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 ATRACE_TAG ATRACE_TAG_DALVIK 18 #define LOG_TAG "AndroidRuntime" 19 //#define LOG_NDEBUG 0 20 21 #include <android_runtime/AndroidRuntime.h> 22 #include <binder/IBinder.h> 23 #include <binder/IPCThreadState.h> 24 #include <binder/IServiceManager.h> 25 #include <utils/Log.h> 26 #include <utils/misc.h> 27 #include <utils/Trace.h> 28 #include <binder/Parcel.h> 29 #include <utils/threads.h> 30 #include <cutils/properties.h> 31 32 #include <SkGraphics.h> 33 #include <SkImageDecoder.h> 34 35 #include "jni.h" 36 #include "JNIHelp.h" 37 #include "JniInvocation.h" 38 #include "android_util_Binder.h" 39 40 #include <stdio.h> 41 #include <signal.h> 42 #include <sys/stat.h> 43 #include <sys/types.h> 44 #include <signal.h> 45 #include <dirent.h> 46 #include <assert.h> 47 48 #include <string> 49 #include <vector> 50 51 52 using namespace android; 53 54 extern int register_android_os_Binder(JNIEnv* env); 55 extern int register_android_os_Process(JNIEnv* env); 56 extern int register_android_graphics_Bitmap(JNIEnv*); 57 extern int register_android_graphics_BitmapFactory(JNIEnv*); 58 extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*); 59 extern int register_android_graphics_Camera(JNIEnv* env); 60 extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env); 61 extern int register_android_graphics_Graphics(JNIEnv* env); 62 extern int register_android_graphics_Interpolator(JNIEnv* env); 63 extern int register_android_graphics_MaskFilter(JNIEnv* env); 64 extern int register_android_graphics_Movie(JNIEnv* env); 65 extern int register_android_graphics_NinePatch(JNIEnv*); 66 extern int register_android_graphics_PathEffect(JNIEnv* env); 67 extern int register_android_graphics_Shader(JNIEnv* env); 68 extern int register_android_graphics_Typeface(JNIEnv* env); 69 extern int register_android_graphics_YuvImage(JNIEnv* env); 70 71 extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env); 72 extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env); 73 extern int register_android_opengl_jni_EGL14(JNIEnv* env); 74 extern int register_android_opengl_jni_EGLExt(JNIEnv* env); 75 extern int register_android_opengl_jni_GLES10(JNIEnv* env); 76 extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env); 77 extern int register_android_opengl_jni_GLES11(JNIEnv* env); 78 extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env); 79 extern int register_android_opengl_jni_GLES20(JNIEnv* env); 80 extern int register_android_opengl_jni_GLES30(JNIEnv* env); 81 extern int register_android_opengl_jni_GLES31(JNIEnv* env); 82 extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env); 83 extern int register_android_opengl_jni_GLES32(JNIEnv* env); 84 85 extern int register_android_hardware_Camera(JNIEnv *env); 86 extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env); 87 extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env); 88 extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env); 89 extern int register_android_hardware_camera2_DngCreator(JNIEnv *env); 90 extern int register_android_hardware_Radio(JNIEnv *env); 91 extern int register_android_hardware_SensorManager(JNIEnv *env); 92 extern int register_android_hardware_SerialPort(JNIEnv *env); 93 extern int register_android_hardware_SoundTrigger(JNIEnv *env); 94 extern int register_android_hardware_UsbDevice(JNIEnv *env); 95 extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env); 96 extern int register_android_hardware_UsbRequest(JNIEnv *env); 97 extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env); 98 extern int register_android_hardware_location_ContextHubService(JNIEnv* env); 99 100 extern int register_android_media_AudioRecord(JNIEnv *env); 101 extern int register_android_media_AudioSystem(JNIEnv *env); 102 extern int register_android_media_AudioTrack(JNIEnv *env); 103 extern int register_android_media_JetPlayer(JNIEnv *env); 104 extern int register_android_media_ToneGenerator(JNIEnv *env); 105 106 namespace android { 107 108 /* 109 * JNI-based registration functions. Note these are properly contained in 110 * namespace android. 111 */ 112 extern int register_android_app_admin_SecurityLog(JNIEnv* env); 113 extern int register_android_content_AssetManager(JNIEnv* env); 114 extern int register_android_util_EventLog(JNIEnv* env); 115 extern int register_android_util_Log(JNIEnv* env); 116 extern int register_android_util_MemoryIntArray(JNIEnv* env); 117 extern int register_android_util_PathParser(JNIEnv* env); 118 extern int register_android_content_StringBlock(JNIEnv* env); 119 extern int register_android_content_XmlBlock(JNIEnv* env); 120 extern int register_android_graphics_Canvas(JNIEnv* env); 121 extern int register_android_graphics_CanvasProperty(JNIEnv* env); 122 extern int register_android_graphics_ColorFilter(JNIEnv* env); 123 extern int register_android_graphics_DrawFilter(JNIEnv* env); 124 extern int register_android_graphics_FontFamily(JNIEnv* env); 125 extern int register_android_graphics_LayerRasterizer(JNIEnv*); 126 extern int register_android_graphics_Matrix(JNIEnv* env); 127 extern int register_android_graphics_Paint(JNIEnv* env); 128 extern int register_android_graphics_Path(JNIEnv* env); 129 extern int register_android_graphics_PathMeasure(JNIEnv* env); 130 extern int register_android_graphics_Picture(JNIEnv*); 131 extern int register_android_graphics_PorterDuff(JNIEnv* env); 132 extern int register_android_graphics_Rasterizer(JNIEnv* env); 133 extern int register_android_graphics_Region(JNIEnv* env); 134 extern int register_android_graphics_SurfaceTexture(JNIEnv* env); 135 extern int register_android_graphics_Xfermode(JNIEnv* env); 136 extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env); 137 extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env); 138 extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env); 139 extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env); 140 extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env); 141 extern int register_android_view_DisplayEventReceiver(JNIEnv* env); 142 extern int register_android_view_DisplayListCanvas(JNIEnv* env); 143 extern int register_android_view_GraphicBuffer(JNIEnv* env); 144 extern int register_android_view_HardwareLayer(JNIEnv* env); 145 extern int register_android_view_RenderNode(JNIEnv* env); 146 extern int register_android_view_RenderNodeAnimator(JNIEnv* env); 147 extern int register_android_view_Surface(JNIEnv* env); 148 extern int register_android_view_SurfaceControl(JNIEnv* env); 149 extern int register_android_view_SurfaceSession(JNIEnv* env); 150 extern int register_android_view_TextureView(JNIEnv* env); 151 extern int register_android_view_ThreadedRenderer(JNIEnv* env); 152 extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env); 153 extern int register_android_database_CursorWindow(JNIEnv* env); 154 extern int register_android_database_SQLiteConnection(JNIEnv* env); 155 extern int register_android_database_SQLiteGlobal(JNIEnv* env); 156 extern int register_android_database_SQLiteDebug(JNIEnv* env); 157 extern int register_android_nio_utils(JNIEnv* env); 158 extern int register_android_os_Debug(JNIEnv* env); 159 extern int register_android_os_MessageQueue(JNIEnv* env); 160 extern int register_android_os_Parcel(JNIEnv* env); 161 extern int register_android_os_SELinux(JNIEnv* env); 162 extern int register_android_os_SystemProperties(JNIEnv *env); 163 extern int register_android_os_SystemClock(JNIEnv* env); 164 extern int register_android_os_Trace(JNIEnv* env); 165 extern int register_android_os_FileObserver(JNIEnv *env); 166 extern int register_android_os_UEventObserver(JNIEnv* env); 167 extern int register_android_os_MemoryFile(JNIEnv* env); 168 extern int register_android_net_LocalSocketImpl(JNIEnv* env); 169 extern int register_android_net_NetworkUtils(JNIEnv* env); 170 extern int register_android_net_TrafficStats(JNIEnv* env); 171 extern int register_android_text_AndroidCharacter(JNIEnv *env); 172 extern int register_android_text_StaticLayout(JNIEnv *env); 173 extern int register_android_text_AndroidBidi(JNIEnv *env); 174 extern int register_android_opengl_classes(JNIEnv *env); 175 extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env); 176 extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env); 177 extern int register_android_backup_BackupDataInput(JNIEnv *env); 178 extern int register_android_backup_BackupDataOutput(JNIEnv *env); 179 extern int register_android_backup_FileBackupHelperBase(JNIEnv *env); 180 extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env); 181 extern int register_android_app_backup_FullBackup(JNIEnv *env); 182 extern int register_android_app_Activity(JNIEnv *env); 183 extern int register_android_app_ActivityThread(JNIEnv *env); 184 extern int register_android_app_ApplicationLoaders(JNIEnv *env); 185 extern int register_android_app_NativeActivity(JNIEnv *env); 186 extern int register_android_media_RemoteDisplay(JNIEnv *env); 187 extern int register_android_util_jar_StrictJarFile(JNIEnv* env); 188 extern int register_android_view_InputChannel(JNIEnv* env); 189 extern int register_android_view_InputDevice(JNIEnv* env); 190 extern int register_android_view_InputEventReceiver(JNIEnv* env); 191 extern int register_android_view_InputEventSender(JNIEnv* env); 192 extern int register_android_view_InputQueue(JNIEnv* env); 193 extern int register_android_view_KeyCharacterMap(JNIEnv *env); 194 extern int register_android_view_KeyEvent(JNIEnv* env); 195 extern int register_android_view_MotionEvent(JNIEnv* env); 196 extern int register_android_view_PointerIcon(JNIEnv* env); 197 extern int register_android_view_VelocityTracker(JNIEnv* env); 198 extern int register_android_content_res_ObbScanner(JNIEnv* env); 199 extern int register_android_content_res_Configuration(JNIEnv* env); 200 extern int register_android_animation_PropertyValuesHolder(JNIEnv *env); 201 extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env); 202 extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env); 203 extern int register_com_android_internal_os_PathClassLoaderFactory(JNIEnv* env); 204 extern int register_com_android_internal_os_Zygote(JNIEnv *env); 205 extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env); 206 207 static AndroidRuntime* gCurRuntime = NULL; 208 209 /* 210 * Code written in the Java Programming Language calls here from main(). 211 */ 212 static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz) 213 { 214 gCurRuntime->onStarted(); 215 } 216 217 static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz) 218 { 219 gCurRuntime->onZygoteInit(); 220 } 221 222 static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env, 223 jobject clazz, jboolean exitWithoutCleanup) 224 { 225 gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup); 226 } 227 228 /* 229 * JNI registration. 230 */ 231 static const JNINativeMethod gMethods[] = { 232 { "nativeFinishInit", "()V", 233 (void*) com_android_internal_os_RuntimeInit_nativeFinishInit }, 234 { "nativeZygoteInit", "()V", 235 (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit }, 236 { "nativeSetExitWithoutCleanup", "(Z)V", 237 (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup }, 238 }; 239 240 int register_com_android_internal_os_RuntimeInit(JNIEnv* env) 241 { 242 return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit", 243 gMethods, NELEM(gMethods)); 244 } 245 246 // ---------------------------------------------------------------------- 247 248 /*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL; 249 250 AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) : 251 mExitWithoutCleanup(false), 252 mArgBlockStart(argBlockStart), 253 mArgBlockLength(argBlockLength) 254 { 255 SkGraphics::Init(); 256 // There is also a global font cache, but its budget is specified by 257 // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT. 258 259 // Pre-allocate enough space to hold a fair number of options. 260 mOptions.setCapacity(20); 261 262 assert(gCurRuntime == NULL); // one per process 263 gCurRuntime = this; 264 } 265 266 AndroidRuntime::~AndroidRuntime() 267 { 268 SkGraphics::Term(); 269 } 270 271 /* 272 * Register native methods using JNI. 273 */ 274 /*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env, 275 const char* className, const JNINativeMethod* gMethods, int numMethods) 276 { 277 return jniRegisterNativeMethods(env, className, gMethods, numMethods); 278 } 279 280 void AndroidRuntime::setArgv0(const char* argv0) { 281 memset(mArgBlockStart, 0, mArgBlockLength); 282 strlcpy(mArgBlockStart, argv0, mArgBlockLength); 283 } 284 285 status_t AndroidRuntime::callMain(const String8& className, jclass clazz, 286 const Vector<String8>& args) 287 { 288 JNIEnv* env; 289 jmethodID methodId; 290 291 ALOGD("Calling main entry %s", className.string()); 292 293 env = getJNIEnv(); 294 if (clazz == NULL || env == NULL) { 295 return UNKNOWN_ERROR; 296 } 297 298 methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V"); 299 if (methodId == NULL) { 300 ALOGE("ERROR: could not find method %s.main(String[])\n", className.string()); 301 return UNKNOWN_ERROR; 302 } 303 304 /* 305 * We want to call main() with a String array with our arguments in it. 306 * Create an array and populate it. 307 */ 308 jclass stringClass; 309 jobjectArray strArray; 310 311 const size_t numArgs = args.size(); 312 stringClass = env->FindClass("java/lang/String"); 313 strArray = env->NewObjectArray(numArgs, stringClass, NULL); 314 315 for (size_t i = 0; i < numArgs; i++) { 316 jstring argStr = env->NewStringUTF(args[i].string()); 317 env->SetObjectArrayElement(strArray, i, argStr); 318 } 319 320 env->CallStaticVoidMethod(clazz, methodId, strArray); 321 return NO_ERROR; 322 } 323 324 /* 325 * The VM calls this through the "exit" hook. 326 */ 327 static void runtime_exit(int code) 328 { 329 gCurRuntime->exit(code); 330 } 331 332 /* 333 * The VM calls this through the "vfprintf" hook. 334 * 335 * We ignore "fp" and just write the results to the log file. 336 */ 337 static void runtime_vfprintf(FILE* fp, const char* format, va_list ap) 338 { 339 LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap); 340 } 341 342 /** 343 * The VM calls this when mutex contention debugging is enabled to 344 * determine whether or not the blocked thread was a "sensitive thread" 345 * for user responsiveness/smoothess. 346 * 347 * Our policy for this is whether or not we're tracing any StrictMode 348 * events on this thread (which we might've inherited via Binder calls 349 * into us) 350 */ 351 static bool runtime_isSensitiveThread() { 352 IPCThreadState* state = IPCThreadState::selfOrNull(); 353 return state && state->getStrictModePolicy() != 0; 354 } 355 356 static int hasDir(const char* dir) 357 { 358 struct stat s; 359 int res = stat(dir, &s); 360 if (res == 0) { 361 return S_ISDIR(s.st_mode); 362 } 363 return 0; 364 } 365 366 static bool hasFile(const char* file) { 367 struct stat s; 368 int res = stat(file, &s); 369 if (res == 0) { 370 return S_ISREG(s.st_mode); 371 } 372 return false; 373 } 374 375 // Convenience wrapper over the property API that returns an 376 // std::string. 377 std::string getProperty(const char* key, const char* defaultValue) { 378 std::vector<char> temp(PROPERTY_VALUE_MAX); 379 const int len = property_get(key, &temp[0], defaultValue); 380 if (len < 0) { 381 return ""; 382 } 383 return std::string(&temp[0], len); 384 } 385 386 /* 387 * Read the persistent locale. Inspects the following system properties 388 * (in order) and returns the first non-empty property in the list : 389 * 390 * (1) persist.sys.locale 391 * (2) persist.sys.language/country/localevar (country and localevar are 392 * inspected iff. language is non-empty. 393 * (3) ro.product.locale 394 * (4) ro.product.locale.language/region 395 * 396 * Note that we need to inspect persist.sys.language/country/localevar to 397 * preserve language settings for devices that are upgrading from Lollipop 398 * to M. The same goes for ro.product.locale.language/region as well. 399 */ 400 const std::string readLocale() 401 { 402 const std::string locale = getProperty("persist.sys.locale", ""); 403 if (!locale.empty()) { 404 return locale; 405 } 406 407 const std::string language = getProperty("persist.sys.language", ""); 408 if (!language.empty()) { 409 const std::string country = getProperty("persist.sys.country", ""); 410 const std::string variant = getProperty("persist.sys.localevar", ""); 411 412 std::string out = language; 413 if (!country.empty()) { 414 out = out + "-" + country; 415 } 416 417 if (!variant.empty()) { 418 out = out + "-" + variant; 419 } 420 421 return out; 422 } 423 424 const std::string productLocale = getProperty("ro.product.locale", ""); 425 if (!productLocale.empty()) { 426 return productLocale; 427 } 428 429 // If persist.sys.locale and ro.product.locale are missing, 430 // construct a locale value from the individual locale components. 431 const std::string productLanguage = getProperty("ro.product.locale.language", "en"); 432 const std::string productRegion = getProperty("ro.product.locale.region", "US"); 433 434 return productLanguage + "-" + productRegion; 435 } 436 437 void AndroidRuntime::addOption(const char* optionString, void* extraInfo) 438 { 439 JavaVMOption opt; 440 opt.optionString = optionString; 441 opt.extraInfo = extraInfo; 442 mOptions.add(opt); 443 } 444 445 /* 446 * Parse a property containing space-separated options that should be 447 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap". 448 * 449 * This will cut up "extraOptsBuf" as we chop it into individual options. 450 * 451 * If "quotingArg" is non-null, it is passed before each extra option in mOptions. 452 * 453 * Adds the strings, if any, to mOptions. 454 */ 455 void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg) 456 { 457 char* start = extraOptsBuf; 458 char* end = NULL; 459 while (*start != '\0') { 460 while (*start == ' ') /* skip leading whitespace */ 461 start++; 462 if (*start == '\0') /* was trailing ws, bail */ 463 break; 464 465 end = start+1; 466 while (*end != ' ' && *end != '\0') /* find end of token */ 467 end++; 468 if (*end == ' ') 469 *end++ = '\0'; /* mark end, advance to indicate more */ 470 471 if (quotingArg != NULL) { 472 addOption(quotingArg); 473 } 474 addOption(start); 475 start = end; 476 } 477 } 478 479 /* 480 * Reads a "property" into "buffer" with a default of "defaultArg". If 481 * the property is non-empty, it is treated as a runtime option such 482 * as "-Xmx32m". 483 * 484 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 485 * 486 * If an argument is found, it is added to mOptions. 487 * 488 * If an option is found, it is added to mOptions and true is 489 * returned. Otherwise false is returned. 490 */ 491 bool AndroidRuntime::parseRuntimeOption(const char* property, 492 char* buffer, 493 const char* runtimeArg, 494 const char* defaultArg) 495 { 496 strcpy(buffer, runtimeArg); 497 size_t runtimeArgLen = strlen(runtimeArg); 498 property_get(property, buffer+runtimeArgLen, defaultArg); 499 if (buffer[runtimeArgLen] == '\0') { 500 return false; 501 } 502 addOption(buffer); 503 return true; 504 } 505 506 /* 507 * Reads a "property" into "buffer". If the property is non-empty, it 508 * is treated as a dex2oat compiler option that should be 509 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none". 510 * 511 * The "compilerArg" is a prefix for the option such as "--compiler-filter=". 512 * 513 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 514 * 515 * If an option is found, it is added to mOptions and true is 516 * returned. Otherwise false is returned. 517 */ 518 bool AndroidRuntime::parseCompilerOption(const char* property, 519 char* buffer, 520 const char* compilerArg, 521 const char* quotingArg) 522 { 523 strcpy(buffer, compilerArg); 524 size_t compilerArgLen = strlen(compilerArg); 525 property_get(property, buffer+compilerArgLen, ""); 526 if (buffer[compilerArgLen] == '\0') { 527 return false; 528 } 529 addOption(quotingArg); 530 addOption(buffer); 531 return true; 532 } 533 534 /* 535 * Reads a "property" into "buffer". If the property is non-empty, it 536 * is treated as a dex2oat compiler runtime option that should be 537 * passed as a quoted option, e.g. "-Ximage-compiler-option 538 * --runtime-arg -Ximage-compiler-option -Xmx32m". 539 * 540 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 541 * 542 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 543 * 544 * If an option is found, it is added to mOptions and true is 545 * returned. Otherwise false is returned. 546 */ 547 bool AndroidRuntime::parseCompilerRuntimeOption(const char* property, 548 char* buffer, 549 const char* runtimeArg, 550 const char* quotingArg) 551 { 552 strcpy(buffer, runtimeArg); 553 size_t runtimeArgLen = strlen(runtimeArg); 554 property_get(property, buffer+runtimeArgLen, ""); 555 if (buffer[runtimeArgLen] == '\0') { 556 return false; 557 } 558 addOption(quotingArg); 559 addOption("--runtime-arg"); 560 addOption(quotingArg); 561 addOption(buffer); 562 return true; 563 } 564 565 /* 566 * Start the Dalvik Virtual Machine. 567 * 568 * Various arguments, most determined by system properties, are passed in. 569 * The "mOptions" vector is updated. 570 * 571 * CAUTION: when adding options in here, be careful not to put the 572 * char buffer inside a nested scope. Adding the buffer to the 573 * options using mOptions.add() does not copy the buffer, so if the 574 * buffer goes out of scope the option may be overwritten. It's best 575 * to put the buffer at the top of the function so that it is more 576 * unlikely that someone will surround it in a scope at a later time 577 * and thus introduce a bug. 578 * 579 * Returns 0 on success. 580 */ 581 int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote) 582 { 583 JavaVMInitArgs initArgs; 584 char propBuf[PROPERTY_VALUE_MAX]; 585 char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX]; 586 char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX]; 587 char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 588 char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 589 char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX]; 590 char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX]; 591 char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX]; 592 char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX]; 593 char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX]; 594 char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX]; 595 char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX]; 596 char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX]; 597 char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX]; 598 char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX]; 599 char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX]; 600 char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX]; 601 char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX]; 602 char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX]; 603 char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 604 char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 605 char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 606 char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 607 char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 608 char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 609 char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 610 char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 611 char dex2oat_isa_variant_key[PROPERTY_KEY_MAX]; 612 char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX]; 613 char dex2oat_isa_features_key[PROPERTY_KEY_MAX]; 614 char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX]; 615 char dex2oatFlagsBuf[PROPERTY_VALUE_MAX]; 616 char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX]; 617 char extraOptsBuf[PROPERTY_VALUE_MAX]; 618 char voldDecryptBuf[PROPERTY_VALUE_MAX]; 619 enum { 620 kEMDefault, 621 kEMIntPortable, 622 kEMIntFast, 623 kEMJitCompiler, 624 } executionMode = kEMDefault; 625 char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX]; 626 char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX]; 627 char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX]; 628 char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX]; 629 char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX]; 630 char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX]; 631 char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX]; 632 633 bool checkJni = false; 634 property_get("dalvik.vm.checkjni", propBuf, ""); 635 if (strcmp(propBuf, "true") == 0) { 636 checkJni = true; 637 } else if (strcmp(propBuf, "false") != 0) { 638 /* property is neither true nor false; fall back on kernel parameter */ 639 property_get("ro.kernel.android.checkjni", propBuf, ""); 640 if (propBuf[0] == '1') { 641 checkJni = true; 642 } 643 } 644 ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF"); 645 if (checkJni) { 646 /* extended JNI checking */ 647 addOption("-Xcheck:jni"); 648 649 /* with -Xcheck:jni, this provides a JNI function call trace */ 650 //addOption("-verbose:jni"); 651 } 652 653 property_get("dalvik.vm.execution-mode", propBuf, ""); 654 if (strcmp(propBuf, "int:portable") == 0) { 655 executionMode = kEMIntPortable; 656 } else if (strcmp(propBuf, "int:fast") == 0) { 657 executionMode = kEMIntFast; 658 } else if (strcmp(propBuf, "int:jit") == 0) { 659 executionMode = kEMJitCompiler; 660 } 661 662 parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:"); 663 664 strcpy(jniOptsBuf, "-Xjniopts:"); 665 if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) { 666 ALOGI("JNI options: '%s'\n", jniOptsBuf); 667 } 668 669 /* route exit() to our handler */ 670 addOption("exit", (void*) runtime_exit); 671 672 /* route fprintf() to our handler */ 673 addOption("vfprintf", (void*) runtime_vfprintf); 674 675 /* register the framework-specific "is sensitive thread" hook */ 676 addOption("sensitiveThread", (void*) runtime_isSensitiveThread); 677 678 /* enable verbose; standard options are { jni, gc, class } */ 679 //addOption("-verbose:jni"); 680 addOption("-verbose:gc"); 681 //addOption("-verbose:class"); 682 683 /* 684 * The default starting and maximum size of the heap. Larger 685 * values should be specified in a product property override. 686 */ 687 parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m"); 688 parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m"); 689 690 parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit="); 691 parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree="); 692 parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree="); 693 parseRuntimeOption("dalvik.vm.heaptargetutilization", 694 heaptargetutilizationOptsBuf, 695 "-XX:HeapTargetUtilization="); 696 697 /* 698 * JIT related options. 699 */ 700 parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:"); 701 parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:"); 702 parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:"); 703 parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:"); 704 property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, ""); 705 if (strcmp(useJitProfilesOptsBuf, "true") == 0) { 706 addOption("-Xjitsaveprofilinginfo"); 707 } 708 709 parseRuntimeOption("dalvik.vm.jitprithreadweight", 710 jitprithreadweightOptBuf, 711 "-Xjitprithreadweight:"); 712 713 parseRuntimeOption("dalvik.vm.jittransitionweight", 714 jittransitionweightOptBuf, 715 "-Xjittransitionweight:"); 716 717 property_get("ro.config.low_ram", propBuf, ""); 718 if (strcmp(propBuf, "true") == 0) { 719 addOption("-XX:LowMemoryMode"); 720 } 721 722 parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:"); 723 parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC="); 724 725 /* 726 * Enable debugging only for apps forked from zygote. 727 * Set suspend=y to pause during VM init and use android ADB transport. 728 */ 729 if (zygote) { 730 addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y"); 731 } 732 733 parseRuntimeOption("dalvik.vm.lockprof.threshold", 734 lockProfThresholdBuf, 735 "-Xlockprofthreshold:"); 736 737 if (executionMode == kEMIntPortable) { 738 addOption("-Xint:portable"); 739 } else if (executionMode == kEMIntFast) { 740 addOption("-Xint:fast"); 741 } else if (executionMode == kEMJitCompiler) { 742 addOption("-Xint:jit"); 743 } 744 745 // If we are booting without the real /data, don't spend time compiling. 746 property_get("vold.decrypt", voldDecryptBuf, ""); 747 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || 748 (strcmp(voldDecryptBuf, "1") == 0)); 749 750 // Extra options for boot.art/boot.oat image generation. 751 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, 752 "-Xms", "-Ximage-compiler-option"); 753 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, 754 "-Xmx", "-Ximage-compiler-option"); 755 if (skip_compilation) { 756 addOption("-Ximage-compiler-option"); 757 addOption("--compiler-filter=verify-none"); 758 } else { 759 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, 760 "--compiler-filter=", "-Ximage-compiler-option"); 761 } 762 763 // Make sure there is a preloaded-classes file. 764 if (!hasFile("/system/etc/preloaded-classes")) { 765 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n", 766 strerror(errno)); 767 return -1; 768 } 769 addOption("-Ximage-compiler-option"); 770 addOption("--image-classes=/system/etc/preloaded-classes"); 771 772 // If there is a compiled-classes file, push it. 773 if (hasFile("/system/etc/compiled-classes")) { 774 addOption("-Ximage-compiler-option"); 775 addOption("--compiled-classes=/system/etc/compiled-classes"); 776 } 777 778 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); 779 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); 780 781 // Extra options for DexClassLoader. 782 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, 783 "-Xms", "-Xcompiler-option"); 784 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, 785 "-Xmx", "-Xcompiler-option"); 786 if (skip_compilation) { 787 addOption("-Xcompiler-option"); 788 addOption("--compiler-filter=verify-none"); 789 790 // We skip compilation when a minimal runtime is brought up for decryption. In that case 791 // /data is temporarily backed by a tmpfs, which is usually small. 792 // If the system image contains prebuilts, they will be relocated into the tmpfs. In this 793 // specific situation it is acceptable to *not* relocate and run out of the prebuilts 794 // directly instead. 795 addOption("--runtime-arg"); 796 addOption("-Xnorelocate"); 797 } else { 798 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, 799 "--compiler-filter=", "-Xcompiler-option"); 800 } 801 parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option"); 802 parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j", 803 "-Ximage-compiler-option"); 804 805 // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to 806 // pass the instruction-set-features/variant as an image-compiler-option. 807 // TODO: Find a better way for the instruction-set. 808 #if defined(__arm__) 809 constexpr const char* instruction_set = "arm"; 810 #elif defined(__aarch64__) 811 constexpr const char* instruction_set = "arm64"; 812 #elif defined(__mips__) && !defined(__LP64__) 813 constexpr const char* instruction_set = "mips"; 814 #elif defined(__mips__) && defined(__LP64__) 815 constexpr const char* instruction_set = "mips64"; 816 #elif defined(__i386__) 817 constexpr const char* instruction_set = "x86"; 818 #elif defined(__x86_64__) 819 constexpr const char* instruction_set = "x86_64"; 820 #else 821 constexpr const char* instruction_set = "unknown"; 822 #endif 823 // Note: it is OK to reuse the buffer, as the values are exactly the same between 824 // * compiler-option, used for runtime compilation (DexClassLoader) 825 // * image-compiler-option, used for boot-image compilation on device 826 827 // Copy the variant. 828 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set); 829 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 830 "--instruction-set-variant=", "-Ximage-compiler-option"); 831 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 832 "--instruction-set-variant=", "-Xcompiler-option"); 833 // Copy the features. 834 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set); 835 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 836 "--instruction-set-features=", "-Ximage-compiler-option"); 837 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 838 "--instruction-set-features=", "-Xcompiler-option"); 839 840 841 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); 842 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); 843 844 /* extra options; parse this late so it overrides others */ 845 property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); 846 parseExtraOpts(extraOptsBuf, NULL); 847 848 /* Set the properties for locale */ 849 { 850 strcpy(localeOption, "-Duser.locale="); 851 const std::string locale = readLocale(); 852 strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX); 853 addOption(localeOption); 854 } 855 856 // Trace files are stored in /data/misc/trace which is writable only in debug mode. 857 property_get("ro.debuggable", propBuf, "0"); 858 if (strcmp(propBuf, "1") == 0) { 859 property_get("dalvik.vm.method-trace", propBuf, "false"); 860 if (strcmp(propBuf, "true") == 0) { 861 addOption("-Xmethod-trace"); 862 parseRuntimeOption("dalvik.vm.method-trace-file", 863 methodTraceFileBuf, 864 "-Xmethod-trace-file:"); 865 parseRuntimeOption("dalvik.vm.method-trace-file-siz", 866 methodTraceFileSizeBuf, 867 "-Xmethod-trace-file-size:"); 868 property_get("dalvik.vm.method-trace-stream", propBuf, "false"); 869 if (strcmp(propBuf, "true") == 0) { 870 addOption("-Xmethod-trace-stream"); 871 } 872 } 873 } 874 875 // Native bridge library. "0" means that native bridge is disabled. 876 property_get("ro.dalvik.vm.native.bridge", propBuf, ""); 877 if (propBuf[0] == '\0') { 878 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); 879 } else if (strcmp(propBuf, "0") != 0) { 880 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, 881 "-XX:NativeBridge=%s", propBuf); 882 addOption(nativeBridgeLibrary); 883 } 884 885 #if defined(__LP64__) 886 const char* cpu_abilist_property_name = "ro.product.cpu.abilist64"; 887 #else 888 const char* cpu_abilist_property_name = "ro.product.cpu.abilist32"; 889 #endif // defined(__LP64__) 890 property_get(cpu_abilist_property_name, propBuf, ""); 891 if (propBuf[0] == '\0') { 892 ALOGE("%s is not expected to be empty", cpu_abilist_property_name); 893 return -1; 894 } 895 snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf); 896 addOption(cpuAbiListBuf); 897 898 // Dalvik-cache pruning counter. 899 parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf, 900 "-Xzygote-max-boot-retry="); 901 902 /* 903 * When running with debug.generate-debug-info, add --generate-debug-info to 904 * the compiler options so that the boot image, if it is compiled on device, 905 * will include native debugging information. 906 */ 907 property_get("debug.generate-debug-info", propBuf, ""); 908 if (strcmp(propBuf, "true") == 0) { 909 addOption("-Xcompiler-option"); 910 addOption("--generate-debug-info"); 911 addOption("-Ximage-compiler-option"); 912 addOption("--generate-debug-info"); 913 } 914 915 /* 916 * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will 917 * contain the fingerprint and can be parsed. 918 */ 919 parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:"); 920 921 initArgs.version = JNI_VERSION_1_4; 922 initArgs.options = mOptions.editArray(); 923 initArgs.nOptions = mOptions.size(); 924 initArgs.ignoreUnrecognized = JNI_FALSE; 925 926 /* 927 * Initialize the VM. 928 * 929 * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. 930 * If this call succeeds, the VM is ready, and we can start issuing 931 * JNI calls. 932 */ 933 if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { 934 ALOGE("JNI_CreateJavaVM failed\n"); 935 return -1; 936 } 937 938 return 0; 939 } 940 941 char* AndroidRuntime::toSlashClassName(const char* className) 942 { 943 char* result = strdup(className); 944 for (char* cp = result; *cp != '\0'; cp++) { 945 if (*cp == '.') { 946 *cp = '/'; 947 } 948 } 949 return result; 950 } 951 952 /** Create a Java string from an ASCII or Latin-1 string */ 953 jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { 954 if (!bytes) return NULL; 955 int length = strlen(bytes); 956 jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); 957 if (!buffer) return NULL; 958 jchar* chp = buffer; 959 for (int i = 0; i < length; i++) { 960 *chp++ = *bytes++; 961 } 962 return env->NewString(buffer, length); 963 } 964 965 966 /* 967 * Start the Android runtime. This involves starting the virtual machine 968 * and calling the "static void main(String[] args)" method in the class 969 * named by "className". 970 * 971 * Passes the main function two arguments, the class name and the specified 972 * options string. 973 */ 974 void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote) 975 { 976 ALOGD(">>>>>> START %s uid %d <<<<<<\n", 977 className != NULL ? className : "(unknown)", getuid()); 978 979 static const String8 startSystemServer("start-system-server"); 980 981 /* 982 * 'startSystemServer == true' means runtime is obsolete and not run from 983 * init.rc anymore, so we print out the boot start event here. 984 */ 985 for (size_t i = 0; i < options.size(); ++i) { 986 if (options[i] == startSystemServer) { 987 /* track our progress through the boot sequence */ 988 const int LOG_BOOT_PROGRESS_START = 3000; 989 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); 990 } 991 } 992 993 const char* rootDir = getenv("ANDROID_ROOT"); 994 if (rootDir == NULL) { 995 rootDir = "/system"; 996 if (!hasDir("/system")) { 997 LOG_FATAL("No root directory specified, and /android does not exist."); 998 return; 999 } 1000 setenv("ANDROID_ROOT", rootDir, 1); 1001 } 1002 1003 //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); 1004 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); 1005 1006 /* start the virtual machine */ 1007 JniInvocation jni_invocation; 1008 jni_invocation.Init(NULL); 1009 JNIEnv* env; 1010 if (startVm(&mJavaVM, &env, zygote) != 0) { 1011 return; 1012 } 1013 onVmCreated(env); 1014 1015 /* 1016 * Register android functions. 1017 */ 1018 if (startReg(env) < 0) { 1019 ALOGE("Unable to register all android natives\n"); 1020 return; 1021 } 1022 1023 /* 1024 * We want to call main() with a String array with arguments in it. 1025 * At present we have two arguments, the class name and an option string. 1026 * Create an array to hold them. 1027 */ 1028 jclass stringClass; 1029 jobjectArray strArray; 1030 jstring classNameStr; 1031 1032 stringClass = env->FindClass("java/lang/String"); 1033 assert(stringClass != NULL); 1034 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); 1035 assert(strArray != NULL); 1036 classNameStr = env->NewStringUTF(className); 1037 assert(classNameStr != NULL); 1038 env->SetObjectArrayElement(strArray, 0, classNameStr); 1039 1040 for (size_t i = 0; i < options.size(); ++i) { 1041 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); 1042 assert(optionsStr != NULL); 1043 env->SetObjectArrayElement(strArray, i + 1, optionsStr); 1044 } 1045 1046 /* 1047 * Start VM. This thread becomes the main thread of the VM, and will 1048 * not return until the VM exits. 1049 */ 1050 char* slashClassName = toSlashClassName(className); 1051 jclass startClass = env->FindClass(slashClassName); 1052 if (startClass == NULL) { 1053 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); 1054 /* keep going */ 1055 } else { 1056 jmethodID startMeth = env->GetStaticMethodID(startClass, "main", 1057 "([Ljava/lang/String;)V"); 1058 if (startMeth == NULL) { 1059 ALOGE("JavaVM unable to find main() in '%s'\n", className); 1060 /* keep going */ 1061 } else { 1062 env->CallStaticVoidMethod(startClass, startMeth, strArray); 1063 1064 #if 0 1065 if (env->ExceptionCheck()) 1066 threadExitUncaughtException(env); 1067 #endif 1068 } 1069 } 1070 free(slashClassName); 1071 1072 ALOGD("Shutting down VM\n"); 1073 if (mJavaVM->DetachCurrentThread() != JNI_OK) 1074 ALOGW("Warning: unable to detach main thread\n"); 1075 if (mJavaVM->DestroyJavaVM() != 0) 1076 ALOGW("Warning: VM did not shut down cleanly\n"); 1077 } 1078 1079 void AndroidRuntime::exit(int code) 1080 { 1081 if (mExitWithoutCleanup) { 1082 ALOGI("VM exiting with result code %d, cleanup skipped.", code); 1083 ::_exit(code); 1084 } else { 1085 ALOGI("VM exiting with result code %d.", code); 1086 onExit(code); 1087 ::exit(code); 1088 } 1089 } 1090 1091 void AndroidRuntime::onVmCreated(JNIEnv* env) 1092 { 1093 // If AndroidRuntime had anything to do here, we'd have done it in 'start'. 1094 } 1095 1096 /* 1097 * Get the JNIEnv pointer for this thread. 1098 * 1099 * Returns NULL if the slot wasn't allocated or populated. 1100 */ 1101 /*static*/ JNIEnv* AndroidRuntime::getJNIEnv() 1102 { 1103 JNIEnv* env; 1104 JavaVM* vm = AndroidRuntime::getJavaVM(); 1105 assert(vm != NULL); 1106 1107 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) 1108 return NULL; 1109 return env; 1110 } 1111 1112 /* 1113 * Makes the current thread visible to the VM. 1114 * 1115 * The JNIEnv pointer returned is only valid for the current thread, and 1116 * thus must be tucked into thread-local storage. 1117 */ 1118 static int javaAttachThread(const char* threadName, JNIEnv** pEnv) 1119 { 1120 JavaVMAttachArgs args; 1121 JavaVM* vm; 1122 jint result; 1123 1124 vm = AndroidRuntime::getJavaVM(); 1125 assert(vm != NULL); 1126 1127 args.version = JNI_VERSION_1_4; 1128 args.name = (char*) threadName; 1129 args.group = NULL; 1130 1131 result = vm->AttachCurrentThread(pEnv, (void*) &args); 1132 if (result != JNI_OK) 1133 ALOGI("NOTE: attach of thread '%s' failed\n", threadName); 1134 1135 return result; 1136 } 1137 1138 /* 1139 * Detach the current thread from the set visible to the VM. 1140 */ 1141 static int javaDetachThread(void) 1142 { 1143 JavaVM* vm; 1144 jint result; 1145 1146 vm = AndroidRuntime::getJavaVM(); 1147 assert(vm != NULL); 1148 1149 result = vm->DetachCurrentThread(); 1150 if (result != JNI_OK) 1151 ALOGE("ERROR: thread detach failed\n"); 1152 return result; 1153 } 1154 1155 /* 1156 * When starting a native thread that will be visible from the VM, we 1157 * bounce through this to get the right attach/detach action. 1158 * Note that this function calls free(args) 1159 */ 1160 /*static*/ int AndroidRuntime::javaThreadShell(void* args) { 1161 void* start = ((void**)args)[0]; 1162 void* userData = ((void **)args)[1]; 1163 char* name = (char*) ((void **)args)[2]; // we own this storage 1164 free(args); 1165 JNIEnv* env; 1166 int result; 1167 1168 /* hook us into the VM */ 1169 if (javaAttachThread(name, &env) != JNI_OK) 1170 return -1; 1171 1172 /* start the thread running */ 1173 result = (*(android_thread_func_t)start)(userData); 1174 1175 /* unhook us */ 1176 javaDetachThread(); 1177 free(name); 1178 1179 return result; 1180 } 1181 1182 /* 1183 * This is invoked from androidCreateThreadEtc() via the callback 1184 * set with androidSetCreateThreadFunc(). 1185 * 1186 * We need to create the new thread in such a way that it gets hooked 1187 * into the VM before it really starts executing. 1188 */ 1189 /*static*/ int AndroidRuntime::javaCreateThreadEtc( 1190 android_thread_func_t entryFunction, 1191 void* userData, 1192 const char* threadName, 1193 int32_t threadPriority, 1194 size_t threadStackSize, 1195 android_thread_id_t* threadId) 1196 { 1197 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free 1198 int result; 1199 1200 LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc"); 1201 1202 args[0] = (void*) entryFunction; 1203 args[1] = userData; 1204 args[2] = (void*) strdup(threadName); // javaThreadShell must free 1205 1206 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, 1207 threadName, threadPriority, threadStackSize, threadId); 1208 return result; 1209 } 1210 1211 /* 1212 * Create a thread that is visible from the VM. 1213 * 1214 * This is called from elsewhere in the library. 1215 */ 1216 /*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, 1217 void (*start)(void *), void* arg) 1218 { 1219 android_thread_id_t threadId = 0; 1220 javaCreateThreadEtc((android_thread_func_t) start, arg, name, 1221 ANDROID_PRIORITY_DEFAULT, 0, &threadId); 1222 return threadId; 1223 } 1224 1225 #if 0 1226 static void quickTest(void* arg) 1227 { 1228 const char* str = (const char*) arg; 1229 1230 printf("In quickTest: %s\n", str); 1231 } 1232 #endif 1233 1234 #ifdef NDEBUG 1235 #define REG_JNI(name) { name } 1236 struct RegJNIRec { 1237 int (*mProc)(JNIEnv*); 1238 }; 1239 #else 1240 #define REG_JNI(name) { name, #name } 1241 struct RegJNIRec { 1242 int (*mProc)(JNIEnv*); 1243 const char* mName; 1244 }; 1245 #endif 1246 1247 typedef void (*RegJAMProc)(); 1248 1249 static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) 1250 { 1251 for (size_t i = 0; i < count; i++) { 1252 if (array[i].mProc(env) < 0) { 1253 #ifndef NDEBUG 1254 ALOGD("----------!!! %s failed to load\n", array[i].mName); 1255 #endif 1256 return -1; 1257 } 1258 } 1259 return 0; 1260 } 1261 1262 static const RegJNIRec gRegJNI[] = { 1263 REG_JNI(register_com_android_internal_os_RuntimeInit), 1264 REG_JNI(register_android_os_SystemClock), 1265 REG_JNI(register_android_util_EventLog), 1266 REG_JNI(register_android_util_Log), 1267 REG_JNI(register_android_util_MemoryIntArray), 1268 REG_JNI(register_android_util_PathParser), 1269 REG_JNI(register_android_app_admin_SecurityLog), 1270 REG_JNI(register_android_content_AssetManager), 1271 REG_JNI(register_android_content_StringBlock), 1272 REG_JNI(register_android_content_XmlBlock), 1273 REG_JNI(register_android_text_AndroidCharacter), 1274 REG_JNI(register_android_text_StaticLayout), 1275 REG_JNI(register_android_text_AndroidBidi), 1276 REG_JNI(register_android_view_InputDevice), 1277 REG_JNI(register_android_view_KeyCharacterMap), 1278 REG_JNI(register_android_os_Process), 1279 REG_JNI(register_android_os_SystemProperties), 1280 REG_JNI(register_android_os_Binder), 1281 REG_JNI(register_android_os_Parcel), 1282 REG_JNI(register_android_nio_utils), 1283 REG_JNI(register_android_graphics_Canvas), 1284 REG_JNI(register_android_graphics_Graphics), 1285 REG_JNI(register_android_view_DisplayEventReceiver), 1286 REG_JNI(register_android_view_RenderNode), 1287 REG_JNI(register_android_view_RenderNodeAnimator), 1288 REG_JNI(register_android_view_GraphicBuffer), 1289 REG_JNI(register_android_view_DisplayListCanvas), 1290 REG_JNI(register_android_view_HardwareLayer), 1291 REG_JNI(register_android_view_ThreadedRenderer), 1292 REG_JNI(register_android_view_Surface), 1293 REG_JNI(register_android_view_SurfaceControl), 1294 REG_JNI(register_android_view_SurfaceSession), 1295 REG_JNI(register_android_view_TextureView), 1296 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), 1297 REG_JNI(register_com_google_android_gles_jni_EGLImpl), 1298 REG_JNI(register_com_google_android_gles_jni_GLImpl), 1299 REG_JNI(register_android_opengl_jni_EGL14), 1300 REG_JNI(register_android_opengl_jni_EGLExt), 1301 REG_JNI(register_android_opengl_jni_GLES10), 1302 REG_JNI(register_android_opengl_jni_GLES10Ext), 1303 REG_JNI(register_android_opengl_jni_GLES11), 1304 REG_JNI(register_android_opengl_jni_GLES11Ext), 1305 REG_JNI(register_android_opengl_jni_GLES20), 1306 REG_JNI(register_android_opengl_jni_GLES30), 1307 REG_JNI(register_android_opengl_jni_GLES31), 1308 REG_JNI(register_android_opengl_jni_GLES31Ext), 1309 REG_JNI(register_android_opengl_jni_GLES32), 1310 1311 REG_JNI(register_android_graphics_Bitmap), 1312 REG_JNI(register_android_graphics_BitmapFactory), 1313 REG_JNI(register_android_graphics_BitmapRegionDecoder), 1314 REG_JNI(register_android_graphics_Camera), 1315 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), 1316 REG_JNI(register_android_graphics_CanvasProperty), 1317 REG_JNI(register_android_graphics_ColorFilter), 1318 REG_JNI(register_android_graphics_DrawFilter), 1319 REG_JNI(register_android_graphics_FontFamily), 1320 REG_JNI(register_android_graphics_Interpolator), 1321 REG_JNI(register_android_graphics_LayerRasterizer), 1322 REG_JNI(register_android_graphics_MaskFilter), 1323 REG_JNI(register_android_graphics_Matrix), 1324 REG_JNI(register_android_graphics_Movie), 1325 REG_JNI(register_android_graphics_NinePatch), 1326 REG_JNI(register_android_graphics_Paint), 1327 REG_JNI(register_android_graphics_Path), 1328 REG_JNI(register_android_graphics_PathMeasure), 1329 REG_JNI(register_android_graphics_PathEffect), 1330 REG_JNI(register_android_graphics_Picture), 1331 REG_JNI(register_android_graphics_PorterDuff), 1332 REG_JNI(register_android_graphics_Rasterizer), 1333 REG_JNI(register_android_graphics_Region), 1334 REG_JNI(register_android_graphics_Shader), 1335 REG_JNI(register_android_graphics_SurfaceTexture), 1336 REG_JNI(register_android_graphics_Typeface), 1337 REG_JNI(register_android_graphics_Xfermode), 1338 REG_JNI(register_android_graphics_YuvImage), 1339 REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable), 1340 REG_JNI(register_android_graphics_drawable_VectorDrawable), 1341 REG_JNI(register_android_graphics_pdf_PdfDocument), 1342 REG_JNI(register_android_graphics_pdf_PdfEditor), 1343 REG_JNI(register_android_graphics_pdf_PdfRenderer), 1344 1345 REG_JNI(register_android_database_CursorWindow), 1346 REG_JNI(register_android_database_SQLiteConnection), 1347 REG_JNI(register_android_database_SQLiteGlobal), 1348 REG_JNI(register_android_database_SQLiteDebug), 1349 REG_JNI(register_android_os_Debug), 1350 REG_JNI(register_android_os_FileObserver), 1351 REG_JNI(register_android_os_MessageQueue), 1352 REG_JNI(register_android_os_SELinux), 1353 REG_JNI(register_android_os_Trace), 1354 REG_JNI(register_android_os_UEventObserver), 1355 REG_JNI(register_android_net_LocalSocketImpl), 1356 REG_JNI(register_android_net_NetworkUtils), 1357 REG_JNI(register_android_net_TrafficStats), 1358 REG_JNI(register_android_os_MemoryFile), 1359 REG_JNI(register_com_android_internal_os_PathClassLoaderFactory), 1360 REG_JNI(register_com_android_internal_os_Zygote), 1361 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), 1362 REG_JNI(register_android_hardware_Camera), 1363 REG_JNI(register_android_hardware_camera2_CameraMetadata), 1364 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), 1365 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), 1366 REG_JNI(register_android_hardware_camera2_DngCreator), 1367 REG_JNI(register_android_hardware_Radio), 1368 REG_JNI(register_android_hardware_SensorManager), 1369 REG_JNI(register_android_hardware_SerialPort), 1370 REG_JNI(register_android_hardware_SoundTrigger), 1371 REG_JNI(register_android_hardware_UsbDevice), 1372 REG_JNI(register_android_hardware_UsbDeviceConnection), 1373 REG_JNI(register_android_hardware_UsbRequest), 1374 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), 1375 REG_JNI(register_android_hardware_location_ContextHubService), 1376 REG_JNI(register_android_media_AudioRecord), 1377 REG_JNI(register_android_media_AudioSystem), 1378 REG_JNI(register_android_media_AudioTrack), 1379 REG_JNI(register_android_media_JetPlayer), 1380 REG_JNI(register_android_media_RemoteDisplay), 1381 REG_JNI(register_android_media_ToneGenerator), 1382 1383 REG_JNI(register_android_opengl_classes), 1384 REG_JNI(register_android_server_NetworkManagementSocketTagger), 1385 REG_JNI(register_android_ddm_DdmHandleNativeHeap), 1386 REG_JNI(register_android_backup_BackupDataInput), 1387 REG_JNI(register_android_backup_BackupDataOutput), 1388 REG_JNI(register_android_backup_FileBackupHelperBase), 1389 REG_JNI(register_android_backup_BackupHelperDispatcher), 1390 REG_JNI(register_android_app_backup_FullBackup), 1391 REG_JNI(register_android_app_Activity), 1392 REG_JNI(register_android_app_ActivityThread), 1393 REG_JNI(register_android_app_ApplicationLoaders), 1394 REG_JNI(register_android_app_NativeActivity), 1395 REG_JNI(register_android_util_jar_StrictJarFile), 1396 REG_JNI(register_android_view_InputChannel), 1397 REG_JNI(register_android_view_InputEventReceiver), 1398 REG_JNI(register_android_view_InputEventSender), 1399 REG_JNI(register_android_view_InputQueue), 1400 REG_JNI(register_android_view_KeyEvent), 1401 REG_JNI(register_android_view_MotionEvent), 1402 REG_JNI(register_android_view_PointerIcon), 1403 REG_JNI(register_android_view_VelocityTracker), 1404 1405 REG_JNI(register_android_content_res_ObbScanner), 1406 REG_JNI(register_android_content_res_Configuration), 1407 1408 REG_JNI(register_android_animation_PropertyValuesHolder), 1409 REG_JNI(register_com_android_internal_content_NativeLibraryHelper), 1410 REG_JNI(register_com_android_internal_net_NetworkStatsFactory), 1411 1412 }; 1413 1414 /* 1415 * Register android native functions with the VM. 1416 */ 1417 /*static*/ int AndroidRuntime::startReg(JNIEnv* env) 1418 { 1419 ATRACE_NAME("RegisterAndroidNatives"); 1420 /* 1421 * This hook causes all future threads created in this process to be 1422 * attached to the JavaVM. (This needs to go away in favor of JNI 1423 * Attach calls.) 1424 */ 1425 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); 1426 1427 ALOGV("--- registering native functions ---\n"); 1428 1429 /* 1430 * Every "register" function calls one or more things that return 1431 * a local reference (e.g. FindClass). Because we haven't really 1432 * started the VM yet, they're all getting stored in the base frame 1433 * and never released. Use Push/Pop to manage the storage. 1434 */ 1435 env->PushLocalFrame(200); 1436 1437 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { 1438 env->PopLocalFrame(NULL); 1439 return -1; 1440 } 1441 env->PopLocalFrame(NULL); 1442 1443 //createJavaThread("fubar", quickTest, (void*) "hello"); 1444 1445 return 0; 1446 } 1447 1448 AndroidRuntime* AndroidRuntime::getRuntime() 1449 { 1450 return gCurRuntime; 1451 } 1452 1453 /** 1454 * Used by surface flinger's DdmConnection to register native methods from 1455 * the framework. 1456 */ 1457 extern "C" jint registerFrameworkNatives(JNIEnv* env) { 1458 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1459 } 1460 } // namespace android 1461
