AndroidRuntime.cpp revision 53a441ca8eda5a3e6209a952b1bbd32a39e19a1c
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define ATRACE_TAG ATRACE_TAG_DALVIK 18#define LOG_TAG "AndroidRuntime" 19//#define LOG_NDEBUG 0 20 21#include <android_runtime/AndroidRuntime.h> 22#include <binder/IBinder.h> 23#include <binder/IPCThreadState.h> 24#include <binder/IServiceManager.h> 25#include <utils/Log.h> 26#include <utils/misc.h> 27#include <utils/Trace.h> 28#include <binder/Parcel.h> 29#include <utils/threads.h> 30#include <cutils/properties.h> 31 32#include <SkGraphics.h> 33#include <SkImageDecoder.h> 34 35#include "jni.h" 36#include "JNIHelp.h" 37#include "JniInvocation.h" 38#include "android_util_Binder.h" 39 40#include <stdio.h> 41#include <signal.h> 42#include <sys/stat.h> 43#include <sys/types.h> 44#include <signal.h> 45#include <dirent.h> 46#include <assert.h> 47 48#include <string> 49#include <vector> 50 51 52using namespace android; 53 54extern int register_android_os_Binder(JNIEnv* env); 55extern int register_android_os_Process(JNIEnv* env); 56extern int register_android_graphics_Bitmap(JNIEnv*); 57extern int register_android_graphics_BitmapFactory(JNIEnv*); 58extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*); 59extern int register_android_graphics_Camera(JNIEnv* env); 60extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env); 61extern int register_android_graphics_Graphics(JNIEnv* env); 62extern int register_android_graphics_Interpolator(JNIEnv* env); 63extern int register_android_graphics_MaskFilter(JNIEnv* env); 64extern int register_android_graphics_Movie(JNIEnv* env); 65extern int register_android_graphics_NinePatch(JNIEnv*); 66extern int register_android_graphics_PathEffect(JNIEnv* env); 67extern int register_android_graphics_Shader(JNIEnv* env); 68extern int register_android_graphics_Typeface(JNIEnv* env); 69extern int register_android_graphics_YuvImage(JNIEnv* env); 70 71extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env); 72extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env); 73extern int register_android_opengl_jni_EGL14(JNIEnv* env); 74extern int register_android_opengl_jni_EGLExt(JNIEnv* env); 75extern int register_android_opengl_jni_GLES10(JNIEnv* env); 76extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env); 77extern int register_android_opengl_jni_GLES11(JNIEnv* env); 78extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env); 79extern int register_android_opengl_jni_GLES20(JNIEnv* env); 80extern int register_android_opengl_jni_GLES30(JNIEnv* env); 81extern int register_android_opengl_jni_GLES31(JNIEnv* env); 82extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env); 83extern int register_android_opengl_jni_GLES32(JNIEnv* env); 84 85extern int register_android_hardware_Camera(JNIEnv *env); 86extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env); 87extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env); 88extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env); 89extern int register_android_hardware_camera2_DngCreator(JNIEnv *env); 90extern int register_android_hardware_Radio(JNIEnv *env); 91extern int register_android_hardware_SensorManager(JNIEnv *env); 92extern int register_android_hardware_SerialPort(JNIEnv *env); 93extern int register_android_hardware_SoundTrigger(JNIEnv *env); 94extern int register_android_hardware_UsbDevice(JNIEnv *env); 95extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env); 96extern int register_android_hardware_UsbRequest(JNIEnv *env); 97extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env); 98extern int register_android_hardware_location_ContextHubService(JNIEnv* env); 99 100extern int register_android_media_AudioRecord(JNIEnv *env); 101extern int register_android_media_AudioSystem(JNIEnv *env); 102extern int register_android_media_AudioTrack(JNIEnv *env); 103extern int register_android_media_JetPlayer(JNIEnv *env); 104extern int register_android_media_ToneGenerator(JNIEnv *env); 105 106namespace android { 107 108/* 109 * JNI-based registration functions. Note these are properly contained in 110 * namespace android. 111 */ 112extern int register_android_app_admin_SecurityLog(JNIEnv* env); 113extern int register_android_content_AssetManager(JNIEnv* env); 114extern int register_android_util_EventLog(JNIEnv* env); 115extern int register_android_util_Log(JNIEnv* env); 116extern int register_android_util_MemoryIntArray(JNIEnv* env); 117extern int register_android_util_PathParser(JNIEnv* env); 118extern int register_android_content_StringBlock(JNIEnv* env); 119extern int register_android_content_XmlBlock(JNIEnv* env); 120extern int register_android_graphics_Canvas(JNIEnv* env); 121extern int register_android_graphics_CanvasProperty(JNIEnv* env); 122extern int register_android_graphics_ColorFilter(JNIEnv* env); 123extern int register_android_graphics_DrawFilter(JNIEnv* env); 124extern int register_android_graphics_FontFamily(JNIEnv* env); 125extern int register_android_graphics_LayerRasterizer(JNIEnv*); 126extern int register_android_graphics_Matrix(JNIEnv* env); 127extern int register_android_graphics_Paint(JNIEnv* env); 128extern int register_android_graphics_Path(JNIEnv* env); 129extern int register_android_graphics_PathMeasure(JNIEnv* env); 130extern int register_android_graphics_Picture(JNIEnv*); 131extern int register_android_graphics_PorterDuff(JNIEnv* env); 132extern int register_android_graphics_Rasterizer(JNIEnv* env); 133extern int register_android_graphics_Region(JNIEnv* env); 134extern int register_android_graphics_SurfaceTexture(JNIEnv* env); 135extern int register_android_graphics_Xfermode(JNIEnv* env); 136extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env); 137extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env); 138extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env); 139extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env); 140extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env); 141extern int register_android_view_DisplayEventReceiver(JNIEnv* env); 142extern int register_android_view_DisplayListCanvas(JNIEnv* env); 143extern int register_android_view_GraphicBuffer(JNIEnv* env); 144extern int register_android_view_HardwareLayer(JNIEnv* env); 145extern int register_android_view_RenderNode(JNIEnv* env); 146extern int register_android_view_RenderNodeAnimator(JNIEnv* env); 147extern int register_android_view_Surface(JNIEnv* env); 148extern int register_android_view_SurfaceControl(JNIEnv* env); 149extern int register_android_view_SurfaceSession(JNIEnv* env); 150extern int register_android_view_TextureView(JNIEnv* env); 151extern int register_android_view_ThreadedRenderer(JNIEnv* env); 152extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env); 153extern int register_android_database_CursorWindow(JNIEnv* env); 154extern int register_android_database_SQLiteConnection(JNIEnv* env); 155extern int register_android_database_SQLiteGlobal(JNIEnv* env); 156extern int register_android_database_SQLiteDebug(JNIEnv* env); 157extern int register_android_nio_utils(JNIEnv* env); 158extern int register_android_os_Debug(JNIEnv* env); 159extern int register_android_os_MessageQueue(JNIEnv* env); 160extern int register_android_os_Parcel(JNIEnv* env); 161extern int register_android_os_SELinux(JNIEnv* env); 162extern int register_android_os_SystemProperties(JNIEnv *env); 163extern int register_android_os_SystemClock(JNIEnv* env); 164extern int register_android_os_Trace(JNIEnv* env); 165extern int register_android_os_FileObserver(JNIEnv *env); 166extern int register_android_os_UEventObserver(JNIEnv* env); 167extern int register_android_os_MemoryFile(JNIEnv* env); 168extern int register_android_net_LocalSocketImpl(JNIEnv* env); 169extern int register_android_net_NetworkUtils(JNIEnv* env); 170extern int register_android_net_TrafficStats(JNIEnv* env); 171extern int register_android_text_AndroidCharacter(JNIEnv *env); 172extern int register_android_text_StaticLayout(JNIEnv *env); 173extern int register_android_text_AndroidBidi(JNIEnv *env); 174extern int register_android_opengl_classes(JNIEnv *env); 175extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env); 176extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env); 177extern int register_android_backup_BackupDataInput(JNIEnv *env); 178extern int register_android_backup_BackupDataOutput(JNIEnv *env); 179extern int register_android_backup_FileBackupHelperBase(JNIEnv *env); 180extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env); 181extern int register_android_app_backup_FullBackup(JNIEnv *env); 182extern int register_android_app_ApplicationLoaders(JNIEnv* env); 183extern int register_android_app_Activity(JNIEnv *env); 184extern int register_android_app_ActivityThread(JNIEnv *env); 185extern int register_android_app_NativeActivity(JNIEnv *env); 186extern int register_android_media_RemoteDisplay(JNIEnv *env); 187extern int register_android_util_jar_StrictJarFile(JNIEnv* env); 188extern int register_android_view_InputChannel(JNIEnv* env); 189extern int register_android_view_InputDevice(JNIEnv* env); 190extern int register_android_view_InputEventReceiver(JNIEnv* env); 191extern int register_android_view_InputEventSender(JNIEnv* env); 192extern int register_android_view_InputQueue(JNIEnv* env); 193extern int register_android_view_KeyCharacterMap(JNIEnv *env); 194extern int register_android_view_KeyEvent(JNIEnv* env); 195extern int register_android_view_MotionEvent(JNIEnv* env); 196extern int register_android_view_PointerIcon(JNIEnv* env); 197extern int register_android_view_VelocityTracker(JNIEnv* env); 198extern int register_android_content_res_ObbScanner(JNIEnv* env); 199extern int register_android_content_res_Configuration(JNIEnv* env); 200extern int register_android_animation_PropertyValuesHolder(JNIEnv *env); 201extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env); 202extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env); 203extern int register_com_android_internal_os_Zygote(JNIEnv *env); 204extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env); 205 206static AndroidRuntime* gCurRuntime = NULL; 207 208/* 209 * Code written in the Java Programming Language calls here from main(). 210 */ 211static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz) 212{ 213 gCurRuntime->onStarted(); 214} 215 216static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz) 217{ 218 gCurRuntime->onZygoteInit(); 219} 220 221static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env, 222 jobject clazz, jboolean exitWithoutCleanup) 223{ 224 gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup); 225} 226 227/* 228 * JNI registration. 229 */ 230static const JNINativeMethod gMethods[] = { 231 { "nativeFinishInit", "()V", 232 (void*) com_android_internal_os_RuntimeInit_nativeFinishInit }, 233 { "nativeZygoteInit", "()V", 234 (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit }, 235 { "nativeSetExitWithoutCleanup", "(Z)V", 236 (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup }, 237}; 238 239int register_com_android_internal_os_RuntimeInit(JNIEnv* env) 240{ 241 return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit", 242 gMethods, NELEM(gMethods)); 243} 244 245// ---------------------------------------------------------------------- 246 247/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL; 248 249AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) : 250 mExitWithoutCleanup(false), 251 mArgBlockStart(argBlockStart), 252 mArgBlockLength(argBlockLength) 253{ 254 SkGraphics::Init(); 255 // There is also a global font cache, but its budget is specified by 256 // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT. 257 258 // Pre-allocate enough space to hold a fair number of options. 259 mOptions.setCapacity(20); 260 261 assert(gCurRuntime == NULL); // one per process 262 gCurRuntime = this; 263} 264 265AndroidRuntime::~AndroidRuntime() 266{ 267 SkGraphics::Term(); 268} 269 270/* 271 * Register native methods using JNI. 272 */ 273/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env, 274 const char* className, const JNINativeMethod* gMethods, int numMethods) 275{ 276 return jniRegisterNativeMethods(env, className, gMethods, numMethods); 277} 278 279void AndroidRuntime::setArgv0(const char* argv0) { 280 memset(mArgBlockStart, 0, mArgBlockLength); 281 strlcpy(mArgBlockStart, argv0, mArgBlockLength); 282} 283 284status_t AndroidRuntime::callMain(const String8& className, jclass clazz, 285 const Vector<String8>& args) 286{ 287 JNIEnv* env; 288 jmethodID methodId; 289 290 ALOGD("Calling main entry %s", className.string()); 291 292 env = getJNIEnv(); 293 if (clazz == NULL || env == NULL) { 294 return UNKNOWN_ERROR; 295 } 296 297 methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V"); 298 if (methodId == NULL) { 299 ALOGE("ERROR: could not find method %s.main(String[])\n", className.string()); 300 return UNKNOWN_ERROR; 301 } 302 303 /* 304 * We want to call main() with a String array with our arguments in it. 305 * Create an array and populate it. 306 */ 307 jclass stringClass; 308 jobjectArray strArray; 309 310 const size_t numArgs = args.size(); 311 stringClass = env->FindClass("java/lang/String"); 312 strArray = env->NewObjectArray(numArgs, stringClass, NULL); 313 314 for (size_t i = 0; i < numArgs; i++) { 315 jstring argStr = env->NewStringUTF(args[i].string()); 316 env->SetObjectArrayElement(strArray, i, argStr); 317 } 318 319 env->CallStaticVoidMethod(clazz, methodId, strArray); 320 return NO_ERROR; 321} 322 323/* 324 * The VM calls this through the "exit" hook. 325 */ 326static void runtime_exit(int code) 327{ 328 gCurRuntime->exit(code); 329} 330 331/* 332 * The VM calls this through the "vfprintf" hook. 333 * 334 * We ignore "fp" and just write the results to the log file. 335 */ 336static void runtime_vfprintf(FILE* fp, const char* format, va_list ap) 337{ 338 LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap); 339} 340 341/** 342 * The VM calls this when mutex contention debugging is enabled to 343 * determine whether or not the blocked thread was a "sensitive thread" 344 * for user responsiveness/smoothess. 345 * 346 * Our policy for this is whether or not we're tracing any StrictMode 347 * events on this thread (which we might've inherited via Binder calls 348 * into us) 349 */ 350static bool runtime_isSensitiveThread() { 351 IPCThreadState* state = IPCThreadState::selfOrNull(); 352 return state && state->getStrictModePolicy() != 0; 353} 354 355static int hasDir(const char* dir) 356{ 357 struct stat s; 358 int res = stat(dir, &s); 359 if (res == 0) { 360 return S_ISDIR(s.st_mode); 361 } 362 return 0; 363} 364 365static bool hasFile(const char* file) { 366 struct stat s; 367 int res = stat(file, &s); 368 if (res == 0) { 369 return S_ISREG(s.st_mode); 370 } 371 return false; 372} 373 374// Convenience wrapper over the property API that returns an 375// std::string. 376std::string getProperty(const char* key, const char* defaultValue) { 377 std::vector<char> temp(PROPERTY_VALUE_MAX); 378 const int len = property_get(key, &temp[0], defaultValue); 379 if (len < 0) { 380 return ""; 381 } 382 return std::string(&temp[0], len); 383} 384 385/* 386 * Read the persistent locale. Inspects the following system properties 387 * (in order) and returns the first non-empty property in the list : 388 * 389 * (1) persist.sys.locale 390 * (2) persist.sys.language/country/localevar (country and localevar are 391 * inspected iff. language is non-empty. 392 * (3) ro.product.locale 393 * (4) ro.product.locale.language/region 394 * 395 * Note that we need to inspect persist.sys.language/country/localevar to 396 * preserve language settings for devices that are upgrading from Lollipop 397 * to M. The same goes for ro.product.locale.language/region as well. 398 */ 399const std::string readLocale() 400{ 401 const std::string locale = getProperty("persist.sys.locale", ""); 402 if (!locale.empty()) { 403 return locale; 404 } 405 406 const std::string language = getProperty("persist.sys.language", ""); 407 if (!language.empty()) { 408 const std::string country = getProperty("persist.sys.country", ""); 409 const std::string variant = getProperty("persist.sys.localevar", ""); 410 411 std::string out = language; 412 if (!country.empty()) { 413 out = out + "-" + country; 414 } 415 416 if (!variant.empty()) { 417 out = out + "-" + variant; 418 } 419 420 return out; 421 } 422 423 const std::string productLocale = getProperty("ro.product.locale", ""); 424 if (!productLocale.empty()) { 425 return productLocale; 426 } 427 428 // If persist.sys.locale and ro.product.locale are missing, 429 // construct a locale value from the individual locale components. 430 const std::string productLanguage = getProperty("ro.product.locale.language", "en"); 431 const std::string productRegion = getProperty("ro.product.locale.region", "US"); 432 433 return productLanguage + "-" + productRegion; 434} 435 436void AndroidRuntime::addOption(const char* optionString, void* extraInfo) 437{ 438 JavaVMOption opt; 439 opt.optionString = optionString; 440 opt.extraInfo = extraInfo; 441 mOptions.add(opt); 442} 443 444/* 445 * Parse a property containing space-separated options that should be 446 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap". 447 * 448 * This will cut up "extraOptsBuf" as we chop it into individual options. 449 * 450 * If "quotingArg" is non-null, it is passed before each extra option in mOptions. 451 * 452 * Adds the strings, if any, to mOptions. 453 */ 454void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg) 455{ 456 char* start = extraOptsBuf; 457 char* end = NULL; 458 while (*start != '\0') { 459 while (*start == ' ') /* skip leading whitespace */ 460 start++; 461 if (*start == '\0') /* was trailing ws, bail */ 462 break; 463 464 end = start+1; 465 while (*end != ' ' && *end != '\0') /* find end of token */ 466 end++; 467 if (*end == ' ') 468 *end++ = '\0'; /* mark end, advance to indicate more */ 469 470 if (quotingArg != NULL) { 471 addOption(quotingArg); 472 } 473 addOption(start); 474 start = end; 475 } 476} 477 478/* 479 * Reads a "property" into "buffer" with a default of "defaultArg". If 480 * the property is non-empty, it is treated as a runtime option such 481 * as "-Xmx32m". 482 * 483 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 484 * 485 * If an argument is found, it is added to mOptions. 486 * 487 * If an option is found, it is added to mOptions and true is 488 * returned. Otherwise false is returned. 489 */ 490bool AndroidRuntime::parseRuntimeOption(const char* property, 491 char* buffer, 492 const char* runtimeArg, 493 const char* defaultArg) 494{ 495 strcpy(buffer, runtimeArg); 496 size_t runtimeArgLen = strlen(runtimeArg); 497 property_get(property, buffer+runtimeArgLen, defaultArg); 498 if (buffer[runtimeArgLen] == '\0') { 499 return false; 500 } 501 addOption(buffer); 502 return true; 503} 504 505/* 506 * Reads a "property" into "buffer". If the property is non-empty, it 507 * is treated as a dex2oat compiler option that should be 508 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none". 509 * 510 * The "compilerArg" is a prefix for the option such as "--compiler-filter=". 511 * 512 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 513 * 514 * If an option is found, it is added to mOptions and true is 515 * returned. Otherwise false is returned. 516 */ 517bool AndroidRuntime::parseCompilerOption(const char* property, 518 char* buffer, 519 const char* compilerArg, 520 const char* quotingArg) 521{ 522 strcpy(buffer, compilerArg); 523 size_t compilerArgLen = strlen(compilerArg); 524 property_get(property, buffer+compilerArgLen, ""); 525 if (buffer[compilerArgLen] == '\0') { 526 return false; 527 } 528 addOption(quotingArg); 529 addOption(buffer); 530 return true; 531} 532 533/* 534 * Reads a "property" into "buffer". If the property is non-empty, it 535 * is treated as a dex2oat compiler runtime option that should be 536 * passed as a quoted option, e.g. "-Ximage-compiler-option 537 * --runtime-arg -Ximage-compiler-option -Xmx32m". 538 * 539 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 540 * 541 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 542 * 543 * If an option is found, it is added to mOptions and true is 544 * returned. Otherwise false is returned. 545 */ 546bool AndroidRuntime::parseCompilerRuntimeOption(const char* property, 547 char* buffer, 548 const char* runtimeArg, 549 const char* quotingArg) 550{ 551 strcpy(buffer, runtimeArg); 552 size_t runtimeArgLen = strlen(runtimeArg); 553 property_get(property, buffer+runtimeArgLen, ""); 554 if (buffer[runtimeArgLen] == '\0') { 555 return false; 556 } 557 addOption(quotingArg); 558 addOption("--runtime-arg"); 559 addOption(quotingArg); 560 addOption(buffer); 561 return true; 562} 563 564/* 565 * Start the Dalvik Virtual Machine. 566 * 567 * Various arguments, most determined by system properties, are passed in. 568 * The "mOptions" vector is updated. 569 * 570 * CAUTION: when adding options in here, be careful not to put the 571 * char buffer inside a nested scope. Adding the buffer to the 572 * options using mOptions.add() does not copy the buffer, so if the 573 * buffer goes out of scope the option may be overwritten. It's best 574 * to put the buffer at the top of the function so that it is more 575 * unlikely that someone will surround it in a scope at a later time 576 * and thus introduce a bug. 577 * 578 * Returns 0 on success. 579 */ 580int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote) 581{ 582 JavaVMInitArgs initArgs; 583 char propBuf[PROPERTY_VALUE_MAX]; 584 char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX]; 585 char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX]; 586 char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 587 char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 588 char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX]; 589 char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX]; 590 char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX]; 591 char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX]; 592 char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX]; 593 char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX]; 594 char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX]; 595 char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX]; 596 char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX]; 597 char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX]; 598 char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX]; 599 char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX]; 600 char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX]; 601 char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 602 char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 603 char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 604 char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 605 char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 606 char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 607 char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 608 char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 609 char dex2oat_isa_variant_key[PROPERTY_KEY_MAX]; 610 char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX]; 611 char dex2oat_isa_features_key[PROPERTY_KEY_MAX]; 612 char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX]; 613 char dex2oatFlagsBuf[PROPERTY_VALUE_MAX]; 614 char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX]; 615 char extraOptsBuf[PROPERTY_VALUE_MAX]; 616 char voldDecryptBuf[PROPERTY_VALUE_MAX]; 617 enum { 618 kEMDefault, 619 kEMIntPortable, 620 kEMIntFast, 621 kEMJitCompiler, 622 } executionMode = kEMDefault; 623 char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX]; 624 char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX]; 625 char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX]; 626 char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX]; 627 char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX]; 628 char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX]; 629 char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX]; 630 631 bool checkJni = false; 632 property_get("dalvik.vm.checkjni", propBuf, ""); 633 if (strcmp(propBuf, "true") == 0) { 634 checkJni = true; 635 } else if (strcmp(propBuf, "false") != 0) { 636 /* property is neither true nor false; fall back on kernel parameter */ 637 property_get("ro.kernel.android.checkjni", propBuf, ""); 638 if (propBuf[0] == '1') { 639 checkJni = true; 640 } 641 } 642 ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF"); 643 if (checkJni) { 644 /* extended JNI checking */ 645 addOption("-Xcheck:jni"); 646 647 /* with -Xcheck:jni, this provides a JNI function call trace */ 648 //addOption("-verbose:jni"); 649 } 650 651 property_get("dalvik.vm.execution-mode", propBuf, ""); 652 if (strcmp(propBuf, "int:portable") == 0) { 653 executionMode = kEMIntPortable; 654 } else if (strcmp(propBuf, "int:fast") == 0) { 655 executionMode = kEMIntFast; 656 } else if (strcmp(propBuf, "int:jit") == 0) { 657 executionMode = kEMJitCompiler; 658 } 659 660 parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:"); 661 662 strcpy(jniOptsBuf, "-Xjniopts:"); 663 if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) { 664 ALOGI("JNI options: '%s'\n", jniOptsBuf); 665 } 666 667 /* route exit() to our handler */ 668 addOption("exit", (void*) runtime_exit); 669 670 /* route fprintf() to our handler */ 671 addOption("vfprintf", (void*) runtime_vfprintf); 672 673 /* register the framework-specific "is sensitive thread" hook */ 674 addOption("sensitiveThread", (void*) runtime_isSensitiveThread); 675 676 /* enable verbose; standard options are { jni, gc, class } */ 677 //addOption("-verbose:jni"); 678 addOption("-verbose:gc"); 679 //addOption("-verbose:class"); 680 681 /* 682 * The default starting and maximum size of the heap. Larger 683 * values should be specified in a product property override. 684 */ 685 parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m"); 686 parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m"); 687 688 parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit="); 689 parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree="); 690 parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree="); 691 parseRuntimeOption("dalvik.vm.heaptargetutilization", 692 heaptargetutilizationOptsBuf, 693 "-XX:HeapTargetUtilization="); 694 695 /* 696 * JIT related options. 697 */ 698 parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:"); 699 parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:"); 700 parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:"); 701 parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:"); 702 property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, ""); 703 if (strcmp(useJitProfilesOptsBuf, "true") == 0) { 704 addOption("-Xjitsaveprofilinginfo"); 705 } 706 parseRuntimeOption("dalvik.vm.jitprithreadweight", 707 jitprithreadweightOptBuf, 708 "-Xjitprithreadweight:"); 709 710 property_get("ro.config.low_ram", propBuf, ""); 711 if (strcmp(propBuf, "true") == 0) { 712 addOption("-XX:LowMemoryMode"); 713 } 714 715 parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:"); 716 parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC="); 717 718 /* 719 * Enable debugging only for apps forked from zygote. 720 * Set suspend=y to pause during VM init and use android ADB transport. 721 */ 722 if (zygote) { 723 addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y"); 724 } 725 726 parseRuntimeOption("dalvik.vm.lockprof.threshold", 727 lockProfThresholdBuf, 728 "-Xlockprofthreshold:"); 729 730 if (executionMode == kEMIntPortable) { 731 addOption("-Xint:portable"); 732 } else if (executionMode == kEMIntFast) { 733 addOption("-Xint:fast"); 734 } else if (executionMode == kEMJitCompiler) { 735 addOption("-Xint:jit"); 736 } 737 738 // If we are booting without the real /data, don't spend time compiling. 739 property_get("vold.decrypt", voldDecryptBuf, ""); 740 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || 741 (strcmp(voldDecryptBuf, "1") == 0)); 742 743 // Extra options for boot.art/boot.oat image generation. 744 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, 745 "-Xms", "-Ximage-compiler-option"); 746 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, 747 "-Xmx", "-Ximage-compiler-option"); 748 if (skip_compilation) { 749 addOption("-Ximage-compiler-option"); 750 addOption("--compiler-filter=verify-none"); 751 } else { 752 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, 753 "--compiler-filter=", "-Ximage-compiler-option"); 754 } 755 756 // Make sure there is a preloaded-classes file. 757 if (!hasFile("/system/etc/preloaded-classes")) { 758 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n", 759 strerror(errno)); 760 return -1; 761 } 762 addOption("-Ximage-compiler-option"); 763 addOption("--image-classes=/system/etc/preloaded-classes"); 764 765 // If there is a compiled-classes file, push it. 766 if (hasFile("/system/etc/compiled-classes")) { 767 addOption("-Ximage-compiler-option"); 768 addOption("--compiled-classes=/system/etc/compiled-classes"); 769 } 770 771 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); 772 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); 773 774 // Extra options for DexClassLoader. 775 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, 776 "-Xms", "-Xcompiler-option"); 777 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, 778 "-Xmx", "-Xcompiler-option"); 779 if (skip_compilation) { 780 addOption("-Xcompiler-option"); 781 addOption("--compiler-filter=verify-none"); 782 783 // We skip compilation when a minimal runtime is brought up for decryption. In that case 784 // /data is temporarily backed by a tmpfs, which is usually small. 785 // If the system image contains prebuilts, they will be relocated into the tmpfs. In this 786 // specific situation it is acceptable to *not* relocate and run out of the prebuilts 787 // directly instead. 788 addOption("--runtime-arg"); 789 addOption("-Xnorelocate"); 790 } else { 791 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, 792 "--compiler-filter=", "-Xcompiler-option"); 793 } 794 parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option"); 795 parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j", 796 "-Ximage-compiler-option"); 797 798 // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to 799 // pass the instruction-set-features/variant as an image-compiler-option. 800 // TODO: Find a better way for the instruction-set. 801#if defined(__arm__) 802 constexpr const char* instruction_set = "arm"; 803#elif defined(__aarch64__) 804 constexpr const char* instruction_set = "arm64"; 805#elif defined(__mips__) && !defined(__LP64__) 806 constexpr const char* instruction_set = "mips"; 807#elif defined(__mips__) && defined(__LP64__) 808 constexpr const char* instruction_set = "mips64"; 809#elif defined(__i386__) 810 constexpr const char* instruction_set = "x86"; 811#elif defined(__x86_64__) 812 constexpr const char* instruction_set = "x86_64"; 813#else 814 constexpr const char* instruction_set = "unknown"; 815#endif 816 // Note: it is OK to reuse the buffer, as the values are exactly the same between 817 // * compiler-option, used for runtime compilation (DexClassLoader) 818 // * image-compiler-option, used for boot-image compilation on device 819 820 // Copy the variant. 821 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set); 822 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 823 "--instruction-set-variant=", "-Ximage-compiler-option"); 824 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 825 "--instruction-set-variant=", "-Xcompiler-option"); 826 // Copy the features. 827 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set); 828 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 829 "--instruction-set-features=", "-Ximage-compiler-option"); 830 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 831 "--instruction-set-features=", "-Xcompiler-option"); 832 833 834 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); 835 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); 836 837 /* extra options; parse this late so it overrides others */ 838 property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); 839 parseExtraOpts(extraOptsBuf, NULL); 840 841 /* Set the properties for locale */ 842 { 843 strcpy(localeOption, "-Duser.locale="); 844 const std::string locale = readLocale(); 845 strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX); 846 addOption(localeOption); 847 } 848 849 // Trace files are stored in /data/misc/trace which is writable only in debug mode. 850 property_get("ro.debuggable", propBuf, "0"); 851 if (strcmp(propBuf, "1") == 0) { 852 property_get("dalvik.vm.method-trace", propBuf, "false"); 853 if (strcmp(propBuf, "true") == 0) { 854 addOption("-Xmethod-trace"); 855 parseRuntimeOption("dalvik.vm.method-trace-file", 856 methodTraceFileBuf, 857 "-Xmethod-trace-file:"); 858 parseRuntimeOption("dalvik.vm.method-trace-file-siz", 859 methodTraceFileSizeBuf, 860 "-Xmethod-trace-file-size:"); 861 property_get("dalvik.vm.method-trace-stream", propBuf, "false"); 862 if (strcmp(propBuf, "true") == 0) { 863 addOption("-Xmethod-trace-stream"); 864 } 865 } 866 } 867 868 // Native bridge library. "0" means that native bridge is disabled. 869 property_get("ro.dalvik.vm.native.bridge", propBuf, ""); 870 if (propBuf[0] == '\0') { 871 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); 872 } else if (strcmp(propBuf, "0") != 0) { 873 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, 874 "-XX:NativeBridge=%s", propBuf); 875 addOption(nativeBridgeLibrary); 876 } 877 878#if defined(__LP64__) 879 const char* cpu_abilist_property_name = "ro.product.cpu.abilist64"; 880#else 881 const char* cpu_abilist_property_name = "ro.product.cpu.abilist32"; 882#endif // defined(__LP64__) 883 property_get(cpu_abilist_property_name, propBuf, ""); 884 if (propBuf[0] == '\0') { 885 ALOGE("%s is not expected to be empty", cpu_abilist_property_name); 886 return -1; 887 } 888 snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf); 889 addOption(cpuAbiListBuf); 890 891 // Dalvik-cache pruning counter. 892 parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf, 893 "-Xzygote-max-boot-retry="); 894 895 /* 896 * When running with debug.generate-debug-info, add --generate-debug-info to 897 * the compiler options so that the boot image, if it is compiled on device, 898 * will include native debugging information. 899 */ 900 property_get("debug.generate-debug-info", propBuf, ""); 901 if (strcmp(propBuf, "true") == 0) { 902 addOption("-Xcompiler-option"); 903 addOption("--generate-debug-info"); 904 addOption("-Ximage-compiler-option"); 905 addOption("--generate-debug-info"); 906 } 907 908 /* 909 * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will 910 * contain the fingerprint and can be parsed. 911 */ 912 parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:"); 913 914 initArgs.version = JNI_VERSION_1_4; 915 initArgs.options = mOptions.editArray(); 916 initArgs.nOptions = mOptions.size(); 917 initArgs.ignoreUnrecognized = JNI_FALSE; 918 919 /* 920 * Initialize the VM. 921 * 922 * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. 923 * If this call succeeds, the VM is ready, and we can start issuing 924 * JNI calls. 925 */ 926 if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { 927 ALOGE("JNI_CreateJavaVM failed\n"); 928 return -1; 929 } 930 931 return 0; 932} 933 934char* AndroidRuntime::toSlashClassName(const char* className) 935{ 936 char* result = strdup(className); 937 for (char* cp = result; *cp != '\0'; cp++) { 938 if (*cp == '.') { 939 *cp = '/'; 940 } 941 } 942 return result; 943} 944 945/** Create a Java string from an ASCII or Latin-1 string */ 946jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { 947 if (!bytes) return NULL; 948 int length = strlen(bytes); 949 jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); 950 if (!buffer) return NULL; 951 jchar* chp = buffer; 952 for (int i = 0; i < length; i++) { 953 *chp++ = *bytes++; 954 } 955 return env->NewString(buffer, length); 956} 957 958 959/* 960 * Start the Android runtime. This involves starting the virtual machine 961 * and calling the "static void main(String[] args)" method in the class 962 * named by "className". 963 * 964 * Passes the main function two arguments, the class name and the specified 965 * options string. 966 */ 967void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote) 968{ 969 ALOGD(">>>>>> START %s uid %d <<<<<<\n", 970 className != NULL ? className : "(unknown)", getuid()); 971 972 static const String8 startSystemServer("start-system-server"); 973 974 /* 975 * 'startSystemServer == true' means runtime is obsolete and not run from 976 * init.rc anymore, so we print out the boot start event here. 977 */ 978 for (size_t i = 0; i < options.size(); ++i) { 979 if (options[i] == startSystemServer) { 980 /* track our progress through the boot sequence */ 981 const int LOG_BOOT_PROGRESS_START = 3000; 982 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); 983 } 984 } 985 986 const char* rootDir = getenv("ANDROID_ROOT"); 987 if (rootDir == NULL) { 988 rootDir = "/system"; 989 if (!hasDir("/system")) { 990 LOG_FATAL("No root directory specified, and /android does not exist."); 991 return; 992 } 993 setenv("ANDROID_ROOT", rootDir, 1); 994 } 995 996 //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); 997 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); 998 999 /* start the virtual machine */ 1000 JniInvocation jni_invocation; 1001 jni_invocation.Init(NULL); 1002 JNIEnv* env; 1003 if (startVm(&mJavaVM, &env, zygote) != 0) { 1004 return; 1005 } 1006 onVmCreated(env); 1007 1008 /* 1009 * Register android functions. 1010 */ 1011 if (startReg(env) < 0) { 1012 ALOGE("Unable to register all android natives\n"); 1013 return; 1014 } 1015 1016 /* 1017 * We want to call main() with a String array with arguments in it. 1018 * At present we have two arguments, the class name and an option string. 1019 * Create an array to hold them. 1020 */ 1021 jclass stringClass; 1022 jobjectArray strArray; 1023 jstring classNameStr; 1024 1025 stringClass = env->FindClass("java/lang/String"); 1026 assert(stringClass != NULL); 1027 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); 1028 assert(strArray != NULL); 1029 classNameStr = env->NewStringUTF(className); 1030 assert(classNameStr != NULL); 1031 env->SetObjectArrayElement(strArray, 0, classNameStr); 1032 1033 for (size_t i = 0; i < options.size(); ++i) { 1034 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); 1035 assert(optionsStr != NULL); 1036 env->SetObjectArrayElement(strArray, i + 1, optionsStr); 1037 } 1038 1039 /* 1040 * Start VM. This thread becomes the main thread of the VM, and will 1041 * not return until the VM exits. 1042 */ 1043 char* slashClassName = toSlashClassName(className); 1044 jclass startClass = env->FindClass(slashClassName); 1045 if (startClass == NULL) { 1046 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); 1047 /* keep going */ 1048 } else { 1049 jmethodID startMeth = env->GetStaticMethodID(startClass, "main", 1050 "([Ljava/lang/String;)V"); 1051 if (startMeth == NULL) { 1052 ALOGE("JavaVM unable to find main() in '%s'\n", className); 1053 /* keep going */ 1054 } else { 1055 env->CallStaticVoidMethod(startClass, startMeth, strArray); 1056 1057#if 0 1058 if (env->ExceptionCheck()) 1059 threadExitUncaughtException(env); 1060#endif 1061 } 1062 } 1063 free(slashClassName); 1064 1065 ALOGD("Shutting down VM\n"); 1066 if (mJavaVM->DetachCurrentThread() != JNI_OK) 1067 ALOGW("Warning: unable to detach main thread\n"); 1068 if (mJavaVM->DestroyJavaVM() != 0) 1069 ALOGW("Warning: VM did not shut down cleanly\n"); 1070} 1071 1072void AndroidRuntime::exit(int code) 1073{ 1074 if (mExitWithoutCleanup) { 1075 ALOGI("VM exiting with result code %d, cleanup skipped.", code); 1076 ::_exit(code); 1077 } else { 1078 ALOGI("VM exiting with result code %d.", code); 1079 onExit(code); 1080 ::exit(code); 1081 } 1082} 1083 1084void AndroidRuntime::onVmCreated(JNIEnv* env) 1085{ 1086 // If AndroidRuntime had anything to do here, we'd have done it in 'start'. 1087} 1088 1089/* 1090 * Get the JNIEnv pointer for this thread. 1091 * 1092 * Returns NULL if the slot wasn't allocated or populated. 1093 */ 1094/*static*/ JNIEnv* AndroidRuntime::getJNIEnv() 1095{ 1096 JNIEnv* env; 1097 JavaVM* vm = AndroidRuntime::getJavaVM(); 1098 assert(vm != NULL); 1099 1100 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) 1101 return NULL; 1102 return env; 1103} 1104 1105/* 1106 * Makes the current thread visible to the VM. 1107 * 1108 * The JNIEnv pointer returned is only valid for the current thread, and 1109 * thus must be tucked into thread-local storage. 1110 */ 1111static int javaAttachThread(const char* threadName, JNIEnv** pEnv) 1112{ 1113 JavaVMAttachArgs args; 1114 JavaVM* vm; 1115 jint result; 1116 1117 vm = AndroidRuntime::getJavaVM(); 1118 assert(vm != NULL); 1119 1120 args.version = JNI_VERSION_1_4; 1121 args.name = (char*) threadName; 1122 args.group = NULL; 1123 1124 result = vm->AttachCurrentThread(pEnv, (void*) &args); 1125 if (result != JNI_OK) 1126 ALOGI("NOTE: attach of thread '%s' failed\n", threadName); 1127 1128 return result; 1129} 1130 1131/* 1132 * Detach the current thread from the set visible to the VM. 1133 */ 1134static int javaDetachThread(void) 1135{ 1136 JavaVM* vm; 1137 jint result; 1138 1139 vm = AndroidRuntime::getJavaVM(); 1140 assert(vm != NULL); 1141 1142 result = vm->DetachCurrentThread(); 1143 if (result != JNI_OK) 1144 ALOGE("ERROR: thread detach failed\n"); 1145 return result; 1146} 1147 1148/* 1149 * When starting a native thread that will be visible from the VM, we 1150 * bounce through this to get the right attach/detach action. 1151 * Note that this function calls free(args) 1152 */ 1153/*static*/ int AndroidRuntime::javaThreadShell(void* args) { 1154 void* start = ((void**)args)[0]; 1155 void* userData = ((void **)args)[1]; 1156 char* name = (char*) ((void **)args)[2]; // we own this storage 1157 free(args); 1158 JNIEnv* env; 1159 int result; 1160 1161 /* hook us into the VM */ 1162 if (javaAttachThread(name, &env) != JNI_OK) 1163 return -1; 1164 1165 /* start the thread running */ 1166 result = (*(android_thread_func_t)start)(userData); 1167 1168 /* unhook us */ 1169 javaDetachThread(); 1170 free(name); 1171 1172 return result; 1173} 1174 1175/* 1176 * This is invoked from androidCreateThreadEtc() via the callback 1177 * set with androidSetCreateThreadFunc(). 1178 * 1179 * We need to create the new thread in such a way that it gets hooked 1180 * into the VM before it really starts executing. 1181 */ 1182/*static*/ int AndroidRuntime::javaCreateThreadEtc( 1183 android_thread_func_t entryFunction, 1184 void* userData, 1185 const char* threadName, 1186 int32_t threadPriority, 1187 size_t threadStackSize, 1188 android_thread_id_t* threadId) 1189{ 1190 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free 1191 int result; 1192 1193 LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc"); 1194 1195 args[0] = (void*) entryFunction; 1196 args[1] = userData; 1197 args[2] = (void*) strdup(threadName); // javaThreadShell must free 1198 1199 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, 1200 threadName, threadPriority, threadStackSize, threadId); 1201 return result; 1202} 1203 1204/* 1205 * Create a thread that is visible from the VM. 1206 * 1207 * This is called from elsewhere in the library. 1208 */ 1209/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, 1210 void (*start)(void *), void* arg) 1211{ 1212 android_thread_id_t threadId = 0; 1213 javaCreateThreadEtc((android_thread_func_t) start, arg, name, 1214 ANDROID_PRIORITY_DEFAULT, 0, &threadId); 1215 return threadId; 1216} 1217 1218#if 0 1219static void quickTest(void* arg) 1220{ 1221 const char* str = (const char*) arg; 1222 1223 printf("In quickTest: %s\n", str); 1224} 1225#endif 1226 1227#ifdef NDEBUG 1228 #define REG_JNI(name) { name } 1229 struct RegJNIRec { 1230 int (*mProc)(JNIEnv*); 1231 }; 1232#else 1233 #define REG_JNI(name) { name, #name } 1234 struct RegJNIRec { 1235 int (*mProc)(JNIEnv*); 1236 const char* mName; 1237 }; 1238#endif 1239 1240typedef void (*RegJAMProc)(); 1241 1242static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) 1243{ 1244 for (size_t i = 0; i < count; i++) { 1245 if (array[i].mProc(env) < 0) { 1246#ifndef NDEBUG 1247 ALOGD("----------!!! %s failed to load\n", array[i].mName); 1248#endif 1249 return -1; 1250 } 1251 } 1252 return 0; 1253} 1254 1255static const RegJNIRec gRegJNI[] = { 1256 REG_JNI(register_com_android_internal_os_RuntimeInit), 1257 REG_JNI(register_android_os_SystemClock), 1258 REG_JNI(register_android_util_EventLog), 1259 REG_JNI(register_android_util_Log), 1260 REG_JNI(register_android_util_MemoryIntArray), 1261 REG_JNI(register_android_util_PathParser), 1262 REG_JNI(register_android_app_admin_SecurityLog), 1263 REG_JNI(register_android_content_AssetManager), 1264 REG_JNI(register_android_content_StringBlock), 1265 REG_JNI(register_android_content_XmlBlock), 1266 REG_JNI(register_android_text_AndroidCharacter), 1267 REG_JNI(register_android_text_StaticLayout), 1268 REG_JNI(register_android_text_AndroidBidi), 1269 REG_JNI(register_android_view_InputDevice), 1270 REG_JNI(register_android_view_KeyCharacterMap), 1271 REG_JNI(register_android_os_Process), 1272 REG_JNI(register_android_os_SystemProperties), 1273 REG_JNI(register_android_os_Binder), 1274 REG_JNI(register_android_os_Parcel), 1275 REG_JNI(register_android_nio_utils), 1276 REG_JNI(register_android_graphics_Canvas), 1277 REG_JNI(register_android_graphics_Graphics), 1278 REG_JNI(register_android_view_DisplayEventReceiver), 1279 REG_JNI(register_android_view_RenderNode), 1280 REG_JNI(register_android_view_RenderNodeAnimator), 1281 REG_JNI(register_android_view_GraphicBuffer), 1282 REG_JNI(register_android_view_DisplayListCanvas), 1283 REG_JNI(register_android_view_HardwareLayer), 1284 REG_JNI(register_android_view_ThreadedRenderer), 1285 REG_JNI(register_android_view_Surface), 1286 REG_JNI(register_android_view_SurfaceControl), 1287 REG_JNI(register_android_view_SurfaceSession), 1288 REG_JNI(register_android_view_TextureView), 1289 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), 1290 REG_JNI(register_com_google_android_gles_jni_EGLImpl), 1291 REG_JNI(register_com_google_android_gles_jni_GLImpl), 1292 REG_JNI(register_android_opengl_jni_EGL14), 1293 REG_JNI(register_android_opengl_jni_EGLExt), 1294 REG_JNI(register_android_opengl_jni_GLES10), 1295 REG_JNI(register_android_opengl_jni_GLES10Ext), 1296 REG_JNI(register_android_opengl_jni_GLES11), 1297 REG_JNI(register_android_opengl_jni_GLES11Ext), 1298 REG_JNI(register_android_opengl_jni_GLES20), 1299 REG_JNI(register_android_opengl_jni_GLES30), 1300 REG_JNI(register_android_opengl_jni_GLES31), 1301 REG_JNI(register_android_opengl_jni_GLES31Ext), 1302 REG_JNI(register_android_opengl_jni_GLES32), 1303 1304 REG_JNI(register_android_graphics_Bitmap), 1305 REG_JNI(register_android_graphics_BitmapFactory), 1306 REG_JNI(register_android_graphics_BitmapRegionDecoder), 1307 REG_JNI(register_android_graphics_Camera), 1308 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), 1309 REG_JNI(register_android_graphics_CanvasProperty), 1310 REG_JNI(register_android_graphics_ColorFilter), 1311 REG_JNI(register_android_graphics_DrawFilter), 1312 REG_JNI(register_android_graphics_FontFamily), 1313 REG_JNI(register_android_graphics_Interpolator), 1314 REG_JNI(register_android_graphics_LayerRasterizer), 1315 REG_JNI(register_android_graphics_MaskFilter), 1316 REG_JNI(register_android_graphics_Matrix), 1317 REG_JNI(register_android_graphics_Movie), 1318 REG_JNI(register_android_graphics_NinePatch), 1319 REG_JNI(register_android_graphics_Paint), 1320 REG_JNI(register_android_graphics_Path), 1321 REG_JNI(register_android_graphics_PathMeasure), 1322 REG_JNI(register_android_graphics_PathEffect), 1323 REG_JNI(register_android_graphics_Picture), 1324 REG_JNI(register_android_graphics_PorterDuff), 1325 REG_JNI(register_android_graphics_Rasterizer), 1326 REG_JNI(register_android_graphics_Region), 1327 REG_JNI(register_android_graphics_Shader), 1328 REG_JNI(register_android_graphics_SurfaceTexture), 1329 REG_JNI(register_android_graphics_Typeface), 1330 REG_JNI(register_android_graphics_Xfermode), 1331 REG_JNI(register_android_graphics_YuvImage), 1332 REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable), 1333 REG_JNI(register_android_graphics_drawable_VectorDrawable), 1334 REG_JNI(register_android_graphics_pdf_PdfDocument), 1335 REG_JNI(register_android_graphics_pdf_PdfEditor), 1336 REG_JNI(register_android_graphics_pdf_PdfRenderer), 1337 1338 REG_JNI(register_android_database_CursorWindow), 1339 REG_JNI(register_android_database_SQLiteConnection), 1340 REG_JNI(register_android_database_SQLiteGlobal), 1341 REG_JNI(register_android_database_SQLiteDebug), 1342 REG_JNI(register_android_os_Debug), 1343 REG_JNI(register_android_os_FileObserver), 1344 REG_JNI(register_android_os_MessageQueue), 1345 REG_JNI(register_android_os_SELinux), 1346 REG_JNI(register_android_os_Trace), 1347 REG_JNI(register_android_os_UEventObserver), 1348 REG_JNI(register_android_net_LocalSocketImpl), 1349 REG_JNI(register_android_net_NetworkUtils), 1350 REG_JNI(register_android_net_TrafficStats), 1351 REG_JNI(register_android_os_MemoryFile), 1352 REG_JNI(register_com_android_internal_os_Zygote), 1353 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), 1354 REG_JNI(register_android_hardware_Camera), 1355 REG_JNI(register_android_hardware_camera2_CameraMetadata), 1356 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), 1357 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), 1358 REG_JNI(register_android_hardware_camera2_DngCreator), 1359 REG_JNI(register_android_hardware_Radio), 1360 REG_JNI(register_android_hardware_SensorManager), 1361 REG_JNI(register_android_hardware_SerialPort), 1362 REG_JNI(register_android_hardware_SoundTrigger), 1363 REG_JNI(register_android_hardware_UsbDevice), 1364 REG_JNI(register_android_hardware_UsbDeviceConnection), 1365 REG_JNI(register_android_hardware_UsbRequest), 1366 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), 1367 REG_JNI(register_android_hardware_location_ContextHubService), 1368 REG_JNI(register_android_media_AudioRecord), 1369 REG_JNI(register_android_media_AudioSystem), 1370 REG_JNI(register_android_media_AudioTrack), 1371 REG_JNI(register_android_media_JetPlayer), 1372 REG_JNI(register_android_media_RemoteDisplay), 1373 REG_JNI(register_android_media_ToneGenerator), 1374 1375 REG_JNI(register_android_opengl_classes), 1376 REG_JNI(register_android_server_NetworkManagementSocketTagger), 1377 REG_JNI(register_android_ddm_DdmHandleNativeHeap), 1378 REG_JNI(register_android_backup_BackupDataInput), 1379 REG_JNI(register_android_backup_BackupDataOutput), 1380 REG_JNI(register_android_backup_FileBackupHelperBase), 1381 REG_JNI(register_android_backup_BackupHelperDispatcher), 1382 REG_JNI(register_android_app_backup_FullBackup), 1383 REG_JNI(register_android_app_ApplicationLoaders), 1384 REG_JNI(register_android_app_Activity), 1385 REG_JNI(register_android_app_ActivityThread), 1386 REG_JNI(register_android_app_NativeActivity), 1387 REG_JNI(register_android_util_jar_StrictJarFile), 1388 REG_JNI(register_android_view_InputChannel), 1389 REG_JNI(register_android_view_InputEventReceiver), 1390 REG_JNI(register_android_view_InputEventSender), 1391 REG_JNI(register_android_view_InputQueue), 1392 REG_JNI(register_android_view_KeyEvent), 1393 REG_JNI(register_android_view_MotionEvent), 1394 REG_JNI(register_android_view_PointerIcon), 1395 REG_JNI(register_android_view_VelocityTracker), 1396 1397 REG_JNI(register_android_content_res_ObbScanner), 1398 REG_JNI(register_android_content_res_Configuration), 1399 1400 REG_JNI(register_android_animation_PropertyValuesHolder), 1401 REG_JNI(register_com_android_internal_content_NativeLibraryHelper), 1402 REG_JNI(register_com_android_internal_net_NetworkStatsFactory), 1403 1404}; 1405 1406/* 1407 * Register android native functions with the VM. 1408 */ 1409/*static*/ int AndroidRuntime::startReg(JNIEnv* env) 1410{ 1411 ATRACE_NAME("RegisterAndroidNatives"); 1412 /* 1413 * This hook causes all future threads created in this process to be 1414 * attached to the JavaVM. (This needs to go away in favor of JNI 1415 * Attach calls.) 1416 */ 1417 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); 1418 1419 ALOGV("--- registering native functions ---\n"); 1420 1421 /* 1422 * Every "register" function calls one or more things that return 1423 * a local reference (e.g. FindClass). Because we haven't really 1424 * started the VM yet, they're all getting stored in the base frame 1425 * and never released. Use Push/Pop to manage the storage. 1426 */ 1427 env->PushLocalFrame(200); 1428 1429 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { 1430 env->PopLocalFrame(NULL); 1431 return -1; 1432 } 1433 env->PopLocalFrame(NULL); 1434 1435 //createJavaThread("fubar", quickTest, (void*) "hello"); 1436 1437 return 0; 1438} 1439 1440AndroidRuntime* AndroidRuntime::getRuntime() 1441{ 1442 return gCurRuntime; 1443} 1444 1445/** 1446 * Used by surface flinger's DdmConnection to register native methods from 1447 * the framework. 1448 */ 1449extern "C" jint registerFrameworkNatives(JNIEnv* env) { 1450 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1451} 1452} // namespace android 1453