build/art.go - LeafOS-Project/android_art - Gitiles

 // Copyright (C) 2016 The Android Open Source Project
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.

 package art

 import (
 	"android/soong/android"
 	"android/soong/cc"
 	"fmt"
 	"sync"

 	"github.com/google/blueprint/proptools"
 )

 var supportedArches = []string{"arm", "arm64", "mips", "mips64", "x86", "x86_64"}

 func globalFlags(ctx android.BaseContext) ([]string, []string) {
 	var cflags []string
 	var asflags []string

 	opt := envDefault(ctx, "ART_NDEBUG_OPT_FLAG", "-O3")
 	cflags = append(cflags, opt)

 	tlab := false

 	gcType := envDefault(ctx, "ART_DEFAULT_GC_TYPE", "CMS")

 	if envTrue(ctx, "ART_TEST_DEBUG_GC") {
 		gcType = "SS"
 		tlab = true
 	}

 	cflags = append(cflags, "-DART_DEFAULT_GC_TYPE_IS_"+gcType)
 	if tlab {
 		cflags = append(cflags, "-DART_USE_TLAB=1")
 	}

 	imtSize := envDefault(ctx, "ART_IMT_SIZE", "43")
 	cflags = append(cflags, "-DIMT_SIZE="+imtSize)

 	if envTrue(ctx, "ART_HEAP_POISONING") {
 		cflags = append(cflags, "-DART_HEAP_POISONING=1")
 		asflags = append(asflags, "-DART_HEAP_POISONING=1")
 	}

 	if !envFalse(ctx, "ART_USE_READ_BARRIER") && ctx.AConfig().ArtUseReadBarrier() {
 		// Used to change the read barrier type. Valid values are BAKER, BROOKS,
 		// TABLELOOKUP. The default is BAKER.
 		barrierType := envDefault(ctx, "ART_READ_BARRIER_TYPE", "BAKER")
 		cflags = append(cflags,
 			"-DART_USE_READ_BARRIER=1",
 			"-DART_READ_BARRIER_TYPE_IS_"+barrierType+"=1")
 		asflags = append(asflags,
 			"-DART_USE_READ_BARRIER=1",
 			"-DART_READ_BARRIER_TYPE_IS_"+barrierType+"=1")
 	}

   cdexLevel := envDefault(ctx, "ART_DEFAULT_COMPACT_DEX_LEVEL", "fast")
   cflags = append(cflags, "-DART_DEFAULT_COMPACT_DEX_LEVEL="+cdexLevel)

 	// We need larger stack overflow guards for ASAN, as the compiled code will have
 	// larger frame sizes. For simplicity, just use global not-target-specific cflags.
 	// Note: We increase this for both debug and non-debug, as the overflow gap will
 	//       be compiled into managed code. We always preopt (and build core images) with
 	//       the debug version. So make the gap consistent (and adjust for the worst).
 	if len(ctx.AConfig().SanitizeDevice()) > 0 || len(ctx.AConfig().SanitizeHost()) > 0 {
 		cflags = append(cflags,
 			"-DART_STACK_OVERFLOW_GAP_arm=8192",
 			"-DART_STACK_OVERFLOW_GAP_arm64=8192",
 			"-DART_STACK_OVERFLOW_GAP_mips=16384",
 			"-DART_STACK_OVERFLOW_GAP_mips64=16384",
 			"-DART_STACK_OVERFLOW_GAP_x86=16384",
 			"-DART_STACK_OVERFLOW_GAP_x86_64=20480")
 	} else {
 		cflags = append(cflags,
 			"-DART_STACK_OVERFLOW_GAP_arm=8192",
 			"-DART_STACK_OVERFLOW_GAP_arm64=8192",
 			"-DART_STACK_OVERFLOW_GAP_mips=16384",
 			"-DART_STACK_OVERFLOW_GAP_mips64=16384",
 			"-DART_STACK_OVERFLOW_GAP_x86=8192",
 			"-DART_STACK_OVERFLOW_GAP_x86_64=8192")
 	}

 	if envTrue(ctx, "ART_ENABLE_ADDRESS_SANITIZER") {
 		// Used to enable full sanitization, i.e., user poisoning, under ASAN.
 		cflags = append(cflags, "-DART_ENABLE_ADDRESS_SANITIZER=1")
 		asflags = append(asflags, "-DART_ENABLE_ADDRESS_SANITIZER=1")
 	}

 	if envTrue(ctx, "ART_MIPS32_CHECK_ALIGNMENT") {
 		// Enable the use of MIPS32 CHECK_ALIGNMENT macro for debugging purposes
 		asflags = append(asflags, "-DART_MIPS32_CHECK_ALIGNMENT")
 	}

 	if envTrueOrDefault(ctx, "USE_D8_DESUGAR") {
 		cflags = append(cflags, "-DUSE_D8_DESUGAR=1")
 	}

 	return cflags, asflags
 }

 func debugFlags(ctx android.BaseContext) []string {
 	var cflags []string

 	opt := envDefault(ctx, "ART_DEBUG_OPT_FLAG", "-O2")
 	cflags = append(cflags, opt)

 	return cflags
 }

 func deviceFlags(ctx android.BaseContext) []string {
 	var cflags []string
 	deviceFrameSizeLimit := 1736
 	if len(ctx.AConfig().SanitizeDevice()) > 0 {
 		deviceFrameSizeLimit = 7400
 	}
 	cflags = append(cflags,
 		fmt.Sprintf("-Wframe-larger-than=%d", deviceFrameSizeLimit),
 		fmt.Sprintf("-DART_FRAME_SIZE_LIMIT=%d", deviceFrameSizeLimit),
 	)

 	cflags = append(cflags, "-DART_BASE_ADDRESS="+ctx.AConfig().LibartImgDeviceBaseAddress())
 	if envTrue(ctx, "ART_TARGET_LINUX") {
 		cflags = append(cflags, "-DART_TARGET_LINUX")
 	} else {
 		cflags = append(cflags, "-DART_TARGET_ANDROID")
 	}
 	minDelta := envDefault(ctx, "LIBART_IMG_TARGET_MIN_BASE_ADDRESS_DELTA", "-0x1000000")
 	maxDelta := envDefault(ctx, "LIBART_IMG_TARGET_MAX_BASE_ADDRESS_DELTA", "0x1000000")
 	cflags = append(cflags, "-DART_BASE_ADDRESS_MIN_DELTA="+minDelta)
 	cflags = append(cflags, "-DART_BASE_ADDRESS_MAX_DELTA="+maxDelta)

 	return cflags
 }

 func hostFlags(ctx android.BaseContext) []string {
 	var cflags []string
 	hostFrameSizeLimit := 1736
 	if len(ctx.AConfig().SanitizeHost()) > 0 {
 		// art/test/137-cfi/cfi.cc
 		// error: stack frame size of 1944 bytes in function 'Java_Main_unwindInProcess'
 		hostFrameSizeLimit = 6400
 	}
 	cflags = append(cflags,
 		fmt.Sprintf("-Wframe-larger-than=%d", hostFrameSizeLimit),
 		fmt.Sprintf("-DART_FRAME_SIZE_LIMIT=%d", hostFrameSizeLimit),
 	)

 	cflags = append(cflags, "-DART_BASE_ADDRESS="+ctx.AConfig().LibartImgHostBaseAddress())
 	minDelta := envDefault(ctx, "LIBART_IMG_HOST_MIN_BASE_ADDRESS_DELTA", "-0x1000000")
 	maxDelta := envDefault(ctx, "LIBART_IMG_HOST_MAX_BASE_ADDRESS_DELTA", "0x1000000")
 	cflags = append(cflags, "-DART_BASE_ADDRESS_MIN_DELTA="+minDelta)
 	cflags = append(cflags, "-DART_BASE_ADDRESS_MAX_DELTA="+maxDelta)

 	if len(ctx.AConfig().SanitizeHost()) > 0 && !envFalse(ctx, "ART_ENABLE_ADDRESS_SANITIZER") {
 		// We enable full sanitization on the host by default.
 		cflags = append(cflags, "-DART_ENABLE_ADDRESS_SANITIZER=1")
 	}

 	return cflags
 }

 func globalDefaults(ctx android.LoadHookContext) {
 	type props struct {
 		Target struct {
 			Android struct {
 				Cflags []string
 			}
 			Host struct {
 				Cflags []string
 			}
 		}
 		Cflags   []string
 		Asflags  []string
 		Sanitize struct {
 			Recover []string
 		}
 	}

 	p := &props{}
 	p.Cflags, p.Asflags = globalFlags(ctx)
 	p.Target.Android.Cflags = deviceFlags(ctx)
 	p.Target.Host.Cflags = hostFlags(ctx)

 	if envTrue(ctx, "ART_DEX_FILE_ACCESS_TRACKING") {
 		p.Cflags = append(p.Cflags, "-DART_DEX_FILE_ACCESS_TRACKING")
 		p.Sanitize.Recover = []string{
 			"address",
 		}
 	}

 	ctx.AppendProperties(p)
 }

 func debugDefaults(ctx android.LoadHookContext) {
 	type props struct {
 		Cflags []string
 	}

 	p := &props{}
 	p.Cflags = debugFlags(ctx)
 	ctx.AppendProperties(p)
 }

 func customLinker(ctx android.LoadHookContext) {
 	linker := envDefault(ctx, "CUSTOM_TARGET_LINKER", "")
 	type props struct {
 		DynamicLinker string
 	}

 	p := &props{}
 	if linker != "" {
 		p.DynamicLinker = linker
 	}

 	ctx.AppendProperties(p)
 }

 func prefer32Bit(ctx android.LoadHookContext) {
 	type props struct {
 		Target struct {
 			Host struct {
 				Compile_multilib *string
 			}
 		}
 	}

 	p := &props{}
 	if envTrue(ctx, "HOST_PREFER_32_BIT") {
 		p.Target.Host.Compile_multilib = proptools.StringPtr("prefer32")
 	}

 	ctx.AppendProperties(p)
 }

 func testMap(config android.Config) map[string][]string {
 	return config.Once("artTests", func() interface{} {
 		return make(map[string][]string)
 	}).(map[string][]string)
 }

 func testInstall(ctx android.InstallHookContext) {
 	testMap := testMap(ctx.AConfig())

 	var name string
 	if ctx.Host() {
 		name = "host_"
 	} else {
 		name = "device_"
 	}
 	name += ctx.Arch().ArchType.String() + "_" + ctx.ModuleName()

 	artTestMutex.Lock()
 	defer artTestMutex.Unlock()

 	tests := testMap[name]
 	tests = append(tests, ctx.Path().RelPathString())
 	testMap[name] = tests
 }

 var artTestMutex sync.Mutex

 func init() {
 	android.RegisterModuleType("art_cc_library", artLibrary)
 	android.RegisterModuleType("art_cc_static_library", artStaticLibrary)
 	android.RegisterModuleType("art_cc_binary", artBinary)
 	android.RegisterModuleType("art_cc_test", artTest)
 	android.RegisterModuleType("art_cc_test_library", artTestLibrary)
 	android.RegisterModuleType("art_cc_defaults", artDefaultsFactory)
 	android.RegisterModuleType("libart_cc_defaults", libartDefaultsFactory)
 	android.RegisterModuleType("art_global_defaults", artGlobalDefaultsFactory)
 	android.RegisterModuleType("art_debug_defaults", artDebugDefaultsFactory)
 }

 func artGlobalDefaultsFactory() android.Module {
 	module := artDefaultsFactory()
 	android.AddLoadHook(module, globalDefaults)

 	return module
 }

 func artDebugDefaultsFactory() android.Module {
 	module := artDefaultsFactory()
 	android.AddLoadHook(module, debugDefaults)

 	return module
 }

 func artDefaultsFactory() android.Module {
 	c := &codegenProperties{}
 	module := cc.DefaultsFactory(c)
 	android.AddLoadHook(module, func(ctx android.LoadHookContext) { codegen(ctx, c, true) })

 	return module
 }

 func libartDefaultsFactory() android.Module {
 	c := &codegenProperties{}
 	module := cc.DefaultsFactory(c)
 	android.AddLoadHook(module, func(ctx android.LoadHookContext) {
 		codegen(ctx, c, true)

 		type props struct {
 		  Target struct {
 		    Android struct {
 		      Shared_libs []string
 		    }
 		  }
 		}

 		p := &props{}
 		// TODO: express this in .bp instead b/79671158
 		if !envTrue(ctx, "ART_TARGET_LINUX") {
 		  p.Target.Android.Shared_libs = []string {
 		    "libmetricslogger",
 		  }
 		}
 		ctx.AppendProperties(p)
 	})

 	return module
 }

 func artLibrary() android.Module {
 	m, _ := cc.NewLibrary(android.HostAndDeviceSupported)
 	module := m.Init()

 	installCodegenCustomizer(module, true)

 	return module
 }

 func artStaticLibrary() android.Module {
 	m, library := cc.NewLibrary(android.HostAndDeviceSupported)
 	library.BuildOnlyStatic()
 	module := m.Init()

 	installCodegenCustomizer(module, true)

 	return module
 }

 func artBinary() android.Module {
 	binary, _ := cc.NewBinary(android.HostAndDeviceSupported)
 	module := binary.Init()

 	android.AddLoadHook(module, customLinker)
 	android.AddLoadHook(module, prefer32Bit)
 	return module
 }

 func artTest() android.Module {
 	test := cc.NewTest(android.HostAndDeviceSupported)
 	module := test.Init()

 	installCodegenCustomizer(module, false)

 	android.AddLoadHook(module, customLinker)
 	android.AddLoadHook(module, prefer32Bit)
 	android.AddInstallHook(module, testInstall)
 	return module
 }

 func artTestLibrary() android.Module {
 	test := cc.NewTestLibrary(android.HostAndDeviceSupported)
 	module := test.Init()

 	installCodegenCustomizer(module, false)

 	android.AddLoadHook(module, prefer32Bit)
 	android.AddInstallHook(module, testInstall)
 	return module
 }

 func envDefault(ctx android.BaseContext, key string, defaultValue string) string {
 	ret := ctx.AConfig().Getenv(key)
 	if ret == "" {
 		return defaultValue
 	}
 	return ret
 }

 func envTrue(ctx android.BaseContext, key string) bool {
 	return ctx.AConfig().Getenv(key) == "true"
 }

 func envFalse(ctx android.BaseContext, key string) bool {
 	return ctx.AConfig().Getenv(key) == "false"
 }

 func envTrueOrDefault(ctx android.BaseContext, key string) bool {
 	return ctx.AConfig().Getenv(key) != "false"
 }
	// Copyright (C) 2016 The Android Open Source Project
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.

	package art

	import (
	"android/soong/android"
	"android/soong/cc"
	"fmt"
	"sync"

	"github.com/google/blueprint/proptools"
	)

	var supportedArches = []string{"arm", "arm64", "mips", "mips64", "x86", "x86_64"}

	func globalFlags(ctx android.BaseContext) ([]string, []string) {
	var cflags []string
	var asflags []string

	opt := envDefault(ctx, "ART_NDEBUG_OPT_FLAG", "-O3")
	cflags = append(cflags, opt)

	tlab := false

	gcType := envDefault(ctx, "ART_DEFAULT_GC_TYPE", "CMS")

	if envTrue(ctx, "ART_TEST_DEBUG_GC") {
	gcType = "SS"
	tlab = true
	}

	cflags = append(cflags, "-DART_DEFAULT_GC_TYPE_IS_"+gcType)
	if tlab {
	cflags = append(cflags, "-DART_USE_TLAB=1")
	}

	imtSize := envDefault(ctx, "ART_IMT_SIZE", "43")
	cflags = append(cflags, "-DIMT_SIZE="+imtSize)

	if envTrue(ctx, "ART_HEAP_POISONING") {
	cflags = append(cflags, "-DART_HEAP_POISONING=1")
	asflags = append(asflags, "-DART_HEAP_POISONING=1")
	}

	if !envFalse(ctx, "ART_USE_READ_BARRIER") && ctx.AConfig().ArtUseReadBarrier() {
	// Used to change the read barrier type. Valid values are BAKER, BROOKS,
	// TABLELOOKUP. The default is BAKER.
	barrierType := envDefault(ctx, "ART_READ_BARRIER_TYPE", "BAKER")
	cflags = append(cflags,
	"-DART_USE_READ_BARRIER=1",
	"-DART_READ_BARRIER_TYPE_IS_"+barrierType+"=1")
	asflags = append(asflags,
	"-DART_USE_READ_BARRIER=1",
	"-DART_READ_BARRIER_TYPE_IS_"+barrierType+"=1")
	}

	cdexLevel := envDefault(ctx, "ART_DEFAULT_COMPACT_DEX_LEVEL", "fast")
	cflags = append(cflags, "-DART_DEFAULT_COMPACT_DEX_LEVEL="+cdexLevel)

	// We need larger stack overflow guards for ASAN, as the compiled code will have
	// larger frame sizes. For simplicity, just use global not-target-specific cflags.
	// Note: We increase this for both debug and non-debug, as the overflow gap will
	// be compiled into managed code. We always preopt (and build core images) with
	// the debug version. So make the gap consistent (and adjust for the worst).
	if len(ctx.AConfig().SanitizeDevice()) > 0 \|\| len(ctx.AConfig().SanitizeHost()) > 0 {
	cflags = append(cflags,
	"-DART_STACK_OVERFLOW_GAP_arm=8192",
	"-DART_STACK_OVERFLOW_GAP_arm64=8192",
	"-DART_STACK_OVERFLOW_GAP_mips=16384",
	"-DART_STACK_OVERFLOW_GAP_mips64=16384",
	"-DART_STACK_OVERFLOW_GAP_x86=16384",
	"-DART_STACK_OVERFLOW_GAP_x86_64=20480")
	} else {
	cflags = append(cflags,
	"-DART_STACK_OVERFLOW_GAP_arm=8192",
	"-DART_STACK_OVERFLOW_GAP_arm64=8192",
	"-DART_STACK_OVERFLOW_GAP_mips=16384",
	"-DART_STACK_OVERFLOW_GAP_mips64=16384",
	"-DART_STACK_OVERFLOW_GAP_x86=8192",
	"-DART_STACK_OVERFLOW_GAP_x86_64=8192")
	}

	if envTrue(ctx, "ART_ENABLE_ADDRESS_SANITIZER") {
	// Used to enable full sanitization, i.e., user poisoning, under ASAN.
	cflags = append(cflags, "-DART_ENABLE_ADDRESS_SANITIZER=1")
	asflags = append(asflags, "-DART_ENABLE_ADDRESS_SANITIZER=1")
	}

	if envTrue(ctx, "ART_MIPS32_CHECK_ALIGNMENT") {
	// Enable the use of MIPS32 CHECK_ALIGNMENT macro for debugging purposes
	asflags = append(asflags, "-DART_MIPS32_CHECK_ALIGNMENT")
	}

	if envTrueOrDefault(ctx, "USE_D8_DESUGAR") {
	cflags = append(cflags, "-DUSE_D8_DESUGAR=1")
	}

	return cflags, asflags
	}

	func debugFlags(ctx android.BaseContext) []string {
	var cflags []string

	opt := envDefault(ctx, "ART_DEBUG_OPT_FLAG", "-O2")
	cflags = append(cflags, opt)

	return cflags
	}

	func deviceFlags(ctx android.BaseContext) []string {
	var cflags []string
	deviceFrameSizeLimit := 1736
	if len(ctx.AConfig().SanitizeDevice()) > 0 {
	deviceFrameSizeLimit = 7400
	}
	cflags = append(cflags,
	fmt.Sprintf("-Wframe-larger-than=%d", deviceFrameSizeLimit),
	fmt.Sprintf("-DART_FRAME_SIZE_LIMIT=%d", deviceFrameSizeLimit),
	)

	cflags = append(cflags, "-DART_BASE_ADDRESS="+ctx.AConfig().LibartImgDeviceBaseAddress())
	if envTrue(ctx, "ART_TARGET_LINUX") {
	cflags = append(cflags, "-DART_TARGET_LINUX")
	} else {
	cflags = append(cflags, "-DART_TARGET_ANDROID")
	}
	minDelta := envDefault(ctx, "LIBART_IMG_TARGET_MIN_BASE_ADDRESS_DELTA", "-0x1000000")
	maxDelta := envDefault(ctx, "LIBART_IMG_TARGET_MAX_BASE_ADDRESS_DELTA", "0x1000000")
	cflags = append(cflags, "-DART_BASE_ADDRESS_MIN_DELTA="+minDelta)
	cflags = append(cflags, "-DART_BASE_ADDRESS_MAX_DELTA="+maxDelta)

	return cflags
	}

	func hostFlags(ctx android.BaseContext) []string {
	var cflags []string
	hostFrameSizeLimit := 1736
	if len(ctx.AConfig().SanitizeHost()) > 0 {
	// art/test/137-cfi/cfi.cc
	// error: stack frame size of 1944 bytes in function 'Java_Main_unwindInProcess'
	hostFrameSizeLimit = 6400
	}
	cflags = append(cflags,
	fmt.Sprintf("-Wframe-larger-than=%d", hostFrameSizeLimit),
	fmt.Sprintf("-DART_FRAME_SIZE_LIMIT=%d", hostFrameSizeLimit),
	)

	cflags = append(cflags, "-DART_BASE_ADDRESS="+ctx.AConfig().LibartImgHostBaseAddress())
	minDelta := envDefault(ctx, "LIBART_IMG_HOST_MIN_BASE_ADDRESS_DELTA", "-0x1000000")
	maxDelta := envDefault(ctx, "LIBART_IMG_HOST_MAX_BASE_ADDRESS_DELTA", "0x1000000")
	cflags = append(cflags, "-DART_BASE_ADDRESS_MIN_DELTA="+minDelta)
	cflags = append(cflags, "-DART_BASE_ADDRESS_MAX_DELTA="+maxDelta)

	if len(ctx.AConfig().SanitizeHost()) > 0 && !envFalse(ctx, "ART_ENABLE_ADDRESS_SANITIZER") {
	// We enable full sanitization on the host by default.
	cflags = append(cflags, "-DART_ENABLE_ADDRESS_SANITIZER=1")
	}

	return cflags
	}

	func globalDefaults(ctx android.LoadHookContext) {
	type props struct {
	Target struct {
	Android struct {
	Cflags []string
	}
	Host struct {
	Cflags []string
	}
	}
	Cflags []string
	Asflags []string
	Sanitize struct {
	Recover []string
	}
	}

	p := &props{}
	p.Cflags, p.Asflags = globalFlags(ctx)
	p.Target.Android.Cflags = deviceFlags(ctx)
	p.Target.Host.Cflags = hostFlags(ctx)

	if envTrue(ctx, "ART_DEX_FILE_ACCESS_TRACKING") {
	p.Cflags = append(p.Cflags, "-DART_DEX_FILE_ACCESS_TRACKING")
	p.Sanitize.Recover = []string{
	"address",
	}
	}

	ctx.AppendProperties(p)
	}

	func debugDefaults(ctx android.LoadHookContext) {
	type props struct {
	Cflags []string
	}

	p := &props{}
	p.Cflags = debugFlags(ctx)
	ctx.AppendProperties(p)
	}

	func customLinker(ctx android.LoadHookContext) {
	linker := envDefault(ctx, "CUSTOM_TARGET_LINKER", "")
	type props struct {
	DynamicLinker string
	}

	p := &props{}
	if linker != "" {
	p.DynamicLinker = linker
	}

	ctx.AppendProperties(p)
	}

	func prefer32Bit(ctx android.LoadHookContext) {
	type props struct {
	Target struct {
	Host struct {
	Compile_multilib *string
	}
	}
	}

	p := &props{}
	if envTrue(ctx, "HOST_PREFER_32_BIT") {
	p.Target.Host.Compile_multilib = proptools.StringPtr("prefer32")
	}

	ctx.AppendProperties(p)
	}

	func testMap(config android.Config) map[string][]string {
	return config.Once("artTests", func() interface{} {
	return make(map[string][]string)
	}).(map[string][]string)
	}

	func testInstall(ctx android.InstallHookContext) {
	testMap := testMap(ctx.AConfig())

	var name string
	if ctx.Host() {
	name = "host_"
	} else {
	name = "device_"
	}
	name += ctx.Arch().ArchType.String() + "_" + ctx.ModuleName()

	artTestMutex.Lock()
	defer artTestMutex.Unlock()

	tests := testMap[name]
	tests = append(tests, ctx.Path().RelPathString())
	testMap[name] = tests
	}

	var artTestMutex sync.Mutex

	func init() {
	android.RegisterModuleType("art_cc_library", artLibrary)
	android.RegisterModuleType("art_cc_static_library", artStaticLibrary)
	android.RegisterModuleType("art_cc_binary", artBinary)
	android.RegisterModuleType("art_cc_test", artTest)
	android.RegisterModuleType("art_cc_test_library", artTestLibrary)
	android.RegisterModuleType("art_cc_defaults", artDefaultsFactory)
	android.RegisterModuleType("libart_cc_defaults", libartDefaultsFactory)
	android.RegisterModuleType("art_global_defaults", artGlobalDefaultsFactory)
	android.RegisterModuleType("art_debug_defaults", artDebugDefaultsFactory)
	}

	func artGlobalDefaultsFactory() android.Module {
	module := artDefaultsFactory()
	android.AddLoadHook(module, globalDefaults)

	return module
	}

	func artDebugDefaultsFactory() android.Module {
	module := artDefaultsFactory()
	android.AddLoadHook(module, debugDefaults)

	return module
	}

	func artDefaultsFactory() android.Module {
	c := &codegenProperties{}
	module := cc.DefaultsFactory(c)
	android.AddLoadHook(module, func(ctx android.LoadHookContext) { codegen(ctx, c, true) })

	return module
	}

	func libartDefaultsFactory() android.Module {
	c := &codegenProperties{}
	module := cc.DefaultsFactory(c)
	android.AddLoadHook(module, func(ctx android.LoadHookContext) {
	codegen(ctx, c, true)

	type props struct {
	Target struct {
	Android struct {
	Shared_libs []string
	}
	}
	}

	p := &props{}
	// TODO: express this in .bp instead b/79671158
	if !envTrue(ctx, "ART_TARGET_LINUX") {
	p.Target.Android.Shared_libs = []string {
	"libmetricslogger",
	}
	}
	ctx.AppendProperties(p)
	})

	return module
	}

	func artLibrary() android.Module {
	m, _ := cc.NewLibrary(android.HostAndDeviceSupported)
	module := m.Init()

	installCodegenCustomizer(module, true)

	return module
	}

	func artStaticLibrary() android.Module {
	m, library := cc.NewLibrary(android.HostAndDeviceSupported)
	library.BuildOnlyStatic()
	module := m.Init()

	installCodegenCustomizer(module, true)

	return module
	}

	func artBinary() android.Module {
	binary, _ := cc.NewBinary(android.HostAndDeviceSupported)
	module := binary.Init()

	android.AddLoadHook(module, customLinker)
	android.AddLoadHook(module, prefer32Bit)
	return module
	}

	func artTest() android.Module {
	test := cc.NewTest(android.HostAndDeviceSupported)
	module := test.Init()

	installCodegenCustomizer(module, false)

	android.AddLoadHook(module, customLinker)
	android.AddLoadHook(module, prefer32Bit)
	android.AddInstallHook(module, testInstall)
	return module
	}

	func artTestLibrary() android.Module {
	test := cc.NewTestLibrary(android.HostAndDeviceSupported)
	module := test.Init()

	installCodegenCustomizer(module, false)

	android.AddLoadHook(module, prefer32Bit)
	android.AddInstallHook(module, testInstall)
	return module
	}

	func envDefault(ctx android.BaseContext, key string, defaultValue string) string {
	ret := ctx.AConfig().Getenv(key)
	if ret == "" {
	return defaultValue
	}
	return ret
	}

	func envTrue(ctx android.BaseContext, key string) bool {
	return ctx.AConfig().Getenv(key) == "true"
	}

	func envFalse(ctx android.BaseContext, key string) bool {
	return ctx.AConfig().Getenv(key) == "false"
	}

	func envTrueOrDefault(ctx android.BaseContext, key string) bool {
	return ctx.AConfig().Getenv(key) != "false"
	}