Make registerDexModule a nop regardless ART Service is enabled or not. (d2a82123) · Commits · e / os / android_frameworks_base

core/java/android/content/pm/PackageManager.java

+2 −18

Original line number	Diff line number	Diff line
		@@ -10134,25 +10134,9 @@ public abstract class PackageManager {

		/**
		* Register an application dex module with the package manager.
		* The package manager will keep track of the given module for future optimizations.
		*
		* Dex module optimizations will disable the classpath checking at runtime. The client bares
		* the responsibility to ensure that the static assumptions on classes in the optimized code
		* hold at runtime (e.g. there's no duplicate classes in the classpath).
		*
		* Note that the package manager already keeps track of dex modules loaded with
		* {@link dalvik.system.DexClassLoader} and {@link dalvik.system.PathClassLoader}.
		* This can be called for an eager registration.
		*
		* The call might take a while and the results will be posted on the main thread, using
		* the given callback.
		*
		* If the module is intended to be shared with other apps, make sure that the file
		* permissions allow for it.
		* If at registration time the permissions allow for others to read it, the module would
		* be marked as a shared module which might undergo a different optimization strategy.
		* (usually shared modules will generated larger optimizations artifacts,
		* taking more disk space).
		* This call no longer does anything. If a callback is given it is called with a false success
		* value.
		*
		* @param dexModulePath the absolute path of the dex module.
		* @param callback if not null, {@link DexModuleRegisterCallback#onDexModuleRegistered} will

services/core/java/com/android/server/pm/PackageManagerService.java

+12 −26

Original line number	Diff line number	Diff line
		@@ -5561,32 +5561,18 @@ public class PackageManagerService implements PackageSender, TestUtilityService
		public void registerDexModule(String packageName, String dexModulePath,
		boolean isSharedModule,
		IDexModuleRegisterCallback callback) {
		if (useArtService()) {
		// ART Service currently doesn't support this explicit dexopting and instead relies
		// on background dexopt for secondary dex files. This API is problematic since it
		// doesn't provide the correct classloader context.
		// ART Service doesn't support this explicit dexopting and instead relies on background
		// dexopt for secondary dex files. For compat parity between ART Service and the legacy
		// code it's disabled for both.
		//
		// Also, this API is problematic anyway since it doesn't provide the correct classloader
		// context, so it is hard to produce dexopt artifacts that the runtime can load
		// successfully.
		Slog.i(TAG,
		"Ignored unsupported registerDexModule call for " + dexModulePath + " in "
		+ packageName);
		return;
		}

		int userId = UserHandle.getCallingUserId();
		ApplicationInfo ai = snapshot().getApplicationInfo(packageName, /flags/ 0, userId);
		DexManager.RegisterDexModuleResult result;
		if (ai == null) {
		Slog.w(PackageManagerService.TAG,
		"Registering a dex module for a package that does not exist for the" +
		" calling user. package=" + packageName + ", user=" + userId);
		result = new DexManager.RegisterDexModuleResult(false, "Package not installed");
		} else {
		try {
		result = mDexManager.registerDexModule(
		ai, dexModulePath, isSharedModule, userId);
		} catch (LegacyDexoptDisabledException e) {
		throw new RuntimeException(e);
		}
		}
		DexManager.RegisterDexModuleResult result = new DexManager.RegisterDexModuleResult(
		false, "registerDexModule call not supported since Android U");

		if (callback != null) {
		mHandler.post(() -> {

services/core/java/com/android/server/pm/dex/DexManager.java

+0 −57

Original line number	Diff line number	Diff line
		@@ -16,7 +16,6 @@

		package com.android.server.pm.dex;

		import static com.android.server.pm.InstructionSets.getAppDexInstructionSets;
		import static com.android.server.pm.PackageManagerService.PLATFORM_PACKAGE_NAME;
		import static com.android.server.pm.dex.PackageDexUsage.DexUseInfo;
		import static com.android.server.pm.dex.PackageDexUsage.PackageUseInfo;
		@@ -659,62 +658,6 @@ public class DexManager {
		}
		}

		// TODO(calin): questionable API in the presence of class loaders context. Needs amends as the
		// compilation happening here will use a pessimistic context.
		public RegisterDexModuleResult registerDexModule(ApplicationInfo info, String dexPath,
		boolean isSharedModule, int userId) throws LegacyDexoptDisabledException {
		// Find the owning package record.
		DexSearchResult searchResult = getDexPackage(info, dexPath, userId);

		if (searchResult.mOutcome == DEX_SEARCH_NOT_FOUND) {
		return new RegisterDexModuleResult(false, "Package not found");
		}
		if (!info.packageName.equals(searchResult.mOwningPackageName)) {
		return new RegisterDexModuleResult(false, "Dex path does not belong to package");
		}
		if (searchResult.mOutcome == DEX_SEARCH_FOUND_PRIMARY \|\|
		searchResult.mOutcome == DEX_SEARCH_FOUND_SPLIT) {
		return new RegisterDexModuleResult(false, "Main apks cannot be registered");
		}

		// We found the package. Now record the usage for all declared ISAs.
		boolean update = false;
		// If this is a shared module set the loading package to an arbitrary package name
		// so that we can mark that module as usedByOthers.
		String loadingPackage = isSharedModule ? ".shared.module" : searchResult.mOwningPackageName;
		for (String isa : getAppDexInstructionSets(info.primaryCpuAbi, info.secondaryCpuAbi)) {
		boolean newUpdate = mPackageDexUsage.record(searchResult.mOwningPackageName,
		dexPath, userId, isa, /primaryOrSplit/ false,
		loadingPackage,
		PackageDexUsage.VARIABLE_CLASS_LOADER_CONTEXT,
		/overwriteCLC=/ false);
		update \|= newUpdate;
		}
		if (update) {
		mPackageDexUsage.maybeWriteAsync();
		}

		DexUseInfo dexUseInfo = mPackageDexUsage.getPackageUseInfo(searchResult.mOwningPackageName)
		.getDexUseInfoMap().get(dexPath);

		// Try to optimize the package according to the install reason.
		DexoptOptions options = new DexoptOptions(info.packageName,
		PackageManagerService.REASON_INSTALL, /flags/0);

		int result = mPackageDexOptimizer.dexOptSecondaryDexPath(info, dexPath, dexUseInfo,
		options);

		// If we fail to optimize the package log an error but don't propagate the error
		// back to the app. The app cannot do much about it and the background job
		// will rety again when it executes.
		// TODO(calin): there might be some value to return the error here but it may
		// cause red herrings since that doesn't mean the app cannot use the module.
		if (result != PackageDexOptimizer.DEX_OPT_FAILED) {
		Slog.e(TAG, "Failed to optimize dex module " + dexPath);
		}
		return new RegisterDexModuleResult(true, "Dex module registered successfully");
		}

		/**
		* Return all packages that contain records of secondary dex files.
		*/

services/tests/PackageManagerServiceTests/server/src/com/android/server/pm/PackageManagerTests.java

+0 −105

Original line number	Diff line number	Diff line
		@@ -84,9 +84,6 @@ import java.io.FileInputStream;
		import java.io.IOException;
		import java.io.InputStream;
		import java.io.OutputStream;
		import java.nio.file.Files;
		import java.nio.file.Paths;
		import java.nio.file.StandardCopyOption;
		import java.util.Collections;
		import java.util.HashSet;
		import java.util.List;
		@@ -2904,108 +2901,6 @@ public class PackageManagerTests extends AndroidTestCase {
		PackageInfo.INSTALL_LOCATION_UNSPECIFIED);
		}

		private static class TestDexModuleRegisterCallback
		extends PackageManager.DexModuleRegisterCallback {
		private String mDexModulePath = null;
		private boolean mSuccess = false;
		private String mMessage = null;
		CountDownLatch doneSignal = new CountDownLatch(1);

		@Override
		public void onDexModuleRegistered(String dexModulePath, boolean success, String message) {
		mDexModulePath = dexModulePath;
		mSuccess = success;
		mMessage = message;
		doneSignal.countDown();
		}

		boolean waitTillDone() {
		long startTime = System.currentTimeMillis();
		while (System.currentTimeMillis() - startTime < MAX_WAIT_TIME) {
		try {
		return doneSignal.await(MAX_WAIT_TIME, TimeUnit.MILLISECONDS);
		} catch (InterruptedException e) {
		Log.i(TAG, "Interrupted during sleep", e);
		}
		}
		return false;
		}

		}

		// Verify that the base code path cannot be registered.
		public void testRegisterDexModuleBaseCode() throws Exception {
		PackageManager pm = getPm();
		ApplicationInfo info = getContext().getApplicationInfo();
		TestDexModuleRegisterCallback callback = new TestDexModuleRegisterCallback();
		pm.registerDexModule(info.getBaseCodePath(), callback);
		assertTrue(callback.waitTillDone());
		assertEquals(info.getBaseCodePath(), callback.mDexModulePath);
		assertFalse("BaseCodePath should not be registered", callback.mSuccess);
		}

		// Verify that modules which are not own by the calling package are not registered.
		public void testRegisterDexModuleNotOwningModule() throws Exception {
		TestDexModuleRegisterCallback callback = new TestDexModuleRegisterCallback();
		String moduleBelongingToOtherPackage = "/data/user/0/com.google.android.gms/module.apk";
		getPm().registerDexModule(moduleBelongingToOtherPackage, callback);
		assertTrue(callback.waitTillDone());
		assertEquals(moduleBelongingToOtherPackage, callback.mDexModulePath);
		assertTrue(callback.waitTillDone());
		assertFalse("Only modules belonging to the calling package can be registered",
		callback.mSuccess);
		}

		// Verify that modules owned by the package are successfully registered.
		public void testRegisterDexModuleSuccessfully() throws Exception {
		ApplicationInfo info = getContext().getApplicationInfo();
		// Copy the main apk into the data folder and use it as a "module".
		File dexModuleDir = new File(info.dataDir, "module-dir");
		File dexModule = new File(dexModuleDir, "module.apk");
		try {
		assertNotNull(FileUtils.createDir(
		dexModuleDir.getParentFile(), dexModuleDir.getName()));
		Files.copy(Paths.get(info.getBaseCodePath()), dexModule.toPath(),
		StandardCopyOption.REPLACE_EXISTING);
		TestDexModuleRegisterCallback callback = new TestDexModuleRegisterCallback();
		getPm().registerDexModule(dexModule.toString(), callback);
		assertTrue(callback.waitTillDone());
		assertEquals(dexModule.toString(), callback.mDexModulePath);
		assertTrue(callback.waitTillDone());
		assertTrue(callback.mMessage, callback.mSuccess);

		// NOTE:
		// This actually verifies internal behaviour which might change. It's not
		// ideal but it's the best we can do since there's no other place we can currently
		// write a better test.
		for(String isa : getAppDexInstructionSets(info)) {
		Files.exists(Paths.get(dexModuleDir.toString(), "oat", isa, "module.odex"));
		Files.exists(Paths.get(dexModuleDir.toString(), "oat", isa, "module.vdex"));
		}
		} finally {
		FileUtils.deleteContentsAndDir(dexModuleDir);
		}
		}

		// If the module does not exist on disk we should get a failure.
		public void testRegisterDexModuleNotExists() throws Exception {
		ApplicationInfo info = getContext().getApplicationInfo();
		String nonExistentApk = Paths.get(info.dataDir, "non-existent.apk").toString();
		TestDexModuleRegisterCallback callback = new TestDexModuleRegisterCallback();
		getPm().registerDexModule(nonExistentApk, callback);
		assertTrue(callback.waitTillDone());
		assertEquals(nonExistentApk, callback.mDexModulePath);
		assertTrue(callback.waitTillDone());
		assertFalse("DexModule registration should fail", callback.mSuccess);
		}

		// If the module does not exist on disk we should get a failure.
		public void testRegisterDexModuleNotExistsNoCallback() throws Exception {
		ApplicationInfo info = getContext().getApplicationInfo();
		String nonExistentApk = Paths.get(info.dataDir, "non-existent.apk").toString();
		getPm().registerDexModule(nonExistentApk, null);
		}

		@LargeTest
		public void testMinInstallableTargetSdkPass() throws Exception {
		// Test installing a package that meets the minimum installable sdk requirement