Fix hidden API flags in com.android.i18n (699a0048) · Commits · e / os / android_build_soong

java/bootclasspath_fragment.go

+24 −49

Original line number	Diff line number	Diff line
		@@ -501,73 +501,48 @@ func (b *BootclasspathFragmentModule) getImageConfig(ctx android.EarlyModuleCont
		return imageConfig
		}

		// canPerformHiddenAPIProcessing determines whether hidden API processing should be performed.
		//
		// A temporary workaround to avoid existing bootclasspath_fragments that do not provide the
		// appropriate information needed for hidden API processing breaking the build.
		// TODO(b/179354495): Remove this workaround.
		func (b *BootclasspathFragmentModule) canPerformHiddenAPIProcessing(ctx android.ModuleContext) bool {
		// Hidden API processing is always enabled in tests.
		if ctx.Config().TestProductVariables != nil {
		return true
		}
		// A module that has fragments should have access to the information it needs in order to perform
		// hidden API processing.
		if len(b.properties.Fragments) != 0 {
		return true
		}

		// The art bootclasspath fragment does not depend on any other fragments but already supports
		// hidden API processing.
		imageName := proptools.String(b.properties.Image_name)
		if imageName == "art" {
		return true
		}

		// Disable it for everything else.
		return false
		}

		// generateHiddenAPIBuildActions generates all the hidden API related build rules.
		func (b BootclasspathFragmentModule) generateHiddenAPIBuildActions(ctx android.ModuleContext, contents []android.Module) HiddenAPIFlagOutput {

		// A temporary workaround to avoid existing bootclasspath_fragments that do not provide the
		// appropriate information needed for hidden API processing breaking the build.
		if !b.canPerformHiddenAPIProcessing(ctx) {
		// Nothing to do.
		return nil
		}

		// Create hidden API input structure.
		input := b.createHiddenAPIFlagInput(ctx, contents)

		// Performing hidden API processing without stubs is not supported and it is unlikely to ever be
		// required as the whole point of adding something to the bootclasspath fragment is to add it to
		// the bootclasspath in order to be used by something else in the system. Without any stubs it
		// cannot do that.
		if len(input.StubDexJarsByKind) == 0 {
		return nil
		}

		// Store the information for use by other modules.
		bootclasspathApiInfo := bootclasspathApiInfo{stubJarsByKind: input.StubDexJarsByKind}
		ctx.SetProvider(bootclasspathApiInfoProvider, bootclasspathApiInfo)

		var output *HiddenAPIFlagOutput

		// Hidden API processing is conditional as a temporary workaround as not all
		// bootclasspath_fragments provide the appropriate information needed for hidden API processing
		// which leads to breakages of the build.
		// TODO(b/179354495): Stop hidden API processing being conditional once all bootclasspath_fragment
		// modules have been updated to support it.
		if input.canPerformHiddenAPIProcessing(ctx, b.properties) {
		// Get the content modules that contribute to the hidden API processing.
		hiddenAPIModules := gatherHiddenAPIModuleFromContents(ctx, contents)

		// Delegate the production of the hidden API all-flags.csv file to a module type specific method.
		common := ctx.Module().(commonBootclasspathFragment)
		output := common.produceHiddenAPIAllFlagsFile(ctx, hiddenAPIModules, input)
		output = common.produceHiddenAPIAllFlagsFile(ctx, hiddenAPIModules, input)
		}

		// Initialize a HiddenAPIInfo structure and provide it for use by other modules.
		// Initialize a HiddenAPIInfo structure.
		hiddenAPIInfo := HiddenAPIInfo{
		// The monolithic hidden API processing needs access to the flag files from all the fragments.
		// The monolithic hidden API processing needs access to the flag files that override the default
		// flags from all the fragments whether or not they actually perform their own hidden API flag
		// generation. That is because the monolithic hidden API processing uses those flag files to
		// perform its own flag generation.
		FlagFilesByCategory: input.FlagFilesByCategory,
		}

		if output != nil {
		// The monolithic hidden API processing also needs access to all the output files produced by
		// hidden API processing of this fragment.
		HiddenAPIFlagOutput: *output,
		hiddenAPIInfo.HiddenAPIFlagOutput = *output
		}

		// Provide it for use by other modules.
		ctx.SetProvider(HiddenAPIInfoProvider, hiddenAPIInfo)

		return output

java/hiddenapi_modular.go

+37 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@ import (

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

		// Contains support for processing hiddenAPI in a modular fashion.
		@@ -395,6 +396,42 @@ func newHiddenAPIFlagInput() HiddenAPIFlagInput {
		return input
		}

		// canPerformHiddenAPIProcessing determines whether hidden API processing should be performed.
		//
		// A temporary workaround to avoid existing bootclasspath_fragments that do not provide the
		// appropriate information needed for hidden API processing breaking the build.
		// TODO(b/179354495): Remove this workaround.
		func (i *HiddenAPIFlagInput) canPerformHiddenAPIProcessing(ctx android.ModuleContext, properties bootclasspathFragmentProperties) bool {
		// Performing hidden API processing without stubs is not supported and it is unlikely to ever be
		// required as the whole point of adding something to the bootclasspath fragment is to add it to
		// the bootclasspath in order to be used by something else in the system. Without any stubs it
		// cannot do that.
		if len(i.StubDexJarsByKind) == 0 {
		return false
		}

		// Hidden API processing is always enabled in tests.
		if ctx.Config().TestProductVariables != nil {
		return true
		}

		// A module that has fragments should have access to the information it needs in order to perform
		// hidden API processing.
		if len(properties.Fragments) != 0 {
		return true
		}

		// The art bootclasspath fragment does not depend on any other fragments but already supports
		// hidden API processing.
		imageName := proptools.String(properties.Image_name)
		if imageName == "art" {
		return true
		}

		// Disable it for everything else.
		return false
		}

		// gatherStubLibInfo gathers information from the stub libs needed by hidden API processing from the
		// dependencies added in hiddenAPIAddStubLibDependencies.
		//

java/hiddenapi_monolithic.go

+16 −5

Original line number	Diff line number	Diff line
		@@ -70,11 +70,22 @@ func newMonolithicHiddenAPIInfo(ctx android.ModuleContext, flagFilesByCategory F
		// append appends all the files from the supplied info to the corresponding files in this struct.
		func (i MonolithicHiddenAPIInfo) append(other HiddenAPIInfo) {
		i.FlagsFilesByCategory.append(other.FlagFilesByCategory)
		i.StubFlagsPaths = append(i.StubFlagsPaths, other.StubFlagsPath)
		i.AnnotationFlagsPaths = append(i.AnnotationFlagsPaths, other.AnnotationFlagsPath)
		i.MetadataPaths = append(i.MetadataPaths, other.MetadataPath)
		i.IndexPaths = append(i.IndexPaths, other.IndexPath)
		i.AllFlagsPaths = append(i.AllFlagsPaths, other.AllFlagsPath)

		// The output may not be set if the bootclasspath_fragment has not yet been updated to support
		// hidden API processing.
		// TODO(b/179354495): Switch back to append once all bootclasspath_fragment modules have been
		// updated to support hidden API processing properly.
		appendIfNotNil := func(paths android.Paths, path android.Path) android.Paths {
		if path == nil {
		return paths
		}
		return append(paths, path)
		}
		i.StubFlagsPaths = appendIfNotNil(i.StubFlagsPaths, other.StubFlagsPath)
		i.AnnotationFlagsPaths = appendIfNotNil(i.AnnotationFlagsPaths, other.AnnotationFlagsPath)
		i.MetadataPaths = appendIfNotNil(i.MetadataPaths, other.MetadataPath)
		i.IndexPaths = appendIfNotNil(i.IndexPaths, other.IndexPath)
		i.AllFlagsPaths = appendIfNotNil(i.AllFlagsPaths, other.AllFlagsPath)
		}

		// dedup removes duplicates in all the paths, while maintaining the order in which they were