| /* |
| * Copyright (C) 2006 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.internal.os; |
| |
| import android.app.ActivityManagerNative; |
| import android.app.ApplicationErrorReport; |
| import android.os.Build; |
| import android.os.Debug; |
| import android.os.IBinder; |
| import android.os.Process; |
| import android.os.SystemProperties; |
| import android.util.Config; |
| import android.util.Log; |
| import android.util.Slog; |
| |
| import com.android.internal.logging.AndroidConfig; |
| |
| import dalvik.system.VMRuntime; |
| |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Modifier; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import java.util.logging.LogManager; |
| import java.util.TimeZone; |
| |
| import org.apache.harmony.luni.internal.util.TimezoneGetter; |
| |
| /** |
| * Main entry point for runtime initialization. Not for |
| * public consumption. |
| * @hide |
| */ |
| public class RuntimeInit { |
| private final static String TAG = "AndroidRuntime"; |
| |
| /** true if commonInit() has been called */ |
| private static boolean initialized; |
| |
| private static IBinder mApplicationObject; |
| |
| private static volatile boolean mCrashing = false; |
| |
| /** |
| * Use this to log a message when a thread exits due to an uncaught |
| * exception. The framework catches these for the main threads, so |
| * this should only matter for threads created by applications. |
| */ |
| private static class UncaughtHandler implements Thread.UncaughtExceptionHandler { |
| public void uncaughtException(Thread t, Throwable e) { |
| try { |
| // Don't re-enter -- avoid infinite loops if crash-reporting crashes. |
| if (mCrashing) return; |
| mCrashing = true; |
| |
| if (mApplicationObject == null) { |
| Slog.e(TAG, "*** FATAL EXCEPTION IN SYSTEM PROCESS: " + t.getName(), e); |
| } else { |
| Slog.e(TAG, "FATAL EXCEPTION: " + t.getName(), e); |
| } |
| |
| // Bring up crash dialog, wait for it to be dismissed |
| ActivityManagerNative.getDefault().handleApplicationCrash( |
| mApplicationObject, new ApplicationErrorReport.CrashInfo(e)); |
| } catch (Throwable t2) { |
| try { |
| Slog.e(TAG, "Error reporting crash", t2); |
| } catch (Throwable t3) { |
| // Even Slog.e() fails! Oh well. |
| } |
| } finally { |
| // Try everything to make sure this process goes away. |
| Process.killProcess(Process.myPid()); |
| System.exit(10); |
| } |
| } |
| } |
| |
| private static final void commonInit() { |
| if (Config.LOGV) Slog.d(TAG, "Entered RuntimeInit!"); |
| |
| /* set default handler; this applies to all threads in the VM */ |
| Thread.setDefaultUncaughtExceptionHandler(new UncaughtHandler()); |
| |
| int hasQwerty = getQwertyKeyboard(); |
| |
| if (Config.LOGV) Slog.d(TAG, ">>>>> qwerty keyboard = " + hasQwerty); |
| if (hasQwerty == 1) { |
| System.setProperty("qwerty", "1"); |
| } |
| |
| /* |
| * Install a TimezoneGetter subclass for ZoneInfo.db |
| */ |
| TimezoneGetter.setInstance(new TimezoneGetter() { |
| @Override |
| public String getId() { |
| return SystemProperties.get("persist.sys.timezone"); |
| } |
| }); |
| TimeZone.setDefault(null); |
| |
| /* |
| * Sets handler for java.util.logging to use Android log facilities. |
| * The odd "new instance-and-then-throw-away" is a mirror of how |
| * the "java.util.logging.config.class" system property works. We |
| * can't use the system property here since the logger has almost |
| * certainly already been initialized. |
| */ |
| LogManager.getLogManager().reset(); |
| new AndroidConfig(); |
| |
| /* |
| * Sets the default HTTP User-Agent used by HttpURLConnection. |
| */ |
| String userAgent = getDefaultUserAgent(); |
| System.setProperty("http.agent", userAgent); |
| |
| /* |
| * If we're running in an emulator launched with "-trace", put the |
| * VM into emulator trace profiling mode so that the user can hit |
| * F9/F10 at any time to capture traces. This has performance |
| * consequences, so it's not something you want to do always. |
| */ |
| String trace = SystemProperties.get("ro.kernel.android.tracing"); |
| if (trace.equals("1")) { |
| Slog.i(TAG, "NOTE: emulator trace profiling enabled"); |
| Debug.enableEmulatorTraceOutput(); |
| } |
| |
| initialized = true; |
| } |
| |
| /** |
| * Returns an HTTP user agent of the form |
| * "Dalvik/1.1.0 (Linux; U; Android Eclair Build/MASTER)". |
| */ |
| private static String getDefaultUserAgent() { |
| StringBuilder result = new StringBuilder(64); |
| result.append("Dalvik/"); |
| result.append(System.getProperty("java.vm.version")); // such as 1.1.0 |
| result.append(" (Linux; U; Android "); |
| |
| String version = Build.VERSION.RELEASE; // "1.0" or "3.4b5" |
| result.append(version.length() > 0 ? version : "1.0"); |
| |
| // add the model for the release build |
| if ("REL".equals(Build.VERSION.CODENAME)) { |
| String model = Build.MODEL; |
| if (model.length() > 0) { |
| result.append("; "); |
| result.append(model); |
| } |
| } |
| String id = Build.ID; // "MASTER" or "M4-rc20" |
| if (id.length() > 0) { |
| result.append(" Build/"); |
| result.append(id); |
| } |
| result.append(")"); |
| return result.toString(); |
| } |
| |
| /** |
| * Invokes a static "main(argv[]) method on class "className". |
| * Converts various failing exceptions into RuntimeExceptions, with |
| * the assumption that they will then cause the VM instance to exit. |
| * |
| * @param className Fully-qualified class name |
| * @param argv Argument vector for main() |
| */ |
| private static void invokeStaticMain(String className, String[] argv) |
| throws ZygoteInit.MethodAndArgsCaller { |
| |
| // We want to be fairly aggressive about heap utilization, to avoid |
| // holding on to a lot of memory that isn't needed. |
| VMRuntime.getRuntime().setTargetHeapUtilization(0.75f); |
| |
| Class<?> cl; |
| |
| try { |
| cl = Class.forName(className); |
| } catch (ClassNotFoundException ex) { |
| throw new RuntimeException( |
| "Missing class when invoking static main " + className, |
| ex); |
| } |
| |
| Method m; |
| try { |
| m = cl.getMethod("main", new Class[] { String[].class }); |
| } catch (NoSuchMethodException ex) { |
| throw new RuntimeException( |
| "Missing static main on " + className, ex); |
| } catch (SecurityException ex) { |
| throw new RuntimeException( |
| "Problem getting static main on " + className, ex); |
| } |
| |
| int modifiers = m.getModifiers(); |
| if (! (Modifier.isStatic(modifiers) && Modifier.isPublic(modifiers))) { |
| throw new RuntimeException( |
| "Main method is not public and static on " + className); |
| } |
| |
| /* |
| * This throw gets caught in ZygoteInit.main(), which responds |
| * by invoking the exception's run() method. This arrangement |
| * clears up all the stack frames that were required in setting |
| * up the process. |
| */ |
| throw new ZygoteInit.MethodAndArgsCaller(m, argv); |
| } |
| |
| public static final void main(String[] argv) { |
| commonInit(); |
| |
| /* |
| * Now that we're running in interpreted code, call back into native code |
| * to run the system. |
| */ |
| finishInit(); |
| |
| if (Config.LOGV) Slog.d(TAG, "Leaving RuntimeInit!"); |
| } |
| |
| public static final native void finishInit(); |
| |
| /** |
| * The main function called when started through the zygote process. This |
| * could be unified with main(), if the native code in finishInit() |
| * were rationalized with Zygote startup.<p> |
| * |
| * Current recognized args: |
| * <ul> |
| * <li> --nice-name=<i>nice name to appear in ps</i> |
| * <li> <code> [--] <start class name> <args> |
| * </ul> |
| * |
| * @param argv arg strings |
| */ |
| public static final void zygoteInit(String[] argv) |
| throws ZygoteInit.MethodAndArgsCaller { |
| // TODO: Doing this here works, but it seems kind of arbitrary. Find |
| // a better place. The goal is to set it up for applications, but not |
| // tools like am. |
| System.setOut(new AndroidPrintStream(Log.INFO, "System.out")); |
| System.setErr(new AndroidPrintStream(Log.WARN, "System.err")); |
| |
| commonInit(); |
| zygoteInitNative(); |
| |
| int curArg = 0; |
| for ( /* curArg */ ; curArg < argv.length; curArg++) { |
| String arg = argv[curArg]; |
| |
| if (arg.equals("--")) { |
| curArg++; |
| break; |
| } else if (!arg.startsWith("--")) { |
| break; |
| } else if (arg.startsWith("--nice-name=")) { |
| String niceName = arg.substring(arg.indexOf('=') + 1); |
| Process.setArgV0(niceName); |
| } |
| } |
| |
| if (curArg == argv.length) { |
| Slog.e(TAG, "Missing classname argument to RuntimeInit!"); |
| // let the process exit |
| return; |
| } |
| |
| // Remaining arguments are passed to the start class's static main |
| |
| String startClass = argv[curArg++]; |
| String[] startArgs = new String[argv.length - curArg]; |
| |
| System.arraycopy(argv, curArg, startArgs, 0, startArgs.length); |
| invokeStaticMain(startClass, startArgs); |
| } |
| |
| public static final native void zygoteInitNative(); |
| |
| /** |
| * Returns 1 if the computer is on. If the computer isn't on, the value returned by this method is undefined. |
| */ |
| public static final native int isComputerOn(); |
| |
| /** |
| * Turns the computer on if the computer is off. If the computer is on, the behavior of this method is undefined. |
| */ |
| public static final native void turnComputerOn(); |
| |
| /** |
| * |
| * @return 1 if the device has a qwerty keyboard |
| */ |
| public static native int getQwertyKeyboard(); |
| |
| /** |
| * Report a serious error in the current process. May or may not cause |
| * the process to terminate (depends on system settings). |
| * |
| * @param tag to record with the error |
| * @param t exception describing the error site and conditions |
| */ |
| public static void wtf(String tag, Throwable t) { |
| try { |
| if (ActivityManagerNative.getDefault().handleApplicationWtf( |
| mApplicationObject, tag, new ApplicationErrorReport.CrashInfo(t))) { |
| // The Activity Manager has already written us off -- now exit. |
| Process.killProcess(Process.myPid()); |
| System.exit(10); |
| } |
| } catch (Throwable t2) { |
| Slog.e(TAG, "Error reporting WTF", t2); |
| } |
| } |
| |
| /** Counter used to prevent reentrancy in {@link #reportException}. */ |
| private static final AtomicInteger sInReportException = new AtomicInteger(); |
| |
| /** |
| * Set the object identifying this application/process, for reporting VM |
| * errors. |
| */ |
| public static final void setApplicationObject(IBinder app) { |
| mApplicationObject = app; |
| } |
| |
| public static final IBinder getApplicationObject() { |
| return mApplicationObject; |
| } |
| |
| /** |
| * Enable debugging features. |
| */ |
| static { |
| // Register handlers for DDM messages. |
| android.ddm.DdmRegister.registerHandlers(); |
| } |
| } |