AndroidRuntime.cpp revision 4f8a375958c1284c871cbb73776153e423a96298
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_VintfRuntimeInfo(JNIEnv *env); 169extern int register_android_os_seccomp(JNIEnv* env); 170extern int register_android_os_SystemProperties(JNIEnv *env); 171extern int register_android_os_SystemClock(JNIEnv* env); 172extern int register_android_os_Trace(JNIEnv* env); 173extern int register_android_os_FileObserver(JNIEnv *env); 174extern int register_android_os_UEventObserver(JNIEnv* env); 175extern int register_android_os_MemoryFile(JNIEnv* env); 176extern int register_android_net_LocalSocketImpl(JNIEnv* env); 177extern int register_android_net_NetworkUtils(JNIEnv* env); 178extern int register_android_net_TrafficStats(JNIEnv* env); 179extern int register_android_text_AndroidCharacter(JNIEnv *env); 180extern int register_android_text_StaticLayout(JNIEnv *env); 181extern int register_android_text_AndroidBidi(JNIEnv *env); 182extern int register_android_opengl_classes(JNIEnv *env); 183extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env); 184extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env); 185extern int register_android_backup_BackupDataInput(JNIEnv *env); 186extern int register_android_backup_BackupDataOutput(JNIEnv *env); 187extern int register_android_backup_FileBackupHelperBase(JNIEnv *env); 188extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env); 189extern int register_android_app_backup_FullBackup(JNIEnv *env); 190extern int register_android_app_Activity(JNIEnv *env); 191extern int register_android_app_ActivityThread(JNIEnv *env); 192extern int register_android_app_ApplicationLoaders(JNIEnv *env); 193extern int register_android_app_NativeActivity(JNIEnv *env); 194extern int register_android_media_RemoteDisplay(JNIEnv *env); 195extern int register_android_util_jar_StrictJarFile(JNIEnv* env); 196extern int register_android_view_InputChannel(JNIEnv* env); 197extern int register_android_view_InputDevice(JNIEnv* env); 198extern int register_android_view_InputEventReceiver(JNIEnv* env); 199extern int register_android_view_InputEventSender(JNIEnv* env); 200extern int register_android_view_InputQueue(JNIEnv* env); 201extern int register_android_view_KeyCharacterMap(JNIEnv *env); 202extern int register_android_view_KeyEvent(JNIEnv* env); 203extern int register_android_view_MotionEvent(JNIEnv* env); 204extern int register_android_view_PointerIcon(JNIEnv* env); 205extern int register_android_view_VelocityTracker(JNIEnv* env); 206extern int register_android_content_res_ObbScanner(JNIEnv* env); 207extern int register_android_content_res_Configuration(JNIEnv* env); 208extern int register_android_animation_PropertyValuesHolder(JNIEnv *env); 209extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env); 210extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env); 211extern int register_com_android_internal_os_PathClassLoaderFactory(JNIEnv* env); 212extern int register_com_android_internal_os_Zygote(JNIEnv *env); 213extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env); 214 215static AndroidRuntime* gCurRuntime = NULL; 216 217/* 218 * Code written in the Java Programming Language calls here from main(). 219 */ 220static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz) 221{ 222 gCurRuntime->onStarted(); 223} 224 225static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz) 226{ 227 gCurRuntime->onZygoteInit(); 228} 229 230static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env, 231 jobject clazz, jboolean exitWithoutCleanup) 232{ 233 gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup); 234} 235 236/* 237 * JNI registration. 238 */ 239 240int register_com_android_internal_os_RuntimeInit(JNIEnv* env) 241{ 242 const JNINativeMethod methods[] = { 243 { "nativeFinishInit", "()V", 244 (void*) com_android_internal_os_RuntimeInit_nativeFinishInit }, 245 { "nativeSetExitWithoutCleanup", "(Z)V", 246 (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup }, 247 }; 248 return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit", 249 methods, NELEM(methods)); 250} 251 252int register_com_android_internal_os_ZygoteInit(JNIEnv* env) 253{ 254 const JNINativeMethod methods[] = { 255 { "nativeZygoteInit", "()V", 256 (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit }, 257 }; 258 return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit", 259 methods, NELEM(methods)); 260} 261 262// ---------------------------------------------------------------------- 263 264/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL; 265 266AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) : 267 mExitWithoutCleanup(false), 268 mArgBlockStart(argBlockStart), 269 mArgBlockLength(argBlockLength) 270{ 271 SkGraphics::Init(); 272 // There is also a global font cache, but its budget is specified by 273 // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT. 274 275 // Pre-allocate enough space to hold a fair number of options. 276 mOptions.setCapacity(20); 277 278 assert(gCurRuntime == NULL); // one per process 279 gCurRuntime = this; 280} 281 282AndroidRuntime::~AndroidRuntime() 283{ 284 SkGraphics::Term(); 285} 286 287/* 288 * Register native methods using JNI. 289 */ 290/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env, 291 const char* className, const JNINativeMethod* gMethods, int numMethods) 292{ 293 return jniRegisterNativeMethods(env, className, gMethods, numMethods); 294} 295 296void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) { 297 if (setProcName) { 298 int len = strlen(argv0); 299 if (len < 15) { 300 pthread_setname_np(pthread_self(), argv0); 301 } else { 302 pthread_setname_np(pthread_self(), argv0 + len - 15); 303 } 304 } 305 memset(mArgBlockStart, 0, mArgBlockLength); 306 strlcpy(mArgBlockStart, argv0, mArgBlockLength); 307} 308 309status_t AndroidRuntime::callMain(const String8& className, jclass clazz, 310 const Vector<String8>& args) 311{ 312 JNIEnv* env; 313 jmethodID methodId; 314 315 ALOGD("Calling main entry %s", className.string()); 316 317 env = getJNIEnv(); 318 if (clazz == NULL || env == NULL) { 319 return UNKNOWN_ERROR; 320 } 321 322 methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V"); 323 if (methodId == NULL) { 324 ALOGE("ERROR: could not find method %s.main(String[])\n", className.string()); 325 return UNKNOWN_ERROR; 326 } 327 328 /* 329 * We want to call main() with a String array with our arguments in it. 330 * Create an array and populate it. 331 */ 332 jclass stringClass; 333 jobjectArray strArray; 334 335 const size_t numArgs = args.size(); 336 stringClass = env->FindClass("java/lang/String"); 337 strArray = env->NewObjectArray(numArgs, stringClass, NULL); 338 339 for (size_t i = 0; i < numArgs; i++) { 340 jstring argStr = env->NewStringUTF(args[i].string()); 341 env->SetObjectArrayElement(strArray, i, argStr); 342 } 343 344 env->CallStaticVoidMethod(clazz, methodId, strArray); 345 return NO_ERROR; 346} 347 348/* 349 * The VM calls this through the "exit" hook. 350 */ 351static void runtime_exit(int code) 352{ 353 gCurRuntime->exit(code); 354} 355 356/* 357 * The VM calls this through the "vfprintf" hook. 358 * 359 * We ignore "fp" and just write the results to the log file. 360 */ 361static void runtime_vfprintf(FILE* fp, const char* format, va_list ap) 362{ 363 LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap); 364} 365 366/** 367 * The VM calls this when mutex contention debugging is enabled to 368 * determine whether or not the blocked thread was a "sensitive thread" 369 * for user responsiveness/smoothess. 370 * 371 * Our policy for this is whether or not we're tracing any StrictMode 372 * events on this thread (which we might've inherited via Binder calls 373 * into us) 374 */ 375static bool runtime_isSensitiveThread() { 376 IPCThreadState* state = IPCThreadState::selfOrNull(); 377 return state && state->getStrictModePolicy() != 0; 378} 379 380static int hasDir(const char* dir) 381{ 382 struct stat s; 383 int res = stat(dir, &s); 384 if (res == 0) { 385 return S_ISDIR(s.st_mode); 386 } 387 return 0; 388} 389 390static bool hasFile(const char* file) { 391 struct stat s; 392 int res = stat(file, &s); 393 if (res == 0) { 394 return S_ISREG(s.st_mode); 395 } 396 return false; 397} 398 399// Convenience wrapper over the property API that returns an 400// std::string. 401std::string getProperty(const char* key, const char* defaultValue) { 402 std::vector<char> temp(PROPERTY_VALUE_MAX); 403 const int len = property_get(key, &temp[0], defaultValue); 404 if (len < 0) { 405 return ""; 406 } 407 return std::string(&temp[0], len); 408} 409 410/* 411 * Read the persistent locale. Inspects the following system properties 412 * (in order) and returns the first non-empty property in the list : 413 * 414 * (1) persist.sys.locale 415 * (2) persist.sys.language/country/localevar (country and localevar are 416 * inspected iff. language is non-empty. 417 * (3) ro.product.locale 418 * (4) ro.product.locale.language/region 419 * 420 * Note that we need to inspect persist.sys.language/country/localevar to 421 * preserve language settings for devices that are upgrading from Lollipop 422 * to M. The same goes for ro.product.locale.language/region as well. 423 */ 424const std::string readLocale() 425{ 426 const std::string locale = getProperty("persist.sys.locale", ""); 427 if (!locale.empty()) { 428 return locale; 429 } 430 431 const std::string language = getProperty("persist.sys.language", ""); 432 if (!language.empty()) { 433 const std::string country = getProperty("persist.sys.country", ""); 434 const std::string variant = getProperty("persist.sys.localevar", ""); 435 436 std::string out = language; 437 if (!country.empty()) { 438 out = out + "-" + country; 439 } 440 441 if (!variant.empty()) { 442 out = out + "-" + variant; 443 } 444 445 return out; 446 } 447 448 const std::string productLocale = getProperty("ro.product.locale", ""); 449 if (!productLocale.empty()) { 450 return productLocale; 451 } 452 453 // If persist.sys.locale and ro.product.locale are missing, 454 // construct a locale value from the individual locale components. 455 const std::string productLanguage = getProperty("ro.product.locale.language", "en"); 456 const std::string productRegion = getProperty("ro.product.locale.region", "US"); 457 458 return productLanguage + "-" + productRegion; 459} 460 461void AndroidRuntime::addOption(const char* optionString, void* extraInfo) 462{ 463 JavaVMOption opt; 464 opt.optionString = optionString; 465 opt.extraInfo = extraInfo; 466 mOptions.add(opt); 467} 468 469/* 470 * Parse a property containing space-separated options that should be 471 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap". 472 * 473 * This will cut up "extraOptsBuf" as we chop it into individual options. 474 * 475 * If "quotingArg" is non-null, it is passed before each extra option in mOptions. 476 * 477 * Adds the strings, if any, to mOptions. 478 */ 479void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg) 480{ 481 char* start = extraOptsBuf; 482 char* end = NULL; 483 while (*start != '\0') { 484 while (*start == ' ') /* skip leading whitespace */ 485 start++; 486 if (*start == '\0') /* was trailing ws, bail */ 487 break; 488 489 end = start+1; 490 while (*end != ' ' && *end != '\0') /* find end of token */ 491 end++; 492 if (*end == ' ') 493 *end++ = '\0'; /* mark end, advance to indicate more */ 494 495 if (quotingArg != NULL) { 496 addOption(quotingArg); 497 } 498 addOption(start); 499 start = end; 500 } 501} 502 503/* 504 * Reads a "property" into "buffer" with a default of "defaultArg". If 505 * the property is non-empty, it is treated as a runtime option such 506 * as "-Xmx32m". 507 * 508 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 509 * 510 * If an argument is found, it is added to mOptions. 511 * 512 * If an option is found, it is added to mOptions and true is 513 * returned. Otherwise false is returned. 514 */ 515bool AndroidRuntime::parseRuntimeOption(const char* property, 516 char* buffer, 517 const char* runtimeArg, 518 const char* defaultArg) 519{ 520 strcpy(buffer, runtimeArg); 521 size_t runtimeArgLen = strlen(runtimeArg); 522 property_get(property, buffer+runtimeArgLen, defaultArg); 523 if (buffer[runtimeArgLen] == '\0') { 524 return false; 525 } 526 addOption(buffer); 527 return true; 528} 529 530/* 531 * Reads a "property" into "buffer". If the property is non-empty, it 532 * is treated as a dex2oat compiler option that should be 533 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified". 534 * 535 * The "compilerArg" is a prefix for the option such as "--compiler-filter=". 536 * 537 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 538 * 539 * If an option is found, it is added to mOptions and true is 540 * returned. Otherwise false is returned. 541 */ 542bool AndroidRuntime::parseCompilerOption(const char* property, 543 char* buffer, 544 const char* compilerArg, 545 const char* quotingArg) 546{ 547 strcpy(buffer, compilerArg); 548 size_t compilerArgLen = strlen(compilerArg); 549 property_get(property, buffer+compilerArgLen, ""); 550 if (buffer[compilerArgLen] == '\0') { 551 return false; 552 } 553 addOption(quotingArg); 554 addOption(buffer); 555 return true; 556} 557 558/* 559 * Reads a "property" into "buffer". If the property is non-empty, it 560 * is treated as a dex2oat compiler runtime option that should be 561 * passed as a quoted option, e.g. "-Ximage-compiler-option 562 * --runtime-arg -Ximage-compiler-option -Xmx32m". 563 * 564 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 565 * 566 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 567 * 568 * If an option is found, it is added to mOptions and true is 569 * returned. Otherwise false is returned. 570 */ 571bool AndroidRuntime::parseCompilerRuntimeOption(const char* property, 572 char* buffer, 573 const char* runtimeArg, 574 const char* quotingArg) 575{ 576 strcpy(buffer, runtimeArg); 577 size_t runtimeArgLen = strlen(runtimeArg); 578 property_get(property, buffer+runtimeArgLen, ""); 579 if (buffer[runtimeArgLen] == '\0') { 580 return false; 581 } 582 addOption(quotingArg); 583 addOption("--runtime-arg"); 584 addOption(quotingArg); 585 addOption(buffer); 586 return true; 587} 588 589/* 590 * Start the Dalvik Virtual Machine. 591 * 592 * Various arguments, most determined by system properties, are passed in. 593 * The "mOptions" vector is updated. 594 * 595 * CAUTION: when adding options in here, be careful not to put the 596 * char buffer inside a nested scope. Adding the buffer to the 597 * options using mOptions.add() does not copy the buffer, so if the 598 * buffer goes out of scope the option may be overwritten. It's best 599 * to put the buffer at the top of the function so that it is more 600 * unlikely that someone will surround it in a scope at a later time 601 * and thus introduce a bug. 602 * 603 * Returns 0 on success. 604 */ 605int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote) 606{ 607 JavaVMInitArgs initArgs; 608 char propBuf[PROPERTY_VALUE_MAX]; 609 char stackTraceDirBuf[sizeof("-Xstacktracedir:")-1 + PROPERTY_VALUE_MAX]; 610 char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX]; 611 char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX]; 612 char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 613 char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 614 char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX]; 615 char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX]; 616 char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX]; 617 char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX]; 618 char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX]; 619 char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX]; 620 char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX]; 621 char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX]; 622 char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX]; 623 char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX]; 624 char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX]; 625 char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX]; 626 char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX]; 627 char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX]; 628 char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 629 char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 630 char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 631 char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 632 char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 633 char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 634 char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 635 char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 636 char dex2oat_isa_variant_key[PROPERTY_KEY_MAX]; 637 char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX]; 638 char dex2oat_isa_features_key[PROPERTY_KEY_MAX]; 639 char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX]; 640 char dex2oatFlagsBuf[PROPERTY_VALUE_MAX]; 641 char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX]; 642 char extraOptsBuf[PROPERTY_VALUE_MAX]; 643 char voldDecryptBuf[PROPERTY_VALUE_MAX]; 644 enum { 645 kEMDefault, 646 kEMIntPortable, 647 kEMIntFast, 648 kEMJitCompiler, 649 } executionMode = kEMDefault; 650 char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX]; 651 char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX]; 652 char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX]; 653 char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX]; 654 char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX]; 655 char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX]; 656 char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX]; 657 658 bool checkJni = false; 659 property_get("dalvik.vm.checkjni", propBuf, ""); 660 if (strcmp(propBuf, "true") == 0) { 661 checkJni = true; 662 } else if (strcmp(propBuf, "false") != 0) { 663 /* property is neither true nor false; fall back on kernel parameter */ 664 property_get("ro.kernel.android.checkjni", propBuf, ""); 665 if (propBuf[0] == '1') { 666 checkJni = true; 667 } 668 } 669 ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF"); 670 if (checkJni) { 671 /* extended JNI checking */ 672 addOption("-Xcheck:jni"); 673 674 /* with -Xcheck:jni, this provides a JNI function call trace */ 675 //addOption("-verbose:jni"); 676 } 677 678 property_get("dalvik.vm.execution-mode", propBuf, ""); 679 if (strcmp(propBuf, "int:portable") == 0) { 680 executionMode = kEMIntPortable; 681 } else if (strcmp(propBuf, "int:fast") == 0) { 682 executionMode = kEMIntFast; 683 } else if (strcmp(propBuf, "int:jit") == 0) { 684 executionMode = kEMJitCompiler; 685 } 686 687 // If dalvik.vm.stack-trace-dir is set, it enables the "new" stack trace 688 // dump scheme and a new file is created for each stack dump. If it isn't set, 689 // the old scheme is enabled. 690 if (!parseRuntimeOption("dalvik.vm.stack-trace-dir", stackTraceDirBuf, "-Xstacktracedir:")) { 691 parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:"); 692 } 693 694 strcpy(jniOptsBuf, "-Xjniopts:"); 695 if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) { 696 ALOGI("JNI options: '%s'\n", jniOptsBuf); 697 } 698 699 /* route exit() to our handler */ 700 addOption("exit", (void*) runtime_exit); 701 702 /* route fprintf() to our handler */ 703 addOption("vfprintf", (void*) runtime_vfprintf); 704 705 /* register the framework-specific "is sensitive thread" hook */ 706 addOption("sensitiveThread", (void*) runtime_isSensitiveThread); 707 708 /* enable verbose; standard options are { jni, gc, class } */ 709 //addOption("-verbose:jni"); 710 addOption("-verbose:gc"); 711 //addOption("-verbose:class"); 712 713 /* 714 * The default starting and maximum size of the heap. Larger 715 * values should be specified in a product property override. 716 */ 717 parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m"); 718 parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m"); 719 720 parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit="); 721 parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree="); 722 parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree="); 723 parseRuntimeOption("dalvik.vm.heaptargetutilization", 724 heaptargetutilizationOptsBuf, 725 "-XX:HeapTargetUtilization="); 726 727 /* 728 * JIT related options. 729 */ 730 parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:"); 731 parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:"); 732 parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:"); 733 parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:"); 734 property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, ""); 735 if (strcmp(useJitProfilesOptsBuf, "true") == 0) { 736 addOption("-Xjitsaveprofilinginfo"); 737 } 738 739 parseRuntimeOption("dalvik.vm.jitprithreadweight", 740 jitprithreadweightOptBuf, 741 "-Xjitprithreadweight:"); 742 743 parseRuntimeOption("dalvik.vm.jittransitionweight", 744 jittransitionweightOptBuf, 745 "-Xjittransitionweight:"); 746 747 property_get("ro.config.low_ram", propBuf, ""); 748 if (strcmp(propBuf, "true") == 0) { 749 addOption("-XX:LowMemoryMode"); 750 } 751 752 parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:"); 753 parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC="); 754 755 /* 756 * Enable debugging only for apps forked from zygote. 757 * Set suspend=y to pause during VM init and use android ADB transport. 758 */ 759 if (zygote) { 760 addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y"); 761 } 762 763 parseRuntimeOption("dalvik.vm.lockprof.threshold", 764 lockProfThresholdBuf, 765 "-Xlockprofthreshold:"); 766 767 if (executionMode == kEMIntPortable) { 768 addOption("-Xint:portable"); 769 } else if (executionMode == kEMIntFast) { 770 addOption("-Xint:fast"); 771 } else if (executionMode == kEMJitCompiler) { 772 addOption("-Xint:jit"); 773 } 774 775 // If we are booting without the real /data, don't spend time compiling. 776 property_get("vold.decrypt", voldDecryptBuf, ""); 777 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || 778 (strcmp(voldDecryptBuf, "1") == 0)); 779 780 // Extra options for boot.art/boot.oat image generation. 781 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, 782 "-Xms", "-Ximage-compiler-option"); 783 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, 784 "-Xmx", "-Ximage-compiler-option"); 785 if (skip_compilation) { 786 addOption("-Ximage-compiler-option"); 787 addOption("--compiler-filter=assume-verified"); 788 } else { 789 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, 790 "--compiler-filter=", "-Ximage-compiler-option"); 791 } 792 793 // Make sure there is a preloaded-classes file. 794 if (!hasFile("/system/etc/preloaded-classes")) { 795 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n", 796 strerror(errno)); 797 return -1; 798 } 799 addOption("-Ximage-compiler-option"); 800 addOption("--image-classes=/system/etc/preloaded-classes"); 801 802 // If there is a compiled-classes file, push it. 803 if (hasFile("/system/etc/compiled-classes")) { 804 addOption("-Ximage-compiler-option"); 805 addOption("--compiled-classes=/system/etc/compiled-classes"); 806 } 807 808 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); 809 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); 810 811 // Extra options for DexClassLoader. 812 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, 813 "-Xms", "-Xcompiler-option"); 814 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, 815 "-Xmx", "-Xcompiler-option"); 816 if (skip_compilation) { 817 addOption("-Xcompiler-option"); 818 addOption("--compiler-filter=assume-verified"); 819 820 // We skip compilation when a minimal runtime is brought up for decryption. In that case 821 // /data is temporarily backed by a tmpfs, which is usually small. 822 // If the system image contains prebuilts, they will be relocated into the tmpfs. In this 823 // specific situation it is acceptable to *not* relocate and run out of the prebuilts 824 // directly instead. 825 addOption("--runtime-arg"); 826 addOption("-Xnorelocate"); 827 } else { 828 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, 829 "--compiler-filter=", "-Xcompiler-option"); 830 } 831 parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option"); 832 parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j", 833 "-Ximage-compiler-option"); 834 835 // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to 836 // pass the instruction-set-features/variant as an image-compiler-option. 837 // TODO: Find a better way for the instruction-set. 838#if defined(__arm__) 839 constexpr const char* instruction_set = "arm"; 840#elif defined(__aarch64__) 841 constexpr const char* instruction_set = "arm64"; 842#elif defined(__mips__) && !defined(__LP64__) 843 constexpr const char* instruction_set = "mips"; 844#elif defined(__mips__) && defined(__LP64__) 845 constexpr const char* instruction_set = "mips64"; 846#elif defined(__i386__) 847 constexpr const char* instruction_set = "x86"; 848#elif defined(__x86_64__) 849 constexpr const char* instruction_set = "x86_64"; 850#else 851 constexpr const char* instruction_set = "unknown"; 852#endif 853 // Note: it is OK to reuse the buffer, as the values are exactly the same between 854 // * compiler-option, used for runtime compilation (DexClassLoader) 855 // * image-compiler-option, used for boot-image compilation on device 856 857 // Copy the variant. 858 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set); 859 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 860 "--instruction-set-variant=", "-Ximage-compiler-option"); 861 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 862 "--instruction-set-variant=", "-Xcompiler-option"); 863 // Copy the features. 864 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set); 865 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 866 "--instruction-set-features=", "-Ximage-compiler-option"); 867 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 868 "--instruction-set-features=", "-Xcompiler-option"); 869 870 871 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); 872 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); 873 874 /* extra options; parse this late so it overrides others */ 875 property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); 876 parseExtraOpts(extraOptsBuf, NULL); 877 878 /* Set the properties for locale */ 879 { 880 strcpy(localeOption, "-Duser.locale="); 881 const std::string locale = readLocale(); 882 strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX); 883 addOption(localeOption); 884 } 885 886 // Trace files are stored in /data/misc/trace which is writable only in debug mode. 887 property_get("ro.debuggable", propBuf, "0"); 888 if (strcmp(propBuf, "1") == 0) { 889 property_get("dalvik.vm.method-trace", propBuf, "false"); 890 if (strcmp(propBuf, "true") == 0) { 891 addOption("-Xmethod-trace"); 892 parseRuntimeOption("dalvik.vm.method-trace-file", 893 methodTraceFileBuf, 894 "-Xmethod-trace-file:"); 895 parseRuntimeOption("dalvik.vm.method-trace-file-siz", 896 methodTraceFileSizeBuf, 897 "-Xmethod-trace-file-size:"); 898 property_get("dalvik.vm.method-trace-stream", propBuf, "false"); 899 if (strcmp(propBuf, "true") == 0) { 900 addOption("-Xmethod-trace-stream"); 901 } 902 } 903 } 904 905 // Native bridge library. "0" means that native bridge is disabled. 906 property_get("ro.dalvik.vm.native.bridge", propBuf, ""); 907 if (propBuf[0] == '\0') { 908 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); 909 } else if (strcmp(propBuf, "0") != 0) { 910 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, 911 "-XX:NativeBridge=%s", propBuf); 912 addOption(nativeBridgeLibrary); 913 } 914 915#if defined(__LP64__) 916 const char* cpu_abilist_property_name = "ro.product.cpu.abilist64"; 917#else 918 const char* cpu_abilist_property_name = "ro.product.cpu.abilist32"; 919#endif // defined(__LP64__) 920 property_get(cpu_abilist_property_name, propBuf, ""); 921 if (propBuf[0] == '\0') { 922 ALOGE("%s is not expected to be empty", cpu_abilist_property_name); 923 return -1; 924 } 925 snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf); 926 addOption(cpuAbiListBuf); 927 928 // Dalvik-cache pruning counter. 929 parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf, 930 "-Xzygote-max-boot-retry="); 931 932 /* 933 * When running with debug.generate-debug-info, add --generate-debug-info to 934 * the compiler options so that the boot image, if it is compiled on device, 935 * will include native debugging information. 936 */ 937 property_get("debug.generate-debug-info", propBuf, ""); 938 if (strcmp(propBuf, "true") == 0) { 939 addOption("-Xcompiler-option"); 940 addOption("--generate-debug-info"); 941 addOption("-Ximage-compiler-option"); 942 addOption("--generate-debug-info"); 943 } 944 945 /* 946 * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will 947 * contain the fingerprint and can be parsed. 948 */ 949 parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:"); 950 951 initArgs.version = JNI_VERSION_1_4; 952 initArgs.options = mOptions.editArray(); 953 initArgs.nOptions = mOptions.size(); 954 initArgs.ignoreUnrecognized = JNI_FALSE; 955 956 /* 957 * Initialize the VM. 958 * 959 * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. 960 * If this call succeeds, the VM is ready, and we can start issuing 961 * JNI calls. 962 */ 963 if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { 964 ALOGE("JNI_CreateJavaVM failed\n"); 965 return -1; 966 } 967 968 return 0; 969} 970 971char* AndroidRuntime::toSlashClassName(const char* className) 972{ 973 char* result = strdup(className); 974 for (char* cp = result; *cp != '\0'; cp++) { 975 if (*cp == '.') { 976 *cp = '/'; 977 } 978 } 979 return result; 980} 981 982/** Create a Java string from an ASCII or Latin-1 string */ 983jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { 984 if (!bytes) return NULL; 985 int length = strlen(bytes); 986 jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); 987 if (!buffer) return NULL; 988 jchar* chp = buffer; 989 for (int i = 0; i < length; i++) { 990 *chp++ = *bytes++; 991 } 992 return env->NewString(buffer, length); 993} 994 995 996/* 997 * Start the Android runtime. This involves starting the virtual machine 998 * and calling the "static void main(String[] args)" method in the class 999 * named by "className". 1000 * 1001 * Passes the main function two arguments, the class name and the specified 1002 * options string. 1003 */ 1004void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote) 1005{ 1006 ALOGD(">>>>>> START %s uid %d <<<<<<\n", 1007 className != NULL ? className : "(unknown)", getuid()); 1008 1009 static const String8 startSystemServer("start-system-server"); 1010 1011 /* 1012 * 'startSystemServer == true' means runtime is obsolete and not run from 1013 * init.rc anymore, so we print out the boot start event here. 1014 */ 1015 for (size_t i = 0; i < options.size(); ++i) { 1016 if (options[i] == startSystemServer) { 1017 /* track our progress through the boot sequence */ 1018 const int LOG_BOOT_PROGRESS_START = 3000; 1019 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); 1020 } 1021 } 1022 1023 const char* rootDir = getenv("ANDROID_ROOT"); 1024 if (rootDir == NULL) { 1025 rootDir = "/system"; 1026 if (!hasDir("/system")) { 1027 LOG_FATAL("No root directory specified, and /android does not exist."); 1028 return; 1029 } 1030 setenv("ANDROID_ROOT", rootDir, 1); 1031 } 1032 1033 //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); 1034 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); 1035 1036 /* start the virtual machine */ 1037 JniInvocation jni_invocation; 1038 jni_invocation.Init(NULL); 1039 JNIEnv* env; 1040 if (startVm(&mJavaVM, &env, zygote) != 0) { 1041 return; 1042 } 1043 onVmCreated(env); 1044 1045 /* 1046 * Register android functions. 1047 */ 1048 if (startReg(env) < 0) { 1049 ALOGE("Unable to register all android natives\n"); 1050 return; 1051 } 1052 1053 /* 1054 * We want to call main() with a String array with arguments in it. 1055 * At present we have two arguments, the class name and an option string. 1056 * Create an array to hold them. 1057 */ 1058 jclass stringClass; 1059 jobjectArray strArray; 1060 jstring classNameStr; 1061 1062 stringClass = env->FindClass("java/lang/String"); 1063 assert(stringClass != NULL); 1064 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); 1065 assert(strArray != NULL); 1066 classNameStr = env->NewStringUTF(className); 1067 assert(classNameStr != NULL); 1068 env->SetObjectArrayElement(strArray, 0, classNameStr); 1069 1070 for (size_t i = 0; i < options.size(); ++i) { 1071 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); 1072 assert(optionsStr != NULL); 1073 env->SetObjectArrayElement(strArray, i + 1, optionsStr); 1074 } 1075 1076 /* 1077 * Start VM. This thread becomes the main thread of the VM, and will 1078 * not return until the VM exits. 1079 */ 1080 char* slashClassName = toSlashClassName(className); 1081 jclass startClass = env->FindClass(slashClassName); 1082 if (startClass == NULL) { 1083 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); 1084 /* keep going */ 1085 } else { 1086 jmethodID startMeth = env->GetStaticMethodID(startClass, "main", 1087 "([Ljava/lang/String;)V"); 1088 if (startMeth == NULL) { 1089 ALOGE("JavaVM unable to find main() in '%s'\n", className); 1090 /* keep going */ 1091 } else { 1092 env->CallStaticVoidMethod(startClass, startMeth, strArray); 1093 1094#if 0 1095 if (env->ExceptionCheck()) 1096 threadExitUncaughtException(env); 1097#endif 1098 } 1099 } 1100 free(slashClassName); 1101 1102 ALOGD("Shutting down VM\n"); 1103 if (mJavaVM->DetachCurrentThread() != JNI_OK) 1104 ALOGW("Warning: unable to detach main thread\n"); 1105 if (mJavaVM->DestroyJavaVM() != 0) 1106 ALOGW("Warning: VM did not shut down cleanly\n"); 1107} 1108 1109void AndroidRuntime::exit(int code) 1110{ 1111 if (mExitWithoutCleanup) { 1112 ALOGI("VM exiting with result code %d, cleanup skipped.", code); 1113 ::_exit(code); 1114 } else { 1115 ALOGI("VM exiting with result code %d.", code); 1116 onExit(code); 1117 ::exit(code); 1118 } 1119} 1120 1121void AndroidRuntime::onVmCreated(JNIEnv* env) 1122{ 1123 // If AndroidRuntime had anything to do here, we'd have done it in 'start'. 1124} 1125 1126/* 1127 * Get the JNIEnv pointer for this thread. 1128 * 1129 * Returns NULL if the slot wasn't allocated or populated. 1130 */ 1131/*static*/ JNIEnv* AndroidRuntime::getJNIEnv() 1132{ 1133 JNIEnv* env; 1134 JavaVM* vm = AndroidRuntime::getJavaVM(); 1135 assert(vm != NULL); 1136 1137 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) 1138 return NULL; 1139 return env; 1140} 1141 1142/* 1143 * Makes the current thread visible to the VM. 1144 * 1145 * The JNIEnv pointer returned is only valid for the current thread, and 1146 * thus must be tucked into thread-local storage. 1147 */ 1148static int javaAttachThread(const char* threadName, JNIEnv** pEnv) 1149{ 1150 JavaVMAttachArgs args; 1151 JavaVM* vm; 1152 jint result; 1153 1154 vm = AndroidRuntime::getJavaVM(); 1155 assert(vm != NULL); 1156 1157 args.version = JNI_VERSION_1_4; 1158 args.name = (char*) threadName; 1159 args.group = NULL; 1160 1161 result = vm->AttachCurrentThread(pEnv, (void*) &args); 1162 if (result != JNI_OK) 1163 ALOGI("NOTE: attach of thread '%s' failed\n", threadName); 1164 1165 return result; 1166} 1167 1168/* 1169 * Detach the current thread from the set visible to the VM. 1170 */ 1171static int javaDetachThread(void) 1172{ 1173 JavaVM* vm; 1174 jint result; 1175 1176 vm = AndroidRuntime::getJavaVM(); 1177 assert(vm != NULL); 1178 1179 result = vm->DetachCurrentThread(); 1180 if (result != JNI_OK) 1181 ALOGE("ERROR: thread detach failed\n"); 1182 return result; 1183} 1184 1185/* 1186 * When starting a native thread that will be visible from the VM, we 1187 * bounce through this to get the right attach/detach action. 1188 * Note that this function calls free(args) 1189 */ 1190/*static*/ int AndroidRuntime::javaThreadShell(void* args) { 1191 void* start = ((void**)args)[0]; 1192 void* userData = ((void **)args)[1]; 1193 char* name = (char*) ((void **)args)[2]; // we own this storage 1194 free(args); 1195 JNIEnv* env; 1196 int result; 1197 1198 /* hook us into the VM */ 1199 if (javaAttachThread(name, &env) != JNI_OK) 1200 return -1; 1201 1202 /* start the thread running */ 1203 result = (*(android_thread_func_t)start)(userData); 1204 1205 /* unhook us */ 1206 javaDetachThread(); 1207 free(name); 1208 1209 return result; 1210} 1211 1212/* 1213 * This is invoked from androidCreateThreadEtc() via the callback 1214 * set with androidSetCreateThreadFunc(). 1215 * 1216 * We need to create the new thread in such a way that it gets hooked 1217 * into the VM before it really starts executing. 1218 */ 1219/*static*/ int AndroidRuntime::javaCreateThreadEtc( 1220 android_thread_func_t entryFunction, 1221 void* userData, 1222 const char* threadName, 1223 int32_t threadPriority, 1224 size_t threadStackSize, 1225 android_thread_id_t* threadId) 1226{ 1227 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free 1228 int result; 1229 1230 LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc"); 1231 1232 args[0] = (void*) entryFunction; 1233 args[1] = userData; 1234 args[2] = (void*) strdup(threadName); // javaThreadShell must free 1235 1236 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, 1237 threadName, threadPriority, threadStackSize, threadId); 1238 return result; 1239} 1240 1241/* 1242 * Create a thread that is visible from the VM. 1243 * 1244 * This is called from elsewhere in the library. 1245 */ 1246/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, 1247 void (*start)(void *), void* arg) 1248{ 1249 android_thread_id_t threadId = 0; 1250 javaCreateThreadEtc((android_thread_func_t) start, arg, name, 1251 ANDROID_PRIORITY_DEFAULT, 0, &threadId); 1252 return threadId; 1253} 1254 1255#if 0 1256static void quickTest(void* arg) 1257{ 1258 const char* str = (const char*) arg; 1259 1260 printf("In quickTest: %s\n", str); 1261} 1262#endif 1263 1264#ifdef NDEBUG 1265 #define REG_JNI(name) { name } 1266 struct RegJNIRec { 1267 int (*mProc)(JNIEnv*); 1268 }; 1269#else 1270 #define REG_JNI(name) { name, #name } 1271 struct RegJNIRec { 1272 int (*mProc)(JNIEnv*); 1273 const char* mName; 1274 }; 1275#endif 1276 1277typedef void (*RegJAMProc)(); 1278 1279static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) 1280{ 1281 for (size_t i = 0; i < count; i++) { 1282 if (array[i].mProc(env) < 0) { 1283#ifndef NDEBUG 1284 ALOGD("----------!!! %s failed to load\n", array[i].mName); 1285#endif 1286 return -1; 1287 } 1288 } 1289 return 0; 1290} 1291 1292static const RegJNIRec gRegJNI[] = { 1293 REG_JNI(register_com_android_internal_os_RuntimeInit), 1294 REG_JNI(register_com_android_internal_os_ZygoteInit), 1295 REG_JNI(register_android_os_SystemClock), 1296 REG_JNI(register_android_util_EventLog), 1297 REG_JNI(register_android_util_Log), 1298 REG_JNI(register_android_util_MemoryIntArray), 1299 REG_JNI(register_android_util_PathParser), 1300 REG_JNI(register_android_app_admin_SecurityLog), 1301 REG_JNI(register_android_content_AssetManager), 1302 REG_JNI(register_android_content_StringBlock), 1303 REG_JNI(register_android_content_XmlBlock), 1304 REG_JNI(register_android_text_AndroidCharacter), 1305 REG_JNI(register_android_text_StaticLayout), 1306 REG_JNI(register_android_text_AndroidBidi), 1307 REG_JNI(register_android_view_InputDevice), 1308 REG_JNI(register_android_view_KeyCharacterMap), 1309 REG_JNI(register_android_os_Process), 1310 REG_JNI(register_android_os_SystemProperties), 1311 REG_JNI(register_android_os_Binder), 1312 REG_JNI(register_android_os_Parcel), 1313 REG_JNI(register_android_os_HwBinder), 1314 REG_JNI(register_android_os_HwBlob), 1315 REG_JNI(register_android_os_HwParcel), 1316 REG_JNI(register_android_os_HwRemoteBinder), 1317 REG_JNI(register_android_os_VintfObject), 1318 REG_JNI(register_android_os_VintfRuntimeInfo), 1319 REG_JNI(register_android_nio_utils), 1320 REG_JNI(register_android_graphics_Canvas), 1321 REG_JNI(register_android_graphics_Graphics), 1322 REG_JNI(register_android_view_DisplayEventReceiver), 1323 REG_JNI(register_android_view_RenderNode), 1324 REG_JNI(register_android_view_RenderNodeAnimator), 1325 REG_JNI(register_android_view_GraphicBuffer), 1326 REG_JNI(register_android_view_DisplayListCanvas), 1327 REG_JNI(register_android_view_HardwareLayer), 1328 REG_JNI(register_android_view_ThreadedRenderer), 1329 REG_JNI(register_android_view_Surface), 1330 REG_JNI(register_android_view_SurfaceControl), 1331 REG_JNI(register_android_view_SurfaceSession), 1332 REG_JNI(register_android_view_TextureView), 1333 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), 1334 REG_JNI(register_com_google_android_gles_jni_EGLImpl), 1335 REG_JNI(register_com_google_android_gles_jni_GLImpl), 1336 REG_JNI(register_android_opengl_jni_EGL14), 1337 REG_JNI(register_android_opengl_jni_EGLExt), 1338 REG_JNI(register_android_opengl_jni_GLES10), 1339 REG_JNI(register_android_opengl_jni_GLES10Ext), 1340 REG_JNI(register_android_opengl_jni_GLES11), 1341 REG_JNI(register_android_opengl_jni_GLES11Ext), 1342 REG_JNI(register_android_opengl_jni_GLES20), 1343 REG_JNI(register_android_opengl_jni_GLES30), 1344 REG_JNI(register_android_opengl_jni_GLES31), 1345 REG_JNI(register_android_opengl_jni_GLES31Ext), 1346 REG_JNI(register_android_opengl_jni_GLES32), 1347 1348 REG_JNI(register_android_graphics_Bitmap), 1349 REG_JNI(register_android_graphics_BitmapFactory), 1350 REG_JNI(register_android_graphics_BitmapRegionDecoder), 1351 REG_JNI(register_android_graphics_Camera), 1352 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), 1353 REG_JNI(register_android_graphics_CanvasProperty), 1354 REG_JNI(register_android_graphics_ColorFilter), 1355 REG_JNI(register_android_graphics_DrawFilter), 1356 REG_JNI(register_android_graphics_FontFamily), 1357 REG_JNI(register_android_graphics_Interpolator), 1358 REG_JNI(register_android_graphics_LayerRasterizer), 1359 REG_JNI(register_android_graphics_MaskFilter), 1360 REG_JNI(register_android_graphics_Matrix), 1361 REG_JNI(register_android_graphics_Movie), 1362 REG_JNI(register_android_graphics_NinePatch), 1363 REG_JNI(register_android_graphics_Paint), 1364 REG_JNI(register_android_graphics_Path), 1365 REG_JNI(register_android_graphics_PathMeasure), 1366 REG_JNI(register_android_graphics_PathEffect), 1367 REG_JNI(register_android_graphics_Picture), 1368 REG_JNI(register_android_graphics_PorterDuff), 1369 REG_JNI(register_android_graphics_Rasterizer), 1370 REG_JNI(register_android_graphics_Region), 1371 REG_JNI(register_android_graphics_Shader), 1372 REG_JNI(register_android_graphics_SurfaceTexture), 1373 REG_JNI(register_android_graphics_Typeface), 1374 REG_JNI(register_android_graphics_Xfermode), 1375 REG_JNI(register_android_graphics_YuvImage), 1376 REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable), 1377 REG_JNI(register_android_graphics_drawable_VectorDrawable), 1378 REG_JNI(register_android_graphics_pdf_PdfDocument), 1379 REG_JNI(register_android_graphics_pdf_PdfEditor), 1380 REG_JNI(register_android_graphics_pdf_PdfRenderer), 1381 1382 REG_JNI(register_android_database_CursorWindow), 1383 REG_JNI(register_android_database_SQLiteConnection), 1384 REG_JNI(register_android_database_SQLiteGlobal), 1385 REG_JNI(register_android_database_SQLiteDebug), 1386 REG_JNI(register_android_os_Debug), 1387 REG_JNI(register_android_os_FileObserver), 1388 REG_JNI(register_android_os_GraphicsEnvironment), 1389 REG_JNI(register_android_os_MessageQueue), 1390 REG_JNI(register_android_os_SELinux), 1391 REG_JNI(register_android_os_seccomp), 1392 REG_JNI(register_android_os_Trace), 1393 REG_JNI(register_android_os_UEventObserver), 1394 REG_JNI(register_android_net_LocalSocketImpl), 1395 REG_JNI(register_android_net_NetworkUtils), 1396 REG_JNI(register_android_net_TrafficStats), 1397 REG_JNI(register_android_os_MemoryFile), 1398 REG_JNI(register_com_android_internal_os_PathClassLoaderFactory), 1399 REG_JNI(register_com_android_internal_os_Zygote), 1400 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), 1401 REG_JNI(register_android_hardware_Camera), 1402 REG_JNI(register_android_hardware_camera2_CameraMetadata), 1403 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), 1404 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), 1405 REG_JNI(register_android_hardware_camera2_DngCreator), 1406 REG_JNI(register_android_hardware_Radio), 1407 REG_JNI(register_android_hardware_SensorManager), 1408 REG_JNI(register_android_hardware_SerialPort), 1409 REG_JNI(register_android_hardware_SoundTrigger), 1410 REG_JNI(register_android_hardware_UsbDevice), 1411 REG_JNI(register_android_hardware_UsbDeviceConnection), 1412 REG_JNI(register_android_hardware_UsbRequest), 1413 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), 1414 REG_JNI(register_android_hardware_location_ContextHubService), 1415 REG_JNI(register_android_media_AudioRecord), 1416 REG_JNI(register_android_media_AudioSystem), 1417 REG_JNI(register_android_media_AudioTrack), 1418 REG_JNI(register_android_media_JetPlayer), 1419 REG_JNI(register_android_media_RemoteDisplay), 1420 REG_JNI(register_android_media_ToneGenerator), 1421 1422 REG_JNI(register_android_opengl_classes), 1423 REG_JNI(register_android_server_NetworkManagementSocketTagger), 1424 REG_JNI(register_android_ddm_DdmHandleNativeHeap), 1425 REG_JNI(register_android_backup_BackupDataInput), 1426 REG_JNI(register_android_backup_BackupDataOutput), 1427 REG_JNI(register_android_backup_FileBackupHelperBase), 1428 REG_JNI(register_android_backup_BackupHelperDispatcher), 1429 REG_JNI(register_android_app_backup_FullBackup), 1430 REG_JNI(register_android_app_Activity), 1431 REG_JNI(register_android_app_ActivityThread), 1432 REG_JNI(register_android_app_ApplicationLoaders), 1433 REG_JNI(register_android_app_NativeActivity), 1434 REG_JNI(register_android_util_jar_StrictJarFile), 1435 REG_JNI(register_android_view_InputChannel), 1436 REG_JNI(register_android_view_InputEventReceiver), 1437 REG_JNI(register_android_view_InputEventSender), 1438 REG_JNI(register_android_view_InputQueue), 1439 REG_JNI(register_android_view_KeyEvent), 1440 REG_JNI(register_android_view_MotionEvent), 1441 REG_JNI(register_android_view_PointerIcon), 1442 REG_JNI(register_android_view_VelocityTracker), 1443 1444 REG_JNI(register_android_content_res_ObbScanner), 1445 REG_JNI(register_android_content_res_Configuration), 1446 1447 REG_JNI(register_android_animation_PropertyValuesHolder), 1448 REG_JNI(register_com_android_internal_content_NativeLibraryHelper), 1449 REG_JNI(register_com_android_internal_net_NetworkStatsFactory), 1450 1451}; 1452 1453/* 1454 * Register android native functions with the VM. 1455 */ 1456/*static*/ int AndroidRuntime::startReg(JNIEnv* env) 1457{ 1458 ATRACE_NAME("RegisterAndroidNatives"); 1459 /* 1460 * This hook causes all future threads created in this process to be 1461 * attached to the JavaVM. (This needs to go away in favor of JNI 1462 * Attach calls.) 1463 */ 1464 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); 1465 1466 ALOGV("--- registering native functions ---\n"); 1467 1468 /* 1469 * Every "register" function calls one or more things that return 1470 * a local reference (e.g. FindClass). Because we haven't really 1471 * started the VM yet, they're all getting stored in the base frame 1472 * and never released. Use Push/Pop to manage the storage. 1473 */ 1474 env->PushLocalFrame(200); 1475 1476 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { 1477 env->PopLocalFrame(NULL); 1478 return -1; 1479 } 1480 env->PopLocalFrame(NULL); 1481 1482 //createJavaThread("fubar", quickTest, (void*) "hello"); 1483 1484 return 0; 1485} 1486 1487AndroidRuntime* AndroidRuntime::getRuntime() 1488{ 1489 return gCurRuntime; 1490} 1491 1492/** 1493 * Used by surface flinger's DdmConnection to register native methods from 1494 * the framework. 1495 */ 1496extern "C" jint registerFrameworkNatives(JNIEnv* env) { 1497 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1498} 1499} // namespace android 1500