PackageDexOptimizer.java revision 576e6c0cbb0231d6650dee70319d7443c601fa1b
1/* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 17package com.android.server.pm; 18 19import android.annotation.Nullable; 20import android.content.Context; 21import android.content.pm.ApplicationInfo; 22import android.content.pm.PackageParser; 23import android.os.FileUtils; 24import android.os.PowerManager; 25import android.os.SystemClock; 26import android.os.SystemProperties; 27import android.os.UserHandle; 28import android.os.WorkSource; 29import android.util.Log; 30import android.util.Slog; 31 32import com.android.internal.annotations.GuardedBy; 33import com.android.internal.util.IndentingPrintWriter; 34import com.android.server.pm.Installer.InstallerException; 35import com.android.server.pm.dex.DexManager; 36import com.android.server.pm.dex.DexoptOptions; 37import com.android.server.pm.dex.DexoptUtils; 38import com.android.server.pm.dex.PackageDexUsage; 39 40import java.io.File; 41import java.io.IOException; 42import java.util.ArrayList; 43import java.util.Arrays; 44import java.util.List; 45import java.util.Map; 46 47import dalvik.system.DexFile; 48 49import static com.android.server.pm.Installer.DEXOPT_BOOTCOMPLETE; 50import static com.android.server.pm.Installer.DEXOPT_DEBUGGABLE; 51import static com.android.server.pm.Installer.DEXOPT_PROFILE_GUIDED; 52import static com.android.server.pm.Installer.DEXOPT_PUBLIC; 53import static com.android.server.pm.Installer.DEXOPT_SECONDARY_DEX; 54import static com.android.server.pm.Installer.DEXOPT_FORCE; 55import static com.android.server.pm.Installer.DEXOPT_STORAGE_CE; 56import static com.android.server.pm.Installer.DEXOPT_STORAGE_DE; 57import static com.android.server.pm.InstructionSets.getAppDexInstructionSets; 58import static com.android.server.pm.InstructionSets.getDexCodeInstructionSets; 59 60import static com.android.server.pm.PackageManagerService.WATCHDOG_TIMEOUT; 61 62import static dalvik.system.DexFile.getNonProfileGuidedCompilerFilter; 63import static dalvik.system.DexFile.getSafeModeCompilerFilter; 64import static dalvik.system.DexFile.isProfileGuidedCompilerFilter; 65 66/** 67 * Helper class for running dexopt command on packages. 68 */ 69public class PackageDexOptimizer { 70 private static final String TAG = "PackageManager.DexOptimizer"; 71 static final String OAT_DIR_NAME = "oat"; 72 // TODO b/19550105 Remove error codes and use exceptions 73 public static final int DEX_OPT_SKIPPED = 0; 74 public static final int DEX_OPT_PERFORMED = 1; 75 public static final int DEX_OPT_FAILED = -1; 76 // One minute over PM WATCHDOG_TIMEOUT 77 private static final long WAKELOCK_TIMEOUT_MS = WATCHDOG_TIMEOUT + 1000 * 60; 78 79 /** Special library name that skips shared libraries check during compilation. */ 80 public static final String SKIP_SHARED_LIBRARY_CHECK = "&"; 81 82 @GuardedBy("mInstallLock") 83 private final Installer mInstaller; 84 private final Object mInstallLock; 85 86 @GuardedBy("mInstallLock") 87 private final PowerManager.WakeLock mDexoptWakeLock; 88 private volatile boolean mSystemReady; 89 90 PackageDexOptimizer(Installer installer, Object installLock, Context context, 91 String wakeLockTag) { 92 this.mInstaller = installer; 93 this.mInstallLock = installLock; 94 95 PowerManager powerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE); 96 mDexoptWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, wakeLockTag); 97 } 98 99 protected PackageDexOptimizer(PackageDexOptimizer from) { 100 this.mInstaller = from.mInstaller; 101 this.mInstallLock = from.mInstallLock; 102 this.mDexoptWakeLock = from.mDexoptWakeLock; 103 this.mSystemReady = from.mSystemReady; 104 } 105 106 static boolean canOptimizePackage(PackageParser.Package pkg) { 107 // We do not dexopt a package with no code. 108 if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_HAS_CODE) == 0) { 109 return false; 110 } 111 112 // We do not dexopt a priv-app package when pm.dexopt.priv-apps is false. 113 if (pkg.isPrivilegedApp()) { 114 return SystemProperties.getBoolean("pm.dexopt.priv-apps", true); 115 } 116 117 return true; 118 } 119 120 /** 121 * Performs dexopt on all code paths and libraries of the specified package for specified 122 * instruction sets. 123 * 124 * <p>Calls to {@link com.android.server.pm.Installer#dexopt} on {@link #mInstaller} are 125 * synchronized on {@link #mInstallLock}. 126 */ 127 int performDexOpt(PackageParser.Package pkg, String[] sharedLibraries, 128 String[] instructionSets, CompilerStats.PackageStats packageStats, 129 PackageDexUsage.PackageUseInfo packageUseInfo, DexoptOptions options) { 130 if (!canOptimizePackage(pkg)) { 131 return DEX_OPT_SKIPPED; 132 } 133 synchronized (mInstallLock) { 134 final long acquireTime = acquireWakeLockLI(pkg.applicationInfo.uid); 135 try { 136 return performDexOptLI(pkg, sharedLibraries, instructionSets, 137 packageStats, packageUseInfo, options); 138 } finally { 139 releaseWakeLockLI(acquireTime); 140 } 141 } 142 } 143 144 /** 145 * Performs dexopt on all code paths of the given package. 146 * It assumes the install lock is held. 147 */ 148 @GuardedBy("mInstallLock") 149 private int performDexOptLI(PackageParser.Package pkg, String[] sharedLibraries, 150 String[] targetInstructionSets, CompilerStats.PackageStats packageStats, 151 PackageDexUsage.PackageUseInfo packageUseInfo, DexoptOptions options) { 152 final String[] instructionSets = targetInstructionSets != null ? 153 targetInstructionSets : getAppDexInstructionSets(pkg.applicationInfo); 154 final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets); 155 final List<String> paths = pkg.getAllCodePaths(); 156 final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid); 157 158 // Get the class loader context dependencies. 159 // For each code path in the package, this array contains the class loader context that 160 // needs to be passed to dexopt in order to ensure correct optimizations. 161 boolean[] pathsWithCode = new boolean[paths.size()]; 162 pathsWithCode[0] = (pkg.applicationInfo.flags & ApplicationInfo.FLAG_HAS_CODE) != 0; 163 for (int i = 1; i < paths.size(); i++) { 164 pathsWithCode[i] = (pkg.splitFlags[i - 1] & ApplicationInfo.FLAG_HAS_CODE) != 0; 165 } 166 String[] classLoaderContexts = DexoptUtils.getClassLoaderContexts( 167 pkg.applicationInfo, sharedLibraries, pathsWithCode); 168 169 // Sanity check that we do not call dexopt with inconsistent data. 170 if (paths.size() != classLoaderContexts.length) { 171 String[] splitCodePaths = pkg.applicationInfo.getSplitCodePaths(); 172 throw new IllegalStateException("Inconsistent information " 173 + "between PackageParser.Package and its ApplicationInfo. " 174 + "pkg.getAllCodePaths=" + paths 175 + " pkg.applicationInfo.getBaseCodePath=" + pkg.applicationInfo.getBaseCodePath() 176 + " pkg.applicationInfo.getSplitCodePaths=" 177 + (splitCodePaths == null ? "null" : Arrays.toString(splitCodePaths))); 178 } 179 180 int result = DEX_OPT_SKIPPED; 181 for (int i = 0; i < paths.size(); i++) { 182 // Skip paths that have no code. 183 if (!pathsWithCode[i]) { 184 continue; 185 } 186 if (classLoaderContexts[i] == null) { 187 throw new IllegalStateException("Inconsistent information in the " 188 + "package structure. A split is marked to contain code " 189 + "but has no dependency listed. Index=" + i + " path=" + paths.get(i)); 190 } 191 192 // Append shared libraries with split dependencies for this split. 193 String path = paths.get(i); 194 if (options.getSplitName() != null) { 195 // We are asked to compile only a specific split. Check that the current path is 196 // what we are looking for. 197 if (!options.getSplitName().equals(new File(path).getName())) { 198 continue; 199 } 200 } 201 202 final boolean isUsedByOtherApps = options.isDexoptAsSharedLibrary() 203 || packageUseInfo.isUsedByOtherApps(path); 204 final String compilerFilter = getRealCompilerFilter(pkg.applicationInfo, 205 options.getCompilerFilter(), isUsedByOtherApps); 206 final boolean profileUpdated = options.isCheckForProfileUpdates() && 207 isProfileUpdated(pkg, sharedGid, compilerFilter); 208 209 // Get the dexopt flags after getRealCompilerFilter to make sure we get the correct 210 // flags. 211 final int dexoptFlags = getDexFlags(pkg, compilerFilter, options.isBootComplete()); 212 213 for (String dexCodeIsa : dexCodeInstructionSets) { 214 int newResult = dexOptPath(pkg, path, dexCodeIsa, compilerFilter, 215 profileUpdated, classLoaderContexts[i], dexoptFlags, sharedGid, 216 packageStats, options.isDowngrade()); 217 // The end result is: 218 // - FAILED if any path failed, 219 // - PERFORMED if at least one path needed compilation, 220 // - SKIPPED when all paths are up to date 221 if ((result != DEX_OPT_FAILED) && (newResult != DEX_OPT_SKIPPED)) { 222 result = newResult; 223 } 224 } 225 } 226 return result; 227 } 228 229 /** 230 * Performs dexopt on the {@code path} belonging to the package {@code pkg}. 231 * 232 * @return 233 * DEX_OPT_FAILED if there was any exception during dexopt 234 * DEX_OPT_PERFORMED if dexopt was performed successfully on the given path. 235 * DEX_OPT_SKIPPED if the path does not need to be deopt-ed. 236 */ 237 @GuardedBy("mInstallLock") 238 private int dexOptPath(PackageParser.Package pkg, String path, String isa, 239 String compilerFilter, boolean profileUpdated, String classLoaderContext, 240 int dexoptFlags, int uid, CompilerStats.PackageStats packageStats, boolean downgrade) { 241 int dexoptNeeded = getDexoptNeeded(path, isa, compilerFilter, classLoaderContext, 242 profileUpdated, downgrade); 243 if (Math.abs(dexoptNeeded) == DexFile.NO_DEXOPT_NEEDED) { 244 return DEX_OPT_SKIPPED; 245 } 246 247 // TODO(calin): there's no need to try to create the oat dir over and over again, 248 // especially since it involve an extra installd call. We should create 249 // if (if supported) on the fly during the dexopt call. 250 String oatDir = createOatDirIfSupported(pkg, isa); 251 252 Log.i(TAG, "Running dexopt (dexoptNeeded=" + dexoptNeeded + ") on: " + path 253 + " pkg=" + pkg.applicationInfo.packageName + " isa=" + isa 254 + " dexoptFlags=" + printDexoptFlags(dexoptFlags) 255 + " targetFilter=" + compilerFilter + " oatDir=" + oatDir 256 + " classLoaderContext=" + classLoaderContext); 257 258 try { 259 long startTime = System.currentTimeMillis(); 260 261 // TODO: Consider adding 2 different APIs for primary and secondary dexopt. 262 // installd only uses downgrade flag for secondary dex files and ignores it for 263 // primary dex files. 264 mInstaller.dexopt(path, uid, pkg.packageName, isa, dexoptNeeded, oatDir, dexoptFlags, 265 compilerFilter, pkg.volumeUuid, classLoaderContext, pkg.applicationInfo.seInfo, 266 false /* downgrade*/); 267 268 if (packageStats != null) { 269 long endTime = System.currentTimeMillis(); 270 packageStats.setCompileTime(path, (int)(endTime - startTime)); 271 } 272 return DEX_OPT_PERFORMED; 273 } catch (InstallerException e) { 274 Slog.w(TAG, "Failed to dexopt", e); 275 return DEX_OPT_FAILED; 276 } 277 } 278 279 /** 280 * Performs dexopt on the secondary dex {@code path} belonging to the app {@code info}. 281 * 282 * @return 283 * DEX_OPT_FAILED if there was any exception during dexopt 284 * DEX_OPT_PERFORMED if dexopt was performed successfully on the given path. 285 * NOTE that DEX_OPT_PERFORMED for secondary dex files includes the case when the dex file 286 * didn't need an update. That's because at the moment we don't get more than success/failure 287 * from installd. 288 * 289 * TODO(calin): Consider adding return codes to installd dexopt invocation (rather than 290 * throwing exceptions). Or maybe make a separate call to installd to get DexOptNeeded, though 291 * that seems wasteful. 292 */ 293 public int dexOptSecondaryDexPath(ApplicationInfo info, String path, 294 PackageDexUsage.DexUseInfo dexUseInfo, DexoptOptions options) { 295 synchronized (mInstallLock) { 296 final long acquireTime = acquireWakeLockLI(info.uid); 297 try { 298 return dexOptSecondaryDexPathLI(info, path, dexUseInfo, options); 299 } finally { 300 releaseWakeLockLI(acquireTime); 301 } 302 } 303 } 304 305 @GuardedBy("mInstallLock") 306 private long acquireWakeLockLI(final int uid) { 307 // During boot the system doesn't need to instantiate and obtain a wake lock. 308 // PowerManager might not be ready, but that doesn't mean that we can't proceed with 309 // dexopt. 310 if (!mSystemReady) { 311 return -1; 312 } 313 mDexoptWakeLock.setWorkSource(new WorkSource(uid)); 314 mDexoptWakeLock.acquire(WAKELOCK_TIMEOUT_MS); 315 return SystemClock.elapsedRealtime(); 316 } 317 318 @GuardedBy("mInstallLock") 319 private void releaseWakeLockLI(final long acquireTime) { 320 if (acquireTime < 0) { 321 return; 322 } 323 try { 324 if (mDexoptWakeLock.isHeld()) { 325 mDexoptWakeLock.release(); 326 } 327 final long duration = SystemClock.elapsedRealtime() - acquireTime; 328 if (duration >= WAKELOCK_TIMEOUT_MS) { 329 Slog.wtf(TAG, "WakeLock " + mDexoptWakeLock.getTag() 330 + " time out. Operation took " + duration + " ms. Thread: " 331 + Thread.currentThread().getName()); 332 } 333 } catch (Exception e) { 334 Slog.wtf(TAG, "Error while releasing " + mDexoptWakeLock.getTag() + " lock", e); 335 } 336 } 337 338 @GuardedBy("mInstallLock") 339 private int dexOptSecondaryDexPathLI(ApplicationInfo info, String path, 340 PackageDexUsage.DexUseInfo dexUseInfo, DexoptOptions options) { 341 if (options.isDexoptOnlySharedDex() && !dexUseInfo.isUsedByOtherApps()) { 342 // We are asked to optimize only the dex files used by other apps and this is not 343 // on of them: skip it. 344 return DEX_OPT_SKIPPED; 345 } 346 347 String compilerFilter = getRealCompilerFilter(info, options.getCompilerFilter(), 348 dexUseInfo.isUsedByOtherApps()); 349 // Get the dexopt flags after getRealCompilerFilter to make sure we get the correct flags. 350 // Secondary dex files are currently not compiled at boot. 351 int dexoptFlags = getDexFlags(info, compilerFilter, /* bootComplete */ true) 352 | DEXOPT_SECONDARY_DEX; 353 // Check the app storage and add the appropriate flags. 354 if (info.deviceProtectedDataDir != null && 355 FileUtils.contains(info.deviceProtectedDataDir, path)) { 356 dexoptFlags |= DEXOPT_STORAGE_DE; 357 } else if (info.credentialProtectedDataDir != null && 358 FileUtils.contains(info.credentialProtectedDataDir, path)) { 359 dexoptFlags |= DEXOPT_STORAGE_CE; 360 } else { 361 Slog.e(TAG, "Could not infer CE/DE storage for package " + info.packageName); 362 return DEX_OPT_FAILED; 363 } 364 Log.d(TAG, "Running dexopt on: " + path 365 + " pkg=" + info.packageName + " isa=" + dexUseInfo.getLoaderIsas() 366 + " dexoptFlags=" + printDexoptFlags(dexoptFlags) 367 + " target-filter=" + compilerFilter); 368 369 // TODO(calin): b/64530081 b/66984396. Use SKIP_SHARED_LIBRARY_CHECK for the context 370 // (instead of dexUseInfo.getClassLoaderContext()) in order to compile secondary dex files 371 // in isolation (and avoid to extract/verify the main apk if it's in the class path). 372 // Note this trades correctness for performance since the resulting slow down is 373 // unacceptable in some cases until b/64530081 is fixed. 374 String classLoaderContext = SKIP_SHARED_LIBRARY_CHECK; 375 376 try { 377 for (String isa : dexUseInfo.getLoaderIsas()) { 378 // Reuse the same dexopt path as for the primary apks. We don't need all the 379 // arguments as some (dexopNeeded and oatDir) will be computed by installd because 380 // system server cannot read untrusted app content. 381 // TODO(calin): maybe add a separate call. 382 mInstaller.dexopt(path, info.uid, info.packageName, isa, /*dexoptNeeded*/ 0, 383 /*oatDir*/ null, dexoptFlags, 384 compilerFilter, info.volumeUuid, classLoaderContext, info.seInfoUser, 385 options.isDowngrade()); 386 } 387 388 return DEX_OPT_PERFORMED; 389 } catch (InstallerException e) { 390 Slog.w(TAG, "Failed to dexopt", e); 391 return DEX_OPT_FAILED; 392 } 393 } 394 395 /** 396 * Adjust the given dexopt-needed value. Can be overridden to influence the decision to 397 * optimize or not (and in what way). 398 */ 399 protected int adjustDexoptNeeded(int dexoptNeeded) { 400 return dexoptNeeded; 401 } 402 403 /** 404 * Adjust the given dexopt flags that will be passed to the installer. 405 */ 406 protected int adjustDexoptFlags(int dexoptFlags) { 407 return dexoptFlags; 408 } 409 410 /** 411 * Dumps the dexopt state of the given package {@code pkg} to the given {@code PrintWriter}. 412 */ 413 void dumpDexoptState(IndentingPrintWriter pw, PackageParser.Package pkg, 414 PackageDexUsage.PackageUseInfo useInfo) { 415 final String[] instructionSets = getAppDexInstructionSets(pkg.applicationInfo); 416 final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets); 417 418 final List<String> paths = pkg.getAllCodePathsExcludingResourceOnly(); 419 420 for (String path : paths) { 421 pw.println("path: " + path); 422 pw.increaseIndent(); 423 424 for (String isa : dexCodeInstructionSets) { 425 String status = null; 426 try { 427 status = DexFile.getDexFileStatus(path, isa); 428 } catch (IOException ioe) { 429 status = "[Exception]: " + ioe.getMessage(); 430 } 431 pw.println(isa + ": " + status); 432 } 433 434 if (useInfo.isUsedByOtherApps(path)) { 435 pw.println("used by other apps: " + useInfo.getLoadingPackages(path)); 436 } 437 438 Map<String, PackageDexUsage.DexUseInfo> dexUseInfoMap = useInfo.getDexUseInfoMap(); 439 440 if (!dexUseInfoMap.isEmpty()) { 441 pw.println("known secondary dex files:"); 442 pw.increaseIndent(); 443 for (Map.Entry<String, PackageDexUsage.DexUseInfo> e : dexUseInfoMap.entrySet()) { 444 String dex = e.getKey(); 445 PackageDexUsage.DexUseInfo dexUseInfo = e.getValue(); 446 pw.println(dex); 447 pw.increaseIndent(); 448 // TODO(calin): get the status of the oat file (needs installd call) 449 pw.println("class loader context: " + dexUseInfo.getClassLoaderContext()); 450 if (dexUseInfo.isUsedByOtherApps()) { 451 pw.println("used by other apps: " + dexUseInfo.getLoadingPackages()); 452 } 453 pw.decreaseIndent(); 454 } 455 pw.decreaseIndent(); 456 } 457 pw.decreaseIndent(); 458 } 459 } 460 461 /** 462 * Returns the compiler filter that should be used to optimize the package code. 463 * The target filter will be updated if the package code is used by other apps 464 * or if it has the safe mode flag set. 465 */ 466 private String getRealCompilerFilter(ApplicationInfo info, String targetCompilerFilter, 467 boolean isUsedByOtherApps) { 468 int flags = info.flags; 469 boolean vmSafeMode = (flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0; 470 if (vmSafeMode) { 471 return getSafeModeCompilerFilter(targetCompilerFilter); 472 } 473 474 if (isProfileGuidedCompilerFilter(targetCompilerFilter) && isUsedByOtherApps) { 475 // If the dex files is used by other apps, apply the shared filter. 476 return PackageManagerServiceCompilerMapping.getCompilerFilterForReason( 477 PackageManagerService.REASON_SHARED); 478 } 479 480 return targetCompilerFilter; 481 } 482 483 /** 484 * Computes the dex flags that needs to be pass to installd for the given package and compiler 485 * filter. 486 */ 487 private int getDexFlags(PackageParser.Package pkg, String compilerFilter, 488 boolean bootComplete) { 489 return getDexFlags(pkg.applicationInfo, compilerFilter, bootComplete); 490 } 491 492 private int getDexFlags(ApplicationInfo info, String compilerFilter, boolean bootComplete) { 493 int flags = info.flags; 494 boolean debuggable = (flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0; 495 // Profile guide compiled oat files should not be public. 496 boolean isProfileGuidedFilter = isProfileGuidedCompilerFilter(compilerFilter); 497 boolean isPublic = !info.isForwardLocked() && !isProfileGuidedFilter; 498 int profileFlag = isProfileGuidedFilter ? DEXOPT_PROFILE_GUIDED : 0; 499 int dexFlags = 500 (isPublic ? DEXOPT_PUBLIC : 0) 501 | (debuggable ? DEXOPT_DEBUGGABLE : 0) 502 | profileFlag 503 | (bootComplete ? DEXOPT_BOOTCOMPLETE : 0); 504 return adjustDexoptFlags(dexFlags); 505 } 506 507 /** 508 * Assesses if there's a need to perform dexopt on {@code path} for the given 509 * configuration (isa, compiler filter, profile). 510 */ 511 private int getDexoptNeeded(String path, String isa, String compilerFilter, 512 String classLoaderContext, boolean newProfile, boolean downgrade) { 513 int dexoptNeeded; 514 try { 515 dexoptNeeded = DexFile.getDexOptNeeded(path, isa, compilerFilter, classLoaderContext, 516 newProfile, downgrade); 517 } catch (IOException ioe) { 518 Slog.w(TAG, "IOException reading apk: " + path, ioe); 519 return DEX_OPT_FAILED; 520 } 521 return adjustDexoptNeeded(dexoptNeeded); 522 } 523 524 /** 525 * Checks if there is an update on the profile information of the {@code pkg}. 526 * If the compiler filter is not profile guided the method returns false. 527 * 528 * Note that this is a "destructive" operation with side effects. Under the hood the 529 * current profile and the reference profile will be merged and subsequent calls 530 * may return a different result. 531 */ 532 private boolean isProfileUpdated(PackageParser.Package pkg, int uid, String compilerFilter) { 533 // Check if we are allowed to merge and if the compiler filter is profile guided. 534 if (!isProfileGuidedCompilerFilter(compilerFilter)) { 535 return false; 536 } 537 // Merge profiles. It returns whether or not there was an updated in the profile info. 538 try { 539 return mInstaller.mergeProfiles(uid, pkg.packageName); 540 } catch (InstallerException e) { 541 Slog.w(TAG, "Failed to merge profiles", e); 542 } 543 return false; 544 } 545 546 /** 547 * Creates oat dir for the specified package if needed and supported. 548 * In certain cases oat directory 549 * <strong>cannot</strong> be created: 550 * <ul> 551 * <li>{@code pkg} is a system app, which is not updated.</li> 552 * <li>Package location is not a directory, i.e. monolithic install.</li> 553 * </ul> 554 * 555 * @return Absolute path to the oat directory or null, if oat directory 556 * cannot be created. 557 */ 558 @Nullable 559 private String createOatDirIfSupported(PackageParser.Package pkg, String dexInstructionSet) { 560 if (!pkg.canHaveOatDir()) { 561 return null; 562 } 563 File codePath = new File(pkg.codePath); 564 if (codePath.isDirectory()) { 565 // TODO(calin): why do we create this only if the codePath is a directory? (i.e for 566 // cluster packages). It seems that the logic for the folder creation is 567 // split between installd and here. 568 File oatDir = getOatDir(codePath); 569 try { 570 mInstaller.createOatDir(oatDir.getAbsolutePath(), dexInstructionSet); 571 } catch (InstallerException e) { 572 Slog.w(TAG, "Failed to create oat dir", e); 573 return null; 574 } 575 return oatDir.getAbsolutePath(); 576 } 577 return null; 578 } 579 580 static File getOatDir(File codePath) { 581 return new File(codePath, OAT_DIR_NAME); 582 } 583 584 void systemReady() { 585 mSystemReady = true; 586 } 587 588 private String printDexoptFlags(int flags) { 589 ArrayList<String> flagsList = new ArrayList<>(); 590 591 if ((flags & DEXOPT_BOOTCOMPLETE) == DEXOPT_BOOTCOMPLETE) { 592 flagsList.add("boot_complete"); 593 } 594 if ((flags & DEXOPT_DEBUGGABLE) == DEXOPT_DEBUGGABLE) { 595 flagsList.add("debuggable"); 596 } 597 if ((flags & DEXOPT_PROFILE_GUIDED) == DEXOPT_PROFILE_GUIDED) { 598 flagsList.add("profile_guided"); 599 } 600 if ((flags & DEXOPT_PUBLIC) == DEXOPT_PUBLIC) { 601 flagsList.add("public"); 602 } 603 if ((flags & DEXOPT_SECONDARY_DEX) == DEXOPT_SECONDARY_DEX) { 604 flagsList.add("secondary"); 605 } 606 if ((flags & DEXOPT_FORCE) == DEXOPT_FORCE) { 607 flagsList.add("force"); 608 } 609 if ((flags & DEXOPT_STORAGE_CE) == DEXOPT_STORAGE_CE) { 610 flagsList.add("storage_ce"); 611 } 612 if ((flags & DEXOPT_STORAGE_DE) == DEXOPT_STORAGE_DE) { 613 flagsList.add("storage_de"); 614 } 615 616 return String.join(",", flagsList); 617 } 618 619 /** 620 * A specialized PackageDexOptimizer that overrides already-installed checks, forcing a 621 * dexopt path. 622 */ 623 public static class ForcedUpdatePackageDexOptimizer extends PackageDexOptimizer { 624 625 public ForcedUpdatePackageDexOptimizer(Installer installer, Object installLock, 626 Context context, String wakeLockTag) { 627 super(installer, installLock, context, wakeLockTag); 628 } 629 630 public ForcedUpdatePackageDexOptimizer(PackageDexOptimizer from) { 631 super(from); 632 } 633 634 @Override 635 protected int adjustDexoptNeeded(int dexoptNeeded) { 636 if (dexoptNeeded == DexFile.NO_DEXOPT_NEEDED) { 637 // Ensure compilation by pretending a compiler filter change on the 638 // apk/odex location (the reason for the '-'. A positive value means 639 // the 'oat' location). 640 return -DexFile.DEX2OAT_FOR_FILTER; 641 } 642 return dexoptNeeded; 643 } 644 645 @Override 646 protected int adjustDexoptFlags(int flags) { 647 // Add DEXOPT_FORCE flag to signal installd that it should force compilation 648 // and discard dexoptanalyzer result. 649 return flags | DEXOPT_FORCE; 650 } 651 } 652} 653