PackageDexOptimizer.java revision ff3e4a1b2fb082e8146d00a41f702d0b00d9cab0
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.DexManager; 38import com.android.server.pm.dex.DexoptOptions; 39import com.android.server.pm.dex.DexoptUtils; 40import com.android.server.pm.dex.PackageDexUsage; 41 42import java.io.File; 43import java.io.IOException; 44import java.util.ArrayList; 45import java.util.Arrays; 46import java.util.List; 47import java.util.Map; 48 49import dalvik.system.DexFile; 50 51import static com.android.server.pm.Installer.DEXOPT_BOOTCOMPLETE; 52import static com.android.server.pm.Installer.DEXOPT_DEBUGGABLE; 53import static com.android.server.pm.Installer.DEXOPT_PROFILE_GUIDED; 54import static com.android.server.pm.Installer.DEXOPT_PUBLIC; 55import static com.android.server.pm.Installer.DEXOPT_SECONDARY_DEX; 56import static com.android.server.pm.Installer.DEXOPT_FORCE; 57import static com.android.server.pm.Installer.DEXOPT_STORAGE_CE; 58import static com.android.server.pm.Installer.DEXOPT_STORAGE_DE; 59import static com.android.server.pm.Installer.DEXOPT_IDLE_BACKGROUND_JOB; 60import static com.android.server.pm.Installer.DEXOPT_DISABLE_HIDDEN_API_CHECKS; 61import static com.android.server.pm.InstructionSets.getAppDexInstructionSets; 62import static com.android.server.pm.InstructionSets.getDexCodeInstructionSets; 63 64import static com.android.server.pm.PackageManagerService.WATCHDOG_TIMEOUT; 65 66import static dalvik.system.DexFile.getNonProfileGuidedCompilerFilter; 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 return true; 117 } 118 119 /** 120 * Performs dexopt on all code paths and libraries of the specified package for specified 121 * instruction sets. 122 * 123 * <p>Calls to {@link com.android.server.pm.Installer#dexopt} on {@link #mInstaller} are 124 * synchronized on {@link #mInstallLock}. 125 */ 126 int performDexOpt(PackageParser.Package pkg, String[] sharedLibraries, 127 String[] instructionSets, CompilerStats.PackageStats packageStats, 128 PackageDexUsage.PackageUseInfo packageUseInfo, DexoptOptions options) { 129 if (pkg.applicationInfo.uid == -1) { 130 throw new IllegalArgumentException("Dexopt for " + pkg.packageName 131 + " has invalid uid."); 132 } 133 if (!canOptimizePackage(pkg)) { 134 return DEX_OPT_SKIPPED; 135 } 136 synchronized (mInstallLock) { 137 final long acquireTime = acquireWakeLockLI(pkg.applicationInfo.uid); 138 try { 139 return performDexOptLI(pkg, sharedLibraries, instructionSets, 140 packageStats, packageUseInfo, options); 141 } finally { 142 releaseWakeLockLI(acquireTime); 143 } 144 } 145 } 146 147 /** 148 * Performs dexopt on all code paths of the given package. 149 * It assumes the install lock is held. 150 */ 151 @GuardedBy("mInstallLock") 152 private int performDexOptLI(PackageParser.Package pkg, String[] sharedLibraries, 153 String[] targetInstructionSets, CompilerStats.PackageStats packageStats, 154 PackageDexUsage.PackageUseInfo packageUseInfo, DexoptOptions options) { 155 final String[] instructionSets = targetInstructionSets != null ? 156 targetInstructionSets : getAppDexInstructionSets(pkg.applicationInfo); 157 final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets); 158 final List<String> paths = pkg.getAllCodePaths(); 159 160 int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid); 161 if (sharedGid == -1) { 162 Slog.wtf(TAG, "Well this is awkward; package " + pkg.applicationInfo.name + " had UID " 163 + pkg.applicationInfo.uid, new Throwable()); 164 sharedGid = android.os.Process.NOBODY_UID; 165 } 166 167 // Get the class loader context dependencies. 168 // For each code path in the package, this array contains the class loader context that 169 // needs to be passed to dexopt in order to ensure correct optimizations. 170 boolean[] pathsWithCode = new boolean[paths.size()]; 171 pathsWithCode[0] = (pkg.applicationInfo.flags & ApplicationInfo.FLAG_HAS_CODE) != 0; 172 for (int i = 1; i < paths.size(); i++) { 173 pathsWithCode[i] = (pkg.splitFlags[i - 1] & ApplicationInfo.FLAG_HAS_CODE) != 0; 174 } 175 String[] classLoaderContexts = DexoptUtils.getClassLoaderContexts( 176 pkg.applicationInfo, sharedLibraries, pathsWithCode); 177 178 // Sanity check that we do not call dexopt with inconsistent data. 179 if (paths.size() != classLoaderContexts.length) { 180 String[] splitCodePaths = pkg.applicationInfo.getSplitCodePaths(); 181 throw new IllegalStateException("Inconsistent information " 182 + "between PackageParser.Package and its ApplicationInfo. " 183 + "pkg.getAllCodePaths=" + paths 184 + " pkg.applicationInfo.getBaseCodePath=" + pkg.applicationInfo.getBaseCodePath() 185 + " pkg.applicationInfo.getSplitCodePaths=" 186 + (splitCodePaths == null ? "null" : Arrays.toString(splitCodePaths))); 187 } 188 189 int result = DEX_OPT_SKIPPED; 190 for (int i = 0; i < paths.size(); i++) { 191 // Skip paths that have no code. 192 if (!pathsWithCode[i]) { 193 continue; 194 } 195 if (classLoaderContexts[i] == null) { 196 throw new IllegalStateException("Inconsistent information in the " 197 + "package structure. A split is marked to contain code " 198 + "but has no dependency listed. Index=" + i + " path=" + paths.get(i)); 199 } 200 201 // Append shared libraries with split dependencies for this split. 202 String path = paths.get(i); 203 if (options.getSplitName() != null) { 204 // We are asked to compile only a specific split. Check that the current path is 205 // what we are looking for. 206 if (!options.getSplitName().equals(new File(path).getName())) { 207 continue; 208 } 209 } 210 211 String profileName = ArtManager.getProfileName(i == 0 ? null : pkg.splitNames[i - 1]); 212 213 String dexMetadataPath = null; 214 if (options.isDexoptInstallWithDexMetadata()) { 215 File dexMetadataFile = DexMetadataHelper.findDexMetadataForFile(new File(path)); 216 dexMetadataPath = dexMetadataFile == null 217 ? null : dexMetadataFile.getAbsolutePath(); 218 } 219 220 final boolean isUsedByOtherApps = options.isDexoptAsSharedLibrary() 221 || packageUseInfo.isUsedByOtherApps(path); 222 final String compilerFilter = getRealCompilerFilter(pkg.applicationInfo, 223 options.getCompilerFilter(), isUsedByOtherApps); 224 final boolean profileUpdated = options.isCheckForProfileUpdates() && 225 isProfileUpdated(pkg, sharedGid, profileName, compilerFilter); 226 227 // Get the dexopt flags after getRealCompilerFilter to make sure we get the correct 228 // flags. 229 final int dexoptFlags = getDexFlags(pkg, compilerFilter, options); 230 231 for (String dexCodeIsa : dexCodeInstructionSets) { 232 int newResult = dexOptPath(pkg, path, dexCodeIsa, compilerFilter, 233 profileUpdated, classLoaderContexts[i], dexoptFlags, sharedGid, 234 packageStats, options.isDowngrade(), profileName, dexMetadataPath); 235 // The end result is: 236 // - FAILED if any path failed, 237 // - PERFORMED if at least one path needed compilation, 238 // - SKIPPED when all paths are up to date 239 if ((result != DEX_OPT_FAILED) && (newResult != DEX_OPT_SKIPPED)) { 240 result = newResult; 241 } 242 } 243 } 244 return result; 245 } 246 247 /** 248 * Performs dexopt on the {@code path} belonging to the package {@code pkg}. 249 * 250 * @return 251 * DEX_OPT_FAILED if there was any exception during dexopt 252 * DEX_OPT_PERFORMED if dexopt was performed successfully on the given path. 253 * DEX_OPT_SKIPPED if the path does not need to be deopt-ed. 254 */ 255 @GuardedBy("mInstallLock") 256 private int dexOptPath(PackageParser.Package pkg, String path, String isa, 257 String compilerFilter, boolean profileUpdated, String classLoaderContext, 258 int dexoptFlags, int uid, CompilerStats.PackageStats packageStats, boolean downgrade, 259 String profileName, String dexMetadataPath) { 260 int dexoptNeeded = getDexoptNeeded(path, isa, compilerFilter, classLoaderContext, 261 profileUpdated, downgrade); 262 if (Math.abs(dexoptNeeded) == DexFile.NO_DEXOPT_NEEDED) { 263 return DEX_OPT_SKIPPED; 264 } 265 266 // TODO(calin): there's no need to try to create the oat dir over and over again, 267 // especially since it involve an extra installd call. We should create 268 // if (if supported) on the fly during the dexopt call. 269 String oatDir = createOatDirIfSupported(pkg, isa); 270 271 Log.i(TAG, "Running dexopt (dexoptNeeded=" + dexoptNeeded + ") on: " + path 272 + " pkg=" + pkg.applicationInfo.packageName + " isa=" + isa 273 + " dexoptFlags=" + printDexoptFlags(dexoptFlags) 274 + " targetFilter=" + compilerFilter + " oatDir=" + oatDir 275 + " classLoaderContext=" + classLoaderContext); 276 277 try { 278 long startTime = System.currentTimeMillis(); 279 280 // TODO: Consider adding 2 different APIs for primary and secondary dexopt. 281 // installd only uses downgrade flag for secondary dex files and ignores it for 282 // primary dex files. 283 mInstaller.dexopt(path, uid, pkg.packageName, isa, dexoptNeeded, oatDir, dexoptFlags, 284 compilerFilter, pkg.volumeUuid, classLoaderContext, pkg.applicationInfo.seInfo, 285 false /* downgrade*/, pkg.applicationInfo.targetSdkVersion, 286 profileName, dexMetadataPath); 287 288 if (packageStats != null) { 289 long endTime = System.currentTimeMillis(); 290 packageStats.setCompileTime(path, (int)(endTime - startTime)); 291 } 292 return DEX_OPT_PERFORMED; 293 } catch (InstallerException e) { 294 Slog.w(TAG, "Failed to dexopt", e); 295 return DEX_OPT_FAILED; 296 } 297 } 298 299 /** 300 * Performs dexopt on the secondary dex {@code path} belonging to the app {@code info}. 301 * 302 * @return 303 * DEX_OPT_FAILED if there was any exception during dexopt 304 * DEX_OPT_PERFORMED if dexopt was performed successfully on the given path. 305 * NOTE that DEX_OPT_PERFORMED for secondary dex files includes the case when the dex file 306 * didn't need an update. That's because at the moment we don't get more than success/failure 307 * from installd. 308 * 309 * TODO(calin): Consider adding return codes to installd dexopt invocation (rather than 310 * throwing exceptions). Or maybe make a separate call to installd to get DexOptNeeded, though 311 * that seems wasteful. 312 */ 313 public int dexOptSecondaryDexPath(ApplicationInfo info, String path, 314 PackageDexUsage.DexUseInfo dexUseInfo, DexoptOptions options) { 315 if (info.uid == -1) { 316 throw new IllegalArgumentException("Dexopt for path " + path + " has invalid uid."); 317 } 318 synchronized (mInstallLock) { 319 final long acquireTime = acquireWakeLockLI(info.uid); 320 try { 321 return dexOptSecondaryDexPathLI(info, path, dexUseInfo, options); 322 } finally { 323 releaseWakeLockLI(acquireTime); 324 } 325 } 326 } 327 328 @GuardedBy("mInstallLock") 329 private long acquireWakeLockLI(final int uid) { 330 // During boot the system doesn't need to instantiate and obtain a wake lock. 331 // PowerManager might not be ready, but that doesn't mean that we can't proceed with 332 // dexopt. 333 if (!mSystemReady) { 334 return -1; 335 } 336 mDexoptWakeLock.setWorkSource(new WorkSource(uid)); 337 mDexoptWakeLock.acquire(WAKELOCK_TIMEOUT_MS); 338 return SystemClock.elapsedRealtime(); 339 } 340 341 @GuardedBy("mInstallLock") 342 private void releaseWakeLockLI(final long acquireTime) { 343 if (acquireTime < 0) { 344 return; 345 } 346 try { 347 if (mDexoptWakeLock.isHeld()) { 348 mDexoptWakeLock.release(); 349 } 350 final long duration = SystemClock.elapsedRealtime() - acquireTime; 351 if (duration >= WAKELOCK_TIMEOUT_MS) { 352 Slog.wtf(TAG, "WakeLock " + mDexoptWakeLock.getTag() 353 + " time out. Operation took " + duration + " ms. Thread: " 354 + Thread.currentThread().getName()); 355 } 356 } catch (Exception e) { 357 Slog.wtf(TAG, "Error while releasing " + mDexoptWakeLock.getTag() + " lock", e); 358 } 359 } 360 361 @GuardedBy("mInstallLock") 362 private int dexOptSecondaryDexPathLI(ApplicationInfo info, String path, 363 PackageDexUsage.DexUseInfo dexUseInfo, DexoptOptions options) { 364 if (options.isDexoptOnlySharedDex() && !dexUseInfo.isUsedByOtherApps()) { 365 // We are asked to optimize only the dex files used by other apps and this is not 366 // on of them: skip it. 367 return DEX_OPT_SKIPPED; 368 } 369 370 String compilerFilter = getRealCompilerFilter(info, options.getCompilerFilter(), 371 dexUseInfo.isUsedByOtherApps()); 372 // Get the dexopt flags after getRealCompilerFilter to make sure we get the correct flags. 373 // Secondary dex files are currently not compiled at boot. 374 int dexoptFlags = getDexFlags(info, compilerFilter, options) | DEXOPT_SECONDARY_DEX; 375 // Check the app storage and add the appropriate flags. 376 if (info.deviceProtectedDataDir != null && 377 FileUtils.contains(info.deviceProtectedDataDir, path)) { 378 dexoptFlags |= DEXOPT_STORAGE_DE; 379 } else if (info.credentialProtectedDataDir != null && 380 FileUtils.contains(info.credentialProtectedDataDir, path)) { 381 dexoptFlags |= DEXOPT_STORAGE_CE; 382 } else { 383 Slog.e(TAG, "Could not infer CE/DE storage for package " + info.packageName); 384 return DEX_OPT_FAILED; 385 } 386 Log.d(TAG, "Running dexopt on: " + path 387 + " pkg=" + info.packageName + " isa=" + dexUseInfo.getLoaderIsas() 388 + " dexoptFlags=" + printDexoptFlags(dexoptFlags) 389 + " target-filter=" + compilerFilter); 390 391 // TODO(calin): b/64530081 b/66984396. Use SKIP_SHARED_LIBRARY_CHECK for the context 392 // (instead of dexUseInfo.getClassLoaderContext()) in order to compile secondary dex files 393 // in isolation (and avoid to extract/verify the main apk if it's in the class path). 394 // Note this trades correctness for performance since the resulting slow down is 395 // unacceptable in some cases until b/64530081 is fixed. 396 String classLoaderContext = SKIP_SHARED_LIBRARY_CHECK; 397 398 try { 399 for (String isa : dexUseInfo.getLoaderIsas()) { 400 // Reuse the same dexopt path as for the primary apks. We don't need all the 401 // arguments as some (dexopNeeded and oatDir) will be computed by installd because 402 // system server cannot read untrusted app content. 403 // TODO(calin): maybe add a separate call. 404 mInstaller.dexopt(path, info.uid, info.packageName, isa, /*dexoptNeeded*/ 0, 405 /*oatDir*/ null, dexoptFlags, 406 compilerFilter, info.volumeUuid, classLoaderContext, info.seInfoUser, 407 options.isDowngrade(), info.targetSdkVersion, /*profileName*/ null, 408 /*dexMetadataPath*/ null); 409 } 410 411 return DEX_OPT_PERFORMED; 412 } catch (InstallerException e) { 413 Slog.w(TAG, "Failed to dexopt", e); 414 return DEX_OPT_FAILED; 415 } 416 } 417 418 /** 419 * Adjust the given dexopt-needed value. Can be overridden to influence the decision to 420 * optimize or not (and in what way). 421 */ 422 protected int adjustDexoptNeeded(int dexoptNeeded) { 423 return dexoptNeeded; 424 } 425 426 /** 427 * Adjust the given dexopt flags that will be passed to the installer. 428 */ 429 protected int adjustDexoptFlags(int dexoptFlags) { 430 return dexoptFlags; 431 } 432 433 /** 434 * Dumps the dexopt state of the given package {@code pkg} to the given {@code PrintWriter}. 435 */ 436 void dumpDexoptState(IndentingPrintWriter pw, PackageParser.Package pkg, 437 PackageDexUsage.PackageUseInfo useInfo) { 438 final String[] instructionSets = getAppDexInstructionSets(pkg.applicationInfo); 439 final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets); 440 441 final List<String> paths = pkg.getAllCodePathsExcludingResourceOnly(); 442 443 for (String path : paths) { 444 pw.println("path: " + path); 445 pw.increaseIndent(); 446 447 for (String isa : dexCodeInstructionSets) { 448 String status = null; 449 try { 450 status = DexFile.getDexFileStatus(path, isa); 451 } catch (IOException ioe) { 452 status = "[Exception]: " + ioe.getMessage(); 453 } 454 pw.println(isa + ": " + status); 455 } 456 457 if (useInfo.isUsedByOtherApps(path)) { 458 pw.println("used by other apps: " + useInfo.getLoadingPackages(path)); 459 } 460 461 Map<String, PackageDexUsage.DexUseInfo> dexUseInfoMap = useInfo.getDexUseInfoMap(); 462 463 if (!dexUseInfoMap.isEmpty()) { 464 pw.println("known secondary dex files:"); 465 pw.increaseIndent(); 466 for (Map.Entry<String, PackageDexUsage.DexUseInfo> e : dexUseInfoMap.entrySet()) { 467 String dex = e.getKey(); 468 PackageDexUsage.DexUseInfo dexUseInfo = e.getValue(); 469 pw.println(dex); 470 pw.increaseIndent(); 471 // TODO(calin): get the status of the oat file (needs installd call) 472 pw.println("class loader context: " + dexUseInfo.getClassLoaderContext()); 473 if (dexUseInfo.isUsedByOtherApps()) { 474 pw.println("used by other apps: " + dexUseInfo.getLoadingPackages()); 475 } 476 pw.decreaseIndent(); 477 } 478 pw.decreaseIndent(); 479 } 480 pw.decreaseIndent(); 481 } 482 } 483 484 /** 485 * Returns the compiler filter that should be used to optimize the package code. 486 * The target filter will be updated if the package code is used by other apps 487 * or if it has the safe mode flag set. 488 */ 489 private String getRealCompilerFilter(ApplicationInfo info, String targetCompilerFilter, 490 boolean isUsedByOtherApps) { 491 int flags = info.flags; 492 boolean vmSafeMode = (flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0; 493 // When pm.dexopt.priv-apps-oob is true, we only verify privileged apps. 494 if (info.isPrivilegedApp() && 495 SystemProperties.getBoolean("pm.dexopt.priv-apps-oob", false)) { 496 return "verify"; 497 } 498 if (vmSafeMode) { 499 return getSafeModeCompilerFilter(targetCompilerFilter); 500 } 501 502 if (isProfileGuidedCompilerFilter(targetCompilerFilter) && isUsedByOtherApps) { 503 // If the dex files is used by other apps, apply the shared filter. 504 return PackageManagerServiceCompilerMapping.getCompilerFilterForReason( 505 PackageManagerService.REASON_SHARED); 506 } 507 508 return targetCompilerFilter; 509 } 510 511 /** 512 * Computes the dex flags that needs to be pass to installd for the given package and compiler 513 * filter. 514 */ 515 private int getDexFlags(PackageParser.Package pkg, String compilerFilter, 516 DexoptOptions options) { 517 return getDexFlags(pkg.applicationInfo, compilerFilter, options); 518 } 519 520 private int getDexFlags(ApplicationInfo info, String compilerFilter, DexoptOptions options) { 521 int flags = info.flags; 522 boolean debuggable = (flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0; 523 // Profile guide compiled oat files should not be public unles they are based 524 // on profiles from dex metadata archives. 525 // The flag isDexoptInstallWithDexMetadata applies only on installs when we know that 526 // the user does not have an existing profile. 527 boolean isProfileGuidedFilter = isProfileGuidedCompilerFilter(compilerFilter); 528 boolean isPublic = !info.isForwardLocked() && 529 (!isProfileGuidedFilter || options.isDexoptInstallWithDexMetadata()); 530 int profileFlag = isProfileGuidedFilter ? DEXOPT_PROFILE_GUIDED : 0; 531 // System apps are invoked with a runtime flag which exempts them from 532 // restrictions on hidden API usage. We dexopt with the same runtime flag 533 // otherwise offending methods would have to be re-verified at runtime 534 // and we want to avoid the performance overhead of that. 535 int hiddenApiFlag = info.isAllowedToUseHiddenApi() ? DEXOPT_DISABLE_HIDDEN_API_CHECKS : 0; 536 int dexFlags = 537 (isPublic ? DEXOPT_PUBLIC : 0) 538 | (debuggable ? DEXOPT_DEBUGGABLE : 0) 539 | profileFlag 540 | (options.isBootComplete() ? DEXOPT_BOOTCOMPLETE : 0) 541 | (options.isDexoptIdleBackgroundJob() ? DEXOPT_IDLE_BACKGROUND_JOB : 0) 542 | hiddenApiFlag; 543 return adjustDexoptFlags(dexFlags); 544 } 545 546 /** 547 * Assesses if there's a need to perform dexopt on {@code path} for the given 548 * configuration (isa, compiler filter, profile). 549 */ 550 private int getDexoptNeeded(String path, String isa, String compilerFilter, 551 String classLoaderContext, boolean newProfile, boolean downgrade) { 552 int dexoptNeeded; 553 try { 554 dexoptNeeded = DexFile.getDexOptNeeded(path, isa, compilerFilter, classLoaderContext, 555 newProfile, downgrade); 556 } catch (IOException ioe) { 557 Slog.w(TAG, "IOException reading apk: " + path, ioe); 558 return DEX_OPT_FAILED; 559 } 560 return adjustDexoptNeeded(dexoptNeeded); 561 } 562 563 /** 564 * Checks if there is an update on the profile information of the {@code pkg}. 565 * If the compiler filter is not profile guided the method returns false. 566 * 567 * Note that this is a "destructive" operation with side effects. Under the hood the 568 * current profile and the reference profile will be merged and subsequent calls 569 * may return a different result. 570 */ 571 private boolean isProfileUpdated(PackageParser.Package pkg, int uid, String profileName, 572 String compilerFilter) { 573 // Check if we are allowed to merge and if the compiler filter is profile guided. 574 if (!isProfileGuidedCompilerFilter(compilerFilter)) { 575 return false; 576 } 577 // Merge profiles. It returns whether or not there was an updated in the profile info. 578 try { 579 return mInstaller.mergeProfiles(uid, pkg.packageName, profileName); 580 } catch (InstallerException e) { 581 Slog.w(TAG, "Failed to merge profiles", e); 582 } 583 return false; 584 } 585 586 /** 587 * Creates oat dir for the specified package if needed and supported. 588 * In certain cases oat directory 589 * <strong>cannot</strong> be created: 590 * <ul> 591 * <li>{@code pkg} is a system app, which is not updated.</li> 592 * <li>Package location is not a directory, i.e. monolithic install.</li> 593 * </ul> 594 * 595 * @return Absolute path to the oat directory or null, if oat directory 596 * cannot be created. 597 */ 598 @Nullable 599 private String createOatDirIfSupported(PackageParser.Package pkg, String dexInstructionSet) { 600 if (!pkg.canHaveOatDir()) { 601 return null; 602 } 603 File codePath = new File(pkg.codePath); 604 if (codePath.isDirectory()) { 605 // TODO(calin): why do we create this only if the codePath is a directory? (i.e for 606 // cluster packages). It seems that the logic for the folder creation is 607 // split between installd and here. 608 File oatDir = getOatDir(codePath); 609 try { 610 mInstaller.createOatDir(oatDir.getAbsolutePath(), dexInstructionSet); 611 } catch (InstallerException e) { 612 Slog.w(TAG, "Failed to create oat dir", e); 613 return null; 614 } 615 return oatDir.getAbsolutePath(); 616 } 617 return null; 618 } 619 620 static File getOatDir(File codePath) { 621 return new File(codePath, OAT_DIR_NAME); 622 } 623 624 void systemReady() { 625 mSystemReady = true; 626 } 627 628 private String printDexoptFlags(int flags) { 629 ArrayList<String> flagsList = new ArrayList<>(); 630 631 if ((flags & DEXOPT_BOOTCOMPLETE) == DEXOPT_BOOTCOMPLETE) { 632 flagsList.add("boot_complete"); 633 } 634 if ((flags & DEXOPT_DEBUGGABLE) == DEXOPT_DEBUGGABLE) { 635 flagsList.add("debuggable"); 636 } 637 if ((flags & DEXOPT_PROFILE_GUIDED) == DEXOPT_PROFILE_GUIDED) { 638 flagsList.add("profile_guided"); 639 } 640 if ((flags & DEXOPT_PUBLIC) == DEXOPT_PUBLIC) { 641 flagsList.add("public"); 642 } 643 if ((flags & DEXOPT_SECONDARY_DEX) == DEXOPT_SECONDARY_DEX) { 644 flagsList.add("secondary"); 645 } 646 if ((flags & DEXOPT_FORCE) == DEXOPT_FORCE) { 647 flagsList.add("force"); 648 } 649 if ((flags & DEXOPT_STORAGE_CE) == DEXOPT_STORAGE_CE) { 650 flagsList.add("storage_ce"); 651 } 652 if ((flags & DEXOPT_STORAGE_DE) == DEXOPT_STORAGE_DE) { 653 flagsList.add("storage_de"); 654 } 655 if ((flags & DEXOPT_IDLE_BACKGROUND_JOB) == DEXOPT_IDLE_BACKGROUND_JOB) { 656 flagsList.add("idle_background_job"); 657 } 658 if ((flags & DEXOPT_DISABLE_HIDDEN_API_CHECKS) == DEXOPT_DISABLE_HIDDEN_API_CHECKS) { 659 flagsList.add("disable_hidden_api_checks"); 660 } 661 662 return String.join(",", flagsList); 663 } 664 665 /** 666 * A specialized PackageDexOptimizer that overrides already-installed checks, forcing a 667 * dexopt path. 668 */ 669 public static class ForcedUpdatePackageDexOptimizer extends PackageDexOptimizer { 670 671 public ForcedUpdatePackageDexOptimizer(Installer installer, Object installLock, 672 Context context, String wakeLockTag) { 673 super(installer, installLock, context, wakeLockTag); 674 } 675 676 public ForcedUpdatePackageDexOptimizer(PackageDexOptimizer from) { 677 super(from); 678 } 679 680 @Override 681 protected int adjustDexoptNeeded(int dexoptNeeded) { 682 if (dexoptNeeded == DexFile.NO_DEXOPT_NEEDED) { 683 // Ensure compilation by pretending a compiler filter change on the 684 // apk/odex location (the reason for the '-'. A positive value means 685 // the 'oat' location). 686 return -DexFile.DEX2OAT_FOR_FILTER; 687 } 688 return dexoptNeeded; 689 } 690 691 @Override 692 protected int adjustDexoptFlags(int flags) { 693 // Add DEXOPT_FORCE flag to signal installd that it should force compilation 694 // and discard dexoptanalyzer result. 695 return flags | DEXOPT_FORCE; 696 } 697 } 698} 699