| /* |
| * Copyright (C) 2020 The Android Open Source Project |
| * |
| * 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 com.android.server.pm.dex; |
| |
| import static com.android.server.pm.PackageManagerService.PLATFORM_PACKAGE_NAME; |
| |
| import android.content.pm.IPackageManager; |
| import android.os.RemoteException; |
| import android.util.Log; |
| import android.util.Slog; |
| |
| import dalvik.system.BaseDexClassLoader; |
| import dalvik.system.VMRuntime; |
| |
| import java.util.Map; |
| |
| /** |
| * Reports dex file use to the package manager on behalf of system server. |
| */ |
| public class SystemServerDexLoadReporter implements BaseDexClassLoader.Reporter { |
| private static final String TAG = "SystemServerDexLoadReporter"; |
| |
| private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); |
| |
| private final IPackageManager mPackageManager; |
| |
| private SystemServerDexLoadReporter(IPackageManager pm) { |
| mPackageManager = pm; |
| } |
| |
| @Override |
| public void report(Map<String, String> classLoaderContextMap) { |
| if (DEBUG) { |
| Slog.i(TAG, "Reporting " + classLoaderContextMap); |
| } |
| if (classLoaderContextMap.isEmpty()) { |
| Slog.wtf(TAG, "Bad call to DexLoadReporter: empty classLoaderContextMap"); |
| return; |
| } |
| |
| try { |
| mPackageManager.notifyDexLoad( |
| PLATFORM_PACKAGE_NAME, |
| classLoaderContextMap, |
| VMRuntime.getRuntime().vmInstructionSet()); |
| } catch (RemoteException ignored) { |
| // We're in system server, it can't happen. |
| } |
| } |
| |
| /** |
| * Configures system server dex file reporting. |
| * <p>The method will install a reporter in the BaseDexClassLoader and also |
| * force the reporting of any dex files already loaded by the system server. |
| */ |
| public static void configureSystemServerDexReporter(IPackageManager pm) { |
| Slog.i(TAG, "Configuring system server dex reporter"); |
| |
| SystemServerDexLoadReporter reporter = new SystemServerDexLoadReporter(pm); |
| BaseDexClassLoader.setReporter(reporter); |
| ClassLoader currrentClassLoader = reporter.getClass().getClassLoader(); |
| if (currrentClassLoader instanceof BaseDexClassLoader) { |
| ((BaseDexClassLoader) currrentClassLoader).reportClassLoaderChain(); |
| } else { |
| Slog.wtf(TAG, "System server class loader is not a BaseDexClassLoader. type=" |
| + currrentClassLoader.getClass().getName()); |
| } |
| } |
| } |