Merge changes I9e94662d,I4b4e0dc8 am: 254aee4843 am: 3c4acc4279

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/1574746

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I4321f7fb64832e85399a20bea30a5a07ca6e93eb

java/dexpreopt_bootjars.go

@@ -435,6 +435,11 @@ func (d *dexpreoptBootJars) GenerateSingletonBuildActions(ctx android.SingletonC
 // Inspect this module to see if it contains a bootclasspath dex jar.
 // Note that the same jar may occur in multiple modules.
 // This logic is tested in the apex package to avoid import cycle apex <-> java.
+//
+// This is similar to logic in isModuleInConfiguredList() so any changes needed here are likely to
+// be needed there too.
+//
+// TODO(b/177892522): Avoid having to perform this type of check or if necessary dedup it.
 func getBootImageJar(ctx android.SingletonContext, image *bootImageConfig, module android.Module) (int, android.Path) {
 	name := ctx.ModuleName(module)
 

java/hiddenapi_singleton.go

@@ -213,6 +213,10 @@ func stubFlagsRule(ctx android.SingletonContext) {
 
 	var bootDexJars android.Paths
 
+	// Get the configured non-updatable and updatable boot jars.
+	nonUpdatableBootJars := ctx.Config().NonUpdatableBootJars()
+	updatableBootJars := ctx.Config().UpdatableBootJars()
+
 	ctx.VisitAllModules(func(module android.Module) {
 		// Collect dex jar paths for the modules listed above.
 		if j, ok := module.(Dependency); ok {
@@ -227,11 +231,8 @@ func stubFlagsRule(ctx android.SingletonContext) {
 		// Collect dex jar paths for modules that had hiddenapi encode called on them.
 		if h, ok := module.(hiddenAPIIntf); ok {
 			if jar := h.bootDexJar(); jar != nil {
-				// For a java lib included in an APEX, only take the one built for
-				// the platform variant, and skip the variants for APEXes.
-				// Otherwise, the hiddenapi tool will complain about duplicated classes
-				apexInfo := ctx.ModuleProvider(module, android.ApexInfoProvider).(android.ApexInfo)
-				if !apexInfo.IsForPlatform() {
+				if !isModuleInConfiguredList(ctx, module, nonUpdatableBootJars) &&
+					!isModuleInConfiguredList(ctx, module, updatableBootJars) {
 					return
 				}
 
@@ -280,6 +281,47 @@ func stubFlagsRule(ctx android.SingletonContext) {
 	rule.Build("hiddenAPIStubFlagsFile", "hiddenapi stub flags")
 }
 
+// Checks to see whether the supplied module variant is in the list of boot jars.
+//
+// This is similar to logic in getBootImageJar() so any changes needed here are likely to be needed
+// there too.
+//
+// TODO(b/179354495): Avoid having to perform this type of check or if necessary dedup it.
+func isModuleInConfiguredList(ctx android.SingletonContext, module android.Module, configuredBootJars android.ConfiguredJarList) bool {
+	name := ctx.ModuleName(module)
+
+	// Strip a prebuilt_ prefix so that this can match a prebuilt module that has not been renamed.
+	name = android.RemoveOptionalPrebuiltPrefix(name)
+
+	// Ignore any module that is not listed in the boot image configuration.
+	index := configuredBootJars.IndexOfJar(name)
+	if index == -1 {
+		return false
+	}
+
+	// It is an error if the module is not an ApexModule.
+	if _, ok := module.(android.ApexModule); !ok {
+		ctx.Errorf("module %q configured in boot jars does not support being added to an apex", module)
+		return false
+	}
+
+	apexInfo := ctx.ModuleProvider(module, android.ApexInfoProvider).(android.ApexInfo)
+
+	// Now match the apex part of the boot image configuration.
+	requiredApex := configuredBootJars.Apex(index)
+	if requiredApex == "platform" {
+		if len(apexInfo.InApexes) != 0 {
+			// A platform variant is required but this is for an apex so ignore it.
+			return false
+		}
+	} else if !apexInfo.InApexByBaseName(requiredApex) {
+		// An apex variant for a specific apex is required but this is the wrong apex.
+		return false
+	}
+
+	return true
+}
+
 func prebuiltFlagsRule(ctx android.SingletonContext) android.Path {
 	outputPath := hiddenAPISingletonPaths(ctx).flags
 	inputPath := android.PathForSource(ctx, ctx.Config().PrebuiltHiddenApiDir(ctx), "hiddenapi-flags.csv")

java/java.go

@@ -40,18 +40,21 @@ func init() {
 	// Register sdk member types.
 	android.RegisterSdkMemberType(javaHeaderLibsSdkMemberType)
 
+	// Export implementation classes jar as part of the sdk.
+	exportImplementationClassesJar := func(_ android.SdkMemberContext, j *Library) android.Path {
+		implementationJars := j.ImplementationAndResourcesJars()
+		if len(implementationJars) != 1 {
+			panic(fmt.Errorf("there must be only one implementation jar from %q", j.Name()))
+		}
+		return implementationJars[0]
+	}
+
 	// Register java implementation libraries for use only in module_exports (not sdk).
 	android.RegisterSdkMemberType(&librarySdkMemberType{
 		android.SdkMemberTypeBase{
 			PropertyName: "java_libs",
 		},
-		func(_ android.SdkMemberContext, j *Library) android.Path {
-			implementationJars := j.ImplementationAndResourcesJars()
-			if len(implementationJars) != 1 {
-				panic(fmt.Errorf("there must be only one implementation jar from %q", j.Name()))
-			}
-			return implementationJars[0]
-		},
+		exportImplementationClassesJar,
 		sdkSnapshotFilePathForJar,
 		copyEverythingToSnapshot,
 	})
@@ -72,19 +75,11 @@ func init() {
 			PropertyName: "java_boot_libs",
 			SupportsSdk:  true,
 		},
-		func(ctx android.SdkMemberContext, j *Library) android.Path {
-			// Java boot libs are only provided in the SDK to provide access to their dex implementation
-			// jar for use by dexpreopting and boot jars package check. They do not need to provide an
-			// actual implementation jar but the java_import will need a file that exists so just copy an
-			// empty file. Any attempt to use that file as a jar will cause a build error.
-			return ctx.SnapshotBuilder().EmptyFile()
-		},
-		func(osPrefix, name string) string {
-			// Create a special name for the implementation jar to try and provide some useful information
-			// to a developer that attempts to compile against this.
-			// TODO(b/175714559): Provide a proper error message in Soong not ninja.
-			return filepath.Join(osPrefix, "java_boot_libs", "snapshot", "jars", "are", "invalid", name+jarFileSuffix)
-		},
+		// Temporarily export implementation classes jar for java_boot_libs as it is required for the
+		// hiddenapi processing.
+		// TODO(b/179354495): Revert once hiddenapi processing has been modularized.
+		exportImplementationClassesJar,
+		sdkSnapshotFilePathForJar,
 		onlyCopyJarToSnapshot,
 	})