TouchDex.java revision f6c387128427e121477c1b32ad35cdcaa5101ba3
1f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 3f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * you may not use this file except in compliance with the License. 6f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * You may obtain a copy of the License at 7f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 8f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 10f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * See the License for the specific language governing permissions and 14f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * limitations under the License. 15f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 16f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 17f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpackage dalvik.system; 18f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 19f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.io.BufferedReader; 20f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.io.InputStreamReader; 21f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.io.IOException; 22f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.io.File; 23f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.io.FilenameFilter; 24f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 25f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/** 26f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Induces optimization/verification of a set of DEX files. 27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 28f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * TODO: This class is public, so SystemServer can access it. This is NOT 29f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the correct long-term solution; once we have a real installer and/or 30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dalvik-cache manager, this class should be removed. 31f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @cts See to-do about removing this class... 33f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 34f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @since Android 1.0 35f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 36f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpublic class TouchDex { 37f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 38f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 39f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Forks a process, makes sure the DEX files are prepared, and returns 40f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * when everything is finished. 41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * <p> 42f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The filenames must be the same as will be used when the files are 43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * actually opened, because the dalvik-cache filename is based upon 44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this filename. (The absolute path to the JAR/ZIP/APK should work.) 45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @param dexFiles a colon-separated list of DEX files. 47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @return zero on success 48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 49f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @cts What about error cases? 50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 51f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public static int start(String dexFiles) { 52f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return trampoline(dexFiles, System.getProperty("java.boot.class.path")); 53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This calls fork() and then, in the child, calls cont(dexFiles). 57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @param dexFiles Colon-separated list of DEX files. 59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @return zero on success 60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project native private static int trampoline(String dexFiles, String bcp); 62f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 63f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 64f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The entry point for the child process. args[0] can be a colon-separated 65f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * path list, or "-" to read from stdin. 66f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * <p> 67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Alternatively, if we're invoked directly from the command line we 68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * just start here (skipping the fork/exec stuff). 69f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 70f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @param args command line args 71f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 72f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public static void main(String[] args) { 73f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ("-".equals(args[0])) { 75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project BufferedReader in = new BufferedReader( 76f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project new InputStreamReader(System.in), 256); 77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 78f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project String line; 79f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project try { 80f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while ((line = in.readLine()) != null) { 81f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project prepFiles(line); 82f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 83f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } catch (IOException ex) { 84f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throw new RuntimeException ("Error processing stdin"); 85f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 86f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 87f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project prepFiles(args[0]); 88f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 89f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 90f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project System.out.println(" Prep complete"); 91f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 92f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 93f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 94f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private static String expandDirectories(String dexPath) { 95f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project String[] parts = dexPath.split(":"); 96f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StringBuilder outPath = new StringBuilder(dexPath.length()); 97f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 98f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // A filename filter accepting *.jar and *.apk 99f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project FilenameFilter filter = new FilenameFilter() { 100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public boolean accept(File dir, String name) { 101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return name.endsWith(".jar") || name.endsWith(".apk"); 102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project }; 104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (String part: parts) { 106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project File f = new File(part); 107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (f.isFile()) { 109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project outPath.append(part); 110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project outPath.append(':'); 111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else if (f.isDirectory()) { 112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project String[] filenames = f.list(filter); 113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (filenames == null) { 115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project System.err.println("I/O error with directory: " + part); 116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project continue; 117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (String filename: filenames) { 120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project outPath.append(part); 121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project outPath.append(File.separatorChar); 122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project outPath.append(filename); 123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project outPath.append(':'); 124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project System.err.println("File not found: " + part); 127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return outPath.toString(); 132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private static void prepFiles(String dexPath) { 135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project System.out.println(" Prepping: " + dexPath); 137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project TouchDexLoader loader 139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project = new TouchDexLoader(expandDirectories(dexPath), null); 140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project try { 142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /* By looking for a nonexistent class, we'll trick TouchDexLoader 143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * into trying to load something from every file on dexPath, 144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * optimizing all of them as a side-effect. 145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The optimization happens implicitly in the VM the first time 147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * someone tries to load a class from an unoptimized dex file. 148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project loader.loadClass("com.google.NonexistentClassNeverFound"); 150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throw new RuntimeException("nonexistent class loaded?!"); 151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } catch (ClassNotFoundException cnfe) { 152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project //System.out.println("got expected dnfe"); 153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 157