10318162abcbd07a0472989df43e00e353fac731bCalin Juravle/* 20318162abcbd07a0472989df43e00e353fac731bCalin Juravle * Copyright (C) 2016 The Android Open Source Project 30318162abcbd07a0472989df43e00e353fac731bCalin Juravle * 40318162abcbd07a0472989df43e00e353fac731bCalin Juravle * Licensed under the Apache License, Version 2.0 (the "License"); 50318162abcbd07a0472989df43e00e353fac731bCalin Juravle * you may not use this file except in compliance with the License. 60318162abcbd07a0472989df43e00e353fac731bCalin Juravle * You may obtain a copy of the License at 70318162abcbd07a0472989df43e00e353fac731bCalin Juravle * 80318162abcbd07a0472989df43e00e353fac731bCalin Juravle * http://www.apache.org/licenses/LICENSE-2.0 90318162abcbd07a0472989df43e00e353fac731bCalin Juravle * 100318162abcbd07a0472989df43e00e353fac731bCalin Juravle * Unless required by applicable law or agreed to in writing, software 110318162abcbd07a0472989df43e00e353fac731bCalin Juravle * distributed under the License is distributed on an "AS IS" BASIS, 120318162abcbd07a0472989df43e00e353fac731bCalin Juravle * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 130318162abcbd07a0472989df43e00e353fac731bCalin Juravle * See the License for the specific language governing permissions and 140318162abcbd07a0472989df43e00e353fac731bCalin Juravle * limitations under the License 150318162abcbd07a0472989df43e00e353fac731bCalin Juravle */ 160318162abcbd07a0472989df43e00e353fac731bCalin Juravle 170318162abcbd07a0472989df43e00e353fac731bCalin Juravlepackage com.android.server.pm.dex; 180318162abcbd07a0472989df43e00e353fac731bCalin Juravle 190318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport android.util.AtomicFile; 200318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport android.util.Slog; 210318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport android.os.Build; 220318162abcbd07a0472989df43e00e353fac731bCalin Juravle 230318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport com.android.internal.annotations.GuardedBy; 240318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport com.android.internal.util.FastPrintWriter; 250318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport com.android.server.pm.AbstractStatsBase; 260318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport com.android.server.pm.PackageManagerServiceUtils; 270318162abcbd07a0472989df43e00e353fac731bCalin Juravle 280318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport java.io.BufferedReader; 290318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport java.io.FileNotFoundException; 300318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport java.io.FileOutputStream; 310318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport java.io.InputStreamReader; 320318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport java.io.IOException; 330318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport java.io.OutputStreamWriter; 340318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport java.io.Reader; 350318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport java.io.StringWriter; 360318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport java.io.Writer; 37535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravleimport java.util.Arrays; 3852a452cf685c56dc6872dbb19e822736484f672fCalin Juravleimport java.util.Collection; 39535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravleimport java.util.Collections; 400318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport java.util.Iterator; 410318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport java.util.HashMap; 420318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport java.util.HashSet; 43535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravleimport java.util.List; 440318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport java.util.Map; 45607223f3b7a1c4dc3ac995f742f8d2da50d85ffcNarayan Kamathimport java.util.Objects; 460318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport java.util.Set; 470318162abcbd07a0472989df43e00e353fac731bCalin Juravle 480318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport dalvik.system.VMRuntime; 490318162abcbd07a0472989df43e00e353fac731bCalin Juravleimport libcore.io.IoUtils; 500318162abcbd07a0472989df43e00e353fac731bCalin Juravle 510318162abcbd07a0472989df43e00e353fac731bCalin Juravle/** 520318162abcbd07a0472989df43e00e353fac731bCalin Juravle * Stat file which store usage information about dex files. 530318162abcbd07a0472989df43e00e353fac731bCalin Juravle */ 540318162abcbd07a0472989df43e00e353fac731bCalin Juravlepublic class PackageDexUsage extends AbstractStatsBase<Void> { 550318162abcbd07a0472989df43e00e353fac731bCalin Juravle private final static String TAG = "PackageDexUsage"; 560318162abcbd07a0472989df43e00e353fac731bCalin Juravle 57f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // We support previous version to ensure that the usage list remains valid cross OTAs. 58535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle private final static int PACKAGE_DEX_USAGE_SUPPORTED_VERSION_1 = 1; 5952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // Version 2 added: 6052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // - the list of packages that load the dex files 6152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // - class loader contexts for secondary dex files 6252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // - usage for all code paths (including splits) 63f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle private final static int PACKAGE_DEX_USAGE_SUPPORTED_VERSION_2 = 2; 64535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle 6552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle private final static int PACKAGE_DEX_USAGE_VERSION = PACKAGE_DEX_USAGE_SUPPORTED_VERSION_2; 6652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle 670318162abcbd07a0472989df43e00e353fac731bCalin Juravle private final static String PACKAGE_DEX_USAGE_VERSION_HEADER = 680318162abcbd07a0472989df43e00e353fac731bCalin Juravle "PACKAGE_MANAGER__PACKAGE_DEX_USAGE__"; 690318162abcbd07a0472989df43e00e353fac731bCalin Juravle 700318162abcbd07a0472989df43e00e353fac731bCalin Juravle private final static String SPLIT_CHAR = ","; 7152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle private final static String CODE_PATH_LINE_CHAR = "+"; 720318162abcbd07a0472989df43e00e353fac731bCalin Juravle private final static String DEX_LINE_CHAR = "#"; 73535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle private final static String LOADING_PACKAGE_CHAR = "@"; 74f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle 75f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // One of the things we record about dex files is the class loader context that was used to 76f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // load them. That should be stable but if it changes we don't keep track of variable contexts. 77f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // Instead we put a special marker in the dex usage file in order to recognize the case and 78f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // skip optimizations on that dex files. 79f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle /*package*/ static final String VARIABLE_CLASS_LOADER_CONTEXT = 80f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle "=VariableClassLoaderContext="; 81f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // The marker used for unsupported class loader contexts. 82f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle /*package*/ static final String UNSUPPORTED_CLASS_LOADER_CONTEXT = 83f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle "=UnsupportedClassLoaderContext="; 84f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // The markers used for unknown class loader contexts. This can happen if the dex file was 85f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // recorded in a previous version and we didn't have a chance to update its usage. 86f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle /*package*/ static final String UNKNOWN_CLASS_LOADER_CONTEXT = 87f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle "=UnknownClassLoaderContext="; 88f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle 890318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Map which structures the information we have on a package. 900318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Maps package name to package data (which stores info about UsedByOtherApps and 910318162abcbd07a0472989df43e00e353fac731bCalin Juravle // secondary dex files.). 920318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Access to this map needs synchronized. 930318162abcbd07a0472989df43e00e353fac731bCalin Juravle @GuardedBy("mPackageUseInfoMap") 94535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle private final Map<String, PackageUseInfo> mPackageUseInfoMap; 950318162abcbd07a0472989df43e00e353fac731bCalin Juravle 960318162abcbd07a0472989df43e00e353fac731bCalin Juravle public PackageDexUsage() { 970318162abcbd07a0472989df43e00e353fac731bCalin Juravle super("package-dex-usage.list", "PackageDexUsage_DiskWriter", /*lock*/ false); 980318162abcbd07a0472989df43e00e353fac731bCalin Juravle mPackageUseInfoMap = new HashMap<>(); 990318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 1000318162abcbd07a0472989df43e00e353fac731bCalin Juravle 1010318162abcbd07a0472989df43e00e353fac731bCalin Juravle /** 1020318162abcbd07a0472989df43e00e353fac731bCalin Juravle * Record a dex file load. 1030318162abcbd07a0472989df43e00e353fac731bCalin Juravle * 1040318162abcbd07a0472989df43e00e353fac731bCalin Juravle * Note this is called when apps load dex files and as such it should return 1050318162abcbd07a0472989df43e00e353fac731bCalin Juravle * as fast as possible. 1060318162abcbd07a0472989df43e00e353fac731bCalin Juravle * 107535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle * @param owningPackageName the package owning the dex path 1080318162abcbd07a0472989df43e00e353fac731bCalin Juravle * @param dexPath the path of the dex files being loaded 1090318162abcbd07a0472989df43e00e353fac731bCalin Juravle * @param ownerUserId the user id which runs the code loading the dex files 1100318162abcbd07a0472989df43e00e353fac731bCalin Juravle * @param loaderIsa the ISA of the app loading the dex files 1110318162abcbd07a0472989df43e00e353fac731bCalin Juravle * @param isUsedByOtherApps whether or not this dex file was not loaded by its owning package 1120318162abcbd07a0472989df43e00e353fac731bCalin Juravle * @param primaryOrSplit whether or not the dex file is a primary/split dex. True indicates 1130318162abcbd07a0472989df43e00e353fac731bCalin Juravle * the file is either primary or a split. False indicates the file is secondary dex. 114535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle * @param loadingPackageName the package performing the load. Recorded only if it is different 115535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle * than {@param owningPackageName}. 1160318162abcbd07a0472989df43e00e353fac731bCalin Juravle * @return true if the dex load constitutes new information, or false if this information 1170318162abcbd07a0472989df43e00e353fac731bCalin Juravle * has been seen before. 1180318162abcbd07a0472989df43e00e353fac731bCalin Juravle */ 1190318162abcbd07a0472989df43e00e353fac731bCalin Juravle public boolean record(String owningPackageName, String dexPath, int ownerUserId, 120535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle String loaderIsa, boolean isUsedByOtherApps, boolean primaryOrSplit, 121f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle String loadingPackageName, String classLoaderContext) { 1220318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (!PackageManagerServiceUtils.checkISA(loaderIsa)) { 1230318162abcbd07a0472989df43e00e353fac731bCalin Juravle throw new IllegalArgumentException("loaderIsa " + loaderIsa + " is unsupported"); 1240318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 125f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle if (classLoaderContext == null) { 126f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle throw new IllegalArgumentException("Null classLoaderContext"); 127f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle } 128f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle 1290318162abcbd07a0472989df43e00e353fac731bCalin Juravle synchronized (mPackageUseInfoMap) { 1300318162abcbd07a0472989df43e00e353fac731bCalin Juravle PackageUseInfo packageUseInfo = mPackageUseInfoMap.get(owningPackageName); 1310318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (packageUseInfo == null) { 1320318162abcbd07a0472989df43e00e353fac731bCalin Juravle // This is the first time we see the package. 1330318162abcbd07a0472989df43e00e353fac731bCalin Juravle packageUseInfo = new PackageUseInfo(); 1340318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (primaryOrSplit) { 1350318162abcbd07a0472989df43e00e353fac731bCalin Juravle // If we have a primary or a split apk, set isUsedByOtherApps. 1360318162abcbd07a0472989df43e00e353fac731bCalin Juravle // We do not need to record the loaderIsa or the owner because we compile 1370318162abcbd07a0472989df43e00e353fac731bCalin Juravle // primaries for all users and all ISAs. 13852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle packageUseInfo.mergeCodePathUsedByOtherApps(dexPath, isUsedByOtherApps, 13952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle owningPackageName, loadingPackageName); 1400318162abcbd07a0472989df43e00e353fac731bCalin Juravle } else { 1410318162abcbd07a0472989df43e00e353fac731bCalin Juravle // For secondary dex files record the loaderISA and the owner. We'll need 1420318162abcbd07a0472989df43e00e353fac731bCalin Juravle // to know under which user to compile and for what ISA. 143f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle DexUseInfo newData = new DexUseInfo(isUsedByOtherApps, ownerUserId, 144f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle classLoaderContext, loaderIsa); 145535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle packageUseInfo.mDexUseInfoMap.put(dexPath, newData); 146535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle maybeAddLoadingPackage(owningPackageName, loadingPackageName, 147535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle newData.mLoadingPackages); 1480318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 1490318162abcbd07a0472989df43e00e353fac731bCalin Juravle mPackageUseInfoMap.put(owningPackageName, packageUseInfo); 1500318162abcbd07a0472989df43e00e353fac731bCalin Juravle return true; 1510318162abcbd07a0472989df43e00e353fac731bCalin Juravle } else { 1520318162abcbd07a0472989df43e00e353fac731bCalin Juravle // We already have data on this package. Amend it. 1530318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (primaryOrSplit) { 1540318162abcbd07a0472989df43e00e353fac731bCalin Juravle // We have a possible update on the primary apk usage. Merge 1550318162abcbd07a0472989df43e00e353fac731bCalin Juravle // isUsedByOtherApps information and return if there was an update. 15652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle return packageUseInfo.mergeCodePathUsedByOtherApps( 15752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle dexPath, isUsedByOtherApps, owningPackageName, loadingPackageName); 1580318162abcbd07a0472989df43e00e353fac731bCalin Juravle } else { 1590318162abcbd07a0472989df43e00e353fac731bCalin Juravle DexUseInfo newData = new DexUseInfo( 160f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle isUsedByOtherApps, ownerUserId, classLoaderContext, loaderIsa); 161535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle boolean updateLoadingPackages = maybeAddLoadingPackage(owningPackageName, 162535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle loadingPackageName, newData.mLoadingPackages); 163535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle 1640318162abcbd07a0472989df43e00e353fac731bCalin Juravle DexUseInfo existingData = packageUseInfo.mDexUseInfoMap.get(dexPath); 1650318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (existingData == null) { 1660318162abcbd07a0472989df43e00e353fac731bCalin Juravle // It's the first time we see this dex file. 1670318162abcbd07a0472989df43e00e353fac731bCalin Juravle packageUseInfo.mDexUseInfoMap.put(dexPath, newData); 1680318162abcbd07a0472989df43e00e353fac731bCalin Juravle return true; 1690318162abcbd07a0472989df43e00e353fac731bCalin Juravle } else { 1700318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (ownerUserId != existingData.mOwnerUserId) { 1710318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Oups, this should never happen, the DexManager who calls this should 1720318162abcbd07a0472989df43e00e353fac731bCalin Juravle // do the proper checks and not call record if the user does not own the 1730318162abcbd07a0472989df43e00e353fac731bCalin Juravle // dex path. 1740318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Secondary dex files are stored in the app user directory. A change in 1750318162abcbd07a0472989df43e00e353fac731bCalin Juravle // owningUser for the same path means that something went wrong at some 1760318162abcbd07a0472989df43e00e353fac731bCalin Juravle // higher level, and the loaderUser was allowed to cross 1770318162abcbd07a0472989df43e00e353fac731bCalin Juravle // user-boundaries and access data from what we know to be the owner 1780318162abcbd07a0472989df43e00e353fac731bCalin Juravle // user. 1790318162abcbd07a0472989df43e00e353fac731bCalin Juravle throw new IllegalArgumentException("Trying to change ownerUserId for " 1800318162abcbd07a0472989df43e00e353fac731bCalin Juravle + " dex path " + dexPath + " from " + existingData.mOwnerUserId 1810318162abcbd07a0472989df43e00e353fac731bCalin Juravle + " to " + ownerUserId); 1820318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 1830318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Merge the information into the existing data. 1840318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Returns true if there was an update. 185535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle return existingData.merge(newData) || updateLoadingPackages; 1860318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 1870318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 1880318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 1890318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 1900318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 1910318162abcbd07a0472989df43e00e353fac731bCalin Juravle 1920318162abcbd07a0472989df43e00e353fac731bCalin Juravle /** 1930318162abcbd07a0472989df43e00e353fac731bCalin Juravle * Convenience method for sync reads which does not force the user to pass a useless 1940318162abcbd07a0472989df43e00e353fac731bCalin Juravle * (Void) null. 1950318162abcbd07a0472989df43e00e353fac731bCalin Juravle */ 1960318162abcbd07a0472989df43e00e353fac731bCalin Juravle public void read() { 1970318162abcbd07a0472989df43e00e353fac731bCalin Juravle read((Void) null); 1980318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 1990318162abcbd07a0472989df43e00e353fac731bCalin Juravle 2000318162abcbd07a0472989df43e00e353fac731bCalin Juravle /** 2010318162abcbd07a0472989df43e00e353fac731bCalin Juravle * Convenience method for async writes which does not force the user to pass a useless 2020318162abcbd07a0472989df43e00e353fac731bCalin Juravle * (Void) null. 2030318162abcbd07a0472989df43e00e353fac731bCalin Juravle */ 20414876bd21a4a4e7d78d36f910493269f14b2e905Calin Juravle /*package*/ void maybeWriteAsync() { 20514876bd21a4a4e7d78d36f910493269f14b2e905Calin Juravle maybeWriteAsync(null); 20614876bd21a4a4e7d78d36f910493269f14b2e905Calin Juravle } 20714876bd21a4a4e7d78d36f910493269f14b2e905Calin Juravle 20814876bd21a4a4e7d78d36f910493269f14b2e905Calin Juravle /*package*/ void writeNow() { 20914876bd21a4a4e7d78d36f910493269f14b2e905Calin Juravle writeInternal(null); 2100318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 2110318162abcbd07a0472989df43e00e353fac731bCalin Juravle 2120318162abcbd07a0472989df43e00e353fac731bCalin Juravle @Override 2130318162abcbd07a0472989df43e00e353fac731bCalin Juravle protected void writeInternal(Void data) { 2140318162abcbd07a0472989df43e00e353fac731bCalin Juravle AtomicFile file = getFile(); 2150318162abcbd07a0472989df43e00e353fac731bCalin Juravle FileOutputStream f = null; 2160318162abcbd07a0472989df43e00e353fac731bCalin Juravle 2170318162abcbd07a0472989df43e00e353fac731bCalin Juravle try { 2180318162abcbd07a0472989df43e00e353fac731bCalin Juravle f = file.startWrite(); 2190318162abcbd07a0472989df43e00e353fac731bCalin Juravle OutputStreamWriter osw = new OutputStreamWriter(f); 2200318162abcbd07a0472989df43e00e353fac731bCalin Juravle write(osw); 2210318162abcbd07a0472989df43e00e353fac731bCalin Juravle osw.flush(); 2220318162abcbd07a0472989df43e00e353fac731bCalin Juravle file.finishWrite(f); 2230318162abcbd07a0472989df43e00e353fac731bCalin Juravle } catch (IOException e) { 2240318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (f != null) { 2250318162abcbd07a0472989df43e00e353fac731bCalin Juravle file.failWrite(f); 2260318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 2270318162abcbd07a0472989df43e00e353fac731bCalin Juravle Slog.e(TAG, "Failed to write usage for dex files", e); 2280318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 2290318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 2300318162abcbd07a0472989df43e00e353fac731bCalin Juravle 2310318162abcbd07a0472989df43e00e353fac731bCalin Juravle /** 2320318162abcbd07a0472989df43e00e353fac731bCalin Juravle * File format: 2330318162abcbd07a0472989df43e00e353fac731bCalin Juravle * 2340318162abcbd07a0472989df43e00e353fac731bCalin Juravle * file_magic_version 2350318162abcbd07a0472989df43e00e353fac731bCalin Juravle * package_name_1 23652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle * +code_path1 237535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle * @ loading_package_1_1, loading_package_1_2... 23852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle * +code_path2 23952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle * @ loading_package_2_1, loading_package_2_2... 2400318162abcbd07a0472989df43e00e353fac731bCalin Juravle * #dex_file_path_1_1 2410318162abcbd07a0472989df43e00e353fac731bCalin Juravle * user_1_1, used_by_other_app_1_1, user_isa_1_1_1, user_isa_1_1_2 24252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle * @ loading_package_1_1_1, loading_package_1_1_2... 24352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle * class_loader_context_1_1 2440318162abcbd07a0472989df43e00e353fac731bCalin Juravle * #dex_file_path_1_2 2450318162abcbd07a0472989df43e00e353fac731bCalin Juravle * user_1_2, used_by_other_app_1_2, user_isa_1_2_1, user_isa_1_2_2 24652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle * @ loading_package_1_2_1, loading_package_1_2_2... 24752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle * class_loader_context_1_2 2480318162abcbd07a0472989df43e00e353fac731bCalin Juravle * ... 2490318162abcbd07a0472989df43e00e353fac731bCalin Juravle */ 2500318162abcbd07a0472989df43e00e353fac731bCalin Juravle /* package */ void write(Writer out) { 2510318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Make a clone to avoid locking while writing to disk. 2520318162abcbd07a0472989df43e00e353fac731bCalin Juravle Map<String, PackageUseInfo> packageUseInfoMapClone = clonePackageUseInfoMap(); 2530318162abcbd07a0472989df43e00e353fac731bCalin Juravle 2540318162abcbd07a0472989df43e00e353fac731bCalin Juravle FastPrintWriter fpw = new FastPrintWriter(out); 2550318162abcbd07a0472989df43e00e353fac731bCalin Juravle 2560318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Write the header. 2570318162abcbd07a0472989df43e00e353fac731bCalin Juravle fpw.print(PACKAGE_DEX_USAGE_VERSION_HEADER); 2580318162abcbd07a0472989df43e00e353fac731bCalin Juravle fpw.println(PACKAGE_DEX_USAGE_VERSION); 2590318162abcbd07a0472989df43e00e353fac731bCalin Juravle 2600318162abcbd07a0472989df43e00e353fac731bCalin Juravle for (Map.Entry<String, PackageUseInfo> pEntry : packageUseInfoMapClone.entrySet()) { 2610318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Write the package line. 2620318162abcbd07a0472989df43e00e353fac731bCalin Juravle String packageName = pEntry.getKey(); 2630318162abcbd07a0472989df43e00e353fac731bCalin Juravle PackageUseInfo packageUseInfo = pEntry.getValue(); 26452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle fpw.println(packageName); 26552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle 26652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // Write the code paths used by other apps. 26752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle for (Map.Entry<String, Set<String>> codeEntry : 26852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle packageUseInfo.mCodePathsUsedByOtherApps.entrySet()) { 26952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle String codePath = codeEntry.getKey(); 27052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle Set<String> loadingPackages = codeEntry.getValue(); 27152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle fpw.println(CODE_PATH_LINE_CHAR + codePath); 27252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle fpw.println(LOADING_PACKAGE_CHAR + String.join(SPLIT_CHAR, loadingPackages)); 27352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } 2740318162abcbd07a0472989df43e00e353fac731bCalin Juravle 2750318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Write dex file lines. 2760318162abcbd07a0472989df43e00e353fac731bCalin Juravle for (Map.Entry<String, DexUseInfo> dEntry : packageUseInfo.mDexUseInfoMap.entrySet()) { 2770318162abcbd07a0472989df43e00e353fac731bCalin Juravle String dexPath = dEntry.getKey(); 2780318162abcbd07a0472989df43e00e353fac731bCalin Juravle DexUseInfo dexUseInfo = dEntry.getValue(); 2790318162abcbd07a0472989df43e00e353fac731bCalin Juravle fpw.println(DEX_LINE_CHAR + dexPath); 2800318162abcbd07a0472989df43e00e353fac731bCalin Juravle fpw.print(String.join(SPLIT_CHAR, Integer.toString(dexUseInfo.mOwnerUserId), 28152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle writeBoolean(dexUseInfo.mIsUsedByOtherApps))); 2820318162abcbd07a0472989df43e00e353fac731bCalin Juravle for (String isa : dexUseInfo.mLoaderIsas) { 2830318162abcbd07a0472989df43e00e353fac731bCalin Juravle fpw.print(SPLIT_CHAR + isa); 2840318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 2850318162abcbd07a0472989df43e00e353fac731bCalin Juravle fpw.println(); 28652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle fpw.println(LOADING_PACKAGE_CHAR 28752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle + String.join(SPLIT_CHAR, dexUseInfo.mLoadingPackages)); 28852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle fpw.println(dexUseInfo.getClassLoaderContext()); 2890318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 2900318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 2910318162abcbd07a0472989df43e00e353fac731bCalin Juravle fpw.flush(); 2920318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 2930318162abcbd07a0472989df43e00e353fac731bCalin Juravle 2940318162abcbd07a0472989df43e00e353fac731bCalin Juravle @Override 2950318162abcbd07a0472989df43e00e353fac731bCalin Juravle protected void readInternal(Void data) { 2960318162abcbd07a0472989df43e00e353fac731bCalin Juravle AtomicFile file = getFile(); 2970318162abcbd07a0472989df43e00e353fac731bCalin Juravle BufferedReader in = null; 2980318162abcbd07a0472989df43e00e353fac731bCalin Juravle try { 2990318162abcbd07a0472989df43e00e353fac731bCalin Juravle in = new BufferedReader(new InputStreamReader(file.openRead())); 3000318162abcbd07a0472989df43e00e353fac731bCalin Juravle read(in); 3010318162abcbd07a0472989df43e00e353fac731bCalin Juravle } catch (FileNotFoundException expected) { 3020318162abcbd07a0472989df43e00e353fac731bCalin Juravle // The file may not be there. E.g. When we first take the OTA with this feature. 3030318162abcbd07a0472989df43e00e353fac731bCalin Juravle } catch (IOException e) { 3040318162abcbd07a0472989df43e00e353fac731bCalin Juravle Slog.w(TAG, "Failed to parse package dex usage.", e); 3050318162abcbd07a0472989df43e00e353fac731bCalin Juravle } finally { 3060318162abcbd07a0472989df43e00e353fac731bCalin Juravle IoUtils.closeQuietly(in); 3070318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 3080318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 3090318162abcbd07a0472989df43e00e353fac731bCalin Juravle 3100318162abcbd07a0472989df43e00e353fac731bCalin Juravle /* package */ void read(Reader reader) throws IOException { 3110318162abcbd07a0472989df43e00e353fac731bCalin Juravle Map<String, PackageUseInfo> data = new HashMap<>(); 3120318162abcbd07a0472989df43e00e353fac731bCalin Juravle BufferedReader in = new BufferedReader(reader); 3130318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Read header, do version check. 3140318162abcbd07a0472989df43e00e353fac731bCalin Juravle String versionLine = in.readLine(); 315535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle int version; 3160318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (versionLine == null) { 3170318162abcbd07a0472989df43e00e353fac731bCalin Juravle throw new IllegalStateException("No version line found."); 3180318162abcbd07a0472989df43e00e353fac731bCalin Juravle } else { 3190318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (!versionLine.startsWith(PACKAGE_DEX_USAGE_VERSION_HEADER)) { 3200318162abcbd07a0472989df43e00e353fac731bCalin Juravle // TODO(calin): the caller is responsible to clear the file. 3210318162abcbd07a0472989df43e00e353fac731bCalin Juravle throw new IllegalStateException("Invalid version line: " + versionLine); 3220318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 323535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle version = Integer.parseInt( 3240318162abcbd07a0472989df43e00e353fac731bCalin Juravle versionLine.substring(PACKAGE_DEX_USAGE_VERSION_HEADER.length())); 325535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle if (!isSupportedVersion(version)) { 3260318162abcbd07a0472989df43e00e353fac731bCalin Juravle throw new IllegalStateException("Unexpected version: " + version); 3270318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 3280318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 3290318162abcbd07a0472989df43e00e353fac731bCalin Juravle 33052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle String line; 331535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle String currentPackage = null; 332535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle PackageUseInfo currentPackageData = null; 3330318162abcbd07a0472989df43e00e353fac731bCalin Juravle 3340318162abcbd07a0472989df43e00e353fac731bCalin Juravle Set<String> supportedIsas = new HashSet<>(); 3350318162abcbd07a0472989df43e00e353fac731bCalin Juravle for (String abi : Build.SUPPORTED_ABIS) { 3360318162abcbd07a0472989df43e00e353fac731bCalin Juravle supportedIsas.add(VMRuntime.getInstructionSet(abi)); 3370318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 33852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle while ((line = in.readLine()) != null) { 33952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle if (line.startsWith(DEX_LINE_CHAR)) { 3400318162abcbd07a0472989df43e00e353fac731bCalin Juravle // This is the start of the the dex lines. 341f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // We expect 4 lines for each dex entry: 3420318162abcbd07a0472989df43e00e353fac731bCalin Juravle // #dexPaths 343f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // @loading_package_1,loading_package_2,... 344f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // class_loader_context 3450318162abcbd07a0472989df43e00e353fac731bCalin Juravle // onwerUserId,isUsedByOtherApps,isa1,isa2 346535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle if (currentPackage == null) { 3470318162abcbd07a0472989df43e00e353fac731bCalin Juravle throw new IllegalStateException( 3480318162abcbd07a0472989df43e00e353fac731bCalin Juravle "Malformed PackageDexUsage file. Expected package line before dex line."); 3490318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 3500318162abcbd07a0472989df43e00e353fac731bCalin Juravle 35152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // Line 1 is the dex path. 35252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle String dexPath = line.substring(DEX_LINE_CHAR.length()); 353535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle 35452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // Line 2 is the dex data: (userId, isUsedByOtherApps, isa). 35552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle line = in.readLine(); 35652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle if (line == null) { 357f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle throw new IllegalStateException("Could not find dexUseInfo line"); 3580318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 35952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle String[] elems = line.split(SPLIT_CHAR); 3600318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (elems.length < 3) { 36152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle throw new IllegalStateException("Invalid PackageDexUsage line: " + line); 3620318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 36352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle 36452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // In version 2 we added the loading packages and class loader context. 36552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle Set<String> loadingPackages = maybeReadLoadingPackages(in, version); 36652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle String classLoaderContext = maybeReadClassLoaderContext(in, version); 36752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle 3680318162abcbd07a0472989df43e00e353fac731bCalin Juravle int ownerUserId = Integer.parseInt(elems[0]); 3690318162abcbd07a0472989df43e00e353fac731bCalin Juravle boolean isUsedByOtherApps = readBoolean(elems[1]); 370f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle DexUseInfo dexUseInfo = new DexUseInfo(isUsedByOtherApps, ownerUserId, 371f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle classLoaderContext, /*isa*/ null); 372535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle dexUseInfo.mLoadingPackages.addAll(loadingPackages); 3730318162abcbd07a0472989df43e00e353fac731bCalin Juravle for (int i = 2; i < elems.length; i++) { 3740318162abcbd07a0472989df43e00e353fac731bCalin Juravle String isa = elems[i]; 3750318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (supportedIsas.contains(isa)) { 3760318162abcbd07a0472989df43e00e353fac731bCalin Juravle dexUseInfo.mLoaderIsas.add(elems[i]); 3770318162abcbd07a0472989df43e00e353fac731bCalin Juravle } else { 3780318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Should never happen unless someone crafts the file manually. 3790318162abcbd07a0472989df43e00e353fac731bCalin Juravle // In theory it could if we drop a supported ISA after an OTA but we don't 3800318162abcbd07a0472989df43e00e353fac731bCalin Juravle // do that. 3810318162abcbd07a0472989df43e00e353fac731bCalin Juravle Slog.wtf(TAG, "Unsupported ISA when parsing PackageDexUsage: " + isa); 3820318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 3830318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 3840318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (supportedIsas.isEmpty()) { 3850318162abcbd07a0472989df43e00e353fac731bCalin Juravle Slog.wtf(TAG, "Ignore dexPath when parsing PackageDexUsage because of " + 3860318162abcbd07a0472989df43e00e353fac731bCalin Juravle "unsupported isas. dexPath=" + dexPath); 3870318162abcbd07a0472989df43e00e353fac731bCalin Juravle continue; 3880318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 389535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle currentPackageData.mDexUseInfoMap.put(dexPath, dexUseInfo); 39052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } else if (line.startsWith(CODE_PATH_LINE_CHAR)) { 39152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // This is a code path used by other apps line. 39252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle if (version < PACKAGE_DEX_USAGE_SUPPORTED_VERSION_2) { 39352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle throw new IllegalArgumentException("Unexpected code path line when parsing " + 39452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle "PackageDexUseData: " + line); 39552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } 39652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle 39752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // Expects 2 lines: 39852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // +code_paths 39952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // @loading_packages 40052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle String codePath = line.substring(CODE_PATH_LINE_CHAR.length()); 40152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle Set<String> loadingPackages = maybeReadLoadingPackages(in, version); 40252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle currentPackageData.mCodePathsUsedByOtherApps.put(codePath, loadingPackages); 4030318162abcbd07a0472989df43e00e353fac731bCalin Juravle } else { 4040318162abcbd07a0472989df43e00e353fac731bCalin Juravle // This is a package line. 40552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle if (version >= PACKAGE_DEX_USAGE_SUPPORTED_VERSION_2) { 40652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle currentPackage = line; 40752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle currentPackageData = new PackageUseInfo(); 40852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } else { 40952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // Old version (<2) 41052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // We expect it to be: `packageName,isUsedByOtherApps`. 41152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle String[] elems = line.split(SPLIT_CHAR); 41252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle if (elems.length != 2) { 41352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle throw new IllegalStateException("Invalid PackageDexUsage line: " + line); 41452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } 41552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle currentPackage = elems[0]; 41652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle currentPackageData = new PackageUseInfo(); 41752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle currentPackageData.mUsedByOtherAppsBeforeUpgrade = readBoolean(elems[1]); 4180318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 419535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle data.put(currentPackage, currentPackageData); 4200318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 4210318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 4220318162abcbd07a0472989df43e00e353fac731bCalin Juravle 4230318162abcbd07a0472989df43e00e353fac731bCalin Juravle synchronized (mPackageUseInfoMap) { 4240318162abcbd07a0472989df43e00e353fac731bCalin Juravle mPackageUseInfoMap.clear(); 4250318162abcbd07a0472989df43e00e353fac731bCalin Juravle mPackageUseInfoMap.putAll(data); 4260318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 4270318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 4280318162abcbd07a0472989df43e00e353fac731bCalin Juravle 4290318162abcbd07a0472989df43e00e353fac731bCalin Juravle /** 430f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle * Reads the class loader context encoding from the buffer {@code in} if 431535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle * {@code version} is at least {PACKAGE_DEX_USAGE_VERSION}. 432535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle */ 433f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle private String maybeReadClassLoaderContext(BufferedReader in, int version) throws IOException { 434f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle String context = null; 43552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle if (version >= PACKAGE_DEX_USAGE_SUPPORTED_VERSION_2) { 436f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle context = in.readLine(); 437f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle if (context == null) { 438f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle throw new IllegalStateException("Could not find the classLoaderContext line."); 439f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle } 440f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle } 441f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // The context might be empty if we didn't have the chance to update it after a version 442f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // upgrade. In this case return the special marker so that we recognize this is an unknown 443f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // context. 444f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle return context == null ? UNKNOWN_CLASS_LOADER_CONTEXT : context; 445f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle } 446f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle 447f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle /** 448f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle * Reads the list of loading packages from the buffer {@code in} if 449f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle * {@code version} is at least {PACKAGE_DEX_USAGE_SUPPORTED_VERSION_2}. 450f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle */ 45152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle private Set<String> maybeReadLoadingPackages(BufferedReader in, int version) 452535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle throws IOException { 453f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle if (version >= PACKAGE_DEX_USAGE_SUPPORTED_VERSION_2) { 454535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle String line = in.readLine(); 455535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle if (line == null) { 456535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle throw new IllegalStateException("Could not find the loadingPackages line."); 457535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle } 458535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle // We expect that most of the times the list of loading packages will be empty. 459535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle if (line.length() == LOADING_PACKAGE_CHAR.length()) { 46052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle return Collections.emptySet(); 461535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle } else { 46252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle Set<String> result = new HashSet<>(); 46352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle Collections.addAll(result, 464535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle line.substring(LOADING_PACKAGE_CHAR.length()).split(SPLIT_CHAR)); 46552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle return result; 466535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle } 467535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle } else { 46852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle return Collections.emptySet(); 469535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle } 470535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle } 471535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle 472535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle /** 473535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle * Utility method which adds {@param loadingPackage} to {@param loadingPackages} only if it's 474535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle * not equal to {@param owningPackage} 475535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle */ 476535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle private boolean maybeAddLoadingPackage(String owningPackage, String loadingPackage, 477535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle Set<String> loadingPackages) { 478535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle return !owningPackage.equals(loadingPackage) && loadingPackages.add(loadingPackage); 479535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle } 480535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle 481535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle private boolean isSupportedVersion(int version) { 48252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle return version == PACKAGE_DEX_USAGE_SUPPORTED_VERSION_1 48352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle || version == PACKAGE_DEX_USAGE_SUPPORTED_VERSION_2; 484535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle } 485535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle 486535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle /** 4870318162abcbd07a0472989df43e00e353fac731bCalin Juravle * Syncs the existing data with the set of available packages by removing obsolete entries. 4880318162abcbd07a0472989df43e00e353fac731bCalin Juravle */ 48952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle /*package*/ void syncData(Map<String, Set<Integer>> packageToUsersMap, 49052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle Map<String, Set<String>> packageToCodePaths) { 4910318162abcbd07a0472989df43e00e353fac731bCalin Juravle synchronized (mPackageUseInfoMap) { 4920318162abcbd07a0472989df43e00e353fac731bCalin Juravle Iterator<Map.Entry<String, PackageUseInfo>> pIt = 4930318162abcbd07a0472989df43e00e353fac731bCalin Juravle mPackageUseInfoMap.entrySet().iterator(); 4940318162abcbd07a0472989df43e00e353fac731bCalin Juravle while (pIt.hasNext()) { 4950318162abcbd07a0472989df43e00e353fac731bCalin Juravle Map.Entry<String, PackageUseInfo> pEntry = pIt.next(); 4960318162abcbd07a0472989df43e00e353fac731bCalin Juravle String packageName = pEntry.getKey(); 4970318162abcbd07a0472989df43e00e353fac731bCalin Juravle PackageUseInfo packageUseInfo = pEntry.getValue(); 4980318162abcbd07a0472989df43e00e353fac731bCalin Juravle Set<Integer> users = packageToUsersMap.get(packageName); 4990318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (users == null) { 5000318162abcbd07a0472989df43e00e353fac731bCalin Juravle // The package doesn't exist anymore, remove the record. 5010318162abcbd07a0472989df43e00e353fac731bCalin Juravle pIt.remove(); 5020318162abcbd07a0472989df43e00e353fac731bCalin Juravle } else { 5030318162abcbd07a0472989df43e00e353fac731bCalin Juravle // The package exists but we can prune the entries associated with non existing 5040318162abcbd07a0472989df43e00e353fac731bCalin Juravle // users. 5050318162abcbd07a0472989df43e00e353fac731bCalin Juravle Iterator<Map.Entry<String, DexUseInfo>> dIt = 5060318162abcbd07a0472989df43e00e353fac731bCalin Juravle packageUseInfo.mDexUseInfoMap.entrySet().iterator(); 5070318162abcbd07a0472989df43e00e353fac731bCalin Juravle while (dIt.hasNext()) { 5080318162abcbd07a0472989df43e00e353fac731bCalin Juravle DexUseInfo dexUseInfo = dIt.next().getValue(); 5090318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (!users.contains(dexUseInfo.mOwnerUserId)) { 5100318162abcbd07a0472989df43e00e353fac731bCalin Juravle // User was probably removed. Delete its dex usage info. 5110318162abcbd07a0472989df43e00e353fac731bCalin Juravle dIt.remove(); 5120318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 5130318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 51452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle 51552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // Sync the code paths. 51652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle Set<String> codePaths = packageToCodePaths.get(packageName); 51752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle Iterator<Map.Entry<String, Set<String>>> codeIt = 51852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle packageUseInfo.mCodePathsUsedByOtherApps.entrySet().iterator(); 51952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle while (codeIt.hasNext()) { 52052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle if (!codePaths.contains(codeIt.next().getKey())) { 52152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle codeIt.remove(); 52252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } 52352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } 52452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle 52552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // In case the package was marked as used by other apps in a previous version 52652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // propagate the flag to all the code paths. 52752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // See mUsedByOtherAppsBeforeUpgrade docs on why it is important to do it. 52852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle if (packageUseInfo.mUsedByOtherAppsBeforeUpgrade) { 52952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle for (String codePath : codePaths) { 53052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle packageUseInfo.mergeCodePathUsedByOtherApps(codePath, true, null, null); 53152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } 53252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } else if (!packageUseInfo.isAnyCodePathUsedByOtherApps() 53352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle && packageUseInfo.mDexUseInfoMap.isEmpty()) { 5340318162abcbd07a0472989df43e00e353fac731bCalin Juravle // The package is not used by other apps and we removed all its dex files 5350318162abcbd07a0472989df43e00e353fac731bCalin Juravle // records. Remove the entire package record as well. 5360318162abcbd07a0472989df43e00e353fac731bCalin Juravle pIt.remove(); 5370318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 5380318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 5390318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 5400318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 5410318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 5420318162abcbd07a0472989df43e00e353fac731bCalin Juravle 5431aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle /** 54499dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle * Clears the {@code usesByOtherApps} marker for the package {@code packageName}. 54599dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle * @return true if the package usage info was updated. 54699dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle */ 54752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle /*package*/ boolean clearUsedByOtherApps(String packageName) { 54899dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle synchronized (mPackageUseInfoMap) { 54999dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle PackageUseInfo packageUseInfo = mPackageUseInfoMap.get(packageName); 55052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle if (packageUseInfo == null) { 55199dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle return false; 55299dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle } 55352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle return packageUseInfo.clearCodePathUsedByOtherApps(); 55499dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle } 55599dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle } 55699dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle 55799dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle /** 55899dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle * Remove the usage data associated with package {@code packageName}. 55999dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle * @return true if the package usage was found and removed successfully. 56099dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle */ 56199dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle public boolean removePackage(String packageName) { 56299dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle synchronized (mPackageUseInfoMap) { 56399dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle return mPackageUseInfoMap.remove(packageName) != null; 56499dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle } 56599dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle } 56699dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle 56799dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle /** 5681aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle * Remove all the records about package {@code packageName} belonging to user {@code userId}. 56999dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle * If the package is left with no records of secondary dex usage and is not used by other 57099dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle * apps it will be removed as well. 571b1097411028103b6c88ce325af23d2ff1ec746c8Calin Juravle * @return true if the record was found and actually deleted, 572b1097411028103b6c88ce325af23d2ff1ec746c8Calin Juravle * false if the record doesn't exist 5731aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle */ 57452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle /*package*/ boolean removeUserPackage(String packageName, int userId) { 5751aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle synchronized (mPackageUseInfoMap) { 5761aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle PackageUseInfo packageUseInfo = mPackageUseInfoMap.get(packageName); 5771aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle if (packageUseInfo == null) { 5781aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle return false; 5791aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle } 5801aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle boolean updated = false; 5811aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle Iterator<Map.Entry<String, DexUseInfo>> dIt = 5821aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle packageUseInfo.mDexUseInfoMap.entrySet().iterator(); 5831aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle while (dIt.hasNext()) { 5841aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle DexUseInfo dexUseInfo = dIt.next().getValue(); 5851aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle if (dexUseInfo.mOwnerUserId == userId) { 5861aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle dIt.remove(); 5871aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle updated = true; 5881aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle } 5891aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle } 59099dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle // If no secondary dex info is left and the package is not used by other apps 59199dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle // remove the data since it is now useless. 59252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle if (packageUseInfo.mDexUseInfoMap.isEmpty() 59352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle && !packageUseInfo.isAnyCodePathUsedByOtherApps()) { 59499dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle mPackageUseInfoMap.remove(packageName); 59599dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle updated = true; 59699dd37b3c5262910150ef955d16a33d32da264ddCalin Juravle } 5971aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle return updated; 5981aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle } 5991aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle } 6001aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle 6011aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle /** 6021aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle * Remove the secondary dex file record belonging to the package {@code packageName} 6031aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle * and user {@code userId}. 604b1097411028103b6c88ce325af23d2ff1ec746c8Calin Juravle * @return true if the record was found and actually deleted, 605b1097411028103b6c88ce325af23d2ff1ec746c8Calin Juravle * false if the record doesn't exist 6061aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle */ 60752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle /*package*/ boolean removeDexFile(String packageName, String dexFile, int userId) { 6081aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle synchronized (mPackageUseInfoMap) { 6091aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle PackageUseInfo packageUseInfo = mPackageUseInfoMap.get(packageName); 6101aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle if (packageUseInfo == null) { 6111aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle return false; 6121aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle } 6131aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle return removeDexFile(packageUseInfo, dexFile, userId); 6141aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle } 6151aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle } 6161aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle 6171aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle private boolean removeDexFile(PackageUseInfo packageUseInfo, String dexFile, int userId) { 6181aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle DexUseInfo dexUseInfo = packageUseInfo.mDexUseInfoMap.get(dexFile); 6191aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle if (dexUseInfo == null) { 6201aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle return false; 6211aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle } 6221aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle if (dexUseInfo.mOwnerUserId == userId) { 6231aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle packageUseInfo.mDexUseInfoMap.remove(dexFile); 6241aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle return true; 6251aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle } 6261aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle return false; 6271aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle } 6281aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle 62952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle /*package*/ PackageUseInfo getPackageUseInfo(String packageName) { 6300318162abcbd07a0472989df43e00e353fac731bCalin Juravle synchronized (mPackageUseInfoMap) { 6311aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle PackageUseInfo useInfo = mPackageUseInfoMap.get(packageName); 6321aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle // The useInfo contains a map for secondary dex files which could be modified 6331aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle // concurrently after this method returns and thus outside the locking we do here. 6341aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle // (i.e. the map is updated when new class loaders are created, which can happen anytime 6351aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle // after this method returns) 6361aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle // Make a defensive copy to be sure we don't get concurrent modifications. 6371aa5f88e35734383e66ecd65e82e83d788e18ccbCalin Juravle return useInfo == null ? null : new PackageUseInfo(useInfo); 6380318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 6390318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 6400318162abcbd07a0472989df43e00e353fac731bCalin Juravle 64151f521c3bf46e6040f36757bc53ea57ddc7be85eCalin Juravle /** 64251f521c3bf46e6040f36757bc53ea57ddc7be85eCalin Juravle * Return all packages that contain records of secondary dex files. 64351f521c3bf46e6040f36757bc53ea57ddc7be85eCalin Juravle */ 64452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle /*package*/ Set<String> getAllPackagesWithSecondaryDexFiles() { 64551f521c3bf46e6040f36757bc53ea57ddc7be85eCalin Juravle Set<String> packages = new HashSet<>(); 64651f521c3bf46e6040f36757bc53ea57ddc7be85eCalin Juravle synchronized (mPackageUseInfoMap) { 64751f521c3bf46e6040f36757bc53ea57ddc7be85eCalin Juravle for (Map.Entry<String, PackageUseInfo> entry : mPackageUseInfoMap.entrySet()) { 64851f521c3bf46e6040f36757bc53ea57ddc7be85eCalin Juravle if (!entry.getValue().mDexUseInfoMap.isEmpty()) { 64951f521c3bf46e6040f36757bc53ea57ddc7be85eCalin Juravle packages.add(entry.getKey()); 65051f521c3bf46e6040f36757bc53ea57ddc7be85eCalin Juravle } 65151f521c3bf46e6040f36757bc53ea57ddc7be85eCalin Juravle } 65251f521c3bf46e6040f36757bc53ea57ddc7be85eCalin Juravle } 65351f521c3bf46e6040f36757bc53ea57ddc7be85eCalin Juravle return packages; 65451f521c3bf46e6040f36757bc53ea57ddc7be85eCalin Juravle } 65551f521c3bf46e6040f36757bc53ea57ddc7be85eCalin Juravle 6560318162abcbd07a0472989df43e00e353fac731bCalin Juravle public void clear() { 6570318162abcbd07a0472989df43e00e353fac731bCalin Juravle synchronized (mPackageUseInfoMap) { 6580318162abcbd07a0472989df43e00e353fac731bCalin Juravle mPackageUseInfoMap.clear(); 6590318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 6600318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 6610318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Creates a deep copy of the class' mPackageUseInfoMap. 6620318162abcbd07a0472989df43e00e353fac731bCalin Juravle private Map<String, PackageUseInfo> clonePackageUseInfoMap() { 6630318162abcbd07a0472989df43e00e353fac731bCalin Juravle Map<String, PackageUseInfo> clone = new HashMap<>(); 6640318162abcbd07a0472989df43e00e353fac731bCalin Juravle synchronized (mPackageUseInfoMap) { 6650318162abcbd07a0472989df43e00e353fac731bCalin Juravle for (Map.Entry<String, PackageUseInfo> e : mPackageUseInfoMap.entrySet()) { 6660318162abcbd07a0472989df43e00e353fac731bCalin Juravle clone.put(e.getKey(), new PackageUseInfo(e.getValue())); 6670318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 6680318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 6690318162abcbd07a0472989df43e00e353fac731bCalin Juravle return clone; 6700318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 6710318162abcbd07a0472989df43e00e353fac731bCalin Juravle 6720318162abcbd07a0472989df43e00e353fac731bCalin Juravle private String writeBoolean(boolean bool) { 6730318162abcbd07a0472989df43e00e353fac731bCalin Juravle return bool ? "1" : "0"; 6740318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 6750318162abcbd07a0472989df43e00e353fac731bCalin Juravle 6760318162abcbd07a0472989df43e00e353fac731bCalin Juravle private boolean readBoolean(String bool) { 6770318162abcbd07a0472989df43e00e353fac731bCalin Juravle if ("0".equals(bool)) return false; 6780318162abcbd07a0472989df43e00e353fac731bCalin Juravle if ("1".equals(bool)) return true; 6790318162abcbd07a0472989df43e00e353fac731bCalin Juravle throw new IllegalArgumentException("Unknown bool encoding: " + bool); 6800318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 6810318162abcbd07a0472989df43e00e353fac731bCalin Juravle 6820318162abcbd07a0472989df43e00e353fac731bCalin Juravle public String dump() { 6830318162abcbd07a0472989df43e00e353fac731bCalin Juravle StringWriter sw = new StringWriter(); 6840318162abcbd07a0472989df43e00e353fac731bCalin Juravle write(sw); 6850318162abcbd07a0472989df43e00e353fac731bCalin Juravle return sw.toString(); 6860318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 6870318162abcbd07a0472989df43e00e353fac731bCalin Juravle 6880318162abcbd07a0472989df43e00e353fac731bCalin Juravle /** 6890318162abcbd07a0472989df43e00e353fac731bCalin Juravle * Stores data on how a package and its dex files are used. 6900318162abcbd07a0472989df43e00e353fac731bCalin Juravle */ 6910318162abcbd07a0472989df43e00e353fac731bCalin Juravle public static class PackageUseInfo { 69252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // The app's code paths that are used by other apps. 69352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // The key is the code path and the value is the set of loading packages. 69452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle private final Map<String, Set<String>> mCodePathsUsedByOtherApps; 6950318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Map dex paths to their data (isUsedByOtherApps, owner id, loader isa). 6960318162abcbd07a0472989df43e00e353fac731bCalin Juravle private final Map<String, DexUseInfo> mDexUseInfoMap; 69752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle 69852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // Keeps track of whether or not this package was used by other apps before 69952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // we upgraded to VERSION 4 which records the info for each code path separately. 70052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // This is unwanted complexity but without it we risk to profile guide compile 70152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // something that supposed to be shared. For example: 70252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // 1) we determine that chrome is used by another app 70352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // 2) we take an OTA which upgrades the way we keep track of usage data 70452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // 3) chrome doesn't get used until the background job executes 70552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // 4) as part of the backgound job we now think that chrome is not used by others 70652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // and we speed-profile. 70752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // 5) as a result the next time someone uses chrome it will extract from apk since 70852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // the compiled code will be private. 70952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle private boolean mUsedByOtherAppsBeforeUpgrade; 7100318162abcbd07a0472989df43e00e353fac731bCalin Juravle 7110318162abcbd07a0472989df43e00e353fac731bCalin Juravle public PackageUseInfo() { 71252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle mCodePathsUsedByOtherApps = new HashMap<>(); 7130318162abcbd07a0472989df43e00e353fac731bCalin Juravle mDexUseInfoMap = new HashMap<>(); 7140318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 7150318162abcbd07a0472989df43e00e353fac731bCalin Juravle 7160318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Creates a deep copy of the `other`. 7170318162abcbd07a0472989df43e00e353fac731bCalin Juravle public PackageUseInfo(PackageUseInfo other) { 71852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle mCodePathsUsedByOtherApps = new HashMap<>(); 71952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle for (Map.Entry<String, Set<String>> e : other.mCodePathsUsedByOtherApps.entrySet()) { 72052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle mCodePathsUsedByOtherApps.put(e.getKey(), new HashSet<>(e.getValue())); 72152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } 72252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle 7230318162abcbd07a0472989df43e00e353fac731bCalin Juravle mDexUseInfoMap = new HashMap<>(); 7240318162abcbd07a0472989df43e00e353fac731bCalin Juravle for (Map.Entry<String, DexUseInfo> e : other.mDexUseInfoMap.entrySet()) { 7250318162abcbd07a0472989df43e00e353fac731bCalin Juravle mDexUseInfoMap.put(e.getKey(), new DexUseInfo(e.getValue())); 7260318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 7270318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 7280318162abcbd07a0472989df43e00e353fac731bCalin Juravle 72952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle private boolean mergeCodePathUsedByOtherApps(String codePath, boolean isUsedByOtherApps, 73052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle String owningPackageName, String loadingPackage) { 73152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle if (!isUsedByOtherApps) { 73252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // Nothing to update if the the code path is not used by other apps. 73352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle return false; 73452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } 73552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle 73652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle boolean newCodePath = false; 73752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle Set<String> loadingPackages = mCodePathsUsedByOtherApps.get(codePath); 73852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle if (loadingPackages == null) { 73952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle loadingPackages = new HashSet<>(); 74052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle mCodePathsUsedByOtherApps.put(codePath, loadingPackages); 74152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle newCodePath = true; 74252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } 74352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle boolean newLoadingPackage = loadingPackage != null 74452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle && !loadingPackage.equals(owningPackageName) 74552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle && loadingPackages.add(loadingPackage); 74652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle return newCodePath || newLoadingPackage; 7470318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 7480318162abcbd07a0472989df43e00e353fac731bCalin Juravle 74952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle public boolean isUsedByOtherApps(String codePath) { 75052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle return mCodePathsUsedByOtherApps.containsKey(codePath); 7510318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 7520318162abcbd07a0472989df43e00e353fac731bCalin Juravle 7530318162abcbd07a0472989df43e00e353fac731bCalin Juravle public Map<String, DexUseInfo> getDexUseInfoMap() { 7540318162abcbd07a0472989df43e00e353fac731bCalin Juravle return mDexUseInfoMap; 7550318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 756535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle 75752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle public Set<String> getLoadingPackages(String codePath) { 75852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle return mCodePathsUsedByOtherApps.getOrDefault(codePath, null); 75952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } 76052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle 76152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle public boolean isAnyCodePathUsedByOtherApps() { 76252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle return !mCodePathsUsedByOtherApps.isEmpty(); 76352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } 76452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle 76552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle /** 76652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle * Clears the usedByOtherApps markers from all code paths. 76752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle * Returns whether or not there was an update. 76852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle */ 76952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle /*package*/ boolean clearCodePathUsedByOtherApps() { 77052a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // Update mUsedByOtherAppsBeforeUpgrade as well to be consistent with 77152a452cf685c56dc6872dbb19e822736484f672fCalin Juravle // the new data. This is not saved to disk so we don't need to return it. 77252a452cf685c56dc6872dbb19e822736484f672fCalin Juravle mUsedByOtherAppsBeforeUpgrade = true; 77352a452cf685c56dc6872dbb19e822736484f672fCalin Juravle 77452a452cf685c56dc6872dbb19e822736484f672fCalin Juravle if (mCodePathsUsedByOtherApps.isEmpty()) { 77552a452cf685c56dc6872dbb19e822736484f672fCalin Juravle return false; 77652a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } else { 77752a452cf685c56dc6872dbb19e822736484f672fCalin Juravle mCodePathsUsedByOtherApps.clear(); 77852a452cf685c56dc6872dbb19e822736484f672fCalin Juravle return true; 77952a452cf685c56dc6872dbb19e822736484f672fCalin Juravle } 780535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle } 7810318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 7820318162abcbd07a0472989df43e00e353fac731bCalin Juravle 7830318162abcbd07a0472989df43e00e353fac731bCalin Juravle /** 7840318162abcbd07a0472989df43e00e353fac731bCalin Juravle * Stores data about a loaded dex files. 7850318162abcbd07a0472989df43e00e353fac731bCalin Juravle */ 7860318162abcbd07a0472989df43e00e353fac731bCalin Juravle public static class DexUseInfo { 7870318162abcbd07a0472989df43e00e353fac731bCalin Juravle private boolean mIsUsedByOtherApps; 7880318162abcbd07a0472989df43e00e353fac731bCalin Juravle private final int mOwnerUserId; 789f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // The class loader context for the dex file. This encodes the class loader chain 790f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // (class loader type + class path) in a format compatible to dex2oat. 791f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // See {@code DexoptUtils.processContextForDexLoad}. 792f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle private String mClassLoaderContext; 793f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // The instructions sets of the applications loading the dex file. 7940318162abcbd07a0472989df43e00e353fac731bCalin Juravle private final Set<String> mLoaderIsas; 795535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle // Packages who load this dex file. 796535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle private final Set<String> mLoadingPackages; 7970318162abcbd07a0472989df43e00e353fac731bCalin Juravle 798f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle public DexUseInfo(boolean isUsedByOtherApps, int ownerUserId, String classLoaderContext, 799f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle String loaderIsa) { 8000318162abcbd07a0472989df43e00e353fac731bCalin Juravle mIsUsedByOtherApps = isUsedByOtherApps; 8010318162abcbd07a0472989df43e00e353fac731bCalin Juravle mOwnerUserId = ownerUserId; 802f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle mClassLoaderContext = classLoaderContext; 8030318162abcbd07a0472989df43e00e353fac731bCalin Juravle mLoaderIsas = new HashSet<>(); 8040318162abcbd07a0472989df43e00e353fac731bCalin Juravle if (loaderIsa != null) { 8050318162abcbd07a0472989df43e00e353fac731bCalin Juravle mLoaderIsas.add(loaderIsa); 8060318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 807535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle mLoadingPackages = new HashSet<>(); 8080318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 8090318162abcbd07a0472989df43e00e353fac731bCalin Juravle 8100318162abcbd07a0472989df43e00e353fac731bCalin Juravle // Creates a deep copy of the `other`. 8110318162abcbd07a0472989df43e00e353fac731bCalin Juravle public DexUseInfo(DexUseInfo other) { 8120318162abcbd07a0472989df43e00e353fac731bCalin Juravle mIsUsedByOtherApps = other.mIsUsedByOtherApps; 8130318162abcbd07a0472989df43e00e353fac731bCalin Juravle mOwnerUserId = other.mOwnerUserId; 814f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle mClassLoaderContext = other.mClassLoaderContext; 8150318162abcbd07a0472989df43e00e353fac731bCalin Juravle mLoaderIsas = new HashSet<>(other.mLoaderIsas); 816535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle mLoadingPackages = new HashSet<>(other.mLoadingPackages); 8170318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 8180318162abcbd07a0472989df43e00e353fac731bCalin Juravle 8190318162abcbd07a0472989df43e00e353fac731bCalin Juravle private boolean merge(DexUseInfo dexUseInfo) { 8200318162abcbd07a0472989df43e00e353fac731bCalin Juravle boolean oldIsUsedByOtherApps = mIsUsedByOtherApps; 8210318162abcbd07a0472989df43e00e353fac731bCalin Juravle mIsUsedByOtherApps = mIsUsedByOtherApps || dexUseInfo.mIsUsedByOtherApps; 8220318162abcbd07a0472989df43e00e353fac731bCalin Juravle boolean updateIsas = mLoaderIsas.addAll(dexUseInfo.mLoaderIsas); 823535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle boolean updateLoadingPackages = mLoadingPackages.addAll(dexUseInfo.mLoadingPackages); 824f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle 825f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle String oldClassLoaderContext = mClassLoaderContext; 826f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle if (UNKNOWN_CLASS_LOADER_CONTEXT.equals(mClassLoaderContext)) { 827f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // Can happen if we read a previous version. 828f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle mClassLoaderContext = dexUseInfo.mClassLoaderContext; 829f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle } else if (UNSUPPORTED_CLASS_LOADER_CONTEXT.equals(dexUseInfo.mClassLoaderContext)) { 830f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // We detected an unsupported context. 831f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle mClassLoaderContext = UNSUPPORTED_CLASS_LOADER_CONTEXT; 832f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle } else if (!UNSUPPORTED_CLASS_LOADER_CONTEXT.equals(mClassLoaderContext) && 833607223f3b7a1c4dc3ac995f742f8d2da50d85ffcNarayan Kamath !Objects.equals(mClassLoaderContext, dexUseInfo.mClassLoaderContext)) { 834f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // We detected a context change. 835f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle mClassLoaderContext = VARIABLE_CLASS_LOADER_CONTEXT; 836f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle } 837f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle 838f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle return updateIsas || 839f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle (oldIsUsedByOtherApps != mIsUsedByOtherApps) || 840f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle updateLoadingPackages 841607223f3b7a1c4dc3ac995f742f8d2da50d85ffcNarayan Kamath || !Objects.equals(oldClassLoaderContext, mClassLoaderContext); 8420318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 8430318162abcbd07a0472989df43e00e353fac731bCalin Juravle 8440318162abcbd07a0472989df43e00e353fac731bCalin Juravle public boolean isUsedByOtherApps() { 8450318162abcbd07a0472989df43e00e353fac731bCalin Juravle return mIsUsedByOtherApps; 8460318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 8470318162abcbd07a0472989df43e00e353fac731bCalin Juravle 8480318162abcbd07a0472989df43e00e353fac731bCalin Juravle public int getOwnerUserId() { 8490318162abcbd07a0472989df43e00e353fac731bCalin Juravle return mOwnerUserId; 8500318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 8510318162abcbd07a0472989df43e00e353fac731bCalin Juravle 8520318162abcbd07a0472989df43e00e353fac731bCalin Juravle public Set<String> getLoaderIsas() { 8530318162abcbd07a0472989df43e00e353fac731bCalin Juravle return mLoaderIsas; 8540318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 855535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle 856535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle public Set<String> getLoadingPackages() { 857535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle return mLoadingPackages; 858535a4753e313bdc2ae3e8be9f50606b82edcce0cCalin Juravle } 859f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle 860f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle public String getClassLoaderContext() { return mClassLoaderContext; } 861f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle 862f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle public boolean isUnsupportedClassLoaderContext() { 863f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle return UNSUPPORTED_CLASS_LOADER_CONTEXT.equals(mClassLoaderContext); 864f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle } 865f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle 866f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle public boolean isUnknownClassLoaderContext() { 867f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // The class loader context may be unknown if we loaded the data from a previous version 868f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle // which didn't save the context. 869f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle return UNKNOWN_CLASS_LOADER_CONTEXT.equals(mClassLoaderContext); 870f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle } 871f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle 872f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle public boolean isVariableClassLoaderContext() { 873f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle return VARIABLE_CLASS_LOADER_CONTEXT.equals(mClassLoaderContext); 874f1ff36f0f99ebb41d0c7e0f3248506a56998fa3fCalin Juravle } 8750318162abcbd07a0472989df43e00e353fac731bCalin Juravle } 8760318162abcbd07a0472989df43e00e353fac731bCalin Juravle} 877