AndroidRuntime.cpp revision c28592da338ce64f0132901e47bb1834895f6e9e
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_seccomp(JNIEnv* env); 168extern int register_android_os_SystemProperties(JNIEnv *env); 169extern int register_android_os_SystemClock(JNIEnv* env); 170extern int register_android_os_Trace(JNIEnv* env); 171extern int register_android_os_FileObserver(JNIEnv *env); 172extern int register_android_os_UEventObserver(JNIEnv* env); 173extern int register_android_os_MemoryFile(JNIEnv* env); 174extern int register_android_net_LocalSocketImpl(JNIEnv* env); 175extern int register_android_net_NetworkUtils(JNIEnv* env); 176extern int register_android_net_TrafficStats(JNIEnv* env); 177extern int register_android_text_AndroidCharacter(JNIEnv *env); 178extern int register_android_text_StaticLayout(JNIEnv *env); 179extern int register_android_text_AndroidBidi(JNIEnv *env); 180extern int register_android_opengl_classes(JNIEnv *env); 181extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env); 182extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env); 183extern int register_android_backup_BackupDataInput(JNIEnv *env); 184extern int register_android_backup_BackupDataOutput(JNIEnv *env); 185extern int register_android_backup_FileBackupHelperBase(JNIEnv *env); 186extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env); 187extern int register_android_app_backup_FullBackup(JNIEnv *env); 188extern int register_android_app_Activity(JNIEnv *env); 189extern int register_android_app_ActivityThread(JNIEnv *env); 190extern int register_android_app_ApplicationLoaders(JNIEnv *env); 191extern int register_android_app_NativeActivity(JNIEnv *env); 192extern int register_android_media_RemoteDisplay(JNIEnv *env); 193extern int register_android_util_jar_StrictJarFile(JNIEnv* env); 194extern int register_android_view_InputChannel(JNIEnv* env); 195extern int register_android_view_InputDevice(JNIEnv* env); 196extern int register_android_view_InputEventReceiver(JNIEnv* env); 197extern int register_android_view_InputEventSender(JNIEnv* env); 198extern int register_android_view_InputQueue(JNIEnv* env); 199extern int register_android_view_KeyCharacterMap(JNIEnv *env); 200extern int register_android_view_KeyEvent(JNIEnv* env); 201extern int register_android_view_MotionEvent(JNIEnv* env); 202extern int register_android_view_PointerIcon(JNIEnv* env); 203extern int register_android_view_VelocityTracker(JNIEnv* env); 204extern int register_android_content_res_ObbScanner(JNIEnv* env); 205extern int register_android_content_res_Configuration(JNIEnv* env); 206extern int register_android_animation_PropertyValuesHolder(JNIEnv *env); 207extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env); 208extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env); 209extern int register_com_android_internal_os_PathClassLoaderFactory(JNIEnv* env); 210extern int register_com_android_internal_os_Zygote(JNIEnv *env); 211extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env); 212 213static AndroidRuntime* gCurRuntime = NULL; 214 215/* 216 * Code written in the Java Programming Language calls here from main(). 217 */ 218static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz) 219{ 220 gCurRuntime->onStarted(); 221} 222 223static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz) 224{ 225 gCurRuntime->onZygoteInit(); 226} 227 228static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env, 229 jobject clazz, jboolean exitWithoutCleanup) 230{ 231 gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup); 232} 233 234/* 235 * JNI registration. 236 */ 237 238int register_com_android_internal_os_RuntimeInit(JNIEnv* env) 239{ 240 const JNINativeMethod methods[] = { 241 { "nativeFinishInit", "()V", 242 (void*) com_android_internal_os_RuntimeInit_nativeFinishInit }, 243 { "nativeSetExitWithoutCleanup", "(Z)V", 244 (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup }, 245 }; 246 return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit", 247 methods, NELEM(methods)); 248} 249 250int register_com_android_internal_os_ZygoteInit(JNIEnv* env) 251{ 252 const JNINativeMethod methods[] = { 253 { "nativeZygoteInit", "()V", 254 (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit }, 255 }; 256 return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit", 257 methods, NELEM(methods)); 258} 259 260// ---------------------------------------------------------------------- 261 262/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL; 263 264AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) : 265 mExitWithoutCleanup(false), 266 mArgBlockStart(argBlockStart), 267 mArgBlockLength(argBlockLength) 268{ 269 SkGraphics::Init(); 270 // There is also a global font cache, but its budget is specified by 271 // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT. 272 273 // Pre-allocate enough space to hold a fair number of options. 274 mOptions.setCapacity(20); 275 276 assert(gCurRuntime == NULL); // one per process 277 gCurRuntime = this; 278} 279 280AndroidRuntime::~AndroidRuntime() 281{ 282 SkGraphics::Term(); 283} 284 285/* 286 * Register native methods using JNI. 287 */ 288/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env, 289 const char* className, const JNINativeMethod* gMethods, int numMethods) 290{ 291 return jniRegisterNativeMethods(env, className, gMethods, numMethods); 292} 293 294void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) { 295 if (setProcName) { 296 int len = strlen(argv0); 297 if (len < 15) { 298 pthread_setname_np(pthread_self(), argv0); 299 } else { 300 pthread_setname_np(pthread_self(), argv0 + len - 15); 301 } 302 } 303 memset(mArgBlockStart, 0, mArgBlockLength); 304 strlcpy(mArgBlockStart, argv0, mArgBlockLength); 305} 306 307status_t AndroidRuntime::callMain(const String8& className, jclass clazz, 308 const Vector<String8>& args) 309{ 310 JNIEnv* env; 311 jmethodID methodId; 312 313 ALOGD("Calling main entry %s", className.string()); 314 315 env = getJNIEnv(); 316 if (clazz == NULL || env == NULL) { 317 return UNKNOWN_ERROR; 318 } 319 320 methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V"); 321 if (methodId == NULL) { 322 ALOGE("ERROR: could not find method %s.main(String[])\n", className.string()); 323 return UNKNOWN_ERROR; 324 } 325 326 /* 327 * We want to call main() with a String array with our arguments in it. 328 * Create an array and populate it. 329 */ 330 jclass stringClass; 331 jobjectArray strArray; 332 333 const size_t numArgs = args.size(); 334 stringClass = env->FindClass("java/lang/String"); 335 strArray = env->NewObjectArray(numArgs, stringClass, NULL); 336 337 for (size_t i = 0; i < numArgs; i++) { 338 jstring argStr = env->NewStringUTF(args[i].string()); 339 env->SetObjectArrayElement(strArray, i, argStr); 340 } 341 342 env->CallStaticVoidMethod(clazz, methodId, strArray); 343 return NO_ERROR; 344} 345 346/* 347 * The VM calls this through the "exit" hook. 348 */ 349static void runtime_exit(int code) 350{ 351 gCurRuntime->exit(code); 352} 353 354/* 355 * The VM calls this through the "vfprintf" hook. 356 * 357 * We ignore "fp" and just write the results to the log file. 358 */ 359static void runtime_vfprintf(FILE* fp, const char* format, va_list ap) 360{ 361 LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap); 362} 363 364/** 365 * The VM calls this when mutex contention debugging is enabled to 366 * determine whether or not the blocked thread was a "sensitive thread" 367 * for user responsiveness/smoothess. 368 * 369 * Our policy for this is whether or not we're tracing any StrictMode 370 * events on this thread (which we might've inherited via Binder calls 371 * into us) 372 */ 373static bool runtime_isSensitiveThread() { 374 IPCThreadState* state = IPCThreadState::selfOrNull(); 375 return state && state->getStrictModePolicy() != 0; 376} 377 378static int hasDir(const char* dir) 379{ 380 struct stat s; 381 int res = stat(dir, &s); 382 if (res == 0) { 383 return S_ISDIR(s.st_mode); 384 } 385 return 0; 386} 387 388static bool hasFile(const char* file) { 389 struct stat s; 390 int res = stat(file, &s); 391 if (res == 0) { 392 return S_ISREG(s.st_mode); 393 } 394 return false; 395} 396 397// Convenience wrapper over the property API that returns an 398// std::string. 399std::string getProperty(const char* key, const char* defaultValue) { 400 std::vector<char> temp(PROPERTY_VALUE_MAX); 401 const int len = property_get(key, &temp[0], defaultValue); 402 if (len < 0) { 403 return ""; 404 } 405 return std::string(&temp[0], len); 406} 407 408/* 409 * Read the persistent locale. Inspects the following system properties 410 * (in order) and returns the first non-empty property in the list : 411 * 412 * (1) persist.sys.locale 413 * (2) persist.sys.language/country/localevar (country and localevar are 414 * inspected iff. language is non-empty. 415 * (3) ro.product.locale 416 * (4) ro.product.locale.language/region 417 * 418 * Note that we need to inspect persist.sys.language/country/localevar to 419 * preserve language settings for devices that are upgrading from Lollipop 420 * to M. The same goes for ro.product.locale.language/region as well. 421 */ 422const std::string readLocale() 423{ 424 const std::string locale = getProperty("persist.sys.locale", ""); 425 if (!locale.empty()) { 426 return locale; 427 } 428 429 const std::string language = getProperty("persist.sys.language", ""); 430 if (!language.empty()) { 431 const std::string country = getProperty("persist.sys.country", ""); 432 const std::string variant = getProperty("persist.sys.localevar", ""); 433 434 std::string out = language; 435 if (!country.empty()) { 436 out = out + "-" + country; 437 } 438 439 if (!variant.empty()) { 440 out = out + "-" + variant; 441 } 442 443 return out; 444 } 445 446 const std::string productLocale = getProperty("ro.product.locale", ""); 447 if (!productLocale.empty()) { 448 return productLocale; 449 } 450 451 // If persist.sys.locale and ro.product.locale are missing, 452 // construct a locale value from the individual locale components. 453 const std::string productLanguage = getProperty("ro.product.locale.language", "en"); 454 const std::string productRegion = getProperty("ro.product.locale.region", "US"); 455 456 return productLanguage + "-" + productRegion; 457} 458 459void AndroidRuntime::addOption(const char* optionString, void* extraInfo) 460{ 461 JavaVMOption opt; 462 opt.optionString = optionString; 463 opt.extraInfo = extraInfo; 464 mOptions.add(opt); 465} 466 467/* 468 * Parse a property containing space-separated options that should be 469 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap". 470 * 471 * This will cut up "extraOptsBuf" as we chop it into individual options. 472 * 473 * If "quotingArg" is non-null, it is passed before each extra option in mOptions. 474 * 475 * Adds the strings, if any, to mOptions. 476 */ 477void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg) 478{ 479 char* start = extraOptsBuf; 480 char* end = NULL; 481 while (*start != '\0') { 482 while (*start == ' ') /* skip leading whitespace */ 483 start++; 484 if (*start == '\0') /* was trailing ws, bail */ 485 break; 486 487 end = start+1; 488 while (*end != ' ' && *end != '\0') /* find end of token */ 489 end++; 490 if (*end == ' ') 491 *end++ = '\0'; /* mark end, advance to indicate more */ 492 493 if (quotingArg != NULL) { 494 addOption(quotingArg); 495 } 496 addOption(start); 497 start = end; 498 } 499} 500 501/* 502 * Reads a "property" into "buffer" with a default of "defaultArg". If 503 * the property is non-empty, it is treated as a runtime option such 504 * as "-Xmx32m". 505 * 506 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 507 * 508 * If an argument is found, it is added to mOptions. 509 * 510 * If an option is found, it is added to mOptions and true is 511 * returned. Otherwise false is returned. 512 */ 513bool AndroidRuntime::parseRuntimeOption(const char* property, 514 char* buffer, 515 const char* runtimeArg, 516 const char* defaultArg) 517{ 518 strcpy(buffer, runtimeArg); 519 size_t runtimeArgLen = strlen(runtimeArg); 520 property_get(property, buffer+runtimeArgLen, defaultArg); 521 if (buffer[runtimeArgLen] == '\0') { 522 return false; 523 } 524 addOption(buffer); 525 return true; 526} 527 528/* 529 * Reads a "property" into "buffer". If the property is non-empty, it 530 * is treated as a dex2oat compiler option that should be 531 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none". 532 * 533 * The "compilerArg" is a prefix for the option such as "--compiler-filter=". 534 * 535 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 536 * 537 * If an option is found, it is added to mOptions and true is 538 * returned. Otherwise false is returned. 539 */ 540bool AndroidRuntime::parseCompilerOption(const char* property, 541 char* buffer, 542 const char* compilerArg, 543 const char* quotingArg) 544{ 545 strcpy(buffer, compilerArg); 546 size_t compilerArgLen = strlen(compilerArg); 547 property_get(property, buffer+compilerArgLen, ""); 548 if (buffer[compilerArgLen] == '\0') { 549 return false; 550 } 551 addOption(quotingArg); 552 addOption(buffer); 553 return true; 554} 555 556/* 557 * Reads a "property" into "buffer". If the property is non-empty, it 558 * is treated as a dex2oat compiler runtime option that should be 559 * passed as a quoted option, e.g. "-Ximage-compiler-option 560 * --runtime-arg -Ximage-compiler-option -Xmx32m". 561 * 562 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 563 * 564 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 565 * 566 * If an option is found, it is added to mOptions and true is 567 * returned. Otherwise false is returned. 568 */ 569bool AndroidRuntime::parseCompilerRuntimeOption(const char* property, 570 char* buffer, 571 const char* runtimeArg, 572 const char* quotingArg) 573{ 574 strcpy(buffer, runtimeArg); 575 size_t runtimeArgLen = strlen(runtimeArg); 576 property_get(property, buffer+runtimeArgLen, ""); 577 if (buffer[runtimeArgLen] == '\0') { 578 return false; 579 } 580 addOption(quotingArg); 581 addOption("--runtime-arg"); 582 addOption(quotingArg); 583 addOption(buffer); 584 return true; 585} 586 587/* 588 * Start the Dalvik Virtual Machine. 589 * 590 * Various arguments, most determined by system properties, are passed in. 591 * The "mOptions" vector is updated. 592 * 593 * CAUTION: when adding options in here, be careful not to put the 594 * char buffer inside a nested scope. Adding the buffer to the 595 * options using mOptions.add() does not copy the buffer, so if the 596 * buffer goes out of scope the option may be overwritten. It's best 597 * to put the buffer at the top of the function so that it is more 598 * unlikely that someone will surround it in a scope at a later time 599 * and thus introduce a bug. 600 * 601 * Returns 0 on success. 602 */ 603int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote) 604{ 605 JavaVMInitArgs initArgs; 606 char propBuf[PROPERTY_VALUE_MAX]; 607 char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX]; 608 char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX]; 609 char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 610 char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 611 char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX]; 612 char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX]; 613 char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX]; 614 char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX]; 615 char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX]; 616 char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX]; 617 char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX]; 618 char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX]; 619 char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX]; 620 char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX]; 621 char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX]; 622 char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX]; 623 char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX]; 624 char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX]; 625 char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 626 char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 627 char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 628 char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 629 char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 630 char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 631 char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 632 char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 633 char dex2oat_isa_variant_key[PROPERTY_KEY_MAX]; 634 char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX]; 635 char dex2oat_isa_features_key[PROPERTY_KEY_MAX]; 636 char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX]; 637 char dex2oatFlagsBuf[PROPERTY_VALUE_MAX]; 638 char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX]; 639 char extraOptsBuf[PROPERTY_VALUE_MAX]; 640 char voldDecryptBuf[PROPERTY_VALUE_MAX]; 641 enum { 642 kEMDefault, 643 kEMIntPortable, 644 kEMIntFast, 645 kEMJitCompiler, 646 } executionMode = kEMDefault; 647 char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX]; 648 char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX]; 649 char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX]; 650 char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX]; 651 char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX]; 652 char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX]; 653 char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX]; 654 655 bool checkJni = false; 656 property_get("dalvik.vm.checkjni", propBuf, ""); 657 if (strcmp(propBuf, "true") == 0) { 658 checkJni = true; 659 } else if (strcmp(propBuf, "false") != 0) { 660 /* property is neither true nor false; fall back on kernel parameter */ 661 property_get("ro.kernel.android.checkjni", propBuf, ""); 662 if (propBuf[0] == '1') { 663 checkJni = true; 664 } 665 } 666 ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF"); 667 if (checkJni) { 668 /* extended JNI checking */ 669 addOption("-Xcheck:jni"); 670 671 /* with -Xcheck:jni, this provides a JNI function call trace */ 672 //addOption("-verbose:jni"); 673 } 674 675 property_get("dalvik.vm.execution-mode", propBuf, ""); 676 if (strcmp(propBuf, "int:portable") == 0) { 677 executionMode = kEMIntPortable; 678 } else if (strcmp(propBuf, "int:fast") == 0) { 679 executionMode = kEMIntFast; 680 } else if (strcmp(propBuf, "int:jit") == 0) { 681 executionMode = kEMJitCompiler; 682 } 683 684 parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:"); 685 686 strcpy(jniOptsBuf, "-Xjniopts:"); 687 if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) { 688 ALOGI("JNI options: '%s'\n", jniOptsBuf); 689 } 690 691 /* route exit() to our handler */ 692 addOption("exit", (void*) runtime_exit); 693 694 /* route fprintf() to our handler */ 695 addOption("vfprintf", (void*) runtime_vfprintf); 696 697 /* register the framework-specific "is sensitive thread" hook */ 698 addOption("sensitiveThread", (void*) runtime_isSensitiveThread); 699 700 /* enable verbose; standard options are { jni, gc, class } */ 701 //addOption("-verbose:jni"); 702 addOption("-verbose:gc"); 703 //addOption("-verbose:class"); 704 705 /* 706 * The default starting and maximum size of the heap. Larger 707 * values should be specified in a product property override. 708 */ 709 parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m"); 710 parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m"); 711 712 parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit="); 713 parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree="); 714 parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree="); 715 parseRuntimeOption("dalvik.vm.heaptargetutilization", 716 heaptargetutilizationOptsBuf, 717 "-XX:HeapTargetUtilization="); 718 719 /* 720 * JIT related options. 721 */ 722 parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:"); 723 parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:"); 724 parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:"); 725 parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:"); 726 property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, ""); 727 if (strcmp(useJitProfilesOptsBuf, "true") == 0) { 728 addOption("-Xjitsaveprofilinginfo"); 729 } 730 731 parseRuntimeOption("dalvik.vm.jitprithreadweight", 732 jitprithreadweightOptBuf, 733 "-Xjitprithreadweight:"); 734 735 parseRuntimeOption("dalvik.vm.jittransitionweight", 736 jittransitionweightOptBuf, 737 "-Xjittransitionweight:"); 738 739 property_get("ro.config.low_ram", propBuf, ""); 740 if (strcmp(propBuf, "true") == 0) { 741 addOption("-XX:LowMemoryMode"); 742 } 743 744 parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:"); 745 parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC="); 746 747 /* 748 * Enable debugging only for apps forked from zygote. 749 * Set suspend=y to pause during VM init and use android ADB transport. 750 */ 751 if (zygote) { 752 addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y"); 753 } 754 755 parseRuntimeOption("dalvik.vm.lockprof.threshold", 756 lockProfThresholdBuf, 757 "-Xlockprofthreshold:"); 758 759 if (executionMode == kEMIntPortable) { 760 addOption("-Xint:portable"); 761 } else if (executionMode == kEMIntFast) { 762 addOption("-Xint:fast"); 763 } else if (executionMode == kEMJitCompiler) { 764 addOption("-Xint:jit"); 765 } 766 767 // If we are booting without the real /data, don't spend time compiling. 768 property_get("vold.decrypt", voldDecryptBuf, ""); 769 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || 770 (strcmp(voldDecryptBuf, "1") == 0)); 771 772 // Extra options for boot.art/boot.oat image generation. 773 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, 774 "-Xms", "-Ximage-compiler-option"); 775 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, 776 "-Xmx", "-Ximage-compiler-option"); 777 if (skip_compilation) { 778 addOption("-Ximage-compiler-option"); 779 addOption("--compiler-filter=verify-none"); 780 } else { 781 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, 782 "--compiler-filter=", "-Ximage-compiler-option"); 783 } 784 785 // Make sure there is a preloaded-classes file. 786 if (!hasFile("/system/etc/preloaded-classes")) { 787 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n", 788 strerror(errno)); 789 return -1; 790 } 791 addOption("-Ximage-compiler-option"); 792 addOption("--image-classes=/system/etc/preloaded-classes"); 793 794 // If there is a compiled-classes file, push it. 795 if (hasFile("/system/etc/compiled-classes")) { 796 addOption("-Ximage-compiler-option"); 797 addOption("--compiled-classes=/system/etc/compiled-classes"); 798 } 799 800 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); 801 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); 802 803 // Extra options for DexClassLoader. 804 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, 805 "-Xms", "-Xcompiler-option"); 806 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, 807 "-Xmx", "-Xcompiler-option"); 808 if (skip_compilation) { 809 addOption("-Xcompiler-option"); 810 addOption("--compiler-filter=verify-none"); 811 812 // We skip compilation when a minimal runtime is brought up for decryption. In that case 813 // /data is temporarily backed by a tmpfs, which is usually small. 814 // If the system image contains prebuilts, they will be relocated into the tmpfs. In this 815 // specific situation it is acceptable to *not* relocate and run out of the prebuilts 816 // directly instead. 817 addOption("--runtime-arg"); 818 addOption("-Xnorelocate"); 819 } else { 820 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, 821 "--compiler-filter=", "-Xcompiler-option"); 822 } 823 parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option"); 824 parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j", 825 "-Ximage-compiler-option"); 826 827 // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to 828 // pass the instruction-set-features/variant as an image-compiler-option. 829 // TODO: Find a better way for the instruction-set. 830#if defined(__arm__) 831 constexpr const char* instruction_set = "arm"; 832#elif defined(__aarch64__) 833 constexpr const char* instruction_set = "arm64"; 834#elif defined(__mips__) && !defined(__LP64__) 835 constexpr const char* instruction_set = "mips"; 836#elif defined(__mips__) && defined(__LP64__) 837 constexpr const char* instruction_set = "mips64"; 838#elif defined(__i386__) 839 constexpr const char* instruction_set = "x86"; 840#elif defined(__x86_64__) 841 constexpr const char* instruction_set = "x86_64"; 842#else 843 constexpr const char* instruction_set = "unknown"; 844#endif 845 // Note: it is OK to reuse the buffer, as the values are exactly the same between 846 // * compiler-option, used for runtime compilation (DexClassLoader) 847 // * image-compiler-option, used for boot-image compilation on device 848 849 // Copy the variant. 850 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set); 851 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 852 "--instruction-set-variant=", "-Ximage-compiler-option"); 853 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 854 "--instruction-set-variant=", "-Xcompiler-option"); 855 // Copy the features. 856 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set); 857 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 858 "--instruction-set-features=", "-Ximage-compiler-option"); 859 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 860 "--instruction-set-features=", "-Xcompiler-option"); 861 862 863 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); 864 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); 865 866 /* extra options; parse this late so it overrides others */ 867 property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); 868 parseExtraOpts(extraOptsBuf, NULL); 869 870 /* Set the properties for locale */ 871 { 872 strcpy(localeOption, "-Duser.locale="); 873 const std::string locale = readLocale(); 874 strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX); 875 addOption(localeOption); 876 } 877 878 // Trace files are stored in /data/misc/trace which is writable only in debug mode. 879 property_get("ro.debuggable", propBuf, "0"); 880 if (strcmp(propBuf, "1") == 0) { 881 property_get("dalvik.vm.method-trace", propBuf, "false"); 882 if (strcmp(propBuf, "true") == 0) { 883 addOption("-Xmethod-trace"); 884 parseRuntimeOption("dalvik.vm.method-trace-file", 885 methodTraceFileBuf, 886 "-Xmethod-trace-file:"); 887 parseRuntimeOption("dalvik.vm.method-trace-file-siz", 888 methodTraceFileSizeBuf, 889 "-Xmethod-trace-file-size:"); 890 property_get("dalvik.vm.method-trace-stream", propBuf, "false"); 891 if (strcmp(propBuf, "true") == 0) { 892 addOption("-Xmethod-trace-stream"); 893 } 894 } 895 } 896 897 // Native bridge library. "0" means that native bridge is disabled. 898 property_get("ro.dalvik.vm.native.bridge", propBuf, ""); 899 if (propBuf[0] == '\0') { 900 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); 901 } else if (strcmp(propBuf, "0") != 0) { 902 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, 903 "-XX:NativeBridge=%s", propBuf); 904 addOption(nativeBridgeLibrary); 905 } 906 907#if defined(__LP64__) 908 const char* cpu_abilist_property_name = "ro.product.cpu.abilist64"; 909#else 910 const char* cpu_abilist_property_name = "ro.product.cpu.abilist32"; 911#endif // defined(__LP64__) 912 property_get(cpu_abilist_property_name, propBuf, ""); 913 if (propBuf[0] == '\0') { 914 ALOGE("%s is not expected to be empty", cpu_abilist_property_name); 915 return -1; 916 } 917 snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf); 918 addOption(cpuAbiListBuf); 919 920 // Dalvik-cache pruning counter. 921 parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf, 922 "-Xzygote-max-boot-retry="); 923 924 /* 925 * When running with debug.generate-debug-info, add --generate-debug-info to 926 * the compiler options so that the boot image, if it is compiled on device, 927 * will include native debugging information. 928 */ 929 property_get("debug.generate-debug-info", propBuf, ""); 930 if (strcmp(propBuf, "true") == 0) { 931 addOption("-Xcompiler-option"); 932 addOption("--generate-debug-info"); 933 addOption("-Ximage-compiler-option"); 934 addOption("--generate-debug-info"); 935 } 936 937 /* 938 * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will 939 * contain the fingerprint and can be parsed. 940 */ 941 parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:"); 942 943 initArgs.version = JNI_VERSION_1_4; 944 initArgs.options = mOptions.editArray(); 945 initArgs.nOptions = mOptions.size(); 946 initArgs.ignoreUnrecognized = JNI_FALSE; 947 948 /* 949 * Initialize the VM. 950 * 951 * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. 952 * If this call succeeds, the VM is ready, and we can start issuing 953 * JNI calls. 954 */ 955 if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { 956 ALOGE("JNI_CreateJavaVM failed\n"); 957 return -1; 958 } 959 960 return 0; 961} 962 963char* AndroidRuntime::toSlashClassName(const char* className) 964{ 965 char* result = strdup(className); 966 for (char* cp = result; *cp != '\0'; cp++) { 967 if (*cp == '.') { 968 *cp = '/'; 969 } 970 } 971 return result; 972} 973 974/** Create a Java string from an ASCII or Latin-1 string */ 975jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { 976 if (!bytes) return NULL; 977 int length = strlen(bytes); 978 jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); 979 if (!buffer) return NULL; 980 jchar* chp = buffer; 981 for (int i = 0; i < length; i++) { 982 *chp++ = *bytes++; 983 } 984 return env->NewString(buffer, length); 985} 986 987 988/* 989 * Start the Android runtime. This involves starting the virtual machine 990 * and calling the "static void main(String[] args)" method in the class 991 * named by "className". 992 * 993 * Passes the main function two arguments, the class name and the specified 994 * options string. 995 */ 996void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote) 997{ 998 ALOGD(">>>>>> START %s uid %d <<<<<<\n", 999 className != NULL ? className : "(unknown)", getuid()); 1000 1001 static const String8 startSystemServer("start-system-server"); 1002 1003 /* 1004 * 'startSystemServer == true' means runtime is obsolete and not run from 1005 * init.rc anymore, so we print out the boot start event here. 1006 */ 1007 for (size_t i = 0; i < options.size(); ++i) { 1008 if (options[i] == startSystemServer) { 1009 /* track our progress through the boot sequence */ 1010 const int LOG_BOOT_PROGRESS_START = 3000; 1011 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); 1012 } 1013 } 1014 1015 const char* rootDir = getenv("ANDROID_ROOT"); 1016 if (rootDir == NULL) { 1017 rootDir = "/system"; 1018 if (!hasDir("/system")) { 1019 LOG_FATAL("No root directory specified, and /android does not exist."); 1020 return; 1021 } 1022 setenv("ANDROID_ROOT", rootDir, 1); 1023 } 1024 1025 //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); 1026 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); 1027 1028 /* start the virtual machine */ 1029 JniInvocation jni_invocation; 1030 jni_invocation.Init(NULL); 1031 JNIEnv* env; 1032 if (startVm(&mJavaVM, &env, zygote) != 0) { 1033 return; 1034 } 1035 onVmCreated(env); 1036 1037 /* 1038 * Register android functions. 1039 */ 1040 if (startReg(env) < 0) { 1041 ALOGE("Unable to register all android natives\n"); 1042 return; 1043 } 1044 1045 /* 1046 * We want to call main() with a String array with arguments in it. 1047 * At present we have two arguments, the class name and an option string. 1048 * Create an array to hold them. 1049 */ 1050 jclass stringClass; 1051 jobjectArray strArray; 1052 jstring classNameStr; 1053 1054 stringClass = env->FindClass("java/lang/String"); 1055 assert(stringClass != NULL); 1056 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); 1057 assert(strArray != NULL); 1058 classNameStr = env->NewStringUTF(className); 1059 assert(classNameStr != NULL); 1060 env->SetObjectArrayElement(strArray, 0, classNameStr); 1061 1062 for (size_t i = 0; i < options.size(); ++i) { 1063 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); 1064 assert(optionsStr != NULL); 1065 env->SetObjectArrayElement(strArray, i + 1, optionsStr); 1066 } 1067 1068 /* 1069 * Start VM. This thread becomes the main thread of the VM, and will 1070 * not return until the VM exits. 1071 */ 1072 char* slashClassName = toSlashClassName(className); 1073 jclass startClass = env->FindClass(slashClassName); 1074 if (startClass == NULL) { 1075 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); 1076 /* keep going */ 1077 } else { 1078 jmethodID startMeth = env->GetStaticMethodID(startClass, "main", 1079 "([Ljava/lang/String;)V"); 1080 if (startMeth == NULL) { 1081 ALOGE("JavaVM unable to find main() in '%s'\n", className); 1082 /* keep going */ 1083 } else { 1084 env->CallStaticVoidMethod(startClass, startMeth, strArray); 1085 1086#if 0 1087 if (env->ExceptionCheck()) 1088 threadExitUncaughtException(env); 1089#endif 1090 } 1091 } 1092 free(slashClassName); 1093 1094 ALOGD("Shutting down VM\n"); 1095 if (mJavaVM->DetachCurrentThread() != JNI_OK) 1096 ALOGW("Warning: unable to detach main thread\n"); 1097 if (mJavaVM->DestroyJavaVM() != 0) 1098 ALOGW("Warning: VM did not shut down cleanly\n"); 1099} 1100 1101void AndroidRuntime::exit(int code) 1102{ 1103 if (mExitWithoutCleanup) { 1104 ALOGI("VM exiting with result code %d, cleanup skipped.", code); 1105 ::_exit(code); 1106 } else { 1107 ALOGI("VM exiting with result code %d.", code); 1108 onExit(code); 1109 ::exit(code); 1110 } 1111} 1112 1113void AndroidRuntime::onVmCreated(JNIEnv* env) 1114{ 1115 // If AndroidRuntime had anything to do here, we'd have done it in 'start'. 1116} 1117 1118/* 1119 * Get the JNIEnv pointer for this thread. 1120 * 1121 * Returns NULL if the slot wasn't allocated or populated. 1122 */ 1123/*static*/ JNIEnv* AndroidRuntime::getJNIEnv() 1124{ 1125 JNIEnv* env; 1126 JavaVM* vm = AndroidRuntime::getJavaVM(); 1127 assert(vm != NULL); 1128 1129 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) 1130 return NULL; 1131 return env; 1132} 1133 1134/* 1135 * Makes the current thread visible to the VM. 1136 * 1137 * The JNIEnv pointer returned is only valid for the current thread, and 1138 * thus must be tucked into thread-local storage. 1139 */ 1140static int javaAttachThread(const char* threadName, JNIEnv** pEnv) 1141{ 1142 JavaVMAttachArgs args; 1143 JavaVM* vm; 1144 jint result; 1145 1146 vm = AndroidRuntime::getJavaVM(); 1147 assert(vm != NULL); 1148 1149 args.version = JNI_VERSION_1_4; 1150 args.name = (char*) threadName; 1151 args.group = NULL; 1152 1153 result = vm->AttachCurrentThread(pEnv, (void*) &args); 1154 if (result != JNI_OK) 1155 ALOGI("NOTE: attach of thread '%s' failed\n", threadName); 1156 1157 return result; 1158} 1159 1160/* 1161 * Detach the current thread from the set visible to the VM. 1162 */ 1163static int javaDetachThread(void) 1164{ 1165 JavaVM* vm; 1166 jint result; 1167 1168 vm = AndroidRuntime::getJavaVM(); 1169 assert(vm != NULL); 1170 1171 result = vm->DetachCurrentThread(); 1172 if (result != JNI_OK) 1173 ALOGE("ERROR: thread detach failed\n"); 1174 return result; 1175} 1176 1177/* 1178 * When starting a native thread that will be visible from the VM, we 1179 * bounce through this to get the right attach/detach action. 1180 * Note that this function calls free(args) 1181 */ 1182/*static*/ int AndroidRuntime::javaThreadShell(void* args) { 1183 void* start = ((void**)args)[0]; 1184 void* userData = ((void **)args)[1]; 1185 char* name = (char*) ((void **)args)[2]; // we own this storage 1186 free(args); 1187 JNIEnv* env; 1188 int result; 1189 1190 /* hook us into the VM */ 1191 if (javaAttachThread(name, &env) != JNI_OK) 1192 return -1; 1193 1194 /* start the thread running */ 1195 result = (*(android_thread_func_t)start)(userData); 1196 1197 /* unhook us */ 1198 javaDetachThread(); 1199 free(name); 1200 1201 return result; 1202} 1203 1204/* 1205 * This is invoked from androidCreateThreadEtc() via the callback 1206 * set with androidSetCreateThreadFunc(). 1207 * 1208 * We need to create the new thread in such a way that it gets hooked 1209 * into the VM before it really starts executing. 1210 */ 1211/*static*/ int AndroidRuntime::javaCreateThreadEtc( 1212 android_thread_func_t entryFunction, 1213 void* userData, 1214 const char* threadName, 1215 int32_t threadPriority, 1216 size_t threadStackSize, 1217 android_thread_id_t* threadId) 1218{ 1219 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free 1220 int result; 1221 1222 LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc"); 1223 1224 args[0] = (void*) entryFunction; 1225 args[1] = userData; 1226 args[2] = (void*) strdup(threadName); // javaThreadShell must free 1227 1228 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, 1229 threadName, threadPriority, threadStackSize, threadId); 1230 return result; 1231} 1232 1233/* 1234 * Create a thread that is visible from the VM. 1235 * 1236 * This is called from elsewhere in the library. 1237 */ 1238/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, 1239 void (*start)(void *), void* arg) 1240{ 1241 android_thread_id_t threadId = 0; 1242 javaCreateThreadEtc((android_thread_func_t) start, arg, name, 1243 ANDROID_PRIORITY_DEFAULT, 0, &threadId); 1244 return threadId; 1245} 1246 1247#if 0 1248static void quickTest(void* arg) 1249{ 1250 const char* str = (const char*) arg; 1251 1252 printf("In quickTest: %s\n", str); 1253} 1254#endif 1255 1256#ifdef NDEBUG 1257 #define REG_JNI(name) { name } 1258 struct RegJNIRec { 1259 int (*mProc)(JNIEnv*); 1260 }; 1261#else 1262 #define REG_JNI(name) { name, #name } 1263 struct RegJNIRec { 1264 int (*mProc)(JNIEnv*); 1265 const char* mName; 1266 }; 1267#endif 1268 1269typedef void (*RegJAMProc)(); 1270 1271static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) 1272{ 1273 for (size_t i = 0; i < count; i++) { 1274 if (array[i].mProc(env) < 0) { 1275#ifndef NDEBUG 1276 ALOGD("----------!!! %s failed to load\n", array[i].mName); 1277#endif 1278 return -1; 1279 } 1280 } 1281 return 0; 1282} 1283 1284static const RegJNIRec gRegJNI[] = { 1285 REG_JNI(register_com_android_internal_os_RuntimeInit), 1286 REG_JNI(register_com_android_internal_os_ZygoteInit), 1287 REG_JNI(register_android_os_SystemClock), 1288 REG_JNI(register_android_util_EventLog), 1289 REG_JNI(register_android_util_Log), 1290 REG_JNI(register_android_util_MemoryIntArray), 1291 REG_JNI(register_android_util_PathParser), 1292 REG_JNI(register_android_app_admin_SecurityLog), 1293 REG_JNI(register_android_content_AssetManager), 1294 REG_JNI(register_android_content_StringBlock), 1295 REG_JNI(register_android_content_XmlBlock), 1296 REG_JNI(register_android_text_AndroidCharacter), 1297 REG_JNI(register_android_text_StaticLayout), 1298 REG_JNI(register_android_text_AndroidBidi), 1299 REG_JNI(register_android_view_InputDevice), 1300 REG_JNI(register_android_view_KeyCharacterMap), 1301 REG_JNI(register_android_os_Process), 1302 REG_JNI(register_android_os_SystemProperties), 1303 REG_JNI(register_android_os_Binder), 1304 REG_JNI(register_android_os_Parcel), 1305 REG_JNI(register_android_os_HwBinder), 1306 REG_JNI(register_android_os_HwBlob), 1307 REG_JNI(register_android_os_HwParcel), 1308 REG_JNI(register_android_os_HwRemoteBinder), 1309 REG_JNI(register_android_nio_utils), 1310 REG_JNI(register_android_graphics_Canvas), 1311 REG_JNI(register_android_graphics_Graphics), 1312 REG_JNI(register_android_view_DisplayEventReceiver), 1313 REG_JNI(register_android_view_RenderNode), 1314 REG_JNI(register_android_view_RenderNodeAnimator), 1315 REG_JNI(register_android_view_GraphicBuffer), 1316 REG_JNI(register_android_view_DisplayListCanvas), 1317 REG_JNI(register_android_view_HardwareLayer), 1318 REG_JNI(register_android_view_ThreadedRenderer), 1319 REG_JNI(register_android_view_Surface), 1320 REG_JNI(register_android_view_SurfaceControl), 1321 REG_JNI(register_android_view_SurfaceSession), 1322 REG_JNI(register_android_view_TextureView), 1323 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), 1324 REG_JNI(register_com_google_android_gles_jni_EGLImpl), 1325 REG_JNI(register_com_google_android_gles_jni_GLImpl), 1326 REG_JNI(register_android_opengl_jni_EGL14), 1327 REG_JNI(register_android_opengl_jni_EGLExt), 1328 REG_JNI(register_android_opengl_jni_GLES10), 1329 REG_JNI(register_android_opengl_jni_GLES10Ext), 1330 REG_JNI(register_android_opengl_jni_GLES11), 1331 REG_JNI(register_android_opengl_jni_GLES11Ext), 1332 REG_JNI(register_android_opengl_jni_GLES20), 1333 REG_JNI(register_android_opengl_jni_GLES30), 1334 REG_JNI(register_android_opengl_jni_GLES31), 1335 REG_JNI(register_android_opengl_jni_GLES31Ext), 1336 REG_JNI(register_android_opengl_jni_GLES32), 1337 1338 REG_JNI(register_android_graphics_Bitmap), 1339 REG_JNI(register_android_graphics_BitmapFactory), 1340 REG_JNI(register_android_graphics_BitmapRegionDecoder), 1341 REG_JNI(register_android_graphics_Camera), 1342 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), 1343 REG_JNI(register_android_graphics_CanvasProperty), 1344 REG_JNI(register_android_graphics_ColorFilter), 1345 REG_JNI(register_android_graphics_DrawFilter), 1346 REG_JNI(register_android_graphics_FontFamily), 1347 REG_JNI(register_android_graphics_Interpolator), 1348 REG_JNI(register_android_graphics_LayerRasterizer), 1349 REG_JNI(register_android_graphics_MaskFilter), 1350 REG_JNI(register_android_graphics_Matrix), 1351 REG_JNI(register_android_graphics_Movie), 1352 REG_JNI(register_android_graphics_NinePatch), 1353 REG_JNI(register_android_graphics_Paint), 1354 REG_JNI(register_android_graphics_Path), 1355 REG_JNI(register_android_graphics_PathMeasure), 1356 REG_JNI(register_android_graphics_PathEffect), 1357 REG_JNI(register_android_graphics_Picture), 1358 REG_JNI(register_android_graphics_PorterDuff), 1359 REG_JNI(register_android_graphics_Rasterizer), 1360 REG_JNI(register_android_graphics_Region), 1361 REG_JNI(register_android_graphics_Shader), 1362 REG_JNI(register_android_graphics_SurfaceTexture), 1363 REG_JNI(register_android_graphics_Typeface), 1364 REG_JNI(register_android_graphics_Xfermode), 1365 REG_JNI(register_android_graphics_YuvImage), 1366 REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable), 1367 REG_JNI(register_android_graphics_drawable_VectorDrawable), 1368 REG_JNI(register_android_graphics_pdf_PdfDocument), 1369 REG_JNI(register_android_graphics_pdf_PdfEditor), 1370 REG_JNI(register_android_graphics_pdf_PdfRenderer), 1371 1372 REG_JNI(register_android_database_CursorWindow), 1373 REG_JNI(register_android_database_SQLiteConnection), 1374 REG_JNI(register_android_database_SQLiteGlobal), 1375 REG_JNI(register_android_database_SQLiteDebug), 1376 REG_JNI(register_android_os_Debug), 1377 REG_JNI(register_android_os_FileObserver), 1378 REG_JNI(register_android_os_GraphicsEnvironment), 1379 REG_JNI(register_android_os_MessageQueue), 1380 REG_JNI(register_android_os_SELinux), 1381 REG_JNI(register_android_os_seccomp), 1382 REG_JNI(register_android_os_Trace), 1383 REG_JNI(register_android_os_UEventObserver), 1384 REG_JNI(register_android_net_LocalSocketImpl), 1385 REG_JNI(register_android_net_NetworkUtils), 1386 REG_JNI(register_android_net_TrafficStats), 1387 REG_JNI(register_android_os_MemoryFile), 1388 REG_JNI(register_com_android_internal_os_PathClassLoaderFactory), 1389 REG_JNI(register_com_android_internal_os_Zygote), 1390 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), 1391 REG_JNI(register_android_hardware_Camera), 1392 REG_JNI(register_android_hardware_camera2_CameraMetadata), 1393 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), 1394 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), 1395 REG_JNI(register_android_hardware_camera2_DngCreator), 1396 REG_JNI(register_android_hardware_Radio), 1397 REG_JNI(register_android_hardware_SensorManager), 1398 REG_JNI(register_android_hardware_SerialPort), 1399 REG_JNI(register_android_hardware_SoundTrigger), 1400 REG_JNI(register_android_hardware_UsbDevice), 1401 REG_JNI(register_android_hardware_UsbDeviceConnection), 1402 REG_JNI(register_android_hardware_UsbRequest), 1403 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), 1404 REG_JNI(register_android_hardware_location_ContextHubService), 1405 REG_JNI(register_android_media_AudioRecord), 1406 REG_JNI(register_android_media_AudioSystem), 1407 REG_JNI(register_android_media_AudioTrack), 1408 REG_JNI(register_android_media_JetPlayer), 1409 REG_JNI(register_android_media_RemoteDisplay), 1410 REG_JNI(register_android_media_ToneGenerator), 1411 1412 REG_JNI(register_android_opengl_classes), 1413 REG_JNI(register_android_server_NetworkManagementSocketTagger), 1414 REG_JNI(register_android_ddm_DdmHandleNativeHeap), 1415 REG_JNI(register_android_backup_BackupDataInput), 1416 REG_JNI(register_android_backup_BackupDataOutput), 1417 REG_JNI(register_android_backup_FileBackupHelperBase), 1418 REG_JNI(register_android_backup_BackupHelperDispatcher), 1419 REG_JNI(register_android_app_backup_FullBackup), 1420 REG_JNI(register_android_app_Activity), 1421 REG_JNI(register_android_app_ActivityThread), 1422 REG_JNI(register_android_app_ApplicationLoaders), 1423 REG_JNI(register_android_app_NativeActivity), 1424 REG_JNI(register_android_util_jar_StrictJarFile), 1425 REG_JNI(register_android_view_InputChannel), 1426 REG_JNI(register_android_view_InputEventReceiver), 1427 REG_JNI(register_android_view_InputEventSender), 1428 REG_JNI(register_android_view_InputQueue), 1429 REG_JNI(register_android_view_KeyEvent), 1430 REG_JNI(register_android_view_MotionEvent), 1431 REG_JNI(register_android_view_PointerIcon), 1432 REG_JNI(register_android_view_VelocityTracker), 1433 1434 REG_JNI(register_android_content_res_ObbScanner), 1435 REG_JNI(register_android_content_res_Configuration), 1436 1437 REG_JNI(register_android_animation_PropertyValuesHolder), 1438 REG_JNI(register_com_android_internal_content_NativeLibraryHelper), 1439 REG_JNI(register_com_android_internal_net_NetworkStatsFactory), 1440 1441}; 1442 1443/* 1444 * Register android native functions with the VM. 1445 */ 1446/*static*/ int AndroidRuntime::startReg(JNIEnv* env) 1447{ 1448 ATRACE_NAME("RegisterAndroidNatives"); 1449 /* 1450 * This hook causes all future threads created in this process to be 1451 * attached to the JavaVM. (This needs to go away in favor of JNI 1452 * Attach calls.) 1453 */ 1454 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); 1455 1456 ALOGV("--- registering native functions ---\n"); 1457 1458 /* 1459 * Every "register" function calls one or more things that return 1460 * a local reference (e.g. FindClass). Because we haven't really 1461 * started the VM yet, they're all getting stored in the base frame 1462 * and never released. Use Push/Pop to manage the storage. 1463 */ 1464 env->PushLocalFrame(200); 1465 1466 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { 1467 env->PopLocalFrame(NULL); 1468 return -1; 1469 } 1470 env->PopLocalFrame(NULL); 1471 1472 //createJavaThread("fubar", quickTest, (void*) "hello"); 1473 1474 return 0; 1475} 1476 1477AndroidRuntime* AndroidRuntime::getRuntime() 1478{ 1479 return gCurRuntime; 1480} 1481 1482/** 1483 * Used by surface flinger's DdmConnection to register native methods from 1484 * the framework. 1485 */ 1486extern "C" jint registerFrameworkNatives(JNIEnv* env) { 1487 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1488} 1489} // namespace android 1490