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 23 #include <android-base/properties.h> 24 #include <binder/IBinder.h> 25 #include <binder/IPCThreadState.h> 26 #include <binder/IServiceManager.h> 27 #include <utils/Log.h> 28 #include <utils/misc.h> 29 #include <utils/Trace.h> 30 #include <binder/Parcel.h> 31 #include <utils/threads.h> 32 #include <cutils/properties.h> 33 34 #include <SkGraphics.h> 35 36 #include "jni.h" 37 #include <nativehelper/JNIHelp.h> 38 #include <nativehelper/JniInvocation.h> 39 #include "android_util_Binder.h" 40 41 #include <stdio.h> 42 #include <signal.h> 43 #include <sys/stat.h> 44 #include <sys/types.h> 45 #include <signal.h> 46 #include <dirent.h> 47 #include <assert.h> 48 49 #include <string> 50 #include <vector> 51 52 using namespace android; 53 using android::base::GetProperty; 54 55 extern int register_android_os_Binder(JNIEnv* env); 56 extern int register_android_os_Process(JNIEnv* env); 57 extern int register_android_graphics_Bitmap(JNIEnv*); 58 extern int register_android_graphics_BitmapFactory(JNIEnv*); 59 extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*); 60 extern int register_android_graphics_ByteBufferStreamAdaptor(JNIEnv* env); 61 extern int register_android_graphics_Camera(JNIEnv* env); 62 extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env); 63 extern int register_android_graphics_GraphicBuffer(JNIEnv* env); 64 extern int register_android_graphics_Graphics(JNIEnv* env); 65 extern int register_android_graphics_ImageDecoder(JNIEnv*); 66 extern int register_android_graphics_drawable_AnimatedImageDrawable(JNIEnv*); 67 extern int register_android_graphics_Interpolator(JNIEnv* env); 68 extern int register_android_graphics_MaskFilter(JNIEnv* env); 69 extern int register_android_graphics_Movie(JNIEnv* env); 70 extern int register_android_graphics_NinePatch(JNIEnv*); 71 extern int register_android_graphics_PathEffect(JNIEnv* env); 72 extern int register_android_graphics_Shader(JNIEnv* env); 73 extern int register_android_graphics_Typeface(JNIEnv* env); 74 extern int register_android_graphics_YuvImage(JNIEnv* env); 75 76 extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env); 77 extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env); 78 extern int register_android_opengl_jni_EGL14(JNIEnv* env); 79 extern int register_android_opengl_jni_EGLExt(JNIEnv* env); 80 extern int register_android_opengl_jni_GLES10(JNIEnv* env); 81 extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env); 82 extern int register_android_opengl_jni_GLES11(JNIEnv* env); 83 extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env); 84 extern int register_android_opengl_jni_GLES20(JNIEnv* env); 85 extern int register_android_opengl_jni_GLES30(JNIEnv* env); 86 extern int register_android_opengl_jni_GLES31(JNIEnv* env); 87 extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env); 88 extern int register_android_opengl_jni_GLES32(JNIEnv* env); 89 90 extern int register_android_hardware_Camera(JNIEnv *env); 91 extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env); 92 extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env); 93 extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env); 94 extern int register_android_hardware_camera2_DngCreator(JNIEnv *env); 95 extern int register_android_hardware_HardwareBuffer(JNIEnv *env); 96 extern int register_android_hardware_SensorManager(JNIEnv *env); 97 extern int register_android_hardware_SerialPort(JNIEnv *env); 98 extern int register_android_hardware_SoundTrigger(JNIEnv *env); 99 extern int register_android_hardware_UsbDevice(JNIEnv *env); 100 extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env); 101 extern int register_android_hardware_UsbRequest(JNIEnv *env); 102 extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env); 103 104 extern int register_android_media_AudioRecord(JNIEnv *env); 105 extern int register_android_media_AudioSystem(JNIEnv *env); 106 extern int register_android_media_AudioTrack(JNIEnv *env); 107 extern int register_android_media_MicrophoneInfo(JNIEnv *env); 108 extern int register_android_media_JetPlayer(JNIEnv *env); 109 extern int register_android_media_ToneGenerator(JNIEnv *env); 110 111 namespace android { 112 113 /* 114 * JNI-based registration functions. Note these are properly contained in 115 * namespace android. 116 */ 117 extern int register_android_app_admin_SecurityLog(JNIEnv* env); 118 extern int register_android_content_AssetManager(JNIEnv* env); 119 extern int register_android_util_EventLog(JNIEnv* env); 120 extern int register_android_util_StatsLog(JNIEnv* env); 121 extern int register_android_util_Log(JNIEnv* env); 122 extern int register_android_util_MemoryIntArray(JNIEnv* env); 123 extern int register_android_util_PathParser(JNIEnv* env); 124 extern int register_android_content_StringBlock(JNIEnv* env); 125 extern int register_android_content_XmlBlock(JNIEnv* env); 126 extern int register_android_content_res_ApkAssets(JNIEnv* env); 127 extern int register_android_graphics_Canvas(JNIEnv* env); 128 extern int register_android_graphics_CanvasProperty(JNIEnv* env); 129 extern int register_android_graphics_ColorFilter(JNIEnv* env); 130 extern int register_android_graphics_DrawFilter(JNIEnv* env); 131 extern int register_android_graphics_FontFamily(JNIEnv* env); 132 extern int register_android_graphics_Matrix(JNIEnv* env); 133 extern int register_android_graphics_Paint(JNIEnv* env); 134 extern int register_android_graphics_Path(JNIEnv* env); 135 extern int register_android_graphics_PathMeasure(JNIEnv* env); 136 extern int register_android_graphics_Picture(JNIEnv*); 137 extern int register_android_graphics_Region(JNIEnv* env); 138 extern int register_android_graphics_SurfaceTexture(JNIEnv* env); 139 extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env); 140 extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env); 141 extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env); 142 extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env); 143 extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env); 144 extern int register_android_view_DisplayEventReceiver(JNIEnv* env); 145 extern int register_android_view_DisplayListCanvas(JNIEnv* env); 146 extern int register_android_view_TextureLayer(JNIEnv* env); 147 extern int register_android_view_RenderNode(JNIEnv* env); 148 extern int register_android_view_RenderNodeAnimator(JNIEnv* env); 149 extern int register_android_view_Surface(JNIEnv* env); 150 extern int register_android_view_SurfaceControl(JNIEnv* env); 151 extern int register_android_view_SurfaceSession(JNIEnv* env); 152 extern int register_android_view_TextureView(JNIEnv* env); 153 extern int register_android_view_ThreadedRenderer(JNIEnv* env); 154 extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env); 155 extern int register_android_database_CursorWindow(JNIEnv* env); 156 extern int register_android_database_SQLiteConnection(JNIEnv* env); 157 extern int register_android_database_SQLiteGlobal(JNIEnv* env); 158 extern int register_android_database_SQLiteDebug(JNIEnv* env); 159 extern int register_android_nio_utils(JNIEnv* env); 160 extern int register_android_os_Debug(JNIEnv* env); 161 extern int register_android_os_GraphicsEnvironment(JNIEnv* env); 162 extern int register_android_os_HidlSupport(JNIEnv* env); 163 extern int register_android_os_HwBinder(JNIEnv *env); 164 extern int register_android_os_HwBlob(JNIEnv *env); 165 extern int register_android_os_HwParcel(JNIEnv *env); 166 extern int register_android_os_HwRemoteBinder(JNIEnv *env); 167 extern int register_android_os_MessageQueue(JNIEnv* env); 168 extern int register_android_os_Parcel(JNIEnv* env); 169 extern int register_android_os_SELinux(JNIEnv* env); 170 extern int register_android_os_VintfObject(JNIEnv *env); 171 extern int register_android_os_VintfRuntimeInfo(JNIEnv *env); 172 extern int register_android_os_SystemProperties(JNIEnv *env); 173 extern int register_android_os_SystemClock(JNIEnv* env); 174 extern int register_android_os_Trace(JNIEnv* env); 175 extern int register_android_os_FileObserver(JNIEnv *env); 176 extern int register_android_os_UEventObserver(JNIEnv* env); 177 extern int register_android_os_MemoryFile(JNIEnv* env); 178 extern int register_android_os_SharedMemory(JNIEnv* env); 179 extern int register_android_net_LocalSocketImpl(JNIEnv* env); 180 extern int register_android_net_NetworkUtils(JNIEnv* env); 181 extern int register_android_text_AndroidCharacter(JNIEnv *env); 182 extern int register_android_text_Hyphenator(JNIEnv *env); 183 extern int register_android_text_MeasuredParagraph(JNIEnv* env); 184 extern int register_android_text_StaticLayout(JNIEnv *env); 185 extern int register_android_opengl_classes(JNIEnv *env); 186 extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env); 187 extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env); 188 extern int register_android_backup_BackupDataInput(JNIEnv *env); 189 extern int register_android_backup_BackupDataOutput(JNIEnv *env); 190 extern int register_android_backup_FileBackupHelperBase(JNIEnv *env); 191 extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env); 192 extern int register_android_app_backup_FullBackup(JNIEnv *env); 193 extern int register_android_app_Activity(JNIEnv *env); 194 extern int register_android_app_ActivityThread(JNIEnv *env); 195 extern int register_android_app_NativeActivity(JNIEnv *env); 196 extern int register_android_media_RemoteDisplay(JNIEnv *env); 197 extern int register_android_util_jar_StrictJarFile(JNIEnv* env); 198 extern int register_android_view_InputChannel(JNIEnv* env); 199 extern int register_android_view_InputDevice(JNIEnv* env); 200 extern int register_android_view_InputEventReceiver(JNIEnv* env); 201 extern int register_android_view_InputEventSender(JNIEnv* env); 202 extern int register_android_view_InputQueue(JNIEnv* env); 203 extern int register_android_view_KeyCharacterMap(JNIEnv *env); 204 extern int register_android_view_KeyEvent(JNIEnv* env); 205 extern int register_android_view_MotionEvent(JNIEnv* env); 206 extern int register_android_view_PointerIcon(JNIEnv* env); 207 extern int register_android_view_VelocityTracker(JNIEnv* env); 208 extern int register_android_content_res_ObbScanner(JNIEnv* env); 209 extern int register_android_content_res_Configuration(JNIEnv* env); 210 extern int register_android_animation_PropertyValuesHolder(JNIEnv *env); 211 extern int register_android_security_Scrypt(JNIEnv *env); 212 extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env); 213 extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env); 214 extern int register_com_android_internal_os_ClassLoaderFactory(JNIEnv* env); 215 extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env); 216 extern int register_com_android_internal_os_Zygote(JNIEnv *env); 217 extern int register_com_android_internal_os_ZygoteInit(JNIEnv *env); 218 extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env); 219 220 static AndroidRuntime* gCurRuntime = NULL; 221 222 /* 223 * Code written in the Java Programming Language calls here from main(). 224 */ 225 static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz) 226 { 227 gCurRuntime->onStarted(); 228 } 229 230 static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz) 231 { 232 gCurRuntime->onZygoteInit(); 233 } 234 235 static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env, 236 jobject clazz, jboolean exitWithoutCleanup) 237 { 238 gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup); 239 } 240 241 /* 242 * JNI registration. 243 */ 244 245 int register_com_android_internal_os_RuntimeInit(JNIEnv* env) 246 { 247 const JNINativeMethod methods[] = { 248 { "nativeFinishInit", "()V", 249 (void*) com_android_internal_os_RuntimeInit_nativeFinishInit }, 250 { "nativeSetExitWithoutCleanup", "(Z)V", 251 (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup }, 252 }; 253 return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit", 254 methods, NELEM(methods)); 255 } 256 257 int register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env) 258 { 259 const JNINativeMethod methods[] = { 260 { "nativeZygoteInit", "()V", 261 (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit }, 262 }; 263 return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit", 264 methods, NELEM(methods)); 265 } 266 267 // ---------------------------------------------------------------------- 268 269 /*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL; 270 271 AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) : 272 mExitWithoutCleanup(false), 273 mArgBlockStart(argBlockStart), 274 mArgBlockLength(argBlockLength) 275 { 276 SkGraphics::Init(); 277 278 // Pre-allocate enough space to hold a fair number of options. 279 mOptions.setCapacity(20); 280 281 assert(gCurRuntime == NULL); // one per process 282 gCurRuntime = this; 283 } 284 285 AndroidRuntime::~AndroidRuntime() 286 { 287 } 288 289 /* 290 * Register native methods using JNI. 291 */ 292 /*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env, 293 const char* className, const JNINativeMethod* gMethods, int numMethods) 294 { 295 return jniRegisterNativeMethods(env, className, gMethods, numMethods); 296 } 297 298 void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) { 299 if (setProcName) { 300 int len = strlen(argv0); 301 if (len < 15) { 302 pthread_setname_np(pthread_self(), argv0); 303 } else { 304 pthread_setname_np(pthread_self(), argv0 + len - 15); 305 } 306 } 307 memset(mArgBlockStart, 0, mArgBlockLength); 308 strlcpy(mArgBlockStart, argv0, mArgBlockLength); 309 } 310 311 status_t AndroidRuntime::callMain(const String8& className, jclass clazz, 312 const Vector<String8>& args) 313 { 314 JNIEnv* env; 315 jmethodID methodId; 316 317 ALOGD("Calling main entry %s", className.string()); 318 319 env = getJNIEnv(); 320 if (clazz == NULL || env == NULL) { 321 return UNKNOWN_ERROR; 322 } 323 324 methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V"); 325 if (methodId == NULL) { 326 ALOGE("ERROR: could not find method %s.main(String[])\n", className.string()); 327 return UNKNOWN_ERROR; 328 } 329 330 /* 331 * We want to call main() with a String array with our arguments in it. 332 * Create an array and populate it. 333 */ 334 jclass stringClass; 335 jobjectArray strArray; 336 337 const size_t numArgs = args.size(); 338 stringClass = env->FindClass("java/lang/String"); 339 strArray = env->NewObjectArray(numArgs, stringClass, NULL); 340 341 for (size_t i = 0; i < numArgs; i++) { 342 jstring argStr = env->NewStringUTF(args[i].string()); 343 env->SetObjectArrayElement(strArray, i, argStr); 344 } 345 346 env->CallStaticVoidMethod(clazz, methodId, strArray); 347 return NO_ERROR; 348 } 349 350 /* 351 * The VM calls this through the "exit" hook. 352 */ 353 static void runtime_exit(int code) 354 { 355 gCurRuntime->exit(code); 356 } 357 358 /* 359 * The VM calls this through the "vfprintf" hook. 360 * 361 * We ignore "fp" and just write the results to the log file. 362 */ 363 static void runtime_vfprintf(FILE* fp, const char* format, va_list ap) 364 { 365 LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap); 366 } 367 368 /** 369 * The VM calls this when mutex contention debugging is enabled to 370 * determine whether or not the blocked thread was a "sensitive thread" 371 * for user responsiveness/smoothess. 372 * 373 * Our policy for this is whether or not we're tracing any StrictMode 374 * events on this thread (which we might've inherited via Binder calls 375 * into us) 376 */ 377 static bool runtime_isSensitiveThread() { 378 IPCThreadState* state = IPCThreadState::selfOrNull(); 379 return state && state->getStrictModePolicy() != 0; 380 } 381 382 static int hasDir(const char* dir) 383 { 384 struct stat s; 385 int res = stat(dir, &s); 386 if (res == 0) { 387 return S_ISDIR(s.st_mode); 388 } 389 return 0; 390 } 391 392 static bool hasFile(const char* file) { 393 struct stat s; 394 int res = stat(file, &s); 395 if (res == 0) { 396 return S_ISREG(s.st_mode); 397 } 398 return false; 399 } 400 401 /* 402 * Read the persistent locale. Inspects the following system properties 403 * (in order) and returns the first non-empty property in the list : 404 * 405 * (1) persist.sys.locale 406 * (2) persist.sys.language/country/localevar (country and localevar are 407 * inspected iff. language is non-empty. 408 * (3) ro.product.locale 409 * (4) ro.product.locale.language/region 410 * 411 * Note that we need to inspect persist.sys.language/country/localevar to 412 * preserve language settings for devices that are upgrading from Lollipop 413 * to M. The same goes for ro.product.locale.language/region as well. 414 */ 415 const std::string readLocale() 416 { 417 const std::string locale = GetProperty("persist.sys.locale", ""); 418 if (!locale.empty()) { 419 return locale; 420 } 421 422 const std::string language = GetProperty("persist.sys.language", ""); 423 if (!language.empty()) { 424 const std::string country = GetProperty("persist.sys.country", ""); 425 const std::string variant = GetProperty("persist.sys.localevar", ""); 426 427 std::string out = language; 428 if (!country.empty()) { 429 out = out + "-" + country; 430 } 431 432 if (!variant.empty()) { 433 out = out + "-" + variant; 434 } 435 436 return out; 437 } 438 439 const std::string productLocale = GetProperty("ro.product.locale", ""); 440 if (!productLocale.empty()) { 441 return productLocale; 442 } 443 444 // If persist.sys.locale and ro.product.locale are missing, 445 // construct a locale value from the individual locale components. 446 const std::string productLanguage = GetProperty("ro.product.locale.language", "en"); 447 const std::string productRegion = GetProperty("ro.product.locale.region", "US"); 448 449 return productLanguage + "-" + productRegion; 450 } 451 452 void AndroidRuntime::addOption(const char* optionString, void* extraInfo) 453 { 454 JavaVMOption opt; 455 opt.optionString = optionString; 456 opt.extraInfo = extraInfo; 457 mOptions.add(opt); 458 } 459 460 /* 461 * Parse a property containing space-separated options that should be 462 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap". 463 * 464 * This will cut up "extraOptsBuf" as we chop it into individual options. 465 * 466 * If "quotingArg" is non-null, it is passed before each extra option in mOptions. 467 * 468 * Adds the strings, if any, to mOptions. 469 */ 470 void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg) 471 { 472 char* start = extraOptsBuf; 473 char* end = NULL; 474 while (*start != '\0') { 475 while (*start == ' ') /* skip leading whitespace */ 476 start++; 477 if (*start == '\0') /* was trailing ws, bail */ 478 break; 479 480 end = start+1; 481 while (*end != ' ' && *end != '\0') /* find end of token */ 482 end++; 483 if (*end == ' ') 484 *end++ = '\0'; /* mark end, advance to indicate more */ 485 486 if (quotingArg != NULL) { 487 addOption(quotingArg); 488 } 489 addOption(start); 490 start = end; 491 } 492 } 493 494 /* 495 * Reads a "property" into "buffer" with a default of "defaultArg". If 496 * the property is non-empty, it is treated as a runtime option such 497 * as "-Xmx32m". 498 * 499 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 500 * 501 * If an argument is found, it is added to mOptions. 502 * 503 * If an option is found, it is added to mOptions and true is 504 * returned. Otherwise false is returned. 505 */ 506 bool AndroidRuntime::parseRuntimeOption(const char* property, 507 char* buffer, 508 const char* runtimeArg, 509 const char* defaultArg) 510 { 511 strcpy(buffer, runtimeArg); 512 size_t runtimeArgLen = strlen(runtimeArg); 513 property_get(property, buffer+runtimeArgLen, defaultArg); 514 if (buffer[runtimeArgLen] == '\0') { 515 return false; 516 } 517 addOption(buffer); 518 return true; 519 } 520 521 /* 522 * Reads a "property" into "buffer". If the property is non-empty, it 523 * is treated as a dex2oat compiler option that should be 524 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified". 525 * 526 * The "compilerArg" is a prefix for the option such as "--compiler-filter=". 527 * 528 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 529 * 530 * If an option is found, it is added to mOptions and true is 531 * returned. Otherwise false is returned. 532 */ 533 bool AndroidRuntime::parseCompilerOption(const char* property, 534 char* buffer, 535 const char* compilerArg, 536 const char* quotingArg) 537 { 538 strcpy(buffer, compilerArg); 539 size_t compilerArgLen = strlen(compilerArg); 540 property_get(property, buffer+compilerArgLen, ""); 541 if (buffer[compilerArgLen] == '\0') { 542 return false; 543 } 544 addOption(quotingArg); 545 addOption(buffer); 546 return true; 547 } 548 549 /* 550 * Reads a "property" into "buffer". If the property is non-empty, it 551 * is treated as a dex2oat compiler runtime option that should be 552 * passed as a quoted option, e.g. "-Ximage-compiler-option 553 * --runtime-arg -Ximage-compiler-option -Xmx32m". 554 * 555 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 556 * 557 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 558 * 559 * If an option is found, it is added to mOptions and true is 560 * returned. Otherwise false is returned. 561 */ 562 bool AndroidRuntime::parseCompilerRuntimeOption(const char* property, 563 char* buffer, 564 const char* runtimeArg, 565 const char* quotingArg) 566 { 567 strcpy(buffer, runtimeArg); 568 size_t runtimeArgLen = strlen(runtimeArg); 569 property_get(property, buffer+runtimeArgLen, ""); 570 if (buffer[runtimeArgLen] == '\0') { 571 return false; 572 } 573 addOption(quotingArg); 574 addOption("--runtime-arg"); 575 addOption(quotingArg); 576 addOption(buffer); 577 return true; 578 } 579 580 /* 581 * Start the Dalvik Virtual Machine. 582 * 583 * Various arguments, most determined by system properties, are passed in. 584 * The "mOptions" vector is updated. 585 * 586 * CAUTION: when adding options in here, be careful not to put the 587 * char buffer inside a nested scope. Adding the buffer to the 588 * options using mOptions.add() does not copy the buffer, so if the 589 * buffer goes out of scope the option may be overwritten. It's best 590 * to put the buffer at the top of the function so that it is more 591 * unlikely that someone will surround it in a scope at a later time 592 * and thus introduce a bug. 593 * 594 * Returns 0 on success. 595 */ 596 int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote) 597 { 598 JavaVMInitArgs initArgs; 599 char propBuf[PROPERTY_VALUE_MAX]; 600 char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX]; 601 char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX]; 602 char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 603 char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 604 char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX]; 605 char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX]; 606 char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX]; 607 char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX]; 608 char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX]; 609 char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX]; 610 char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX]; 611 char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX]; 612 char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX]; 613 char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX]; 614 char hotstartupsamplesOptsBuf[sizeof("-Xps-hot-startup-method-samples:")-1 + PROPERTY_VALUE_MAX]; 615 char madviseRandomOptsBuf[sizeof("-XX:MadviseRandomAccess:")-1 + PROPERTY_VALUE_MAX]; 616 char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX]; 617 char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX]; 618 char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX]; 619 char foregroundHeapGrowthMultiplierOptsBuf[ 620 sizeof("-XX:ForegroundHeapGrowthMultiplier=")-1 + PROPERTY_VALUE_MAX]; 621 char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX]; 622 char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 623 char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 624 char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 625 char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 626 char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 627 char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 628 char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 629 char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 630 char dex2oat_isa_variant_key[PROPERTY_KEY_MAX]; 631 char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX]; 632 char dex2oat_isa_features_key[PROPERTY_KEY_MAX]; 633 char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX]; 634 char dex2oatFlagsBuf[PROPERTY_VALUE_MAX]; 635 char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX]; 636 char extraOptsBuf[PROPERTY_VALUE_MAX]; 637 char voldDecryptBuf[PROPERTY_VALUE_MAX]; 638 enum { 639 kEMDefault, 640 kEMIntPortable, 641 kEMIntFast, 642 kEMJitCompiler, 643 } executionMode = kEMDefault; 644 char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX]; 645 char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX]; 646 char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX]; 647 char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX]; 648 char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX]; 649 char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX]; 650 std::string fingerprintBuf; 651 char jdwpProviderBuf[sizeof("-XjdwpProvider:") - 1 + 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 // If dalvik.vm.stack-trace-dir is set, it enables the "new" stack trace 683 // dump scheme and a new file is created for each stack dump. If it isn't set, 684 // the old scheme is enabled. 685 property_get("dalvik.vm.stack-trace-dir", propBuf, ""); 686 if (strlen(propBuf) > 0) { 687 addOption("-Xusetombstonedtraces"); 688 } else { 689 parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:"); 690 } 691 692 strcpy(jniOptsBuf, "-Xjniopts:"); 693 if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) { 694 ALOGI("JNI options: '%s'\n", jniOptsBuf); 695 } 696 697 /* route exit() to our handler */ 698 addOption("exit", (void*) runtime_exit); 699 700 /* route fprintf() to our handler */ 701 addOption("vfprintf", (void*) runtime_vfprintf); 702 703 /* register the framework-specific "is sensitive thread" hook */ 704 addOption("sensitiveThread", (void*) runtime_isSensitiveThread); 705 706 /* enable verbose; standard options are { jni, gc, class } */ 707 //addOption("-verbose:jni"); 708 addOption("-verbose:gc"); 709 //addOption("-verbose:class"); 710 711 /* 712 * The default starting and maximum size of the heap. Larger 713 * values should be specified in a product property override. 714 */ 715 parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m"); 716 parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m"); 717 718 parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit="); 719 parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree="); 720 parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree="); 721 parseRuntimeOption("dalvik.vm.heaptargetutilization", 722 heaptargetutilizationOptsBuf, 723 "-XX:HeapTargetUtilization="); 724 725 /* Foreground heap growth multiplier option */ 726 parseRuntimeOption("dalvik.vm.foreground-heap-growth-multiplier", 727 foregroundHeapGrowthMultiplierOptsBuf, 728 "-XX:ForegroundHeapGrowthMultiplier="); 729 730 /* 731 * JIT related options. 732 */ 733 parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:"); 734 parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:"); 735 parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:"); 736 parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:"); 737 property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, ""); 738 if (strcmp(useJitProfilesOptsBuf, "true") == 0) { 739 addOption("-Xjitsaveprofilinginfo"); 740 } 741 742 parseRuntimeOption("dalvik.vm.jitprithreadweight", 743 jitprithreadweightOptBuf, 744 "-Xjitprithreadweight:"); 745 746 parseRuntimeOption("dalvik.vm.jittransitionweight", 747 jittransitionweightOptBuf, 748 "-Xjittransitionweight:"); 749 750 property_get("dalvik.vm.profilebootimage", propBuf, ""); 751 if (strcmp(propBuf, "true") == 0) { 752 addOption("-Xps-profile-boot-class-path"); 753 addOption("-Xps-profile-aot-code"); 754 } 755 756 /* 757 * Madvise related options. 758 */ 759 parseRuntimeOption("dalvik.vm.madvise-random", madviseRandomOptsBuf, "-XX:MadviseRandomAccess:"); 760 761 /* 762 * Profile related options. 763 */ 764 parseRuntimeOption("dalvik.vm.hot-startup-method-samples", hotstartupsamplesOptsBuf, 765 "-Xps-hot-startup-method-samples:"); 766 767 property_get("ro.config.low_ram", propBuf, ""); 768 if (strcmp(propBuf, "true") == 0) { 769 addOption("-XX:LowMemoryMode"); 770 } 771 772 parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:"); 773 parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC="); 774 775 /* 776 * Enable debugging only for apps forked from zygote. 777 */ 778 if (zygote) { 779 // Set the JDWP provider and required arguments. By default let the runtime choose how JDWP is 780 // implemented. When this is not set the runtime defaults to not allowing JDWP. 781 addOption("-XjdwpOptions:suspend=n,server=y"); 782 parseRuntimeOption("dalvik.vm.jdwp-provider", 783 jdwpProviderBuf, 784 "-XjdwpProvider:", 785 "default"); 786 } 787 788 parseRuntimeOption("dalvik.vm.lockprof.threshold", 789 lockProfThresholdBuf, 790 "-Xlockprofthreshold:"); 791 792 if (executionMode == kEMIntPortable) { 793 addOption("-Xint:portable"); 794 } else if (executionMode == kEMIntFast) { 795 addOption("-Xint:fast"); 796 } else if (executionMode == kEMJitCompiler) { 797 addOption("-Xint:jit"); 798 } 799 800 // If we are booting without the real /data, don't spend time compiling. 801 property_get("vold.decrypt", voldDecryptBuf, ""); 802 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || 803 (strcmp(voldDecryptBuf, "1") == 0)); 804 805 // Extra options for boot.art/boot.oat image generation. 806 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, 807 "-Xms", "-Ximage-compiler-option"); 808 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, 809 "-Xmx", "-Ximage-compiler-option"); 810 if (skip_compilation) { 811 addOption("-Ximage-compiler-option"); 812 addOption("--compiler-filter=assume-verified"); 813 } else { 814 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, 815 "--compiler-filter=", "-Ximage-compiler-option"); 816 } 817 818 // If there is a boot profile, it takes precedence over the image and preloaded classes. 819 if (hasFile("/system/etc/boot-image.prof")) { 820 addOption("-Ximage-compiler-option"); 821 addOption("--profile-file=/system/etc/boot-image.prof"); 822 addOption("-Ximage-compiler-option"); 823 addOption("--compiler-filter=speed-profile"); 824 } else { 825 // Make sure there is a preloaded-classes file. 826 if (!hasFile("/system/etc/preloaded-classes")) { 827 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n", 828 strerror(errno)); 829 return -1; 830 } 831 addOption("-Ximage-compiler-option"); 832 addOption("--image-classes=/system/etc/preloaded-classes"); 833 834 // If there is a compiled-classes file, push it. 835 if (hasFile("/system/etc/compiled-classes")) { 836 addOption("-Ximage-compiler-option"); 837 addOption("--compiled-classes=/system/etc/compiled-classes"); 838 } 839 840 // If there is a dirty-image-objects file, push it. 841 if (hasFile("/system/etc/dirty-image-objects")) { 842 addOption("-Ximage-compiler-option"); 843 addOption("--dirty-image-objects=/system/etc/dirty-image-objects"); 844 } 845 } 846 847 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); 848 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); 849 850 // Extra options for DexClassLoader. 851 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, 852 "-Xms", "-Xcompiler-option"); 853 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, 854 "-Xmx", "-Xcompiler-option"); 855 if (skip_compilation) { 856 addOption("-Xcompiler-option"); 857 addOption("--compiler-filter=assume-verified"); 858 859 // We skip compilation when a minimal runtime is brought up for decryption. In that case 860 // /data is temporarily backed by a tmpfs, which is usually small. 861 // If the system image contains prebuilts, they will be relocated into the tmpfs. In this 862 // specific situation it is acceptable to *not* relocate and run out of the prebuilts 863 // directly instead. 864 addOption("--runtime-arg"); 865 addOption("-Xnorelocate"); 866 } else { 867 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, 868 "--compiler-filter=", "-Xcompiler-option"); 869 } 870 parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option"); 871 parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j", 872 "-Ximage-compiler-option"); 873 874 // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to 875 // pass the instruction-set-features/variant as an image-compiler-option. 876 // TODO: Find a better way for the instruction-set. 877 #if defined(__arm__) 878 constexpr const char* instruction_set = "arm"; 879 #elif defined(__aarch64__) 880 constexpr const char* instruction_set = "arm64"; 881 #elif defined(__mips__) && !defined(__LP64__) 882 constexpr const char* instruction_set = "mips"; 883 #elif defined(__mips__) && defined(__LP64__) 884 constexpr const char* instruction_set = "mips64"; 885 #elif defined(__i386__) 886 constexpr const char* instruction_set = "x86"; 887 #elif defined(__x86_64__) 888 constexpr const char* instruction_set = "x86_64"; 889 #else 890 constexpr const char* instruction_set = "unknown"; 891 #endif 892 // Note: it is OK to reuse the buffer, as the values are exactly the same between 893 // * compiler-option, used for runtime compilation (DexClassLoader) 894 // * image-compiler-option, used for boot-image compilation on device 895 896 // Copy the variant. 897 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set); 898 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 899 "--instruction-set-variant=", "-Ximage-compiler-option"); 900 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 901 "--instruction-set-variant=", "-Xcompiler-option"); 902 // Copy the features. 903 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set); 904 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 905 "--instruction-set-features=", "-Ximage-compiler-option"); 906 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 907 "--instruction-set-features=", "-Xcompiler-option"); 908 909 910 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); 911 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); 912 913 /* extra options; parse this late so it overrides others */ 914 property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); 915 parseExtraOpts(extraOptsBuf, NULL); 916 917 /* Set the properties for locale */ 918 { 919 strcpy(localeOption, "-Duser.locale="); 920 const std::string locale = readLocale(); 921 strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX); 922 addOption(localeOption); 923 } 924 925 // Trace files are stored in /data/misc/trace which is writable only in debug mode. 926 property_get("ro.debuggable", propBuf, "0"); 927 if (strcmp(propBuf, "1") == 0) { 928 property_get("dalvik.vm.method-trace", propBuf, "false"); 929 if (strcmp(propBuf, "true") == 0) { 930 addOption("-Xmethod-trace"); 931 parseRuntimeOption("dalvik.vm.method-trace-file", 932 methodTraceFileBuf, 933 "-Xmethod-trace-file:"); 934 parseRuntimeOption("dalvik.vm.method-trace-file-siz", 935 methodTraceFileSizeBuf, 936 "-Xmethod-trace-file-size:"); 937 property_get("dalvik.vm.method-trace-stream", propBuf, "false"); 938 if (strcmp(propBuf, "true") == 0) { 939 addOption("-Xmethod-trace-stream"); 940 } 941 } 942 } 943 944 // Native bridge library. "0" means that native bridge is disabled. 945 property_get("ro.dalvik.vm.native.bridge", propBuf, ""); 946 if (propBuf[0] == '\0') { 947 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); 948 } else if (strcmp(propBuf, "0") != 0) { 949 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, 950 "-XX:NativeBridge=%s", propBuf); 951 addOption(nativeBridgeLibrary); 952 } 953 954 #if defined(__LP64__) 955 const char* cpu_abilist_property_name = "ro.product.cpu.abilist64"; 956 #else 957 const char* cpu_abilist_property_name = "ro.product.cpu.abilist32"; 958 #endif // defined(__LP64__) 959 property_get(cpu_abilist_property_name, propBuf, ""); 960 if (propBuf[0] == '\0') { 961 ALOGE("%s is not expected to be empty", cpu_abilist_property_name); 962 return -1; 963 } 964 snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf); 965 addOption(cpuAbiListBuf); 966 967 // Dalvik-cache pruning counter. 968 parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf, 969 "-Xzygote-max-boot-retry="); 970 971 /* 972 * When running with debug.generate-debug-info, add --generate-debug-info to 973 * the compiler options so that the boot image, if it is compiled on device, 974 * will include native debugging information. 975 */ 976 property_get("debug.generate-debug-info", propBuf, ""); 977 if (strcmp(propBuf, "true") == 0) { 978 addOption("-Xcompiler-option"); 979 addOption("--generate-debug-info"); 980 addOption("-Ximage-compiler-option"); 981 addOption("--generate-debug-info"); 982 } 983 984 // The mini-debug-info makes it possible to backtrace through JIT code. 985 if (property_get_bool("dalvik.vm.minidebuginfo", 0)) { 986 addOption("-Xcompiler-option"); 987 addOption("--generate-mini-debug-info"); 988 } 989 990 /* 991 * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will 992 * contain the fingerprint and can be parsed. 993 * Fingerprints are potentially longer than PROPERTY_VALUE_MAX, so parseRuntimeOption() cannot 994 * be used here. 995 * Do not ever re-assign fingerprintBuf as its c_str() value is stored in mOptions. 996 */ 997 std::string fingerprint = GetProperty("ro.build.fingerprint", ""); 998 if (!fingerprint.empty()) { 999 fingerprintBuf = "-Xfingerprint:" + fingerprint; 1000 addOption(fingerprintBuf.c_str()); 1001 } 1002 1003 initArgs.version = JNI_VERSION_1_4; 1004 initArgs.options = mOptions.editArray(); 1005 initArgs.nOptions = mOptions.size(); 1006 initArgs.ignoreUnrecognized = JNI_FALSE; 1007 1008 /* 1009 * Initialize the VM. 1010 * 1011 * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. 1012 * If this call succeeds, the VM is ready, and we can start issuing 1013 * JNI calls. 1014 */ 1015 if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { 1016 ALOGE("JNI_CreateJavaVM failed\n"); 1017 return -1; 1018 } 1019 1020 return 0; 1021 } 1022 1023 char* AndroidRuntime::toSlashClassName(const char* className) 1024 { 1025 char* result = strdup(className); 1026 for (char* cp = result; *cp != '\0'; cp++) { 1027 if (*cp == '.') { 1028 *cp = '/'; 1029 } 1030 } 1031 return result; 1032 } 1033 1034 /** Create a Java string from an ASCII or Latin-1 string */ 1035 jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { 1036 if (!bytes) return NULL; 1037 int length = strlen(bytes); 1038 jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); 1039 if (!buffer) return NULL; 1040 jchar* chp = buffer; 1041 for (int i = 0; i < length; i++) { 1042 *chp++ = *bytes++; 1043 } 1044 return env->NewString(buffer, length); 1045 } 1046 1047 1048 /* 1049 * Start the Android runtime. This involves starting the virtual machine 1050 * and calling the "static void main(String[] args)" method in the class 1051 * named by "className". 1052 * 1053 * Passes the main function two arguments, the class name and the specified 1054 * options string. 1055 */ 1056 void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote) 1057 { 1058 ALOGD(">>>>>> START %s uid %d <<<<<<\n", 1059 className != NULL ? className : "(unknown)", getuid()); 1060 1061 static const String8 startSystemServer("start-system-server"); 1062 1063 /* 1064 * 'startSystemServer == true' means runtime is obsolete and not run from 1065 * init.rc anymore, so we print out the boot start event here. 1066 */ 1067 for (size_t i = 0; i < options.size(); ++i) { 1068 if (options[i] == startSystemServer) { 1069 /* track our progress through the boot sequence */ 1070 const int LOG_BOOT_PROGRESS_START = 3000; 1071 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); 1072 } 1073 } 1074 1075 const char* rootDir = getenv("ANDROID_ROOT"); 1076 if (rootDir == NULL) { 1077 rootDir = "/system"; 1078 if (!hasDir("/system")) { 1079 LOG_FATAL("No root directory specified, and /android does not exist."); 1080 return; 1081 } 1082 setenv("ANDROID_ROOT", rootDir, 1); 1083 } 1084 1085 //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); 1086 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); 1087 1088 /* start the virtual machine */ 1089 JniInvocation jni_invocation; 1090 jni_invocation.Init(NULL); 1091 JNIEnv* env; 1092 if (startVm(&mJavaVM, &env, zygote) != 0) { 1093 return; 1094 } 1095 onVmCreated(env); 1096 1097 /* 1098 * Register android functions. 1099 */ 1100 if (startReg(env) < 0) { 1101 ALOGE("Unable to register all android natives\n"); 1102 return; 1103 } 1104 1105 /* 1106 * We want to call main() with a String array with arguments in it. 1107 * At present we have two arguments, the class name and an option string. 1108 * Create an array to hold them. 1109 */ 1110 jclass stringClass; 1111 jobjectArray strArray; 1112 jstring classNameStr; 1113 1114 stringClass = env->FindClass("java/lang/String"); 1115 assert(stringClass != NULL); 1116 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); 1117 assert(strArray != NULL); 1118 classNameStr = env->NewStringUTF(className); 1119 assert(classNameStr != NULL); 1120 env->SetObjectArrayElement(strArray, 0, classNameStr); 1121 1122 for (size_t i = 0; i < options.size(); ++i) { 1123 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); 1124 assert(optionsStr != NULL); 1125 env->SetObjectArrayElement(strArray, i + 1, optionsStr); 1126 } 1127 1128 /* 1129 * Start VM. This thread becomes the main thread of the VM, and will 1130 * not return until the VM exits. 1131 */ 1132 char* slashClassName = toSlashClassName(className != NULL ? className : ""); 1133 jclass startClass = env->FindClass(slashClassName); 1134 if (startClass == NULL) { 1135 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); 1136 /* keep going */ 1137 } else { 1138 jmethodID startMeth = env->GetStaticMethodID(startClass, "main", 1139 "([Ljava/lang/String;)V"); 1140 if (startMeth == NULL) { 1141 ALOGE("JavaVM unable to find main() in '%s'\n", className); 1142 /* keep going */ 1143 } else { 1144 env->CallStaticVoidMethod(startClass, startMeth, strArray); 1145 1146 #if 0 1147 if (env->ExceptionCheck()) 1148 threadExitUncaughtException(env); 1149 #endif 1150 } 1151 } 1152 free(slashClassName); 1153 1154 ALOGD("Shutting down VM\n"); 1155 if (mJavaVM->DetachCurrentThread() != JNI_OK) 1156 ALOGW("Warning: unable to detach main thread\n"); 1157 if (mJavaVM->DestroyJavaVM() != 0) 1158 ALOGW("Warning: VM did not shut down cleanly\n"); 1159 } 1160 1161 void AndroidRuntime::exit(int code) 1162 { 1163 if (mExitWithoutCleanup) { 1164 ALOGI("VM exiting with result code %d, cleanup skipped.", code); 1165 ::_exit(code); 1166 } else { 1167 ALOGI("VM exiting with result code %d.", code); 1168 onExit(code); 1169 ::exit(code); 1170 } 1171 } 1172 1173 void AndroidRuntime::onVmCreated(JNIEnv* env) 1174 { 1175 // If AndroidRuntime had anything to do here, we'd have done it in 'start'. 1176 } 1177 1178 /* 1179 * Get the JNIEnv pointer for this thread. 1180 * 1181 * Returns NULL if the slot wasn't allocated or populated. 1182 */ 1183 /*static*/ JNIEnv* AndroidRuntime::getJNIEnv() 1184 { 1185 JNIEnv* env; 1186 JavaVM* vm = AndroidRuntime::getJavaVM(); 1187 assert(vm != NULL); 1188 1189 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) 1190 return NULL; 1191 return env; 1192 } 1193 1194 /* 1195 * Makes the current thread visible to the VM. 1196 * 1197 * The JNIEnv pointer returned is only valid for the current thread, and 1198 * thus must be tucked into thread-local storage. 1199 */ 1200 static int javaAttachThread(const char* threadName, JNIEnv** pEnv) 1201 { 1202 JavaVMAttachArgs args; 1203 JavaVM* vm; 1204 jint result; 1205 1206 vm = AndroidRuntime::getJavaVM(); 1207 assert(vm != NULL); 1208 1209 args.version = JNI_VERSION_1_4; 1210 args.name = (char*) threadName; 1211 args.group = NULL; 1212 1213 result = vm->AttachCurrentThread(pEnv, (void*) &args); 1214 if (result != JNI_OK) 1215 ALOGI("NOTE: attach of thread '%s' failed\n", threadName); 1216 1217 return result; 1218 } 1219 1220 /* 1221 * Detach the current thread from the set visible to the VM. 1222 */ 1223 static int javaDetachThread(void) 1224 { 1225 JavaVM* vm; 1226 jint result; 1227 1228 vm = AndroidRuntime::getJavaVM(); 1229 assert(vm != NULL); 1230 1231 result = vm->DetachCurrentThread(); 1232 if (result != JNI_OK) 1233 ALOGE("ERROR: thread detach failed\n"); 1234 return result; 1235 } 1236 1237 /* 1238 * When starting a native thread that will be visible from the VM, we 1239 * bounce through this to get the right attach/detach action. 1240 * Note that this function calls free(args) 1241 */ 1242 /*static*/ int AndroidRuntime::javaThreadShell(void* args) { 1243 void* start = ((void**)args)[0]; 1244 void* userData = ((void **)args)[1]; 1245 char* name = (char*) ((void **)args)[2]; // we own this storage 1246 free(args); 1247 JNIEnv* env; 1248 int result; 1249 1250 /* hook us into the VM */ 1251 if (javaAttachThread(name, &env) != JNI_OK) 1252 return -1; 1253 1254 /* start the thread running */ 1255 result = (*(android_thread_func_t)start)(userData); 1256 1257 /* unhook us */ 1258 javaDetachThread(); 1259 free(name); 1260 1261 return result; 1262 } 1263 1264 /* 1265 * This is invoked from androidCreateThreadEtc() via the callback 1266 * set with androidSetCreateThreadFunc(). 1267 * 1268 * We need to create the new thread in such a way that it gets hooked 1269 * into the VM before it really starts executing. 1270 */ 1271 /*static*/ int AndroidRuntime::javaCreateThreadEtc( 1272 android_thread_func_t entryFunction, 1273 void* userData, 1274 const char* threadName, 1275 int32_t threadPriority, 1276 size_t threadStackSize, 1277 android_thread_id_t* threadId) 1278 { 1279 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free 1280 int result; 1281 1282 LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc"); 1283 1284 args[0] = (void*) entryFunction; 1285 args[1] = userData; 1286 args[2] = (void*) strdup(threadName); // javaThreadShell must free 1287 1288 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, 1289 threadName, threadPriority, threadStackSize, threadId); 1290 return result; 1291 } 1292 1293 /* 1294 * Create a thread that is visible from the VM. 1295 * 1296 * This is called from elsewhere in the library. 1297 */ 1298 /*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, 1299 void (*start)(void *), void* arg) 1300 { 1301 android_thread_id_t threadId = 0; 1302 javaCreateThreadEtc((android_thread_func_t) start, arg, name, 1303 ANDROID_PRIORITY_DEFAULT, 0, &threadId); 1304 return threadId; 1305 } 1306 1307 #if 0 1308 static void quickTest(void* arg) 1309 { 1310 const char* str = (const char*) arg; 1311 1312 printf("In quickTest: %s\n", str); 1313 } 1314 #endif 1315 1316 #ifdef NDEBUG 1317 #define REG_JNI(name) { name } 1318 struct RegJNIRec { 1319 int (*mProc)(JNIEnv*); 1320 }; 1321 #else 1322 #define REG_JNI(name) { name, #name } 1323 struct RegJNIRec { 1324 int (*mProc)(JNIEnv*); 1325 const char* mName; 1326 }; 1327 #endif 1328 1329 typedef void (*RegJAMProc)(); 1330 1331 static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) 1332 { 1333 for (size_t i = 0; i < count; i++) { 1334 if (array[i].mProc(env) < 0) { 1335 #ifndef NDEBUG 1336 ALOGD("----------!!! %s failed to load\n", array[i].mName); 1337 #endif 1338 return -1; 1339 } 1340 } 1341 return 0; 1342 } 1343 1344 static const RegJNIRec gRegJNI[] = { 1345 REG_JNI(register_com_android_internal_os_RuntimeInit), 1346 REG_JNI(register_com_android_internal_os_ZygoteInit_nativeZygoteInit), 1347 REG_JNI(register_android_os_SystemClock), 1348 REG_JNI(register_android_util_EventLog), 1349 REG_JNI(register_android_util_Log), 1350 REG_JNI(register_android_util_MemoryIntArray), 1351 REG_JNI(register_android_util_PathParser), 1352 REG_JNI(register_android_util_StatsLog), 1353 REG_JNI(register_android_app_admin_SecurityLog), 1354 REG_JNI(register_android_content_AssetManager), 1355 REG_JNI(register_android_content_StringBlock), 1356 REG_JNI(register_android_content_XmlBlock), 1357 REG_JNI(register_android_content_res_ApkAssets), 1358 REG_JNI(register_android_text_AndroidCharacter), 1359 REG_JNI(register_android_text_Hyphenator), 1360 REG_JNI(register_android_text_MeasuredParagraph), 1361 REG_JNI(register_android_text_StaticLayout), 1362 REG_JNI(register_android_view_InputDevice), 1363 REG_JNI(register_android_view_KeyCharacterMap), 1364 REG_JNI(register_android_os_Process), 1365 REG_JNI(register_android_os_SystemProperties), 1366 REG_JNI(register_android_os_Binder), 1367 REG_JNI(register_android_os_Parcel), 1368 REG_JNI(register_android_os_HidlSupport), 1369 REG_JNI(register_android_os_HwBinder), 1370 REG_JNI(register_android_os_HwBlob), 1371 REG_JNI(register_android_os_HwParcel), 1372 REG_JNI(register_android_os_HwRemoteBinder), 1373 REG_JNI(register_android_os_VintfObject), 1374 REG_JNI(register_android_os_VintfRuntimeInfo), 1375 REG_JNI(register_android_nio_utils), 1376 REG_JNI(register_android_graphics_Canvas), 1377 REG_JNI(register_android_graphics_Graphics), 1378 REG_JNI(register_android_view_DisplayEventReceiver), 1379 REG_JNI(register_android_view_RenderNode), 1380 REG_JNI(register_android_view_RenderNodeAnimator), 1381 REG_JNI(register_android_view_DisplayListCanvas), 1382 REG_JNI(register_android_view_TextureLayer), 1383 REG_JNI(register_android_view_ThreadedRenderer), 1384 REG_JNI(register_android_view_Surface), 1385 REG_JNI(register_android_view_SurfaceControl), 1386 REG_JNI(register_android_view_SurfaceSession), 1387 REG_JNI(register_android_view_TextureView), 1388 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), 1389 REG_JNI(register_com_google_android_gles_jni_EGLImpl), 1390 REG_JNI(register_com_google_android_gles_jni_GLImpl), 1391 REG_JNI(register_android_opengl_jni_EGL14), 1392 REG_JNI(register_android_opengl_jni_EGLExt), 1393 REG_JNI(register_android_opengl_jni_GLES10), 1394 REG_JNI(register_android_opengl_jni_GLES10Ext), 1395 REG_JNI(register_android_opengl_jni_GLES11), 1396 REG_JNI(register_android_opengl_jni_GLES11Ext), 1397 REG_JNI(register_android_opengl_jni_GLES20), 1398 REG_JNI(register_android_opengl_jni_GLES30), 1399 REG_JNI(register_android_opengl_jni_GLES31), 1400 REG_JNI(register_android_opengl_jni_GLES31Ext), 1401 REG_JNI(register_android_opengl_jni_GLES32), 1402 1403 REG_JNI(register_android_graphics_Bitmap), 1404 REG_JNI(register_android_graphics_BitmapFactory), 1405 REG_JNI(register_android_graphics_BitmapRegionDecoder), 1406 REG_JNI(register_android_graphics_ByteBufferStreamAdaptor), 1407 REG_JNI(register_android_graphics_Camera), 1408 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), 1409 REG_JNI(register_android_graphics_CanvasProperty), 1410 REG_JNI(register_android_graphics_ColorFilter), 1411 REG_JNI(register_android_graphics_DrawFilter), 1412 REG_JNI(register_android_graphics_FontFamily), 1413 REG_JNI(register_android_graphics_GraphicBuffer), 1414 REG_JNI(register_android_graphics_ImageDecoder), 1415 REG_JNI(register_android_graphics_drawable_AnimatedImageDrawable), 1416 REG_JNI(register_android_graphics_Interpolator), 1417 REG_JNI(register_android_graphics_MaskFilter), 1418 REG_JNI(register_android_graphics_Matrix), 1419 REG_JNI(register_android_graphics_Movie), 1420 REG_JNI(register_android_graphics_NinePatch), 1421 REG_JNI(register_android_graphics_Paint), 1422 REG_JNI(register_android_graphics_Path), 1423 REG_JNI(register_android_graphics_PathMeasure), 1424 REG_JNI(register_android_graphics_PathEffect), 1425 REG_JNI(register_android_graphics_Picture), 1426 REG_JNI(register_android_graphics_Region), 1427 REG_JNI(register_android_graphics_Shader), 1428 REG_JNI(register_android_graphics_SurfaceTexture), 1429 REG_JNI(register_android_graphics_Typeface), 1430 REG_JNI(register_android_graphics_YuvImage), 1431 REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable), 1432 REG_JNI(register_android_graphics_drawable_VectorDrawable), 1433 REG_JNI(register_android_graphics_pdf_PdfDocument), 1434 REG_JNI(register_android_graphics_pdf_PdfEditor), 1435 REG_JNI(register_android_graphics_pdf_PdfRenderer), 1436 1437 REG_JNI(register_android_database_CursorWindow), 1438 REG_JNI(register_android_database_SQLiteConnection), 1439 REG_JNI(register_android_database_SQLiteGlobal), 1440 REG_JNI(register_android_database_SQLiteDebug), 1441 REG_JNI(register_android_os_Debug), 1442 REG_JNI(register_android_os_FileObserver), 1443 REG_JNI(register_android_os_GraphicsEnvironment), 1444 REG_JNI(register_android_os_MessageQueue), 1445 REG_JNI(register_android_os_SELinux), 1446 REG_JNI(register_android_os_Trace), 1447 REG_JNI(register_android_os_UEventObserver), 1448 REG_JNI(register_android_net_LocalSocketImpl), 1449 REG_JNI(register_android_net_NetworkUtils), 1450 REG_JNI(register_android_os_MemoryFile), 1451 REG_JNI(register_android_os_SharedMemory), 1452 REG_JNI(register_com_android_internal_os_ClassLoaderFactory), 1453 REG_JNI(register_com_android_internal_os_Zygote), 1454 REG_JNI(register_com_android_internal_os_ZygoteInit), 1455 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), 1456 REG_JNI(register_android_hardware_Camera), 1457 REG_JNI(register_android_hardware_camera2_CameraMetadata), 1458 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), 1459 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), 1460 REG_JNI(register_android_hardware_camera2_DngCreator), 1461 REG_JNI(register_android_hardware_HardwareBuffer), 1462 REG_JNI(register_android_hardware_SensorManager), 1463 REG_JNI(register_android_hardware_SerialPort), 1464 REG_JNI(register_android_hardware_SoundTrigger), 1465 REG_JNI(register_android_hardware_UsbDevice), 1466 REG_JNI(register_android_hardware_UsbDeviceConnection), 1467 REG_JNI(register_android_hardware_UsbRequest), 1468 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), 1469 REG_JNI(register_android_media_AudioRecord), 1470 REG_JNI(register_android_media_AudioSystem), 1471 REG_JNI(register_android_media_AudioTrack), 1472 REG_JNI(register_android_media_JetPlayer), 1473 REG_JNI(register_android_media_MicrophoneInfo), 1474 REG_JNI(register_android_media_RemoteDisplay), 1475 REG_JNI(register_android_media_ToneGenerator), 1476 1477 REG_JNI(register_android_opengl_classes), 1478 REG_JNI(register_android_server_NetworkManagementSocketTagger), 1479 REG_JNI(register_android_ddm_DdmHandleNativeHeap), 1480 REG_JNI(register_android_backup_BackupDataInput), 1481 REG_JNI(register_android_backup_BackupDataOutput), 1482 REG_JNI(register_android_backup_FileBackupHelperBase), 1483 REG_JNI(register_android_backup_BackupHelperDispatcher), 1484 REG_JNI(register_android_app_backup_FullBackup), 1485 REG_JNI(register_android_app_Activity), 1486 REG_JNI(register_android_app_ActivityThread), 1487 REG_JNI(register_android_app_NativeActivity), 1488 REG_JNI(register_android_util_jar_StrictJarFile), 1489 REG_JNI(register_android_view_InputChannel), 1490 REG_JNI(register_android_view_InputEventReceiver), 1491 REG_JNI(register_android_view_InputEventSender), 1492 REG_JNI(register_android_view_InputQueue), 1493 REG_JNI(register_android_view_KeyEvent), 1494 REG_JNI(register_android_view_MotionEvent), 1495 REG_JNI(register_android_view_PointerIcon), 1496 REG_JNI(register_android_view_VelocityTracker), 1497 1498 REG_JNI(register_android_content_res_ObbScanner), 1499 REG_JNI(register_android_content_res_Configuration), 1500 1501 REG_JNI(register_android_animation_PropertyValuesHolder), 1502 REG_JNI(register_android_security_Scrypt), 1503 REG_JNI(register_com_android_internal_content_NativeLibraryHelper), 1504 REG_JNI(register_com_android_internal_net_NetworkStatsFactory), 1505 REG_JNI(register_com_android_internal_os_FuseAppLoop), 1506 }; 1507 1508 /* 1509 * Register android native functions with the VM. 1510 */ 1511 /*static*/ int AndroidRuntime::startReg(JNIEnv* env) 1512 { 1513 ATRACE_NAME("RegisterAndroidNatives"); 1514 /* 1515 * This hook causes all future threads created in this process to be 1516 * attached to the JavaVM. (This needs to go away in favor of JNI 1517 * Attach calls.) 1518 */ 1519 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); 1520 1521 ALOGV("--- registering native functions ---\n"); 1522 1523 /* 1524 * Every "register" function calls one or more things that return 1525 * a local reference (e.g. FindClass). Because we haven't really 1526 * started the VM yet, they're all getting stored in the base frame 1527 * and never released. Use Push/Pop to manage the storage. 1528 */ 1529 env->PushLocalFrame(200); 1530 1531 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { 1532 env->PopLocalFrame(NULL); 1533 return -1; 1534 } 1535 env->PopLocalFrame(NULL); 1536 1537 //createJavaThread("fubar", quickTest, (void*) "hello"); 1538 1539 return 0; 1540 } 1541 1542 AndroidRuntime* AndroidRuntime::getRuntime() 1543 { 1544 return gCurRuntime; 1545 } 1546 1547 /** 1548 * Used by surface flinger's DdmConnection to register native methods from 1549 * the framework. 1550 */ 1551 extern "C" jint registerFrameworkNatives(JNIEnv* env) { 1552 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1553 } 1554 } // namespace android 1555
