| // 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 |
| } |
| } |
| |
| 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 |
| 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. |
| 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() (blueprint.Module, []interface{}) { |
| module, _ := NewLibrary(android.HostAndDeviceSupported) |
| return module.Init() |
| } |
| |
| // Module factory for static libraries |
| func libraryStaticFactory() (blueprint.Module, []interface{}) { |
| module, library := NewLibrary(android.HostAndDeviceSupported) |
| library.BuildOnlyStatic() |
| return module.Init() |
| } |
| |
| // Module factory for shared libraries |
| func librarySharedFactory() (blueprint.Module, []interface{}) { |
| module, library := NewLibrary(android.HostAndDeviceSupported) |
| library.BuildOnlyShared() |
| return module.Init() |
| } |
| |
| // Module factory for host static libraries |
| func libraryHostStaticFactory() (blueprint.Module, []interface{}) { |
| module, library := NewLibrary(android.HostSupported) |
| library.BuildOnlyStatic() |
| return module.Init() |
| } |
| |
| // Module factory for host shared libraries |
| func libraryHostSharedFactory() (blueprint.Module, []interface{}) { |
| module, library := NewLibrary(android.HostSupported) |
| library.BuildOnlyShared() |
| return module.Init() |
| } |
| |
| // Module factory for header-only libraries |
| func libraryHeaderFactory() (blueprint.Module, []interface{}) { |
| 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.Vendor() && f.Properties.Target.Vendor.Export_include_dirs != nil { |
| return android.PathsForModuleSrc(ctx, f.Properties.Target.Vendor.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 |
| |
| // 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) 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) |
| } |
| |
| 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 && ctx.Device()) { |
| exportIncludeDirs := android.PathsForModuleSrc(ctx, library.flagExporter.Properties.Export_include_dirs) |
| var SourceAbiFlags []string |
| for _, dir := range exportIncludeDirs.Strings() { |
| SourceAbiFlags = append(SourceAbiFlags, "-I "+dir) |
| } |
| |
| 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.deps)) |
| } else if library.shared() { |
| srcs := android.PathsForModuleSrc(ctx, library.Properties.Shared.Srcs) |
| objs = objs.Append(compileObjs(ctx, buildFlags, android.DeviceSharedLibrary, |
| srcs, library.baseCompiler.deps)) |
| } |
| |
| 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.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.sdk() { |
| 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...) |
| } |
| |
| 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) |
| |
| outputFile := android.PathForModuleOut(ctx, |
| ctx.ModuleName()+library.MutatedProperties.VariantName+staticLibraryExtension) |
| builderFlags := flagsToBuilderFlags(flags) |
| |
| 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 |
| |
| versionScript := android.OptionalPathForModuleSrc(ctx, library.Properties.Version_script) |
| unexportedSymbols := android.OptionalPathForModuleSrc(ctx, library.Properties.Unexported_symbols_list) |
| forceNotWeakSymbols := android.OptionalPathForModuleSrc(ctx, library.Properties.Force_symbols_not_weak_list) |
| forceWeakSymbols := android.OptionalPathForModuleSrc(ctx, library.Properties.Force_symbols_weak_list) |
| if !ctx.Darwin() { |
| if versionScript.Valid() { |
| flags.LdFlags = append(flags.LdFlags, "-Wl,--version-script,"+versionScript.String()) |
| linkerDeps = append(linkerDeps, versionScript.Path()) |
| } |
| 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) |
| } |
| |
| sharedLibs := deps.SharedLibs |
| sharedLibs = append(sharedLibs, deps.LateSharedLibs...) |
| |
| // TODO(danalbert): Clean this up when soong supports prebuilts. |
| if strings.HasPrefix(ctx.selectedStl(), "ndk_libc++") { |
| libDir := getNdkStlLibDir(ctx, flags.Toolchain, "libc++") |
| |
| if strings.HasSuffix(ctx.selectedStl(), "_shared") { |
| deps.StaticLibs = append(deps.StaticLibs, |
| libDir.Join(ctx, "libandroid_support.a")) |
| } else { |
| deps.StaticLibs = append(deps.StaticLibs, |
| libDir.Join(ctx, "libc++abi.a"), |
| libDir.Join(ctx, "libandroid_support.a")) |
| } |
| |
| if ctx.Arch().ArchType == android.Arm { |
| deps.StaticLibs = append(deps.StaticLibs, |
| libDir.Join(ctx, "libunwind.a")) |
| } |
| } |
| |
| 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) |
| |
| return ret |
| } |
| |
| func (library *libraryDecorator) linkSAbiDumpFiles(ctx ModuleContext, objs Objects, fileName string) { |
| //Also take into account object re-use. |
| if len(objs.sAbiDumpFiles) > 0 && ctx.createVndkSourceAbiDump() { |
| refSourceDumpFile := android.PathForVndkRefAbiDump(ctx, "current", fileName, vndkVsNdk(ctx), true) |
| versionScript := android.OptionalPathForModuleSrc(ctx, library.Properties.Version_script) |
| var symbolFile android.OptionalPath |
| if versionScript.Valid() { |
| symbolFile = versionScript |
| } |
| exportIncludeDirs := android.PathsForModuleSrc(ctx, library.flagExporter.Properties.Export_include_dirs) |
| var SourceAbiFlags []string |
| for _, dir := range exportIncludeDirs.Strings() { |
| SourceAbiFlags = append(SourceAbiFlags, "-I "+dir) |
| } |
| exportedHeaderFlags := strings.Join(SourceAbiFlags, " ") |
| library.sAbiOutputFile = TransformDumpToLinkedDump(ctx, objs.sAbiDumpFiles, symbolFile, "current", fileName, exportedHeaderFlags) |
| if refSourceDumpFile.Valid() { |
| library.sAbiDiff = SourceAbiDiff(ctx, library.sAbiOutputFile.Path(), refSourceDumpFile.Path(), fileName) |
| } |
| } |
| } |
| |
| func vndkVsNdk(ctx ModuleContext) bool { |
| if inList(ctx.baseModuleName(), config.LLndkLibraries()) { |
| return false |
| } |
| return true |
| } |
| |
| func (library *libraryDecorator) link(ctx ModuleContext, |
| flags Flags, deps PathDeps, objs Objects) android.Path { |
| |
| objs = objs.Append(deps.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 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.deps) // TODO: restrict to aidl deps |
| library.reuseExportedDeps = append(library.reuseExportedDeps, library.baseCompiler.deps...) |
| } |
| } |
| |
| if library.Properties.Proto.Export_proto_headers { |
| if library.baseCompiler.hasSrcExt(".proto") { |
| flags := []string{ |
| "-I" + protoSubDir(ctx).String(), |
| "-I" + protoDir(ctx).String(), |
| } |
| library.reexportFlags(flags) |
| library.reuseExportedFlags = append(library.reuseExportedFlags, flags...) |
| library.reexportDeps(library.baseCompiler.deps) // TODO: restrict to proto deps |
| library.reuseExportedDeps = append(library.reuseExportedDeps, library.baseCompiler.deps...) |
| } |
| } |
| |
| return out |
| } |
| |
| func (library *libraryDecorator) buildStatic() bool { |
| return library.MutatedProperties.BuildStatic && |
| (library.Properties.Static.Enabled == nil || *library.Properties.Static.Enabled) |
| } |
| |
| func (library *libraryDecorator) buildShared() bool { |
| return library.MutatedProperties.BuildShared && |
| (library.Properties.Shared.Enabled == nil || *library.Properties.Shared.Enabled) |
| } |
| |
| func (library *libraryDecorator) getWholeStaticMissingDeps() []string { |
| return 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() { |
| library.baseInstaller.install(ctx, file) |
| } |
| } |
| |
| 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() |
| } |
| } |
| } |
| } |
