AndroidRuntime.cpp revision 4bbc2931263b232fba61807fca00e127573eff42
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define ATRACE_TAG ATRACE_TAG_DALVIK 18#define LOG_TAG "AndroidRuntime" 19//#define LOG_NDEBUG 0 20 21#include <android_runtime/AndroidRuntime.h> 22#include <binder/IBinder.h> 23#include <binder/IPCThreadState.h> 24#include <binder/IServiceManager.h> 25#include <utils/Log.h> 26#include <utils/misc.h> 27#include <utils/Trace.h> 28#include <binder/Parcel.h> 29#include <utils/threads.h> 30#include <cutils/properties.h> 31 32#include <SkGraphics.h> 33#include <SkImageDecoder.h> 34 35#include "jni.h" 36#include "JNIHelp.h" 37#include "JniInvocation.h" 38#include "android_util_Binder.h" 39 40#include <stdio.h> 41#include <signal.h> 42#include <sys/stat.h> 43#include <sys/types.h> 44#include <signal.h> 45#include <dirent.h> 46#include <assert.h> 47 48#include <string> 49#include <vector> 50 51 52using namespace android; 53 54extern int register_android_os_Binder(JNIEnv* env); 55extern int register_android_os_Process(JNIEnv* env); 56extern int register_android_graphics_Bitmap(JNIEnv*); 57extern int register_android_graphics_BitmapFactory(JNIEnv*); 58extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*); 59extern int register_android_graphics_Camera(JNIEnv* env); 60extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env); 61extern int register_android_graphics_Graphics(JNIEnv* env); 62extern int register_android_graphics_Interpolator(JNIEnv* env); 63extern int register_android_graphics_MaskFilter(JNIEnv* env); 64extern int register_android_graphics_Movie(JNIEnv* env); 65extern int register_android_graphics_NinePatch(JNIEnv*); 66extern int register_android_graphics_PathEffect(JNIEnv* env); 67extern int register_android_graphics_Shader(JNIEnv* env); 68extern int register_android_graphics_Typeface(JNIEnv* env); 69extern int register_android_graphics_YuvImage(JNIEnv* env); 70 71extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env); 72extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env); 73extern int register_android_opengl_jni_EGL14(JNIEnv* env); 74extern int register_android_opengl_jni_EGLExt(JNIEnv* env); 75extern int register_android_opengl_jni_GLES10(JNIEnv* env); 76extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env); 77extern int register_android_opengl_jni_GLES11(JNIEnv* env); 78extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env); 79extern int register_android_opengl_jni_GLES20(JNIEnv* env); 80extern int register_android_opengl_jni_GLES30(JNIEnv* env); 81extern int register_android_opengl_jni_GLES31(JNIEnv* env); 82extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env); 83extern int register_android_opengl_jni_GLES32(JNIEnv* env); 84 85extern int register_android_hardware_Camera(JNIEnv *env); 86extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env); 87extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env); 88extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env); 89extern int register_android_hardware_camera2_DngCreator(JNIEnv *env); 90extern int register_android_hardware_Radio(JNIEnv *env); 91extern int register_android_hardware_SensorManager(JNIEnv *env); 92extern int register_android_hardware_SerialPort(JNIEnv *env); 93extern int register_android_hardware_SoundTrigger(JNIEnv *env); 94extern int register_android_hardware_UsbDevice(JNIEnv *env); 95extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env); 96extern int register_android_hardware_UsbRequest(JNIEnv *env); 97extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env); 98 99extern int register_android_media_AudioRecord(JNIEnv *env); 100extern int register_android_media_AudioSystem(JNIEnv *env); 101extern int register_android_media_AudioTrack(JNIEnv *env); 102extern int register_android_media_JetPlayer(JNIEnv *env); 103extern int register_android_media_ToneGenerator(JNIEnv *env); 104 105namespace android { 106 107/* 108 * JNI-based registration functions. Note these are properly contained in 109 * namespace android. 110 */ 111extern int register_android_content_AssetManager(JNIEnv* env); 112extern int register_android_util_EventLog(JNIEnv* env); 113extern int register_android_util_Log(JNIEnv* env); 114extern int register_android_util_PathParser(JNIEnv* env); 115extern int register_android_content_StringBlock(JNIEnv* env); 116extern int register_android_content_XmlBlock(JNIEnv* env); 117extern int register_android_graphics_Canvas(JNIEnv* env); 118extern int register_android_graphics_CanvasProperty(JNIEnv* env); 119extern int register_android_graphics_ColorFilter(JNIEnv* env); 120extern int register_android_graphics_DrawFilter(JNIEnv* env); 121extern int register_android_graphics_FontFamily(JNIEnv* env); 122extern int register_android_graphics_LayerRasterizer(JNIEnv*); 123extern int register_android_graphics_Matrix(JNIEnv* env); 124extern int register_android_graphics_Paint(JNIEnv* env); 125extern int register_android_graphics_Path(JNIEnv* env); 126extern int register_android_graphics_PathMeasure(JNIEnv* env); 127extern int register_android_graphics_Picture(JNIEnv*); 128extern int register_android_graphics_PorterDuff(JNIEnv* env); 129extern int register_android_graphics_Rasterizer(JNIEnv* env); 130extern int register_android_graphics_Region(JNIEnv* env); 131extern int register_android_graphics_SurfaceTexture(JNIEnv* env); 132extern int register_android_graphics_Xfermode(JNIEnv* env); 133extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env); 134extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env); 135extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env); 136extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env); 137extern int register_android_view_DisplayEventReceiver(JNIEnv* env); 138extern int register_android_view_DisplayListCanvas(JNIEnv* env); 139extern int register_android_view_GraphicBuffer(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_MessageQueue(JNIEnv* env); 156extern int register_android_os_Parcel(JNIEnv* env); 157extern int register_android_os_SELinux(JNIEnv* env); 158extern int register_android_os_SystemProperties(JNIEnv *env); 159extern int register_android_os_SystemClock(JNIEnv* env); 160extern int register_android_os_Trace(JNIEnv* env); 161extern int register_android_os_FileObserver(JNIEnv *env); 162extern int register_android_os_UEventObserver(JNIEnv* env); 163extern int register_android_os_MemoryFile(JNIEnv* env); 164extern int register_android_net_LocalSocketImpl(JNIEnv* env); 165extern int register_android_net_NetworkUtils(JNIEnv* env); 166extern int register_android_net_TrafficStats(JNIEnv* env); 167extern int register_android_text_AndroidCharacter(JNIEnv *env); 168extern int register_android_text_StaticLayout(JNIEnv *env); 169extern int register_android_text_AndroidBidi(JNIEnv *env); 170extern int register_android_opengl_classes(JNIEnv *env); 171extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env); 172extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env); 173extern int register_android_backup_BackupDataInput(JNIEnv *env); 174extern int register_android_backup_BackupDataOutput(JNIEnv *env); 175extern int register_android_backup_FileBackupHelperBase(JNIEnv *env); 176extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env); 177extern int register_android_app_backup_FullBackup(JNIEnv *env); 178extern int register_android_app_ActivityThread(JNIEnv *env); 179extern int register_android_app_NativeActivity(JNIEnv *env); 180extern int register_android_media_RemoteDisplay(JNIEnv *env); 181extern int register_android_util_jar_StrictJarFile(JNIEnv* env); 182extern int register_android_view_InputChannel(JNIEnv* env); 183extern int register_android_view_InputDevice(JNIEnv* env); 184extern int register_android_view_InputEventReceiver(JNIEnv* env); 185extern int register_android_view_InputEventSender(JNIEnv* env); 186extern int register_android_view_InputQueue(JNIEnv* env); 187extern int register_android_view_KeyCharacterMap(JNIEnv *env); 188extern int register_android_view_KeyEvent(JNIEnv* env); 189extern int register_android_view_MotionEvent(JNIEnv* env); 190extern int register_android_view_PointerIcon(JNIEnv* env); 191extern int register_android_view_VelocityTracker(JNIEnv* env); 192extern int register_android_content_res_ObbScanner(JNIEnv* env); 193extern int register_android_content_res_Configuration(JNIEnv* env); 194extern int register_android_animation_PropertyValuesHolder(JNIEnv *env); 195extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env); 196extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env); 197extern int register_com_android_internal_os_Zygote(JNIEnv *env); 198extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env); 199 200static AndroidRuntime* gCurRuntime = NULL; 201 202/* 203 * Code written in the Java Programming Language calls here from main(). 204 */ 205static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz) 206{ 207 gCurRuntime->onStarted(); 208} 209 210static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz) 211{ 212 gCurRuntime->onZygoteInit(); 213} 214 215static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env, 216 jobject clazz, jboolean exitWithoutCleanup) 217{ 218 gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup); 219} 220 221/* 222 * JNI registration. 223 */ 224static const JNINativeMethod gMethods[] = { 225 { "nativeFinishInit", "()V", 226 (void*) com_android_internal_os_RuntimeInit_nativeFinishInit }, 227 { "nativeZygoteInit", "()V", 228 (void*) com_android_internal_os_RuntimeInit_nativeZygoteInit }, 229 { "nativeSetExitWithoutCleanup", "(Z)V", 230 (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup }, 231}; 232 233int register_com_android_internal_os_RuntimeInit(JNIEnv* env) 234{ 235 return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit", 236 gMethods, NELEM(gMethods)); 237} 238 239// ---------------------------------------------------------------------- 240 241/*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL; 242 243AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) : 244 mExitWithoutCleanup(false), 245 mArgBlockStart(argBlockStart), 246 mArgBlockLength(argBlockLength) 247{ 248 SkGraphics::Init(); 249 // There is also a global font cache, but its budget is specified by 250 // SK_DEFAULT_FONT_CACHE_COUNT_LIMIT and SK_DEFAULT_FONT_CACHE_LIMIT. 251 252 // Pre-allocate enough space to hold a fair number of options. 253 mOptions.setCapacity(20); 254 255 assert(gCurRuntime == NULL); // one per process 256 gCurRuntime = this; 257} 258 259AndroidRuntime::~AndroidRuntime() 260{ 261 SkGraphics::Term(); 262} 263 264/* 265 * Register native methods using JNI. 266 */ 267/*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env, 268 const char* className, const JNINativeMethod* gMethods, int numMethods) 269{ 270 return jniRegisterNativeMethods(env, className, gMethods, numMethods); 271} 272 273void AndroidRuntime::setArgv0(const char* argv0) { 274 memset(mArgBlockStart, 0, mArgBlockLength); 275 strlcpy(mArgBlockStart, argv0, mArgBlockLength); 276} 277 278status_t AndroidRuntime::callMain(const String8& className, jclass clazz, 279 const Vector<String8>& args) 280{ 281 JNIEnv* env; 282 jmethodID methodId; 283 284 ALOGD("Calling main entry %s", className.string()); 285 286 env = getJNIEnv(); 287 if (clazz == NULL || env == NULL) { 288 return UNKNOWN_ERROR; 289 } 290 291 methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V"); 292 if (methodId == NULL) { 293 ALOGE("ERROR: could not find method %s.main(String[])\n", className.string()); 294 return UNKNOWN_ERROR; 295 } 296 297 /* 298 * We want to call main() with a String array with our arguments in it. 299 * Create an array and populate it. 300 */ 301 jclass stringClass; 302 jobjectArray strArray; 303 304 const size_t numArgs = args.size(); 305 stringClass = env->FindClass("java/lang/String"); 306 strArray = env->NewObjectArray(numArgs, stringClass, NULL); 307 308 for (size_t i = 0; i < numArgs; i++) { 309 jstring argStr = env->NewStringUTF(args[i].string()); 310 env->SetObjectArrayElement(strArray, i, argStr); 311 } 312 313 env->CallStaticVoidMethod(clazz, methodId, strArray); 314 return NO_ERROR; 315} 316 317/* 318 * The VM calls this through the "exit" hook. 319 */ 320static void runtime_exit(int code) 321{ 322 gCurRuntime->exit(code); 323} 324 325/* 326 * The VM calls this through the "vfprintf" hook. 327 * 328 * We ignore "fp" and just write the results to the log file. 329 */ 330static void runtime_vfprintf(FILE* fp, const char* format, va_list ap) 331{ 332 LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap); 333} 334 335/** 336 * The VM calls this when mutex contention debugging is enabled to 337 * determine whether or not the blocked thread was a "sensitive thread" 338 * for user responsiveness/smoothess. 339 * 340 * Our policy for this is whether or not we're tracing any StrictMode 341 * events on this thread (which we might've inherited via Binder calls 342 * into us) 343 */ 344static bool runtime_isSensitiveThread() { 345 IPCThreadState* state = IPCThreadState::selfOrNull(); 346 return state && state->getStrictModePolicy() != 0; 347} 348 349static int hasDir(const char* dir) 350{ 351 struct stat s; 352 int res = stat(dir, &s); 353 if (res == 0) { 354 return S_ISDIR(s.st_mode); 355 } 356 return 0; 357} 358 359static bool hasFile(const char* file) { 360 struct stat s; 361 int res = stat(file, &s); 362 if (res == 0) { 363 return S_ISREG(s.st_mode); 364 } 365 return false; 366} 367 368// Convenience wrapper over the property API that returns an 369// std::string. 370std::string getProperty(const char* key, const char* defaultValue) { 371 std::vector<char> temp(PROPERTY_VALUE_MAX); 372 const int len = property_get(key, &temp[0], defaultValue); 373 if (len < 0) { 374 return ""; 375 } 376 return std::string(&temp[0], len); 377} 378 379/* 380 * Read the persistent locale. Inspects the following system properties 381 * (in order) and returns the first non-empty property in the list : 382 * 383 * (1) persist.sys.locale 384 * (2) persist.sys.language/country/localevar (country and localevar are 385 * inspected iff. language is non-empty. 386 * (3) ro.product.locale 387 * (4) ro.product.locale.language/region 388 * 389 * Note that we need to inspect persist.sys.language/country/localevar to 390 * preserve language settings for devices that are upgrading from Lollipop 391 * to M. The same goes for ro.product.locale.language/region as well. 392 */ 393const std::string readLocale() 394{ 395 const std::string locale = getProperty("persist.sys.locale", ""); 396 if (!locale.empty()) { 397 return locale; 398 } 399 400 const std::string language = getProperty("persist.sys.language", ""); 401 if (!language.empty()) { 402 const std::string country = getProperty("persist.sys.country", ""); 403 const std::string variant = getProperty("persist.sys.localevar", ""); 404 405 std::string out = language; 406 if (!country.empty()) { 407 out = out + "-" + country; 408 } 409 410 if (!variant.empty()) { 411 out = out + "-" + variant; 412 } 413 414 return out; 415 } 416 417 const std::string productLocale = getProperty("ro.product.locale", ""); 418 if (!productLocale.empty()) { 419 return productLocale; 420 } 421 422 // If persist.sys.locale and ro.product.locale are missing, 423 // construct a locale value from the individual locale components. 424 const std::string productLanguage = getProperty("ro.product.locale.language", "en"); 425 const std::string productRegion = getProperty("ro.product.locale.region", "US"); 426 427 return productLanguage + "-" + productRegion; 428} 429 430void AndroidRuntime::addOption(const char* optionString, void* extraInfo) 431{ 432 JavaVMOption opt; 433 opt.optionString = optionString; 434 opt.extraInfo = extraInfo; 435 mOptions.add(opt); 436} 437 438/* 439 * Parse a property containing space-separated options that should be 440 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap". 441 * 442 * This will cut up "extraOptsBuf" as we chop it into individual options. 443 * 444 * If "quotingArg" is non-null, it is passed before each extra option in mOptions. 445 * 446 * Adds the strings, if any, to mOptions. 447 */ 448void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg) 449{ 450 char* start = extraOptsBuf; 451 char* end = NULL; 452 while (*start != '\0') { 453 while (*start == ' ') /* skip leading whitespace */ 454 start++; 455 if (*start == '\0') /* was trailing ws, bail */ 456 break; 457 458 end = start+1; 459 while (*end != ' ' && *end != '\0') /* find end of token */ 460 end++; 461 if (*end == ' ') 462 *end++ = '\0'; /* mark end, advance to indicate more */ 463 464 if (quotingArg != NULL) { 465 addOption(quotingArg); 466 } 467 addOption(start); 468 start = end; 469 } 470} 471 472/* 473 * Reads a "property" into "buffer" with a default of "defaultArg". If 474 * the property is non-empty, it is treated as a runtime option such 475 * as "-Xmx32m". 476 * 477 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 478 * 479 * If an argument is found, it is added to mOptions. 480 * 481 * If an option is found, it is added to mOptions and true is 482 * returned. Otherwise false is returned. 483 */ 484bool AndroidRuntime::parseRuntimeOption(const char* property, 485 char* buffer, 486 const char* runtimeArg, 487 const char* defaultArg) 488{ 489 strcpy(buffer, runtimeArg); 490 size_t runtimeArgLen = strlen(runtimeArg); 491 property_get(property, buffer+runtimeArgLen, defaultArg); 492 if (buffer[runtimeArgLen] == '\0') { 493 return false; 494 } 495 addOption(buffer); 496 return true; 497} 498 499/* 500 * Reads a "property" into "buffer". If the property is non-empty, it 501 * is treated as a dex2oat compiler option that should be 502 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none". 503 * 504 * The "compilerArg" is a prefix for the option such as "--compiler-filter=". 505 * 506 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 507 * 508 * If an option is found, it is added to mOptions and true is 509 * returned. Otherwise false is returned. 510 */ 511bool AndroidRuntime::parseCompilerOption(const char* property, 512 char* buffer, 513 const char* compilerArg, 514 const char* quotingArg) 515{ 516 strcpy(buffer, compilerArg); 517 size_t compilerArgLen = strlen(compilerArg); 518 property_get(property, buffer+compilerArgLen, ""); 519 if (buffer[compilerArgLen] == '\0') { 520 return false; 521 } 522 addOption(quotingArg); 523 addOption(buffer); 524 return true; 525} 526 527/* 528 * Reads a "property" into "buffer". If the property is non-empty, it 529 * is treated as a dex2oat compiler runtime option that should be 530 * passed as a quoted option, e.g. "-Ximage-compiler-option 531 * --runtime-arg -Ximage-compiler-option -Xmx32m". 532 * 533 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx". 534 * 535 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option". 536 * 537 * If an option is found, it is added to mOptions and true is 538 * returned. Otherwise false is returned. 539 */ 540bool AndroidRuntime::parseCompilerRuntimeOption(const char* property, 541 char* buffer, 542 const char* runtimeArg, 543 const char* quotingArg) 544{ 545 strcpy(buffer, runtimeArg); 546 size_t runtimeArgLen = strlen(runtimeArg); 547 property_get(property, buffer+runtimeArgLen, ""); 548 if (buffer[runtimeArgLen] == '\0') { 549 return false; 550 } 551 addOption(quotingArg); 552 addOption("--runtime-arg"); 553 addOption(quotingArg); 554 addOption(buffer); 555 return true; 556} 557 558/* 559 * Start the Dalvik Virtual Machine. 560 * 561 * Various arguments, most determined by system properties, are passed in. 562 * The "mOptions" vector is updated. 563 * 564 * CAUTION: when adding options in here, be careful not to put the 565 * char buffer inside a nested scope. Adding the buffer to the 566 * options using mOptions.add() does not copy the buffer, so if the 567 * buffer goes out of scope the option may be overwritten. It's best 568 * to put the buffer at the top of the function so that it is more 569 * unlikely that someone will surround it in a scope at a later time 570 * and thus introduce a bug. 571 * 572 * Returns 0 on success. 573 */ 574int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote) 575{ 576 JavaVMInitArgs initArgs; 577 char propBuf[PROPERTY_VALUE_MAX]; 578 char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX]; 579 char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX]; 580 char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 581 char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 582 char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX]; 583 char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX]; 584 char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX]; 585 char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX]; 586 char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX]; 587 char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX]; 588 char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX]; 589 char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX]; 590 char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX]; 591 char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX]; 592 char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX]; 593 char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 594 char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 595 char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX]; 596 char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX]; 597 char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 598 char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX]; 599 char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 600 char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX]; 601 char dex2oat_isa_variant_key[PROPERTY_KEY_MAX]; 602 char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX]; 603 char dex2oat_isa_features_key[PROPERTY_KEY_MAX]; 604 char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX]; 605 char dex2oatFlagsBuf[PROPERTY_VALUE_MAX]; 606 char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX]; 607 char extraOptsBuf[PROPERTY_VALUE_MAX]; 608 char voldDecryptBuf[PROPERTY_VALUE_MAX]; 609 enum { 610 kEMDefault, 611 kEMIntPortable, 612 kEMIntFast, 613 kEMJitCompiler, 614 } executionMode = kEMDefault; 615 char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX]; 616 char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX]; 617 char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX]; 618 char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX]; 619 char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX]; 620 char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX]; 621 char fingerprintBuf[sizeof("-Xfingerprint:") + PROPERTY_VALUE_MAX]; 622 623 bool checkJni = false; 624 property_get("dalvik.vm.checkjni", propBuf, ""); 625 if (strcmp(propBuf, "true") == 0) { 626 checkJni = true; 627 } else if (strcmp(propBuf, "false") != 0) { 628 /* property is neither true nor false; fall back on kernel parameter */ 629 property_get("ro.kernel.android.checkjni", propBuf, ""); 630 if (propBuf[0] == '1') { 631 checkJni = true; 632 } 633 } 634 ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF"); 635 if (checkJni) { 636 /* extended JNI checking */ 637 addOption("-Xcheck:jni"); 638 639 /* with -Xcheck:jni, this provides a JNI function call trace */ 640 //addOption("-verbose:jni"); 641 } 642 643 property_get("dalvik.vm.execution-mode", propBuf, ""); 644 if (strcmp(propBuf, "int:portable") == 0) { 645 executionMode = kEMIntPortable; 646 } else if (strcmp(propBuf, "int:fast") == 0) { 647 executionMode = kEMIntFast; 648 } else if (strcmp(propBuf, "int:jit") == 0) { 649 executionMode = kEMJitCompiler; 650 } 651 652 parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:"); 653 654 strcpy(jniOptsBuf, "-Xjniopts:"); 655 if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) { 656 ALOGI("JNI options: '%s'\n", jniOptsBuf); 657 } 658 659 /* route exit() to our handler */ 660 addOption("exit", (void*) runtime_exit); 661 662 /* route fprintf() to our handler */ 663 addOption("vfprintf", (void*) runtime_vfprintf); 664 665 /* register the framework-specific "is sensitive thread" hook */ 666 addOption("sensitiveThread", (void*) runtime_isSensitiveThread); 667 668 /* enable verbose; standard options are { jni, gc, class } */ 669 //addOption("-verbose:jni"); 670 addOption("-verbose:gc"); 671 //addOption("-verbose:class"); 672 673 /* 674 * The default starting and maximum size of the heap. Larger 675 * values should be specified in a product property override. 676 */ 677 parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m"); 678 parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m"); 679 680 parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit="); 681 parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree="); 682 parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree="); 683 parseRuntimeOption("dalvik.vm.heaptargetutilization", 684 heaptargetutilizationOptsBuf, 685 "-XX:HeapTargetUtilization="); 686 687 /* 688 * JIT related options. 689 */ 690 parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:"); 691 parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:"); 692 parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:"); 693 parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:"); 694 695 property_get("ro.config.low_ram", propBuf, ""); 696 if (strcmp(propBuf, "true") == 0) { 697 addOption("-XX:LowMemoryMode"); 698 } 699 700 parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:"); 701 parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC="); 702 703 /* 704 * Enable debugging only for apps forked from zygote. 705 * Set suspend=y to pause during VM init and use android ADB transport. 706 */ 707 if (zygote) { 708 addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y"); 709 } 710 711 parseRuntimeOption("dalvik.vm.lockprof.threshold", 712 lockProfThresholdBuf, 713 "-Xlockprofthreshold:"); 714 715 if (executionMode == kEMIntPortable) { 716 addOption("-Xint:portable"); 717 } else if (executionMode == kEMIntFast) { 718 addOption("-Xint:fast"); 719 } else if (executionMode == kEMJitCompiler) { 720 addOption("-Xint:jit"); 721 } 722 723 // If we are booting without the real /data, don't spend time compiling. 724 property_get("vold.decrypt", voldDecryptBuf, ""); 725 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) || 726 (strcmp(voldDecryptBuf, "1") == 0)); 727 728 // Extra options for boot.art/boot.oat image generation. 729 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf, 730 "-Xms", "-Ximage-compiler-option"); 731 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf, 732 "-Xmx", "-Ximage-compiler-option"); 733 if (skip_compilation) { 734 addOption("-Ximage-compiler-option"); 735 addOption("--compiler-filter=verify-none"); 736 } else { 737 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf, 738 "--compiler-filter=", "-Ximage-compiler-option"); 739 } 740 741 // Make sure there is a preloaded-classes file. 742 if (!hasFile("/system/etc/preloaded-classes")) { 743 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n", 744 strerror(errno)); 745 return -1; 746 } 747 addOption("-Ximage-compiler-option"); 748 addOption("--image-classes=/system/etc/preloaded-classes"); 749 750 // If there is a compiled-classes file, push it. 751 if (hasFile("/system/etc/compiled-classes")) { 752 addOption("-Ximage-compiler-option"); 753 addOption("--compiled-classes=/system/etc/compiled-classes"); 754 } 755 756 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, ""); 757 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option"); 758 759 // Extra options for DexClassLoader. 760 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf, 761 "-Xms", "-Xcompiler-option"); 762 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf, 763 "-Xmx", "-Xcompiler-option"); 764 if (skip_compilation) { 765 addOption("-Xcompiler-option"); 766 addOption("--compiler-filter=verify-none"); 767 768 // We skip compilation when a minimal runtime is brought up for decryption. In that case 769 // /data is temporarily backed by a tmpfs, which is usually small. 770 // If the system image contains prebuilts, they will be relocated into the tmpfs. In this 771 // specific situation it is acceptable to *not* relocate and run out of the prebuilts 772 // directly instead. 773 addOption("--runtime-arg"); 774 addOption("-Xnorelocate"); 775 } else { 776 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf, 777 "--compiler-filter=", "-Xcompiler-option"); 778 } 779 parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option"); 780 parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j", 781 "-Ximage-compiler-option"); 782 783 // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to 784 // pass the instruction-set-features/variant as an image-compiler-option. 785 // TODO: Find a better way for the instruction-set. 786#if defined(__arm__) 787 constexpr const char* instruction_set = "arm"; 788#elif defined(__aarch64__) 789 constexpr const char* instruction_set = "arm64"; 790#elif defined(__mips__) && !defined(__LP64__) 791 constexpr const char* instruction_set = "mips"; 792#elif defined(__mips__) && defined(__LP64__) 793 constexpr const char* instruction_set = "mips64"; 794#elif defined(__i386__) 795 constexpr const char* instruction_set = "x86"; 796#elif defined(__x86_64__) 797 constexpr const char* instruction_set = "x86_64"; 798#else 799 constexpr const char* instruction_set = "unknown"; 800#endif 801 // Note: it is OK to reuse the buffer, as the values are exactly the same between 802 // * compiler-option, used for runtime compilation (DexClassLoader) 803 // * image-compiler-option, used for boot-image compilation on device 804 805 // Copy the variant. 806 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set); 807 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 808 "--instruction-set-variant=", "-Ximage-compiler-option"); 809 parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant, 810 "--instruction-set-variant=", "-Xcompiler-option"); 811 // Copy the features. 812 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set); 813 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 814 "--instruction-set-features=", "-Ximage-compiler-option"); 815 parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features, 816 "--instruction-set-features=", "-Xcompiler-option"); 817 818 819 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, ""); 820 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option"); 821 822 /* extra options; parse this late so it overrides others */ 823 property_get("dalvik.vm.extra-opts", extraOptsBuf, ""); 824 parseExtraOpts(extraOptsBuf, NULL); 825 826 /* Set the properties for locale */ 827 { 828 strcpy(localeOption, "-Duser.locale="); 829 const std::string locale = readLocale(); 830 strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX); 831 addOption(localeOption); 832 } 833 834 // Trace files are stored in /data/misc/trace which is writable only in debug mode. 835 property_get("ro.debuggable", propBuf, "0"); 836 if (strcmp(propBuf, "1") == 0) { 837 property_get("dalvik.vm.method-trace", propBuf, "false"); 838 if (strcmp(propBuf, "true") == 0) { 839 addOption("-Xmethod-trace"); 840 parseRuntimeOption("dalvik.vm.method-trace-file", 841 methodTraceFileBuf, 842 "-Xmethod-trace-file:"); 843 parseRuntimeOption("dalvik.vm.method-trace-file-siz", 844 methodTraceFileSizeBuf, 845 "-Xmethod-trace-file-size:"); 846 property_get("dalvik.vm.method-trace-stream", propBuf, "false"); 847 if (strcmp(propBuf, "true") == 0) { 848 addOption("-Xmethod-trace-stream"); 849 } 850 } 851 } 852 853 // Native bridge library. "0" means that native bridge is disabled. 854 property_get("ro.dalvik.vm.native.bridge", propBuf, ""); 855 if (propBuf[0] == '\0') { 856 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty"); 857 } else if (strcmp(propBuf, "0") != 0) { 858 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX, 859 "-XX:NativeBridge=%s", propBuf); 860 addOption(nativeBridgeLibrary); 861 } 862 863#if defined(__LP64__) 864 const char* cpu_abilist_property_name = "ro.product.cpu.abilist64"; 865#else 866 const char* cpu_abilist_property_name = "ro.product.cpu.abilist32"; 867#endif // defined(__LP64__) 868 property_get(cpu_abilist_property_name, propBuf, ""); 869 if (propBuf[0] == '\0') { 870 ALOGE("%s is not expected to be empty", cpu_abilist_property_name); 871 return -1; 872 } 873 snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf); 874 addOption(cpuAbiListBuf); 875 876 // Dalvik-cache pruning counter. 877 parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf, 878 "-Xzygote-max-boot-retry="); 879 880 /* 881 * When running with debug.generate-debug-info, add --generate-debug-info to 882 * the compiler options so that the boot image, if it is compiled on device, 883 * will include native debugging information. 884 */ 885 property_get("debug.generate-debug-info", propBuf, ""); 886 if (strcmp(propBuf, "true") == 0) { 887 addOption("-Xcompiler-option"); 888 addOption("--generate-debug-info"); 889 addOption("-Ximage-compiler-option"); 890 addOption("--generate-debug-info"); 891 } 892 893 /* 894 * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will 895 * contain the fingerprint and can be parsed. 896 */ 897 parseRuntimeOption("ro.build.fingerprint", fingerprintBuf, "-Xfingerprint:"); 898 899 initArgs.version = JNI_VERSION_1_4; 900 initArgs.options = mOptions.editArray(); 901 initArgs.nOptions = mOptions.size(); 902 initArgs.ignoreUnrecognized = JNI_FALSE; 903 904 /* 905 * Initialize the VM. 906 * 907 * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread. 908 * If this call succeeds, the VM is ready, and we can start issuing 909 * JNI calls. 910 */ 911 if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) { 912 ALOGE("JNI_CreateJavaVM failed\n"); 913 return -1; 914 } 915 916 return 0; 917} 918 919char* AndroidRuntime::toSlashClassName(const char* className) 920{ 921 char* result = strdup(className); 922 for (char* cp = result; *cp != '\0'; cp++) { 923 if (*cp == '.') { 924 *cp = '/'; 925 } 926 } 927 return result; 928} 929 930/** Create a Java string from an ASCII or Latin-1 string */ 931jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) { 932 if (!bytes) return NULL; 933 int length = strlen(bytes); 934 jchar* buffer = (jchar *)alloca(length * sizeof(jchar)); 935 if (!buffer) return NULL; 936 jchar* chp = buffer; 937 for (int i = 0; i < length; i++) { 938 *chp++ = *bytes++; 939 } 940 return env->NewString(buffer, length); 941} 942 943 944/* 945 * Start the Android runtime. This involves starting the virtual machine 946 * and calling the "static void main(String[] args)" method in the class 947 * named by "className". 948 * 949 * Passes the main function two arguments, the class name and the specified 950 * options string. 951 */ 952void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote) 953{ 954 ALOGD(">>>>>> START %s uid %d <<<<<<\n", 955 className != NULL ? className : "(unknown)", getuid()); 956 957 static const String8 startSystemServer("start-system-server"); 958 959 /* 960 * 'startSystemServer == true' means runtime is obsolete and not run from 961 * init.rc anymore, so we print out the boot start event here. 962 */ 963 for (size_t i = 0; i < options.size(); ++i) { 964 if (options[i] == startSystemServer) { 965 /* track our progress through the boot sequence */ 966 const int LOG_BOOT_PROGRESS_START = 3000; 967 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC))); 968 } 969 } 970 971 const char* rootDir = getenv("ANDROID_ROOT"); 972 if (rootDir == NULL) { 973 rootDir = "/system"; 974 if (!hasDir("/system")) { 975 LOG_FATAL("No root directory specified, and /android does not exist."); 976 return; 977 } 978 setenv("ANDROID_ROOT", rootDir, 1); 979 } 980 981 //const char* kernelHack = getenv("LD_ASSUME_KERNEL"); 982 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack); 983 984 /* start the virtual machine */ 985 JniInvocation jni_invocation; 986 jni_invocation.Init(NULL); 987 JNIEnv* env; 988 if (startVm(&mJavaVM, &env, zygote) != 0) { 989 return; 990 } 991 onVmCreated(env); 992 993 /* 994 * Register android functions. 995 */ 996 if (startReg(env) < 0) { 997 ALOGE("Unable to register all android natives\n"); 998 return; 999 } 1000 1001 /* 1002 * We want to call main() with a String array with arguments in it. 1003 * At present we have two arguments, the class name and an option string. 1004 * Create an array to hold them. 1005 */ 1006 jclass stringClass; 1007 jobjectArray strArray; 1008 jstring classNameStr; 1009 1010 stringClass = env->FindClass("java/lang/String"); 1011 assert(stringClass != NULL); 1012 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL); 1013 assert(strArray != NULL); 1014 classNameStr = env->NewStringUTF(className); 1015 assert(classNameStr != NULL); 1016 env->SetObjectArrayElement(strArray, 0, classNameStr); 1017 1018 for (size_t i = 0; i < options.size(); ++i) { 1019 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string()); 1020 assert(optionsStr != NULL); 1021 env->SetObjectArrayElement(strArray, i + 1, optionsStr); 1022 } 1023 1024 /* 1025 * Start VM. This thread becomes the main thread of the VM, and will 1026 * not return until the VM exits. 1027 */ 1028 char* slashClassName = toSlashClassName(className); 1029 jclass startClass = env->FindClass(slashClassName); 1030 if (startClass == NULL) { 1031 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName); 1032 /* keep going */ 1033 } else { 1034 jmethodID startMeth = env->GetStaticMethodID(startClass, "main", 1035 "([Ljava/lang/String;)V"); 1036 if (startMeth == NULL) { 1037 ALOGE("JavaVM unable to find main() in '%s'\n", className); 1038 /* keep going */ 1039 } else { 1040 env->CallStaticVoidMethod(startClass, startMeth, strArray); 1041 1042#if 0 1043 if (env->ExceptionCheck()) 1044 threadExitUncaughtException(env); 1045#endif 1046 } 1047 } 1048 free(slashClassName); 1049 1050 ALOGD("Shutting down VM\n"); 1051 if (mJavaVM->DetachCurrentThread() != JNI_OK) 1052 ALOGW("Warning: unable to detach main thread\n"); 1053 if (mJavaVM->DestroyJavaVM() != 0) 1054 ALOGW("Warning: VM did not shut down cleanly\n"); 1055} 1056 1057void AndroidRuntime::exit(int code) 1058{ 1059 if (mExitWithoutCleanup) { 1060 ALOGI("VM exiting with result code %d, cleanup skipped.", code); 1061 ::_exit(code); 1062 } else { 1063 ALOGI("VM exiting with result code %d.", code); 1064 onExit(code); 1065 ::exit(code); 1066 } 1067} 1068 1069void AndroidRuntime::onVmCreated(JNIEnv* env) 1070{ 1071 // If AndroidRuntime had anything to do here, we'd have done it in 'start'. 1072} 1073 1074/* 1075 * Get the JNIEnv pointer for this thread. 1076 * 1077 * Returns NULL if the slot wasn't allocated or populated. 1078 */ 1079/*static*/ JNIEnv* AndroidRuntime::getJNIEnv() 1080{ 1081 JNIEnv* env; 1082 JavaVM* vm = AndroidRuntime::getJavaVM(); 1083 assert(vm != NULL); 1084 1085 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) 1086 return NULL; 1087 return env; 1088} 1089 1090/* 1091 * Makes the current thread visible to the VM. 1092 * 1093 * The JNIEnv pointer returned is only valid for the current thread, and 1094 * thus must be tucked into thread-local storage. 1095 */ 1096static int javaAttachThread(const char* threadName, JNIEnv** pEnv) 1097{ 1098 JavaVMAttachArgs args; 1099 JavaVM* vm; 1100 jint result; 1101 1102 vm = AndroidRuntime::getJavaVM(); 1103 assert(vm != NULL); 1104 1105 args.version = JNI_VERSION_1_4; 1106 args.name = (char*) threadName; 1107 args.group = NULL; 1108 1109 result = vm->AttachCurrentThread(pEnv, (void*) &args); 1110 if (result != JNI_OK) 1111 ALOGI("NOTE: attach of thread '%s' failed\n", threadName); 1112 1113 return result; 1114} 1115 1116/* 1117 * Detach the current thread from the set visible to the VM. 1118 */ 1119static int javaDetachThread(void) 1120{ 1121 JavaVM* vm; 1122 jint result; 1123 1124 vm = AndroidRuntime::getJavaVM(); 1125 assert(vm != NULL); 1126 1127 result = vm->DetachCurrentThread(); 1128 if (result != JNI_OK) 1129 ALOGE("ERROR: thread detach failed\n"); 1130 return result; 1131} 1132 1133/* 1134 * When starting a native thread that will be visible from the VM, we 1135 * bounce through this to get the right attach/detach action. 1136 * Note that this function calls free(args) 1137 */ 1138/*static*/ int AndroidRuntime::javaThreadShell(void* args) { 1139 void* start = ((void**)args)[0]; 1140 void* userData = ((void **)args)[1]; 1141 char* name = (char*) ((void **)args)[2]; // we own this storage 1142 free(args); 1143 JNIEnv* env; 1144 int result; 1145 1146 /* hook us into the VM */ 1147 if (javaAttachThread(name, &env) != JNI_OK) 1148 return -1; 1149 1150 /* start the thread running */ 1151 result = (*(android_thread_func_t)start)(userData); 1152 1153 /* unhook us */ 1154 javaDetachThread(); 1155 free(name); 1156 1157 return result; 1158} 1159 1160/* 1161 * This is invoked from androidCreateThreadEtc() via the callback 1162 * set with androidSetCreateThreadFunc(). 1163 * 1164 * We need to create the new thread in such a way that it gets hooked 1165 * into the VM before it really starts executing. 1166 */ 1167/*static*/ int AndroidRuntime::javaCreateThreadEtc( 1168 android_thread_func_t entryFunction, 1169 void* userData, 1170 const char* threadName, 1171 int32_t threadPriority, 1172 size_t threadStackSize, 1173 android_thread_id_t* threadId) 1174{ 1175 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free 1176 int result; 1177 1178 if (!threadName) 1179 threadName = "unnamed thread"; 1180 1181 args[0] = (void*) entryFunction; 1182 args[1] = userData; 1183 args[2] = (void*) strdup(threadName); // javaThreadShell must free 1184 1185 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args, 1186 threadName, threadPriority, threadStackSize, threadId); 1187 return result; 1188} 1189 1190/* 1191 * Create a thread that is visible from the VM. 1192 * 1193 * This is called from elsewhere in the library. 1194 */ 1195/*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name, 1196 void (*start)(void *), void* arg) 1197{ 1198 android_thread_id_t threadId = 0; 1199 javaCreateThreadEtc((android_thread_func_t) start, arg, name, 1200 ANDROID_PRIORITY_DEFAULT, 0, &threadId); 1201 return threadId; 1202} 1203 1204#if 0 1205static void quickTest(void* arg) 1206{ 1207 const char* str = (const char*) arg; 1208 1209 printf("In quickTest: %s\n", str); 1210} 1211#endif 1212 1213#ifdef NDEBUG 1214 #define REG_JNI(name) { name } 1215 struct RegJNIRec { 1216 int (*mProc)(JNIEnv*); 1217 }; 1218#else 1219 #define REG_JNI(name) { name, #name } 1220 struct RegJNIRec { 1221 int (*mProc)(JNIEnv*); 1222 const char* mName; 1223 }; 1224#endif 1225 1226typedef void (*RegJAMProc)(); 1227 1228static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) 1229{ 1230 for (size_t i = 0; i < count; i++) { 1231 if (array[i].mProc(env) < 0) { 1232#ifndef NDEBUG 1233 ALOGD("----------!!! %s failed to load\n", array[i].mName); 1234#endif 1235 return -1; 1236 } 1237 } 1238 return 0; 1239} 1240 1241static const RegJNIRec gRegJNI[] = { 1242 REG_JNI(register_com_android_internal_os_RuntimeInit), 1243 REG_JNI(register_android_os_SystemClock), 1244 REG_JNI(register_android_util_EventLog), 1245 REG_JNI(register_android_util_Log), 1246 REG_JNI(register_android_util_PathParser), 1247 REG_JNI(register_android_content_AssetManager), 1248 REG_JNI(register_android_content_StringBlock), 1249 REG_JNI(register_android_content_XmlBlock), 1250 REG_JNI(register_android_text_AndroidCharacter), 1251 REG_JNI(register_android_text_StaticLayout), 1252 REG_JNI(register_android_text_AndroidBidi), 1253 REG_JNI(register_android_view_InputDevice), 1254 REG_JNI(register_android_view_KeyCharacterMap), 1255 REG_JNI(register_android_os_Process), 1256 REG_JNI(register_android_os_SystemProperties), 1257 REG_JNI(register_android_os_Binder), 1258 REG_JNI(register_android_os_Parcel), 1259 REG_JNI(register_android_nio_utils), 1260 REG_JNI(register_android_graphics_Graphics), 1261 REG_JNI(register_android_view_DisplayEventReceiver), 1262 REG_JNI(register_android_view_RenderNode), 1263 REG_JNI(register_android_view_RenderNodeAnimator), 1264 REG_JNI(register_android_view_GraphicBuffer), 1265 REG_JNI(register_android_view_DisplayListCanvas), 1266 REG_JNI(register_android_view_HardwareLayer), 1267 REG_JNI(register_android_view_ThreadedRenderer), 1268 REG_JNI(register_android_view_Surface), 1269 REG_JNI(register_android_view_SurfaceControl), 1270 REG_JNI(register_android_view_SurfaceSession), 1271 REG_JNI(register_android_view_TextureView), 1272 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper), 1273 REG_JNI(register_com_google_android_gles_jni_EGLImpl), 1274 REG_JNI(register_com_google_android_gles_jni_GLImpl), 1275 REG_JNI(register_android_opengl_jni_EGL14), 1276 REG_JNI(register_android_opengl_jni_EGLExt), 1277 REG_JNI(register_android_opengl_jni_GLES10), 1278 REG_JNI(register_android_opengl_jni_GLES10Ext), 1279 REG_JNI(register_android_opengl_jni_GLES11), 1280 REG_JNI(register_android_opengl_jni_GLES11Ext), 1281 REG_JNI(register_android_opengl_jni_GLES20), 1282 REG_JNI(register_android_opengl_jni_GLES30), 1283 REG_JNI(register_android_opengl_jni_GLES31), 1284 REG_JNI(register_android_opengl_jni_GLES31Ext), 1285 REG_JNI(register_android_opengl_jni_GLES32), 1286 1287 REG_JNI(register_android_graphics_Bitmap), 1288 REG_JNI(register_android_graphics_BitmapFactory), 1289 REG_JNI(register_android_graphics_BitmapRegionDecoder), 1290 REG_JNI(register_android_graphics_Camera), 1291 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor), 1292 REG_JNI(register_android_graphics_Canvas), 1293 REG_JNI(register_android_graphics_CanvasProperty), 1294 REG_JNI(register_android_graphics_ColorFilter), 1295 REG_JNI(register_android_graphics_DrawFilter), 1296 REG_JNI(register_android_graphics_FontFamily), 1297 REG_JNI(register_android_graphics_Interpolator), 1298 REG_JNI(register_android_graphics_LayerRasterizer), 1299 REG_JNI(register_android_graphics_MaskFilter), 1300 REG_JNI(register_android_graphics_Matrix), 1301 REG_JNI(register_android_graphics_Movie), 1302 REG_JNI(register_android_graphics_NinePatch), 1303 REG_JNI(register_android_graphics_Paint), 1304 REG_JNI(register_android_graphics_Path), 1305 REG_JNI(register_android_graphics_PathMeasure), 1306 REG_JNI(register_android_graphics_PathEffect), 1307 REG_JNI(register_android_graphics_Picture), 1308 REG_JNI(register_android_graphics_PorterDuff), 1309 REG_JNI(register_android_graphics_Rasterizer), 1310 REG_JNI(register_android_graphics_Region), 1311 REG_JNI(register_android_graphics_Shader), 1312 REG_JNI(register_android_graphics_SurfaceTexture), 1313 REG_JNI(register_android_graphics_Typeface), 1314 REG_JNI(register_android_graphics_Xfermode), 1315 REG_JNI(register_android_graphics_YuvImage), 1316 REG_JNI(register_android_graphics_drawable_VectorDrawable), 1317 REG_JNI(register_android_graphics_pdf_PdfDocument), 1318 REG_JNI(register_android_graphics_pdf_PdfEditor), 1319 REG_JNI(register_android_graphics_pdf_PdfRenderer), 1320 1321 REG_JNI(register_android_database_CursorWindow), 1322 REG_JNI(register_android_database_SQLiteConnection), 1323 REG_JNI(register_android_database_SQLiteGlobal), 1324 REG_JNI(register_android_database_SQLiteDebug), 1325 REG_JNI(register_android_os_Debug), 1326 REG_JNI(register_android_os_FileObserver), 1327 REG_JNI(register_android_os_MessageQueue), 1328 REG_JNI(register_android_os_SELinux), 1329 REG_JNI(register_android_os_Trace), 1330 REG_JNI(register_android_os_UEventObserver), 1331 REG_JNI(register_android_net_LocalSocketImpl), 1332 REG_JNI(register_android_net_NetworkUtils), 1333 REG_JNI(register_android_net_TrafficStats), 1334 REG_JNI(register_android_os_MemoryFile), 1335 REG_JNI(register_com_android_internal_os_Zygote), 1336 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr), 1337 REG_JNI(register_android_hardware_Camera), 1338 REG_JNI(register_android_hardware_camera2_CameraMetadata), 1339 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice), 1340 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement), 1341 REG_JNI(register_android_hardware_camera2_DngCreator), 1342 REG_JNI(register_android_hardware_Radio), 1343 REG_JNI(register_android_hardware_SensorManager), 1344 REG_JNI(register_android_hardware_SerialPort), 1345 REG_JNI(register_android_hardware_SoundTrigger), 1346 REG_JNI(register_android_hardware_UsbDevice), 1347 REG_JNI(register_android_hardware_UsbDeviceConnection), 1348 REG_JNI(register_android_hardware_UsbRequest), 1349 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware), 1350 REG_JNI(register_android_media_AudioRecord), 1351 REG_JNI(register_android_media_AudioSystem), 1352 REG_JNI(register_android_media_AudioTrack), 1353 REG_JNI(register_android_media_JetPlayer), 1354 REG_JNI(register_android_media_RemoteDisplay), 1355 REG_JNI(register_android_media_ToneGenerator), 1356 1357 REG_JNI(register_android_opengl_classes), 1358 REG_JNI(register_android_server_NetworkManagementSocketTagger), 1359 REG_JNI(register_android_ddm_DdmHandleNativeHeap), 1360 REG_JNI(register_android_backup_BackupDataInput), 1361 REG_JNI(register_android_backup_BackupDataOutput), 1362 REG_JNI(register_android_backup_FileBackupHelperBase), 1363 REG_JNI(register_android_backup_BackupHelperDispatcher), 1364 REG_JNI(register_android_app_backup_FullBackup), 1365 REG_JNI(register_android_app_ActivityThread), 1366 REG_JNI(register_android_app_NativeActivity), 1367 REG_JNI(register_android_util_jar_StrictJarFile), 1368 REG_JNI(register_android_view_InputChannel), 1369 REG_JNI(register_android_view_InputEventReceiver), 1370 REG_JNI(register_android_view_InputEventSender), 1371 REG_JNI(register_android_view_InputQueue), 1372 REG_JNI(register_android_view_KeyEvent), 1373 REG_JNI(register_android_view_MotionEvent), 1374 REG_JNI(register_android_view_PointerIcon), 1375 REG_JNI(register_android_view_VelocityTracker), 1376 1377 REG_JNI(register_android_content_res_ObbScanner), 1378 REG_JNI(register_android_content_res_Configuration), 1379 1380 REG_JNI(register_android_animation_PropertyValuesHolder), 1381 REG_JNI(register_com_android_internal_content_NativeLibraryHelper), 1382 REG_JNI(register_com_android_internal_net_NetworkStatsFactory), 1383 1384 1385}; 1386 1387/* 1388 * Register android native functions with the VM. 1389 */ 1390/*static*/ int AndroidRuntime::startReg(JNIEnv* env) 1391{ 1392 ATRACE_NAME("RegisterAndroidNatives"); 1393 /* 1394 * This hook causes all future threads created in this process to be 1395 * attached to the JavaVM. (This needs to go away in favor of JNI 1396 * Attach calls.) 1397 */ 1398 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc); 1399 1400 ALOGV("--- registering native functions ---\n"); 1401 1402 /* 1403 * Every "register" function calls one or more things that return 1404 * a local reference (e.g. FindClass). Because we haven't really 1405 * started the VM yet, they're all getting stored in the base frame 1406 * and never released. Use Push/Pop to manage the storage. 1407 */ 1408 env->PushLocalFrame(200); 1409 1410 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) { 1411 env->PopLocalFrame(NULL); 1412 return -1; 1413 } 1414 env->PopLocalFrame(NULL); 1415 1416 //createJavaThread("fubar", quickTest, (void*) "hello"); 1417 1418 return 0; 1419} 1420 1421AndroidRuntime* AndroidRuntime::getRuntime() 1422{ 1423 return gCurRuntime; 1424} 1425 1426/** 1427 * Used by surface flinger's DdmConnection to register native methods from 1428 * the framework. 1429 */ 1430extern "C" jint registerFrameworkNatives(JNIEnv* env) { 1431 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env); 1432} 1433} // namespace android 1434