1 /* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define LOG_TAG "AndroidRuntime" 18 //#define LOG_NDEBUG 0 19 20 #include <android_runtime/AndroidRuntime.h> 21 #include <binder/IBinder.h> 22 #include <binder/IPCThreadState.h> 23 #include <binder/IServiceManager.h> 24 #include <utils/Log.h> 25 #include <utils/misc.h> 26 #include <binder/Parcel.h> 27 #include <utils/threads.h> 28 #include <cutils/properties.h> 29 30 #include <SkGraphics.h> 31 #include <SkImageDecoder.h> 32 33 #include "jni.h" 34 #include "JNIHelp.h" 35 #include "JniInvocation.h" 36 #include "android_util_Binder.h" 37 38 #include <stdio.h> 39 #include <signal.h> 40 #include <sys/stat.h> 41 #include <sys/types.h> 42 #include <signal.h> 43 #include <dirent.h> 44 #include <assert.h> 45 46 #include <string> 47 #include <vector> 48 49 50 using namespace android; 51 52 extern int register_android_os_Binder(JNIEnv* env); 53 extern int register_android_os_Process(JNIEnv* env); 54 extern int register_android_graphics_Bitmap(JNIEnv*); 55 extern int register_android_graphics_BitmapFactory(JNIEnv*); 56 extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*); 57 extern int register_android_graphics_Camera(JNIEnv* env); 58 extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env); 59 extern int register_android_graphics_Graphics(JNIEnv* env); 60 extern int register_android_graphics_Interpolator(JNIEnv* env); 61 extern int register_android_graphics_MaskFilter(JNIEnv* env); 62 extern int register_android_graphics_Movie(JNIEnv* env); 63 extern int register_android_graphics_NinePatch(JNIEnv*); 64 extern int register_android_graphics_PathEffect(JNIEnv* env); 65 extern int register_android_graphics_Shader(JNIEnv* env); 66 extern int register_android_graphics_Typeface(JNIEnv* env); 67 extern int register_android_graphics_YuvImage(JNIEnv* env); 68 69 extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env); 70 extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env); 71 extern int register_android_opengl_jni_EGL14(JNIEnv* env); 72 extern int register_android_opengl_jni_EGLExt(JNIEnv* env); 73 extern int register_android_opengl_jni_GLES10(JNIEnv* env); 74 extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env); 75 extern int register_android_opengl_jni_GLES11(JNIEnv* env); 76 extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env); 77 extern int register_android_opengl_jni_GLES20(JNIEnv* env); 78 extern int register_android_opengl_jni_GLES30(JNIEnv* env); 79 extern int register_android_opengl_jni_GLES31(JNIEnv* env); 80 extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env); 81 82 extern int register_android_hardware_Camera(JNIEnv *env); 83 extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env); 84 extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env); 85 extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env); 86 extern int register_android_hardware_camera2_DngCreator(JNIEnv *env); 87 extern int register_android_hardware_Radio(JNIEnv *env); 88 extern int register_android_hardware_SensorManager(JNIEnv *env); 89 extern int register_android_hardware_SerialPort(JNIEnv *env); 90 extern int register_android_hardware_SoundTrigger(JNIEnv *env); 91 extern int register_android_hardware_UsbDevice(JNIEnv *env); 92 extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env); 93 extern int register_android_hardware_UsbRequest(JNIEnv *env); 94 extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env); 95 96 extern int register_android_media_AudioRecord(JNIEnv *env); 97 extern int register_android_media_AudioSystem(JNIEnv *env); 98 extern int register_android_media_AudioTrack(JNIEnv *env); 99 extern int register_android_media_JetPlayer(JNIEnv *env); 100 extern int register_android_media_ToneGenerator(JNIEnv *env); 101 102 namespace android { 103 104 /* 105 * JNI-based registration functions. Note these are properly contained in 106 * namespace android. 107 */ 108 extern int register_android_content_AssetManager(JNIEnv* env); 109 extern int register_android_util_EventLog(JNIEnv* env); 110 extern int register_android_util_Log(JNIEnv* env); 111 extern int register_android_content_StringBlock(JNIEnv* env); 112 extern int register_android_content_XmlBlock(JNIEnv* env); 113 extern int register_android_emoji_EmojiFactory(JNIEnv* env); 114 extern int register_android_graphics_Canvas(JNIEnv* env); 115 extern int register_android_graphics_CanvasProperty(JNIEnv* env); 116 extern int register_android_graphics_ColorFilter(JNIEnv* env); 117 extern int register_android_graphics_DrawFilter(JNIEnv* env); 118 extern int register_android_graphics_FontFamily(JNIEnv* env); 119 extern int register_android_graphics_LayerRasterizer(JNIEnv*); 120 extern int register_android_graphics_Matrix(JNIEnv* env); 121 extern int register_android_graphics_Paint(JNIEnv* env); 122 extern int register_android_graphics_Path(JNIEnv* env); 123 extern int register_android_graphics_PathMeasure(JNIEnv* env); 124 extern int register_android_graphics_Picture(JNIEnv*); 125 extern int register_android_graphics_PorterDuff(JNIEnv* env); 126 extern int register_android_graphics_Rasterizer(JNIEnv* env); 127 extern int register_android_graphics_Region(JNIEnv* env); 128 extern int register_android_graphics_SurfaceTexture(JNIEnv* env); 129 extern int register_android_graphics_Xfermode(JNIEnv* env); 130 extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env); 131 extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env); 132 extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env); 133 extern int register_android_view_DisplayEventReceiver(JNIEnv* env); 134 extern int register_android_view_DisplayListCanvas(JNIEnv* env); 135 extern int register_android_view_GraphicBuffer(JNIEnv* env); 136 extern int register_android_view_HardwareLayer(JNIEnv* env); 137 extern int register_android_view_RenderNode(JNIEnv* env); 138 extern int register_android_view_RenderNodeAnimator(JNIEnv* env); 139 extern int register_android_view_Surface(JNIEnv* env); 140 extern int register_android_view_SurfaceControl(JNIEnv* env); 141 extern int register_android_view_SurfaceSession(JNIEnv* env); 142 extern int register_android_view_TextureView(JNIEnv* env); 143 extern int register_android_view_ThreadedRenderer(JNIEnv* env); 144 extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env); 145 extern int register_android_database_CursorWindow(JNIEnv* env); 146 extern int register_android_database_SQLiteConnection(JNIEnv* env); 147 extern int register_android_database_SQLiteGlobal(JNIEnv* env); 148 extern int register_android_database_SQLiteDebug(JNIEnv* env); 149 extern int register_android_nio_utils(JNIEnv* env); 150 extern int register_android_os_Debug(JNIEnv* env); 151 extern int register_android_os_MessageQueue(JNIEnv* env); 152 extern int register_android_os_Parcel(JNIEnv* env); 153 extern int register_android_os_SELinux(JNIEnv* env); 154 extern int register_android_os_SystemProperties(JNIEnv *env); 155 extern int register_android_os_SystemClock(JNIEnv* env); 156 extern int register_android_os_Trace(JNIEnv* env); 157 extern int register_android_os_FileObserver(JNIEnv *env); 158 extern int register_android_os_UEventObserver(JNIEnv* env); 159 extern int register_android_os_MemoryFile(JNIEnv* env); 160 extern int register_android_net_LocalSocketImpl(JNIEnv* env); 161 extern int register_android_net_NetworkUtils(JNIEnv* env); 162 extern int register_android_net_TrafficStats(JNIEnv* env); 163 extern int register_android_text_AndroidCharacter(JNIEnv *env); 164 extern int register_android_text_StaticLayout(JNIEnv *env); 165 extern int register_android_text_AndroidBidi(JNIEnv *env); 166 extern int register_android_opengl_classes(JNIEnv *env); 167 extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env); 168 extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env); 169 extern int register_android_backup_BackupDataInput(JNIEnv *env); 170 extern int register_android_backup_BackupDataOutput(JNIEnv *env); 171 extern int register_android_backup_FileBackupHelperBase(JNIEnv *env); 172 extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env); 173 extern int register_android_app_backup_FullBackup(JNIEnv *env); 174 extern int register_android_app_ActivityThread(JNIEnv *env); 175 extern int register_android_app_NativeActivity(JNIEnv *env); 176 extern int register_android_media_RemoteDisplay(JNIEnv *env); 177 extern int register_android_view_InputChannel(JNIEnv* env); 178 extern int register_android_view_InputDevice(JNIEnv* env); 179 extern int register_android_view_InputEventReceiver(JNIEnv* env); 180 extern int register_android_view_InputEventSender(JNIEnv* env); 181 extern int register_android_view_InputQueue(JNIEnv* env); 182 extern int register_android_view_KeyCharacterMap(JNIEnv *env); 183 extern int register_android_view_KeyEvent(JNIEnv* env); 184 extern int register_android_view_MotionEvent(JNIEnv* env); 185 extern int register_android_view_PointerIcon(JNIEnv* env); 186 extern int register_android_view_VelocityTracker(JNIEnv* env); 187 extern int register_android_content_res_ObbScanner(JNIEnv* env); 188 extern int register_android_content_res_Configuration(JNIEnv* env); 189 extern int register_android_animation_PropertyValuesHolder(JNIEnv *env); 190 extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env); 191 extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env); 192 extern int register_com_android_internal_os_Zygote(JNIEnv *env); 193 extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env); 194 195 static AndroidRuntime* gCurRuntime = NULL; 196 197 /* 198 * Code written in the Java Programming Language calls here from main(). 199 */ 200 static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz) 201 { 202 gCurRuntime->onStarted(); 203 } 204 205 static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz) 206 { 207 gCurRuntime->onZygoteInit(); 208 } 209 210 static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env, 211 jobject clazz, jboolean exitWithoutCleanup) 212 { 213 gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup); 214 } 215 216 /* 217 * JNI registration. 218 */ 219 static JNINativeMethod gMethods[] = { 220 { "nativeFinishInit", "()V", 221 (void*) com_android_internal_os_RuntimeInit_nativeFinishInit }, 222 { "nativeZygoteInit", "()V", 223 (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit }, 224 { "nativeSetExitWithoutCleanup", "(Z)V", 225 (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup }, 226 }; 227 228 int register_com_android_internal_os_RuntimeInit(JNIEnv* env) 229 { 230 return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit", 231 gMethods, NELEM(gMethods)); 232 } 233 234 // ---------------------------------------------------------------------- 235 236 /*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL; 237 238 AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) : 239 mExitWithoutCleanup(false), 240 mArgBlockStart(argBlockStart), 241 mArgBlockLength(argBlockLength) 242 { 243 SkGraphics::Init(); 244 // There is also a global font cache, but its budget is specified by 245 // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT. 246 247 // Pre-allocate enough space to hold a fair number of options. 248 mOptions.setCapacity(20); 249 250 assert(gCurRuntime == NULL); // one per process 251 gCurRuntime = this; 252 } 253 254 AndroidRuntime::~AndroidRuntime() 255 { 256 SkGraphics::Term(); 257 } 258 259 /* 260 * Register native methods using JNI. 261 */ 262 /*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env, 263 const char* className, const JNINativeMethod* gMethods, int numMethods) 264 { 265 return jniRegisterNativeMethods(env, className, gMethods, numMethods); 266 } 267 268 void AndroidRuntime::setArgv0(const char* argv0) { 269 memset(mArgBlockStart, 0, mArgBlockLength); 270 strlcpy(mArgBlockStart, argv0, mArgBlockLength); 271 } 272 273 status_t AndroidRuntime::callMain(const String8& className, jclass clazz, 274 const Vector<String8>& args) 275 { 276 JNIEnv* env; 277 jmethodID methodId; 278 279 ALOGD("Calling main entry %s", className.string()); 280 281 env = getJNIEnv(); 282 if (clazz == NULL || env == NULL) { 283 return UNKNOWN_ERROR; 284 } 285 286 methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V"); 287 if (methodId == NULL) { 288 ALOGE("ERROR: could not find method %s.main(String[])\n", className.string()); 289 return UNKNOWN_ERROR; 290 } 291 292 /* 293 * We want to call main() with a String array with our arguments in it. 294 * Create an array and populate it. 295 */ 296 jclass stringClass; 297 jobjectArray strArray; 298 299 const size_t numArgs = args.size(); 300 stringClass = env->FindClass("java/lang/String"); 301 strArray = env->NewObjectArray(numArgs, stringClass, NULL); 302 303 for (size_t i = 0; i < numArgs; i++) { 304 jstring argStr = env->NewStringUTF(args[i].string()); 305 env->SetObjectArrayElement(strArray, i, argStr); 306 } 307 308 env->CallStaticVoidMethod(clazz, methodId, strArray); 309 return NO_ERROR; 310 } 311 312 /* 313 * The VM calls this through the "exit" hook. 314 */ 315 static void runtime_exit(int code) 316 { 317 gCurRuntime->exit(code); 318 } 319 320 /* 321 * The VM calls this through the "vfprintf" hook. 322 * 323 * We ignore "fp" and just write the results to the log file. 324 */ 325 static void runtime_vfprintf(FILE* fp, const char* format, va_list ap) 326 { 327 LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap); 328 } 329 330 /** 331 * The VM calls this when mutex contention debugging is enabled to 332 * determine whether or not the blocked thread was a "sensitive thread" 333 * for user responsiveness/smoothess. 334 * 335 * Our policy for this is whether or not we're tracing any StrictMode 336 * events on this thread (which we might've inherited via Binder calls 337 * into us) 338 */ 339 static bool runtime_isSensitiveThread() { 340 IPCThreadState* state = IPCThreadState::selfOrNull(); 341 return state && state->getStrictModePolicy() != 0; 342 } 343 344 static int hasDir(const char* dir) 345 { 346 struct stat s; 347 int res = stat(dir, &s); 348 if (res == 0) { 349 return S_ISDIR(s.st_mode); 350 } 351 return 0; 352 } 353 354 static bool hasFile(const char* file) { 355 struct stat s; 356 int res = stat(file, &s); 357 if (res == 0) { 358 return S_ISREG(s.st_mode); 359 } 360 return false; 361 } 362 363 // Convenience wrapper over the property API that returns an 364 // std::string. 365 std::string getProperty(const char* key, const char* defaultValue) { 366 std::vector<char> temp(PROPERTY_VALUE_MAX); 367 const int len = property_get(key, &temp[0], defaultValue); 368 if (len < 0) { 369 return ""; 370 } 371 return std::string(&temp[0], len); 372 } 373 374 /* 375 * Read the persistent locale. Inspects the following system properties 376 * (in order) and returns the first non-empty property in the list : 377 * 378 * (1) persist.sys.locale 379 * (2) persist.sys.language/country/localevar (country and localevar are 380 * inspected iff. language is non-empty. 381 * (3) ro.product.locale 382 * (4) ro.product.locale.language/region 383 * 384 * Note that we need to inspect persist.sys.language/country/localevar to 385 * preserve language settings for devices that are upgrading from Lollipop 386 * to M. The same goes for ro.product.locale.language/region as well. 387 */ 388 const std::string readLocale() 389 { 390 const std::string locale = getProperty("persist.sys.locale", ""); 391 if (!locale.empty()) { 392 return locale; 393 } 394 395 const std::string language = getProperty("persist.sys.language", ""); 396 if (!language.empty()) { 397 const std::string country = getProperty("persist.sys.country", ""); 398 const std::string variant = getProperty("persist.sys.localevar", ""); 399 400 std::string out = language; 401 if (!country.empty()) { 402 out = out + "-" + country; 403 } 404 405 if (!variant.empty()) { 406 out = out + "-" + variant; 407 } 408 409 return out; 410 } 411 412 const std::string productLocale = getProperty("ro.product.locale", ""); 413 if (!productLocale.empty()) { 414 return productLocale; 415 } 416 417 // If persist.sys.locale and ro.product.locale are missing, 418 // construct a locale value from the individual locale components. 419 const std::string productLanguage = getProperty("ro.product.locale.language", "en"); 420 const std::string productRegion = getProperty("ro.product.locale.region", "US"); 421 422 return productLanguage + "-" + productRegion; 423 } 424 425 void AndroidRuntime::addOption(const char* optionString, void* extraInfo) 426 { 427 JavaVMOption opt; 428 opt.optionString = optionString; 429 opt.extraInfo = extraInfo; 430 mOptions.add(opt); 431 } 432 433 /* 434 * Parse a property containing space-separated options that should be 435 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap". 436 * 437 * This will cut up "extraOptsBuf" as we chop it into individual options. 438 * 439 * If "quotingArg" is non-null, it is passed before each extra option in mOptions. 440 * 441 * Adds the strings, if any, to mOptions. 442 */ 443 void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg) 444 { 445 char* start = extraOptsBuf; 446 char* end = NULL; 447 while (*start != '\0') { 448 while (*start == ' ') /* skip leading whitespace */ 449 start++; 450 if (*start == '\0') /* was trailing ws, bail */ 451 break; 452 453 end = start+1; 454 while (*end != ' ' && *end != '\0') /* find end of token */ 455 end++; 456 if (*end == ' ') 457 *end++ = '\0'; /* mark end, advance to indicate more */ 458 459 if (quotingArg != NULL) { 460 addOption(quotingArg); 461 } 462 addOption(start); 463 start = end; 464 } 465 } 466 467 /* 468 * Reads a "property" into "buffer" with a default of "defaultArg". If 469 * the property is non-empty, it is treated as a runtime option such 470 * as "-Xmx32m". 471 * 472 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 473 * 474 * If an argument is found, it is added to mOptions. 475 * 476 * If an option is found, it is added to mOptions and true is 477 * returned. Otherwise false is returned. 478 */ 479 bool AndroidRuntime::parseRuntimeOption(const char* property, 480 char* buffer, 481 const char* runtimeArg, 482 const char* defaultArg) 483 { 484 strcpy(buffer, runtimeArg); 485 size_t runtimeArgLen = strlen(runtimeArg); 486 property_get(property, buffer+runtimeArgLen, defaultArg); 487 if (buffer[runtimeArgLen] == '\0') { 488 return false; 489 } 490 addOption(buffer); 491 return true; 492 } 493 494 /* 495 * Reads a "property" into "buffer". If the property is non-empty, it 496 * is treated as a dex2oat compiler option that should be 497 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none". 498 * 499 * The "compilerArg" is a prefix for the option such as "--compiler-filter=". 500 * 501 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 502 * 503 * If an option is found, it is added to mOptions and true is 504 * returned. Otherwise false is returned. 505 */ 506 bool AndroidRuntime::parseCompilerOption(const char* property, 507 char* buffer, 508 const char* compilerArg, 509 const char* quotingArg) 510 { 511 strcpy(buffer, compilerArg); 512 size_t compilerArgLen = strlen(compilerArg); 513 property_get(property, buffer+compilerArgLen, ""); 514 if (buffer[compilerArgLen] == '\0') { 515 return false; 516 } 517 addOption(quotingArg); 518 addOption(buffer); 519 return true; 520 } 521 522 /* 523 * Reads a "property" into "buffer". If the property is non-empty, it 524 * is treated as a dex2oat compiler runtime option that should be 525 * passed as a quoted option, e.g. "-Ximage-compiler-option 526 * --runtime-arg -Ximage-compiler-option -Xmx32m". 527 * 528 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 529 * 530 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 531 * 532 * If an option is found, it is added to mOptions and true is 533 * returned. Otherwise false is returned. 534 */ 535 bool AndroidRuntime::parseCompilerRuntimeOption(const char* property, 536 char* buffer, 537 const char* runtimeArg, 538 const char* quotingArg) 539 { 540 strcpy(buffer, runtimeArg); 541 size_t runtimeArgLen = strlen(runtimeArg); 542 property_get(property, buffer+runtimeArgLen, ""); 543 if (buffer[runtimeArgLen] == '\0') { 544 return false; 545 } 546 addOption(quotingArg); 547 addOption("--runtime-arg"); 548 addOption(quotingArg); 549 addOption(buffer); 550 return true; 551 } 552 553 /* 554 * Start the Dalvik Virtual Machine. 555 * 556 * Various arguments, most determined by system properties, are passed in. 557 * The "mOptions" vector is updated. 558 * 559 * CAUTION: when adding options in here, be careful not to put the 560 * char buffer inside a nested scope. Adding the buffer to the 561 * options using mOptions.add() does not copy the buffer, so if the 562 * buffer goes out of scope the option may be overwritten. It's best 563 * to put the buffer at the top of the function so that it is more 564 * unlikely that someone will surround it in a scope at a later time 565 * and thus introduce a bug. 566 * 567 * Returns 0 on success. 568 */ 569 int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote) 570 { 571 JavaVMInitArgs initArgs; 572 char propBuf[PROPERTY_VALUE_MAX]; 573 char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX]; 574 char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX]; 575 char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 576 char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 577 char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX]; 578 char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX]; 579 char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX]; 580 char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX]; 581 char jitcodecachesizeOptsBuf[sizeof("-Xjitcodecachesize:")-1 + PROPERTY_VALUE_MAX]; 582 char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX]; 583 char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX]; 584 char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX]; 585 char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX]; 586 char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX]; 587 char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 588 char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 589 char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 590 char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 591 char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 592 char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 593 char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 594 char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 595 char dex2oat_isa_variant_key[PROPERTY_KEY_MAX]; 596 char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX]; 597 char dex2oat_isa_features_key[PROPERTY_KEY_MAX]; 598 char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX]; 599 char dex2oatFlagsBuf[PROPERTY_VALUE_MAX]; 600 char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX]; 601 char extraOptsBuf[PROPERTY_VALUE_MAX]; 602 char voldDecryptBuf[PROPERTY_VALUE_MAX]; 603 enum { 604 kEMDefault, 605 kEMIntPortable, 606 kEMIntFast, 607 kEMJitCompiler, 608 } executionMode = kEMDefault; 609 char profilePeriod[sizeof("-Xprofile-period:")-1 + PROPERTY_VALUE_MAX]; 610 char profileDuration[sizeof("-Xprofile-duration:")-1 + PROPERTY_VALUE_MAX]; 611 char profileInterval[sizeof("-Xprofile-interval:")-1 + PROPERTY_VALUE_MAX]; 612 char profileBackoff[sizeof("-Xprofile-backoff:")-1 + PROPERTY_VALUE_MAX]; 613 char profileTopKThreshold[sizeof("-Xprofile-top-k-threshold:")-1 + PROPERTY_VALUE_MAX]; 614 char profileTopKChangeThreshold[sizeof("-Xprofile-top-k-change-threshold:")-1 + 615 PROPERTY_VALUE_MAX]; 616 char profileType[sizeof("-Xprofile-type:")-1 + PROPERTY_VALUE_MAX]; 617 char profileMaxStackDepth[sizeof("-Xprofile-max-stack-depth:")-1 + PROPERTY_VALUE_MAX]; 618 char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX]; 619 char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX]; 620 char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX]; 621 char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX]; 622 char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX]; 623 char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX]; 624 char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX]; 625 626 bool checkJni = false; 627 property_get("dalvik.vm.checkjni", propBuf, ""); 628 if (strcmp(propBuf, "true") == 0) { 629 checkJni = true; 630 } else if (strcmp(propBuf, "false") != 0) { 631 /* property is neither true nor false; fall back on kernel parameter */ 632 property_get("ro.kernel.android.checkjni", propBuf, ""); 633 if (propBuf[0] == '1') { 634 checkJni = true; 635 } 636 } 637 ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF"); 638 if (checkJni) { 639 /* extended JNI checking */ 640 addOption("-Xcheck:jni"); 641 642 /* with -Xcheck:jni, this provides a JNI function call trace */ 643 //addOption("-verbose:jni"); 644 } 645 646 property_get("dalvik.vm.execution-mode", propBuf, ""); 647 if (strcmp(propBuf, "int:portable") == 0) { 648 executionMode = kEMIntPortable; 649 } else if (strcmp(propBuf, "int:fast") == 0) { 650 executionMode = kEMIntFast; 651 } else if (strcmp(propBuf, "int:jit") == 0) { 652 executionMode = kEMJitCompiler; 653 } 654 655 parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:"); 656 657 strcpy(jniOptsBuf, "-Xjniopts:"); 658 if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) { 659 ALOGI("JNI options: '%s'\n", jniOptsBuf); 660 } 661 662 /* route exit() to our handler */ 663 addOption("exit", (void*) runtime_exit); 664 665 /* route fprintf() to our handler */ 666 addOption("vfprintf", (void*) runtime_vfprintf); 667 668 /* register the framework-specific "is sensitive thread" hook */ 669 addOption("sensitiveThread", (void*) runtime_isSensitiveThread); 670 671 /* enable verbose; standard options are { jni, gc, class } */ 672 //addOption("-verbose:jni"); 673 addOption("-verbose:gc"); 674 //addOption("-verbose:class"); 675 676 /* 677 * The default starting and maximum size of the heap. Larger 678 * values should be specified in a product property override. 679 */ 680 parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m"); 681 parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m"); 682 683 parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit="); 684 parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree="); 685 parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree="); 686 parseRuntimeOption("dalvik.vm.heaptargetutilization", 687 heaptargetutilizationOptsBuf, 688 "-XX:HeapTargetUtilization="); 689 690 /* 691 * JIT related options. 692 */ 693 parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:"); 694 parseRuntimeOption("dalvik.vm.jitcodecachesize", jitcodecachesizeOptsBuf, "-Xjitcodecachesize:"); 695 parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:"); 696 697 property_get("ro.config.low_ram", propBuf, ""); 698 if (strcmp(propBuf, "true") == 0) { 699 addOption("-XX:LowMemoryMode"); 700 } 701 702 parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:"); 703 parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC="); 704 705 /* 706 * Enable debugging only for apps forked from zygote. 707 * Set suspend=y to pause during VM init and use android ADB transport. 708 */ 709 if (zygote) { 710 addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y"); 711 } 712 713 parseRuntimeOption("dalvik.vm.lockprof.threshold", 714 lockProfThresholdBuf, 715 "-Xlockprofthreshold:"); 716 717 if (executionMode == kEMIntPortable) { 718 addOption("-Xint:portable"); 719 } else if (executionMode == kEMIntFast) { 720 addOption("-Xint:fast"); 721 } else if (executionMode == kEMJitCompiler) { 722 addOption("-Xint:jit"); 723 } 724 725 // If we are booting without the real /data, don't spend time compiling. 726 property_get("vold.decrypt", voldDecryptBuf, ""); 727 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || 728 (strcmp(voldDecryptBuf, "1") == 0)); 729 730 // Extra options for boot.art/boot.oat image generation. 731 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, 732 "-Xms", "-Ximage-compiler-option"); 733 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, 734 "-Xmx", "-Ximage-compiler-option"); 735 if (skip_compilation) { 736 addOption("-Ximage-compiler-option"); 737 addOption("--compiler-filter=verify-none"); 738 } else { 739 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, 740 "--compiler-filter=", "-Ximage-compiler-option"); 741 } 742 743 // Make sure there is a preloaded-classes file. 744 if (!hasFile("/system/etc/preloaded-classes")) { 745 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n", 746 strerror(errno)); 747 return -1; 748 } 749 addOption("-Ximage-compiler-option"); 750 addOption("--image-classes=/system/etc/preloaded-classes"); 751 752 // If there is a compiled-classes file, push it. 753 if (hasFile("/system/etc/compiled-classes")) { 754 addOption("-Ximage-compiler-option"); 755 addOption("--compiled-classes=/system/etc/compiled-classes"); 756 } 757 758 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); 759 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); 760 761 // Extra options for DexClassLoader. 762 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, 763 "-Xms", "-Xcompiler-option"); 764 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, 765 "-Xmx", "-Xcompiler-option"); 766 if (skip_compilation) { 767 addOption("-Xcompiler-option"); 768 addOption("--compiler-filter=verify-none"); 769 770 // We skip compilation when a minimal runtime is brought up for decryption. In that case 771 // /data is temporarily backed by a tmpfs, which is usually small. 772 // If the system image contains prebuilts, they will be relocated into the tmpfs. In this 773 // specific situation it is acceptable to *not* relocate and run out of the prebuilts 774 // directly instead. 775 addOption("--runtime-arg"); 776 addOption("-Xnorelocate"); 777 } else { 778 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, 779 "--compiler-filter=", "-Xcompiler-option"); 780 } 781 parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option"); 782 parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j", 783 "-Ximage-compiler-option"); 784 785 // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to 786 // pass the instruction-set-features/variant as an image-compiler-option. 787 // TODO: Find a better way for the instruction-set. 788 #if defined(__arm__) 789 constexpr const char* instruction_set = "arm"; 790 #elif defined(__aarch64__) 791 constexpr const char* instruction_set = "arm64"; 792 #elif defined(__mips__) && !defined(__LP64__) 793 constexpr const char* instruction_set = "mips"; 794 #elif defined(__mips__) && defined(__LP64__) 795 constexpr const char* instruction_set = "mips64"; 796 #elif defined(__i386__) 797 constexpr const char* instruction_set = "x86"; 798 #elif defined(__x86_64__) 799 constexpr const char* instruction_set = "x86_64"; 800 #else 801 constexpr const char* instruction_set = "unknown"; 802 #endif 803 // Note: it is OK to reuse the buffer, as the values are exactly the same between 804 // * compiler-option, used for runtime compilation (DexClassLoader) 805 // * image-compiler-option, used for boot-image compilation on device 806 807 // Copy the variant. 808 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set); 809 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 810 "--instruction-set-variant=", "-Ximage-compiler-option"); 811 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 812 "--instruction-set-variant=", "-Xcompiler-option"); 813 // Copy the features. 814 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set); 815 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 816 "--instruction-set-features=", "-Ximage-compiler-option"); 817 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 818 "--instruction-set-features=", "-Xcompiler-option"); 819 820 821 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); 822 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); 823 824 /* extra options; parse this late so it overrides others */ 825 property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); 826 parseExtraOpts(extraOptsBuf, NULL); 827 828 /* Set the properties for locale */ 829 { 830 strcpy(localeOption, "-Duser.locale="); 831 const std::string locale = readLocale(); 832 strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX); 833 addOption(localeOption); 834 } 835 836 /* 837 * Set profiler options 838 */ 839 // Whether or not the profiler should be enabled. 840 property_get("dalvik.vm.profiler", propBuf, "0"); 841 if (propBuf[0] == '1') { 842 addOption("-Xenable-profiler"); 843 } 844 845 // Whether the profile should start upon app startup or be delayed by some random offset 846 // (in seconds) that is bound between 0 and a fixed value. 847 property_get("dalvik.vm.profile.start-immed", propBuf, "0"); 848 if (propBuf[0] == '1') { 849 addOption("-Xprofile-start-immediately"); 850 } 851 852 // Number of seconds during profile runs. 853 parseRuntimeOption("dalvik.vm.profile.period-secs", profilePeriod, "-Xprofile-period:"); 854 855 // Length of each profile run (seconds). 856 parseRuntimeOption("dalvik.vm.profile.duration-secs", 857 profileDuration, 858 "-Xprofile-duration:"); 859 860 // Polling interval during profile run (microseconds). 861 parseRuntimeOption("dalvik.vm.profile.interval-us", profileInterval, "-Xprofile-interval:"); 862 863 // Coefficient for period backoff. The the period is multiplied 864 // by this value after each profile run. 865 parseRuntimeOption("dalvik.vm.profile.backoff-coeff", profileBackoff, "-Xprofile-backoff:"); 866 867 // Top K% of samples that are considered relevant when 868 // deciding if the app should be recompiled. 869 parseRuntimeOption("dalvik.vm.profile.top-k-thr", 870 profileTopKThreshold, 871 "-Xprofile-top-k-threshold:"); 872 873 // The threshold after which a change in the structure of the 874 // top K% profiled samples becomes significant and triggers 875 // recompilation. A change in profile is considered 876 // significant if X% (top-k-change-threshold) of the top K% 877 // (top-k-threshold property) samples has changed. 878 parseRuntimeOption("dalvik.vm.profile.top-k-ch-thr", 879 profileTopKChangeThreshold, 880 "-Xprofile-top-k-change-threshold:"); 881 882 // Type of profile data. 883 parseRuntimeOption("dalvik.vm.profiler.type", profileType, "-Xprofile-type:"); 884 885 // Depth of bounded stack data 886 parseRuntimeOption("dalvik.vm.profile.stack-depth", 887 profileMaxStackDepth, 888 "-Xprofile-max-stack-depth:"); 889 890 /* 891 * Tracing options. 892 */ 893 property_get("dalvik.vm.method-trace", propBuf, "false"); 894 if (strcmp(propBuf, "true") == 0) { 895 addOption("-Xmethod-trace"); 896 parseRuntimeOption("dalvik.vm.method-trace-file", 897 methodTraceFileBuf, 898 "-Xmethod-trace-file:"); 899 parseRuntimeOption("dalvik.vm.method-trace-file-siz", 900 methodTraceFileSizeBuf, 901 "-Xmethod-trace-file-size:"); 902 property_get("dalvik.vm.method-trace-stream", propBuf, "false"); 903 if (strcmp(propBuf, "true") == 0) { 904 addOption("-Xmethod-trace-stream"); 905 } 906 } 907 908 // Native bridge library. "0" means that native bridge is disabled. 909 property_get("ro.dalvik.vm.native.bridge", propBuf, ""); 910 if (propBuf[0] == '\0') { 911 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); 912 } else if (strcmp(propBuf, "0") != 0) { 913 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, 914 "-XX:NativeBridge=%s", propBuf); 915 addOption(nativeBridgeLibrary); 916 } 917 918 #if defined(__LP64__) 919 const char* cpu_abilist_property_name = "ro.product.cpu.abilist64"; 920 #else 921 const char* cpu_abilist_property_name = "ro.product.cpu.abilist32"; 922 #endif // defined(__LP64__) 923 property_get(cpu_abilist_property_name, propBuf, ""); 924 if (propBuf[0] == '\0') { 925 ALOGE("%s is not expected to be empty", cpu_abilist_property_name); 926 return -1; 927 } 928 snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf); 929 addOption(cpuAbiListBuf); 930 931 // Dalvik-cache pruning counter. 932 parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf, 933 "-Xzygote-max-boot-retry="); 934 935 /* 936 * When running with debug.generate-debug-info, add --generate-debug-info to 937 * the compiler options so that the boot image, if it is compiled on device, 938 * will include native debugging information. 939 */ 940 property_get("debug.generate-debug-info", propBuf, ""); 941 if (strcmp(propBuf, "true") == 0) { 942 addOption("-Xcompiler-option"); 943 addOption("--generate-debug-info"); 944 addOption("-Ximage-compiler-option"); 945 addOption("--generate-debug-info"); 946 } 947 948 /* 949 * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will 950 * contain the fingerprint and can be parsed. 951 */ 952 parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:"); 953 954 initArgs.version = JNI_VERSION_1_4; 955 initArgs.options = mOptions.editArray(); 956 initArgs.nOptions = mOptions.size(); 957 initArgs.ignoreUnrecognized = JNI_FALSE; 958 959 /* 960 * Initialize the VM. 961 * 962 * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. 963 * If this call succeeds, the VM is ready, and we can start issuing 964 * JNI calls. 965 */ 966 if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { 967 ALOGE("JNI_CreateJavaVM failed\n"); 968 return -1; 969 } 970 971 return 0; 972 } 973 974 char* AndroidRuntime::toSlashClassName(const char* className) 975 { 976 char* result = strdup(className); 977 for (char* cp = result; *cp != '\0'; cp++) { 978 if (*cp == '.') { 979 *cp = '/'; 980 } 981 } 982 return result; 983 } 984 985 /** Create a Java string from an ASCII or Latin-1 string */ 986 jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { 987 if (!bytes) return NULL; 988 int length = strlen(bytes); 989 jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); 990 if (!buffer) return NULL; 991 jchar* chp = buffer; 992 for (int i = 0; i < length; i++) { 993 *chp++ = *bytes++; 994 } 995 return env->NewString(buffer, length); 996 } 997 998 999 /* 1000 * Start the Android runtime. This involves starting the virtual machine 1001 * and calling the "static void main(String[] args)" method in the class 1002 * named by "className". 1003 * 1004 * Passes the main function two arguments, the class name and the specified 1005 * options string. 1006 */ 1007 void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote) 1008 { 1009 ALOGD(">>>>>> START %s uid %d <<<<<<\n", 1010 className != NULL ? className : "(unknown)", getuid()); 1011 1012 static const String8 startSystemServer("start-system-server"); 1013 1014 /* 1015 * 'startSystemServer == true' means runtime is obsolete and not run from 1016 * init.rc anymore, so we print out the boot start event here. 1017 */ 1018 for (size_t i = 0; i < options.size(); ++i) { 1019 if (options[i] == startSystemServer) { 1020 /* track our progress through the boot sequence */ 1021 const int LOG_BOOT_PROGRESS_START = 3000; 1022 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); 1023 } 1024 } 1025 1026 const char* rootDir = getenv("ANDROID_ROOT"); 1027 if (rootDir == NULL) { 1028 rootDir = "/system"; 1029 if (!hasDir("/system")) { 1030 LOG_FATAL("No root directory specified, and /android does not exist."); 1031 return; 1032 } 1033 setenv("ANDROID_ROOT", rootDir, 1); 1034 } 1035 1036 //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); 1037 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); 1038 1039 /* start the virtual machine */ 1040 JniInvocation jni_invocation; 1041 jni_invocation.Init(NULL); 1042 JNIEnv* env; 1043 if (startVm(&mJavaVM, &env, zygote) != 0) { 1044 return; 1045 } 1046 onVmCreated(env); 1047 1048 /* 1049 * Register android functions. 1050 */ 1051 if (startReg(env) < 0) { 1052 ALOGE("Unable to register all android natives\n"); 1053 return; 1054 } 1055 1056 /* 1057 * We want to call main() with a String array with arguments in it. 1058 * At present we have two arguments, the class name and an option string. 1059 * Create an array to hold them. 1060 */ 1061 jclass stringClass; 1062 jobjectArray strArray; 1063 jstring classNameStr; 1064 1065 stringClass = env->FindClass("java/lang/String"); 1066 assert(stringClass != NULL); 1067 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); 1068 assert(strArray != NULL); 1069 classNameStr = env->NewStringUTF(className); 1070 assert(classNameStr != NULL); 1071 env->SetObjectArrayElement(strArray, 0, classNameStr); 1072 1073 for (size_t i = 0; i < options.size(); ++i) { 1074 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); 1075 assert(optionsStr != NULL); 1076 env->SetObjectArrayElement(strArray, i + 1, optionsStr); 1077 } 1078 1079 /* 1080 * Start VM. This thread becomes the main thread of the VM, and will 1081 * not return until the VM exits. 1082 */ 1083 char* slashClassName = toSlashClassName(className); 1084 jclass startClass = env->FindClass(slashClassName); 1085 if (startClass == NULL) { 1086 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); 1087 /* keep going */ 1088 } else { 1089 jmethodID startMeth = env->GetStaticMethodID(startClass, "main", 1090 "([Ljava/lang/String;)V"); 1091 if (startMeth == NULL) { 1092 ALOGE("JavaVM unable to find main() in '%s'\n", className); 1093 /* keep going */ 1094 } else { 1095 env->CallStaticVoidMethod(startClass, startMeth, strArray); 1096 1097 #if 0 1098 if (env->ExceptionCheck()) 1099 threadExitUncaughtException(env); 1100 #endif 1101 } 1102 } 1103 free(slashClassName); 1104 1105 ALOGD("Shutting down VM\n"); 1106 if (mJavaVM->DetachCurrentThread() != JNI_OK) 1107 ALOGW("Warning: unable to detach main thread\n"); 1108 if (mJavaVM->DestroyJavaVM() != 0) 1109 ALOGW("Warning: VM did not shut down cleanly\n"); 1110 } 1111 1112 void AndroidRuntime::exit(int code) 1113 { 1114 if (mExitWithoutCleanup) { 1115 ALOGI("VM exiting with result code %d, cleanup skipped.", code); 1116 ::_exit(code); 1117 } else { 1118 ALOGI("VM exiting with result code %d.", code); 1119 onExit(code); 1120 ::exit(code); 1121 } 1122 } 1123 1124 void AndroidRuntime::onVmCreated(JNIEnv* env) 1125 { 1126 // If AndroidRuntime had anything to do here, we'd have done it in 'start'. 1127 } 1128 1129 /* 1130 * Get the JNIEnv pointer for this thread. 1131 * 1132 * Returns NULL if the slot wasn't allocated or populated. 1133 */ 1134 /*static*/ JNIEnv* AndroidRuntime::getJNIEnv() 1135 { 1136 JNIEnv* env; 1137 JavaVM* vm = AndroidRuntime::getJavaVM(); 1138 assert(vm != NULL); 1139 1140 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) 1141 return NULL; 1142 return env; 1143 } 1144 1145 /* 1146 * Makes the current thread visible to the VM. 1147 * 1148 * The JNIEnv pointer returned is only valid for the current thread, and 1149 * thus must be tucked into thread-local storage. 1150 */ 1151 static int javaAttachThread(const char* threadName, JNIEnv** pEnv) 1152 { 1153 JavaVMAttachArgs args; 1154 JavaVM* vm; 1155 jint result; 1156 1157 vm = AndroidRuntime::getJavaVM(); 1158 assert(vm != NULL); 1159 1160 args.version = JNI_VERSION_1_4; 1161 args.name = (char*) threadName; 1162 args.group = NULL; 1163 1164 result = vm->AttachCurrentThread(pEnv, (void*) &args); 1165 if (result != JNI_OK) 1166 ALOGI("NOTE: attach of thread '%s' failed\n", threadName); 1167 1168 return result; 1169 } 1170 1171 /* 1172 * Detach the current thread from the set visible to the VM. 1173 */ 1174 static int javaDetachThread(void) 1175 { 1176 JavaVM* vm; 1177 jint result; 1178 1179 vm = AndroidRuntime::getJavaVM(); 1180 assert(vm != NULL); 1181 1182 result = vm->DetachCurrentThread(); 1183 if (result != JNI_OK) 1184 ALOGE("ERROR: thread detach failed\n"); 1185 return result; 1186 } 1187 1188 /* 1189 * When starting a native thread that will be visible from the VM, we 1190 * bounce through this to get the right attach/detach action. 1191 * Note that this function calls free(args) 1192 */ 1193 /*static*/ int AndroidRuntime::javaThreadShell(void* args) { 1194 void* start = ((void**)args)[0]; 1195 void* userData = ((void **)args)[1]; 1196 char* name = (char*) ((void **)args)[2]; // we own this storage 1197 free(args); 1198 JNIEnv* env; 1199 int result; 1200 1201 /* hook us into the VM */ 1202 if (javaAttachThread(name, &env) != JNI_OK) 1203 return -1; 1204 1205 /* start the thread running */ 1206 result = (*(android_thread_func_t)start)(userData); 1207 1208 /* unhook us */ 1209 javaDetachThread(); 1210 free(name); 1211 1212 return result; 1213 } 1214 1215 /* 1216 * This is invoked from androidCreateThreadEtc() via the callback 1217 * set with androidSetCreateThreadFunc(). 1218 * 1219 * We need to create the new thread in such a way that it gets hooked 1220 * into the VM before it really starts executing. 1221 */ 1222 /*static*/ int AndroidRuntime::javaCreateThreadEtc( 1223 android_thread_func_t entryFunction, 1224 void* userData, 1225 const char* threadName, 1226 int32_t threadPriority, 1227 size_t threadStackSize, 1228 android_thread_id_t* threadId) 1229 { 1230 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free 1231 int result; 1232 1233 if (!threadName) 1234 threadName = "unnamed thread"; 1235 1236 args[0] = (void*) entryFunction; 1237 args[1] = userData; 1238 args[2] = (void*) strdup(threadName); // javaThreadShell must free 1239 1240 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, 1241 threadName, threadPriority, threadStackSize, threadId); 1242 return result; 1243 } 1244 1245 /* 1246 * Create a thread that is visible from the VM. 1247 * 1248 * This is called from elsewhere in the library. 1249 */ 1250 /*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, 1251 void (*start)(void *), void* arg) 1252 { 1253 android_thread_id_t threadId = 0; 1254 javaCreateThreadEtc((android_thread_func_t) start, arg, name, 1255 ANDROID_PRIORITY_DEFAULT, 0, &threadId); 1256 return threadId; 1257 } 1258 1259 #if 0 1260 static void quickTest(void* arg) 1261 { 1262 const char* str = (const char*) arg; 1263 1264 printf("In quickTest: %s\n", str); 1265 } 1266 #endif 1267 1268 #ifdef NDEBUG 1269 #define REG_JNI(name) { name } 1270 struct RegJNIRec { 1271 int (*mProc)(JNIEnv*); 1272 }; 1273 #else 1274 #define REG_JNI(name) { name, #name } 1275 struct RegJNIRec { 1276 int (*mProc)(JNIEnv*); 1277 const char* mName; 1278 }; 1279 #endif 1280 1281 typedef void (*RegJAMProc)(); 1282 1283 static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) 1284 { 1285 for (size_t i = 0; i < count; i++) { 1286 if (array[i].mProc(env) < 0) { 1287 #ifndef NDEBUG 1288 ALOGD("----------!!! %s failed to load\n", array[i].mName); 1289 #endif 1290 return -1; 1291 } 1292 } 1293 return 0; 1294 } 1295 1296 static const RegJNIRec gRegJNI[] = { 1297 REG_JNI(register_com_android_internal_os_RuntimeInit), 1298 REG_JNI(register_android_os_SystemClock), 1299 REG_JNI(register_android_util_EventLog), 1300 REG_JNI(register_android_util_Log), 1301 REG_JNI(register_android_content_AssetManager), 1302 REG_JNI(register_android_content_StringBlock), 1303 REG_JNI(register_android_content_XmlBlock), 1304 REG_JNI(register_android_emoji_EmojiFactory), 1305 REG_JNI(register_android_text_AndroidCharacter), 1306 REG_JNI(register_android_text_StaticLayout), 1307 REG_JNI(register_android_text_AndroidBidi), 1308 REG_JNI(register_android_view_InputDevice), 1309 REG_JNI(register_android_view_KeyCharacterMap), 1310 REG_JNI(register_android_os_Process), 1311 REG_JNI(register_android_os_SystemProperties), 1312 REG_JNI(register_android_os_Binder), 1313 REG_JNI(register_android_os_Parcel), 1314 REG_JNI(register_android_nio_utils), 1315 REG_JNI(register_android_graphics_Graphics), 1316 REG_JNI(register_android_view_DisplayEventReceiver), 1317 REG_JNI(register_android_view_RenderNode), 1318 REG_JNI(register_android_view_RenderNodeAnimator), 1319 REG_JNI(register_android_view_GraphicBuffer), 1320 REG_JNI(register_android_view_DisplayListCanvas), 1321 REG_JNI(register_android_view_HardwareLayer), 1322 REG_JNI(register_android_view_ThreadedRenderer), 1323 REG_JNI(register_android_view_Surface), 1324 REG_JNI(register_android_view_SurfaceControl), 1325 REG_JNI(register_android_view_SurfaceSession), 1326 REG_JNI(register_android_view_TextureView), 1327 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), 1328 REG_JNI(register_com_google_android_gles_jni_EGLImpl), 1329 REG_JNI(register_com_google_android_gles_jni_GLImpl), 1330 REG_JNI(register_android_opengl_jni_EGL14), 1331 REG_JNI(register_android_opengl_jni_EGLExt), 1332 REG_JNI(register_android_opengl_jni_GLES10), 1333 REG_JNI(register_android_opengl_jni_GLES10Ext), 1334 REG_JNI(register_android_opengl_jni_GLES11), 1335 REG_JNI(register_android_opengl_jni_GLES11Ext), 1336 REG_JNI(register_android_opengl_jni_GLES20), 1337 REG_JNI(register_android_opengl_jni_GLES30), 1338 REG_JNI(register_android_opengl_jni_GLES31), 1339 REG_JNI(register_android_opengl_jni_GLES31Ext), 1340 1341 REG_JNI(register_android_graphics_Bitmap), 1342 REG_JNI(register_android_graphics_BitmapFactory), 1343 REG_JNI(register_android_graphics_BitmapRegionDecoder), 1344 REG_JNI(register_android_graphics_Camera), 1345 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), 1346 REG_JNI(register_android_graphics_Canvas), 1347 REG_JNI(register_android_graphics_CanvasProperty), 1348 REG_JNI(register_android_graphics_ColorFilter), 1349 REG_JNI(register_android_graphics_DrawFilter), 1350 REG_JNI(register_android_graphics_FontFamily), 1351 REG_JNI(register_android_graphics_Interpolator), 1352 REG_JNI(register_android_graphics_LayerRasterizer), 1353 REG_JNI(register_android_graphics_MaskFilter), 1354 REG_JNI(register_android_graphics_Matrix), 1355 REG_JNI(register_android_graphics_Movie), 1356 REG_JNI(register_android_graphics_NinePatch), 1357 REG_JNI(register_android_graphics_Paint), 1358 REG_JNI(register_android_graphics_Path), 1359 REG_JNI(register_android_graphics_PathMeasure), 1360 REG_JNI(register_android_graphics_PathEffect), 1361 REG_JNI(register_android_graphics_Picture), 1362 REG_JNI(register_android_graphics_PorterDuff), 1363 REG_JNI(register_android_graphics_Rasterizer), 1364 REG_JNI(register_android_graphics_Region), 1365 REG_JNI(register_android_graphics_Shader), 1366 REG_JNI(register_android_graphics_SurfaceTexture), 1367 REG_JNI(register_android_graphics_Typeface), 1368 REG_JNI(register_android_graphics_Xfermode), 1369 REG_JNI(register_android_graphics_YuvImage), 1370 REG_JNI(register_android_graphics_pdf_PdfDocument), 1371 REG_JNI(register_android_graphics_pdf_PdfEditor), 1372 REG_JNI(register_android_graphics_pdf_PdfRenderer), 1373 1374 REG_JNI(register_android_database_CursorWindow), 1375 REG_JNI(register_android_database_SQLiteConnection), 1376 REG_JNI(register_android_database_SQLiteGlobal), 1377 REG_JNI(register_android_database_SQLiteDebug), 1378 REG_JNI(register_android_os_Debug), 1379 REG_JNI(register_android_os_FileObserver), 1380 REG_JNI(register_android_os_MessageQueue), 1381 REG_JNI(register_android_os_SELinux), 1382 REG_JNI(register_android_os_Trace), 1383 REG_JNI(register_android_os_UEventObserver), 1384 REG_JNI(register_android_net_LocalSocketImpl), 1385 REG_JNI(register_android_net_NetworkUtils), 1386 REG_JNI(register_android_net_TrafficStats), 1387 REG_JNI(register_android_os_MemoryFile), 1388 REG_JNI(register_com_android_internal_os_Zygote), 1389 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), 1390 REG_JNI(register_android_hardware_Camera), 1391 REG_JNI(register_android_hardware_camera2_CameraMetadata), 1392 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), 1393 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), 1394 REG_JNI(register_android_hardware_camera2_DngCreator), 1395 REG_JNI(register_android_hardware_Radio), 1396 REG_JNI(register_android_hardware_SensorManager), 1397 REG_JNI(register_android_hardware_SerialPort), 1398 REG_JNI(register_android_hardware_SoundTrigger), 1399 REG_JNI(register_android_hardware_UsbDevice), 1400 REG_JNI(register_android_hardware_UsbDeviceConnection), 1401 REG_JNI(register_android_hardware_UsbRequest), 1402 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), 1403 REG_JNI(register_android_media_AudioRecord), 1404 REG_JNI(register_android_media_AudioSystem), 1405 REG_JNI(register_android_media_AudioTrack), 1406 REG_JNI(register_android_media_JetPlayer), 1407 REG_JNI(register_android_media_RemoteDisplay), 1408 REG_JNI(register_android_media_ToneGenerator), 1409 1410 REG_JNI(register_android_opengl_classes), 1411 REG_JNI(register_android_server_NetworkManagementSocketTagger), 1412 REG_JNI(register_android_ddm_DdmHandleNativeHeap), 1413 REG_JNI(register_android_backup_BackupDataInput), 1414 REG_JNI(register_android_backup_BackupDataOutput), 1415 REG_JNI(register_android_backup_FileBackupHelperBase), 1416 REG_JNI(register_android_backup_BackupHelperDispatcher), 1417 REG_JNI(register_android_app_backup_FullBackup), 1418 REG_JNI(register_android_app_ActivityThread), 1419 REG_JNI(register_android_app_NativeActivity), 1420 REG_JNI(register_android_view_InputChannel), 1421 REG_JNI(register_android_view_InputEventReceiver), 1422 REG_JNI(register_android_view_InputEventSender), 1423 REG_JNI(register_android_view_InputQueue), 1424 REG_JNI(register_android_view_KeyEvent), 1425 REG_JNI(register_android_view_MotionEvent), 1426 REG_JNI(register_android_view_PointerIcon), 1427 REG_JNI(register_android_view_VelocityTracker), 1428 1429 REG_JNI(register_android_content_res_ObbScanner), 1430 REG_JNI(register_android_content_res_Configuration), 1431 1432 REG_JNI(register_android_animation_PropertyValuesHolder), 1433 REG_JNI(register_com_android_internal_content_NativeLibraryHelper), 1434 REG_JNI(register_com_android_internal_net_NetworkStatsFactory), 1435 }; 1436 1437 /* 1438 * Register android native functions with the VM. 1439 */ 1440 /*static*/ int AndroidRuntime::startReg(JNIEnv* env) 1441 { 1442 /* 1443 * This hook causes all future threads created in this process to be 1444 * attached to the JavaVM. (This needs to go away in favor of JNI 1445 * Attach calls.) 1446 */ 1447 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); 1448 1449 ALOGV("--- registering native functions ---\n"); 1450 1451 /* 1452 * Every "register" function calls one or more things that return 1453 * a local reference (e.g. FindClass). Because we haven't really 1454 * started the VM yet, they're all getting stored in the base frame 1455 * and never released. Use Push/Pop to manage the storage. 1456 */ 1457 env->PushLocalFrame(200); 1458 1459 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { 1460 env->PopLocalFrame(NULL); 1461 return -1; 1462 } 1463 env->PopLocalFrame(NULL); 1464 1465 //createJavaThread("fubar", quickTest, (void*) "hello"); 1466 1467 return 0; 1468 } 1469 1470 AndroidRuntime* AndroidRuntime::getRuntime() 1471 { 1472 return gCurRuntime; 1473 } 1474 1475 /** 1476 * Used by WithFramework to register native functions. 1477 */ 1478 extern "C" 1479 jint Java_com_android_internal_util_WithFramework_registerNatives( 1480 JNIEnv* env, jclass clazz) { 1481 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1482 } 1483 1484 /** 1485 * Used by LoadClass to register native functions. 1486 */ 1487 extern "C" 1488 jint Java_LoadClass_registerNatives(JNIEnv* env, jclass clazz) { 1489 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1490 } 1491 1492 } // namespace android 1493
