How to use makeDWARF method of backend Package

Best Syzkaller code snippet using backend.makeDWARF

mach-o.go

Source:mach-o.go

...11	"github.com/google/syzkaller/sys/targets"12)13func makeMachO(target *targets.Target, objDir, srcDir, buildDir string,14	moduleObj []string, hostModules []host.KernelModule) (*Impl, error) {15	return makeDWARF(target, objDir, srcDir, buildDir, moduleObj, hostModules,16		&containerFns{17			readSymbols:           machoReadSymbols,18			readTextData:          machoReadTextData,19			readModuleCoverPoints: machoReadModuleCoverPoints,20			readTextRanges:        machoReadTextRanges,21		},22	)23}24func machoReadSymbols(module *Module, info *symbolInfo) ([]*Symbol, error) {25	file, err := macho.Open(module.Path)26	if err != nil {27		return nil, err28	}29	text := file.Section("__text")...

makeDWARF

Using AI Code Generation

1import (2func main() {3	file, err := elf.Open(os.Args[1])4	if err != nil {5		fmt.Println(err)6	}7	defer file.Close()8	dwarf, err := file.DWARF()9	if err != nil {10		fmt.Println(err)11	}12	gosymtab, err := gosym.NewTable(dwarf)13	if err != nil {14		fmt.Println(err)15	}16	fmt.Println(gosymtab.LookupFunc(0x4005d0))17}18{main.main 0x4005d0}

makeDWARF

Using AI Code Generation

1import "fmt"2type backend interface {3    makeDWARF() error4}5type backend1 struct{}6func (b *backend1) makeDWARF() error {7    fmt.Println("backend1")8}9type backend2 struct{}10func (b *backend2) makeDWARF() error {11    fmt.Println("backend2")12}13func main() {14    b = &backend1{}15    b.makeDWARF()16    b = &backend2{}17    b.makeDWARF()18}19import "fmt"20type backend interface {21    makeDWARF() error22}23type backend1 struct{}24func (b *backend1) makeDWARF() error {25    fmt.Println("backend1")26}27type backend2 struct{}28func (b *backend2) makeDWARF() error {29    fmt.Println("backend2")30}31func main() {32    b = &backend1{}33    b.makeDWARF()34    b = &backend2{}35    b.makeDWARF()36}37import "fmt"38type backend interface {39    makeDWARF() error40}41type backend1 struct{}42func (b *backend1) makeDWARF() error {43    fmt.Println("backend1")44}45type backend2 struct{}46func (b *backend2) makeDWARF() error {47    fmt.Println("backend2")48}49func main() {50    b = &backend1{}51    b.makeDWARF()52    b = &backend2{}53    b.makeDWARF()54}55import "fmt"56type backend interface {57    makeDWARF() error58}59type backend1 struct{}60func (b *backend1) makeDWARF() error {61    fmt.Println("backend1")62}63type backend2 struct{}64func (b *backend2) makeDWARF() error {65    fmt.Println("backend2")

makeDWARF

Using AI Code Generation

1import (2func main() {3	f, err := elf.Open(os.Args[1])4	if err != nil {5		panic(err)6	}7	defer f.Close()8	dwarf, err := f.DWARF()9	if err != nil {10		panic(err)11	}12	syms, err := f.Symbols()13	if err != nil {14		panic(err)15	}16	lines, err := f.LineTable()17	if err != nil {18		panic(err)19	}20	pclntab, err := f.Section(".gopclntab").Data()21	if err != nil {22		panic(err)23	}24	gosymtab, err := gosym.NewTable(pclntab)25	if err != nil {26		panic(err)27	}28	pc := uint64(0x4010c0)29	fn := gosymtab.PCToFunc(pc)30	if fn == nil {31		panic("function not found")32	}33	file, line := fn.FileLine(pc)34	fmt.Printf("%s:%d35	pc, err = fn.PCLine(line)36	if err != nil {37		panic(err)38	}39	var (40	rdr := dwarf.Reader()41	for {42		entry, err := rdr.Next()43		if err != nil {44			panic(err)45		}46		if entry == nil {47		}48		if entry.Tag != dwarf.TagSubprogram {49		}50		for {51			attr, err := rdr.Attr()52			if err != nil {53				panic(err)54			}55			if attr == nil {

makeDWARF

Using AI Code Generation

1        0x0000 00000 (1.go:1)       TEXT    "".main(SB), ABIInternal, $0-02        0x0000 00000 (1.go:1)       FUNCDATA        $0, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)3        0x0000 00000 (1.go:1)       FUNCDATA        $1, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)4        0x0000 00000 (1.go:1)       FUNCDATA        $2, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)5        0x0000 00000 (1.go:1)       FUNCDATA        $3, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)6        0x0000 00000 (1.go:1)       FUNCDATA        $4, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)7        0x0000 00000 (1.go:3)       MOVQ    "".b+24(SP), AX8        0x0005 00005 (1.go:3)       MOVQ    "".a+16(SP), CX9        0x000a 00010 (1.go:3)       MOVQ    "".c+32(SP), DX10        0x000f 00015 (1.go:3)       MOVQ    "".d+40(SP), SI11        0x0014 00020 (1.go:3)       MOVQ

makeDWARF

Using AI Code Generation

1import (2func main() {3	f, err := elf.Open("test")4	if err != nil {5		fmt.Println(err)6	}7	sec := f.Section(".debug_info")8	if sec == nil {9		fmt.Println("Section not found")10	}11	data, err := sec.Data()12	if err != nil {13		fmt.Println(err)14	}15	dwarf, err := elf.NewDWARF(data)16	if err != nil {17		fmt.Println(err)

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