AndroidRuntime.cpp revision 0faf1bc43cadc1c1ed0a5379573f260598dcf770
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define ATRACE_TAG ATRACE_TAG_DALVIK 18#define LOG_TAG "AndroidRuntime" 19//#define LOG_NDEBUG 0 20 21#include <android_runtime/AndroidRuntime.h> 22#include <binder/IBinder.h> 23#include <binder/IPCThreadState.h> 24#include <binder/IServiceManager.h> 25#include <utils/Log.h> 26#include <utils/misc.h> 27#include <utils/Trace.h> 28#include <binder/Parcel.h> 29#include <utils/threads.h> 30#include <cutils/properties.h> 31 32#include <SkGraphics.h> 33#include <SkImageDecoder.h> 34 35#include "jni.h" 36#include "JNIHelp.h" 37#include "JniInvocation.h" 38#include "android_util_Binder.h" 39 40#include <stdio.h> 41#include <signal.h> 42#include <sys/stat.h> 43#include <sys/types.h> 44#include <signal.h> 45#include <dirent.h> 46#include <assert.h> 47 48#include <string> 49#include <vector> 50 51 52using namespace android; 53 54extern int register_android_os_Binder(JNIEnv* env); 55extern int register_android_os_Process(JNIEnv* env); 56extern int register_android_graphics_Bitmap(JNIEnv*); 57extern int register_android_graphics_BitmapFactory(JNIEnv*); 58extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*); 59extern int register_android_graphics_Camera(JNIEnv* env); 60extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env); 61extern int register_android_graphics_Graphics(JNIEnv* env); 62extern int register_android_graphics_Interpolator(JNIEnv* env); 63extern int register_android_graphics_MaskFilter(JNIEnv* env); 64extern int register_android_graphics_Movie(JNIEnv* env); 65extern int register_android_graphics_NinePatch(JNIEnv*); 66extern int register_android_graphics_PathEffect(JNIEnv* env); 67extern int register_android_graphics_Shader(JNIEnv* env); 68extern int register_android_graphics_Typeface(JNIEnv* env); 69extern int register_android_graphics_YuvImage(JNIEnv* env); 70 71extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env); 72extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env); 73extern int register_android_opengl_jni_EGL14(JNIEnv* env); 74extern int register_android_opengl_jni_EGLExt(JNIEnv* env); 75extern int register_android_opengl_jni_GLES10(JNIEnv* env); 76extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env); 77extern int register_android_opengl_jni_GLES11(JNIEnv* env); 78extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env); 79extern int register_android_opengl_jni_GLES20(JNIEnv* env); 80extern int register_android_opengl_jni_GLES30(JNIEnv* env); 81extern int register_android_opengl_jni_GLES31(JNIEnv* env); 82extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env); 83 84extern int register_android_hardware_Camera(JNIEnv *env); 85extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env); 86extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env); 87extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env); 88extern int register_android_hardware_camera2_DngCreator(JNIEnv *env); 89extern int register_android_hardware_Radio(JNIEnv *env); 90extern int register_android_hardware_SensorManager(JNIEnv *env); 91extern int register_android_hardware_SerialPort(JNIEnv *env); 92extern int register_android_hardware_SoundTrigger(JNIEnv *env); 93extern int register_android_hardware_UsbDevice(JNIEnv *env); 94extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env); 95extern int register_android_hardware_UsbRequest(JNIEnv *env); 96extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env); 97 98extern int register_android_media_AudioRecord(JNIEnv *env); 99extern int register_android_media_AudioSystem(JNIEnv *env); 100extern int register_android_media_AudioTrack(JNIEnv *env); 101extern int register_android_media_JetPlayer(JNIEnv *env); 102extern int register_android_media_ToneGenerator(JNIEnv *env); 103 104namespace android { 105 106/* 107 * JNI-based registration functions. Note these are properly contained in 108 * namespace android. 109 */ 110extern int register_android_content_AssetManager(JNIEnv* env); 111extern int register_android_util_EventLog(JNIEnv* env); 112extern int register_android_util_Log(JNIEnv* env); 113extern int register_android_util_PathParser(JNIEnv* env); 114extern int register_android_content_StringBlock(JNIEnv* env); 115extern int register_android_content_XmlBlock(JNIEnv* env); 116extern int register_android_graphics_Canvas(JNIEnv* env); 117extern int register_android_graphics_CanvasProperty(JNIEnv* env); 118extern int register_android_graphics_ColorFilter(JNIEnv* env); 119extern int register_android_graphics_DrawFilter(JNIEnv* env); 120extern int register_android_graphics_FontFamily(JNIEnv* env); 121extern int register_android_graphics_LayerRasterizer(JNIEnv*); 122extern int register_android_graphics_Matrix(JNIEnv* env); 123extern int register_android_graphics_Paint(JNIEnv* env); 124extern int register_android_graphics_Path(JNIEnv* env); 125extern int register_android_graphics_PathMeasure(JNIEnv* env); 126extern int register_android_graphics_Picture(JNIEnv*); 127extern int register_android_graphics_PorterDuff(JNIEnv* env); 128extern int register_android_graphics_Rasterizer(JNIEnv* env); 129extern int register_android_graphics_Region(JNIEnv* env); 130extern int register_android_graphics_SurfaceTexture(JNIEnv* env); 131extern int register_android_graphics_Xfermode(JNIEnv* env); 132extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env); 133extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env); 134extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env); 135extern int register_android_view_DisplayEventReceiver(JNIEnv* env); 136extern int register_android_view_DisplayListCanvas(JNIEnv* env); 137extern int register_android_view_GraphicBuffer(JNIEnv* env); 138extern int register_android_view_HardwareLayer(JNIEnv* env); 139extern int register_android_view_RenderNode(JNIEnv* env); 140extern int register_android_view_RenderNodeAnimator(JNIEnv* env); 141extern int register_android_view_Surface(JNIEnv* env); 142extern int register_android_view_SurfaceControl(JNIEnv* env); 143extern int register_android_view_SurfaceSession(JNIEnv* env); 144extern int register_android_view_TextureView(JNIEnv* env); 145extern int register_android_view_ThreadedRenderer(JNIEnv* env); 146extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env); 147extern int register_android_database_CursorWindow(JNIEnv* env); 148extern int register_android_database_SQLiteConnection(JNIEnv* env); 149extern int register_android_database_SQLiteGlobal(JNIEnv* env); 150extern int register_android_database_SQLiteDebug(JNIEnv* env); 151extern int register_android_nio_utils(JNIEnv* env); 152extern int register_android_os_Debug(JNIEnv* env); 153extern int register_android_os_MessageQueue(JNIEnv* env); 154extern int register_android_os_Parcel(JNIEnv* env); 155extern int register_android_os_SELinux(JNIEnv* env); 156extern int register_android_os_SystemProperties(JNIEnv *env); 157extern int register_android_os_SystemClock(JNIEnv* env); 158extern int register_android_os_Trace(JNIEnv* env); 159extern int register_android_os_FileObserver(JNIEnv *env); 160extern int register_android_os_UEventObserver(JNIEnv* env); 161extern int register_android_os_MemoryFile(JNIEnv* env); 162extern int register_android_net_LocalSocketImpl(JNIEnv* env); 163extern int register_android_net_NetworkUtils(JNIEnv* env); 164extern int register_android_net_TrafficStats(JNIEnv* env); 165extern int register_android_text_AndroidCharacter(JNIEnv *env); 166extern int register_android_text_StaticLayout(JNIEnv *env); 167extern int register_android_text_AndroidBidi(JNIEnv *env); 168extern int register_android_opengl_classes(JNIEnv *env); 169extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env); 170extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env); 171extern int register_android_backup_BackupDataInput(JNIEnv *env); 172extern int register_android_backup_BackupDataOutput(JNIEnv *env); 173extern int register_android_backup_FileBackupHelperBase(JNIEnv *env); 174extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env); 175extern int register_android_app_backup_FullBackup(JNIEnv *env); 176extern int register_android_app_ActivityThread(JNIEnv *env); 177extern int register_android_app_NativeActivity(JNIEnv *env); 178extern int register_android_media_RemoteDisplay(JNIEnv *env); 179extern int register_android_view_InputChannel(JNIEnv* env); 180extern int register_android_view_InputDevice(JNIEnv* env); 181extern int register_android_view_InputEventReceiver(JNIEnv* env); 182extern int register_android_view_InputEventSender(JNIEnv* env); 183extern int register_android_view_InputQueue(JNIEnv* env); 184extern int register_android_view_KeyCharacterMap(JNIEnv *env); 185extern int register_android_view_KeyEvent(JNIEnv* env); 186extern int register_android_view_MotionEvent(JNIEnv* env); 187extern int register_android_view_PointerIcon(JNIEnv* env); 188extern int register_android_view_VelocityTracker(JNIEnv* env); 189extern int register_android_content_res_ObbScanner(JNIEnv* env); 190extern int register_android_content_res_Configuration(JNIEnv* env); 191extern int register_android_animation_PropertyValuesHolder(JNIEnv *env); 192extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env); 193extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env); 194extern int register_com_android_internal_os_Zygote(JNIEnv *env); 195extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env); 196 197static AndroidRuntime* gCurRuntime = NULL; 198 199/* 200 * Code written in the Java Programming Language calls here from main(). 201 */ 202static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz) 203{ 204 gCurRuntime->onStarted(); 205} 206 207static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz) 208{ 209 gCurRuntime->onZygoteInit(); 210} 211 212static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env, 213 jobject clazz, jboolean exitWithoutCleanup) 214{ 215 gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup); 216} 217 218/* 219 * JNI registration. 220 */ 221static const JNINativeMethod gMethods[] = { 222 { "nativeFinishInit", "()V", 223 (void*) com_android_internal_os_RuntimeInit_nativeFinishInit }, 224 { "nativeZygoteInit", "()V", 225 (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit }, 226 { "nativeSetExitWithoutCleanup", "(Z)V", 227 (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup }, 228}; 229 230int register_com_android_internal_os_RuntimeInit(JNIEnv* env) 231{ 232 return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit", 233 gMethods, NELEM(gMethods)); 234} 235 236// ---------------------------------------------------------------------- 237 238/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL; 239 240AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) : 241 mExitWithoutCleanup(false), 242 mArgBlockStart(argBlockStart), 243 mArgBlockLength(argBlockLength) 244{ 245 SkGraphics::Init(); 246 // There is also a global font cache, but its budget is specified by 247 // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT. 248 249 // Pre-allocate enough space to hold a fair number of options. 250 mOptions.setCapacity(20); 251 252 assert(gCurRuntime == NULL); // one per process 253 gCurRuntime = this; 254} 255 256AndroidRuntime::~AndroidRuntime() 257{ 258 SkGraphics::Term(); 259} 260 261/* 262 * Register native methods using JNI. 263 */ 264/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env, 265 const char* className, const JNINativeMethod* gMethods, int numMethods) 266{ 267 return jniRegisterNativeMethods(env, className, gMethods, numMethods); 268} 269 270void AndroidRuntime::setArgv0(const char* argv0) { 271 memset(mArgBlockStart, 0, mArgBlockLength); 272 strlcpy(mArgBlockStart, argv0, mArgBlockLength); 273} 274 275status_t AndroidRuntime::callMain(const String8& className, jclass clazz, 276 const Vector<String8>& args) 277{ 278 JNIEnv* env; 279 jmethodID methodId; 280 281 ALOGD("Calling main entry %s", className.string()); 282 283 env = getJNIEnv(); 284 if (clazz == NULL || env == NULL) { 285 return UNKNOWN_ERROR; 286 } 287 288 methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V"); 289 if (methodId == NULL) { 290 ALOGE("ERROR: could not find method %s.main(String[])\n", className.string()); 291 return UNKNOWN_ERROR; 292 } 293 294 /* 295 * We want to call main() with a String array with our arguments in it. 296 * Create an array and populate it. 297 */ 298 jclass stringClass; 299 jobjectArray strArray; 300 301 const size_t numArgs = args.size(); 302 stringClass = env->FindClass("java/lang/String"); 303 strArray = env->NewObjectArray(numArgs, stringClass, NULL); 304 305 for (size_t i = 0; i < numArgs; i++) { 306 jstring argStr = env->NewStringUTF(args[i].string()); 307 env->SetObjectArrayElement(strArray, i, argStr); 308 } 309 310 env->CallStaticVoidMethod(clazz, methodId, strArray); 311 return NO_ERROR; 312} 313 314/* 315 * The VM calls this through the "exit" hook. 316 */ 317static void runtime_exit(int code) 318{ 319 gCurRuntime->exit(code); 320} 321 322/* 323 * The VM calls this through the "vfprintf" hook. 324 * 325 * We ignore "fp" and just write the results to the log file. 326 */ 327static void runtime_vfprintf(FILE* fp, const char* format, va_list ap) 328{ 329 LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap); 330} 331 332/** 333 * The VM calls this when mutex contention debugging is enabled to 334 * determine whether or not the blocked thread was a "sensitive thread" 335 * for user responsiveness/smoothess. 336 * 337 * Our policy for this is whether or not we're tracing any StrictMode 338 * events on this thread (which we might've inherited via Binder calls 339 * into us) 340 */ 341static bool runtime_isSensitiveThread() { 342 IPCThreadState* state = IPCThreadState::selfOrNull(); 343 return state && state->getStrictModePolicy() != 0; 344} 345 346static int hasDir(const char* dir) 347{ 348 struct stat s; 349 int res = stat(dir, &s); 350 if (res == 0) { 351 return S_ISDIR(s.st_mode); 352 } 353 return 0; 354} 355 356static bool hasFile(const char* file) { 357 struct stat s; 358 int res = stat(file, &s); 359 if (res == 0) { 360 return S_ISREG(s.st_mode); 361 } 362 return false; 363} 364 365// Convenience wrapper over the property API that returns an 366// std::string. 367std::string getProperty(const char* key, const char* defaultValue) { 368 std::vector<char> temp(PROPERTY_VALUE_MAX); 369 const int len = property_get(key, &temp[0], defaultValue); 370 if (len < 0) { 371 return ""; 372 } 373 return std::string(&temp[0], len); 374} 375 376/* 377 * Read the persistent locale. Inspects the following system properties 378 * (in order) and returns the first non-empty property in the list : 379 * 380 * (1) persist.sys.locale 381 * (2) persist.sys.language/country/localevar (country and localevar are 382 * inspected iff. language is non-empty. 383 * (3) ro.product.locale 384 * (4) ro.product.locale.language/region 385 * 386 * Note that we need to inspect persist.sys.language/country/localevar to 387 * preserve language settings for devices that are upgrading from Lollipop 388 * to M. The same goes for ro.product.locale.language/region as well. 389 */ 390const std::string readLocale() 391{ 392 const std::string locale = getProperty("persist.sys.locale", ""); 393 if (!locale.empty()) { 394 return locale; 395 } 396 397 const std::string language = getProperty("persist.sys.language", ""); 398 if (!language.empty()) { 399 const std::string country = getProperty("persist.sys.country", ""); 400 const std::string variant = getProperty("persist.sys.localevar", ""); 401 402 std::string out = language; 403 if (!country.empty()) { 404 out = out + "-" + country; 405 } 406 407 if (!variant.empty()) { 408 out = out + "-" + variant; 409 } 410 411 return out; 412 } 413 414 const std::string productLocale = getProperty("ro.product.locale", ""); 415 if (!productLocale.empty()) { 416 return productLocale; 417 } 418 419 // If persist.sys.locale and ro.product.locale are missing, 420 // construct a locale value from the individual locale components. 421 const std::string productLanguage = getProperty("ro.product.locale.language", "en"); 422 const std::string productRegion = getProperty("ro.product.locale.region", "US"); 423 424 return productLanguage + "-" + productRegion; 425} 426 427void AndroidRuntime::addOption(const char* optionString, void* extraInfo) 428{ 429 JavaVMOption opt; 430 opt.optionString = optionString; 431 opt.extraInfo = extraInfo; 432 mOptions.add(opt); 433} 434 435/* 436 * Parse a property containing space-separated options that should be 437 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap". 438 * 439 * This will cut up "extraOptsBuf" as we chop it into individual options. 440 * 441 * If "quotingArg" is non-null, it is passed before each extra option in mOptions. 442 * 443 * Adds the strings, if any, to mOptions. 444 */ 445void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg) 446{ 447 char* start = extraOptsBuf; 448 char* end = NULL; 449 while (*start != '\0') { 450 while (*start == ' ') /* skip leading whitespace */ 451 start++; 452 if (*start == '\0') /* was trailing ws, bail */ 453 break; 454 455 end = start+1; 456 while (*end != ' ' && *end != '\0') /* find end of token */ 457 end++; 458 if (*end == ' ') 459 *end++ = '\0'; /* mark end, advance to indicate more */ 460 461 if (quotingArg != NULL) { 462 addOption(quotingArg); 463 } 464 addOption(start); 465 start = end; 466 } 467} 468 469/* 470 * Reads a "property" into "buffer" with a default of "defaultArg". If 471 * the property is non-empty, it is treated as a runtime option such 472 * as "-Xmx32m". 473 * 474 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 475 * 476 * If an argument is found, it is added to mOptions. 477 * 478 * If an option is found, it is added to mOptions and true is 479 * returned. Otherwise false is returned. 480 */ 481bool AndroidRuntime::parseRuntimeOption(const char* property, 482 char* buffer, 483 const char* runtimeArg, 484 const char* defaultArg) 485{ 486 strcpy(buffer, runtimeArg); 487 size_t runtimeArgLen = strlen(runtimeArg); 488 property_get(property, buffer+runtimeArgLen, defaultArg); 489 if (buffer[runtimeArgLen] == '\0') { 490 return false; 491 } 492 addOption(buffer); 493 return true; 494} 495 496/* 497 * Reads a "property" into "buffer". If the property is non-empty, it 498 * is treated as a dex2oat compiler option that should be 499 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none". 500 * 501 * The "compilerArg" is a prefix for the option such as "--compiler-filter=". 502 * 503 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 504 * 505 * If an option is found, it is added to mOptions and true is 506 * returned. Otherwise false is returned. 507 */ 508bool AndroidRuntime::parseCompilerOption(const char* property, 509 char* buffer, 510 const char* compilerArg, 511 const char* quotingArg) 512{ 513 strcpy(buffer, compilerArg); 514 size_t compilerArgLen = strlen(compilerArg); 515 property_get(property, buffer+compilerArgLen, ""); 516 if (buffer[compilerArgLen] == '\0') { 517 return false; 518 } 519 addOption(quotingArg); 520 addOption(buffer); 521 return true; 522} 523 524/* 525 * Reads a "property" into "buffer". If the property is non-empty, it 526 * is treated as a dex2oat compiler runtime option that should be 527 * passed as a quoted option, e.g. "-Ximage-compiler-option 528 * --runtime-arg -Ximage-compiler-option -Xmx32m". 529 * 530 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 531 * 532 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 533 * 534 * If an option is found, it is added to mOptions and true is 535 * returned. Otherwise false is returned. 536 */ 537bool AndroidRuntime::parseCompilerRuntimeOption(const char* property, 538 char* buffer, 539 const char* runtimeArg, 540 const char* quotingArg) 541{ 542 strcpy(buffer, runtimeArg); 543 size_t runtimeArgLen = strlen(runtimeArg); 544 property_get(property, buffer+runtimeArgLen, ""); 545 if (buffer[runtimeArgLen] == '\0') { 546 return false; 547 } 548 addOption(quotingArg); 549 addOption("--runtime-arg"); 550 addOption(quotingArg); 551 addOption(buffer); 552 return true; 553} 554 555/* 556 * Start the Dalvik Virtual Machine. 557 * 558 * Various arguments, most determined by system properties, are passed in. 559 * The "mOptions" vector is updated. 560 * 561 * CAUTION: when adding options in here, be careful not to put the 562 * char buffer inside a nested scope. Adding the buffer to the 563 * options using mOptions.add() does not copy the buffer, so if the 564 * buffer goes out of scope the option may be overwritten. It's best 565 * to put the buffer at the top of the function so that it is more 566 * unlikely that someone will surround it in a scope at a later time 567 * and thus introduce a bug. 568 * 569 * Returns 0 on success. 570 */ 571int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote) 572{ 573 JavaVMInitArgs initArgs; 574 char propBuf[PROPERTY_VALUE_MAX]; 575 char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX]; 576 char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX]; 577 char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 578 char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 579 char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX]; 580 char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX]; 581 char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX]; 582 char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX]; 583 char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX]; 584 char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX]; 585 char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX]; 586 char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX]; 587 char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX]; 588 char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX]; 589 char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX]; 590 char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 591 char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 592 char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 593 char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 594 char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 595 char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 596 char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 597 char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 598 char dex2oat_isa_variant_key[PROPERTY_KEY_MAX]; 599 char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX]; 600 char dex2oat_isa_features_key[PROPERTY_KEY_MAX]; 601 char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX]; 602 char dex2oatFlagsBuf[PROPERTY_VALUE_MAX]; 603 char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX]; 604 char extraOptsBuf[PROPERTY_VALUE_MAX]; 605 char voldDecryptBuf[PROPERTY_VALUE_MAX]; 606 enum { 607 kEMDefault, 608 kEMIntPortable, 609 kEMIntFast, 610 kEMJitCompiler, 611 } executionMode = kEMDefault; 612 char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX]; 613 char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX]; 614 char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX]; 615 char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX]; 616 char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX]; 617 char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX]; 618 char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX]; 619 620 bool checkJni = false; 621 property_get("dalvik.vm.checkjni", propBuf, ""); 622 if (strcmp(propBuf, "true") == 0) { 623 checkJni = true; 624 } else if (strcmp(propBuf, "false") != 0) { 625 /* property is neither true nor false; fall back on kernel parameter */ 626 property_get("ro.kernel.android.checkjni", propBuf, ""); 627 if (propBuf[0] == '1') { 628 checkJni = true; 629 } 630 } 631 ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF"); 632 if (checkJni) { 633 /* extended JNI checking */ 634 addOption("-Xcheck:jni"); 635 636 /* with -Xcheck:jni, this provides a JNI function call trace */ 637 //addOption("-verbose:jni"); 638 } 639 640 property_get("dalvik.vm.execution-mode", propBuf, ""); 641 if (strcmp(propBuf, "int:portable") == 0) { 642 executionMode = kEMIntPortable; 643 } else if (strcmp(propBuf, "int:fast") == 0) { 644 executionMode = kEMIntFast; 645 } else if (strcmp(propBuf, "int:jit") == 0) { 646 executionMode = kEMJitCompiler; 647 } 648 649 parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:"); 650 651 strcpy(jniOptsBuf, "-Xjniopts:"); 652 if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) { 653 ALOGI("JNI options: '%s'\n", jniOptsBuf); 654 } 655 656 /* route exit() to our handler */ 657 addOption("exit", (void*) runtime_exit); 658 659 /* route fprintf() to our handler */ 660 addOption("vfprintf", (void*) runtime_vfprintf); 661 662 /* register the framework-specific "is sensitive thread" hook */ 663 addOption("sensitiveThread", (void*) runtime_isSensitiveThread); 664 665 /* enable verbose; standard options are { jni, gc, class } */ 666 //addOption("-verbose:jni"); 667 addOption("-verbose:gc"); 668 //addOption("-verbose:class"); 669 670 /* 671 * The default starting and maximum size of the heap. Larger 672 * values should be specified in a product property override. 673 */ 674 parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m"); 675 parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m"); 676 677 parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit="); 678 parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree="); 679 parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree="); 680 parseRuntimeOption("dalvik.vm.heaptargetutilization", 681 heaptargetutilizationOptsBuf, 682 "-XX:HeapTargetUtilization="); 683 684 /* 685 * JIT related options. 686 */ 687 parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:"); 688 parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:"); 689 parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:"); 690 parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:"); 691 692 property_get("ro.config.low_ram", propBuf, ""); 693 if (strcmp(propBuf, "true") == 0) { 694 addOption("-XX:LowMemoryMode"); 695 } 696 697 parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:"); 698 parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC="); 699 700 /* 701 * Enable debugging only for apps forked from zygote. 702 * Set suspend=y to pause during VM init and use android ADB transport. 703 */ 704 if (zygote) { 705 addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y"); 706 } 707 708 parseRuntimeOption("dalvik.vm.lockprof.threshold", 709 lockProfThresholdBuf, 710 "-Xlockprofthreshold:"); 711 712 if (executionMode == kEMIntPortable) { 713 addOption("-Xint:portable"); 714 } else if (executionMode == kEMIntFast) { 715 addOption("-Xint:fast"); 716 } else if (executionMode == kEMJitCompiler) { 717 addOption("-Xint:jit"); 718 } 719 720 // If we are booting without the real /data, don't spend time compiling. 721 property_get("vold.decrypt", voldDecryptBuf, ""); 722 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || 723 (strcmp(voldDecryptBuf, "1") == 0)); 724 725 // Extra options for boot.art/boot.oat image generation. 726 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, 727 "-Xms", "-Ximage-compiler-option"); 728 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, 729 "-Xmx", "-Ximage-compiler-option"); 730 if (skip_compilation) { 731 addOption("-Ximage-compiler-option"); 732 addOption("--compiler-filter=verify-none"); 733 } else { 734 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, 735 "--compiler-filter=", "-Ximage-compiler-option"); 736 } 737 738 // Make sure there is a preloaded-classes file. 739 if (!hasFile("/system/etc/preloaded-classes")) { 740 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n", 741 strerror(errno)); 742 return -1; 743 } 744 addOption("-Ximage-compiler-option"); 745 addOption("--image-classes=/system/etc/preloaded-classes"); 746 747 // If there is a compiled-classes file, push it. 748 if (hasFile("/system/etc/compiled-classes")) { 749 addOption("-Ximage-compiler-option"); 750 addOption("--compiled-classes=/system/etc/compiled-classes"); 751 } 752 753 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); 754 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); 755 756 // Extra options for DexClassLoader. 757 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, 758 "-Xms", "-Xcompiler-option"); 759 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, 760 "-Xmx", "-Xcompiler-option"); 761 if (skip_compilation) { 762 addOption("-Xcompiler-option"); 763 addOption("--compiler-filter=verify-none"); 764 765 // We skip compilation when a minimal runtime is brought up for decryption. In that case 766 // /data is temporarily backed by a tmpfs, which is usually small. 767 // If the system image contains prebuilts, they will be relocated into the tmpfs. In this 768 // specific situation it is acceptable to *not* relocate and run out of the prebuilts 769 // directly instead. 770 addOption("--runtime-arg"); 771 addOption("-Xnorelocate"); 772 } else { 773 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, 774 "--compiler-filter=", "-Xcompiler-option"); 775 } 776 parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option"); 777 parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j", 778 "-Ximage-compiler-option"); 779 780 // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to 781 // pass the instruction-set-features/variant as an image-compiler-option. 782 // TODO: Find a better way for the instruction-set. 783#if defined(__arm__) 784 constexpr const char* instruction_set = "arm"; 785#elif defined(__aarch64__) 786 constexpr const char* instruction_set = "arm64"; 787#elif defined(__mips__) && !defined(__LP64__) 788 constexpr const char* instruction_set = "mips"; 789#elif defined(__mips__) && defined(__LP64__) 790 constexpr const char* instruction_set = "mips64"; 791#elif defined(__i386__) 792 constexpr const char* instruction_set = "x86"; 793#elif defined(__x86_64__) 794 constexpr const char* instruction_set = "x86_64"; 795#else 796 constexpr const char* instruction_set = "unknown"; 797#endif 798 // Note: it is OK to reuse the buffer, as the values are exactly the same between 799 // * compiler-option, used for runtime compilation (DexClassLoader) 800 // * image-compiler-option, used for boot-image compilation on device 801 802 // Copy the variant. 803 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set); 804 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 805 "--instruction-set-variant=", "-Ximage-compiler-option"); 806 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 807 "--instruction-set-variant=", "-Xcompiler-option"); 808 // Copy the features. 809 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set); 810 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 811 "--instruction-set-features=", "-Ximage-compiler-option"); 812 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 813 "--instruction-set-features=", "-Xcompiler-option"); 814 815 816 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); 817 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); 818 819 /* extra options; parse this late so it overrides others */ 820 property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); 821 parseExtraOpts(extraOptsBuf, NULL); 822 823 /* Set the properties for locale */ 824 { 825 strcpy(localeOption, "-Duser.locale="); 826 const std::string locale = readLocale(); 827 strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX); 828 addOption(localeOption); 829 } 830 831 // Trace files are stored in /data/misc/trace which is writable only in debug mode. 832 property_get("ro.debuggable", propBuf, "0"); 833 if (strcmp(propBuf, "1") == 0) { 834 property_get("dalvik.vm.method-trace", propBuf, "false"); 835 if (strcmp(propBuf, "true") == 0) { 836 addOption("-Xmethod-trace"); 837 parseRuntimeOption("dalvik.vm.method-trace-file", 838 methodTraceFileBuf, 839 "-Xmethod-trace-file:"); 840 parseRuntimeOption("dalvik.vm.method-trace-file-siz", 841 methodTraceFileSizeBuf, 842 "-Xmethod-trace-file-size:"); 843 property_get("dalvik.vm.method-trace-stream", propBuf, "false"); 844 if (strcmp(propBuf, "true") == 0) { 845 addOption("-Xmethod-trace-stream"); 846 } 847 } 848 } 849 850 // Native bridge library. "0" means that native bridge is disabled. 851 property_get("ro.dalvik.vm.native.bridge", propBuf, ""); 852 if (propBuf[0] == '\0') { 853 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); 854 } else if (strcmp(propBuf, "0") != 0) { 855 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, 856 "-XX:NativeBridge=%s", propBuf); 857 addOption(nativeBridgeLibrary); 858 } 859 860#if defined(__LP64__) 861 const char* cpu_abilist_property_name = "ro.product.cpu.abilist64"; 862#else 863 const char* cpu_abilist_property_name = "ro.product.cpu.abilist32"; 864#endif // defined(__LP64__) 865 property_get(cpu_abilist_property_name, propBuf, ""); 866 if (propBuf[0] == '\0') { 867 ALOGE("%s is not expected to be empty", cpu_abilist_property_name); 868 return -1; 869 } 870 snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf); 871 addOption(cpuAbiListBuf); 872 873 // Dalvik-cache pruning counter. 874 parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf, 875 "-Xzygote-max-boot-retry="); 876 877 /* 878 * When running with debug.generate-debug-info, add --generate-debug-info to 879 * the compiler options so that the boot image, if it is compiled on device, 880 * will include native debugging information. 881 */ 882 property_get("debug.generate-debug-info", propBuf, ""); 883 if (strcmp(propBuf, "true") == 0) { 884 addOption("-Xcompiler-option"); 885 addOption("--generate-debug-info"); 886 addOption("-Ximage-compiler-option"); 887 addOption("--generate-debug-info"); 888 } 889 890 /* 891 * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will 892 * contain the fingerprint and can be parsed. 893 */ 894 parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:"); 895 896 initArgs.version = JNI_VERSION_1_4; 897 initArgs.options = mOptions.editArray(); 898 initArgs.nOptions = mOptions.size(); 899 initArgs.ignoreUnrecognized = JNI_FALSE; 900 901 /* 902 * Initialize the VM. 903 * 904 * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. 905 * If this call succeeds, the VM is ready, and we can start issuing 906 * JNI calls. 907 */ 908 if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { 909 ALOGE("JNI_CreateJavaVM failed\n"); 910 return -1; 911 } 912 913 return 0; 914} 915 916char* AndroidRuntime::toSlashClassName(const char* className) 917{ 918 char* result = strdup(className); 919 for (char* cp = result; *cp != '\0'; cp++) { 920 if (*cp == '.') { 921 *cp = '/'; 922 } 923 } 924 return result; 925} 926 927/** Create a Java string from an ASCII or Latin-1 string */ 928jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { 929 if (!bytes) return NULL; 930 int length = strlen(bytes); 931 jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); 932 if (!buffer) return NULL; 933 jchar* chp = buffer; 934 for (int i = 0; i < length; i++) { 935 *chp++ = *bytes++; 936 } 937 return env->NewString(buffer, length); 938} 939 940 941/* 942 * Start the Android runtime. This involves starting the virtual machine 943 * and calling the "static void main(String[] args)" method in the class 944 * named by "className". 945 * 946 * Passes the main function two arguments, the class name and the specified 947 * options string. 948 */ 949void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote) 950{ 951 ALOGD(">>>>>> START %s uid %d <<<<<<\n", 952 className != NULL ? className : "(unknown)", getuid()); 953 954 static const String8 startSystemServer("start-system-server"); 955 956 /* 957 * 'startSystemServer == true' means runtime is obsolete and not run from 958 * init.rc anymore, so we print out the boot start event here. 959 */ 960 for (size_t i = 0; i < options.size(); ++i) { 961 if (options[i] == startSystemServer) { 962 /* track our progress through the boot sequence */ 963 const int LOG_BOOT_PROGRESS_START = 3000; 964 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); 965 } 966 } 967 968 const char* rootDir = getenv("ANDROID_ROOT"); 969 if (rootDir == NULL) { 970 rootDir = "/system"; 971 if (!hasDir("/system")) { 972 LOG_FATAL("No root directory specified, and /android does not exist."); 973 return; 974 } 975 setenv("ANDROID_ROOT", rootDir, 1); 976 } 977 978 //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); 979 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); 980 981 /* start the virtual machine */ 982 JniInvocation jni_invocation; 983 jni_invocation.Init(NULL); 984 JNIEnv* env; 985 if (startVm(&mJavaVM, &env, zygote) != 0) { 986 return; 987 } 988 onVmCreated(env); 989 990 /* 991 * Register android functions. 992 */ 993 if (startReg(env) < 0) { 994 ALOGE("Unable to register all android natives\n"); 995 return; 996 } 997 998 /* 999 * We want to call main() with a String array with arguments in it. 1000 * At present we have two arguments, the class name and an option string. 1001 * Create an array to hold them. 1002 */ 1003 jclass stringClass; 1004 jobjectArray strArray; 1005 jstring classNameStr; 1006 1007 stringClass = env->FindClass("java/lang/String"); 1008 assert(stringClass != NULL); 1009 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); 1010 assert(strArray != NULL); 1011 classNameStr = env->NewStringUTF(className); 1012 assert(classNameStr != NULL); 1013 env->SetObjectArrayElement(strArray, 0, classNameStr); 1014 1015 for (size_t i = 0; i < options.size(); ++i) { 1016 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); 1017 assert(optionsStr != NULL); 1018 env->SetObjectArrayElement(strArray, i + 1, optionsStr); 1019 } 1020 1021 /* 1022 * Start VM. This thread becomes the main thread of the VM, and will 1023 * not return until the VM exits. 1024 */ 1025 char* slashClassName = toSlashClassName(className); 1026 jclass startClass = env->FindClass(slashClassName); 1027 if (startClass == NULL) { 1028 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); 1029 /* keep going */ 1030 } else { 1031 jmethodID startMeth = env->GetStaticMethodID(startClass, "main", 1032 "([Ljava/lang/String;)V"); 1033 if (startMeth == NULL) { 1034 ALOGE("JavaVM unable to find main() in '%s'\n", className); 1035 /* keep going */ 1036 } else { 1037 env->CallStaticVoidMethod(startClass, startMeth, strArray); 1038 1039#if 0 1040 if (env->ExceptionCheck()) 1041 threadExitUncaughtException(env); 1042#endif 1043 } 1044 } 1045 free(slashClassName); 1046 1047 ALOGD("Shutting down VM\n"); 1048 if (mJavaVM->DetachCurrentThread() != JNI_OK) 1049 ALOGW("Warning: unable to detach main thread\n"); 1050 if (mJavaVM->DestroyJavaVM() != 0) 1051 ALOGW("Warning: VM did not shut down cleanly\n"); 1052} 1053 1054void AndroidRuntime::exit(int code) 1055{ 1056 if (mExitWithoutCleanup) { 1057 ALOGI("VM exiting with result code %d, cleanup skipped.", code); 1058 ::_exit(code); 1059 } else { 1060 ALOGI("VM exiting with result code %d.", code); 1061 onExit(code); 1062 ::exit(code); 1063 } 1064} 1065 1066void AndroidRuntime::onVmCreated(JNIEnv* env) 1067{ 1068 // If AndroidRuntime had anything to do here, we'd have done it in 'start'. 1069} 1070 1071/* 1072 * Get the JNIEnv pointer for this thread. 1073 * 1074 * Returns NULL if the slot wasn't allocated or populated. 1075 */ 1076/*static*/ JNIEnv* AndroidRuntime::getJNIEnv() 1077{ 1078 JNIEnv* env; 1079 JavaVM* vm = AndroidRuntime::getJavaVM(); 1080 assert(vm != NULL); 1081 1082 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) 1083 return NULL; 1084 return env; 1085} 1086 1087/* 1088 * Makes the current thread visible to the VM. 1089 * 1090 * The JNIEnv pointer returned is only valid for the current thread, and 1091 * thus must be tucked into thread-local storage. 1092 */ 1093static int javaAttachThread(const char* threadName, JNIEnv** pEnv) 1094{ 1095 JavaVMAttachArgs args; 1096 JavaVM* vm; 1097 jint result; 1098 1099 vm = AndroidRuntime::getJavaVM(); 1100 assert(vm != NULL); 1101 1102 args.version = JNI_VERSION_1_4; 1103 args.name = (char*) threadName; 1104 args.group = NULL; 1105 1106 result = vm->AttachCurrentThread(pEnv, (void*) &args); 1107 if (result != JNI_OK) 1108 ALOGI("NOTE: attach of thread '%s' failed\n", threadName); 1109 1110 return result; 1111} 1112 1113/* 1114 * Detach the current thread from the set visible to the VM. 1115 */ 1116static int javaDetachThread(void) 1117{ 1118 JavaVM* vm; 1119 jint result; 1120 1121 vm = AndroidRuntime::getJavaVM(); 1122 assert(vm != NULL); 1123 1124 result = vm->DetachCurrentThread(); 1125 if (result != JNI_OK) 1126 ALOGE("ERROR: thread detach failed\n"); 1127 return result; 1128} 1129 1130/* 1131 * When starting a native thread that will be visible from the VM, we 1132 * bounce through this to get the right attach/detach action. 1133 * Note that this function calls free(args) 1134 */ 1135/*static*/ int AndroidRuntime::javaThreadShell(void* args) { 1136 void* start = ((void**)args)[0]; 1137 void* userData = ((void **)args)[1]; 1138 char* name = (char*) ((void **)args)[2]; // we own this storage 1139 free(args); 1140 JNIEnv* env; 1141 int result; 1142 1143 /* hook us into the VM */ 1144 if (javaAttachThread(name, &env) != JNI_OK) 1145 return -1; 1146 1147 /* start the thread running */ 1148 result = (*(android_thread_func_t)start)(userData); 1149 1150 /* unhook us */ 1151 javaDetachThread(); 1152 free(name); 1153 1154 return result; 1155} 1156 1157/* 1158 * This is invoked from androidCreateThreadEtc() via the callback 1159 * set with androidSetCreateThreadFunc(). 1160 * 1161 * We need to create the new thread in such a way that it gets hooked 1162 * into the VM before it really starts executing. 1163 */ 1164/*static*/ int AndroidRuntime::javaCreateThreadEtc( 1165 android_thread_func_t entryFunction, 1166 void* userData, 1167 const char* threadName, 1168 int32_t threadPriority, 1169 size_t threadStackSize, 1170 android_thread_id_t* threadId) 1171{ 1172 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free 1173 int result; 1174 1175 if (!threadName) 1176 threadName = "unnamed thread"; 1177 1178 args[0] = (void*) entryFunction; 1179 args[1] = userData; 1180 args[2] = (void*) strdup(threadName); // javaThreadShell must free 1181 1182 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, 1183 threadName, threadPriority, threadStackSize, threadId); 1184 return result; 1185} 1186 1187/* 1188 * Create a thread that is visible from the VM. 1189 * 1190 * This is called from elsewhere in the library. 1191 */ 1192/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, 1193 void (*start)(void *), void* arg) 1194{ 1195 android_thread_id_t threadId = 0; 1196 javaCreateThreadEtc((android_thread_func_t) start, arg, name, 1197 ANDROID_PRIORITY_DEFAULT, 0, &threadId); 1198 return threadId; 1199} 1200 1201#if 0 1202static void quickTest(void* arg) 1203{ 1204 const char* str = (const char*) arg; 1205 1206 printf("In quickTest: %s\n", str); 1207} 1208#endif 1209 1210#ifdef NDEBUG 1211 #define REG_JNI(name) { name } 1212 struct RegJNIRec { 1213 int (*mProc)(JNIEnv*); 1214 }; 1215#else 1216 #define REG_JNI(name) { name, #name } 1217 struct RegJNIRec { 1218 int (*mProc)(JNIEnv*); 1219 const char* mName; 1220 }; 1221#endif 1222 1223typedef void (*RegJAMProc)(); 1224 1225static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) 1226{ 1227 for (size_t i = 0; i < count; i++) { 1228 if (array[i].mProc(env) < 0) { 1229#ifndef NDEBUG 1230 ALOGD("----------!!! %s failed to load\n", array[i].mName); 1231#endif 1232 return -1; 1233 } 1234 } 1235 return 0; 1236} 1237 1238static const RegJNIRec gRegJNI[] = { 1239 REG_JNI(register_com_android_internal_os_RuntimeInit), 1240 REG_JNI(register_android_os_SystemClock), 1241 REG_JNI(register_android_util_EventLog), 1242 REG_JNI(register_android_util_Log), 1243 REG_JNI(register_android_util_PathParser), 1244 REG_JNI(register_android_content_AssetManager), 1245 REG_JNI(register_android_content_StringBlock), 1246 REG_JNI(register_android_content_XmlBlock), 1247 REG_JNI(register_android_text_AndroidCharacter), 1248 REG_JNI(register_android_text_StaticLayout), 1249 REG_JNI(register_android_text_AndroidBidi), 1250 REG_JNI(register_android_view_InputDevice), 1251 REG_JNI(register_android_view_KeyCharacterMap), 1252 REG_JNI(register_android_os_Process), 1253 REG_JNI(register_android_os_SystemProperties), 1254 REG_JNI(register_android_os_Binder), 1255 REG_JNI(register_android_os_Parcel), 1256 REG_JNI(register_android_nio_utils), 1257 REG_JNI(register_android_graphics_Graphics), 1258 REG_JNI(register_android_view_DisplayEventReceiver), 1259 REG_JNI(register_android_view_RenderNode), 1260 REG_JNI(register_android_view_RenderNodeAnimator), 1261 REG_JNI(register_android_view_GraphicBuffer), 1262 REG_JNI(register_android_view_DisplayListCanvas), 1263 REG_JNI(register_android_view_HardwareLayer), 1264 REG_JNI(register_android_view_ThreadedRenderer), 1265 REG_JNI(register_android_view_Surface), 1266 REG_JNI(register_android_view_SurfaceControl), 1267 REG_JNI(register_android_view_SurfaceSession), 1268 REG_JNI(register_android_view_TextureView), 1269 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), 1270 REG_JNI(register_com_google_android_gles_jni_EGLImpl), 1271 REG_JNI(register_com_google_android_gles_jni_GLImpl), 1272 REG_JNI(register_android_opengl_jni_EGL14), 1273 REG_JNI(register_android_opengl_jni_EGLExt), 1274 REG_JNI(register_android_opengl_jni_GLES10), 1275 REG_JNI(register_android_opengl_jni_GLES10Ext), 1276 REG_JNI(register_android_opengl_jni_GLES11), 1277 REG_JNI(register_android_opengl_jni_GLES11Ext), 1278 REG_JNI(register_android_opengl_jni_GLES20), 1279 REG_JNI(register_android_opengl_jni_GLES30), 1280 REG_JNI(register_android_opengl_jni_GLES31), 1281 REG_JNI(register_android_opengl_jni_GLES31Ext), 1282 1283 REG_JNI(register_android_graphics_Bitmap), 1284 REG_JNI(register_android_graphics_BitmapFactory), 1285 REG_JNI(register_android_graphics_BitmapRegionDecoder), 1286 REG_JNI(register_android_graphics_Camera), 1287 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), 1288 REG_JNI(register_android_graphics_Canvas), 1289 REG_JNI(register_android_graphics_CanvasProperty), 1290 REG_JNI(register_android_graphics_ColorFilter), 1291 REG_JNI(register_android_graphics_DrawFilter), 1292 REG_JNI(register_android_graphics_FontFamily), 1293 REG_JNI(register_android_graphics_Interpolator), 1294 REG_JNI(register_android_graphics_LayerRasterizer), 1295 REG_JNI(register_android_graphics_MaskFilter), 1296 REG_JNI(register_android_graphics_Matrix), 1297 REG_JNI(register_android_graphics_Movie), 1298 REG_JNI(register_android_graphics_NinePatch), 1299 REG_JNI(register_android_graphics_Paint), 1300 REG_JNI(register_android_graphics_Path), 1301 REG_JNI(register_android_graphics_PathMeasure), 1302 REG_JNI(register_android_graphics_PathEffect), 1303 REG_JNI(register_android_graphics_Picture), 1304 REG_JNI(register_android_graphics_PorterDuff), 1305 REG_JNI(register_android_graphics_Rasterizer), 1306 REG_JNI(register_android_graphics_Region), 1307 REG_JNI(register_android_graphics_Shader), 1308 REG_JNI(register_android_graphics_SurfaceTexture), 1309 REG_JNI(register_android_graphics_Typeface), 1310 REG_JNI(register_android_graphics_Xfermode), 1311 REG_JNI(register_android_graphics_YuvImage), 1312 REG_JNI(register_android_graphics_pdf_PdfDocument), 1313 REG_JNI(register_android_graphics_pdf_PdfEditor), 1314 REG_JNI(register_android_graphics_pdf_PdfRenderer), 1315 1316 REG_JNI(register_android_database_CursorWindow), 1317 REG_JNI(register_android_database_SQLiteConnection), 1318 REG_JNI(register_android_database_SQLiteGlobal), 1319 REG_JNI(register_android_database_SQLiteDebug), 1320 REG_JNI(register_android_os_Debug), 1321 REG_JNI(register_android_os_FileObserver), 1322 REG_JNI(register_android_os_MessageQueue), 1323 REG_JNI(register_android_os_SELinux), 1324 REG_JNI(register_android_os_Trace), 1325 REG_JNI(register_android_os_UEventObserver), 1326 REG_JNI(register_android_net_LocalSocketImpl), 1327 REG_JNI(register_android_net_NetworkUtils), 1328 REG_JNI(register_android_net_TrafficStats), 1329 REG_JNI(register_android_os_MemoryFile), 1330 REG_JNI(register_com_android_internal_os_Zygote), 1331 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), 1332 REG_JNI(register_android_hardware_Camera), 1333 REG_JNI(register_android_hardware_camera2_CameraMetadata), 1334 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), 1335 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), 1336 REG_JNI(register_android_hardware_camera2_DngCreator), 1337 REG_JNI(register_android_hardware_Radio), 1338 REG_JNI(register_android_hardware_SensorManager), 1339 REG_JNI(register_android_hardware_SerialPort), 1340 REG_JNI(register_android_hardware_SoundTrigger), 1341 REG_JNI(register_android_hardware_UsbDevice), 1342 REG_JNI(register_android_hardware_UsbDeviceConnection), 1343 REG_JNI(register_android_hardware_UsbRequest), 1344 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), 1345 REG_JNI(register_android_media_AudioRecord), 1346 REG_JNI(register_android_media_AudioSystem), 1347 REG_JNI(register_android_media_AudioTrack), 1348 REG_JNI(register_android_media_JetPlayer), 1349 REG_JNI(register_android_media_RemoteDisplay), 1350 REG_JNI(register_android_media_ToneGenerator), 1351 1352 REG_JNI(register_android_opengl_classes), 1353 REG_JNI(register_android_server_NetworkManagementSocketTagger), 1354 REG_JNI(register_android_ddm_DdmHandleNativeHeap), 1355 REG_JNI(register_android_backup_BackupDataInput), 1356 REG_JNI(register_android_backup_BackupDataOutput), 1357 REG_JNI(register_android_backup_FileBackupHelperBase), 1358 REG_JNI(register_android_backup_BackupHelperDispatcher), 1359 REG_JNI(register_android_app_backup_FullBackup), 1360 REG_JNI(register_android_app_ActivityThread), 1361 REG_JNI(register_android_app_NativeActivity), 1362 REG_JNI(register_android_view_InputChannel), 1363 REG_JNI(register_android_view_InputEventReceiver), 1364 REG_JNI(register_android_view_InputEventSender), 1365 REG_JNI(register_android_view_InputQueue), 1366 REG_JNI(register_android_view_KeyEvent), 1367 REG_JNI(register_android_view_MotionEvent), 1368 REG_JNI(register_android_view_PointerIcon), 1369 REG_JNI(register_android_view_VelocityTracker), 1370 1371 REG_JNI(register_android_content_res_ObbScanner), 1372 REG_JNI(register_android_content_res_Configuration), 1373 1374 REG_JNI(register_android_animation_PropertyValuesHolder), 1375 REG_JNI(register_com_android_internal_content_NativeLibraryHelper), 1376 REG_JNI(register_com_android_internal_net_NetworkStatsFactory), 1377}; 1378 1379/* 1380 * Register android native functions with the VM. 1381 */ 1382/*static*/ int AndroidRuntime::startReg(JNIEnv* env) 1383{ 1384 ATRACE_NAME("RegisterAndroidNatives"); 1385 /* 1386 * This hook causes all future threads created in this process to be 1387 * attached to the JavaVM. (This needs to go away in favor of JNI 1388 * Attach calls.) 1389 */ 1390 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); 1391 1392 ALOGV("--- registering native functions ---\n"); 1393 1394 /* 1395 * Every "register" function calls one or more things that return 1396 * a local reference (e.g. FindClass). Because we haven't really 1397 * started the VM yet, they're all getting stored in the base frame 1398 * and never released. Use Push/Pop to manage the storage. 1399 */ 1400 env->PushLocalFrame(200); 1401 1402 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { 1403 env->PopLocalFrame(NULL); 1404 return -1; 1405 } 1406 env->PopLocalFrame(NULL); 1407 1408 //createJavaThread("fubar", quickTest, (void*) "hello"); 1409 1410 return 0; 1411} 1412 1413AndroidRuntime* AndroidRuntime::getRuntime() 1414{ 1415 return gCurRuntime; 1416} 1417 1418/** 1419 * Used by surface flinger's DdmConnection to register native methods from 1420 * the framework. 1421 */ 1422extern "C" jint registerFrameworkNatives(JNIEnv* env) { 1423 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1424} 1425} // namespace android 1426