ZygoteInit.java revision e540833fdff4d58e37c9ba859388e24e2945ed45
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage com.android.internal.os; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.pm.ActivityInfo; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.Resources; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.net.LocalServerSocket; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.SystemClock; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.SystemProperties; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Config; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.EventLog; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Log; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport dalvik.system.VMRuntime; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport dalvik.system.Zygote; 33e540833fdff4d58e37c9ba859388e24e2945ed45Bob Leeimport dalvik.system.SamplingProfiler; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.BufferedReader; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.FileDescriptor; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.IOException; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.InputStream; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.InputStreamReader; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.reflect.InvocationTargetException; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.reflect.Method; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.reflect.Modifier; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Startup class for the zygote process. 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Pre-initializes some classes, and then waits for commands on a UNIX domain 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * socket. Based on these commands, forks of child processes that inherit 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the initial state of the VM. 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Please see {@link ZygoteConnection.Arguments} for documentation on the 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * client protocol. 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class ZygoteInit { 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final String TAG = "Zygote"; 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final String ANDROID_SOCKET_ENV = "ANDROID_SOCKET_zygote"; 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int LOG_BOOT_PROGRESS_PRELOAD_START = 3020; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int LOG_BOOT_PROGRESS_PRELOAD_END = 3030; 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** when preloading, GC after allocating this many bytes */ 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int PRELOAD_GC_THRESHOLD = 50000; 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static LocalServerSocket sServerSocket; 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to pre-load resources. We hold a global reference on it so it 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * never gets destroyed. 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static Resources mResources; 76e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The number of times that the main Zygote loop 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * should run before calling gc() again. 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int GC_LOOP_COUNT = 10; 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If true, zygote forks for each peer. If false, a select loop is used 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside a single process. The latter is preferred. 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean ZYGOTE_FORK_MODE = false; 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The name of a resource file that contains classes to preload. 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final String PRELOADED_CLASSES = "preloaded-classes"; 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Controls whether we should preload resources during zygote init. */ 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PRELOAD_RESOURCES = true; 96599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden 97599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden /** 98599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden * List of methods we "warm up" in the register map cache. These were 99599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden * chosen because they appeared on the stack in GCs in multiple 100599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden * applications. 101599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden * 102599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden * This is in a VM-ready format, to minimize string processing. If a 103599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden * class is not already loaded, or a method is not found, the entry 104599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden * will be skipped. 105599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden * 106599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden * This doesn't really merit a separately-generated input file at this 107599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden * time. The list is fairly short, and the consequences of failure 108599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden * are minor. 109599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden */ 110599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden private static final String[] REGISTER_MAP_METHODS = { 111599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden // (currently not doing any) 112599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden //"Landroid/app/Activity;.setContentView:(I)V", 113599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden }; 114599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden 115599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes a static "main(argv[]) method on class "className". 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Converts various failing exceptions into RuntimeExceptions, with 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the assumption that they will then cause the VM instance to exit. 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param loader class loader to use 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param className Fully-qualified class name 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param argv Argument vector for main() 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static void invokeStaticMain(ClassLoader loader, 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String className, String[] argv) 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws ZygoteInit.MethodAndArgsCaller { 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Class<?> cl; 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cl = loader.loadClass(className); 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (ClassNotFoundException ex) { 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Missing class when invoking static main " + className, 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ex); 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Method m; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m = cl.getMethod("main", new Class[] { String[].class }); 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (NoSuchMethodException ex) { 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Missing static main on " + className, ex); 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (SecurityException ex) { 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Problem getting static main on " + className, ex); 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int modifiers = m.getModifiers(); 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (! (Modifier.isStatic(modifiers) && Modifier.isPublic(modifiers))) { 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Main method is not public and static on " + className); 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This throw gets caught in ZygoteInit.main(), which responds 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * by invoking the exception's run() method. This arrangement 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clears up all the stack frames that were required in setting 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * up the process. 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ZygoteInit.MethodAndArgsCaller(m, argv); 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Registers a server socket for zygote command connections 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws RuntimeException when open fails 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void registerZygoteSocket() { 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sServerSocket == null) { 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int fileDesc; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String env = System.getenv(ANDROID_SOCKET_ENV); 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fileDesc = Integer.parseInt(env); 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (RuntimeException ex) { 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ANDROID_SOCKET_ENV + " unset or invalid", ex); 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sServerSocket = new LocalServerSocket( 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createFileDescriptor(fileDesc)); 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex) { 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Error binding to local socket '" + fileDesc + "'", ex); 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Waits for and accepts a single command connection. Throws 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * RuntimeException on failure. 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static ZygoteConnection acceptCommandPeer() { 195e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee try { 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new ZygoteConnection(sServerSocket.accept()); 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex) { 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "IOException during accept()", ex); 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Close and clean up zygote sockets. Called on shutdown and on the 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * child's exit path. 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static void closeServerSocket() { 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sServerSocket != null) { 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sServerSocket.close(); 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex) { 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "Zygote: error closing sockets", ex); 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sServerSocket = null; 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int UNPRIVILEGED_UID = 9999; 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int UNPRIVILEGED_GID = 9999; 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ROOT_UID = 0; 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ROOT_GID = 0; 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets effective user ID. 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void setEffectiveUser(int uid) { 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int errno = setreuid(ROOT_UID, uid); 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (errno != 0) { 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "setreuid() failed. errno: " + errno); 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets effective group ID. 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void setEffectiveGroup(int gid) { 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int errno = setregid(ROOT_GID, gid); 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (errno != 0) { 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "setregid() failed. errno: " + errno); 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Performs Zygote process initialization. Loads and initializes 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * commonly used classes. 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Most classes only cause a few hundred bytes to be allocated, but 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a few will allocate a dozen Kbytes (in one case, 500+K). 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void preloadClasses() { 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final VMRuntime runtime = VMRuntime.getRuntime(); 254e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project InputStream is = ZygoteInit.class.getClassLoader().getResourceAsStream( 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PRELOADED_CLASSES); 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (is == null) { 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "Couldn't find " + PRELOADED_CLASSES + "."); 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i(TAG, "Preloading classes..."); 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long startTime = SystemClock.uptimeMillis(); 262e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Drop root perms while running static initializers. 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setEffectiveGroup(UNPRIVILEGED_GID); 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setEffectiveUser(UNPRIVILEGED_UID); 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Alter the target heap utilization. With explicit GCs this 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is not likely to have any effect. 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float defaultUtilization = runtime.getTargetHeapUtilization(); 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.setTargetHeapUtilization(0.8f); 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Start with a clean slate. 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.gcSoftReferences(); 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startAllocCounting(); 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 278e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee BufferedReader br 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new BufferedReader(new InputStreamReader(is), 256); 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = 0; 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String line; 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String missingClasses = null; 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while ((line = br.readLine()) != null) { 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Skip comments and blank lines. 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project line = line.trim(); 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (line.startsWith("#") || line.equals("")) { 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Config.LOGV) { 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.v(TAG, "Preloading " + line + "..."); 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Class.forName(line); 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Debug.getGlobalAllocSize() > PRELOAD_GC_THRESHOLD) { 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Config.LOGV) { 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.v(TAG, 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project " GC at " + Debug.getGlobalAllocSize()); 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.gcSoftReferences(); 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.resetGlobalAllocSize(); 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project count++; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (ClassNotFoundException e) { 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "Class not found for preloading: " + line); 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (missingClasses == null) { 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project missingClasses = line; 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project missingClasses += " " + line; 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3132e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee } catch (Throwable t) { 3142e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee Log.e(TAG, "Error preloading " + line + ".", t); 3152e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee if (t instanceof Error) { 3162e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee throw (Error) t; 3172e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee } 3182e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee if (t instanceof RuntimeException) { 3192e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee throw (RuntimeException) t; 3202e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee } 3212e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee throw new RuntimeException(t); 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (missingClasses != null && 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "1".equals(SystemProperties.get("persist.service.adb.enable"))) { 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException( 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Missing class(es) for preloading, update preloaded-classes [" 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + missingClasses + "]"); 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i(TAG, "...preloaded " + count + " classes in " 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + (SystemClock.uptimeMillis()-startTime) + "ms."); 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException e) { 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "Error reading " + PRELOADED_CLASSES + ".", e); 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } finally { 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore default. 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.setTargetHeapUtilization(defaultUtilization); 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopAllocCounting(); 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Bring back root. We'll need it later. 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setEffectiveUser(ROOT_UID); 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setEffectiveGroup(ROOT_GID); 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 350599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden * Pre-caches register maps for methods that are commonly used. 351599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden */ 352599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden private static void cacheRegisterMaps() { 353599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden String failed = null; 354599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden int failure; 355599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden long startTime = System.nanoTime(); 356599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden 357599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden failure = 0; 358599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden 359599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden for (int i = 0; i < REGISTER_MAP_METHODS.length; i++) { 360599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden String str = REGISTER_MAP_METHODS[i]; 361599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden 362599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden if (!Debug.cacheRegisterMap(str)) { 363599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden if (failed == null) 364599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden failed = str; 365599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden failure++; 366599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden } 367599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden } 368599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden 369599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden long delta = System.nanoTime() - startTime; 370599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden 371599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden if (failure == REGISTER_MAP_METHODS.length) { 372599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden if (REGISTER_MAP_METHODS.length > 0) { 373599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden Log.i(TAG, 374599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden "Register map caching failed (precise GC not enabled?)"); 375599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden } 376599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden return; 377599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden } 378599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden 379599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden Log.i(TAG, "Register map cache: found " + 380599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden (REGISTER_MAP_METHODS.length - failure) + " of " + 381599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden REGISTER_MAP_METHODS.length + " methods in " + 382599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden (delta / 1000000L) + "ms"); 383599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden if (failure > 0) { 384599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden Log.i(TAG, " First failure: " + failed); 385599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden } 386599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden } 387599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden 388599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden /** 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Load in commonly used resources, so they can be shared across 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * processes. 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * These tend to be a few Kbytes, but are frequently in the 20-40K 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * range, and occasionally even larger. 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void preloadResources() { 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final VMRuntime runtime = VMRuntime.getRuntime(); 397e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startAllocCounting(); 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.gcSoftReferences(); 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResources = Resources.getSystem(); 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResources.startPreloading(); 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PRELOAD_RESOURCES) { 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i(TAG, "Preloading resources..."); 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long startTime = SystemClock.uptimeMillis(); 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray ar = mResources.obtainTypedArray( 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.array.preloaded_drawables); 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int N = preloadDrawables(runtime, ar); 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i(TAG, "...preloaded " + N + " resources in " 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + (SystemClock.uptimeMillis()-startTime) + "ms."); 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startTime = SystemClock.uptimeMillis(); 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ar = mResources.obtainTypedArray( 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.array.preloaded_color_state_lists); 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project N = preloadColorStateLists(runtime, ar); 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i(TAG, "...preloaded " + N + " resources in " 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + (SystemClock.uptimeMillis()-startTime) + "ms."); 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResources.finishPreloading(); 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (RuntimeException e) { 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.w(TAG, "Failure preloading resources", e); 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } finally { 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopAllocCounting(); 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static int preloadColorStateLists(VMRuntime runtime, TypedArray ar) { 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int N = ar.length(); 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i=0; i<N; i++) { 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Debug.getGlobalAllocSize() > PRELOAD_GC_THRESHOLD) { 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Config.LOGV) { 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.v(TAG, " GC at " + Debug.getGlobalAllocSize()); 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.gcSoftReferences(); 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.resetGlobalAllocSize(); 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int id = ar.getResourceId(i, 0); 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Config.LOGV) { 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.v(TAG, "Preloading resource #" + Integer.toHexString(id)); 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (id != 0) { 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResources.getColorStateList(id); 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return N; 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static int preloadDrawables(VMRuntime runtime, TypedArray ar) { 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int N = ar.length(); 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i=0; i<N; i++) { 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Debug.getGlobalAllocSize() > PRELOAD_GC_THRESHOLD) { 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Config.LOGV) { 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.v(TAG, " GC at " + Debug.getGlobalAllocSize()); 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.gcSoftReferences(); 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.resetGlobalAllocSize(); 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int id = ar.getResourceId(i, 0); 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Config.LOGV) { 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.v(TAG, "Preloading resource #" + Integer.toHexString(id)); 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (id != 0) { 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable dr = mResources.getDrawable(id); 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((dr.getChangingConfigurations()&~ActivityInfo.CONFIG_FONT_SCALE) != 0) { 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.w(TAG, "Preloaded drawable resource #0x" 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(id) 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " (" + ar.getString(i) + ") that varies with configuration!!"); 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return N; 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Runs several special GCs to try to clean up a few generations of 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * softly- and final-reachable objects, along with any other garbage. 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is only useful just before a fork(). 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /*package*/ static void gc() { 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final VMRuntime runtime = VMRuntime.getRuntime(); 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* runFinalizationSync() lets finalizers be called in Zygote, 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which doesn't have a HeapWorker thread. 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.gcSoftReferences(); 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.gcSoftReferences(); 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.gcSoftReferences(); 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Finish remaining work for the newly forked system server process. 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void handleSystemServerProcess( 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ZygoteConnection.Arguments parsedArgs) 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws ZygoteInit.MethodAndArgsCaller { 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * First, set the capabilities if necessary 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (parsedArgs.uid != 0) { 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCapabilities(parsedArgs.permittedCapabilities, 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project parsedArgs.effectiveCapabilities); 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex) { 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "Error setting capabilities", ex); 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project closeServerSocket(); 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Pass the remaining arguments to SystemServer. 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * "--nice-name=system_server com.android.server.SystemServer" 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RuntimeInit.zygoteInit(parsedArgs.remainingArgs); 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* should never reach here */ 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Prepare the arguments and fork for the system server process. 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 530e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee private static boolean startSystemServer() 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws MethodAndArgsCaller, RuntimeException { 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Hardcoded command line to start the system server */ 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String args[] = { 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "--setuid=1000", 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "--setgid=1000", 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "--setgroups=1001,1002,1003,1004,1005,1006,1007,1008,1009,1010,3001,3002,3003", 5371caefa6c40a732dbe75b0782f0aa3147017c38d0San Mehat "--capabilities=130104352,130104352", 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "--runtime-init", 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "--nice-name=system_server", 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "com.android.server.SystemServer", 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ZygoteConnection.Arguments parsedArgs = null; 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int pid; 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project parsedArgs = new ZygoteConnection.Arguments(args); 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enable debugging of the system process if *either* the command line flags 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * indicate it should be debuggable or the ro.debuggable system property 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is set to "1" 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int debugFlags = parsedArgs.debugFlags; 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ("1".equals(SystemProperties.get("ro.debuggable"))) 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project debugFlags |= Zygote.DEBUG_ENABLE_DEBUGGER; 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Request to fork the system server process */ 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pid = Zygote.forkSystemServer( 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project parsedArgs.uid, parsedArgs.gid, 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project parsedArgs.gids, debugFlags, null); 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IllegalArgumentException ex) { 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException(ex); 564e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee } 565e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* For child process */ 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (pid == 0) { 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handleSystemServerProcess(parsedArgs); 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static void main(String argv[]) { 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 576e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee // Start profiling the zygote initialization. 577e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee SamplingProfilerIntegration.start(); 578e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project registerZygoteSocket(); 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EventLog.writeEvent(LOG_BOOT_PROGRESS_PRELOAD_START, 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SystemClock.uptimeMillis()); 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project preloadClasses(); 583599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden //cacheRegisterMaps(); 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project preloadResources(); 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EventLog.writeEvent(LOG_BOOT_PROGRESS_PRELOAD_END, 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SystemClock.uptimeMillis()); 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 588e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee if (SamplingProfilerIntegration.isEnabled()) { 589e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee SamplingProfiler sp = SamplingProfiler.getInstance(); 590e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee sp.pause(); 591e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee SamplingProfilerIntegration.writeZygoteSnapshot(); 592e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee sp.shutDown(); 593e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee } 594e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do an initial gc to clean up after startup 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gc(); 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If requested, start system server directly from Zygote 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (argv.length != 2) { 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "ZygoteInit.main expects two arguments"); 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (argv[1].equals("true")) { 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startSystemServer(); 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i(TAG, "Accepting command socket connections"); 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ZYGOTE_FORK_MODE) { 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runForkMode(); 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runSelectLoopMode(); 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project closeServerSocket(); 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (MethodAndArgsCaller caller) { 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project caller.run(); 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (RuntimeException ex) { 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "Zygote died with exception", ex); 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project closeServerSocket(); 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw ex; 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Runs the zygote in accept-and-fork mode. In this mode, each peer 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * gets its own zygote spawner process. This code is retained for 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * reference only. 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws MethodAndArgsCaller in a child process when a main() should 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be executed. 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void runForkMode() throws MethodAndArgsCaller { 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (true) { 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ZygoteConnection peer = acceptCommandPeer(); 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int pid; 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pid = Zygote.fork(); 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (pid == 0) { 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The child process should handle the peer requests 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The child does not accept any more connections 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sServerSocket.close(); 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex) { 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "Zygote Child: error closing sockets", ex); 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } finally { 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sServerSocket = null; 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project peer.run(); 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (pid > 0) { 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project peer.closeSocket(); 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Error invoking fork()"); 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Runs the zygote process's select loop. Accepts new connections as 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * they happen, and reads commands from connections one spawn-request's 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * worth at a time. 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws MethodAndArgsCaller in a child process when a main() should 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be executed. 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void runSelectLoopMode() throws MethodAndArgsCaller { 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<FileDescriptor> fds = new ArrayList(); 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<ZygoteConnection> peers = new ArrayList(); 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project FileDescriptor[] fdArray = new FileDescriptor[4]; 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fds.add(sServerSocket.getFileDescriptor()); 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project peers.add(null); 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int loopCount = GC_LOOP_COUNT; 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (true) { 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Call gc() before we block in select(). 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * It's work that has to be done anyway, and it's better 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid making every child do it. It will also 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * madvise() any free memory as a side-effect. 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Don't call it every time, because walking the entire 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * heap is a lot of overhead to free a few hundred bytes. 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (loopCount <= 0) { 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gc(); 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project loopCount = GC_LOOP_COUNT; 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project loopCount--; 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fdArray = fds.toArray(fdArray); 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = selectReadable(fdArray); 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex) { 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Error in select()", ex); 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index < 0) { 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Error in select()"); 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (index == 0) { 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ZygoteConnection newPeer = acceptCommandPeer(); 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project peers.add(newPeer); 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fds.add(newPeer.getFileDesciptor()); 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean done; 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project done = peers.get(index).runOnce(); 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (done) { 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project peers.remove(index); 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fds.remove(index); 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Linux syscall "setreuid()" 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param ruid real uid 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param euid effective uid 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return 0 on success, non-zero errno on fail 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native int setreuid(int ruid, int euid); 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Linux syscall "setregid()" 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rgid real gid 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param egid effective gid 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return 0 on success, non-zero errno on fail 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native int setregid(int rgid, int egid); 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes the linux syscall "setpgid" 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pid pid to change 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pgid new process group of pid 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return 0 on success or non-zero errno on fail 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native int setpgid(int pid, int pgid); 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes the linux syscall "getpgid" 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pid pid to query 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return pgid of pid in question 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException on error 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native int getpgid(int pid) throws IOException; 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes the syscall dup2() to copy the specified descriptors into 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * stdin, stdout, and stderr. The existing stdio descriptors will be 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * closed and errors during close will be ignored. The specified 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * descriptors will also remain open at their original descriptor numbers, 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * so the caller may want to close the original descriptors. 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param in new stdin 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param out new stdout 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param err new stderr 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native void reopenStdio(FileDescriptor in, 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project FileDescriptor out, FileDescriptor err) throws IOException; 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Calls close() on a file descriptor 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param fd descriptor to close 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native void closeDescriptor(FileDescriptor fd) 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IOException; 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Toggles the close-on-exec flag for the specified file descriptor. 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param fd non-null; file descriptor 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param flag desired close-on-exec flag state 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native void setCloseOnExec(FileDescriptor fd, boolean flag) 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IOException; 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieves the permitted capability set from another process. 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pid >=0 process ID or 0 for this process 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException on error 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native long capgetPermitted(int pid) 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IOException; 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the permitted and effective capability sets of this process. 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param permittedCapabilities permitted set 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param effectiveCapabilities effective set 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException on error 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native void setCapabilities( 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long permittedCapabilities, 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long effectiveCapabilities) throws IOException; 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes select() on the provider array of file descriptors (selecting 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for readability only). Array elements of null are ignored. 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param fds non-null; array of readable file descriptors 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return index of descriptor that is now readable or -1 for empty array. 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException if an error occurs 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native int selectReadable(FileDescriptor[] fds) throws IOException; 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates a file descriptor from an int fd. 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param fd integer OS file descriptor 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return non-null; FileDescriptor instance 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException if fd is invalid 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native FileDescriptor createFileDescriptor(int fd) 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IOException; 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Class not instantiable. 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ZygoteInit() { 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper exception class which holds a method and arguments and 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * can call them. This is used as part of a trampoline to get rid of 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the initial process setup stack frames. 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class MethodAndArgsCaller extends Exception 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project implements Runnable { 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** method to call */ 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Method mMethod; 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** argument array */ 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final String[] mArgs; 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public MethodAndArgsCaller(Method method, String[] args) { 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMethod = method; 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mArgs = args; 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMethod.invoke(null, new Object[] { mArgs }); 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IllegalAccessException ex) { 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException(ex); 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (InvocationTargetException ex) { 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Throwable cause = ex.getCause(); 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (cause instanceof RuntimeException) { 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw (RuntimeException) cause; 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (cause instanceof Error) { 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw (Error) cause; 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException(ex); 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 875