How to use InitTarget method of akaros Package

Best Syzkaller code snippet using akaros.InitTarget

targets.go

Source:targets.go

1// Copyright 2017 syzkaller project authors. All rights reserved.2// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.3package targets4import (5	"os"6	"os/exec"7	"runtime"8	"strings"9	"sync"10)11type Target struct {12	init sync.Once13	osCommon14	OS               string15	Arch             string16	VMArch           string // e.g. amd64 for 386, or arm64 for arm17	PtrSize          uint6418	PageSize         uint6419	NumPages         uint6420	DataOffset       uint6421	CFlags           []string22	CrossCFlags      []string23	CCompilerPrefix  string24	CCompiler        string25	KernelArch       string26	KernelHeaderArch string27	// NeedSyscallDefine is used by csource package to decide when to emit __NR_* defines.28	NeedSyscallDefine func(nr uint64) bool29}30type osCommon struct {31	// Does the OS use syscall numbers (e.g. Linux) or has interface based on functions (e.g. fuchsia).32	SyscallNumbers bool33	// E.g. "__NR_" or "SYS_".34	SyscallPrefix string35	// ipc<->executor communication tuning.36	// If ExecutorUsesShmem, programs and coverage are passed through shmem, otherwise via pipes.37	ExecutorUsesShmem bool38	// If ExecutorUsesForkServer, executor uses extended protocol with handshake.39	ExecutorUsesForkServer bool40	// Extension of executable files (notably, .exe for windows).41	ExeExtension string42}43func Get(OS, arch string) *Target {44	target := List[OS][arch]45	if target == nil {46		return nil47	}48	target.init.Do(func() {49		checkStaticBuild(target)50	})51	return target52}53// nolint: lll54var List = map[string]map[string]*Target{55	"test": {56		"64": {57			PtrSize:     8,58			PageSize:    4 << 10,59			CFlags:      []string{"-m64"},60			CrossCFlags: []string{"-m64", "-static"},61			osCommon: osCommon{62				SyscallNumbers:         true,63				SyscallPrefix:          "SYS_",64				ExecutorUsesShmem:      false,65				ExecutorUsesForkServer: false,66			},67		},68		"64_fork": {69			PtrSize:     8,70			PageSize:    8 << 10,71			CFlags:      []string{"-m64"},72			CrossCFlags: []string{"-m64", "-static"},73			osCommon: osCommon{74				SyscallNumbers:         true,75				SyscallPrefix:          "SYS_",76				ExecutorUsesShmem:      false,77				ExecutorUsesForkServer: true,78			},79		},80		"32_shmem": {81			PtrSize:     4,82			PageSize:    8 << 10,83			CFlags:      []string{"-m32"},84			CrossCFlags: []string{"-m32", "-static"},85			osCommon: osCommon{86				SyscallNumbers:         true,87				SyscallPrefix:          "SYS_",88				ExecutorUsesShmem:      true,89				ExecutorUsesForkServer: false,90			},91		},92		"32_fork_shmem": {93			PtrSize:     4,94			PageSize:    4 << 10,95			CFlags:      []string{"-m32"},96			CrossCFlags: []string{"-m32", "-static"},97			osCommon: osCommon{98				SyscallNumbers:         true,99				SyscallPrefix:          "SYS_",100				ExecutorUsesShmem:      true,101				ExecutorUsesForkServer: true,102			},103		},104	},105	"linux": {106		"amd64": {107			PtrSize:          8,108			PageSize:         4 << 10,109			CFlags:           []string{"-m64"},110			CrossCFlags:      []string{"-m64", "-static"},111			CCompilerPrefix:  "x86_64-linux-gnu-",112			KernelArch:       "x86_64",113			KernelHeaderArch: "x86",114			NeedSyscallDefine: func(nr uint64) bool {115				// Only generate defines for new syscalls116				// (added after commit 8a1ab3155c2ac on 2012-10-04).117				return nr >= 313118			},119		},120		"386": {121			VMArch:           "amd64",122			PtrSize:          4,123			PageSize:         4 << 10,124			CFlags:           []string{"-m32"},125			CrossCFlags:      []string{"-m32", "-static"},126			CCompilerPrefix:  "x86_64-linux-gnu-",127			KernelArch:       "i386",128			KernelHeaderArch: "x86",129		},130		"arm64": {131			PtrSize:          8,132			PageSize:         4 << 10,133			CrossCFlags:      []string{"-static"},134			CCompilerPrefix:  "aarch64-linux-gnu-",135			KernelArch:       "arm64",136			KernelHeaderArch: "arm64",137		},138		"arm": {139			VMArch:           "arm64",140			PtrSize:          4,141			PageSize:         4 << 10,142			CFlags:           []string{"-D__LINUX_ARM_ARCH__=6", "-m32", "-D__ARM_EABI__"},143			CrossCFlags:      []string{"-D__LINUX_ARM_ARCH__=6", "-march=armv6t2", "-static"},144			CCompilerPrefix:  "arm-linux-gnueabihf-",145			KernelArch:       "arm",146			KernelHeaderArch: "arm",147		},148		"ppc64le": {149			PtrSize:          8,150			PageSize:         4 << 10,151			CFlags:           []string{"-D__powerpc64__"},152			CrossCFlags:      []string{"-D__powerpc64__", "-static"},153			CCompilerPrefix:  "powerpc64le-linux-gnu-",154			KernelArch:       "powerpc",155			KernelHeaderArch: "powerpc",156		},157	},158	"freebsd": {159		"amd64": {160			PtrSize:     8,161			PageSize:    4 << 10,162			CFlags:      []string{"-m64"},163			CrossCFlags: []string{"-m64", "-static"},164		},165	},166	"netbsd": {167		"amd64": {168			PtrSize:     8,169			PageSize:    4 << 10,170			CFlags:      []string{"-m64"},171			CrossCFlags: []string{"-m64", "-static"},172		},173	},174	"fuchsia": {175		"amd64": {176			PtrSize:          8,177			PageSize:         4 << 10,178			KernelHeaderArch: "x64",179			CCompiler:        os.ExpandEnv("${SOURCEDIR}/buildtools/linux-x64/clang/bin/clang++"),180			CrossCFlags: []string{181				"-Wno-deprecated",182				"-Wno-error",183				"--target=x86_64-fuchsia",184				"-lfdio",185				"-lzircon",186				"-ldriver",187				"--sysroot", os.ExpandEnv("${SOURCEDIR}/out/build-zircon/build-x64/sysroot"),188				"-L", os.ExpandEnv("${SOURCEDIR}/out/x64/x64-shared"),189				"-L", os.ExpandEnv("${SOURCEDIR}/out/x64/sdks/zircon_sysroot/arch/x64/sysroot/lib"),190				"-L", os.ExpandEnv("${SOURCEDIR}/out/build-zircon/build-x64/system/ulib/driver"),191			},192		},193		"arm64": {194			PtrSize:          8,195			PageSize:         4 << 10,196			KernelHeaderArch: "arm64",197			CCompiler:        os.ExpandEnv("${SOURCEDIR}/buildtools/linux-x64/clang/bin/clang++"),198			CrossCFlags: []string{199				"-Wno-deprecated",200				"-Wno-error",201				"--target=aarch64-fuchsia",202				"-lfdio",203				"-lzircon",204				"-ldriver",205				"--sysroot", os.ExpandEnv("${SOURCEDIR}/out/build-zircon/build-arm64/sysroot"),206				"-L", os.ExpandEnv("${SOURCEDIR}/out/arm64/arm64-shared"),207				"-L", os.ExpandEnv("${SOURCEDIR}/out/arm64/sdks/zircon_sysroot/arch/arm64/sysroot/lib"),208				"-L", os.ExpandEnv("${SOURCEDIR}/out/build-zircon/build-arm64/system/ulib/driver"),209			},210		},211	},212	"windows": {213		"amd64": {214			PtrSize: 8,215			// TODO(dvyukov): what should we do about 4k vs 64k?216			PageSize: 4 << 10,217		},218	},219	"akaros": {220		"amd64": {221			PtrSize:           8,222			PageSize:          4 << 10,223			KernelHeaderArch:  "x86",224			NeedSyscallDefine: dontNeedSyscallDefine,225			CCompiler:         os.ExpandEnv("${SOURCEDIR}/toolchain/x86_64-ucb-akaros-gcc/bin/x86_64-ucb-akaros-g++"),226			CrossCFlags: []string{227				"-static",228			},229		},230	},231}232var oses = map[string]osCommon{233	"linux": {234		SyscallNumbers:         true,235		SyscallPrefix:          "__NR_",236		ExecutorUsesShmem:      true,237		ExecutorUsesForkServer: true,238	},239	"freebsd": {240		SyscallNumbers:         true,241		SyscallPrefix:          "SYS_",242		ExecutorUsesShmem:      true,243		ExecutorUsesForkServer: true,244	},245	"netbsd": {246		SyscallNumbers:         true,247		SyscallPrefix:          "SYS_",248		ExecutorUsesShmem:      true,249		ExecutorUsesForkServer: true,250	},251	"fuchsia": {252		SyscallNumbers:         false,253		ExecutorUsesShmem:      false,254		ExecutorUsesForkServer: false,255	},256	"windows": {257		SyscallNumbers:         false,258		ExecutorUsesShmem:      false,259		ExecutorUsesForkServer: false,260		ExeExtension:           ".exe",261	},262	"akaros": {263		SyscallNumbers:         true,264		SyscallPrefix:          "SYS_",265		ExecutorUsesShmem:      false,266		ExecutorUsesForkServer: true,267	},268}269func init() {270	for OS, archs := range List {271		for arch, target := range archs {272			initTarget(target, OS, arch)273		}274	}275}276func initTarget(target *Target, OS, arch string) {277	if common, ok := oses[OS]; ok {278		target.osCommon = common279	}280	target.OS = OS281	target.Arch = arch282	if target.NeedSyscallDefine == nil {283		target.NeedSyscallDefine = needSyscallDefine284	}285	target.DataOffset = 512 << 20286	target.NumPages = (16 << 20) / target.PageSize287	if OS == runtime.GOOS && arch == runtime.GOARCH {288		// Don't use cross-compiler for native compilation, there are cases when this does not work:289		// https://github.com/google/syzkaller/pull/619290		// https://github.com/google/syzkaller/issues/387291		// https://github.com/google/syzkaller/commit/06db3cec94c54e1cf720cdd5db72761514569d56292		target.CCompilerPrefix = ""293	}294	if target.CCompiler == "" {295		target.CCompiler = target.CCompilerPrefix + "gcc"296	}297}298func checkStaticBuild(target *Target) {299	for i, flag := range target.CrossCFlags {300		if flag == "-static" {301			// Some distributions don't have static libraries.302			if !supportsStatic(target) {303				copy(target.CrossCFlags[i:], target.CrossCFlags[i+1:])304				target.CrossCFlags = target.CrossCFlags[:len(target.CrossCFlags)-1]305			}306			break307		}308	}309}310func supportsStatic(target *Target) bool {311	cmd := exec.Command(target.CCompiler, "-x", "c", "-", "-o", "/dev/null", "-static")312	cmd.Stdin = strings.NewReader("int main(){}")313	return cmd.Run() == nil314}315func needSyscallDefine(nr uint64) bool {316	return true317}318func dontNeedSyscallDefine(nr uint64) bool {319	return false320}...

init.go

Source:init.go

1// Copyright 2017 syzkaller project authors. All rights reserved.2// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.3package akaros4import (5	"github.com/google/syzkaller/prog"6	"github.com/google/syzkaller/sys/akaros/gen"7	"github.com/google/syzkaller/sys/targets"8)9func init() {10	prog.RegisterTarget(gen.Target_amd64, initTarget)11}12func initTarget(target *prog.Target) {13	target.MakeMmap = targets.MakePosixMmap(target)14}...

InitTarget

Using AI Code Generation

1import (2func main() {3    fmt.Println(akaros.GetTarget())4}5import (6func main() {7    fmt.Println(akaros.GetTarget())8}9import (10func main() {11    fmt.Println(akaros.GetTarget())12}13import (14func main() {15    fmt.Println(akaros.GetTarget())16}17import (18func main() {19    fmt.Println(akaros.GetTarget())20}21import (22func main() {23    fmt.Println(akaros.GetTarget())24}25import (26func main() {27    fmt.Println(akaros.GetTarget())28}

InitTarget

Using AI Code Generation

1import (2func main() {3	ak := akaros.NewAkaros()4	fmt.Println(ak)5}62.2.2. GetTarget()7import (8func main() {9	ak := akaros.NewAkaros()10	fmt.Println(ak.GetTarget())11}122.2.3. SetHeader()13import (14func main() {15	ak := akaros.NewAkaros()16	fmt.Println(ak.SetHeader("Content-Type", "application/json"))17}182.2.4. GetHeader()19import (20func main() {21	ak := akaros.NewAkaros()22	ak.SetHeader("Content-Type", "application/json")23	fmt.Println(

InitTarget

Using AI Code Generation

1import (2func main() {3	akarosObj := akaros.Akaros{}4	fmt.Println(akarosObj.GetTarget())5}6import (7func main() {8	akarosObj := akaros.Akaros{}9	fmt.Println(akarosObj.GetTarget())10}11import (12func main() {13	akarosObj := akaros.Akaros{}14	fmt.Println(akarosObj.GetTarget())15}16import (17func main() {18	akarosObj := akaros.Akaros{}19	fmt.Println(akarosObj.GetTarget())20}21import (22func main() {23	akarosObj := akaros.Akaros{}24	fmt.Println(akarosObj.GetTarget())25}26import (27func main() {

InitTarget

Using AI Code Generation

1import (2func main() {3	target, err := akaros.InitTarget()4	if err != nil {5		fmt.Println(err)6	}7	fmt.Println("Target initialized successfully")8	fmt.Println(target)9}10import (11func main() {12	target, err := akaros.InitTarget()13	if err != nil {14		fmt.Println(err)15	}16	fmt.Println("Target initialized successfully")17	fmt.Println(target)18}19import (20func main() {21	target, err := akaros.InitTarget()22	if err != nil {23		fmt.Println(err)24	}25	fmt.Println("Target initialized successfully")26	fmt.Println(target)27}28import (29func main() {30	target, err := akaros.InitTarget()31	if err != nil {32		fmt.Println(err)33	}34	fmt.Println("Target initialized successfully")35	fmt.Println(target)36}37import (38func main() {39	target, err := akaros.InitTarget()40	if err != nil {41		fmt.Println(err)42	}43	fmt.Println("Target initialized successfully")44	fmt.Println(target)45}46import (47func main() {48	target, err := akaros.InitTarget()49	if err != nil {50		fmt.Println(err)51	}

InitTarget

Using AI Code Generation

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

InitTarget

Using AI Code Generation

1import (2func main() {3	akaros.InitTarget()4}5import (6func main() {7	akaros.InitTarget()8}9Akaros 2.0.0 (c) 2019 Akaros10import (11func main() {12	akaros.InitTarget()13}14Akaros 2.0.0 (c) 2019 Akaros15import (16func main() {17	akaros.InitTarget()18	fmt.Println(akaros.GetVersion())19}20import (21func main() {22	akaros.InitTarget()23	fmt.Println(akaros.GetVersion())24	fmt.Println(akaros.GetSysInfo())25}

InitTarget

Using AI Code Generation

1import (2func main() {3 akaros.InitTarget()4}5import (6func InitTarget() {7 fmt.Println("Hello World")8}

InitTarget

Using AI Code Generation

1import (2type target struct {3}4func (t *target) Display() {5  fmt.Println("Name:", t.name, "Age:", t.age)6}7type akaros struct {8}9func (a *akaros) InitTarget(name string, age int) {10}11func main() {12  a := akaros{}13  a.InitTarget("Akaros", 20)14  a.Display()15}16import (17type target struct {18}19func (t *target) Display() {20  fmt.Println("Name:", t.name, "Age:", t.age)21}22type akaros struct {23}24func (a *akaros) InitTarget(name string, age int) {25}26func (a *akaros) Display() {27  a.target.Display()28}29func main() {30  a := akaros{}31  a.InitTarget("Akaros", 20)32  a.Display()33}

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