|  | /* | 
|  | * 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. | 
|  | */ | 
|  |  | 
|  | #define LOG_TAG "AndroidRuntime" | 
|  | //#define LOG_NDEBUG 0 | 
|  |  | 
|  | #include <android_runtime/AndroidRuntime.h> | 
|  | #include <binder/IBinder.h> | 
|  | #include <binder/IPCThreadState.h> | 
|  | #include <binder/IServiceManager.h> | 
|  | #include <utils/Log.h> | 
|  | #include <utils/misc.h> | 
|  | #include <binder/Parcel.h> | 
|  | #include <utils/threads.h> | 
|  | #include <cutils/properties.h> | 
|  |  | 
|  | #include <SkGraphics.h> | 
|  | #include <SkImageDecoder.h> | 
|  |  | 
|  | #include "jni.h" | 
|  | #include "JNIHelp.h" | 
|  | #include "JniInvocation.h" | 
|  | #include "android_util_Binder.h" | 
|  |  | 
|  | #include <stdio.h> | 
|  | #include <signal.h> | 
|  | #include <sys/stat.h> | 
|  | #include <sys/types.h> | 
|  | #include <signal.h> | 
|  | #include <dirent.h> | 
|  | #include <assert.h> | 
|  |  | 
|  |  | 
|  | using namespace android; | 
|  |  | 
|  | extern int register_android_os_Binder(JNIEnv* env); | 
|  | extern int register_android_os_Process(JNIEnv* env); | 
|  | extern int register_android_graphics_Bitmap(JNIEnv*); | 
|  | extern int register_android_graphics_BitmapFactory(JNIEnv*); | 
|  | extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*); | 
|  | extern int register_android_graphics_Camera(JNIEnv* env); | 
|  | extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env); | 
|  | extern int register_android_graphics_Graphics(JNIEnv* env); | 
|  | extern int register_android_graphics_Interpolator(JNIEnv* env); | 
|  | extern int register_android_graphics_MaskFilter(JNIEnv* env); | 
|  | extern int register_android_graphics_Movie(JNIEnv* env); | 
|  | extern int register_android_graphics_NinePatch(JNIEnv*); | 
|  | extern int register_android_graphics_PathEffect(JNIEnv* env); | 
|  | extern int register_android_graphics_Shader(JNIEnv* env); | 
|  | extern int register_android_graphics_Typeface(JNIEnv* env); | 
|  | extern int register_android_graphics_YuvImage(JNIEnv* env); | 
|  |  | 
|  | extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env); | 
|  | extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env); | 
|  | extern int register_android_opengl_jni_EGL14(JNIEnv* env); | 
|  | extern int register_android_opengl_jni_EGLExt(JNIEnv* env); | 
|  | extern int register_android_opengl_jni_GLES10(JNIEnv* env); | 
|  | extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env); | 
|  | extern int register_android_opengl_jni_GLES11(JNIEnv* env); | 
|  | extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env); | 
|  | extern int register_android_opengl_jni_GLES20(JNIEnv* env); | 
|  | extern int register_android_opengl_jni_GLES30(JNIEnv* env); | 
|  | extern int register_android_opengl_jni_GLES31(JNIEnv* env); | 
|  | extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env); | 
|  |  | 
|  | extern int register_android_hardware_Camera(JNIEnv *env); | 
|  | extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env); | 
|  | extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env); | 
|  | extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env); | 
|  | extern int register_android_hardware_camera2_DngCreator(JNIEnv *env); | 
|  | extern int register_android_hardware_SensorManager(JNIEnv *env); | 
|  | extern int register_android_hardware_SerialPort(JNIEnv *env); | 
|  | extern int register_android_hardware_SoundTrigger(JNIEnv *env); | 
|  | extern int register_android_hardware_UsbDevice(JNIEnv *env); | 
|  | extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env); | 
|  | extern int register_android_hardware_UsbRequest(JNIEnv *env); | 
|  | extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env); | 
|  |  | 
|  | extern int register_android_media_AudioRecord(JNIEnv *env); | 
|  | extern int register_android_media_AudioSystem(JNIEnv *env); | 
|  | extern int register_android_media_AudioTrack(JNIEnv *env); | 
|  | extern int register_android_media_JetPlayer(JNIEnv *env); | 
|  | extern int register_android_media_ToneGenerator(JNIEnv *env); | 
|  |  | 
|  | extern int register_android_util_FloatMath(JNIEnv* env); | 
|  |  | 
|  | namespace android { | 
|  |  | 
|  | /* | 
|  | * JNI-based registration functions.  Note these are properly contained in | 
|  | * namespace android. | 
|  | */ | 
|  | extern int register_android_content_AssetManager(JNIEnv* env); | 
|  | extern int register_android_util_EventLog(JNIEnv* env); | 
|  | extern int register_android_util_Log(JNIEnv* env); | 
|  | extern int register_android_content_StringBlock(JNIEnv* env); | 
|  | extern int register_android_content_XmlBlock(JNIEnv* env); | 
|  | extern int register_android_emoji_EmojiFactory(JNIEnv* env); | 
|  | extern int register_android_graphics_Canvas(JNIEnv* env); | 
|  | extern int register_android_graphics_CanvasProperty(JNIEnv* env); | 
|  | extern int register_android_graphics_ColorFilter(JNIEnv* env); | 
|  | extern int register_android_graphics_DrawFilter(JNIEnv* env); | 
|  | extern int register_android_graphics_FontFamily(JNIEnv* env); | 
|  | extern int register_android_graphics_LayerRasterizer(JNIEnv*); | 
|  | extern int register_android_graphics_Matrix(JNIEnv* env); | 
|  | extern int register_android_graphics_Paint(JNIEnv* env); | 
|  | extern int register_android_graphics_Path(JNIEnv* env); | 
|  | extern int register_android_graphics_PathMeasure(JNIEnv* env); | 
|  | extern int register_android_graphics_Picture(JNIEnv*); | 
|  | extern int register_android_graphics_PorterDuff(JNIEnv* env); | 
|  | extern int register_android_graphics_Rasterizer(JNIEnv* env); | 
|  | extern int register_android_graphics_Region(JNIEnv* env); | 
|  | extern int register_android_graphics_SurfaceTexture(JNIEnv* env); | 
|  | extern int register_android_graphics_Xfermode(JNIEnv* env); | 
|  | extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env); | 
|  | extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env); | 
|  | extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env); | 
|  | extern int register_android_view_DisplayEventReceiver(JNIEnv* env); | 
|  | extern int register_android_view_RenderNode(JNIEnv* env); | 
|  | extern int register_android_view_RenderNodeAnimator(JNIEnv* env); | 
|  | extern int register_android_view_GraphicBuffer(JNIEnv* env); | 
|  | extern int register_android_view_GLES20Canvas(JNIEnv* env); | 
|  | extern int register_android_view_HardwareLayer(JNIEnv* env); | 
|  | extern int register_android_view_ThreadedRenderer(JNIEnv* env); | 
|  | extern int register_android_view_Surface(JNIEnv* env); | 
|  | extern int register_android_view_SurfaceControl(JNIEnv* env); | 
|  | extern int register_android_view_SurfaceSession(JNIEnv* env); | 
|  | extern int register_android_view_TextureView(JNIEnv* env); | 
|  | extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env); | 
|  | extern int register_android_database_CursorWindow(JNIEnv* env); | 
|  | extern int register_android_database_SQLiteConnection(JNIEnv* env); | 
|  | extern int register_android_database_SQLiteGlobal(JNIEnv* env); | 
|  | extern int register_android_database_SQLiteDebug(JNIEnv* env); | 
|  | extern int register_android_nio_utils(JNIEnv* env); | 
|  | extern int register_android_os_Debug(JNIEnv* env); | 
|  | extern int register_android_os_MessageQueue(JNIEnv* env); | 
|  | extern int register_android_os_Parcel(JNIEnv* env); | 
|  | extern int register_android_os_SELinux(JNIEnv* env); | 
|  | extern int register_android_os_SystemProperties(JNIEnv *env); | 
|  | extern int register_android_os_SystemClock(JNIEnv* env); | 
|  | extern int register_android_os_Trace(JNIEnv* env); | 
|  | extern int register_android_os_FileObserver(JNIEnv *env); | 
|  | extern int register_android_os_UEventObserver(JNIEnv* env); | 
|  | extern int register_android_os_MemoryFile(JNIEnv* env); | 
|  | extern int register_android_net_LocalSocketImpl(JNIEnv* env); | 
|  | extern int register_android_net_NetworkUtils(JNIEnv* env); | 
|  | extern int register_android_net_TrafficStats(JNIEnv* env); | 
|  | extern int register_android_text_AndroidCharacter(JNIEnv *env); | 
|  | extern int register_android_text_StaticLayout(JNIEnv *env); | 
|  | extern int register_android_text_AndroidBidi(JNIEnv *env); | 
|  | extern int register_android_opengl_classes(JNIEnv *env); | 
|  | extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env); | 
|  | extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env); | 
|  | extern int register_com_android_internal_os_ZygoteInit(JNIEnv* env); | 
|  | extern int register_android_backup_BackupDataInput(JNIEnv *env); | 
|  | extern int register_android_backup_BackupDataOutput(JNIEnv *env); | 
|  | extern int register_android_backup_FileBackupHelperBase(JNIEnv *env); | 
|  | extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env); | 
|  | extern int register_android_app_backup_FullBackup(JNIEnv *env); | 
|  | extern int register_android_app_ActivityThread(JNIEnv *env); | 
|  | extern int register_android_app_NativeActivity(JNIEnv *env); | 
|  | extern int register_android_media_RemoteDisplay(JNIEnv *env); | 
|  | extern int register_android_view_InputChannel(JNIEnv* env); | 
|  | extern int register_android_view_InputDevice(JNIEnv* env); | 
|  | extern int register_android_view_InputEventReceiver(JNIEnv* env); | 
|  | extern int register_android_view_InputEventSender(JNIEnv* env); | 
|  | extern int register_android_view_InputQueue(JNIEnv* env); | 
|  | extern int register_android_view_KeyCharacterMap(JNIEnv *env); | 
|  | extern int register_android_view_KeyEvent(JNIEnv* env); | 
|  | extern int register_android_view_MotionEvent(JNIEnv* env); | 
|  | extern int register_android_view_PointerIcon(JNIEnv* env); | 
|  | extern int register_android_view_VelocityTracker(JNIEnv* env); | 
|  | extern int register_android_content_res_ObbScanner(JNIEnv* env); | 
|  | extern int register_android_content_res_Configuration(JNIEnv* env); | 
|  | extern int register_android_animation_PropertyValuesHolder(JNIEnv *env); | 
|  | extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env); | 
|  | extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env); | 
|  | extern int register_com_android_internal_os_Zygote(JNIEnv *env); | 
|  | extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env); | 
|  |  | 
|  | static AndroidRuntime* gCurRuntime = NULL; | 
|  |  | 
|  | static void doThrow(JNIEnv* env, const char* exc, const char* msg = NULL) | 
|  | { | 
|  | if (jniThrowException(env, exc, msg) != 0) | 
|  | assert(false); | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Code written in the Java Programming Language calls here from main(). | 
|  | */ | 
|  | static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz) | 
|  | { | 
|  | gCurRuntime->onStarted(); | 
|  | } | 
|  |  | 
|  | static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz) | 
|  | { | 
|  | gCurRuntime->onZygoteInit(); | 
|  | } | 
|  |  | 
|  | static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env, | 
|  | jobject clazz, jboolean exitWithoutCleanup) | 
|  | { | 
|  | gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup); | 
|  | } | 
|  |  | 
|  | /* | 
|  | * JNI registration. | 
|  | */ | 
|  | static JNINativeMethod gMethods[] = { | 
|  | { "nativeFinishInit", "()V", | 
|  | (void*) com_android_internal_os_RuntimeInit_nativeFinishInit }, | 
|  | { "nativeZygoteInit", "()V", | 
|  | (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit }, | 
|  | { "nativeSetExitWithoutCleanup", "(Z)V", | 
|  | (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup }, | 
|  | }; | 
|  |  | 
|  | int register_com_android_internal_os_RuntimeInit(JNIEnv* env) | 
|  | { | 
|  | return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit", | 
|  | gMethods, NELEM(gMethods)); | 
|  | } | 
|  |  | 
|  | // ---------------------------------------------------------------------- | 
|  |  | 
|  | /*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL; | 
|  |  | 
|  | AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) : | 
|  | mExitWithoutCleanup(false), | 
|  | mArgBlockStart(argBlockStart), | 
|  | mArgBlockLength(argBlockLength) | 
|  | { | 
|  | SkGraphics::Init(); | 
|  | // There is also a global font cache, but its budget is specified in code | 
|  | // see SkFontHost_android.cpp | 
|  |  | 
|  | // Pre-allocate enough space to hold a fair number of options. | 
|  | mOptions.setCapacity(20); | 
|  |  | 
|  | assert(gCurRuntime == NULL);        // one per process | 
|  | gCurRuntime = this; | 
|  | } | 
|  |  | 
|  | AndroidRuntime::~AndroidRuntime() | 
|  | { | 
|  | SkGraphics::Term(); | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Register native methods using JNI. | 
|  | */ | 
|  | /*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env, | 
|  | const char* className, const JNINativeMethod* gMethods, int numMethods) | 
|  | { | 
|  | return jniRegisterNativeMethods(env, className, gMethods, numMethods); | 
|  | } | 
|  |  | 
|  | void AndroidRuntime::setArgv0(const char* argv0) { | 
|  | memset(mArgBlockStart, 0, mArgBlockLength); | 
|  | strlcpy(mArgBlockStart, argv0, mArgBlockLength); | 
|  | } | 
|  |  | 
|  | status_t AndroidRuntime::callMain(const String8& className, jclass clazz, | 
|  | const Vector<String8>& args) | 
|  | { | 
|  | JNIEnv* env; | 
|  | jmethodID methodId; | 
|  |  | 
|  | ALOGD("Calling main entry %s", className.string()); | 
|  |  | 
|  | env = getJNIEnv(); | 
|  | if (clazz == NULL || env == NULL) { | 
|  | return UNKNOWN_ERROR; | 
|  | } | 
|  |  | 
|  | methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V"); | 
|  | if (methodId == NULL) { | 
|  | ALOGE("ERROR: could not find method %s.main(String[])\n", className.string()); | 
|  | return UNKNOWN_ERROR; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * We want to call main() with a String array with our arguments in it. | 
|  | * Create an array and populate it. | 
|  | */ | 
|  | jclass stringClass; | 
|  | jobjectArray strArray; | 
|  |  | 
|  | const size_t numArgs = args.size(); | 
|  | stringClass = env->FindClass("java/lang/String"); | 
|  | strArray = env->NewObjectArray(numArgs, stringClass, NULL); | 
|  |  | 
|  | for (size_t i = 0; i < numArgs; i++) { | 
|  | jstring argStr = env->NewStringUTF(args[i].string()); | 
|  | env->SetObjectArrayElement(strArray, i, argStr); | 
|  | } | 
|  |  | 
|  | env->CallStaticVoidMethod(clazz, methodId, strArray); | 
|  | return NO_ERROR; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * The VM calls this through the "exit" hook. | 
|  | */ | 
|  | static void runtime_exit(int code) | 
|  | { | 
|  | gCurRuntime->exit(code); | 
|  | } | 
|  |  | 
|  | /* | 
|  | * The VM calls this through the "vfprintf" hook. | 
|  | * | 
|  | * We ignore "fp" and just write the results to the log file. | 
|  | */ | 
|  | static void runtime_vfprintf(FILE* fp, const char* format, va_list ap) | 
|  | { | 
|  | LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * The VM calls this when mutex contention debugging is enabled to | 
|  | * determine whether or not the blocked thread was a "sensitive thread" | 
|  | * for user responsiveness/smoothess. | 
|  | * | 
|  | * Our policy for this is whether or not we're tracing any StrictMode | 
|  | * events on this thread (which we might've inherited via Binder calls | 
|  | * into us) | 
|  | */ | 
|  | static bool runtime_isSensitiveThread() { | 
|  | IPCThreadState* state = IPCThreadState::selfOrNull(); | 
|  | return state && state->getStrictModePolicy() != 0; | 
|  | } | 
|  |  | 
|  | static int hasDir(const char* dir) | 
|  | { | 
|  | struct stat s; | 
|  | int res = stat(dir, &s); | 
|  | if (res == 0) { | 
|  | return S_ISDIR(s.st_mode); | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Read the persistent locale. | 
|  | */ | 
|  | static void readLocale(char* language, char* region) | 
|  | { | 
|  | char propLang[PROPERTY_VALUE_MAX], propRegn[PROPERTY_VALUE_MAX]; | 
|  |  | 
|  | property_get("persist.sys.language", propLang, ""); | 
|  | property_get("persist.sys.country", propRegn, ""); | 
|  | if (*propLang == 0 && *propRegn == 0) { | 
|  | /* Set to ro properties, default is en_US */ | 
|  | property_get("ro.product.locale.language", propLang, "en"); | 
|  | property_get("ro.product.locale.region", propRegn, "US"); | 
|  | } | 
|  | strncat(language, propLang, 3); | 
|  | strncat(region, propRegn, 3); | 
|  | //ALOGD("language=%s region=%s\n", language, region); | 
|  | } | 
|  |  | 
|  | void AndroidRuntime::addOption(const char* optionString, void* extraInfo) | 
|  | { | 
|  | JavaVMOption opt; | 
|  | opt.optionString = optionString; | 
|  | opt.extraInfo = extraInfo; | 
|  | mOptions.add(opt); | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Parse a property containing space-separated options that should be | 
|  | * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap". | 
|  | * | 
|  | * This will cut up "extraOptsBuf" as we chop it into individual options. | 
|  | * | 
|  | * If "quotingArg" is non-null, it is passed before each extra option in mOptions. | 
|  | * | 
|  | * Adds the strings, if any, to mOptions. | 
|  | */ | 
|  | void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg) | 
|  | { | 
|  | char* start = extraOptsBuf; | 
|  | char* end = NULL; | 
|  | while (*start != '\0') { | 
|  | while (*start == ' ')                   /* skip leading whitespace */ | 
|  | start++; | 
|  | if (*start == '\0')                     /* was trailing ws, bail */ | 
|  | break; | 
|  |  | 
|  | end = start+1; | 
|  | while (*end != ' ' && *end != '\0')     /* find end of token */ | 
|  | end++; | 
|  | if (*end == ' ') | 
|  | *end++ = '\0';          /* mark end, advance to indicate more */ | 
|  |  | 
|  | if (quotingArg != NULL) { | 
|  | addOption(quotingArg); | 
|  | } | 
|  | addOption(start); | 
|  | start = end; | 
|  | } | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Reads a "property" into "buffer" with a default of "defaultArg". If | 
|  | * the property is non-empty, it is treated as a runtime option such | 
|  | * as "-Xmx32m". | 
|  | * | 
|  | * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". | 
|  | * | 
|  | * If an argument is found, it is added to mOptions. | 
|  | * | 
|  | * If an option is found, it is added to mOptions and true is | 
|  | * returned. Otherwise false is returned. | 
|  | */ | 
|  | bool AndroidRuntime::parseRuntimeOption(const char* property, | 
|  | char* buffer, | 
|  | const char* runtimeArg, | 
|  | const char* defaultArg) | 
|  | { | 
|  | strcpy(buffer, runtimeArg); | 
|  | size_t runtimeArgLen = strlen(runtimeArg); | 
|  | property_get(property, buffer+runtimeArgLen, defaultArg); | 
|  | if (buffer[runtimeArgLen] == '\0') { | 
|  | return false; | 
|  | } | 
|  | addOption(buffer); | 
|  | return true; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Reads a "property" into "buffer". If the property is non-empty, it | 
|  | * is treated as a dex2oat compiler option that should be | 
|  | * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none". | 
|  | * | 
|  | * The "compilerArg" is a prefix for the option such as "--compiler-filter=". | 
|  | * | 
|  | * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". | 
|  | * | 
|  | * If an option is found, it is added to mOptions and true is | 
|  | * returned. Otherwise false is returned. | 
|  | */ | 
|  | bool AndroidRuntime::parseCompilerOption(const char* property, | 
|  | char* buffer, | 
|  | const char* compilerArg, | 
|  | const char* quotingArg) | 
|  | { | 
|  | strcpy(buffer, compilerArg); | 
|  | size_t compilerArgLen = strlen(compilerArg); | 
|  | property_get(property, buffer+compilerArgLen, ""); | 
|  | if (buffer[compilerArgLen] == '\0') { | 
|  | return false; | 
|  | } | 
|  | addOption(quotingArg); | 
|  | addOption(buffer); | 
|  | return true; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Reads a "property" into "buffer". If the property is non-empty, it | 
|  | * is treated as a dex2oat compiler runtime option that should be | 
|  | * passed as a quoted option, e.g. "-Ximage-compiler-option | 
|  | * --runtime-arg -Ximage-compiler-option -Xmx32m". | 
|  | * | 
|  | * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". | 
|  | * | 
|  | * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". | 
|  | * | 
|  | * If an option is found, it is added to mOptions and true is | 
|  | * returned. Otherwise false is returned. | 
|  | */ | 
|  | bool AndroidRuntime::parseCompilerRuntimeOption(const char* property, | 
|  | char* buffer, | 
|  | const char* runtimeArg, | 
|  | const char* quotingArg) | 
|  | { | 
|  | strcpy(buffer, runtimeArg); | 
|  | size_t runtimeArgLen = strlen(runtimeArg); | 
|  | property_get(property, buffer+runtimeArgLen, ""); | 
|  | if (buffer[runtimeArgLen] == '\0') { | 
|  | return false; | 
|  | } | 
|  | addOption(quotingArg); | 
|  | addOption("--runtime-arg"); | 
|  | addOption(quotingArg); | 
|  | addOption(buffer); | 
|  | return true; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Start the Dalvik Virtual Machine. | 
|  | * | 
|  | * Various arguments, most determined by system properties, are passed in. | 
|  | * The "mOptions" vector is updated. | 
|  | * | 
|  | * CAUTION: when adding options in here, be careful not to put the | 
|  | * char buffer inside a nested scope.  Adding the buffer to the | 
|  | * options using mOptions.add() does not copy the buffer, so if the | 
|  | * buffer goes out of scope the option may be overwritten.  It's best | 
|  | * to put the buffer at the top of the function so that it is more | 
|  | * unlikely that someone will surround it in a scope at a later time | 
|  | * and thus introduce a bug. | 
|  | * | 
|  | * Returns 0 on success. | 
|  | */ | 
|  | int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv) | 
|  | { | 
|  | int result = -1; | 
|  | JavaVMInitArgs initArgs; | 
|  | char propBuf[PROPERTY_VALUE_MAX]; | 
|  | char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char dexoptFlagsBuf[PROPERTY_VALUE_MAX]; | 
|  | char enableAssertBuf[sizeof("-ea:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; | 
|  | char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; | 
|  | char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX]; | 
|  | char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX]; | 
|  | char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX]; | 
|  | char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX]; | 
|  | char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX]; | 
|  | char jitcodecachesizeOptsBuf[sizeof("-Xjitcodecachesize:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char dalvikVmLibBuf[PROPERTY_VALUE_MAX]; | 
|  | char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; | 
|  | char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; | 
|  | char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; | 
|  | char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; | 
|  | char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; | 
|  | char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; | 
|  | char dex2oatFlagsBuf[PROPERTY_VALUE_MAX]; | 
|  | char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX]; | 
|  | char extraOptsBuf[PROPERTY_VALUE_MAX]; | 
|  | char voldDecryptBuf[PROPERTY_VALUE_MAX]; | 
|  | enum { | 
|  | kEMDefault, | 
|  | kEMIntPortable, | 
|  | kEMIntFast, | 
|  | kEMJitCompiler, | 
|  | } executionMode = kEMDefault; | 
|  | char profilePeriod[sizeof("-Xprofile-period:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char profileDuration[sizeof("-Xprofile-duration:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char profileInterval[sizeof("-Xprofile-interval:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char profileBackoff[sizeof("-Xprofile-backoff:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char profileTopKThreshold[sizeof("-Xprofile-top-k-threshold:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char profileTopKChangeThreshold[sizeof("-Xprofile-top-k-change-threshold:")-1 + | 
|  | PROPERTY_VALUE_MAX]; | 
|  | char profileType[sizeof("-Xprofile-type:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char profileMaxStackDepth[sizeof("-Xprofile-max-stack-depth:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char langOption[sizeof("-Duser.language=") + 3]; | 
|  | char regionOption[sizeof("-Duser.region=") + 3]; | 
|  | char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char jitOpBuf[sizeof("-Xjitop:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char jitMethodBuf[sizeof("-Xjitmethod:")-1 + PROPERTY_VALUE_MAX]; | 
|  | char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX]; | 
|  |  | 
|  | bool checkJni = false; | 
|  | property_get("dalvik.vm.checkjni", propBuf, ""); | 
|  | if (strcmp(propBuf, "true") == 0) { | 
|  | checkJni = true; | 
|  | } else if (strcmp(propBuf, "false") != 0) { | 
|  | /* property is neither true nor false; fall back on kernel parameter */ | 
|  | property_get("ro.kernel.android.checkjni", propBuf, ""); | 
|  | if (propBuf[0] == '1') { | 
|  | checkJni = true; | 
|  | } | 
|  | } | 
|  | ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF"); | 
|  | if (checkJni) { | 
|  | /* extended JNI checking */ | 
|  | addOption("-Xcheck:jni"); | 
|  |  | 
|  | /* set a cap on JNI global references */ | 
|  | addOption("-Xjnigreflimit:2000"); | 
|  |  | 
|  | /* with -Xcheck:jni, this provides a JNI function call trace */ | 
|  | //addOption("-verbose:jni"); | 
|  | } | 
|  |  | 
|  | property_get("dalvik.vm.execution-mode", propBuf, ""); | 
|  | if (strcmp(propBuf, "int:portable") == 0) { | 
|  | executionMode = kEMIntPortable; | 
|  | } else if (strcmp(propBuf, "int:fast") == 0) { | 
|  | executionMode = kEMIntFast; | 
|  | } else if (strcmp(propBuf, "int:jit") == 0) { | 
|  | executionMode = kEMJitCompiler; | 
|  | } | 
|  |  | 
|  | parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:"); | 
|  |  | 
|  | property_get("dalvik.vm.check-dex-sum", propBuf, ""); | 
|  | if (strcmp(propBuf, "true") == 0) { | 
|  | /* perform additional DEX checksum tests */ | 
|  | addOption("-Xcheckdexsum"); | 
|  | } | 
|  |  | 
|  | property_get("log.redirect-stdio", propBuf, ""); | 
|  | if (strcmp(propBuf, "true") == 0) { | 
|  | /* convert stdout/stderr to log messages */ | 
|  | addOption("-Xlog-stdio"); | 
|  | } | 
|  |  | 
|  | strcpy(enableAssertBuf, "-ea:"); | 
|  | property_get("dalvik.vm.enableassertions", enableAssertBuf+sizeof("-ea:")-1, ""); | 
|  | if (enableAssertBuf[sizeof("-ea:")-1] != '\0') { | 
|  | /* accept "all" to mean "all classes and packages" */ | 
|  | if (strcmp(enableAssertBuf+sizeof("-ea:")-1, "all") == 0) | 
|  | enableAssertBuf[3] = '\0'; // truncate to "-ea" | 
|  | ALOGI("Assertions enabled: '%s'\n", enableAssertBuf); | 
|  | addOption(enableAssertBuf); | 
|  | } else { | 
|  | ALOGV("Assertions disabled\n"); | 
|  | } | 
|  |  | 
|  | strcpy(jniOptsBuf, "-Xjniopts:"); | 
|  | if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) { | 
|  | ALOGI("JNI options: '%s'\n", jniOptsBuf); | 
|  | } | 
|  |  | 
|  | /* route exit() to our handler */ | 
|  | addOption("exit", (void*) runtime_exit); | 
|  |  | 
|  | /* route fprintf() to our handler */ | 
|  | addOption("vfprintf", (void*) runtime_vfprintf); | 
|  |  | 
|  | /* register the framework-specific "is sensitive thread" hook */ | 
|  | addOption("sensitiveThread", (void*) runtime_isSensitiveThread); | 
|  |  | 
|  | /* enable verbose; standard options are { jni, gc, class } */ | 
|  | //addOption("-verbose:jni"); | 
|  | addOption("-verbose:gc"); | 
|  | //addOption("-verbose:class"); | 
|  |  | 
|  | /* | 
|  | * The default starting and maximum size of the heap.  Larger | 
|  | * values should be specified in a product property override. | 
|  | */ | 
|  | parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m"); | 
|  | parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m"); | 
|  |  | 
|  | // Increase the main thread's interpreter stack size for bug 6315322. | 
|  | addOption("-XX:mainThreadStackSize=24K"); | 
|  |  | 
|  | // Set the max jit code cache size.  Note: size of 0 will disable the JIT. | 
|  | parseRuntimeOption("dalvik.vm.jit.codecachesize", | 
|  | jitcodecachesizeOptsBuf, | 
|  | "-Xjitcodecachesize:"); | 
|  |  | 
|  | parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit="); | 
|  | parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree="); | 
|  | parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree="); | 
|  | parseRuntimeOption("dalvik.vm.heaptargetutilization", | 
|  | heaptargetutilizationOptsBuf, | 
|  | "-XX:HeapTargetUtilization="); | 
|  |  | 
|  | property_get("ro.config.low_ram", propBuf, ""); | 
|  | if (strcmp(propBuf, "true") == 0) { | 
|  | addOption("-XX:LowMemoryMode"); | 
|  | } | 
|  |  | 
|  | parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:"); | 
|  | parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC="); | 
|  |  | 
|  | /* | 
|  | * Enable or disable dexopt features, such as bytecode verification and | 
|  | * calculation of register maps for precise GC. | 
|  | */ | 
|  | property_get("dalvik.vm.dexopt-flags", dexoptFlagsBuf, ""); | 
|  | if (dexoptFlagsBuf[0] != '\0') { | 
|  | const char* opc; | 
|  | const char* val; | 
|  |  | 
|  | opc = strstr(dexoptFlagsBuf, "v=");     /* verification */ | 
|  | if (opc != NULL) { | 
|  | switch (*(opc+2)) { | 
|  | case 'n':   val = "-Xverify:none";      break; | 
|  | case 'r':   val = "-Xverify:remote";    break; | 
|  | case 'a':   val = "-Xverify:all";       break; | 
|  | default:    val = NULL;                 break; | 
|  | } | 
|  |  | 
|  | if (val != NULL) { | 
|  | addOption(val); | 
|  | } | 
|  | } | 
|  |  | 
|  | opc = strstr(dexoptFlagsBuf, "o=");     /* optimization */ | 
|  | if (opc != NULL) { | 
|  | switch (*(opc+2)) { | 
|  | case 'n':   val = "-Xdexopt:none";      break; | 
|  | case 'v':   val = "-Xdexopt:verified";  break; | 
|  | case 'a':   val = "-Xdexopt:all";       break; | 
|  | case 'f':   val = "-Xdexopt:full";      break; | 
|  | default:    val = NULL;                 break; | 
|  | } | 
|  |  | 
|  | if (val != NULL) { | 
|  | addOption(val); | 
|  | } | 
|  | } | 
|  |  | 
|  | opc = strstr(dexoptFlagsBuf, "m=y");    /* register map */ | 
|  | if (opc != NULL) { | 
|  | addOption("-Xgenregmap"); | 
|  |  | 
|  | /* turn on precise GC while we're at it */ | 
|  | addOption("-Xgc:precise"); | 
|  | } | 
|  | } | 
|  |  | 
|  | /* enable debugging; set suspend=y to pause during VM init */ | 
|  | /* use android ADB transport */ | 
|  | addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y"); | 
|  |  | 
|  | parseRuntimeOption("dalvik.vm.lockprof.threshold", | 
|  | lockProfThresholdBuf, | 
|  | "-Xlockprofthreshold:"); | 
|  |  | 
|  | /* Force interpreter-only mode for selected opcodes. Eg "1-0a,3c,f1-ff" */ | 
|  | parseRuntimeOption("dalvik.vm.jit.op", jitOpBuf, "-Xjitop:"); | 
|  |  | 
|  | /* Force interpreter-only mode for selected methods */ | 
|  | parseRuntimeOption("dalvik.vm.jit.method", jitMethodBuf, "-Xjitmethod:"); | 
|  |  | 
|  | if (executionMode == kEMIntPortable) { | 
|  | addOption("-Xint:portable"); | 
|  | } else if (executionMode == kEMIntFast) { | 
|  | addOption("-Xint:fast"); | 
|  | } else if (executionMode == kEMJitCompiler) { | 
|  | addOption("-Xint:jit"); | 
|  | } | 
|  |  | 
|  | // libart tolerates libdvm flags, but not vice versa, so only pass some options if libart. | 
|  | property_get("persist.sys.dalvik.vm.lib.2", dalvikVmLibBuf, "libart.so"); | 
|  | bool libart = (strncmp(dalvikVmLibBuf, "libart", 6) == 0); | 
|  |  | 
|  | if (libart) { | 
|  | // If we booting without the real /data, don't spend time compiling. | 
|  | property_get("vold.decrypt", voldDecryptBuf, ""); | 
|  | bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || | 
|  | (strcmp(voldDecryptBuf, "1") == 0)); | 
|  |  | 
|  | // Extra options for boot.art/boot.oat image generation. | 
|  | parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, | 
|  | "-Xms", "-Ximage-compiler-option"); | 
|  | parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, | 
|  | "-Xmx", "-Ximage-compiler-option"); | 
|  | if (skip_compilation) { | 
|  | addOption("-Ximage-compiler-option"); | 
|  | addOption("--compiler-filter=verify-none"); | 
|  | } else { | 
|  | parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, | 
|  | "--compiler-filter=", "-Ximage-compiler-option"); | 
|  | } | 
|  | addOption("-Ximage-compiler-option"); | 
|  | addOption("--image-classes-zip=/system/framework/framework.jar"); | 
|  | addOption("-Ximage-compiler-option"); | 
|  | addOption("--image-classes=preloaded-classes"); | 
|  | property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); | 
|  | parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); | 
|  |  | 
|  | // Extra options for DexClassLoader. | 
|  | parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, | 
|  | "-Xms", "-Xcompiler-option"); | 
|  | parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, | 
|  | "-Xmx", "-Xcompiler-option"); | 
|  | if (skip_compilation) { | 
|  | addOption("-Xcompiler-option"); | 
|  | addOption("--compiler-filter=verify-none"); | 
|  | } else { | 
|  | parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, | 
|  | "--compiler-filter=", "-Xcompiler-option"); | 
|  | } | 
|  | property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); | 
|  | parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); | 
|  |  | 
|  | } | 
|  |  | 
|  | /* extra options; parse this late so it overrides others */ | 
|  | property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); | 
|  | parseExtraOpts(extraOptsBuf, NULL); | 
|  |  | 
|  | /* Set the properties for locale */ | 
|  | { | 
|  | strcpy(langOption, "-Duser.language="); | 
|  | strcpy(regionOption, "-Duser.region="); | 
|  | readLocale(langOption, regionOption); | 
|  | addOption(langOption); | 
|  | addOption(regionOption); | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Set profiler options | 
|  | */ | 
|  | if (libart) { | 
|  | // Whether or not the profiler should be enabled. | 
|  | property_get("dalvik.vm.profiler", propBuf, "0"); | 
|  | if (propBuf[0] == '1') { | 
|  | addOption("-Xenable-profiler"); | 
|  | } | 
|  |  | 
|  | // Whether the profile should start upon app startup or be delayed by some random offset | 
|  | // (in seconds) that is bound between 0 and a fixed value. | 
|  | property_get("dalvik.vm.profile.start-immed", propBuf, "0"); | 
|  | if (propBuf[0] == '1') { | 
|  | addOption("-Xprofile-start-immediately"); | 
|  | } | 
|  |  | 
|  | // Number of seconds during profile runs. | 
|  | parseRuntimeOption("dalvik.vm.profile.period-secs", profilePeriod, "-Xprofile-period:"); | 
|  |  | 
|  | // Length of each profile run (seconds). | 
|  | parseRuntimeOption("dalvik.vm.profile.duration-secs", | 
|  | profileDuration, | 
|  | "-Xprofile-duration:"); | 
|  |  | 
|  | // Polling interval during profile run (microseconds). | 
|  | parseRuntimeOption("dalvik.vm.profile.interval-us", profileInterval, "-Xprofile-interval:"); | 
|  |  | 
|  | // Coefficient for period backoff.  The the period is multiplied | 
|  | // by this value after each profile run. | 
|  | parseRuntimeOption("dalvik.vm.profile.backoff-coeff", profileBackoff, "-Xprofile-backoff:"); | 
|  |  | 
|  | // Top K% of samples that are considered relevant when | 
|  | // deciding if the app should be recompiled. | 
|  | parseRuntimeOption("dalvik.vm.profile.top-k-thr", | 
|  | profileTopKThreshold, | 
|  | "-Xprofile-top-k-threshold:"); | 
|  |  | 
|  | // The threshold after which a change in the structure of the | 
|  | // top K% profiled samples becomes significant and triggers | 
|  | // recompilation. A change in profile is considered | 
|  | // significant if X% (top-k-change-threshold) of the top K% | 
|  | // (top-k-threshold property) samples has changed. | 
|  | parseRuntimeOption("dalvik.vm.profile.top-k-ch-thr", | 
|  | profileTopKChangeThreshold, | 
|  | "-Xprofile-top-k-change-threshold:"); | 
|  |  | 
|  | // Type of profile data. | 
|  | parseRuntimeOption("dalvik.vm.profiler.type", profileType, "-Xprofile-type:"); | 
|  |  | 
|  | // Depth of bounded stack data | 
|  | parseRuntimeOption("dalvik.vm.profile.max-stack-depth", | 
|  | profileMaxStackDepth, | 
|  | "-Xprofile-max-stack-depth:"); | 
|  |  | 
|  | // Native bridge library. "0" means that native bridge is disabled. | 
|  | property_get("ro.dalvik.vm.native.bridge", propBuf, ""); | 
|  | if (propBuf[0] == '\0') { | 
|  | ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); | 
|  | } else if (strcmp(propBuf, "0") != 0) { | 
|  | snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, | 
|  | "-XX:NativeBridge=%s", propBuf); | 
|  | addOption(nativeBridgeLibrary); | 
|  | } | 
|  | } | 
|  |  | 
|  | initArgs.version = JNI_VERSION_1_4; | 
|  | initArgs.options = mOptions.editArray(); | 
|  | initArgs.nOptions = mOptions.size(); | 
|  | initArgs.ignoreUnrecognized = JNI_FALSE; | 
|  |  | 
|  | /* | 
|  | * Initialize the VM. | 
|  | * | 
|  | * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. | 
|  | * If this call succeeds, the VM is ready, and we can start issuing | 
|  | * JNI calls. | 
|  | */ | 
|  | if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { | 
|  | ALOGE("JNI_CreateJavaVM failed\n"); | 
|  | goto bail; | 
|  | } | 
|  |  | 
|  | result = 0; | 
|  |  | 
|  | bail: | 
|  | return result; | 
|  | } | 
|  |  | 
|  | char* AndroidRuntime::toSlashClassName(const char* className) | 
|  | { | 
|  | char* result = strdup(className); | 
|  | for (char* cp = result; *cp != '\0'; cp++) { | 
|  | if (*cp == '.') { | 
|  | *cp = '/'; | 
|  | } | 
|  | } | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /** Create a Java string from an ASCII or Latin-1 string */ | 
|  | jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { | 
|  | if (!bytes) return NULL; | 
|  | int length = strlen(bytes); | 
|  | jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); | 
|  | if (!buffer) return NULL; | 
|  | jchar* chp = buffer; | 
|  | for (int i = 0; i < length; i++) { | 
|  | *chp++ = *bytes++; | 
|  | } | 
|  | return env->NewString(buffer, length); | 
|  | } | 
|  |  | 
|  |  | 
|  | /* | 
|  | * Start the Android runtime.  This involves starting the virtual machine | 
|  | * and calling the "static void main(String[] args)" method in the class | 
|  | * named by "className". | 
|  | * | 
|  | * Passes the main function two arguments, the class name and the specified | 
|  | * options string. | 
|  | */ | 
|  | void AndroidRuntime::start(const char* className, const Vector<String8>& options) | 
|  | { | 
|  | ALOGD("\n>>>>>> AndroidRuntime START %s <<<<<<\n", | 
|  | className != NULL ? className : "(unknown)"); | 
|  |  | 
|  | static const String8 startSystemServer("start-system-server"); | 
|  |  | 
|  | /* | 
|  | * 'startSystemServer == true' means runtime is obsolete and not run from | 
|  | * init.rc anymore, so we print out the boot start event here. | 
|  | */ | 
|  | for (size_t i = 0; i < options.size(); ++i) { | 
|  | if (options[i] == startSystemServer) { | 
|  | /* track our progress through the boot sequence */ | 
|  | const int LOG_BOOT_PROGRESS_START = 3000; | 
|  | LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); | 
|  | } | 
|  | } | 
|  |  | 
|  | const char* rootDir = getenv("ANDROID_ROOT"); | 
|  | if (rootDir == NULL) { | 
|  | rootDir = "/system"; | 
|  | if (!hasDir("/system")) { | 
|  | LOG_FATAL("No root directory specified, and /android does not exist."); | 
|  | return; | 
|  | } | 
|  | setenv("ANDROID_ROOT", rootDir, 1); | 
|  | } | 
|  |  | 
|  | //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); | 
|  | //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); | 
|  |  | 
|  | /* start the virtual machine */ | 
|  | JniInvocation jni_invocation; | 
|  | jni_invocation.Init(NULL); | 
|  | JNIEnv* env; | 
|  | if (startVm(&mJavaVM, &env) != 0) { | 
|  | return; | 
|  | } | 
|  | onVmCreated(env); | 
|  |  | 
|  | /* | 
|  | * Register android functions. | 
|  | */ | 
|  | if (startReg(env) < 0) { | 
|  | ALOGE("Unable to register all android natives\n"); | 
|  | return; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * We want to call main() with a String array with arguments in it. | 
|  | * At present we have two arguments, the class name and an option string. | 
|  | * Create an array to hold them. | 
|  | */ | 
|  | jclass stringClass; | 
|  | jobjectArray strArray; | 
|  | jstring classNameStr; | 
|  |  | 
|  | stringClass = env->FindClass("java/lang/String"); | 
|  | assert(stringClass != NULL); | 
|  | strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); | 
|  | assert(strArray != NULL); | 
|  | classNameStr = env->NewStringUTF(className); | 
|  | assert(classNameStr != NULL); | 
|  | env->SetObjectArrayElement(strArray, 0, classNameStr); | 
|  |  | 
|  | for (size_t i = 0; i < options.size(); ++i) { | 
|  | jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); | 
|  | assert(optionsStr != NULL); | 
|  | env->SetObjectArrayElement(strArray, i + 1, optionsStr); | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Start VM.  This thread becomes the main thread of the VM, and will | 
|  | * not return until the VM exits. | 
|  | */ | 
|  | char* slashClassName = toSlashClassName(className); | 
|  | jclass startClass = env->FindClass(slashClassName); | 
|  | if (startClass == NULL) { | 
|  | ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); | 
|  | /* keep going */ | 
|  | } else { | 
|  | jmethodID startMeth = env->GetStaticMethodID(startClass, "main", | 
|  | "([Ljava/lang/String;)V"); | 
|  | if (startMeth == NULL) { | 
|  | ALOGE("JavaVM unable to find main() in '%s'\n", className); | 
|  | /* keep going */ | 
|  | } else { | 
|  | env->CallStaticVoidMethod(startClass, startMeth, strArray); | 
|  |  | 
|  | #if 0 | 
|  | if (env->ExceptionCheck()) | 
|  | threadExitUncaughtException(env); | 
|  | #endif | 
|  | } | 
|  | } | 
|  | free(slashClassName); | 
|  |  | 
|  | ALOGD("Shutting down VM\n"); | 
|  | if (mJavaVM->DetachCurrentThread() != JNI_OK) | 
|  | ALOGW("Warning: unable to detach main thread\n"); | 
|  | if (mJavaVM->DestroyJavaVM() != 0) | 
|  | ALOGW("Warning: VM did not shut down cleanly\n"); | 
|  | } | 
|  |  | 
|  | void AndroidRuntime::exit(int code) | 
|  | { | 
|  | if (mExitWithoutCleanup) { | 
|  | ALOGI("VM exiting with result code %d, cleanup skipped.", code); | 
|  | ::_exit(code); | 
|  | } else { | 
|  | ALOGI("VM exiting with result code %d.", code); | 
|  | onExit(code); | 
|  | ::exit(code); | 
|  | } | 
|  | } | 
|  |  | 
|  | void AndroidRuntime::onVmCreated(JNIEnv* env) | 
|  | { | 
|  | // If AndroidRuntime had anything to do here, we'd have done it in 'start'. | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Get the JNIEnv pointer for this thread. | 
|  | * | 
|  | * Returns NULL if the slot wasn't allocated or populated. | 
|  | */ | 
|  | /*static*/ JNIEnv* AndroidRuntime::getJNIEnv() | 
|  | { | 
|  | JNIEnv* env; | 
|  | JavaVM* vm = AndroidRuntime::getJavaVM(); | 
|  | assert(vm != NULL); | 
|  |  | 
|  | if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) | 
|  | return NULL; | 
|  | return env; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Makes the current thread visible to the VM. | 
|  | * | 
|  | * The JNIEnv pointer returned is only valid for the current thread, and | 
|  | * thus must be tucked into thread-local storage. | 
|  | */ | 
|  | static int javaAttachThread(const char* threadName, JNIEnv** pEnv) | 
|  | { | 
|  | JavaVMAttachArgs args; | 
|  | JavaVM* vm; | 
|  | jint result; | 
|  |  | 
|  | vm = AndroidRuntime::getJavaVM(); | 
|  | assert(vm != NULL); | 
|  |  | 
|  | args.version = JNI_VERSION_1_4; | 
|  | args.name = (char*) threadName; | 
|  | args.group = NULL; | 
|  |  | 
|  | result = vm->AttachCurrentThread(pEnv, (void*) &args); | 
|  | if (result != JNI_OK) | 
|  | ALOGI("NOTE: attach of thread '%s' failed\n", threadName); | 
|  |  | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Detach the current thread from the set visible to the VM. | 
|  | */ | 
|  | static int javaDetachThread(void) | 
|  | { | 
|  | JavaVM* vm; | 
|  | jint result; | 
|  |  | 
|  | vm = AndroidRuntime::getJavaVM(); | 
|  | assert(vm != NULL); | 
|  |  | 
|  | result = vm->DetachCurrentThread(); | 
|  | if (result != JNI_OK) | 
|  | ALOGE("ERROR: thread detach failed\n"); | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * When starting a native thread that will be visible from the VM, we | 
|  | * bounce through this to get the right attach/detach action. | 
|  | * Note that this function calls free(args) | 
|  | */ | 
|  | /*static*/ int AndroidRuntime::javaThreadShell(void* args) { | 
|  | void* start = ((void**)args)[0]; | 
|  | void* userData = ((void **)args)[1]; | 
|  | char* name = (char*) ((void **)args)[2];        // we own this storage | 
|  | free(args); | 
|  | JNIEnv* env; | 
|  | int result; | 
|  |  | 
|  | /* hook us into the VM */ | 
|  | if (javaAttachThread(name, &env) != JNI_OK) | 
|  | return -1; | 
|  |  | 
|  | /* start the thread running */ | 
|  | result = (*(android_thread_func_t)start)(userData); | 
|  |  | 
|  | /* unhook us */ | 
|  | javaDetachThread(); | 
|  | free(name); | 
|  |  | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * This is invoked from androidCreateThreadEtc() via the callback | 
|  | * set with androidSetCreateThreadFunc(). | 
|  | * | 
|  | * We need to create the new thread in such a way that it gets hooked | 
|  | * into the VM before it really starts executing. | 
|  | */ | 
|  | /*static*/ int AndroidRuntime::javaCreateThreadEtc( | 
|  | android_thread_func_t entryFunction, | 
|  | void* userData, | 
|  | const char* threadName, | 
|  | int32_t threadPriority, | 
|  | size_t threadStackSize, | 
|  | android_thread_id_t* threadId) | 
|  | { | 
|  | void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free | 
|  | int result; | 
|  |  | 
|  | if (!threadName) | 
|  | threadName = "unnamed thread"; | 
|  |  | 
|  | args[0] = (void*) entryFunction; | 
|  | args[1] = userData; | 
|  | args[2] = (void*) strdup(threadName);   // javaThreadShell must free | 
|  |  | 
|  | result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, | 
|  | threadName, threadPriority, threadStackSize, threadId); | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Create a thread that is visible from the VM. | 
|  | * | 
|  | * This is called from elsewhere in the library. | 
|  | */ | 
|  | /*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, | 
|  | void (*start)(void *), void* arg) | 
|  | { | 
|  | android_thread_id_t threadId = 0; | 
|  | javaCreateThreadEtc((android_thread_func_t) start, arg, name, | 
|  | ANDROID_PRIORITY_DEFAULT, 0, &threadId); | 
|  | return threadId; | 
|  | } | 
|  |  | 
|  | #if 0 | 
|  | static void quickTest(void* arg) | 
|  | { | 
|  | const char* str = (const char*) arg; | 
|  |  | 
|  | printf("In quickTest: %s\n", str); | 
|  | } | 
|  | #endif | 
|  |  | 
|  | #ifdef NDEBUG | 
|  | #define REG_JNI(name)      { name } | 
|  | struct RegJNIRec { | 
|  | int (*mProc)(JNIEnv*); | 
|  | }; | 
|  | #else | 
|  | #define REG_JNI(name)      { name, #name } | 
|  | struct RegJNIRec { | 
|  | int (*mProc)(JNIEnv*); | 
|  | const char* mName; | 
|  | }; | 
|  | #endif | 
|  |  | 
|  | typedef void (*RegJAMProc)(); | 
|  |  | 
|  | static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) | 
|  | { | 
|  | for (size_t i = 0; i < count; i++) { | 
|  | if (array[i].mProc(env) < 0) { | 
|  | #ifndef NDEBUG | 
|  | ALOGD("----------!!! %s failed to load\n", array[i].mName); | 
|  | #endif | 
|  | return -1; | 
|  | } | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static void register_jam_procs(const RegJAMProc array[], size_t count) | 
|  | { | 
|  | for (size_t i = 0; i < count; i++) { | 
|  | array[i](); | 
|  | } | 
|  | } | 
|  |  | 
|  | static const RegJNIRec gRegJNI[] = { | 
|  | REG_JNI(register_com_android_internal_os_RuntimeInit), | 
|  | REG_JNI(register_android_os_SystemClock), | 
|  | REG_JNI(register_android_util_EventLog), | 
|  | REG_JNI(register_android_util_Log), | 
|  | REG_JNI(register_android_util_FloatMath), | 
|  | REG_JNI(register_android_content_AssetManager), | 
|  | REG_JNI(register_android_content_StringBlock), | 
|  | REG_JNI(register_android_content_XmlBlock), | 
|  | REG_JNI(register_android_emoji_EmojiFactory), | 
|  | REG_JNI(register_android_text_AndroidCharacter), | 
|  | REG_JNI(register_android_text_StaticLayout), | 
|  | REG_JNI(register_android_text_AndroidBidi), | 
|  | REG_JNI(register_android_view_InputDevice), | 
|  | REG_JNI(register_android_view_KeyCharacterMap), | 
|  | REG_JNI(register_android_os_Process), | 
|  | REG_JNI(register_android_os_SystemProperties), | 
|  | REG_JNI(register_android_os_Binder), | 
|  | REG_JNI(register_android_os_Parcel), | 
|  | REG_JNI(register_android_nio_utils), | 
|  | REG_JNI(register_android_graphics_Graphics), | 
|  | REG_JNI(register_android_view_DisplayEventReceiver), | 
|  | REG_JNI(register_android_view_RenderNode), | 
|  | REG_JNI(register_android_view_RenderNodeAnimator), | 
|  | REG_JNI(register_android_view_GraphicBuffer), | 
|  | REG_JNI(register_android_view_GLES20Canvas), | 
|  | REG_JNI(register_android_view_HardwareLayer), | 
|  | REG_JNI(register_android_view_ThreadedRenderer), | 
|  | REG_JNI(register_android_view_Surface), | 
|  | REG_JNI(register_android_view_SurfaceControl), | 
|  | REG_JNI(register_android_view_SurfaceSession), | 
|  | REG_JNI(register_android_view_TextureView), | 
|  | REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), | 
|  | REG_JNI(register_com_google_android_gles_jni_EGLImpl), | 
|  | REG_JNI(register_com_google_android_gles_jni_GLImpl), | 
|  | REG_JNI(register_android_opengl_jni_EGL14), | 
|  | REG_JNI(register_android_opengl_jni_EGLExt), | 
|  | REG_JNI(register_android_opengl_jni_GLES10), | 
|  | REG_JNI(register_android_opengl_jni_GLES10Ext), | 
|  | REG_JNI(register_android_opengl_jni_GLES11), | 
|  | REG_JNI(register_android_opengl_jni_GLES11Ext), | 
|  | REG_JNI(register_android_opengl_jni_GLES20), | 
|  | REG_JNI(register_android_opengl_jni_GLES30), | 
|  | REG_JNI(register_android_opengl_jni_GLES31), | 
|  | REG_JNI(register_android_opengl_jni_GLES31Ext), | 
|  |  | 
|  | REG_JNI(register_android_graphics_Bitmap), | 
|  | REG_JNI(register_android_graphics_BitmapFactory), | 
|  | REG_JNI(register_android_graphics_BitmapRegionDecoder), | 
|  | REG_JNI(register_android_graphics_Camera), | 
|  | REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), | 
|  | REG_JNI(register_android_graphics_Canvas), | 
|  | REG_JNI(register_android_graphics_CanvasProperty), | 
|  | REG_JNI(register_android_graphics_ColorFilter), | 
|  | REG_JNI(register_android_graphics_DrawFilter), | 
|  | REG_JNI(register_android_graphics_FontFamily), | 
|  | REG_JNI(register_android_graphics_Interpolator), | 
|  | REG_JNI(register_android_graphics_LayerRasterizer), | 
|  | REG_JNI(register_android_graphics_MaskFilter), | 
|  | REG_JNI(register_android_graphics_Matrix), | 
|  | REG_JNI(register_android_graphics_Movie), | 
|  | REG_JNI(register_android_graphics_NinePatch), | 
|  | REG_JNI(register_android_graphics_Paint), | 
|  | REG_JNI(register_android_graphics_Path), | 
|  | REG_JNI(register_android_graphics_PathMeasure), | 
|  | REG_JNI(register_android_graphics_PathEffect), | 
|  | REG_JNI(register_android_graphics_Picture), | 
|  | REG_JNI(register_android_graphics_PorterDuff), | 
|  | REG_JNI(register_android_graphics_Rasterizer), | 
|  | REG_JNI(register_android_graphics_Region), | 
|  | REG_JNI(register_android_graphics_Shader), | 
|  | REG_JNI(register_android_graphics_SurfaceTexture), | 
|  | REG_JNI(register_android_graphics_Typeface), | 
|  | REG_JNI(register_android_graphics_Xfermode), | 
|  | REG_JNI(register_android_graphics_YuvImage), | 
|  | REG_JNI(register_android_graphics_pdf_PdfDocument), | 
|  | REG_JNI(register_android_graphics_pdf_PdfEditor), | 
|  | REG_JNI(register_android_graphics_pdf_PdfRenderer), | 
|  |  | 
|  | REG_JNI(register_android_database_CursorWindow), | 
|  | REG_JNI(register_android_database_SQLiteConnection), | 
|  | REG_JNI(register_android_database_SQLiteGlobal), | 
|  | REG_JNI(register_android_database_SQLiteDebug), | 
|  | REG_JNI(register_android_os_Debug), | 
|  | REG_JNI(register_android_os_FileObserver), | 
|  | REG_JNI(register_android_os_MessageQueue), | 
|  | REG_JNI(register_android_os_SELinux), | 
|  | REG_JNI(register_android_os_Trace), | 
|  | REG_JNI(register_android_os_UEventObserver), | 
|  | REG_JNI(register_android_net_LocalSocketImpl), | 
|  | REG_JNI(register_android_net_NetworkUtils), | 
|  | REG_JNI(register_android_net_TrafficStats), | 
|  | REG_JNI(register_android_os_MemoryFile), | 
|  | REG_JNI(register_com_android_internal_os_ZygoteInit), | 
|  | REG_JNI(register_com_android_internal_os_Zygote), | 
|  | REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), | 
|  | REG_JNI(register_android_hardware_Camera), | 
|  | REG_JNI(register_android_hardware_camera2_CameraMetadata), | 
|  | REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), | 
|  | REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), | 
|  | REG_JNI(register_android_hardware_camera2_DngCreator), | 
|  | REG_JNI(register_android_hardware_SensorManager), | 
|  | REG_JNI(register_android_hardware_SerialPort), | 
|  | REG_JNI(register_android_hardware_SoundTrigger), | 
|  | REG_JNI(register_android_hardware_UsbDevice), | 
|  | REG_JNI(register_android_hardware_UsbDeviceConnection), | 
|  | REG_JNI(register_android_hardware_UsbRequest), | 
|  | REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), | 
|  | REG_JNI(register_android_media_AudioRecord), | 
|  | REG_JNI(register_android_media_AudioSystem), | 
|  | REG_JNI(register_android_media_AudioTrack), | 
|  | REG_JNI(register_android_media_JetPlayer), | 
|  | REG_JNI(register_android_media_RemoteDisplay), | 
|  | REG_JNI(register_android_media_ToneGenerator), | 
|  |  | 
|  | REG_JNI(register_android_opengl_classes), | 
|  | REG_JNI(register_android_server_NetworkManagementSocketTagger), | 
|  | REG_JNI(register_android_ddm_DdmHandleNativeHeap), | 
|  | REG_JNI(register_android_backup_BackupDataInput), | 
|  | REG_JNI(register_android_backup_BackupDataOutput), | 
|  | REG_JNI(register_android_backup_FileBackupHelperBase), | 
|  | REG_JNI(register_android_backup_BackupHelperDispatcher), | 
|  | REG_JNI(register_android_app_backup_FullBackup), | 
|  | REG_JNI(register_android_app_ActivityThread), | 
|  | REG_JNI(register_android_app_NativeActivity), | 
|  | REG_JNI(register_android_view_InputChannel), | 
|  | REG_JNI(register_android_view_InputEventReceiver), | 
|  | REG_JNI(register_android_view_InputEventSender), | 
|  | REG_JNI(register_android_view_InputQueue), | 
|  | REG_JNI(register_android_view_KeyEvent), | 
|  | REG_JNI(register_android_view_MotionEvent), | 
|  | REG_JNI(register_android_view_PointerIcon), | 
|  | REG_JNI(register_android_view_VelocityTracker), | 
|  |  | 
|  | REG_JNI(register_android_content_res_ObbScanner), | 
|  | REG_JNI(register_android_content_res_Configuration), | 
|  |  | 
|  | REG_JNI(register_android_animation_PropertyValuesHolder), | 
|  | REG_JNI(register_com_android_internal_content_NativeLibraryHelper), | 
|  | REG_JNI(register_com_android_internal_net_NetworkStatsFactory), | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * Register android native functions with the VM. | 
|  | */ | 
|  | /*static*/ int AndroidRuntime::startReg(JNIEnv* env) | 
|  | { | 
|  | /* | 
|  | * This hook causes all future threads created in this process to be | 
|  | * attached to the JavaVM.  (This needs to go away in favor of JNI | 
|  | * Attach calls.) | 
|  | */ | 
|  | androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); | 
|  |  | 
|  | ALOGV("--- registering native functions ---\n"); | 
|  |  | 
|  | /* | 
|  | * Every "register" function calls one or more things that return | 
|  | * a local reference (e.g. FindClass).  Because we haven't really | 
|  | * started the VM yet, they're all getting stored in the base frame | 
|  | * and never released.  Use Push/Pop to manage the storage. | 
|  | */ | 
|  | env->PushLocalFrame(200); | 
|  |  | 
|  | if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { | 
|  | env->PopLocalFrame(NULL); | 
|  | return -1; | 
|  | } | 
|  | env->PopLocalFrame(NULL); | 
|  |  | 
|  | //createJavaThread("fubar", quickTest, (void*) "hello"); | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | AndroidRuntime* AndroidRuntime::getRuntime() | 
|  | { | 
|  | return gCurRuntime; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Used by WithFramework to register native functions. | 
|  | */ | 
|  | extern "C" | 
|  | jint Java_com_android_internal_util_WithFramework_registerNatives( | 
|  | JNIEnv* env, jclass clazz) { | 
|  | return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Used by LoadClass to register native functions. | 
|  | */ | 
|  | extern "C" | 
|  | jint Java_LoadClass_registerNatives(JNIEnv* env, jclass clazz) { | 
|  | return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); | 
|  | } | 
|  |  | 
|  | }   // namespace android |