AndroidRuntime.cpp revision 693d8a2ab1e5da73b03c6bd8da9d5d09fa63d41f
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_Log(JNIEnv* env); 117extern int register_android_util_MemoryIntArray(JNIEnv* env); 118extern int register_android_util_PathParser(JNIEnv* env); 119extern int register_android_content_StringBlock(JNIEnv* env); 120extern int register_android_content_XmlBlock(JNIEnv* env); 121extern int register_android_graphics_Canvas(JNIEnv* env); 122extern int register_android_graphics_CanvasProperty(JNIEnv* env); 123extern int register_android_graphics_ColorFilter(JNIEnv* env); 124extern int register_android_graphics_DrawFilter(JNIEnv* env); 125extern int register_android_graphics_FontFamily(JNIEnv* env); 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_Region(JNIEnv* env); 132extern int register_android_graphics_SurfaceTexture(JNIEnv* env); 133extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env); 134extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env); 135extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env); 136extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env); 137extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env); 138extern int register_android_view_DisplayEventReceiver(JNIEnv* env); 139extern int register_android_view_DisplayListCanvas(JNIEnv* env); 140extern int register_android_view_HardwareLayer(JNIEnv* env); 141extern int register_android_view_RenderNode(JNIEnv* env); 142extern int register_android_view_RenderNodeAnimator(JNIEnv* env); 143extern int register_android_view_Surface(JNIEnv* env); 144extern int register_android_view_SurfaceControl(JNIEnv* env); 145extern int register_android_view_SurfaceSession(JNIEnv* env); 146extern int register_android_view_TextureView(JNIEnv* env); 147extern int register_android_view_ThreadedRenderer(JNIEnv* env); 148extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env); 149extern int register_android_database_CursorWindow(JNIEnv* env); 150extern int register_android_database_SQLiteConnection(JNIEnv* env); 151extern int register_android_database_SQLiteGlobal(JNIEnv* env); 152extern int register_android_database_SQLiteDebug(JNIEnv* env); 153extern int register_android_nio_utils(JNIEnv* env); 154extern int register_android_os_Debug(JNIEnv* env); 155extern int register_android_os_GraphicsEnvironment(JNIEnv* env); 156extern int register_android_os_HidlSupport(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_text_AndroidCharacter(JNIEnv *env); 177extern int register_android_text_StaticLayout(JNIEnv *env); 178extern int register_android_text_AndroidBidi(JNIEnv *env); 179extern int register_android_opengl_classes(JNIEnv *env); 180extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env); 181extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env); 182extern int register_android_backup_BackupDataInput(JNIEnv *env); 183extern int register_android_backup_BackupDataOutput(JNIEnv *env); 184extern int register_android_backup_FileBackupHelperBase(JNIEnv *env); 185extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env); 186extern int register_android_app_backup_FullBackup(JNIEnv *env); 187extern int register_android_app_Activity(JNIEnv *env); 188extern int register_android_app_ActivityThread(JNIEnv *env); 189extern int register_android_app_ApplicationLoaders(JNIEnv *env); 190extern int register_android_app_NativeActivity(JNIEnv *env); 191extern int register_android_media_RemoteDisplay(JNIEnv *env); 192extern int register_android_util_jar_StrictJarFile(JNIEnv* env); 193extern int register_android_view_InputChannel(JNIEnv* env); 194extern int register_android_view_InputDevice(JNIEnv* env); 195extern int register_android_view_InputEventReceiver(JNIEnv* env); 196extern int register_android_view_InputEventSender(JNIEnv* env); 197extern int register_android_view_InputQueue(JNIEnv* env); 198extern int register_android_view_KeyCharacterMap(JNIEnv *env); 199extern int register_android_view_KeyEvent(JNIEnv* env); 200extern int register_android_view_MotionEvent(JNIEnv* env); 201extern int register_android_view_PointerIcon(JNIEnv* env); 202extern int register_android_view_VelocityTracker(JNIEnv* env); 203extern int register_android_content_res_ObbScanner(JNIEnv* env); 204extern int register_android_content_res_Configuration(JNIEnv* env); 205extern int register_android_animation_PropertyValuesHolder(JNIEnv *env); 206extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env); 207extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env); 208extern int register_com_android_internal_os_ClassLoaderFactory(JNIEnv* env); 209extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env); 210extern int register_com_android_internal_os_Zygote(JNIEnv *env); 211extern int register_com_android_internal_os_ZygoteInit(JNIEnv *env); 212extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env); 213 214static AndroidRuntime* gCurRuntime = NULL; 215 216/* 217 * Code written in the Java Programming Language calls here from main(). 218 */ 219static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz) 220{ 221 gCurRuntime->onStarted(); 222} 223 224static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz) 225{ 226 gCurRuntime->onZygoteInit(); 227} 228 229static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env, 230 jobject clazz, jboolean exitWithoutCleanup) 231{ 232 gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup); 233} 234 235/* 236 * JNI registration. 237 */ 238 239int register_com_android_internal_os_RuntimeInit(JNIEnv* env) 240{ 241 const JNINativeMethod methods[] = { 242 { "nativeFinishInit", "()V", 243 (void*) com_android_internal_os_RuntimeInit_nativeFinishInit }, 244 { "nativeSetExitWithoutCleanup", "(Z)V", 245 (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup }, 246 }; 247 return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit", 248 methods, NELEM(methods)); 249} 250 251int register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env) 252{ 253 const JNINativeMethod methods[] = { 254 { "nativeZygoteInit", "()V", 255 (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit }, 256 }; 257 return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit", 258 methods, NELEM(methods)); 259} 260 261// ---------------------------------------------------------------------- 262 263/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL; 264 265AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) : 266 mExitWithoutCleanup(false), 267 mArgBlockStart(argBlockStart), 268 mArgBlockLength(argBlockLength) 269{ 270 SkGraphics::Init(); 271 272 // Pre-allocate enough space to hold a fair number of options. 273 mOptions.setCapacity(20); 274 275 assert(gCurRuntime == NULL); // one per process 276 gCurRuntime = this; 277} 278 279AndroidRuntime::~AndroidRuntime() 280{ 281} 282 283/* 284 * Register native methods using JNI. 285 */ 286/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env, 287 const char* className, const JNINativeMethod* gMethods, int numMethods) 288{ 289 return jniRegisterNativeMethods(env, className, gMethods, numMethods); 290} 291 292void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) { 293 if (setProcName) { 294 int len = strlen(argv0); 295 if (len < 15) { 296 pthread_setname_np(pthread_self(), argv0); 297 } else { 298 pthread_setname_np(pthread_self(), argv0 + len - 15); 299 } 300 } 301 memset(mArgBlockStart, 0, mArgBlockLength); 302 strlcpy(mArgBlockStart, argv0, mArgBlockLength); 303} 304 305status_t AndroidRuntime::callMain(const String8& className, jclass clazz, 306 const Vector<String8>& args) 307{ 308 JNIEnv* env; 309 jmethodID methodId; 310 311 ALOGD("Calling main entry %s", className.string()); 312 313 env = getJNIEnv(); 314 if (clazz == NULL || env == NULL) { 315 return UNKNOWN_ERROR; 316 } 317 318 methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V"); 319 if (methodId == NULL) { 320 ALOGE("ERROR: could not find method %s.main(String[])\n", className.string()); 321 return UNKNOWN_ERROR; 322 } 323 324 /* 325 * We want to call main() with a String array with our arguments in it. 326 * Create an array and populate it. 327 */ 328 jclass stringClass; 329 jobjectArray strArray; 330 331 const size_t numArgs = args.size(); 332 stringClass = env->FindClass("java/lang/String"); 333 strArray = env->NewObjectArray(numArgs, stringClass, NULL); 334 335 for (size_t i = 0; i < numArgs; i++) { 336 jstring argStr = env->NewStringUTF(args[i].string()); 337 env->SetObjectArrayElement(strArray, i, argStr); 338 } 339 340 env->CallStaticVoidMethod(clazz, methodId, strArray); 341 return NO_ERROR; 342} 343 344/* 345 * The VM calls this through the "exit" hook. 346 */ 347static void runtime_exit(int code) 348{ 349 gCurRuntime->exit(code); 350} 351 352/* 353 * The VM calls this through the "vfprintf" hook. 354 * 355 * We ignore "fp" and just write the results to the log file. 356 */ 357static void runtime_vfprintf(FILE* fp, const char* format, va_list ap) 358{ 359 LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap); 360} 361 362/** 363 * The VM calls this when mutex contention debugging is enabled to 364 * determine whether or not the blocked thread was a "sensitive thread" 365 * for user responsiveness/smoothess. 366 * 367 * Our policy for this is whether or not we're tracing any StrictMode 368 * events on this thread (which we might've inherited via Binder calls 369 * into us) 370 */ 371static bool runtime_isSensitiveThread() { 372 IPCThreadState* state = IPCThreadState::selfOrNull(); 373 return state && state->getStrictModePolicy() != 0; 374} 375 376static int hasDir(const char* dir) 377{ 378 struct stat s; 379 int res = stat(dir, &s); 380 if (res == 0) { 381 return S_ISDIR(s.st_mode); 382 } 383 return 0; 384} 385 386static bool hasFile(const char* file) { 387 struct stat s; 388 int res = stat(file, &s); 389 if (res == 0) { 390 return S_ISREG(s.st_mode); 391 } 392 return false; 393} 394 395/* 396 * Read the persistent locale. Inspects the following system properties 397 * (in order) and returns the first non-empty property in the list : 398 * 399 * (1) persist.sys.locale 400 * (2) persist.sys.language/country/localevar (country and localevar are 401 * inspected iff. language is non-empty. 402 * (3) ro.product.locale 403 * (4) ro.product.locale.language/region 404 * 405 * Note that we need to inspect persist.sys.language/country/localevar to 406 * preserve language settings for devices that are upgrading from Lollipop 407 * to M. The same goes for ro.product.locale.language/region as well. 408 */ 409const std::string readLocale() 410{ 411 const std::string locale = GetProperty("persist.sys.locale", ""); 412 if (!locale.empty()) { 413 return locale; 414 } 415 416 const std::string language = GetProperty("persist.sys.language", ""); 417 if (!language.empty()) { 418 const std::string country = GetProperty("persist.sys.country", ""); 419 const std::string variant = GetProperty("persist.sys.localevar", ""); 420 421 std::string out = language; 422 if (!country.empty()) { 423 out = out + "-" + country; 424 } 425 426 if (!variant.empty()) { 427 out = out + "-" + variant; 428 } 429 430 return out; 431 } 432 433 const std::string productLocale = GetProperty("ro.product.locale", ""); 434 if (!productLocale.empty()) { 435 return productLocale; 436 } 437 438 // If persist.sys.locale and ro.product.locale are missing, 439 // construct a locale value from the individual locale components. 440 const std::string productLanguage = GetProperty("ro.product.locale.language", "en"); 441 const std::string productRegion = GetProperty("ro.product.locale.region", "US"); 442 443 return productLanguage + "-" + productRegion; 444} 445 446void AndroidRuntime::addOption(const char* optionString, void* extraInfo) 447{ 448 JavaVMOption opt; 449 opt.optionString = optionString; 450 opt.extraInfo = extraInfo; 451 mOptions.add(opt); 452} 453 454/* 455 * Parse a property containing space-separated options that should be 456 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap". 457 * 458 * This will cut up "extraOptsBuf" as we chop it into individual options. 459 * 460 * If "quotingArg" is non-null, it is passed before each extra option in mOptions. 461 * 462 * Adds the strings, if any, to mOptions. 463 */ 464void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg) 465{ 466 char* start = extraOptsBuf; 467 char* end = NULL; 468 while (*start != '\0') { 469 while (*start == ' ') /* skip leading whitespace */ 470 start++; 471 if (*start == '\0') /* was trailing ws, bail */ 472 break; 473 474 end = start+1; 475 while (*end != ' ' && *end != '\0') /* find end of token */ 476 end++; 477 if (*end == ' ') 478 *end++ = '\0'; /* mark end, advance to indicate more */ 479 480 if (quotingArg != NULL) { 481 addOption(quotingArg); 482 } 483 addOption(start); 484 start = end; 485 } 486} 487 488/* 489 * Reads a "property" into "buffer" with a default of "defaultArg". If 490 * the property is non-empty, it is treated as a runtime option such 491 * as "-Xmx32m". 492 * 493 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 494 * 495 * If an argument is found, it is added to mOptions. 496 * 497 * If an option is found, it is added to mOptions and true is 498 * returned. Otherwise false is returned. 499 */ 500bool AndroidRuntime::parseRuntimeOption(const char* property, 501 char* buffer, 502 const char* runtimeArg, 503 const char* defaultArg) 504{ 505 strcpy(buffer, runtimeArg); 506 size_t runtimeArgLen = strlen(runtimeArg); 507 property_get(property, buffer+runtimeArgLen, defaultArg); 508 if (buffer[runtimeArgLen] == '\0') { 509 return false; 510 } 511 addOption(buffer); 512 return true; 513} 514 515/* 516 * Reads a "property" into "buffer". If the property is non-empty, it 517 * is treated as a dex2oat compiler option that should be 518 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified". 519 * 520 * The "compilerArg" is a prefix for the option such as "--compiler-filter=". 521 * 522 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 523 * 524 * If an option is found, it is added to mOptions and true is 525 * returned. Otherwise false is returned. 526 */ 527bool AndroidRuntime::parseCompilerOption(const char* property, 528 char* buffer, 529 const char* compilerArg, 530 const char* quotingArg) 531{ 532 strcpy(buffer, compilerArg); 533 size_t compilerArgLen = strlen(compilerArg); 534 property_get(property, buffer+compilerArgLen, ""); 535 if (buffer[compilerArgLen] == '\0') { 536 return false; 537 } 538 addOption(quotingArg); 539 addOption(buffer); 540 return true; 541} 542 543/* 544 * Reads a "property" into "buffer". If the property is non-empty, it 545 * is treated as a dex2oat compiler runtime option that should be 546 * passed as a quoted option, e.g. "-Ximage-compiler-option 547 * --runtime-arg -Ximage-compiler-option -Xmx32m". 548 * 549 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 550 * 551 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 552 * 553 * If an option is found, it is added to mOptions and true is 554 * returned. Otherwise false is returned. 555 */ 556bool AndroidRuntime::parseCompilerRuntimeOption(const char* property, 557 char* buffer, 558 const char* runtimeArg, 559 const char* quotingArg) 560{ 561 strcpy(buffer, runtimeArg); 562 size_t runtimeArgLen = strlen(runtimeArg); 563 property_get(property, buffer+runtimeArgLen, ""); 564 if (buffer[runtimeArgLen] == '\0') { 565 return false; 566 } 567 addOption(quotingArg); 568 addOption("--runtime-arg"); 569 addOption(quotingArg); 570 addOption(buffer); 571 return true; 572} 573 574/* 575 * Start the Dalvik Virtual Machine. 576 * 577 * Various arguments, most determined by system properties, are passed in. 578 * The "mOptions" vector is updated. 579 * 580 * CAUTION: when adding options in here, be careful not to put the 581 * char buffer inside a nested scope. Adding the buffer to the 582 * options using mOptions.add() does not copy the buffer, so if the 583 * buffer goes out of scope the option may be overwritten. It's best 584 * to put the buffer at the top of the function so that it is more 585 * unlikely that someone will surround it in a scope at a later time 586 * and thus introduce a bug. 587 * 588 * Returns 0 on success. 589 */ 590int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote) 591{ 592 JavaVMInitArgs initArgs; 593 char propBuf[PROPERTY_VALUE_MAX]; 594 char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX]; 595 char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX]; 596 char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 597 char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 598 char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX]; 599 char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX]; 600 char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX]; 601 char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX]; 602 char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX]; 603 char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX]; 604 char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX]; 605 char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX]; 606 char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX]; 607 char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX]; 608 char hotstartupsamplesOptsBuf[sizeof("-Xps-hot-startup-method-samples:")-1 + PROPERTY_VALUE_MAX]; 609 char madviseRandomOptsBuf[sizeof("-XX:MadviseRandomAccess:")-1 + PROPERTY_VALUE_MAX]; 610 char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX]; 611 char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX]; 612 char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX]; 613 char foregroundHeapGrowthMultiplierOptsBuf[ 614 sizeof("-XX:ForegroundHeapGrowthMultiplier=")-1 + PROPERTY_VALUE_MAX]; 615 char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX]; 616 char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 617 char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 618 char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 619 char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 620 char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 621 char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 622 char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 623 char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 624 char dex2oat_isa_variant_key[PROPERTY_KEY_MAX]; 625 char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX]; 626 char dex2oat_isa_features_key[PROPERTY_KEY_MAX]; 627 char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX]; 628 char dex2oatFlagsBuf[PROPERTY_VALUE_MAX]; 629 char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX]; 630 char extraOptsBuf[PROPERTY_VALUE_MAX]; 631 char voldDecryptBuf[PROPERTY_VALUE_MAX]; 632 enum { 633 kEMDefault, 634 kEMIntPortable, 635 kEMIntFast, 636 kEMJitCompiler, 637 } executionMode = kEMDefault; 638 char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX]; 639 char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX]; 640 char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX]; 641 char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX]; 642 char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX]; 643 char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX]; 644 std::string fingerprintBuf; 645 char jdwpProviderBuf[sizeof("-XjdwpProvider:") - 1 + PROPERTY_VALUE_MAX]; 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("-XjdwpOptions:suspend=n,server=y"); 769 } 770 771 // Set the JDWP provider. By default let the runtime choose. 772 parseRuntimeOption("dalvik.vm.jdwp-provider", 773 jdwpProviderBuf, 774 "-XjdwpProvider:", 775 "default"); 776 777 parseRuntimeOption("dalvik.vm.lockprof.threshold", 778 lockProfThresholdBuf, 779 "-Xlockprofthreshold:"); 780 781 if (executionMode == kEMIntPortable) { 782 addOption("-Xint:portable"); 783 } else if (executionMode == kEMIntFast) { 784 addOption("-Xint:fast"); 785 } else if (executionMode == kEMJitCompiler) { 786 addOption("-Xint:jit"); 787 } 788 789 // If we are booting without the real /data, don't spend time compiling. 790 property_get("vold.decrypt", voldDecryptBuf, ""); 791 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || 792 (strcmp(voldDecryptBuf, "1") == 0)); 793 794 // Extra options for boot.art/boot.oat image generation. 795 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, 796 "-Xms", "-Ximage-compiler-option"); 797 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, 798 "-Xmx", "-Ximage-compiler-option"); 799 if (skip_compilation) { 800 addOption("-Ximage-compiler-option"); 801 addOption("--compiler-filter=assume-verified"); 802 } else { 803 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, 804 "--compiler-filter=", "-Ximage-compiler-option"); 805 } 806 807 // If there is a boot profile, it takes precedence over the image and preloaded classes. 808 if (hasFile("/system/etc/boot-image.prof")) { 809 addOption("-Ximage-compiler-option"); 810 addOption("--profile-file=/system/etc/boot-image.prof"); 811 addOption("-Ximage-compiler-option"); 812 addOption("--compiler-filter=speed-profile"); 813 } else { 814 // Make sure there is a preloaded-classes file. 815 if (!hasFile("/system/etc/preloaded-classes")) { 816 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n", 817 strerror(errno)); 818 return -1; 819 } 820 addOption("-Ximage-compiler-option"); 821 addOption("--image-classes=/system/etc/preloaded-classes"); 822 823 // If there is a compiled-classes file, push it. 824 if (hasFile("/system/etc/compiled-classes")) { 825 addOption("-Ximage-compiler-option"); 826 addOption("--compiled-classes=/system/etc/compiled-classes"); 827 } 828 829 // If there is a dirty-image-objects file, push it. 830 if (hasFile("/system/etc/dirty-image-objects")) { 831 addOption("-Ximage-compiler-option"); 832 addOption("--dirty-image-objects=/system/etc/dirty-image-objects"); 833 } 834 } 835 836 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); 837 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); 838 839 // Extra options for DexClassLoader. 840 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, 841 "-Xms", "-Xcompiler-option"); 842 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, 843 "-Xmx", "-Xcompiler-option"); 844 if (skip_compilation) { 845 addOption("-Xcompiler-option"); 846 addOption("--compiler-filter=assume-verified"); 847 848 // We skip compilation when a minimal runtime is brought up for decryption. In that case 849 // /data is temporarily backed by a tmpfs, which is usually small. 850 // If the system image contains prebuilts, they will be relocated into the tmpfs. In this 851 // specific situation it is acceptable to *not* relocate and run out of the prebuilts 852 // directly instead. 853 addOption("--runtime-arg"); 854 addOption("-Xnorelocate"); 855 } else { 856 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, 857 "--compiler-filter=", "-Xcompiler-option"); 858 } 859 parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option"); 860 parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j", 861 "-Ximage-compiler-option"); 862 863 // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to 864 // pass the instruction-set-features/variant as an image-compiler-option. 865 // TODO: Find a better way for the instruction-set. 866#if defined(__arm__) 867 constexpr const char* instruction_set = "arm"; 868#elif defined(__aarch64__) 869 constexpr const char* instruction_set = "arm64"; 870#elif defined(__mips__) && !defined(__LP64__) 871 constexpr const char* instruction_set = "mips"; 872#elif defined(__mips__) && defined(__LP64__) 873 constexpr const char* instruction_set = "mips64"; 874#elif defined(__i386__) 875 constexpr const char* instruction_set = "x86"; 876#elif defined(__x86_64__) 877 constexpr const char* instruction_set = "x86_64"; 878#else 879 constexpr const char* instruction_set = "unknown"; 880#endif 881 // Note: it is OK to reuse the buffer, as the values are exactly the same between 882 // * compiler-option, used for runtime compilation (DexClassLoader) 883 // * image-compiler-option, used for boot-image compilation on device 884 885 // Copy the variant. 886 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set); 887 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 888 "--instruction-set-variant=", "-Ximage-compiler-option"); 889 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 890 "--instruction-set-variant=", "-Xcompiler-option"); 891 // Copy the features. 892 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set); 893 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 894 "--instruction-set-features=", "-Ximage-compiler-option"); 895 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 896 "--instruction-set-features=", "-Xcompiler-option"); 897 898 899 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); 900 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); 901 902 /* extra options; parse this late so it overrides others */ 903 property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); 904 parseExtraOpts(extraOptsBuf, NULL); 905 906 /* Set the properties for locale */ 907 { 908 strcpy(localeOption, "-Duser.locale="); 909 const std::string locale = readLocale(); 910 strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX); 911 addOption(localeOption); 912 } 913 914 // Trace files are stored in /data/misc/trace which is writable only in debug mode. 915 property_get("ro.debuggable", propBuf, "0"); 916 if (strcmp(propBuf, "1") == 0) { 917 property_get("dalvik.vm.method-trace", propBuf, "false"); 918 if (strcmp(propBuf, "true") == 0) { 919 addOption("-Xmethod-trace"); 920 parseRuntimeOption("dalvik.vm.method-trace-file", 921 methodTraceFileBuf, 922 "-Xmethod-trace-file:"); 923 parseRuntimeOption("dalvik.vm.method-trace-file-siz", 924 methodTraceFileSizeBuf, 925 "-Xmethod-trace-file-size:"); 926 property_get("dalvik.vm.method-trace-stream", propBuf, "false"); 927 if (strcmp(propBuf, "true") == 0) { 928 addOption("-Xmethod-trace-stream"); 929 } 930 } 931 } 932 933 // Native bridge library. "0" means that native bridge is disabled. 934 property_get("ro.dalvik.vm.native.bridge", propBuf, ""); 935 if (propBuf[0] == '\0') { 936 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); 937 } else if (strcmp(propBuf, "0") != 0) { 938 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, 939 "-XX:NativeBridge=%s", propBuf); 940 addOption(nativeBridgeLibrary); 941 } 942 943#if defined(__LP64__) 944 const char* cpu_abilist_property_name = "ro.product.cpu.abilist64"; 945#else 946 const char* cpu_abilist_property_name = "ro.product.cpu.abilist32"; 947#endif // defined(__LP64__) 948 property_get(cpu_abilist_property_name, propBuf, ""); 949 if (propBuf[0] == '\0') { 950 ALOGE("%s is not expected to be empty", cpu_abilist_property_name); 951 return -1; 952 } 953 snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf); 954 addOption(cpuAbiListBuf); 955 956 // Dalvik-cache pruning counter. 957 parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf, 958 "-Xzygote-max-boot-retry="); 959 960 /* 961 * When running with debug.generate-debug-info, add --generate-debug-info to 962 * the compiler options so that the boot image, if it is compiled on device, 963 * will include native debugging information. 964 */ 965 property_get("debug.generate-debug-info", propBuf, ""); 966 if (strcmp(propBuf, "true") == 0) { 967 addOption("-Xcompiler-option"); 968 addOption("--generate-debug-info"); 969 addOption("-Ximage-compiler-option"); 970 addOption("--generate-debug-info"); 971 } 972 973 /* 974 * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will 975 * contain the fingerprint and can be parsed. 976 * Fingerprints are potentially longer than PROPERTY_VALUE_MAX, so parseRuntimeOption() cannot 977 * be used here. 978 * Do not ever re-assign fingerprintBuf as its c_str() value is stored in mOptions. 979 */ 980 std::string fingerprint = GetProperty("ro.build.fingerprint", ""); 981 if (!fingerprint.empty()) { 982 fingerprintBuf = "-Xfingerprint:" + fingerprint; 983 addOption(fingerprintBuf.c_str()); 984 } 985 986 initArgs.version = JNI_VERSION_1_4; 987 initArgs.options = mOptions.editArray(); 988 initArgs.nOptions = mOptions.size(); 989 initArgs.ignoreUnrecognized = JNI_FALSE; 990 991 /* 992 * Initialize the VM. 993 * 994 * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. 995 * If this call succeeds, the VM is ready, and we can start issuing 996 * JNI calls. 997 */ 998 if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { 999 ALOGE("JNI_CreateJavaVM failed\n"); 1000 return -1; 1001 } 1002 1003 return 0; 1004} 1005 1006char* AndroidRuntime::toSlashClassName(const char* className) 1007{ 1008 char* result = strdup(className); 1009 for (char* cp = result; *cp != '\0'; cp++) { 1010 if (*cp == '.') { 1011 *cp = '/'; 1012 } 1013 } 1014 return result; 1015} 1016 1017/** Create a Java string from an ASCII or Latin-1 string */ 1018jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { 1019 if (!bytes) return NULL; 1020 int length = strlen(bytes); 1021 jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); 1022 if (!buffer) return NULL; 1023 jchar* chp = buffer; 1024 for (int i = 0; i < length; i++) { 1025 *chp++ = *bytes++; 1026 } 1027 return env->NewString(buffer, length); 1028} 1029 1030 1031/* 1032 * Start the Android runtime. This involves starting the virtual machine 1033 * and calling the "static void main(String[] args)" method in the class 1034 * named by "className". 1035 * 1036 * Passes the main function two arguments, the class name and the specified 1037 * options string. 1038 */ 1039void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote) 1040{ 1041 ALOGD(">>>>>> START %s uid %d <<<<<<\n", 1042 className != NULL ? className : "(unknown)", getuid()); 1043 1044 static const String8 startSystemServer("start-system-server"); 1045 1046 /* 1047 * 'startSystemServer == true' means runtime is obsolete and not run from 1048 * init.rc anymore, so we print out the boot start event here. 1049 */ 1050 for (size_t i = 0; i < options.size(); ++i) { 1051 if (options[i] == startSystemServer) { 1052 /* track our progress through the boot sequence */ 1053 const int LOG_BOOT_PROGRESS_START = 3000; 1054 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); 1055 } 1056 } 1057 1058 const char* rootDir = getenv("ANDROID_ROOT"); 1059 if (rootDir == NULL) { 1060 rootDir = "/system"; 1061 if (!hasDir("/system")) { 1062 LOG_FATAL("No root directory specified, and /android does not exist."); 1063 return; 1064 } 1065 setenv("ANDROID_ROOT", rootDir, 1); 1066 } 1067 1068 //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); 1069 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); 1070 1071 /* start the virtual machine */ 1072 JniInvocation jni_invocation; 1073 jni_invocation.Init(NULL); 1074 JNIEnv* env; 1075 if (startVm(&mJavaVM, &env, zygote) != 0) { 1076 return; 1077 } 1078 onVmCreated(env); 1079 1080 /* 1081 * Register android functions. 1082 */ 1083 if (startReg(env) < 0) { 1084 ALOGE("Unable to register all android natives\n"); 1085 return; 1086 } 1087 1088 /* 1089 * We want to call main() with a String array with arguments in it. 1090 * At present we have two arguments, the class name and an option string. 1091 * Create an array to hold them. 1092 */ 1093 jclass stringClass; 1094 jobjectArray strArray; 1095 jstring classNameStr; 1096 1097 stringClass = env->FindClass("java/lang/String"); 1098 assert(stringClass != NULL); 1099 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); 1100 assert(strArray != NULL); 1101 classNameStr = env->NewStringUTF(className); 1102 assert(classNameStr != NULL); 1103 env->SetObjectArrayElement(strArray, 0, classNameStr); 1104 1105 for (size_t i = 0; i < options.size(); ++i) { 1106 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); 1107 assert(optionsStr != NULL); 1108 env->SetObjectArrayElement(strArray, i + 1, optionsStr); 1109 } 1110 1111 /* 1112 * Start VM. This thread becomes the main thread of the VM, and will 1113 * not return until the VM exits. 1114 */ 1115 char* slashClassName = toSlashClassName(className != NULL ? className : ""); 1116 jclass startClass = env->FindClass(slashClassName); 1117 if (startClass == NULL) { 1118 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); 1119 /* keep going */ 1120 } else { 1121 jmethodID startMeth = env->GetStaticMethodID(startClass, "main", 1122 "([Ljava/lang/String;)V"); 1123 if (startMeth == NULL) { 1124 ALOGE("JavaVM unable to find main() in '%s'\n", className); 1125 /* keep going */ 1126 } else { 1127 env->CallStaticVoidMethod(startClass, startMeth, strArray); 1128 1129#if 0 1130 if (env->ExceptionCheck()) 1131 threadExitUncaughtException(env); 1132#endif 1133 } 1134 } 1135 free(slashClassName); 1136 1137 ALOGD("Shutting down VM\n"); 1138 if (mJavaVM->DetachCurrentThread() != JNI_OK) 1139 ALOGW("Warning: unable to detach main thread\n"); 1140 if (mJavaVM->DestroyJavaVM() != 0) 1141 ALOGW("Warning: VM did not shut down cleanly\n"); 1142} 1143 1144void AndroidRuntime::exit(int code) 1145{ 1146 if (mExitWithoutCleanup) { 1147 ALOGI("VM exiting with result code %d, cleanup skipped.", code); 1148 ::_exit(code); 1149 } else { 1150 ALOGI("VM exiting with result code %d.", code); 1151 onExit(code); 1152 ::exit(code); 1153 } 1154} 1155 1156void AndroidRuntime::onVmCreated(JNIEnv* env) 1157{ 1158 // If AndroidRuntime had anything to do here, we'd have done it in 'start'. 1159} 1160 1161/* 1162 * Get the JNIEnv pointer for this thread. 1163 * 1164 * Returns NULL if the slot wasn't allocated or populated. 1165 */ 1166/*static*/ JNIEnv* AndroidRuntime::getJNIEnv() 1167{ 1168 JNIEnv* env; 1169 JavaVM* vm = AndroidRuntime::getJavaVM(); 1170 assert(vm != NULL); 1171 1172 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) 1173 return NULL; 1174 return env; 1175} 1176 1177/* 1178 * Makes the current thread visible to the VM. 1179 * 1180 * The JNIEnv pointer returned is only valid for the current thread, and 1181 * thus must be tucked into thread-local storage. 1182 */ 1183static int javaAttachThread(const char* threadName, JNIEnv** pEnv) 1184{ 1185 JavaVMAttachArgs args; 1186 JavaVM* vm; 1187 jint result; 1188 1189 vm = AndroidRuntime::getJavaVM(); 1190 assert(vm != NULL); 1191 1192 args.version = JNI_VERSION_1_4; 1193 args.name = (char*) threadName; 1194 args.group = NULL; 1195 1196 result = vm->AttachCurrentThread(pEnv, (void*) &args); 1197 if (result != JNI_OK) 1198 ALOGI("NOTE: attach of thread '%s' failed\n", threadName); 1199 1200 return result; 1201} 1202 1203/* 1204 * Detach the current thread from the set visible to the VM. 1205 */ 1206static int javaDetachThread(void) 1207{ 1208 JavaVM* vm; 1209 jint result; 1210 1211 vm = AndroidRuntime::getJavaVM(); 1212 assert(vm != NULL); 1213 1214 result = vm->DetachCurrentThread(); 1215 if (result != JNI_OK) 1216 ALOGE("ERROR: thread detach failed\n"); 1217 return result; 1218} 1219 1220/* 1221 * When starting a native thread that will be visible from the VM, we 1222 * bounce through this to get the right attach/detach action. 1223 * Note that this function calls free(args) 1224 */ 1225/*static*/ int AndroidRuntime::javaThreadShell(void* args) { 1226 void* start = ((void**)args)[0]; 1227 void* userData = ((void **)args)[1]; 1228 char* name = (char*) ((void **)args)[2]; // we own this storage 1229 free(args); 1230 JNIEnv* env; 1231 int result; 1232 1233 /* hook us into the VM */ 1234 if (javaAttachThread(name, &env) != JNI_OK) 1235 return -1; 1236 1237 /* start the thread running */ 1238 result = (*(android_thread_func_t)start)(userData); 1239 1240 /* unhook us */ 1241 javaDetachThread(); 1242 free(name); 1243 1244 return result; 1245} 1246 1247/* 1248 * This is invoked from androidCreateThreadEtc() via the callback 1249 * set with androidSetCreateThreadFunc(). 1250 * 1251 * We need to create the new thread in such a way that it gets hooked 1252 * into the VM before it really starts executing. 1253 */ 1254/*static*/ int AndroidRuntime::javaCreateThreadEtc( 1255 android_thread_func_t entryFunction, 1256 void* userData, 1257 const char* threadName, 1258 int32_t threadPriority, 1259 size_t threadStackSize, 1260 android_thread_id_t* threadId) 1261{ 1262 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free 1263 int result; 1264 1265 LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc"); 1266 1267 args[0] = (void*) entryFunction; 1268 args[1] = userData; 1269 args[2] = (void*) strdup(threadName); // javaThreadShell must free 1270 1271 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, 1272 threadName, threadPriority, threadStackSize, threadId); 1273 return result; 1274} 1275 1276/* 1277 * Create a thread that is visible from the VM. 1278 * 1279 * This is called from elsewhere in the library. 1280 */ 1281/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, 1282 void (*start)(void *), void* arg) 1283{ 1284 android_thread_id_t threadId = 0; 1285 javaCreateThreadEtc((android_thread_func_t) start, arg, name, 1286 ANDROID_PRIORITY_DEFAULT, 0, &threadId); 1287 return threadId; 1288} 1289 1290#if 0 1291static void quickTest(void* arg) 1292{ 1293 const char* str = (const char*) arg; 1294 1295 printf("In quickTest: %s\n", str); 1296} 1297#endif 1298 1299#ifdef NDEBUG 1300 #define REG_JNI(name) { name } 1301 struct RegJNIRec { 1302 int (*mProc)(JNIEnv*); 1303 }; 1304#else 1305 #define REG_JNI(name) { name, #name } 1306 struct RegJNIRec { 1307 int (*mProc)(JNIEnv*); 1308 const char* mName; 1309 }; 1310#endif 1311 1312typedef void (*RegJAMProc)(); 1313 1314static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) 1315{ 1316 for (size_t i = 0; i < count; i++) { 1317 if (array[i].mProc(env) < 0) { 1318#ifndef NDEBUG 1319 ALOGD("----------!!! %s failed to load\n", array[i].mName); 1320#endif 1321 return -1; 1322 } 1323 } 1324 return 0; 1325} 1326 1327static const RegJNIRec gRegJNI[] = { 1328 REG_JNI(register_com_android_internal_os_RuntimeInit), 1329 REG_JNI(register_com_android_internal_os_ZygoteInit_nativeZygoteInit), 1330 REG_JNI(register_android_os_SystemClock), 1331 REG_JNI(register_android_util_EventLog), 1332 REG_JNI(register_android_util_Log), 1333 REG_JNI(register_android_util_MemoryIntArray), 1334 REG_JNI(register_android_util_PathParser), 1335 REG_JNI(register_android_app_admin_SecurityLog), 1336 REG_JNI(register_android_content_AssetManager), 1337 REG_JNI(register_android_content_StringBlock), 1338 REG_JNI(register_android_content_XmlBlock), 1339 REG_JNI(register_android_text_AndroidCharacter), 1340 REG_JNI(register_android_text_StaticLayout), 1341 REG_JNI(register_android_text_AndroidBidi), 1342 REG_JNI(register_android_view_InputDevice), 1343 REG_JNI(register_android_view_KeyCharacterMap), 1344 REG_JNI(register_android_os_Process), 1345 REG_JNI(register_android_os_SystemProperties), 1346 REG_JNI(register_android_os_Binder), 1347 REG_JNI(register_android_os_Parcel), 1348 REG_JNI(register_android_os_HidlSupport), 1349 REG_JNI(register_android_os_HwBinder), 1350 REG_JNI(register_android_os_HwBlob), 1351 REG_JNI(register_android_os_HwParcel), 1352 REG_JNI(register_android_os_HwRemoteBinder), 1353 REG_JNI(register_android_os_VintfObject), 1354 REG_JNI(register_android_os_VintfRuntimeInfo), 1355 REG_JNI(register_android_nio_utils), 1356 REG_JNI(register_android_graphics_Canvas), 1357 REG_JNI(register_android_graphics_Graphics), 1358 REG_JNI(register_android_view_DisplayEventReceiver), 1359 REG_JNI(register_android_view_RenderNode), 1360 REG_JNI(register_android_view_RenderNodeAnimator), 1361 REG_JNI(register_android_view_DisplayListCanvas), 1362 REG_JNI(register_android_view_HardwareLayer), 1363 REG_JNI(register_android_view_ThreadedRenderer), 1364 REG_JNI(register_android_view_Surface), 1365 REG_JNI(register_android_view_SurfaceControl), 1366 REG_JNI(register_android_view_SurfaceSession), 1367 REG_JNI(register_android_view_TextureView), 1368 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), 1369 REG_JNI(register_com_google_android_gles_jni_EGLImpl), 1370 REG_JNI(register_com_google_android_gles_jni_GLImpl), 1371 REG_JNI(register_android_opengl_jni_EGL14), 1372 REG_JNI(register_android_opengl_jni_EGLExt), 1373 REG_JNI(register_android_opengl_jni_GLES10), 1374 REG_JNI(register_android_opengl_jni_GLES10Ext), 1375 REG_JNI(register_android_opengl_jni_GLES11), 1376 REG_JNI(register_android_opengl_jni_GLES11Ext), 1377 REG_JNI(register_android_opengl_jni_GLES20), 1378 REG_JNI(register_android_opengl_jni_GLES30), 1379 REG_JNI(register_android_opengl_jni_GLES31), 1380 REG_JNI(register_android_opengl_jni_GLES31Ext), 1381 REG_JNI(register_android_opengl_jni_GLES32), 1382 1383 REG_JNI(register_android_graphics_Bitmap), 1384 REG_JNI(register_android_graphics_BitmapFactory), 1385 REG_JNI(register_android_graphics_BitmapRegionDecoder), 1386 REG_JNI(register_android_graphics_Camera), 1387 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), 1388 REG_JNI(register_android_graphics_CanvasProperty), 1389 REG_JNI(register_android_graphics_ColorFilter), 1390 REG_JNI(register_android_graphics_DrawFilter), 1391 REG_JNI(register_android_graphics_FontFamily), 1392 REG_JNI(register_android_graphics_GraphicBuffer), 1393 REG_JNI(register_android_graphics_Interpolator), 1394 REG_JNI(register_android_graphics_MaskFilter), 1395 REG_JNI(register_android_graphics_Matrix), 1396 REG_JNI(register_android_graphics_Movie), 1397 REG_JNI(register_android_graphics_NinePatch), 1398 REG_JNI(register_android_graphics_Paint), 1399 REG_JNI(register_android_graphics_Path), 1400 REG_JNI(register_android_graphics_PathMeasure), 1401 REG_JNI(register_android_graphics_PathEffect), 1402 REG_JNI(register_android_graphics_Picture), 1403 REG_JNI(register_android_graphics_Region), 1404 REG_JNI(register_android_graphics_Shader), 1405 REG_JNI(register_android_graphics_SurfaceTexture), 1406 REG_JNI(register_android_graphics_Typeface), 1407 REG_JNI(register_android_graphics_YuvImage), 1408 REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable), 1409 REG_JNI(register_android_graphics_drawable_VectorDrawable), 1410 REG_JNI(register_android_graphics_pdf_PdfDocument), 1411 REG_JNI(register_android_graphics_pdf_PdfEditor), 1412 REG_JNI(register_android_graphics_pdf_PdfRenderer), 1413 1414 REG_JNI(register_android_database_CursorWindow), 1415 REG_JNI(register_android_database_SQLiteConnection), 1416 REG_JNI(register_android_database_SQLiteGlobal), 1417 REG_JNI(register_android_database_SQLiteDebug), 1418 REG_JNI(register_android_os_Debug), 1419 REG_JNI(register_android_os_FileObserver), 1420 REG_JNI(register_android_os_GraphicsEnvironment), 1421 REG_JNI(register_android_os_MessageQueue), 1422 REG_JNI(register_android_os_SELinux), 1423 REG_JNI(register_android_os_seccomp), 1424 REG_JNI(register_android_os_Trace), 1425 REG_JNI(register_android_os_UEventObserver), 1426 REG_JNI(register_android_net_LocalSocketImpl), 1427 REG_JNI(register_android_net_NetworkUtils), 1428 REG_JNI(register_android_os_MemoryFile), 1429 REG_JNI(register_android_os_SharedMemory), 1430 REG_JNI(register_com_android_internal_os_ClassLoaderFactory), 1431 REG_JNI(register_com_android_internal_os_Zygote), 1432 REG_JNI(register_com_android_internal_os_ZygoteInit), 1433 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), 1434 REG_JNI(register_android_hardware_Camera), 1435 REG_JNI(register_android_hardware_camera2_CameraMetadata), 1436 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), 1437 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), 1438 REG_JNI(register_android_hardware_camera2_DngCreator), 1439 REG_JNI(register_android_hardware_HardwareBuffer), 1440 REG_JNI(register_android_hardware_SensorManager), 1441 REG_JNI(register_android_hardware_SerialPort), 1442 REG_JNI(register_android_hardware_SoundTrigger), 1443 REG_JNI(register_android_hardware_UsbDevice), 1444 REG_JNI(register_android_hardware_UsbDeviceConnection), 1445 REG_JNI(register_android_hardware_UsbRequest), 1446 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), 1447 REG_JNI(register_android_media_AudioRecord), 1448 REG_JNI(register_android_media_AudioSystem), 1449 REG_JNI(register_android_media_AudioTrack), 1450 REG_JNI(register_android_media_JetPlayer), 1451 REG_JNI(register_android_media_RemoteDisplay), 1452 REG_JNI(register_android_media_ToneGenerator), 1453 1454 REG_JNI(register_android_opengl_classes), 1455 REG_JNI(register_android_server_NetworkManagementSocketTagger), 1456 REG_JNI(register_android_ddm_DdmHandleNativeHeap), 1457 REG_JNI(register_android_backup_BackupDataInput), 1458 REG_JNI(register_android_backup_BackupDataOutput), 1459 REG_JNI(register_android_backup_FileBackupHelperBase), 1460 REG_JNI(register_android_backup_BackupHelperDispatcher), 1461 REG_JNI(register_android_app_backup_FullBackup), 1462 REG_JNI(register_android_app_Activity), 1463 REG_JNI(register_android_app_ActivityThread), 1464 REG_JNI(register_android_app_ApplicationLoaders), 1465 REG_JNI(register_android_app_NativeActivity), 1466 REG_JNI(register_android_util_jar_StrictJarFile), 1467 REG_JNI(register_android_view_InputChannel), 1468 REG_JNI(register_android_view_InputEventReceiver), 1469 REG_JNI(register_android_view_InputEventSender), 1470 REG_JNI(register_android_view_InputQueue), 1471 REG_JNI(register_android_view_KeyEvent), 1472 REG_JNI(register_android_view_MotionEvent), 1473 REG_JNI(register_android_view_PointerIcon), 1474 REG_JNI(register_android_view_VelocityTracker), 1475 1476 REG_JNI(register_android_content_res_ObbScanner), 1477 REG_JNI(register_android_content_res_Configuration), 1478 1479 REG_JNI(register_android_animation_PropertyValuesHolder), 1480 REG_JNI(register_com_android_internal_content_NativeLibraryHelper), 1481 REG_JNI(register_com_android_internal_net_NetworkStatsFactory), 1482 REG_JNI(register_com_android_internal_os_FuseAppLoop), 1483}; 1484 1485/* 1486 * Register android native functions with the VM. 1487 */ 1488/*static*/ int AndroidRuntime::startReg(JNIEnv* env) 1489{ 1490 ATRACE_NAME("RegisterAndroidNatives"); 1491 /* 1492 * This hook causes all future threads created in this process to be 1493 * attached to the JavaVM. (This needs to go away in favor of JNI 1494 * Attach calls.) 1495 */ 1496 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); 1497 1498 ALOGV("--- registering native functions ---\n"); 1499 1500 /* 1501 * Every "register" function calls one or more things that return 1502 * a local reference (e.g. FindClass). Because we haven't really 1503 * started the VM yet, they're all getting stored in the base frame 1504 * and never released. Use Push/Pop to manage the storage. 1505 */ 1506 env->PushLocalFrame(200); 1507 1508 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { 1509 env->PopLocalFrame(NULL); 1510 return -1; 1511 } 1512 env->PopLocalFrame(NULL); 1513 1514 //createJavaThread("fubar", quickTest, (void*) "hello"); 1515 1516 return 0; 1517} 1518 1519AndroidRuntime* AndroidRuntime::getRuntime() 1520{ 1521 return gCurRuntime; 1522} 1523 1524/** 1525 * Used by surface flinger's DdmConnection to register native methods from 1526 * the framework. 1527 */ 1528extern "C" jint registerFrameworkNatives(JNIEnv* env) { 1529 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1530} 1531} // namespace android 1532