| /* |
| * Copyright (C) 2015 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; |
| |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageParser; |
| import android.os.PowerManager; |
| import android.os.UserHandle; |
| import android.os.WorkSource; |
| import android.util.ArraySet; |
| import android.util.Log; |
| import android.util.Slog; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import dalvik.system.DexFile; |
| |
| import static com.android.server.pm.InstructionSets.getAppDexInstructionSets; |
| import static com.android.server.pm.InstructionSets.getDexCodeInstructionSets; |
| |
| /** |
| * Helper class for running dexopt command on packages. |
| */ |
| final class PackageDexOptimizer { |
| private static final String TAG = "PackageManager.DexOptimizer"; |
| static final String OAT_DIR_NAME = "oat"; |
| // TODO b/19550105 Remove error codes and use exceptions |
| static final int DEX_OPT_SKIPPED = 0; |
| static final int DEX_OPT_PERFORMED = 1; |
| static final int DEX_OPT_DEFERRED = 2; |
| static final int DEX_OPT_FAILED = -1; |
| |
| private final PackageManagerService mPackageManagerService; |
| private ArraySet<PackageParser.Package> mDeferredDexOpt; |
| |
| private final PowerManager.WakeLock mDexoptWakeLock; |
| private volatile boolean mSystemReady; |
| |
| PackageDexOptimizer(PackageManagerService packageManagerService) { |
| this.mPackageManagerService = packageManagerService; |
| PowerManager powerManager = (PowerManager)packageManagerService.mContext.getSystemService( |
| Context.POWER_SERVICE); |
| mDexoptWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "*dexopt*"); |
| } |
| |
| /** |
| * Performs dexopt on all code paths and libraries of the specified package for specified |
| * instruction sets. |
| * |
| * <p>Calls to {@link com.android.server.pm.Installer#dexopt} are synchronized on |
| * {@link PackageManagerService#mInstallLock}. |
| */ |
| int performDexOpt(PackageParser.Package pkg, String[] instructionSets, |
| boolean forceDex, boolean defer, boolean inclDependencies) { |
| ArraySet<String> done; |
| if (inclDependencies && (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null)) { |
| done = new ArraySet<String>(); |
| done.add(pkg.packageName); |
| } else { |
| done = null; |
| } |
| synchronized (mPackageManagerService.mInstallLock) { |
| final boolean useLock = mSystemReady; |
| if (useLock) { |
| mDexoptWakeLock.setWorkSource(new WorkSource(pkg.applicationInfo.uid)); |
| mDexoptWakeLock.acquire(); |
| } |
| try { |
| return performDexOptLI(pkg, instructionSets, forceDex, defer, done); |
| } finally { |
| if (useLock) { |
| mDexoptWakeLock.release(); |
| } |
| } |
| } |
| } |
| |
| private int performDexOptLI(PackageParser.Package pkg, String[] targetInstructionSets, |
| boolean forceDex, boolean defer, ArraySet<String> done) { |
| final String[] instructionSets = targetInstructionSets != null ? |
| targetInstructionSets : getAppDexInstructionSets(pkg.applicationInfo); |
| |
| if (done != null) { |
| done.add(pkg.packageName); |
| if (pkg.usesLibraries != null) { |
| performDexOptLibsLI(pkg.usesLibraries, instructionSets, forceDex, defer, done); |
| } |
| if (pkg.usesOptionalLibraries != null) { |
| performDexOptLibsLI(pkg.usesOptionalLibraries, instructionSets, forceDex, defer, |
| done); |
| } |
| } |
| |
| if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_HAS_CODE) == 0) { |
| return DEX_OPT_SKIPPED; |
| } |
| |
| final boolean vmSafeMode = (pkg.applicationInfo.flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0; |
| final boolean debuggable = (pkg.applicationInfo.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0; |
| |
| final List<String> paths = pkg.getAllCodePathsExcludingResourceOnly(); |
| boolean performedDexOpt = false; |
| // There are three basic cases here: |
| // 1.) we need to dexopt, either because we are forced or it is needed |
| // 2.) we are deferring a needed dexopt |
| // 3.) we are skipping an unneeded dexopt |
| final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets); |
| for (String dexCodeInstructionSet : dexCodeInstructionSets) { |
| if (!forceDex && pkg.mDexOptPerformed.contains(dexCodeInstructionSet)) { |
| continue; |
| } |
| |
| for (String path : paths) { |
| final int dexoptNeeded; |
| if (forceDex) { |
| dexoptNeeded = DexFile.DEX2OAT_NEEDED; |
| } else { |
| try { |
| dexoptNeeded = DexFile.getDexOptNeeded(path, pkg.packageName, |
| dexCodeInstructionSet, defer); |
| } catch (IOException ioe) { |
| Slog.w(TAG, "IOException reading apk: " + path, ioe); |
| return DEX_OPT_FAILED; |
| } |
| } |
| |
| if (!forceDex && defer && dexoptNeeded != DexFile.NO_DEXOPT_NEEDED) { |
| // We're deciding to defer a needed dexopt. Don't bother dexopting for other |
| // paths and instruction sets. We'll deal with them all together when we process |
| // our list of deferred dexopts. |
| addPackageForDeferredDexopt(pkg); |
| return DEX_OPT_DEFERRED; |
| } |
| |
| if (dexoptNeeded != DexFile.NO_DEXOPT_NEEDED) { |
| final String dexoptType; |
| String oatDir = null; |
| if (dexoptNeeded == DexFile.DEX2OAT_NEEDED) { |
| dexoptType = "dex2oat"; |
| try { |
| oatDir = createOatDirIfSupported(pkg, dexCodeInstructionSet); |
| } catch (IOException ioe) { |
| Slog.w(TAG, "Unable to create oatDir for package: " + pkg.packageName); |
| return DEX_OPT_FAILED; |
| } |
| } else if (dexoptNeeded == DexFile.PATCHOAT_NEEDED) { |
| dexoptType = "patchoat"; |
| } else if (dexoptNeeded == DexFile.SELF_PATCHOAT_NEEDED) { |
| dexoptType = "self patchoat"; |
| } else { |
| throw new IllegalStateException("Invalid dexopt needed: " + dexoptNeeded); |
| } |
| |
| Log.i(TAG, "Running dexopt (" + dexoptType + ") on: " + path + " pkg=" |
| + pkg.applicationInfo.packageName + " isa=" + dexCodeInstructionSet |
| + " vmSafeMode=" + vmSafeMode + " debuggable=" + debuggable |
| + " oatDir = " + oatDir); |
| final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid); |
| final int ret = mPackageManagerService.mInstaller.dexopt(path, sharedGid, |
| !pkg.isForwardLocked(), pkg.packageName, dexCodeInstructionSet, |
| dexoptNeeded, vmSafeMode, debuggable, oatDir); |
| |
| // Dex2oat might fail due to compiler / verifier errors. We soldier on |
| // regardless, and attempt to interpret the app as a safety net. |
| if (ret == 0) { |
| performedDexOpt = true; |
| } |
| } |
| } |
| |
| // At this point we haven't failed dexopt and we haven't deferred dexopt. We must |
| // either have either succeeded dexopt, or have had getDexOptNeeded tell us |
| // it isn't required. We therefore mark that this package doesn't need dexopt unless |
| // it's forced. performedDexOpt will tell us whether we performed dex-opt or skipped |
| // it. |
| pkg.mDexOptPerformed.add(dexCodeInstructionSet); |
| } |
| |
| // If we've gotten here, we're sure that no error occurred and that we haven't |
| // deferred dex-opt. We've either dex-opted one more paths or instruction sets or |
| // we've skipped all of them because they are up to date. In both cases this |
| // package doesn't need dexopt any longer. |
| return performedDexOpt ? DEX_OPT_PERFORMED : DEX_OPT_SKIPPED; |
| } |
| |
| /** |
| * Creates oat dir for the specified package. In certain cases oat directory |
| * <strong>cannot</strong> be created: |
| * <ul> |
| * <li>{@code pkg} is a system app, which is not updated.</li> |
| * <li>Package location is not a directory, i.e. monolithic install.</li> |
| * </ul> |
| * |
| * @return Absolute path to the oat directory or null, if oat directory |
| * cannot be created. |
| */ |
| @Nullable |
| private String createOatDirIfSupported(PackageParser.Package pkg, String dexInstructionSet) |
| throws IOException { |
| if (!pkg.canHaveOatDir()) { |
| return null; |
| } |
| File codePath = new File(pkg.codePath); |
| if (codePath.isDirectory()) { |
| File oatDir = getOatDir(codePath); |
| mPackageManagerService.mInstaller.createOatDir(oatDir.getAbsolutePath(), |
| dexInstructionSet); |
| return oatDir.getAbsolutePath(); |
| } |
| return null; |
| } |
| |
| static File getOatDir(File codePath) { |
| return new File(codePath, OAT_DIR_NAME); |
| } |
| |
| private void performDexOptLibsLI(ArrayList<String> libs, String[] instructionSets, |
| boolean forceDex, boolean defer, ArraySet<String> done) { |
| for (String libName : libs) { |
| PackageParser.Package libPkg = mPackageManagerService.findSharedNonSystemLibrary( |
| libName); |
| if (libPkg != null && !done.contains(libName)) { |
| performDexOptLI(libPkg, instructionSets, forceDex, defer, done); |
| } |
| } |
| } |
| |
| /** |
| * Clears set of deferred dexopt packages. |
| * @return content of dexopt set if it was not empty |
| */ |
| public ArraySet<PackageParser.Package> clearDeferredDexOptPackages() { |
| ArraySet<PackageParser.Package> result = mDeferredDexOpt; |
| mDeferredDexOpt = null; |
| return result; |
| } |
| |
| public void addPackageForDeferredDexopt(PackageParser.Package pkg) { |
| if (mDeferredDexOpt == null) { |
| mDeferredDexOpt = new ArraySet<>(); |
| } |
| mDeferredDexOpt.add(pkg); |
| } |
| |
| void systemReady() { |
| mSystemReady = true; |
| } |
| } |