AndroidRuntime.cpp revision a5511eb64876c49bede91a0307a644452a8bc9e2
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define ATRACE_TAG ATRACE_TAG_DALVIK 18#define LOG_TAG "AndroidRuntime" 19#define LOG_NDEBUG 1 20 21#include <android_runtime/AndroidRuntime.h> 22 23#include <android-base/properties.h> 24#include <binder/IBinder.h> 25#include <binder/IPCThreadState.h> 26#include <binder/IServiceManager.h> 27#include <utils/Log.h> 28#include <utils/misc.h> 29#include <utils/Trace.h> 30#include <binder/Parcel.h> 31#include <utils/threads.h> 32#include <cutils/properties.h> 33 34#include <SkGraphics.h> 35 36#include "jni.h" 37#include <nativehelper/JNIHelp.h> 38#include <nativehelper/JniInvocation.h> 39#include "android_util_Binder.h" 40 41#include <stdio.h> 42#include <signal.h> 43#include <sys/stat.h> 44#include <sys/types.h> 45#include <signal.h> 46#include <dirent.h> 47#include <assert.h> 48 49#include <string> 50#include <vector> 51 52using namespace android; 53using android::base::GetProperty; 54 55extern int register_android_os_Binder(JNIEnv* env); 56extern int register_android_os_Process(JNIEnv* env); 57extern int register_android_graphics_Bitmap(JNIEnv*); 58extern int register_android_graphics_BitmapFactory(JNIEnv*); 59extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*); 60extern int register_android_graphics_Camera(JNIEnv* env); 61extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env); 62extern int register_android_graphics_GraphicBuffer(JNIEnv* env); 63extern int register_android_graphics_Graphics(JNIEnv* env); 64extern int register_android_graphics_Interpolator(JNIEnv* env); 65extern int register_android_graphics_MaskFilter(JNIEnv* env); 66extern int register_android_graphics_Movie(JNIEnv* env); 67extern int register_android_graphics_NinePatch(JNIEnv*); 68extern int register_android_graphics_PathEffect(JNIEnv* env); 69extern int register_android_graphics_Shader(JNIEnv* env); 70extern int register_android_graphics_Typeface(JNIEnv* env); 71extern int register_android_graphics_YuvImage(JNIEnv* env); 72 73extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env); 74extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env); 75extern int register_android_opengl_jni_EGL14(JNIEnv* env); 76extern int register_android_opengl_jni_EGLExt(JNIEnv* env); 77extern int register_android_opengl_jni_GLES10(JNIEnv* env); 78extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env); 79extern int register_android_opengl_jni_GLES11(JNIEnv* env); 80extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env); 81extern int register_android_opengl_jni_GLES20(JNIEnv* env); 82extern int register_android_opengl_jni_GLES30(JNIEnv* env); 83extern int register_android_opengl_jni_GLES31(JNIEnv* env); 84extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env); 85extern int register_android_opengl_jni_GLES32(JNIEnv* env); 86 87extern int register_android_hardware_Camera(JNIEnv *env); 88extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env); 89extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env); 90extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env); 91extern int register_android_hardware_camera2_DngCreator(JNIEnv *env); 92extern int register_android_hardware_HardwareBuffer(JNIEnv *env); 93extern int register_android_hardware_SensorManager(JNIEnv *env); 94extern int register_android_hardware_SerialPort(JNIEnv *env); 95extern int register_android_hardware_SoundTrigger(JNIEnv *env); 96extern int register_android_hardware_UsbDevice(JNIEnv *env); 97extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env); 98extern int register_android_hardware_UsbRequest(JNIEnv *env); 99extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env); 100 101extern int register_android_media_AudioRecord(JNIEnv *env); 102extern int register_android_media_AudioSystem(JNIEnv *env); 103extern int register_android_media_AudioTrack(JNIEnv *env); 104extern int register_android_media_JetPlayer(JNIEnv *env); 105extern int register_android_media_ToneGenerator(JNIEnv *env); 106 107namespace android { 108 109/* 110 * JNI-based registration functions. Note these are properly contained in 111 * namespace android. 112 */ 113extern int register_android_app_admin_SecurityLog(JNIEnv* env); 114extern int register_android_content_AssetManager(JNIEnv* env); 115extern int register_android_util_EventLog(JNIEnv* env); 116extern int register_android_util_StatsLog(JNIEnv* env); 117extern int register_android_util_Log(JNIEnv* env); 118extern int register_android_util_MemoryIntArray(JNIEnv* env); 119extern int register_android_util_PathParser(JNIEnv* env); 120extern int register_android_content_StringBlock(JNIEnv* env); 121extern int register_android_content_XmlBlock(JNIEnv* env); 122extern int register_android_graphics_Canvas(JNIEnv* env); 123extern int register_android_graphics_CanvasProperty(JNIEnv* env); 124extern int register_android_graphics_ColorFilter(JNIEnv* env); 125extern int register_android_graphics_DrawFilter(JNIEnv* env); 126extern int register_android_graphics_FontFamily(JNIEnv* env); 127extern int register_android_graphics_Matrix(JNIEnv* env); 128extern int register_android_graphics_Paint(JNIEnv* env); 129extern int register_android_graphics_Path(JNIEnv* env); 130extern int register_android_graphics_PathMeasure(JNIEnv* env); 131extern int register_android_graphics_Picture(JNIEnv*); 132extern int register_android_graphics_Region(JNIEnv* env); 133extern int register_android_graphics_SurfaceTexture(JNIEnv* env); 134extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env); 135extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env); 136extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env); 137extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env); 138extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env); 139extern int register_android_view_DisplayEventReceiver(JNIEnv* env); 140extern int register_android_view_DisplayListCanvas(JNIEnv* env); 141extern int register_android_view_HardwareLayer(JNIEnv* env); 142extern int register_android_view_RenderNode(JNIEnv* env); 143extern int register_android_view_RenderNodeAnimator(JNIEnv* env); 144extern int register_android_view_Surface(JNIEnv* env); 145extern int register_android_view_SurfaceControl(JNIEnv* env); 146extern int register_android_view_SurfaceSession(JNIEnv* env); 147extern int register_android_view_TextureView(JNIEnv* env); 148extern int register_android_view_ThreadedRenderer(JNIEnv* env); 149extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env); 150extern int register_android_database_CursorWindow(JNIEnv* env); 151extern int register_android_database_SQLiteConnection(JNIEnv* env); 152extern int register_android_database_SQLiteGlobal(JNIEnv* env); 153extern int register_android_database_SQLiteDebug(JNIEnv* env); 154extern int register_android_nio_utils(JNIEnv* env); 155extern int register_android_os_Debug(JNIEnv* env); 156extern int register_android_os_GraphicsEnvironment(JNIEnv* env); 157extern int register_android_os_HwBinder(JNIEnv *env); 158extern int register_android_os_HwBlob(JNIEnv *env); 159extern int register_android_os_HwParcel(JNIEnv *env); 160extern int register_android_os_HwRemoteBinder(JNIEnv *env); 161extern int register_android_os_MessageQueue(JNIEnv* env); 162extern int register_android_os_Parcel(JNIEnv* env); 163extern int register_android_os_SELinux(JNIEnv* env); 164extern int register_android_os_VintfObject(JNIEnv *env); 165extern int register_android_os_VintfRuntimeInfo(JNIEnv *env); 166extern int register_android_os_seccomp(JNIEnv* env); 167extern int register_android_os_SystemProperties(JNIEnv *env); 168extern int register_android_os_SystemClock(JNIEnv* env); 169extern int register_android_os_Trace(JNIEnv* env); 170extern int register_android_os_FileObserver(JNIEnv *env); 171extern int register_android_os_UEventObserver(JNIEnv* env); 172extern int register_android_os_MemoryFile(JNIEnv* env); 173extern int register_android_os_SharedMemory(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_Hyphenator(JNIEnv *env); 179extern int register_android_text_StaticLayout(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_ClassLoaderFactory(JNIEnv* env); 210extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env); 211extern int register_com_android_internal_os_Zygote(JNIEnv *env); 212extern int register_com_android_internal_os_ZygoteInit(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_nativeZygoteInit(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(); 272 273 // 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} 283 284/* 285 * Register native methods using JNI. 286 */ 287/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env, 288 const char* className, const JNINativeMethod* gMethods, int numMethods) 289{ 290 return jniRegisterNativeMethods(env, className, gMethods, numMethods); 291} 292 293void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) { 294 if (setProcName) { 295 int len = strlen(argv0); 296 if (len < 15) { 297 pthread_setname_np(pthread_self(), argv0); 298 } else { 299 pthread_setname_np(pthread_self(), argv0 + len - 15); 300 } 301 } 302 memset(mArgBlockStart, 0, mArgBlockLength); 303 strlcpy(mArgBlockStart, argv0, mArgBlockLength); 304} 305 306status_t AndroidRuntime::callMain(const String8& className, jclass clazz, 307 const Vector<String8>& args) 308{ 309 JNIEnv* env; 310 jmethodID methodId; 311 312 ALOGD("Calling main entry %s", className.string()); 313 314 env = getJNIEnv(); 315 if (clazz == NULL || env == NULL) { 316 return UNKNOWN_ERROR; 317 } 318 319 methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V"); 320 if (methodId == NULL) { 321 ALOGE("ERROR: could not find method %s.main(String[])\n", className.string()); 322 return UNKNOWN_ERROR; 323 } 324 325 /* 326 * We want to call main() with a String array with our arguments in it. 327 * Create an array and populate it. 328 */ 329 jclass stringClass; 330 jobjectArray strArray; 331 332 const size_t numArgs = args.size(); 333 stringClass = env->FindClass("java/lang/String"); 334 strArray = env->NewObjectArray(numArgs, stringClass, NULL); 335 336 for (size_t i = 0; i < numArgs; i++) { 337 jstring argStr = env->NewStringUTF(args[i].string()); 338 env->SetObjectArrayElement(strArray, i, argStr); 339 } 340 341 env->CallStaticVoidMethod(clazz, methodId, strArray); 342 return NO_ERROR; 343} 344 345/* 346 * The VM calls this through the "exit" hook. 347 */ 348static void runtime_exit(int code) 349{ 350 gCurRuntime->exit(code); 351} 352 353/* 354 * The VM calls this through the "vfprintf" hook. 355 * 356 * We ignore "fp" and just write the results to the log file. 357 */ 358static void runtime_vfprintf(FILE* fp, const char* format, va_list ap) 359{ 360 LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap); 361} 362 363/** 364 * The VM calls this when mutex contention debugging is enabled to 365 * determine whether or not the blocked thread was a "sensitive thread" 366 * for user responsiveness/smoothess. 367 * 368 * Our policy for this is whether or not we're tracing any StrictMode 369 * events on this thread (which we might've inherited via Binder calls 370 * into us) 371 */ 372static bool runtime_isSensitiveThread() { 373 IPCThreadState* state = IPCThreadState::selfOrNull(); 374 return state && state->getStrictModePolicy() != 0; 375} 376 377static int hasDir(const char* dir) 378{ 379 struct stat s; 380 int res = stat(dir, &s); 381 if (res == 0) { 382 return S_ISDIR(s.st_mode); 383 } 384 return 0; 385} 386 387static bool hasFile(const char* file) { 388 struct stat s; 389 int res = stat(file, &s); 390 if (res == 0) { 391 return S_ISREG(s.st_mode); 392 } 393 return false; 394} 395 396/* 397 * Read the persistent locale. Inspects the following system properties 398 * (in order) and returns the first non-empty property in the list : 399 * 400 * (1) persist.sys.locale 401 * (2) persist.sys.language/country/localevar (country and localevar are 402 * inspected iff. language is non-empty. 403 * (3) ro.product.locale 404 * (4) ro.product.locale.language/region 405 * 406 * Note that we need to inspect persist.sys.language/country/localevar to 407 * preserve language settings for devices that are upgrading from Lollipop 408 * to M. The same goes for ro.product.locale.language/region as well. 409 */ 410const std::string readLocale() 411{ 412 const std::string locale = GetProperty("persist.sys.locale", ""); 413 if (!locale.empty()) { 414 return locale; 415 } 416 417 const std::string language = GetProperty("persist.sys.language", ""); 418 if (!language.empty()) { 419 const std::string country = GetProperty("persist.sys.country", ""); 420 const std::string variant = GetProperty("persist.sys.localevar", ""); 421 422 std::string out = language; 423 if (!country.empty()) { 424 out = out + "-" + country; 425 } 426 427 if (!variant.empty()) { 428 out = out + "-" + variant; 429 } 430 431 return out; 432 } 433 434 const std::string productLocale = GetProperty("ro.product.locale", ""); 435 if (!productLocale.empty()) { 436 return productLocale; 437 } 438 439 // If persist.sys.locale and ro.product.locale are missing, 440 // construct a locale value from the individual locale components. 441 const std::string productLanguage = GetProperty("ro.product.locale.language", "en"); 442 const std::string productRegion = GetProperty("ro.product.locale.region", "US"); 443 444 return productLanguage + "-" + productRegion; 445} 446 447void AndroidRuntime::addOption(const char* optionString, void* extraInfo) 448{ 449 JavaVMOption opt; 450 opt.optionString = optionString; 451 opt.extraInfo = extraInfo; 452 mOptions.add(opt); 453} 454 455/* 456 * Parse a property containing space-separated options that should be 457 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap". 458 * 459 * This will cut up "extraOptsBuf" as we chop it into individual options. 460 * 461 * If "quotingArg" is non-null, it is passed before each extra option in mOptions. 462 * 463 * Adds the strings, if any, to mOptions. 464 */ 465void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg) 466{ 467 char* start = extraOptsBuf; 468 char* end = NULL; 469 while (*start != '\0') { 470 while (*start == ' ') /* skip leading whitespace */ 471 start++; 472 if (*start == '\0') /* was trailing ws, bail */ 473 break; 474 475 end = start+1; 476 while (*end != ' ' && *end != '\0') /* find end of token */ 477 end++; 478 if (*end == ' ') 479 *end++ = '\0'; /* mark end, advance to indicate more */ 480 481 if (quotingArg != NULL) { 482 addOption(quotingArg); 483 } 484 addOption(start); 485 start = end; 486 } 487} 488 489/* 490 * Reads a "property" into "buffer" with a default of "defaultArg". If 491 * the property is non-empty, it is treated as a runtime option such 492 * as "-Xmx32m". 493 * 494 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 495 * 496 * If an argument is found, it is added to mOptions. 497 * 498 * If an option is found, it is added to mOptions and true is 499 * returned. Otherwise false is returned. 500 */ 501bool AndroidRuntime::parseRuntimeOption(const char* property, 502 char* buffer, 503 const char* runtimeArg, 504 const char* defaultArg) 505{ 506 strcpy(buffer, runtimeArg); 507 size_t runtimeArgLen = strlen(runtimeArg); 508 property_get(property, buffer+runtimeArgLen, defaultArg); 509 if (buffer[runtimeArgLen] == '\0') { 510 return false; 511 } 512 addOption(buffer); 513 return true; 514} 515 516/* 517 * Reads a "property" into "buffer". If the property is non-empty, it 518 * is treated as a dex2oat compiler option that should be 519 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified". 520 * 521 * The "compilerArg" is a prefix for the option such as "--compiler-filter=". 522 * 523 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 524 * 525 * If an option is found, it is added to mOptions and true is 526 * returned. Otherwise false is returned. 527 */ 528bool AndroidRuntime::parseCompilerOption(const char* property, 529 char* buffer, 530 const char* compilerArg, 531 const char* quotingArg) 532{ 533 strcpy(buffer, compilerArg); 534 size_t compilerArgLen = strlen(compilerArg); 535 property_get(property, buffer+compilerArgLen, ""); 536 if (buffer[compilerArgLen] == '\0') { 537 return false; 538 } 539 addOption(quotingArg); 540 addOption(buffer); 541 return true; 542} 543 544/* 545 * Reads a "property" into "buffer". If the property is non-empty, it 546 * is treated as a dex2oat compiler runtime option that should be 547 * passed as a quoted option, e.g. "-Ximage-compiler-option 548 * --runtime-arg -Ximage-compiler-option -Xmx32m". 549 * 550 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 551 * 552 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 553 * 554 * If an option is found, it is added to mOptions and true is 555 * returned. Otherwise false is returned. 556 */ 557bool AndroidRuntime::parseCompilerRuntimeOption(const char* property, 558 char* buffer, 559 const char* runtimeArg, 560 const char* quotingArg) 561{ 562 strcpy(buffer, runtimeArg); 563 size_t runtimeArgLen = strlen(runtimeArg); 564 property_get(property, buffer+runtimeArgLen, ""); 565 if (buffer[runtimeArgLen] == '\0') { 566 return false; 567 } 568 addOption(quotingArg); 569 addOption("--runtime-arg"); 570 addOption(quotingArg); 571 addOption(buffer); 572 return true; 573} 574 575/* 576 * Start the Dalvik Virtual Machine. 577 * 578 * Various arguments, most determined by system properties, are passed in. 579 * The "mOptions" vector is updated. 580 * 581 * CAUTION: when adding options in here, be careful not to put the 582 * char buffer inside a nested scope. Adding the buffer to the 583 * options using mOptions.add() does not copy the buffer, so if the 584 * buffer goes out of scope the option may be overwritten. It's best 585 * to put the buffer at the top of the function so that it is more 586 * unlikely that someone will surround it in a scope at a later time 587 * and thus introduce a bug. 588 * 589 * Returns 0 on success. 590 */ 591int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote) 592{ 593 JavaVMInitArgs initArgs; 594 char propBuf[PROPERTY_VALUE_MAX]; 595 char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX]; 596 char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX]; 597 char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 598 char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 599 char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX]; 600 char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX]; 601 char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX]; 602 char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX]; 603 char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX]; 604 char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX]; 605 char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX]; 606 char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX]; 607 char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX]; 608 char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX]; 609 char hotstartupsamplesOptsBuf[sizeof("-Xps-hot-startup-method-samples:")-1 + PROPERTY_VALUE_MAX]; 610 char madviseRandomOptsBuf[sizeof("-XX:MadviseRandomAccess:")-1 + PROPERTY_VALUE_MAX]; 611 char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX]; 612 char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX]; 613 char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX]; 614 char foregroundHeapGrowthMultiplierOptsBuf[ 615 sizeof("-XX:ForegroundHeapGrowthMultiplier=")-1 + PROPERTY_VALUE_MAX]; 616 char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX]; 617 char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 618 char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 619 char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 620 char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 621 char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 622 char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 623 char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 624 char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 625 char dex2oat_isa_variant_key[PROPERTY_KEY_MAX]; 626 char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX]; 627 char dex2oat_isa_features_key[PROPERTY_KEY_MAX]; 628 char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX]; 629 char dex2oatFlagsBuf[PROPERTY_VALUE_MAX]; 630 char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX]; 631 char extraOptsBuf[PROPERTY_VALUE_MAX]; 632 char voldDecryptBuf[PROPERTY_VALUE_MAX]; 633 enum { 634 kEMDefault, 635 kEMIntPortable, 636 kEMIntFast, 637 kEMJitCompiler, 638 } executionMode = kEMDefault; 639 char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX]; 640 char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX]; 641 char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX]; 642 char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX]; 643 char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX]; 644 char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX]; 645 std::string fingerprintBuf; 646 647 bool checkJni = false; 648 property_get("dalvik.vm.checkjni", propBuf, ""); 649 if (strcmp(propBuf, "true") == 0) { 650 checkJni = true; 651 } else if (strcmp(propBuf, "false") != 0) { 652 /* property is neither true nor false; fall back on kernel parameter */ 653 property_get("ro.kernel.android.checkjni", propBuf, ""); 654 if (propBuf[0] == '1') { 655 checkJni = true; 656 } 657 } 658 ALOGV("CheckJNI is %s\n", checkJni ? "ON" : "OFF"); 659 if (checkJni) { 660 /* extended JNI checking */ 661 addOption("-Xcheck:jni"); 662 663 /* with -Xcheck:jni, this provides a JNI function call trace */ 664 //addOption("-verbose:jni"); 665 } 666 667 property_get("dalvik.vm.execution-mode", propBuf, ""); 668 if (strcmp(propBuf, "int:portable") == 0) { 669 executionMode = kEMIntPortable; 670 } else if (strcmp(propBuf, "int:fast") == 0) { 671 executionMode = kEMIntFast; 672 } else if (strcmp(propBuf, "int:jit") == 0) { 673 executionMode = kEMJitCompiler; 674 } 675 676 // If dalvik.vm.stack-trace-dir is set, it enables the "new" stack trace 677 // dump scheme and a new file is created for each stack dump. If it isn't set, 678 // the old scheme is enabled. 679 property_get("dalvik.vm.stack-trace-dir", propBuf, ""); 680 if (strlen(propBuf) > 0) { 681 addOption("-Xusetombstonedtraces"); 682 } else { 683 parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:"); 684 } 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 /* Foreground heap growth multiplier option */ 720 parseRuntimeOption("dalvik.vm.foreground-heap-growth-multiplier", 721 foregroundHeapGrowthMultiplierOptsBuf, 722 "-XX:ForegroundHeapGrowthMultiplier="); 723 724 /* 725 * JIT related options. 726 */ 727 parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:"); 728 parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:"); 729 parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:"); 730 parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:"); 731 property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, ""); 732 if (strcmp(useJitProfilesOptsBuf, "true") == 0) { 733 addOption("-Xjitsaveprofilinginfo"); 734 } 735 736 parseRuntimeOption("dalvik.vm.jitprithreadweight", 737 jitprithreadweightOptBuf, 738 "-Xjitprithreadweight:"); 739 740 parseRuntimeOption("dalvik.vm.jittransitionweight", 741 jittransitionweightOptBuf, 742 "-Xjittransitionweight:"); 743 744 /* 745 * Madvise related options. 746 */ 747 parseRuntimeOption("dalvik.vm.madvise-random", madviseRandomOptsBuf, "-XX:MadviseRandomAccess:"); 748 749 /* 750 * Profile related options. 751 */ 752 parseRuntimeOption("dalvik.vm.hot-startup-method-samples", hotstartupsamplesOptsBuf, 753 "-Xps-hot-startup-method-samples:"); 754 755 property_get("ro.config.low_ram", propBuf, ""); 756 if (strcmp(propBuf, "true") == 0) { 757 addOption("-XX:LowMemoryMode"); 758 } 759 760 parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:"); 761 parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC="); 762 763 /* 764 * Enable debugging only for apps forked from zygote. 765 * Set suspend=y to pause during VM init and use android ADB transport. 766 */ 767 if (zygote) { 768 addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y"); 769 } 770 771 parseRuntimeOption("dalvik.vm.lockprof.threshold", 772 lockProfThresholdBuf, 773 "-Xlockprofthreshold:"); 774 775 if (executionMode == kEMIntPortable) { 776 addOption("-Xint:portable"); 777 } else if (executionMode == kEMIntFast) { 778 addOption("-Xint:fast"); 779 } else if (executionMode == kEMJitCompiler) { 780 addOption("-Xint:jit"); 781 } 782 783 // If we are booting without the real /data, don't spend time compiling. 784 property_get("vold.decrypt", voldDecryptBuf, ""); 785 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || 786 (strcmp(voldDecryptBuf, "1") == 0)); 787 788 // Extra options for boot.art/boot.oat image generation. 789 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, 790 "-Xms", "-Ximage-compiler-option"); 791 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, 792 "-Xmx", "-Ximage-compiler-option"); 793 if (skip_compilation) { 794 addOption("-Ximage-compiler-option"); 795 addOption("--compiler-filter=assume-verified"); 796 } else { 797 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, 798 "--compiler-filter=", "-Ximage-compiler-option"); 799 } 800 801 // If there is a boot profile, it takes precedence over the image and preloaded classes. 802 if (hasFile("/system/etc/boot-image.prof")) { 803 addOption("-Ximage-compiler-option"); 804 addOption("--profile-file=/system/etc/boot-image.prof"); 805 addOption("-Ximage-compiler-option"); 806 addOption("--compiler-filter=speed-profile"); 807 } else { 808 // Make sure there is a preloaded-classes file. 809 if (!hasFile("/system/etc/preloaded-classes")) { 810 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n", 811 strerror(errno)); 812 return -1; 813 } 814 addOption("-Ximage-compiler-option"); 815 addOption("--image-classes=/system/etc/preloaded-classes"); 816 817 // If there is a compiled-classes file, push it. 818 if (hasFile("/system/etc/compiled-classes")) { 819 addOption("-Ximage-compiler-option"); 820 addOption("--compiled-classes=/system/etc/compiled-classes"); 821 } 822 823 // If there is a dirty-image-objects file, push it. 824 if (hasFile("/system/etc/dirty-image-objects")) { 825 addOption("-Ximage-compiler-option"); 826 addOption("--dirty-image-objects=/system/etc/dirty-image-objects"); 827 } 828 } 829 830 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); 831 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); 832 833 // Extra options for DexClassLoader. 834 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, 835 "-Xms", "-Xcompiler-option"); 836 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, 837 "-Xmx", "-Xcompiler-option"); 838 if (skip_compilation) { 839 addOption("-Xcompiler-option"); 840 addOption("--compiler-filter=assume-verified"); 841 842 // We skip compilation when a minimal runtime is brought up for decryption. In that case 843 // /data is temporarily backed by a tmpfs, which is usually small. 844 // If the system image contains prebuilts, they will be relocated into the tmpfs. In this 845 // specific situation it is acceptable to *not* relocate and run out of the prebuilts 846 // directly instead. 847 addOption("--runtime-arg"); 848 addOption("-Xnorelocate"); 849 } else { 850 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, 851 "--compiler-filter=", "-Xcompiler-option"); 852 } 853 parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option"); 854 parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j", 855 "-Ximage-compiler-option"); 856 857 // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to 858 // pass the instruction-set-features/variant as an image-compiler-option. 859 // TODO: Find a better way for the instruction-set. 860#if defined(__arm__) 861 constexpr const char* instruction_set = "arm"; 862#elif defined(__aarch64__) 863 constexpr const char* instruction_set = "arm64"; 864#elif defined(__mips__) && !defined(__LP64__) 865 constexpr const char* instruction_set = "mips"; 866#elif defined(__mips__) && defined(__LP64__) 867 constexpr const char* instruction_set = "mips64"; 868#elif defined(__i386__) 869 constexpr const char* instruction_set = "x86"; 870#elif defined(__x86_64__) 871 constexpr const char* instruction_set = "x86_64"; 872#else 873 constexpr const char* instruction_set = "unknown"; 874#endif 875 // Note: it is OK to reuse the buffer, as the values are exactly the same between 876 // * compiler-option, used for runtime compilation (DexClassLoader) 877 // * image-compiler-option, used for boot-image compilation on device 878 879 // Copy the variant. 880 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set); 881 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 882 "--instruction-set-variant=", "-Ximage-compiler-option"); 883 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 884 "--instruction-set-variant=", "-Xcompiler-option"); 885 // Copy the features. 886 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set); 887 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 888 "--instruction-set-features=", "-Ximage-compiler-option"); 889 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 890 "--instruction-set-features=", "-Xcompiler-option"); 891 892 893 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); 894 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); 895 896 /* extra options; parse this late so it overrides others */ 897 property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); 898 parseExtraOpts(extraOptsBuf, NULL); 899 900 /* Set the properties for locale */ 901 { 902 strcpy(localeOption, "-Duser.locale="); 903 const std::string locale = readLocale(); 904 strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX); 905 addOption(localeOption); 906 } 907 908 // Trace files are stored in /data/misc/trace which is writable only in debug mode. 909 property_get("ro.debuggable", propBuf, "0"); 910 if (strcmp(propBuf, "1") == 0) { 911 property_get("dalvik.vm.method-trace", propBuf, "false"); 912 if (strcmp(propBuf, "true") == 0) { 913 addOption("-Xmethod-trace"); 914 parseRuntimeOption("dalvik.vm.method-trace-file", 915 methodTraceFileBuf, 916 "-Xmethod-trace-file:"); 917 parseRuntimeOption("dalvik.vm.method-trace-file-siz", 918 methodTraceFileSizeBuf, 919 "-Xmethod-trace-file-size:"); 920 property_get("dalvik.vm.method-trace-stream", propBuf, "false"); 921 if (strcmp(propBuf, "true") == 0) { 922 addOption("-Xmethod-trace-stream"); 923 } 924 } 925 } 926 927 // Native bridge library. "0" means that native bridge is disabled. 928 property_get("ro.dalvik.vm.native.bridge", propBuf, ""); 929 if (propBuf[0] == '\0') { 930 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); 931 } else if (strcmp(propBuf, "0") != 0) { 932 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, 933 "-XX:NativeBridge=%s", propBuf); 934 addOption(nativeBridgeLibrary); 935 } 936 937#if defined(__LP64__) 938 const char* cpu_abilist_property_name = "ro.product.cpu.abilist64"; 939#else 940 const char* cpu_abilist_property_name = "ro.product.cpu.abilist32"; 941#endif // defined(__LP64__) 942 property_get(cpu_abilist_property_name, propBuf, ""); 943 if (propBuf[0] == '\0') { 944 ALOGE("%s is not expected to be empty", cpu_abilist_property_name); 945 return -1; 946 } 947 snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf); 948 addOption(cpuAbiListBuf); 949 950 // Dalvik-cache pruning counter. 951 parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf, 952 "-Xzygote-max-boot-retry="); 953 954 /* 955 * When running with debug.generate-debug-info, add --generate-debug-info to 956 * the compiler options so that the boot image, if it is compiled on device, 957 * will include native debugging information. 958 */ 959 property_get("debug.generate-debug-info", propBuf, ""); 960 if (strcmp(propBuf, "true") == 0) { 961 addOption("-Xcompiler-option"); 962 addOption("--generate-debug-info"); 963 addOption("-Ximage-compiler-option"); 964 addOption("--generate-debug-info"); 965 } 966 967 /* 968 * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will 969 * contain the fingerprint and can be parsed. 970 * Fingerprints are potentially longer than PROPERTY_VALUE_MAX, so parseRuntimeOption() cannot 971 * be used here. 972 * Do not ever re-assign fingerprintBuf as its c_str() value is stored in mOptions. 973 */ 974 std::string fingerprint = GetProperty("ro.build.fingerprint", ""); 975 if (!fingerprint.empty()) { 976 fingerprintBuf = "-Xfingerprint:" + fingerprint; 977 addOption(fingerprintBuf.c_str()); 978 } 979 980 initArgs.version = JNI_VERSION_1_4; 981 initArgs.options = mOptions.editArray(); 982 initArgs.nOptions = mOptions.size(); 983 initArgs.ignoreUnrecognized = JNI_FALSE; 984 985 /* 986 * Initialize the VM. 987 * 988 * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. 989 * If this call succeeds, the VM is ready, and we can start issuing 990 * JNI calls. 991 */ 992 if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { 993 ALOGE("JNI_CreateJavaVM failed\n"); 994 return -1; 995 } 996 997 return 0; 998} 999 1000char* AndroidRuntime::toSlashClassName(const char* className) 1001{ 1002 char* result = strdup(className); 1003 for (char* cp = result; *cp != '\0'; cp++) { 1004 if (*cp == '.') { 1005 *cp = '/'; 1006 } 1007 } 1008 return result; 1009} 1010 1011/** Create a Java string from an ASCII or Latin-1 string */ 1012jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { 1013 if (!bytes) return NULL; 1014 int length = strlen(bytes); 1015 jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); 1016 if (!buffer) return NULL; 1017 jchar* chp = buffer; 1018 for (int i = 0; i < length; i++) { 1019 *chp++ = *bytes++; 1020 } 1021 return env->NewString(buffer, length); 1022} 1023 1024 1025/* 1026 * Start the Android runtime. This involves starting the virtual machine 1027 * and calling the "static void main(String[] args)" method in the class 1028 * named by "className". 1029 * 1030 * Passes the main function two arguments, the class name and the specified 1031 * options string. 1032 */ 1033void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote) 1034{ 1035 ALOGD(">>>>>> START %s uid %d <<<<<<\n", 1036 className != NULL ? className : "(unknown)", getuid()); 1037 1038 static const String8 startSystemServer("start-system-server"); 1039 1040 /* 1041 * 'startSystemServer == true' means runtime is obsolete and not run from 1042 * init.rc anymore, so we print out the boot start event here. 1043 */ 1044 for (size_t i = 0; i < options.size(); ++i) { 1045 if (options[i] == startSystemServer) { 1046 /* track our progress through the boot sequence */ 1047 const int LOG_BOOT_PROGRESS_START = 3000; 1048 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); 1049 } 1050 } 1051 1052 const char* rootDir = getenv("ANDROID_ROOT"); 1053 if (rootDir == NULL) { 1054 rootDir = "/system"; 1055 if (!hasDir("/system")) { 1056 LOG_FATAL("No root directory specified, and /android does not exist."); 1057 return; 1058 } 1059 setenv("ANDROID_ROOT", rootDir, 1); 1060 } 1061 1062 //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); 1063 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); 1064 1065 /* start the virtual machine */ 1066 JniInvocation jni_invocation; 1067 jni_invocation.Init(NULL); 1068 JNIEnv* env; 1069 if (startVm(&mJavaVM, &env, zygote) != 0) { 1070 return; 1071 } 1072 onVmCreated(env); 1073 1074 /* 1075 * Register android functions. 1076 */ 1077 if (startReg(env) < 0) { 1078 ALOGE("Unable to register all android natives\n"); 1079 return; 1080 } 1081 1082 /* 1083 * We want to call main() with a String array with arguments in it. 1084 * At present we have two arguments, the class name and an option string. 1085 * Create an array to hold them. 1086 */ 1087 jclass stringClass; 1088 jobjectArray strArray; 1089 jstring classNameStr; 1090 1091 stringClass = env->FindClass("java/lang/String"); 1092 assert(stringClass != NULL); 1093 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); 1094 assert(strArray != NULL); 1095 classNameStr = env->NewStringUTF(className); 1096 assert(classNameStr != NULL); 1097 env->SetObjectArrayElement(strArray, 0, classNameStr); 1098 1099 for (size_t i = 0; i < options.size(); ++i) { 1100 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); 1101 assert(optionsStr != NULL); 1102 env->SetObjectArrayElement(strArray, i + 1, optionsStr); 1103 } 1104 1105 /* 1106 * Start VM. This thread becomes the main thread of the VM, and will 1107 * not return until the VM exits. 1108 */ 1109 char* slashClassName = toSlashClassName(className != NULL ? className : ""); 1110 jclass startClass = env->FindClass(slashClassName); 1111 if (startClass == NULL) { 1112 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); 1113 /* keep going */ 1114 } else { 1115 jmethodID startMeth = env->GetStaticMethodID(startClass, "main", 1116 "([Ljava/lang/String;)V"); 1117 if (startMeth == NULL) { 1118 ALOGE("JavaVM unable to find main() in '%s'\n", className); 1119 /* keep going */ 1120 } else { 1121 env->CallStaticVoidMethod(startClass, startMeth, strArray); 1122 1123#if 0 1124 if (env->ExceptionCheck()) 1125 threadExitUncaughtException(env); 1126#endif 1127 } 1128 } 1129 free(slashClassName); 1130 1131 ALOGD("Shutting down VM\n"); 1132 if (mJavaVM->DetachCurrentThread() != JNI_OK) 1133 ALOGW("Warning: unable to detach main thread\n"); 1134 if (mJavaVM->DestroyJavaVM() != 0) 1135 ALOGW("Warning: VM did not shut down cleanly\n"); 1136} 1137 1138void AndroidRuntime::exit(int code) 1139{ 1140 if (mExitWithoutCleanup) { 1141 ALOGI("VM exiting with result code %d, cleanup skipped.", code); 1142 ::_exit(code); 1143 } else { 1144 ALOGI("VM exiting with result code %d.", code); 1145 onExit(code); 1146 ::exit(code); 1147 } 1148} 1149 1150void AndroidRuntime::onVmCreated(JNIEnv* env) 1151{ 1152 // If AndroidRuntime had anything to do here, we'd have done it in 'start'. 1153} 1154 1155/* 1156 * Get the JNIEnv pointer for this thread. 1157 * 1158 * Returns NULL if the slot wasn't allocated or populated. 1159 */ 1160/*static*/ JNIEnv* AndroidRuntime::getJNIEnv() 1161{ 1162 JNIEnv* env; 1163 JavaVM* vm = AndroidRuntime::getJavaVM(); 1164 assert(vm != NULL); 1165 1166 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) 1167 return NULL; 1168 return env; 1169} 1170 1171/* 1172 * Makes the current thread visible to the VM. 1173 * 1174 * The JNIEnv pointer returned is only valid for the current thread, and 1175 * thus must be tucked into thread-local storage. 1176 */ 1177static int javaAttachThread(const char* threadName, JNIEnv** pEnv) 1178{ 1179 JavaVMAttachArgs args; 1180 JavaVM* vm; 1181 jint result; 1182 1183 vm = AndroidRuntime::getJavaVM(); 1184 assert(vm != NULL); 1185 1186 args.version = JNI_VERSION_1_4; 1187 args.name = (char*) threadName; 1188 args.group = NULL; 1189 1190 result = vm->AttachCurrentThread(pEnv, (void*) &args); 1191 if (result != JNI_OK) 1192 ALOGI("NOTE: attach of thread '%s' failed\n", threadName); 1193 1194 return result; 1195} 1196 1197/* 1198 * Detach the current thread from the set visible to the VM. 1199 */ 1200static int javaDetachThread(void) 1201{ 1202 JavaVM* vm; 1203 jint result; 1204 1205 vm = AndroidRuntime::getJavaVM(); 1206 assert(vm != NULL); 1207 1208 result = vm->DetachCurrentThread(); 1209 if (result != JNI_OK) 1210 ALOGE("ERROR: thread detach failed\n"); 1211 return result; 1212} 1213 1214/* 1215 * When starting a native thread that will be visible from the VM, we 1216 * bounce through this to get the right attach/detach action. 1217 * Note that this function calls free(args) 1218 */ 1219/*static*/ int AndroidRuntime::javaThreadShell(void* args) { 1220 void* start = ((void**)args)[0]; 1221 void* userData = ((void **)args)[1]; 1222 char* name = (char*) ((void **)args)[2]; // we own this storage 1223 free(args); 1224 JNIEnv* env; 1225 int result; 1226 1227 /* hook us into the VM */ 1228 if (javaAttachThread(name, &env) != JNI_OK) 1229 return -1; 1230 1231 /* start the thread running */ 1232 result = (*(android_thread_func_t)start)(userData); 1233 1234 /* unhook us */ 1235 javaDetachThread(); 1236 free(name); 1237 1238 return result; 1239} 1240 1241/* 1242 * This is invoked from androidCreateThreadEtc() via the callback 1243 * set with androidSetCreateThreadFunc(). 1244 * 1245 * We need to create the new thread in such a way that it gets hooked 1246 * into the VM before it really starts executing. 1247 */ 1248/*static*/ int AndroidRuntime::javaCreateThreadEtc( 1249 android_thread_func_t entryFunction, 1250 void* userData, 1251 const char* threadName, 1252 int32_t threadPriority, 1253 size_t threadStackSize, 1254 android_thread_id_t* threadId) 1255{ 1256 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free 1257 int result; 1258 1259 LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc"); 1260 1261 args[0] = (void*) entryFunction; 1262 args[1] = userData; 1263 args[2] = (void*) strdup(threadName); // javaThreadShell must free 1264 1265 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, 1266 threadName, threadPriority, threadStackSize, threadId); 1267 return result; 1268} 1269 1270/* 1271 * Create a thread that is visible from the VM. 1272 * 1273 * This is called from elsewhere in the library. 1274 */ 1275/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, 1276 void (*start)(void *), void* arg) 1277{ 1278 android_thread_id_t threadId = 0; 1279 javaCreateThreadEtc((android_thread_func_t) start, arg, name, 1280 ANDROID_PRIORITY_DEFAULT, 0, &threadId); 1281 return threadId; 1282} 1283 1284#if 0 1285static void quickTest(void* arg) 1286{ 1287 const char* str = (const char*) arg; 1288 1289 printf("In quickTest: %s\n", str); 1290} 1291#endif 1292 1293#ifdef NDEBUG 1294 #define REG_JNI(name) { name } 1295 struct RegJNIRec { 1296 int (*mProc)(JNIEnv*); 1297 }; 1298#else 1299 #define REG_JNI(name) { name, #name } 1300 struct RegJNIRec { 1301 int (*mProc)(JNIEnv*); 1302 const char* mName; 1303 }; 1304#endif 1305 1306typedef void (*RegJAMProc)(); 1307 1308static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) 1309{ 1310 for (size_t i = 0; i < count; i++) { 1311 if (array[i].mProc(env) < 0) { 1312#ifndef NDEBUG 1313 ALOGD("----------!!! %s failed to load\n", array[i].mName); 1314#endif 1315 return -1; 1316 } 1317 } 1318 return 0; 1319} 1320 1321static const RegJNIRec gRegJNI[] = { 1322 REG_JNI(register_com_android_internal_os_RuntimeInit), 1323 REG_JNI(register_com_android_internal_os_ZygoteInit_nativeZygoteInit), 1324 REG_JNI(register_android_os_SystemClock), 1325 REG_JNI(register_android_util_EventLog), 1326 REG_JNI(register_android_util_Log), 1327 REG_JNI(register_android_util_MemoryIntArray), 1328 REG_JNI(register_android_util_PathParser), 1329 REG_JNI(register_android_util_StatsLog), 1330 REG_JNI(register_android_app_admin_SecurityLog), 1331 REG_JNI(register_android_content_AssetManager), 1332 REG_JNI(register_android_content_StringBlock), 1333 REG_JNI(register_android_content_XmlBlock), 1334 REG_JNI(register_android_text_AndroidCharacter), 1335 REG_JNI(register_android_text_Hyphenator), 1336 REG_JNI(register_android_text_StaticLayout), 1337 REG_JNI(register_android_view_InputDevice), 1338 REG_JNI(register_android_view_KeyCharacterMap), 1339 REG_JNI(register_android_os_Process), 1340 REG_JNI(register_android_os_SystemProperties), 1341 REG_JNI(register_android_os_Binder), 1342 REG_JNI(register_android_os_Parcel), 1343 REG_JNI(register_android_os_HwBinder), 1344 REG_JNI(register_android_os_HwBlob), 1345 REG_JNI(register_android_os_HwParcel), 1346 REG_JNI(register_android_os_HwRemoteBinder), 1347 REG_JNI(register_android_os_VintfObject), 1348 REG_JNI(register_android_os_VintfRuntimeInfo), 1349 REG_JNI(register_android_nio_utils), 1350 REG_JNI(register_android_graphics_Canvas), 1351 REG_JNI(register_android_graphics_Graphics), 1352 REG_JNI(register_android_view_DisplayEventReceiver), 1353 REG_JNI(register_android_view_RenderNode), 1354 REG_JNI(register_android_view_RenderNodeAnimator), 1355 REG_JNI(register_android_view_DisplayListCanvas), 1356 REG_JNI(register_android_view_HardwareLayer), 1357 REG_JNI(register_android_view_ThreadedRenderer), 1358 REG_JNI(register_android_view_Surface), 1359 REG_JNI(register_android_view_SurfaceControl), 1360 REG_JNI(register_android_view_SurfaceSession), 1361 REG_JNI(register_android_view_TextureView), 1362 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), 1363 REG_JNI(register_com_google_android_gles_jni_EGLImpl), 1364 REG_JNI(register_com_google_android_gles_jni_GLImpl), 1365 REG_JNI(register_android_opengl_jni_EGL14), 1366 REG_JNI(register_android_opengl_jni_EGLExt), 1367 REG_JNI(register_android_opengl_jni_GLES10), 1368 REG_JNI(register_android_opengl_jni_GLES10Ext), 1369 REG_JNI(register_android_opengl_jni_GLES11), 1370 REG_JNI(register_android_opengl_jni_GLES11Ext), 1371 REG_JNI(register_android_opengl_jni_GLES20), 1372 REG_JNI(register_android_opengl_jni_GLES30), 1373 REG_JNI(register_android_opengl_jni_GLES31), 1374 REG_JNI(register_android_opengl_jni_GLES31Ext), 1375 REG_JNI(register_android_opengl_jni_GLES32), 1376 1377 REG_JNI(register_android_graphics_Bitmap), 1378 REG_JNI(register_android_graphics_BitmapFactory), 1379 REG_JNI(register_android_graphics_BitmapRegionDecoder), 1380 REG_JNI(register_android_graphics_Camera), 1381 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), 1382 REG_JNI(register_android_graphics_CanvasProperty), 1383 REG_JNI(register_android_graphics_ColorFilter), 1384 REG_JNI(register_android_graphics_DrawFilter), 1385 REG_JNI(register_android_graphics_FontFamily), 1386 REG_JNI(register_android_graphics_GraphicBuffer), 1387 REG_JNI(register_android_graphics_Interpolator), 1388 REG_JNI(register_android_graphics_MaskFilter), 1389 REG_JNI(register_android_graphics_Matrix), 1390 REG_JNI(register_android_graphics_Movie), 1391 REG_JNI(register_android_graphics_NinePatch), 1392 REG_JNI(register_android_graphics_Paint), 1393 REG_JNI(register_android_graphics_Path), 1394 REG_JNI(register_android_graphics_PathMeasure), 1395 REG_JNI(register_android_graphics_PathEffect), 1396 REG_JNI(register_android_graphics_Picture), 1397 REG_JNI(register_android_graphics_Region), 1398 REG_JNI(register_android_graphics_Shader), 1399 REG_JNI(register_android_graphics_SurfaceTexture), 1400 REG_JNI(register_android_graphics_Typeface), 1401 REG_JNI(register_android_graphics_YuvImage), 1402 REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable), 1403 REG_JNI(register_android_graphics_drawable_VectorDrawable), 1404 REG_JNI(register_android_graphics_pdf_PdfDocument), 1405 REG_JNI(register_android_graphics_pdf_PdfEditor), 1406 REG_JNI(register_android_graphics_pdf_PdfRenderer), 1407 1408 REG_JNI(register_android_database_CursorWindow), 1409 REG_JNI(register_android_database_SQLiteConnection), 1410 REG_JNI(register_android_database_SQLiteGlobal), 1411 REG_JNI(register_android_database_SQLiteDebug), 1412 REG_JNI(register_android_os_Debug), 1413 REG_JNI(register_android_os_FileObserver), 1414 REG_JNI(register_android_os_GraphicsEnvironment), 1415 REG_JNI(register_android_os_MessageQueue), 1416 REG_JNI(register_android_os_SELinux), 1417 REG_JNI(register_android_os_seccomp), 1418 REG_JNI(register_android_os_Trace), 1419 REG_JNI(register_android_os_UEventObserver), 1420 REG_JNI(register_android_net_LocalSocketImpl), 1421 REG_JNI(register_android_net_NetworkUtils), 1422 REG_JNI(register_android_net_TrafficStats), 1423 REG_JNI(register_android_os_MemoryFile), 1424 REG_JNI(register_android_os_SharedMemory), 1425 REG_JNI(register_com_android_internal_os_ClassLoaderFactory), 1426 REG_JNI(register_com_android_internal_os_Zygote), 1427 REG_JNI(register_com_android_internal_os_ZygoteInit), 1428 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), 1429 REG_JNI(register_android_hardware_Camera), 1430 REG_JNI(register_android_hardware_camera2_CameraMetadata), 1431 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), 1432 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), 1433 REG_JNI(register_android_hardware_camera2_DngCreator), 1434 REG_JNI(register_android_hardware_HardwareBuffer), 1435 REG_JNI(register_android_hardware_SensorManager), 1436 REG_JNI(register_android_hardware_SerialPort), 1437 REG_JNI(register_android_hardware_SoundTrigger), 1438 REG_JNI(register_android_hardware_UsbDevice), 1439 REG_JNI(register_android_hardware_UsbDeviceConnection), 1440 REG_JNI(register_android_hardware_UsbRequest), 1441 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), 1442 REG_JNI(register_android_media_AudioRecord), 1443 REG_JNI(register_android_media_AudioSystem), 1444 REG_JNI(register_android_media_AudioTrack), 1445 REG_JNI(register_android_media_JetPlayer), 1446 REG_JNI(register_android_media_RemoteDisplay), 1447 REG_JNI(register_android_media_ToneGenerator), 1448 1449 REG_JNI(register_android_opengl_classes), 1450 REG_JNI(register_android_server_NetworkManagementSocketTagger), 1451 REG_JNI(register_android_ddm_DdmHandleNativeHeap), 1452 REG_JNI(register_android_backup_BackupDataInput), 1453 REG_JNI(register_android_backup_BackupDataOutput), 1454 REG_JNI(register_android_backup_FileBackupHelperBase), 1455 REG_JNI(register_android_backup_BackupHelperDispatcher), 1456 REG_JNI(register_android_app_backup_FullBackup), 1457 REG_JNI(register_android_app_Activity), 1458 REG_JNI(register_android_app_ActivityThread), 1459 REG_JNI(register_android_app_ApplicationLoaders), 1460 REG_JNI(register_android_app_NativeActivity), 1461 REG_JNI(register_android_util_jar_StrictJarFile), 1462 REG_JNI(register_android_view_InputChannel), 1463 REG_JNI(register_android_view_InputEventReceiver), 1464 REG_JNI(register_android_view_InputEventSender), 1465 REG_JNI(register_android_view_InputQueue), 1466 REG_JNI(register_android_view_KeyEvent), 1467 REG_JNI(register_android_view_MotionEvent), 1468 REG_JNI(register_android_view_PointerIcon), 1469 REG_JNI(register_android_view_VelocityTracker), 1470 1471 REG_JNI(register_android_content_res_ObbScanner), 1472 REG_JNI(register_android_content_res_Configuration), 1473 1474 REG_JNI(register_android_animation_PropertyValuesHolder), 1475 REG_JNI(register_com_android_internal_content_NativeLibraryHelper), 1476 REG_JNI(register_com_android_internal_net_NetworkStatsFactory), 1477 REG_JNI(register_com_android_internal_os_FuseAppLoop), 1478}; 1479 1480/* 1481 * Register android native functions with the VM. 1482 */ 1483/*static*/ int AndroidRuntime::startReg(JNIEnv* env) 1484{ 1485 ATRACE_NAME("RegisterAndroidNatives"); 1486 /* 1487 * This hook causes all future threads created in this process to be 1488 * attached to the JavaVM. (This needs to go away in favor of JNI 1489 * Attach calls.) 1490 */ 1491 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); 1492 1493 ALOGV("--- registering native functions ---\n"); 1494 1495 /* 1496 * Every "register" function calls one or more things that return 1497 * a local reference (e.g. FindClass). Because we haven't really 1498 * started the VM yet, they're all getting stored in the base frame 1499 * and never released. Use Push/Pop to manage the storage. 1500 */ 1501 env->PushLocalFrame(200); 1502 1503 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { 1504 env->PopLocalFrame(NULL); 1505 return -1; 1506 } 1507 env->PopLocalFrame(NULL); 1508 1509 //createJavaThread("fubar", quickTest, (void*) "hello"); 1510 1511 return 0; 1512} 1513 1514AndroidRuntime* AndroidRuntime::getRuntime() 1515{ 1516 return gCurRuntime; 1517} 1518 1519/** 1520 * Used by surface flinger's DdmConnection to register native methods from 1521 * the framework. 1522 */ 1523extern "C" jint registerFrameworkNatives(JNIEnv* env) { 1524 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1525} 1526} // namespace android 1527