PackageDexOptimizer.java revision b981617ec752df09e253e760244dd739c4d4cb26
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.content.pm.dex.ArtManager; 24import android.content.pm.dex.DexMetadataHelper; 25import android.os.FileUtils; 26import android.os.PowerManager; 27import android.os.SystemClock; 28import android.os.SystemProperties; 29import android.os.UserHandle; 30import android.os.WorkSource; 31import android.util.Log; 32import android.util.Slog; 33 34import com.android.internal.annotations.GuardedBy; 35import com.android.internal.util.IndentingPrintWriter; 36import com.android.server.pm.Installer.InstallerException; 37import com.android.server.pm.dex.DexoptOptions; 38import com.android.server.pm.dex.DexoptUtils; 39import com.android.server.pm.dex.PackageDexUsage; 40 41import java.io.File; 42import java.io.IOException; 43import java.util.ArrayList; 44import java.util.Arrays; 45import java.util.List; 46import java.util.Map; 47 48import dalvik.system.DexFile; 49 50import static com.android.server.pm.Installer.DEXOPT_BOOTCOMPLETE; 51import static com.android.server.pm.Installer.DEXOPT_DEBUGGABLE; 52import static com.android.server.pm.Installer.DEXOPT_PROFILE_GUIDED; 53import static com.android.server.pm.Installer.DEXOPT_PUBLIC; 54import static com.android.server.pm.Installer.DEXOPT_SECONDARY_DEX; 55import static com.android.server.pm.Installer.DEXOPT_FORCE; 56import static com.android.server.pm.Installer.DEXOPT_STORAGE_CE; 57import static com.android.server.pm.Installer.DEXOPT_STORAGE_DE; 58import static com.android.server.pm.Installer.DEXOPT_IDLE_BACKGROUND_JOB; 59import static com.android.server.pm.Installer.DEXOPT_ENABLE_HIDDEN_API_CHECKS; 60import static com.android.server.pm.InstructionSets.getAppDexInstructionSets; 61import static com.android.server.pm.InstructionSets.getDexCodeInstructionSets; 62 63import static com.android.server.pm.PackageManagerService.WATCHDOG_TIMEOUT; 64 65import static com.android.server.pm.PackageManagerServiceCompilerMapping.getReasonName; 66 67import static dalvik.system.DexFile.getSafeModeCompilerFilter; 68import static dalvik.system.DexFile.isProfileGuidedCompilerFilter; 69 70/** 71 * Helper class for running dexopt command on packages. 72 */ 73public class PackageDexOptimizer { 74 private static final String TAG = "PackageManager.DexOptimizer"; 75 static final String OAT_DIR_NAME = "oat"; 76 // TODO b/19550105 Remove error codes and use exceptions 77 public static final int DEX_OPT_SKIPPED = 0; 78 public static final int DEX_OPT_PERFORMED = 1; 79 public static final int DEX_OPT_FAILED = -1; 80 // One minute over PM WATCHDOG_TIMEOUT 81 private static final long WAKELOCK_TIMEOUT_MS = WATCHDOG_TIMEOUT + 1000 * 60; 82 83 /** Special library name that skips shared libraries check during compilation. */ 84 public static final String SKIP_SHARED_LIBRARY_CHECK = "&"; 85 86 @GuardedBy("mInstallLock") 87 private final Installer mInstaller; 88 private final Object mInstallLock; 89 90 @GuardedBy("mInstallLock") 91 private final PowerManager.WakeLock mDexoptWakeLock; 92 private volatile boolean mSystemReady; 93 94 PackageDexOptimizer(Installer installer, Object installLock, Context context, 95 String wakeLockTag) { 96 this.mInstaller = installer; 97 this.mInstallLock = installLock; 98 99 PowerManager powerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE); 100 mDexoptWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, wakeLockTag); 101 } 102 103 protected PackageDexOptimizer(PackageDexOptimizer from) { 104 this.mInstaller = from.mInstaller; 105 this.mInstallLock = from.mInstallLock; 106 this.mDexoptWakeLock = from.mDexoptWakeLock; 107 this.mSystemReady = from.mSystemReady; 108 } 109 110 static boolean canOptimizePackage(PackageParser.Package pkg) { 111 // We do not dexopt a package with no code. 112 if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_HAS_CODE) == 0) { 113 return false; 114 } 115 116 // We do not dexopt a priv-app package when pm.dexopt.priv-apps is false. 117 if (pkg.isPrivilegedApp()) { 118 return SystemProperties.getBoolean("pm.dexopt.priv-apps", true); 119 } 120 121 return true; 122 } 123 124 /** 125 * Performs dexopt on all code paths and libraries of the specified package for specified 126 * instruction sets. 127 * 128 * <p>Calls to {@link com.android.server.pm.Installer#dexopt} on {@link #mInstaller} are 129 * synchronized on {@link #mInstallLock}. 130 */ 131 int performDexOpt(PackageParser.Package pkg, String[] sharedLibraries, 132 String[] instructionSets, CompilerStats.PackageStats packageStats, 133 PackageDexUsage.PackageUseInfo packageUseInfo, DexoptOptions options) { 134 if (pkg.applicationInfo.uid == -1) { 135 throw new IllegalArgumentException("Dexopt for " + pkg.packageName 136 + " has invalid uid."); 137 } 138 if (!canOptimizePackage(pkg)) { 139 return DEX_OPT_SKIPPED; 140 } 141 synchronized (mInstallLock) { 142 final long acquireTime = acquireWakeLockLI(pkg.applicationInfo.uid); 143 try { 144 return performDexOptLI(pkg, sharedLibraries, instructionSets, 145 packageStats, packageUseInfo, options); 146 } finally { 147 releaseWakeLockLI(acquireTime); 148 } 149 } 150 } 151 152 /** 153 * Performs dexopt on all code paths of the given package. 154 * It assumes the install lock is held. 155 */ 156 @GuardedBy("mInstallLock") 157 private int performDexOptLI(PackageParser.Package pkg, String[] sharedLibraries, 158 String[] targetInstructionSets, CompilerStats.PackageStats packageStats, 159 PackageDexUsage.PackageUseInfo packageUseInfo, DexoptOptions options) { 160 final String[] instructionSets = targetInstructionSets != null ? 161 targetInstructionSets : getAppDexInstructionSets(pkg.applicationInfo); 162 final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets); 163 final List<String> paths = pkg.getAllCodePaths(); 164 165 int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid); 166 if (sharedGid == -1) { 167 Slog.wtf(TAG, "Well this is awkward; package " + pkg.applicationInfo.name + " had UID " 168 + pkg.applicationInfo.uid, new Throwable()); 169 sharedGid = android.os.Process.NOBODY_UID; 170 } 171 172 // Get the class loader context dependencies. 173 // For each code path in the package, this array contains the class loader context that 174 // needs to be passed to dexopt in order to ensure correct optimizations. 175 boolean[] pathsWithCode = new boolean[paths.size()]; 176 pathsWithCode[0] = (pkg.applicationInfo.flags & ApplicationInfo.FLAG_HAS_CODE) != 0; 177 for (int i = 1; i < paths.size(); i++) { 178 pathsWithCode[i] = (pkg.splitFlags[i - 1] & ApplicationInfo.FLAG_HAS_CODE) != 0; 179 } 180 String[] classLoaderContexts = DexoptUtils.getClassLoaderContexts( 181 pkg.applicationInfo, sharedLibraries, pathsWithCode); 182 183 // Sanity check that we do not call dexopt with inconsistent data. 184 if (paths.size() != classLoaderContexts.length) { 185 String[] splitCodePaths = pkg.applicationInfo.getSplitCodePaths(); 186 throw new IllegalStateException("Inconsistent information " 187 + "between PackageParser.Package and its ApplicationInfo. " 188 + "pkg.getAllCodePaths=" + paths 189 + " pkg.applicationInfo.getBaseCodePath=" + pkg.applicationInfo.getBaseCodePath() 190 + " pkg.applicationInfo.getSplitCodePaths=" 191 + (splitCodePaths == null ? "null" : Arrays.toString(splitCodePaths))); 192 } 193 194 int result = DEX_OPT_SKIPPED; 195 for (int i = 0; i < paths.size(); i++) { 196 // Skip paths that have no code. 197 if (!pathsWithCode[i]) { 198 continue; 199 } 200 if (classLoaderContexts[i] == null) { 201 throw new IllegalStateException("Inconsistent information in the " 202 + "package structure. A split is marked to contain code " 203 + "but has no dependency listed. Index=" + i + " path=" + paths.get(i)); 204 } 205 206 // Append shared libraries with split dependencies for this split. 207 String path = paths.get(i); 208 if (options.getSplitName() != null) { 209 // We are asked to compile only a specific split. Check that the current path is 210 // what we are looking for. 211 if (!options.getSplitName().equals(new File(path).getName())) { 212 continue; 213 } 214 } 215 216 String profileName = ArtManager.getProfileName(i == 0 ? null : pkg.splitNames[i - 1]); 217 218 String dexMetadataPath = null; 219 if (options.isDexoptInstallWithDexMetadata()) { 220 File dexMetadataFile = DexMetadataHelper.findDexMetadataForFile(new File(path)); 221 dexMetadataPath = dexMetadataFile == null 222 ? null : dexMetadataFile.getAbsolutePath(); 223 } 224 225 final boolean isUsedByOtherApps = options.isDexoptAsSharedLibrary() 226 || packageUseInfo.isUsedByOtherApps(path); 227 final String compilerFilter = getRealCompilerFilter(pkg.applicationInfo, 228 options.getCompilerFilter(), isUsedByOtherApps); 229 final boolean profileUpdated = options.isCheckForProfileUpdates() && 230 isProfileUpdated(pkg, sharedGid, profileName, compilerFilter); 231 232 // Get the dexopt flags after getRealCompilerFilter to make sure we get the correct 233 // flags. 234 final int dexoptFlags = getDexFlags(pkg, compilerFilter, options); 235 236 for (String dexCodeIsa : dexCodeInstructionSets) { 237 int newResult = dexOptPath(pkg, path, dexCodeIsa, compilerFilter, 238 profileUpdated, classLoaderContexts[i], dexoptFlags, sharedGid, 239 packageStats, options.isDowngrade(), profileName, dexMetadataPath, 240 options.getCompilationReason()); 241 // The end result is: 242 // - FAILED if any path failed, 243 // - PERFORMED if at least one path needed compilation, 244 // - SKIPPED when all paths are up to date 245 if ((result != DEX_OPT_FAILED) && (newResult != DEX_OPT_SKIPPED)) { 246 result = newResult; 247 } 248 } 249 } 250 return result; 251 } 252 253 /** 254 * Performs dexopt on the {@code path} belonging to the package {@code pkg}. 255 * 256 * @return 257 * DEX_OPT_FAILED if there was any exception during dexopt 258 * DEX_OPT_PERFORMED if dexopt was performed successfully on the given path. 259 * DEX_OPT_SKIPPED if the path does not need to be deopt-ed. 260 */ 261 @GuardedBy("mInstallLock") 262 private int dexOptPath(PackageParser.Package pkg, String path, String isa, 263 String compilerFilter, boolean profileUpdated, String classLoaderContext, 264 int dexoptFlags, int uid, CompilerStats.PackageStats packageStats, boolean downgrade, 265 String profileName, String dexMetadataPath, int compilationReason) { 266 int dexoptNeeded = getDexoptNeeded(path, isa, compilerFilter, classLoaderContext, 267 profileUpdated, downgrade); 268 if (Math.abs(dexoptNeeded) == DexFile.NO_DEXOPT_NEEDED) { 269 return DEX_OPT_SKIPPED; 270 } 271 272 // TODO(calin): there's no need to try to create the oat dir over and over again, 273 // especially since it involve an extra installd call. We should create 274 // if (if supported) on the fly during the dexopt call. 275 String oatDir = createOatDirIfSupported(pkg, isa); 276 277 Log.i(TAG, "Running dexopt (dexoptNeeded=" + dexoptNeeded + ") on: " + path 278 + " pkg=" + pkg.applicationInfo.packageName + " isa=" + isa 279 + " dexoptFlags=" + printDexoptFlags(dexoptFlags) 280 + " targetFilter=" + compilerFilter + " oatDir=" + oatDir 281 + " classLoaderContext=" + classLoaderContext); 282 283 try { 284 long startTime = System.currentTimeMillis(); 285 286 // TODO: Consider adding 2 different APIs for primary and secondary dexopt. 287 // installd only uses downgrade flag for secondary dex files and ignores it for 288 // primary dex files. 289 mInstaller.dexopt(path, uid, pkg.packageName, isa, dexoptNeeded, oatDir, dexoptFlags, 290 compilerFilter, pkg.volumeUuid, classLoaderContext, pkg.applicationInfo.seInfo, 291 false /* downgrade*/, pkg.applicationInfo.targetSdkVersion, 292 profileName, dexMetadataPath, getReasonName(compilationReason)); 293 294 if (packageStats != null) { 295 long endTime = System.currentTimeMillis(); 296 packageStats.setCompileTime(path, (int)(endTime - startTime)); 297 } 298 return DEX_OPT_PERFORMED; 299 } catch (InstallerException e) { 300 Slog.w(TAG, "Failed to dexopt", e); 301 return DEX_OPT_FAILED; 302 } 303 } 304 305 /** 306 * Performs dexopt on the secondary dex {@code path} belonging to the app {@code info}. 307 * 308 * @return 309 * DEX_OPT_FAILED if there was any exception during dexopt 310 * DEX_OPT_PERFORMED if dexopt was performed successfully on the given path. 311 * NOTE that DEX_OPT_PERFORMED for secondary dex files includes the case when the dex file 312 * didn't need an update. That's because at the moment we don't get more than success/failure 313 * from installd. 314 * 315 * TODO(calin): Consider adding return codes to installd dexopt invocation (rather than 316 * throwing exceptions). Or maybe make a separate call to installd to get DexOptNeeded, though 317 * that seems wasteful. 318 */ 319 public int dexOptSecondaryDexPath(ApplicationInfo info, String path, 320 PackageDexUsage.DexUseInfo dexUseInfo, DexoptOptions options) { 321 if (info.uid == -1) { 322 throw new IllegalArgumentException("Dexopt for path " + path + " has invalid uid."); 323 } 324 synchronized (mInstallLock) { 325 final long acquireTime = acquireWakeLockLI(info.uid); 326 try { 327 return dexOptSecondaryDexPathLI(info, path, dexUseInfo, options); 328 } finally { 329 releaseWakeLockLI(acquireTime); 330 } 331 } 332 } 333 334 @GuardedBy("mInstallLock") 335 private long acquireWakeLockLI(final int uid) { 336 // During boot the system doesn't need to instantiate and obtain a wake lock. 337 // PowerManager might not be ready, but that doesn't mean that we can't proceed with 338 // dexopt. 339 if (!mSystemReady) { 340 return -1; 341 } 342 mDexoptWakeLock.setWorkSource(new WorkSource(uid)); 343 mDexoptWakeLock.acquire(WAKELOCK_TIMEOUT_MS); 344 return SystemClock.elapsedRealtime(); 345 } 346 347 @GuardedBy("mInstallLock") 348 private void releaseWakeLockLI(final long acquireTime) { 349 if (acquireTime < 0) { 350 return; 351 } 352 try { 353 if (mDexoptWakeLock.isHeld()) { 354 mDexoptWakeLock.release(); 355 } 356 final long duration = SystemClock.elapsedRealtime() - acquireTime; 357 if (duration >= WAKELOCK_TIMEOUT_MS) { 358 Slog.wtf(TAG, "WakeLock " + mDexoptWakeLock.getTag() 359 + " time out. Operation took " + duration + " ms. Thread: " 360 + Thread.currentThread().getName()); 361 } 362 } catch (Exception e) { 363 Slog.wtf(TAG, "Error while releasing " + mDexoptWakeLock.getTag() + " lock", e); 364 } 365 } 366 367 @GuardedBy("mInstallLock") 368 private int dexOptSecondaryDexPathLI(ApplicationInfo info, String path, 369 PackageDexUsage.DexUseInfo dexUseInfo, DexoptOptions options) { 370 if (options.isDexoptOnlySharedDex() && !dexUseInfo.isUsedByOtherApps()) { 371 // We are asked to optimize only the dex files used by other apps and this is not 372 // on of them: skip it. 373 return DEX_OPT_SKIPPED; 374 } 375 376 String compilerFilter = getRealCompilerFilter(info, options.getCompilerFilter(), 377 dexUseInfo.isUsedByOtherApps()); 378 // Get the dexopt flags after getRealCompilerFilter to make sure we get the correct flags. 379 // Secondary dex files are currently not compiled at boot. 380 int dexoptFlags = getDexFlags(info, compilerFilter, options) | DEXOPT_SECONDARY_DEX; 381 // Check the app storage and add the appropriate flags. 382 if (info.deviceProtectedDataDir != null && 383 FileUtils.contains(info.deviceProtectedDataDir, path)) { 384 dexoptFlags |= DEXOPT_STORAGE_DE; 385 } else if (info.credentialProtectedDataDir != null && 386 FileUtils.contains(info.credentialProtectedDataDir, path)) { 387 dexoptFlags |= DEXOPT_STORAGE_CE; 388 } else { 389 Slog.e(TAG, "Could not infer CE/DE storage for package " + info.packageName); 390 return DEX_OPT_FAILED; 391 } 392 Log.d(TAG, "Running dexopt on: " + path 393 + " pkg=" + info.packageName + " isa=" + dexUseInfo.getLoaderIsas() 394 + " dexoptFlags=" + printDexoptFlags(dexoptFlags) 395 + " target-filter=" + compilerFilter); 396 397 // TODO(calin): b/64530081 b/66984396. Use SKIP_SHARED_LIBRARY_CHECK for the context 398 // (instead of dexUseInfo.getClassLoaderContext()) in order to compile secondary dex files 399 // in isolation (and avoid to extract/verify the main apk if it's in the class path). 400 // Note this trades correctness for performance since the resulting slow down is 401 // unacceptable in some cases until b/64530081 is fixed. 402 String classLoaderContext = SKIP_SHARED_LIBRARY_CHECK; 403 int reason = options.getCompilationReason(); 404 try { 405 for (String isa : dexUseInfo.getLoaderIsas()) { 406 // Reuse the same dexopt path as for the primary apks. We don't need all the 407 // arguments as some (dexopNeeded and oatDir) will be computed by installd because 408 // system server cannot read untrusted app content. 409 // TODO(calin): maybe add a separate call. 410 mInstaller.dexopt(path, info.uid, info.packageName, isa, /*dexoptNeeded*/ 0, 411 /*oatDir*/ null, dexoptFlags, 412 compilerFilter, info.volumeUuid, classLoaderContext, info.seInfoUser, 413 options.isDowngrade(), info.targetSdkVersion, /*profileName*/ null, 414 /*dexMetadataPath*/ null, getReasonName(reason)); 415 } 416 417 return DEX_OPT_PERFORMED; 418 } catch (InstallerException e) { 419 Slog.w(TAG, "Failed to dexopt", e); 420 return DEX_OPT_FAILED; 421 } 422 } 423 424 /** 425 * Adjust the given dexopt-needed value. Can be overridden to influence the decision to 426 * optimize or not (and in what way). 427 */ 428 protected int adjustDexoptNeeded(int dexoptNeeded) { 429 return dexoptNeeded; 430 } 431 432 /** 433 * Adjust the given dexopt flags that will be passed to the installer. 434 */ 435 protected int adjustDexoptFlags(int dexoptFlags) { 436 return dexoptFlags; 437 } 438 439 /** 440 * Dumps the dexopt state of the given package {@code pkg} to the given {@code PrintWriter}. 441 */ 442 void dumpDexoptState(IndentingPrintWriter pw, PackageParser.Package pkg, 443 PackageDexUsage.PackageUseInfo useInfo) { 444 final String[] instructionSets = getAppDexInstructionSets(pkg.applicationInfo); 445 final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets); 446 447 final List<String> paths = pkg.getAllCodePathsExcludingResourceOnly(); 448 449 for (String path : paths) { 450 pw.println("path: " + path); 451 pw.increaseIndent(); 452 453 for (String isa : dexCodeInstructionSets) { 454 String status = null; 455 try { 456 status = DexFile.getDexFileStatus(path, isa); 457 } catch (IOException ioe) { 458 status = "[Exception]: " + ioe.getMessage(); 459 } 460 pw.println(isa + ": " + status); 461 } 462 463 if (useInfo.isUsedByOtherApps(path)) { 464 pw.println("used by other apps: " + useInfo.getLoadingPackages(path)); 465 } 466 467 Map<String, PackageDexUsage.DexUseInfo> dexUseInfoMap = useInfo.getDexUseInfoMap(); 468 469 if (!dexUseInfoMap.isEmpty()) { 470 pw.println("known secondary dex files:"); 471 pw.increaseIndent(); 472 for (Map.Entry<String, PackageDexUsage.DexUseInfo> e : dexUseInfoMap.entrySet()) { 473 String dex = e.getKey(); 474 PackageDexUsage.DexUseInfo dexUseInfo = e.getValue(); 475 pw.println(dex); 476 pw.increaseIndent(); 477 // TODO(calin): get the status of the oat file (needs installd call) 478 pw.println("class loader context: " + dexUseInfo.getClassLoaderContext()); 479 if (dexUseInfo.isUsedByOtherApps()) { 480 pw.println("used by other apps: " + dexUseInfo.getLoadingPackages()); 481 } 482 pw.decreaseIndent(); 483 } 484 pw.decreaseIndent(); 485 } 486 pw.decreaseIndent(); 487 } 488 } 489 490 /** 491 * Returns the compiler filter that should be used to optimize the package code. 492 * The target filter will be updated if the package code is used by other apps 493 * or if it has the safe mode flag set. 494 */ 495 private String getRealCompilerFilter(ApplicationInfo info, String targetCompilerFilter, 496 boolean isUsedByOtherApps) { 497 int flags = info.flags; 498 boolean vmSafeMode = (flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0; 499 if (vmSafeMode) { 500 return getSafeModeCompilerFilter(targetCompilerFilter); 501 } 502 503 if (isProfileGuidedCompilerFilter(targetCompilerFilter) && isUsedByOtherApps) { 504 // If the dex files is used by other apps, apply the shared filter. 505 return PackageManagerServiceCompilerMapping.getCompilerFilterForReason( 506 PackageManagerService.REASON_SHARED); 507 } 508 509 return targetCompilerFilter; 510 } 511 512 /** 513 * Computes the dex flags that needs to be pass to installd for the given package and compiler 514 * filter. 515 */ 516 private int getDexFlags(PackageParser.Package pkg, String compilerFilter, 517 DexoptOptions options) { 518 return getDexFlags(pkg.applicationInfo, compilerFilter, options); 519 } 520 521 private int getDexFlags(ApplicationInfo info, String compilerFilter, DexoptOptions options) { 522 int flags = info.flags; 523 boolean debuggable = (flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0; 524 // Profile guide compiled oat files should not be public unles they are based 525 // on profiles from dex metadata archives. 526 // The flag isDexoptInstallWithDexMetadata applies only on installs when we know that 527 // the user does not have an existing profile. 528 boolean isProfileGuidedFilter = isProfileGuidedCompilerFilter(compilerFilter); 529 boolean isPublic = !info.isForwardLocked() && 530 (!isProfileGuidedFilter || options.isDexoptInstallWithDexMetadata()); 531 int profileFlag = isProfileGuidedFilter ? DEXOPT_PROFILE_GUIDED : 0; 532 // Some apps are executed with restrictions on hidden API usage. If this app is one 533 // of them, pass a flag to dexopt to enable the same restrictions during compilation. 534 int hiddenApiFlag = info.isAllowedToUseHiddenApi() ? 0 : DEXOPT_ENABLE_HIDDEN_API_CHECKS; 535 int dexFlags = 536 (isPublic ? DEXOPT_PUBLIC : 0) 537 | (debuggable ? DEXOPT_DEBUGGABLE : 0) 538 | profileFlag 539 | (options.isBootComplete() ? DEXOPT_BOOTCOMPLETE : 0) 540 | (options.isDexoptIdleBackgroundJob() ? DEXOPT_IDLE_BACKGROUND_JOB : 0) 541 | hiddenApiFlag; 542 return adjustDexoptFlags(dexFlags); 543 } 544 545 /** 546 * Assesses if there's a need to perform dexopt on {@code path} for the given 547 * configuration (isa, compiler filter, profile). 548 */ 549 private int getDexoptNeeded(String path, String isa, String compilerFilter, 550 String classLoaderContext, boolean newProfile, boolean downgrade) { 551 int dexoptNeeded; 552 try { 553 dexoptNeeded = DexFile.getDexOptNeeded(path, isa, compilerFilter, classLoaderContext, 554 newProfile, downgrade); 555 } catch (IOException ioe) { 556 Slog.w(TAG, "IOException reading apk: " + path, ioe); 557 return DEX_OPT_FAILED; 558 } 559 return adjustDexoptNeeded(dexoptNeeded); 560 } 561 562 /** 563 * Checks if there is an update on the profile information of the {@code pkg}. 564 * If the compiler filter is not profile guided the method returns false. 565 * 566 * Note that this is a "destructive" operation with side effects. Under the hood the 567 * current profile and the reference profile will be merged and subsequent calls 568 * may return a different result. 569 */ 570 private boolean isProfileUpdated(PackageParser.Package pkg, int uid, String profileName, 571 String compilerFilter) { 572 // Check if we are allowed to merge and if the compiler filter is profile guided. 573 if (!isProfileGuidedCompilerFilter(compilerFilter)) { 574 return false; 575 } 576 // Merge profiles. It returns whether or not there was an updated in the profile info. 577 try { 578 return mInstaller.mergeProfiles(uid, pkg.packageName, profileName); 579 } catch (InstallerException e) { 580 Slog.w(TAG, "Failed to merge profiles", e); 581 } 582 return false; 583 } 584 585 /** 586 * Creates oat dir for the specified package if needed and supported. 587 * In certain cases oat directory 588 * <strong>cannot</strong> be created: 589 * <ul> 590 * <li>{@code pkg} is a system app, which is not updated.</li> 591 * <li>Package location is not a directory, i.e. monolithic install.</li> 592 * </ul> 593 * 594 * @return Absolute path to the oat directory or null, if oat directory 595 * cannot be created. 596 */ 597 @Nullable 598 private String createOatDirIfSupported(PackageParser.Package pkg, String dexInstructionSet) { 599 if (!pkg.canHaveOatDir()) { 600 return null; 601 } 602 File codePath = new File(pkg.codePath); 603 if (codePath.isDirectory()) { 604 // TODO(calin): why do we create this only if the codePath is a directory? (i.e for 605 // cluster packages). It seems that the logic for the folder creation is 606 // split between installd and here. 607 File oatDir = getOatDir(codePath); 608 try { 609 mInstaller.createOatDir(oatDir.getAbsolutePath(), dexInstructionSet); 610 } catch (InstallerException e) { 611 Slog.w(TAG, "Failed to create oat dir", e); 612 return null; 613 } 614 return oatDir.getAbsolutePath(); 615 } 616 return null; 617 } 618 619 static File getOatDir(File codePath) { 620 return new File(codePath, OAT_DIR_NAME); 621 } 622 623 void systemReady() { 624 mSystemReady = true; 625 } 626 627 private String printDexoptFlags(int flags) { 628 ArrayList<String> flagsList = new ArrayList<>(); 629 630 if ((flags & DEXOPT_BOOTCOMPLETE) == DEXOPT_BOOTCOMPLETE) { 631 flagsList.add("boot_complete"); 632 } 633 if ((flags & DEXOPT_DEBUGGABLE) == DEXOPT_DEBUGGABLE) { 634 flagsList.add("debuggable"); 635 } 636 if ((flags & DEXOPT_PROFILE_GUIDED) == DEXOPT_PROFILE_GUIDED) { 637 flagsList.add("profile_guided"); 638 } 639 if ((flags & DEXOPT_PUBLIC) == DEXOPT_PUBLIC) { 640 flagsList.add("public"); 641 } 642 if ((flags & DEXOPT_SECONDARY_DEX) == DEXOPT_SECONDARY_DEX) { 643 flagsList.add("secondary"); 644 } 645 if ((flags & DEXOPT_FORCE) == DEXOPT_FORCE) { 646 flagsList.add("force"); 647 } 648 if ((flags & DEXOPT_STORAGE_CE) == DEXOPT_STORAGE_CE) { 649 flagsList.add("storage_ce"); 650 } 651 if ((flags & DEXOPT_STORAGE_DE) == DEXOPT_STORAGE_DE) { 652 flagsList.add("storage_de"); 653 } 654 if ((flags & DEXOPT_IDLE_BACKGROUND_JOB) == DEXOPT_IDLE_BACKGROUND_JOB) { 655 flagsList.add("idle_background_job"); 656 } 657 if ((flags & DEXOPT_ENABLE_HIDDEN_API_CHECKS) == DEXOPT_ENABLE_HIDDEN_API_CHECKS) { 658 flagsList.add("enable_hidden_api_checks"); 659 } 660 661 return String.join(",", flagsList); 662 } 663 664 /** 665 * A specialized PackageDexOptimizer that overrides already-installed checks, forcing a 666 * dexopt path. 667 */ 668 public static class ForcedUpdatePackageDexOptimizer extends PackageDexOptimizer { 669 670 public ForcedUpdatePackageDexOptimizer(Installer installer, Object installLock, 671 Context context, String wakeLockTag) { 672 super(installer, installLock, context, wakeLockTag); 673 } 674 675 public ForcedUpdatePackageDexOptimizer(PackageDexOptimizer from) { 676 super(from); 677 } 678 679 @Override 680 protected int adjustDexoptNeeded(int dexoptNeeded) { 681 if (dexoptNeeded == DexFile.NO_DEXOPT_NEEDED) { 682 // Ensure compilation by pretending a compiler filter change on the 683 // apk/odex location (the reason for the '-'. A positive value means 684 // the 'oat' location). 685 return -DexFile.DEX2OAT_FOR_FILTER; 686 } 687 return dexoptNeeded; 688 } 689 690 @Override 691 protected int adjustDexoptFlags(int flags) { 692 // Add DEXOPT_FORCE flag to signal installd that it should force compilation 693 // and discard dexoptanalyzer result. 694 return flags | DEXOPT_FORCE; 695 } 696 } 697} 698