12-13 12:25:05.595 3253 3253 SystemServer !@Boot: Start PackageManagerService pm/PackageManagerService.java public PackageManagerService(Context context, Installer installer, boolean factoryTest, boolean onlyCore) PMS的構造函數中 ① mSettings 初始化，發現 packages.list 找不到 報出以上的log mSettings = new Settings(context); //因為data分區 被Security的加密feature卸載，所以data下面的文件全都找不到 12-13 12:25:05.625 3253 3253 SELinuxMMAC Error opening /data/system/seapp_hash. Assuming first boot. 12-13 12:25:05.640 3253 3253 FileUtils Failed to chmod(/data/system/packages.list): android.system.ErrnoException: chmod failed: ENOENT (No such file or directory) ② SystemConfig systemConfig = SystemConfig.getInstance(); mGlobalGids = systemConfig.getGlobalGids(); mSystemPermissions = systemConfig.getSystemPermissions(); mAvailableFeatures = systemConfig.getAvailableFeatures(); packages.xml在data目錄下，所以也找不到 12-13 12:25:05.650 3253 3253 SystemConfig No directory /system/etc/sysconfig, skipping 12-13 12:25:05.940 3253 3253 SystemConfig Got execption parsing permissions. org.xmlpull.v1.XmlPullParserException: No start tag found at com.android.server.SystemConfig.readPermissionsFromXml(SystemConfig.java:193) at com.android.server.SystemConfig.readPermissions(SystemConfig.java:164) at com.android.server.SystemConfig.<init>(SystemConfig.java:126) at com.android.server.SystemConfig.getInstance(SystemConfig.java:87) at com.android.server.pm.PackageManagerService.<init>(PackageManagerService.java:1937) at com.android.server.pm.PackageManagerService.main(PackageManagerService.java:1825) at com.android.server.SystemServer.startBootstrapServices(SystemServer.java:514) at com.android.server.SystemServer.run(SystemServer.java:412) at com.android.server.SystemServer.main(SystemServer.java:313) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1389) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1184) 12-13 12:25:06.060 3253 3253 Revision File not found at: /data/security/sepolicy 12-13 12:25:06.060 3253 3253 Revision File not found at: /data/security/spota/sepolicy_version 12-13 12:25:06.065 3253 3253 xxxxxxsetupresourcelist entered setup resource list in selinuxmmac 12-13 12:25:06.065 3253 3253 SELinuxMMAC Read and parse file: /system/etc/security/mac_permissions.xml 12-13 12:25:06.665 3253 3253 SELinuxMMAC Read and parse file: /data/security/good/mac_permissions.xml 12-13 12:25:06.665 3253 3253 SELinuxMMAC File not found exception: /data/security/good/mac_permissions.xml 12-13 12:25:06.665 3253 3253 SELinuxMMAC Read and parse file: /data/security/mycontainer/mac_permissions.xml 12-13 12:25:06.665 3253 3253 SELinuxMMAC File not found exception: /data/security/mycontainer/mac_permissions.xml 12-13 12:25:06.665 3253 3253 SELinuxMMAC Read and parse file: /data/security/whitelist/mac_permissions.xml 12-13 12:25:06.665 3253 3253 SELinuxMMAC File not found exception: /data/security/whitelist/mac_permissions.xml mInstaller = installer; mHandlerThread = new ServiceThread(TAG, Process.THREAD_PRIORITY_BACKGROUND, true /*allowIo*/); // Process.THREAD_PRIORITY_BACKGROUND) 設置線程優先級為后台，這樣當多個線程並發后很多無關緊要的線程分配的CPU時間將會減少，有利於主線程的處理 mHandlerThread.start(); mHandler = new PackageHandler(mHandlerThread.getLooper()); 用一個后台線程來處理安裝請求 Watchdog.getInstance().addThread(mHandler, WATCHDOG_TIMEOUT); File dataDir = Environment.getDataDirectory(); mAppDataDir = new File(dataDir, "data"); mAppInstallDir = new File(dataDir, "app"); mAppLib32InstallDir = new File(dataDir, "app-lib"); mAsecInternalPath = new File(dataDir, "app-asec").getPath(); mUserAppDataDir = new File(dataDir, "user"); mDrmAppPrivateInstallDir = new File(dataDir, "app-private"); ArrayMap<String, SystemConfig.PermissionEntry> permConfig = systemConfig.getPermissions(); //權限管理配置相關 ArrayMap<String, String> libConfig = systemConfig.getSharedLibraries(); //共享庫配置 相關 ③ mFoundPolicyFile = SELinuxMMAC.readInstallPolicy(); //scan SELinux install policy耗時 mRestoredSettings = mSettings.readLPw(this, sUserManager.getUsers(false), mSdkVersion, mOnlyCore); //pm/Settings.java readLPw的時候發現data目錄下的 packages.xml 找不到了，重建一個，同時return false mRestoredSettings =false， 則被認為是第一次燒機，或者重置。 所以：First Boot Or Factory Reset : I9502ZNUHNL2 12-13 12:25:06.670 3253 3253 PackageManager Time to scan SELinux install policy: 0.612 seconds 12-13 12:25:06.670 3253 3253 PackageManager No settings file; creating initial state 12-13 12:25:06.675 3253 3253 PackageManager First Boot Or Factory Reset : I9502ZNUHNL2 String customResolverActivity = Resources.getSystem().getString( R.string.config_customResolverActivity); if (TextUtils.isEmpty(customResolverActivity)) { customResolverActivity = null; } else { mCustomResolverComponentName = ComponentName.unflattenFromString(customResolverActivity); } 使用客戶化的 customResolverActivity 來替代系統原有的，如果沒有客戶化的，就調用系統原有的 "/data/system/.aasa/managedpackages.xml"; AASA_readXml(); EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SYSTEM_SCAN_START, startTime); //系統掃描開始，打出掃描開始時間 final int scanFlags = SCAN_NO_PATHS | SCAN_DEFER_DEX | SCAN_BOOTING; //設定掃描的flag final HashSet<String> alreadyDexOpted = new HashSet<String>(); //保存 DexOpted已經解析過的 zygote 啟動的時候，如果必要的話，會運行dexopt。所以要將 boot class path 中的所有東西 都添加上 final String bootClassPath = System.getenv("BOOTCLASSPATH"); //Libcore.os.getenv(name); final String systemServerClassPath = System.getenv("SYSTEMSERVERCLASSPATH"); 在bootClassPath和systemServerClassPath 下的 默認 加入alreadyDexOpted。 ④ boolean didDexOptLibraryOrTool = false; //初始化，沒有運行過dexopt的庫或工具 final List<String> allInstructionSets = getAllInstructionSets(); //取得所有指令集 final String[] dexCodeInstructionSets = getDexCodeInstructionSets(allInstructionSets.toArray(new String[allInstructionSets.size()])); //所有指令集中，dexCode相關的指令集 if (mSharedLibraries.size() > 0) {...} //確保所有的external libraries 有dexopt運行過。 找到這個lib以后，將它加入alreadyDexOpted，並且調用 mInstaller.dexopt或mInstaller.patchoat 解析成可用的東西。 didDexOptLibraryOrTool = true; // NOTE: For now, we're compiling these system "shared libraries" // (and framework jars) into all available architectures. It's possible // to compile them only when we come across an app that uses them (there's // already logic for that in scanPackageLI) but that adds some complexity. 對象： "shared libraries" (and framework jars) 12-13 12:25:07.795 3253 3253 PackageManager Library not found: /system/framework/javax.btobex.jar 12-13 12:25:08.755 3253 3253 PackageManager Library not found: /system/framework/imsmanager-internal.jar File frameworkDir = new File(Environment.getRootDirectory(), "framework"); // 對system/framework目錄下的東西進行處理 framework-res.apk, twframework-res.apk, 不解析，因為不包含任何代碼 core-libart.jar , boot class path路徑下的，art使用的東西，已經處理過了，不處理了 String[] frameworkFiles = frameworkDir.list(); //在java中實現了許多命令，需要dexopt來解析 只處理 .apk 和 .jar 類型的文件, 如果有需要解析的 也會把 didDexOptLibraryOrTool設為true. ⑤ if (didDexOptLibraryOrTool || "1".equals(SystemProperties.get("sys.prune_dex_cache", "unknown"))) {...} //If we dexopted a library or tool, then something on the system has changed. 這部分本應該在boot classpath中做，但是由於 DexFile.isDexOptNeeded 對所有的boot classpath文件返回為false，所以我們要在這里做。 這部分是耗時最長的 12-13 12:25:12.480 3253 3253 PackageManager System has been changed!! : I9502ZNUHNL2 ⑥ File vendorOverlayDir = new File(VENDOR_OVERLAY_DIR); final File privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app"); vendorOverlayDir = "/vendor/overlay" frameworkDir = "/system/framework" privilegedAppDir = "/system/priv-app" carrierAppDir = "/carrier/itson/app" systemAppDir = "/system/app" vendorAppDir = "/vendor/app" oemAppDir = containerAppDir = "/system/container" 掃描以上目錄中存在的 packages, 然后交給scanDirLI()處理, scanDirLI() 具體做了哪些操作待定 12-13 12:25:12.505 3253 3253 PackageManager not yet prefetched, retry parse package: 12-13 12:25:21.315 3253 3253 PackageManager Permission android.permission.sec.MDM_ENTERPRISE_VPN_SOLUTION from package android ignored: no group null ...... 12-13 12:25:24.200 3253 3253 PackageManager not yet prefetched, retry parse package: 12-13 12:25:24.205 3253 3253 PackageManager Failed to parse /system/priv-app/LogsProvider: Not a coreApp: /system/priv-app/LogsProvider ...... 12-13 12:25:48.435 3253 3253 PackageManager not yet prefetched, retry parse package: 12-13 12:25:48.435 3253 3253 PackageManager Failed to parse /system/container/resources: Missing base APK in /system/container/resources Line 3774: 12-13 12:25:12.480 3566 3566 dex2oat dex2oat took 35.592ms (threads: 4) Line 3970: 12-13 12:25:48.490 3573 3573 dex2oat dex2oat took 23.313ms (threads: 4) //這個時間段沒有跑dex2oat, 所以需要仔細分析. scanDirLI(vendorOverlayDir, PackageParser.PARSE_IS_SYSTEM | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags | SCAN_TRUSTED_OVERLAY, 0); scanDirLI(frameworkDir, PackageParser.PARSE_IS_SYSTEM | PackageParser.PARSE_IS_SYSTEM_DIR | PackageParser.PARSE_IS_PRIVILEGED, scanFlags | SCAN_NO_DEX, 0); scanDirLI(privilegedAppDir, PackageParser.PARSE_IS_SYSTEM | PackageParser.PARSE_IS_SYSTEM_DIR | PackageParser.PARSE_IS_PRIVILEGED, scanFlags, 0); scanDirLI(carrierAppDir, PackageParser.PARSE_IS_SYSTEM | PackageParser.PARSE_IS_SYSTEM_DIR | PackageParser.PARSE_IS_PRIVILEGED, scanFlags, 0); //CSC控制 scanDirLI(systemAppDir, PackageParser.PARSE_IS_SYSTEM | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0); scanDirLI(vendorAppDir, PackageParser.PARSE_IS_SYSTEM | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0); scanDirLI(oemAppDir, PackageParser.PARSE_IS_SYSTEM | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0); scanDirLI(containerAppDir, PackageParser.PARSE_IS_SYSTEM | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0); if (DEBUG_UPGRADE) Log.v(TAG, "Running installd update commands"); mInstaller.moveFiles(); 修減 packages.xml 中保存的不再存在的 system packages。// Prune any system packages that no longer exist. mOnlyCore = onlyCore; // 參數傳入的。 if (!mOnlyCore) { Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator(); while (psit.hasNext()) { PackageSetting ps = psit.next(); !ApplicationInfo.FLAG_SYSTEM: 不是系統apk，略 if (mSettings.isDisabledSystemPackageLPr(ps.name)){ removePackageLI(ps, true); expectingBetter.put(ps.name, ps.codePath); 如果有 FLAG_SYSTEM, 並且在 disabled packages list 中，那么這個apk一定是通過OTA添加的。 將它從當前掃描中移除，然后先前user-installed的應用就會被掃描到。 加入到 expectingBetter 中。 } if (!mSettings.isDisabledSystemPackageLPr(ps.name)) { psit.remove(); removeDataDirsLI(ps.name); //added to remove package setting's deleted package information int ret = mSettings.removePackageLPw(ps); 如果有 FLAG_SYSTEM, 並且 不是disabled的系統apk, 從mSettings中移除. } else { final PackageSetting disabledPs = mSettings.getDisabledSystemPkgLPr(ps.name); if (disabledPs.codePath == null || !disabledPs.codePath.exists()) { possiblyDeletedUpdatedSystemApps.add(ps.name); } mSettings中已經標識的 disabled 的系統apk, 放到 possiblyDeletedUpdatedSystemApps 中。 } //look for any incomplete package installations. 查找所有安裝 不完全 的package cleanupInstallFailedPackage(deletePkgsList.get(i)); //清除掉安裝失敗的 package deleteTempPackageFiles(); //刪除臨時文件 mSettings.pruneSharedUsersLPw(); //移除掉所有 和 shared userIDs 無關的 packages if (!mOnlyCore) { EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_DATA_SCAN_START, SystemClock.uptimeMillis()); //開始掃描data目錄 scanDirLI(mAppInstallDir, 0, scanFlags, 0); //掃描app安裝目錄 data/app scanDirLI(mDrmAppPrivateInstallDir, PackageParser.PARSE_FORWARD_LOCK, scanFlags, 0); //特權apk安裝目錄 data/app-private Remove disable package settings for any updated system apps that were removed via an OTA. If they're not a previously-updated app, remove them completely. Otherwise, just revoke their system-level permissions. for (String deletedAppName : possiblyDeletedUpdatedSystemApps) { PackageParser.Package deletedPkg = mPackages.get(deletedAppName); mSettings.removeDisabledSystemPackageLPw(deletedAppName); //mSettings中移除 disable掉的 系統apk if (deletedPkg == null) { //被更新的系統apk已經不再存在。 removeDataDirsLI(deletedAppName); // 擦出它的數據目錄， PackageSetting deletedPs = mSettings.mPackages.get(deletedAppName); int ret = mSettings.removePackageLPw(deletedPs); // 移除掉mSetting中的該apk的信息 } else { //被更新的系統apk已經不再出現，移除它的系統特權 deletedPkg.applicationInfo.flags &= ~ApplicationInfo.FLAG_SYSTEM; PackageSetting deletedPs = mSettings.mPackages.get(deletedAppName); deletedPs.pkgFlags &= ~ApplicationInfo.FLAG_SYSTEM; }// end if-else }// end for }// end if (!mOnlyCore) /** * Make sure all system apps that we expected to appear on * the userdata partition actually showed up. If they never * appeared, crawl back and revive the system version. */確保所有的我們期望顯示的apk都被顯示出來了。如果它們從來沒有顯示過，將他們回復到系統版本 for (int i = 0; i < expectingBetter.size(); i++) { final String packageName = expectingBetter.keyAt(i); if (!mPackages.containsKey(packageName)) { privilegedAppDir, systemAppDir, vendorAppDir, oemAppDir, mSettings.enableSystemPackageLPw(packageName); scanPackageLI(scanFile, reparseFlags, scanFlags, 0, null); } } //end for ⑥ // Now that we know all of the shared libraries, update all clients to have the correct library paths. updateAllSharedLibrariesLPw(); //我們知道了所有的共享庫路徑，更新所有的客戶 使用正確的library paths. 12-13 12:25:48.440 3253 3253 PackageManager Package com.android.server.telecom desires unavailable shared library commonimsinterface; ignoring! 12-13 12:25:48.440 3253 3253 PackageManager Package com.android.settings desires unavailable shared library com.google.android.maps; ignoring! 12-13 12:25:48.440 3253 3253 PackageManager Package com.android.settings desires unavailable shared library TmoWfcUtils; ignoring! 12-13 12:25:48.440 3253 3253 PackageManager Package com.android.settings desires unavailable shared library commonimsinterface; ignoring! 12-13 12:25:48.440 3253 3253 PackageManager Package com.android.systemui desires unavailable shared library TmoWfcUtils; ignoring! 12-13 12:25:48.440 3253 3253 PackageManager Package com.android.phone desires unavailable shared library commonimsinterface; ignoring! 12-13 12:25:48.440 3253 3253 PackageManager Package com.android.phone desires unavailable shared library TmoWfcUtils; ignoring! 12-13 12:25:48.440 3253 3253 PackageManager Package com.android.incallui desires unavailable shared library commonimsinterface; ignoring! 12-13 12:25:48.440 3253 3253 PackageManager Package com.android.incallui desires unavailable shared library com.sec.imslibrary; ignoring! 12-13 12:25:48.440 3253 3253 PackageManager Package com.android.incallui desires unavailable shared library TmoWfcUtils; ignoring! 12-13 12:25:48.445 3253 3253 PackageManager updateAllSharedLibrariesLPw failed: Package android requires unavailable shared library com.ipsec.client; failing! ⑦ for (SharedUserSetting setting : mSettings.getAllSharedUsersLPw()) { // NOTE: We ignore potential failures here during a system scan (like the rest of the commands above) because there's precious little we can do about it. A settings error is reported, though. //我們忽視了 系統掃描（像其余的命令以上）的潛在故障 因為沒有多少我們可以做的事。盡管報出了設置錯誤。 adjustCpuAbisForSharedUserLPw(setting.packages, null /* scanned package */, false /* force dexopt */, false /* defer dexopt */); } 12-13 12:25:48.445 3253 3253 PackageManager ps : PackageSetting{1b14ab05 com.samsung.inputmethod/1000} instructionSet : arm 12-13 12:25:48.445 3253 3253 PackageManager ps : PackageSetting{2419cbb7 android/1000} instructionSet : arm 12-13 12:25:48.445 3253 3253 PackageManager Adjusting ABI for : com.sec.knox.switcher to armeabi-v7a 12-13 12:25:48.445 3253 3253 PackageManager Running dexopt on: /system/container/KnoxSwitcher/KnoxSwitcher.apk pkg=com.sec.knox.switcher isa=arm vmSafeMode=false interpret_only=false 12-13 12:25:48.500 3253 3253 PackageManager do mInstaller.dexopt : 0 12-13 12:25:48.500 3253 3253 PackageManager Time to dexopt: 0.056 seconds 12-13 12:25:48.500 3253 3253 PackageManager remove mDeferredDexOpt : Package{15cbec8c com.sec.knox.switcher} 12-13 12:25:48.500 3253 3253 PackageManager Skipping remove dex(arm) for : com.sec.knox.switcher ...... 12-13 12:25:48.815 3253 3253 PackageManager Adjusting ABI for : com.android.settings to armeabi-v7a 12-13 12:25:48.815 3253 3253 PackageManager Running dexopt on: /system/priv-app/SecSettings/SecSettings.apk pkg=com.android.settings isa=arm vmSafeMode=false interpret_only=false 12-13 12:25:50.345 3253 3253 PackageManager do mInstaller.dexopt : 0 12-13 12:25:50.345 3253 3253 PackageManager Time to dexopt: 1.533 seconds 12-13 12:25:50.345 3253 3253 PackageManager remove mDeferredDexOpt : Package{2b0db67f com.android.settings} 12-13 12:25:50.345 3253 3253 PackageManager Skipping remove dex(arm) for : com.android.settings mSettings.getAllSharedUsersLPw() ⑧ mPackageUsage.readLP(); //我們知道了所有的package，讀取並更新它們的 上次使用時間 readLP() 調用了convertUsageHistory(); EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SCAN_END, SystemClock.uptimeMillis()); //PMS掃描結束。 Slog.i(TAG, "Time to scan packages: " + ((SystemClock.uptimeMillis()-startTime)/1000f) + " seconds"); //掃描PMS一共耗時 12-13 12:25:50.350 3253 3253 PackageManager Error reading history stats: java.io.FileNotFoundException: /data/system/usage-history.xml: open failed: ENOENT (No such file or directory) 12-13 12:25:50.350 3253 3253 PackageManager Time to scan packages: 43.669 seconds // If the platform SDK has changed since the last time we booted, // we need to re-grant app permission to catch any new ones that // appear. This is really a hack, and means that apps can in some // cases get permissions that the user didn't initially explicitly // allow... it would be nice to have some better way to handle // this situation. 如果 自上次啟動以來，平台SDK版本有了變化， 那么我們需要對app重新授權。 這意味着，app可能會獲取到剛開始安裝時 用戶沒有授予的權限... 應該找一個更好的方法來處理這種情況 Slog.i(TAG, "Platform changed from " + mSettings.mInternalSdkPlatform + " to " + mSdkVersion + "; regranting permissions for internal storage"); mSettings.mInternalSdkPlatform = mSdkVersion; updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL | (regrantPermissions ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL) : 0)); updatePermissionsLPw() -> grantPermissionsLPw() 12-13 12:25:50.390 3253 3253 PackageManager Unknown permission com.sec.factory.permission.ALLOWFTCLIENTCPOBIND in package com.sec.phone 12-13 12:25:50.390 3253 3253 PackageManager Unknown permission com.samsungtest.SlateTest.SLATE_DM_CMD in package com.sec.phone 12-13 12:25:50.390 3253 3253 PackageManager Unknown permission com.samsung.InputEventApp.permission.UTS_DM_CMD in package com.sec.phone 12-13 12:25:50.390 3253 3253 PackageManager Unknown permission com.sec.android.app.InputEventApp.permission.KEYSTRING in package com.sec.phone // If this is the first boot, and it is a normal boot, then we need to initialize the default preferred apps. 如果這個第一次正常的啟動，我們需要初始化 默認app if (!mRestoredSettings && !onlyCore) { mSettings.readDefaultPreferredAppsLPw(this, 0); } // If this is first boot after an OTA, and a normal boot, then we need to clear code cache directories. 如果這個OTA以后的第一次正常啟動，我們需要清除代碼緩存目錄 if (!Build.FINGERPRINT.equals(mSettings.mFingerprint) && !onlyCore) { Slog.i(TAG, "Build fingerprint changed; clearing code caches"); for (String pkgName : mSettings.mPackages.keySet()) { deleteCodeCacheDirsLI(pkgName); } mSettings.mFingerprint = Build.FINGERPRINT; } mSettings.updateInternalDatabaseVersion(); //更新內置的數據庫版本 // can downgrade to reader mSettings.writeLPr(); // 可降級 EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_READY, SystemClock.uptimeMillis()); //PMS准備好了 // synchronized (mPackages) // synchronized (mInstallLock) // Now after opening every single application zip, make sure they are all flushed. // Not really needed, but keeps things nice and tidy. 現在打開每一個app的zip包以后，確保他們都已經被緩存好了。 不是真正的需要，但是 要保持一切已經被准備好了 Runtime.getRuntime().gc(); 12-13 12:25:50.555 3253 3253 SystemServer !@Boot: End PackageManagerService 12-13 12:25:50.555 3253 3253 SystemServer User Service 12-13 12:25:50.570 3253 3253 SystemServiceManager Starting com.android.server.lights.LightsService