AndroidRuntime.cpp revision 0b711e2c868e58cf2ce8965253b55f98b02c9786
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_GraphicsEnvironment(JNIEnv* env); 160extern int register_android_os_HwBinder(JNIEnv *env); 161extern int register_android_os_HwBlob(JNIEnv *env); 162extern int register_android_os_HwParcel(JNIEnv *env); 163extern int register_android_os_HwRemoteBinder(JNIEnv *env); 164extern int register_android_os_MessageQueue(JNIEnv* env); 165extern int register_android_os_Parcel(JNIEnv* env); 166extern int register_android_os_SELinux(JNIEnv* env); 167extern int register_android_os_VintfObject(JNIEnv *env); 168extern int register_android_os_seccomp(JNIEnv* env); 169extern int register_android_os_SystemProperties(JNIEnv *env); 170extern int register_android_os_SystemClock(JNIEnv* env); 171extern int register_android_os_Trace(JNIEnv* env); 172extern int register_android_os_FileObserver(JNIEnv *env); 173extern int register_android_os_UEventObserver(JNIEnv* env); 174extern int register_android_os_MemoryFile(JNIEnv* env); 175extern int register_android_net_LocalSocketImpl(JNIEnv* env); 176extern int register_android_net_NetworkUtils(JNIEnv* env); 177extern int register_android_net_TrafficStats(JNIEnv* env); 178extern int register_android_text_AndroidCharacter(JNIEnv *env); 179extern int register_android_text_StaticLayout(JNIEnv *env); 180extern int register_android_text_AndroidBidi(JNIEnv *env); 181extern int register_android_opengl_classes(JNIEnv *env); 182extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env); 183extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env); 184extern int register_android_backup_BackupDataInput(JNIEnv *env); 185extern int register_android_backup_BackupDataOutput(JNIEnv *env); 186extern int register_android_backup_FileBackupHelperBase(JNIEnv *env); 187extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env); 188extern int register_android_app_backup_FullBackup(JNIEnv *env); 189extern int register_android_app_Activity(JNIEnv *env); 190extern int register_android_app_ActivityThread(JNIEnv *env); 191extern int register_android_app_ApplicationLoaders(JNIEnv *env); 192extern int register_android_app_NativeActivity(JNIEnv *env); 193extern int register_android_media_RemoteDisplay(JNIEnv *env); 194extern int register_android_util_jar_StrictJarFile(JNIEnv* env); 195extern int register_android_view_InputChannel(JNIEnv* env); 196extern int register_android_view_InputDevice(JNIEnv* env); 197extern int register_android_view_InputEventReceiver(JNIEnv* env); 198extern int register_android_view_InputEventSender(JNIEnv* env); 199extern int register_android_view_InputQueue(JNIEnv* env); 200extern int register_android_view_KeyCharacterMap(JNIEnv *env); 201extern int register_android_view_KeyEvent(JNIEnv* env); 202extern int register_android_view_MotionEvent(JNIEnv* env); 203extern int register_android_view_PointerIcon(JNIEnv* env); 204extern int register_android_view_VelocityTracker(JNIEnv* env); 205extern int register_android_content_res_ObbScanner(JNIEnv* env); 206extern int register_android_content_res_Configuration(JNIEnv* env); 207extern int register_android_animation_PropertyValuesHolder(JNIEnv *env); 208extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env); 209extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env); 210extern int register_com_android_internal_os_PathClassLoaderFactory(JNIEnv* env); 211extern int register_com_android_internal_os_Zygote(JNIEnv *env); 212extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env); 213 214static AndroidRuntime* gCurRuntime = NULL; 215 216/* 217 * Code written in the Java Programming Language calls here from main(). 218 */ 219static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz) 220{ 221 gCurRuntime->onStarted(); 222} 223 224static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz) 225{ 226 gCurRuntime->onZygoteInit(); 227} 228 229static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env, 230 jobject clazz, jboolean exitWithoutCleanup) 231{ 232 gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup); 233} 234 235/* 236 * JNI registration. 237 */ 238 239int register_com_android_internal_os_RuntimeInit(JNIEnv* env) 240{ 241 const JNINativeMethod methods[] = { 242 { "nativeFinishInit", "()V", 243 (void*) com_android_internal_os_RuntimeInit_nativeFinishInit }, 244 { "nativeSetExitWithoutCleanup", "(Z)V", 245 (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup }, 246 }; 247 return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit", 248 methods, NELEM(methods)); 249} 250 251int register_com_android_internal_os_ZygoteInit(JNIEnv* env) 252{ 253 const JNINativeMethod methods[] = { 254 { "nativeZygoteInit", "()V", 255 (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit }, 256 }; 257 return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit", 258 methods, NELEM(methods)); 259} 260 261// ---------------------------------------------------------------------- 262 263/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL; 264 265AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) : 266 mExitWithoutCleanup(false), 267 mArgBlockStart(argBlockStart), 268 mArgBlockLength(argBlockLength) 269{ 270 SkGraphics::Init(); 271 // There is also a global font cache, but its budget is specified by 272 // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT. 273 274 // Pre-allocate enough space to hold a fair number of options. 275 mOptions.setCapacity(20); 276 277 assert(gCurRuntime == NULL); // one per process 278 gCurRuntime = this; 279} 280 281AndroidRuntime::~AndroidRuntime() 282{ 283 SkGraphics::Term(); 284} 285 286/* 287 * Register native methods using JNI. 288 */ 289/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env, 290 const char* className, const JNINativeMethod* gMethods, int numMethods) 291{ 292 return jniRegisterNativeMethods(env, className, gMethods, numMethods); 293} 294 295void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) { 296 if (setProcName) { 297 int len = strlen(argv0); 298 if (len < 15) { 299 pthread_setname_np(pthread_self(), argv0); 300 } else { 301 pthread_setname_np(pthread_self(), argv0 + len - 15); 302 } 303 } 304 memset(mArgBlockStart, 0, mArgBlockLength); 305 strlcpy(mArgBlockStart, argv0, mArgBlockLength); 306} 307 308status_t AndroidRuntime::callMain(const String8& className, jclass clazz, 309 const Vector<String8>& args) 310{ 311 JNIEnv* env; 312 jmethodID methodId; 313 314 ALOGD("Calling main entry %s", className.string()); 315 316 env = getJNIEnv(); 317 if (clazz == NULL || env == NULL) { 318 return UNKNOWN_ERROR; 319 } 320 321 methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V"); 322 if (methodId == NULL) { 323 ALOGE("ERROR: could not find method %s.main(String[])\n", className.string()); 324 return UNKNOWN_ERROR; 325 } 326 327 /* 328 * We want to call main() with a String array with our arguments in it. 329 * Create an array and populate it. 330 */ 331 jclass stringClass; 332 jobjectArray strArray; 333 334 const size_t numArgs = args.size(); 335 stringClass = env->FindClass("java/lang/String"); 336 strArray = env->NewObjectArray(numArgs, stringClass, NULL); 337 338 for (size_t i = 0; i < numArgs; i++) { 339 jstring argStr = env->NewStringUTF(args[i].string()); 340 env->SetObjectArrayElement(strArray, i, argStr); 341 } 342 343 env->CallStaticVoidMethod(clazz, methodId, strArray); 344 return NO_ERROR; 345} 346 347/* 348 * The VM calls this through the "exit" hook. 349 */ 350static void runtime_exit(int code) 351{ 352 gCurRuntime->exit(code); 353} 354 355/* 356 * The VM calls this through the "vfprintf" hook. 357 * 358 * We ignore "fp" and just write the results to the log file. 359 */ 360static void runtime_vfprintf(FILE* fp, const char* format, va_list ap) 361{ 362 LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap); 363} 364 365/** 366 * The VM calls this when mutex contention debugging is enabled to 367 * determine whether or not the blocked thread was a "sensitive thread" 368 * for user responsiveness/smoothess. 369 * 370 * Our policy for this is whether or not we're tracing any StrictMode 371 * events on this thread (which we might've inherited via Binder calls 372 * into us) 373 */ 374static bool runtime_isSensitiveThread() { 375 IPCThreadState* state = IPCThreadState::selfOrNull(); 376 return state && state->getStrictModePolicy() != 0; 377} 378 379static int hasDir(const char* dir) 380{ 381 struct stat s; 382 int res = stat(dir, &s); 383 if (res == 0) { 384 return S_ISDIR(s.st_mode); 385 } 386 return 0; 387} 388 389static bool hasFile(const char* file) { 390 struct stat s; 391 int res = stat(file, &s); 392 if (res == 0) { 393 return S_ISREG(s.st_mode); 394 } 395 return false; 396} 397 398// Convenience wrapper over the property API that returns an 399// std::string. 400std::string getProperty(const char* key, const char* defaultValue) { 401 std::vector<char> temp(PROPERTY_VALUE_MAX); 402 const int len = property_get(key, &temp[0], defaultValue); 403 if (len < 0) { 404 return ""; 405 } 406 return std::string(&temp[0], len); 407} 408 409/* 410 * Read the persistent locale. Inspects the following system properties 411 * (in order) and returns the first non-empty property in the list : 412 * 413 * (1) persist.sys.locale 414 * (2) persist.sys.language/country/localevar (country and localevar are 415 * inspected iff. language is non-empty. 416 * (3) ro.product.locale 417 * (4) ro.product.locale.language/region 418 * 419 * Note that we need to inspect persist.sys.language/country/localevar to 420 * preserve language settings for devices that are upgrading from Lollipop 421 * to M. The same goes for ro.product.locale.language/region as well. 422 */ 423const std::string readLocale() 424{ 425 const std::string locale = getProperty("persist.sys.locale", ""); 426 if (!locale.empty()) { 427 return locale; 428 } 429 430 const std::string language = getProperty("persist.sys.language", ""); 431 if (!language.empty()) { 432 const std::string country = getProperty("persist.sys.country", ""); 433 const std::string variant = getProperty("persist.sys.localevar", ""); 434 435 std::string out = language; 436 if (!country.empty()) { 437 out = out + "-" + country; 438 } 439 440 if (!variant.empty()) { 441 out = out + "-" + variant; 442 } 443 444 return out; 445 } 446 447 const std::string productLocale = getProperty("ro.product.locale", ""); 448 if (!productLocale.empty()) { 449 return productLocale; 450 } 451 452 // If persist.sys.locale and ro.product.locale are missing, 453 // construct a locale value from the individual locale components. 454 const std::string productLanguage = getProperty("ro.product.locale.language", "en"); 455 const std::string productRegion = getProperty("ro.product.locale.region", "US"); 456 457 return productLanguage + "-" + productRegion; 458} 459 460void AndroidRuntime::addOption(const char* optionString, void* extraInfo) 461{ 462 JavaVMOption opt; 463 opt.optionString = optionString; 464 opt.extraInfo = extraInfo; 465 mOptions.add(opt); 466} 467 468/* 469 * Parse a property containing space-separated options that should be 470 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap". 471 * 472 * This will cut up "extraOptsBuf" as we chop it into individual options. 473 * 474 * If "quotingArg" is non-null, it is passed before each extra option in mOptions. 475 * 476 * Adds the strings, if any, to mOptions. 477 */ 478void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg) 479{ 480 char* start = extraOptsBuf; 481 char* end = NULL; 482 while (*start != '\0') { 483 while (*start == ' ') /* skip leading whitespace */ 484 start++; 485 if (*start == '\0') /* was trailing ws, bail */ 486 break; 487 488 end = start+1; 489 while (*end != ' ' && *end != '\0') /* find end of token */ 490 end++; 491 if (*end == ' ') 492 *end++ = '\0'; /* mark end, advance to indicate more */ 493 494 if (quotingArg != NULL) { 495 addOption(quotingArg); 496 } 497 addOption(start); 498 start = end; 499 } 500} 501 502/* 503 * Reads a "property" into "buffer" with a default of "defaultArg". If 504 * the property is non-empty, it is treated as a runtime option such 505 * as "-Xmx32m". 506 * 507 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 508 * 509 * If an argument is found, it is added to mOptions. 510 * 511 * If an option is found, it is added to mOptions and true is 512 * returned. Otherwise false is returned. 513 */ 514bool AndroidRuntime::parseRuntimeOption(const char* property, 515 char* buffer, 516 const char* runtimeArg, 517 const char* defaultArg) 518{ 519 strcpy(buffer, runtimeArg); 520 size_t runtimeArgLen = strlen(runtimeArg); 521 property_get(property, buffer+runtimeArgLen, defaultArg); 522 if (buffer[runtimeArgLen] == '\0') { 523 return false; 524 } 525 addOption(buffer); 526 return true; 527} 528 529/* 530 * Reads a "property" into "buffer". If the property is non-empty, it 531 * is treated as a dex2oat compiler option that should be 532 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified". 533 * 534 * The "compilerArg" is a prefix for the option such as "--compiler-filter=". 535 * 536 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 537 * 538 * If an option is found, it is added to mOptions and true is 539 * returned. Otherwise false is returned. 540 */ 541bool AndroidRuntime::parseCompilerOption(const char* property, 542 char* buffer, 543 const char* compilerArg, 544 const char* quotingArg) 545{ 546 strcpy(buffer, compilerArg); 547 size_t compilerArgLen = strlen(compilerArg); 548 property_get(property, buffer+compilerArgLen, ""); 549 if (buffer[compilerArgLen] == '\0') { 550 return false; 551 } 552 addOption(quotingArg); 553 addOption(buffer); 554 return true; 555} 556 557/* 558 * Reads a "property" into "buffer". If the property is non-empty, it 559 * is treated as a dex2oat compiler runtime option that should be 560 * passed as a quoted option, e.g. "-Ximage-compiler-option 561 * --runtime-arg -Ximage-compiler-option -Xmx32m". 562 * 563 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 564 * 565 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 566 * 567 * If an option is found, it is added to mOptions and true is 568 * returned. Otherwise false is returned. 569 */ 570bool AndroidRuntime::parseCompilerRuntimeOption(const char* property, 571 char* buffer, 572 const char* runtimeArg, 573 const char* quotingArg) 574{ 575 strcpy(buffer, runtimeArg); 576 size_t runtimeArgLen = strlen(runtimeArg); 577 property_get(property, buffer+runtimeArgLen, ""); 578 if (buffer[runtimeArgLen] == '\0') { 579 return false; 580 } 581 addOption(quotingArg); 582 addOption("--runtime-arg"); 583 addOption(quotingArg); 584 addOption(buffer); 585 return true; 586} 587 588/* 589 * Start the Dalvik Virtual Machine. 590 * 591 * Various arguments, most determined by system properties, are passed in. 592 * The "mOptions" vector is updated. 593 * 594 * CAUTION: when adding options in here, be careful not to put the 595 * char buffer inside a nested scope. Adding the buffer to the 596 * options using mOptions.add() does not copy the buffer, so if the 597 * buffer goes out of scope the option may be overwritten. It's best 598 * to put the buffer at the top of the function so that it is more 599 * unlikely that someone will surround it in a scope at a later time 600 * and thus introduce a bug. 601 * 602 * Returns 0 on success. 603 */ 604int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote) 605{ 606 JavaVMInitArgs initArgs; 607 char propBuf[PROPERTY_VALUE_MAX]; 608 char stackTraceDirBuf[sizeof("-Xstacktracedir:")-1 + PROPERTY_VALUE_MAX]; 609 char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX]; 610 char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX]; 611 char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 612 char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 613 char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX]; 614 char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX]; 615 char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX]; 616 char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX]; 617 char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX]; 618 char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX]; 619 char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX]; 620 char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX]; 621 char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX]; 622 char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX]; 623 char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX]; 624 char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX]; 625 char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX]; 626 char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX]; 627 char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 628 char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 629 char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 630 char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 631 char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 632 char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 633 char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 634 char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 635 char dex2oat_isa_variant_key[PROPERTY_KEY_MAX]; 636 char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX]; 637 char dex2oat_isa_features_key[PROPERTY_KEY_MAX]; 638 char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX]; 639 char dex2oatFlagsBuf[PROPERTY_VALUE_MAX]; 640 char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX]; 641 char extraOptsBuf[PROPERTY_VALUE_MAX]; 642 char voldDecryptBuf[PROPERTY_VALUE_MAX]; 643 enum { 644 kEMDefault, 645 kEMIntPortable, 646 kEMIntFast, 647 kEMJitCompiler, 648 } executionMode = kEMDefault; 649 char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX]; 650 char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX]; 651 char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX]; 652 char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX]; 653 char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX]; 654 char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX]; 655 char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX]; 656 657 bool checkJni = false; 658 property_get("dalvik.vm.checkjni", propBuf, ""); 659 if (strcmp(propBuf, "true") == 0) { 660 checkJni = true; 661 } else if (strcmp(propBuf, "false") != 0) { 662 /* property is neither true nor false; fall back on kernel parameter */ 663 property_get("ro.kernel.android.checkjni", propBuf, ""); 664 if (propBuf[0] == '1') { 665 checkJni = true; 666 } 667 } 668 ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF"); 669 if (checkJni) { 670 /* extended JNI checking */ 671 addOption("-Xcheck:jni"); 672 673 /* with -Xcheck:jni, this provides a JNI function call trace */ 674 //addOption("-verbose:jni"); 675 } 676 677 property_get("dalvik.vm.execution-mode", propBuf, ""); 678 if (strcmp(propBuf, "int:portable") == 0) { 679 executionMode = kEMIntPortable; 680 } else if (strcmp(propBuf, "int:fast") == 0) { 681 executionMode = kEMIntFast; 682 } else if (strcmp(propBuf, "int:jit") == 0) { 683 executionMode = kEMJitCompiler; 684 } 685 686 // If dalvik.vm.stack-trace-dir is set, it enables the "new" stack trace 687 // dump scheme and a new file is created for each stack dump. If it isn't set, 688 // the old scheme is enabled. 689 if (!parseRuntimeOption("dalvik.vm.stack-trace-dir", stackTraceDirBuf, "-Xstacktracedir:")) { 690 parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:"); 691 } 692 693 strcpy(jniOptsBuf, "-Xjniopts:"); 694 if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) { 695 ALOGI("JNI options: '%s'\n", jniOptsBuf); 696 } 697 698 /* route exit() to our handler */ 699 addOption("exit", (void*) runtime_exit); 700 701 /* route fprintf() to our handler */ 702 addOption("vfprintf", (void*) runtime_vfprintf); 703 704 /* register the framework-specific "is sensitive thread" hook */ 705 addOption("sensitiveThread", (void*) runtime_isSensitiveThread); 706 707 /* enable verbose; standard options are { jni, gc, class } */ 708 //addOption("-verbose:jni"); 709 addOption("-verbose:gc"); 710 //addOption("-verbose:class"); 711 712 /* 713 * The default starting and maximum size of the heap. Larger 714 * values should be specified in a product property override. 715 */ 716 parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m"); 717 parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m"); 718 719 parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit="); 720 parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree="); 721 parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree="); 722 parseRuntimeOption("dalvik.vm.heaptargetutilization", 723 heaptargetutilizationOptsBuf, 724 "-XX:HeapTargetUtilization="); 725 726 /* 727 * JIT related options. 728 */ 729 parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:"); 730 parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:"); 731 parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:"); 732 parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:"); 733 property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, ""); 734 if (strcmp(useJitProfilesOptsBuf, "true") == 0) { 735 addOption("-Xjitsaveprofilinginfo"); 736 } 737 738 parseRuntimeOption("dalvik.vm.jitprithreadweight", 739 jitprithreadweightOptBuf, 740 "-Xjitprithreadweight:"); 741 742 parseRuntimeOption("dalvik.vm.jittransitionweight", 743 jittransitionweightOptBuf, 744 "-Xjittransitionweight:"); 745 746 property_get("ro.config.low_ram", propBuf, ""); 747 if (strcmp(propBuf, "true") == 0) { 748 addOption("-XX:LowMemoryMode"); 749 } 750 751 parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:"); 752 parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC="); 753 754 /* 755 * Enable debugging only for apps forked from zygote. 756 * Set suspend=y to pause during VM init and use android ADB transport. 757 */ 758 if (zygote) { 759 addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y"); 760 } 761 762 parseRuntimeOption("dalvik.vm.lockprof.threshold", 763 lockProfThresholdBuf, 764 "-Xlockprofthreshold:"); 765 766 if (executionMode == kEMIntPortable) { 767 addOption("-Xint:portable"); 768 } else if (executionMode == kEMIntFast) { 769 addOption("-Xint:fast"); 770 } else if (executionMode == kEMJitCompiler) { 771 addOption("-Xint:jit"); 772 } 773 774 // If we are booting without the real /data, don't spend time compiling. 775 property_get("vold.decrypt", voldDecryptBuf, ""); 776 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || 777 (strcmp(voldDecryptBuf, "1") == 0)); 778 779 // Extra options for boot.art/boot.oat image generation. 780 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, 781 "-Xms", "-Ximage-compiler-option"); 782 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, 783 "-Xmx", "-Ximage-compiler-option"); 784 if (skip_compilation) { 785 addOption("-Ximage-compiler-option"); 786 addOption("--compiler-filter=assume-verified"); 787 } else { 788 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, 789 "--compiler-filter=", "-Ximage-compiler-option"); 790 } 791 792 // Make sure there is a preloaded-classes file. 793 if (!hasFile("/system/etc/preloaded-classes")) { 794 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n", 795 strerror(errno)); 796 return -1; 797 } 798 addOption("-Ximage-compiler-option"); 799 addOption("--image-classes=/system/etc/preloaded-classes"); 800 801 // If there is a compiled-classes file, push it. 802 if (hasFile("/system/etc/compiled-classes")) { 803 addOption("-Ximage-compiler-option"); 804 addOption("--compiled-classes=/system/etc/compiled-classes"); 805 } 806 807 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); 808 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); 809 810 // Extra options for DexClassLoader. 811 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, 812 "-Xms", "-Xcompiler-option"); 813 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, 814 "-Xmx", "-Xcompiler-option"); 815 if (skip_compilation) { 816 addOption("-Xcompiler-option"); 817 addOption("--compiler-filter=assume-verified"); 818 819 // We skip compilation when a minimal runtime is brought up for decryption. In that case 820 // /data is temporarily backed by a tmpfs, which is usually small. 821 // If the system image contains prebuilts, they will be relocated into the tmpfs. In this 822 // specific situation it is acceptable to *not* relocate and run out of the prebuilts 823 // directly instead. 824 addOption("--runtime-arg"); 825 addOption("-Xnorelocate"); 826 } else { 827 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, 828 "--compiler-filter=", "-Xcompiler-option"); 829 } 830 parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option"); 831 parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j", 832 "-Ximage-compiler-option"); 833 834 // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to 835 // pass the instruction-set-features/variant as an image-compiler-option. 836 // TODO: Find a better way for the instruction-set. 837#if defined(__arm__) 838 constexpr const char* instruction_set = "arm"; 839#elif defined(__aarch64__) 840 constexpr const char* instruction_set = "arm64"; 841#elif defined(__mips__) && !defined(__LP64__) 842 constexpr const char* instruction_set = "mips"; 843#elif defined(__mips__) && defined(__LP64__) 844 constexpr const char* instruction_set = "mips64"; 845#elif defined(__i386__) 846 constexpr const char* instruction_set = "x86"; 847#elif defined(__x86_64__) 848 constexpr const char* instruction_set = "x86_64"; 849#else 850 constexpr const char* instruction_set = "unknown"; 851#endif 852 // Note: it is OK to reuse the buffer, as the values are exactly the same between 853 // * compiler-option, used for runtime compilation (DexClassLoader) 854 // * image-compiler-option, used for boot-image compilation on device 855 856 // Copy the variant. 857 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set); 858 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 859 "--instruction-set-variant=", "-Ximage-compiler-option"); 860 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 861 "--instruction-set-variant=", "-Xcompiler-option"); 862 // Copy the features. 863 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set); 864 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 865 "--instruction-set-features=", "-Ximage-compiler-option"); 866 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 867 "--instruction-set-features=", "-Xcompiler-option"); 868 869 870 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); 871 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); 872 873 /* extra options; parse this late so it overrides others */ 874 property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); 875 parseExtraOpts(extraOptsBuf, NULL); 876 877 /* Set the properties for locale */ 878 { 879 strcpy(localeOption, "-Duser.locale="); 880 const std::string locale = readLocale(); 881 strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX); 882 addOption(localeOption); 883 } 884 885 // Trace files are stored in /data/misc/trace which is writable only in debug mode. 886 property_get("ro.debuggable", propBuf, "0"); 887 if (strcmp(propBuf, "1") == 0) { 888 property_get("dalvik.vm.method-trace", propBuf, "false"); 889 if (strcmp(propBuf, "true") == 0) { 890 addOption("-Xmethod-trace"); 891 parseRuntimeOption("dalvik.vm.method-trace-file", 892 methodTraceFileBuf, 893 "-Xmethod-trace-file:"); 894 parseRuntimeOption("dalvik.vm.method-trace-file-siz", 895 methodTraceFileSizeBuf, 896 "-Xmethod-trace-file-size:"); 897 property_get("dalvik.vm.method-trace-stream", propBuf, "false"); 898 if (strcmp(propBuf, "true") == 0) { 899 addOption("-Xmethod-trace-stream"); 900 } 901 } 902 } 903 904 // Native bridge library. "0" means that native bridge is disabled. 905 property_get("ro.dalvik.vm.native.bridge", propBuf, ""); 906 if (propBuf[0] == '\0') { 907 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); 908 } else if (strcmp(propBuf, "0") != 0) { 909 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, 910 "-XX:NativeBridge=%s", propBuf); 911 addOption(nativeBridgeLibrary); 912 } 913 914#if defined(__LP64__) 915 const char* cpu_abilist_property_name = "ro.product.cpu.abilist64"; 916#else 917 const char* cpu_abilist_property_name = "ro.product.cpu.abilist32"; 918#endif // defined(__LP64__) 919 property_get(cpu_abilist_property_name, propBuf, ""); 920 if (propBuf[0] == '\0') { 921 ALOGE("%s is not expected to be empty", cpu_abilist_property_name); 922 return -1; 923 } 924 snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf); 925 addOption(cpuAbiListBuf); 926 927 // Dalvik-cache pruning counter. 928 parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf, 929 "-Xzygote-max-boot-retry="); 930 931 /* 932 * When running with debug.generate-debug-info, add --generate-debug-info to 933 * the compiler options so that the boot image, if it is compiled on device, 934 * will include native debugging information. 935 */ 936 property_get("debug.generate-debug-info", propBuf, ""); 937 if (strcmp(propBuf, "true") == 0) { 938 addOption("-Xcompiler-option"); 939 addOption("--generate-debug-info"); 940 addOption("-Ximage-compiler-option"); 941 addOption("--generate-debug-info"); 942 } 943 944 /* 945 * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will 946 * contain the fingerprint and can be parsed. 947 */ 948 parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:"); 949 950 initArgs.version = JNI_VERSION_1_4; 951 initArgs.options = mOptions.editArray(); 952 initArgs.nOptions = mOptions.size(); 953 initArgs.ignoreUnrecognized = JNI_FALSE; 954 955 /* 956 * Initialize the VM. 957 * 958 * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. 959 * If this call succeeds, the VM is ready, and we can start issuing 960 * JNI calls. 961 */ 962 if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { 963 ALOGE("JNI_CreateJavaVM failed\n"); 964 return -1; 965 } 966 967 return 0; 968} 969 970char* AndroidRuntime::toSlashClassName(const char* className) 971{ 972 char* result = strdup(className); 973 for (char* cp = result; *cp != '\0'; cp++) { 974 if (*cp == '.') { 975 *cp = '/'; 976 } 977 } 978 return result; 979} 980 981/** Create a Java string from an ASCII or Latin-1 string */ 982jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { 983 if (!bytes) return NULL; 984 int length = strlen(bytes); 985 jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); 986 if (!buffer) return NULL; 987 jchar* chp = buffer; 988 for (int i = 0; i < length; i++) { 989 *chp++ = *bytes++; 990 } 991 return env->NewString(buffer, length); 992} 993 994 995/* 996 * Start the Android runtime. This involves starting the virtual machine 997 * and calling the "static void main(String[] args)" method in the class 998 * named by "className". 999 * 1000 * Passes the main function two arguments, the class name and the specified 1001 * options string. 1002 */ 1003void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote) 1004{ 1005 ALOGD(">>>>>> START %s uid %d <<<<<<\n", 1006 className != NULL ? className : "(unknown)", getuid()); 1007 1008 static const String8 startSystemServer("start-system-server"); 1009 1010 /* 1011 * 'startSystemServer == true' means runtime is obsolete and not run from 1012 * init.rc anymore, so we print out the boot start event here. 1013 */ 1014 for (size_t i = 0; i < options.size(); ++i) { 1015 if (options[i] == startSystemServer) { 1016 /* track our progress through the boot sequence */ 1017 const int LOG_BOOT_PROGRESS_START = 3000; 1018 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); 1019 } 1020 } 1021 1022 const char* rootDir = getenv("ANDROID_ROOT"); 1023 if (rootDir == NULL) { 1024 rootDir = "/system"; 1025 if (!hasDir("/system")) { 1026 LOG_FATAL("No root directory specified, and /android does not exist."); 1027 return; 1028 } 1029 setenv("ANDROID_ROOT", rootDir, 1); 1030 } 1031 1032 //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); 1033 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); 1034 1035 /* start the virtual machine */ 1036 JniInvocation jni_invocation; 1037 jni_invocation.Init(NULL); 1038 JNIEnv* env; 1039 if (startVm(&mJavaVM, &env, zygote) != 0) { 1040 return; 1041 } 1042 onVmCreated(env); 1043 1044 /* 1045 * Register android functions. 1046 */ 1047 if (startReg(env) < 0) { 1048 ALOGE("Unable to register all android natives\n"); 1049 return; 1050 } 1051 1052 /* 1053 * We want to call main() with a String array with arguments in it. 1054 * At present we have two arguments, the class name and an option string. 1055 * Create an array to hold them. 1056 */ 1057 jclass stringClass; 1058 jobjectArray strArray; 1059 jstring classNameStr; 1060 1061 stringClass = env->FindClass("java/lang/String"); 1062 assert(stringClass != NULL); 1063 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); 1064 assert(strArray != NULL); 1065 classNameStr = env->NewStringUTF(className); 1066 assert(classNameStr != NULL); 1067 env->SetObjectArrayElement(strArray, 0, classNameStr); 1068 1069 for (size_t i = 0; i < options.size(); ++i) { 1070 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); 1071 assert(optionsStr != NULL); 1072 env->SetObjectArrayElement(strArray, i + 1, optionsStr); 1073 } 1074 1075 /* 1076 * Start VM. This thread becomes the main thread of the VM, and will 1077 * not return until the VM exits. 1078 */ 1079 char* slashClassName = toSlashClassName(className); 1080 jclass startClass = env->FindClass(slashClassName); 1081 if (startClass == NULL) { 1082 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); 1083 /* keep going */ 1084 } else { 1085 jmethodID startMeth = env->GetStaticMethodID(startClass, "main", 1086 "([Ljava/lang/String;)V"); 1087 if (startMeth == NULL) { 1088 ALOGE("JavaVM unable to find main() in '%s'\n", className); 1089 /* keep going */ 1090 } else { 1091 env->CallStaticVoidMethod(startClass, startMeth, strArray); 1092 1093#if 0 1094 if (env->ExceptionCheck()) 1095 threadExitUncaughtException(env); 1096#endif 1097 } 1098 } 1099 free(slashClassName); 1100 1101 ALOGD("Shutting down VM\n"); 1102 if (mJavaVM->DetachCurrentThread() != JNI_OK) 1103 ALOGW("Warning: unable to detach main thread\n"); 1104 if (mJavaVM->DestroyJavaVM() != 0) 1105 ALOGW("Warning: VM did not shut down cleanly\n"); 1106} 1107 1108void AndroidRuntime::exit(int code) 1109{ 1110 if (mExitWithoutCleanup) { 1111 ALOGI("VM exiting with result code %d, cleanup skipped.", code); 1112 ::_exit(code); 1113 } else { 1114 ALOGI("VM exiting with result code %d.", code); 1115 onExit(code); 1116 ::exit(code); 1117 } 1118} 1119 1120void AndroidRuntime::onVmCreated(JNIEnv* env) 1121{ 1122 // If AndroidRuntime had anything to do here, we'd have done it in 'start'. 1123} 1124 1125/* 1126 * Get the JNIEnv pointer for this thread. 1127 * 1128 * Returns NULL if the slot wasn't allocated or populated. 1129 */ 1130/*static*/ JNIEnv* AndroidRuntime::getJNIEnv() 1131{ 1132 JNIEnv* env; 1133 JavaVM* vm = AndroidRuntime::getJavaVM(); 1134 assert(vm != NULL); 1135 1136 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) 1137 return NULL; 1138 return env; 1139} 1140 1141/* 1142 * Makes the current thread visible to the VM. 1143 * 1144 * The JNIEnv pointer returned is only valid for the current thread, and 1145 * thus must be tucked into thread-local storage. 1146 */ 1147static int javaAttachThread(const char* threadName, JNIEnv** pEnv) 1148{ 1149 JavaVMAttachArgs args; 1150 JavaVM* vm; 1151 jint result; 1152 1153 vm = AndroidRuntime::getJavaVM(); 1154 assert(vm != NULL); 1155 1156 args.version = JNI_VERSION_1_4; 1157 args.name = (char*) threadName; 1158 args.group = NULL; 1159 1160 result = vm->AttachCurrentThread(pEnv, (void*) &args); 1161 if (result != JNI_OK) 1162 ALOGI("NOTE: attach of thread '%s' failed\n", threadName); 1163 1164 return result; 1165} 1166 1167/* 1168 * Detach the current thread from the set visible to the VM. 1169 */ 1170static int javaDetachThread(void) 1171{ 1172 JavaVM* vm; 1173 jint result; 1174 1175 vm = AndroidRuntime::getJavaVM(); 1176 assert(vm != NULL); 1177 1178 result = vm->DetachCurrentThread(); 1179 if (result != JNI_OK) 1180 ALOGE("ERROR: thread detach failed\n"); 1181 return result; 1182} 1183 1184/* 1185 * When starting a native thread that will be visible from the VM, we 1186 * bounce through this to get the right attach/detach action. 1187 * Note that this function calls free(args) 1188 */ 1189/*static*/ int AndroidRuntime::javaThreadShell(void* args) { 1190 void* start = ((void**)args)[0]; 1191 void* userData = ((void **)args)[1]; 1192 char* name = (char*) ((void **)args)[2]; // we own this storage 1193 free(args); 1194 JNIEnv* env; 1195 int result; 1196 1197 /* hook us into the VM */ 1198 if (javaAttachThread(name, &env) != JNI_OK) 1199 return -1; 1200 1201 /* start the thread running */ 1202 result = (*(android_thread_func_t)start)(userData); 1203 1204 /* unhook us */ 1205 javaDetachThread(); 1206 free(name); 1207 1208 return result; 1209} 1210 1211/* 1212 * This is invoked from androidCreateThreadEtc() via the callback 1213 * set with androidSetCreateThreadFunc(). 1214 * 1215 * We need to create the new thread in such a way that it gets hooked 1216 * into the VM before it really starts executing. 1217 */ 1218/*static*/ int AndroidRuntime::javaCreateThreadEtc( 1219 android_thread_func_t entryFunction, 1220 void* userData, 1221 const char* threadName, 1222 int32_t threadPriority, 1223 size_t threadStackSize, 1224 android_thread_id_t* threadId) 1225{ 1226 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free 1227 int result; 1228 1229 LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc"); 1230 1231 args[0] = (void*) entryFunction; 1232 args[1] = userData; 1233 args[2] = (void*) strdup(threadName); // javaThreadShell must free 1234 1235 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, 1236 threadName, threadPriority, threadStackSize, threadId); 1237 return result; 1238} 1239 1240/* 1241 * Create a thread that is visible from the VM. 1242 * 1243 * This is called from elsewhere in the library. 1244 */ 1245/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, 1246 void (*start)(void *), void* arg) 1247{ 1248 android_thread_id_t threadId = 0; 1249 javaCreateThreadEtc((android_thread_func_t) start, arg, name, 1250 ANDROID_PRIORITY_DEFAULT, 0, &threadId); 1251 return threadId; 1252} 1253 1254#if 0 1255static void quickTest(void* arg) 1256{ 1257 const char* str = (const char*) arg; 1258 1259 printf("In quickTest: %s\n", str); 1260} 1261#endif 1262 1263#ifdef NDEBUG 1264 #define REG_JNI(name) { name } 1265 struct RegJNIRec { 1266 int (*mProc)(JNIEnv*); 1267 }; 1268#else 1269 #define REG_JNI(name) { name, #name } 1270 struct RegJNIRec { 1271 int (*mProc)(JNIEnv*); 1272 const char* mName; 1273 }; 1274#endif 1275 1276typedef void (*RegJAMProc)(); 1277 1278static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) 1279{ 1280 for (size_t i = 0; i < count; i++) { 1281 if (array[i].mProc(env) < 0) { 1282#ifndef NDEBUG 1283 ALOGD("----------!!! %s failed to load\n", array[i].mName); 1284#endif 1285 return -1; 1286 } 1287 } 1288 return 0; 1289} 1290 1291static const RegJNIRec gRegJNI[] = { 1292 REG_JNI(register_com_android_internal_os_RuntimeInit), 1293 REG_JNI(register_com_android_internal_os_ZygoteInit), 1294 REG_JNI(register_android_os_SystemClock), 1295 REG_JNI(register_android_util_EventLog), 1296 REG_JNI(register_android_util_Log), 1297 REG_JNI(register_android_util_MemoryIntArray), 1298 REG_JNI(register_android_util_PathParser), 1299 REG_JNI(register_android_app_admin_SecurityLog), 1300 REG_JNI(register_android_content_AssetManager), 1301 REG_JNI(register_android_content_StringBlock), 1302 REG_JNI(register_android_content_XmlBlock), 1303 REG_JNI(register_android_text_AndroidCharacter), 1304 REG_JNI(register_android_text_StaticLayout), 1305 REG_JNI(register_android_text_AndroidBidi), 1306 REG_JNI(register_android_view_InputDevice), 1307 REG_JNI(register_android_view_KeyCharacterMap), 1308 REG_JNI(register_android_os_Process), 1309 REG_JNI(register_android_os_SystemProperties), 1310 REG_JNI(register_android_os_Binder), 1311 REG_JNI(register_android_os_Parcel), 1312 REG_JNI(register_android_os_HwBinder), 1313 REG_JNI(register_android_os_HwBlob), 1314 REG_JNI(register_android_os_HwParcel), 1315 REG_JNI(register_android_os_HwRemoteBinder), 1316 REG_JNI(register_android_os_VintfObject), 1317 REG_JNI(register_android_nio_utils), 1318 REG_JNI(register_android_graphics_Canvas), 1319 REG_JNI(register_android_graphics_Graphics), 1320 REG_JNI(register_android_view_DisplayEventReceiver), 1321 REG_JNI(register_android_view_RenderNode), 1322 REG_JNI(register_android_view_RenderNodeAnimator), 1323 REG_JNI(register_android_view_GraphicBuffer), 1324 REG_JNI(register_android_view_DisplayListCanvas), 1325 REG_JNI(register_android_view_HardwareLayer), 1326 REG_JNI(register_android_view_ThreadedRenderer), 1327 REG_JNI(register_android_view_Surface), 1328 REG_JNI(register_android_view_SurfaceControl), 1329 REG_JNI(register_android_view_SurfaceSession), 1330 REG_JNI(register_android_view_TextureView), 1331 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), 1332 REG_JNI(register_com_google_android_gles_jni_EGLImpl), 1333 REG_JNI(register_com_google_android_gles_jni_GLImpl), 1334 REG_JNI(register_android_opengl_jni_EGL14), 1335 REG_JNI(register_android_opengl_jni_EGLExt), 1336 REG_JNI(register_android_opengl_jni_GLES10), 1337 REG_JNI(register_android_opengl_jni_GLES10Ext), 1338 REG_JNI(register_android_opengl_jni_GLES11), 1339 REG_JNI(register_android_opengl_jni_GLES11Ext), 1340 REG_JNI(register_android_opengl_jni_GLES20), 1341 REG_JNI(register_android_opengl_jni_GLES30), 1342 REG_JNI(register_android_opengl_jni_GLES31), 1343 REG_JNI(register_android_opengl_jni_GLES31Ext), 1344 REG_JNI(register_android_opengl_jni_GLES32), 1345 1346 REG_JNI(register_android_graphics_Bitmap), 1347 REG_JNI(register_android_graphics_BitmapFactory), 1348 REG_JNI(register_android_graphics_BitmapRegionDecoder), 1349 REG_JNI(register_android_graphics_Camera), 1350 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), 1351 REG_JNI(register_android_graphics_CanvasProperty), 1352 REG_JNI(register_android_graphics_ColorFilter), 1353 REG_JNI(register_android_graphics_DrawFilter), 1354 REG_JNI(register_android_graphics_FontFamily), 1355 REG_JNI(register_android_graphics_Interpolator), 1356 REG_JNI(register_android_graphics_LayerRasterizer), 1357 REG_JNI(register_android_graphics_MaskFilter), 1358 REG_JNI(register_android_graphics_Matrix), 1359 REG_JNI(register_android_graphics_Movie), 1360 REG_JNI(register_android_graphics_NinePatch), 1361 REG_JNI(register_android_graphics_Paint), 1362 REG_JNI(register_android_graphics_Path), 1363 REG_JNI(register_android_graphics_PathMeasure), 1364 REG_JNI(register_android_graphics_PathEffect), 1365 REG_JNI(register_android_graphics_Picture), 1366 REG_JNI(register_android_graphics_PorterDuff), 1367 REG_JNI(register_android_graphics_Rasterizer), 1368 REG_JNI(register_android_graphics_Region), 1369 REG_JNI(register_android_graphics_Shader), 1370 REG_JNI(register_android_graphics_SurfaceTexture), 1371 REG_JNI(register_android_graphics_Typeface), 1372 REG_JNI(register_android_graphics_Xfermode), 1373 REG_JNI(register_android_graphics_YuvImage), 1374 REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable), 1375 REG_JNI(register_android_graphics_drawable_VectorDrawable), 1376 REG_JNI(register_android_graphics_pdf_PdfDocument), 1377 REG_JNI(register_android_graphics_pdf_PdfEditor), 1378 REG_JNI(register_android_graphics_pdf_PdfRenderer), 1379 1380 REG_JNI(register_android_database_CursorWindow), 1381 REG_JNI(register_android_database_SQLiteConnection), 1382 REG_JNI(register_android_database_SQLiteGlobal), 1383 REG_JNI(register_android_database_SQLiteDebug), 1384 REG_JNI(register_android_os_Debug), 1385 REG_JNI(register_android_os_FileObserver), 1386 REG_JNI(register_android_os_GraphicsEnvironment), 1387 REG_JNI(register_android_os_MessageQueue), 1388 REG_JNI(register_android_os_SELinux), 1389 REG_JNI(register_android_os_seccomp), 1390 REG_JNI(register_android_os_Trace), 1391 REG_JNI(register_android_os_UEventObserver), 1392 REG_JNI(register_android_net_LocalSocketImpl), 1393 REG_JNI(register_android_net_NetworkUtils), 1394 REG_JNI(register_android_net_TrafficStats), 1395 REG_JNI(register_android_os_MemoryFile), 1396 REG_JNI(register_com_android_internal_os_PathClassLoaderFactory), 1397 REG_JNI(register_com_android_internal_os_Zygote), 1398 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), 1399 REG_JNI(register_android_hardware_Camera), 1400 REG_JNI(register_android_hardware_camera2_CameraMetadata), 1401 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), 1402 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), 1403 REG_JNI(register_android_hardware_camera2_DngCreator), 1404 REG_JNI(register_android_hardware_Radio), 1405 REG_JNI(register_android_hardware_SensorManager), 1406 REG_JNI(register_android_hardware_SerialPort), 1407 REG_JNI(register_android_hardware_SoundTrigger), 1408 REG_JNI(register_android_hardware_UsbDevice), 1409 REG_JNI(register_android_hardware_UsbDeviceConnection), 1410 REG_JNI(register_android_hardware_UsbRequest), 1411 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), 1412 REG_JNI(register_android_hardware_location_ContextHubService), 1413 REG_JNI(register_android_media_AudioRecord), 1414 REG_JNI(register_android_media_AudioSystem), 1415 REG_JNI(register_android_media_AudioTrack), 1416 REG_JNI(register_android_media_JetPlayer), 1417 REG_JNI(register_android_media_RemoteDisplay), 1418 REG_JNI(register_android_media_ToneGenerator), 1419 1420 REG_JNI(register_android_opengl_classes), 1421 REG_JNI(register_android_server_NetworkManagementSocketTagger), 1422 REG_JNI(register_android_ddm_DdmHandleNativeHeap), 1423 REG_JNI(register_android_backup_BackupDataInput), 1424 REG_JNI(register_android_backup_BackupDataOutput), 1425 REG_JNI(register_android_backup_FileBackupHelperBase), 1426 REG_JNI(register_android_backup_BackupHelperDispatcher), 1427 REG_JNI(register_android_app_backup_FullBackup), 1428 REG_JNI(register_android_app_Activity), 1429 REG_JNI(register_android_app_ActivityThread), 1430 REG_JNI(register_android_app_ApplicationLoaders), 1431 REG_JNI(register_android_app_NativeActivity), 1432 REG_JNI(register_android_util_jar_StrictJarFile), 1433 REG_JNI(register_android_view_InputChannel), 1434 REG_JNI(register_android_view_InputEventReceiver), 1435 REG_JNI(register_android_view_InputEventSender), 1436 REG_JNI(register_android_view_InputQueue), 1437 REG_JNI(register_android_view_KeyEvent), 1438 REG_JNI(register_android_view_MotionEvent), 1439 REG_JNI(register_android_view_PointerIcon), 1440 REG_JNI(register_android_view_VelocityTracker), 1441 1442 REG_JNI(register_android_content_res_ObbScanner), 1443 REG_JNI(register_android_content_res_Configuration), 1444 1445 REG_JNI(register_android_animation_PropertyValuesHolder), 1446 REG_JNI(register_com_android_internal_content_NativeLibraryHelper), 1447 REG_JNI(register_com_android_internal_net_NetworkStatsFactory), 1448 1449}; 1450 1451/* 1452 * Register android native functions with the VM. 1453 */ 1454/*static*/ int AndroidRuntime::startReg(JNIEnv* env) 1455{ 1456 ATRACE_NAME("RegisterAndroidNatives"); 1457 /* 1458 * This hook causes all future threads created in this process to be 1459 * attached to the JavaVM. (This needs to go away in favor of JNI 1460 * Attach calls.) 1461 */ 1462 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); 1463 1464 ALOGV("--- registering native functions ---\n"); 1465 1466 /* 1467 * Every "register" function calls one or more things that return 1468 * a local reference (e.g. FindClass). Because we haven't really 1469 * started the VM yet, they're all getting stored in the base frame 1470 * and never released. Use Push/Pop to manage the storage. 1471 */ 1472 env->PushLocalFrame(200); 1473 1474 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { 1475 env->PopLocalFrame(NULL); 1476 return -1; 1477 } 1478 env->PopLocalFrame(NULL); 1479 1480 //createJavaThread("fubar", quickTest, (void*) "hello"); 1481 1482 return 0; 1483} 1484 1485AndroidRuntime* AndroidRuntime::getRuntime() 1486{ 1487 return gCurRuntime; 1488} 1489 1490/** 1491 * Used by surface flinger's DdmConnection to register native methods from 1492 * the framework. 1493 */ 1494extern "C" jint registerFrameworkNatives(JNIEnv* env) { 1495 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1496} 1497} // namespace android 1498