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How to use Data method of prog Package

Best Syzkaller code snippet using prog.Data

asm.go

Source:asm.go

...174	nameAddr.Sym.Func().Text = prog175	prog.To.Val = int32(argSize)176	p.append(prog, "", true)177}178// asmData assembles a DATA pseudo-op.179// DATA masks<>+0x00(SB)/4, $0x00000000180func (p *Parser) asmData(operands [][]lex.Token) {181	if len(operands) != 2 {182		p.errorf("expect two operands for DATA")183		return184	}185	// Operand 0 has the general form foo<>+0x04(SB)/4.186	op := operands[0]187	n := len(op)188	if n < 3 || op[n-2].ScanToken != '/' || op[n-1].ScanToken != scanner.Int {189		p.errorf("expect /size for DATA argument")190		return191	}192	szop := op[n-1].String()193	sz, err := strconv.Atoi(szop)194	if err != nil {195		p.errorf("bad size for DATA argument: %q", szop)196	}197	op = op[:n-2]198	nameAddr := p.address(op)199	if !p.validSymbol("DATA", &nameAddr, true) {200		return201	}202	name := symbolName(&nameAddr)203	// Operand 1 is an immediate constant or address.204	valueAddr := p.address(operands[1])205	switch valueAddr.Type {206	case obj.TYPE_CONST, obj.TYPE_FCONST, obj.TYPE_SCONST, obj.TYPE_ADDR:207		// OK208	default:209		p.errorf("DATA value must be an immediate constant or address")210		return211	}212	// The addresses must not overlap. Easiest test: require monotonicity.213	if lastAddr, ok := p.dataAddr[name]; ok && nameAddr.Offset < lastAddr {214		p.errorf("overlapping DATA entry for %s", name)215		return216	}217	p.dataAddr[name] = nameAddr.Offset + int64(sz)218	switch valueAddr.Type {219	case obj.TYPE_CONST:220		switch sz {221		case 1, 2, 4, 8:222			nameAddr.Sym.WriteInt(p.ctxt, nameAddr.Offset, int(sz), valueAddr.Offset)223		default:224			p.errorf("bad int size for DATA argument: %d", sz)225		}226	case obj.TYPE_FCONST:227		switch sz {228		case 4:229			nameAddr.Sym.WriteFloat32(p.ctxt, nameAddr.Offset, float32(valueAddr.Val.(float64)))230		case 8:231			nameAddr.Sym.WriteFloat64(p.ctxt, nameAddr.Offset, valueAddr.Val.(float64))232		default:233			p.errorf("bad float size for DATA argument: %d", sz)234		}235	case obj.TYPE_SCONST:236		nameAddr.Sym.WriteString(p.ctxt, nameAddr.Offset, int(sz), valueAddr.Val.(string))237	case obj.TYPE_ADDR:238		if sz == p.arch.PtrSize {239			nameAddr.Sym.WriteAddr(p.ctxt, nameAddr.Offset, int(sz), valueAddr.Sym, valueAddr.Offset)240		} else {241			p.errorf("bad addr size for DATA argument: %d", sz)242		}243	}244}245// asmGlobl assembles a GLOBL pseudo-op.246// GLOBL shifts<>(SB),8,$256247// GLOBL shifts<>(SB),$256248func (p *Parser) asmGlobl(operands [][]lex.Token) {249	if len(operands) != 2 && len(operands) != 3 {250		p.errorf("expect two or three operands for GLOBL")251		return252	}253	// Operand 0 has the general form foo<>+0x04(SB).254	nameAddr := p.address(operands[0])255	if !p.validSymbol("GLOBL", &nameAddr, false) {256		return257	}258	next := 1259	// Next operand is the optional flag, a literal integer.260	var flag = int64(0)261	if len(operands) == 3 {262		flag = p.evalInteger("GLOBL", operands[1])263		next++264	}265	// Final operand is an immediate constant.266	addr := p.address(operands[next])267	if !p.validImmediate("GLOBL", &addr) {268		return269	}270	// log.Printf("GLOBL %s %d, $%d", name, flag, size)271	p.ctxt.Globl(nameAddr.Sym, addr.Offset, int(flag))272}273// asmPCData assembles a PCDATA pseudo-op.274// PCDATA $2, $705275func (p *Parser) asmPCData(operands [][]lex.Token) {276	if len(operands) != 2 {277		p.errorf("expect two operands for PCDATA")278		return279	}280	// Operand 0 must be an immediate constant.281	key := p.address(operands[0])282	if !p.validImmediate("PCDATA", &key) {283		return284	}285	// Operand 1 must be an immediate constant.286	value := p.address(operands[1])287	if !p.validImmediate("PCDATA", &value) {288		return289	}290	// log.Printf("PCDATA $%d, $%d", key.Offset, value.Offset)291	prog := &obj.Prog{292		Ctxt: p.ctxt,293		As:   obj.APCDATA,294		Pos:  p.pos(),295		From: key,296		To:   value,297	}298	p.append(prog, "", true)299}300// asmPCAlign assembles a PCALIGN pseudo-op.301// PCALIGN $16302func (p *Parser) asmPCAlign(operands [][]lex.Token) {303	if len(operands) != 1 {304		p.errorf("expect one operand for PCALIGN")305		return306	}307	// Operand 0 must be an immediate constant.308	key := p.address(operands[0])309	if !p.validImmediate("PCALIGN", &key) {310		return311	}312	prog := &obj.Prog{313		Ctxt: p.ctxt,314		As:   obj.APCALIGN,315		From: key,316	}317	p.append(prog, "", true)318}319// asmFuncData assembles a FUNCDATA pseudo-op.320// FUNCDATA $1, funcdata<>+4(SB)321func (p *Parser) asmFuncData(operands [][]lex.Token) {322	if len(operands) != 2 {323		p.errorf("expect two operands for FUNCDATA")324		return325	}326	// Operand 0 must be an immediate constant.327	valueAddr := p.address(operands[0])328	if !p.validImmediate("FUNCDATA", &valueAddr) {329		return330	}331	// Operand 1 is a symbol name in the form foo(SB).332	nameAddr := p.address(operands[1])333	if !p.validSymbol("FUNCDATA", &nameAddr, true) {334		return335	}...

ops_test.go

Source:ops_test.go

...17		prog: []byte{byte(OP_ADD)},18		want: Instruction{Op: OP_ADD, Len: 1},19	}, {20		prog: []byte{byte(OP_16)},21		want: Instruction{Op: OP_16, Data: []byte{16}, Len: 1},22	}, {23		prog: []byte{byte(OP_DATA_5), 1, 1, 1, 1, 1},24		want: Instruction{Op: OP_DATA_5, Data: []byte{1, 1, 1, 1, 1}, Len: 6},25	}, {26		prog: []byte{byte(OP_DATA_5), 1, 1, 1, 1, 1, 255},27		want: Instruction{Op: OP_DATA_5, Data: []byte{1, 1, 1, 1, 1}, Len: 6},28	}, {29		prog: []byte{byte(OP_PUSHDATA1), 1, 1},30		want: Instruction{Op: OP_PUSHDATA1, Data: []byte{1}, Len: 3},31	}, {32		prog: []byte{byte(OP_PUSHDATA1), 1, 1, 255},33		want: Instruction{Op: OP_PUSHDATA1, Data: []byte{1}, Len: 3},34	}, {35		prog: []byte{byte(OP_PUSHDATA2), 1, 0, 1},36		want: Instruction{Op: OP_PUSHDATA2, Data: []byte{1}, Len: 4},37	}, {38		prog: []byte{byte(OP_PUSHDATA2), 1, 0, 1, 255},39		want: Instruction{Op: OP_PUSHDATA2, Data: []byte{1}, Len: 4},40	}, {41		prog: []byte{byte(OP_PUSHDATA4), 1, 0, 0, 0, 1},42		want: Instruction{Op: OP_PUSHDATA4, Data: []byte{1}, Len: 6},43	}, {44		prog: []byte{byte(OP_PUSHDATA4), 1, 0, 0, 0, 1, 255},45		want: Instruction{Op: OP_PUSHDATA4, Data: []byte{1}, Len: 6},46	}, {47		prog:    []byte{},48		wantErr: ErrShortProgram,49	}, {50		prog:    []byte{byte(OP_0)},51		pc:      1,52		wantErr: ErrShortProgram,53	}, {54		prog:    []byte{byte(OP_DATA_1)},55		wantErr: ErrShortProgram,56	}, {57		prog:    []byte{byte(OP_PUSHDATA1)},58		wantErr: ErrShortProgram,59	}, {60		prog:    []byte{byte(OP_PUSHDATA1), 1},61		wantErr: ErrShortProgram,62	}, {63		prog:    []byte{byte(OP_PUSHDATA2)},64		wantErr: ErrShortProgram,65	}, {66		prog:    []byte{byte(OP_PUSHDATA2), 1, 0},67		wantErr: ErrShortProgram,68	}, {69		prog:    []byte{byte(OP_PUSHDATA4)},70		wantErr: ErrShortProgram,71	}, {72		prog:    []byte{byte(OP_PUSHDATA4), 1, 0, 0, 0},73		wantErr: ErrShortProgram,74	}, {75		pc:      71,76		prog:    []byte{0x6d, 0x6b, 0xaa, 0x20, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x20, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x0, 0x0, 0x4e, 0xff, 0xff, 0xff, 0xff, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30},77		wantErr: checked.ErrOverflow,78	}}79	for _, c := range cases {80		t.Run(fmt.Sprintf("%d: %x", c.pc, c.prog), func(t *testing.T) {81			got, gotErr := ParseOp(c.prog, c.pc)82			if errors.Root(gotErr) != c.wantErr {83				t.Errorf("ParseOp(%x, %d) error = %v want %v", c.prog, c.pc, gotErr, c.wantErr)84			}85			if c.wantErr != nil {86				return87			}88			if !testutil.DeepEqual(got, c.want) {89				t.Errorf("ParseOp(%x, %d) = %+v want %+v", c.prog, c.pc, got, c.want)90			}91		})92	}93}94func TestParseProgram(t *testing.T) {95	cases := []struct {96		prog    []byte97		want    []Instruction98		wantErr error99	}{100		{101			prog: []byte{byte(OP_2), byte(OP_3), byte(OP_ADD), byte(OP_5), byte(OP_NUMEQUAL)},102			want: []Instruction{103				{Op: OP_2, Data: []byte{0x02}, Len: 1},104				{Op: OP_3, Data: []byte{0x03}, Len: 1},105				{Op: OP_ADD, Len: 1},106				{Op: OP_5, Data: []byte{0x05}, Len: 1},107				{Op: OP_NUMEQUAL, Len: 1},108			},109		},110		{111			prog: []byte{255},112			want: []Instruction{113				{Op: 255, Len: 1},114			},115		},116	}117	for _, c := range cases {118		got, gotErr := ParseProgram(c.prog)119		if errors.Root(gotErr) != c.wantErr {120			t.Errorf("ParseProgram(%x) error = %v want %v", c.prog, gotErr, c.wantErr)121		}122		if c.wantErr != nil {123			continue124		}125		if !testutil.DeepEqual(got, c.want) {126			t.Errorf("ParseProgram(%x) = %+v want %+v", c.prog, got, c.want)127		}128	}129}130func TestIsPushData(t *testing.T) {131	cases := []struct {132		want    Instruction133		wantErr error134	}{135		{136			want: Instruction{Op: OP_16, Data: []byte{16}, Len: 1},137		},138		{139			want: Instruction{Op: OP_DATA_32, Data: []byte{16}, Len: 1},140		},141		{142			want: Instruction{Op: OP_FALSE, Data: []byte{}, Len: 1},143		},144		{145			want: Instruction{Op: OP_TRUE, Data: []byte{1}, Len: 1},146		},147		{148			want:    Instruction{Op: OP_JUMP, Data: []byte{0x00000000}, Len: 1},149			wantErr: ErrShortProgram,150		},151		{152			want:    Instruction{Op: OP_ADD, Data: []byte{0x12, 0x56}, Len: 2},153			wantErr: ErrShortProgram,154		},155	}156	for _, c := range cases {157		if c.want.IsPushdata() {158			t.Logf("check success")159		} else if c.wantErr != nil {160			t.Logf("check err success")161		} else {162			t.Errorf("check false: %v -- %v", reflect.ValueOf(ops[OP_1].fn), reflect.ValueOf(ops[c.want.Op].fn))163		}164	}165}...

Data

Using AI Code Generation

1func main() {2    p := prog.Data()3    fmt.Println(p)4}5func main() {6    p := prog.Data()7    fmt.Println(p)8}9func main() {10    p := prog.Data()11    fmt.Println(p)12}13func main() {14    p := prog.Data()15    fmt.Println(p)16}17func main() {18    p := prog.Data()19    fmt.Println(p)20}21func main() {22    p := prog.Data()23    fmt.Println(p)24}25func main() {26    p := prog.Data()27    fmt.Println(p)28}29func main() {30    p := prog.Data()31    fmt.Println(p)32}33func main() {34    p := prog.Data()35    fmt.Println(p)36}37func main() {38    p := prog.Data()39    fmt.Println(p)40}41func main() {42    p := prog.Data()43    fmt.Println(p)44}45func main() {46    p := prog.Data()47    fmt.Println(p)48}49func main() {50    p := prog.Data()51    fmt.Println(p)52}53func main() {54    p := prog.Data()55    fmt.Println(p)56}57func main() {58    p := prog.Data()59    fmt.Println(p)60}61func main()

Data

Using AI Code Generation

1import (2func main() {3    ac := accounting.Accounting{Symbol: "$", Precision: 2}4    fmt.Println(ac.FormatMoney(123456789.123456789))5}6import (7func main() {8    ac := accounting.Accounting{Symbol: "€", Precision: 2, Thousand: ".", Decimal: ","}9    fmt.Println(ac.FormatMoney(123456789.123456789))10}11import (12func main() {13    ac := accounting.Accounting{Symbol: "€", Precision: 2, Thousand: ".", Decimal: ","}14    fmt.Println(ac.FormatMoney(123456789.123456789))15}16import (17func main() {18    ac := accounting.Accounting{Symbol: "€", Precision: 2, Thousand: ".", Decimal: ","}19    fmt.Println(ac.FormatMoney(123456789.123456789))20}21import (22func main() {23    ac := accounting.Accounting{Symbol: "€", Precision: 2, Thousand: ".", Decimal: ","}24    fmt.Println(ac.FormatMoney(123456789.123456789))25}26import (27func main() {28    ac := accounting.Accounting{Symbol: "€

Data

Using AI Code Generation

1import (2func main() {3	p := prog.Prog{}4	fmt.Println(p.Data())5}6type Prog struct {7}8func (p *Prog) Data() string {9}10import "testing"11func TestProg(t *testing.T) {12	p := Prog{}13	if p.Data() != "Hello, World!" {14		t.Error("Data() did not return Hello, World!")15	}16}

Data

Using AI Code Generation

1import "fmt"2import "github.com/GoLangTraining/02_package/stringutil"3func main() {4	fmt.Println(stringutil.Reverse("!oG ,olleH"))5	fmt.Println(stringutil.MyName)6}7import "fmt"8import "github.com/GoLangTraining/02_package/icomefromalaska"9func main() {10	fmt.Println(icomefromalaska.Reverse("!oG ,olleH"))11	fmt.Println(icomefromalaska.MyName)12}13import "fmt"14import "github.com/GoLangTraining/02_package/stringutil"15func main() {16	fmt.Println(stringutil.Reverse("!oG ,olleH"))17	fmt.Println(stringutil.MyName)18}19import "fmt"20import "github.com/GoLangTraining/02_package/icomefromalaska"21func main() {22	fmt.Println(icomefromalaska.Reverse("!oG ,olleH"))23	fmt.Println(icomefromalaska.MyName)24}25import "fmt"26import "github.com/GoLangTraining/02_package/stringutil"27func main() {28	fmt.Println(stringutil.Reverse("!oG ,olleH"))29	fmt.Println(stringutil.MyName)30}31import "fmt"32import "github.com/GoLangTraining/02_package/icomefromalaska"33func main() {34	fmt.Println(icomefromalaska.Reverse("!oG ,olleH"))35	fmt.Println(icomefromalaska.MyName)36}37import "fmt"38import "github.com/GoLangTraining/02_package/stringutil"39func main() {40	fmt.Println(stringutil.Reverse("!oG ,olleH"))41	fmt.Println(stringutil.MyName)42}43import "fmt"44import "github.com/GoLangTraining/02_package/icomefromalaska"45func main() {46	fmt.Println(icomefromalaska.Reverse("!

Data

Using AI Code Generation

1import (2func main() {3	fmt.Println(prog.Data())4}5func Data() string {6}7import (8func main() {9	fmt.Println(prog.Data())10}

Data

Using AI Code Generation

1import (2func main() {3	fmt.Println("Data = ", prog.Data)4}5func main() {6}7The prog package is imported in the main package using th

Data

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println(p.data)4}5func (r receiver_type) function_name(parameters) return_type {6}7import "fmt"8type rect struct {9}10func (r rect) area() int {11}12func main() {13    r := rect{10, 20}14    fmt.Println(r.area())15}16import "fmt"17type rect struct {18}19func (r *rect) area() int {20}21func main() {22    r := rect{10, 20}23    fmt.Println(r.area())24    fmt.Println(r.width)25}

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