1 /*
2  * Copyright (C) 2006 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #define ATRACE_TAG ATRACE_TAG_DALVIK
18 #define LOG_TAG "AndroidRuntime"
19 #define LOG_NDEBUG 1
20 
21 #include <android_runtime/AndroidRuntime.h>
22 
23 #include <android-base/macros.h>
24 #include <android-base/properties.h>
25 #include <binder/IBinder.h>
26 #include <binder/IPCThreadState.h>
27 #include <binder/IServiceManager.h>
28 #include <utils/Log.h>
29 #include <utils/misc.h>
30 #include <utils/Trace.h>
31 #include <binder/Parcel.h>
32 #include <utils/threads.h>
33 #include <cutils/properties.h>
34 #include <server_configurable_flags/get_flags.h>
35 
36 #include <SkGraphics.h>
37 
38 #include "jni.h"
39 #include <nativehelper/JNIHelp.h>
40 #include <nativehelper/JniInvocation.h>
41 #include "android_util_Binder.h"
42 
43 #include <stdio.h>
44 #include <signal.h>
45 #include <sys/stat.h>
46 #include <sys/types.h>
47 #include <signal.h>
48 #include <dirent.h>
49 #include <assert.h>
50 
51 #include <string>
52 #include <vector>
53 
54 using namespace android;
55 using android::base::GetProperty;
56 
57 extern int register_android_os_Binder(JNIEnv* env);
58 extern int register_android_os_Process(JNIEnv* env);
59 extern int register_android_graphics_Bitmap(JNIEnv*);
60 extern int register_android_graphics_BitmapFactory(JNIEnv*);
61 extern int register_android_graphics_BitmapRegionDecoder(JNIEnv*);
62 extern int register_android_graphics_ByteBufferStreamAdaptor(JNIEnv* env);
63 extern int register_android_graphics_Camera(JNIEnv* env);
64 extern int register_android_graphics_CreateJavaOutputStreamAdaptor(JNIEnv* env);
65 extern int register_android_graphics_GraphicBuffer(JNIEnv* env);
66 extern int register_android_graphics_Graphics(JNIEnv* env);
67 extern int register_android_graphics_ImageDecoder(JNIEnv*);
68 extern int register_android_graphics_drawable_AnimatedImageDrawable(JNIEnv*);
69 extern int register_android_graphics_Interpolator(JNIEnv* env);
70 extern int register_android_graphics_MaskFilter(JNIEnv* env);
71 extern int register_android_graphics_Movie(JNIEnv* env);
72 extern int register_android_graphics_NinePatch(JNIEnv*);
73 extern int register_android_graphics_PathEffect(JNIEnv* env);
74 extern int register_android_graphics_Shader(JNIEnv* env);
75 extern int register_android_graphics_Typeface(JNIEnv* env);
76 extern int register_android_graphics_YuvImage(JNIEnv* env);
77 
78 extern int register_com_google_android_gles_jni_EGLImpl(JNIEnv* env);
79 extern int register_com_google_android_gles_jni_GLImpl(JNIEnv* env);
80 extern int register_android_opengl_jni_EGL14(JNIEnv* env);
81 extern int register_android_opengl_jni_EGL15(JNIEnv* env);
82 extern int register_android_opengl_jni_EGLExt(JNIEnv* env);
83 extern int register_android_opengl_jni_GLES10(JNIEnv* env);
84 extern int register_android_opengl_jni_GLES10Ext(JNIEnv* env);
85 extern int register_android_opengl_jni_GLES11(JNIEnv* env);
86 extern int register_android_opengl_jni_GLES11Ext(JNIEnv* env);
87 extern int register_android_opengl_jni_GLES20(JNIEnv* env);
88 extern int register_android_opengl_jni_GLES30(JNIEnv* env);
89 extern int register_android_opengl_jni_GLES31(JNIEnv* env);
90 extern int register_android_opengl_jni_GLES31Ext(JNIEnv* env);
91 extern int register_android_opengl_jni_GLES32(JNIEnv* env);
92 
93 extern int register_android_hardware_Camera(JNIEnv *env);
94 extern int register_android_hardware_camera2_CameraMetadata(JNIEnv *env);
95 extern int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv *env);
96 extern int register_android_hardware_camera2_legacy_PerfMeasurement(JNIEnv *env);
97 extern int register_android_hardware_camera2_DngCreator(JNIEnv *env);
98 extern int register_android_hardware_HardwareBuffer(JNIEnv *env);
99 extern int register_android_hardware_SensorManager(JNIEnv *env);
100 extern int register_android_hardware_SerialPort(JNIEnv *env);
101 extern int register_android_hardware_SoundTrigger(JNIEnv *env);
102 extern int register_android_hardware_UsbDevice(JNIEnv *env);
103 extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
104 extern int register_android_hardware_UsbRequest(JNIEnv *env);
105 extern int register_android_hardware_location_ActivityRecognitionHardware(JNIEnv* env);
106 
107 extern int register_android_media_AudioEffectDescriptor(JNIEnv *env);
108 extern int register_android_media_AudioRecord(JNIEnv *env);
109 extern int register_android_media_AudioSystem(JNIEnv *env);
110 extern int register_android_media_AudioTrack(JNIEnv *env);
111 extern int register_android_media_AudioAttributes(JNIEnv *env);
112 extern int register_android_media_AudioProductStrategies(JNIEnv *env);
113 extern int register_android_media_AudioVolumeGroups(JNIEnv *env);
114 extern int register_android_media_AudioVolumeGroupChangeHandler(JNIEnv *env);
115 extern int register_android_media_MicrophoneInfo(JNIEnv *env);
116 extern int register_android_media_JetPlayer(JNIEnv *env);
117 extern int register_android_media_ToneGenerator(JNIEnv *env);
118 extern int register_android_media_midi(JNIEnv *env);
119 
120 namespace android {
121 
122 /*
123  * JNI-based registration functions.  Note these are properly contained in
124  * namespace android.
125  */
126 extern int register_android_app_admin_SecurityLog(JNIEnv* env);
127 extern int register_android_content_AssetManager(JNIEnv* env);
128 extern int register_android_util_EventLog(JNIEnv* env);
129 extern int register_android_util_StatsLog(JNIEnv* env);
130 extern int register_android_util_StatsLogInternal(JNIEnv* env);
131 extern int register_android_util_Log(JNIEnv* env);
132 extern int register_android_util_MemoryIntArray(JNIEnv* env);
133 extern int register_android_util_PathParser(JNIEnv* env);
134 extern int register_android_content_StringBlock(JNIEnv* env);
135 extern int register_android_content_XmlBlock(JNIEnv* env);
136 extern int register_android_content_res_ApkAssets(JNIEnv* env);
137 extern int register_android_graphics_Canvas(JNIEnv* env);
138 extern int register_android_graphics_CanvasProperty(JNIEnv* env);
139 extern int register_android_graphics_ColorFilter(JNIEnv* env);
140 extern int register_android_graphics_ColorSpace(JNIEnv* env);
141 extern int register_android_graphics_DrawFilter(JNIEnv* env);
142 extern int register_android_graphics_FontFamily(JNIEnv* env);
143 extern int register_android_graphics_Matrix(JNIEnv* env);
144 extern int register_android_graphics_Paint(JNIEnv* env);
145 extern int register_android_graphics_Path(JNIEnv* env);
146 extern int register_android_graphics_PathMeasure(JNIEnv* env);
147 extern int register_android_graphics_Picture(JNIEnv*);
148 extern int register_android_graphics_Region(JNIEnv* env);
149 extern int register_android_graphics_SurfaceTexture(JNIEnv* env);
150 extern int register_android_graphics_drawable_AnimatedVectorDrawable(JNIEnv* env);
151 extern int register_android_graphics_drawable_VectorDrawable(JNIEnv* env);
152 extern int register_android_graphics_fonts_Font(JNIEnv* env);
153 extern int register_android_graphics_fonts_FontFamily(JNIEnv* env);
154 extern int register_android_graphics_pdf_PdfDocument(JNIEnv* env);
155 extern int register_android_graphics_pdf_PdfEditor(JNIEnv* env);
156 extern int register_android_graphics_pdf_PdfRenderer(JNIEnv* env);
157 extern int register_android_graphics_text_MeasuredText(JNIEnv* env);
158 extern int register_android_graphics_text_LineBreaker(JNIEnv *env);
159 extern int register_android_view_DisplayEventReceiver(JNIEnv* env);
160 extern int register_android_view_DisplayListCanvas(JNIEnv* env);
161 extern int register_android_view_InputApplicationHandle(JNIEnv* env);
162 extern int register_android_view_InputWindowHandle(JNIEnv* env);
163 extern int register_android_view_TextureLayer(JNIEnv* env);
164 extern int register_android_view_RenderNode(JNIEnv* env);
165 extern int register_android_view_RenderNodeAnimator(JNIEnv* env);
166 extern int register_android_view_Surface(JNIEnv* env);
167 extern int register_android_view_SurfaceControl(JNIEnv* env);
168 extern int register_android_view_SurfaceSession(JNIEnv* env);
169 extern int register_android_view_CompositionSamplingListener(JNIEnv* env);
170 extern int register_android_view_TextureView(JNIEnv* env);
171 extern int register_android_view_ThreadedRenderer(JNIEnv* env);
172 extern int register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper(JNIEnv *env);
173 extern int register_android_database_CursorWindow(JNIEnv* env);
174 extern int register_android_database_SQLiteConnection(JNIEnv* env);
175 extern int register_android_database_SQLiteGlobal(JNIEnv* env);
176 extern int register_android_database_SQLiteDebug(JNIEnv* env);
177 extern int register_android_os_Debug(JNIEnv* env);
178 extern int register_android_os_GraphicsEnvironment(JNIEnv* env);
179 extern int register_android_os_HidlSupport(JNIEnv* env);
180 extern int register_android_os_HwBinder(JNIEnv *env);
181 extern int register_android_os_HwBlob(JNIEnv *env);
182 extern int register_android_os_HwParcel(JNIEnv *env);
183 extern int register_android_os_HwRemoteBinder(JNIEnv *env);
184 extern int register_android_os_NativeHandle(JNIEnv *env);
185 extern int register_android_os_MessageQueue(JNIEnv* env);
186 extern int register_android_os_Parcel(JNIEnv* env);
187 extern int register_android_os_SELinux(JNIEnv* env);
188 extern int register_android_os_VintfObject(JNIEnv *env);
189 extern int register_android_os_VintfRuntimeInfo(JNIEnv *env);
190 extern int register_android_os_SystemProperties(JNIEnv *env);
191 extern int register_android_os_SystemClock(JNIEnv* env);
192 extern int register_android_os_Trace(JNIEnv* env);
193 extern int register_android_os_FileObserver(JNIEnv *env);
194 extern int register_android_os_UEventObserver(JNIEnv* env);
195 extern int register_android_os_MemoryFile(JNIEnv* env);
196 extern int register_android_os_SharedMemory(JNIEnv* env);
197 extern int register_android_net_LocalSocketImpl(JNIEnv* env);
198 extern int register_android_net_NetworkUtils(JNIEnv* env);
199 extern int register_android_text_AndroidCharacter(JNIEnv *env);
200 extern int register_android_text_Hyphenator(JNIEnv *env);
201 extern int register_android_opengl_classes(JNIEnv *env);
202 extern int register_android_ddm_DdmHandleNativeHeap(JNIEnv *env);
203 extern int register_android_server_NetworkManagementSocketTagger(JNIEnv* env);
204 extern int register_android_backup_BackupDataInput(JNIEnv *env);
205 extern int register_android_backup_BackupDataOutput(JNIEnv *env);
206 extern int register_android_backup_FileBackupHelperBase(JNIEnv *env);
207 extern int register_android_backup_BackupHelperDispatcher(JNIEnv *env);
208 extern int register_android_app_backup_FullBackup(JNIEnv *env);
209 extern int register_android_app_Activity(JNIEnv *env);
210 extern int register_android_app_ActivityThread(JNIEnv *env);
211 extern int register_android_app_NativeActivity(JNIEnv *env);
212 extern int register_android_media_RemoteDisplay(JNIEnv *env);
213 extern int register_android_util_jar_StrictJarFile(JNIEnv* env);
214 extern int register_android_view_InputChannel(JNIEnv* env);
215 extern int register_android_view_InputDevice(JNIEnv* env);
216 extern int register_android_view_InputEventReceiver(JNIEnv* env);
217 extern int register_android_view_InputEventSender(JNIEnv* env);
218 extern int register_android_view_InputQueue(JNIEnv* env);
219 extern int register_android_view_KeyCharacterMap(JNIEnv *env);
220 extern int register_android_view_KeyEvent(JNIEnv* env);
221 extern int register_android_view_MotionEvent(JNIEnv* env);
222 extern int register_android_view_PointerIcon(JNIEnv* env);
223 extern int register_android_view_VelocityTracker(JNIEnv* env);
224 extern int register_android_content_res_ObbScanner(JNIEnv* env);
225 extern int register_android_content_res_Configuration(JNIEnv* env);
226 extern int register_android_animation_PropertyValuesHolder(JNIEnv *env);
227 extern int register_android_security_Scrypt(JNIEnv *env);
228 extern int register_com_android_internal_content_NativeLibraryHelper(JNIEnv *env);
229 extern int register_com_android_internal_os_AtomicDirectory(JNIEnv *env);
230 extern int register_com_android_internal_os_ClassLoaderFactory(JNIEnv* env);
231 extern int register_com_android_internal_os_FuseAppLoop(JNIEnv* env);
232 extern int register_com_android_internal_os_Zygote(JNIEnv *env);
233 extern int register_com_android_internal_os_ZygoteInit(JNIEnv *env);
234 extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv *env);
235 
236 // Namespace for Android Runtime flags applied during boot time.
237 static const char* RUNTIME_NATIVE_BOOT_NAMESPACE = "runtime_native_boot";
238 // Feature flag name to enable/disable generational garbage collection in ART's
239 // Concurrent Copying (CC) garbage collector.
240 static const char* ENABLE_GENERATIONAL_CC = "enable_generational_cc";
241 // Runtime option enabling generational garbage collection in ART's Concurrent
242 // Copying (CC) garbage collector.
243 static const char* kGenerationalCCRuntimeOption = "-Xgc:generational_cc";
244 // Runtime option disabling generational garbage collection in ART's Concurrent
245 // Copying (CC) garbage collector.
246 static const char* kNoGenerationalCCRuntimeOption = "-Xgc:nogenerational_cc";
247 
248 // Feature flag name for running the JIT in Zygote experiment, b/119800099.
249 static const char* ENABLE_APEX_IMAGE = "enable_apex_image";
250 // Flag to pass to the runtime when using the apex image.
251 static const char* kApexImageOption = "-Ximage:/system/framework/apex.art";
252 
253 // Feature flag name for disabling lock profiling.
254 static const char* DISABLE_LOCK_PROFILING = "disable_lock_profiling";
255 // Runtime option disabling lock profiling.
256 static const char* kLockProfThresholdRuntimeOption = "-Xlockprofthreshold:0";
257 
258 static AndroidRuntime* gCurRuntime = NULL;
259 
260 /*
261  * Code written in the Java Programming Language calls here from main().
262  */
com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv * env,jobject clazz)263 static void com_android_internal_os_RuntimeInit_nativeFinishInit(JNIEnv* env, jobject clazz)
264 {
265     gCurRuntime->onStarted();
266 }
267 
com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv * env,jobject clazz)268 static void com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env, jobject clazz)
269 {
270     gCurRuntime->onZygoteInit();
271 }
272 
com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv * env,jobject clazz,jboolean exitWithoutCleanup)273 static void com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup(JNIEnv* env,
274         jobject clazz, jboolean exitWithoutCleanup)
275 {
276     gCurRuntime->setExitWithoutCleanup(exitWithoutCleanup);
277 }
278 
279 /*
280  * JNI registration.
281  */
282 
register_com_android_internal_os_RuntimeInit(JNIEnv * env)283 int register_com_android_internal_os_RuntimeInit(JNIEnv* env)
284 {
285     const JNINativeMethod methods[] = {
286         { "nativeFinishInit", "()V",
287             (void*) com_android_internal_os_RuntimeInit_nativeFinishInit },
288         { "nativeSetExitWithoutCleanup", "(Z)V",
289             (void*) com_android_internal_os_RuntimeInit_nativeSetExitWithoutCleanup },
290     };
291     return jniRegisterNativeMethods(env, "com/android/internal/os/RuntimeInit",
292         methods, NELEM(methods));
293 }
294 
register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv * env)295 int register_com_android_internal_os_ZygoteInit_nativeZygoteInit(JNIEnv* env)
296 {
297     const JNINativeMethod methods[] = {
298         { "nativeZygoteInit", "()V",
299             (void*) com_android_internal_os_ZygoteInit_nativeZygoteInit },
300     };
301     return jniRegisterNativeMethods(env, "com/android/internal/os/ZygoteInit",
302         methods, NELEM(methods));
303 }
304 
305 // ----------------------------------------------------------------------
306 
307 /*static*/ JavaVM* AndroidRuntime::mJavaVM = NULL;
308 
AndroidRuntime(char * argBlockStart,const size_t argBlockLength)309 AndroidRuntime::AndroidRuntime(char* argBlockStart, const size_t argBlockLength) :
310         mExitWithoutCleanup(false),
311         mArgBlockStart(argBlockStart),
312         mArgBlockLength(argBlockLength)
313 {
314     SkGraphics::Init();
315 
316     // Pre-allocate enough space to hold a fair number of options.
317     mOptions.setCapacity(20);
318 
319     assert(gCurRuntime == NULL);        // one per process
320     gCurRuntime = this;
321 }
322 
~AndroidRuntime()323 AndroidRuntime::~AndroidRuntime()
324 {
325 }
326 
327 /*
328  * Register native methods using JNI.
329  */
registerNativeMethods(JNIEnv * env,const char * className,const JNINativeMethod * gMethods,int numMethods)330 /*static*/ int AndroidRuntime::registerNativeMethods(JNIEnv* env,
331     const char* className, const JNINativeMethod* gMethods, int numMethods)
332 {
333     return jniRegisterNativeMethods(env, className, gMethods, numMethods);
334 }
335 
setArgv0(const char * argv0,bool setProcName)336 void AndroidRuntime::setArgv0(const char* argv0, bool setProcName) {
337     if (setProcName) {
338         int len = strlen(argv0);
339         if (len < 15) {
340             pthread_setname_np(pthread_self(), argv0);
341         } else {
342             pthread_setname_np(pthread_self(), argv0 + len - 15);
343         }
344     }
345     memset(mArgBlockStart, 0, mArgBlockLength);
346     strlcpy(mArgBlockStart, argv0, mArgBlockLength);
347 }
348 
callMain(const String8 & className,jclass clazz,const Vector<String8> & args)349 status_t AndroidRuntime::callMain(const String8& className, jclass clazz,
350     const Vector<String8>& args)
351 {
352     JNIEnv* env;
353     jmethodID methodId;
354 
355     ALOGD("Calling main entry %s", className.string());
356 
357     env = getJNIEnv();
358     if (clazz == NULL || env == NULL) {
359         return UNKNOWN_ERROR;
360     }
361 
362     methodId = env->GetStaticMethodID(clazz, "main", "([Ljava/lang/String;)V");
363     if (methodId == NULL) {
364         ALOGE("ERROR: could not find method %s.main(String[])\n", className.string());
365         return UNKNOWN_ERROR;
366     }
367 
368     /*
369      * We want to call main() with a String array with our arguments in it.
370      * Create an array and populate it.
371      */
372     jclass stringClass;
373     jobjectArray strArray;
374 
375     const size_t numArgs = args.size();
376     stringClass = env->FindClass("java/lang/String");
377     strArray = env->NewObjectArray(numArgs, stringClass, NULL);
378 
379     for (size_t i = 0; i < numArgs; i++) {
380         jstring argStr = env->NewStringUTF(args[i].string());
381         env->SetObjectArrayElement(strArray, i, argStr);
382     }
383 
384     env->CallStaticVoidMethod(clazz, methodId, strArray);
385     return NO_ERROR;
386 }
387 
388 /*
389  * The VM calls this through the "exit" hook.
390  */
runtime_exit(int code)391 static void runtime_exit(int code)
392 {
393     gCurRuntime->exit(code);
394 }
395 
396 /*
397  * The VM calls this through the "vfprintf" hook.
398  *
399  * We ignore "fp" and just write the results to the log file.
400  */
runtime_vfprintf(FILE * fp,const char * format,va_list ap)401 static void runtime_vfprintf(FILE* fp, const char* format, va_list ap)
402 {
403     LOG_PRI_VA(ANDROID_LOG_INFO, "vm-printf", format, ap);
404 }
405 
406 /**
407  * The VM calls this when mutex contention debugging is enabled to
408  * determine whether or not the blocked thread was a "sensitive thread"
409  * for user responsiveness/smoothess.
410  *
411  * Our policy for this is whether or not we're tracing any StrictMode
412  * events on this thread (which we might've inherited via Binder calls
413  * into us)
414  */
runtime_isSensitiveThread()415 static bool runtime_isSensitiveThread() {
416     IPCThreadState* state = IPCThreadState::selfOrNull();
417     return state && state->getStrictModePolicy() != 0;
418 }
419 
hasDir(const char * dir)420 static int hasDir(const char* dir)
421 {
422     struct stat s;
423     int res = stat(dir, &s);
424     if (res == 0) {
425         return S_ISDIR(s.st_mode);
426     }
427     return 0;
428 }
429 
hasFile(const char * file)430 static bool hasFile(const char* file) {
431     struct stat s;
432     int res = stat(file, &s);
433     if (res == 0) {
434         return S_ISREG(s.st_mode);
435     }
436     return false;
437 }
438 
439 /*
440  * Read the persistent locale. Inspects the following system properties
441  * (in order) and returns the first non-empty property in the list :
442  *
443  * (1) persist.sys.locale
444  * (2) persist.sys.language/country/localevar (country and localevar are
445  * inspected iff. language is non-empty.
446  * (3) ro.product.locale
447  * (4) ro.product.locale.language/region
448  *
449  * Note that we need to inspect persist.sys.language/country/localevar to
450  * preserve language settings for devices that are upgrading from Lollipop
451  * to M. The same goes for ro.product.locale.language/region as well.
452  */
readLocale()453 const std::string readLocale()
454 {
455     const std::string locale = GetProperty("persist.sys.locale", "");
456     if (!locale.empty()) {
457         return locale;
458     }
459 
460     const std::string language = GetProperty("persist.sys.language", "");
461     if (!language.empty()) {
462         const std::string country = GetProperty("persist.sys.country", "");
463         const std::string variant = GetProperty("persist.sys.localevar", "");
464 
465         std::string out = language;
466         if (!country.empty()) {
467             out = out + "-" + country;
468         }
469 
470         if (!variant.empty()) {
471             out = out + "-" + variant;
472         }
473 
474         return out;
475     }
476 
477     const std::string productLocale = GetProperty("ro.product.locale", "");
478     if (!productLocale.empty()) {
479         return productLocale;
480     }
481 
482     // If persist.sys.locale and ro.product.locale are missing,
483     // construct a locale value from the individual locale components.
484     const std::string productLanguage = GetProperty("ro.product.locale.language", "en");
485     const std::string productRegion = GetProperty("ro.product.locale.region", "US");
486 
487     return productLanguage + "-" + productRegion;
488 }
489 
addOption(const char * optionString,void * extraInfo)490 void AndroidRuntime::addOption(const char* optionString, void* extraInfo)
491 {
492     JavaVMOption opt;
493     opt.optionString = optionString;
494     opt.extraInfo = extraInfo;
495     mOptions.add(opt);
496 }
497 
498 /*
499  * Parse a property containing space-separated options that should be
500  * passed directly to the VM, e.g. "-Xmx32m -verbose:gc -Xregenmap".
501  *
502  * This will cut up "extraOptsBuf" as we chop it into individual options.
503  *
504  * If "quotingArg" is non-null, it is passed before each extra option in mOptions.
505  *
506  * Adds the strings, if any, to mOptions.
507  */
parseExtraOpts(char * extraOptsBuf,const char * quotingArg)508 void AndroidRuntime::parseExtraOpts(char* extraOptsBuf, const char* quotingArg)
509 {
510     char* start = extraOptsBuf;
511     char* end = NULL;
512     while (*start != '\0') {
513         while (*start == ' ')                   /* skip leading whitespace */
514             start++;
515         if (*start == '\0')                     /* was trailing ws, bail */
516             break;
517 
518         end = start+1;
519         while (*end != ' ' && *end != '\0')     /* find end of token */
520             end++;
521         if (*end == ' ')
522             *end++ = '\0';          /* mark end, advance to indicate more */
523 
524         if (quotingArg != NULL) {
525             addOption(quotingArg);
526         }
527         addOption(start);
528         start = end;
529     }
530 }
531 
532 /*
533  * Reads a "property" into "buffer" with a default of "defaultArg". If
534  * the property is non-empty, it is treated as a runtime option such
535  * as "-Xmx32m".
536  *
537  * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
538  *
539  * If an argument is found, it is added to mOptions.
540  *
541  * If an option is found, it is added to mOptions and true is
542  * returned. Otherwise false is returned.
543  */
parseRuntimeOption(const char * property,char * buffer,const char * runtimeArg,const char * defaultArg)544 bool AndroidRuntime::parseRuntimeOption(const char* property,
545                                         char* buffer,
546                                         const char* runtimeArg,
547                                         const char* defaultArg)
548 {
549     strcpy(buffer, runtimeArg);
550     size_t runtimeArgLen = strlen(runtimeArg);
551     property_get(property, buffer+runtimeArgLen, defaultArg);
552     if (buffer[runtimeArgLen] == '\0') {
553         return false;
554     }
555     addOption(buffer);
556     return true;
557 }
558 
559 /*
560  * Reads a "property" into "buffer". If the property is non-empty, it
561  * is treated as a dex2oat compiler option that should be
562  * passed as a quoted option, e.g. "-Ximage-compiler-option --compiler-filter=assume-verified".
563  *
564  * The "compilerArg" is a prefix for the option such as "--compiler-filter=".
565  *
566  * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
567  *
568  * If an option is found, it is added to mOptions and true is
569  * returned. Otherwise false is returned.
570  */
parseCompilerOption(const char * property,char * buffer,const char * compilerArg,const char * quotingArg)571 bool AndroidRuntime::parseCompilerOption(const char* property,
572                                          char* buffer,
573                                          const char* compilerArg,
574                                          const char* quotingArg)
575 {
576     strcpy(buffer, compilerArg);
577     size_t compilerArgLen = strlen(compilerArg);
578     property_get(property, buffer+compilerArgLen, "");
579     if (buffer[compilerArgLen] == '\0') {
580         return false;
581     }
582     addOption(quotingArg);
583     addOption(buffer);
584     return true;
585 }
586 
587 /*
588  * Reads a "property" into "buffer". If the property is non-empty, it
589  * is treated as a dex2oat compiler runtime option that should be
590  * passed as a quoted option, e.g. "-Ximage-compiler-option
591  * --runtime-arg -Ximage-compiler-option -Xmx32m".
592  *
593  * The "runtimeArg" is a prefix for the option such as "-Xms" or "-Xmx".
594  *
595  * The "quotingArg" should be "-Ximage-compiler-option" or "-Xcompiler-option".
596  *
597  * If an option is found, it is added to mOptions and true is
598  * returned. Otherwise false is returned.
599  */
parseCompilerRuntimeOption(const char * property,char * buffer,const char * runtimeArg,const char * quotingArg)600 bool AndroidRuntime::parseCompilerRuntimeOption(const char* property,
601                                                 char* buffer,
602                                                 const char* runtimeArg,
603                                                 const char* quotingArg)
604 {
605     strcpy(buffer, runtimeArg);
606     size_t runtimeArgLen = strlen(runtimeArg);
607     property_get(property, buffer+runtimeArgLen, "");
608     if (buffer[runtimeArgLen] == '\0') {
609         return false;
610     }
611     addOption(quotingArg);
612     addOption("--runtime-arg");
613     addOption(quotingArg);
614     addOption(buffer);
615     return true;
616 }
617 
618 /*
619  * Start the Dalvik Virtual Machine.
620  *
621  * Various arguments, most determined by system properties, are passed in.
622  * The "mOptions" vector is updated.
623  *
624  * CAUTION: when adding options in here, be careful not to put the
625  * char buffer inside a nested scope.  Adding the buffer to the
626  * options using mOptions.add() does not copy the buffer, so if the
627  * buffer goes out of scope the option may be overwritten.  It's best
628  * to put the buffer at the top of the function so that it is more
629  * unlikely that someone will surround it in a scope at a later time
630  * and thus introduce a bug.
631  *
632  * Returns 0 on success.
633  */
startVm(JavaVM ** pJavaVM,JNIEnv ** pEnv,bool zygote)634 int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv, bool zygote)
635 {
636     JavaVMInitArgs initArgs;
637     char propBuf[PROPERTY_VALUE_MAX];
638     char jniOptsBuf[sizeof("-Xjniopts:")-1 + PROPERTY_VALUE_MAX];
639     char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
640     char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
641     char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];
642     char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];
643     char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];
644     char usejitOptsBuf[sizeof("-Xusejit:")-1 + PROPERTY_VALUE_MAX];
645     char jitpthreadpriorityOptsBuf[sizeof("-Xjitpthreadpriority:")-1 + PROPERTY_VALUE_MAX];
646     char jitmaxsizeOptsBuf[sizeof("-Xjitmaxsize:")-1 + PROPERTY_VALUE_MAX];
647     char jitinitialsizeOptsBuf[sizeof("-Xjitinitialsize:")-1 + PROPERTY_VALUE_MAX];
648     char jitthresholdOptsBuf[sizeof("-Xjitthreshold:")-1 + PROPERTY_VALUE_MAX];
649     char useJitProfilesOptsBuf[sizeof("-Xjitsaveprofilinginfo:")-1 + PROPERTY_VALUE_MAX];
650     char jitprithreadweightOptBuf[sizeof("-Xjitprithreadweight:")-1 + PROPERTY_VALUE_MAX];
651     char jittransitionweightOptBuf[sizeof("-Xjittransitionweight:")-1 + PROPERTY_VALUE_MAX];
652     char hotstartupsamplesOptsBuf[sizeof("-Xps-hot-startup-method-samples:")-1 + PROPERTY_VALUE_MAX];
653     char madviseRandomOptsBuf[sizeof("-XX:MadviseRandomAccess:")-1 + PROPERTY_VALUE_MAX];
654     char gctypeOptsBuf[sizeof("-Xgc:")-1 + PROPERTY_VALUE_MAX];
655     char backgroundgcOptsBuf[sizeof("-XX:BackgroundGC=")-1 + PROPERTY_VALUE_MAX];
656     char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];
657     char foregroundHeapGrowthMultiplierOptsBuf[
658             sizeof("-XX:ForegroundHeapGrowthMultiplier=")-1 + PROPERTY_VALUE_MAX];
659     char cachePruneBuf[sizeof("-Xzygote-max-boot-retry=")-1 + PROPERTY_VALUE_MAX];
660     char dex2oatXmsImageFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
661     char dex2oatXmxImageFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
662     char dex2oatXmsFlagsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];
663     char dex2oatXmxFlagsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];
664     char dex2oatCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
665     char dex2oatImageCompilerFilterBuf[sizeof("--compiler-filter=")-1 + PROPERTY_VALUE_MAX];
666     char dex2oatThreadsBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
667     char dex2oatThreadsImageBuf[sizeof("-j")-1 + PROPERTY_VALUE_MAX];
668     char dex2oat_isa_variant_key[PROPERTY_KEY_MAX];
669     char dex2oat_isa_variant[sizeof("--instruction-set-variant=") -1 + PROPERTY_VALUE_MAX];
670     char dex2oat_isa_features_key[PROPERTY_KEY_MAX];
671     char dex2oat_isa_features[sizeof("--instruction-set-features=") -1 + PROPERTY_VALUE_MAX];
672     char dex2oatFlagsBuf[PROPERTY_VALUE_MAX];
673     char dex2oatImageFlagsBuf[PROPERTY_VALUE_MAX];
674     char extraOptsBuf[PROPERTY_VALUE_MAX];
675     char voldDecryptBuf[PROPERTY_VALUE_MAX];
676     enum {
677       kEMDefault,
678       kEMIntPortable,
679       kEMIntFast,
680       kEMJitCompiler,
681     } executionMode = kEMDefault;
682     char localeOption[sizeof("-Duser.locale=") + PROPERTY_VALUE_MAX];
683     char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];
684     char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];
685     char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];
686     char corePlatformApiPolicyBuf[sizeof("-Xcore-platform-api-policy:") + PROPERTY_VALUE_MAX];
687     char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];
688     char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];
689     std::string fingerprintBuf;
690     char jdwpProviderBuf[sizeof("-XjdwpProvider:") - 1 + PROPERTY_VALUE_MAX];
691     char bootImageBuf[sizeof("-Ximage:") - 1 + PROPERTY_VALUE_MAX];
692 
693     std::string use_apex_image =
694         server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
695                                                              ENABLE_APEX_IMAGE,
696                                                              /*default_value=*/ "");
697     if (use_apex_image == "true") {
698         addOption(kApexImageOption);
699         ALOGI("Using Apex boot image: '%s'\n", kApexImageOption);
700     } else if (parseRuntimeOption("dalvik.vm.boot-image", bootImageBuf, "-Ximage:")) {
701         ALOGI("Using dalvik.vm.boot-image: '%s'\n", bootImageBuf);
702     } else {
703         ALOGI("Using default boot image");
704     }
705 
706     std::string disable_lock_profiling =
707         server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
708                                                              DISABLE_LOCK_PROFILING,
709                                                              /*default_value=*/ "");
710     if (disable_lock_profiling == "true") {
711         addOption(kLockProfThresholdRuntimeOption);
712         ALOGI("Disabling lock profiling: '%s'\n", kLockProfThresholdRuntimeOption);
713     } else {
714         ALOGI("Leaving lock profiling enabled");
715     }
716 
717     bool checkJni = false;
718     property_get("dalvik.vm.checkjni", propBuf, "");
719     if (strcmp(propBuf, "true") == 0) {
720         checkJni = true;
721     } else if (strcmp(propBuf, "false") != 0) {
722         /* property is neither true nor false; fall back on kernel parameter */
723         property_get("ro.kernel.android.checkjni", propBuf, "");
724         if (propBuf[0] == '1') {
725             checkJni = true;
726         }
727     }
728     ALOGV("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
729     if (checkJni) {
730         /* extended JNI checking */
731         addOption("-Xcheck:jni");
732 
733         /* with -Xcheck:jni, this provides a JNI function call trace */
734         //addOption("-verbose:jni");
735     }
736 
737     property_get("dalvik.vm.execution-mode", propBuf, "");
738     if (strcmp(propBuf, "int:portable") == 0) {
739         executionMode = kEMIntPortable;
740     } else if (strcmp(propBuf, "int:fast") == 0) {
741         executionMode = kEMIntFast;
742     } else if (strcmp(propBuf, "int:jit") == 0) {
743         executionMode = kEMJitCompiler;
744     }
745 
746     strcpy(jniOptsBuf, "-Xjniopts:");
747     if (parseRuntimeOption("dalvik.vm.jniopts", jniOptsBuf, "-Xjniopts:")) {
748         ALOGI("JNI options: '%s'\n", jniOptsBuf);
749     }
750 
751     /* route exit() to our handler */
752     addOption("exit", (void*) runtime_exit);
753 
754     /* route fprintf() to our handler */
755     addOption("vfprintf", (void*) runtime_vfprintf);
756 
757     /* register the framework-specific "is sensitive thread" hook */
758     addOption("sensitiveThread", (void*) runtime_isSensitiveThread);
759 
760     /* enable verbose; standard options are { jni, gc, class } */
761     //addOption("-verbose:jni");
762     addOption("-verbose:gc");
763     //addOption("-verbose:class");
764 
765     /*
766      * The default starting and maximum size of the heap.  Larger
767      * values should be specified in a product property override.
768      */
769     parseRuntimeOption("dalvik.vm.heapstartsize", heapstartsizeOptsBuf, "-Xms", "4m");
770     parseRuntimeOption("dalvik.vm.heapsize", heapsizeOptsBuf, "-Xmx", "16m");
771 
772     parseRuntimeOption("dalvik.vm.heapgrowthlimit", heapgrowthlimitOptsBuf, "-XX:HeapGrowthLimit=");
773     parseRuntimeOption("dalvik.vm.heapminfree", heapminfreeOptsBuf, "-XX:HeapMinFree=");
774     parseRuntimeOption("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");
775     parseRuntimeOption("dalvik.vm.heaptargetutilization",
776                        heaptargetutilizationOptsBuf,
777                        "-XX:HeapTargetUtilization=");
778 
779     /* Foreground heap growth multiplier option */
780     parseRuntimeOption("dalvik.vm.foreground-heap-growth-multiplier",
781                        foregroundHeapGrowthMultiplierOptsBuf,
782                        "-XX:ForegroundHeapGrowthMultiplier=");
783 
784     /*
785      * JIT related options.
786      */
787     parseRuntimeOption("dalvik.vm.usejit", usejitOptsBuf, "-Xusejit:");
788     parseRuntimeOption("dalvik.vm.jitmaxsize", jitmaxsizeOptsBuf, "-Xjitmaxsize:");
789     parseRuntimeOption("dalvik.vm.jitinitialsize", jitinitialsizeOptsBuf, "-Xjitinitialsize:");
790     parseRuntimeOption("dalvik.vm.jitthreshold", jitthresholdOptsBuf, "-Xjitthreshold:");
791     parseRuntimeOption("dalvik.vm.jitpthreadpriority",
792                        jitpthreadpriorityOptsBuf,
793                        "-Xjitpthreadpriority:");
794     property_get("dalvik.vm.usejitprofiles", useJitProfilesOptsBuf, "");
795     if (strcmp(useJitProfilesOptsBuf, "true") == 0) {
796         addOption("-Xjitsaveprofilinginfo");
797     }
798 
799     parseRuntimeOption("dalvik.vm.jitprithreadweight",
800                        jitprithreadweightOptBuf,
801                        "-Xjitprithreadweight:");
802 
803     parseRuntimeOption("dalvik.vm.jittransitionweight",
804                        jittransitionweightOptBuf,
805                        "-Xjittransitionweight:");
806 
807     property_get("dalvik.vm.profilebootimage", propBuf, "");
808     if (strcmp(propBuf, "true") == 0) {
809         addOption("-Xps-profile-boot-class-path");
810         addOption("-Xps-profile-aot-code");
811     }
812 
813     /*
814      * Madvise related options.
815      */
816     parseRuntimeOption("dalvik.vm.madvise-random", madviseRandomOptsBuf, "-XX:MadviseRandomAccess:");
817 
818     /*
819      * Profile related options.
820      */
821     parseRuntimeOption("dalvik.vm.hot-startup-method-samples", hotstartupsamplesOptsBuf,
822             "-Xps-hot-startup-method-samples:");
823 
824     property_get("ro.config.low_ram", propBuf, "");
825     if (strcmp(propBuf, "true") == 0) {
826       addOption("-XX:LowMemoryMode");
827     }
828 
829     /*
830      * Garbage-collection related options.
831      */
832     parseRuntimeOption("dalvik.vm.gctype", gctypeOptsBuf, "-Xgc:");
833 
834     // If it set, honor the "enable_generational_cc" device configuration;
835     // otherwise, let the runtime use its default behavior.
836     std::string enable_generational_cc =
837         server_configurable_flags::GetServerConfigurableFlag(RUNTIME_NATIVE_BOOT_NAMESPACE,
838                                                              ENABLE_GENERATIONAL_CC,
839                                                              /*default_value=*/ "");
840     if (enable_generational_cc == "true") {
841         addOption(kGenerationalCCRuntimeOption);
842     } else if (enable_generational_cc == "false") {
843         addOption(kNoGenerationalCCRuntimeOption);
844     }
845 
846     parseRuntimeOption("dalvik.vm.backgroundgctype", backgroundgcOptsBuf, "-XX:BackgroundGC=");
847 
848     /*
849      * Enable debugging only for apps forked from zygote.
850      */
851     if (zygote) {
852       // Set the JDWP provider and required arguments. By default let the runtime choose how JDWP is
853       // implemented. When this is not set the runtime defaults to not allowing JDWP.
854       addOption("-XjdwpOptions:suspend=n,server=y");
855       parseRuntimeOption("dalvik.vm.jdwp-provider",
856                          jdwpProviderBuf,
857                          "-XjdwpProvider:",
858                          "default");
859     }
860 
861     parseRuntimeOption("dalvik.vm.lockprof.threshold",
862                        lockProfThresholdBuf,
863                        "-Xlockprofthreshold:");
864 
865     if (executionMode == kEMIntPortable) {
866         addOption("-Xint:portable");
867     } else if (executionMode == kEMIntFast) {
868         addOption("-Xint:fast");
869     } else if (executionMode == kEMJitCompiler) {
870         addOption("-Xint:jit");
871     }
872 
873     // If we are booting without the real /data, don't spend time compiling.
874     property_get("vold.decrypt", voldDecryptBuf, "");
875     bool skip_compilation = ((strcmp(voldDecryptBuf, "trigger_restart_min_framework") == 0) ||
876                              (strcmp(voldDecryptBuf, "1") == 0));
877 
878     // Extra options for boot.art/boot.oat image generation.
879     parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xms", dex2oatXmsImageFlagsBuf,
880                                "-Xms", "-Ximage-compiler-option");
881     parseCompilerRuntimeOption("dalvik.vm.image-dex2oat-Xmx", dex2oatXmxImageFlagsBuf,
882                                "-Xmx", "-Ximage-compiler-option");
883     if (skip_compilation) {
884         addOption("-Ximage-compiler-option");
885         addOption("--compiler-filter=assume-verified");
886     } else {
887         parseCompilerOption("dalvik.vm.image-dex2oat-filter", dex2oatImageCompilerFilterBuf,
888                             "--compiler-filter=", "-Ximage-compiler-option");
889     }
890 
891     // If there is a boot profile, it takes precedence over the image and preloaded classes.
892     if (hasFile("/system/etc/boot-image.prof")) {
893         addOption("-Ximage-compiler-option");
894         addOption("--profile-file=/system/etc/boot-image.prof");
895         addOption("-Ximage-compiler-option");
896         addOption("--compiler-filter=speed-profile");
897     } else {
898         // Make sure there is a preloaded-classes file.
899         if (!hasFile("/system/etc/preloaded-classes")) {
900             ALOGE("Missing preloaded-classes file, /system/etc/preloaded-classes not found: %s\n",
901                   strerror(errno));
902             return -1;
903         }
904         addOption("-Ximage-compiler-option");
905         addOption("--image-classes=/system/etc/preloaded-classes");
906 
907         // If there is a dirty-image-objects file, push it.
908         if (hasFile("/system/etc/dirty-image-objects")) {
909             addOption("-Ximage-compiler-option");
910             addOption("--dirty-image-objects=/system/etc/dirty-image-objects");
911         }
912     }
913 
914     property_get("dalvik.vm.image-dex2oat-flags", dex2oatImageFlagsBuf, "");
915     parseExtraOpts(dex2oatImageFlagsBuf, "-Ximage-compiler-option");
916 
917     // Extra options for DexClassLoader.
918     parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xms", dex2oatXmsFlagsBuf,
919                                "-Xms", "-Xcompiler-option");
920     parseCompilerRuntimeOption("dalvik.vm.dex2oat-Xmx", dex2oatXmxFlagsBuf,
921                                "-Xmx", "-Xcompiler-option");
922     if (skip_compilation) {
923         addOption("-Xcompiler-option");
924         addOption("--compiler-filter=assume-verified");
925 
926         // We skip compilation when a minimal runtime is brought up for decryption. In that case
927         // /data is temporarily backed by a tmpfs, which is usually small.
928         // If the system image contains prebuilts, they will be relocated into the tmpfs. In this
929         // specific situation it is acceptable to *not* relocate and run out of the prebuilts
930         // directly instead.
931         addOption("--runtime-arg");
932         addOption("-Xnorelocate");
933     } else {
934         parseCompilerOption("dalvik.vm.dex2oat-filter", dex2oatCompilerFilterBuf,
935                             "--compiler-filter=", "-Xcompiler-option");
936     }
937     parseCompilerOption("dalvik.vm.dex2oat-threads", dex2oatThreadsBuf, "-j", "-Xcompiler-option");
938     parseCompilerOption("dalvik.vm.image-dex2oat-threads", dex2oatThreadsImageBuf, "-j",
939                         "-Ximage-compiler-option");
940 
941     // The runtime will compile a boot image, when necessary, not using installd. Thus, we need to
942     // pass the instruction-set-features/variant as an image-compiler-option.
943     // Note: it is OK to reuse the buffer, as the values are exactly the same between
944     //       * compiler-option, used for runtime compilation (DexClassLoader)
945     //       * image-compiler-option, used for boot-image compilation on device
946 
947     // Copy the variant.
948     sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", ABI_STRING);
949     parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
950                         "--instruction-set-variant=", "-Ximage-compiler-option");
951     parseCompilerOption(dex2oat_isa_variant_key, dex2oat_isa_variant,
952                         "--instruction-set-variant=", "-Xcompiler-option");
953     // Copy the features.
954     sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", ABI_STRING);
955     parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
956                         "--instruction-set-features=", "-Ximage-compiler-option");
957     parseCompilerOption(dex2oat_isa_features_key, dex2oat_isa_features,
958                         "--instruction-set-features=", "-Xcompiler-option");
959 
960 
961     property_get("dalvik.vm.dex2oat-flags", dex2oatFlagsBuf, "");
962     parseExtraOpts(dex2oatFlagsBuf, "-Xcompiler-option");
963 
964     /* extra options; parse this late so it overrides others */
965     property_get("dalvik.vm.extra-opts", extraOptsBuf, "");
966     parseExtraOpts(extraOptsBuf, NULL);
967 
968     /* Set the properties for locale */
969     {
970         strcpy(localeOption, "-Duser.locale=");
971         const std::string locale = readLocale();
972         strncat(localeOption, locale.c_str(), PROPERTY_VALUE_MAX);
973         addOption(localeOption);
974     }
975 
976     // Trace files are stored in /data/misc/trace which is writable only in debug mode.
977     property_get("ro.debuggable", propBuf, "0");
978     if (strcmp(propBuf, "1") == 0) {
979         property_get("dalvik.vm.method-trace", propBuf, "false");
980         if (strcmp(propBuf, "true") == 0) {
981             addOption("-Xmethod-trace");
982             parseRuntimeOption("dalvik.vm.method-trace-file",
983                                methodTraceFileBuf,
984                                "-Xmethod-trace-file:");
985             parseRuntimeOption("dalvik.vm.method-trace-file-siz",
986                                methodTraceFileSizeBuf,
987                                "-Xmethod-trace-file-size:");
988             property_get("dalvik.vm.method-trace-stream", propBuf, "false");
989             if (strcmp(propBuf, "true") == 0) {
990                 addOption("-Xmethod-trace-stream");
991             }
992         }
993     }
994 
995     // Native bridge library. "0" means that native bridge is disabled.
996     //
997     // Note: bridging is only enabled for the zygote. Other runs of
998     //       app_process may not have the permissions to mount etc.
999     property_get("ro.dalvik.vm.native.bridge", propBuf, "");
1000     if (propBuf[0] == '\0') {
1001         ALOGW("ro.dalvik.vm.native.bridge is not expected to be empty");
1002     } else if (zygote && strcmp(propBuf, "0") != 0) {
1003         snprintf(nativeBridgeLibrary, sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX,
1004                  "-XX:NativeBridge=%s", propBuf);
1005         addOption(nativeBridgeLibrary);
1006     }
1007 
1008 #if defined(__LP64__)
1009     const char* cpu_abilist_property_name = "ro.product.cpu.abilist64";
1010 #else
1011     const char* cpu_abilist_property_name = "ro.product.cpu.abilist32";
1012 #endif  // defined(__LP64__)
1013     property_get(cpu_abilist_property_name, propBuf, "");
1014     if (propBuf[0] == '\0') {
1015         ALOGE("%s is not expected to be empty", cpu_abilist_property_name);
1016         return -1;
1017     }
1018     snprintf(cpuAbiListBuf, sizeof(cpuAbiListBuf), "--cpu-abilist=%s", propBuf);
1019     addOption(cpuAbiListBuf);
1020 
1021     // Dalvik-cache pruning counter.
1022     parseRuntimeOption("dalvik.vm.zygote.max-boot-retry", cachePruneBuf,
1023                        "-Xzygote-max-boot-retry=");
1024 
1025     /*
1026      * When running with debug.generate-debug-info, add --generate-debug-info to
1027      * the compiler options so that the boot image, if it is compiled on device,
1028      * will include native debugging information.
1029      */
1030     property_get("debug.generate-debug-info", propBuf, "");
1031     if (strcmp(propBuf, "true") == 0) {
1032         addOption("-Xcompiler-option");
1033         addOption("--generate-debug-info");
1034         addOption("-Ximage-compiler-option");
1035         addOption("--generate-debug-info");
1036     }
1037 
1038     // The mini-debug-info makes it possible to backtrace through JIT code.
1039     if (property_get_bool("dalvik.vm.minidebuginfo", 0)) {
1040         addOption("-Xcompiler-option");
1041         addOption("--generate-mini-debug-info");
1042     }
1043 
1044     // If set, the property below can be used to enable core platform API violation reporting.
1045     property_get("persist.debug.dalvik.vm.core_platform_api_policy", propBuf, "");
1046     if (propBuf[0] != '\0') {
1047       snprintf(corePlatformApiPolicyBuf,
1048                sizeof(corePlatformApiPolicyBuf),
1049                "-Xcore-platform-api-policy:%s",
1050                propBuf);
1051       addOption(corePlatformApiPolicyBuf);
1052     }
1053 
1054     /*
1055      * Retrieve the build fingerprint and provide it to the runtime. That way, ANR dumps will
1056      * contain the fingerprint and can be parsed.
1057      * Fingerprints are potentially longer than PROPERTY_VALUE_MAX, so parseRuntimeOption() cannot
1058      * be used here.
1059      * Do not ever re-assign fingerprintBuf as its c_str() value is stored in mOptions.
1060      */
1061     std::string fingerprint = GetProperty("ro.build.fingerprint", "");
1062     if (!fingerprint.empty()) {
1063         fingerprintBuf = "-Xfingerprint:" + fingerprint;
1064         addOption(fingerprintBuf.c_str());
1065     }
1066 
1067     initArgs.version = JNI_VERSION_1_4;
1068     initArgs.options = mOptions.editArray();
1069     initArgs.nOptions = mOptions.size();
1070     initArgs.ignoreUnrecognized = JNI_FALSE;
1071 
1072     /*
1073      * Initialize the VM.
1074      *
1075      * The JavaVM* is essentially per-process, and the JNIEnv* is per-thread.
1076      * If this call succeeds, the VM is ready, and we can start issuing
1077      * JNI calls.
1078      */
1079     if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {
1080         ALOGE("JNI_CreateJavaVM failed\n");
1081         return -1;
1082     }
1083 
1084     return 0;
1085 }
1086 
toSlashClassName(const char * className)1087 char* AndroidRuntime::toSlashClassName(const char* className)
1088 {
1089     char* result = strdup(className);
1090     for (char* cp = result; *cp != '\0'; cp++) {
1091         if (*cp == '.') {
1092             *cp = '/';
1093         }
1094     }
1095     return result;
1096 }
1097 
1098 /** Create a Java string from an ASCII or Latin-1 string */
NewStringLatin1(JNIEnv * env,const char * bytes)1099 jstring AndroidRuntime::NewStringLatin1(JNIEnv* env, const char* bytes) {
1100     if (!bytes) return NULL;
1101     int length = strlen(bytes);
1102     jchar* buffer = (jchar *)alloca(length * sizeof(jchar));
1103     if (!buffer) return NULL;
1104     jchar* chp = buffer;
1105     for (int i = 0; i < length; i++) {
1106         *chp++ = *bytes++;
1107     }
1108     return env->NewString(buffer, length);
1109 }
1110 
1111 
1112 /*
1113  * Start the Android runtime.  This involves starting the virtual machine
1114  * and calling the "static void main(String[] args)" method in the class
1115  * named by "className".
1116  *
1117  * Passes the main function two arguments, the class name and the specified
1118  * options string.
1119  */
start(const char * className,const Vector<String8> & options,bool zygote)1120 void AndroidRuntime::start(const char* className, const Vector<String8>& options, bool zygote)
1121 {
1122     ALOGD(">>>>>> START %s uid %d <<<<<<\n",
1123             className != NULL ? className : "(unknown)", getuid());
1124 
1125     static const String8 startSystemServer("start-system-server");
1126 
1127     /*
1128      * 'startSystemServer == true' means runtime is obsolete and not run from
1129      * init.rc anymore, so we print out the boot start event here.
1130      */
1131     for (size_t i = 0; i < options.size(); ++i) {
1132         if (options[i] == startSystemServer) {
1133            /* track our progress through the boot sequence */
1134            const int LOG_BOOT_PROGRESS_START = 3000;
1135            LOG_EVENT_LONG(LOG_BOOT_PROGRESS_START,  ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
1136         }
1137     }
1138 
1139     const char* rootDir = getenv("ANDROID_ROOT");
1140     if (rootDir == NULL) {
1141         rootDir = "/system";
1142         if (!hasDir("/system")) {
1143             LOG_FATAL("No root directory specified, and /system does not exist.");
1144             return;
1145         }
1146         setenv("ANDROID_ROOT", rootDir, 1);
1147     }
1148 
1149     const char* runtimeRootDir = getenv("ANDROID_RUNTIME_ROOT");
1150     if (runtimeRootDir == NULL) {
1151         LOG_FATAL("No runtime directory specified with ANDROID_RUNTIME_ROOT environment variable.");
1152         return;
1153     }
1154 
1155     const char* tzdataRootDir = getenv("ANDROID_TZDATA_ROOT");
1156     if (tzdataRootDir == NULL) {
1157         LOG_FATAL("No tz data directory specified with ANDROID_TZDATA_ROOT environment variable.");
1158         return;
1159     }
1160 
1161     //const char* kernelHack = getenv("LD_ASSUME_KERNEL");
1162     //ALOGD("Found LD_ASSUME_KERNEL='%s'\n", kernelHack);
1163 
1164     /* start the virtual machine */
1165     JniInvocation jni_invocation;
1166     jni_invocation.Init(NULL);
1167     JNIEnv* env;
1168     if (startVm(&mJavaVM, &env, zygote) != 0) {
1169         return;
1170     }
1171     onVmCreated(env);
1172 
1173     /*
1174      * Register android functions.
1175      */
1176     if (startReg(env) < 0) {
1177         ALOGE("Unable to register all android natives\n");
1178         return;
1179     }
1180 
1181     /*
1182      * We want to call main() with a String array with arguments in it.
1183      * At present we have two arguments, the class name and an option string.
1184      * Create an array to hold them.
1185      */
1186     jclass stringClass;
1187     jobjectArray strArray;
1188     jstring classNameStr;
1189 
1190     stringClass = env->FindClass("java/lang/String");
1191     assert(stringClass != NULL);
1192     strArray = env->NewObjectArray(options.size() + 1, stringClass, NULL);
1193     assert(strArray != NULL);
1194     classNameStr = env->NewStringUTF(className);
1195     assert(classNameStr != NULL);
1196     env->SetObjectArrayElement(strArray, 0, classNameStr);
1197 
1198     for (size_t i = 0; i < options.size(); ++i) {
1199         jstring optionsStr = env->NewStringUTF(options.itemAt(i).string());
1200         assert(optionsStr != NULL);
1201         env->SetObjectArrayElement(strArray, i + 1, optionsStr);
1202     }
1203 
1204     /*
1205      * Start VM.  This thread becomes the main thread of the VM, and will
1206      * not return until the VM exits.
1207      */
1208     char* slashClassName = toSlashClassName(className != NULL ? className : "");
1209     jclass startClass = env->FindClass(slashClassName);
1210     if (startClass == NULL) {
1211         ALOGE("JavaVM unable to locate class '%s'\n", slashClassName);
1212         /* keep going */
1213     } else {
1214         jmethodID startMeth = env->GetStaticMethodID(startClass, "main",
1215             "([Ljava/lang/String;)V");
1216         if (startMeth == NULL) {
1217             ALOGE("JavaVM unable to find main() in '%s'\n", className);
1218             /* keep going */
1219         } else {
1220             env->CallStaticVoidMethod(startClass, startMeth, strArray);
1221 
1222 #if 0
1223             if (env->ExceptionCheck())
1224                 threadExitUncaughtException(env);
1225 #endif
1226         }
1227     }
1228     free(slashClassName);
1229 
1230     ALOGD("Shutting down VM\n");
1231     if (mJavaVM->DetachCurrentThread() != JNI_OK)
1232         ALOGW("Warning: unable to detach main thread\n");
1233     if (mJavaVM->DestroyJavaVM() != 0)
1234         ALOGW("Warning: VM did not shut down cleanly\n");
1235 }
1236 
exit(int code)1237 void AndroidRuntime::exit(int code)
1238 {
1239     if (mExitWithoutCleanup) {
1240         ALOGI("VM exiting with result code %d, cleanup skipped.", code);
1241         ::_exit(code);
1242     } else {
1243         ALOGI("VM exiting with result code %d.", code);
1244         onExit(code);
1245         ::exit(code);
1246     }
1247 }
1248 
onVmCreated(JNIEnv * env)1249 void AndroidRuntime::onVmCreated(JNIEnv* env)
1250 {
1251     // If AndroidRuntime had anything to do here, we'd have done it in 'start'.
1252 }
1253 
1254 /*
1255  * Get the JNIEnv pointer for this thread.
1256  *
1257  * Returns NULL if the slot wasn't allocated or populated.
1258  */
getJNIEnv()1259 /*static*/ JNIEnv* AndroidRuntime::getJNIEnv()
1260 {
1261     JNIEnv* env;
1262     JavaVM* vm = AndroidRuntime::getJavaVM();
1263     assert(vm != NULL);
1264 
1265     if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK)
1266         return NULL;
1267     return env;
1268 }
1269 
1270 /*
1271  * Makes the current thread visible to the VM.
1272  *
1273  * The JNIEnv pointer returned is only valid for the current thread, and
1274  * thus must be tucked into thread-local storage.
1275  */
javaAttachThread(const char * threadName,JNIEnv ** pEnv)1276 static int javaAttachThread(const char* threadName, JNIEnv** pEnv)
1277 {
1278     JavaVMAttachArgs args;
1279     JavaVM* vm;
1280     jint result;
1281 
1282     vm = AndroidRuntime::getJavaVM();
1283     assert(vm != NULL);
1284 
1285     args.version = JNI_VERSION_1_4;
1286     args.name = (char*) threadName;
1287     args.group = NULL;
1288 
1289     result = vm->AttachCurrentThread(pEnv, (void*) &args);
1290     if (result != JNI_OK)
1291         ALOGI("NOTE: attach of thread '%s' failed\n", threadName);
1292 
1293     return result;
1294 }
1295 
1296 /*
1297  * Detach the current thread from the set visible to the VM.
1298  */
javaDetachThread(void)1299 static int javaDetachThread(void)
1300 {
1301     JavaVM* vm;
1302     jint result;
1303 
1304     vm = AndroidRuntime::getJavaVM();
1305     assert(vm != NULL);
1306 
1307     result = vm->DetachCurrentThread();
1308     if (result != JNI_OK)
1309         ALOGE("ERROR: thread detach failed\n");
1310     return result;
1311 }
1312 
1313 /*
1314  * When starting a native thread that will be visible from the VM, we
1315  * bounce through this to get the right attach/detach action.
1316  * Note that this function calls free(args)
1317  */
javaThreadShell(void * args)1318 /*static*/ int AndroidRuntime::javaThreadShell(void* args) {
1319     void* start = ((void**)args)[0];
1320     void* userData = ((void **)args)[1];
1321     char* name = (char*) ((void **)args)[2];        // we own this storage
1322     free(args);
1323     JNIEnv* env;
1324     int result;
1325 
1326     /* hook us into the VM */
1327     if (javaAttachThread(name, &env) != JNI_OK)
1328         return -1;
1329 
1330     /* start the thread running */
1331     result = (*(android_thread_func_t)start)(userData);
1332 
1333     /* unhook us */
1334     javaDetachThread();
1335     free(name);
1336 
1337     return result;
1338 }
1339 
1340 /*
1341  * This is invoked from androidCreateThreadEtc() via the callback
1342  * set with androidSetCreateThreadFunc().
1343  *
1344  * We need to create the new thread in such a way that it gets hooked
1345  * into the VM before it really starts executing.
1346  */
javaCreateThreadEtc(android_thread_func_t entryFunction,void * userData,const char * threadName,int32_t threadPriority,size_t threadStackSize,android_thread_id_t * threadId)1347 /*static*/ int AndroidRuntime::javaCreateThreadEtc(
1348                                 android_thread_func_t entryFunction,
1349                                 void* userData,
1350                                 const char* threadName,
1351                                 int32_t threadPriority,
1352                                 size_t threadStackSize,
1353                                 android_thread_id_t* threadId)
1354 {
1355     void** args = (void**) malloc(3 * sizeof(void*));   // javaThreadShell must free
1356     int result;
1357 
1358     LOG_ALWAYS_FATAL_IF(threadName == nullptr, "threadName not provided to javaCreateThreadEtc");
1359 
1360     args[0] = (void*) entryFunction;
1361     args[1] = userData;
1362     args[2] = (void*) strdup(threadName);   // javaThreadShell must free
1363 
1364     result = androidCreateRawThreadEtc(AndroidRuntime::javaThreadShell, args,
1365         threadName, threadPriority, threadStackSize, threadId);
1366     return result;
1367 }
1368 
1369 /*
1370  * Create a thread that is visible from the VM.
1371  *
1372  * This is called from elsewhere in the library.
1373  */
createJavaThread(const char * name,void (* start)(void *),void * arg)1374 /*static*/ android_thread_id_t AndroidRuntime::createJavaThread(const char* name,
1375     void (*start)(void *), void* arg)
1376 {
1377     android_thread_id_t threadId = 0;
1378     javaCreateThreadEtc((android_thread_func_t) start, arg, name,
1379         ANDROID_PRIORITY_DEFAULT, 0, &threadId);
1380     return threadId;
1381 }
1382 
1383 #if 0
1384 static void quickTest(void* arg)
1385 {
1386     const char* str = (const char*) arg;
1387 
1388     printf("In quickTest: %s\n", str);
1389 }
1390 #endif
1391 
1392 #ifdef NDEBUG
1393     #define REG_JNI(name)      { name }
1394     struct RegJNIRec {
1395         int (*mProc)(JNIEnv*);
1396     };
1397 #else
1398     #define REG_JNI(name)      { name, #name }
1399     struct RegJNIRec {
1400         int (*mProc)(JNIEnv*);
1401         const char* mName;
1402     };
1403 #endif
1404 
1405 typedef void (*RegJAMProc)();
1406 
register_jni_procs(const RegJNIRec array[],size_t count,JNIEnv * env)1407 static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env)
1408 {
1409     for (size_t i = 0; i < count; i++) {
1410         if (array[i].mProc(env) < 0) {
1411 #ifndef NDEBUG
1412             ALOGD("----------!!! %s failed to load\n", array[i].mName);
1413 #endif
1414             return -1;
1415         }
1416     }
1417     return 0;
1418 }
1419 
1420 static const RegJNIRec gRegJNI[] = {
1421     REG_JNI(register_com_android_internal_os_RuntimeInit),
1422     REG_JNI(register_com_android_internal_os_ZygoteInit_nativeZygoteInit),
1423     REG_JNI(register_android_os_SystemClock),
1424     REG_JNI(register_android_util_EventLog),
1425     REG_JNI(register_android_util_Log),
1426     REG_JNI(register_android_util_MemoryIntArray),
1427     REG_JNI(register_android_util_PathParser),
1428     REG_JNI(register_android_util_StatsLog),
1429     REG_JNI(register_android_util_StatsLogInternal),
1430     REG_JNI(register_android_app_admin_SecurityLog),
1431     REG_JNI(register_android_content_AssetManager),
1432     REG_JNI(register_android_content_StringBlock),
1433     REG_JNI(register_android_content_XmlBlock),
1434     REG_JNI(register_android_content_res_ApkAssets),
1435     REG_JNI(register_android_text_AndroidCharacter),
1436     REG_JNI(register_android_text_Hyphenator),
1437     REG_JNI(register_android_view_InputDevice),
1438     REG_JNI(register_android_view_KeyCharacterMap),
1439     REG_JNI(register_android_os_Process),
1440     REG_JNI(register_android_os_SystemProperties),
1441     REG_JNI(register_android_os_Binder),
1442     REG_JNI(register_android_os_Parcel),
1443     REG_JNI(register_android_os_HidlSupport),
1444     REG_JNI(register_android_os_HwBinder),
1445     REG_JNI(register_android_os_HwBlob),
1446     REG_JNI(register_android_os_HwParcel),
1447     REG_JNI(register_android_os_HwRemoteBinder),
1448     REG_JNI(register_android_os_NativeHandle),
1449     REG_JNI(register_android_os_VintfObject),
1450     REG_JNI(register_android_os_VintfRuntimeInfo),
1451     REG_JNI(register_android_graphics_Canvas),
1452     // This needs to be before register_android_graphics_Graphics, or the latter
1453     // will not be able to find the jmethodID for ColorSpace.get().
1454     REG_JNI(register_android_graphics_ColorSpace),
1455     REG_JNI(register_android_graphics_Graphics),
1456     REG_JNI(register_android_view_DisplayEventReceiver),
1457     REG_JNI(register_android_view_RenderNode),
1458     REG_JNI(register_android_view_RenderNodeAnimator),
1459     REG_JNI(register_android_view_DisplayListCanvas),
1460     REG_JNI(register_android_view_InputApplicationHandle),
1461     REG_JNI(register_android_view_InputWindowHandle),
1462     REG_JNI(register_android_view_TextureLayer),
1463     REG_JNI(register_android_view_ThreadedRenderer),
1464     REG_JNI(register_android_view_Surface),
1465     REG_JNI(register_android_view_SurfaceControl),
1466     REG_JNI(register_android_view_SurfaceSession),
1467     REG_JNI(register_android_view_CompositionSamplingListener),
1468     REG_JNI(register_android_view_TextureView),
1469     REG_JNI(register_com_android_internal_view_animation_NativeInterpolatorFactoryHelper),
1470     REG_JNI(register_com_google_android_gles_jni_EGLImpl),
1471     REG_JNI(register_com_google_android_gles_jni_GLImpl),
1472     REG_JNI(register_android_opengl_jni_EGL14),
1473     REG_JNI(register_android_opengl_jni_EGL15),
1474     REG_JNI(register_android_opengl_jni_EGLExt),
1475     REG_JNI(register_android_opengl_jni_GLES10),
1476     REG_JNI(register_android_opengl_jni_GLES10Ext),
1477     REG_JNI(register_android_opengl_jni_GLES11),
1478     REG_JNI(register_android_opengl_jni_GLES11Ext),
1479     REG_JNI(register_android_opengl_jni_GLES20),
1480     REG_JNI(register_android_opengl_jni_GLES30),
1481     REG_JNI(register_android_opengl_jni_GLES31),
1482     REG_JNI(register_android_opengl_jni_GLES31Ext),
1483     REG_JNI(register_android_opengl_jni_GLES32),
1484 
1485     REG_JNI(register_android_graphics_Bitmap),
1486     REG_JNI(register_android_graphics_BitmapFactory),
1487     REG_JNI(register_android_graphics_BitmapRegionDecoder),
1488     REG_JNI(register_android_graphics_ByteBufferStreamAdaptor),
1489     REG_JNI(register_android_graphics_Camera),
1490     REG_JNI(register_android_graphics_CreateJavaOutputStreamAdaptor),
1491     REG_JNI(register_android_graphics_CanvasProperty),
1492     REG_JNI(register_android_graphics_ColorFilter),
1493     REG_JNI(register_android_graphics_DrawFilter),
1494     REG_JNI(register_android_graphics_FontFamily),
1495     REG_JNI(register_android_graphics_GraphicBuffer),
1496     REG_JNI(register_android_graphics_ImageDecoder),
1497     REG_JNI(register_android_graphics_drawable_AnimatedImageDrawable),
1498     REG_JNI(register_android_graphics_Interpolator),
1499     REG_JNI(register_android_graphics_MaskFilter),
1500     REG_JNI(register_android_graphics_Matrix),
1501     REG_JNI(register_android_graphics_Movie),
1502     REG_JNI(register_android_graphics_NinePatch),
1503     REG_JNI(register_android_graphics_Paint),
1504     REG_JNI(register_android_graphics_Path),
1505     REG_JNI(register_android_graphics_PathMeasure),
1506     REG_JNI(register_android_graphics_PathEffect),
1507     REG_JNI(register_android_graphics_Picture),
1508     REG_JNI(register_android_graphics_Region),
1509     REG_JNI(register_android_graphics_Shader),
1510     REG_JNI(register_android_graphics_SurfaceTexture),
1511     REG_JNI(register_android_graphics_Typeface),
1512     REG_JNI(register_android_graphics_YuvImage),
1513     REG_JNI(register_android_graphics_drawable_AnimatedVectorDrawable),
1514     REG_JNI(register_android_graphics_drawable_VectorDrawable),
1515     REG_JNI(register_android_graphics_fonts_Font),
1516     REG_JNI(register_android_graphics_fonts_FontFamily),
1517     REG_JNI(register_android_graphics_pdf_PdfDocument),
1518     REG_JNI(register_android_graphics_pdf_PdfEditor),
1519     REG_JNI(register_android_graphics_pdf_PdfRenderer),
1520     REG_JNI(register_android_graphics_text_MeasuredText),
1521     REG_JNI(register_android_graphics_text_LineBreaker),
1522 
1523     REG_JNI(register_android_database_CursorWindow),
1524     REG_JNI(register_android_database_SQLiteConnection),
1525     REG_JNI(register_android_database_SQLiteGlobal),
1526     REG_JNI(register_android_database_SQLiteDebug),
1527     REG_JNI(register_android_os_Debug),
1528     REG_JNI(register_android_os_FileObserver),
1529     REG_JNI(register_android_os_GraphicsEnvironment),
1530     REG_JNI(register_android_os_MessageQueue),
1531     REG_JNI(register_android_os_SELinux),
1532     REG_JNI(register_android_os_Trace),
1533     REG_JNI(register_android_os_UEventObserver),
1534     REG_JNI(register_android_net_LocalSocketImpl),
1535     REG_JNI(register_android_net_NetworkUtils),
1536     REG_JNI(register_android_os_MemoryFile),
1537     REG_JNI(register_android_os_SharedMemory),
1538     REG_JNI(register_com_android_internal_os_ClassLoaderFactory),
1539     REG_JNI(register_com_android_internal_os_Zygote),
1540     REG_JNI(register_com_android_internal_os_ZygoteInit),
1541     REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
1542     REG_JNI(register_android_hardware_Camera),
1543     REG_JNI(register_android_hardware_camera2_CameraMetadata),
1544     REG_JNI(register_android_hardware_camera2_legacy_LegacyCameraDevice),
1545     REG_JNI(register_android_hardware_camera2_legacy_PerfMeasurement),
1546     REG_JNI(register_android_hardware_camera2_DngCreator),
1547     REG_JNI(register_android_hardware_HardwareBuffer),
1548     REG_JNI(register_android_hardware_SensorManager),
1549     REG_JNI(register_android_hardware_SerialPort),
1550     REG_JNI(register_android_hardware_SoundTrigger),
1551     REG_JNI(register_android_hardware_UsbDevice),
1552     REG_JNI(register_android_hardware_UsbDeviceConnection),
1553     REG_JNI(register_android_hardware_UsbRequest),
1554     REG_JNI(register_android_hardware_location_ActivityRecognitionHardware),
1555     REG_JNI(register_android_media_AudioEffectDescriptor),
1556     REG_JNI(register_android_media_AudioSystem),
1557     REG_JNI(register_android_media_AudioRecord),
1558     REG_JNI(register_android_media_AudioTrack),
1559     REG_JNI(register_android_media_AudioAttributes),
1560     REG_JNI(register_android_media_AudioProductStrategies),
1561     REG_JNI(register_android_media_AudioVolumeGroups),
1562     REG_JNI(register_android_media_AudioVolumeGroupChangeHandler),
1563     REG_JNI(register_android_media_JetPlayer),
1564     REG_JNI(register_android_media_MicrophoneInfo),
1565     REG_JNI(register_android_media_RemoteDisplay),
1566     REG_JNI(register_android_media_ToneGenerator),
1567     REG_JNI(register_android_media_midi),
1568 
1569     REG_JNI(register_android_opengl_classes),
1570     REG_JNI(register_android_server_NetworkManagementSocketTagger),
1571     REG_JNI(register_android_ddm_DdmHandleNativeHeap),
1572     REG_JNI(register_android_backup_BackupDataInput),
1573     REG_JNI(register_android_backup_BackupDataOutput),
1574     REG_JNI(register_android_backup_FileBackupHelperBase),
1575     REG_JNI(register_android_backup_BackupHelperDispatcher),
1576     REG_JNI(register_android_app_backup_FullBackup),
1577     REG_JNI(register_android_app_Activity),
1578     REG_JNI(register_android_app_ActivityThread),
1579     REG_JNI(register_android_app_NativeActivity),
1580     REG_JNI(register_android_util_jar_StrictJarFile),
1581     REG_JNI(register_android_view_InputChannel),
1582     REG_JNI(register_android_view_InputEventReceiver),
1583     REG_JNI(register_android_view_InputEventSender),
1584     REG_JNI(register_android_view_InputQueue),
1585     REG_JNI(register_android_view_KeyEvent),
1586     REG_JNI(register_android_view_MotionEvent),
1587     REG_JNI(register_android_view_PointerIcon),
1588     REG_JNI(register_android_view_VelocityTracker),
1589 
1590     REG_JNI(register_android_content_res_ObbScanner),
1591     REG_JNI(register_android_content_res_Configuration),
1592 
1593     REG_JNI(register_android_animation_PropertyValuesHolder),
1594     REG_JNI(register_android_security_Scrypt),
1595     REG_JNI(register_com_android_internal_content_NativeLibraryHelper),
1596     REG_JNI(register_com_android_internal_os_AtomicDirectory),
1597     REG_JNI(register_com_android_internal_os_FuseAppLoop),
1598 };
1599 
1600 /*
1601  * Register android native functions with the VM.
1602  */
startReg(JNIEnv * env)1603 /*static*/ int AndroidRuntime::startReg(JNIEnv* env)
1604 {
1605     ATRACE_NAME("RegisterAndroidNatives");
1606     /*
1607      * This hook causes all future threads created in this process to be
1608      * attached to the JavaVM.  (This needs to go away in favor of JNI
1609      * Attach calls.)
1610      */
1611     androidSetCreateThreadFunc((android_create_thread_fn) javaCreateThreadEtc);
1612 
1613     ALOGV("--- registering native functions ---\n");
1614 
1615     /*
1616      * Every "register" function calls one or more things that return
1617      * a local reference (e.g. FindClass).  Because we haven't really
1618      * started the VM yet, they're all getting stored in the base frame
1619      * and never released.  Use Push/Pop to manage the storage.
1620      */
1621     env->PushLocalFrame(200);
1622 
1623     if (register_jni_procs(gRegJNI, NELEM(gRegJNI), env) < 0) {
1624         env->PopLocalFrame(NULL);
1625         return -1;
1626     }
1627     env->PopLocalFrame(NULL);
1628 
1629     //createJavaThread("fubar", quickTest, (void*) "hello");
1630 
1631     return 0;
1632 }
1633 
getRuntime()1634 AndroidRuntime* AndroidRuntime::getRuntime()
1635 {
1636     return gCurRuntime;
1637 }
1638 
1639 /**
1640  * Used by surface flinger's DdmConnection to register native methods from
1641  * the framework.
1642  */
registerFrameworkNatives(JNIEnv * env)1643 extern "C" jint registerFrameworkNatives(JNIEnv* env) {
1644     return register_jni_procs(gRegJNI, NELEM(gRegJNI), env);
1645 }
1646 }   // namespace android
1647