AndroidRuntime.cpp revision fffb273affa011d1d062487f91aa4b3db8a029aa
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_net_TrafficStats(JNIEnv* env); 177extern int register_android_text_AndroidCharacter(JNIEnv *env); 178extern int register_android_text_StaticLayout(JNIEnv *env); 179extern int register_android_text_AndroidBidi(JNIEnv *env); 180extern int register_android_opengl_classes(JNIEnv *env); 181extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env); 182extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env); 183extern int register_android_backup_BackupDataInput(JNIEnv *env); 184extern int register_android_backup_BackupDataOutput(JNIEnv *env); 185extern int register_android_backup_FileBackupHelperBase(JNIEnv *env); 186extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env); 187extern int register_android_app_backup_FullBackup(JNIEnv *env); 188extern int register_android_app_Activity(JNIEnv *env); 189extern int register_android_app_ActivityThread(JNIEnv *env); 190extern int register_android_app_ApplicationLoaders(JNIEnv *env); 191extern int register_android_app_NativeActivity(JNIEnv *env); 192extern int register_android_media_RemoteDisplay(JNIEnv *env); 193extern int register_android_util_jar_StrictJarFile(JNIEnv* env); 194extern int register_android_view_InputChannel(JNIEnv* env); 195extern int register_android_view_InputDevice(JNIEnv* env); 196extern int register_android_view_InputEventReceiver(JNIEnv* env); 197extern int register_android_view_InputEventSender(JNIEnv* env); 198extern int register_android_view_InputQueue(JNIEnv* env); 199extern int register_android_view_KeyCharacterMap(JNIEnv *env); 200extern int register_android_view_KeyEvent(JNIEnv* env); 201extern int register_android_view_MotionEvent(JNIEnv* env); 202extern int register_android_view_PointerIcon(JNIEnv* env); 203extern int register_android_view_VelocityTracker(JNIEnv* env); 204extern int register_android_content_res_ObbScanner(JNIEnv* env); 205extern int register_android_content_res_Configuration(JNIEnv* env); 206extern int register_android_animation_PropertyValuesHolder(JNIEnv *env); 207extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env); 208extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env); 209extern int register_com_android_internal_os_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 char jdwpProviderBuf[sizeof("-XjdwpProvider:") - 1 + PROPERTY_VALUE_MAX]; 647 648 bool checkJni = false; 649 property_get("dalvik.vm.checkjni", propBuf, ""); 650 if (strcmp(propBuf, "true") == 0) { 651 checkJni = true; 652 } else if (strcmp(propBuf, "false") != 0) { 653 /* property is neither true nor false; fall back on kernel parameter */ 654 property_get("ro.kernel.android.checkjni", propBuf, ""); 655 if (propBuf[0] == '1') { 656 checkJni = true; 657 } 658 } 659 ALOGV("CheckJNI is %s\n", checkJni ? "ON" : "OFF"); 660 if (checkJni) { 661 /* extended JNI checking */ 662 addOption("-Xcheck:jni"); 663 664 /* with -Xcheck:jni, this provides a JNI function call trace */ 665 //addOption("-verbose:jni"); 666 } 667 668 property_get("dalvik.vm.execution-mode", propBuf, ""); 669 if (strcmp(propBuf, "int:portable") == 0) { 670 executionMode = kEMIntPortable; 671 } else if (strcmp(propBuf, "int:fast") == 0) { 672 executionMode = kEMIntFast; 673 } else if (strcmp(propBuf, "int:jit") == 0) { 674 executionMode = kEMJitCompiler; 675 } 676 677 // If dalvik.vm.stack-trace-dir is set, it enables the "new" stack trace 678 // dump scheme and a new file is created for each stack dump. If it isn't set, 679 // the old scheme is enabled. 680 property_get("dalvik.vm.stack-trace-dir", propBuf, ""); 681 if (strlen(propBuf) > 0) { 682 addOption("-Xusetombstonedtraces"); 683 } else { 684 parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:"); 685 } 686 687 strcpy(jniOptsBuf, "-Xjniopts:"); 688 if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) { 689 ALOGI("JNI options: '%s'\n", jniOptsBuf); 690 } 691 692 /* route exit() to our handler */ 693 addOption("exit", (void*) runtime_exit); 694 695 /* route fprintf() to our handler */ 696 addOption("vfprintf", (void*) runtime_vfprintf); 697 698 /* register the framework-specific "is sensitive thread" hook */ 699 addOption("sensitiveThread", (void*) runtime_isSensitiveThread); 700 701 /* enable verbose; standard options are { jni, gc, class } */ 702 //addOption("-verbose:jni"); 703 addOption("-verbose:gc"); 704 //addOption("-verbose:class"); 705 706 /* 707 * The default starting and maximum size of the heap. Larger 708 * values should be specified in a product property override. 709 */ 710 parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m"); 711 parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m"); 712 713 parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit="); 714 parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree="); 715 parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree="); 716 parseRuntimeOption("dalvik.vm.heaptargetutilization", 717 heaptargetutilizationOptsBuf, 718 "-XX:HeapTargetUtilization="); 719 720 /* Foreground heap growth multiplier option */ 721 parseRuntimeOption("dalvik.vm.foreground-heap-growth-multiplier", 722 foregroundHeapGrowthMultiplierOptsBuf, 723 "-XX:ForegroundHeapGrowthMultiplier="); 724 725 /* 726 * JIT related options. 727 */ 728 parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:"); 729 parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:"); 730 parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:"); 731 parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:"); 732 property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, ""); 733 if (strcmp(useJitProfilesOptsBuf, "true") == 0) { 734 addOption("-Xjitsaveprofilinginfo"); 735 } 736 737 parseRuntimeOption("dalvik.vm.jitprithreadweight", 738 jitprithreadweightOptBuf, 739 "-Xjitprithreadweight:"); 740 741 parseRuntimeOption("dalvik.vm.jittransitionweight", 742 jittransitionweightOptBuf, 743 "-Xjittransitionweight:"); 744 745 /* 746 * Madvise related options. 747 */ 748 parseRuntimeOption("dalvik.vm.madvise-random", madviseRandomOptsBuf, "-XX:MadviseRandomAccess:"); 749 750 /* 751 * Profile related options. 752 */ 753 parseRuntimeOption("dalvik.vm.hot-startup-method-samples", hotstartupsamplesOptsBuf, 754 "-Xps-hot-startup-method-samples:"); 755 756 property_get("ro.config.low_ram", propBuf, ""); 757 if (strcmp(propBuf, "true") == 0) { 758 addOption("-XX:LowMemoryMode"); 759 } 760 761 parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:"); 762 parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC="); 763 764 /* 765 * Enable debugging only for apps forked from zygote. 766 * Set suspend=y to pause during VM init and use android ADB transport. 767 */ 768 if (zygote) { 769 addOption("-XjdwpOptions:suspend=n,server=y"); 770 } 771 772 // Set the JDWP provider. By default let the runtime choose. 773 parseRuntimeOption("dalvik.vm.jdwp-provider", 774 jdwpProviderBuf, 775 "-XjdwpProvider:", 776 "default"); 777 778 parseRuntimeOption("dalvik.vm.lockprof.threshold", 779 lockProfThresholdBuf, 780 "-Xlockprofthreshold:"); 781 782 if (executionMode == kEMIntPortable) { 783 addOption("-Xint:portable"); 784 } else if (executionMode == kEMIntFast) { 785 addOption("-Xint:fast"); 786 } else if (executionMode == kEMJitCompiler) { 787 addOption("-Xint:jit"); 788 } 789 790 // If we are booting without the real /data, don't spend time compiling. 791 property_get("vold.decrypt", voldDecryptBuf, ""); 792 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || 793 (strcmp(voldDecryptBuf, "1") == 0)); 794 795 // Extra options for boot.art/boot.oat image generation. 796 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, 797 "-Xms", "-Ximage-compiler-option"); 798 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, 799 "-Xmx", "-Ximage-compiler-option"); 800 if (skip_compilation) { 801 addOption("-Ximage-compiler-option"); 802 addOption("--compiler-filter=assume-verified"); 803 } else { 804 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, 805 "--compiler-filter=", "-Ximage-compiler-option"); 806 } 807 808 // If there is a boot profile, it takes precedence over the image and preloaded classes. 809 if (hasFile("/system/etc/boot-image.prof")) { 810 addOption("-Ximage-compiler-option"); 811 addOption("--profile-file=/system/etc/boot-image.prof"); 812 addOption("-Ximage-compiler-option"); 813 addOption("--compiler-filter=speed-profile"); 814 } else { 815 // Make sure there is a preloaded-classes file. 816 if (!hasFile("/system/etc/preloaded-classes")) { 817 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n", 818 strerror(errno)); 819 return -1; 820 } 821 addOption("-Ximage-compiler-option"); 822 addOption("--image-classes=/system/etc/preloaded-classes"); 823 824 // If there is a compiled-classes file, push it. 825 if (hasFile("/system/etc/compiled-classes")) { 826 addOption("-Ximage-compiler-option"); 827 addOption("--compiled-classes=/system/etc/compiled-classes"); 828 } 829 830 // If there is a dirty-image-objects file, push it. 831 if (hasFile("/system/etc/dirty-image-objects")) { 832 addOption("-Ximage-compiler-option"); 833 addOption("--dirty-image-objects=/system/etc/dirty-image-objects"); 834 } 835 } 836 837 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); 838 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); 839 840 // Extra options for DexClassLoader. 841 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, 842 "-Xms", "-Xcompiler-option"); 843 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, 844 "-Xmx", "-Xcompiler-option"); 845 if (skip_compilation) { 846 addOption("-Xcompiler-option"); 847 addOption("--compiler-filter=assume-verified"); 848 849 // We skip compilation when a minimal runtime is brought up for decryption. In that case 850 // /data is temporarily backed by a tmpfs, which is usually small. 851 // If the system image contains prebuilts, they will be relocated into the tmpfs. In this 852 // specific situation it is acceptable to *not* relocate and run out of the prebuilts 853 // directly instead. 854 addOption("--runtime-arg"); 855 addOption("-Xnorelocate"); 856 } else { 857 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, 858 "--compiler-filter=", "-Xcompiler-option"); 859 } 860 parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option"); 861 parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j", 862 "-Ximage-compiler-option"); 863 864 // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to 865 // pass the instruction-set-features/variant as an image-compiler-option. 866 // TODO: Find a better way for the instruction-set. 867#if defined(__arm__) 868 constexpr const char* instruction_set = "arm"; 869#elif defined(__aarch64__) 870 constexpr const char* instruction_set = "arm64"; 871#elif defined(__mips__) && !defined(__LP64__) 872 constexpr const char* instruction_set = "mips"; 873#elif defined(__mips__) && defined(__LP64__) 874 constexpr const char* instruction_set = "mips64"; 875#elif defined(__i386__) 876 constexpr const char* instruction_set = "x86"; 877#elif defined(__x86_64__) 878 constexpr const char* instruction_set = "x86_64"; 879#else 880 constexpr const char* instruction_set = "unknown"; 881#endif 882 // Note: it is OK to reuse the buffer, as the values are exactly the same between 883 // * compiler-option, used for runtime compilation (DexClassLoader) 884 // * image-compiler-option, used for boot-image compilation on device 885 886 // Copy the variant. 887 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set); 888 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 889 "--instruction-set-variant=", "-Ximage-compiler-option"); 890 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 891 "--instruction-set-variant=", "-Xcompiler-option"); 892 // Copy the features. 893 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set); 894 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 895 "--instruction-set-features=", "-Ximage-compiler-option"); 896 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 897 "--instruction-set-features=", "-Xcompiler-option"); 898 899 900 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); 901 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); 902 903 /* extra options; parse this late so it overrides others */ 904 property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); 905 parseExtraOpts(extraOptsBuf, NULL); 906 907 /* Set the properties for locale */ 908 { 909 strcpy(localeOption, "-Duser.locale="); 910 const std::string locale = readLocale(); 911 strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX); 912 addOption(localeOption); 913 } 914 915 // Trace files are stored in /data/misc/trace which is writable only in debug mode. 916 property_get("ro.debuggable", propBuf, "0"); 917 if (strcmp(propBuf, "1") == 0) { 918 property_get("dalvik.vm.method-trace", propBuf, "false"); 919 if (strcmp(propBuf, "true") == 0) { 920 addOption("-Xmethod-trace"); 921 parseRuntimeOption("dalvik.vm.method-trace-file", 922 methodTraceFileBuf, 923 "-Xmethod-trace-file:"); 924 parseRuntimeOption("dalvik.vm.method-trace-file-siz", 925 methodTraceFileSizeBuf, 926 "-Xmethod-trace-file-size:"); 927 property_get("dalvik.vm.method-trace-stream", propBuf, "false"); 928 if (strcmp(propBuf, "true") == 0) { 929 addOption("-Xmethod-trace-stream"); 930 } 931 } 932 } 933 934 // Native bridge library. "0" means that native bridge is disabled. 935 property_get("ro.dalvik.vm.native.bridge", propBuf, ""); 936 if (propBuf[0] == '\0') { 937 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); 938 } else if (strcmp(propBuf, "0") != 0) { 939 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, 940 "-XX:NativeBridge=%s", propBuf); 941 addOption(nativeBridgeLibrary); 942 } 943 944#if defined(__LP64__) 945 const char* cpu_abilist_property_name = "ro.product.cpu.abilist64"; 946#else 947 const char* cpu_abilist_property_name = "ro.product.cpu.abilist32"; 948#endif // defined(__LP64__) 949 property_get(cpu_abilist_property_name, propBuf, ""); 950 if (propBuf[0] == '\0') { 951 ALOGE("%s is not expected to be empty", cpu_abilist_property_name); 952 return -1; 953 } 954 snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf); 955 addOption(cpuAbiListBuf); 956 957 // Dalvik-cache pruning counter. 958 parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf, 959 "-Xzygote-max-boot-retry="); 960 961 /* 962 * When running with debug.generate-debug-info, add --generate-debug-info to 963 * the compiler options so that the boot image, if it is compiled on device, 964 * will include native debugging information. 965 */ 966 property_get("debug.generate-debug-info", propBuf, ""); 967 if (strcmp(propBuf, "true") == 0) { 968 addOption("-Xcompiler-option"); 969 addOption("--generate-debug-info"); 970 addOption("-Ximage-compiler-option"); 971 addOption("--generate-debug-info"); 972 } 973 974 /* 975 * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will 976 * contain the fingerprint and can be parsed. 977 * Fingerprints are potentially longer than PROPERTY_VALUE_MAX, so parseRuntimeOption() cannot 978 * be used here. 979 * Do not ever re-assign fingerprintBuf as its c_str() value is stored in mOptions. 980 */ 981 std::string fingerprint = GetProperty("ro.build.fingerprint", ""); 982 if (!fingerprint.empty()) { 983 fingerprintBuf = "-Xfingerprint:" + fingerprint; 984 addOption(fingerprintBuf.c_str()); 985 } 986 987 initArgs.version = JNI_VERSION_1_4; 988 initArgs.options = mOptions.editArray(); 989 initArgs.nOptions = mOptions.size(); 990 initArgs.ignoreUnrecognized = JNI_FALSE; 991 992 /* 993 * Initialize the VM. 994 * 995 * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. 996 * If this call succeeds, the VM is ready, and we can start issuing 997 * JNI calls. 998 */ 999 if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { 1000 ALOGE("JNI_CreateJavaVM failed\n"); 1001 return -1; 1002 } 1003 1004 return 0; 1005} 1006 1007char* AndroidRuntime::toSlashClassName(const char* className) 1008{ 1009 char* result = strdup(className); 1010 for (char* cp = result; *cp != '\0'; cp++) { 1011 if (*cp == '.') { 1012 *cp = '/'; 1013 } 1014 } 1015 return result; 1016} 1017 1018/** Create a Java string from an ASCII or Latin-1 string */ 1019jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { 1020 if (!bytes) return NULL; 1021 int length = strlen(bytes); 1022 jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); 1023 if (!buffer) return NULL; 1024 jchar* chp = buffer; 1025 for (int i = 0; i < length; i++) { 1026 *chp++ = *bytes++; 1027 } 1028 return env->NewString(buffer, length); 1029} 1030 1031 1032/* 1033 * Start the Android runtime. This involves starting the virtual machine 1034 * and calling the "static void main(String[] args)" method in the class 1035 * named by "className". 1036 * 1037 * Passes the main function two arguments, the class name and the specified 1038 * options string. 1039 */ 1040void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote) 1041{ 1042 ALOGD(">>>>>> START %s uid %d <<<<<<\n", 1043 className != NULL ? className : "(unknown)", getuid()); 1044 1045 static const String8 startSystemServer("start-system-server"); 1046 1047 /* 1048 * 'startSystemServer == true' means runtime is obsolete and not run from 1049 * init.rc anymore, so we print out the boot start event here. 1050 */ 1051 for (size_t i = 0; i < options.size(); ++i) { 1052 if (options[i] == startSystemServer) { 1053 /* track our progress through the boot sequence */ 1054 const int LOG_BOOT_PROGRESS_START = 3000; 1055 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); 1056 } 1057 } 1058 1059 const char* rootDir = getenv("ANDROID_ROOT"); 1060 if (rootDir == NULL) { 1061 rootDir = "/system"; 1062 if (!hasDir("/system")) { 1063 LOG_FATAL("No root directory specified, and /android does not exist."); 1064 return; 1065 } 1066 setenv("ANDROID_ROOT", rootDir, 1); 1067 } 1068 1069 //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); 1070 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); 1071 1072 /* start the virtual machine */ 1073 JniInvocation jni_invocation; 1074 jni_invocation.Init(NULL); 1075 JNIEnv* env; 1076 if (startVm(&mJavaVM, &env, zygote) != 0) { 1077 return; 1078 } 1079 onVmCreated(env); 1080 1081 /* 1082 * Register android functions. 1083 */ 1084 if (startReg(env) < 0) { 1085 ALOGE("Unable to register all android natives\n"); 1086 return; 1087 } 1088 1089 /* 1090 * We want to call main() with a String array with arguments in it. 1091 * At present we have two arguments, the class name and an option string. 1092 * Create an array to hold them. 1093 */ 1094 jclass stringClass; 1095 jobjectArray strArray; 1096 jstring classNameStr; 1097 1098 stringClass = env->FindClass("java/lang/String"); 1099 assert(stringClass != NULL); 1100 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); 1101 assert(strArray != NULL); 1102 classNameStr = env->NewStringUTF(className); 1103 assert(classNameStr != NULL); 1104 env->SetObjectArrayElement(strArray, 0, classNameStr); 1105 1106 for (size_t i = 0; i < options.size(); ++i) { 1107 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); 1108 assert(optionsStr != NULL); 1109 env->SetObjectArrayElement(strArray, i + 1, optionsStr); 1110 } 1111 1112 /* 1113 * Start VM. This thread becomes the main thread of the VM, and will 1114 * not return until the VM exits. 1115 */ 1116 char* slashClassName = toSlashClassName(className != NULL ? className : ""); 1117 jclass startClass = env->FindClass(slashClassName); 1118 if (startClass == NULL) { 1119 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); 1120 /* keep going */ 1121 } else { 1122 jmethodID startMeth = env->GetStaticMethodID(startClass, "main", 1123 "([Ljava/lang/String;)V"); 1124 if (startMeth == NULL) { 1125 ALOGE("JavaVM unable to find main() in '%s'\n", className); 1126 /* keep going */ 1127 } else { 1128 env->CallStaticVoidMethod(startClass, startMeth, strArray); 1129 1130#if 0 1131 if (env->ExceptionCheck()) 1132 threadExitUncaughtException(env); 1133#endif 1134 } 1135 } 1136 free(slashClassName); 1137 1138 ALOGD("Shutting down VM\n"); 1139 if (mJavaVM->DetachCurrentThread() != JNI_OK) 1140 ALOGW("Warning: unable to detach main thread\n"); 1141 if (mJavaVM->DestroyJavaVM() != 0) 1142 ALOGW("Warning: VM did not shut down cleanly\n"); 1143} 1144 1145void AndroidRuntime::exit(int code) 1146{ 1147 if (mExitWithoutCleanup) { 1148 ALOGI("VM exiting with result code %d, cleanup skipped.", code); 1149 ::_exit(code); 1150 } else { 1151 ALOGI("VM exiting with result code %d.", code); 1152 onExit(code); 1153 ::exit(code); 1154 } 1155} 1156 1157void AndroidRuntime::onVmCreated(JNIEnv* env) 1158{ 1159 // If AndroidRuntime had anything to do here, we'd have done it in 'start'. 1160} 1161 1162/* 1163 * Get the JNIEnv pointer for this thread. 1164 * 1165 * Returns NULL if the slot wasn't allocated or populated. 1166 */ 1167/*static*/ JNIEnv* AndroidRuntime::getJNIEnv() 1168{ 1169 JNIEnv* env; 1170 JavaVM* vm = AndroidRuntime::getJavaVM(); 1171 assert(vm != NULL); 1172 1173 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) 1174 return NULL; 1175 return env; 1176} 1177 1178/* 1179 * Makes the current thread visible to the VM. 1180 * 1181 * The JNIEnv pointer returned is only valid for the current thread, and 1182 * thus must be tucked into thread-local storage. 1183 */ 1184static int javaAttachThread(const char* threadName, JNIEnv** pEnv) 1185{ 1186 JavaVMAttachArgs args; 1187 JavaVM* vm; 1188 jint result; 1189 1190 vm = AndroidRuntime::getJavaVM(); 1191 assert(vm != NULL); 1192 1193 args.version = JNI_VERSION_1_4; 1194 args.name = (char*) threadName; 1195 args.group = NULL; 1196 1197 result = vm->AttachCurrentThread(pEnv, (void*) &args); 1198 if (result != JNI_OK) 1199 ALOGI("NOTE: attach of thread '%s' failed\n", threadName); 1200 1201 return result; 1202} 1203 1204/* 1205 * Detach the current thread from the set visible to the VM. 1206 */ 1207static int javaDetachThread(void) 1208{ 1209 JavaVM* vm; 1210 jint result; 1211 1212 vm = AndroidRuntime::getJavaVM(); 1213 assert(vm != NULL); 1214 1215 result = vm->DetachCurrentThread(); 1216 if (result != JNI_OK) 1217 ALOGE("ERROR: thread detach failed\n"); 1218 return result; 1219} 1220 1221/* 1222 * When starting a native thread that will be visible from the VM, we 1223 * bounce through this to get the right attach/detach action. 1224 * Note that this function calls free(args) 1225 */ 1226/*static*/ int AndroidRuntime::javaThreadShell(void* args) { 1227 void* start = ((void**)args)[0]; 1228 void* userData = ((void **)args)[1]; 1229 char* name = (char*) ((void **)args)[2]; // we own this storage 1230 free(args); 1231 JNIEnv* env; 1232 int result; 1233 1234 /* hook us into the VM */ 1235 if (javaAttachThread(name, &env) != JNI_OK) 1236 return -1; 1237 1238 /* start the thread running */ 1239 result = (*(android_thread_func_t)start)(userData); 1240 1241 /* unhook us */ 1242 javaDetachThread(); 1243 free(name); 1244 1245 return result; 1246} 1247 1248/* 1249 * This is invoked from androidCreateThreadEtc() via the callback 1250 * set with androidSetCreateThreadFunc(). 1251 * 1252 * We need to create the new thread in such a way that it gets hooked 1253 * into the VM before it really starts executing. 1254 */ 1255/*static*/ int AndroidRuntime::javaCreateThreadEtc( 1256 android_thread_func_t entryFunction, 1257 void* userData, 1258 const char* threadName, 1259 int32_t threadPriority, 1260 size_t threadStackSize, 1261 android_thread_id_t* threadId) 1262{ 1263 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free 1264 int result; 1265 1266 LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc"); 1267 1268 args[0] = (void*) entryFunction; 1269 args[1] = userData; 1270 args[2] = (void*) strdup(threadName); // javaThreadShell must free 1271 1272 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, 1273 threadName, threadPriority, threadStackSize, threadId); 1274 return result; 1275} 1276 1277/* 1278 * Create a thread that is visible from the VM. 1279 * 1280 * This is called from elsewhere in the library. 1281 */ 1282/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, 1283 void (*start)(void *), void* arg) 1284{ 1285 android_thread_id_t threadId = 0; 1286 javaCreateThreadEtc((android_thread_func_t) start, arg, name, 1287 ANDROID_PRIORITY_DEFAULT, 0, &threadId); 1288 return threadId; 1289} 1290 1291#if 0 1292static void quickTest(void* arg) 1293{ 1294 const char* str = (const char*) arg; 1295 1296 printf("In quickTest: %s\n", str); 1297} 1298#endif 1299 1300#ifdef NDEBUG 1301 #define REG_JNI(name) { name } 1302 struct RegJNIRec { 1303 int (*mProc)(JNIEnv*); 1304 }; 1305#else 1306 #define REG_JNI(name) { name, #name } 1307 struct RegJNIRec { 1308 int (*mProc)(JNIEnv*); 1309 const char* mName; 1310 }; 1311#endif 1312 1313typedef void (*RegJAMProc)(); 1314 1315static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) 1316{ 1317 for (size_t i = 0; i < count; i++) { 1318 if (array[i].mProc(env) < 0) { 1319#ifndef NDEBUG 1320 ALOGD("----------!!! %s failed to load\n", array[i].mName); 1321#endif 1322 return -1; 1323 } 1324 } 1325 return 0; 1326} 1327 1328static const RegJNIRec gRegJNI[] = { 1329 REG_JNI(register_com_android_internal_os_RuntimeInit), 1330 REG_JNI(register_com_android_internal_os_ZygoteInit_nativeZygoteInit), 1331 REG_JNI(register_android_os_SystemClock), 1332 REG_JNI(register_android_util_EventLog), 1333 REG_JNI(register_android_util_Log), 1334 REG_JNI(register_android_util_MemoryIntArray), 1335 REG_JNI(register_android_util_PathParser), 1336 REG_JNI(register_android_app_admin_SecurityLog), 1337 REG_JNI(register_android_content_AssetManager), 1338 REG_JNI(register_android_content_StringBlock), 1339 REG_JNI(register_android_content_XmlBlock), 1340 REG_JNI(register_android_text_AndroidCharacter), 1341 REG_JNI(register_android_text_StaticLayout), 1342 REG_JNI(register_android_text_AndroidBidi), 1343 REG_JNI(register_android_view_InputDevice), 1344 REG_JNI(register_android_view_KeyCharacterMap), 1345 REG_JNI(register_android_os_Process), 1346 REG_JNI(register_android_os_SystemProperties), 1347 REG_JNI(register_android_os_Binder), 1348 REG_JNI(register_android_os_Parcel), 1349 REG_JNI(register_android_os_HidlSupport), 1350 REG_JNI(register_android_os_HwBinder), 1351 REG_JNI(register_android_os_HwBlob), 1352 REG_JNI(register_android_os_HwParcel), 1353 REG_JNI(register_android_os_HwRemoteBinder), 1354 REG_JNI(register_android_os_VintfObject), 1355 REG_JNI(register_android_os_VintfRuntimeInfo), 1356 REG_JNI(register_android_nio_utils), 1357 REG_JNI(register_android_graphics_Canvas), 1358 REG_JNI(register_android_graphics_Graphics), 1359 REG_JNI(register_android_view_DisplayEventReceiver), 1360 REG_JNI(register_android_view_RenderNode), 1361 REG_JNI(register_android_view_RenderNodeAnimator), 1362 REG_JNI(register_android_view_DisplayListCanvas), 1363 REG_JNI(register_android_view_HardwareLayer), 1364 REG_JNI(register_android_view_ThreadedRenderer), 1365 REG_JNI(register_android_view_Surface), 1366 REG_JNI(register_android_view_SurfaceControl), 1367 REG_JNI(register_android_view_SurfaceSession), 1368 REG_JNI(register_android_view_TextureView), 1369 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), 1370 REG_JNI(register_com_google_android_gles_jni_EGLImpl), 1371 REG_JNI(register_com_google_android_gles_jni_GLImpl), 1372 REG_JNI(register_android_opengl_jni_EGL14), 1373 REG_JNI(register_android_opengl_jni_EGLExt), 1374 REG_JNI(register_android_opengl_jni_GLES10), 1375 REG_JNI(register_android_opengl_jni_GLES10Ext), 1376 REG_JNI(register_android_opengl_jni_GLES11), 1377 REG_JNI(register_android_opengl_jni_GLES11Ext), 1378 REG_JNI(register_android_opengl_jni_GLES20), 1379 REG_JNI(register_android_opengl_jni_GLES30), 1380 REG_JNI(register_android_opengl_jni_GLES31), 1381 REG_JNI(register_android_opengl_jni_GLES31Ext), 1382 REG_JNI(register_android_opengl_jni_GLES32), 1383 1384 REG_JNI(register_android_graphics_Bitmap), 1385 REG_JNI(register_android_graphics_BitmapFactory), 1386 REG_JNI(register_android_graphics_BitmapRegionDecoder), 1387 REG_JNI(register_android_graphics_Camera), 1388 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), 1389 REG_JNI(register_android_graphics_CanvasProperty), 1390 REG_JNI(register_android_graphics_ColorFilter), 1391 REG_JNI(register_android_graphics_DrawFilter), 1392 REG_JNI(register_android_graphics_FontFamily), 1393 REG_JNI(register_android_graphics_GraphicBuffer), 1394 REG_JNI(register_android_graphics_Interpolator), 1395 REG_JNI(register_android_graphics_MaskFilter), 1396 REG_JNI(register_android_graphics_Matrix), 1397 REG_JNI(register_android_graphics_Movie), 1398 REG_JNI(register_android_graphics_NinePatch), 1399 REG_JNI(register_android_graphics_Paint), 1400 REG_JNI(register_android_graphics_Path), 1401 REG_JNI(register_android_graphics_PathMeasure), 1402 REG_JNI(register_android_graphics_PathEffect), 1403 REG_JNI(register_android_graphics_Picture), 1404 REG_JNI(register_android_graphics_Region), 1405 REG_JNI(register_android_graphics_Shader), 1406 REG_JNI(register_android_graphics_SurfaceTexture), 1407 REG_JNI(register_android_graphics_Typeface), 1408 REG_JNI(register_android_graphics_YuvImage), 1409 REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable), 1410 REG_JNI(register_android_graphics_drawable_VectorDrawable), 1411 REG_JNI(register_android_graphics_pdf_PdfDocument), 1412 REG_JNI(register_android_graphics_pdf_PdfEditor), 1413 REG_JNI(register_android_graphics_pdf_PdfRenderer), 1414 1415 REG_JNI(register_android_database_CursorWindow), 1416 REG_JNI(register_android_database_SQLiteConnection), 1417 REG_JNI(register_android_database_SQLiteGlobal), 1418 REG_JNI(register_android_database_SQLiteDebug), 1419 REG_JNI(register_android_os_Debug), 1420 REG_JNI(register_android_os_FileObserver), 1421 REG_JNI(register_android_os_GraphicsEnvironment), 1422 REG_JNI(register_android_os_MessageQueue), 1423 REG_JNI(register_android_os_SELinux), 1424 REG_JNI(register_android_os_seccomp), 1425 REG_JNI(register_android_os_Trace), 1426 REG_JNI(register_android_os_UEventObserver), 1427 REG_JNI(register_android_net_LocalSocketImpl), 1428 REG_JNI(register_android_net_NetworkUtils), 1429 REG_JNI(register_android_net_TrafficStats), 1430 REG_JNI(register_android_os_MemoryFile), 1431 REG_JNI(register_android_os_SharedMemory), 1432 REG_JNI(register_com_android_internal_os_ClassLoaderFactory), 1433 REG_JNI(register_com_android_internal_os_Zygote), 1434 REG_JNI(register_com_android_internal_os_ZygoteInit), 1435 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), 1436 REG_JNI(register_android_hardware_Camera), 1437 REG_JNI(register_android_hardware_camera2_CameraMetadata), 1438 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), 1439 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), 1440 REG_JNI(register_android_hardware_camera2_DngCreator), 1441 REG_JNI(register_android_hardware_HardwareBuffer), 1442 REG_JNI(register_android_hardware_SensorManager), 1443 REG_JNI(register_android_hardware_SerialPort), 1444 REG_JNI(register_android_hardware_SoundTrigger), 1445 REG_JNI(register_android_hardware_UsbDevice), 1446 REG_JNI(register_android_hardware_UsbDeviceConnection), 1447 REG_JNI(register_android_hardware_UsbRequest), 1448 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), 1449 REG_JNI(register_android_media_AudioRecord), 1450 REG_JNI(register_android_media_AudioSystem), 1451 REG_JNI(register_android_media_AudioTrack), 1452 REG_JNI(register_android_media_JetPlayer), 1453 REG_JNI(register_android_media_RemoteDisplay), 1454 REG_JNI(register_android_media_ToneGenerator), 1455 1456 REG_JNI(register_android_opengl_classes), 1457 REG_JNI(register_android_server_NetworkManagementSocketTagger), 1458 REG_JNI(register_android_ddm_DdmHandleNativeHeap), 1459 REG_JNI(register_android_backup_BackupDataInput), 1460 REG_JNI(register_android_backup_BackupDataOutput), 1461 REG_JNI(register_android_backup_FileBackupHelperBase), 1462 REG_JNI(register_android_backup_BackupHelperDispatcher), 1463 REG_JNI(register_android_app_backup_FullBackup), 1464 REG_JNI(register_android_app_Activity), 1465 REG_JNI(register_android_app_ActivityThread), 1466 REG_JNI(register_android_app_ApplicationLoaders), 1467 REG_JNI(register_android_app_NativeActivity), 1468 REG_JNI(register_android_util_jar_StrictJarFile), 1469 REG_JNI(register_android_view_InputChannel), 1470 REG_JNI(register_android_view_InputEventReceiver), 1471 REG_JNI(register_android_view_InputEventSender), 1472 REG_JNI(register_android_view_InputQueue), 1473 REG_JNI(register_android_view_KeyEvent), 1474 REG_JNI(register_android_view_MotionEvent), 1475 REG_JNI(register_android_view_PointerIcon), 1476 REG_JNI(register_android_view_VelocityTracker), 1477 1478 REG_JNI(register_android_content_res_ObbScanner), 1479 REG_JNI(register_android_content_res_Configuration), 1480 1481 REG_JNI(register_android_animation_PropertyValuesHolder), 1482 REG_JNI(register_com_android_internal_content_NativeLibraryHelper), 1483 REG_JNI(register_com_android_internal_net_NetworkStatsFactory), 1484 REG_JNI(register_com_android_internal_os_FuseAppLoop), 1485}; 1486 1487/* 1488 * Register android native functions with the VM. 1489 */ 1490/*static*/ int AndroidRuntime::startReg(JNIEnv* env) 1491{ 1492 ATRACE_NAME("RegisterAndroidNatives"); 1493 /* 1494 * This hook causes all future threads created in this process to be 1495 * attached to the JavaVM. (This needs to go away in favor of JNI 1496 * Attach calls.) 1497 */ 1498 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); 1499 1500 ALOGV("--- registering native functions ---\n"); 1501 1502 /* 1503 * Every "register" function calls one or more things that return 1504 * a local reference (e.g. FindClass). Because we haven't really 1505 * started the VM yet, they're all getting stored in the base frame 1506 * and never released. Use Push/Pop to manage the storage. 1507 */ 1508 env->PushLocalFrame(200); 1509 1510 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { 1511 env->PopLocalFrame(NULL); 1512 return -1; 1513 } 1514 env->PopLocalFrame(NULL); 1515 1516 //createJavaThread("fubar", quickTest, (void*) "hello"); 1517 1518 return 0; 1519} 1520 1521AndroidRuntime* AndroidRuntime::getRuntime() 1522{ 1523 return gCurRuntime; 1524} 1525 1526/** 1527 * Used by surface flinger's DdmConnection to register native methods from 1528 * the framework. 1529 */ 1530extern "C" jint registerFrameworkNatives(JNIEnv* env) { 1531 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1532} 1533} // namespace android 1534