Build rust libraries against C ModuleLib API surface. (604f376d) · Commits · e / os / android_build_soong

cc/cc.go

+3 −3

Original line number	Diff line number	Diff line
		@@ -2954,7 +2954,7 @@ func (c *Module) depsToPaths(ctx android.ModuleContext) PathDeps {
		ctx.VisitDirectDeps(func(dep android.Module) {
		depName := ctx.OtherModuleName(dep)
		if apiLibrary, ok := targetOrigModuleList[depName]; ok {
		if shouldUseStubForApex(ctx, dep) {
		if ShouldUseStubForApex(ctx, dep) {
		skipModuleList[depName] = true
		} else {
		skipModuleList[apiLibrary] = true
		@@ -3307,7 +3307,7 @@ func (c *Module) depsToPaths(ctx android.ModuleContext) PathDeps {
		return depPaths
		}

		func shouldUseStubForApex(ctx android.ModuleContext, dep android.Module) bool {
		func ShouldUseStubForApex(ctx android.ModuleContext, dep android.Module) bool {
		depName := ctx.OtherModuleName(dep)
		thisModule, ok := ctx.Module().(android.ApexModule)
		if !ok {
		@@ -3409,7 +3409,7 @@ func ChooseStubOrImpl(ctx android.ModuleContext, dep android.Module) (SharedLibr

		if !libDepTag.explicitlyVersioned && len(sharedLibraryStubsInfo.SharedStubLibraries) > 0 {
		// when to use (unspecified) stubs, use the latest one.
		if shouldUseStubForApex(ctx, dep) {
		if ShouldUseStubForApex(ctx, dep) {
		stubs := sharedLibraryStubsInfo.SharedStubLibraries
		toUse := stubs[len(stubs)-1]
		sharedLibraryInfo = toUse.SharedLibraryInfo

rust/rust.go

+70 −3

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@ import (
		"android/soong/cc"
		cc_config "android/soong/cc/config"
		"android/soong/fuzz"
		"android/soong/multitree"
		"android/soong/rust/config"
		"android/soong/snapshot"
		)
		@@ -1136,10 +1137,56 @@ func (mod *Module) depsToPaths(ctx android.ModuleContext) PathDeps {
		mod.apexSdkVersion = android.FutureApiLevel
		}

		skipModuleList := map[string]bool{}

		var apiImportInfo multitree.ApiImportInfo
		hasApiImportInfo := false

		ctx.VisitDirectDeps(func(dep android.Module) {
		if dep.Name() == "api_imports" {
		apiImportInfo = ctx.OtherModuleProvider(dep, multitree.ApiImportsProvider).(multitree.ApiImportInfo)
		hasApiImportInfo = true
		}
		})

		if hasApiImportInfo {
		targetStubModuleList := map[string]string{}
		targetOrigModuleList := map[string]string{}

		// Search for dependency which both original module and API imported library with APEX stub exists
		ctx.VisitDirectDeps(func(dep android.Module) {
		depName := ctx.OtherModuleName(dep)
		if apiLibrary, ok := apiImportInfo.ApexSharedLibs[depName]; ok {
		targetStubModuleList[apiLibrary] = depName
		}
		})
		ctx.VisitDirectDeps(func(dep android.Module) {
		depName := ctx.OtherModuleName(dep)
		if origLibrary, ok := targetStubModuleList[depName]; ok {
		targetOrigModuleList[origLibrary] = depName
		}
		})

		// Decide which library should be used between original and API imported library
		ctx.VisitDirectDeps(func(dep android.Module) {
		depName := ctx.OtherModuleName(dep)
		if apiLibrary, ok := targetOrigModuleList[depName]; ok {
		if cc.ShouldUseStubForApex(ctx, dep) {
		skipModuleList[depName] = true
		} else {
		skipModuleList[apiLibrary] = true
		}
		}
		})
		}

		ctx.VisitDirectDeps(func(dep android.Module) {
		depName := ctx.OtherModuleName(dep)
		depTag := ctx.OtherModuleDependencyTag(dep)

		if _, exists := skipModuleList[depName]; exists {
		return
		}
		if rustDep, ok := dep.(*Module); ok && !rustDep.CcLibraryInterface() {
		//Handle Rust Modules
		makeLibName := cc.MakeLibName(ctx, mod, rustDep, depName+rustDep.Properties.RustSubName)
		@@ -1395,6 +1442,16 @@ func linkPathFromFilePath(filepath android.Path) string {
		return strings.Split(filepath.String(), filepath.Base())[0]
		}

		// usePublicApi returns true if the rust variant should link against NDK (publicapi)
		func (r *Module) usePublicApi() bool {
		return r.Device() && r.UseSdk()
		}

		// useVendorApi returns true if the rust variant should link against LLNDK (vendorapi)
		func (r *Module) useVendorApi() bool {
		return r.Device() && (r.InVendor() \|\| r.InProduct())
		}

		func (mod *Module) DepsMutator(actx android.BottomUpMutatorContext) {
		ctx := &depsContext{
		BottomUpMutatorContext: actx,
		@@ -1405,9 +1462,11 @@ func (mod *Module) DepsMutator(actx android.BottomUpMutatorContext) {
		var snapshotInfo *cc.SnapshotInfo

		apiImportInfo := cc.GetApiImports(mod, actx)
		if mod.usePublicApi() \|\| mod.useVendorApi() {
		for idx, lib := range deps.SharedLibs {
		deps.SharedLibs[idx] = cc.GetReplaceModuleName(lib, apiImportInfo.SharedLibs)
		}
		}

		if ctx.Os() == android.Android {
		deps.SharedLibs, _ = cc.RewriteLibs(mod, &snapshotInfo, actx, ctx.Config(), deps.SharedLibs)
		@@ -1486,9 +1545,17 @@ func (mod *Module) DepsMutator(actx android.BottomUpMutatorContext) {
		variations := []blueprint.Variation{
		{Mutator: "link", Variation: "shared"},
		}
		// For core variant, add a dep on the implementation (if it exists) and its .apiimport (if it exists)
		// GenerateAndroidBuildActions will pick the correct impl/stub based on the api_domain boundary
		if _, ok := apiImportInfo.ApexSharedLibs[name]; !ok \|\| ctx.OtherModuleExists(name) {
		cc.AddSharedLibDependenciesWithVersions(ctx, mod, variations, depTag, name, version, false)
		}

		if apiLibraryName, ok := apiImportInfo.ApexSharedLibs[name]; ok {
		cc.AddSharedLibDependenciesWithVersions(ctx, mod, variations, depTag, apiLibraryName, version, false)
		}
		}

		for _, lib := range deps.WholeStaticLibs {
		depTag := cc.StaticDepTag(true)
		lib = cc.GetReplaceModuleName(lib, cc.GetSnapshot(mod, &snapshotInfo, actx).StaticLibs)