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 <nativehelper/JNIHelp.h> 36 #include <nativehelper/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_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 99 extern int register_android_media_AudioRecord(JNIEnv *env); 100 extern int register_android_media_AudioSystem(JNIEnv *env); 101 extern int register_android_media_AudioTrack(JNIEnv *env); 102 extern int register_android_media_JetPlayer(JNIEnv *env); 103 extern int register_android_media_ToneGenerator(JNIEnv *env); 104 105 namespace android { 106 107 /* 108 * JNI-based registration functions. Note these are properly contained in 109 * namespace android. 110 */ 111 extern int register_android_app_admin_SecurityLog(JNIEnv* env); 112 extern int register_android_content_AssetManager(JNIEnv* env); 113 extern int register_android_util_EventLog(JNIEnv* env); 114 extern int register_android_util_Log(JNIEnv* env); 115 extern int register_android_util_MemoryIntArray(JNIEnv* env); 116 extern int register_android_util_PathParser(JNIEnv* env); 117 extern int register_android_content_StringBlock(JNIEnv* env); 118 extern int register_android_content_XmlBlock(JNIEnv* env); 119 extern int register_android_graphics_Canvas(JNIEnv* env); 120 extern int register_android_graphics_CanvasProperty(JNIEnv* env); 121 extern int register_android_graphics_ColorFilter(JNIEnv* env); 122 extern int register_android_graphics_DrawFilter(JNIEnv* env); 123 extern int register_android_graphics_FontFamily(JNIEnv* env); 124 extern int register_android_graphics_Matrix(JNIEnv* env); 125 extern int register_android_graphics_Paint(JNIEnv* env); 126 extern int register_android_graphics_Path(JNIEnv* env); 127 extern int register_android_graphics_PathMeasure(JNIEnv* env); 128 extern int register_android_graphics_Picture(JNIEnv*); 129 extern int register_android_graphics_Region(JNIEnv* env); 130 extern int register_android_graphics_SurfaceTexture(JNIEnv* env); 131 extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env); 132 extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env); 133 extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env); 134 extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env); 135 extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env); 136 extern int register_android_view_DisplayEventReceiver(JNIEnv* env); 137 extern int register_android_view_DisplayListCanvas(JNIEnv* env); 138 extern int register_android_view_HardwareLayer(JNIEnv* env); 139 extern int register_android_view_RenderNode(JNIEnv* env); 140 extern int register_android_view_RenderNodeAnimator(JNIEnv* env); 141 extern int register_android_view_Surface(JNIEnv* env); 142 extern int register_android_view_SurfaceControl(JNIEnv* env); 143 extern int register_android_view_SurfaceSession(JNIEnv* env); 144 extern int register_android_view_TextureView(JNIEnv* env); 145 extern int register_android_view_ThreadedRenderer(JNIEnv* env); 146 extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env); 147 extern int register_android_database_CursorWindow(JNIEnv* env); 148 extern int register_android_database_SQLiteConnection(JNIEnv* env); 149 extern int register_android_database_SQLiteGlobal(JNIEnv* env); 150 extern int register_android_database_SQLiteDebug(JNIEnv* env); 151 extern int register_android_nio_utils(JNIEnv* env); 152 extern int register_android_os_Debug(JNIEnv* env); 153 extern int register_android_os_GraphicsEnvironment(JNIEnv* env); 154 extern int register_android_os_HwBinder(JNIEnv *env); 155 extern int register_android_os_HwBlob(JNIEnv *env); 156 extern int register_android_os_HwParcel(JNIEnv *env); 157 extern int register_android_os_HwRemoteBinder(JNIEnv *env); 158 extern int register_android_os_MessageQueue(JNIEnv* env); 159 extern int register_android_os_Parcel(JNIEnv* env); 160 extern int register_android_os_SELinux(JNIEnv* env); 161 extern int register_android_os_VintfObject(JNIEnv *env); 162 extern int register_android_os_VintfRuntimeInfo(JNIEnv *env); 163 extern int register_android_os_seccomp(JNIEnv* env); 164 extern int register_android_os_SystemProperties(JNIEnv *env); 165 extern int register_android_os_SystemClock(JNIEnv* env); 166 extern int register_android_os_Trace(JNIEnv* env); 167 extern int register_android_os_FileObserver(JNIEnv *env); 168 extern int register_android_os_UEventObserver(JNIEnv* env); 169 extern int register_android_os_MemoryFile(JNIEnv* env); 170 extern int register_android_os_SharedMemory(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_ClassLoaderFactory(JNIEnv* env); 207 extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env); 208 extern int register_com_android_internal_os_Zygote(JNIEnv *env); 209 extern int register_com_android_internal_os_ZygoteInit(JNIEnv *env); 210 extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env); 211 212 static AndroidRuntime* gCurRuntime = NULL; 213 214 /* 215 * Code written in the Java Programming Language calls here from main(). 216 */ 217 static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz) 218 { 219 gCurRuntime->onStarted(); 220 } 221 222 static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz) 223 { 224 gCurRuntime->onZygoteInit(); 225 } 226 227 static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env, 228 jobject clazz, jboolean exitWithoutCleanup) 229 { 230 gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup); 231 } 232 233 /* 234 * JNI registration. 235 */ 236 237 int register_com_android_internal_os_RuntimeInit(JNIEnv* env) 238 { 239 const JNINativeMethod methods[] = { 240 { "nativeFinishInit", "()V", 241 (void*) com_android_internal_os_RuntimeInit_nativeFinishInit }, 242 { "nativeSetExitWithoutCleanup", "(Z)V", 243 (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup }, 244 }; 245 return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit", 246 methods, NELEM(methods)); 247 } 248 249 int register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env) 250 { 251 const JNINativeMethod methods[] = { 252 { "nativeZygoteInit", "()V", 253 (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit }, 254 }; 255 return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit", 256 methods, NELEM(methods)); 257 } 258 259 // ---------------------------------------------------------------------- 260 261 /*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL; 262 263 AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) : 264 mExitWithoutCleanup(false), 265 mArgBlockStart(argBlockStart), 266 mArgBlockLength(argBlockLength) 267 { 268 SkGraphics::Init(); 269 270 // Pre-allocate enough space to hold a fair number of options. 271 mOptions.setCapacity(20); 272 273 assert(gCurRuntime == NULL); // one per process 274 gCurRuntime = this; 275 } 276 277 AndroidRuntime::~AndroidRuntime() 278 { 279 } 280 281 /* 282 * Register native methods using JNI. 283 */ 284 /*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env, 285 const char* className, const JNINativeMethod* gMethods, int numMethods) 286 { 287 return jniRegisterNativeMethods(env, className, gMethods, numMethods); 288 } 289 290 void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) { 291 if (setProcName) { 292 int len = strlen(argv0); 293 if (len < 15) { 294 pthread_setname_np(pthread_self(), argv0); 295 } else { 296 pthread_setname_np(pthread_self(), argv0 + len - 15); 297 } 298 } 299 memset(mArgBlockStart, 0, mArgBlockLength); 300 strlcpy(mArgBlockStart, argv0, mArgBlockLength); 301 } 302 303 status_t AndroidRuntime::callMain(const String8& className, jclass clazz, 304 const Vector<String8>& args) 305 { 306 JNIEnv* env; 307 jmethodID methodId; 308 309 ALOGD("Calling main entry %s", className.string()); 310 311 env = getJNIEnv(); 312 if (clazz == NULL || env == NULL) { 313 return UNKNOWN_ERROR; 314 } 315 316 methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V"); 317 if (methodId == NULL) { 318 ALOGE("ERROR: could not find method %s.main(String[])\n", className.string()); 319 return UNKNOWN_ERROR; 320 } 321 322 /* 323 * We want to call main() with a String array with our arguments in it. 324 * Create an array and populate it. 325 */ 326 jclass stringClass; 327 jobjectArray strArray; 328 329 const size_t numArgs = args.size(); 330 stringClass = env->FindClass("java/lang/String"); 331 strArray = env->NewObjectArray(numArgs, stringClass, NULL); 332 333 for (size_t i = 0; i < numArgs; i++) { 334 jstring argStr = env->NewStringUTF(args[i].string()); 335 env->SetObjectArrayElement(strArray, i, argStr); 336 } 337 338 env->CallStaticVoidMethod(clazz, methodId, strArray); 339 return NO_ERROR; 340 } 341 342 /* 343 * The VM calls this through the "exit" hook. 344 */ 345 static void runtime_exit(int code) 346 { 347 gCurRuntime->exit(code); 348 } 349 350 /* 351 * The VM calls this through the "vfprintf" hook. 352 * 353 * We ignore "fp" and just write the results to the log file. 354 */ 355 static void runtime_vfprintf(FILE* fp, const char* format, va_list ap) 356 { 357 LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap); 358 } 359 360 /** 361 * The VM calls this when mutex contention debugging is enabled to 362 * determine whether or not the blocked thread was a "sensitive thread" 363 * for user responsiveness/smoothess. 364 * 365 * Our policy for this is whether or not we're tracing any StrictMode 366 * events on this thread (which we might've inherited via Binder calls 367 * into us) 368 */ 369 static bool runtime_isSensitiveThread() { 370 IPCThreadState* state = IPCThreadState::selfOrNull(); 371 return state && state->getStrictModePolicy() != 0; 372 } 373 374 static int hasDir(const char* dir) 375 { 376 struct stat s; 377 int res = stat(dir, &s); 378 if (res == 0) { 379 return S_ISDIR(s.st_mode); 380 } 381 return 0; 382 } 383 384 static bool hasFile(const char* file) { 385 struct stat s; 386 int res = stat(file, &s); 387 if (res == 0) { 388 return S_ISREG(s.st_mode); 389 } 390 return false; 391 } 392 393 // Convenience wrapper over the property API that returns an 394 // std::string. 395 std::string getProperty(const char* key, const char* defaultValue) { 396 std::vector<char> temp(PROPERTY_VALUE_MAX); 397 const int len = property_get(key, &temp[0], defaultValue); 398 if (len < 0) { 399 return ""; 400 } 401 return std::string(&temp[0], len); 402 } 403 404 /* 405 * Read the persistent locale. Inspects the following system properties 406 * (in order) and returns the first non-empty property in the list : 407 * 408 * (1) persist.sys.locale 409 * (2) persist.sys.language/country/localevar (country and localevar are 410 * inspected iff. language is non-empty. 411 * (3) ro.product.locale 412 * (4) ro.product.locale.language/region 413 * 414 * Note that we need to inspect persist.sys.language/country/localevar to 415 * preserve language settings for devices that are upgrading from Lollipop 416 * to M. The same goes for ro.product.locale.language/region as well. 417 */ 418 const std::string readLocale() 419 { 420 const std::string locale = getProperty("persist.sys.locale", ""); 421 if (!locale.empty()) { 422 return locale; 423 } 424 425 const std::string language = getProperty("persist.sys.language", ""); 426 if (!language.empty()) { 427 const std::string country = getProperty("persist.sys.country", ""); 428 const std::string variant = getProperty("persist.sys.localevar", ""); 429 430 std::string out = language; 431 if (!country.empty()) { 432 out = out + "-" + country; 433 } 434 435 if (!variant.empty()) { 436 out = out + "-" + variant; 437 } 438 439 return out; 440 } 441 442 const std::string productLocale = getProperty("ro.product.locale", ""); 443 if (!productLocale.empty()) { 444 return productLocale; 445 } 446 447 // If persist.sys.locale and ro.product.locale are missing, 448 // construct a locale value from the individual locale components. 449 const std::string productLanguage = getProperty("ro.product.locale.language", "en"); 450 const std::string productRegion = getProperty("ro.product.locale.region", "US"); 451 452 return productLanguage + "-" + productRegion; 453 } 454 455 void AndroidRuntime::addOption(const char* optionString, void* extraInfo) 456 { 457 JavaVMOption opt; 458 opt.optionString = optionString; 459 opt.extraInfo = extraInfo; 460 mOptions.add(opt); 461 } 462 463 /* 464 * Parse a property containing space-separated options that should be 465 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap". 466 * 467 * This will cut up "extraOptsBuf" as we chop it into individual options. 468 * 469 * If "quotingArg" is non-null, it is passed before each extra option in mOptions. 470 * 471 * Adds the strings, if any, to mOptions. 472 */ 473 void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg) 474 { 475 char* start = extraOptsBuf; 476 char* end = NULL; 477 while (*start != '\0') { 478 while (*start == ' ') /* skip leading whitespace */ 479 start++; 480 if (*start == '\0') /* was trailing ws, bail */ 481 break; 482 483 end = start+1; 484 while (*end != ' ' && *end != '\0') /* find end of token */ 485 end++; 486 if (*end == ' ') 487 *end++ = '\0'; /* mark end, advance to indicate more */ 488 489 if (quotingArg != NULL) { 490 addOption(quotingArg); 491 } 492 addOption(start); 493 start = end; 494 } 495 } 496 497 /* 498 * Reads a "property" into "buffer" with a default of "defaultArg". If 499 * the property is non-empty, it is treated as a runtime option such 500 * as "-Xmx32m". 501 * 502 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 503 * 504 * If an argument is found, it is added to mOptions. 505 * 506 * If an option is found, it is added to mOptions and true is 507 * returned. Otherwise false is returned. 508 */ 509 bool AndroidRuntime::parseRuntimeOption(const char* property, 510 char* buffer, 511 const char* runtimeArg, 512 const char* defaultArg) 513 { 514 strcpy(buffer, runtimeArg); 515 size_t runtimeArgLen = strlen(runtimeArg); 516 property_get(property, buffer+runtimeArgLen, defaultArg); 517 if (buffer[runtimeArgLen] == '\0') { 518 return false; 519 } 520 addOption(buffer); 521 return true; 522 } 523 524 /* 525 * Reads a "property" into "buffer". If the property is non-empty, it 526 * is treated as a dex2oat compiler option that should be 527 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified". 528 * 529 * The "compilerArg" is a prefix for the option such as "--compiler-filter=". 530 * 531 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 532 * 533 * If an option is found, it is added to mOptions and true is 534 * returned. Otherwise false is returned. 535 */ 536 bool AndroidRuntime::parseCompilerOption(const char* property, 537 char* buffer, 538 const char* compilerArg, 539 const char* quotingArg) 540 { 541 strcpy(buffer, compilerArg); 542 size_t compilerArgLen = strlen(compilerArg); 543 property_get(property, buffer+compilerArgLen, ""); 544 if (buffer[compilerArgLen] == '\0') { 545 return false; 546 } 547 addOption(quotingArg); 548 addOption(buffer); 549 return true; 550 } 551 552 /* 553 * Reads a "property" into "buffer". If the property is non-empty, it 554 * is treated as a dex2oat compiler runtime option that should be 555 * passed as a quoted option, e.g. "-Ximage-compiler-option 556 * --runtime-arg -Ximage-compiler-option -Xmx32m". 557 * 558 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 559 * 560 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 561 * 562 * If an option is found, it is added to mOptions and true is 563 * returned. Otherwise false is returned. 564 */ 565 bool AndroidRuntime::parseCompilerRuntimeOption(const char* property, 566 char* buffer, 567 const char* runtimeArg, 568 const char* quotingArg) 569 { 570 strcpy(buffer, runtimeArg); 571 size_t runtimeArgLen = strlen(runtimeArg); 572 property_get(property, buffer+runtimeArgLen, ""); 573 if (buffer[runtimeArgLen] == '\0') { 574 return false; 575 } 576 addOption(quotingArg); 577 addOption("--runtime-arg"); 578 addOption(quotingArg); 579 addOption(buffer); 580 return true; 581 } 582 583 /* 584 * Start the Dalvik Virtual Machine. 585 * 586 * Various arguments, most determined by system properties, are passed in. 587 * The "mOptions" vector is updated. 588 * 589 * CAUTION: when adding options in here, be careful not to put the 590 * char buffer inside a nested scope. Adding the buffer to the 591 * options using mOptions.add() does not copy the buffer, so if the 592 * buffer goes out of scope the option may be overwritten. It's best 593 * to put the buffer at the top of the function so that it is more 594 * unlikely that someone will surround it in a scope at a later time 595 * and thus introduce a bug. 596 * 597 * Returns 0 on success. 598 */ 599 int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote) 600 { 601 JavaVMInitArgs initArgs; 602 char propBuf[PROPERTY_VALUE_MAX]; 603 char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX]; 604 char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX]; 605 char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 606 char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 607 char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX]; 608 char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX]; 609 char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX]; 610 char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX]; 611 char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX]; 612 char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX]; 613 char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX]; 614 char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX]; 615 char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX]; 616 char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX]; 617 char hotstartupsamplesOptsBuf[sizeof("-Xps-hot-startup-method-samples:")-1 + PROPERTY_VALUE_MAX]; 618 char madviseRandomOptsBuf[sizeof("-XX:MadviseRandomAccess:")-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 foregroundHeapGrowthMultiplierOptsBuf[ 623 sizeof("-XX:ForegroundHeapGrowthMultiplier=")-1 + PROPERTY_VALUE_MAX]; 624 char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX]; 625 char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 626 char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 627 char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 628 char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 629 char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 630 char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 631 char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 632 char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 633 char dex2oat_isa_variant_key[PROPERTY_KEY_MAX]; 634 char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX]; 635 char dex2oat_isa_features_key[PROPERTY_KEY_MAX]; 636 char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX]; 637 char dex2oatFlagsBuf[PROPERTY_VALUE_MAX]; 638 char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX]; 639 char extraOptsBuf[PROPERTY_VALUE_MAX]; 640 char voldDecryptBuf[PROPERTY_VALUE_MAX]; 641 enum { 642 kEMDefault, 643 kEMIntPortable, 644 kEMIntFast, 645 kEMJitCompiler, 646 } executionMode = kEMDefault; 647 char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX]; 648 char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX]; 649 char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX]; 650 char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX]; 651 char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX]; 652 char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX]; 653 char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX]; 654 655 bool checkJni = false; 656 property_get("dalvik.vm.checkjni", propBuf, ""); 657 if (strcmp(propBuf, "true") == 0) { 658 checkJni = true; 659 } else if (strcmp(propBuf, "false") != 0) { 660 /* property is neither true nor false; fall back on kernel parameter */ 661 property_get("ro.kernel.android.checkjni", propBuf, ""); 662 if (propBuf[0] == '1') { 663 checkJni = true; 664 } 665 } 666 ALOGV("CheckJNI is %s\n", checkJni ? "ON" : "OFF"); 667 if (checkJni) { 668 /* extended JNI checking */ 669 addOption("-Xcheck:jni"); 670 671 /* with -Xcheck:jni, this provides a JNI function call trace */ 672 //addOption("-verbose:jni"); 673 } 674 675 property_get("dalvik.vm.execution-mode", propBuf, ""); 676 if (strcmp(propBuf, "int:portable") == 0) { 677 executionMode = kEMIntPortable; 678 } else if (strcmp(propBuf, "int:fast") == 0) { 679 executionMode = kEMIntFast; 680 } else if (strcmp(propBuf, "int:jit") == 0) { 681 executionMode = kEMJitCompiler; 682 } 683 684 // If dalvik.vm.stack-trace-dir is set, it enables the "new" stack trace 685 // dump scheme and a new file is created for each stack dump. If it isn't set, 686 // the old scheme is enabled. 687 property_get("dalvik.vm.stack-trace-dir", propBuf, ""); 688 if (strlen(propBuf) > 0) { 689 addOption("-Xusetombstonedtraces"); 690 } else { 691 parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:"); 692 } 693 694 strcpy(jniOptsBuf, "-Xjniopts:"); 695 if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) { 696 ALOGI("JNI options: '%s'\n", jniOptsBuf); 697 } 698 699 /* route exit() to our handler */ 700 addOption("exit", (void*) runtime_exit); 701 702 /* route fprintf() to our handler */ 703 addOption("vfprintf", (void*) runtime_vfprintf); 704 705 /* register the framework-specific "is sensitive thread" hook */ 706 addOption("sensitiveThread", (void*) runtime_isSensitiveThread); 707 708 /* enable verbose; standard options are { jni, gc, class } */ 709 //addOption("-verbose:jni"); 710 addOption("-verbose:gc"); 711 //addOption("-verbose:class"); 712 713 /* 714 * The default starting and maximum size of the heap. Larger 715 * values should be specified in a product property override. 716 */ 717 parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m"); 718 parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m"); 719 720 parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit="); 721 parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree="); 722 parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree="); 723 parseRuntimeOption("dalvik.vm.heaptargetutilization", 724 heaptargetutilizationOptsBuf, 725 "-XX:HeapTargetUtilization="); 726 727 /* Foreground heap growth multiplier option */ 728 parseRuntimeOption("dalvik.vm.foreground-heap-growth-multiplier", 729 foregroundHeapGrowthMultiplierOptsBuf, 730 "-XX:ForegroundHeapGrowthMultiplier="); 731 732 /* 733 * JIT related options. 734 */ 735 parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:"); 736 parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:"); 737 parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:"); 738 parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:"); 739 property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, ""); 740 if (strcmp(useJitProfilesOptsBuf, "true") == 0) { 741 addOption("-Xjitsaveprofilinginfo"); 742 } 743 744 parseRuntimeOption("dalvik.vm.jitprithreadweight", 745 jitprithreadweightOptBuf, 746 "-Xjitprithreadweight:"); 747 748 parseRuntimeOption("dalvik.vm.jittransitionweight", 749 jittransitionweightOptBuf, 750 "-Xjittransitionweight:"); 751 752 /* 753 * Madvise related options. 754 */ 755 parseRuntimeOption("dalvik.vm.madvise-random", madviseRandomOptsBuf, "-XX:MadviseRandomAccess:"); 756 757 /* 758 * Profile related options. 759 */ 760 parseRuntimeOption("dalvik.vm.hot-startup-method-samples", hotstartupsamplesOptsBuf, 761 "-Xps-hot-startup-method-samples:"); 762 763 property_get("ro.config.low_ram", propBuf, ""); 764 if (strcmp(propBuf, "true") == 0) { 765 addOption("-XX:LowMemoryMode"); 766 } 767 768 parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:"); 769 parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC="); 770 771 /* 772 * Enable debugging only for apps forked from zygote. 773 * Set suspend=y to pause during VM init and use android ADB transport. 774 */ 775 if (zygote) { 776 addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y"); 777 } 778 779 parseRuntimeOption("dalvik.vm.lockprof.threshold", 780 lockProfThresholdBuf, 781 "-Xlockprofthreshold:"); 782 783 if (executionMode == kEMIntPortable) { 784 addOption("-Xint:portable"); 785 } else if (executionMode == kEMIntFast) { 786 addOption("-Xint:fast"); 787 } else if (executionMode == kEMJitCompiler) { 788 addOption("-Xint:jit"); 789 } 790 791 // If we are booting without the real /data, don't spend time compiling. 792 property_get("vold.decrypt", voldDecryptBuf, ""); 793 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || 794 (strcmp(voldDecryptBuf, "1") == 0)); 795 796 // Extra options for boot.art/boot.oat image generation. 797 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, 798 "-Xms", "-Ximage-compiler-option"); 799 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, 800 "-Xmx", "-Ximage-compiler-option"); 801 if (skip_compilation) { 802 addOption("-Ximage-compiler-option"); 803 addOption("--compiler-filter=assume-verified"); 804 } else { 805 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, 806 "--compiler-filter=", "-Ximage-compiler-option"); 807 } 808 809 // If there is a boot profile, it takes precedence over the image and preloaded classes. 810 if (hasFile("/system/etc/boot-image.prof")) { 811 addOption("-Ximage-compiler-option"); 812 addOption("--profile-file=/system/etc/boot-image.prof"); 813 addOption("-Ximage-compiler-option"); 814 addOption("--compiler-filter=speed-profile"); 815 } else { 816 // Make sure there is a preloaded-classes file. 817 if (!hasFile("/system/etc/preloaded-classes")) { 818 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n", 819 strerror(errno)); 820 return -1; 821 } 822 addOption("-Ximage-compiler-option"); 823 addOption("--image-classes=/system/etc/preloaded-classes"); 824 825 // If there is a compiled-classes file, push it. 826 if (hasFile("/system/etc/compiled-classes")) { 827 addOption("-Ximage-compiler-option"); 828 addOption("--compiled-classes=/system/etc/compiled-classes"); 829 } 830 831 // If there is a dirty-image-objects file, push it. 832 if (hasFile("/system/etc/dirty-image-objects")) { 833 addOption("-Ximage-compiler-option"); 834 addOption("--dirty-image-objects=/system/etc/dirty-image-objects"); 835 } 836 } 837 838 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); 839 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); 840 841 // Extra options for DexClassLoader. 842 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, 843 "-Xms", "-Xcompiler-option"); 844 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, 845 "-Xmx", "-Xcompiler-option"); 846 if (skip_compilation) { 847 addOption("-Xcompiler-option"); 848 addOption("--compiler-filter=assume-verified"); 849 850 // We skip compilation when a minimal runtime is brought up for decryption. In that case 851 // /data is temporarily backed by a tmpfs, which is usually small. 852 // If the system image contains prebuilts, they will be relocated into the tmpfs. In this 853 // specific situation it is acceptable to *not* relocate and run out of the prebuilts 854 // directly instead. 855 addOption("--runtime-arg"); 856 addOption("-Xnorelocate"); 857 } else { 858 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, 859 "--compiler-filter=", "-Xcompiler-option"); 860 } 861 parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option"); 862 parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j", 863 "-Ximage-compiler-option"); 864 865 // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to 866 // pass the instruction-set-features/variant as an image-compiler-option. 867 // TODO: Find a better way for the instruction-set. 868 #if defined(__arm__) 869 constexpr const char* instruction_set = "arm"; 870 #elif defined(__aarch64__) 871 constexpr const char* instruction_set = "arm64"; 872 #elif defined(__mips__) && !defined(__LP64__) 873 constexpr const char* instruction_set = "mips"; 874 #elif defined(__mips__) && defined(__LP64__) 875 constexpr const char* instruction_set = "mips64"; 876 #elif defined(__i386__) 877 constexpr const char* instruction_set = "x86"; 878 #elif defined(__x86_64__) 879 constexpr const char* instruction_set = "x86_64"; 880 #else 881 constexpr const char* instruction_set = "unknown"; 882 #endif 883 // Note: it is OK to reuse the buffer, as the values are exactly the same between 884 // * compiler-option, used for runtime compilation (DexClassLoader) 885 // * image-compiler-option, used for boot-image compilation on device 886 887 // Copy the variant. 888 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set); 889 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 890 "--instruction-set-variant=", "-Ximage-compiler-option"); 891 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 892 "--instruction-set-variant=", "-Xcompiler-option"); 893 // Copy the features. 894 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set); 895 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 896 "--instruction-set-features=", "-Ximage-compiler-option"); 897 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 898 "--instruction-set-features=", "-Xcompiler-option"); 899 900 901 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); 902 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); 903 904 /* extra options; parse this late so it overrides others */ 905 property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); 906 parseExtraOpts(extraOptsBuf, NULL); 907 908 /* Set the properties for locale */ 909 { 910 strcpy(localeOption, "-Duser.locale="); 911 const std::string locale = readLocale(); 912 strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX); 913 addOption(localeOption); 914 } 915 916 // Trace files are stored in /data/misc/trace which is writable only in debug mode. 917 property_get("ro.debuggable", propBuf, "0"); 918 if (strcmp(propBuf, "1") == 0) { 919 property_get("dalvik.vm.method-trace", propBuf, "false"); 920 if (strcmp(propBuf, "true") == 0) { 921 addOption("-Xmethod-trace"); 922 parseRuntimeOption("dalvik.vm.method-trace-file", 923 methodTraceFileBuf, 924 "-Xmethod-trace-file:"); 925 parseRuntimeOption("dalvik.vm.method-trace-file-siz", 926 methodTraceFileSizeBuf, 927 "-Xmethod-trace-file-size:"); 928 property_get("dalvik.vm.method-trace-stream", propBuf, "false"); 929 if (strcmp(propBuf, "true") == 0) { 930 addOption("-Xmethod-trace-stream"); 931 } 932 } 933 } 934 935 // Native bridge library. "0" means that native bridge is disabled. 936 property_get("ro.dalvik.vm.native.bridge", propBuf, ""); 937 if (propBuf[0] == '\0') { 938 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); 939 } else if (strcmp(propBuf, "0") != 0) { 940 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, 941 "-XX:NativeBridge=%s", propBuf); 942 addOption(nativeBridgeLibrary); 943 } 944 945 #if defined(__LP64__) 946 const char* cpu_abilist_property_name = "ro.product.cpu.abilist64"; 947 #else 948 const char* cpu_abilist_property_name = "ro.product.cpu.abilist32"; 949 #endif // defined(__LP64__) 950 property_get(cpu_abilist_property_name, propBuf, ""); 951 if (propBuf[0] == '\0') { 952 ALOGE("%s is not expected to be empty", cpu_abilist_property_name); 953 return -1; 954 } 955 snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf); 956 addOption(cpuAbiListBuf); 957 958 // Dalvik-cache pruning counter. 959 parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf, 960 "-Xzygote-max-boot-retry="); 961 962 /* 963 * When running with debug.generate-debug-info, add --generate-debug-info to 964 * the compiler options so that the boot image, if it is compiled on device, 965 * will include native debugging information. 966 */ 967 property_get("debug.generate-debug-info", propBuf, ""); 968 if (strcmp(propBuf, "true") == 0) { 969 addOption("-Xcompiler-option"); 970 addOption("--generate-debug-info"); 971 addOption("-Ximage-compiler-option"); 972 addOption("--generate-debug-info"); 973 } 974 975 /* 976 * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will 977 * contain the fingerprint and can be parsed. 978 */ 979 parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:"); 980 981 initArgs.version = JNI_VERSION_1_4; 982 initArgs.options = mOptions.editArray(); 983 initArgs.nOptions = mOptions.size(); 984 initArgs.ignoreUnrecognized = JNI_FALSE; 985 986 /* 987 * Initialize the VM. 988 * 989 * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. 990 * If this call succeeds, the VM is ready, and we can start issuing 991 * JNI calls. 992 */ 993 if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { 994 ALOGE("JNI_CreateJavaVM failed\n"); 995 return -1; 996 } 997 998 return 0; 999 } 1000 1001 char* AndroidRuntime::toSlashClassName(const char* className) 1002 { 1003 char* result = strdup(className); 1004 for (char* cp = result; *cp != '\0'; cp++) { 1005 if (*cp == '.') { 1006 *cp = '/'; 1007 } 1008 } 1009 return result; 1010 } 1011 1012 /** Create a Java string from an ASCII or Latin-1 string */ 1013 jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { 1014 if (!bytes) return NULL; 1015 int length = strlen(bytes); 1016 jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); 1017 if (!buffer) return NULL; 1018 jchar* chp = buffer; 1019 for (int i = 0; i < length; i++) { 1020 *chp++ = *bytes++; 1021 } 1022 return env->NewString(buffer, length); 1023 } 1024 1025 1026 /* 1027 * Start the Android runtime. This involves starting the virtual machine 1028 * and calling the "static void main(String[] args)" method in the class 1029 * named by "className". 1030 * 1031 * Passes the main function two arguments, the class name and the specified 1032 * options string. 1033 */ 1034 void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote) 1035 { 1036 ALOGD(">>>>>> START %s uid %d <<<<<<\n", 1037 className != NULL ? className : "(unknown)", getuid()); 1038 1039 static const String8 startSystemServer("start-system-server"); 1040 1041 /* 1042 * 'startSystemServer == true' means runtime is obsolete and not run from 1043 * init.rc anymore, so we print out the boot start event here. 1044 */ 1045 for (size_t i = 0; i < options.size(); ++i) { 1046 if (options[i] == startSystemServer) { 1047 /* track our progress through the boot sequence */ 1048 const int LOG_BOOT_PROGRESS_START = 3000; 1049 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); 1050 } 1051 } 1052 1053 const char* rootDir = getenv("ANDROID_ROOT"); 1054 if (rootDir == NULL) { 1055 rootDir = "/system"; 1056 if (!hasDir("/system")) { 1057 LOG_FATAL("No root directory specified, and /android does not exist."); 1058 return; 1059 } 1060 setenv("ANDROID_ROOT", rootDir, 1); 1061 } 1062 1063 //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); 1064 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); 1065 1066 /* start the virtual machine */ 1067 JniInvocation jni_invocation; 1068 jni_invocation.Init(NULL); 1069 JNIEnv* env; 1070 if (startVm(&mJavaVM, &env, zygote) != 0) { 1071 return; 1072 } 1073 onVmCreated(env); 1074 1075 /* 1076 * Register android functions. 1077 */ 1078 if (startReg(env) < 0) { 1079 ALOGE("Unable to register all android natives\n"); 1080 return; 1081 } 1082 1083 /* 1084 * We want to call main() with a String array with arguments in it. 1085 * At present we have two arguments, the class name and an option string. 1086 * Create an array to hold them. 1087 */ 1088 jclass stringClass; 1089 jobjectArray strArray; 1090 jstring classNameStr; 1091 1092 stringClass = env->FindClass("java/lang/String"); 1093 assert(stringClass != NULL); 1094 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); 1095 assert(strArray != NULL); 1096 classNameStr = env->NewStringUTF(className); 1097 assert(classNameStr != NULL); 1098 env->SetObjectArrayElement(strArray, 0, classNameStr); 1099 1100 for (size_t i = 0; i < options.size(); ++i) { 1101 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); 1102 assert(optionsStr != NULL); 1103 env->SetObjectArrayElement(strArray, i + 1, optionsStr); 1104 } 1105 1106 /* 1107 * Start VM. This thread becomes the main thread of the VM, and will 1108 * not return until the VM exits. 1109 */ 1110 char* slashClassName = toSlashClassName(className != NULL ? className : ""); 1111 jclass startClass = env->FindClass(slashClassName); 1112 if (startClass == NULL) { 1113 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); 1114 /* keep going */ 1115 } else { 1116 jmethodID startMeth = env->GetStaticMethodID(startClass, "main", 1117 "([Ljava/lang/String;)V"); 1118 if (startMeth == NULL) { 1119 ALOGE("JavaVM unable to find main() in '%s'\n", className); 1120 /* keep going */ 1121 } else { 1122 env->CallStaticVoidMethod(startClass, startMeth, strArray); 1123 1124 #if 0 1125 if (env->ExceptionCheck()) 1126 threadExitUncaughtException(env); 1127 #endif 1128 } 1129 } 1130 free(slashClassName); 1131 1132 ALOGD("Shutting down VM\n"); 1133 if (mJavaVM->DetachCurrentThread() != JNI_OK) 1134 ALOGW("Warning: unable to detach main thread\n"); 1135 if (mJavaVM->DestroyJavaVM() != 0) 1136 ALOGW("Warning: VM did not shut down cleanly\n"); 1137 } 1138 1139 void AndroidRuntime::exit(int code) 1140 { 1141 if (mExitWithoutCleanup) { 1142 ALOGI("VM exiting with result code %d, cleanup skipped.", code); 1143 ::_exit(code); 1144 } else { 1145 ALOGI("VM exiting with result code %d.", code); 1146 onExit(code); 1147 ::exit(code); 1148 } 1149 } 1150 1151 void AndroidRuntime::onVmCreated(JNIEnv* env) 1152 { 1153 // If AndroidRuntime had anything to do here, we'd have done it in 'start'. 1154 } 1155 1156 /* 1157 * Get the JNIEnv pointer for this thread. 1158 * 1159 * Returns NULL if the slot wasn't allocated or populated. 1160 */ 1161 /*static*/ JNIEnv* AndroidRuntime::getJNIEnv() 1162 { 1163 JNIEnv* env; 1164 JavaVM* vm = AndroidRuntime::getJavaVM(); 1165 assert(vm != NULL); 1166 1167 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) 1168 return NULL; 1169 return env; 1170 } 1171 1172 /* 1173 * Makes the current thread visible to the VM. 1174 * 1175 * The JNIEnv pointer returned is only valid for the current thread, and 1176 * thus must be tucked into thread-local storage. 1177 */ 1178 static int javaAttachThread(const char* threadName, JNIEnv** pEnv) 1179 { 1180 JavaVMAttachArgs args; 1181 JavaVM* vm; 1182 jint result; 1183 1184 vm = AndroidRuntime::getJavaVM(); 1185 assert(vm != NULL); 1186 1187 args.version = JNI_VERSION_1_4; 1188 args.name = (char*) threadName; 1189 args.group = NULL; 1190 1191 result = vm->AttachCurrentThread(pEnv, (void*) &args); 1192 if (result != JNI_OK) 1193 ALOGI("NOTE: attach of thread '%s' failed\n", threadName); 1194 1195 return result; 1196 } 1197 1198 /* 1199 * Detach the current thread from the set visible to the VM. 1200 */ 1201 static int javaDetachThread(void) 1202 { 1203 JavaVM* vm; 1204 jint result; 1205 1206 vm = AndroidRuntime::getJavaVM(); 1207 assert(vm != NULL); 1208 1209 result = vm->DetachCurrentThread(); 1210 if (result != JNI_OK) 1211 ALOGE("ERROR: thread detach failed\n"); 1212 return result; 1213 } 1214 1215 /* 1216 * When starting a native thread that will be visible from the VM, we 1217 * bounce through this to get the right attach/detach action. 1218 * Note that this function calls free(args) 1219 */ 1220 /*static*/ int AndroidRuntime::javaThreadShell(void* args) { 1221 void* start = ((void**)args)[0]; 1222 void* userData = ((void **)args)[1]; 1223 char* name = (char*) ((void **)args)[2]; // we own this storage 1224 free(args); 1225 JNIEnv* env; 1226 int result; 1227 1228 /* hook us into the VM */ 1229 if (javaAttachThread(name, &env) != JNI_OK) 1230 return -1; 1231 1232 /* start the thread running */ 1233 result = (*(android_thread_func_t)start)(userData); 1234 1235 /* unhook us */ 1236 javaDetachThread(); 1237 free(name); 1238 1239 return result; 1240 } 1241 1242 /* 1243 * This is invoked from androidCreateThreadEtc() via the callback 1244 * set with androidSetCreateThreadFunc(). 1245 * 1246 * We need to create the new thread in such a way that it gets hooked 1247 * into the VM before it really starts executing. 1248 */ 1249 /*static*/ int AndroidRuntime::javaCreateThreadEtc( 1250 android_thread_func_t entryFunction, 1251 void* userData, 1252 const char* threadName, 1253 int32_t threadPriority, 1254 size_t threadStackSize, 1255 android_thread_id_t* threadId) 1256 { 1257 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free 1258 int result; 1259 1260 LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc"); 1261 1262 args[0] = (void*) entryFunction; 1263 args[1] = userData; 1264 args[2] = (void*) strdup(threadName); // javaThreadShell must free 1265 1266 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, 1267 threadName, threadPriority, threadStackSize, threadId); 1268 return result; 1269 } 1270 1271 /* 1272 * Create a thread that is visible from the VM. 1273 * 1274 * This is called from elsewhere in the library. 1275 */ 1276 /*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, 1277 void (*start)(void *), void* arg) 1278 { 1279 android_thread_id_t threadId = 0; 1280 javaCreateThreadEtc((android_thread_func_t) start, arg, name, 1281 ANDROID_PRIORITY_DEFAULT, 0, &threadId); 1282 return threadId; 1283 } 1284 1285 #if 0 1286 static void quickTest(void* arg) 1287 { 1288 const char* str = (const char*) arg; 1289 1290 printf("In quickTest: %s\n", str); 1291 } 1292 #endif 1293 1294 #ifdef NDEBUG 1295 #define REG_JNI(name) { name } 1296 struct RegJNIRec { 1297 int (*mProc)(JNIEnv*); 1298 }; 1299 #else 1300 #define REG_JNI(name) { name, #name } 1301 struct RegJNIRec { 1302 int (*mProc)(JNIEnv*); 1303 const char* mName; 1304 }; 1305 #endif 1306 1307 typedef void (*RegJAMProc)(); 1308 1309 static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) 1310 { 1311 for (size_t i = 0; i < count; i++) { 1312 if (array[i].mProc(env) < 0) { 1313 #ifndef NDEBUG 1314 ALOGD("----------!!! %s failed to load\n", array[i].mName); 1315 #endif 1316 return -1; 1317 } 1318 } 1319 return 0; 1320 } 1321 1322 static const RegJNIRec gRegJNI[] = { 1323 REG_JNI(register_com_android_internal_os_RuntimeInit), 1324 REG_JNI(register_com_android_internal_os_ZygoteInit_nativeZygoteInit), 1325 REG_JNI(register_android_os_SystemClock), 1326 REG_JNI(register_android_util_EventLog), 1327 REG_JNI(register_android_util_Log), 1328 REG_JNI(register_android_util_MemoryIntArray), 1329 REG_JNI(register_android_util_PathParser), 1330 REG_JNI(register_android_app_admin_SecurityLog), 1331 REG_JNI(register_android_content_AssetManager), 1332 REG_JNI(register_android_content_StringBlock), 1333 REG_JNI(register_android_content_XmlBlock), 1334 REG_JNI(register_android_text_AndroidCharacter), 1335 REG_JNI(register_android_text_StaticLayout), 1336 REG_JNI(register_android_text_AndroidBidi), 1337 REG_JNI(register_android_view_InputDevice), 1338 REG_JNI(register_android_view_KeyCharacterMap), 1339 REG_JNI(register_android_os_Process), 1340 REG_JNI(register_android_os_SystemProperties), 1341 REG_JNI(register_android_os_Binder), 1342 REG_JNI(register_android_os_Parcel), 1343 REG_JNI(register_android_os_HwBinder), 1344 REG_JNI(register_android_os_HwBlob), 1345 REG_JNI(register_android_os_HwParcel), 1346 REG_JNI(register_android_os_HwRemoteBinder), 1347 REG_JNI(register_android_os_VintfObject), 1348 REG_JNI(register_android_os_VintfRuntimeInfo), 1349 REG_JNI(register_android_nio_utils), 1350 REG_JNI(register_android_graphics_Canvas), 1351 REG_JNI(register_android_graphics_Graphics), 1352 REG_JNI(register_android_view_DisplayEventReceiver), 1353 REG_JNI(register_android_view_RenderNode), 1354 REG_JNI(register_android_view_RenderNodeAnimator), 1355 REG_JNI(register_android_view_DisplayListCanvas), 1356 REG_JNI(register_android_view_HardwareLayer), 1357 REG_JNI(register_android_view_ThreadedRenderer), 1358 REG_JNI(register_android_view_Surface), 1359 REG_JNI(register_android_view_SurfaceControl), 1360 REG_JNI(register_android_view_SurfaceSession), 1361 REG_JNI(register_android_view_TextureView), 1362 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), 1363 REG_JNI(register_com_google_android_gles_jni_EGLImpl), 1364 REG_JNI(register_com_google_android_gles_jni_GLImpl), 1365 REG_JNI(register_android_opengl_jni_EGL14), 1366 REG_JNI(register_android_opengl_jni_EGLExt), 1367 REG_JNI(register_android_opengl_jni_GLES10), 1368 REG_JNI(register_android_opengl_jni_GLES10Ext), 1369 REG_JNI(register_android_opengl_jni_GLES11), 1370 REG_JNI(register_android_opengl_jni_GLES11Ext), 1371 REG_JNI(register_android_opengl_jni_GLES20), 1372 REG_JNI(register_android_opengl_jni_GLES30), 1373 REG_JNI(register_android_opengl_jni_GLES31), 1374 REG_JNI(register_android_opengl_jni_GLES31Ext), 1375 REG_JNI(register_android_opengl_jni_GLES32), 1376 1377 REG_JNI(register_android_graphics_Bitmap), 1378 REG_JNI(register_android_graphics_BitmapFactory), 1379 REG_JNI(register_android_graphics_BitmapRegionDecoder), 1380 REG_JNI(register_android_graphics_Camera), 1381 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), 1382 REG_JNI(register_android_graphics_CanvasProperty), 1383 REG_JNI(register_android_graphics_ColorFilter), 1384 REG_JNI(register_android_graphics_DrawFilter), 1385 REG_JNI(register_android_graphics_FontFamily), 1386 REG_JNI(register_android_graphics_GraphicBuffer), 1387 REG_JNI(register_android_graphics_Interpolator), 1388 REG_JNI(register_android_graphics_MaskFilter), 1389 REG_JNI(register_android_graphics_Matrix), 1390 REG_JNI(register_android_graphics_Movie), 1391 REG_JNI(register_android_graphics_NinePatch), 1392 REG_JNI(register_android_graphics_Paint), 1393 REG_JNI(register_android_graphics_Path), 1394 REG_JNI(register_android_graphics_PathMeasure), 1395 REG_JNI(register_android_graphics_PathEffect), 1396 REG_JNI(register_android_graphics_Picture), 1397 REG_JNI(register_android_graphics_Region), 1398 REG_JNI(register_android_graphics_Shader), 1399 REG_JNI(register_android_graphics_SurfaceTexture), 1400 REG_JNI(register_android_graphics_Typeface), 1401 REG_JNI(register_android_graphics_YuvImage), 1402 REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable), 1403 REG_JNI(register_android_graphics_drawable_VectorDrawable), 1404 REG_JNI(register_android_graphics_pdf_PdfDocument), 1405 REG_JNI(register_android_graphics_pdf_PdfEditor), 1406 REG_JNI(register_android_graphics_pdf_PdfRenderer), 1407 1408 REG_JNI(register_android_database_CursorWindow), 1409 REG_JNI(register_android_database_SQLiteConnection), 1410 REG_JNI(register_android_database_SQLiteGlobal), 1411 REG_JNI(register_android_database_SQLiteDebug), 1412 REG_JNI(register_android_os_Debug), 1413 REG_JNI(register_android_os_FileObserver), 1414 REG_JNI(register_android_os_GraphicsEnvironment), 1415 REG_JNI(register_android_os_MessageQueue), 1416 REG_JNI(register_android_os_SELinux), 1417 REG_JNI(register_android_os_seccomp), 1418 REG_JNI(register_android_os_Trace), 1419 REG_JNI(register_android_os_UEventObserver), 1420 REG_JNI(register_android_net_LocalSocketImpl), 1421 REG_JNI(register_android_net_NetworkUtils), 1422 REG_JNI(register_android_net_TrafficStats), 1423 REG_JNI(register_android_os_MemoryFile), 1424 REG_JNI(register_android_os_SharedMemory), 1425 REG_JNI(register_com_android_internal_os_ClassLoaderFactory), 1426 REG_JNI(register_com_android_internal_os_Zygote), 1427 REG_JNI(register_com_android_internal_os_ZygoteInit), 1428 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), 1429 REG_JNI(register_android_hardware_Camera), 1430 REG_JNI(register_android_hardware_camera2_CameraMetadata), 1431 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), 1432 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), 1433 REG_JNI(register_android_hardware_camera2_DngCreator), 1434 REG_JNI(register_android_hardware_HardwareBuffer), 1435 REG_JNI(register_android_hardware_SensorManager), 1436 REG_JNI(register_android_hardware_SerialPort), 1437 REG_JNI(register_android_hardware_SoundTrigger), 1438 REG_JNI(register_android_hardware_UsbDevice), 1439 REG_JNI(register_android_hardware_UsbDeviceConnection), 1440 REG_JNI(register_android_hardware_UsbRequest), 1441 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), 1442 REG_JNI(register_android_media_AudioRecord), 1443 REG_JNI(register_android_media_AudioSystem), 1444 REG_JNI(register_android_media_AudioTrack), 1445 REG_JNI(register_android_media_JetPlayer), 1446 REG_JNI(register_android_media_RemoteDisplay), 1447 REG_JNI(register_android_media_ToneGenerator), 1448 1449 REG_JNI(register_android_opengl_classes), 1450 REG_JNI(register_android_server_NetworkManagementSocketTagger), 1451 REG_JNI(register_android_ddm_DdmHandleNativeHeap), 1452 REG_JNI(register_android_backup_BackupDataInput), 1453 REG_JNI(register_android_backup_BackupDataOutput), 1454 REG_JNI(register_android_backup_FileBackupHelperBase), 1455 REG_JNI(register_android_backup_BackupHelperDispatcher), 1456 REG_JNI(register_android_app_backup_FullBackup), 1457 REG_JNI(register_android_app_Activity), 1458 REG_JNI(register_android_app_ActivityThread), 1459 REG_JNI(register_android_app_ApplicationLoaders), 1460 REG_JNI(register_android_app_NativeActivity), 1461 REG_JNI(register_android_util_jar_StrictJarFile), 1462 REG_JNI(register_android_view_InputChannel), 1463 REG_JNI(register_android_view_InputEventReceiver), 1464 REG_JNI(register_android_view_InputEventSender), 1465 REG_JNI(register_android_view_InputQueue), 1466 REG_JNI(register_android_view_KeyEvent), 1467 REG_JNI(register_android_view_MotionEvent), 1468 REG_JNI(register_android_view_PointerIcon), 1469 REG_JNI(register_android_view_VelocityTracker), 1470 1471 REG_JNI(register_android_content_res_ObbScanner), 1472 REG_JNI(register_android_content_res_Configuration), 1473 1474 REG_JNI(register_android_animation_PropertyValuesHolder), 1475 REG_JNI(register_com_android_internal_content_NativeLibraryHelper), 1476 REG_JNI(register_com_android_internal_net_NetworkStatsFactory), 1477 REG_JNI(register_com_android_internal_os_FuseAppLoop), 1478 }; 1479 1480 /* 1481 * Register android native functions with the VM. 1482 */ 1483 /*static*/ int AndroidRuntime::startReg(JNIEnv* env) 1484 { 1485 ATRACE_NAME("RegisterAndroidNatives"); 1486 /* 1487 * This hook causes all future threads created in this process to be 1488 * attached to the JavaVM. (This needs to go away in favor of JNI 1489 * Attach calls.) 1490 */ 1491 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); 1492 1493 ALOGV("--- registering native functions ---\n"); 1494 1495 /* 1496 * Every "register" function calls one or more things that return 1497 * a local reference (e.g. FindClass). Because we haven't really 1498 * started the VM yet, they're all getting stored in the base frame 1499 * and never released. Use Push/Pop to manage the storage. 1500 */ 1501 env->PushLocalFrame(200); 1502 1503 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { 1504 env->PopLocalFrame(NULL); 1505 return -1; 1506 } 1507 env->PopLocalFrame(NULL); 1508 1509 //createJavaThread("fubar", quickTest, (void*) "hello"); 1510 1511 return 0; 1512 } 1513 1514 AndroidRuntime* AndroidRuntime::getRuntime() 1515 { 1516 return gCurRuntime; 1517 } 1518 1519 /** 1520 * Used by surface flinger's DdmConnection to register native methods from 1521 * the framework. 1522 */ 1523 extern "C" jint registerFrameworkNatives(JNIEnv* env) { 1524 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1525 } 1526 } // namespace android 1527
