}11}12func (p *Prog) generateParticularCall(a int) {13	fmt.Println(a)14}

generateParticularCall

Using AI Code Generation

1func main() {2    prog.generateParticularCall("test", "test", "test", "test", "test")3}4func main() {5    prog.generateParticularCall("test", "test", "test", "test", "test")6}7func main() {8    prog.generateParticularCall("test", "test", "test", "test", "test")9}10func main() {11    prog.generateParticularCall("test", "test", "test", "test", "test")12}13func main() {14    prog.generateParticularCall("test", "test", "test", "test", "test")15}16func main() {17    prog.generateParticularCall("test", "test", "test", "test", "test")18}19func main() {20    prog.generateParticularCall("test", "test", "test", "test", "test")21}22func main() {23    prog.generateParticularCall("test", "test", "test", "test", "test")24}25func main() {26    prog.generateParticularCall("test", "test", "test", "test", "test")27}28func main() {29    prog.generateParticularCall("test", "test", "test", "test", "test")

generateParticularCall

Using AI Code Generation

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

generateParticularCall

Using AI Code Generation

1func generateParticularCall(prog *ssa.Program, methodName string, paramCount int) *ssa.Function {2    mainPkg := prog.Package(prog.Created[0].Pkg.Pkg)3    mainFunc := mainPkg.Func("main")4    mainBody := mainFunc.Blocks[0].Instrs[0].(*ssa.Call).Common().Value.(*ssa.Function).Blocks[0]5    for _, instr := range mainBody.Instrs {6        if call, ok := instr.(*ssa.Call); ok {7            method := call.Common().Value.(*ssa.Function)8            if method.Name() == methodName {9                if len(method.Params) == paramCount {10                }11            }12        }13    }14}15func generateParticularCall(prog *ssa.Program, methodName string, paramCount int) *ssa.Function {16    mainPkg := prog.Package(prog.Created[0].Pkg.Pkg)17    mainFunc := mainPkg.Func("main")18    mainBody := mainFunc.Blocks[0].Instrs[0].(*ssa.Call).Common().Value.(*ssa.Function).Blocks[0]19    for _, instr := range mainBody.Instrs {

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