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 1 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 34 #include "jni.h" 35 #include "JNIHelp.h" 36 #include "JniInvocation.h" 37 #include "android_util_Binder.h" 38 39 #include <stdio.h> 40 #include <signal.h> 41 #include <sys/stat.h> 42 #include <sys/types.h> 43 #include <signal.h> 44 #include <dirent.h> 45 #include <assert.h> 46 47 #include <string> 48 #include <vector> 49 50 51 using namespace android; 52 53 extern int register_android_os_Binder(JNIEnv* env); 54 extern int register_android_os_Process(JNIEnv* env); 55 extern int register_android_graphics_Bitmap(JNIEnv*); 56 extern int register_android_graphics_BitmapFactory(JNIEnv*); 57 extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*); 58 extern int register_android_graphics_Camera(JNIEnv* env); 59 extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env); 60 extern int register_android_graphics_GraphicBuffer(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_HardwareBuffer(JNIEnv *env); 91 extern int register_android_hardware_Radio(JNIEnv *env); 92 extern int register_android_hardware_SensorManager(JNIEnv *env); 93 extern int register_android_hardware_SerialPort(JNIEnv *env); 94 extern int register_android_hardware_SoundTrigger(JNIEnv *env); 95 extern int register_android_hardware_UsbDevice(JNIEnv *env); 96 extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env); 97 extern int register_android_hardware_UsbRequest(JNIEnv *env); 98 extern int register_android_hardware_location_ActivityRecognitionHardware(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_Matrix(JNIEnv* env); 126 extern int register_android_graphics_Paint(JNIEnv* env); 127 extern int register_android_graphics_Path(JNIEnv* env); 128 extern int register_android_graphics_PathMeasure(JNIEnv* env); 129 extern int register_android_graphics_Picture(JNIEnv*); 130 extern int register_android_graphics_Region(JNIEnv* env); 131 extern int register_android_graphics_SurfaceTexture(JNIEnv* env); 132 extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env); 133 extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env); 134 extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env); 135 extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env); 136 extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env); 137 extern int register_android_view_DisplayEventReceiver(JNIEnv* env); 138 extern int register_android_view_DisplayListCanvas(JNIEnv* env); 139 extern int register_android_view_HardwareLayer(JNIEnv* env); 140 extern int register_android_view_RenderNode(JNIEnv* env); 141 extern int register_android_view_RenderNodeAnimator(JNIEnv* env); 142 extern int register_android_view_Surface(JNIEnv* env); 143 extern int register_android_view_SurfaceControl(JNIEnv* env); 144 extern int register_android_view_SurfaceSession(JNIEnv* env); 145 extern int register_android_view_TextureView(JNIEnv* env); 146 extern int register_android_view_ThreadedRenderer(JNIEnv* env); 147 extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env); 148 extern int register_android_database_CursorWindow(JNIEnv* env); 149 extern int register_android_database_SQLiteConnection(JNIEnv* env); 150 extern int register_android_database_SQLiteGlobal(JNIEnv* env); 151 extern int register_android_database_SQLiteDebug(JNIEnv* env); 152 extern int register_android_nio_utils(JNIEnv* env); 153 extern int register_android_os_Debug(JNIEnv* env); 154 extern int register_android_os_GraphicsEnvironment(JNIEnv* env); 155 extern int register_android_os_HwBinder(JNIEnv *env); 156 extern int register_android_os_HwBlob(JNIEnv *env); 157 extern int register_android_os_HwParcel(JNIEnv *env); 158 extern int register_android_os_HwRemoteBinder(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_VintfObject(JNIEnv *env); 163 extern int register_android_os_VintfRuntimeInfo(JNIEnv *env); 164 extern int register_android_os_seccomp(JNIEnv* env); 165 extern int register_android_os_SystemProperties(JNIEnv *env); 166 extern int register_android_os_SystemClock(JNIEnv* env); 167 extern int register_android_os_Trace(JNIEnv* env); 168 extern int register_android_os_FileObserver(JNIEnv *env); 169 extern int register_android_os_UEventObserver(JNIEnv* env); 170 extern int register_android_os_MemoryFile(JNIEnv* env); 171 extern int register_android_net_LocalSocketImpl(JNIEnv* env); 172 extern int register_android_net_NetworkUtils(JNIEnv* env); 173 extern int register_android_net_TrafficStats(JNIEnv* env); 174 extern int register_android_text_AndroidCharacter(JNIEnv *env); 175 extern int register_android_text_StaticLayout(JNIEnv *env); 176 extern int register_android_text_AndroidBidi(JNIEnv *env); 177 extern int register_android_opengl_classes(JNIEnv *env); 178 extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env); 179 extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env); 180 extern int register_android_backup_BackupDataInput(JNIEnv *env); 181 extern int register_android_backup_BackupDataOutput(JNIEnv *env); 182 extern int register_android_backup_FileBackupHelperBase(JNIEnv *env); 183 extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env); 184 extern int register_android_app_backup_FullBackup(JNIEnv *env); 185 extern int register_android_app_Activity(JNIEnv *env); 186 extern int register_android_app_ActivityThread(JNIEnv *env); 187 extern int register_android_app_ApplicationLoaders(JNIEnv *env); 188 extern int register_android_app_NativeActivity(JNIEnv *env); 189 extern int register_android_media_RemoteDisplay(JNIEnv *env); 190 extern int register_android_util_jar_StrictJarFile(JNIEnv* env); 191 extern int register_android_view_InputChannel(JNIEnv* env); 192 extern int register_android_view_InputDevice(JNIEnv* env); 193 extern int register_android_view_InputEventReceiver(JNIEnv* env); 194 extern int register_android_view_InputEventSender(JNIEnv* env); 195 extern int register_android_view_InputQueue(JNIEnv* env); 196 extern int register_android_view_KeyCharacterMap(JNIEnv *env); 197 extern int register_android_view_KeyEvent(JNIEnv* env); 198 extern int register_android_view_MotionEvent(JNIEnv* env); 199 extern int register_android_view_PointerIcon(JNIEnv* env); 200 extern int register_android_view_VelocityTracker(JNIEnv* env); 201 extern int register_android_content_res_ObbScanner(JNIEnv* env); 202 extern int register_android_content_res_Configuration(JNIEnv* env); 203 extern int register_android_animation_PropertyValuesHolder(JNIEnv *env); 204 extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env); 205 extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env); 206 extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env); 207 extern int register_com_android_internal_os_PathClassLoaderFactory(JNIEnv* env); 208 extern int register_com_android_internal_os_Zygote(JNIEnv *env); 209 extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env); 210 211 static AndroidRuntime* gCurRuntime = NULL; 212 213 /* 214 * Code written in the Java Programming Language calls here from main(). 215 */ 216 static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz) 217 { 218 gCurRuntime->onStarted(); 219 } 220 221 static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz) 222 { 223 gCurRuntime->onZygoteInit(); 224 } 225 226 static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env, 227 jobject clazz, jboolean exitWithoutCleanup) 228 { 229 gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup); 230 } 231 232 /* 233 * JNI registration. 234 */ 235 236 int register_com_android_internal_os_RuntimeInit(JNIEnv* env) 237 { 238 const JNINativeMethod methods[] = { 239 { "nativeFinishInit", "()V", 240 (void*) com_android_internal_os_RuntimeInit_nativeFinishInit }, 241 { "nativeSetExitWithoutCleanup", "(Z)V", 242 (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup }, 243 }; 244 return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit", 245 methods, NELEM(methods)); 246 } 247 248 int register_com_android_internal_os_ZygoteInit(JNIEnv* env) 249 { 250 const JNINativeMethod methods[] = { 251 { "nativeZygoteInit", "()V", 252 (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit }, 253 }; 254 return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit", 255 methods, NELEM(methods)); 256 } 257 258 // ---------------------------------------------------------------------- 259 260 /*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL; 261 262 AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) : 263 mExitWithoutCleanup(false), 264 mArgBlockStart(argBlockStart), 265 mArgBlockLength(argBlockLength) 266 { 267 SkGraphics::Init(); 268 // There is also a global font cache, but its budget is specified by 269 // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT. 270 271 // Pre-allocate enough space to hold a fair number of options. 272 mOptions.setCapacity(20); 273 274 assert(gCurRuntime == NULL); // one per process 275 gCurRuntime = this; 276 } 277 278 AndroidRuntime::~AndroidRuntime() 279 { 280 SkGraphics::Term(); 281 } 282 283 /* 284 * Register native methods using JNI. 285 */ 286 /*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env, 287 const char* className, const JNINativeMethod* gMethods, int numMethods) 288 { 289 return jniRegisterNativeMethods(env, className, gMethods, numMethods); 290 } 291 292 void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) { 293 if (setProcName) { 294 int len = strlen(argv0); 295 if (len < 15) { 296 pthread_setname_np(pthread_self(), argv0); 297 } else { 298 pthread_setname_np(pthread_self(), argv0 + len - 15); 299 } 300 } 301 memset(mArgBlockStart, 0, mArgBlockLength); 302 strlcpy(mArgBlockStart, argv0, mArgBlockLength); 303 } 304 305 status_t AndroidRuntime::callMain(const String8& className, jclass clazz, 306 const Vector<String8>& args) 307 { 308 JNIEnv* env; 309 jmethodID methodId; 310 311 ALOGD("Calling main entry %s", className.string()); 312 313 env = getJNIEnv(); 314 if (clazz == NULL || env == NULL) { 315 return UNKNOWN_ERROR; 316 } 317 318 methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V"); 319 if (methodId == NULL) { 320 ALOGE("ERROR: could not find method %s.main(String[])\n", className.string()); 321 return UNKNOWN_ERROR; 322 } 323 324 /* 325 * We want to call main() with a String array with our arguments in it. 326 * Create an array and populate it. 327 */ 328 jclass stringClass; 329 jobjectArray strArray; 330 331 const size_t numArgs = args.size(); 332 stringClass = env->FindClass("java/lang/String"); 333 strArray = env->NewObjectArray(numArgs, stringClass, NULL); 334 335 for (size_t i = 0; i < numArgs; i++) { 336 jstring argStr = env->NewStringUTF(args[i].string()); 337 env->SetObjectArrayElement(strArray, i, argStr); 338 } 339 340 env->CallStaticVoidMethod(clazz, methodId, strArray); 341 return NO_ERROR; 342 } 343 344 /* 345 * The VM calls this through the "exit" hook. 346 */ 347 static void runtime_exit(int code) 348 { 349 gCurRuntime->exit(code); 350 } 351 352 /* 353 * The VM calls this through the "vfprintf" hook. 354 * 355 * We ignore "fp" and just write the results to the log file. 356 */ 357 static void runtime_vfprintf(FILE* fp, const char* format, va_list ap) 358 { 359 LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap); 360 } 361 362 /** 363 * The VM calls this when mutex contention debugging is enabled to 364 * determine whether or not the blocked thread was a "sensitive thread" 365 * for user responsiveness/smoothess. 366 * 367 * Our policy for this is whether or not we're tracing any StrictMode 368 * events on this thread (which we might've inherited via Binder calls 369 * into us) 370 */ 371 static bool runtime_isSensitiveThread() { 372 IPCThreadState* state = IPCThreadState::selfOrNull(); 373 return state && state->getStrictModePolicy() != 0; 374 } 375 376 static int hasDir(const char* dir) 377 { 378 struct stat s; 379 int res = stat(dir, &s); 380 if (res == 0) { 381 return S_ISDIR(s.st_mode); 382 } 383 return 0; 384 } 385 386 static bool hasFile(const char* file) { 387 struct stat s; 388 int res = stat(file, &s); 389 if (res == 0) { 390 return S_ISREG(s.st_mode); 391 } 392 return false; 393 } 394 395 // Convenience wrapper over the property API that returns an 396 // std::string. 397 std::string getProperty(const char* key, const char* defaultValue) { 398 std::vector<char> temp(PROPERTY_VALUE_MAX); 399 const int len = property_get(key, &temp[0], defaultValue); 400 if (len < 0) { 401 return ""; 402 } 403 return std::string(&temp[0], len); 404 } 405 406 /* 407 * Read the persistent locale. Inspects the following system properties 408 * (in order) and returns the first non-empty property in the list : 409 * 410 * (1) persist.sys.locale 411 * (2) persist.sys.language/country/localevar (country and localevar are 412 * inspected iff. language is non-empty. 413 * (3) ro.product.locale 414 * (4) ro.product.locale.language/region 415 * 416 * Note that we need to inspect persist.sys.language/country/localevar to 417 * preserve language settings for devices that are upgrading from Lollipop 418 * to M. The same goes for ro.product.locale.language/region as well. 419 */ 420 const std::string readLocale() 421 { 422 const std::string locale = getProperty("persist.sys.locale", ""); 423 if (!locale.empty()) { 424 return locale; 425 } 426 427 const std::string language = getProperty("persist.sys.language", ""); 428 if (!language.empty()) { 429 const std::string country = getProperty("persist.sys.country", ""); 430 const std::string variant = getProperty("persist.sys.localevar", ""); 431 432 std::string out = language; 433 if (!country.empty()) { 434 out = out + "-" + country; 435 } 436 437 if (!variant.empty()) { 438 out = out + "-" + variant; 439 } 440 441 return out; 442 } 443 444 const std::string productLocale = getProperty("ro.product.locale", ""); 445 if (!productLocale.empty()) { 446 return productLocale; 447 } 448 449 // If persist.sys.locale and ro.product.locale are missing, 450 // construct a locale value from the individual locale components. 451 const std::string productLanguage = getProperty("ro.product.locale.language", "en"); 452 const std::string productRegion = getProperty("ro.product.locale.region", "US"); 453 454 return productLanguage + "-" + productRegion; 455 } 456 457 void AndroidRuntime::addOption(const char* optionString, void* extraInfo) 458 { 459 JavaVMOption opt; 460 opt.optionString = optionString; 461 opt.extraInfo = extraInfo; 462 mOptions.add(opt); 463 } 464 465 /* 466 * Parse a property containing space-separated options that should be 467 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap". 468 * 469 * This will cut up "extraOptsBuf" as we chop it into individual options. 470 * 471 * If "quotingArg" is non-null, it is passed before each extra option in mOptions. 472 * 473 * Adds the strings, if any, to mOptions. 474 */ 475 void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg) 476 { 477 char* start = extraOptsBuf; 478 char* end = NULL; 479 while (*start != '\0') { 480 while (*start == ' ') /* skip leading whitespace */ 481 start++; 482 if (*start == '\0') /* was trailing ws, bail */ 483 break; 484 485 end = start+1; 486 while (*end != ' ' && *end != '\0') /* find end of token */ 487 end++; 488 if (*end == ' ') 489 *end++ = '\0'; /* mark end, advance to indicate more */ 490 491 if (quotingArg != NULL) { 492 addOption(quotingArg); 493 } 494 addOption(start); 495 start = end; 496 } 497 } 498 499 /* 500 * Reads a "property" into "buffer" with a default of "defaultArg". If 501 * the property is non-empty, it is treated as a runtime option such 502 * as "-Xmx32m". 503 * 504 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 505 * 506 * If an argument is found, it is added to mOptions. 507 * 508 * If an option is found, it is added to mOptions and true is 509 * returned. Otherwise false is returned. 510 */ 511 bool AndroidRuntime::parseRuntimeOption(const char* property, 512 char* buffer, 513 const char* runtimeArg, 514 const char* defaultArg) 515 { 516 strcpy(buffer, runtimeArg); 517 size_t runtimeArgLen = strlen(runtimeArg); 518 property_get(property, buffer+runtimeArgLen, defaultArg); 519 if (buffer[runtimeArgLen] == '\0') { 520 return false; 521 } 522 addOption(buffer); 523 return true; 524 } 525 526 /* 527 * Reads a "property" into "buffer". If the property is non-empty, it 528 * is treated as a dex2oat compiler option that should be 529 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified". 530 * 531 * The "compilerArg" is a prefix for the option such as "--compiler-filter=". 532 * 533 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 534 * 535 * If an option is found, it is added to mOptions and true is 536 * returned. Otherwise false is returned. 537 */ 538 bool AndroidRuntime::parseCompilerOption(const char* property, 539 char* buffer, 540 const char* compilerArg, 541 const char* quotingArg) 542 { 543 strcpy(buffer, compilerArg); 544 size_t compilerArgLen = strlen(compilerArg); 545 property_get(property, buffer+compilerArgLen, ""); 546 if (buffer[compilerArgLen] == '\0') { 547 return false; 548 } 549 addOption(quotingArg); 550 addOption(buffer); 551 return true; 552 } 553 554 /* 555 * Reads a "property" into "buffer". If the property is non-empty, it 556 * is treated as a dex2oat compiler runtime option that should be 557 * passed as a quoted option, e.g. "-Ximage-compiler-option 558 * --runtime-arg -Ximage-compiler-option -Xmx32m". 559 * 560 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 561 * 562 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 563 * 564 * If an option is found, it is added to mOptions and true is 565 * returned. Otherwise false is returned. 566 */ 567 bool AndroidRuntime::parseCompilerRuntimeOption(const char* property, 568 char* buffer, 569 const char* runtimeArg, 570 const char* quotingArg) 571 { 572 strcpy(buffer, runtimeArg); 573 size_t runtimeArgLen = strlen(runtimeArg); 574 property_get(property, buffer+runtimeArgLen, ""); 575 if (buffer[runtimeArgLen] == '\0') { 576 return false; 577 } 578 addOption(quotingArg); 579 addOption("--runtime-arg"); 580 addOption(quotingArg); 581 addOption(buffer); 582 return true; 583 } 584 585 /* 586 * Start the Dalvik Virtual Machine. 587 * 588 * Various arguments, most determined by system properties, are passed in. 589 * The "mOptions" vector is updated. 590 * 591 * CAUTION: when adding options in here, be careful not to put the 592 * char buffer inside a nested scope. Adding the buffer to the 593 * options using mOptions.add() does not copy the buffer, so if the 594 * buffer goes out of scope the option may be overwritten. It's best 595 * to put the buffer at the top of the function so that it is more 596 * unlikely that someone will surround it in a scope at a later time 597 * and thus introduce a bug. 598 * 599 * Returns 0 on success. 600 */ 601 int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote) 602 { 603 JavaVMInitArgs initArgs; 604 char propBuf[PROPERTY_VALUE_MAX]; 605 char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX]; 606 char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX]; 607 char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 608 char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 609 char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX]; 610 char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX]; 611 char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX]; 612 char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX]; 613 char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX]; 614 char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX]; 615 char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX]; 616 char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX]; 617 char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX]; 618 char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX]; 619 char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX]; 620 char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX]; 621 char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX]; 622 char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX]; 623 char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 624 char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 625 char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 626 char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 627 char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 628 char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 629 char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 630 char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 631 char dex2oat_isa_variant_key[PROPERTY_KEY_MAX]; 632 char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX]; 633 char dex2oat_isa_features_key[PROPERTY_KEY_MAX]; 634 char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX]; 635 char dex2oatFlagsBuf[PROPERTY_VALUE_MAX]; 636 char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX]; 637 char extraOptsBuf[PROPERTY_VALUE_MAX]; 638 char voldDecryptBuf[PROPERTY_VALUE_MAX]; 639 enum { 640 kEMDefault, 641 kEMIntPortable, 642 kEMIntFast, 643 kEMJitCompiler, 644 } executionMode = kEMDefault; 645 char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX]; 646 char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX]; 647 char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX]; 648 char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX]; 649 char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX]; 650 char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX]; 651 char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX]; 652 653 bool checkJni = false; 654 property_get("dalvik.vm.checkjni", propBuf, ""); 655 if (strcmp(propBuf, "true") == 0) { 656 checkJni = true; 657 } else if (strcmp(propBuf, "false") != 0) { 658 /* property is neither true nor false; fall back on kernel parameter */ 659 property_get("ro.kernel.android.checkjni", propBuf, ""); 660 if (propBuf[0] == '1') { 661 checkJni = true; 662 } 663 } 664 ALOGV("CheckJNI is %s\n", checkJni ? "ON" : "OFF"); 665 if (checkJni) { 666 /* extended JNI checking */ 667 addOption("-Xcheck:jni"); 668 669 /* with -Xcheck:jni, this provides a JNI function call trace */ 670 //addOption("-verbose:jni"); 671 } 672 673 property_get("dalvik.vm.execution-mode", propBuf, ""); 674 if (strcmp(propBuf, "int:portable") == 0) { 675 executionMode = kEMIntPortable; 676 } else if (strcmp(propBuf, "int:fast") == 0) { 677 executionMode = kEMIntFast; 678 } else if (strcmp(propBuf, "int:jit") == 0) { 679 executionMode = kEMJitCompiler; 680 } 681 682 parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:"); 683 684 strcpy(jniOptsBuf, "-Xjniopts:"); 685 if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) { 686 ALOGI("JNI options: '%s'\n", jniOptsBuf); 687 } 688 689 /* route exit() to our handler */ 690 addOption("exit", (void*) runtime_exit); 691 692 /* route fprintf() to our handler */ 693 addOption("vfprintf", (void*) runtime_vfprintf); 694 695 /* register the framework-specific "is sensitive thread" hook */ 696 addOption("sensitiveThread", (void*) runtime_isSensitiveThread); 697 698 /* enable verbose; standard options are { jni, gc, class } */ 699 //addOption("-verbose:jni"); 700 addOption("-verbose:gc"); 701 //addOption("-verbose:class"); 702 703 /* 704 * The default starting and maximum size of the heap. Larger 705 * values should be specified in a product property override. 706 */ 707 parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m"); 708 parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m"); 709 710 parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit="); 711 parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree="); 712 parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree="); 713 parseRuntimeOption("dalvik.vm.heaptargetutilization", 714 heaptargetutilizationOptsBuf, 715 "-XX:HeapTargetUtilization="); 716 717 /* 718 * JIT related options. 719 */ 720 parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:"); 721 parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:"); 722 parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:"); 723 parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:"); 724 property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, ""); 725 if (strcmp(useJitProfilesOptsBuf, "true") == 0) { 726 addOption("-Xjitsaveprofilinginfo"); 727 } 728 729 parseRuntimeOption("dalvik.vm.jitprithreadweight", 730 jitprithreadweightOptBuf, 731 "-Xjitprithreadweight:"); 732 733 parseRuntimeOption("dalvik.vm.jittransitionweight", 734 jittransitionweightOptBuf, 735 "-Xjittransitionweight:"); 736 737 property_get("ro.config.low_ram", propBuf, ""); 738 if (strcmp(propBuf, "true") == 0) { 739 addOption("-XX:LowMemoryMode"); 740 } 741 742 parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:"); 743 parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC="); 744 745 /* 746 * Enable debugging only for apps forked from zygote. 747 * Set suspend=y to pause during VM init and use android ADB transport. 748 */ 749 if (zygote) { 750 addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y"); 751 } 752 753 parseRuntimeOption("dalvik.vm.lockprof.threshold", 754 lockProfThresholdBuf, 755 "-Xlockprofthreshold:"); 756 757 if (executionMode == kEMIntPortable) { 758 addOption("-Xint:portable"); 759 } else if (executionMode == kEMIntFast) { 760 addOption("-Xint:fast"); 761 } else if (executionMode == kEMJitCompiler) { 762 addOption("-Xint:jit"); 763 } 764 765 // If we are booting without the real /data, don't spend time compiling. 766 property_get("vold.decrypt", voldDecryptBuf, ""); 767 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || 768 (strcmp(voldDecryptBuf, "1") == 0)); 769 770 // Extra options for boot.art/boot.oat image generation. 771 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, 772 "-Xms", "-Ximage-compiler-option"); 773 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, 774 "-Xmx", "-Ximage-compiler-option"); 775 if (skip_compilation) { 776 addOption("-Ximage-compiler-option"); 777 addOption("--compiler-filter=assume-verified"); 778 } else { 779 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, 780 "--compiler-filter=", "-Ximage-compiler-option"); 781 } 782 783 // Make sure there is a preloaded-classes file. 784 if (!hasFile("/system/etc/preloaded-classes")) { 785 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n", 786 strerror(errno)); 787 return -1; 788 } 789 addOption("-Ximage-compiler-option"); 790 addOption("--image-classes=/system/etc/preloaded-classes"); 791 792 // If there is a compiled-classes file, push it. 793 if (hasFile("/system/etc/compiled-classes")) { 794 addOption("-Ximage-compiler-option"); 795 addOption("--compiled-classes=/system/etc/compiled-classes"); 796 } 797 798 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); 799 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); 800 801 // Extra options for DexClassLoader. 802 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, 803 "-Xms", "-Xcompiler-option"); 804 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, 805 "-Xmx", "-Xcompiler-option"); 806 if (skip_compilation) { 807 addOption("-Xcompiler-option"); 808 addOption("--compiler-filter=assume-verified"); 809 810 // We skip compilation when a minimal runtime is brought up for decryption. In that case 811 // /data is temporarily backed by a tmpfs, which is usually small. 812 // If the system image contains prebuilts, they will be relocated into the tmpfs. In this 813 // specific situation it is acceptable to *not* relocate and run out of the prebuilts 814 // directly instead. 815 addOption("--runtime-arg"); 816 addOption("-Xnorelocate"); 817 } else { 818 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, 819 "--compiler-filter=", "-Xcompiler-option"); 820 } 821 parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option"); 822 parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j", 823 "-Ximage-compiler-option"); 824 825 // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to 826 // pass the instruction-set-features/variant as an image-compiler-option. 827 // TODO: Find a better way for the instruction-set. 828 #if defined(__arm__) 829 constexpr const char* instruction_set = "arm"; 830 #elif defined(__aarch64__) 831 constexpr const char* instruction_set = "arm64"; 832 #elif defined(__mips__) && !defined(__LP64__) 833 constexpr const char* instruction_set = "mips"; 834 #elif defined(__mips__) && defined(__LP64__) 835 constexpr const char* instruction_set = "mips64"; 836 #elif defined(__i386__) 837 constexpr const char* instruction_set = "x86"; 838 #elif defined(__x86_64__) 839 constexpr const char* instruction_set = "x86_64"; 840 #else 841 constexpr const char* instruction_set = "unknown"; 842 #endif 843 // Note: it is OK to reuse the buffer, as the values are exactly the same between 844 // * compiler-option, used for runtime compilation (DexClassLoader) 845 // * image-compiler-option, used for boot-image compilation on device 846 847 // Copy the variant. 848 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set); 849 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 850 "--instruction-set-variant=", "-Ximage-compiler-option"); 851 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 852 "--instruction-set-variant=", "-Xcompiler-option"); 853 // Copy the features. 854 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set); 855 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 856 "--instruction-set-features=", "-Ximage-compiler-option"); 857 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 858 "--instruction-set-features=", "-Xcompiler-option"); 859 860 861 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); 862 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); 863 864 /* extra options; parse this late so it overrides others */ 865 property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); 866 parseExtraOpts(extraOptsBuf, NULL); 867 868 /* Set the properties for locale */ 869 { 870 strcpy(localeOption, "-Duser.locale="); 871 const std::string locale = readLocale(); 872 strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX); 873 addOption(localeOption); 874 } 875 876 // Trace files are stored in /data/misc/trace which is writable only in debug mode. 877 property_get("ro.debuggable", propBuf, "0"); 878 if (strcmp(propBuf, "1") == 0) { 879 property_get("dalvik.vm.method-trace", propBuf, "false"); 880 if (strcmp(propBuf, "true") == 0) { 881 addOption("-Xmethod-trace"); 882 parseRuntimeOption("dalvik.vm.method-trace-file", 883 methodTraceFileBuf, 884 "-Xmethod-trace-file:"); 885 parseRuntimeOption("dalvik.vm.method-trace-file-siz", 886 methodTraceFileSizeBuf, 887 "-Xmethod-trace-file-size:"); 888 property_get("dalvik.vm.method-trace-stream", propBuf, "false"); 889 if (strcmp(propBuf, "true") == 0) { 890 addOption("-Xmethod-trace-stream"); 891 } 892 } 893 } 894 895 // Native bridge library. "0" means that native bridge is disabled. 896 property_get("ro.dalvik.vm.native.bridge", propBuf, ""); 897 if (propBuf[0] == '\0') { 898 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); 899 } else if (strcmp(propBuf, "0") != 0) { 900 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, 901 "-XX:NativeBridge=%s", propBuf); 902 addOption(nativeBridgeLibrary); 903 } 904 905 #if defined(__LP64__) 906 const char* cpu_abilist_property_name = "ro.product.cpu.abilist64"; 907 #else 908 const char* cpu_abilist_property_name = "ro.product.cpu.abilist32"; 909 #endif // defined(__LP64__) 910 property_get(cpu_abilist_property_name, propBuf, ""); 911 if (propBuf[0] == '\0') { 912 ALOGE("%s is not expected to be empty", cpu_abilist_property_name); 913 return -1; 914 } 915 snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf); 916 addOption(cpuAbiListBuf); 917 918 // Dalvik-cache pruning counter. 919 parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf, 920 "-Xzygote-max-boot-retry="); 921 922 /* 923 * When running with debug.generate-debug-info, add --generate-debug-info to 924 * the compiler options so that the boot image, if it is compiled on device, 925 * will include native debugging information. 926 */ 927 property_get("debug.generate-debug-info", propBuf, ""); 928 if (strcmp(propBuf, "true") == 0) { 929 addOption("-Xcompiler-option"); 930 addOption("--generate-debug-info"); 931 addOption("-Ximage-compiler-option"); 932 addOption("--generate-debug-info"); 933 } 934 935 /* 936 * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will 937 * contain the fingerprint and can be parsed. 938 */ 939 parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:"); 940 941 initArgs.version = JNI_VERSION_1_4; 942 initArgs.options = mOptions.editArray(); 943 initArgs.nOptions = mOptions.size(); 944 initArgs.ignoreUnrecognized = JNI_FALSE; 945 946 /* 947 * Initialize the VM. 948 * 949 * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. 950 * If this call succeeds, the VM is ready, and we can start issuing 951 * JNI calls. 952 */ 953 if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { 954 ALOGE("JNI_CreateJavaVM failed\n"); 955 return -1; 956 } 957 958 return 0; 959 } 960 961 char* AndroidRuntime::toSlashClassName(const char* className) 962 { 963 char* result = strdup(className); 964 for (char* cp = result; *cp != '\0'; cp++) { 965 if (*cp == '.') { 966 *cp = '/'; 967 } 968 } 969 return result; 970 } 971 972 /** Create a Java string from an ASCII or Latin-1 string */ 973 jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { 974 if (!bytes) return NULL; 975 int length = strlen(bytes); 976 jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); 977 if (!buffer) return NULL; 978 jchar* chp = buffer; 979 for (int i = 0; i < length; i++) { 980 *chp++ = *bytes++; 981 } 982 return env->NewString(buffer, length); 983 } 984 985 986 /* 987 * Start the Android runtime. This involves starting the virtual machine 988 * and calling the "static void main(String[] args)" method in the class 989 * named by "className". 990 * 991 * Passes the main function two arguments, the class name and the specified 992 * options string. 993 */ 994 void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote) 995 { 996 ALOGD(">>>>>> START %s uid %d <<<<<<\n", 997 className != NULL ? className : "(unknown)", getuid()); 998 999 static const String8 startSystemServer("start-system-server"); 1000 1001 /* 1002 * 'startSystemServer == true' means runtime is obsolete and not run from 1003 * init.rc anymore, so we print out the boot start event here. 1004 */ 1005 for (size_t i = 0; i < options.size(); ++i) { 1006 if (options[i] == startSystemServer) { 1007 /* track our progress through the boot sequence */ 1008 const int LOG_BOOT_PROGRESS_START = 3000; 1009 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); 1010 } 1011 } 1012 1013 const char* rootDir = getenv("ANDROID_ROOT"); 1014 if (rootDir == NULL) { 1015 rootDir = "/system"; 1016 if (!hasDir("/system")) { 1017 LOG_FATAL("No root directory specified, and /android does not exist."); 1018 return; 1019 } 1020 setenv("ANDROID_ROOT", rootDir, 1); 1021 } 1022 1023 //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); 1024 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); 1025 1026 /* start the virtual machine */ 1027 JniInvocation jni_invocation; 1028 jni_invocation.Init(NULL); 1029 JNIEnv* env; 1030 if (startVm(&mJavaVM, &env, zygote) != 0) { 1031 return; 1032 } 1033 onVmCreated(env); 1034 1035 /* 1036 * Register android functions. 1037 */ 1038 if (startReg(env) < 0) { 1039 ALOGE("Unable to register all android natives\n"); 1040 return; 1041 } 1042 1043 /* 1044 * We want to call main() with a String array with arguments in it. 1045 * At present we have two arguments, the class name and an option string. 1046 * Create an array to hold them. 1047 */ 1048 jclass stringClass; 1049 jobjectArray strArray; 1050 jstring classNameStr; 1051 1052 stringClass = env->FindClass("java/lang/String"); 1053 assert(stringClass != NULL); 1054 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); 1055 assert(strArray != NULL); 1056 classNameStr = env->NewStringUTF(className); 1057 assert(classNameStr != NULL); 1058 env->SetObjectArrayElement(strArray, 0, classNameStr); 1059 1060 for (size_t i = 0; i < options.size(); ++i) { 1061 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); 1062 assert(optionsStr != NULL); 1063 env->SetObjectArrayElement(strArray, i + 1, optionsStr); 1064 } 1065 1066 /* 1067 * Start VM. This thread becomes the main thread of the VM, and will 1068 * not return until the VM exits. 1069 */ 1070 char* slashClassName = toSlashClassName(className); 1071 jclass startClass = env->FindClass(slashClassName); 1072 if (startClass == NULL) { 1073 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); 1074 /* keep going */ 1075 } else { 1076 jmethodID startMeth = env->GetStaticMethodID(startClass, "main", 1077 "([Ljava/lang/String;)V"); 1078 if (startMeth == NULL) { 1079 ALOGE("JavaVM unable to find main() in '%s'\n", className); 1080 /* keep going */ 1081 } else { 1082 env->CallStaticVoidMethod(startClass, startMeth, strArray); 1083 1084 #if 0 1085 if (env->ExceptionCheck()) 1086 threadExitUncaughtException(env); 1087 #endif 1088 } 1089 } 1090 free(slashClassName); 1091 1092 ALOGD("Shutting down VM\n"); 1093 if (mJavaVM->DetachCurrentThread() != JNI_OK) 1094 ALOGW("Warning: unable to detach main thread\n"); 1095 if (mJavaVM->DestroyJavaVM() != 0) 1096 ALOGW("Warning: VM did not shut down cleanly\n"); 1097 } 1098 1099 void AndroidRuntime::exit(int code) 1100 { 1101 if (mExitWithoutCleanup) { 1102 ALOGI("VM exiting with result code %d, cleanup skipped.", code); 1103 ::_exit(code); 1104 } else { 1105 ALOGI("VM exiting with result code %d.", code); 1106 onExit(code); 1107 ::exit(code); 1108 } 1109 } 1110 1111 void AndroidRuntime::onVmCreated(JNIEnv* env) 1112 { 1113 // If AndroidRuntime had anything to do here, we'd have done it in 'start'. 1114 } 1115 1116 /* 1117 * Get the JNIEnv pointer for this thread. 1118 * 1119 * Returns NULL if the slot wasn't allocated or populated. 1120 */ 1121 /*static*/ JNIEnv* AndroidRuntime::getJNIEnv() 1122 { 1123 JNIEnv* env; 1124 JavaVM* vm = AndroidRuntime::getJavaVM(); 1125 assert(vm != NULL); 1126 1127 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) 1128 return NULL; 1129 return env; 1130 } 1131 1132 /* 1133 * Makes the current thread visible to the VM. 1134 * 1135 * The JNIEnv pointer returned is only valid for the current thread, and 1136 * thus must be tucked into thread-local storage. 1137 */ 1138 static int javaAttachThread(const char* threadName, JNIEnv** pEnv) 1139 { 1140 JavaVMAttachArgs args; 1141 JavaVM* vm; 1142 jint result; 1143 1144 vm = AndroidRuntime::getJavaVM(); 1145 assert(vm != NULL); 1146 1147 args.version = JNI_VERSION_1_4; 1148 args.name = (char*) threadName; 1149 args.group = NULL; 1150 1151 result = vm->AttachCurrentThread(pEnv, (void*) &args); 1152 if (result != JNI_OK) 1153 ALOGI("NOTE: attach of thread '%s' failed\n", threadName); 1154 1155 return result; 1156 } 1157 1158 /* 1159 * Detach the current thread from the set visible to the VM. 1160 */ 1161 static int javaDetachThread(void) 1162 { 1163 JavaVM* vm; 1164 jint result; 1165 1166 vm = AndroidRuntime::getJavaVM(); 1167 assert(vm != NULL); 1168 1169 result = vm->DetachCurrentThread(); 1170 if (result != JNI_OK) 1171 ALOGE("ERROR: thread detach failed\n"); 1172 return result; 1173 } 1174 1175 /* 1176 * When starting a native thread that will be visible from the VM, we 1177 * bounce through this to get the right attach/detach action. 1178 * Note that this function calls free(args) 1179 */ 1180 /*static*/ int AndroidRuntime::javaThreadShell(void* args) { 1181 void* start = ((void**)args)[0]; 1182 void* userData = ((void **)args)[1]; 1183 char* name = (char*) ((void **)args)[2]; // we own this storage 1184 free(args); 1185 JNIEnv* env; 1186 int result; 1187 1188 /* hook us into the VM */ 1189 if (javaAttachThread(name, &env) != JNI_OK) 1190 return -1; 1191 1192 /* start the thread running */ 1193 result = (*(android_thread_func_t)start)(userData); 1194 1195 /* unhook us */ 1196 javaDetachThread(); 1197 free(name); 1198 1199 return result; 1200 } 1201 1202 /* 1203 * This is invoked from androidCreateThreadEtc() via the callback 1204 * set with androidSetCreateThreadFunc(). 1205 * 1206 * We need to create the new thread in such a way that it gets hooked 1207 * into the VM before it really starts executing. 1208 */ 1209 /*static*/ int AndroidRuntime::javaCreateThreadEtc( 1210 android_thread_func_t entryFunction, 1211 void* userData, 1212 const char* threadName, 1213 int32_t threadPriority, 1214 size_t threadStackSize, 1215 android_thread_id_t* threadId) 1216 { 1217 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free 1218 int result; 1219 1220 LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc"); 1221 1222 args[0] = (void*) entryFunction; 1223 args[1] = userData; 1224 args[2] = (void*) strdup(threadName); // javaThreadShell must free 1225 1226 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, 1227 threadName, threadPriority, threadStackSize, threadId); 1228 return result; 1229 } 1230 1231 /* 1232 * Create a thread that is visible from the VM. 1233 * 1234 * This is called from elsewhere in the library. 1235 */ 1236 /*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, 1237 void (*start)(void *), void* arg) 1238 { 1239 android_thread_id_t threadId = 0; 1240 javaCreateThreadEtc((android_thread_func_t) start, arg, name, 1241 ANDROID_PRIORITY_DEFAULT, 0, &threadId); 1242 return threadId; 1243 } 1244 1245 #if 0 1246 static void quickTest(void* arg) 1247 { 1248 const char* str = (const char*) arg; 1249 1250 printf("In quickTest: %s\n", str); 1251 } 1252 #endif 1253 1254 #ifdef NDEBUG 1255 #define REG_JNI(name) { name } 1256 struct RegJNIRec { 1257 int (*mProc)(JNIEnv*); 1258 }; 1259 #else 1260 #define REG_JNI(name) { name, #name } 1261 struct RegJNIRec { 1262 int (*mProc)(JNIEnv*); 1263 const char* mName; 1264 }; 1265 #endif 1266 1267 typedef void (*RegJAMProc)(); 1268 1269 static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) 1270 { 1271 for (size_t i = 0; i < count; i++) { 1272 if (array[i].mProc(env) < 0) { 1273 #ifndef NDEBUG 1274 ALOGD("----------!!! %s failed to load\n", array[i].mName); 1275 #endif 1276 return -1; 1277 } 1278 } 1279 return 0; 1280 } 1281 1282 static const RegJNIRec gRegJNI[] = { 1283 REG_JNI(register_com_android_internal_os_RuntimeInit), 1284 REG_JNI(register_com_android_internal_os_ZygoteInit), 1285 REG_JNI(register_android_os_SystemClock), 1286 REG_JNI(register_android_util_EventLog), 1287 REG_JNI(register_android_util_Log), 1288 REG_JNI(register_android_util_MemoryIntArray), 1289 REG_JNI(register_android_util_PathParser), 1290 REG_JNI(register_android_app_admin_SecurityLog), 1291 REG_JNI(register_android_content_AssetManager), 1292 REG_JNI(register_android_content_StringBlock), 1293 REG_JNI(register_android_content_XmlBlock), 1294 REG_JNI(register_android_text_AndroidCharacter), 1295 REG_JNI(register_android_text_StaticLayout), 1296 REG_JNI(register_android_text_AndroidBidi), 1297 REG_JNI(register_android_view_InputDevice), 1298 REG_JNI(register_android_view_KeyCharacterMap), 1299 REG_JNI(register_android_os_Process), 1300 REG_JNI(register_android_os_SystemProperties), 1301 REG_JNI(register_android_os_Binder), 1302 REG_JNI(register_android_os_Parcel), 1303 REG_JNI(register_android_os_HwBinder), 1304 REG_JNI(register_android_os_HwBlob), 1305 REG_JNI(register_android_os_HwParcel), 1306 REG_JNI(register_android_os_HwRemoteBinder), 1307 REG_JNI(register_android_os_VintfObject), 1308 REG_JNI(register_android_os_VintfRuntimeInfo), 1309 REG_JNI(register_android_nio_utils), 1310 REG_JNI(register_android_graphics_Canvas), 1311 REG_JNI(register_android_graphics_Graphics), 1312 REG_JNI(register_android_view_DisplayEventReceiver), 1313 REG_JNI(register_android_view_RenderNode), 1314 REG_JNI(register_android_view_RenderNodeAnimator), 1315 REG_JNI(register_android_view_DisplayListCanvas), 1316 REG_JNI(register_android_view_HardwareLayer), 1317 REG_JNI(register_android_view_ThreadedRenderer), 1318 REG_JNI(register_android_view_Surface), 1319 REG_JNI(register_android_view_SurfaceControl), 1320 REG_JNI(register_android_view_SurfaceSession), 1321 REG_JNI(register_android_view_TextureView), 1322 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), 1323 REG_JNI(register_com_google_android_gles_jni_EGLImpl), 1324 REG_JNI(register_com_google_android_gles_jni_GLImpl), 1325 REG_JNI(register_android_opengl_jni_EGL14), 1326 REG_JNI(register_android_opengl_jni_EGLExt), 1327 REG_JNI(register_android_opengl_jni_GLES10), 1328 REG_JNI(register_android_opengl_jni_GLES10Ext), 1329 REG_JNI(register_android_opengl_jni_GLES11), 1330 REG_JNI(register_android_opengl_jni_GLES11Ext), 1331 REG_JNI(register_android_opengl_jni_GLES20), 1332 REG_JNI(register_android_opengl_jni_GLES30), 1333 REG_JNI(register_android_opengl_jni_GLES31), 1334 REG_JNI(register_android_opengl_jni_GLES31Ext), 1335 REG_JNI(register_android_opengl_jni_GLES32), 1336 1337 REG_JNI(register_android_graphics_Bitmap), 1338 REG_JNI(register_android_graphics_BitmapFactory), 1339 REG_JNI(register_android_graphics_BitmapRegionDecoder), 1340 REG_JNI(register_android_graphics_Camera), 1341 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), 1342 REG_JNI(register_android_graphics_CanvasProperty), 1343 REG_JNI(register_android_graphics_ColorFilter), 1344 REG_JNI(register_android_graphics_DrawFilter), 1345 REG_JNI(register_android_graphics_FontFamily), 1346 REG_JNI(register_android_graphics_GraphicBuffer), 1347 REG_JNI(register_android_graphics_Interpolator), 1348 REG_JNI(register_android_graphics_MaskFilter), 1349 REG_JNI(register_android_graphics_Matrix), 1350 REG_JNI(register_android_graphics_Movie), 1351 REG_JNI(register_android_graphics_NinePatch), 1352 REG_JNI(register_android_graphics_Paint), 1353 REG_JNI(register_android_graphics_Path), 1354 REG_JNI(register_android_graphics_PathMeasure), 1355 REG_JNI(register_android_graphics_PathEffect), 1356 REG_JNI(register_android_graphics_Picture), 1357 REG_JNI(register_android_graphics_Region), 1358 REG_JNI(register_android_graphics_Shader), 1359 REG_JNI(register_android_graphics_SurfaceTexture), 1360 REG_JNI(register_android_graphics_Typeface), 1361 REG_JNI(register_android_graphics_YuvImage), 1362 REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable), 1363 REG_JNI(register_android_graphics_drawable_VectorDrawable), 1364 REG_JNI(register_android_graphics_pdf_PdfDocument), 1365 REG_JNI(register_android_graphics_pdf_PdfEditor), 1366 REG_JNI(register_android_graphics_pdf_PdfRenderer), 1367 1368 REG_JNI(register_android_database_CursorWindow), 1369 REG_JNI(register_android_database_SQLiteConnection), 1370 REG_JNI(register_android_database_SQLiteGlobal), 1371 REG_JNI(register_android_database_SQLiteDebug), 1372 REG_JNI(register_android_os_Debug), 1373 REG_JNI(register_android_os_FileObserver), 1374 REG_JNI(register_android_os_GraphicsEnvironment), 1375 REG_JNI(register_android_os_MessageQueue), 1376 REG_JNI(register_android_os_SELinux), 1377 REG_JNI(register_android_os_seccomp), 1378 REG_JNI(register_android_os_Trace), 1379 REG_JNI(register_android_os_UEventObserver), 1380 REG_JNI(register_android_net_LocalSocketImpl), 1381 REG_JNI(register_android_net_NetworkUtils), 1382 REG_JNI(register_android_net_TrafficStats), 1383 REG_JNI(register_android_os_MemoryFile), 1384 REG_JNI(register_com_android_internal_os_PathClassLoaderFactory), 1385 REG_JNI(register_com_android_internal_os_Zygote), 1386 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), 1387 REG_JNI(register_android_hardware_Camera), 1388 REG_JNI(register_android_hardware_camera2_CameraMetadata), 1389 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), 1390 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), 1391 REG_JNI(register_android_hardware_camera2_DngCreator), 1392 REG_JNI(register_android_hardware_HardwareBuffer), 1393 REG_JNI(register_android_hardware_Radio), 1394 REG_JNI(register_android_hardware_SensorManager), 1395 REG_JNI(register_android_hardware_SerialPort), 1396 REG_JNI(register_android_hardware_SoundTrigger), 1397 REG_JNI(register_android_hardware_UsbDevice), 1398 REG_JNI(register_android_hardware_UsbDeviceConnection), 1399 REG_JNI(register_android_hardware_UsbRequest), 1400 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), 1401 REG_JNI(register_android_media_AudioRecord), 1402 REG_JNI(register_android_media_AudioSystem), 1403 REG_JNI(register_android_media_AudioTrack), 1404 REG_JNI(register_android_media_JetPlayer), 1405 REG_JNI(register_android_media_RemoteDisplay), 1406 REG_JNI(register_android_media_ToneGenerator), 1407 1408 REG_JNI(register_android_opengl_classes), 1409 REG_JNI(register_android_server_NetworkManagementSocketTagger), 1410 REG_JNI(register_android_ddm_DdmHandleNativeHeap), 1411 REG_JNI(register_android_backup_BackupDataInput), 1412 REG_JNI(register_android_backup_BackupDataOutput), 1413 REG_JNI(register_android_backup_FileBackupHelperBase), 1414 REG_JNI(register_android_backup_BackupHelperDispatcher), 1415 REG_JNI(register_android_app_backup_FullBackup), 1416 REG_JNI(register_android_app_Activity), 1417 REG_JNI(register_android_app_ActivityThread), 1418 REG_JNI(register_android_app_ApplicationLoaders), 1419 REG_JNI(register_android_app_NativeActivity), 1420 REG_JNI(register_android_util_jar_StrictJarFile), 1421 REG_JNI(register_android_view_InputChannel), 1422 REG_JNI(register_android_view_InputEventReceiver), 1423 REG_JNI(register_android_view_InputEventSender), 1424 REG_JNI(register_android_view_InputQueue), 1425 REG_JNI(register_android_view_KeyEvent), 1426 REG_JNI(register_android_view_MotionEvent), 1427 REG_JNI(register_android_view_PointerIcon), 1428 REG_JNI(register_android_view_VelocityTracker), 1429 1430 REG_JNI(register_android_content_res_ObbScanner), 1431 REG_JNI(register_android_content_res_Configuration), 1432 1433 REG_JNI(register_android_animation_PropertyValuesHolder), 1434 REG_JNI(register_com_android_internal_content_NativeLibraryHelper), 1435 REG_JNI(register_com_android_internal_net_NetworkStatsFactory), 1436 REG_JNI(register_com_android_internal_os_FuseAppLoop), 1437 }; 1438 1439 /* 1440 * Register android native functions with the VM. 1441 */ 1442 /*static*/ int AndroidRuntime::startReg(JNIEnv* env) 1443 { 1444 ATRACE_NAME("RegisterAndroidNatives"); 1445 /* 1446 * This hook causes all future threads created in this process to be 1447 * attached to the JavaVM. (This needs to go away in favor of JNI 1448 * Attach calls.) 1449 */ 1450 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); 1451 1452 ALOGV("--- registering native functions ---\n"); 1453 1454 /* 1455 * Every "register" function calls one or more things that return 1456 * a local reference (e.g. FindClass). Because we haven't really 1457 * started the VM yet, they're all getting stored in the base frame 1458 * and never released. Use Push/Pop to manage the storage. 1459 */ 1460 env->PushLocalFrame(200); 1461 1462 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { 1463 env->PopLocalFrame(NULL); 1464 return -1; 1465 } 1466 env->PopLocalFrame(NULL); 1467 1468 //createJavaThread("fubar", quickTest, (void*) "hello"); 1469 1470 return 0; 1471 } 1472 1473 AndroidRuntime* AndroidRuntime::getRuntime() 1474 { 1475 return gCurRuntime; 1476 } 1477 1478 /** 1479 * Used by surface flinger's DdmConnection to register native methods from 1480 * the framework. 1481 */ 1482 extern "C" jint registerFrameworkNatives(JNIEnv* env) { 1483 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1484 } 1485 } // namespace android 1486
