| // Copyright 2016 Google Inc. All rights reserved. | 
 | // | 
 | // 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 cc | 
 |  | 
 | import ( | 
 | 	"strings" | 
 |  | 
 | 	"github.com/google/blueprint" | 
 | 	"github.com/google/blueprint/pathtools" | 
 |  | 
 | 	"android/soong/android" | 
 | 	"android/soong/cc/config" | 
 | ) | 
 |  | 
 | type LibraryProperties struct { | 
 | 	Static struct { | 
 | 		Srcs   []string `android:"arch_variant"` | 
 | 		Cflags []string `android:"arch_variant"` | 
 |  | 
 | 		Enabled           *bool    `android:"arch_variant"` | 
 | 		Whole_static_libs []string `android:"arch_variant"` | 
 | 		Static_libs       []string `android:"arch_variant"` | 
 | 		Shared_libs       []string `android:"arch_variant"` | 
 | 	} `android:"arch_variant"` | 
 | 	Shared struct { | 
 | 		Srcs   []string `android:"arch_variant"` | 
 | 		Cflags []string `android:"arch_variant"` | 
 |  | 
 | 		Enabled           *bool    `android:"arch_variant"` | 
 | 		Whole_static_libs []string `android:"arch_variant"` | 
 | 		Static_libs       []string `android:"arch_variant"` | 
 | 		Shared_libs       []string `android:"arch_variant"` | 
 | 	} `android:"arch_variant"` | 
 |  | 
 | 	// local file name to pass to the linker as --version_script | 
 | 	Version_script *string `android:"arch_variant"` | 
 | 	// local file name to pass to the linker as -unexported_symbols_list | 
 | 	Unexported_symbols_list *string `android:"arch_variant"` | 
 | 	// local file name to pass to the linker as -force_symbols_not_weak_list | 
 | 	Force_symbols_not_weak_list *string `android:"arch_variant"` | 
 | 	// local file name to pass to the linker as -force_symbols_weak_list | 
 | 	Force_symbols_weak_list *string `android:"arch_variant"` | 
 |  | 
 | 	// rename host libraries to prevent overlap with system installed libraries | 
 | 	Unique_host_soname *bool | 
 |  | 
 | 	Aidl struct { | 
 | 		// export headers generated from .aidl sources | 
 | 		Export_aidl_headers *bool | 
 | 	} | 
 |  | 
 | 	Proto struct { | 
 | 		// export headers generated from .proto sources | 
 | 		Export_proto_headers *bool | 
 | 	} | 
 | 	Target struct { | 
 | 		Vendor struct { | 
 | 			// version script for this vendor variant | 
 | 			Version_script *string `android:"arch_variant"` | 
 | 		} | 
 | 	} | 
 |  | 
 | 	Static_ndk_lib *bool | 
 | } | 
 |  | 
 | type LibraryMutatedProperties struct { | 
 | 	VariantName string `blueprint:"mutated"` | 
 |  | 
 | 	// Build a static variant | 
 | 	BuildStatic bool `blueprint:"mutated"` | 
 | 	// Build a shared variant | 
 | 	BuildShared bool `blueprint:"mutated"` | 
 | 	// This variant is shared | 
 | 	VariantIsShared bool `blueprint:"mutated"` | 
 | 	// This variant is static | 
 | 	VariantIsStatic bool `blueprint:"mutated"` | 
 | } | 
 |  | 
 | type FlagExporterProperties struct { | 
 | 	// list of directories relative to the Blueprints file that will | 
 | 	// be added to the include path (using -I) for this module and any module that links | 
 | 	// against this module.  Directories listed in export_include_dirs do not need to be | 
 | 	// listed in local_include_dirs. | 
 | 	Export_include_dirs []string `android:"arch_variant"` | 
 |  | 
 | 	Target struct { | 
 | 		Vendor struct { | 
 | 			// list of exported include directories, like | 
 | 			// export_include_dirs, that will be applied to the | 
 | 			// vendor variant of this library. This will overwrite | 
 | 			// any other declarations. | 
 | 			Override_export_include_dirs []string | 
 | 		} | 
 | 	} | 
 | } | 
 |  | 
 | func init() { | 
 | 	android.RegisterModuleType("cc_library_static", LibraryStaticFactory) | 
 | 	android.RegisterModuleType("cc_library_shared", LibrarySharedFactory) | 
 | 	android.RegisterModuleType("cc_library", LibraryFactory) | 
 | 	android.RegisterModuleType("cc_library_host_static", LibraryHostStaticFactory) | 
 | 	android.RegisterModuleType("cc_library_host_shared", LibraryHostSharedFactory) | 
 | 	android.RegisterModuleType("cc_library_headers", LibraryHeaderFactory) | 
 | } | 
 |  | 
 | // Module factory for combined static + shared libraries, device by default but with possible host | 
 | // support | 
 | func LibraryFactory() android.Module { | 
 | 	module, _ := NewLibrary(android.HostAndDeviceSupported) | 
 | 	return module.Init() | 
 | } | 
 |  | 
 | // Module factory for static libraries | 
 | func LibraryStaticFactory() android.Module { | 
 | 	module, library := NewLibrary(android.HostAndDeviceSupported) | 
 | 	library.BuildOnlyStatic() | 
 | 	return module.Init() | 
 | } | 
 |  | 
 | // Module factory for shared libraries | 
 | func LibrarySharedFactory() android.Module { | 
 | 	module, library := NewLibrary(android.HostAndDeviceSupported) | 
 | 	library.BuildOnlyShared() | 
 | 	return module.Init() | 
 | } | 
 |  | 
 | // Module factory for host static libraries | 
 | func LibraryHostStaticFactory() android.Module { | 
 | 	module, library := NewLibrary(android.HostSupported) | 
 | 	library.BuildOnlyStatic() | 
 | 	return module.Init() | 
 | } | 
 |  | 
 | // Module factory for host shared libraries | 
 | func LibraryHostSharedFactory() android.Module { | 
 | 	module, library := NewLibrary(android.HostSupported) | 
 | 	library.BuildOnlyShared() | 
 | 	return module.Init() | 
 | } | 
 |  | 
 | // Module factory for header-only libraries | 
 | func LibraryHeaderFactory() android.Module { | 
 | 	module, library := NewLibrary(android.HostAndDeviceSupported) | 
 | 	library.HeaderOnly() | 
 | 	return module.Init() | 
 | } | 
 |  | 
 | type flagExporter struct { | 
 | 	Properties FlagExporterProperties | 
 |  | 
 | 	flags     []string | 
 | 	flagsDeps android.Paths | 
 | } | 
 |  | 
 | func (f *flagExporter) exportedIncludes(ctx ModuleContext) android.Paths { | 
 | 	if ctx.useVndk() && f.Properties.Target.Vendor.Override_export_include_dirs != nil { | 
 | 		return android.PathsForModuleSrc(ctx, f.Properties.Target.Vendor.Override_export_include_dirs) | 
 | 	} else { | 
 | 		return android.PathsForModuleSrc(ctx, f.Properties.Export_include_dirs) | 
 | 	} | 
 | } | 
 |  | 
 | func (f *flagExporter) exportIncludes(ctx ModuleContext, inc string) { | 
 | 	includeDirs := f.exportedIncludes(ctx) | 
 | 	for _, dir := range includeDirs.Strings() { | 
 | 		f.flags = append(f.flags, inc+dir) | 
 | 	} | 
 | } | 
 |  | 
 | func (f *flagExporter) reexportFlags(flags []string) { | 
 | 	f.flags = append(f.flags, flags...) | 
 | } | 
 |  | 
 | func (f *flagExporter) reexportDeps(deps android.Paths) { | 
 | 	f.flagsDeps = append(f.flagsDeps, deps...) | 
 | } | 
 |  | 
 | func (f *flagExporter) exportedFlags() []string { | 
 | 	return f.flags | 
 | } | 
 |  | 
 | func (f *flagExporter) exportedFlagsDeps() android.Paths { | 
 | 	return f.flagsDeps | 
 | } | 
 |  | 
 | type exportedFlagsProducer interface { | 
 | 	exportedFlags() []string | 
 | 	exportedFlagsDeps() android.Paths | 
 | } | 
 |  | 
 | var _ exportedFlagsProducer = (*flagExporter)(nil) | 
 |  | 
 | // libraryDecorator wraps baseCompiler, baseLinker and baseInstaller to provide library-specific | 
 | // functionality: static vs. shared linkage, reusing object files for shared libraries | 
 | type libraryDecorator struct { | 
 | 	Properties        LibraryProperties | 
 | 	MutatedProperties LibraryMutatedProperties | 
 |  | 
 | 	// For reusing static library objects for shared library | 
 | 	reuseObjects       Objects | 
 | 	reuseExportedFlags []string | 
 | 	reuseExportedDeps  android.Paths | 
 |  | 
 | 	// table-of-contents file to optimize out relinking when possible | 
 | 	tocFile android.OptionalPath | 
 |  | 
 | 	flagExporter | 
 | 	stripper | 
 | 	relocationPacker | 
 |  | 
 | 	// If we're used as a whole_static_lib, our missing dependencies need | 
 | 	// to be given | 
 | 	wholeStaticMissingDeps []string | 
 |  | 
 | 	// For whole_static_libs | 
 | 	objects Objects | 
 |  | 
 | 	// Uses the module's name if empty, but can be overridden. Does not include | 
 | 	// shlib suffix. | 
 | 	libName string | 
 |  | 
 | 	sanitize *sanitize | 
 |  | 
 | 	sabi *sabi | 
 |  | 
 | 	// Output archive of gcno coverage information files | 
 | 	coverageOutputFile android.OptionalPath | 
 |  | 
 | 	// linked Source Abi Dump | 
 | 	sAbiOutputFile android.OptionalPath | 
 |  | 
 | 	// Source Abi Diff | 
 | 	sAbiDiff android.OptionalPath | 
 |  | 
 | 	// Location of the static library in the sysroot. Empty if the library is | 
 | 	// not included in the NDK. | 
 | 	ndkSysrootPath android.Path | 
 |  | 
 | 	// Decorated interafaces | 
 | 	*baseCompiler | 
 | 	*baseLinker | 
 | 	*baseInstaller | 
 | } | 
 |  | 
 | func (library *libraryDecorator) linkerProps() []interface{} { | 
 | 	var props []interface{} | 
 | 	props = append(props, library.baseLinker.linkerProps()...) | 
 | 	return append(props, | 
 | 		&library.Properties, | 
 | 		&library.MutatedProperties, | 
 | 		&library.flagExporter.Properties, | 
 | 		&library.stripper.StripProperties, | 
 | 		&library.relocationPacker.Properties) | 
 | } | 
 |  | 
 | func (library *libraryDecorator) linkerFlags(ctx ModuleContext, flags Flags) Flags { | 
 | 	flags = library.baseLinker.linkerFlags(ctx, flags) | 
 |  | 
 | 	// MinGW spits out warnings about -fPIC even for -fpie?!) being ignored because | 
 | 	// all code is position independent, and then those warnings get promoted to | 
 | 	// errors. | 
 | 	if !ctx.Windows() { | 
 | 		flags.CFlags = append(flags.CFlags, "-fPIC") | 
 | 	} | 
 |  | 
 | 	if library.static() { | 
 | 		flags.CFlags = append(flags.CFlags, library.Properties.Static.Cflags...) | 
 | 	} else if library.shared() { | 
 | 		flags.CFlags = append(flags.CFlags, library.Properties.Shared.Cflags...) | 
 | 	} | 
 |  | 
 | 	if library.shared() { | 
 | 		libName := library.getLibName(ctx) | 
 | 		// GCC for Android assumes that -shared means -Bsymbolic, use -Wl,-shared instead | 
 | 		sharedFlag := "-Wl,-shared" | 
 | 		if flags.Clang || ctx.Host() { | 
 | 			sharedFlag = "-shared" | 
 | 		} | 
 | 		var f []string | 
 | 		if ctx.toolchain().Bionic() { | 
 | 			f = append(f, | 
 | 				"-nostdlib", | 
 | 				"-Wl,--gc-sections", | 
 | 			) | 
 | 		} | 
 |  | 
 | 		if ctx.Darwin() { | 
 | 			f = append(f, | 
 | 				"-dynamiclib", | 
 | 				"-single_module", | 
 | 				"-install_name @rpath/"+libName+flags.Toolchain.ShlibSuffix(), | 
 | 			) | 
 | 			if ctx.Arch().ArchType == android.X86 { | 
 | 				f = append(f, | 
 | 					"-read_only_relocs suppress", | 
 | 				) | 
 | 			} | 
 | 		} else { | 
 | 			f = append(f, | 
 | 				sharedFlag, | 
 | 				"-Wl,-soname,"+libName+flags.Toolchain.ShlibSuffix()) | 
 | 		} | 
 |  | 
 | 		flags.LdFlags = append(f, flags.LdFlags...) | 
 | 	} | 
 |  | 
 | 	return flags | 
 | } | 
 |  | 
 | func (library *libraryDecorator) compilerFlags(ctx ModuleContext, flags Flags, deps PathDeps) Flags { | 
 | 	exportIncludeDirs := library.flagExporter.exportedIncludes(ctx) | 
 | 	if len(exportIncludeDirs) > 0 { | 
 | 		f := includeDirsToFlags(exportIncludeDirs) | 
 | 		flags.GlobalFlags = append(flags.GlobalFlags, f) | 
 | 		flags.YasmFlags = append(flags.YasmFlags, f) | 
 | 	} | 
 |  | 
 | 	return library.baseCompiler.compilerFlags(ctx, flags, deps) | 
 | } | 
 |  | 
 | func extractExportIncludesFromFlags(flags []string) []string { | 
 | 	// This method is used in the  generation of rules which produce | 
 | 	// abi-dumps for source files. Exported headers are needed to infer the | 
 | 	// abi exported by a library and filter out the rest of the abi dumped | 
 | 	// from a source. We extract the include flags exported by a library. | 
 | 	// This includes the flags exported which are re-exported from static | 
 | 	// library dependencies, exported header library dependencies and | 
 | 	// generated header dependencies. -isystem headers are not included | 
 | 	// since for bionic libraries, abi-filtering is taken care of by version | 
 | 	// scripts. | 
 | 	var exportedIncludes []string | 
 | 	for _, flag := range flags { | 
 | 		if strings.HasPrefix(flag, "-I") { | 
 | 			exportedIncludes = append(exportedIncludes, flag) | 
 | 		} | 
 | 	} | 
 | 	return exportedIncludes | 
 | } | 
 |  | 
 | func (library *libraryDecorator) compile(ctx ModuleContext, flags Flags, deps PathDeps) Objects { | 
 | 	if !library.buildShared() && !library.buildStatic() { | 
 | 		if len(library.baseCompiler.Properties.Srcs) > 0 { | 
 | 			ctx.PropertyErrorf("srcs", "cc_library_headers must not have any srcs") | 
 | 		} | 
 | 		if len(library.Properties.Static.Srcs) > 0 { | 
 | 			ctx.PropertyErrorf("static.srcs", "cc_library_headers must not have any srcs") | 
 | 		} | 
 | 		if len(library.Properties.Shared.Srcs) > 0 { | 
 | 			ctx.PropertyErrorf("shared.srcs", "cc_library_headers must not have any srcs") | 
 | 		} | 
 | 		return Objects{} | 
 | 	} | 
 | 	if ctx.createVndkSourceAbiDump() || library.sabi.Properties.CreateSAbiDumps { | 
 | 		exportIncludeDirs := library.flagExporter.exportedIncludes(ctx) | 
 | 		var SourceAbiFlags []string | 
 | 		for _, dir := range exportIncludeDirs.Strings() { | 
 | 			SourceAbiFlags = append(SourceAbiFlags, "-I"+dir) | 
 | 		} | 
 | 		for _, reexportedInclude := range extractExportIncludesFromFlags(library.sabi.Properties.ReexportedIncludeFlags) { | 
 | 			SourceAbiFlags = append(SourceAbiFlags, reexportedInclude) | 
 | 		} | 
 | 		flags.SAbiFlags = SourceAbiFlags | 
 | 		total_length := len(library.baseCompiler.Properties.Srcs) + len(deps.GeneratedSources) + len(library.Properties.Shared.Srcs) + | 
 | 			len(library.Properties.Static.Srcs) | 
 | 		if total_length > 0 { | 
 | 			flags.SAbiDump = true | 
 | 		} | 
 | 	} | 
 | 	objs := library.baseCompiler.compile(ctx, flags, deps) | 
 | 	library.reuseObjects = objs | 
 | 	buildFlags := flagsToBuilderFlags(flags) | 
 |  | 
 | 	if library.static() { | 
 | 		srcs := android.PathsForModuleSrc(ctx, library.Properties.Static.Srcs) | 
 | 		objs = objs.Append(compileObjs(ctx, buildFlags, android.DeviceStaticLibrary, | 
 | 			srcs, library.baseCompiler.pathDeps, library.baseCompiler.cFlagsDeps)) | 
 | 	} else if library.shared() { | 
 | 		srcs := android.PathsForModuleSrc(ctx, library.Properties.Shared.Srcs) | 
 | 		objs = objs.Append(compileObjs(ctx, buildFlags, android.DeviceSharedLibrary, | 
 | 			srcs, library.baseCompiler.pathDeps, library.baseCompiler.cFlagsDeps)) | 
 | 	} | 
 |  | 
 | 	return objs | 
 | } | 
 |  | 
 | type libraryInterface interface { | 
 | 	getWholeStaticMissingDeps() []string | 
 | 	static() bool | 
 | 	objs() Objects | 
 | 	reuseObjs() (Objects, []string, android.Paths) | 
 | 	toc() android.OptionalPath | 
 |  | 
 | 	// Returns true if the build options for the module have selected a static or shared build | 
 | 	buildStatic() bool | 
 | 	buildShared() bool | 
 |  | 
 | 	// Sets whether a specific variant is static or shared | 
 | 	setStatic() | 
 | 	setShared() | 
 | } | 
 |  | 
 | func (library *libraryDecorator) getLibName(ctx ModuleContext) string { | 
 | 	name := library.libName | 
 | 	if name == "" { | 
 | 		name = ctx.baseModuleName() | 
 | 	} | 
 |  | 
 | 	if ctx.isVndkExt() { | 
 | 		name = ctx.getVndkExtendsModuleName() | 
 | 	} | 
 |  | 
 | 	if ctx.Host() && Bool(library.Properties.Unique_host_soname) { | 
 | 		if !strings.HasSuffix(name, "-host") { | 
 | 			name = name + "-host" | 
 | 		} | 
 | 	} | 
 |  | 
 | 	return name + library.MutatedProperties.VariantName | 
 | } | 
 |  | 
 | func (library *libraryDecorator) linkerInit(ctx BaseModuleContext) { | 
 | 	location := InstallInSystem | 
 | 	if library.sanitize.inSanitizerDir() { | 
 | 		location = InstallInSanitizerDir | 
 | 	} | 
 | 	library.baseInstaller.location = location | 
 |  | 
 | 	library.baseLinker.linkerInit(ctx) | 
 |  | 
 | 	library.relocationPacker.packingInit(ctx) | 
 | } | 
 |  | 
 | func (library *libraryDecorator) linkerDeps(ctx DepsContext, deps Deps) Deps { | 
 | 	deps = library.baseLinker.linkerDeps(ctx, deps) | 
 |  | 
 | 	if library.static() { | 
 | 		deps.WholeStaticLibs = append(deps.WholeStaticLibs, | 
 | 			library.Properties.Static.Whole_static_libs...) | 
 | 		deps.StaticLibs = append(deps.StaticLibs, library.Properties.Static.Static_libs...) | 
 | 		deps.SharedLibs = append(deps.SharedLibs, library.Properties.Static.Shared_libs...) | 
 | 	} else if library.shared() { | 
 | 		if ctx.toolchain().Bionic() && !Bool(library.baseLinker.Properties.Nocrt) { | 
 | 			if !ctx.useSdk() { | 
 | 				deps.CrtBegin = "crtbegin_so" | 
 | 				deps.CrtEnd = "crtend_so" | 
 | 			} else { | 
 | 				// TODO(danalbert): Add generation of crt objects. | 
 | 				// For `sdk_version: "current"`, we don't actually have a | 
 | 				// freshly generated set of CRT objects. Use the last stable | 
 | 				// version. | 
 | 				version := ctx.sdkVersion() | 
 | 				if version == "current" { | 
 | 					version = getCurrentNdkPrebuiltVersion(ctx) | 
 | 				} | 
 | 				deps.CrtBegin = "ndk_crtbegin_so." + version | 
 | 				deps.CrtEnd = "ndk_crtend_so." + version | 
 | 			} | 
 | 		} | 
 | 		deps.WholeStaticLibs = append(deps.WholeStaticLibs, library.Properties.Shared.Whole_static_libs...) | 
 | 		deps.StaticLibs = append(deps.StaticLibs, library.Properties.Shared.Static_libs...) | 
 | 		deps.SharedLibs = append(deps.SharedLibs, library.Properties.Shared.Shared_libs...) | 
 | 	} | 
 | 	if ctx.useVndk() { | 
 | 		deps.WholeStaticLibs = removeListFromList(deps.WholeStaticLibs, library.baseLinker.Properties.Target.Vendor.Exclude_static_libs) | 
 | 		deps.SharedLibs = removeListFromList(deps.SharedLibs, library.baseLinker.Properties.Target.Vendor.Exclude_shared_libs) | 
 | 		deps.StaticLibs = removeListFromList(deps.StaticLibs, library.baseLinker.Properties.Target.Vendor.Exclude_static_libs) | 
 | 	} | 
 |  | 
 | 	android.ExtractSourceDeps(ctx, library.Properties.Version_script) | 
 | 	android.ExtractSourceDeps(ctx, library.Properties.Unexported_symbols_list) | 
 | 	android.ExtractSourceDeps(ctx, library.Properties.Force_symbols_not_weak_list) | 
 | 	android.ExtractSourceDeps(ctx, library.Properties.Force_symbols_weak_list) | 
 | 	android.ExtractSourceDeps(ctx, library.Properties.Target.Vendor.Version_script) | 
 |  | 
 | 	return deps | 
 | } | 
 |  | 
 | func (library *libraryDecorator) linkStatic(ctx ModuleContext, | 
 | 	flags Flags, deps PathDeps, objs Objects) android.Path { | 
 |  | 
 | 	library.objects = deps.WholeStaticLibObjs.Copy() | 
 | 	library.objects = library.objects.Append(objs) | 
 |  | 
 | 	fileName := ctx.ModuleName() + library.MutatedProperties.VariantName + staticLibraryExtension | 
 | 	outputFile := android.PathForModuleOut(ctx, fileName) | 
 | 	builderFlags := flagsToBuilderFlags(flags) | 
 |  | 
 | 	if Bool(library.baseLinker.Properties.Use_version_lib) && ctx.Host() { | 
 | 		versionedOutputFile := outputFile | 
 | 		outputFile = android.PathForModuleOut(ctx, "unversioned", fileName) | 
 | 		library.injectVersionSymbol(ctx, outputFile, versionedOutputFile) | 
 | 	} | 
 |  | 
 | 	TransformObjToStaticLib(ctx, library.objects.objFiles, builderFlags, outputFile, objs.tidyFiles) | 
 |  | 
 | 	library.coverageOutputFile = TransformCoverageFilesToLib(ctx, library.objects, builderFlags, | 
 | 		ctx.ModuleName()+library.MutatedProperties.VariantName) | 
 |  | 
 | 	library.wholeStaticMissingDeps = ctx.GetMissingDependencies() | 
 |  | 
 | 	ctx.CheckbuildFile(outputFile) | 
 |  | 
 | 	return outputFile | 
 | } | 
 |  | 
 | func (library *libraryDecorator) linkShared(ctx ModuleContext, | 
 | 	flags Flags, deps PathDeps, objs Objects) android.Path { | 
 |  | 
 | 	var linkerDeps android.Paths | 
 | 	linkerDeps = append(linkerDeps, flags.LdFlagsDeps...) | 
 |  | 
 | 	versionScript := ctx.ExpandOptionalSource(library.Properties.Version_script, "version_script") | 
 | 	unexportedSymbols := ctx.ExpandOptionalSource(library.Properties.Unexported_symbols_list, "unexported_symbols_list") | 
 | 	forceNotWeakSymbols := ctx.ExpandOptionalSource(library.Properties.Force_symbols_not_weak_list, "force_symbols_not_weak_list") | 
 | 	forceWeakSymbols := ctx.ExpandOptionalSource(library.Properties.Force_symbols_weak_list, "force_symbols_weak_list") | 
 | 	if ctx.useVndk() && library.Properties.Target.Vendor.Version_script != nil { | 
 | 		versionScript = ctx.ExpandOptionalSource(library.Properties.Target.Vendor.Version_script, "target.vendor.version_script") | 
 | 	} | 
 | 	if !ctx.Darwin() { | 
 | 		if versionScript.Valid() { | 
 | 			flags.LdFlags = append(flags.LdFlags, "-Wl,--version-script,"+versionScript.String()) | 
 | 			linkerDeps = append(linkerDeps, versionScript.Path()) | 
 | 			if library.sanitize.isSanitizerEnabled(cfi) { | 
 | 				cfiExportsMap := android.PathForSource(ctx, cfiExportsMapPath) | 
 | 				flags.LdFlags = append(flags.LdFlags, "-Wl,--version-script,"+cfiExportsMap.String()) | 
 | 				linkerDeps = append(linkerDeps, cfiExportsMap) | 
 | 			} | 
 | 		} | 
 | 		if unexportedSymbols.Valid() { | 
 | 			ctx.PropertyErrorf("unexported_symbols_list", "Only supported on Darwin") | 
 | 		} | 
 | 		if forceNotWeakSymbols.Valid() { | 
 | 			ctx.PropertyErrorf("force_symbols_not_weak_list", "Only supported on Darwin") | 
 | 		} | 
 | 		if forceWeakSymbols.Valid() { | 
 | 			ctx.PropertyErrorf("force_symbols_weak_list", "Only supported on Darwin") | 
 | 		} | 
 | 	} else { | 
 | 		if versionScript.Valid() { | 
 | 			ctx.PropertyErrorf("version_script", "Not supported on Darwin") | 
 | 		} | 
 | 		if unexportedSymbols.Valid() { | 
 | 			flags.LdFlags = append(flags.LdFlags, "-Wl,-unexported_symbols_list,"+unexportedSymbols.String()) | 
 | 			linkerDeps = append(linkerDeps, unexportedSymbols.Path()) | 
 | 		} | 
 | 		if forceNotWeakSymbols.Valid() { | 
 | 			flags.LdFlags = append(flags.LdFlags, "-Wl,-force_symbols_not_weak_list,"+forceNotWeakSymbols.String()) | 
 | 			linkerDeps = append(linkerDeps, forceNotWeakSymbols.Path()) | 
 | 		} | 
 | 		if forceWeakSymbols.Valid() { | 
 | 			flags.LdFlags = append(flags.LdFlags, "-Wl,-force_symbols_weak_list,"+forceWeakSymbols.String()) | 
 | 			linkerDeps = append(linkerDeps, forceWeakSymbols.Path()) | 
 | 		} | 
 | 	} | 
 |  | 
 | 	fileName := library.getLibName(ctx) + flags.Toolchain.ShlibSuffix() | 
 | 	outputFile := android.PathForModuleOut(ctx, fileName) | 
 | 	ret := outputFile | 
 |  | 
 | 	builderFlags := flagsToBuilderFlags(flags) | 
 |  | 
 | 	if !ctx.Darwin() && !ctx.Windows() { | 
 | 		// Optimize out relinking against shared libraries whose interface hasn't changed by | 
 | 		// depending on a table of contents file instead of the library itself. | 
 | 		tocPath := outputFile.RelPathString() | 
 | 		tocPath = pathtools.ReplaceExtension(tocPath, flags.Toolchain.ShlibSuffix()[1:]+".toc") | 
 | 		tocFile := android.PathForOutput(ctx, tocPath) | 
 | 		library.tocFile = android.OptionalPathForPath(tocFile) | 
 | 		TransformSharedObjectToToc(ctx, outputFile, tocFile, builderFlags) | 
 | 	} | 
 |  | 
 | 	if library.relocationPacker.needsPacking(ctx) { | 
 | 		packedOutputFile := outputFile | 
 | 		outputFile = android.PathForModuleOut(ctx, "unpacked", fileName) | 
 | 		library.relocationPacker.pack(ctx, outputFile, packedOutputFile, builderFlags) | 
 | 	} | 
 |  | 
 | 	if library.stripper.needsStrip(ctx) { | 
 | 		strippedOutputFile := outputFile | 
 | 		outputFile = android.PathForModuleOut(ctx, "unstripped", fileName) | 
 | 		library.stripper.strip(ctx, outputFile, strippedOutputFile, builderFlags) | 
 | 	} | 
 |  | 
 | 	if Bool(library.baseLinker.Properties.Use_version_lib) && ctx.Host() { | 
 | 		versionedOutputFile := outputFile | 
 | 		outputFile = android.PathForModuleOut(ctx, "unversioned", fileName) | 
 | 		library.injectVersionSymbol(ctx, outputFile, versionedOutputFile) | 
 | 	} | 
 |  | 
 | 	sharedLibs := deps.SharedLibs | 
 | 	sharedLibs = append(sharedLibs, deps.LateSharedLibs...) | 
 |  | 
 | 	linkerDeps = append(linkerDeps, deps.SharedLibsDeps...) | 
 | 	linkerDeps = append(linkerDeps, deps.LateSharedLibsDeps...) | 
 | 	linkerDeps = append(linkerDeps, objs.tidyFiles...) | 
 |  | 
 | 	TransformObjToDynamicBinary(ctx, objs.objFiles, sharedLibs, | 
 | 		deps.StaticLibs, deps.LateStaticLibs, deps.WholeStaticLibs, | 
 | 		linkerDeps, deps.CrtBegin, deps.CrtEnd, false, builderFlags, outputFile) | 
 |  | 
 | 	objs.coverageFiles = append(objs.coverageFiles, deps.StaticLibObjs.coverageFiles...) | 
 | 	objs.coverageFiles = append(objs.coverageFiles, deps.WholeStaticLibObjs.coverageFiles...) | 
 |  | 
 | 	objs.sAbiDumpFiles = append(objs.sAbiDumpFiles, deps.StaticLibObjs.sAbiDumpFiles...) | 
 | 	objs.sAbiDumpFiles = append(objs.sAbiDumpFiles, deps.WholeStaticLibObjs.sAbiDumpFiles...) | 
 |  | 
 | 	library.coverageOutputFile = TransformCoverageFilesToLib(ctx, objs, builderFlags, library.getLibName(ctx)) | 
 | 	library.linkSAbiDumpFiles(ctx, objs, fileName, ret) | 
 |  | 
 | 	return ret | 
 | } | 
 |  | 
 | func (library *libraryDecorator) linkSAbiDumpFiles(ctx ModuleContext, objs Objects, fileName string, soFile android.Path) { | 
 | 	//Also take into account object re-use. | 
 | 	if len(objs.sAbiDumpFiles) > 0 && ctx.createVndkSourceAbiDump() { | 
 | 		vndkVersion := ctx.DeviceConfig().PlatformVndkVersion() | 
 | 		if ver := ctx.DeviceConfig().VndkVersion(); ver != "" && ver != "current" { | 
 | 			vndkVersion = ver | 
 | 		} | 
 |  | 
 | 		refSourceDumpFile := android.PathForVndkRefAbiDump(ctx, vndkVersion, fileName, vndkVsNdk(ctx), true) | 
 | 		exportIncludeDirs := library.flagExporter.exportedIncludes(ctx) | 
 | 		var SourceAbiFlags []string | 
 | 		for _, dir := range exportIncludeDirs.Strings() { | 
 | 			SourceAbiFlags = append(SourceAbiFlags, "-I"+dir) | 
 | 		} | 
 | 		for _, reexportedInclude := range extractExportIncludesFromFlags(library.sabi.Properties.ReexportedIncludeFlags) { | 
 | 			SourceAbiFlags = append(SourceAbiFlags, reexportedInclude) | 
 | 		} | 
 | 		exportedHeaderFlags := strings.Join(SourceAbiFlags, " ") | 
 | 		library.sAbiOutputFile = TransformDumpToLinkedDump(ctx, objs.sAbiDumpFiles, soFile, fileName, exportedHeaderFlags) | 
 | 		if refSourceDumpFile.Valid() { | 
 | 			unzippedRefDump := UnzipRefDump(ctx, refSourceDumpFile.Path(), fileName) | 
 | 			library.sAbiDiff = SourceAbiDiff(ctx, library.sAbiOutputFile.Path(), | 
 | 				unzippedRefDump, fileName, exportedHeaderFlags, ctx.isVndkExt()) | 
 | 		} | 
 | 	} | 
 | } | 
 |  | 
 | func vndkVsNdk(ctx ModuleContext) bool { | 
 | 	if inList(ctx.baseModuleName(), llndkLibraries) { | 
 | 		return false | 
 | 	} | 
 | 	return true | 
 | } | 
 |  | 
 | func (library *libraryDecorator) link(ctx ModuleContext, | 
 | 	flags Flags, deps PathDeps, objs Objects) android.Path { | 
 |  | 
 | 	objs = deps.Objs.Copy().Append(objs) | 
 | 	var out android.Path | 
 | 	if library.static() || library.header() { | 
 | 		out = library.linkStatic(ctx, flags, deps, objs) | 
 | 	} else { | 
 | 		out = library.linkShared(ctx, flags, deps, objs) | 
 | 	} | 
 |  | 
 | 	library.exportIncludes(ctx, "-I") | 
 | 	library.reexportFlags(deps.ReexportedFlags) | 
 | 	library.reexportDeps(deps.ReexportedFlagsDeps) | 
 |  | 
 | 	if Bool(library.Properties.Aidl.Export_aidl_headers) { | 
 | 		if library.baseCompiler.hasSrcExt(".aidl") { | 
 | 			flags := []string{ | 
 | 				"-I" + android.PathForModuleGen(ctx, "aidl").String(), | 
 | 			} | 
 | 			library.reexportFlags(flags) | 
 | 			library.reuseExportedFlags = append(library.reuseExportedFlags, flags...) | 
 | 			library.reexportDeps(library.baseCompiler.pathDeps) // TODO: restrict to aidl deps | 
 | 			library.reuseExportedDeps = append(library.reuseExportedDeps, library.baseCompiler.pathDeps...) | 
 | 		} | 
 | 	} | 
 |  | 
 | 	if Bool(library.Properties.Proto.Export_proto_headers) { | 
 | 		if library.baseCompiler.hasSrcExt(".proto") { | 
 | 			includes := []string{} | 
 | 			if flags.ProtoRoot { | 
 | 				includes = append(includes, "-I"+android.ProtoSubDir(ctx).String()) | 
 | 			} | 
 | 			includes = append(includes, "-I"+android.ProtoDir(ctx).String()) | 
 | 			library.reexportFlags(includes) | 
 | 			library.reuseExportedFlags = append(library.reuseExportedFlags, includes...) | 
 | 			library.reexportDeps(library.baseCompiler.pathDeps) // TODO: restrict to proto deps | 
 | 			library.reuseExportedDeps = append(library.reuseExportedDeps, library.baseCompiler.pathDeps...) | 
 | 		} | 
 | 	} | 
 |  | 
 | 	return out | 
 | } | 
 |  | 
 | func (library *libraryDecorator) buildStatic() bool { | 
 | 	return library.MutatedProperties.BuildStatic && BoolDefault(library.Properties.Static.Enabled, true) | 
 | } | 
 |  | 
 | func (library *libraryDecorator) buildShared() bool { | 
 | 	return library.MutatedProperties.BuildShared && BoolDefault(library.Properties.Shared.Enabled, true) | 
 | } | 
 |  | 
 | func (library *libraryDecorator) getWholeStaticMissingDeps() []string { | 
 | 	return append([]string(nil), library.wholeStaticMissingDeps...) | 
 | } | 
 |  | 
 | func (library *libraryDecorator) objs() Objects { | 
 | 	return library.objects | 
 | } | 
 |  | 
 | func (library *libraryDecorator) reuseObjs() (Objects, []string, android.Paths) { | 
 | 	return library.reuseObjects, library.reuseExportedFlags, library.reuseExportedDeps | 
 | } | 
 |  | 
 | func (library *libraryDecorator) toc() android.OptionalPath { | 
 | 	return library.tocFile | 
 | } | 
 |  | 
 | func (library *libraryDecorator) install(ctx ModuleContext, file android.Path) { | 
 | 	if library.shared() { | 
 | 		if ctx.Device() && ctx.useVndk() { | 
 | 			if ctx.isVndkSp() { | 
 | 				library.baseInstaller.subDir = "vndk-sp" | 
 | 			} else if ctx.isVndk() { | 
 | 				library.baseInstaller.subDir = "vndk" | 
 | 			} | 
 |  | 
 | 			// Append a version to vndk or vndk-sp directories on the system partition. | 
 | 			if ctx.isVndk() && !ctx.isVndkExt() { | 
 | 				vndkVersion := ctx.DeviceConfig().PlatformVndkVersion() | 
 | 				if vndkVersion != "current" && vndkVersion != "" { | 
 | 					library.baseInstaller.subDir += "-" + vndkVersion | 
 | 				} | 
 | 			} | 
 | 		} | 
 | 		library.baseInstaller.install(ctx, file) | 
 | 	} | 
 |  | 
 | 	if Bool(library.Properties.Static_ndk_lib) && library.static() && | 
 | 		!ctx.useVndk() && ctx.Device() && | 
 | 		library.sanitize.isUnsanitizedVariant() { | 
 | 		installPath := getNdkSysrootBase(ctx).Join( | 
 | 			ctx, "usr/lib", config.NDKTriple(ctx.toolchain()), file.Base()) | 
 |  | 
 | 		ctx.ModuleBuild(pctx, android.ModuleBuildParams{ | 
 | 			Rule:        android.Cp, | 
 | 			Description: "install " + installPath.Base(), | 
 | 			Output:      installPath, | 
 | 			Input:       file, | 
 | 		}) | 
 |  | 
 | 		library.ndkSysrootPath = installPath | 
 | 	} | 
 | } | 
 |  | 
 | func (library *libraryDecorator) static() bool { | 
 | 	return library.MutatedProperties.VariantIsStatic | 
 | } | 
 |  | 
 | func (library *libraryDecorator) shared() bool { | 
 | 	return library.MutatedProperties.VariantIsShared | 
 | } | 
 |  | 
 | func (library *libraryDecorator) header() bool { | 
 | 	return !library.static() && !library.shared() | 
 | } | 
 |  | 
 | func (library *libraryDecorator) setStatic() { | 
 | 	library.MutatedProperties.VariantIsStatic = true | 
 | 	library.MutatedProperties.VariantIsShared = false | 
 | } | 
 |  | 
 | func (library *libraryDecorator) setShared() { | 
 | 	library.MutatedProperties.VariantIsStatic = false | 
 | 	library.MutatedProperties.VariantIsShared = true | 
 | } | 
 |  | 
 | func (library *libraryDecorator) BuildOnlyStatic() { | 
 | 	library.MutatedProperties.BuildShared = false | 
 | } | 
 |  | 
 | func (library *libraryDecorator) BuildOnlyShared() { | 
 | 	library.MutatedProperties.BuildStatic = false | 
 | } | 
 |  | 
 | func (library *libraryDecorator) HeaderOnly() { | 
 | 	library.MutatedProperties.BuildShared = false | 
 | 	library.MutatedProperties.BuildStatic = false | 
 | } | 
 |  | 
 | func NewLibrary(hod android.HostOrDeviceSupported) (*Module, *libraryDecorator) { | 
 | 	module := newModule(hod, android.MultilibBoth) | 
 |  | 
 | 	library := &libraryDecorator{ | 
 | 		MutatedProperties: LibraryMutatedProperties{ | 
 | 			BuildShared: true, | 
 | 			BuildStatic: true, | 
 | 		}, | 
 | 		baseCompiler:  NewBaseCompiler(), | 
 | 		baseLinker:    NewBaseLinker(), | 
 | 		baseInstaller: NewBaseInstaller("lib", "lib64", InstallInSystem), | 
 | 		sanitize:      module.sanitize, | 
 | 		sabi:          module.sabi, | 
 | 	} | 
 |  | 
 | 	module.compiler = library | 
 | 	module.linker = library | 
 | 	module.installer = library | 
 |  | 
 | 	return module, library | 
 | } | 
 |  | 
 | // connects a shared library to a static library in order to reuse its .o files to avoid | 
 | // compiling source files twice. | 
 | func reuseStaticLibrary(mctx android.BottomUpMutatorContext, static, shared *Module) { | 
 | 	if staticCompiler, ok := static.compiler.(*libraryDecorator); ok { | 
 | 		sharedCompiler := shared.compiler.(*libraryDecorator) | 
 | 		if len(staticCompiler.Properties.Static.Cflags) == 0 && | 
 | 			len(sharedCompiler.Properties.Shared.Cflags) == 0 { | 
 |  | 
 | 			mctx.AddInterVariantDependency(reuseObjTag, shared, static) | 
 | 			sharedCompiler.baseCompiler.Properties.OriginalSrcs = | 
 | 				sharedCompiler.baseCompiler.Properties.Srcs | 
 | 			sharedCompiler.baseCompiler.Properties.Srcs = nil | 
 | 			sharedCompiler.baseCompiler.Properties.Generated_sources = nil | 
 | 		} | 
 | 	} | 
 | } | 
 |  | 
 | func linkageMutator(mctx android.BottomUpMutatorContext) { | 
 | 	if m, ok := mctx.Module().(*Module); ok && m.linker != nil { | 
 | 		if library, ok := m.linker.(libraryInterface); ok { | 
 | 			var modules []blueprint.Module | 
 | 			if library.buildStatic() && library.buildShared() { | 
 | 				modules = mctx.CreateLocalVariations("static", "shared") | 
 | 				static := modules[0].(*Module) | 
 | 				shared := modules[1].(*Module) | 
 |  | 
 | 				static.linker.(libraryInterface).setStatic() | 
 | 				shared.linker.(libraryInterface).setShared() | 
 |  | 
 | 				reuseStaticLibrary(mctx, static, shared) | 
 |  | 
 | 			} else if library.buildStatic() { | 
 | 				modules = mctx.CreateLocalVariations("static") | 
 | 				modules[0].(*Module).linker.(libraryInterface).setStatic() | 
 | 			} else if library.buildShared() { | 
 | 				modules = mctx.CreateLocalVariations("shared") | 
 | 				modules[0].(*Module).linker.(libraryInterface).setShared() | 
 | 			} | 
 | 		} | 
 | 	} | 
 | } |