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 LOG_TAG "AndroidRuntime"
18 //#define LOG_NDEBUG 0
19
20 #include <android_runtime/AndroidRuntime.h>
21 #include <binder/IBinder.h>
22 #include <binder/IPCThreadState.h>
23 #include <binder/IServiceManager.h>
24 #include <utils/Log.h>
25 #include <utils/misc.h>
26 #include <binder/Parcel.h>
27 #include <utils/threads.h>
28 #include <cutils/properties.h>
29
30 #include <SkGraphics.h>
31 #include <SkImageDecoder.h>
32
33 #include "jni.h"
34 #include "JNIHelp.h"
35 #include "JniInvocation.h"
36 #include "android_util_Binder.h"
37
38 #include <stdio.h>
39 #include <signal.h>
40 #include <sys/stat.h>
41 #include <sys/types.h>
42 #include <signal.h>
43 #include <dirent.h>
44 #include <assert.h>
45
46
47 using namespace android;
48
49 extern int register_android_os_Binder(JNIEnv* env);
50 extern int register_android_os_Process(JNIEnv* env);
51 extern int register_android_graphics_Bitmap(JNIEnv*);
52 extern int register_android_graphics_BitmapFactory(JNIEnv*);
53 extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*);
54 extern int register_android_graphics_Camera(JNIEnv* env);
55 extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env);
56 extern int register_android_graphics_Graphics(JNIEnv* env);
57 extern int register_android_graphics_Interpolator(JNIEnv* env);
58 extern int register_android_graphics_MaskFilter(JNIEnv* env);
59 extern int register_android_graphics_Movie(JNIEnv* env);
60 extern int register_android_graphics_NinePatch(JNIEnv*);
61 extern int register_android_graphics_PathEffect(JNIEnv* env);
62 extern int register_android_graphics_Shader(JNIEnv* env);
63 extern int register_android_graphics_Typeface(JNIEnv* env);
64 extern int register_android_graphics_YuvImage(JNIEnv* env);
65
66 extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env);
67 extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env);
68 extern int register_android_opengl_jni_EGL14(JNIEnv* env);
69 extern int register_android_opengl_jni_EGLExt(JNIEnv* env);
70 extern int register_android_opengl_jni_GLES10(JNIEnv* env);
71 extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env);
72 extern int register_android_opengl_jni_GLES11(JNIEnv* env);
73 extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env);
74 extern int register_android_opengl_jni_GLES20(JNIEnv* env);
75 extern int register_android_opengl_jni_GLES30(JNIEnv* env);
76 extern int register_android_opengl_jni_GLES31(JNIEnv* env);
77 extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env);
78
79 extern int register_android_hardware_Camera(JNIEnv *env);
80 extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env);
81 extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env);
82 extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env);
83 extern int register_android_hardware_camera2_DngCreator(JNIEnv *env);
84 extern int register_android_hardware_SensorManager(JNIEnv *env);
85 extern int register_android_hardware_SerialPort(JNIEnv *env);
86 extern int register_android_hardware_SoundTrigger(JNIEnv *env);
87 extern int register_android_hardware_UsbDevice(JNIEnv *env);
88 extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
89 extern int register_android_hardware_UsbRequest(JNIEnv *env);
90 extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env);
91
92 extern int register_android_media_AudioRecord(JNIEnv *env);
93 extern int register_android_media_AudioSystem(JNIEnv *env);
94 extern int register_android_media_AudioTrack(JNIEnv *env);
95 extern int register_android_media_JetPlayer(JNIEnv *env);
96 extern int register_android_media_ToneGenerator(JNIEnv *env);
97
98 extern int register_android_util_FloatMath(JNIEnv* env);
99
100 namespace android {
101
102 /*
103 * JNI-based registration functions. Note these are properly contained in
104 * namespace android.
105 */
106 extern int register_android_content_AssetManager(JNIEnv* env);
107 extern int register_android_util_EventLog(JNIEnv* env);
108 extern int register_android_util_Log(JNIEnv* env);
109 extern int register_android_content_StringBlock(JNIEnv* env);
110 extern int register_android_content_XmlBlock(JNIEnv* env);
111 extern int register_android_emoji_EmojiFactory(JNIEnv* env);
112 extern int register_android_graphics_Canvas(JNIEnv* env);
113 extern int register_android_graphics_CanvasProperty(JNIEnv* env);
114 extern int register_android_graphics_ColorFilter(JNIEnv* env);
115 extern int register_android_graphics_DrawFilter(JNIEnv* env);
116 extern int register_android_graphics_FontFamily(JNIEnv* env);
117 extern int register_android_graphics_LayerRasterizer(JNIEnv*);
118 extern int register_android_graphics_Matrix(JNIEnv* env);
119 extern int register_android_graphics_Paint(JNIEnv* env);
120 extern int register_android_graphics_Path(JNIEnv* env);
121 extern int register_android_graphics_PathMeasure(JNIEnv* env);
122 extern int register_android_graphics_Picture(JNIEnv*);
123 extern int register_android_graphics_PorterDuff(JNIEnv* env);
124 extern int register_android_graphics_Rasterizer(JNIEnv* env);
125 extern int register_android_graphics_Region(JNIEnv* env);
126 extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
127 extern int register_android_graphics_Xfermode(JNIEnv* env);
128 extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
129 extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
130 extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
131 extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
132 extern int register_android_view_RenderNode(JNIEnv* env);
133 extern int register_android_view_RenderNodeAnimator(JNIEnv* env);
134 extern int register_android_view_GraphicBuffer(JNIEnv* env);
135 extern int register_android_view_GLES20Canvas(JNIEnv* env);
136 extern int register_android_view_HardwareLayer(JNIEnv* env);
137 extern int register_android_view_ThreadedRenderer(JNIEnv* env);
138 extern int register_android_view_Surface(JNIEnv* env);
139 extern int register_android_view_SurfaceControl(JNIEnv* env);
140 extern int register_android_view_SurfaceSession(JNIEnv* env);
141 extern int register_android_view_TextureView(JNIEnv* env);
142 extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env);
143 extern int register_android_database_CursorWindow(JNIEnv* env);
144 extern int register_android_database_SQLiteConnection(JNIEnv* env);
145 extern int register_android_database_SQLiteGlobal(JNIEnv* env);
146 extern int register_android_database_SQLiteDebug(JNIEnv* env);
147 extern int register_android_nio_utils(JNIEnv* env);
148 extern int register_android_os_Debug(JNIEnv* env);
149 extern int register_android_os_MessageQueue(JNIEnv* env);
150 extern int register_android_os_Parcel(JNIEnv* env);
151 extern int register_android_os_SELinux(JNIEnv* env);
152 extern int register_android_os_SystemProperties(JNIEnv *env);
153 extern int register_android_os_SystemClock(JNIEnv* env);
154 extern int register_android_os_Trace(JNIEnv* env);
155 extern int register_android_os_FileObserver(JNIEnv *env);
156 extern int register_android_os_UEventObserver(JNIEnv* env);
157 extern int register_android_os_MemoryFile(JNIEnv* env);
158 extern int register_android_net_LocalSocketImpl(JNIEnv* env);
159 extern int register_android_net_NetworkUtils(JNIEnv* env);
160 extern int register_android_net_TrafficStats(JNIEnv* env);
161 extern int register_android_text_AndroidCharacter(JNIEnv *env);
162 extern int register_android_text_StaticLayout(JNIEnv *env);
163 extern int register_android_text_AndroidBidi(JNIEnv *env);
164 extern int register_android_opengl_classes(JNIEnv *env);
165 extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
166 extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
167 extern int register_com_android_internal_os_ZygoteInit(JNIEnv* env);
168 extern int register_android_backup_BackupDataInput(JNIEnv *env);
169 extern int register_android_backup_BackupDataOutput(JNIEnv *env);
170 extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
171 extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
172 extern int register_android_app_backup_FullBackup(JNIEnv *env);
173 extern int register_android_app_ActivityThread(JNIEnv *env);
174 extern int register_android_app_NativeActivity(JNIEnv *env);
175 extern int register_android_media_RemoteDisplay(JNIEnv *env);
176 extern int register_android_view_InputChannel(JNIEnv* env);
177 extern int register_android_view_InputDevice(JNIEnv* env);
178 extern int register_android_view_InputEventReceiver(JNIEnv* env);
179 extern int register_android_view_InputEventSender(JNIEnv* env);
180 extern int register_android_view_InputQueue(JNIEnv* env);
181 extern int register_android_view_KeyCharacterMap(JNIEnv *env);
182 extern int register_android_view_KeyEvent(JNIEnv* env);
183 extern int register_android_view_MotionEvent(JNIEnv* env);
184 extern int register_android_view_PointerIcon(JNIEnv* env);
185 extern int register_android_view_VelocityTracker(JNIEnv* env);
186 extern int register_android_content_res_ObbScanner(JNIEnv* env);
187 extern int register_android_content_res_Configuration(JNIEnv* env);
188 extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
189 extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
190 extern int register_com_android_internal_net_NetworkStatsFactory(JNIEnv *env);
191 extern int register_com_android_internal_os_Zygote(JNIEnv *env);
192 extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
193
194 static AndroidRuntime* gCurRuntime = NULL;
195
doThrow(JNIEnv * env,const char * exc,const char * msg=NULL)196 static void doThrow(JNIEnv* env, const char* exc, const char* msg = NULL)
197 {
198 if (jniThrowException(env, exc, msg) != 0)
199 assert(false);
200 }
201
202 /*
203 * Code written in the Java Programming Language calls here from main().
204 */
com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv * env,jobject clazz)205 static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
206 {
207 gCurRuntime->onStarted();
208 }
209
com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv * env,jobject clazz)210 static void com_android_internal_os_RuntimeInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
211 {
212 gCurRuntime->onZygoteInit();
213 }
214
com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv * env,jobject clazz,jboolean exitWithoutCleanup)215 static 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 */
224 static 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
register_com_android_internal_os_RuntimeInit(JNIEnv * env)233 int 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
AndroidRuntime(char * argBlockStart,const size_t argBlockLength)243 AndroidRuntime::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 in code
250 // see SkFontHost_android.cpp
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
~AndroidRuntime()259 AndroidRuntime::~AndroidRuntime()
260 {
261 SkGraphics::Term();
262 }
263
264 /*
265 * Register native methods using JNI.
266 */
registerNativeMethods(JNIEnv * env,const char * className,const JNINativeMethod * gMethods,int numMethods)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
setArgv0(const char * argv0)273 void AndroidRuntime::setArgv0(const char* argv0) {
274 memset(mArgBlockStart, 0, mArgBlockLength);
275 strlcpy(mArgBlockStart, argv0, mArgBlockLength);
276 }
277
callMain(const String8 & className,jclass clazz,const Vector<String8> & args)278 status_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 */
runtime_exit(int code)320 static 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 */
runtime_vfprintf(FILE * fp,const char * format,va_list ap)330 static 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 */
runtime_isSensitiveThread()344 static bool runtime_isSensitiveThread() {
345 IPCThreadState* state = IPCThreadState::selfOrNull();
346 return state && state->getStrictModePolicy() != 0;
347 }
348
hasDir(const char * dir)349 static 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
hasFile(const char * file)359 static 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 /*
369 * Read the persistent locale.
370 */
readLocale(char * language,char * region)371 static void readLocale(char* language, char* region)
372 {
373 char propLang[PROPERTY_VALUE_MAX], propRegn[PROPERTY_VALUE_MAX];
374
375 property_get("persist.sys.language", propLang, "");
376 property_get("persist.sys.country", propRegn, "");
377 if (*propLang == 0 && *propRegn == 0) {
378 /* Set to ro properties, default is en_US */
379 property_get("ro.product.locale.language", propLang, "en");
380 property_get("ro.product.locale.region", propRegn, "US");
381 }
382 strncat(language, propLang, 3);
383 strncat(region, propRegn, 3);
384 //ALOGD("language=%s region=%s\n", language, region);
385 }
386
addOption(const char * optionString,void * extraInfo)387 void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
388 {
389 JavaVMOption opt;
390 opt.optionString = optionString;
391 opt.extraInfo = extraInfo;
392 mOptions.add(opt);
393 }
394
395 /*
396 * Parse a property containing space-separated options that should be
397 * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
398 *
399 * This will cut up "extraOptsBuf" as we chop it into individual options.
400 *
401 * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
402 *
403 * Adds the strings, if any, to mOptions.
404 */
parseExtraOpts(char * extraOptsBuf,const char * quotingArg)405 void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
406 {
407 char* start = extraOptsBuf;
408 char* end = NULL;
409 while (*start != '\0') {
410 while (*start == ' ') /* skip leading whitespace */
411 start++;
412 if (*start == '\0') /* was trailing ws, bail */
413 break;
414
415 end = start+1;
416 while (*end != ' ' && *end != '\0') /* find end of token */
417 end++;
418 if (*end == ' ')
419 *end++ = '\0'; /* mark end, advance to indicate more */
420
421 if (quotingArg != NULL) {
422 addOption(quotingArg);
423 }
424 addOption(start);
425 start = end;
426 }
427 }
428
429 /*
430 * Reads a "property" into "buffer" with a default of "defaultArg". If
431 * the property is non-empty, it is treated as a runtime option such
432 * as "-Xmx32m".
433 *
434 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
435 *
436 * If an argument is found, it is added to mOptions.
437 *
438 * If an option is found, it is added to mOptions and true is
439 * returned. Otherwise false is returned.
440 */
parseRuntimeOption(const char * property,char * buffer,const char * runtimeArg,const char * defaultArg)441 bool AndroidRuntime::parseRuntimeOption(const char* property,
442 char* buffer,
443 const char* runtimeArg,
444 const char* defaultArg)
445 {
446 strcpy(buffer, runtimeArg);
447 size_t runtimeArgLen = strlen(runtimeArg);
448 property_get(property, buffer+runtimeArgLen, defaultArg);
449 if (buffer[runtimeArgLen] == '\0') {
450 return false;
451 }
452 addOption(buffer);
453 return true;
454 }
455
456 /*
457 * Reads a "property" into "buffer". If the property is non-empty, it
458 * is treated as a dex2oat compiler option that should be
459 * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=verify-none".
460 *
461 * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
462 *
463 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
464 *
465 * If an option is found, it is added to mOptions and true is
466 * returned. Otherwise false is returned.
467 */
parseCompilerOption(const char * property,char * buffer,const char * compilerArg,const char * quotingArg)468 bool AndroidRuntime::parseCompilerOption(const char* property,
469 char* buffer,
470 const char* compilerArg,
471 const char* quotingArg)
472 {
473 strcpy(buffer, compilerArg);
474 size_t compilerArgLen = strlen(compilerArg);
475 property_get(property, buffer+compilerArgLen, "");
476 if (buffer[compilerArgLen] == '\0') {
477 return false;
478 }
479 addOption(quotingArg);
480 addOption(buffer);
481 return true;
482 }
483
484 /*
485 * Reads a "property" into "buffer". If the property is non-empty, it
486 * is treated as a dex2oat compiler runtime option that should be
487 * passed as a quoted option, e.g. "-Ximage-compiler-option
488 * --runtime-arg -Ximage-compiler-option -Xmx32m".
489 *
490 * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
491 *
492 * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
493 *
494 * If an option is found, it is added to mOptions and true is
495 * returned. Otherwise false is returned.
496 */
parseCompilerRuntimeOption(const char * property,char * buffer,const char * runtimeArg,const char * quotingArg)497 bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
498 char* buffer,
499 const char* runtimeArg,
500 const char* quotingArg)
501 {
502 strcpy(buffer, runtimeArg);
503 size_t runtimeArgLen = strlen(runtimeArg);
504 property_get(property, buffer+runtimeArgLen, "");
505 if (buffer[runtimeArgLen] == '\0') {
506 return false;
507 }
508 addOption(quotingArg);
509 addOption("--runtime-arg");
510 addOption(quotingArg);
511 addOption(buffer);
512 return true;
513 }
514
515 /*
516 * Start the Dalvik Virtual Machine.
517 *
518 * Various arguments, most determined by system properties, are passed in.
519 * The "mOptions" vector is updated.
520 *
521 * CAUTION: when adding options in here, be careful not to put the
522 * char buffer inside a nested scope. Adding the buffer to the
523 * options using mOptions.add() does not copy the buffer, so if the
524 * buffer goes out of scope the option may be overwritten. It's best
525 * to put the buffer at the top of the function so that it is more
526 * unlikely that someone will surround it in a scope at a later time
527 * and thus introduce a bug.
528 *
529 * Returns 0 on success.
530 */
startVm(JavaVM ** pJavaVM,JNIEnv ** pEnv,bool zygote)531 int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
532 {
533 int result = -1;
534 JavaVMInitArgs initArgs;
535 char propBuf[PROPERTY_VALUE_MAX];
536 char stackTraceFileBuf[sizeof("-Xstacktracefile:")-1 + PROPERTY_VALUE_MAX];
537 char dexoptFlagsBuf[PROPERTY_VALUE_MAX];
538 char enableAssertBuf[sizeof("-ea:")-1 + PROPERTY_VALUE_MAX];
539 char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
540 char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
541 char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
542 char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
543 char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
544 char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
545 char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
546 char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
547 char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
548 char jitcodecachesizeOptsBuf[sizeof("-Xjitcodecachesize:")-1 + PROPERTY_VALUE_MAX];
549 char dalvikVmLibBuf[PROPERTY_VALUE_MAX];
550 char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
551 char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
552 char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
553 char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
554 char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
555 char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
556 char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
557 char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
558 char extraOptsBuf[PROPERTY_VALUE_MAX];
559 char voldDecryptBuf[PROPERTY_VALUE_MAX];
560 enum {
561 kEMDefault,
562 kEMIntPortable,
563 kEMIntFast,
564 kEMJitCompiler,
565 } executionMode = kEMDefault;
566 char profilePeriod[sizeof("-Xprofile-period:")-1 + PROPERTY_VALUE_MAX];
567 char profileDuration[sizeof("-Xprofile-duration:")-1 + PROPERTY_VALUE_MAX];
568 char profileInterval[sizeof("-Xprofile-interval:")-1 + PROPERTY_VALUE_MAX];
569 char profileBackoff[sizeof("-Xprofile-backoff:")-1 + PROPERTY_VALUE_MAX];
570 char profileTopKThreshold[sizeof("-Xprofile-top-k-threshold:")-1 + PROPERTY_VALUE_MAX];
571 char profileTopKChangeThreshold[sizeof("-Xprofile-top-k-change-threshold:")-1 +
572 PROPERTY_VALUE_MAX];
573 char profileType[sizeof("-Xprofile-type:")-1 + PROPERTY_VALUE_MAX];
574 char profileMaxStackDepth[sizeof("-Xprofile-max-stack-depth:")-1 + PROPERTY_VALUE_MAX];
575 char langOption[sizeof("-Duser.language=") + 3];
576 char regionOption[sizeof("-Duser.region=") + 3];
577 char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
578 char jitOpBuf[sizeof("-Xjitop:")-1 + PROPERTY_VALUE_MAX];
579 char jitMethodBuf[sizeof("-Xjitmethod:")-1 + PROPERTY_VALUE_MAX];
580 char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
581
582 bool checkJni = false;
583 property_get("dalvik.vm.checkjni", propBuf, "");
584 if (strcmp(propBuf, "true") == 0) {
585 checkJni = true;
586 } else if (strcmp(propBuf, "false") != 0) {
587 /* property is neither true nor false; fall back on kernel parameter */
588 property_get("ro.kernel.android.checkjni", propBuf, "");
589 if (propBuf[0] == '1') {
590 checkJni = true;
591 }
592 }
593 ALOGD("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
594 if (checkJni) {
595 /* extended JNI checking */
596 addOption("-Xcheck:jni");
597
598 /* set a cap on JNI global references */
599 addOption("-Xjnigreflimit:2000");
600
601 /* with -Xcheck:jni, this provides a JNI function call trace */
602 //addOption("-verbose:jni");
603 }
604
605 property_get("dalvik.vm.execution-mode", propBuf, "");
606 if (strcmp(propBuf, "int:portable") == 0) {
607 executionMode = kEMIntPortable;
608 } else if (strcmp(propBuf, "int:fast") == 0) {
609 executionMode = kEMIntFast;
610 } else if (strcmp(propBuf, "int:jit") == 0) {
611 executionMode = kEMJitCompiler;
612 }
613
614 parseRuntimeOption("dalvik.vm.stack-trace-file", stackTraceFileBuf, "-Xstacktracefile:");
615
616 property_get("dalvik.vm.check-dex-sum", propBuf, "");
617 if (strcmp(propBuf, "true") == 0) {
618 /* perform additional DEX checksum tests */
619 addOption("-Xcheckdexsum");
620 }
621
622 property_get("log.redirect-stdio", propBuf, "");
623 if (strcmp(propBuf, "true") == 0) {
624 /* convert stdout/stderr to log messages */
625 addOption("-Xlog-stdio");
626 }
627
628 strcpy(enableAssertBuf, "-ea:");
629 property_get("dalvik.vm.enableassertions", enableAssertBuf+sizeof("-ea:")-1, "");
630 if (enableAssertBuf[sizeof("-ea:")-1] != '\0') {
631 /* accept "all" to mean "all classes and packages" */
632 if (strcmp(enableAssertBuf+sizeof("-ea:")-1, "all") == 0)
633 enableAssertBuf[3] = '\0'; // truncate to "-ea"
634 ALOGI("Assertions enabled: '%s'\n", enableAssertBuf);
635 addOption(enableAssertBuf);
636 } else {
637 ALOGV("Assertions disabled\n");
638 }
639
640 strcpy(jniOptsBuf, "-Xjniopts:");
641 if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
642 ALOGI("JNI options: '%s'\n", jniOptsBuf);
643 }
644
645 /* route exit() to our handler */
646 addOption("exit", (void*) runtime_exit);
647
648 /* route fprintf() to our handler */
649 addOption("vfprintf", (void*) runtime_vfprintf);
650
651 /* register the framework-specific "is sensitive thread" hook */
652 addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
653
654 /* enable verbose; standard options are { jni, gc, class } */
655 //addOption("-verbose:jni");
656 addOption("-verbose:gc");
657 //addOption("-verbose:class");
658
659 /*
660 * The default starting and maximum size of the heap. Larger
661 * values should be specified in a product property override.
662 */
663 parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
664 parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
665
666 // Increase the main thread's interpreter stack size for bug 6315322.
667 addOption("-XX:mainThreadStackSize=24K");
668
669 // Set the max jit code cache size. Note: size of 0 will disable the JIT.
670 parseRuntimeOption("dalvik.vm.jit.codecachesize",
671 jitcodecachesizeOptsBuf,
672 "-Xjitcodecachesize:");
673
674 parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
675 parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
676 parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
677 parseRuntimeOption("dalvik.vm.heaptargetutilization",
678 heaptargetutilizationOptsBuf,
679 "-XX:HeapTargetUtilization=");
680
681 property_get("ro.config.low_ram", propBuf, "");
682 if (strcmp(propBuf, "true") == 0) {
683 addOption("-XX:LowMemoryMode");
684 }
685
686 parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
687 parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
688
689 /*
690 * Enable or disable dexopt features, such as bytecode verification and
691 * calculation of register maps for precise GC.
692 */
693 property_get("dalvik.vm.dexopt-flags", dexoptFlagsBuf, "");
694 if (dexoptFlagsBuf[0] != '\0') {
695 const char* opc;
696 const char* val;
697
698 opc = strstr(dexoptFlagsBuf, "v="); /* verification */
699 if (opc != NULL) {
700 switch (*(opc+2)) {
701 case 'n': val = "-Xverify:none"; break;
702 case 'r': val = "-Xverify:remote"; break;
703 case 'a': val = "-Xverify:all"; break;
704 default: val = NULL; break;
705 }
706
707 if (val != NULL) {
708 addOption(val);
709 }
710 }
711
712 opc = strstr(dexoptFlagsBuf, "o="); /* optimization */
713 if (opc != NULL) {
714 switch (*(opc+2)) {
715 case 'n': val = "-Xdexopt:none"; break;
716 case 'v': val = "-Xdexopt:verified"; break;
717 case 'a': val = "-Xdexopt:all"; break;
718 case 'f': val = "-Xdexopt:full"; break;
719 default: val = NULL; break;
720 }
721
722 if (val != NULL) {
723 addOption(val);
724 }
725 }
726
727 opc = strstr(dexoptFlagsBuf, "m=y"); /* register map */
728 if (opc != NULL) {
729 addOption("-Xgenregmap");
730
731 /* turn on precise GC while we're at it */
732 addOption("-Xgc:precise");
733 }
734 }
735
736 /*
737 * Enable debugging only for apps forked from zygote.
738 * Set suspend=y to pause during VM init and use android ADB transport.
739 */
740 if (zygote) {
741 addOption("-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y");
742 }
743
744 parseRuntimeOption("dalvik.vm.lockprof.threshold",
745 lockProfThresholdBuf,
746 "-Xlockprofthreshold:");
747
748 /* Force interpreter-only mode for selected opcodes. Eg "1-0a,3c,f1-ff" */
749 parseRuntimeOption("dalvik.vm.jit.op", jitOpBuf, "-Xjitop:");
750
751 /* Force interpreter-only mode for selected methods */
752 parseRuntimeOption("dalvik.vm.jit.method", jitMethodBuf, "-Xjitmethod:");
753
754 if (executionMode == kEMIntPortable) {
755 addOption("-Xint:portable");
756 } else if (executionMode == kEMIntFast) {
757 addOption("-Xint:fast");
758 } else if (executionMode == kEMJitCompiler) {
759 addOption("-Xint:jit");
760 }
761
762 // libart tolerates libdvm flags, but not vice versa, so only pass some options if libart.
763 property_get("persist.sys.dalvik.vm.lib.2", dalvikVmLibBuf, "libart.so");
764 bool libart = (strncmp(dalvikVmLibBuf, "libart", 6) == 0);
765
766 if (libart) {
767 // If we booting without the real /data, don't spend time compiling.
768 property_get("vold.decrypt", voldDecryptBuf, "");
769 bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
770 (strcmp(voldDecryptBuf, "1") == 0));
771
772 // Extra options for boot.art/boot.oat image generation.
773 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
774 "-Xms", "-Ximage-compiler-option");
775 parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
776 "-Xmx", "-Ximage-compiler-option");
777 if (skip_compilation) {
778 addOption("-Ximage-compiler-option");
779 addOption("--compiler-filter=verify-none");
780 } else {
781 parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
782 "--compiler-filter=", "-Ximage-compiler-option");
783 }
784
785 // Make sure there is a preloaded-classes file.
786 if (!hasFile("/system/etc/preloaded-classes")) {
787 ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
788 strerror(errno));
789 goto bail;
790 }
791 addOption("-Ximage-compiler-option");
792 addOption("--image-classes=/system/etc/preloaded-classes");
793
794 // If there is a compiled-classes file, push it.
795 if (hasFile("/system/etc/compiled-classes")) {
796 addOption("-Ximage-compiler-option");
797 addOption("--compiled-classes=/system/etc/compiled-classes");
798 }
799
800 property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
801 parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
802
803 // Extra options for DexClassLoader.
804 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
805 "-Xms", "-Xcompiler-option");
806 parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
807 "-Xmx", "-Xcompiler-option");
808 if (skip_compilation) {
809 addOption("-Xcompiler-option");
810 addOption("--compiler-filter=verify-none");
811 } else {
812 parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
813 "--compiler-filter=", "-Xcompiler-option");
814 }
815 property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
816 parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
817
818 }
819
820 /* extra options; parse this late so it overrides others */
821 property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
822 parseExtraOpts(extraOptsBuf, NULL);
823
824 /* Set the properties for locale */
825 {
826 strcpy(langOption, "-Duser.language=");
827 strcpy(regionOption, "-Duser.region=");
828 readLocale(langOption, regionOption);
829 addOption(langOption);
830 addOption(regionOption);
831 }
832
833 /*
834 * Set profiler options
835 */
836 if (libart) {
837 // Whether or not the profiler should be enabled.
838 property_get("dalvik.vm.profiler", propBuf, "0");
839 if (propBuf[0] == '1') {
840 addOption("-Xenable-profiler");
841 }
842
843 // Whether the profile should start upon app startup or be delayed by some random offset
844 // (in seconds) that is bound between 0 and a fixed value.
845 property_get("dalvik.vm.profile.start-immed", propBuf, "0");
846 if (propBuf[0] == '1') {
847 addOption("-Xprofile-start-immediately");
848 }
849
850 // Number of seconds during profile runs.
851 parseRuntimeOption("dalvik.vm.profile.period-secs", profilePeriod, "-Xprofile-period:");
852
853 // Length of each profile run (seconds).
854 parseRuntimeOption("dalvik.vm.profile.duration-secs",
855 profileDuration,
856 "-Xprofile-duration:");
857
858 // Polling interval during profile run (microseconds).
859 parseRuntimeOption("dalvik.vm.profile.interval-us", profileInterval, "-Xprofile-interval:");
860
861 // Coefficient for period backoff. The the period is multiplied
862 // by this value after each profile run.
863 parseRuntimeOption("dalvik.vm.profile.backoff-coeff", profileBackoff, "-Xprofile-backoff:");
864
865 // Top K% of samples that are considered relevant when
866 // deciding if the app should be recompiled.
867 parseRuntimeOption("dalvik.vm.profile.top-k-thr",
868 profileTopKThreshold,
869 "-Xprofile-top-k-threshold:");
870
871 // The threshold after which a change in the structure of the
872 // top K% profiled samples becomes significant and triggers
873 // recompilation. A change in profile is considered
874 // significant if X% (top-k-change-threshold) of the top K%
875 // (top-k-threshold property) samples has changed.
876 parseRuntimeOption("dalvik.vm.profile.top-k-ch-thr",
877 profileTopKChangeThreshold,
878 "-Xprofile-top-k-change-threshold:");
879
880 // Type of profile data.
881 parseRuntimeOption("dalvik.vm.profiler.type", profileType, "-Xprofile-type:");
882
883 // Depth of bounded stack data
884 parseRuntimeOption("dalvik.vm.profile.stack-depth",
885 profileMaxStackDepth,
886 "-Xprofile-max-stack-depth:");
887
888 // Native bridge library. "0" means that native bridge is disabled.
889 property_get("ro.dalvik.vm.native.bridge", propBuf, "");
890 if (propBuf[0] == '\0') {
891 ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
892 } else if (strcmp(propBuf, "0") != 0) {
893 snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
894 "-XX:NativeBridge=%s", propBuf);
895 addOption(nativeBridgeLibrary);
896 }
897 }
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 goto bail;
914 }
915
916 result = 0;
917
918 bail:
919 return result;
920 }
921
toSlashClassName(const char * className)922 char* AndroidRuntime::toSlashClassName(const char* className)
923 {
924 char* result = strdup(className);
925 for (char* cp = result; *cp != '\0'; cp++) {
926 if (*cp == '.') {
927 *cp = '/';
928 }
929 }
930 return result;
931 }
932
933 /** Create a Java string from an ASCII or Latin-1 string */
NewStringLatin1(JNIEnv * env,const char * bytes)934 jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
935 if (!bytes) return NULL;
936 int length = strlen(bytes);
937 jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
938 if (!buffer) return NULL;
939 jchar* chp = buffer;
940 for (int i = 0; i < length; i++) {
941 *chp++ = *bytes++;
942 }
943 return env->NewString(buffer, length);
944 }
945
946
947 /*
948 * Start the Android runtime. This involves starting the virtual machine
949 * and calling the "static void main(String[] args)" method in the class
950 * named by "className".
951 *
952 * Passes the main function two arguments, the class name and the specified
953 * options string.
954 */
start(const char * className,const Vector<String8> & options,bool zygote)955 void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
956 {
957 ALOGD(">>>>>> START %s uid %d <<<<<<\n",
958 className != NULL ? className : "(unknown)", getuid());
959
960 static const String8 startSystemServer("start-system-server");
961
962 /*
963 * 'startSystemServer == true' means runtime is obsolete and not run from
964 * init.rc anymore, so we print out the boot start event here.
965 */
966 for (size_t i = 0; i < options.size(); ++i) {
967 if (options[i] == startSystemServer) {
968 /* track our progress through the boot sequence */
969 const int LOG_BOOT_PROGRESS_START = 3000;
970 LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START, ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
971 }
972 }
973
974 const char* rootDir = getenv("ANDROID_ROOT");
975 if (rootDir == NULL) {
976 rootDir = "/system";
977 if (!hasDir("/system")) {
978 LOG_FATAL("No root directory specified, and /android does not exist.");
979 return;
980 }
981 setenv("ANDROID_ROOT", rootDir, 1);
982 }
983
984 //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
985 //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
986
987 /* start the virtual machine */
988 JniInvocation jni_invocation;
989 jni_invocation.Init(NULL);
990 JNIEnv* env;
991 if (startVm(&mJavaVM, &env, zygote) != 0) {
992 return;
993 }
994 onVmCreated(env);
995
996 /*
997 * Register android functions.
998 */
999 if (startReg(env) < 0) {
1000 ALOGE("Unable to register all android natives\n");
1001 return;
1002 }
1003
1004 /*
1005 * We want to call main() with a String array with arguments in it.
1006 * At present we have two arguments, the class name and an option string.
1007 * Create an array to hold them.
1008 */
1009 jclass stringClass;
1010 jobjectArray strArray;
1011 jstring classNameStr;
1012
1013 stringClass = env->FindClass("java/lang/String");
1014 assert(stringClass != NULL);
1015 strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1016 assert(strArray != NULL);
1017 classNameStr = env->NewStringUTF(className);
1018 assert(classNameStr != NULL);
1019 env->SetObjectArrayElement(strArray, 0, classNameStr);
1020
1021 for (size_t i = 0; i < options.size(); ++i) {
1022 jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1023 assert(optionsStr != NULL);
1024 env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1025 }
1026
1027 /*
1028 * Start VM. This thread becomes the main thread of the VM, and will
1029 * not return until the VM exits.
1030 */
1031 char* slashClassName = toSlashClassName(className);
1032 jclass startClass = env->FindClass(slashClassName);
1033 if (startClass == NULL) {
1034 ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1035 /* keep going */
1036 } else {
1037 jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1038 "([Ljava/lang/String;)V");
1039 if (startMeth == NULL) {
1040 ALOGE("JavaVM unable to find main() in '%s'\n", className);
1041 /* keep going */
1042 } else {
1043 env->CallStaticVoidMethod(startClass, startMeth, strArray);
1044
1045 #if 0
1046 if (env->ExceptionCheck())
1047 threadExitUncaughtException(env);
1048 #endif
1049 }
1050 }
1051 free(slashClassName);
1052
1053 ALOGD("Shutting down VM\n");
1054 if (mJavaVM->DetachCurrentThread() != JNI_OK)
1055 ALOGW("Warning: unable to detach main thread\n");
1056 if (mJavaVM->DestroyJavaVM() != 0)
1057 ALOGW("Warning: VM did not shut down cleanly\n");
1058 }
1059
exit(int code)1060 void AndroidRuntime::exit(int code)
1061 {
1062 if (mExitWithoutCleanup) {
1063 ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1064 ::_exit(code);
1065 } else {
1066 ALOGI("VM exiting with result code %d.", code);
1067 onExit(code);
1068 ::exit(code);
1069 }
1070 }
1071
onVmCreated(JNIEnv * env)1072 void AndroidRuntime::onVmCreated(JNIEnv* env)
1073 {
1074 // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1075 }
1076
1077 /*
1078 * Get the JNIEnv pointer for this thread.
1079 *
1080 * Returns NULL if the slot wasn't allocated or populated.
1081 */
getJNIEnv()1082 /*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1083 {
1084 JNIEnv* env;
1085 JavaVM* vm = AndroidRuntime::getJavaVM();
1086 assert(vm != NULL);
1087
1088 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1089 return NULL;
1090 return env;
1091 }
1092
1093 /*
1094 * Makes the current thread visible to the VM.
1095 *
1096 * The JNIEnv pointer returned is only valid for the current thread, and
1097 * thus must be tucked into thread-local storage.
1098 */
javaAttachThread(const char * threadName,JNIEnv ** pEnv)1099 static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1100 {
1101 JavaVMAttachArgs args;
1102 JavaVM* vm;
1103 jint result;
1104
1105 vm = AndroidRuntime::getJavaVM();
1106 assert(vm != NULL);
1107
1108 args.version = JNI_VERSION_1_4;
1109 args.name = (char*) threadName;
1110 args.group = NULL;
1111
1112 result = vm->AttachCurrentThread(pEnv, (void*) &args);
1113 if (result != JNI_OK)
1114 ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1115
1116 return result;
1117 }
1118
1119 /*
1120 * Detach the current thread from the set visible to the VM.
1121 */
javaDetachThread(void)1122 static int javaDetachThread(void)
1123 {
1124 JavaVM* vm;
1125 jint result;
1126
1127 vm = AndroidRuntime::getJavaVM();
1128 assert(vm != NULL);
1129
1130 result = vm->DetachCurrentThread();
1131 if (result != JNI_OK)
1132 ALOGE("ERROR: thread detach failed\n");
1133 return result;
1134 }
1135
1136 /*
1137 * When starting a native thread that will be visible from the VM, we
1138 * bounce through this to get the right attach/detach action.
1139 * Note that this function calls free(args)
1140 */
javaThreadShell(void * args)1141 /*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1142 void* start = ((void**)args)[0];
1143 void* userData = ((void **)args)[1];
1144 char* name = (char*) ((void **)args)[2]; // we own this storage
1145 free(args);
1146 JNIEnv* env;
1147 int result;
1148
1149 /* hook us into the VM */
1150 if (javaAttachThread(name, &env) != JNI_OK)
1151 return -1;
1152
1153 /* start the thread running */
1154 result = (*(android_thread_func_t)start)(userData);
1155
1156 /* unhook us */
1157 javaDetachThread();
1158 free(name);
1159
1160 return result;
1161 }
1162
1163 /*
1164 * This is invoked from androidCreateThreadEtc() via the callback
1165 * set with androidSetCreateThreadFunc().
1166 *
1167 * We need to create the new thread in such a way that it gets hooked
1168 * into the VM before it really starts executing.
1169 */
javaCreateThreadEtc(android_thread_func_t entryFunction,void * userData,const char * threadName,int32_t threadPriority,size_t threadStackSize,android_thread_id_t * threadId)1170 /*static*/ int AndroidRuntime::javaCreateThreadEtc(
1171 android_thread_func_t entryFunction,
1172 void* userData,
1173 const char* threadName,
1174 int32_t threadPriority,
1175 size_t threadStackSize,
1176 android_thread_id_t* threadId)
1177 {
1178 void** args = (void**) malloc(3 * sizeof(void*)); // javaThreadShell must free
1179 int result;
1180
1181 if (!threadName)
1182 threadName = "unnamed thread";
1183
1184 args[0] = (void*) entryFunction;
1185 args[1] = userData;
1186 args[2] = (void*) strdup(threadName); // javaThreadShell must free
1187
1188 result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1189 threadName, threadPriority, threadStackSize, threadId);
1190 return result;
1191 }
1192
1193 /*
1194 * Create a thread that is visible from the VM.
1195 *
1196 * This is called from elsewhere in the library.
1197 */
createJavaThread(const char * name,void (* start)(void *),void * arg)1198 /*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1199 void (*start)(void *), void* arg)
1200 {
1201 android_thread_id_t threadId = 0;
1202 javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1203 ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1204 return threadId;
1205 }
1206
1207 #if 0
1208 static void quickTest(void* arg)
1209 {
1210 const char* str = (const char*) arg;
1211
1212 printf("In quickTest: %s\n", str);
1213 }
1214 #endif
1215
1216 #ifdef NDEBUG
1217 #define REG_JNI(name) { name }
1218 struct RegJNIRec {
1219 int (*mProc)(JNIEnv*);
1220 };
1221 #else
1222 #define REG_JNI(name) { name, #name }
1223 struct RegJNIRec {
1224 int (*mProc)(JNIEnv*);
1225 const char* mName;
1226 };
1227 #endif
1228
1229 typedef void (*RegJAMProc)();
1230
register_jni_procs(const RegJNIRec array[],size_t count,JNIEnv * env)1231 static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1232 {
1233 for (size_t i = 0; i < count; i++) {
1234 if (array[i].mProc(env) < 0) {
1235 #ifndef NDEBUG
1236 ALOGD("----------!!! %s failed to load\n", array[i].mName);
1237 #endif
1238 return -1;
1239 }
1240 }
1241 return 0;
1242 }
1243
register_jam_procs(const RegJAMProc array[],size_t count)1244 static void register_jam_procs(const RegJAMProc array[], size_t count)
1245 {
1246 for (size_t i = 0; i < count; i++) {
1247 array[i]();
1248 }
1249 }
1250
1251 static const RegJNIRec gRegJNI[] = {
1252 REG_JNI(register_com_android_internal_os_RuntimeInit),
1253 REG_JNI(register_android_os_SystemClock),
1254 REG_JNI(register_android_util_EventLog),
1255 REG_JNI(register_android_util_Log),
1256 REG_JNI(register_android_util_FloatMath),
1257 REG_JNI(register_android_content_AssetManager),
1258 REG_JNI(register_android_content_StringBlock),
1259 REG_JNI(register_android_content_XmlBlock),
1260 REG_JNI(register_android_emoji_EmojiFactory),
1261 REG_JNI(register_android_text_AndroidCharacter),
1262 REG_JNI(register_android_text_StaticLayout),
1263 REG_JNI(register_android_text_AndroidBidi),
1264 REG_JNI(register_android_view_InputDevice),
1265 REG_JNI(register_android_view_KeyCharacterMap),
1266 REG_JNI(register_android_os_Process),
1267 REG_JNI(register_android_os_SystemProperties),
1268 REG_JNI(register_android_os_Binder),
1269 REG_JNI(register_android_os_Parcel),
1270 REG_JNI(register_android_nio_utils),
1271 REG_JNI(register_android_graphics_Graphics),
1272 REG_JNI(register_android_view_DisplayEventReceiver),
1273 REG_JNI(register_android_view_RenderNode),
1274 REG_JNI(register_android_view_RenderNodeAnimator),
1275 REG_JNI(register_android_view_GraphicBuffer),
1276 REG_JNI(register_android_view_GLES20Canvas),
1277 REG_JNI(register_android_view_HardwareLayer),
1278 REG_JNI(register_android_view_ThreadedRenderer),
1279 REG_JNI(register_android_view_Surface),
1280 REG_JNI(register_android_view_SurfaceControl),
1281 REG_JNI(register_android_view_SurfaceSession),
1282 REG_JNI(register_android_view_TextureView),
1283 REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1284 REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1285 REG_JNI(register_com_google_android_gles_jni_GLImpl),
1286 REG_JNI(register_android_opengl_jni_EGL14),
1287 REG_JNI(register_android_opengl_jni_EGLExt),
1288 REG_JNI(register_android_opengl_jni_GLES10),
1289 REG_JNI(register_android_opengl_jni_GLES10Ext),
1290 REG_JNI(register_android_opengl_jni_GLES11),
1291 REG_JNI(register_android_opengl_jni_GLES11Ext),
1292 REG_JNI(register_android_opengl_jni_GLES20),
1293 REG_JNI(register_android_opengl_jni_GLES30),
1294 REG_JNI(register_android_opengl_jni_GLES31),
1295 REG_JNI(register_android_opengl_jni_GLES31Ext),
1296
1297 REG_JNI(register_android_graphics_Bitmap),
1298 REG_JNI(register_android_graphics_BitmapFactory),
1299 REG_JNI(register_android_graphics_BitmapRegionDecoder),
1300 REG_JNI(register_android_graphics_Camera),
1301 REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1302 REG_JNI(register_android_graphics_Canvas),
1303 REG_JNI(register_android_graphics_CanvasProperty),
1304 REG_JNI(register_android_graphics_ColorFilter),
1305 REG_JNI(register_android_graphics_DrawFilter),
1306 REG_JNI(register_android_graphics_FontFamily),
1307 REG_JNI(register_android_graphics_Interpolator),
1308 REG_JNI(register_android_graphics_LayerRasterizer),
1309 REG_JNI(register_android_graphics_MaskFilter),
1310 REG_JNI(register_android_graphics_Matrix),
1311 REG_JNI(register_android_graphics_Movie),
1312 REG_JNI(register_android_graphics_NinePatch),
1313 REG_JNI(register_android_graphics_Paint),
1314 REG_JNI(register_android_graphics_Path),
1315 REG_JNI(register_android_graphics_PathMeasure),
1316 REG_JNI(register_android_graphics_PathEffect),
1317 REG_JNI(register_android_graphics_Picture),
1318 REG_JNI(register_android_graphics_PorterDuff),
1319 REG_JNI(register_android_graphics_Rasterizer),
1320 REG_JNI(register_android_graphics_Region),
1321 REG_JNI(register_android_graphics_Shader),
1322 REG_JNI(register_android_graphics_SurfaceTexture),
1323 REG_JNI(register_android_graphics_Typeface),
1324 REG_JNI(register_android_graphics_Xfermode),
1325 REG_JNI(register_android_graphics_YuvImage),
1326 REG_JNI(register_android_graphics_pdf_PdfDocument),
1327 REG_JNI(register_android_graphics_pdf_PdfEditor),
1328 REG_JNI(register_android_graphics_pdf_PdfRenderer),
1329
1330 REG_JNI(register_android_database_CursorWindow),
1331 REG_JNI(register_android_database_SQLiteConnection),
1332 REG_JNI(register_android_database_SQLiteGlobal),
1333 REG_JNI(register_android_database_SQLiteDebug),
1334 REG_JNI(register_android_os_Debug),
1335 REG_JNI(register_android_os_FileObserver),
1336 REG_JNI(register_android_os_MessageQueue),
1337 REG_JNI(register_android_os_SELinux),
1338 REG_JNI(register_android_os_Trace),
1339 REG_JNI(register_android_os_UEventObserver),
1340 REG_JNI(register_android_net_LocalSocketImpl),
1341 REG_JNI(register_android_net_NetworkUtils),
1342 REG_JNI(register_android_net_TrafficStats),
1343 REG_JNI(register_android_os_MemoryFile),
1344 REG_JNI(register_com_android_internal_os_ZygoteInit),
1345 REG_JNI(register_com_android_internal_os_Zygote),
1346 REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1347 REG_JNI(register_android_hardware_Camera),
1348 REG_JNI(register_android_hardware_camera2_CameraMetadata),
1349 REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1350 REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1351 REG_JNI(register_android_hardware_camera2_DngCreator),
1352 REG_JNI(register_android_hardware_SensorManager),
1353 REG_JNI(register_android_hardware_SerialPort),
1354 REG_JNI(register_android_hardware_SoundTrigger),
1355 REG_JNI(register_android_hardware_UsbDevice),
1356 REG_JNI(register_android_hardware_UsbDeviceConnection),
1357 REG_JNI(register_android_hardware_UsbRequest),
1358 REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1359 REG_JNI(register_android_media_AudioRecord),
1360 REG_JNI(register_android_media_AudioSystem),
1361 REG_JNI(register_android_media_AudioTrack),
1362 REG_JNI(register_android_media_JetPlayer),
1363 REG_JNI(register_android_media_RemoteDisplay),
1364 REG_JNI(register_android_media_ToneGenerator),
1365
1366 REG_JNI(register_android_opengl_classes),
1367 REG_JNI(register_android_server_NetworkManagementSocketTagger),
1368 REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1369 REG_JNI(register_android_backup_BackupDataInput),
1370 REG_JNI(register_android_backup_BackupDataOutput),
1371 REG_JNI(register_android_backup_FileBackupHelperBase),
1372 REG_JNI(register_android_backup_BackupHelperDispatcher),
1373 REG_JNI(register_android_app_backup_FullBackup),
1374 REG_JNI(register_android_app_ActivityThread),
1375 REG_JNI(register_android_app_NativeActivity),
1376 REG_JNI(register_android_view_InputChannel),
1377 REG_JNI(register_android_view_InputEventReceiver),
1378 REG_JNI(register_android_view_InputEventSender),
1379 REG_JNI(register_android_view_InputQueue),
1380 REG_JNI(register_android_view_KeyEvent),
1381 REG_JNI(register_android_view_MotionEvent),
1382 REG_JNI(register_android_view_PointerIcon),
1383 REG_JNI(register_android_view_VelocityTracker),
1384
1385 REG_JNI(register_android_content_res_ObbScanner),
1386 REG_JNI(register_android_content_res_Configuration),
1387
1388 REG_JNI(register_android_animation_PropertyValuesHolder),
1389 REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1390 REG_JNI(register_com_android_internal_net_NetworkStatsFactory),
1391 };
1392
1393 /*
1394 * Register android native functions with the VM.
1395 */
startReg(JNIEnv * env)1396 /*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1397 {
1398 /*
1399 * This hook causes all future threads created in this process to be
1400 * attached to the JavaVM. (This needs to go away in favor of JNI
1401 * Attach calls.)
1402 */
1403 androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1404
1405 ALOGV("--- registering native functions ---\n");
1406
1407 /*
1408 * Every "register" function calls one or more things that return
1409 * a local reference (e.g. FindClass). Because we haven't really
1410 * started the VM yet, they're all getting stored in the base frame
1411 * and never released. Use Push/Pop to manage the storage.
1412 */
1413 env->PushLocalFrame(200);
1414
1415 if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1416 env->PopLocalFrame(NULL);
1417 return -1;
1418 }
1419 env->PopLocalFrame(NULL);
1420
1421 //createJavaThread("fubar", quickTest, (void*) "hello");
1422
1423 return 0;
1424 }
1425
getRuntime()1426 AndroidRuntime* AndroidRuntime::getRuntime()
1427 {
1428 return gCurRuntime;
1429 }
1430
1431 /**
1432 * Used by WithFramework to register native functions.
1433 */
1434 extern "C"
Java_com_android_internal_util_WithFramework_registerNatives(JNIEnv * env,jclass clazz)1435 jint Java_com_android_internal_util_WithFramework_registerNatives(
1436 JNIEnv* env, jclass clazz) {
1437 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1438 }
1439
1440 /**
1441 * Used by LoadClass to register native functions.
1442 */
1443 extern "C"
Java_LoadClass_registerNatives(JNIEnv * env,jclass clazz)1444 jint Java_LoadClass_registerNatives(JNIEnv* env, jclass clazz) {
1445 return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1446 }
1447
1448 } // namespace android
1449