Refactor PackageDexOptimizer (bb10525a) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/pm/PackageDexOptimizer.java

+204 −114

Original line number	Diff line number	Diff line
		@@ -27,11 +27,13 @@ import android.os.WorkSource;
		import android.util.Log;
		import android.util.Slog;

		import com.android.internal.annotations.GuardedBy;
		import com.android.internal.util.IndentingPrintWriter;
		import com.android.server.pm.Installer.InstallerException;

		import java.io.File;
		import java.io.IOException;
		import java.util.ArrayList;
		import java.util.List;

		import dalvik.system.DexFile;
		@@ -43,7 +45,9 @@ import static com.android.server.pm.Installer.DEXOPT_PUBLIC;
		import static com.android.server.pm.Installer.DEXOPT_SAFEMODE;
		import static com.android.server.pm.InstructionSets.getAppDexInstructionSets;
		import static com.android.server.pm.InstructionSets.getDexCodeInstructionSets;

		import static com.android.server.pm.PackageManagerServiceCompilerMapping.getNonProfileGuidedCompilerFilter;
		import static dalvik.system.DexFile.isProfileGuidedCompilerFilter;

		/**
		* Helper class for running dexopt command on packages.
		@@ -92,6 +96,9 @@ class PackageDexOptimizer {
		int performDexOpt(PackageParser.Package pkg, String[] sharedLibraries,
		String[] instructionSets, boolean checkProfiles, String targetCompilationFilter,
		CompilerStats.PackageStats packageStats) {
		if (!canOptimizePackage(pkg)) {
		return DEX_OPT_SKIPPED;
		}
		synchronized (mInstallLock) {
		final boolean useLock = mSystemReady;
		if (useLock) {
		@@ -109,6 +116,90 @@ class PackageDexOptimizer {
		}
		}

		/**
		* Performs dexopt on all code paths of the given package.
		* It assumes the install lock is held.
		*/
		@GuardedBy("mInstallLock")
		private int performDexOptLI(PackageParser.Package pkg, String[] sharedLibraries,
		String[] targetInstructionSets, boolean checkForProfileUpdates,
		String targetCompilerFilter, CompilerStats.PackageStats packageStats) {
		final String[] instructionSets = targetInstructionSets != null ?
		targetInstructionSets : getAppDexInstructionSets(pkg.applicationInfo);
		final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
		final List<String> paths = pkg.getAllCodePathsExcludingResourceOnly();
		final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);

		final String compilerFilter = getRealCompilerFilter(pkg, targetCompilerFilter);
		final boolean profileUpdated = checkForProfileUpdates &&
		isProfileUpdated(pkg, sharedGid, compilerFilter);
		// TODO(calin,jeffhao): shared library paths should be adjusted to include previous code
		// paths (b/34169257).
		final String sharedLibrariesPath = getSharedLibrariesPath(sharedLibraries);
		final int dexoptFlags = getDexFlags(pkg, compilerFilter);

		int result = DEX_OPT_SKIPPED;
		for (String path : paths) {
		for (String dexCodeIsa : dexCodeInstructionSets) {
		int newResult = dexOptPath(pkg, path, dexCodeIsa, compilerFilter, profileUpdated,
		sharedLibrariesPath, dexoptFlags, sharedGid, packageStats);
		// The end result is:
		// - FAILED if any path failed,
		// - PERFORMED if at least one path needed compilation,
		// - SKIPPED when all paths are up to date
		if ((result != DEX_OPT_FAILED) && (newResult != DEX_OPT_SKIPPED)) {
		result = newResult;
		}
		}
		}
		return result;
		}

		/**
		* Performs dexopt on the {@code path} belonging to the package {@code pkg}.
		*
		* @return
		* DEX_OPT_FAILED if there was any exception during dexopt
		* DEX_OPT_PERFORMED if dexopt was performed successfully on the given path.
		* DEX_OPT_SKIPPED if the path does not need to be deopt-ed.
		*/
		@GuardedBy("mInstallLock")
		private int dexOptPath(PackageParser.Package pkg, String path, String isa,
		String compilerFilter, boolean profileUpdated, String sharedLibrariesPath,
		int dexoptFlags, int uid, CompilerStats.PackageStats packageStats) {
		int dexoptNeeded = getDexoptNeeded(path, isa, compilerFilter, profileUpdated);
		if (Math.abs(dexoptNeeded) == DexFile.NO_DEXOPT_NEEDED) {
		return DEX_OPT_SKIPPED;
		}

		// TODO(calin): there's no need to try to create the oat dir over and over again,
		// especially since it involve an extra installd call. We should create
		// if (if supported) on the fly during the dexopt call.
		String oatDir = createOatDirIfSupported(pkg, isa);

		Log.i(TAG, "Running dexopt (dexoptNeeded=" + dexoptNeeded + ") on: " + path
		+ " pkg=" + pkg.applicationInfo.packageName + " isa=" + isa
		+ " dexoptFlags=" + printDexoptFlags(dexoptFlags)
		+ " target-filter=" + compilerFilter + " oatDir=" + oatDir
		+ " sharedLibraries=" + sharedLibrariesPath);

		try {
		long startTime = System.currentTimeMillis();

		mInstaller.dexopt(path, uid, pkg.packageName, isa, dexoptNeeded, oatDir, dexoptFlags,
		compilerFilter, pkg.volumeUuid, sharedLibrariesPath);

		if (packageStats != null) {
		long endTime = System.currentTimeMillis();
		packageStats.setCompileTime(path, (int)(endTime - startTime));
		}
		return DEX_OPT_PERFORMED;
		} catch (InstallerException e) {
		Slog.w(TAG, "Failed to dexopt", e);
		return DEX_OPT_FAILED;
		}
		}

		/**
		* Adjust the given dexopt-needed value. Can be overridden to influence the decision to
		* optimize or not (and in what way).
		@@ -150,80 +241,76 @@ class PackageDexOptimizer {
		}
		}

		private int performDexOptLI(PackageParser.Package pkg, String[] sharedLibraries,
		String[] targetInstructionSets, boolean checkProfiles, String targetCompilerFilter,
		CompilerStats.PackageStats packageStats) {
		final String[] instructionSets = targetInstructionSets != null ?
		targetInstructionSets : getAppDexInstructionSets(pkg.applicationInfo);

		if (!canOptimizePackage(pkg)) {
		return DEX_OPT_SKIPPED;
		/**
		* Returns the compiler filter that should be used to optimize the package code.
		* The target filter will be updated if the package code is used by other apps
		* or if it has the safe mode flag set.
		*/
		private String getRealCompilerFilter(PackageParser.Package pkg, String targetCompilerFilter) {
		int flags = pkg.applicationInfo.flags;
		boolean vmSafeMode = (flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0;
		if (vmSafeMode) {
		// For the compilation, it doesn't really matter what we return here because installd
		// will replace the filter with interpret-only anyway.
		// However, we return a non profile guided filter so that we simplify the logic of
		// merging profiles.
		// TODO(calin): safe mode path could be simplified if we pass interpret-only from
		// here rather than letting installd decide on the filter.
		return getNonProfileGuidedCompilerFilter(targetCompilerFilter);
		}

		final List<String> paths = pkg.getAllCodePathsExcludingResourceOnly();
		final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);

		boolean isProfileGuidedFilter = DexFile.isProfileGuidedCompilerFilter(targetCompilerFilter);
		// If any part of the app is used by other apps, we cannot use profile-guided
		// compilation.
		if (isProfileGuidedFilter && isUsedByOtherApps(pkg)) {
		checkProfiles = false;

		targetCompilerFilter = getNonProfileGuidedCompilerFilter(targetCompilerFilter);
		if (DexFile.isProfileGuidedCompilerFilter(targetCompilerFilter)) {
		throw new IllegalStateException(targetCompilerFilter);
		}
		isProfileGuidedFilter = false;
		if (isProfileGuidedCompilerFilter(targetCompilerFilter) && isUsedByOtherApps(pkg)) {
		// If the dex files is used by other apps, we cannot use profile-guided compilation.
		return getNonProfileGuidedCompilerFilter(targetCompilerFilter);
		}

		// Disable profile guided compilation for vmSafeMode.
		final boolean vmSafeMode = (pkg.applicationInfo.flags & ApplicationInfo.FLAG_VM_SAFE_MODE)
		!= 0;
		final boolean debuggable = (pkg.applicationInfo.flags & ApplicationInfo.FLAG_DEBUGGABLE)
		!= 0;
		if (vmSafeMode) {
		targetCompilerFilter = getNonProfileGuidedCompilerFilter(targetCompilerFilter);
		isProfileGuidedFilter = false;
		return targetCompilerFilter;
		}

		// If we're asked to take profile updates into account, check now.
		boolean newProfile = false;
		if (checkProfiles && isProfileGuidedFilter) {
		// Merge profiles, see if we need to do anything.
		try {
		newProfile = mInstaller.mergeProfiles(sharedGid, pkg.packageName);
		} catch (InstallerException e) {
		Slog.w(TAG, "Failed to merge profiles", e);
		}
		/**
		* Computes the dex flags that needs to be pass to installd for the given package and compiler
		* filter.
		*/
		private int getDexFlags(PackageParser.Package pkg, String compilerFilter) {
		int flags = pkg.applicationInfo.flags;
		boolean vmSafeMode = (flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0;
		boolean debuggable = (flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0;
		// Profile guide compiled oat files should not be public.
		boolean isProfileGuidedFilter = isProfileGuidedCompilerFilter(compilerFilter);
		boolean isPublic = !pkg.isForwardLocked() && !isProfileGuidedFilter;
		int profileFlag = isProfileGuidedFilter ? DEXOPT_PROFILE_GUIDED : 0;
		int dexFlags =
		(isPublic ? DEXOPT_PUBLIC : 0)
		\| (vmSafeMode ? DEXOPT_SAFEMODE : 0)
		\| (debuggable ? DEXOPT_DEBUGGABLE : 0)
		\| profileFlag
		\| DEXOPT_BOOTCOMPLETE;
		return adjustDexoptFlags(dexFlags);
		}

		boolean performedDexOpt = false;
		boolean successfulDexOpt = true;

		final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
		for (String dexCodeInstructionSet : dexCodeInstructionSets) {
		for (String path : paths) {
		/**
		* Assesses if there's a need to perform dexopt on {@code path} for the given
		* configuration (isa, compiler filter, profile).
		*/
		private int getDexoptNeeded(String path, String isa, String compilerFilter,
		boolean newProfile) {
		int dexoptNeeded;
		try {
		dexoptNeeded = DexFile.getDexOptNeeded(path,
		dexCodeInstructionSet, targetCompilerFilter, newProfile);
		dexoptNeeded = DexFile.getDexOptNeeded(path, isa, compilerFilter, newProfile);
		} catch (IOException ioe) {
		Slog.w(TAG, "IOException reading apk: " + path, ioe);
		return DEX_OPT_FAILED;
		}
		dexoptNeeded = adjustDexoptNeeded(dexoptNeeded);
		if (PackageManagerService.DEBUG_DEXOPT) {
		Log.i(TAG, "DexoptNeeded for " + path + "@" + targetCompilerFilter + " is " +
		dexoptNeeded);
		return adjustDexoptNeeded(dexoptNeeded);
		}

		if (dexoptNeeded == DexFile.NO_DEXOPT_NEEDED) {
		continue;
		/**
		* Computes the shared libraries path that should be passed to dexopt.
		*/
		private String getSharedLibrariesPath(String[] sharedLibraries) {
		if (sharedLibraries == null \|\| sharedLibraries.length == 0) {
		return null;
		}

		String oatDir = createOatDirIfSupported(pkg, dexCodeInstructionSet);
		String sharedLibrariesPath = null;
		if (sharedLibraries != null && sharedLibraries.length != 0) {
		StringBuilder sb = new StringBuilder();
		for (String lib : sharedLibraries) {
		if (sb.length() != 0) {
		@@ -231,55 +318,34 @@ class PackageDexOptimizer {
		}
		sb.append(lib);
		}
		sharedLibrariesPath = sb.toString();
		return sb.toString();
		}
		Log.i(TAG, "Running dexopt on: " + path + " pkg="
		+ pkg.applicationInfo.packageName + " isa=" + dexCodeInstructionSet
		+ " vmSafeMode=" + vmSafeMode + " debuggable=" + debuggable
		+ " target-filter=" + targetCompilerFilter + " oatDir=" + oatDir
		+ " sharedLibraries=" + sharedLibrariesPath);
		// Profile guide compiled oat files should not be public.
		final boolean isPublic = !pkg.isForwardLocked() && !isProfileGuidedFilter;
		final int profileFlag = isProfileGuidedFilter ? DEXOPT_PROFILE_GUIDED : 0;
		final int dexFlags = adjustDexoptFlags(
		( isPublic ? DEXOPT_PUBLIC : 0)
		\| (vmSafeMode ? DEXOPT_SAFEMODE : 0)
		\| (debuggable ? DEXOPT_DEBUGGABLE : 0)
		\| profileFlag
		\| DEXOPT_BOOTCOMPLETE);

		try {
		long startTime = System.currentTimeMillis();

		mInstaller.dexopt(path, sharedGid, pkg.packageName, dexCodeInstructionSet,
		dexoptNeeded, oatDir, dexFlags, targetCompilerFilter, pkg.volumeUuid,
		sharedLibrariesPath);
		performedDexOpt = true;

		if (packageStats != null) {
		long endTime = System.currentTimeMillis();
		packageStats.setCompileTime(path, (int)(endTime - startTime));
		/**
		* Checks if there is an update on the profile information of the {@code pkg}.
		* If the compiler filter is not profile guided the method returns false.
		*
		* Note that this is a "destructive" operation with side effects. Under the hood the
		* current profile and the reference profile will be merged and subsequent calls
		* may return a different result.
		*/
		private boolean isProfileUpdated(PackageParser.Package pkg, int uid, String compilerFilter) {
		// Check if we are allowed to merge and if the compiler filter is profile guided.
		if (!isProfileGuidedCompilerFilter(compilerFilter)) {
		return false;
		}
		// Merge profiles. It returns whether or not there was an updated in the profile info.
		try {
		return mInstaller.mergeProfiles(uid, pkg.packageName);
		} catch (InstallerException e) {
		Slog.w(TAG, "Failed to dexopt", e);
		successfulDexOpt = false;
		}
		}
		}

		if (successfulDexOpt) {
		// If we've gotten here, we're sure that no error occurred. We've either
		// dex-opted one or more paths or instruction sets or we've skipped
		// all of them because they are up to date. In both cases this package
		// doesn't need dexopt any longer.
		return performedDexOpt ? DEX_OPT_PERFORMED : DEX_OPT_SKIPPED;
		} else {
		return DEX_OPT_FAILED;
		Slog.w(TAG, "Failed to merge profiles", e);
		}
		return false;
		}

		/**
		* Creates oat dir for the specified package. In certain cases oat directory
		* Creates oat dir for the specified package if needed and supported.
		* In certain cases oat directory
		* <strong>cannot</strong> be created:
		* <ul>
		* <li>{@code pkg} is a system app, which is not updated.</li>
		@@ -296,6 +362,9 @@ class PackageDexOptimizer {
		}
		File codePath = new File(pkg.codePath);
		if (codePath.isDirectory()) {
		// TODO(calin): why do we create this only if the codePath is a directory? (i.e for
		// cluster packages). It seems that the logic for the folder creation is
		// split between installd and here.
		File oatDir = getOatDir(codePath);
		try {
		mInstaller.createOatDir(oatDir.getAbsolutePath(), dexInstructionSet);
		@@ -350,6 +419,27 @@ class PackageDexOptimizer {
		return false;
		}

		private String printDexoptFlags(int flags) {
		ArrayList<String> flagsList = new ArrayList<>();

		if ((flags & DEXOPT_BOOTCOMPLETE) == DEXOPT_BOOTCOMPLETE) {
		flagsList.add("boot_complete");
		}
		if ((flags & DEXOPT_DEBUGGABLE) == DEXOPT_DEBUGGABLE) {
		flagsList.add("debuggable");
		}
		if ((flags & DEXOPT_PROFILE_GUIDED) == DEXOPT_PROFILE_GUIDED) {
		flagsList.add("profile_guided");
		}
		if ((flags & DEXOPT_PUBLIC) == DEXOPT_PUBLIC) {
		flagsList.add("public");
		}
		if ((flags & DEXOPT_SAFEMODE) == DEXOPT_SAFEMODE) {
		flagsList.add("safemode");
		}
		return String.join(",", flagsList);
		}

		/**
		* A specialized PackageDexOptimizer that overrides already-installed checks, forcing a
		* dexopt path.