ZygoteInit.java revision 6c9af96de59ab2feebe3d0165548591c4f632bc5
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 19a9569ff70f51a93e134e4d45558884d196b869c3Elliott Hughesimport static android.system.OsConstants.S_IRWXG; 20a9569ff70f51a93e134e4d45558884d196b869c3Elliott Hughesimport static android.system.OsConstants.S_IRWXO; 214c74f8c1713fa82904b10beec4da9ad8ebb97375Kenny Root 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.Resources; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.net.LocalServerSocket; 2574c691221b620d74eafff315bf7c8ed8c4b58f3aRomain Guyimport android.opengl.EGL14; 2664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamathimport android.os.Build; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 28ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brownimport android.os.Process; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.SystemClock; 30c5e3638c06f30827cdc6eb0d987adb677e900487Romain Guyimport android.os.SystemProperties; 316ad0452e6301c0650f58f3991f7c523f6f279ddbJamie Gennisimport android.os.Trace; 329a76e9ba1adbdf7cc431b1e6fe454cf0c5d900deBill Yiimport android.system.ErrnoException; 33860c5911a2437ab2543614e138c98553d0d4ebf7Elliott Hughesimport android.system.Os; 34860c5911a2437ab2543614e138c98553d0d4ebf7Elliott Hughesimport android.system.OsConstants; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.EventLog; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Log; 3729564cd24589867f653cd22cabbaac6493cfc530Narayan Kamathimport android.util.Slog; 3808cfaf672604422dd355d6703aec78f3aa5ee74eTorne (Richard Coles)import android.webkit.WebViewFactory; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4029564cd24589867f653cd22cabbaac6493cfc530Narayan Kamathimport dalvik.system.DexFile; 4129564cd24589867f653cd22cabbaac6493cfc530Narayan Kamathimport dalvik.system.PathClassLoader; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport dalvik.system.VMRuntime; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4446703b099516c383a6882815bcf9cd4df0ec538dBrian Carlstromimport libcore.io.IoUtils; 4546703b099516c383a6882815bcf9cd4df0ec538dBrian Carlstrom 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.BufferedReader; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.FileDescriptor; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.IOException; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.InputStream; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.InputStreamReader; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.reflect.InvocationTargetException; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.reflect.Method; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.reflect.Modifier; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Startup class for the zygote process. 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Pre-initializes some classes, and then waits for commands on a UNIX domain 60e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes * socket. Based on these commands, forks off child processes that inherit 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the initial state of the VM. 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Please see {@link ZygoteConnection.Arguments} for documentation on the 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * client protocol. 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class ZygoteInit { 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final String TAG = "Zygote"; 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 71c5e3638c06f30827cdc6eb0d987adb677e900487Romain Guy private static final String PROPERTY_DISABLE_OPENGL_PRELOADING = "ro.zygote.disable_gl_preload"; 72c5e3638c06f30827cdc6eb0d987adb677e900487Romain Guy 73c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath private static final String ANDROID_SOCKET_PREFIX = "ANDROID_SOCKET_"; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int LOG_BOOT_PROGRESS_PRELOAD_START = 3020; 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int LOG_BOOT_PROGRESS_PRELOAD_END = 3030; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** when preloading, GC after allocating this many bytes */ 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int PRELOAD_GC_THRESHOLD = 50000; 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 81c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath private static final String ABI_LIST_ARG = "--abi-list="; 82c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath 83c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath private static final String SOCKET_NAME_ARG = "--socket-name="; 840b3533ae838811d15afb1017144dfbf7c41df4a8Barry Hayes 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static LocalServerSocket sServerSocket; 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to pre-load resources. We hold a global reference on it so it 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * never gets destroyed. 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static Resources mResources; 92e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The number of times that the main Zygote loop 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * should run before calling gc() again. 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int GC_LOOP_COUNT = 10; 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The name of a resource file that contains classes to preload. 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final String PRELOADED_CLASSES = "preloaded-classes"; 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Controls whether we should preload resources during zygote init. */ 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PRELOAD_RESOURCES = true; 106599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden 107599c918d9794b51992de85b42befa0c71d9ec07fAndy McFadden /** 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes a static "main(argv[]) method on class "className". 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Converts various failing exceptions into RuntimeExceptions, with 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the assumption that they will then cause the VM instance to exit. 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param loader class loader to use 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param className Fully-qualified class name 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param argv Argument vector for main() 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static void invokeStaticMain(ClassLoader loader, 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String className, String[] argv) 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws ZygoteInit.MethodAndArgsCaller { 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Class<?> cl; 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cl = loader.loadClass(className); 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (ClassNotFoundException ex) { 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Missing class when invoking static main " + className, 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ex); 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Method m; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m = cl.getMethod("main", new Class[] { String[].class }); 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (NoSuchMethodException ex) { 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Missing static main on " + className, ex); 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (SecurityException ex) { 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Problem getting static main on " + className, ex); 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int modifiers = m.getModifiers(); 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (! (Modifier.isStatic(modifiers) && Modifier.isPublic(modifiers))) { 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Main method is not public and static on " + className); 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This throw gets caught in ZygoteInit.main(), which responds 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * by invoking the exception's run() method. This arrangement 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clears up all the stack frames that were required in setting 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * up the process. 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ZygoteInit.MethodAndArgsCaller(m, argv); 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Registers a server socket for zygote command connections 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws RuntimeException when open fails 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 160c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath private static void registerZygoteSocket(String socketName) { 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sServerSocket == null) { 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int fileDesc; 163c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath final String fullSocketName = ANDROID_SOCKET_PREFIX + socketName; 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 165c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath String env = System.getenv(fullSocketName); 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fileDesc = Integer.parseInt(env); 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (RuntimeException ex) { 168c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath throw new RuntimeException(fullSocketName + " unset or invalid", ex); 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sServerSocket = new LocalServerSocket( 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createFileDescriptor(fileDesc)); 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex) { 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Error binding to local socket '" + fileDesc + "'", ex); 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Waits for and accepts a single command connection. Throws 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * RuntimeException on failure. 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 185c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath private static ZygoteConnection acceptCommandPeer(String abiList) { 186e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee try { 187c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath return new ZygoteConnection(sServerSocket.accept(), abiList); 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex) { 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "IOException during accept()", ex); 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Close and clean up zygote sockets. Called on shutdown and on the 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * child's exit path. 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static void closeServerSocket() { 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sServerSocket != null) { 20102f042ddd9ddf47ef88c4f174eb19a9bee296a45Dave Platt FileDescriptor fd = sServerSocket.getFileDescriptor(); 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sServerSocket.close(); 20302f042ddd9ddf47ef88c4f174eb19a9bee296a45Dave Platt if (fd != null) { 2049a76e9ba1adbdf7cc431b1e6fe454cf0c5d900deBill Yi Os.close(fd); 20502f042ddd9ddf47ef88c4f174eb19a9bee296a45Dave Platt } 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex) { 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "Zygote: error closing sockets", ex); 2099a76e9ba1adbdf7cc431b1e6fe454cf0c5d900deBill Yi } catch (ErrnoException ex) { 21002f042ddd9ddf47ef88c4f174eb19a9bee296a45Dave Platt Log.e(TAG, "Zygote: error closing descriptor", ex); 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sServerSocket = null; 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21689d4c897a0e1bc06688bcb1fd39913ece81fe05fDave Platt /** 21789d4c897a0e1bc06688bcb1fd39913ece81fe05fDave Platt * Return the server socket's underlying file descriptor, so that 21889d4c897a0e1bc06688bcb1fd39913ece81fe05fDave Platt * ZygoteConnection can pass it to the native code for proper 21989d4c897a0e1bc06688bcb1fd39913ece81fe05fDave Platt * closure after a child process is forked off. 22089d4c897a0e1bc06688bcb1fd39913ece81fe05fDave Platt */ 22189d4c897a0e1bc06688bcb1fd39913ece81fe05fDave Platt 22289d4c897a0e1bc06688bcb1fd39913ece81fe05fDave Platt static FileDescriptor getServerSocketFileDescriptor() { 22389d4c897a0e1bc06688bcb1fd39913ece81fe05fDave Platt return sServerSocket.getFileDescriptor(); 22489d4c897a0e1bc06688bcb1fd39913ece81fe05fDave Platt } 22589d4c897a0e1bc06688bcb1fd39913ece81fe05fDave Platt 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int UNPRIVILEGED_UID = 9999; 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int UNPRIVILEGED_GID = 9999; 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ROOT_UID = 0; 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ROOT_GID = 0; 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets effective user ID. 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void setEffectiveUser(int uid) { 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int errno = setreuid(ROOT_UID, uid); 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (errno != 0) { 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "setreuid() failed. errno: " + errno); 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets effective group ID. 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void setEffectiveGroup(int gid) { 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int errno = setregid(ROOT_GID, gid); 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (errno != 0) { 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "setregid() failed. errno: " + errno); 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2520c2313dc4f4bfaf6aa0506df4c54f25591a9e4c7Jeff Brown static void preload() { 2539a76e9ba1adbdf7cc431b1e6fe454cf0c5d900deBill Yi Log.d(TAG, "begin preload"); 2540c2313dc4f4bfaf6aa0506df4c54f25591a9e4c7Jeff Brown preloadClasses(); 2550c2313dc4f4bfaf6aa0506df4c54f25591a9e4c7Jeff Brown preloadResources(); 25674c691221b620d74eafff315bf7c8ed8c4b58f3aRomain Guy preloadOpenGL(); 2576c9af96de59ab2feebe3d0165548591c4f632bc5Brian Carlstrom preloadSharedLibraries(); 25808cfaf672604422dd355d6703aec78f3aa5ee74eTorne (Richard Coles) // Ask the WebViewFactory to do any initialization that must run in the zygote process, 25908cfaf672604422dd355d6703aec78f3aa5ee74eTorne (Richard Coles) // for memory sharing purposes. 26008cfaf672604422dd355d6703aec78f3aa5ee74eTorne (Richard Coles) WebViewFactory.prepareWebViewInZygote(); 2619a76e9ba1adbdf7cc431b1e6fe454cf0c5d900deBill Yi Log.d(TAG, "end preload"); 26274c691221b620d74eafff315bf7c8ed8c4b58f3aRomain Guy } 26374c691221b620d74eafff315bf7c8ed8c4b58f3aRomain Guy 2646c9af96de59ab2feebe3d0165548591c4f632bc5Brian Carlstrom private static void preloadSharedLibraries() { 2656c9af96de59ab2feebe3d0165548591c4f632bc5Brian Carlstrom Log.i(TAG, "Preloading shared libraries..."); 2666c9af96de59ab2feebe3d0165548591c4f632bc5Brian Carlstrom System.loadLibrary("android"); 2676c9af96de59ab2feebe3d0165548591c4f632bc5Brian Carlstrom System.loadLibrary("compiler_rt"); 2686c9af96de59ab2feebe3d0165548591c4f632bc5Brian Carlstrom System.loadLibrary("jnigraphics"); 2696c9af96de59ab2feebe3d0165548591c4f632bc5Brian Carlstrom } 2706c9af96de59ab2feebe3d0165548591c4f632bc5Brian Carlstrom 27174c691221b620d74eafff315bf7c8ed8c4b58f3aRomain Guy private static void preloadOpenGL() { 272c5e3638c06f30827cdc6eb0d987adb677e900487Romain Guy if (!SystemProperties.getBoolean(PROPERTY_DISABLE_OPENGL_PRELOADING, false)) { 273c5e3638c06f30827cdc6eb0d987adb677e900487Romain Guy EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY); 274c5e3638c06f30827cdc6eb0d987adb677e900487Romain Guy } 2750c2313dc4f4bfaf6aa0506df4c54f25591a9e4c7Jeff Brown } 2760c2313dc4f4bfaf6aa0506df4c54f25591a9e4c7Jeff Brown 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Performs Zygote process initialization. Loads and initializes 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * commonly used classes. 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Most classes only cause a few hundred bytes to be allocated, but 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a few will allocate a dozen Kbytes (in one case, 500+K). 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void preloadClasses() { 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final VMRuntime runtime = VMRuntime.getRuntime(); 286e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee 287dc7bf5d8bff86bed7947806c81a28aff5e9a8c3eAndy McFadden InputStream is = ClassLoader.getSystemClassLoader().getResourceAsStream( 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PRELOADED_CLASSES); 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (is == null) { 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "Couldn't find " + PRELOADED_CLASSES + "."); 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i(TAG, "Preloading classes..."); 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long startTime = SystemClock.uptimeMillis(); 294e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Drop root perms while running static initializers. 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setEffectiveGroup(UNPRIVILEGED_GID); 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setEffectiveUser(UNPRIVILEGED_UID); 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Alter the target heap utilization. With explicit GCs this 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is not likely to have any effect. 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float defaultUtilization = runtime.getTargetHeapUtilization(); 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.setTargetHeapUtilization(0.8f); 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Start with a clean slate. 30508065b9f09ead8895d97b2971622af8c179e1768Brian Carlstrom System.gc(); 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startAllocCounting(); 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 310e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee BufferedReader br 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new BufferedReader(new InputStreamReader(is), 256); 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = 0; 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String line; 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while ((line = br.readLine()) != null) { 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Skip comments and blank lines. 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project line = line.trim(); 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (line.startsWith("#") || line.equals("")) { 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 32343a17654cf4bfe7f1ec22bd8b7b32daccdf27c09Joe Onorato if (false) { 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.v(TAG, "Preloading " + line + "..."); 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Class.forName(line); 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Debug.getGlobalAllocSize() > PRELOAD_GC_THRESHOLD) { 32843a17654cf4bfe7f1ec22bd8b7b32daccdf27c09Joe Onorato if (false) { 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.v(TAG, 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project " GC at " + Debug.getGlobalAllocSize()); 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33208065b9f09ead8895d97b2971622af8c179e1768Brian Carlstrom System.gc(); 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.resetGlobalAllocSize(); 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project count++; 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (ClassNotFoundException e) { 338e2417541b4c1c0954295dd77d6c95512f99a9f91Jesse Wilson Log.w(TAG, "Class not found for preloading: " + line); 339ad13bd5c0d83dd87599dbca11b93cd1ea413006dBrian Carlstrom } catch (UnsatisfiedLinkError e) { 340ad13bd5c0d83dd87599dbca11b93cd1ea413006dBrian Carlstrom Log.w(TAG, "Problem preloading " + line + ": " + e); 3412e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee } catch (Throwable t) { 3422e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee Log.e(TAG, "Error preloading " + line + ".", t); 3432e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee if (t instanceof Error) { 3442e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee throw (Error) t; 3452e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee } 3462e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee if (t instanceof RuntimeException) { 3472e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee throw (RuntimeException) t; 3482e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee } 3492e93f65cab0b4b21a1285b83e985559325e87a3aBob Lee throw new RuntimeException(t); 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i(TAG, "...preloaded " + count + " classes in " 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + (SystemClock.uptimeMillis()-startTime) + "ms."); 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException e) { 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "Error reading " + PRELOADED_CLASSES + ".", e); 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } finally { 35846703b099516c383a6882815bcf9cd4df0ec538dBrian Carlstrom IoUtils.closeQuietly(is); 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore default. 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.setTargetHeapUtilization(defaultUtilization); 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3626c3baf12e0a6417177793a2e7e95d22721203813Brian Carlstrom // Fill in dex caches with classes, fields, and methods brought in by preloading. 3636c3baf12e0a6417177793a2e7e95d22721203813Brian Carlstrom runtime.preloadDexCaches(); 3646c3baf12e0a6417177793a2e7e95d22721203813Brian Carlstrom 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopAllocCounting(); 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Bring back root. We'll need it later. 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setEffectiveUser(ROOT_UID); 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setEffectiveGroup(ROOT_GID); 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Load in commonly used resources, so they can be shared across 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * processes. 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * These tend to be a few Kbytes, but are frequently in the 20-40K 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * range, and occasionally even larger. 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void preloadResources() { 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final VMRuntime runtime = VMRuntime.getRuntime(); 383e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startAllocCounting(); 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 38608065b9f09ead8895d97b2971622af8c179e1768Brian Carlstrom System.gc(); 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResources = Resources.getSystem(); 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResources.startPreloading(); 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PRELOAD_RESOURCES) { 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i(TAG, "Preloading resources..."); 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long startTime = SystemClock.uptimeMillis(); 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray ar = mResources.obtainTypedArray( 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.array.preloaded_drawables); 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int N = preloadDrawables(runtime, ar); 39714577c4df57004131174fbe435031a18f3e7996bJeff Brown ar.recycle(); 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i(TAG, "...preloaded " + N + " resources in " 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + (SystemClock.uptimeMillis()-startTime) + "ms."); 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startTime = SystemClock.uptimeMillis(); 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ar = mResources.obtainTypedArray( 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.array.preloaded_color_state_lists); 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project N = preloadColorStateLists(runtime, ar); 40514577c4df57004131174fbe435031a18f3e7996bJeff Brown ar.recycle(); 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i(TAG, "...preloaded " + N + " resources in " 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + (SystemClock.uptimeMillis()-startTime) + "ms."); 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResources.finishPreloading(); 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (RuntimeException e) { 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.w(TAG, "Failure preloading resources", e); 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } finally { 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopAllocCounting(); 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static int preloadColorStateLists(VMRuntime runtime, TypedArray ar) { 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int N = ar.length(); 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i=0; i<N; i++) { 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Debug.getGlobalAllocSize() > PRELOAD_GC_THRESHOLD) { 42143a17654cf4bfe7f1ec22bd8b7b32daccdf27c09Joe Onorato if (false) { 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.v(TAG, " GC at " + Debug.getGlobalAllocSize()); 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42408065b9f09ead8895d97b2971622af8c179e1768Brian Carlstrom System.gc(); 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.resetGlobalAllocSize(); 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int id = ar.getResourceId(i, 0); 42943a17654cf4bfe7f1ec22bd8b7b32daccdf27c09Joe Onorato if (false) { 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.v(TAG, "Preloading resource #" + Integer.toHexString(id)); 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (id != 0) { 433dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn if (mResources.getColorStateList(id) == null) { 434dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn throw new IllegalArgumentException( 435dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn "Unable to find preloaded color resource #0x" 436dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn + Integer.toHexString(id) 437dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn + " (" + ar.getString(i) + ")"); 438dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn } 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return N; 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static int preloadDrawables(VMRuntime runtime, TypedArray ar) { 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int N = ar.length(); 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i=0; i<N; i++) { 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Debug.getGlobalAllocSize() > PRELOAD_GC_THRESHOLD) { 44943a17654cf4bfe7f1ec22bd8b7b32daccdf27c09Joe Onorato if (false) { 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.v(TAG, " GC at " + Debug.getGlobalAllocSize()); 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45208065b9f09ead8895d97b2971622af8c179e1768Brian Carlstrom System.gc(); 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.resetGlobalAllocSize(); 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int id = ar.getResourceId(i, 0); 45743a17654cf4bfe7f1ec22bd8b7b32daccdf27c09Joe Onorato if (false) { 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.v(TAG, "Preloading resource #" + Integer.toHexString(id)); 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (id != 0) { 461dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn if (mResources.getDrawable(id) == null) { 462dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn throw new IllegalArgumentException( 463dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn "Unable to find preloaded drawable resource #0x" 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(id) 465dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn + " (" + ar.getString(i) + ")"); 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return N; 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Runs several special GCs to try to clean up a few generations of 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * softly- and final-reachable objects, along with any other garbage. 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is only useful just before a fork(). 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /*package*/ static void gc() { 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final VMRuntime runtime = VMRuntime.getRuntime(); 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* runFinalizationSync() lets finalizers be called in Zygote, 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which doesn't have a HeapWorker thread. 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48308065b9f09ead8895d97b2971622af8c179e1768Brian Carlstrom System.gc(); 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 48508065b9f09ead8895d97b2971622af8c179e1768Brian Carlstrom System.gc(); 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 48708065b9f09ead8895d97b2971622af8c179e1768Brian Carlstrom System.gc(); 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project runtime.runFinalizationSync(); 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Finish remaining work for the newly forked system server process. 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void handleSystemServerProcess( 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ZygoteConnection.Arguments parsedArgs) 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws ZygoteInit.MethodAndArgsCaller { 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project closeServerSocket(); 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50090960e87ecae696f73ae18e46c2f003fc3f592ccMike Lockwood // set umask to 0077 so new files and directories will default to owner-only permissions. 501860c5911a2437ab2543614e138c98553d0d4ebf7Elliott Hughes Os.umask(S_IRWXG | S_IRWXO); 50290960e87ecae696f73ae18e46c2f003fc3f592ccMike Lockwood 503ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown if (parsedArgs.niceName != null) { 504ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown Process.setArgV0(parsedArgs.niceName); 505ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown } 506ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown 50729564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath final String systemServerClasspath = Os.getenv("SYSTEMSERVERCLASSPATH"); 50829564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath if (systemServerClasspath != null) { 50929564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath performSystemServerDexOpt(systemServerClasspath); 51029564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath } 51129564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath 512ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown if (parsedArgs.invokeWith != null) { 51329564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath String[] args = parsedArgs.remainingArgs; 51429564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath // If we have a non-null system server class path, we'll have to duplicate the 51529564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath // existing arguments and append the classpath to it. ART will handle the classpath 51629564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath // correctly when we exec a new process. 51729564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath if (systemServerClasspath != null) { 51829564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath String[] amendedArgs = new String[args.length + 2]; 51929564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath amendedArgs[0] = "-cp"; 52029564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath amendedArgs[1] = systemServerClasspath; 52129564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath System.arraycopy(parsedArgs.remainingArgs, 0, amendedArgs, 2, parsedArgs.remainingArgs.length); 52229564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath } 52329564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath 524ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown WrapperInit.execApplication(parsedArgs.invokeWith, 525e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes parsedArgs.niceName, parsedArgs.targetSdkVersion, 52629564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath null, args); 527ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown } else { 52829564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath ClassLoader cl = null; 52929564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath if (systemServerClasspath != null) { 53029564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath cl = new PathClassLoader(systemServerClasspath, ClassLoader.getSystemClassLoader()); 53129564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath Thread.currentThread().setContextClassLoader(cl); 53229564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath } 53329564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath 534ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown /* 535ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown * Pass the remaining arguments to SystemServer. 536ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown */ 53729564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath RuntimeInit.zygoteInit(parsedArgs.targetSdkVersion, parsedArgs.remainingArgs, cl); 538ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown } 539ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* should never reach here */ 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54429564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath * Performs dex-opt on the elements of {@code classPath}, if needed. We 54529564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath * choose the instruction set of the current runtime. 54629564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath */ 54729564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath private static void performSystemServerDexOpt(String classPath) { 54829564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath final String[] classPathElements = classPath.split(":"); 54929564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath final InstallerConnection installer = new InstallerConnection(); 55029564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath final String instructionSet = VMRuntime.getRuntime().vmInstructionSet(); 55129564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath 55229564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath try { 55329564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath for (String classPathElement : classPathElements) { 55429564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath final byte dexopt = DexFile.isDexOptNeededInternal(classPathElement, "*", instructionSet, 55529564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath false /* defer */); 55629564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath if (dexopt == DexFile.DEXOPT_NEEDED) { 55729564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath installer.dexopt(classPathElement, Process.SYSTEM_UID, false, instructionSet); 55829564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath } else if (dexopt == DexFile.PATCHOAT_NEEDED) { 55929564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath installer.patchoat(classPathElement, Process.SYSTEM_UID, false, instructionSet); 56029564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath } 56129564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath } 56229564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath } catch (IOException ioe) { 56329564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath throw new RuntimeException("Error starting system_server", ioe); 56429564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath } finally { 56529564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath installer.disconnect(); 56629564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath } 56729564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath } 56829564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath 56929564cd24589867f653cd22cabbaac6493cfc530Narayan Kamath /** 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Prepare the arguments and fork for the system server process. 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath private static boolean startSystemServer(String abiList, String socketName) 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws MethodAndArgsCaller, RuntimeException { 57448a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin long capabilities = posixCapabilitiesAsBits( 57549cbafad9beb6041aaee773f75473fdb5022888eDaniel Leung OsConstants.CAP_BLOCK_SUSPEND, 57648a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin OsConstants.CAP_KILL, 57748a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin OsConstants.CAP_NET_ADMIN, 57848a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin OsConstants.CAP_NET_BIND_SERVICE, 57948a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin OsConstants.CAP_NET_BROADCAST, 58048a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin OsConstants.CAP_NET_RAW, 58148a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin OsConstants.CAP_SYS_MODULE, 58248a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin OsConstants.CAP_SYS_NICE, 58348a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin OsConstants.CAP_SYS_RESOURCE, 58448a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin OsConstants.CAP_SYS_TIME, 58548a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin OsConstants.CAP_SYS_TTY_CONFIG 58648a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin ); 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Hardcoded command line to start the system server */ 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String args[] = { 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "--setuid=1000", 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "--setgid=1000", 591184a0100abc431fc3d6d8dd1b20212b84958cadaJeff Sharkey "--setgroups=1001,1002,1003,1004,1005,1006,1007,1008,1009,1010,1018,1032,3001,3002,3003,3006,3007", 59248a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin "--capabilities=" + capabilities + "," + capabilities, 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "--runtime-init", 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "--nice-name=system_server", 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "com.android.server.SystemServer", 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ZygoteConnection.Arguments parsedArgs = null; 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int pid; 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project parsedArgs = new ZygoteConnection.Arguments(args); 603ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown ZygoteConnection.applyDebuggerSystemProperty(parsedArgs); 604ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown ZygoteConnection.applyInvokeWithSystemProperty(parsedArgs); 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Request to fork the system server process */ 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pid = Zygote.forkSystemServer( 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project parsedArgs.uid, parsedArgs.gid, 609e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes parsedArgs.gids, 610e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes parsedArgs.debugFlags, 611e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes null, 6121b4c7966b15382e9ffb2bfe6468dcef0b6d090b6Andy McFadden parsedArgs.permittedCapabilities, 6131b4c7966b15382e9ffb2bfe6468dcef0b6d090b6Andy McFadden parsedArgs.effectiveCapabilities); 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IllegalArgumentException ex) { 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException(ex); 616e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee } 617e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* For child process */ 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (pid == 0) { 62064cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath if (hasSecondZygote(abiList)) { 62164cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath waitForSecondaryZygote(socketName); 62264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } 62364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handleSystemServerProcess(parsedArgs); 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63048a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin /** 63148a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin * Gets the bit array representation of the provided list of POSIX capabilities. 63248a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin */ 63348a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin private static long posixCapabilitiesAsBits(int... capabilities) { 63448a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin long result = 0; 63548a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin for (int capability : capabilities) { 63648a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin if ((capability < 0) || (capability > OsConstants.CAP_LAST_CAP)) { 63748a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin throw new IllegalArgumentException(String.valueOf(capability)); 63848a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin } 63948a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin result |= (1L << capability); 64048a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin } 64148a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin return result; 64248a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin } 64348a06e740782184bd126ab743150b474abc9e6a4Alex Klyubin 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static void main(String argv[]) { 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 646e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee // Start profiling the zygote initialization. 647e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee SamplingProfilerIntegration.start(); 648e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee 649c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath boolean startSystemServer = false; 650c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath String socketName = "zygote"; 651c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath String abiList = null; 652c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath for (int i = 1; i < argv.length; i++) { 653c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath if ("start-system-server".equals(argv[i])) { 654c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath startSystemServer = true; 655c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath } else if (argv[i].startsWith(ABI_LIST_ARG)) { 656c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath abiList = argv[i].substring(ABI_LIST_ARG.length()); 657c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath } else if (argv[i].startsWith(SOCKET_NAME_ARG)) { 658c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath socketName = argv[i].substring(SOCKET_NAME_ARG.length()); 659c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath } else { 660c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath throw new RuntimeException("Unknown command line argument: " + argv[i]); 661c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath } 662c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath } 663c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath 664c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath if (abiList == null) { 665c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath throw new RuntimeException("No ABI list supplied."); 666c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath } 667c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath 668c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath registerZygoteSocket(socketName); 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EventLog.writeEvent(LOG_BOOT_PROGRESS_PRELOAD_START, 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SystemClock.uptimeMillis()); 6710c2313dc4f4bfaf6aa0506df4c54f25591a9e4c7Jeff Brown preload(); 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EventLog.writeEvent(LOG_BOOT_PROGRESS_PRELOAD_END, 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SystemClock.uptimeMillis()); 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6751751086360056bc60d00f2ed2988bc82be9e7bd9Brian Carlstrom // Finish profiling the zygote initialization. 6761751086360056bc60d00f2ed2988bc82be9e7bd9Brian Carlstrom SamplingProfilerIntegration.writeZygoteSnapshot(); 677e540833fdff4d58e37c9ba859388e24e2945ed45Bob Lee 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do an initial gc to clean up after startup 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gc(); 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6816ad0452e6301c0650f58f3991f7c523f6f279ddbJamie Gennis // Disable tracing so that forked processes do not inherit stale tracing tags from 6826ad0452e6301c0650f58f3991f7c523f6f279ddbJamie Gennis // Zygote. 6836ad0452e6301c0650f58f3991f7c523f6f279ddbJamie Gennis Trace.setTracingEnabled(false); 6846ad0452e6301c0650f58f3991f7c523f6f279ddbJamie Gennis 685c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath if (startSystemServer) { 68664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath startSystemServer(abiList, socketName); 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i(TAG, "Accepting command socket connections"); 690c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath runSelectLoop(abiList); 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project closeServerSocket(); 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (MethodAndArgsCaller caller) { 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project caller.run(); 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (RuntimeException ex) { 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "Zygote died with exception", ex); 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project closeServerSocket(); 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw ex; 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 70364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath * Return {@code true} if this device configuration has another zygote. 70464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath * 70564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath * We determine this by comparing the device ABI list with this zygotes 70664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath * list. If this zygote supports all ABIs this device supports, there won't 70764cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath * be another zygote. 70864cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath */ 70964cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath private static boolean hasSecondZygote(String abiList) { 71064cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath return !SystemProperties.get("ro.product.cpu.abilist").equals(abiList); 71164cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } 71264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath 71364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath private static void waitForSecondaryZygote(String socketName) { 71464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath String otherZygoteName = Process.ZYGOTE_SOCKET.equals(socketName) ? 71564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath Process.SECONDARY_ZYGOTE_SOCKET : Process.ZYGOTE_SOCKET; 71664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath while (true) { 71764cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath try { 71864cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath final Process.ZygoteState zs = Process.ZygoteState.connect(otherZygoteName); 71964cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath zs.close(); 72064cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath break; 72164cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } catch (IOException ioe) { 72264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath Log.w(TAG, "Got error connecting to zygote, retrying. msg= " + ioe.getMessage()); 72364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } 72464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath 72564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath try { 72664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath Thread.sleep(1000); 72764cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } catch (InterruptedException ie) { 72864cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } 72964cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } 73064cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } 73164cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath 73264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath /** 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Runs the zygote process's select loop. Accepts new connections as 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * they happen, and reads commands from connections one spawn-request's 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * worth at a time. 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws MethodAndArgsCaller in a child process when a main() should 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be executed. 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 740c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath private static void runSelectLoop(String abiList) throws MethodAndArgsCaller { 741cae3d9f0ab2756e3659efc7a08830d2d7b43a05eNick Kralevich ArrayList<FileDescriptor> fds = new ArrayList<FileDescriptor>(); 742cae3d9f0ab2756e3659efc7a08830d2d7b43a05eNick Kralevich ArrayList<ZygoteConnection> peers = new ArrayList<ZygoteConnection>(); 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project FileDescriptor[] fdArray = new FileDescriptor[4]; 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fds.add(sServerSocket.getFileDescriptor()); 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project peers.add(null); 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int loopCount = GC_LOOP_COUNT; 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (true) { 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Call gc() before we block in select(). 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * It's work that has to be done anyway, and it's better 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid making every child do it. It will also 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * madvise() any free memory as a side-effect. 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Don't call it every time, because walking the entire 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * heap is a lot of overhead to free a few hundred bytes. 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (loopCount <= 0) { 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gc(); 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project loopCount = GC_LOOP_COUNT; 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project loopCount--; 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fdArray = fds.toArray(fdArray); 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = selectReadable(fdArray); 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex) { 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Error in select()", ex); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index < 0) { 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Error in select()"); 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (index == 0) { 779c41638cb759ce569630ffae4c5c4cdee1b0f3b82Narayan Kamath ZygoteConnection newPeer = acceptCommandPeer(abiList); 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project peers.add(newPeer); 781629dc1801331ce89e8ee0ff7ee5dcde1d7512417Anwar Ghuloum fds.add(newPeer.getFileDescriptor()); 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean done; 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project done = peers.get(index).runOnce(); 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (done) { 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project peers.remove(index); 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fds.remove(index); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Linux syscall "setreuid()" 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param ruid real uid 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param euid effective uid 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return 0 on success, non-zero errno on fail 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native int setreuid(int ruid, int euid); 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Linux syscall "setregid()" 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rgid real gid 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param egid effective gid 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return 0 on success, non-zero errno on fail 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native int setregid(int rgid, int egid); 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes the linux syscall "setpgid" 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pid pid to change 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pgid new process group of pid 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return 0 on success or non-zero errno on fail 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native int setpgid(int pid, int pgid); 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes the linux syscall "getpgid" 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pid pid to query 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return pgid of pid in question 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException on error 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native int getpgid(int pid) throws IOException; 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes the syscall dup2() to copy the specified descriptors into 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * stdin, stdout, and stderr. The existing stdio descriptors will be 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * closed and errors during close will be ignored. The specified 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * descriptors will also remain open at their original descriptor numbers, 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * so the caller may want to close the original descriptors. 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param in new stdin 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param out new stdout 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param err new stderr 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native void reopenStdio(FileDescriptor in, 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project FileDescriptor out, FileDescriptor err) throws IOException; 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Toggles the close-on-exec flag for the specified file descriptor. 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param fd non-null; file descriptor 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param flag desired close-on-exec flag state 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native void setCloseOnExec(FileDescriptor fd, boolean flag) 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IOException; 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes select() on the provider array of file descriptors (selecting 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for readability only). Array elements of null are ignored. 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param fds non-null; array of readable file descriptors 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return index of descriptor that is now readable or -1 for empty array. 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException if an error occurs 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native int selectReadable(FileDescriptor[] fds) throws IOException; 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates a file descriptor from an int fd. 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param fd integer OS file descriptor 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return non-null; FileDescriptor instance 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IOException if fd is invalid 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native FileDescriptor createFileDescriptor(int fd) 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IOException; 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Class not instantiable. 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ZygoteInit() { 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper exception class which holds a method and arguments and 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * can call them. This is used as part of a trampoline to get rid of 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the initial process setup stack frames. 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class MethodAndArgsCaller extends Exception 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project implements Runnable { 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** method to call */ 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Method mMethod; 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** argument array */ 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final String[] mArgs; 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public MethodAndArgsCaller(Method method, String[] args) { 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMethod = method; 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mArgs = args; 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMethod.invoke(null, new Object[] { mArgs }); 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IllegalAccessException ex) { 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException(ex); 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (InvocationTargetException ex) { 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Throwable cause = ex.getCause(); 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (cause instanceof RuntimeException) { 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw (RuntimeException) cause; 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (cause instanceof Error) { 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw (Error) cause; 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException(ex); 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 914